223 files changed, 5830 insertions, 3372 deletions

diff --git a/CREDITS b/CREDITS
index 29be6d1fdf49..0fe904ebb7c7 100644
--- a/CREDITS
+++ b/CREDITS
@@ -2209,7 +2209,7 @@ S: (address available on request)
 S: USA
 
 N: Ian McDonald
-E: iam4@cs.waikato.ac.nz
+E: ian.mcdonald@jandi.co.nz
 E: imcdnzl@gmail.com
 W: http://wand.net.nz/~iam4
 W: http://imcdnzl.blogspot.com
diff --git a/Documentation/connector/ucon.c b/Documentation/connector/ucon.c
new file mode 100644
index 000000000000..d738cde2a8d5
--- /dev/null
+++ b/Documentation/connector/ucon.c
@@ -0,0 +1,206 @@
+/*
+ *      ucon.c
+ *
+ * Copyright (c) 2004+ Evgeniy Polyakov <johnpol@2ka.mipt.ru>
+ *
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+#include <asm/types.h>
+
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <sys/poll.h>
+
+#include <linux/netlink.h>
+#include <linux/rtnetlink.h>
+
+#include <arpa/inet.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <string.h>
+#include <errno.h>
+#include <time.h>
+
+#include <linux/connector.h>
+
+#define DEBUG
+#define NETLINK_CONNECTOR       11
+
+#ifdef DEBUG
+#define ulog(f, a...) fprintf(stdout, f, ##a)
+#else
+#define ulog(f, a...) do {} while (0)
+#endif
+
+static int need_exit;
+static __u32 seq;
+
+static int netlink_send(int s, struct cn_msg *msg)
+{
+        struct nlmsghdr *nlh;
+        unsigned int size;
+        int err;
+        char buf[128];
+        struct cn_msg *m;
+
+        size = NLMSG_SPACE(sizeof(struct cn_msg) + msg->len);
+
+        nlh = (struct nlmsghdr *)buf;
+        nlh->nlmsg_seq = seq++;
+        nlh->nlmsg_pid = getpid();
+        nlh->nlmsg_type = NLMSG_DONE;
+        nlh->nlmsg_len = NLMSG_LENGTH(size - sizeof(*nlh));
+        nlh->nlmsg_flags = 0;
+
+        m = NLMSG_DATA(nlh);
+#if 0
+        ulog("%s: [%08x.%08x] len=%u, seq=%u, ack=%u.\n",
+               __func__, msg->id.idx, msg->id.val, msg->len, msg->seq, msg->ack);
+#endif
+        memcpy(m, msg, sizeof(*m) + msg->len);
+
+        err = send(s, nlh, size, 0);
+        if (err == -1)
+                ulog("Failed to send: %s [%d].\n",
+                        strerror(errno), errno);
+
+        return err;
+}
+
+int main(int argc, char *argv[])
+{
+        int s;
+        char buf[1024];
+        int len;
+        struct nlmsghdr *reply;
+        struct sockaddr_nl l_local;
+        struct cn_msg *data;
+        FILE *out;
+        time_t tm;
+        struct pollfd pfd;
+
+        if (argc < 2)
+                out = stdout;
+        else {
+                out = fopen(argv[1], "a+");
+                if (!out) {
+                        ulog("Unable to open %s for writing: %s\n",
+                                argv[1], strerror(errno));
+                        out = stdout;
+                }
+        }
+
+        memset(buf, 0, sizeof(buf));
+
+        s = socket(PF_NETLINK, SOCK_DGRAM, NETLINK_CONNECTOR);
+        if (s == -1) {
+                perror("socket");
+                return -1;
+        }
+
+        l_local.nl_family = AF_NETLINK;
+        l_local.nl_groups = 0x123; /* bitmask of requested groups */
+        l_local.nl_pid = 0;
+
+        if (bind(s, (struct sockaddr *)&l_local, sizeof(struct sockaddr_nl)) == -1) {
+                perror("bind");
+                close(s);
+                return -1;
+        }
+
+#if 0
+        {
+                int on = 0x57; /* Additional group number */
+                setsockopt(s, SOL_NETLINK, NETLINK_ADD_MEMBERSHIP, &on, sizeof(on));
+        }
+#endif
+        if (0) {
+                int i, j;
+
+                memset(buf, 0, sizeof(buf));
+
+                data = (struct cn_msg *)buf;
+
+                data->id.idx = 0x123;
+                data->id.val = 0x456;
+                data->seq = seq++;
+                data->ack = 0;
+                data->len = 0;
+
+                for (j=0; j<10; ++j) {
+                        for (i=0; i<1000; ++i) {
+                                len = netlink_send(s, data);
+                        }
+
+                        ulog("%d messages have been sent to %08x.%08x.\n", i, data->id.idx, data->id.val);
+                }
+
+                return 0;
+        }
+
+
+        pfd.fd = s;
+
+        while (!need_exit) {
+                pfd.events = POLLIN;
+                pfd.revents = 0;
+                switch (poll(&pfd, 1, -1)) {
+                        case 0:
+                                need_exit = 1;
+                                break;
+                        case -1:
+                                if (errno != EINTR) {
+                                        need_exit = 1;
+                                        break;
+                                }
+                                continue;
+                }
+                if (need_exit)
+                        break;
+
+                memset(buf, 0, sizeof(buf));
+                len = recv(s, buf, sizeof(buf), 0);
+                if (len == -1) {
+                        perror("recv buf");
+                        close(s);
+                        return -1;
+                }
+                reply = (struct nlmsghdr *)buf;
+
+                switch (reply->nlmsg_type) {
+                case NLMSG_ERROR:
+                        fprintf(out, "Error message received.\n");
+                        fflush(out);
+                        break;
+                case NLMSG_DONE:
+                        data = (struct cn_msg *)NLMSG_DATA(reply);
+
+                        time(&tm);
+                        fprintf(out, "%.24s : [%x.%x] [%08u.%08u].\n",
+                                ctime(&tm), data->id.idx, data->id.val, data->seq, data->ack);
+                        fflush(out);
+                        break;
+                default:
+                        break;
+                }
+        }
+
+        close(s);
+        return 0;
+}
diff --git a/Documentation/cpusets.txt b/Documentation/cpusets.txt
index 159e2a0c3e80..76b44290c154 100644
--- a/Documentation/cpusets.txt
+++ b/Documentation/cpusets.txt
@@ -217,6 +217,12 @@ exclusive cpuset.  Also, the use of a Linux virtual file system (vfs)
 to represent the cpuset hierarchy provides for a familiar permission
 and name space for cpusets, with a minimum of additional kernel code.
 
+The cpus file in the root (top_cpuset) cpuset is read-only.
+It automatically tracks the value of cpu_online_map, using a CPU
+hotplug notifier.  If and when memory nodes can be hotplugged,
+we expect to make the mems file in the root cpuset read-only
+as well, and have it track the value of node_online_map.
+
 
 1.4 What are exclusive cpusets ?
 --------------------------------
diff --git a/Documentation/filesystems/00-INDEX b/Documentation/filesystems/00-INDEX
index 66fdc0744fe0..16dec61d7671 100644
--- a/Documentation/filesystems/00-INDEX
+++ b/Documentation/filesystems/00-INDEX
@@ -62,8 +62,8 @@ ramfs-rootfs-initramfs.txt
         - info on the 'in memory' filesystems ramfs, rootfs and initramfs.
 reiser4.txt
         - info on the Reiser4 filesystem based on dancing tree algorithms.
-relayfs.txt
-        - info on relayfs, for efficient streaming from kernel to user space.
+relay.txt
+        - info on relay, for efficient streaming from kernel to user space.
 romfs.txt
         - description of the ROMFS filesystem.
 smbfs.txt
diff --git a/Documentation/filesystems/relay.txt b/Documentation/filesystems/relay.txt
new file mode 100644
index 000000000000..d6788dae0349
--- /dev/null
+++ b/Documentation/filesystems/relay.txt
@@ -0,0 +1,479 @@
+relay interface (formerly relayfs)
+==================================
+
+The relay interface provides a means for kernel applications to
+efficiently log and transfer large quantities of data from the kernel
+to userspace via user-defined 'relay channels'.
+
+A 'relay channel' is a kernel->user data relay mechanism implemented
+as a set of per-cpu kernel buffers ('channel buffers'), each
+represented as a regular file ('relay file') in user space.  Kernel
+clients write into the channel buffers using efficient write
+functions; these automatically log into the current cpu's channel
+buffer.  User space applications mmap() or read() from the relay files
+and retrieve the data as it becomes available.  The relay files
+themselves are files created in a host filesystem, e.g. debugfs, and
+are associated with the channel buffers using the API described below.
+
+The format of the data logged into the channel buffers is completely
+up to the kernel client; the relay interface does however provide
+hooks which allow kernel clients to impose some structure on the
+buffer data.  The relay interface doesn't implement any form of data
+filtering - this also is left to the kernel client.  The purpose is to
+keep things as simple as possible.
+
+This document provides an overview of the relay interface API.  The
+details of the function parameters are documented along with the
+functions in the relay interface code - please see that for details.
+
+Semantics
+=========
+
+Each relay channel has one buffer per CPU, each buffer has one or more
+sub-buffers.  Messages are written to the first sub-buffer until it is
+too full to contain a new message, in which case it it is written to
+the next (if available).  Messages are never split across sub-buffers.
+At this point, userspace can be notified so it empties the first
+sub-buffer, while the kernel continues writing to the next.
+
+When notified that a sub-buffer is full, the kernel knows how many
+bytes of it are padding i.e. unused space occurring because a complete
+message couldn't fit into a sub-buffer.  Userspace can use this
+knowledge to copy only valid data.
+
+After copying it, userspace can notify the kernel that a sub-buffer
+has been consumed.
+
+A relay channel can operate in a mode where it will overwrite data not
+yet collected by userspace, and not wait for it to be consumed.
+
+The relay channel itself does not provide for communication of such
+data between userspace and kernel, allowing the kernel side to remain
+simple and not impose a single interface on userspace.  It does
+provide a set of examples and a separate helper though, described
+below.
+
+The read() interface both removes padding and internally consumes the
+read sub-buffers; thus in cases where read(2) is being used to drain
+the channel buffers, special-purpose communication between kernel and
+user isn't necessary for basic operation.
+
+One of the major goals of the relay interface is to provide a low
+overhead mechanism for conveying kernel data to userspace.  While the
+read() interface is easy to use, it's not as efficient as the mmap()
+approach; the example code attempts to make the tradeoff between the
+two approaches as small as possible.
+
+klog and relay-apps example code
+================================
+
+The relay interface itself is ready to use, but to make things easier,
+a couple simple utility functions and a set of examples are provided.
+
+The relay-apps example tarball, available on the relay sourceforge
+site, contains a set of self-contained examples, each consisting of a
+pair of .c files containing boilerplate code for each of the user and
+kernel sides of a relay application.  When combined these two sets of
+boilerplate code provide glue to easily stream data to disk, without
+having to bother with mundane housekeeping chores.
+
+The 'klog debugging functions' patch (klog.patch in the relay-apps
+tarball) provides a couple of high-level logging functions to the
+kernel which allow writing formatted text or raw data to a channel,
+regardless of whether a channel to write into exists or not, or even
+whether the relay interface is compiled into the kernel or not.  These
+functions allow you to put unconditional 'trace' statements anywhere
+in the kernel or kernel modules; only when there is a 'klog handler'
+registered will data actually be logged (see the klog and kleak
+examples for details).
+
+It is of course possible to use the relay interface from scratch,
+i.e. without using any of the relay-apps example code or klog, but
+you'll have to implement communication between userspace and kernel,
+allowing both to convey the state of buffers (full, empty, amount of
+padding).  The read() interface both removes padding and internally
+consumes the read sub-buffers; thus in cases where read(2) is being
+used to drain the channel buffers, special-purpose communication
+between kernel and user isn't necessary for basic operation.  Things
+such as buffer-full conditions would still need to be communicated via
+some channel though.
+
+klog and the relay-apps examples can be found in the relay-apps
+tarball on http://relayfs.sourceforge.net
+
+The relay interface user space API
+==================================
+
+The relay interface implements basic file operations for user space
+access to relay channel buffer data.  Here are the file operations
+that are available and some comments regarding their behavior:
+
+open()      enables user to open an _existing_ channel buffer.
+
+mmap()      results in channel buffer being mapped into the caller's
+            memory space. Note that you can't do a partial mmap - you
+            must map the entire file, which is NRBUF * SUBBUFSIZE.
+
+read()      read the contents of a channel buffer.  The bytes read are
+            'consumed' by the reader, i.e. they won't be available
+            again to subsequent reads.  If the channel is being used
+            in no-overwrite mode (the default), it can be read at any
+            time even if there's an active kernel writer.  If the
+            channel is being used in overwrite mode and there are
+            active channel writers, results may be unpredictable -
+            users should make sure that all logging to the channel has
+            ended before using read() with overwrite mode.  Sub-buffer
+            padding is automatically removed and will not be seen by
+            the reader.
+
+sendfile()  transfer data from a channel buffer to an output file
+            descriptor. Sub-buffer padding is automatically removed
+            and will not be seen by the reader.
+
+poll()      POLLIN/POLLRDNORM/POLLERR supported.  User applications are
+            notified when sub-buffer boundaries are crossed.
+
+close()     decrements the channel buffer's refcount.  When the refcount
+            reaches 0, i.e. when no process or kernel client has the
+            buffer open, the channel buffer is freed.
+
+In order for a user application to make use of relay files, the
+host filesystem must be mounted.  For example,
+
+        mount -t debugfs debugfs /debug
+
+NOTE:   the host filesystem doesn't need to be mounted for kernel
+        clients to create or use channels - it only needs to be
+        mounted when user space applications need access to the buffer
+        data.
+
+
+The relay interface kernel API
+==============================
+
+Here's a summary of the API the relay interface provides to in-kernel clients:
+
+TBD(curr. line MT:/API/)
+  channel management functions:
+
+    relay_open(base_filename, parent, subbuf_size, n_subbufs,
+               callbacks)
+    relay_close(chan)
+    relay_flush(chan)
+    relay_reset(chan)
+
+  channel management typically called on instigation of userspace:
+
+    relay_subbufs_consumed(chan, cpu, subbufs_consumed)
+
+  write functions:
+
+    relay_write(chan, data, length)
+    __relay_write(chan, data, length)
+    relay_reserve(chan, length)
+
+  callbacks:
+
+    subbuf_start(buf, subbuf, prev_subbuf, prev_padding)
+    buf_mapped(buf, filp)
+    buf_unmapped(buf, filp)
+    create_buf_file(filename, parent, mode, buf, is_global)
+    remove_buf_file(dentry)
+
+  helper functions:
+
+    relay_buf_full(buf)
+    subbuf_start_reserve(buf, length)
+
+
+Creating a channel
+------------------
+
+relay_open() is used to create a channel, along with its per-cpu
+channel buffers.  Each channel buffer will have an associated file
+created for it in the host filesystem, which can be and mmapped or
+read from in user space.  The files are named basename0...basenameN-1
+where N is the number of online cpus, and by default will be created
+in the root of the filesystem (if the parent param is NULL).  If you
+want a directory structure to contain your relay files, you should
+create it using the host filesystem's directory creation function,
+e.g. debugfs_create_dir(), and pass the parent directory to
+relay_open().  Users are responsible for cleaning up any directory
+structure they create, when the channel is closed - again the host
+filesystem's directory removal functions should be used for that,
+e.g. debugfs_remove().
+
+In order for a channel to be created and the host filesystem's files
+associated with its channel buffers, the user must provide definitions
+for two callback functions, create_buf_file() and remove_buf_file().
+create_buf_file() is called once for each per-cpu buffer from
+relay_open() and allows the user to create the file which will be used
+to represent the corresponding channel buffer.  The callback should
+return the dentry of the file created to represent the channel buffer.
+remove_buf_file() must also be defined; it's responsible for deleting
+the file(s) created in create_buf_file() and is called during
+relay_close().
+
+Here are some typical definitions for these callbacks, in this case
+using debugfs:
+
+/*
+ * create_buf_file() callback.  Creates relay file in debugfs.
+ */
+static struct dentry *create_buf_file_handler(const char *filename,
+                                              struct dentry *parent,
+                                              int mode,
+                                              struct rchan_buf *buf,
+                                              int *is_global)
+{
+        return debugfs_create_file(filename, mode, parent, buf,
+                                   &relay_file_operations);
+}
+
+/*
+ * remove_buf_file() callback.  Removes relay file from debugfs.
+ */
+static int remove_buf_file_handler(struct dentry *dentry)
+{
+        debugfs_remove(dentry);
+
+        return 0;
+}
+
+/*
+ * relay interface callbacks
+ */
+static struct rchan_callbacks relay_callbacks =
+{
+        .create_buf_file = create_buf_file_handler,
+        .remove_buf_file = remove_buf_file_handler,
+};
+
+And an example relay_open() invocation using them:
+
+  chan = relay_open("cpu", NULL, SUBBUF_SIZE, N_SUBBUFS, &relay_callbacks);
+
+If the create_buf_file() callback fails, or isn't defined, channel
+creation and thus relay_open() will fail.
+
+The total size of each per-cpu buffer is calculated by multiplying the
+number of sub-buffers by the sub-buffer size passed into relay_open().
+The idea behind sub-buffers is that they're basically an extension of
+double-buffering to N buffers, and they also allow applications to
+easily implement random-access-on-buffer-boundary schemes, which can
+be important for some high-volume applications.  The number and size
+of sub-buffers is completely dependent on the application and even for
+the same application, different conditions will warrant different
+values for these parameters at different times.  Typically, the right
+values to use are best decided after some experimentation; in general,
+though, it's safe to assume that having only 1 sub-buffer is a bad
+idea - you're guaranteed to either overwrite data or lose events
+depending on the channel mode being used.
+
+The create_buf_file() implementation can also be defined in such a way
+as to allow the creation of a single 'global' buffer instead of the
+default per-cpu set.  This can be useful for applications interested
+mainly in seeing the relative ordering of system-wide events without
+the need to bother with saving explicit timestamps for the purpose of
+merging/sorting per-cpu files in a postprocessing step.
+
+To have relay_open() create a global buffer, the create_buf_file()
+implementation should set the value of the is_global outparam to a
+non-zero value in addition to creating the file that will be used to
+represent the single buffer.  In the case of a global buffer,
+create_buf_file() and remove_buf_file() will be called only once.  The
+normal channel-writing functions, e.g. relay_write(), can still be
+used - writes from any cpu will transparently end up in the global
+buffer - but since it is a global buffer, callers should make sure
+they use the proper locking for such a buffer, either by wrapping
+writes in a spinlock, or by copying a write function from relay.h and
+creating a local version that internally does the proper locking.
+
+Channel 'modes'
+---------------
+
+relay channels can be used in either of two modes - 'overwrite' or
+'no-overwrite'.  The mode is entirely determined by the implementation
+of the subbuf_start() callback, as described below.  The default if no
+subbuf_start() callback is defined is 'no-overwrite' mode.  If the
+default mode suits your needs, and you plan to use the read()
+interface to retrieve channel data, you can ignore the details of this
+section, as it pertains mainly to mmap() implementations.
+
+In 'overwrite' mode, also known as 'flight recorder' mode, writes
+continuously cycle around the buffer and will never fail, but will
+unconditionally overwrite old data regardless of whether it's actually
+been consumed.  In no-overwrite mode, writes will fail, i.e. data will
+be lost, if the number of unconsumed sub-buffers equals the total
+number of sub-buffers in the channel.  It should be clear that if
+there is no consumer or if the consumer can't consume sub-buffers fast
+enough, data will be lost in either case; the only difference is
+whether data is lost from the beginning or the end of a buffer.
+
+As explained above, a relay channel is made of up one or more
+per-cpu channel buffers, each implemented as a circular buffer
+subdivided into one or more sub-buffers.  Messages are written into
+the current sub-buffer of the channel's current per-cpu buffer via the
+write functions described below.  Whenever a message can't fit into
+the current sub-buffer, because there's no room left for it, the
+client is notified via the subbuf_start() callback that a switch to a
+new sub-buffer is about to occur.  The client uses this callback to 1)
+initialize the next sub-buffer if appropriate 2) finalize the previous
+sub-buffer if appropriate and 3) return a boolean value indicating
+whether or not to actually move on to the next sub-buffer.
+
+To implement 'no-overwrite' mode, the userspace client would provide
+an implementation of the subbuf_start() callback something like the
+following:
+
+static int subbuf_start(struct rchan_buf *buf,
+                        void *subbuf,
+                        void *prev_subbuf,
+                        unsigned int prev_padding)
+{
+        if (prev_subbuf)
+                *((unsigned *)prev_subbuf) = prev_padding;
+
+        if (relay_buf_full(buf))
+                return 0;
+
+        subbuf_start_reserve(buf, sizeof(unsigned int));
+
+        return 1;
+}
+
+If the current buffer is full, i.e. all sub-buffers remain unconsumed,
+the callback returns 0 to indicate that the buffer switch should not
+occur yet, i.e. until the consumer has had a chance to read the
+current set of ready sub-buffers.  For the relay_buf_full() function
+to make sense, the consumer is reponsible for notifying the relay
+interface when sub-buffers have been consumed via
+relay_subbufs_consumed().  Any subsequent attempts to write into the
+buffer will again invoke the subbuf_start() callback with the same
+parameters; only when the consumer has consumed one or more of the
+ready sub-buffers will relay_buf_full() return 0, in which case the
+buffer switch can continue.
+
+The implementation of the subbuf_start() callback for 'overwrite' mode
+would be very similar:
+
+static int subbuf_start(struct rchan_buf *buf,
+                        void *subbuf,
+                        void *prev_subbuf,
+                        unsigned int prev_padding)
+{
+        if (prev_subbuf)
+                *((unsigned *)prev_subbuf) = prev_padding;
+
+        subbuf_start_reserve(buf, sizeof(unsigned int));
+
+        return 1;
+}
+
+In this case, the relay_buf_full() check is meaningless and the
+callback always returns 1, causing the buffer switch to occur
+unconditionally.  It's also meaningless for the client to use the
+relay_subbufs_consumed() function in this mode, as it's never
+consulted.
+
+The default subbuf_start() implementation, used if the client doesn't
+define any callbacks, or doesn't define the subbuf_start() callback,
+implements the simplest possible 'no-overwrite' mode, i.e. it does
+nothing but return 0.
+
+Header information can be reserved at the beginning of each sub-buffer
+by calling the subbuf_start_reserve() helper function from within the
+subbuf_start() callback.  This reserved area can be used to store
+whatever information the client wants.  In the example above, room is
+reserved in each sub-buffer to store the padding count for that
+sub-buffer.  This is filled in for the previous sub-buffer in the
+subbuf_start() implementation; the padding value for the previous
+sub-buffer is passed into the subbuf_start() callback along with a
+pointer to the previous sub-buffer, since the padding value isn't
+known until a sub-buffer is filled.  The subbuf_start() callback is
+also called for the first sub-buffer when the channel is opened, to
+give the client a chance to reserve space in it.  In this case the
+previous sub-buffer pointer passed into the callback will be NULL, so
+the client should check the value of the prev_subbuf pointer before
+writing into the previous sub-buffer.
+
+Writing to a channel
+--------------------
+
+Kernel clients write data into the current cpu's channel buffer using
+relay_write() or __relay_write().  relay_write() is the main logging
+function - it uses local_irqsave() to protect the buffer and should be
+used if you might be logging from interrupt context.  If you know
+you'll never be logging from interrupt context, you can use
+__relay_write(), which only disables preemption.  These functions
+don't return a value, so you can't determine whether or not they
+failed - the assumption is that you wouldn't want to check a return
+value in the fast logging path anyway, and that they'll always succeed
+unless the buffer is full and no-overwrite mode is being used, in
+which case you can detect a failed write in the subbuf_start()
+callback by calling the relay_buf_full() helper function.
+
+relay_reserve() is used to reserve a slot in a channel buffer which
+can be written to later.  This would typically be used in applications
+that need to write directly into a channel buffer without having to
+stage data in a temporary buffer beforehand.  Because the actual write
+may not happen immediately after the slot is reserved, applications
+using relay_reserve() can keep a count of the number of bytes actually
+written, either in space reserved in the sub-buffers themselves or as
+a separate array.  See the 'reserve' example in the relay-apps tarball
+at http://relayfs.sourceforge.net for an example of how this can be
+done.  Because the write is under control of the client and is
+separated from the reserve, relay_reserve() doesn't protect the buffer
+at all - it's up to the client to provide the appropriate
+synchronization when using relay_reserve().
+
+Closing a channel
+-----------------
+
+The client calls relay_close() when it's finished using the channel.
+The channel and its associated buffers are destroyed when there are no
+longer any references to any of the channel buffers.  relay_flush()
+forces a sub-buffer switch on all the channel buffers, and can be used
+to finalize and process the last sub-buffers before the channel is
+closed.
+
+Misc
+----
+
+Some applications may want to keep a channel around and re-use it
+rather than open and close a new channel for each use.  relay_reset()
+can be used for this purpose - it resets a channel to its initial
+state without reallocating channel buffer memory or destroying
+existing mappings.  It should however only be called when it's safe to
+do so, i.e. when the channel isn't currently being written to.
+
+Finally, there are a couple of utility callbacks that can be used for
+different purposes.  buf_mapped() is called whenever a channel buffer
+is mmapped from user space and buf_unmapped() is called when it's
+unmapped.  The client can use this notification to trigger actions
+within the kernel application, such as enabling/disabling logging to
+the channel.
+
+
+Resources
+=========
+
+For news, example code, mailing list, etc. see the relay interface homepage:
+
+    http://relayfs.sourceforge.net
+
+
+Credits
+=======
+
+The ideas and specs for the relay interface came about as a result of
+discussions on tracing involving the following:
+
+Michel Dagenais         <michel.dagenais@polymtl.ca>
+Richard Moore           <richardj_moore@uk.ibm.com>
+Bob Wisniewski          <bob@watson.ibm.com>
+Karim Yaghmour          <karim@opersys.com>
+Tom Zanussi             <zanussi@us.ibm.com>
+
+Also thanks to Hubertus Franke for a lot of useful suggestions and bug
+reports.
diff --git a/Documentation/filesystems/relayfs.txt b/Documentation/filesystems/relayfs.txt
deleted file mode 100644
index 5832377b7340..000000000000
--- a/Documentation/filesystems/relayfs.txt
+++ /dev/null
@@ -1,442 +0,0 @@
-
-relayfs - a high-speed data relay filesystem
-============================================
-
-relayfs is a filesystem designed to provide an efficient mechanism for
-tools and facilities to relay large and potentially sustained streams
-of data from kernel space to user space.
-
-The main abstraction of relayfs is the 'channel'.  A channel consists
-of a set of per-cpu kernel buffers each represented by a file in the
-relayfs filesystem.  Kernel clients write into a channel using
-efficient write functions which automatically log to the current cpu's
-channel buffer.  User space applications mmap() the per-cpu files and
-retrieve the data as it becomes available.
-
-The format of the data logged into the channel buffers is completely
-up to the relayfs client; relayfs does however provide hooks which
-allow clients to impose some structure on the buffer data.  Nor does
-relayfs implement any form of data filtering - this also is left to
-the client.  The purpose is to keep relayfs as simple as possible.
-
-This document provides an overview of the relayfs API.  The details of
-the function parameters are documented along with the functions in the
-filesystem code - please see that for details.
-
-Semantics
-=========
-
-Each relayfs channel has one buffer per CPU, each buffer has one or
-more sub-buffers. Messages are written to the first sub-buffer until
-it is too full to contain a new message, in which case it it is
-written to the next (if available).  Messages are never split across
-sub-buffers.  At this point, userspace can be notified so it empties
-the first sub-buffer, while the kernel continues writing to the next.
-
-When notified that a sub-buffer is full, the kernel knows how many
-bytes of it are padding i.e. unused.  Userspace can use this knowledge
-to copy only valid data.
-
-After copying it, userspace can notify the kernel that a sub-buffer
-has been consumed.
-
-relayfs can operate in a mode where it will overwrite data not yet
-collected by userspace, and not wait for it to consume it.
-
-relayfs itself does not provide for communication of such data between
-userspace and kernel, allowing the kernel side to remain simple and
-not impose a single interface on userspace. It does provide a set of
-examples and a separate helper though, described below.
-
-klog and relay-apps example code
-================================
-
-relayfs itself is ready to use, but to make things easier, a couple
-simple utility functions and a set of examples are provided.
-
-The relay-apps example tarball, available on the relayfs sourceforge
-site, contains a set of self-contained examples, each consisting of a
-pair of .c files containing boilerplate code for each of the user and
-kernel sides of a relayfs application; combined these two sets of
-boilerplate code provide glue to easily stream data to disk, without
-having to bother with mundane housekeeping chores.
-
-The 'klog debugging functions' patch (klog.patch in the relay-apps
-tarball) provides a couple of high-level logging functions to the
-kernel which allow writing formatted text or raw data to a channel,
-regardless of whether a channel to write into exists or not, or
-whether relayfs is compiled into the kernel or is configured as a
-module.  These functions allow you to put unconditional 'trace'
-statements anywhere in the kernel or kernel modules; only when there
-is a 'klog handler' registered will data actually be logged (see the
-klog and kleak examples for details).
-
-It is of course possible to use relayfs from scratch i.e. without
-using any of the relay-apps example code or klog, but you'll have to
-implement communication between userspace and kernel, allowing both to
-convey the state of buffers (full, empty, amount of padding).
-
-klog and the relay-apps examples can be found in the relay-apps
-tarball on http://relayfs.sourceforge.net
-
-
-The relayfs user space API
-==========================
-
-relayfs implements basic file operations for user space access to
-relayfs channel buffer data.  Here are the file operations that are
-available and some comments regarding their behavior:
-
-open()   enables user to open an _existing_ buffer.
-
-mmap()   results in channel buffer being mapped into the caller's
-         memory space. Note that you can't do a partial mmap - you must
-         map the entire file, which is NRBUF * SUBBUFSIZE.
-
-read()   read the contents of a channel buffer.  The bytes read are
-         'consumed' by the reader i.e. they won't be available again
-         to subsequent reads.  If the channel is being used in
-         no-overwrite mode (the default), it can be read at any time
-         even if there's an active kernel writer.  If the channel is
-         being used in overwrite mode and there are active channel
-         writers, results may be unpredictable - users should make
-         sure that all logging to the channel has ended before using
-         read() with overwrite mode.
-
-poll()   POLLIN/POLLRDNORM/POLLERR supported.  User applications are
-         notified when sub-buffer boundaries are crossed.
-
-close() decrements the channel buffer's refcount.  When the refcount
-        reaches 0 i.e. when no process or kernel client has the buffer
-        open, the channel buffer is freed.
-
-
-In order for a user application to make use of relayfs files, the
-relayfs filesystem must be mounted.  For example,
-
-        mount -t relayfs relayfs /mnt/relay
-
-NOTE:   relayfs doesn't need to be mounted for kernel clients to create
-        or use channels - it only needs to be mounted when user space
-        applications need access to the buffer data.
-
-
-The relayfs kernel API
-======================
-
-Here's a summary of the API relayfs provides to in-kernel clients:
-
-
-  channel management functions:
-
-    relay_open(base_filename, parent, subbuf_size, n_subbufs,
-               callbacks)
-    relay_close(chan)
-    relay_flush(chan)
-    relay_reset(chan)
-    relayfs_create_dir(name, parent)
-    relayfs_remove_dir(dentry)
-    relayfs_create_file(name, parent, mode, fops, data)
-    relayfs_remove_file(dentry)
-
-  channel management typically called on instigation of userspace:
-
-    relay_subbufs_consumed(chan, cpu, subbufs_consumed)
-
-  write functions:
-
-    relay_write(chan, data, length)
-    __relay_write(chan, data, length)
-    relay_reserve(chan, length)
-
-  callbacks:
-
-    subbuf_start(buf, subbuf, prev_subbuf, prev_padding)
-    buf_mapped(buf, filp)
-    buf_unmapped(buf, filp)
-    create_buf_file(filename, parent, mode, buf, is_global)
-    remove_buf_file(dentry)
-
-  helper functions:
-
-    relay_buf_full(buf)
-    subbuf_start_reserve(buf, length)
-
-
-Creating a channel
-------------------
-
-relay_open() is used to create a channel, along with its per-cpu
-channel buffers.  Each channel buffer will have an associated file
-created for it in the relayfs filesystem, which can be opened and
-mmapped from user space if desired.  The files are named
-basename0...basenameN-1 where N is the number of online cpus, and by
-default will be created in the root of the filesystem.  If you want a
-directory structure to contain your relayfs files, you can create it
-with relayfs_create_dir() and pass the parent directory to
-relay_open().  Clients are responsible for cleaning up any directory
-structure they create when the channel is closed - use
-relayfs_remove_dir() for that.
-
-The total size of each per-cpu buffer is calculated by multiplying the
-number of sub-buffers by the sub-buffer size passed into relay_open().
-The idea behind sub-buffers is that they're basically an extension of
-double-buffering to N buffers, and they also allow applications to
-easily implement random-access-on-buffer-boundary schemes, which can
-be important for some high-volume applications.  The number and size
-of sub-buffers is completely dependent on the application and even for
-the same application, different conditions will warrant different
-values for these parameters at different times.  Typically, the right
-values to use are best decided after some experimentation; in general,
-though, it's safe to assume that having only 1 sub-buffer is a bad
-idea - you're guaranteed to either overwrite data or lose events
-depending on the channel mode being used.
-
-Channel 'modes'
----------------
-
-relayfs channels can be used in either of two modes - 'overwrite' or
-'no-overwrite'.  The mode is entirely determined by the implementation
-of the subbuf_start() callback, as described below.  In 'overwrite'
-mode, also known as 'flight recorder' mode, writes continuously cycle
-around the buffer and will never fail, but will unconditionally
-overwrite old data regardless of whether it's actually been consumed.
-In no-overwrite mode, writes will fail i.e. data will be lost, if the
-number of unconsumed sub-buffers equals the total number of
-sub-buffers in the channel.  It should be clear that if there is no
-consumer or if the consumer can't consume sub-buffers fast enought,
-data will be lost in either case; the only difference is whether data
-is lost from the beginning or the end of a buffer.
-
-As explained above, a relayfs channel is made of up one or more
-per-cpu channel buffers, each implemented as a circular buffer
-subdivided into one or more sub-buffers.  Messages are written into
-the current sub-buffer of the channel's current per-cpu buffer via the
-write functions described below.  Whenever a message can't fit into
-the current sub-buffer, because there's no room left for it, the
-client is notified via the subbuf_start() callback that a switch to a
-new sub-buffer is about to occur.  The client uses this callback to 1)
-initialize the next sub-buffer if appropriate 2) finalize the previous
-sub-buffer if appropriate and 3) return a boolean value indicating
-whether or not to actually go ahead with the sub-buffer switch.
-
-To implement 'no-overwrite' mode, the userspace client would provide
-an implementation of the subbuf_start() callback something like the
-following:
-
-static int subbuf_start(struct rchan_buf *buf,
-                        void *subbuf,
-                        void *prev_subbuf,
-                        unsigned int prev_padding)
-{
-        if (prev_subbuf)
-                *((unsigned *)prev_subbuf) = prev_padding;
-
-        if (relay_buf_full(buf))
-                return 0;
-
-        subbuf_start_reserve(buf, sizeof(unsigned int));
-
-        return 1;
-}
-
-If the current buffer is full i.e. all sub-buffers remain unconsumed,
-the callback returns 0 to indicate that the buffer switch should not
-occur yet i.e. until the consumer has had a chance to read the current
-set of ready sub-buffers.  For the relay_buf_full() function to make
-sense, the consumer is reponsible for notifying relayfs when
-sub-buffers have been consumed via relay_subbufs_consumed().  Any
-subsequent attempts to write into the buffer will again invoke the
-subbuf_start() callback with the same parameters; only when the
-consumer has consumed one or more of the ready sub-buffers will
-relay_buf_full() return 0, in which case the buffer switch can
-continue.
-
-The implementation of the subbuf_start() callback for 'overwrite' mode
-would be very similar:
-
-static int subbuf_start(struct rchan_buf *buf,
-                        void *subbuf,
-                        void *prev_subbuf,
-                        unsigned int prev_padding)
-{
-        if (prev_subbuf)
-                *((unsigned *)prev_subbuf) = prev_padding;
-
-        subbuf_start_reserve(buf, sizeof(unsigned int));
-
-        return 1;
-}
-
-In this case, the relay_buf_full() check is meaningless and the
-callback always returns 1, causing the buffer switch to occur
-unconditionally.  It's also meaningless for the client to use the
-relay_subbufs_consumed() function in this mode, as it's never
-consulted.
-
-The default subbuf_start() implementation, used if the client doesn't
-define any callbacks, or doesn't define the subbuf_start() callback,
-implements the simplest possible 'no-overwrite' mode i.e. it does
-nothing but return 0.
-
-Header information can be reserved at the beginning of each sub-buffer
-by calling the subbuf_start_reserve() helper function from within the
-subbuf_start() callback.  This reserved area can be used to store
-whatever information the client wants.  In the example above, room is
-reserved in each sub-buffer to store the padding count for that
-sub-buffer.  This is filled in for the previous sub-buffer in the
-subbuf_start() implementation; the padding value for the previous
-sub-buffer is passed into the subbuf_start() callback along with a
-pointer to the previous sub-buffer, since the padding value isn't
-known until a sub-buffer is filled.  The subbuf_start() callback is
-also called for the first sub-buffer when the channel is opened, to
-give the client a chance to reserve space in it.  In this case the
-previous sub-buffer pointer passed into the callback will be NULL, so
-the client should check the value of the prev_subbuf pointer before
-writing into the previous sub-buffer.
-
-Writing to a channel
---------------------
-
-kernel clients write data into the current cpu's channel buffer using
-relay_write() or __relay_write().  relay_write() is the main logging
-function - it uses local_irqsave() to protect the buffer and should be
-used if you might be logging from interrupt context.  If you know
-you'll never be logging from interrupt context, you can use
-__relay_write(), which only disables preemption.  These functions
-don't return a value, so you can't determine whether or not they
-failed - the assumption is that you wouldn't want to check a return
-value in the fast logging path anyway, and that they'll always succeed
-unless the buffer is full and no-overwrite mode is being used, in
-which case you can detect a failed write in the subbuf_start()
-callback by calling the relay_buf_full() helper function.
-
-relay_reserve() is used to reserve a slot in a channel buffer which
-can be written to later.  This would typically be used in applications
-that need to write directly into a channel buffer without having to
-stage data in a temporary buffer beforehand.  Because the actual write
-may not happen immediately after the slot is reserved, applications
-using relay_reserve() can keep a count of the number of bytes actually
-written, either in space reserved in the sub-buffers themselves or as
-a separate array.  See the 'reserve' example in the relay-apps tarball
-at http://relayfs.sourceforge.net for an example of how this can be
-done.  Because the write is under control of the client and is
-separated from the reserve, relay_reserve() doesn't protect the buffer
-at all - it's up to the client to provide the appropriate
-synchronization when using relay_reserve().
-
-Closing a channel
------------------
-
-The client calls relay_close() when it's finished using the channel.
-The channel and its associated buffers are destroyed when there are no
-longer any references to any of the channel buffers.  relay_flush()
-forces a sub-buffer switch on all the channel buffers, and can be used
-to finalize and process the last sub-buffers before the channel is
-closed.
-
-Creating non-relay files
-------------------------
-
-relay_open() automatically creates files in the relayfs filesystem to
-represent the per-cpu kernel buffers; it's often useful for
-applications to be able to create their own files alongside the relay
-files in the relayfs filesystem as well e.g. 'control' files much like
-those created in /proc or debugfs for similar purposes, used to
-communicate control information between the kernel and user sides of a
-relayfs application.  For this purpose the relayfs_create_file() and
-relayfs_remove_file() API functions exist.  For relayfs_create_file(),
-the caller passes in a set of user-defined file operations to be used
-for the file and an optional void * to a user-specified data item,
-which will be accessible via inode->u.generic_ip (see the relay-apps
-tarball for examples).  The file_operations are a required parameter
-to relayfs_create_file() and thus the semantics of these files are
-completely defined by the caller.
-
-See the relay-apps tarball at http://relayfs.sourceforge.net for
-examples of how these non-relay files are meant to be used.
-
-Creating relay files in other filesystems
------------------------------------------
-
-By default of course, relay_open() creates relay files in the relayfs
-filesystem.  Because relay_file_operations is exported, however, it's
-also possible to create and use relay files in other pseudo-filesytems
-such as debugfs.
-
-For this purpose, two callback functions are provided,
-create_buf_file() and remove_buf_file().  create_buf_file() is called
-once for each per-cpu buffer from relay_open() to allow the client to
-create a file to be used to represent the corresponding buffer; if
-this callback is not defined, the default implementation will create
-and return a file in the relayfs filesystem to represent the buffer.
-The callback should return the dentry of the file created to represent
-the relay buffer.  Note that the parent directory passed to
-relay_open() (and passed along to the callback), if specified, must
-exist in the same filesystem the new relay file is created in.  If
-create_buf_file() is defined, remove_buf_file() must also be defined;
-it's responsible for deleting the file(s) created in create_buf_file()
-and is called during relay_close().
-
-The create_buf_file() implementation can also be defined in such a way
-as to allow the creation of a single 'global' buffer instead of the
-default per-cpu set.  This can be useful for applications interested
-mainly in seeing the relative ordering of system-wide events without
-the need to bother with saving explicit timestamps for the purpose of
-merging/sorting per-cpu files in a postprocessing step.
-
-To have relay_open() create a global buffer, the create_buf_file()
-implementation should set the value of the is_global outparam to a
-non-zero value in addition to creating the file that will be used to
-represent the single buffer.  In the case of a global buffer,
-create_buf_file() and remove_buf_file() will be called only once.  The
-normal channel-writing functions e.g. relay_write() can still be used
-- writes from any cpu will transparently end up in the global buffer -
-but since it is a global buffer, callers should make sure they use the
-proper locking for such a buffer, either by wrapping writes in a
-spinlock, or by copying a write function from relayfs_fs.h and
-creating a local version that internally does the proper locking.
-
-See the 'exported-relayfile' examples in the relay-apps tarball for
-examples of creating and using relay files in debugfs.
-
-Misc
-----
-
-Some applications may want to keep a channel around and re-use it
-rather than open and close a new channel for each use.  relay_reset()
-can be used for this purpose - it resets a channel to its initial
-state without reallocating channel buffer memory or destroying
-existing mappings.  It should however only be called when it's safe to
-do so i.e. when the channel isn't currently being written to.
-
-Finally, there are a couple of utility callbacks that can be used for
-different purposes.  buf_mapped() is called whenever a channel buffer
-is mmapped from user space and buf_unmapped() is called when it's
-unmapped.  The client can use this notification to trigger actions
-within the kernel application, such as enabling/disabling logging to
-the channel.
-
-
-Resources
-=========
-
-For news, example code, mailing list, etc. see the relayfs homepage:
-
-    http://relayfs.sourceforge.net
-
-
-Credits
-=======
-
-The ideas and specs for relayfs came about as a result of discussions
-on tracing involving the following:
-
-Michel Dagenais         <michel.dagenais@polymtl.ca>
-Richard Moore           <richardj_moore@uk.ibm.com>
-Bob Wisniewski          <bob@watson.ibm.com>
-Karim Yaghmour          <karim@opersys.com>
-Tom Zanussi             <zanussi@us.ibm.com>
-
-Also thanks to Hubertus Franke for a lot of useful suggestions and bug
-reports.
diff --git a/Documentation/input/joystick.txt b/Documentation/input/joystick.txt
index d53b857a3710..841c353297e6 100644
--- a/Documentation/input/joystick.txt
+++ b/Documentation/input/joystick.txt
@@ -39,7 +39,6 @@ them. Bug reports and success stories are also welcome.
 
   The input project website is at:
 
-        http://www.suse.cz/development/input/
         http://atrey.karlin.mff.cuni.cz/~vojtech/input/
 
   There is also a mailing list for the driver at:
diff --git a/Documentation/scsi/ChangeLog.megaraid b/Documentation/scsi/ChangeLog.megaraid
index c173806c91fa..a056bbe67c7e 100644
--- a/Documentation/scsi/ChangeLog.megaraid
+++ b/Documentation/scsi/ChangeLog.megaraid
@@ -1,3 +1,126 @@
+Release Date    : Fri May 19 09:31:45 EST 2006 - Seokmann Ju <sju@lsil.com>
+Current Version : 2.20.4.9 (scsi module), 2.20.2.6 (cmm module)
+Older Version   : 2.20.4.8 (scsi module), 2.20.2.6 (cmm module)
+
+1.      Fixed a bug in megaraid_init_mbox().
+        Customer reported "garbage in file on x86_64 platform".
+        Root Cause: the driver registered controllers as 64-bit DMA capable
+        for those which are not support it.
+        Fix: Made change in the function inserting identification machanism
+        identifying 64-bit DMA capable controllers.
+
+        > -----Original Message-----
+        > From: Vasily Averin [mailto:vvs@sw.ru]
+        > Sent: Thursday, May 04, 2006 2:49 PM
+        > To: linux-scsi@vger.kernel.org; Kolli, Neela; Mukker, Atul;
+        > Ju, Seokmann; Bagalkote, Sreenivas;
+        > James.Bottomley@SteelEye.com; devel@openvz.org
+        > Subject: megaraid_mbox: garbage in file
+        >
+        > Hello all,
+        >
+        > I've investigated customers claim on the unstable work of
+        > their node and found a
+        > strange effect: reading from some files leads to the
+        >  "attempt to access beyond end of device" messages.
+        >
+        > I've checked filesystem, memory on the node, motherboard BIOS
+        > version, but it
+        > does not help and issue still has been reproduced by simple
+        > file reading.
+        >
+        > Reproducer is simple:
+        >
+        > echo 0xffffffff >/proc/sys/dev/scsi/logging_level ;
+        > cat /vz/private/101/root/etc/ld.so.cache >/tmp/ttt  ;
+        > echo 0 >/proc/sys/dev/scsi/logging
+        >
+        > It leads to the following messages in dmesg
+        >
+        > sd_init_command: disk=sda, block=871769260, count=26
+        > sda : block=871769260
+        > sda : reading 26/26 512 byte blocks.
+        > scsi_add_timer: scmd: f79ed980, time: 7500, (c02b1420)
+        > sd 0:1:0:0: send 0xf79ed980                  sd 0:1:0:0:
+        >         command: Read (10): 28 00 33 f6 24 ac 00 00 1a 00
+        > buffer = 0xf7cfb540, bufflen = 13312, done = 0xc0366b40,
+        > queuecommand 0xc0344010
+        > leaving scsi_dispatch_cmnd()
+        > scsi_delete_timer: scmd: f79ed980, rtn: 1
+        > sd 0:1:0:0: done 0xf79ed980 SUCCESS        0 sd 0:1:0:0:
+        >         command: Read (10): 28 00 33 f6 24 ac 00 00 1a 00
+        > scsi host busy 1 failed 0
+        > sd 0:1:0:0: Notifying upper driver of completion (result 0)
+        > sd_rw_intr: sda: res=0x0
+        > 26 sectors total, 13312 bytes done.
+        > use_sg is 4
+        > attempt to access beyond end of device
+        > sda6: rw=0, want=1044134458, limit=951401367
+        > Buffer I/O error on device sda6, logical block 522067228
+        > attempt to access beyond end of device
+
+2.      When INQUIRY with EVPD bit set issued to the MegaRAID controller,
+        system memory gets corrupted.
+        Root Cause: MegaRAID F/W handle the INQUIRY with EVPD bit set
+        incorrectly.
+        Fix: MegaRAID F/W has fixed the problem and being process of release,
+        soon. Meanwhile, driver will filter out the request.
+
+3.      One of member in the data structure of the driver leads unaligne
+        issue on 64-bit platform.
+        Customer reporeted "kernel unaligned access addrss" issue when
+        application communicates with MegaRAID HBA driver.
+        Root Cause: in uioc_t structure, one of member had misaligned and it
+        led system to display the error message.
+        Fix: A patch submitted to community from following folk.
+
+        > -----Original Message-----
+        > From: linux-scsi-owner@vger.kernel.org
+        > [mailto:linux-scsi-owner@vger.kernel.org] On Behalf Of Sakurai Hiroomi
+        > Sent: Wednesday, July 12, 2006 4:20 AM
+        > To: linux-scsi@vger.kernel.org; linux-kernel@vger.kernel.org
+        > Subject: Re: Help: strange messages from kernel on IA64 platform
+        >
+        > Hi,
+        >
+        > I saw same message.
+        >
+        > When GAM(Global Array Manager) is started, The following
+        > message output.
+        > kernel: kernel unaligned access to 0xe0000001fe1080d4,
+        > ip=0xa000000200053371
+        >
+        > The uioc structure used by ioctl is defined by packed,
+        > the allignment of each member are disturbed.
+        > In a 64 bit structure, the allignment of member doesn't fit 64 bit
+        > boundary. this causes this messages.
+        > In a 32 bit structure, we don't see the message because the allinment
+        > of member fit 32 bit boundary even if packed is specified.
+        >
+        > patch
+        > I Add 32 bit dummy member to fit 64 bit boundary. I tested.
+        > We confirmed this patch fix the problem by IA64 server.
+        >
+        > **************************************************************
+        > ****************
+        > --- linux-2.6.9/drivers/scsi/megaraid/megaraid_ioctl.h.orig
+        > 2006-04-03 17:13:03.000000000 +0900
+        > +++ linux-2.6.9/drivers/scsi/megaraid/megaraid_ioctl.h
+        > 2006-04-03 17:14:09.000000000 +0900
+        > @@ -132,6 +132,10 @@
+        >  /* Driver Data: */
+        >          void __user *           user_data;
+        >          uint32_t                user_data_len;
+        > +
+        > +        /* 64bit alignment */
+        > +        uint32_t                pad_0xBC;
+        > +
+        >          mraid_passthru_t        __user *user_pthru;
+        >
+        >          mraid_passthru_t        *pthru32;
+        > **************************************************************
+        > ****************
+
 Release Date    : Mon Apr 11 12:27:22 EST 2006 - Seokmann Ju <sju@lsil.com>
 Current Version : 2.20.4.8 (scsi module), 2.20.2.6 (cmm module)
 Older Version   : 2.20.4.7 (scsi module), 2.20.2.6 (cmm module)
diff --git a/Documentation/sysctl/fs.txt b/Documentation/sysctl/fs.txt
index 0b62c62142cf..5c3a51905969 100644
--- a/Documentation/sysctl/fs.txt
+++ b/Documentation/sysctl/fs.txt
@@ -25,6 +25,7 @@ Currently, these files are in /proc/sys/fs:
 - inode-state
 - overflowuid
 - overflowgid
+- suid_dumpable
 - super-max
 - super-nr
 
@@ -131,6 +132,25 @@ The default is 65534.
 
 ==============================================================
 
+suid_dumpable:
+
+This value can be used to query and set the core dump mode for setuid
+or otherwise protected/tainted binaries. The modes are
+
+0 - (default) - traditional behaviour. Any process which has changed
+        privilege levels or is execute only will not be dumped
+1 - (debug) - all processes dump core when possible. The core dump is
+        owned by the current user and no security is applied. This is
+        intended for system debugging situations only. Ptrace is unchecked.
+2 - (suidsafe) - any binary which normally would not be dumped is dumped
+        readable by root only. This allows the end user to remove
+        such a dump but not access it directly. For security reasons
+        core dumps in this mode will not overwrite one another or
+        other files. This mode is appropriate when adminstrators are
+        attempting to debug problems in a normal environment.
+
+==============================================================
+
 super-max & super-nr:
 
 These numbers control the maximum number of superblocks, and
diff --git a/Documentation/sysctl/kernel.txt b/Documentation/sysctl/kernel.txt
index 7345c338080a..89bf8c20a586 100644
--- a/Documentation/sysctl/kernel.txt
+++ b/Documentation/sysctl/kernel.txt
@@ -50,7 +50,6 @@ show up in /proc/sys/kernel:
 - shmmax                      [ sysv ipc ]
 - shmmni
 - stop-a                      [ SPARC only ]
-- suid_dumpable
 - sysrq                       ==> Documentation/sysrq.txt
 - tainted
 - threads-max
@@ -310,25 +309,6 @@ kernel.  This value defaults to SHMMAX.
 
 ==============================================================
 
-suid_dumpable:
-
-This value can be used to query and set the core dump mode for setuid
-or otherwise protected/tainted binaries. The modes are
-
-0 - (default) - traditional behaviour. Any process which has changed
-        privilege levels or is execute only will not be dumped
-1 - (debug) - all processes dump core when possible. The core dump is
-        owned by the current user and no security is applied. This is
-        intended for system debugging situations only. Ptrace is unchecked.
-2 - (suidsafe) - any binary which normally would not be dumped is dumped
-        readable by root only. This allows the end user to remove
-        such a dump but not access it directly. For security reasons
-        core dumps in this mode will not overwrite one another or
-        other files. This mode is appropriate when adminstrators are
-        attempting to debug problems in a normal environment.
-
-==============================================================
-
 tainted: 
 
 Non-zero if the kernel has been tainted.  Numeric values, which
diff --git a/MAINTAINERS b/MAINTAINERS
index d3315a552be1..3bbd7064f947 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -889,6 +889,12 @@ M:	rdunlap@xenotime.net
 T:      git http://tali.admingilde.org/git/linux-docbook.git
 S:      Maintained
 
+DOCKING STATION DRIVER
+P:      Kristen Carlson Accardi
+M:      kristen.c.accardi@intel.com
+L:      linux-acpi@vger.kernel.org
+S:      Maintained
+
 DOUBLETALK DRIVER
 P:      James R. Van Zandt
 M:      jrv@vanzandt.mv.com
diff --git a/Makefile b/Makefile
index 8406d02c6385..33559b566449 100644
--- a/Makefile
+++ b/Makefile
@@ -1,7 +1,7 @@
 VERSION = 2
 PATCHLEVEL = 6
 SUBLEVEL = 18
-EXTRAVERSION = -rc4
+EXTRAVERSION = -rc5
 NAME=Crazed Snow-Weasel
 
 # *DOCUMENTATION*
diff --git a/arch/arm/common/dmabounce.c b/arch/arm/common/dmabounce.c
index 5b7c26395b44..028bdc9228fb 100644
--- a/arch/arm/common/dmabounce.c
+++ b/arch/arm/common/dmabounce.c
@@ -179,17 +179,19 @@ alloc_safe_buffer(struct dmabounce_device_info *device_info, void *ptr,
 static inline struct safe_buffer *
 find_safe_buffer(struct dmabounce_device_info *device_info, dma_addr_t safe_dma_addr)
 {
-        struct safe_buffer *b = NULL;
+        struct safe_buffer *b, *rb = NULL;
         unsigned long flags;
 
         read_lock_irqsave(&device_info->lock, flags);
 
         list_for_each_entry(b, &device_info->safe_buffers, node)
-                if (b->safe_dma_addr == safe_dma_addr)
+                if (b->safe_dma_addr == safe_dma_addr) {
+                        rb = b;
                         break;
+                }
 
         read_unlock_irqrestore(&device_info->lock, flags);
-        return b;
+        return rb;
 }
 
 static inline void
diff --git a/arch/arm/kernel/entry-armv.S b/arch/arm/kernel/entry-armv.S
index 7ea5f01dfc7b..de4e33137901 100644
--- a/arch/arm/kernel/entry-armv.S
+++ b/arch/arm/kernel/entry-armv.S
@@ -634,6 +634,14 @@ ENTRY(__switch_to)
  * purpose.
  */
 
+        .macro  usr_ret, reg
+#ifdef CONFIG_ARM_THUMB
+        bx      \reg
+#else
+        mov     pc, \reg
+#endif
+        .endm
+
         .align  5
         .globl  __kuser_helper_start
 __kuser_helper_start:
@@ -675,7 +683,7 @@ __kuser_memory_barrier:				@ 0xffff0fa0
 #if __LINUX_ARM_ARCH__ >= 6 && defined(CONFIG_SMP)
         mcr     p15, 0, r0, c7, c10, 5  @ dmb
 #endif
-        mov     pc, lr
+        usr_ret lr
 
         .align  5
 
@@ -778,7 +786,7 @@ __kuser_cmpxchg:				@ 0xffff0fc0
         mov     r0, #-1
         adds    r0, r0, #0
 #endif
-        mov     pc, lr
+        usr_ret lr
 
 #else
 
@@ -792,7 +800,7 @@ __kuser_cmpxchg:				@ 0xffff0fc0
 #ifdef CONFIG_SMP
         mcr     p15, 0, r0, c7, c10, 5  @ dmb
 #endif
-        mov     pc, lr
+        usr_ret lr
 
 #endif
 
@@ -834,16 +842,11 @@ __kuser_cmpxchg:				@ 0xffff0fc0
 __kuser_get_tls:                                @ 0xffff0fe0
 
 #if !defined(CONFIG_HAS_TLS_REG) && !defined(CONFIG_TLS_REG_EMUL)
-
         ldr     r0, [pc, #(16 - 8)]             @ TLS stored at 0xffff0ff0
-        mov     pc, lr
-
 #else
-
         mrc     p15, 0, r0, c13, c0, 3          @ read TLS register
-        mov     pc, lr
-
 #endif
+        usr_ret lr
 
         .rep    5
         .word   0                       @ pad up to __kuser_helper_version
diff --git a/arch/arm/kernel/head.S b/arch/arm/kernel/head.S
index 4fe386eea4b4..5365d4e5949e 100644
--- a/arch/arm/kernel/head.S
+++ b/arch/arm/kernel/head.S
@@ -118,7 +118,7 @@ ENTRY(secondary_startup)
         sub     r4, r4, r5                      @ mmu has been enabled
         ldr     r4, [r7, r4]                    @ get secondary_data.pgdir
         adr     lr, __enable_mmu                @ return address
-        add     pc, r10, #12                    @ initialise processor
+        add     pc, r10, #PROCINFO_INITFUNC     @ initialise processor
                                                 @ (return control reg)
 
         /*
diff --git a/arch/arm/mach-s3c2410/Makefile b/arch/arm/mach-s3c2410/Makefile
index 0c7938645df6..273e05f2b8de 100644
--- a/arch/arm/mach-s3c2410/Makefile
+++ b/arch/arm/mach-s3c2410/Makefile
@@ -10,45 +10,47 @@ obj-m			:=
 obj-n                   :=
 obj-                    :=
 
+# DMA
+obj-$(CONFIG_S3C2410_DMA)       += dma.o
+
 # S3C2400 support files
-obj-$(CONFIG_CPU_S3C2400)  += s3c2400-gpio.o
+obj-$(CONFIG_CPU_S3C2400)       += s3c2400-gpio.o
 
 # S3C2410 support files
 
-obj-$(CONFIG_CPU_S3C2410)  += s3c2410.o
-obj-$(CONFIG_CPU_S3C2410)  += s3c2410-gpio.o
-obj-$(CONFIG_S3C2410_DMA)  += dma.o
+obj-$(CONFIG_CPU_S3C2410)       += s3c2410.o
+obj-$(CONFIG_CPU_S3C2410)       += s3c2410-gpio.o
 
 # Power Management support
 
-obj-$(CONFIG_PM)           += pm.o sleep.o
-obj-$(CONFIG_PM_SIMTEC)    += pm-simtec.o
+obj-$(CONFIG_PM)                += pm.o sleep.o
+obj-$(CONFIG_PM_SIMTEC)         += pm-simtec.o
 
 # S3C2412 support
-obj-$(CONFIG_CPU_S3C2412)  += s3c2412.o
-obj-$(CONFIG_CPU_S3C2412)  += s3c2412-clock.o
+obj-$(CONFIG_CPU_S3C2412)       += s3c2412.o
+obj-$(CONFIG_CPU_S3C2412)       += s3c2412-clock.o
 
 #
 # S3C244X support
 
-obj-$(CONFIG_CPU_S3C244X)  += s3c244x.o
-obj-$(CONFIG_CPU_S3C244X)  += s3c244x-irq.o
+obj-$(CONFIG_CPU_S3C244X)       += s3c244x.o
+obj-$(CONFIG_CPU_S3C244X)       += s3c244x-irq.o
 
 # Clock control
 
-obj-$(CONFIG_S3C2410_CLOCK) += s3c2410-clock.o
+obj-$(CONFIG_S3C2410_CLOCK)     += s3c2410-clock.o
 
 # S3C2440 support
 
-obj-$(CONFIG_CPU_S3C2440)  += s3c2440.o s3c2440-dsc.o
-obj-$(CONFIG_CPU_S3C2440)  += s3c2440-irq.o
-obj-$(CONFIG_CPU_S3C2440)  += s3c2440-clock.o
-obj-$(CONFIG_CPU_S3C2440)  += s3c2410-gpio.o
+obj-$(CONFIG_CPU_S3C2440)       += s3c2440.o s3c2440-dsc.o
+obj-$(CONFIG_CPU_S3C2440)       += s3c2440-irq.o
+obj-$(CONFIG_CPU_S3C2440)       += s3c2440-clock.o
+obj-$(CONFIG_CPU_S3C2440)       += s3c2410-gpio.o
 
 # S3C2442 support
 
-obj-$(CONFIG_CPU_S3C2442)  += s3c2442.o
-obj-$(CONFIG_CPU_S3C2442)  += s3c2442-clock.o
+obj-$(CONFIG_CPU_S3C2442)       += s3c2442.o
+obj-$(CONFIG_CPU_S3C2442)       += s3c2442-clock.o
 
 # bast extras
 
diff --git a/arch/arm/mach-s3c2410/dma.c b/arch/arm/mach-s3c2410/dma.c
index 094cc52745c5..25855452fe8c 100644
--- a/arch/arm/mach-s3c2410/dma.c
+++ b/arch/arm/mach-s3c2410/dma.c
@@ -112,7 +112,7 @@ dmadbg_capture(s3c2410_dma_chan_t *chan, struct s3c2410_dma_regstate *regs)
 }
 
 static void
-dmadbg_showregs(const char *fname, int line, s3c2410_dma_chan_t *chan,
+dmadbg_dumpregs(const char *fname, int line, s3c2410_dma_chan_t *chan,
                  struct s3c2410_dma_regstate *regs)
 {
         printk(KERN_DEBUG "dma%d: %s:%d: DCSRC=%08lx, DISRC=%08lx, DSTAT=%08lx DMT=%02lx, DCON=%08lx\n",
@@ -132,7 +132,16 @@ dmadbg_showchan(const char *fname, int line, s3c2410_dma_chan_t *chan)
                chan->number, fname, line, chan->load_state,
                chan->curr, chan->next, chan->end);
 
-        dmadbg_showregs(fname, line, chan, &state);
+        dmadbg_dumpregs(fname, line, chan, &state);
+}
+
+static void
+dmadbg_showregs(const char *fname, int line, s3c2410_dma_chan_t *chan)
+{
+        struct s3c2410_dma_regstate state;
+
+        dmadbg_capture(chan, &state);
+        dmadbg_dumpregs(fname, line, chan, &state);
 }
 
 #define dbg_showregs(chan) dmadbg_showregs(__FUNCTION__, __LINE__, (chan))
@@ -253,10 +262,14 @@ s3c2410_dma_loadbuffer(s3c2410_dma_chan_t *chan,
                          buf->next);
                 reload = (buf->next == NULL) ? S3C2410_DCON_NORELOAD : 0;
         } else {
-                pr_debug("load_state is %d => autoreload\n", chan->load_state);
+                //pr_debug("load_state is %d => autoreload\n", chan->load_state);
                 reload = S3C2410_DCON_AUTORELOAD;
         }
 
+        if ((buf->data & 0xf0000000) != 0x30000000) {
+                dmawarn("dmaload: buffer is %p\n", (void *)buf->data);
+        }
+
         writel(buf->data, chan->addr_reg);
 
         dma_wrreg(chan, S3C2410_DMA_DCON,
@@ -370,7 +383,7 @@ static int s3c2410_dma_start(s3c2410_dma_chan_t *chan)
         tmp |= S3C2410_DMASKTRIG_ON;
         dma_wrreg(chan, S3C2410_DMA_DMASKTRIG, tmp);
 
-        pr_debug("wrote %08lx to DMASKTRIG\n", tmp);
+        pr_debug("dma%d: %08lx to DMASKTRIG\n", chan->number, tmp);
 
 #if 0
         /* the dma buffer loads should take care of clearing the AUTO
@@ -384,7 +397,30 @@ static int s3c2410_dma_start(s3c2410_dma_chan_t *chan)
 
         dbg_showchan(chan);
 
+        /* if we've only loaded one buffer onto the channel, then chec
+         * to see if we have another, and if so, try and load it so when
+         * the first buffer is finished, the new one will be loaded onto
+         * the channel */
+
+        if (chan->next != NULL) {
+                if (chan->load_state == S3C2410_DMALOAD_1LOADED) {
+
+                        if (s3c2410_dma_waitforload(chan, __LINE__) == 0) {
+                                pr_debug("%s: buff not yet loaded, no more todo\n",
+                                         __FUNCTION__);
+                        } else {
+                                chan->load_state = S3C2410_DMALOAD_1RUNNING;
+                                s3c2410_dma_loadbuffer(chan, chan->next);
+                        }
+
+                } else if (chan->load_state == S3C2410_DMALOAD_1RUNNING) {
+                        s3c2410_dma_loadbuffer(chan, chan->next);
+                }
+        }
+
+
         local_irq_restore(flags);
+
         return 0;
 }
 
@@ -436,12 +472,11 @@ int s3c2410_dma_enqueue(unsigned int channel, void *id,
         buf = kmem_cache_alloc(dma_kmem, GFP_ATOMIC);
         if (buf == NULL) {
                 pr_debug("%s: out of memory (%ld alloc)\n",
-                         __FUNCTION__, sizeof(*buf));
+                         __FUNCTION__, (long)sizeof(*buf));
                 return -ENOMEM;
         }
 
-        pr_debug("%s: new buffer %p\n", __FUNCTION__, buf);
-
+        //pr_debug("%s: new buffer %p\n", __FUNCTION__, buf);
         //dbg_showchan(chan);
 
         buf->next  = NULL;
@@ -537,14 +572,20 @@ s3c2410_dma_lastxfer(s3c2410_dma_chan_t *chan)
         case S3C2410_DMALOAD_1LOADED:
                 if (s3c2410_dma_waitforload(chan, __LINE__) == 0) {
                                 /* flag error? */
-                        printk(KERN_ERR "dma%d: timeout waiting for load\n",
-                               chan->number);
+                        printk(KERN_ERR "dma%d: timeout waiting for load (%s)\n",
+                               chan->number, __FUNCTION__);
                         return;
                 }
                 break;
 
+        case S3C2410_DMALOAD_1LOADED_1RUNNING:
+                /* I belive in this case we do not have anything to do
+                 * until the next buffer comes along, and we turn off the
+                 * reload */
+                return;
+
         default:
-                pr_debug("dma%d: lastxfer: unhandled load_state %d with no next",
+                pr_debug("dma%d: lastxfer: unhandled load_state %d with no next\n",
                          chan->number, chan->load_state);
                 return;
 
@@ -629,7 +670,14 @@ s3c2410_dma_irq(int irq, void *devpw, struct pt_regs *regs)
         } else {
         }
 
-        if (chan->next != NULL) {
+        /* only reload if the channel is still running... our buffer done
+         * routine may have altered the state by requesting the dma channel
+         * to stop or shutdown... */
+
+        /* todo: check that when the channel is shut-down from inside this
+         * function, we cope with unsetting reload, etc */
+
+        if (chan->next != NULL && chan->state != S3C2410_DMA_IDLE) {
                 unsigned long flags;
 
                 switch (chan->load_state) {
@@ -644,8 +692,8 @@ s3c2410_dma_irq(int irq, void *devpw, struct pt_regs *regs)
                 case S3C2410_DMALOAD_1LOADED:
                         if (s3c2410_dma_waitforload(chan, __LINE__) == 0) {
                                 /* flag error? */
-                                printk(KERN_ERR "dma%d: timeout waiting for load\n",
-                                       chan->number);
+                                printk(KERN_ERR "dma%d: timeout waiting for load (%s)\n",
+                                       chan->number, __FUNCTION__);
                                 return IRQ_HANDLED;
                         }
 
@@ -678,8 +726,6 @@ s3c2410_dma_irq(int irq, void *devpw, struct pt_regs *regs)
         return IRQ_HANDLED;
 }
 
-
-
 /* s3c2410_request_dma
  *
  * get control of an dma channel
@@ -718,11 +764,17 @@ int s3c2410_dma_request(unsigned int channel, s3c2410_dma_client_t *client,
                 pr_debug("dma%d: %s : requesting irq %d\n",
                          channel, __FUNCTION__, chan->irq);
 
+                chan->irq_claimed = 1;
+                local_irq_restore(flags);
+
                 err = request_irq(chan->irq, s3c2410_dma_irq, IRQF_DISABLED,
                                   client->name, (void *)chan);
 
+                local_irq_save(flags);
+
                 if (err) {
                         chan->in_use = 0;
+                        chan->irq_claimed = 0;
                         local_irq_restore(flags);
 
                         printk(KERN_ERR "%s: cannot get IRQ %d for DMA %d\n",
@@ -730,7 +782,6 @@ int s3c2410_dma_request(unsigned int channel, s3c2410_dma_client_t *client,
                         return err;
                 }
 
-                chan->irq_claimed = 1;
                 chan->irq_enabled = 1;
         }
 
@@ -810,6 +861,7 @@ static int s3c2410_dma_dostop(s3c2410_dma_chan_t *chan)
 
         tmp = dma_rdreg(chan, S3C2410_DMA_DMASKTRIG);
         tmp |= S3C2410_DMASKTRIG_STOP;
+        //tmp &= ~S3C2410_DMASKTRIG_ON;
         dma_wrreg(chan, S3C2410_DMA_DMASKTRIG, tmp);
 
 #if 0
@@ -819,6 +871,7 @@ static int s3c2410_dma_dostop(s3c2410_dma_chan_t *chan)
         dma_wrreg(chan, S3C2410_DMA_DCON, tmp);
 #endif
 
+        /* should stop do this, or should we wait for flush? */
         chan->state      = S3C2410_DMA_IDLE;
         chan->load_state = S3C2410_DMALOAD_NONE;
 
@@ -827,6 +880,22 @@ static int s3c2410_dma_dostop(s3c2410_dma_chan_t *chan)
         return 0;
 }
 
+void s3c2410_dma_waitforstop(s3c2410_dma_chan_t *chan)
+{
+        unsigned long tmp;
+        unsigned int timeout = 0x10000;
+
+        while (timeout-- > 0) {
+                tmp = dma_rdreg(chan, S3C2410_DMA_DMASKTRIG);
+
+                if (!(tmp & S3C2410_DMASKTRIG_ON))
+                        return;
+        }
+
+        pr_debug("dma%d: failed to stop?\n", chan->number);
+}
+
+
 /* s3c2410_dma_flush
  *
  * stop the channel, and remove all current and pending transfers
@@ -837,7 +906,9 @@ static int s3c2410_dma_flush(s3c2410_dma_chan_t *chan)
         s3c2410_dma_buf_t *buf, *next;
         unsigned long flags;
 
-        pr_debug("%s:\n", __FUNCTION__);
+        pr_debug("%s: chan %p (%d)\n", __FUNCTION__, chan, chan->number);
+
+        dbg_showchan(chan);
 
         local_irq_save(flags);
 
@@ -864,11 +935,64 @@ static int s3c2410_dma_flush(s3c2410_dma_chan_t *chan)
                 }
         }
 
+        dbg_showregs(chan);
+
+        s3c2410_dma_waitforstop(chan);
+
+#if 0
+        /* should also clear interrupts, according to WinCE BSP */
+        {
+                unsigned long tmp;
+
+                tmp = dma_rdreg(chan, S3C2410_DMA_DCON);
+                tmp |= S3C2410_DCON_NORELOAD;
+                dma_wrreg(chan, S3C2410_DMA_DCON, tmp);
+        }
+#endif
+
+        dbg_showregs(chan);
+
         local_irq_restore(flags);
 
         return 0;
 }
 
+int
+s3c2410_dma_started(s3c2410_dma_chan_t *chan)
+{
+        unsigned long flags;
+
+        local_irq_save(flags);
+
+        dbg_showchan(chan);
+
+        /* if we've only loaded one buffer onto the channel, then chec
+         * to see if we have another, and if so, try and load it so when
+         * the first buffer is finished, the new one will be loaded onto
+         * the channel */
+
+        if (chan->next != NULL) {
+                if (chan->load_state == S3C2410_DMALOAD_1LOADED) {
+
+                        if (s3c2410_dma_waitforload(chan, __LINE__) == 0) {
+                                pr_debug("%s: buff not yet loaded, no more todo\n",
+                                         __FUNCTION__);
+                        } else {
+                                chan->load_state = S3C2410_DMALOAD_1RUNNING;
+                                s3c2410_dma_loadbuffer(chan, chan->next);
+                        }
+
+                } else if (chan->load_state == S3C2410_DMALOAD_1RUNNING) {
+                        s3c2410_dma_loadbuffer(chan, chan->next);
+                }
+        }
+
+
+        local_irq_restore(flags);
+
+        return 0;
+
+}
 
 int
 s3c2410_dma_ctrl(dmach_t channel, s3c2410_chan_op_t op)
@@ -885,14 +1009,15 @@ s3c2410_dma_ctrl(dmach_t channel, s3c2410_chan_op_t op)
                 return s3c2410_dma_dostop(chan);
 
         case S3C2410_DMAOP_PAUSE:
-                return -ENOENT;
-
         case S3C2410_DMAOP_RESUME:
                 return -ENOENT;
 
         case S3C2410_DMAOP_FLUSH:
                 return s3c2410_dma_flush(chan);
 
+        case S3C2410_DMAOP_STARTED:
+                return s3c2410_dma_started(chan);
+
         case S3C2410_DMAOP_TIMEOUT:
                 return 0;
 
diff --git a/arch/arm/mach-versatile/core.c b/arch/arm/mach-versatile/core.c
index c4e3f8c68479..f2bbef07b1e4 100644
--- a/arch/arm/mach-versatile/core.c
+++ b/arch/arm/mach-versatile/core.c
@@ -285,7 +285,7 @@ static struct flash_platform_data versatile_flash_data = {
 
 static struct resource versatile_flash_resource = {
         .start                  = VERSATILE_FLASH_BASE,
-        .end                    = VERSATILE_FLASH_BASE + VERSATILE_FLASH_SIZE,
+        .end                    = VERSATILE_FLASH_BASE + VERSATILE_FLASH_SIZE - 1,
         .flags                  = IORESOURCE_MEM,
 };
 
diff --git a/arch/i386/Kconfig b/arch/i386/Kconfig
index f71fb4a029cb..b2751eadbc56 100644
--- a/arch/i386/Kconfig
+++ b/arch/i386/Kconfig
@@ -142,6 +142,7 @@ config X86_SUMMIT
           In particular, it is needed for the x440.
 
           If you don't have one of these computers, you should say N here.
+          If you want to build a NUMA kernel, you must select ACPI.
 
 config X86_BIGSMP
         bool "Support for other sub-arch SMP systems with more than 8 CPUs"
@@ -169,6 +170,7 @@ config X86_GENERICARCH
        help
           This option compiles in the Summit, bigsmp, ES7000, default subarchitectures.
           It is intended for a generic binary kernel.
+          If you want a NUMA kernel, select ACPI.   We need SRAT for NUMA.
 
 config X86_ES7000
         bool "Support for Unisys ES7000 IA32 series"
@@ -542,7 +544,7 @@ config X86_PAE
 # Common NUMA Features
 config NUMA
         bool "Numa Memory Allocation and Scheduler Support"
-        depends on SMP && HIGHMEM64G && (X86_NUMAQ || X86_GENERICARCH || (X86_SUMMIT && ACPI))
+        depends on SMP && HIGHMEM64G && (X86_NUMAQ || (X86_SUMMIT || X86_GENERICARCH) && ACPI)
         default n if X86_PC
         default y if (X86_NUMAQ || X86_SUMMIT)
 
diff --git a/arch/i386/kernel/acpi/boot.c b/arch/i386/kernel/acpi/boot.c
index 0db6387025ca..ee003bc0e8b1 100644
--- a/arch/i386/kernel/acpi/boot.c
+++ b/arch/i386/kernel/acpi/boot.c
@@ -59,7 +59,7 @@ static inline int gsi_irq_sharing(int gsi) { return gsi; }
 
 #define BAD_MADT_ENTRY(entry, end) (                                        \
                 (!entry) || (unsigned long)entry + sizeof(*entry) > end ||  \
-                ((acpi_table_entry_header *)entry)->length != sizeof(*entry))
+                ((acpi_table_entry_header *)entry)->length < sizeof(*entry))
 
 #define PREFIX                  "ACPI: "
 
diff --git a/arch/i386/kernel/acpi/wakeup.S b/arch/i386/kernel/acpi/wakeup.S
index 9f408eee4e6f..b781b38131c0 100644
--- a/arch/i386/kernel/acpi/wakeup.S
+++ b/arch/i386/kernel/acpi/wakeup.S
@@ -292,7 +292,10 @@ ENTRY(do_suspend_lowlevel)
         pushl   $3
         call    acpi_enter_sleep_state
         addl    $4, %esp
-        ret
+
+#       In case of S3 failure, we'll emerge here.  Jump
+#       to ret_point to recover
+        jmp     ret_point
         .p2align 4,,7
 ret_point:
         call    restore_registers
diff --git a/arch/i386/kernel/cpu/cpufreq/acpi-cpufreq.c b/arch/i386/kernel/cpu/cpufreq/acpi-cpufreq.c
index efb41e81351c..e6ea00edcb54 100644
--- a/arch/i386/kernel/cpu/cpufreq/acpi-cpufreq.c
+++ b/arch/i386/kernel/cpu/cpufreq/acpi-cpufreq.c
@@ -567,16 +567,11 @@ static struct cpufreq_driver acpi_cpufreq_driver = {
 static int __init
 acpi_cpufreq_init (void)
 {
-        int                     result = 0;
-
         dprintk("acpi_cpufreq_init\n");
 
-        result = acpi_cpufreq_early_init_acpi();
+        acpi_cpufreq_early_init_acpi();
 
-        if (!result)
-                result = cpufreq_register_driver(&acpi_cpufreq_driver);
-        
-        return (result);
+        return cpufreq_register_driver(&acpi_cpufreq_driver);
 }
 
 
diff --git a/arch/i386/pci/init.c b/arch/i386/pci/init.c
index c7650a7e0b07..51087a9d9172 100644
--- a/arch/i386/pci/init.c
+++ b/arch/i386/pci/init.c
@@ -14,8 +14,12 @@ static __init int pci_access_init(void)
 #ifdef CONFIG_PCI_BIOS
         pci_pcbios_init();
 #endif
-        if (raw_pci_ops)
-                return 0;
+        /*
+         * don't check for raw_pci_ops here because we want pcbios as last
+         * fallback, yet it's needed to run first to set pcibios_last_bus
+         * in case legacy PCI probing is used. otherwise detecting peer busses
+         * fails.
+         */
 #ifdef CONFIG_PCI_DIRECT
         pci_direct_init();
 #endif
diff --git a/arch/i386/pci/mmconfig.c b/arch/i386/pci/mmconfig.c
index e545b0992c48..972180f738d9 100644
--- a/arch/i386/pci/mmconfig.c
+++ b/arch/i386/pci/mmconfig.c
@@ -178,7 +178,7 @@ static __init void unreachable_devices(void)
                                 pci_exp_set_dev_base(addr, k, PCI_DEVFN(i, 0));
                         if (addr == 0 ||
                             readl((u32 __iomem *)mmcfg_virt_addr) != val1) {
-                                set_bit(i, fallback_slots);
+                                set_bit(i + 32*k, fallback_slots);
                                 printk(KERN_NOTICE
                         "PCI: No mmconfig possible on %x:%x\n", k, i);
                         }
diff --git a/arch/ia64/hp/sim/simscsi.c b/arch/ia64/hp/sim/simscsi.c
index 8a4f0d0d17a3..8f0a16a79a67 100644
--- a/arch/ia64/hp/sim/simscsi.c
+++ b/arch/ia64/hp/sim/simscsi.c
@@ -244,7 +244,8 @@ static void simscsi_fillresult(struct scsi_cmnd *sc, char *buf, unsigned len)
 
         if (scatterlen == 0)
                 memcpy(sc->request_buffer, buf, len);
-        else for (slp = (struct scatterlist *)sc->request_buffer; scatterlen-- > 0 && len > 0; slp++) {
+        else for (slp = (struct scatterlist *)sc->request_buffer;
+                  scatterlen-- > 0 && len > 0; slp++) {
                 unsigned thislen = min(len, slp->length);
 
                 memcpy(page_address(slp->page) + slp->offset, buf, thislen);
diff --git a/arch/ia64/kernel/acpi.c b/arch/ia64/kernel/acpi.c
index 99761b81db44..0176556aeecc 100644
--- a/arch/ia64/kernel/acpi.c
+++ b/arch/ia64/kernel/acpi.c
@@ -55,7 +55,7 @@
 
 #define BAD_MADT_ENTRY(entry, end) (                                        \
                 (!entry) || (unsigned long)entry + sizeof(*entry) > end ||  \
-                ((acpi_table_entry_header *)entry)->length != sizeof(*entry))
+                ((acpi_table_entry_header *)entry)->length < sizeof(*entry))
 
 #define PREFIX                  "ACPI: "
 
diff --git a/arch/powerpc/boot/dts/mpc8540ads.dts b/arch/powerpc/boot/dts/mpc8540ads.dts
new file mode 100644
index 000000000000..5f41c1f7a5f3
--- /dev/null
+++ b/arch/powerpc/boot/dts/mpc8540ads.dts
@@ -0,0 +1,257 @@
+/*
+ * MPC8540 ADS Device Tree Source
+ *
+ * Copyright 2006 Freescale Semiconductor Inc.
+ *
+ * This program is free software; you can redistribute  it and/or modify it
+ * under  the terms of  the GNU General  Public License as published by the
+ * Free Software Foundation;  either version 2 of the  License, or (at your
+ * option) any later version.
+ */
+
+
+/ {
+        model = "MPC8540ADS";
+        compatible = "MPC85xxADS";
+        #address-cells = <1>;
+        #size-cells = <1>;
+        linux,phandle = <100>;
+
+        cpus {
+                #cpus = <1>;
+                #address-cells = <1>;
+                #size-cells = <0>;
+                linux,phandle = <200>;
+
+                PowerPC,8540@0 {
+                        device_type = "cpu";
+                        reg = <0>;
+                        d-cache-line-size = <20>;       // 32 bytes
+                        i-cache-line-size = <20>;       // 32 bytes
+                        d-cache-size = <8000>;          // L1, 32K
+                        i-cache-size = <8000>;          // L1, 32K
+                        timebase-frequency = <0>;       //  33 MHz, from uboot
+                        bus-frequency = <0>;    // 166 MHz
+                        clock-frequency = <0>;  // 825 MHz, from uboot
+                        32-bit;
+                        linux,phandle = <201>;
+                };
+        };
+
+        memory {
+                device_type = "memory";
+                linux,phandle = <300>;
+                reg = <00000000 08000000>;      // 128M at 0x0
+        };
+
+        soc8540@e0000000 {
+                #address-cells = <1>;
+                #size-cells = <1>;
+                #interrupt-cells = <2>;
+                device_type = "soc";
+                ranges = <0 e0000000 00100000>;
+                reg = <e0000000 00100000>;      // CCSRBAR 1M
+                bus-frequency = <0>;
+
+                i2c@3000 {
+                        device_type = "i2c";
+                        compatible = "fsl-i2c";
+                        reg = <3000 100>;
+                        interrupts = <1b 2>;
+                        interrupt-parent = <40000>;
+                        dfsrr;
+                };
+
+                mdio@24520 {
+                        #address-cells = <1>;
+                        #size-cells = <0>;
+                        device_type = "mdio";
+                        compatible = "gianfar";
+                        reg = <24520 20>;
+                        linux,phandle = <24520>;
+                        ethernet-phy@0 {
+                                linux,phandle = <2452000>;
+                                interrupt-parent = <40000>;
+                                interrupts = <35 1>;
+                                reg = <0>;
+                                device_type = "ethernet-phy";
+                        };
+                        ethernet-phy@1 {
+                                linux,phandle = <2452001>;
+                                interrupt-parent = <40000>;
+                                interrupts = <35 1>;
+                                reg = <1>;
+                                device_type = "ethernet-phy";
+                        };
+                        ethernet-phy@3 {
+                                linux,phandle = <2452003>;
+                                interrupt-parent = <40000>;
+                                interrupts = <37 1>;
+                                reg = <3>;
+                                device_type = "ethernet-phy";
+                        };
+                };
+
+                ethernet@24000 {
+                        #address-cells = <1>;
+                        #size-cells = <0>;
+                        device_type = "network";
+                        model = "TSEC";
+                        compatible = "gianfar";
+                        reg = <24000 1000>;
+                        address = [ 00 E0 0C 00 73 00 ];
+                        local-mac-address = [ 00 E0 0C 00 73 00 ];
+                        interrupts = <d 2 e 2 12 2>;
+                        interrupt-parent = <40000>;
+                        phy-handle = <2452000>;
+                };
+
+                ethernet@25000 {
+                        #address-cells = <1>;
+                        #size-cells = <0>;
+                        device_type = "network";
+                        model = "TSEC";
+                        compatible = "gianfar";
+                        reg = <25000 1000>;
+                        address = [ 00 E0 0C 00 73 01 ];
+                        local-mac-address = [ 00 E0 0C 00 73 01 ];
+                        interrupts = <13 2 14 2 18 2>;
+                        interrupt-parent = <40000>;
+                        phy-handle = <2452001>;
+                };
+
+                ethernet@26000 {
+                        #address-cells = <1>;
+                        #size-cells = <0>;
+                        device_type = "network";
+                        model = "FEC";
+                        compatible = "gianfar";
+                        reg = <26000 1000>;
+                        address = [ 00 E0 0C 00 73 02 ];
+                        local-mac-address = [ 00 E0 0C 00 73 02 ];
+                        interrupts = <19 2>;
+                        interrupt-parent = <40000>;
+                        phy-handle = <2452003>;
+                };
+
+                serial@4500 {
+                        device_type = "serial";
+                        compatible = "ns16550";
+                        reg = <4500 100>;       // reg base, size
+                        clock-frequency = <0>;  // should we fill in in uboot?
+                        interrupts = <1a 2>;
+                        interrupt-parent = <40000>;
+                };
+
+                serial@4600 {
+                        device_type = "serial";
+                        compatible = "ns16550";
+                        reg = <4600 100>;       // reg base, size
+                        clock-frequency = <0>;  // should we fill in in uboot?
+                        interrupts = <1a 2>;
+                        interrupt-parent = <40000>;
+                };
+                pci@8000 {
+                        linux,phandle = <8000>;
+                        interrupt-map-mask = <f800 0 0 7>;
+                        interrupt-map = <
+
+                                /* IDSEL 0x02 */
+                                1000 0 0 1 40000 31 1
+                                1000 0 0 2 40000 32 1
+                                1000 0 0 3 40000 33 1
+                                1000 0 0 4 40000 34 1
+
+                                /* IDSEL 0x03 */
+                                1800 0 0 1 40000 34 1
+                                1800 0 0 2 40000 31 1
+                                1800 0 0 3 40000 32 1
+                                1800 0 0 4 40000 33 1
+
+                                /* IDSEL 0x04 */
+                                2000 0 0 1 40000 33 1
+                                2000 0 0 2 40000 34 1
+                                2000 0 0 3 40000 31 1
+                                2000 0 0 4 40000 32 1
+
+                                /* IDSEL 0x05 */
+                                2800 0 0 1 40000 32 1
+                                2800 0 0 2 40000 33 1
+                                2800 0 0 3 40000 34 1
+                                2800 0 0 4 40000 31 1
+
+                                /* IDSEL 0x0c */
+                                6000 0 0 1 40000 31 1
+                                6000 0 0 2 40000 32 1
+                                6000 0 0 3 40000 33 1
+                                6000 0 0 4 40000 34 1
+
+                                /* IDSEL 0x0d */
+                                6800 0 0 1 40000 34 1
+                                6800 0 0 2 40000 31 1
+                                6800 0 0 3 40000 32 1
+                                6800 0 0 4 40000 33 1
+
+                                /* IDSEL 0x0e */
+                                7000 0 0 1 40000 33 1
+                                7000 0 0 2 40000 34 1
+                                7000 0 0 3 40000 31 1
+                                7000 0 0 4 40000 32 1
+
+                                /* IDSEL 0x0f */
+                                7800 0 0 1 40000 32 1
+                                7800 0 0 2 40000 33 1
+                                7800 0 0 3 40000 34 1
+                                7800 0 0 4 40000 31 1
+
+                                /* IDSEL 0x12 */
+                                9000 0 0 1 40000 31 1
+                                9000 0 0 2 40000 32 1
+                                9000 0 0 3 40000 33 1
+                                9000 0 0 4 40000 34 1
+
+                                /* IDSEL 0x13 */
+                                9800 0 0 1 40000 34 1
+                                9800 0 0 2 40000 31 1
+                                9800 0 0 3 40000 32 1
+                                9800 0 0 4 40000 33 1
+
+                                /* IDSEL 0x14 */
+                                a000 0 0 1 40000 33 1
+                                a000 0 0 2 40000 34 1
+                                a000 0 0 3 40000 31 1
+                                a000 0 0 4 40000 32 1
+
+                                /* IDSEL 0x15 */
+                                a800 0 0 1 40000 32 1
+                                a800 0 0 2 40000 33 1
+                                a800 0 0 3 40000 34 1
+                                a800 0 0 4 40000 31 1>;
+                        interrupt-parent = <40000>;
+                        interrupts = <08 2>;
+                        bus-range = <0 0>;
+                        ranges = <02000000 0 80000000 80000000 0 20000000
+                                  01000000 0 00000000 e2000000 0 00100000>;
+                        clock-frequency = <3f940aa>;
+                        #interrupt-cells = <1>;
+                        #size-cells = <2>;
+                        #address-cells = <3>;
+                        reg = <8000 1000>;
+                        compatible = "85xx";
+                        device_type = "pci";
+                };
+
+                pic@40000 {
+                        linux,phandle = <40000>;
+                        clock-frequency = <0>;
+                        interrupt-controller;
+                        #address-cells = <0>;
+                        #interrupt-cells = <2>;
+                        reg = <40000 40000>;
+                        built-in;
+                        compatible = "chrp,open-pic";
+                        device_type = "open-pic";
+                        big-endian;
+                };
+        };
+};
diff --git a/arch/powerpc/boot/dts/mpc8541cds.dts b/arch/powerpc/boot/dts/mpc8541cds.dts
new file mode 100644
index 000000000000..7be0bc659e1c
--- /dev/null
+++ b/arch/powerpc/boot/dts/mpc8541cds.dts
@@ -0,0 +1,244 @@
+/*
+ * MPC8541 CDS Device Tree Source
+ *
+ * Copyright 2006 Freescale Semiconductor Inc.
+ *
+ * This program is free software; you can redistribute  it and/or modify it
+ * under  the terms of  the GNU General  Public License as published by the
+ * Free Software Foundation;  either version 2 of the  License, or (at your
+ * option) any later version.
+ */
+
+
+/ {
+        model = "MPC8541CDS";
+        compatible = "MPC85xxCDS";
+        #address-cells = <1>;
+        #size-cells = <1>;
+        linux,phandle = <100>;
+
+        cpus {
+                #cpus = <1>;
+                #address-cells = <1>;
+                #size-cells = <0>;
+                linux,phandle = <200>;
+
+                PowerPC,8541@0 {
+                        device_type = "cpu";
+                        reg = <0>;
+                        d-cache-line-size = <20>;       // 32 bytes
+                        i-cache-line-size = <20>;       // 32 bytes
+                        d-cache-size = <8000>;          // L1, 32K
+                        i-cache-size = <8000>;          // L1, 32K
+                        timebase-frequency = <0>;       //  33 MHz, from uboot
+                        bus-frequency = <0>;    // 166 MHz
+                        clock-frequency = <0>;  // 825 MHz, from uboot
+                        32-bit;
+                        linux,phandle = <201>;
+                };
+        };
+
+        memory {
+                device_type = "memory";
+                linux,phandle = <300>;
+                reg = <00000000 08000000>;      // 128M at 0x0
+        };
+
+        soc8541@e0000000 {
+                #address-cells = <1>;
+                #size-cells = <1>;
+                #interrupt-cells = <2>;
+                device_type = "soc";
+                ranges = <0 e0000000 00100000>;
+                reg = <e0000000 00100000>;      // CCSRBAR 1M
+                bus-frequency = <0>;
+
+                i2c@3000 {
+                        device_type = "i2c";
+                        compatible = "fsl-i2c";
+                        reg = <3000 100>;
+                        interrupts = <1b 2>;
+                        interrupt-parent = <40000>;
+                        dfsrr;
+                };
+
+                mdio@24520 {
+                        #address-cells = <1>;
+                        #size-cells = <0>;
+                        device_type = "mdio";
+                        compatible = "gianfar";
+                        reg = <24520 20>;
+                        linux,phandle = <24520>;
+                        ethernet-phy@0 {
+                                linux,phandle = <2452000>;
+                                interrupt-parent = <40000>;
+                                interrupts = <35 0>;
+                                reg = <0>;
+                                device_type = "ethernet-phy";
+                        };
+                        ethernet-phy@1 {
+                                linux,phandle = <2452001>;
+                                interrupt-parent = <40000>;
+                                interrupts = <35 0>;
+                                reg = <1>;
+                                device_type = "ethernet-phy";
+                        };
+                };
+
+                ethernet@24000 {
+                        #address-cells = <1>;
+                        #size-cells = <0>;
+                        device_type = "network";
+                        model = "TSEC";
+                        compatible = "gianfar";
+                        reg = <24000 1000>;
+                        local-mac-address = [ 00 E0 0C 00 73 00 ];
+                        interrupts = <d 2 e 2 12 2>;
+                        interrupt-parent = <40000>;
+                        phy-handle = <2452000>;
+                };
+
+                ethernet@25000 {
+                        #address-cells = <1>;
+                        #size-cells = <0>;
+                        device_type = "network";
+                        model = "TSEC";
+                        compatible = "gianfar";
+                        reg = <25000 1000>;
+                        local-mac-address = [ 00 E0 0C 00 73 01 ];
+                        interrupts = <13 2 14 2 18 2>;
+                        interrupt-parent = <40000>;
+                        phy-handle = <2452001>;
+                };
+
+                serial@4500 {
+                        device_type = "serial";
+                        compatible = "ns16550";
+                        reg = <4500 100>;       // reg base, size
+                        clock-frequency = <0>;  // should we fill in in uboot?
+                        interrupts = <1a 2>;
+                        interrupt-parent = <40000>;
+                };
+
+                serial@4600 {
+                        device_type = "serial";
+                        compatible = "ns16550";
+                        reg = <4600 100>;       // reg base, size
+                        clock-frequency = <0>;  // should we fill in in uboot?
+                        interrupts = <1a 2>;
+                        interrupt-parent = <40000>;
+                };
+
+                pci@8000 {
+                        linux,phandle = <8000>;
+                        interrupt-map-mask = <1f800 0 0 7>;
+                        interrupt-map = <
+
+                                /* IDSEL 0x10 */
+                                08000 0 0 1 40000 30 1
+                                08000 0 0 2 40000 31 1
+                                08000 0 0 3 40000 32 1
+                                08000 0 0 4 40000 33 1
+
+                                /* IDSEL 0x11 */
+                                08800 0 0 1 40000 30 1
+                                08800 0 0 2 40000 31 1
+                                08800 0 0 3 40000 32 1
+                                08800 0 0 4 40000 33 1
+
+                                /* IDSEL 0x12 (Slot 1) */
+                                09000 0 0 1 40000 30 1
+                                09000 0 0 2 40000 31 1
+                                09000 0 0 3 40000 32 1
+                                09000 0 0 4 40000 33 1
+
+                                /* IDSEL 0x13 (Slot 2) */
+                                09800 0 0 1 40000 31 1
+                                09800 0 0 2 40000 32 1
+                                09800 0 0 3 40000 33 1
+                                09800 0 0 4 40000 30 1
+
+                                /* IDSEL 0x14 (Slot 3) */
+                                0a000 0 0 1 40000 32 1
+                                0a000 0 0 2 40000 33 1
+                                0a000 0 0 3 40000 30 1
+                                0a000 0 0 4 40000 31 1
+
+                                /* IDSEL 0x15 (Slot 4) */
+                                0a800 0 0 1 40000 33 1
+                                0a800 0 0 2 40000 30 1
+                                0a800 0 0 3 40000 31 1
+                                0a800 0 0 4 40000 32 1
+
+                                /* Bus 1 (Tundra Bridge) */
+                                /* IDSEL 0x12 (ISA bridge) */
+                                19000 0 0 1 40000 30 1
+                                19000 0 0 2 40000 31 1
+                                19000 0 0 3 40000 32 1
+                                19000 0 0 4 40000 33 1>;
+                        interrupt-parent = <40000>;
+                        interrupts = <08 2>;
+                        bus-range = <0 0>;
+                        ranges = <02000000 0 80000000 80000000 0 20000000
+                                  01000000 0 00000000 e2000000 0 00100000>;
+                        clock-frequency = <3f940aa>;
+                        #interrupt-cells = <1>;
+                        #size-cells = <2>;
+                        #address-cells = <3>;
+                        reg = <8000 1000>;
+                        compatible = "85xx";
+                        device_type = "pci";
+
+                        i8259@19000 {
+                                clock-frequency = <0>;
+                                interrupt-controller;
+                                device_type = "interrupt-controller";
+                                reg = <19000 0 0 0 1>;
+                                #address-cells = <0>;
+                                #interrupt-cells = <2>;
+                                built-in;
+                                compatible = "chrp,iic";
+                                big-endian;
+                                interrupts = <1>;
+                                interrupt-parent = <8000>;
+                        };
+                };
+
+                pci@9000 {
+                        linux,phandle = <9000>;
+                        interrupt-map-mask = <f800 0 0 7>;
+                        interrupt-map = <
+
+                                /* IDSEL 0x15 */
+                                a800 0 0 1 40000 3b 1
+                                a800 0 0 2 40000 3b 1
+                                a800 0 0 3 40000 3b 1
+                                a800 0 0 4 40000 3b 1>;
+                        interrupt-parent = <40000>;
+                        interrupts = <09 2>;
+                        bus-range = <0 0>;
+                        ranges = <02000000 0 a0000000 a0000000 0 20000000
+                                  01000000 0 00000000 e3000000 0 00100000>;
+                        clock-frequency = <3f940aa>;
+                        #interrupt-cells = <1>;
+                        #size-cells = <2>;
+                        #address-cells = <3>;
+                        reg = <9000 1000>;
+                        compatible = "85xx";
+                        device_type = "pci";
+                };
+
+                pic@40000 {
+                        linux,phandle = <40000>;
+                        clock-frequency = <0>;
+                        interrupt-controller;
+                        #address-cells = <0>;
+                        #interrupt-cells = <2>;
+                        reg = <40000 40000>;
+                        built-in;
+                        compatible = "chrp,open-pic";
+                        device_type = "open-pic";
+                        big-endian;
+                };
+        };
+};
diff --git a/arch/powerpc/boot/dts/mpc8548cds.dts b/arch/powerpc/boot/dts/mpc8548cds.dts
new file mode 100644
index 000000000000..893d7957c174
--- /dev/null
+++ b/arch/powerpc/boot/dts/mpc8548cds.dts
@@ -0,0 +1,287 @@
+/*
+ * MPC8555 CDS Device Tree Source
+ *
+ * Copyright 2006 Freescale Semiconductor Inc.
+ *
+ * This program is free software; you can redistribute  it and/or modify it
+ * under  the terms of  the GNU General  Public License as published by the
+ * Free Software Foundation;  either version 2 of the  License, or (at your
+ * option) any later version.
+ */
+
+
+/ {
+        model = "MPC8548CDS";
+        compatible = "MPC85xxCDS";
+        #address-cells = <1>;
+        #size-cells = <1>;
+        linux,phandle = <100>;
+
+        cpus {
+                #cpus = <1>;
+                #address-cells = <1>;
+                #size-cells = <0>;
+                linux,phandle = <200>;
+
+                PowerPC,8548@0 {
+                        device_type = "cpu";
+                        reg = <0>;
+                        d-cache-line-size = <20>;       // 32 bytes
+                        i-cache-line-size = <20>;       // 32 bytes
+                        d-cache-size = <8000>;          // L1, 32K
+                        i-cache-size = <8000>;          // L1, 32K
+                        timebase-frequency = <0>;       //  33 MHz, from uboot
+                        bus-frequency = <0>;    // 166 MHz
+                        clock-frequency = <0>;  // 825 MHz, from uboot
+                        32-bit;
+                        linux,phandle = <201>;
+                };
+        };
+
+        memory {
+                device_type = "memory";
+                linux,phandle = <300>;
+                reg = <00000000 08000000>;      // 128M at 0x0
+        };
+
+        soc8548@e0000000 {
+                #address-cells = <1>;
+                #size-cells = <1>;
+                #interrupt-cells = <2>;
+                device_type = "soc";
+                ranges = <0 e0000000 00100000>;
+                reg = <e0000000 00100000>;      // CCSRBAR 1M
+                bus-frequency = <0>;
+
+                i2c@3000 {
+                        device_type = "i2c";
+                        compatible = "fsl-i2c";
+                        reg = <3000 100>;
+                        interrupts = <1b 2>;
+                        interrupt-parent = <40000>;
+                        dfsrr;
+                };
+
+                mdio@24520 {
+                        #address-cells = <1>;
+                        #size-cells = <0>;
+                        device_type = "mdio";
+                        compatible = "gianfar";
+                        reg = <24520 20>;
+                        linux,phandle = <24520>;
+                        ethernet-phy@0 {
+                                linux,phandle = <2452000>;
+                                interrupt-parent = <40000>;
+                                interrupts = <35 0>;
+                                reg = <0>;
+                                device_type = "ethernet-phy";
+                        };
+                        ethernet-phy@1 {
+                                linux,phandle = <2452001>;
+                                interrupt-parent = <40000>;
+                                interrupts = <35 0>;
+                                reg = <1>;
+                                device_type = "ethernet-phy";
+                        };
+
+                        ethernet-phy@2 {
+                                linux,phandle = <2452002>;
+                                interrupt-parent = <40000>;
+                                interrupts = <35 0>;
+                                reg = <2>;
+                                device_type = "ethernet-phy";
+                        };
+                        ethernet-phy@3 {
+                                linux,phandle = <2452003>;
+                                interrupt-parent = <40000>;
+                                interrupts = <35 0>;
+                                reg = <3>;
+                                device_type = "ethernet-phy";
+                        };
+                };
+
+                ethernet@24000 {
+                        #address-cells = <1>;
+                        #size-cells = <0>;
+                        device_type = "network";
+                        model = "eTSEC";
+                        compatible = "gianfar";
+                        reg = <24000 1000>;
+                        local-mac-address = [ 00 E0 0C 00 73 00 ];
+                        interrupts = <d 2 e 2 12 2>;
+                        interrupt-parent = <40000>;
+                        phy-handle = <2452000>;
+                };
+
+                ethernet@25000 {
+                        #address-cells = <1>;
+                        #size-cells = <0>;
+                        device_type = "network";
+                        model = "eTSEC";
+                        compatible = "gianfar";
+                        reg = <25000 1000>;
+                        local-mac-address = [ 00 E0 0C 00 73 01 ];
+                        interrupts = <13 2 14 2 18 2>;
+                        interrupt-parent = <40000>;
+                        phy-handle = <2452001>;
+                };
+
+                ethernet@26000 {
+                        #address-cells = <1>;
+                        #size-cells = <0>;
+                        device_type = "network";
+                        model = "eTSEC";
+                        compatible = "gianfar";
+                        reg = <26000 1000>;
+                        local-mac-address = [ 00 E0 0C 00 73 02 ];
+                        interrupts = <f 2 10 2 11 2>;
+                        interrupt-parent = <40000>;
+                        phy-handle = <2452001>;
+                };
+
+/* eTSEC 4 is currently broken
+                ethernet@27000 {
+                        #address-cells = <1>;
+                        #size-cells = <0>;
+                        device_type = "network";
+                        model = "eTSEC";
+                        compatible = "gianfar";
+                        reg = <27000 1000>;
+                        local-mac-address = [ 00 E0 0C 00 73 03 ];
+                        interrupts = <15 2 16 2 17 2>;
+                        interrupt-parent = <40000>;
+                        phy-handle = <2452001>;
+                };
+ */
+
+                serial@4500 {
+                        device_type = "serial";
+                        compatible = "ns16550";
+                        reg = <4500 100>;       // reg base, size
+                        clock-frequency = <0>;  // should we fill in in uboot?
+                        interrupts = <1a 2>;
+                        interrupt-parent = <40000>;
+                };
+
+                serial@4600 {
+                        device_type = "serial";
+                        compatible = "ns16550";
+                        reg = <4600 100>;       // reg base, size
+                        clock-frequency = <0>;  // should we fill in in uboot?
+                        interrupts = <1a 2>;
+                        interrupt-parent = <40000>;
+                };
+
+                pci@8000 {
+                        linux,phandle = <8000>;
+                        interrupt-map-mask = <1f800 0 0 7>;
+                        interrupt-map = <
+
+                                /* IDSEL 0x10 */
+                                08000 0 0 1 40000 30 1
+                                08000 0 0 2 40000 31 1
+                                08000 0 0 3 40000 32 1
+                                08000 0 0 4 40000 33 1
+
+                                /* IDSEL 0x11 */
+                                08800 0 0 1 40000 30 1
+                                08800 0 0 2 40000 31 1
+                                08800 0 0 3 40000 32 1
+                                08800 0 0 4 40000 33 1
+
+                                /* IDSEL 0x12 (Slot 1) */
+                                09000 0 0 1 40000 30 1
+                                09000 0 0 2 40000 31 1
+                                09000 0 0 3 40000 32 1
+                                09000 0 0 4 40000 33 1
+
+                                /* IDSEL 0x13 (Slot 2) */
+                                09800 0 0 1 40000 31 1
+                                09800 0 0 2 40000 32 1
+                                09800 0 0 3 40000 33 1
+                                09800 0 0 4 40000 30 1
+
+                                /* IDSEL 0x14 (Slot 3) */
+                                0a000 0 0 1 40000 32 1
+                                0a000 0 0 2 40000 33 1
+                                0a000 0 0 3 40000 30 1
+                                0a000 0 0 4 40000 31 1
+
+                                /* IDSEL 0x15 (Slot 4) */
+                                0a800 0 0 1 40000 33 1
+                                0a800 0 0 2 40000 30 1
+                                0a800 0 0 3 40000 31 1
+                                0a800 0 0 4 40000 32 1
+
+                                /* Bus 1 (Tundra Bridge) */
+                                /* IDSEL 0x12 (ISA bridge) */
+                                19000 0 0 1 40000 30 1
+                                19000 0 0 2 40000 31 1
+                                19000 0 0 3 40000 32 1
+                                19000 0 0 4 40000 33 1>;
+                        interrupt-parent = <40000>;
+                        interrupts = <08 2>;
+                        bus-range = <0 0>;
+                        ranges = <02000000 0 80000000 80000000 0 20000000
+                                  01000000 0 00000000 e2000000 0 00100000>;
+                        clock-frequency = <3f940aa>;
+                        #interrupt-cells = <1>;
+                        #size-cells = <2>;
+                        #address-cells = <3>;
+                        reg = <8000 1000>;
+                        compatible = "85xx";
+                        device_type = "pci";
+
+                        i8259@19000 {
+                                clock-frequency = <0>;
+                                interrupt-controller;
+                                device_type = "interrupt-controller";
+                                reg = <19000 0 0 0 1>;
+                                #address-cells = <0>;
+                                #interrupt-cells = <2>;
+                                built-in;
+                                compatible = "chrp,iic";
+                                big-endian;
+                                interrupts = <1>;
+                                interrupt-parent = <8000>;
+                        };
+                };
+
+                pci@9000 {
+                        linux,phandle = <9000>;
+                        interrupt-map-mask = <f800 0 0 7>;
+                        interrupt-map = <
+
+                                /* IDSEL 0x15 */
+                                a800 0 0 1 40000 3b 1
+                                a800 0 0 2 40000 3b 1
+                                a800 0 0 3 40000 3b 1
+                                a800 0 0 4 40000 3b 1>;
+                        interrupt-parent = <40000>;
+                        interrupts = <09 2>;
+                        bus-range = <0 0>;
+                        ranges = <02000000 0 a0000000 a0000000 0 20000000
+                                  01000000 0 00000000 e3000000 0 00100000>;
+                        clock-frequency = <3f940aa>;
+                        #interrupt-cells = <1>;
+                        #size-cells = <2>;
+                        #address-cells = <3>;
+                        reg = <9000 1000>;
+                        compatible = "85xx";
+                        device_type = "pci";
+                };
+
+                pic@40000 {
+                        linux,phandle = <40000>;
+                        clock-frequency = <0>;
+                        interrupt-controller;
+                        #address-cells = <0>;
+                        #interrupt-cells = <2>;
+                        reg = <40000 40000>;
+                        built-in;
+                        compatible = "chrp,open-pic";
+                        device_type = "open-pic";
+                        big-endian;
+                };
+        };
+};
diff --git a/arch/powerpc/boot/dts/mpc8555cds.dts b/arch/powerpc/boot/dts/mpc8555cds.dts
new file mode 100644
index 000000000000..118f5a887651
--- /dev/null
+++ b/arch/powerpc/boot/dts/mpc8555cds.dts
@@ -0,0 +1,244 @@
+/*
+ * MPC8555 CDS Device Tree Source
+ *
+ * Copyright 2006 Freescale Semiconductor Inc.
+ *
+ * This program is free software; you can redistribute  it and/or modify it
+ * under  the terms of  the GNU General  Public License as published by the
+ * Free Software Foundation;  either version 2 of the  License, or (at your
+ * option) any later version.
+ */
+
+
+/ {
+        model = "MPC8555CDS";
+        compatible = "MPC85xxCDS";
+        #address-cells = <1>;
+        #size-cells = <1>;
+        linux,phandle = <100>;
+
+        cpus {
+                #cpus = <1>;
+                #address-cells = <1>;
+                #size-cells = <0>;
+                linux,phandle = <200>;
+
+                PowerPC,8555@0 {
+                        device_type = "cpu";
+                        reg = <0>;
+                        d-cache-line-size = <20>;       // 32 bytes
+                        i-cache-line-size = <20>;       // 32 bytes
+                        d-cache-size = <8000>;          // L1, 32K
+                        i-cache-size = <8000>;          // L1, 32K
+                        timebase-frequency = <0>;       //  33 MHz, from uboot
+                        bus-frequency = <0>;    // 166 MHz
+                        clock-frequency = <0>;  // 825 MHz, from uboot
+                        32-bit;
+                        linux,phandle = <201>;
+                };
+        };
+
+        memory {
+                device_type = "memory";
+                linux,phandle = <300>;
+                reg = <00000000 08000000>;      // 128M at 0x0
+        };
+
+        soc8555@e0000000 {
+                #address-cells = <1>;
+                #size-cells = <1>;
+                #interrupt-cells = <2>;
+                device_type = "soc";
+                ranges = <0 e0000000 00100000>;
+                reg = <e0000000 00100000>;      // CCSRBAR 1M
+                bus-frequency = <0>;
+
+                i2c@3000 {
+                        device_type = "i2c";
+                        compatible = "fsl-i2c";
+                        reg = <3000 100>;
+                        interrupts = <1b 2>;
+                        interrupt-parent = <40000>;
+                        dfsrr;
+                };
+
+                mdio@24520 {
+                        #address-cells = <1>;
+                        #size-cells = <0>;
+                        device_type = "mdio";
+                        compatible = "gianfar";
+                        reg = <24520 20>;
+                        linux,phandle = <24520>;
+                        ethernet-phy@0 {
+                                linux,phandle = <2452000>;
+                                interrupt-parent = <40000>;
+                                interrupts = <35 0>;
+                                reg = <0>;
+                                device_type = "ethernet-phy";
+                        };
+                        ethernet-phy@1 {
+                                linux,phandle = <2452001>;
+                                interrupt-parent = <40000>;
+                                interrupts = <35 0>;
+                                reg = <1>;
+                                device_type = "ethernet-phy";
+                        };
+                };
+
+                ethernet@24000 {
+                        #address-cells = <1>;
+                        #size-cells = <0>;
+                        device_type = "network";
+                        model = "TSEC";
+                        compatible = "gianfar";
+                        reg = <24000 1000>;
+                        local-mac-address = [ 00 E0 0C 00 73 00 ];
+                        interrupts = <0d 2 0e 2 12 2>;
+                        interrupt-parent = <40000>;
+                        phy-handle = <2452000>;
+                };
+
+                ethernet@25000 {
+                        #address-cells = <1>;
+                        #size-cells = <0>;
+                        device_type = "network";
+                        model = "TSEC";
+                        compatible = "gianfar";
+                        reg = <25000 1000>;
+                        local-mac-address = [ 00 E0 0C 00 73 01 ];
+                        interrupts = <13 2 14 2 18 2>;
+                        interrupt-parent = <40000>;
+                        phy-handle = <2452001>;
+                };
+
+                serial@4500 {
+                        device_type = "serial";
+                        compatible = "ns16550";
+                        reg = <4500 100>;       // reg base, size
+                        clock-frequency = <0>;  // should we fill in in uboot?
+                        interrupts = <1a 2>;
+                        interrupt-parent = <40000>;
+                };
+
+                serial@4600 {
+                        device_type = "serial";
+                        compatible = "ns16550";
+                        reg = <4600 100>;       // reg base, size
+                        clock-frequency = <0>;  // should we fill in in uboot?
+                        interrupts = <1a 2>;
+                        interrupt-parent = <40000>;
+                };
+
+                pci@8000 {
+                        linux,phandle = <8000>;
+                        interrupt-map-mask = <1f800 0 0 7>;
+                        interrupt-map = <
+
+                                /* IDSEL 0x10 */
+                                08000 0 0 1 40000 30 1
+                                08000 0 0 2 40000 31 1
+                                08000 0 0 3 40000 32 1
+                                08000 0 0 4 40000 33 1
+
+                                /* IDSEL 0x11 */
+                                08800 0 0 1 40000 30 1
+                                08800 0 0 2 40000 31 1
+                                08800 0 0 3 40000 32 1
+                                08800 0 0 4 40000 33 1
+
+                                /* IDSEL 0x12 (Slot 1) */
+                                09000 0 0 1 40000 30 1
+                                09000 0 0 2 40000 31 1
+                                09000 0 0 3 40000 32 1
+                                09000 0 0 4 40000 33 1
+
+                                /* IDSEL 0x13 (Slot 2) */
+                                09800 0 0 1 40000 31 1
+                                09800 0 0 2 40000 32 1
+                                09800 0 0 3 40000 33 1
+                                09800 0 0 4 40000 30 1
+
+                                /* IDSEL 0x14 (Slot 3) */
+                                0a000 0 0 1 40000 32 1
+                                0a000 0 0 2 40000 33 1
+                                0a000 0 0 3 40000 30 1
+                                0a000 0 0 4 40000 31 1
+
+                                /* IDSEL 0x15 (Slot 4) */
+                                0a800 0 0 1 40000 33 1
+                                0a800 0 0 2 40000 30 1
+                                0a800 0 0 3 40000 31 1
+                                0a800 0 0 4 40000 32 1
+
+                                /* Bus 1 (Tundra Bridge) */
+                                /* IDSEL 0x12 (ISA bridge) */
+                                19000 0 0 1 40000 30 1
+                                19000 0 0 2 40000 31 1
+                                19000 0 0 3 40000 32 1
+                                19000 0 0 4 40000 33 1>;
+                        interrupt-parent = <40000>;
+                        interrupts = <08 2>;
+                        bus-range = <0 0>;
+                        ranges = <02000000 0 80000000 80000000 0 20000000
+                                  01000000 0 00000000 e2000000 0 00100000>;
+                        clock-frequency = <3f940aa>;
+                        #interrupt-cells = <1>;
+                        #size-cells = <2>;
+                        #address-cells = <3>;
+                        reg = <8000 1000>;
+                        compatible = "85xx";
+                        device_type = "pci";
+
+                        i8259@19000 {
+                                clock-frequency = <0>;
+                                interrupt-controller;
+                                device_type = "interrupt-controller";
+                                reg = <19000 0 0 0 1>;
+                                #address-cells = <0>;
+                                #interrupt-cells = <2>;
+                                built-in;
+                                compatible = "chrp,iic";
+                                big-endian;
+                                interrupts = <1>;
+                                interrupt-parent = <8000>;
+                        };
+                };
+
+                pci@9000 {
+                        linux,phandle = <9000>;
+                        interrupt-map-mask = <f800 0 0 7>;
+                        interrupt-map = <
+
+                                /* IDSEL 0x15 */
+                                a800 0 0 1 40000 3b 1
+                                a800 0 0 2 40000 3b 1
+                                a800 0 0 3 40000 3b 1
+                                a800 0 0 4 40000 3b 1>;
+                        interrupt-parent = <40000>;
+                        interrupts = <09 2>;
+                        bus-range = <0 0>;
+                        ranges = <02000000 0 a0000000 a0000000 0 20000000
+                                  01000000 0 00000000 e3000000 0 00100000>;
+                        clock-frequency = <3f940aa>;
+                        #interrupt-cells = <1>;
+                        #size-cells = <2>;
+                        #address-cells = <3>;
+                        reg = <9000 1000>;
+                        compatible = "85xx";
+                        device_type = "pci";
+                };
+
+                pic@40000 {
+                        linux,phandle = <40000>;
+                        clock-frequency = <0>;
+                        interrupt-controller;
+                        #address-cells = <0>;
+                        #interrupt-cells = <2>;
+                        reg = <40000 40000>;
+                        built-in;
+                        compatible = "chrp,open-pic";
+                        device_type = "open-pic";
+                        big-endian;
+                };
+        };
+};
diff --git a/arch/powerpc/kernel/legacy_serial.c b/arch/powerpc/kernel/legacy_serial.c
index 359ab89748e0..40a39291861f 100644
--- a/arch/powerpc/kernel/legacy_serial.c
+++ b/arch/powerpc/kernel/legacy_serial.c
@@ -115,6 +115,7 @@ static int __init add_legacy_soc_port(struct device_node *np,
         u64 addr;
         u32 *addrp;
         upf_t flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST | UPF_SHARE_IRQ;
+        struct device_node *tsi = of_get_parent(np);
 
         /* We only support ports that have a clock frequency properly
          * encoded in the device-tree.
@@ -134,7 +135,10 @@ static int __init add_legacy_soc_port(struct device_node *np,
         /* Add port, irq will be dealt with later. We passed a translated
          * IO port value. It will be fixed up later along with the irq
          */
-        return add_legacy_port(np, -1, UPIO_MEM, addr, addr, NO_IRQ, flags, 0);
+        if (tsi && !strcmp(tsi->type, "tsi-bridge"))
+                return add_legacy_port(np, -1, UPIO_TSI, addr, addr, NO_IRQ, flags, 0);
+        else
+                return add_legacy_port(np, -1, UPIO_MEM, addr, addr, NO_IRQ, flags, 0);
 }
 
 static int __init add_legacy_isa_port(struct device_node *np,
@@ -464,7 +468,7 @@ static int __init serial_dev_init(void)
                         fixup_port_irq(i, np, port);
                 if (port->iotype == UPIO_PORT)
                         fixup_port_pio(i, np, port);
-                if (port->iotype == UPIO_MEM)
+                if ((port->iotype == UPIO_MEM) || (port->iotype == UPIO_TSI))
                         fixup_port_mmio(i, np, port);
         }
 
diff --git a/arch/powerpc/kernel/prom_parse.c b/arch/powerpc/kernel/prom_parse.c
index 6a7e997c401d..11052c212ad5 100644
--- a/arch/powerpc/kernel/prom_parse.c
+++ b/arch/powerpc/kernel/prom_parse.c
@@ -598,11 +598,6 @@ static struct device_node *of_irq_find_parent(struct device_node *child)
         return p;
 }
 
-static u8 of_irq_pci_swizzle(u8 slot, u8 pin)
-{
-        return (((pin - 1) + slot) % 4) + 1;
-}
-
 /* This doesn't need to be called if you don't have any special workaround
  * flags to pass
  */
@@ -891,6 +886,12 @@ int of_irq_map_one(struct device_node *device, int index, struct of_irq *out_irq
 }
 EXPORT_SYMBOL_GPL(of_irq_map_one);
 
+#ifdef CONFIG_PCI
+static u8 of_irq_pci_swizzle(u8 slot, u8 pin)
+{
+        return (((pin - 1) + slot) % 4) + 1;
+}
+
 int of_irq_map_pci(struct pci_dev *pdev, struct of_irq *out_irq)
 {
         struct device_node *dn, *ppnode;
@@ -967,4 +968,4 @@ int of_irq_map_pci(struct pci_dev *pdev, struct of_irq *out_irq)
         return of_irq_map_raw(ppnode, &lspec, laddr, out_irq);
 }
 EXPORT_SYMBOL_GPL(of_irq_map_pci);
-
+#endif /* CONFIG_PCI */
diff --git a/arch/powerpc/kernel/time.c b/arch/powerpc/kernel/time.c
index 774c0a3c5019..18e59e43d2b3 100644
--- a/arch/powerpc/kernel/time.c
+++ b/arch/powerpc/kernel/time.c
@@ -417,7 +417,7 @@ static __inline__ void timer_check_rtc(void)
 /*
  * This version of gettimeofday has microsecond resolution.
  */
-static inline void __do_gettimeofday(struct timeval *tv, u64 tb_val)
+static inline void __do_gettimeofday(struct timeval *tv)
 {
         unsigned long sec, usec;
         u64 tb_ticks, xsec;
@@ -431,7 +431,12 @@ static inline void __do_gettimeofday(struct timeval *tv, u64 tb_val)
          * without a divide (and in fact, without a multiply)
          */
         temp_varp = do_gtod.varp;
-        tb_ticks = tb_val - temp_varp->tb_orig_stamp;
+
+        /* Sampling the time base must be done after loading
+         * do_gtod.varp in order to avoid racing with update_gtod.
+         */
+        data_barrier(temp_varp);
+        tb_ticks = get_tb() - temp_varp->tb_orig_stamp;
         temp_tb_to_xs = temp_varp->tb_to_xs;
         temp_stamp_xsec = temp_varp->stamp_xsec;
         xsec = temp_stamp_xsec + mulhdu(tb_ticks, temp_tb_to_xs);
@@ -464,7 +469,7 @@ void do_gettimeofday(struct timeval *tv)
                 tv->tv_usec = usec;
                 return;
         }
-        __do_gettimeofday(tv, get_tb());
+        __do_gettimeofday(tv);
 }
 
 EXPORT_SYMBOL(do_gettimeofday);
@@ -650,6 +655,7 @@ void timer_interrupt(struct pt_regs * regs)
         int next_dec;
         int cpu = smp_processor_id();
         unsigned long ticks;
+        u64 tb_next_jiffy;
 
 #ifdef CONFIG_PPC32
         if (atomic_read(&ppc_n_lost_interrupts) != 0)
@@ -691,11 +697,14 @@ void timer_interrupt(struct pt_regs * regs)
                         continue;
 
                 write_seqlock(&xtime_lock);
-                tb_last_jiffy += tb_ticks_per_jiffy;
-                tb_last_stamp = per_cpu(last_jiffy, cpu);
-                do_timer(regs);
-                timer_recalc_offset(tb_last_jiffy);
-                timer_check_rtc();
+                tb_next_jiffy = tb_last_jiffy + tb_ticks_per_jiffy;
+                if (per_cpu(last_jiffy, cpu) >= tb_next_jiffy) {
+                        tb_last_jiffy = tb_next_jiffy;
+                        tb_last_stamp = per_cpu(last_jiffy, cpu);
+                        do_timer(regs);
+                        timer_recalc_offset(tb_last_jiffy);
+                        timer_check_rtc();
+                }
                 write_sequnlock(&xtime_lock);
         }
         
diff --git a/arch/powerpc/kernel/traps.c b/arch/powerpc/kernel/traps.c
index e4d1713e8aea..9b352bd0a460 100644
--- a/arch/powerpc/kernel/traps.c
+++ b/arch/powerpc/kernel/traps.c
@@ -585,14 +585,14 @@ static void parse_fpe(struct pt_regs *regs)
 #define INST_MFSPR_PVR_MASK     0xfc1fffff
 
 #define INST_DCBA               0x7c0005ec
-#define INST_DCBA_MASK          0x7c0007fe
+#define INST_DCBA_MASK          0xfc0007fe
 
 #define INST_MCRXR              0x7c000400
-#define INST_MCRXR_MASK         0x7c0007fe
+#define INST_MCRXR_MASK         0xfc0007fe
 
 #define INST_STRING             0x7c00042a
-#define INST_STRING_MASK        0x7c0007fe
-#define INST_STRING_GEN_MASK    0x7c00067e
+#define INST_STRING_MASK        0xfc0007fe
+#define INST_STRING_GEN_MASK    0xfc00067e
 #define INST_LSWI               0x7c0004aa
 #define INST_LSWX               0x7c00042a
 #define INST_STSWI              0x7c0005aa
diff --git a/arch/powerpc/mm/hugetlbpage.c b/arch/powerpc/mm/hugetlbpage.c
index 266b8b2ceac9..5615acc29527 100644
--- a/arch/powerpc/mm/hugetlbpage.c
+++ b/arch/powerpc/mm/hugetlbpage.c
@@ -153,7 +153,7 @@ static void free_hugepte_range(struct mmu_gather *tlb, hugepd_t *hpdp)
         hpdp->pd = 0;
         tlb->need_flush = 1;
         pgtable_free_tlb(tlb, pgtable_free_cache(hugepte, HUGEPTE_CACHE_NUM,
-                                                 HUGEPTE_TABLE_SIZE-1));
+                                                 PGF_CACHENUM_MASK));
 }
 
 #ifdef CONFIG_PPC_64K_PAGES
diff --git a/arch/powerpc/platforms/85xx/Kconfig b/arch/powerpc/platforms/85xx/Kconfig
index 454fc53289ab..c3268d9877e4 100644
--- a/arch/powerpc/platforms/85xx/Kconfig
+++ b/arch/powerpc/platforms/85xx/Kconfig
@@ -14,7 +14,6 @@ config MPC8540_ADS
 config MPC85xx_CDS
         bool "Freescale MPC85xx CDS"
         select DEFAULT_UIMAGE
-        select PPC_I8259 if PCI
         help
           This option enables support for the MPC85xx CDS board
 
diff --git a/arch/powerpc/platforms/85xx/mpc85xx_ads.c b/arch/powerpc/platforms/85xx/mpc85xx_ads.c
index 06a497676c99..9d2acfbbeccd 100644
--- a/arch/powerpc/platforms/85xx/mpc85xx_ads.c
+++ b/arch/powerpc/platforms/85xx/mpc85xx_ads.c
@@ -37,79 +37,7 @@ unsigned long isa_io_base = 0;
 unsigned long isa_mem_base = 0;
 #endif
 
-/*
- * Internal interrupts are all Level Sensitive, and Positive Polarity
- *
- * Note:  Likely, this table and the following function should be
- *        obtained and derived from the OF Device Tree.
- */
-static u_char mpc85xx_ads_openpic_initsenses[] __initdata = {
-        MPC85XX_INTERNAL_IRQ_SENSES,
-        0x0,                    /* External  0: */
-#if defined(CONFIG_PCI)
-        (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE),      /* Ext 1: PCI slot 0 */
-        (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE),      /* Ext 2: PCI slot 1 */
-        (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE),      /* Ext 3: PCI slot 2 */
-        (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE),      /* Ext 4: PCI slot 3 */
-#else
-        0x0,                    /* External  1: */
-        0x0,                    /* External  2: */
-        0x0,                    /* External  3: */
-        0x0,                    /* External  4: */
-#endif
-        (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE),      /* External 5: PHY */
-        0x0,                    /* External  6: */
-        (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE),      /* External 7: PHY */
-        0x0,                    /* External  8: */
-        0x0,                    /* External  9: */
-        0x0,                    /* External 10: */
-        0x0,                    /* External 11: */
-};
-
 #ifdef CONFIG_PCI
-/*
- * interrupt routing
- */
-
-int
-mpc85xx_map_irq(struct pci_dev *dev, unsigned char idsel, unsigned char pin)
-{
-        static char pci_irq_table[][4] =
-            /*
-             * This is little evil, but works around the fact
-             * that revA boards have IDSEL starting at 18
-             * and others boards (older) start at 12
-             *
-             *      PCI IDSEL/INTPIN->INTLINE
-             *       A      B      C      D
-             */
-        {
-                {PIRQA, PIRQB, PIRQC, PIRQD},   /* IDSEL 2 */
-                {PIRQD, PIRQA, PIRQB, PIRQC},
-                {PIRQC, PIRQD, PIRQA, PIRQB},
-                {PIRQB, PIRQC, PIRQD, PIRQA},   /* IDSEL 5 */
-                {0, 0, 0, 0},   /* -- */
-                {0, 0, 0, 0},   /* -- */
-                {0, 0, 0, 0},   /* -- */
-                {0, 0, 0, 0},   /* -- */
-                {0, 0, 0, 0},   /* -- */
-                {0, 0, 0, 0},   /* -- */
-                {PIRQA, PIRQB, PIRQC, PIRQD},   /* IDSEL 12 */
-                {PIRQD, PIRQA, PIRQB, PIRQC},
-                {PIRQC, PIRQD, PIRQA, PIRQB},
-                {PIRQB, PIRQC, PIRQD, PIRQA},   /* IDSEL 15 */
-                {0, 0, 0, 0},   /* -- */
-                {0, 0, 0, 0},   /* -- */
-                {PIRQA, PIRQB, PIRQC, PIRQD},   /* IDSEL 18 */
-                {PIRQD, PIRQA, PIRQB, PIRQC},
-                {PIRQC, PIRQD, PIRQA, PIRQB},
-                {PIRQB, PIRQC, PIRQD, PIRQA},   /* IDSEL 21 */
-        };
-
-        const long min_idsel = 2, max_idsel = 21, irqs_per_slot = 4;
-        return PCI_IRQ_TABLE_LOOKUP;
-}
-
 int
 mpc85xx_exclude_device(u_char bus, u_char devfn)
 {
@@ -119,44 +47,63 @@ mpc85xx_exclude_device(u_char bus, u_char devfn)
                 return PCIBIOS_SUCCESSFUL;
 }
 
+void __init
+mpc85xx_pcibios_fixup(void)
+{
+        struct pci_dev *dev = NULL;
+
+        for_each_pci_dev(dev)
+                pci_read_irq_line(dev);
+}
 #endif /* CONFIG_PCI */
 
 
 void __init mpc85xx_ads_pic_init(void)
 {
-        struct mpic *mpic1;
-        phys_addr_t OpenPIC_PAddr;
-
-        /* Determine the Physical Address of the OpenPIC regs */
-        OpenPIC_PAddr = get_immrbase() + MPC85xx_OPENPIC_OFFSET;
-
-        mpic1 = mpic_alloc(OpenPIC_PAddr,
-                           MPIC_PRIMARY | MPIC_WANTS_RESET | MPIC_BIG_ENDIAN,
-                           4, MPC85xx_OPENPIC_IRQ_OFFSET, 0, 250,
-                           mpc85xx_ads_openpic_initsenses,
-                           sizeof(mpc85xx_ads_openpic_initsenses),
-                           " OpenPIC  ");
-        BUG_ON(mpic1 == NULL);
-        mpic_assign_isu(mpic1, 0, OpenPIC_PAddr + 0x10200);
-        mpic_assign_isu(mpic1, 1, OpenPIC_PAddr + 0x10280);
-        mpic_assign_isu(mpic1, 2, OpenPIC_PAddr + 0x10300);
-        mpic_assign_isu(mpic1, 3, OpenPIC_PAddr + 0x10380);
-        mpic_assign_isu(mpic1, 4, OpenPIC_PAddr + 0x10400);
-        mpic_assign_isu(mpic1, 5, OpenPIC_PAddr + 0x10480);
-        mpic_assign_isu(mpic1, 6, OpenPIC_PAddr + 0x10500);
-        mpic_assign_isu(mpic1, 7, OpenPIC_PAddr + 0x10580);
-
-        /* dummy mappings to get to 48 */
-        mpic_assign_isu(mpic1, 8, OpenPIC_PAddr + 0x10600);
-        mpic_assign_isu(mpic1, 9, OpenPIC_PAddr + 0x10680);
-        mpic_assign_isu(mpic1, 10, OpenPIC_PAddr + 0x10700);
-        mpic_assign_isu(mpic1, 11, OpenPIC_PAddr + 0x10780);
-
-        /* External ints */
-        mpic_assign_isu(mpic1, 12, OpenPIC_PAddr + 0x10000);
-        mpic_assign_isu(mpic1, 13, OpenPIC_PAddr + 0x10080);
-        mpic_assign_isu(mpic1, 14, OpenPIC_PAddr + 0x10100);
-        mpic_init(mpic1);
+        struct mpic *mpic;
+        struct resource r;
+        struct device_node *np = NULL;
+
+        np = of_find_node_by_type(np, "open-pic");
+
+        if (np == NULL) {
+                printk(KERN_ERR "Could not find open-pic node\n");
+                return;
+        }
+
+        if(of_address_to_resource(np, 0, &r)) {
+                printk(KERN_ERR "Could not map mpic register space\n");
+                of_node_put(np);
+                return;
+        }
+
+        mpic = mpic_alloc(np, r.start,
+                        MPIC_PRIMARY | MPIC_WANTS_RESET | MPIC_BIG_ENDIAN,
+                        4, 0, " OpenPIC  ");
+        BUG_ON(mpic == NULL);
+        of_node_put(np);
+
+        mpic_assign_isu(mpic, 0, r.start + 0x10200);
+        mpic_assign_isu(mpic, 1, r.start + 0x10280);
+        mpic_assign_isu(mpic, 2, r.start + 0x10300);
+        mpic_assign_isu(mpic, 3, r.start + 0x10380);
+        mpic_assign_isu(mpic, 4, r.start + 0x10400);
+        mpic_assign_isu(mpic, 5, r.start + 0x10480);
+        mpic_assign_isu(mpic, 6, r.start + 0x10500);
+        mpic_assign_isu(mpic, 7, r.start + 0x10580);
+
+        /* Unused on this platform (leave room for 8548) */
+        mpic_assign_isu(mpic, 8, r.start + 0x10600);
+        mpic_assign_isu(mpic, 9, r.start + 0x10680);
+        mpic_assign_isu(mpic, 10, r.start + 0x10700);
+        mpic_assign_isu(mpic, 11, r.start + 0x10780);
+
+        /* External Interrupts */
+        mpic_assign_isu(mpic, 12, r.start + 0x10000);
+        mpic_assign_isu(mpic, 13, r.start + 0x10080);
+        mpic_assign_isu(mpic, 14, r.start + 0x10100);
+
+        mpic_init(mpic);
 }
 
 /*
@@ -165,7 +112,9 @@ void __init mpc85xx_ads_pic_init(void)
 static void __init mpc85xx_ads_setup_arch(void)
 {
         struct device_node *cpu;
+#ifdef CONFIG_PCI
         struct device_node *np;
+#endif
 
         if (ppc_md.progress)
                 ppc_md.progress("mpc85xx_ads_setup_arch()", 0);
@@ -186,8 +135,7 @@ static void __init mpc85xx_ads_setup_arch(void)
         for (np = NULL; (np = of_find_node_by_type(np, "pci")) != NULL;)
                 add_bridge(np);
 
-        ppc_md.pci_swizzle = common_swizzle;
-        ppc_md.pci_map_irq = mpc85xx_map_irq;
+        ppc_md.pcibios_fixup = mpc85xx_pcibios_fixup;
         ppc_md.pci_exclude_device = mpc85xx_exclude_device;
 #endif
 
diff --git a/arch/powerpc/platforms/85xx/mpc85xx_cds.c b/arch/powerpc/platforms/85xx/mpc85xx_cds.c
index 18e6e11f7020..1d357d32a29f 100644
--- a/arch/powerpc/platforms/85xx/mpc85xx_cds.c
+++ b/arch/powerpc/platforms/85xx/mpc85xx_cds.c
@@ -57,94 +57,8 @@ unsigned long isa_mem_base = 0;
 static int cds_pci_slot = 2;
 static volatile u8 *cadmus;
 
-/*
- * Internal interrupts are all Level Sensitive, and Positive Polarity
- *
- * Note:  Likely, this table and the following function should be
- *        obtained and derived from the OF Device Tree.
- */
-static u_char mpc85xx_cds_openpic_initsenses[] __initdata = {
-        MPC85XX_INTERNAL_IRQ_SENSES,
-#if defined(CONFIG_PCI)
-        (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE),      /* Ext 0: PCI slot 0 */
-        (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE),      /* Ext 1: PCI slot 1 */
-        (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE),      /* Ext 2: PCI slot 2 */
-        (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE),      /* Ext 3: PCI slot 3 */
-#else
-        0x0,                            /* External  0: */
-        0x0,                            /* External  1: */
-        0x0,                            /* External  2: */
-        0x0,                            /* External  3: */
-#endif
-        (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE),      /* External 5: PHY */
-        0x0,                            /* External  6: */
-        0x0,                            /* External  7: */
-        0x0,                            /* External  8: */
-        0x0,                            /* External  9: */
-        0x0,                            /* External 10: */
-#ifdef CONFIG_PCI
-        (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE),    /* Ext 11: PCI2 slot 0 */
-#else
-        0x0,                            /* External 11: */
-#endif
-};
-
 
 #ifdef CONFIG_PCI
-/*
- * interrupt routing
- */
-int
-mpc85xx_map_irq(struct pci_dev *dev, unsigned char idsel, unsigned char pin)
-{
-        struct pci_controller *hose = pci_bus_to_hose(dev->bus->number);
-
-        if (!hose->index)
-        {
-                /* Handle PCI1 interrupts */
-                char pci_irq_table[][4] =
-                        /*
-                         *      PCI IDSEL/INTPIN->INTLINE
-                         *        A      B      C      D
-                         */
-
-                        /* Note IRQ assignment for slots is based on which slot the elysium is
-                         * in -- in this setup elysium is in slot #2 (this PIRQA as first
-                         * interrupt on slot */
-                {
-                        { 0, 1, 2, 3 }, /* 16 - PMC */
-                        { 0, 1, 2, 3 }, /* 17 P2P (Tsi320) */
-                        { 0, 1, 2, 3 }, /* 18 - Slot 1 */
-                        { 1, 2, 3, 0 }, /* 19 - Slot 2 */
-                        { 2, 3, 0, 1 }, /* 20 - Slot 3 */
-                        { 3, 0, 1, 2 }, /* 21 - Slot 4 */
-                };
-
-                const long min_idsel = 16, max_idsel = 21, irqs_per_slot = 4;
-                int i, j;
-
-                for (i = 0; i < 6; i++)
-                        for (j = 0; j < 4; j++)
-                                pci_irq_table[i][j] =
-                                        ((pci_irq_table[i][j] + 5 -
-                                          cds_pci_slot) & 0x3) + PIRQ0A;
-
-                return PCI_IRQ_TABLE_LOOKUP;
-        } else {
-                /* Handle PCI2 interrupts (if we have one) */
-                char pci_irq_table[][4] =
-                {
-                        /*
-                         * We only have one slot and one interrupt
-                         * going to PIRQA - PIRQD */
-                        { PIRQ1A, PIRQ1A, PIRQ1A, PIRQ1A }, /* 21 - slot 0 */
-                };
-
-                const long min_idsel = 21, max_idsel = 21, irqs_per_slot = 4;
-
-                return PCI_IRQ_TABLE_LOOKUP;
-        }
-}
 
 #define ARCADIA_HOST_BRIDGE_IDSEL       17
 #define ARCADIA_2ND_BRIDGE_IDSEL        3
@@ -210,50 +124,104 @@ mpc85xx_cds_pcibios_fixup(void)
                 pci_write_config_byte(dev, PCI_INTERRUPT_LINE, 11);
                 pci_dev_put(dev);
         }
+
+        /* Now map all the PCI irqs */
+        dev = NULL;
+        for_each_pci_dev(dev)
+                pci_read_irq_line(dev);
+}
+
+#ifdef CONFIG_PPC_I8259
+#warning The i8259 PIC support is currently broken
+static void mpc85xx_8259_cascade(unsigned int irq, struct
+                irq_desc *desc, struct pt_regs *regs)
+{
+        unsigned int cascade_irq = i8259_irq(regs);
+
+        if (cascade_irq != NO_IRQ)
+                generic_handle_irq(cascade_irq, regs);
+
+        desc->chip->eoi(irq);
 }
+#endif /* PPC_I8259 */
 #endif /* CONFIG_PCI */
 
 void __init mpc85xx_cds_pic_init(void)
 {
-        struct mpic *mpic1;
-        phys_addr_t OpenPIC_PAddr;
+        struct mpic *mpic;
+        struct resource r;
+        struct device_node *np = NULL;
+        struct device_node *cascade_node = NULL;
+        int cascade_irq;
 
-        /* Determine the Physical Address of the OpenPIC regs */
-        OpenPIC_PAddr = get_immrbase() + MPC85xx_OPENPIC_OFFSET;
+        np = of_find_node_by_type(np, "open-pic");
+
+        if (np == NULL) {
+                printk(KERN_ERR "Could not find open-pic node\n");
+                return;
+        }
 
-        mpic1 = mpic_alloc(OpenPIC_PAddr,
+        if (of_address_to_resource(np, 0, &r)) {
+                printk(KERN_ERR "Failed to map mpic register space\n");
+                of_node_put(np);
+                return;
+        }
+
+        mpic = mpic_alloc(np, r.start,
                         MPIC_PRIMARY | MPIC_WANTS_RESET | MPIC_BIG_ENDIAN,
-                        4, MPC85xx_OPENPIC_IRQ_OFFSET, 0, 250,
-                        mpc85xx_cds_openpic_initsenses,
-                        sizeof(mpc85xx_cds_openpic_initsenses), " OpenPIC  ");
-        BUG_ON(mpic1 == NULL);
-        mpic_assign_isu(mpic1, 0, OpenPIC_PAddr + 0x10200);
-        mpic_assign_isu(mpic1, 1, OpenPIC_PAddr + 0x10280);
-        mpic_assign_isu(mpic1, 2, OpenPIC_PAddr + 0x10300);
-        mpic_assign_isu(mpic1, 3, OpenPIC_PAddr + 0x10380);
-        mpic_assign_isu(mpic1, 4, OpenPIC_PAddr + 0x10400);
-        mpic_assign_isu(mpic1, 5, OpenPIC_PAddr + 0x10480);
-        mpic_assign_isu(mpic1, 6, OpenPIC_PAddr + 0x10500);
-        mpic_assign_isu(mpic1, 7, OpenPIC_PAddr + 0x10580);
-
-        /* dummy mappings to get to 48 */
-        mpic_assign_isu(mpic1, 8, OpenPIC_PAddr + 0x10600);
-        mpic_assign_isu(mpic1, 9, OpenPIC_PAddr + 0x10680);
-        mpic_assign_isu(mpic1, 10, OpenPIC_PAddr + 0x10700);
-        mpic_assign_isu(mpic1, 11, OpenPIC_PAddr + 0x10780);
-
-        /* External ints */
-        mpic_assign_isu(mpic1, 12, OpenPIC_PAddr + 0x10000);
-        mpic_assign_isu(mpic1, 13, OpenPIC_PAddr + 0x10080);
-        mpic_assign_isu(mpic1, 14, OpenPIC_PAddr + 0x10100);
-
-        mpic_init(mpic1);
+                        4, 0, " OpenPIC  ");
+        BUG_ON(mpic == NULL);
+
+        /* Return the mpic node */
+        of_node_put(np);
+
+        mpic_assign_isu(mpic, 0, r.start + 0x10200);
+        mpic_assign_isu(mpic, 1, r.start + 0x10280);
+        mpic_assign_isu(mpic, 2, r.start + 0x10300);
+        mpic_assign_isu(mpic, 3, r.start + 0x10380);
+        mpic_assign_isu(mpic, 4, r.start + 0x10400);
+        mpic_assign_isu(mpic, 5, r.start + 0x10480);
+        mpic_assign_isu(mpic, 6, r.start + 0x10500);
+        mpic_assign_isu(mpic, 7, r.start + 0x10580);
+
+        /* Used only for 8548 so far, but no harm in
+         * allocating them for everyone */
+        mpic_assign_isu(mpic, 8, r.start + 0x10600);
+        mpic_assign_isu(mpic, 9, r.start + 0x10680);
+        mpic_assign_isu(mpic, 10, r.start + 0x10700);
+        mpic_assign_isu(mpic, 11, r.start + 0x10780);
+
+        /* External Interrupts */
+        mpic_assign_isu(mpic, 12, r.start + 0x10000);
+        mpic_assign_isu(mpic, 13, r.start + 0x10080);
+        mpic_assign_isu(mpic, 14, r.start + 0x10100);
+
+        mpic_init(mpic);
+
+#ifdef CONFIG_PPC_I8259
+        /* Initialize the i8259 controller */
+        for_each_node_by_type(np, "interrupt-controller")
+                if (device_is_compatible(np, "chrp,iic")) {
+                        cascade_node = np;
+                        break;
+                }
+
+        if (cascade_node == NULL) {
+                printk(KERN_DEBUG "Could not find i8259 PIC\n");
+                return;
+        }
 
-#ifdef CONFIG_PCI
-        mpic_setup_cascade(PIRQ0A, i8259_irq_cascade, NULL);
+        cascade_irq = irq_of_parse_and_map(cascade_node, 0);
+        if (cascade_irq == NO_IRQ) {
+                printk(KERN_ERR "Failed to map cascade interrupt\n");
+                return;
+        }
 
-        i8259_init(0,0);
-#endif
+        i8259_init(cascade_node, 0);
+        of_node_put(cascade_node);
+
+        set_irq_chained_handler(cascade_irq, mpc85xx_8259_cascade);
+#endif /* CONFIG_PPC_I8259 */
 }
 
 
@@ -298,8 +266,6 @@ mpc85xx_cds_setup_arch(void)
                 add_bridge(np);
 
         ppc_md.pcibios_fixup = mpc85xx_cds_pcibios_fixup;
-        ppc_md.pci_swizzle = common_swizzle;
-        ppc_md.pci_map_irq = mpc85xx_map_irq;
         ppc_md.pci_exclude_device = mpc85xx_exclude_device;
 #endif
 
diff --git a/arch/powerpc/platforms/86xx/mpc8641_hpcn.h b/arch/powerpc/platforms/86xx/mpc8641_hpcn.h
index 5d2bcf78cef7..41e554c4af94 100644
--- a/arch/powerpc/platforms/86xx/mpc8641_hpcn.h
+++ b/arch/powerpc/platforms/86xx/mpc8641_hpcn.h
@@ -16,38 +16,6 @@
 
 #include <linux/init.h>
 
-/* PCI interrupt controller */
-#define PIRQA           3
-#define PIRQB           4
-#define PIRQC           5
-#define PIRQD           6
-#define PIRQ7           7
-#define PIRQE           9
-#define PIRQF           10
-#define PIRQG           11
-#define PIRQH           12
-
-/* PCI-Express memory map */
-#define MPC86XX_PCIE_LOWER_IO        0x00000000
-#define MPC86XX_PCIE_UPPER_IO        0x00ffffff
-
-#define MPC86XX_PCIE_LOWER_MEM       0x80000000
-#define MPC86XX_PCIE_UPPER_MEM       0x9fffffff
-
-#define MPC86XX_PCIE_IO_BASE         0xe2000000
-#define MPC86XX_PCIE_MEM_OFFSET      0x00000000
-
-#define MPC86XX_PCIE_IO_SIZE         0x01000000
-
-#define PCIE1_CFG_ADDR_OFFSET    (0x8000)
-#define PCIE1_CFG_DATA_OFFSET    (0x8004)
-
-#define PCIE2_CFG_ADDR_OFFSET    (0x9000)
-#define PCIE2_CFG_DATA_OFFSET    (0x9004)
-
-#define MPC86xx_PCIE_OFFSET PCIE1_CFG_ADDR_OFFSET
-#define MPC86xx_PCIE_SIZE       (0x1000)
-
 #define MPC86XX_RSTCR_OFFSET    (0xe00b0)       /* Reset Control Register */
 
 #endif  /* __MPC8641_HPCN_H__ */
diff --git a/arch/powerpc/platforms/86xx/mpc86xx_hpcn.c b/arch/powerpc/platforms/86xx/mpc86xx_hpcn.c
index ebae73eb0063..146da3001c67 100644
--- a/arch/powerpc/platforms/86xx/mpc86xx_hpcn.c
+++ b/arch/powerpc/platforms/86xx/mpc86xx_hpcn.c
@@ -37,6 +37,14 @@
 #include "mpc86xx.h"
 #include "mpc8641_hpcn.h"
 
+#undef DEBUG
+
+#ifdef DEBUG
+#define DBG(fmt...) do { printk(KERN_ERR fmt); } while(0)
+#else
+#define DBG(fmt...) do { } while(0)
+#endif
+
 #ifndef CONFIG_PCI
 unsigned long isa_io_base = 0;
 unsigned long isa_mem_base = 0;
@@ -44,205 +52,215 @@ unsigned long pci_dram_offset = 0;
 #endif
 
 
-/*
- * Internal interrupts are all Level Sensitive, and Positive Polarity
- */
-
-static u_char mpc86xx_hpcn_openpic_initsenses[] __initdata = {
-        (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE),      /* Internal  0: Reserved */
-        (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE),      /* Internal  1: MCM */
-        (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE),      /* Internal  2: DDR DRAM */
-        (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE),      /* Internal  3: LBIU */
-        (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE),      /* Internal  4: DMA 0 */
-        (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE),      /* Internal  5: DMA 1 */
-        (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE),      /* Internal  6: DMA 2 */
-        (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE),      /* Internal  7: DMA 3 */
-        (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE),      /* Internal  8: PCIE1 */
-        (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE),      /* Internal  9: PCIE2 */
-        (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE),      /* Internal 10: Reserved */
-        (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE),      /* Internal 11: Reserved */
-        (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE),      /* Internal 12: DUART2 */
-        (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE),      /* Internal 13: TSEC 1 Transmit */
-        (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE),      /* Internal 14: TSEC 1 Receive */
-        (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE),      /* Internal 15: TSEC 3 transmit */
-        (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE),      /* Internal 16: TSEC 3 receive */
-        (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE),      /* Internal 17: TSEC 3 error */
-        (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE),      /* Internal 18: TSEC 1 Receive/Transmit Error */
-        (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE),      /* Internal 19: TSEC 2 Transmit */
-        (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE),      /* Internal 20: TSEC 2 Receive */
-        (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE),      /* Internal 21: TSEC 4 transmit */
-        (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE),      /* Internal 22: TSEC 4 receive */
-        (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE),      /* Internal 23: TSEC 4 error */
-        (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE),      /* Internal 24: TSEC 2 Receive/Transmit Error */
-        (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE),      /* Internal 25: Unused */
-        (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE),      /* Internal 26: DUART1 */
-        (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE),      /* Internal 27: I2C */
-        (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE),      /* Internal 28: Performance Monitor */
-        (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE),      /* Internal 29: Unused */
-        (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE),      /* Internal 30: Unused */
-        (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE),      /* Internal 31: Unused */
-        (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE),      /* Internal 32: SRIO error/write-port unit */
-        (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE),      /* Internal 33: SRIO outbound doorbell */
-        (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE),      /* Internal 34: SRIO inbound doorbell */
-        (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE),      /* Internal 35: Unused */
-        (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE),      /* Internal 36: Unused */
-        (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE),      /* Internal 37: SRIO outbound message unit 1 */
-        (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE),      /* Internal 38: SRIO inbound message unit 1 */
-        (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE),      /* Internal 39: SRIO outbound message unit 2 */
-        (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE),      /* Internal 40: SRIO inbound message unit 2 */
-        (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE),      /* Internal 41: Unused */
-        (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE),      /* Internal 42: Unused */
-        (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE),      /* Internal 43: Unused */
-        (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE),      /* Internal 44: Unused */
-        (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE),      /* Internal 45: Unused */
-        (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE),      /* Internal 46: Unused */
-        (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE),      /* Internal 47: Unused */
-        0x0,                                            /* External  0: */
-        0x0,                                            /* External  1: */
-        0x0,                                            /* External  2: */
-        0x0,                                            /* External  3: */
-        0x0,                                            /* External  4: */
-        0x0,                                            /* External  5: */
-        0x0,                                            /* External  6: */
-        0x0,                                            /* External  7: */
-        (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE),      /* External  8: Pixis FPGA */
-        (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE),      /* External  9: ULI 8259 INTR Cascade */
-        (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE),      /* External 10: Quad ETH PHY */
-        0x0,                                            /* External 11: */
-        0x0,
-        0x0,
-        0x0,
-        0x0,
-};
-
+static void mpc86xx_8259_cascade(unsigned int irq, struct irq_desc *desc,
+                                 struct pt_regs *regs)
+{
+        unsigned int cascade_irq = i8259_irq(regs);
+        if (cascade_irq != NO_IRQ)
+                generic_handle_irq(cascade_irq, regs);
+        desc->chip->eoi(irq);
+}
 
 void __init
 mpc86xx_hpcn_init_irq(void)
 {
         struct mpic *mpic1;
+        struct device_node *np, *cascade_node = NULL;
+        int cascade_irq;
         phys_addr_t openpic_paddr;
 
+        np = of_find_node_by_type(NULL, "open-pic");
+        if (np == NULL)
+                return;
+
         /* Determine the Physical Address of the OpenPIC regs */
         openpic_paddr = get_immrbase() + MPC86xx_OPENPIC_OFFSET;
 
         /* Alloc mpic structure and per isu has 16 INT entries. */
-        mpic1 = mpic_alloc(openpic_paddr,
+        mpic1 = mpic_alloc(np, openpic_paddr,
                         MPIC_PRIMARY | MPIC_WANTS_RESET | MPIC_BIG_ENDIAN,
-                        16, MPC86xx_OPENPIC_IRQ_OFFSET, 0, 250,
-                        mpc86xx_hpcn_openpic_initsenses,
-                        sizeof(mpc86xx_hpcn_openpic_initsenses),
+                        16, NR_IRQS - 4,
                         " MPIC     ");
         BUG_ON(mpic1 == NULL);
 
+        mpic_assign_isu(mpic1, 0, openpic_paddr + 0x10000);
+
         /* 48 Internal Interrupts */
-        mpic_assign_isu(mpic1, 0, openpic_paddr + 0x10200);
-        mpic_assign_isu(mpic1, 1, openpic_paddr + 0x10400);
-        mpic_assign_isu(mpic1, 2, openpic_paddr + 0x10600);
+        mpic_assign_isu(mpic1, 1, openpic_paddr + 0x10200);
+        mpic_assign_isu(mpic1, 2, openpic_paddr + 0x10400);
+        mpic_assign_isu(mpic1, 3, openpic_paddr + 0x10600);
 
-        /* 16 External interrupts */
-        mpic_assign_isu(mpic1, 3, openpic_paddr + 0x10000);
+        /* 16 External interrupts
+         * Moving them from [0 - 15] to [64 - 79]
+         */
+        mpic_assign_isu(mpic1, 4, openpic_paddr + 0x10000);
 
         mpic_init(mpic1);
 
 #ifdef CONFIG_PCI
-        mpic_setup_cascade(MPC86xx_IRQ_EXT9, i8259_irq_cascade, NULL);
-        i8259_init(0, I8259_OFFSET);
-#endif
-}
+        /* Initialize i8259 controller */
+        for_each_node_by_type(np, "interrupt-controller")
+                if (device_is_compatible(np, "chrp,iic")) {
+                        cascade_node = np;
+                        break;
+                }
+        if (cascade_node == NULL) {
+                printk(KERN_DEBUG "mpc86xxhpcn: no ISA interrupt controller\n");
+                return;
+        }
 
+        cascade_irq = irq_of_parse_and_map(cascade_node, 0);
+        if (cascade_irq == NO_IRQ) {
+                printk(KERN_ERR "mpc86xxhpcn: failed to map cascade interrupt");
+                return;
+        }
+        DBG("mpc86xxhpcn: cascade mapped to irq %d\n", cascade_irq);
 
+        i8259_init(cascade_node, 0);
+        set_irq_chained_handler(cascade_irq, mpc86xx_8259_cascade);
+#endif
+}
 
 #ifdef CONFIG_PCI
-/*
- * interrupt routing
- */
 
-int
-mpc86xx_map_irq(struct pci_dev *dev, unsigned char idsel, unsigned char pin)
+enum pirq{PIRQA = 8, PIRQB, PIRQC, PIRQD, PIRQE, PIRQF, PIRQG, PIRQH};
+const unsigned char uli1575_irq_route_table[16] = {
+        0,      /* 0: Reserved */
+        0x8,    /* 1: 0b1000 */
+        0,      /* 2: Reserved */
+        0x2,    /* 3: 0b0010 */
+        0x4,    /* 4: 0b0100 */
+        0x5,    /* 5: 0b0101 */
+        0x7,    /* 6: 0b0111 */
+        0x6,    /* 7: 0b0110 */
+        0,      /* 8: Reserved */
+        0x1,    /* 9: 0b0001 */
+        0x3,    /* 10: 0b0011 */
+        0x9,    /* 11: 0b1001 */
+        0xb,    /* 12: 0b1011 */
+        0,      /* 13: Reserved */
+        0xd,    /* 14, 0b1101 */
+        0xf,    /* 15, 0b1111 */
+};
+
+static int __devinit
+get_pci_irq_from_of(struct pci_controller *hose, int slot, int pin)
 {
-        static char pci_irq_table[][4] = {
-                /*
-                 *      PCI IDSEL/INTPIN->INTLINE
-                 *       A      B      C      D
-                 */
-                {PIRQA, PIRQB, PIRQC, PIRQD},   /* IDSEL 17 -- PCI Slot 1 */
-                {PIRQB, PIRQC, PIRQD, PIRQA},   /* IDSEL 18 -- PCI Slot 2 */
-                {0, 0, 0, 0},                   /* IDSEL 19 */
-                {0, 0, 0, 0},                   /* IDSEL 20 */
-                {0, 0, 0, 0},                   /* IDSEL 21 */
-                {0, 0, 0, 0},                   /* IDSEL 22 */
-                {0, 0, 0, 0},                   /* IDSEL 23 */
-                {0, 0, 0, 0},                   /* IDSEL 24 */
-                {0, 0, 0, 0},                   /* IDSEL 25 */
-                {PIRQD, PIRQA, PIRQB, PIRQC},   /* IDSEL 26 -- PCI Bridge*/
-                {PIRQC, 0, 0, 0},               /* IDSEL 27 -- LAN */
-                {PIRQE, PIRQF, PIRQH, PIRQ7},   /* IDSEL 28 -- USB 1.1 */
-                {PIRQE, PIRQF, PIRQG, 0},       /* IDSEL 29 -- Audio & Modem */
-                {PIRQH, 0, 0, 0},               /* IDSEL 30 -- LPC & PMU*/
-                {PIRQD, 0, 0, 0},               /* IDSEL 31 -- ATA */
-        };
-
-        const long min_idsel = 17, max_idsel = 31, irqs_per_slot = 4;
-        return PCI_IRQ_TABLE_LOOKUP + I8259_OFFSET;
+        struct of_irq oirq;
+        u32 laddr[3];
+        struct device_node *hosenode = hose ? hose->arch_data : NULL;
+
+        if (!hosenode) return -EINVAL;
+
+        laddr[0] = (hose->first_busno << 16) | (PCI_DEVFN(slot, 0) << 8);
+        laddr[1] = laddr[2] = 0;
+        of_irq_map_raw(hosenode, &pin, laddr, &oirq);
+        DBG("mpc86xx_hpcn: pci irq addr %x, slot %d, pin %d, irq %d\n",
+                        laddr[0], slot, pin, oirq.specifier[0]);
+        return oirq.specifier[0];
 }
 
-static void __devinit quirk_ali1575(struct pci_dev *dev)
+static void __devinit quirk_uli1575(struct pci_dev *dev)
 {
         unsigned short temp;
+        struct pci_controller *hose = pci_bus_to_host(dev->bus);
+        unsigned char irq2pin[16];
+        unsigned long pirq_map_word = 0;
+        u32 irq;
+        int i;
 
         /*
-         * ALI1575 interrupts route table setup:
+         * ULI1575 interrupts route setup
+         */
+        memset(irq2pin, 0, 16); /* Initialize default value 0 */
+
+        /*
+         * PIRQA -> PIRQD mapping read from OF-tree
+         *
+         * interrupts for PCI slot0 -- PIRQA / PIRQB / PIRQC / PIRQD
+         *                PCI slot1 -- PIRQB / PIRQC / PIRQD / PIRQA
+         */
+        for (i = 0; i < 4; i++){
+                irq = get_pci_irq_from_of(hose, 17, i + 1);
+                if (irq > 0 && irq < 16)
+                        irq2pin[irq] = PIRQA + i;
+                else
+                        printk(KERN_WARNING "ULI1575 device"
+                            "(slot %d, pin %d) irq %d is invalid.\n",
+                            17, i, irq);
+        }
+
+        /*
+         * PIRQE -> PIRQF mapping set manually
          *
          * IRQ pin   IRQ#
-         * PIRQA ---- 3
-         * PIRQB ---- 4
-         * PIRQC ---- 5
-         * PIRQD ---- 6
          * PIRQE ---- 9
          * PIRQF ---- 10
          * PIRQG ---- 11
          * PIRQH ---- 12
-         *
-         * interrupts for PCI slot0 -- PIRQA / PIRQB / PIRQC / PIRQD
-         *                PCI slot1 -- PIRQB / PIRQC / PIRQD / PIRQA
          */
-        pci_write_config_dword(dev, 0x48, 0xb9317542);
+        for (i = 0; i < 4; i++) irq2pin[i + 9] = PIRQE + i;
+
+        /* Set IRQ-PIRQ Mapping to ULI1575 */
+        for (i = 0; i < 16; i++)
+                if (irq2pin[i])
+                        pirq_map_word |= (uli1575_irq_route_table[i] & 0xf)
+                                << ((irq2pin[i] - PIRQA) * 4);
 
-        /* USB 1.1 OHCI controller 1, interrupt: PIRQE */
-        pci_write_config_byte(dev, 0x86, 0x0c);
+        /* ULI1575 IRQ mapping conf register default value is 0xb9317542 */
+        DBG("Setup ULI1575 IRQ mapping configuration register value = 0x%x\n",
+                        pirq_map_word);
+        pci_write_config_dword(dev, 0x48, pirq_map_word);
 
-        /* USB 1.1 OHCI controller 2, interrupt: PIRQF */
-        pci_write_config_byte(dev, 0x87, 0x0d);
+#define ULI1575_SET_DEV_IRQ(slot, pin, reg)                             \
+        do {                                                            \
+                int irq;                                                \
+                irq = get_pci_irq_from_of(hose, slot, pin);             \
+                if (irq > 0 && irq < 16)                                \
+                        pci_write_config_byte(dev, reg, irq2pin[irq]);  \
+                else                                                    \
+                        printk(KERN_WARNING "ULI1575 device"            \
+                            "(slot %d, pin %d) irq %d is invalid.\n",   \
+                            slot, pin, irq);                            \
+        } while(0)
 
-        /* USB 1.1 OHCI controller 3, interrupt: PIRQH */
-        pci_write_config_byte(dev, 0x88, 0x0f);
+        /* USB 1.1 OHCI controller 1, slot 28, pin 1 */
+        ULI1575_SET_DEV_IRQ(28, 1, 0x86);
 
-        /* USB 2.0 controller, interrupt: PIRQ7 */
-        pci_write_config_byte(dev, 0x74, 0x06);
+        /* USB 1.1 OHCI controller 2, slot 28, pin 2 */
+        ULI1575_SET_DEV_IRQ(28, 2, 0x87);
 
-        /* Audio controller, interrupt: PIRQE */
-        pci_write_config_byte(dev, 0x8a, 0x0c);
+        /* USB 1.1 OHCI controller 3, slot 28, pin 3 */
+        ULI1575_SET_DEV_IRQ(28, 3, 0x88);
 
-        /* Modem controller, interrupt: PIRQF */
-        pci_write_config_byte(dev, 0x8b, 0x0d);
+        /* USB 2.0 controller, slot 28, pin 4 */
+        irq = get_pci_irq_from_of(hose, 28, 4);
+        if (irq >= 0 && irq <=15)
+                pci_write_config_dword(dev, 0x74, uli1575_irq_route_table[irq]);
 
-        /* HD audio controller, interrupt: PIRQG */
-        pci_write_config_byte(dev, 0x8c, 0x0e);
+        /* Audio controller, slot 29, pin 1 */
+        ULI1575_SET_DEV_IRQ(29, 1, 0x8a);
 
-        /* Serial ATA interrupt: PIRQD */
-        pci_write_config_byte(dev, 0x8d, 0x0b);
+        /* Modem controller, slot 29, pin 2 */
+        ULI1575_SET_DEV_IRQ(29, 2, 0x8b);
 
-        /* SMB interrupt: PIRQH */
-        pci_write_config_byte(dev, 0x8e, 0x0f);
+        /* HD audio controller, slot 29, pin 3 */
+        ULI1575_SET_DEV_IRQ(29, 3, 0x8c);
 
-        /* PMU ACPI SCI interrupt: PIRQH */
-        pci_write_config_byte(dev, 0x8f, 0x0f);
+        /* SMB interrupt: slot 30, pin 1 */
+        ULI1575_SET_DEV_IRQ(30, 1, 0x8e);
+
+        /* PMU ACPI SCI interrupt: slot 30, pin 2 */
+        ULI1575_SET_DEV_IRQ(30, 2, 0x8f);
+
+        /* Serial ATA interrupt: slot 31, pin 1 */
+        ULI1575_SET_DEV_IRQ(31, 1, 0x8d);
 
         /* Primary PATA IDE IRQ: 14
          * Secondary PATA IDE IRQ: 15
          */
-        pci_write_config_byte(dev, 0x44, 0x3d);
-        pci_write_config_byte(dev, 0x75, 0x0f);
+        pci_write_config_byte(dev, 0x44, 0x30 | uli1575_irq_route_table[14]);
+        pci_write_config_byte(dev, 0x75, uli1575_irq_route_table[15]);
 
         /* Set IRQ14 and IRQ15 to legacy IRQs */
         pci_read_config_word(dev, 0x46, &temp);
@@ -264,6 +282,8 @@ static void __devinit quirk_ali1575(struct pci_dev *dev)
          */
         outb(0xfa, 0x4d0);
         outb(0x1e, 0x4d1);
+
+#undef ULI1575_SET_DEV_IRQ
 }
 
 static void __devinit quirk_uli5288(struct pci_dev *dev)
@@ -306,7 +326,7 @@ static void __devinit early_uli5249(struct pci_dev *dev)
         dev->class |= 0x1;
 }
 
-DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_AL, 0x1575, quirk_ali1575);
+DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_AL, 0x1575, quirk_uli1575);
 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_AL, 0x5288, quirk_uli5288);
 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_AL, 0x5229, quirk_uli5229);
 DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_AL, 0x5249, early_uli5249);
@@ -337,8 +357,6 @@ mpc86xx_hpcn_setup_arch(void)
         for (np = NULL; (np = of_find_node_by_type(np, "pci")) != NULL;)
                 add_bridge(np);
 
-        ppc_md.pci_swizzle = common_swizzle;
-        ppc_md.pci_map_irq = mpc86xx_map_irq;
         ppc_md.pci_exclude_device = mpc86xx_exclude_device;
 #endif
 
@@ -377,6 +395,15 @@ mpc86xx_hpcn_show_cpuinfo(struct seq_file *m)
 }
 
 
+void __init mpc86xx_hpcn_pcibios_fixup(void)
+{
+        struct pci_dev *dev = NULL;
+
+        for_each_pci_dev(dev)
+                pci_read_irq_line(dev);
+}
+
+
 /*
  * Called very early, device-tree isn't unflattened
  */
@@ -431,6 +458,7 @@ define_machine(mpc86xx_hpcn) {
         .setup_arch             = mpc86xx_hpcn_setup_arch,
         .init_IRQ               = mpc86xx_hpcn_init_irq,
         .show_cpuinfo           = mpc86xx_hpcn_show_cpuinfo,
+        .pcibios_fixup          = mpc86xx_hpcn_pcibios_fixup,
         .get_irq                = mpic_get_irq,
         .restart                = mpc86xx_restart,
         .time_init              = mpc86xx_time_init,
diff --git a/arch/powerpc/platforms/embedded6xx/mpc7448_hpc2.c b/arch/powerpc/platforms/embedded6xx/mpc7448_hpc2.c
index d7a4fc7ca238..ed00ed2455dd 100644
--- a/arch/powerpc/platforms/embedded6xx/mpc7448_hpc2.c
+++ b/arch/powerpc/platforms/embedded6xx/mpc7448_hpc2.c
@@ -1,7 +1,7 @@
 /*
  * mpc7448_hpc2.c
  *
- * Board setup routines for the Freescale Taiga platform
+ * Board setup routines for the Freescale mpc7448hpc2(taiga) platform
  *
  * Author: Jacob Pan
  *       jacob.pan@freescale.com
@@ -12,10 +12,10 @@
  *
  * Copyright 2004-2006 Freescale Semiconductor, Inc.
  *
- * This file is licensed under
- * the terms of the GNU General Public License version 2.  This program
- * is licensed "as is" without any warranty of any kind, whether express
- * or implied.
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
  */
 
 #include <linux/config.h>
@@ -62,43 +62,8 @@ pci_dram_offset = MPC7448_HPC2_PCI_MEM_OFFSET;
 extern int tsi108_setup_pci(struct device_node *dev);
 extern void _nmask_and_or_msr(unsigned long nmask, unsigned long or_val);
 extern void tsi108_pci_int_init(void);
-extern int tsi108_irq_cascade(struct pt_regs *regs, void *unused);
-
-/*
- * Define all of the IRQ senses and polarities.  Taken from the
- * mpc7448hpc  manual.
- * Note:  Likely, this table and the following function should be
- *        obtained and derived from the OF Device Tree.
- */
-
-static u_char mpc7448_hpc2_pic_initsenses[] __initdata = {
-        /* External on-board sources */
-        (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE),      /* INT[0] XINT0 from FPGA */
-        (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE),      /* INT[1] XINT1 from FPGA */
-        (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE),      /* INT[2] PHY_INT from both GIGE */
-        (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE),      /* INT[3] RESERVED */
-        /* Internal Tsi108/109 interrupt sources */
-        (IRQ_SENSE_EDGE  | IRQ_POLARITY_POSITIVE),      /* Reserved IRQ */
-        (IRQ_SENSE_EDGE  | IRQ_POLARITY_POSITIVE),      /* Reserved IRQ */
-        (IRQ_SENSE_EDGE  | IRQ_POLARITY_POSITIVE),      /* Reserved IRQ */
-        (IRQ_SENSE_EDGE  | IRQ_POLARITY_POSITIVE),      /* Reserved IRQ */
-        (IRQ_SENSE_EDGE  | IRQ_POLARITY_POSITIVE),      /* DMA0 */
-        (IRQ_SENSE_EDGE  | IRQ_POLARITY_POSITIVE),      /* DMA1 */
-        (IRQ_SENSE_EDGE  | IRQ_POLARITY_POSITIVE),      /* DMA2 */
-        (IRQ_SENSE_EDGE  | IRQ_POLARITY_POSITIVE),      /* DMA3 */
-        (IRQ_SENSE_EDGE  | IRQ_POLARITY_POSITIVE),      /* UART0 */
-        (IRQ_SENSE_EDGE  | IRQ_POLARITY_POSITIVE),      /* UART1 */
-        (IRQ_SENSE_EDGE  | IRQ_POLARITY_POSITIVE),      /* I2C */
-        (IRQ_SENSE_EDGE  | IRQ_POLARITY_POSITIVE),      /* GPIO */
-        (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE),      /* GIGE0 */
-        (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE),      /* GIGE1 */
-        (IRQ_SENSE_EDGE  | IRQ_POLARITY_POSITIVE),      /* Reserved IRQ */
-        (IRQ_SENSE_EDGE  | IRQ_POLARITY_POSITIVE),      /* HLP */
-        (IRQ_SENSE_EDGE  | IRQ_POLARITY_POSITIVE),      /* SDC */
-        (IRQ_SENSE_EDGE  | IRQ_POLARITY_POSITIVE),      /* Processor IF */
-        (IRQ_SENSE_EDGE  | IRQ_POLARITY_POSITIVE),      /* Reserved IRQ */
-        (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE),      /* PCI/X block */
-};
+extern void tsi108_irq_cascade(unsigned int irq, struct irq_desc *desc,
+                            struct pt_regs *regs);
 
 int mpc7448_hpc2_exclude_device(u_char bus, u_char devfn)
 {
@@ -229,6 +194,8 @@ static void __init mpc7448_hpc2_init_IRQ(void)
 {
         struct mpic *mpic;
         phys_addr_t mpic_paddr = 0;
+        unsigned int cascade_pci_irq;
+        struct device_node *tsi_pci;
         struct device_node *tsi_pic;
 
         tsi_pic = of_find_node_by_type(NULL, "open-pic");
@@ -246,24 +213,31 @@ static void __init mpc7448_hpc2_init_IRQ(void)
         DBG("%s: tsi108pic phys_addr = 0x%x\n", __FUNCTION__,
             (u32) mpic_paddr);
 
-        mpic = mpic_alloc(mpic_paddr,
+        mpic = mpic_alloc(tsi_pic, mpic_paddr,
                         MPIC_PRIMARY | MPIC_BIG_ENDIAN | MPIC_WANTS_RESET |
                         MPIC_SPV_EOI | MPIC_MOD_ID(MPIC_ID_TSI108),
                         0, /* num_sources used */
-                        TSI108_IRQ_BASE,
                         0, /* num_sources used */
-                        NR_IRQS - 4 /* XXXX */,
-                        mpc7448_hpc2_pic_initsenses,
-                        sizeof(mpc7448_hpc2_pic_initsenses), "Tsi108_PIC");
+                        "Tsi108_PIC");
 
         BUG_ON(mpic == NULL); /* XXXX */
-
         mpic_init(mpic);
-        mpic_setup_cascade(IRQ_TSI108_PCI, tsi108_irq_cascade, mpic);
+
+        tsi_pci = of_find_node_by_type(NULL, "pci");
+        if (tsi_pci == 0) {
+                printk("%s: No tsi108 pci node found !\n", __FUNCTION__);
+                return;
+        }
+
+        cascade_pci_irq = irq_of_parse_and_map(tsi_pci, 0);
+        set_irq_data(cascade_pci_irq, mpic);
+        set_irq_chained_handler(cascade_pci_irq, tsi108_irq_cascade);
+
         tsi108_pci_int_init();
 
         /* Configure MPIC outputs to CPU0 */
         tsi108_write_reg(TSI108_MPIC_OFFSET + 0x30c, 0);
+        of_node_put(tsi_pic);
 }
 
 void mpc7448_hpc2_show_cpuinfo(struct seq_file *m)
@@ -320,6 +294,7 @@ static int mpc7448_machine_check_exception(struct pt_regs *regs)
         return 0;
 
 }
+
 define_machine(mpc7448_hpc2){
         .name                   = "MPC7448 HPC2",
         .probe                  = mpc7448_hpc2_probe,
diff --git a/arch/powerpc/platforms/powermac/bootx_init.c b/arch/powerpc/platforms/powermac/bootx_init.c
index 6a026c733f6a..9d73d0234c5d 100644
--- a/arch/powerpc/platforms/powermac/bootx_init.c
+++ b/arch/powerpc/platforms/powermac/bootx_init.c
@@ -411,8 +411,15 @@ static unsigned long __init bootx_flatten_dt(unsigned long start)
         DBG("End of boot params: %x\n", mem_end);
         rsvmap[0] = mem_start;
         rsvmap[1] = mem_end;
-        rsvmap[2] = 0;
-        rsvmap[3] = 0;
+        if (bootx_info->ramDisk) {
+                rsvmap[2] = ((unsigned long)bootx_info) + bootx_info->ramDisk;
+                rsvmap[3] = rsvmap[2] + bootx_info->ramDiskSize;
+                rsvmap[4] = 0;
+                rsvmap[5] = 0;
+        } else {
+                rsvmap[2] = 0;
+                rsvmap[3] = 0;
+        }
 
         return (unsigned long)hdr;
 }
@@ -543,12 +550,12 @@ void __init bootx_init(unsigned long r3, unsigned long r4)
          */
         if (bi->version < 5) {
                 space = bi->deviceTreeOffset + bi->deviceTreeSize;
-                if (bi->ramDisk)
+                if (bi->ramDisk >= space)
                         space = bi->ramDisk + bi->ramDiskSize;
         } else
                 space = bi->totalParamsSize;
 
-        bootx_printf("Total space used by parameters & ramdisk: %x \n", space);
+        bootx_printf("Total space used by parameters & ramdisk: 0x%x \n", space);
 
         /* New BootX will have flushed all TLBs and enters kernel with
          * MMU switched OFF, so this should not be useful anymore.
diff --git a/arch/powerpc/sysdev/fsl_soc.c b/arch/powerpc/sysdev/fsl_soc.c
index 12b65609c072..ef10bcf2d943 100644
--- a/arch/powerpc/sysdev/fsl_soc.c
+++ b/arch/powerpc/sysdev/fsl_soc.c
@@ -85,11 +85,8 @@ static int __init gfar_mdio_of_init(void)
                         mdio_data.irq[k] = -1;
 
                 while ((child = of_get_next_child(np, child)) != NULL) {
-                        if (child->n_intrs) {
-                                u32 *id =
-                                    (u32 *) get_property(child, "reg", NULL);
-                                mdio_data.irq[*id] = child->intrs[0].line;
-                        }
+                        u32 *id = get_property(child, "reg", NULL);
+                        mdio_data.irq[*id] = irq_of_parse_and_map(child, 0);
                 }
 
                 ret =
@@ -131,6 +128,7 @@ static int __init gfar_of_init(void)
                 char *model;
                 void *mac_addr;
                 phandle *ph;
+                int n_res = 1;
 
                 memset(r, 0, sizeof(r));
                 memset(&gfar_data, 0, sizeof(gfar_data));
@@ -139,8 +137,7 @@ static int __init gfar_of_init(void)
                 if (ret)
                         goto err;
 
-                r[1].start = np->intrs[0].line;
-                r[1].end = np->intrs[0].line;
+                r[1].start = r[1].end = irq_of_parse_and_map(np, 0);
                 r[1].flags = IORESOURCE_IRQ;
 
                 model = get_property(np, "model", NULL);
@@ -150,19 +147,19 @@ static int __init gfar_of_init(void)
                         r[1].name = gfar_tx_intr;
 
                         r[2].name = gfar_rx_intr;
-                        r[2].start = np->intrs[1].line;
-                        r[2].end = np->intrs[1].line;
+                        r[2].start = r[2].end = irq_of_parse_and_map(np, 1);
                         r[2].flags = IORESOURCE_IRQ;
 
                         r[3].name = gfar_err_intr;
-                        r[3].start = np->intrs[2].line;
-                        r[3].end = np->intrs[2].line;
+                        r[3].start = r[3].end = irq_of_parse_and_map(np, 2);
                         r[3].flags = IORESOURCE_IRQ;
+
+                        n_res += 2;
                 }
 
                 gfar_dev =
                     platform_device_register_simple("fsl-gianfar", i, &r[0],
-                                                    np->n_intrs + 1);
+                                                    n_res + 1);
 
                 if (IS_ERR(gfar_dev)) {
                         ret = PTR_ERR(gfar_dev);
@@ -259,8 +256,7 @@ static int __init fsl_i2c_of_init(void)
                 if (ret)
                         goto err;
 
-                r[1].start = np->intrs[0].line;
-                r[1].end = np->intrs[0].line;
+                r[1].start = r[1].end = irq_of_parse_and_map(np, 0);
                 r[1].flags = IORESOURCE_IRQ;
 
                 i2c_dev = platform_device_register_simple("fsl-i2c", i, r, 2);
@@ -396,8 +392,7 @@ static int __init fsl_usb_of_init(void)
                 if (ret)
                         goto err;
 
-                r[1].start = np->intrs[0].line;
-                r[1].end = np->intrs[0].line;
+                r[1].start = r[1].end = irq_of_parse_and_map(np, 0);
                 r[1].flags = IORESOURCE_IRQ;
 
                 usb_dev_mph =
@@ -445,8 +440,7 @@ static int __init fsl_usb_of_init(void)
                 if (ret)
                         goto unreg_mph;
 
-                r[1].start = np->intrs[0].line;
-                r[1].end = np->intrs[0].line;
+                r[1].start = r[1].end = irq_of_parse_and_map(np, 0);
                 r[1].flags = IORESOURCE_IRQ;
 
                 usb_dev_dr =
diff --git a/arch/powerpc/sysdev/tsi108_dev.c b/arch/powerpc/sysdev/tsi108_dev.c
index 26a0cc820cde..f3038461d4c0 100644
--- a/arch/powerpc/sysdev/tsi108_dev.c
+++ b/arch/powerpc/sysdev/tsi108_dev.c
@@ -93,13 +93,15 @@ static int __init tsi108_eth_of_init(void)
                         goto err;
 
                 r[1].name = "tx";
-                r[1].start = np->intrs[0].line;
-                r[1].end = np->intrs[0].line;
+                r[1].start = irq_of_parse_and_map(np, 0);
+                r[1].end = irq_of_parse_and_map(np, 0);
                 r[1].flags = IORESOURCE_IRQ;
+                DBG("%s: name:start->end = %s:0x%lx-> 0x%lx\n",
+                        __FUNCTION__,r[1].name, r[1].start, r[1].end);
 
                 tsi_eth_dev =
                     platform_device_register_simple("tsi-ethernet", i, &r[0],
-                                                    np->n_intrs + 1);
+                                                    1);
 
                 if (IS_ERR(tsi_eth_dev)) {
                         ret = PTR_ERR(tsi_eth_dev);
@@ -127,7 +129,7 @@ static int __init tsi108_eth_of_init(void)
                 tsi_eth_data.regs = r[0].start;
                 tsi_eth_data.phyregs = res.start;
                 tsi_eth_data.phy = *phy_id;
-                tsi_eth_data.irq_num = np->intrs[0].line;
+                tsi_eth_data.irq_num = irq_of_parse_and_map(np, 0);
                 of_node_put(phy);
                 ret =
                     platform_device_add_data(tsi_eth_dev, &tsi_eth_data,
diff --git a/arch/powerpc/sysdev/tsi108_pci.c b/arch/powerpc/sysdev/tsi108_pci.c
index 3265d54c82ed..2ab06ed3ae73 100644
--- a/arch/powerpc/sysdev/tsi108_pci.c
+++ b/arch/powerpc/sysdev/tsi108_pci.c
@@ -26,7 +26,6 @@
 #include <linux/irq.h>
 #include <linux/interrupt.h>
 
-
 #include <asm/byteorder.h>
 #include <asm/io.h>
 #include <asm/irq.h>
@@ -228,7 +227,7 @@ int __init tsi108_setup_pci(struct device_node *dev)
 
         (hose)->ops = &tsi108_direct_pci_ops;
 
-        printk(KERN_INFO "Found tsi108 PCI host bridge at 0x%08lx. "
+        printk(KERN_INFO "Found tsi108 PCI host bridge at 0x%08x. "
                "Firmware bus number: %d->%d\n",
                rsrc.start, hose->first_busno, hose->last_busno);
 
@@ -278,7 +277,7 @@ static void init_pci_source(void)
         mb();
 }
 
-static inline int get_pci_source(void)
+static inline unsigned int get_pci_source(void)
 {
         u_int temp = 0;
         int irq = -1;
@@ -371,12 +370,12 @@ static void tsi108_pci_irq_end(u_int irq)
  * Interrupt controller descriptor for cascaded PCI interrupt controller.
  */
 
-struct hw_interrupt_type tsi108_pci_irq = {
+static struct irq_chip tsi108_pci_irq = {
         .typename = "tsi108_PCI_int",
-        .enable = tsi108_pci_irq_enable,
-        .disable = tsi108_pci_irq_disable,
+        .mask = tsi108_pci_irq_disable,
         .ack = tsi108_pci_irq_ack,
         .end = tsi108_pci_irq_end,
+        .unmask = tsi108_pci_irq_enable,
 };
 
 /*
@@ -399,14 +398,18 @@ void __init tsi108_pci_int_init(void)
         DBG("Tsi108_pci_int_init: initializing PCI interrupts\n");
 
         for (i = 0; i < NUM_PCI_IRQS; i++) {
-                irq_desc[i + IRQ_PCI_INTAD_BASE].handler = &tsi108_pci_irq;
+                irq_desc[i + IRQ_PCI_INTAD_BASE].chip = &tsi108_pci_irq;
                 irq_desc[i + IRQ_PCI_INTAD_BASE].status |= IRQ_LEVEL;
         }
 
         init_pci_source();
 }
 
-int tsi108_irq_cascade(struct pt_regs *regs, void *unused)
+void tsi108_irq_cascade(unsigned int irq, struct irq_desc *desc,
+                            struct pt_regs *regs)
 {
-        return get_pci_source();
+        unsigned int cascade_irq = get_pci_source();
+        if (cascade_irq != NO_IRQ)
+                generic_handle_irq(cascade_irq, regs);
+        desc->chip->eoi(irq);
 }
diff --git a/arch/sparc/kernel/setup.c b/arch/sparc/kernel/setup.c
index 35488d6c7457..0251cab4708b 100644
--- a/arch/sparc/kernel/setup.c
+++ b/arch/sparc/kernel/setup.c
@@ -348,9 +348,9 @@ void __init setup_arch(char **cmdline_p)
         init_mm.context = (unsigned long) NO_CONTEXT;
         init_task.thread.kregs = &fake_swapper_regs;
 
-        smp_setup_cpu_possible_map();
-
         paging_init();
+
+        smp_setup_cpu_possible_map();
 }
 
 static int __init set_preferred_console(void)
diff --git a/arch/sparc/kernel/smp.c b/arch/sparc/kernel/smp.c
index e311ade1b490..276f22881d0f 100644
--- a/arch/sparc/kernel/smp.c
+++ b/arch/sparc/kernel/smp.c
@@ -34,7 +34,6 @@
 #include <asm/tlbflush.h>
 #include <asm/cpudata.h>
 
-volatile int smp_processors_ready = 0;
 int smp_num_cpus = 1;
 volatile unsigned long cpu_callin_map[NR_CPUS] __initdata = {0,};
 unsigned char boot_cpu_id = 0;
diff --git a/arch/sparc/kernel/sun4d_smp.c b/arch/sparc/kernel/sun4d_smp.c
index ba843f6a2832..3ff4edd32815 100644
--- a/arch/sparc/kernel/sun4d_smp.c
+++ b/arch/sparc/kernel/sun4d_smp.c
@@ -42,7 +42,7 @@ extern ctxd_t *srmmu_ctx_table_phys;
 
 extern void calibrate_delay(void);
 
-extern volatile int smp_processors_ready;
+static volatile int smp_processors_ready = 0;
 static int smp_highest_cpu;
 extern volatile unsigned long cpu_callin_map[NR_CPUS];
 extern cpuinfo_sparc cpu_data[NR_CPUS];
diff --git a/arch/sparc/kernel/sun4m_smp.c b/arch/sparc/kernel/sun4m_smp.c
index 3b32096134aa..7d4a649138f6 100644
--- a/arch/sparc/kernel/sun4m_smp.c
+++ b/arch/sparc/kernel/sun4m_smp.c
@@ -39,7 +39,6 @@ extern ctxd_t *srmmu_ctx_table_phys;
 
 extern void calibrate_delay(void);
 
-extern volatile int smp_processors_ready;
 extern volatile unsigned long cpu_callin_map[NR_CPUS];
 extern unsigned char boot_cpu_id;
 
@@ -217,7 +216,6 @@ void __init smp4m_smp_done(void)
         }
 
         /* Ok, they are spinning and ready to go. */
-        smp_processors_ready = 1;
 }
 
 /* At each hardware IRQ, we get this called to forward IRQ reception
diff --git a/block/cfq-iosched.c b/block/cfq-iosched.c
index aae3123bf3ee..3a3aee08ec5f 100644
--- a/block/cfq-iosched.c
+++ b/block/cfq-iosched.c
@@ -1561,7 +1561,7 @@ restart:
                 /* ->key must be copied to avoid race with cfq_exit_queue() */
                 k = __cic->key;
                 if (unlikely(!k)) {
-                        cfq_drop_dead_cic(ioc, cic);
+                        cfq_drop_dead_cic(ioc, __cic);
                         goto restart;
                 }
 
diff --git a/block/elevator.c b/block/elevator.c
index bc7baeec0d10..9b72dc7c8a5c 100644
--- a/block/elevator.c
+++ b/block/elevator.c
@@ -765,7 +765,8 @@ void elv_unregister(struct elevator_type *e)
                 read_lock(&tasklist_lock);
                 do_each_thread(g, p) {
                         task_lock(p);
-                        e->ops.trim(p->io_context);
+                        if (p->io_context)
+                                e->ops.trim(p->io_context);
                         task_unlock(p);
                 } while_each_thread(g, p);
                 read_unlock(&tasklist_lock);
diff --git a/block/ll_rw_blk.c b/block/ll_rw_blk.c
index 61d6b3c65b66..ddd9253f9d55 100644
--- a/block/ll_rw_blk.c
+++ b/block/ll_rw_blk.c
@@ -3628,6 +3628,8 @@ struct io_context *current_io_context(gfp_t gfp_flags)
                 ret->nr_batch_requests = 0; /* because this is 0 */
                 ret->aic = NULL;
                 ret->cic_root.rb_node = NULL;
+                /* make sure set_task_ioprio() sees the settings above */
+                smp_wmb();
                 tsk->io_context = ret;
         }
 
diff --git a/drivers/acpi/ac.c b/drivers/acpi/ac.c
index 96309b9660da..11abc7bf777e 100644
--- a/drivers/acpi/ac.c
+++ b/drivers/acpi/ac.c
@@ -285,6 +285,8 @@ static int __init acpi_ac_init(void)
 {
         int result;
 
+        if (acpi_disabled)
+                return -ENODEV;
 
         acpi_ac_dir = acpi_lock_ac_dir();
         if (!acpi_ac_dir)
diff --git a/drivers/acpi/acpi_memhotplug.c b/drivers/acpi/acpi_memhotplug.c
index b0d4b147b19e..1dda370f402b 100644
--- a/drivers/acpi/acpi_memhotplug.c
+++ b/drivers/acpi/acpi_memhotplug.c
@@ -484,10 +484,8 @@ acpi_memory_register_notify_handler(acpi_handle handle,
 
 
         status = is_memory_device(handle);
-        if (ACPI_FAILURE(status)){
-                ACPI_EXCEPTION((AE_INFO, status, "handle is no memory device"));
+        if (ACPI_FAILURE(status))
                 return AE_OK;   /* continue */
-        }
 
         status = acpi_install_notify_handler(handle, ACPI_SYSTEM_NOTIFY,
                                              acpi_memory_device_notify, NULL);
@@ -503,10 +501,8 @@ acpi_memory_deregister_notify_handler(acpi_handle handle,
 
 
         status = is_memory_device(handle);
-        if (ACPI_FAILURE(status)){
-                ACPI_EXCEPTION((AE_INFO, status, "handle is no memory device"));
+        if (ACPI_FAILURE(status))
                 return AE_OK;   /* continue */
-        }
 
         status = acpi_remove_notify_handler(handle,
                                             ACPI_SYSTEM_NOTIFY,
diff --git a/drivers/acpi/battery.c b/drivers/acpi/battery.c
index 6e5221707d97..9810e2a55d0a 100644
--- a/drivers/acpi/battery.c
+++ b/drivers/acpi/battery.c
@@ -757,6 +757,9 @@ static int __init acpi_battery_init(void)
 {
         int result;
 
+        if (acpi_disabled)
+                return -ENODEV;
+
         acpi_battery_dir = acpi_lock_battery_dir();
         if (!acpi_battery_dir)
                 return -ENODEV;
diff --git a/drivers/acpi/bus.c b/drivers/acpi/bus.c
index b2977695e120..279c4bac92e5 100644
--- a/drivers/acpi/bus.c
+++ b/drivers/acpi/bus.c
@@ -25,6 +25,7 @@
 #include <linux/module.h>
 #include <linux/init.h>
 #include <linux/ioport.h>
+#include <linux/kernel.h>
 #include <linux/list.h>
 #include <linux/sched.h>
 #include <linux/pm.h>
@@ -68,7 +69,8 @@ int acpi_bus_get_device(acpi_handle handle, struct acpi_device **device)
 
         status = acpi_get_data(handle, acpi_bus_data_handler, (void **)device);
         if (ACPI_FAILURE(status) || !*device) {
-                ACPI_EXCEPTION((AE_INFO, status, "No context for object [%p]", handle));
+                ACPI_DEBUG_PRINT((ACPI_DB_INFO, "No context for object [%p]\n",
+                                  handle));
                 return -ENODEV;
         }
 
@@ -192,7 +194,7 @@ int acpi_bus_set_power(acpi_handle handle, int state)
         /* Make sure this is a valid target state */
 
         if (!device->flags.power_manageable) {
-                ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Device `[%s]' is not power manageable",
+                ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Device `[%s]' is not power manageable\n",
                                 device->kobj.name));
                 return -ENODEV;
         }
@@ -738,7 +740,10 @@ static int __init acpi_init(void)
                 return -ENODEV;
         }
 
-        firmware_register(&acpi_subsys);
+        result = firmware_register(&acpi_subsys);
+        if (result < 0)
+                printk(KERN_WARNING "%s: firmware_register error: %d\n",
+                        __FUNCTION__, result);
 
         result = acpi_bus_init();
 
diff --git a/drivers/acpi/hotkey.c b/drivers/acpi/hotkey.c
index 32c9d88fd196..1ba2db671865 100644
--- a/drivers/acpi/hotkey.c
+++ b/drivers/acpi/hotkey.c
@@ -91,6 +91,14 @@ enum {
         HK_EVENT_ENTERRING_S5,
 };
 
+enum conf_entry_enum {
+        bus_handle = 0,
+        bus_method = 1,
+        action_handle = 2,
+        method = 3,
+        LAST_CONF_ENTRY
+};
+
 /*  procdir we use */
 static struct proc_dir_entry *hotkey_proc_dir;
 static struct proc_dir_entry *hotkey_config;
@@ -244,19 +252,15 @@ static int hotkey_info_open_fs(struct inode *inode, struct file *file)
 
 static char *format_result(union acpi_object *object)
 {
-        char *buf = NULL;
-
-        buf = (char *)kmalloc(RESULT_STR_LEN, GFP_KERNEL);
-        if (buf)
-                memset(buf, 0, RESULT_STR_LEN);
-        else
-                goto do_fail;
+        char *buf;
 
+        buf = kzalloc(RESULT_STR_LEN, GFP_KERNEL);
+        if (!buf)
+                return NULL;
         /* Now, just support integer type */
         if (object->type == ACPI_TYPE_INTEGER)
                 sprintf(buf, "%d\n", (u32) object->integer.value);
-      do_fail:
-        return (buf);
+        return buf;
 }
 
 static int hotkey_polling_seq_show(struct seq_file *seq, void *offset)
@@ -486,98 +490,102 @@ static void free_hotkey_device(union acpi_hotkey *key)
 
 static void free_hotkey_buffer(union acpi_hotkey *key)
 {
+        /* key would never be null, action method could be */
         kfree(key->event_hotkey.action_method);
 }
 
 static void free_poll_hotkey_buffer(union acpi_hotkey *key)
 {
+        /* key would never be null, others could be*/
         kfree(key->poll_hotkey.action_method);
         kfree(key->poll_hotkey.poll_method);
         kfree(key->poll_hotkey.poll_result);
 }
 static int
-init_hotkey_device(union acpi_hotkey *key, char *bus_str, char *action_str,
-                   char *method, int std_num, int external_num)
+init_hotkey_device(union acpi_hotkey *key, char **config_entry,
+                   int std_num, int external_num)
 {
         acpi_handle tmp_handle;
         acpi_status status = AE_OK;
 
-
         if (std_num < 0 || IS_POLL(std_num) || !key)
                 goto do_fail;
 
-        if (!bus_str || !action_str || !method)
+        if (!config_entry[bus_handle] || !config_entry[action_handle]
+                        || !config_entry[method])
                 goto do_fail;
 
         key->link.hotkey_type = ACPI_HOTKEY_EVENT;
         key->link.hotkey_standard_num = std_num;
         key->event_hotkey.flag = 0;
-        key->event_hotkey.action_method = method;
+        key->event_hotkey.action_method = config_entry[method];
 
-        status =
-            acpi_get_handle(NULL, bus_str, &(key->event_hotkey.bus_handle));
+        status = acpi_get_handle(NULL, config_entry[bus_handle],
+                           &(key->event_hotkey.bus_handle));
         if (ACPI_FAILURE(status))
-                goto do_fail;
+                goto do_fail_zero;
         key->event_hotkey.external_hotkey_num = external_num;
-        status =
-            acpi_get_handle(NULL, action_str,
+        status = acpi_get_handle(NULL, config_entry[action_handle],
                             &(key->event_hotkey.action_handle));
         if (ACPI_FAILURE(status))
-                goto do_fail;
+                goto do_fail_zero;
         status = acpi_get_handle(key->event_hotkey.action_handle,
-                                 method, &tmp_handle);
+                                 config_entry[method], &tmp_handle);
         if (ACPI_FAILURE(status))
-                goto do_fail;
+                goto do_fail_zero;
         return AE_OK;
-      do_fail:
+do_fail_zero:
+        key->event_hotkey.action_method = NULL;
+do_fail:
         return -ENODEV;
 }
 
 static int
-init_poll_hotkey_device(union acpi_hotkey *key,
-                        char *poll_str,
-                        char *poll_method,
-                        char *action_str, char *action_method, int std_num)
+init_poll_hotkey_device(union acpi_hotkey *key, char **config_entry,
+                        int std_num)
 {
         acpi_status status = AE_OK;
         acpi_handle tmp_handle;
 
-
         if (std_num < 0 || IS_EVENT(std_num) || !key)
                 goto do_fail;
-
-        if (!poll_str || !poll_method || !action_str || !action_method)
+        if (!config_entry[bus_handle] ||!config_entry[bus_method] ||
+                !config_entry[action_handle] || !config_entry[method])
                 goto do_fail;
 
         key->link.hotkey_type = ACPI_HOTKEY_POLLING;
         key->link.hotkey_standard_num = std_num;
         key->poll_hotkey.flag = 0;
-        key->poll_hotkey.poll_method = poll_method;
-        key->poll_hotkey.action_method = action_method;
+        key->poll_hotkey.poll_method = config_entry[bus_method];
+        key->poll_hotkey.action_method = config_entry[method];
 
-        status =
-            acpi_get_handle(NULL, poll_str, &(key->poll_hotkey.poll_handle));
+        status = acpi_get_handle(NULL, config_entry[bus_handle],
+                      &(key->poll_hotkey.poll_handle));
         if (ACPI_FAILURE(status))
-                goto do_fail;
+                goto do_fail_zero;
         status = acpi_get_handle(key->poll_hotkey.poll_handle,
-                                 poll_method, &tmp_handle);
+                                 config_entry[bus_method], &tmp_handle);
         if (ACPI_FAILURE(status))
-                goto do_fail;
+                goto do_fail_zero;
         status =
-            acpi_get_handle(NULL, action_str,
+            acpi_get_handle(NULL, config_entry[action_handle],
                             &(key->poll_hotkey.action_handle));
         if (ACPI_FAILURE(status))
-                goto do_fail;
+                goto do_fail_zero;
         status = acpi_get_handle(key->poll_hotkey.action_handle,
-                                 action_method, &tmp_handle);
+                                 config_entry[method], &tmp_handle);
         if (ACPI_FAILURE(status))
-                goto do_fail;
+                goto do_fail_zero;
         key->poll_hotkey.poll_result =
             (union acpi_object *)kmalloc(sizeof(union acpi_object), GFP_KERNEL);
         if (!key->poll_hotkey.poll_result)
-                goto do_fail;
+                goto do_fail_zero;
         return AE_OK;
-      do_fail:
+
+do_fail_zero:
+        key->poll_hotkey.poll_method = NULL;
+        key->poll_hotkey.action_method = NULL;
+do_fail:
         return -ENODEV;
 }
 
@@ -652,17 +660,18 @@ static int hotkey_poll_config_seq_show(struct seq_file *seq, void *offset)
 }
 
 static int
-get_parms(char *config_record,
-          int *cmd,
-          char **bus_handle,
-          char **bus_method,
-          char **action_handle,
-          char **method, int *internal_event_num, int *external_event_num)
+get_parms(char *config_record, int *cmd, char **config_entry,
+               int *internal_event_num, int *external_event_num)
 {
+/* the format of *config_record =
+ * "1:\d+:*" : "cmd:internal_event_num"
+ * "\d+:\w+:\w+:\w+:\w+:\d+:\d+" :
+ * "cmd:bus_handle:bus_method:action_handle:method:internal_event_num:external_event_num"
+ */
         char *tmp, *tmp1, count;
+        int i;
 
         sscanf(config_record, "%d", cmd);
-
         if (*cmd == 1) {
                 if (sscanf(config_record, "%d:%d", cmd, internal_event_num) !=
                     2)
@@ -674,59 +683,27 @@ get_parms(char *config_record,
         if (!tmp)
                 goto do_fail;
         tmp++;
-        tmp1 = strchr(tmp, ':');
-        if (!tmp1)
-                goto do_fail;
-
-        count = tmp1 - tmp;
-        *bus_handle = (char *)kmalloc(count + 1, GFP_KERNEL);
-        if (!*bus_handle)
-                goto do_fail;
-        strncpy(*bus_handle, tmp, count);
-        *(*bus_handle + count) = 0;
-
-        tmp = tmp1;
-        tmp++;
-        tmp1 = strchr(tmp, ':');
-        if (!tmp1)
-                goto do_fail;
-        count = tmp1 - tmp;
-        *bus_method = (char *)kmalloc(count + 1, GFP_KERNEL);
-        if (!*bus_method)
-                goto do_fail;
-        strncpy(*bus_method, tmp, count);
-        *(*bus_method + count) = 0;
-
-        tmp = tmp1;
-        tmp++;
-        tmp1 = strchr(tmp, ':');
-        if (!tmp1)
-                goto do_fail;
-        count = tmp1 - tmp;
-        *action_handle = (char *)kmalloc(count + 1, GFP_KERNEL);
-        if (!*action_handle)
-                goto do_fail;
-        strncpy(*action_handle, tmp, count);
-        *(*action_handle + count) = 0;
-
-        tmp = tmp1;
-        tmp++;
-        tmp1 = strchr(tmp, ':');
-        if (!tmp1)
-                goto do_fail;
-        count = tmp1 - tmp;
-        *method = (char *)kmalloc(count + 1, GFP_KERNEL);
-        if (!*method)
-                goto do_fail;
-        strncpy(*method, tmp, count);
-        *(*method + count) = 0;
-
-        if (sscanf(tmp1 + 1, "%d:%d", internal_event_num, external_event_num) <=
-            0)
-                goto do_fail;
-
-        return 6;
-      do_fail:
+        for (i = 0; i < LAST_CONF_ENTRY; i++) {
+                tmp1 = strchr(tmp, ':');
+                if (!tmp1) {
+                        goto do_fail;
+                }
+                count = tmp1 - tmp;
+                config_entry[i] = kzalloc(count + 1, GFP_KERNEL);
+                if (!config_entry[i])
+                        goto handle_failure;
+                strncpy(config_entry[i], tmp, count);
+                tmp = tmp1 + 1;
+        }
+        if (sscanf(tmp, "%d:%d", internal_event_num, external_event_num) <= 0)
+                goto handle_failure;
+        if (!IS_OTHERS(*internal_event_num)) {
+                return 6;
+        }
+handle_failure:
+        while (i-- > 0)
+                kfree(config_entry[i]);
+do_fail:
         return -1;
 }
 
@@ -736,50 +713,34 @@ static ssize_t hotkey_write_config(struct file *file,
                                    size_t count, loff_t * data)
 {
         char *config_record = NULL;
-        char *bus_handle = NULL;
-        char *bus_method = NULL;
-        char *action_handle = NULL;
-        char *method = NULL;
+        char *config_entry[LAST_CONF_ENTRY];
         int cmd, internal_event_num, external_event_num;
         int ret = 0;
-        union acpi_hotkey *key = NULL;
+        union acpi_hotkey *key = kzalloc(sizeof(union acpi_hotkey), GFP_KERNEL);
 
+        if (!key)
+                return -ENOMEM;
 
-        config_record = (char *)kmalloc(count + 1, GFP_KERNEL);
-        if (!config_record)
+        config_record = kzalloc(count + 1, GFP_KERNEL);
+        if (!config_record) {
+                kfree(key);
                 return -ENOMEM;
+        }
 
         if (copy_from_user(config_record, buffer, count)) {
                 kfree(config_record);
+                kfree(key);
                 printk(KERN_ERR PREFIX "Invalid data\n");
                 return -EINVAL;
         }
-        config_record[count] = 0;
-
-        ret = get_parms(config_record,
-                        &cmd,
-                        &bus_handle,
-                        &bus_method,
-                        &action_handle,
-                        &method, &internal_event_num, &external_event_num);
-
+        ret = get_parms(config_record, &cmd, config_entry,
+                       &internal_event_num, &external_event_num);
         kfree(config_record);
-        if (IS_OTHERS(internal_event_num))
-                goto do_fail;
         if (ret != 6) {
-              do_fail:
-                kfree(bus_handle);
-                kfree(bus_method);
-                kfree(action_handle);
-                kfree(method);
                 printk(KERN_ERR PREFIX "Invalid data format ret=%d\n", ret);
                 return -EINVAL;
         }
 
-        key = kmalloc(sizeof(union acpi_hotkey), GFP_KERNEL);
-        if (!key)
-                goto do_fail;
-        memset(key, 0, sizeof(union acpi_hotkey));
         if (cmd == 1) {
                 union acpi_hotkey *tmp = NULL;
                 tmp = get_hotkey_by_event(&global_hotkey_list,
@@ -791,34 +752,19 @@ static ssize_t hotkey_write_config(struct file *file,
                 goto cont_cmd;
         }
         if (IS_EVENT(internal_event_num)) {
-                kfree(bus_method);
-                ret = init_hotkey_device(key, bus_handle, action_handle, method,
-                                         internal_event_num,
-                                         external_event_num);
-        } else
-                ret = init_poll_hotkey_device(key, bus_handle, bus_method,
-                                              action_handle, method,
-                                              internal_event_num);
-        if (ret) {
-                kfree(bus_handle);
-                kfree(action_handle);
-                if (IS_EVENT(internal_event_num))
-                        free_hotkey_buffer(key);
-                else
-                        free_poll_hotkey_buffer(key);
-                kfree(key);
-                printk(KERN_ERR PREFIX "Invalid hotkey\n");
-                return -EINVAL;
+                if (init_hotkey_device(key, config_entry,
+                        internal_event_num, external_event_num))
+                        goto init_hotkey_fail;
+        } else {
+                if (init_poll_hotkey_device(key, config_entry,
+                               internal_event_num))
+                        goto init_poll_hotkey_fail;
         }
-
-      cont_cmd:
-        kfree(bus_handle);
-        kfree(action_handle);
-
+cont_cmd:
         switch (cmd) {
         case 0:
-                if (get_hotkey_by_event
-                    (&global_hotkey_list, key->link.hotkey_standard_num))
+                if (get_hotkey_by_event(&global_hotkey_list,
+                                key->link.hotkey_standard_num))
                         goto fail_out;
                 else
                         hotkey_add(key);
@@ -827,6 +773,7 @@ static ssize_t hotkey_write_config(struct file *file,
                 hotkey_remove(key);
                 break;
         case 2:
+                /* key is kfree()ed if matched*/
                 if (hotkey_update(key))
                         goto fail_out;
                 break;
@@ -835,11 +782,22 @@ static ssize_t hotkey_write_config(struct file *file,
                 break;
         }
         return count;
-      fail_out:
-        if (IS_EVENT(internal_event_num))
-                free_hotkey_buffer(key);
-        else
-                free_poll_hotkey_buffer(key);
+
+init_poll_hotkey_fail:          /* failed init_poll_hotkey_device */
+        kfree(config_entry[bus_method]);
+        config_entry[bus_method] = NULL;
+init_hotkey_fail:               /* failed init_hotkey_device */
+        kfree(config_entry[method]);
+fail_out:
+        kfree(config_entry[bus_handle]);
+        kfree(config_entry[action_handle]);
+        /* No double free since elements =NULL for error cases */
+        if (IS_EVENT(internal_event_num)) {
+                if (config_entry[bus_method])
+                        kfree(config_entry[bus_method]);
+                free_hotkey_buffer(key);        /* frees [method] */
+        } else
+                free_poll_hotkey_buffer(key);  /* frees [bus_method]+[method] */
         kfree(key);
         printk(KERN_ERR PREFIX "invalid key\n");
         return -EINVAL;
@@ -923,10 +881,9 @@ static ssize_t hotkey_execute_aml_method(struct file *file,
         union acpi_hotkey *key;
 
 
-        arg = (char *)kmalloc(count + 1, GFP_KERNEL);
+        arg = kzalloc(count + 1, GFP_KERNEL);
         if (!arg)
                 return -ENOMEM;
-        arg[count] = 0;
 
         if (copy_from_user(arg, buffer, count)) {
                 kfree(arg);
diff --git a/drivers/acpi/i2c_ec.c b/drivers/acpi/i2c_ec.c
index 84239d51dc0c..6809c283ec58 100644
--- a/drivers/acpi/i2c_ec.c
+++ b/drivers/acpi/i2c_ec.c
@@ -330,7 +330,7 @@ static int acpi_ec_hc_add(struct acpi_device *device)
         status = acpi_evaluate_integer(ec_hc->handle, "_EC", NULL, &val);
         if (ACPI_FAILURE(status)) {
                 ACPI_DEBUG_PRINT((ACPI_DB_WARN, "Error obtaining _EC\n"));
-                kfree(ec_hc->smbus);
+                kfree(ec_hc);
                 kfree(smbus);
                 return -EIO;
         }
diff --git a/drivers/acpi/osl.c b/drivers/acpi/osl.c
index b7d1514cd199..507f051d1cef 100644
--- a/drivers/acpi/osl.c
+++ b/drivers/acpi/osl.c
@@ -746,6 +746,16 @@ acpi_status acpi_os_wait_semaphore(acpi_handle handle, u32 units, u16 timeout)
         ACPI_DEBUG_PRINT((ACPI_DB_MUTEX, "Waiting for semaphore[%p|%d|%d]\n",
                           handle, units, timeout));
 
+        /*
+         * This can be called during resume with interrupts off.
+         * Like boot-time, we should be single threaded and will
+         * always get the lock if we try -- timeout or not.
+         * If this doesn't succeed, then we will oops courtesy of
+         * might_sleep() in down().
+         */
+        if (!down_trylock(sem))
+                return AE_OK;
+
         switch (timeout) {
                 /*
                  * No Wait:
diff --git a/drivers/acpi/sbs.c b/drivers/acpi/sbs.c
index db7b350a5035..62bef0b3b614 100644
--- a/drivers/acpi/sbs.c
+++ b/drivers/acpi/sbs.c
@@ -1714,6 +1714,9 @@ static int __init acpi_sbs_init(void)
 {
         int result = 0;
 
+        if (acpi_disabled)
+                return -ENODEV;
+
         init_MUTEX(&sbs_sem);
 
         if (capacity_mode != DEF_CAPACITY_UNIT
diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c
index 5fcb50c7b778..698a1540e303 100644
--- a/drivers/acpi/scan.c
+++ b/drivers/acpi/scan.c
@@ -4,6 +4,7 @@
 
 #include <linux/module.h>
 #include <linux/init.h>
+#include <linux/kernel.h>
 #include <linux/acpi.h>
 
 #include <acpi/acpi_drivers.h>
@@ -113,6 +114,8 @@ static struct kset acpi_namespace_kset = {
 static void acpi_device_register(struct acpi_device *device,
                                  struct acpi_device *parent)
 {
+        int err;
+
         /*
          * Linkage
          * -------
@@ -138,7 +141,10 @@ static void acpi_device_register(struct acpi_device *device,
                 device->kobj.parent = &parent->kobj;
         device->kobj.ktype = &ktype_acpi_ns;
         device->kobj.kset = &acpi_namespace_kset;
-        kobject_register(&device->kobj);
+        err = kobject_register(&device->kobj);
+        if (err < 0)
+                printk(KERN_WARNING "%s: kobject_register error: %d\n",
+                        __FUNCTION__, err);
         create_sysfs_device_files(device);
 }
 
@@ -1450,7 +1456,9 @@ static int __init acpi_scan_init(void)
         if (acpi_disabled)
                 return 0;
 
-        kset_register(&acpi_namespace_kset);
+        result = kset_register(&acpi_namespace_kset);
+        if (result < 0)
+                printk(KERN_ERR PREFIX "kset_register error: %d\n", result);
 
         result = bus_register(&acpi_bus_type);
         if (result) {
diff --git a/drivers/acpi/utils.c b/drivers/acpi/utils.c
index f48227f4c8c9..d0d84c43a9d4 100644
--- a/drivers/acpi/utils.c
+++ b/drivers/acpi/utils.c
@@ -262,7 +262,7 @@ acpi_evaluate_integer(acpi_handle handle,
         if (!data)
                 return AE_BAD_PARAMETER;
 
-        element = kmalloc(sizeof(union acpi_object), GFP_KERNEL);
+        element = kmalloc(sizeof(union acpi_object), irqs_disabled() ? GFP_ATOMIC: GFP_KERNEL);
         if (!element)
                 return AE_NO_MEMORY;
 
diff --git a/drivers/base/node.c b/drivers/base/node.c
index d7de1753e094..e9b0957f15d1 100644
--- a/drivers/base/node.c
+++ b/drivers/base/node.c
@@ -64,7 +64,7 @@ static ssize_t node_read_meminfo(struct sys_device * dev, char * buf)
                        "Node %d Mapped:       %8lu kB\n"
                        "Node %d AnonPages:    %8lu kB\n"
                        "Node %d PageTables:   %8lu kB\n"
-                       "Node %d NFS Unstable: %8lu kB\n"
+                       "Node %d NFS_Unstable: %8lu kB\n"
                        "Node %d Bounce:       %8lu kB\n"
                        "Node %d Slab:         %8lu kB\n",
                        nid, K(i.totalram),
diff --git a/drivers/cdrom/gscd.c b/drivers/cdrom/gscd.c
index b6ee50a2916d..fa7082489765 100644
--- a/drivers/cdrom/gscd.c
+++ b/drivers/cdrom/gscd.c
@@ -266,7 +266,7 @@ repeat:
                 goto out;
 
         if (req->cmd != READ) {
-                printk("GSCD: bad cmd %lu\n", rq_data_dir(req));
+                printk("GSCD: bad cmd %u\n", rq_data_dir(req));
                 end_request(req, 0);
                 goto repeat;
         }
diff --git a/drivers/char/moxa.c b/drivers/char/moxa.c
index 4ea7bd5f4f56..a369dd6877d8 100644
--- a/drivers/char/moxa.c
+++ b/drivers/char/moxa.c
@@ -142,6 +142,7 @@ typedef struct _moxa_board_conf {
 
 static moxa_board_conf moxa_boards[MAX_BOARDS];
 static void __iomem *moxaBaseAddr[MAX_BOARDS];
+static int loadstat[MAX_BOARDS];
 
 struct moxa_str {
         int type;
@@ -1688,6 +1689,8 @@ int MoxaDriverPoll(void)
         if (moxaCard == 0)
                 return (-1);
         for (card = 0; card < MAX_BOARDS; card++) {
+                if (loadstat[card] == 0)
+                        continue;
                 if ((ports = moxa_boards[card].numPorts) == 0)
                         continue;
                 if (readb(moxaIntPend[card]) == 0xff) {
@@ -2903,6 +2906,7 @@ static int moxaloadcode(int cardno, unsigned char __user *tmp, int len)
                 }
                 break;
         }
+        loadstat[cardno] = 1;
         return (0);
 }
 
@@ -2920,7 +2924,7 @@ static int moxaloadc218(int cardno, void __iomem *baseAddr, int len)
         len1 = len >> 1;
         ptr = (ushort *) moxaBuff;
         for (i = 0; i < len1; i++)
-                usum += *(ptr + i);
+                usum += le16_to_cpu(*(ptr + i));
         retry = 0;
         do {
                 len1 = len >> 1;
@@ -2992,7 +2996,7 @@ static int moxaloadc320(int cardno, void __iomem *baseAddr, int len, int *numPor
         wlen = len >> 1;
         uptr = (ushort *) moxaBuff;
         for (i = 0; i < wlen; i++)
-                usum += uptr[i];
+                usum += le16_to_cpu(uptr[i]);
         retry = 0;
         j = 0;
         do {
diff --git a/drivers/char/tty_io.c b/drivers/char/tty_io.c
index bfdb90242a90..bb0d9199e994 100644
--- a/drivers/char/tty_io.c
+++ b/drivers/char/tty_io.c
@@ -153,6 +153,15 @@ int tty_ioctl(struct inode * inode, struct file * file,
 static int tty_fasync(int fd, struct file * filp, int on);
 static void release_mem(struct tty_struct *tty, int idx);
 
+/**
+ *      alloc_tty_struct        -       allocate a tty object
+ *
+ *      Return a new empty tty structure. The data fields have not
+ *      been initialized in any way but has been zeroed
+ *
+ *      Locking: none
+ *      FIXME: use kzalloc
+ */
 
 static struct tty_struct *alloc_tty_struct(void)
 {
@@ -166,6 +175,15 @@ static struct tty_struct *alloc_tty_struct(void)
 
 static void tty_buffer_free_all(struct tty_struct *);
 
+/**
+ *      free_tty_struct         -       free a disused tty
+ *      @tty: tty struct to free
+ *
+ *      Free the write buffers, tty queue and tty memory itself.
+ *
+ *      Locking: none. Must be called after tty is definitely unused
+ */
+
 static inline void free_tty_struct(struct tty_struct *tty)
 {
         kfree(tty->write_buf);
@@ -175,6 +193,17 @@ static inline void free_tty_struct(struct tty_struct *tty)
 
 #define TTY_NUMBER(tty) ((tty)->index + (tty)->driver->name_base)
 
+/**
+ *      tty_name        -       return tty naming
+ *      @tty: tty structure
+ *      @buf: buffer for output
+ *
+ *      Convert a tty structure into a name. The name reflects the kernel
+ *      naming policy and if udev is in use may not reflect user space
+ *
+ *      Locking: none
+ */
+
 char *tty_name(struct tty_struct *tty, char *buf)
 {
         if (!tty) /* Hmm.  NULL pointer.  That's fun. */
@@ -235,6 +264,28 @@ static int check_tty_count(struct tty_struct *tty, const char *routine)
  * Tty buffer allocation management
  */
 
+
+/**
+ *      tty_buffer_free_all             -       free buffers used by a tty
+ *      @tty: tty to free from
+ *
+ *      Remove all the buffers pending on a tty whether queued with data
+ *      or in the free ring. Must be called when the tty is no longer in use
+ *
+ *      Locking: none
+ */
+
+
+/**
+ *      tty_buffer_free_all             -       free buffers used by a tty
+ *      @tty: tty to free from
+ *
+ *      Remove all the buffers pending on a tty whether queued with data
+ *      or in the free ring. Must be called when the tty is no longer in use
+ *
+ *      Locking: none
+ */
+
 static void tty_buffer_free_all(struct tty_struct *tty)
 {
         struct tty_buffer *thead;
@@ -247,19 +298,47 @@ static void tty_buffer_free_all(struct tty_struct *tty)
                 kfree(thead);
         }
         tty->buf.tail = NULL;
+        tty->buf.memory_used = 0;
 }
 
+/**
+ *      tty_buffer_init         -       prepare a tty buffer structure
+ *      @tty: tty to initialise
+ *
+ *      Set up the initial state of the buffer management for a tty device.
+ *      Must be called before the other tty buffer functions are used.
+ *
+ *      Locking: none
+ */
+
 static void tty_buffer_init(struct tty_struct *tty)
 {
         spin_lock_init(&tty->buf.lock);
         tty->buf.head = NULL;
         tty->buf.tail = NULL;
         tty->buf.free = NULL;
+        tty->buf.memory_used = 0;
 }
 
-static struct tty_buffer *tty_buffer_alloc(size_t size)
+/**
+ *      tty_buffer_alloc        -       allocate a tty buffer
+ *      @tty: tty device
+ *      @size: desired size (characters)
+ *
+ *      Allocate a new tty buffer to hold the desired number of characters.
+ *      Return NULL if out of memory or the allocation would exceed the
+ *      per device queue
+ *
+ *      Locking: Caller must hold tty->buf.lock
+ */
+
+static struct tty_buffer *tty_buffer_alloc(struct tty_struct *tty, size_t size)
 {
-        struct tty_buffer *p = kmalloc(sizeof(struct tty_buffer) + 2 * size, GFP_ATOMIC);
+        struct tty_buffer *p;
+
+        if (tty->buf.memory_used + size > 65536)
+                return NULL;
+        p = kmalloc(sizeof(struct tty_buffer) + 2 * size, GFP_ATOMIC);
         if(p == NULL)
                 return NULL;
         p->used = 0;
@@ -269,17 +348,27 @@ static struct tty_buffer *tty_buffer_alloc(size_t size)
         p->read = 0;
         p->char_buf_ptr = (char *)(p->data);
         p->flag_buf_ptr = (unsigned char *)p->char_buf_ptr + size;
-/*      printk("Flip create %p\n", p); */
+        tty->buf.memory_used += size;
         return p;
 }
 
-/* Must be called with the tty_read lock held. This needs to acquire strategy
-   code to decide if we should kfree or relink a given expired buffer */
+/**
+ *      tty_buffer_free         -       free a tty buffer
+ *      @tty: tty owning the buffer
+ *      @b: the buffer to free
+ *
+ *      Free a tty buffer, or add it to the free list according to our
+ *      internal strategy
+ *
+ *      Locking: Caller must hold tty->buf.lock
+ */
 
 static void tty_buffer_free(struct tty_struct *tty, struct tty_buffer *b)
 {
         /* Dumb strategy for now - should keep some stats */
-/*      printk("Flip dispose %p\n", b); */
+        tty->buf.memory_used -= b->size;
+        WARN_ON(tty->buf.memory_used < 0);
+
         if(b->size >= 512)
                 kfree(b);
         else {
@@ -288,6 +377,18 @@ static void tty_buffer_free(struct tty_struct *tty, struct tty_buffer *b)
         }
 }
 
+/**
+ *      tty_buffer_find         -       find a free tty buffer
+ *      @tty: tty owning the buffer
+ *      @size: characters wanted
+ *
+ *      Locate an existing suitable tty buffer or if we are lacking one then
+ *      allocate a new one. We round our buffers off in 256 character chunks
+ *      to get better allocation behaviour.
+ *
+ *      Locking: Caller must hold tty->buf.lock
+ */
+
 static struct tty_buffer *tty_buffer_find(struct tty_struct *tty, size_t size)
 {
         struct tty_buffer **tbh = &tty->buf.free;
@@ -299,20 +400,28 @@ static struct tty_buffer *tty_buffer_find(struct tty_struct *tty, size_t size)
                         t->used = 0;
                         t->commit = 0;
                         t->read = 0;
-                        /* DEBUG ONLY */
-/*                      memset(t->data, '*', size); */
-/*                      printk("Flip recycle %p\n", t); */
+                        tty->buf.memory_used += t->size;
                         return t;
                 }
                 tbh = &((*tbh)->next);
         }
         /* Round the buffer size out */
         size = (size + 0xFF) & ~ 0xFF;
-        return tty_buffer_alloc(size);
+        return tty_buffer_alloc(tty, size);
         /* Should possibly check if this fails for the largest buffer we
            have queued and recycle that ? */
 }
 
+/**
+ *      tty_buffer_request_room         -       grow tty buffer if needed
+ *      @tty: tty structure
+ *      @size: size desired
+ *
+ *      Make at least size bytes of linear space available for the tty
+ *      buffer. If we fail return the size we managed to find.
+ *
+ *      Locking: Takes tty->buf.lock
+ */
 int tty_buffer_request_room(struct tty_struct *tty, size_t size)
 {
         struct tty_buffer *b, *n;
@@ -347,6 +456,18 @@ int tty_buffer_request_room(struct tty_struct *tty, size_t size)
 }
 EXPORT_SYMBOL_GPL(tty_buffer_request_room);
 
+/**
+ *      tty_insert_flip_string  -       Add characters to the tty buffer
+ *      @tty: tty structure
+ *      @chars: characters
+ *      @size: size
+ *
+ *      Queue a series of bytes to the tty buffering. All the characters
+ *      passed are marked as without error. Returns the number added.
+ *
+ *      Locking: Called functions may take tty->buf.lock
+ */
+
 int tty_insert_flip_string(struct tty_struct *tty, const unsigned char *chars,
                                 size_t size)
 {
@@ -370,6 +491,20 @@ int tty_insert_flip_string(struct tty_struct *tty, const unsigned char *chars,
 }
 EXPORT_SYMBOL(tty_insert_flip_string);
 
+/**
+ *      tty_insert_flip_string_flags    -       Add characters to the tty buffer
+ *      @tty: tty structure
+ *      @chars: characters
+ *      @flags: flag bytes
+ *      @size: size
+ *
+ *      Queue a series of bytes to the tty buffering. For each character
+ *      the flags array indicates the status of the character. Returns the
+ *      number added.
+ *
+ *      Locking: Called functions may take tty->buf.lock
+ */
+
 int tty_insert_flip_string_flags(struct tty_struct *tty,
                 const unsigned char *chars, const char *flags, size_t size)
 {
@@ -394,6 +529,17 @@ int tty_insert_flip_string_flags(struct tty_struct *tty,
 }
 EXPORT_SYMBOL(tty_insert_flip_string_flags);
 
+/**
+ *      tty_schedule_flip       -       push characters to ldisc
+ *      @tty: tty to push from
+ *
+ *      Takes any pending buffers and transfers their ownership to the
+ *      ldisc side of the queue. It then schedules those characters for
+ *      processing by the line discipline.
+ *
+ *      Locking: Takes tty->buf.lock
+ */
+
 void tty_schedule_flip(struct tty_struct *tty)
 {
         unsigned long flags;
@@ -405,12 +551,19 @@ void tty_schedule_flip(struct tty_struct *tty)
 }
 EXPORT_SYMBOL(tty_schedule_flip);
 
-/*
+/**
+ *      tty_prepare_flip_string         -       make room for characters
+ *      @tty: tty
+ *      @chars: return pointer for character write area
+ *      @size: desired size
+ *
  *      Prepare a block of space in the buffer for data. Returns the length
  *      available and buffer pointer to the space which is now allocated and
  *      accounted for as ready for normal characters. This is used for drivers
  *      that need their own block copy routines into the buffer. There is no
  *      guarantee the buffer is a DMA target!
+ *
+ *      Locking: May call functions taking tty->buf.lock
  */
 
 int tty_prepare_flip_string(struct tty_struct *tty, unsigned char **chars, size_t size)
@@ -427,12 +580,20 @@ int tty_prepare_flip_string(struct tty_struct *tty, unsigned char **chars, size_
 
 EXPORT_SYMBOL_GPL(tty_prepare_flip_string);
 
-/*
+/**
+ *      tty_prepare_flip_string_flags   -       make room for characters
+ *      @tty: tty
+ *      @chars: return pointer for character write area
+ *      @flags: return pointer for status flag write area
+ *      @size: desired size
+ *
  *      Prepare a block of space in the buffer for data. Returns the length
  *      available and buffer pointer to the space which is now allocated and
  *      accounted for as ready for characters. This is used for drivers
  *      that need their own block copy routines into the buffer. There is no
  *      guarantee the buffer is a DMA target!
+ *
+ *      Locking: May call functions taking tty->buf.lock
  */
 
 int tty_prepare_flip_string_flags(struct tty_struct *tty, unsigned char **chars, char **flags, size_t size)
@@ -451,10 +612,16 @@ EXPORT_SYMBOL_GPL(tty_prepare_flip_string_flags);
 
 
 
-/*
+/**
+ *      tty_set_termios_ldisc           -       set ldisc field
+ *      @tty: tty structure
+ *      @num: line discipline number
+ *
  *      This is probably overkill for real world processors but
  *      they are not on hot paths so a little discipline won't do 
  *      any harm.
+ *
+ *      Locking: takes termios_sem
  */
  
 static void tty_set_termios_ldisc(struct tty_struct *tty, int num)
@@ -474,6 +641,19 @@ static DEFINE_SPINLOCK(tty_ldisc_lock);
 static DECLARE_WAIT_QUEUE_HEAD(tty_ldisc_wait);
 static struct tty_ldisc tty_ldiscs[NR_LDISCS];  /* line disc dispatch table */
 
+/**
+ *      tty_register_ldisc      -       install a line discipline
+ *      @disc: ldisc number
+ *      @new_ldisc: pointer to the ldisc object
+ *
+ *      Installs a new line discipline into the kernel. The discipline
+ *      is set up as unreferenced and then made available to the kernel
+ *      from this point onwards.
+ *
+ *      Locking:
+ *              takes tty_ldisc_lock to guard against ldisc races
+ */
+
 int tty_register_ldisc(int disc, struct tty_ldisc *new_ldisc)
 {
         unsigned long flags;
@@ -493,6 +673,18 @@ int tty_register_ldisc(int disc, struct tty_ldisc *new_ldisc)
 }
 EXPORT_SYMBOL(tty_register_ldisc);
 
+/**
+ *      tty_unregister_ldisc    -       unload a line discipline
+ *      @disc: ldisc number
+ *      @new_ldisc: pointer to the ldisc object
+ *
+ *      Remove a line discipline from the kernel providing it is not
+ *      currently in use.
+ *
+ *      Locking:
+ *              takes tty_ldisc_lock to guard against ldisc races
+ */
+
 int tty_unregister_ldisc(int disc)
 {
         unsigned long flags;
@@ -512,6 +704,19 @@ int tty_unregister_ldisc(int disc)
 }
 EXPORT_SYMBOL(tty_unregister_ldisc);
 
+/**
+ *      tty_ldisc_get           -       take a reference to an ldisc
+ *      @disc: ldisc number
+ *
+ *      Takes a reference to a line discipline. Deals with refcounts and
+ *      module locking counts. Returns NULL if the discipline is not available.
+ *      Returns a pointer to the discipline and bumps the ref count if it is
+ *      available
+ *
+ *      Locking:
+ *              takes tty_ldisc_lock to guard against ldisc races
+ */
+
 struct tty_ldisc *tty_ldisc_get(int disc)
 {
         unsigned long flags;
@@ -540,6 +745,17 @@ struct tty_ldisc *tty_ldisc_get(int disc)
 
 EXPORT_SYMBOL_GPL(tty_ldisc_get);
 
+/**
+ *      tty_ldisc_put           -       drop ldisc reference
+ *      @disc: ldisc number
+ *
+ *      Drop a reference to a line discipline. Manage refcounts and
+ *      module usage counts
+ *
+ *      Locking:
+ *              takes tty_ldisc_lock to guard against ldisc races
+ */
+
 void tty_ldisc_put(int disc)
 {
         struct tty_ldisc *ld;
@@ -557,6 +773,19 @@ void tty_ldisc_put(int disc)
         
 EXPORT_SYMBOL_GPL(tty_ldisc_put);
 
+/**
+ *      tty_ldisc_assign        -       set ldisc on a tty
+ *      @tty: tty to assign
+ *      @ld: line discipline
+ *
+ *      Install an instance of a line discipline into a tty structure. The
+ *      ldisc must have a reference count above zero to ensure it remains/
+ *      The tty instance refcount starts at zero.
+ *
+ *      Locking:
+ *              Caller must hold references
+ */
+
 static void tty_ldisc_assign(struct tty_struct *tty, struct tty_ldisc *ld)
 {
         tty->ldisc = *ld;
@@ -571,6 +800,8 @@ static void tty_ldisc_assign(struct tty_struct *tty, struct tty_ldisc *ld)
  *      the tty ldisc. Return 0 on failure or 1 on success. This is
  *      used to implement both the waiting and non waiting versions
  *      of tty_ldisc_ref
+ *
+ *      Locking: takes tty_ldisc_lock
  */
 
 static int tty_ldisc_try(struct tty_struct *tty)
@@ -602,6 +833,8 @@ static int tty_ldisc_try(struct tty_struct *tty)
  *      must also be careful not to hold other locks that will deadlock
  *      against a discipline change, such as an existing ldisc reference
  *      (which we check for)
+ *
+ *      Locking: call functions take tty_ldisc_lock
  */
  
 struct tty_ldisc *tty_ldisc_ref_wait(struct tty_struct *tty)
@@ -622,6 +855,8 @@ EXPORT_SYMBOL_GPL(tty_ldisc_ref_wait);
  *      Dereference the line discipline for the terminal and take a 
  *      reference to it. If the line discipline is in flux then 
  *      return NULL. Can be called from IRQ and timer functions.
+ *
+ *      Locking: called functions take tty_ldisc_lock
  */
  
 struct tty_ldisc *tty_ldisc_ref(struct tty_struct *tty)
@@ -639,6 +874,8 @@ EXPORT_SYMBOL_GPL(tty_ldisc_ref);
  *
  *      Undoes the effect of tty_ldisc_ref or tty_ldisc_ref_wait. May
  *      be called in IRQ context.
+ *
+ *      Locking: takes tty_ldisc_lock
  */
  
 void tty_ldisc_deref(struct tty_ldisc *ld)
@@ -683,6 +920,9 @@ static void tty_ldisc_enable(struct tty_struct *tty)
  *
  *      Set the discipline of a tty line. Must be called from a process
  *      context.
+ *
+ *      Locking: takes tty_ldisc_lock.
+ *              called functions take termios_sem
  */
  
 static int tty_set_ldisc(struct tty_struct *tty, int ldisc)
@@ -846,9 +1086,17 @@ restart:
         return retval;
 }
 
-/*
- * This routine returns a tty driver structure, given a device number
+/**
+ *      get_tty_driver          -       find device of a tty
+ *      @dev_t: device identifier
+ *      @index: returns the index of the tty
+ *
+ *      This routine returns a tty driver structure, given a device number
+ *      and also passes back the index number.
+ *
+ *      Locking: caller must hold tty_mutex
  */
+
 static struct tty_driver *get_tty_driver(dev_t device, int *index)
 {
         struct tty_driver *p;
@@ -863,11 +1111,17 @@ static struct tty_driver *get_tty_driver(dev_t device, int *index)
         return NULL;
 }
 
-/*
- * If we try to write to, or set the state of, a terminal and we're
- * not in the foreground, send a SIGTTOU.  If the signal is blocked or
- * ignored, go ahead and perform the operation.  (POSIX 7.2)
+/**
+ *      tty_check_change        -       check for POSIX terminal changes
+ *      @tty: tty to check
+ *
+ *      If we try to write to, or set the state of, a terminal and we're
+ *      not in the foreground, send a SIGTTOU.  If the signal is blocked or
+ *      ignored, go ahead and perform the operation.  (POSIX 7.2)
+ *
+ *      Locking: none
  */
+
 int tty_check_change(struct tty_struct * tty)
 {
         if (current->signal->tty != tty)
@@ -1005,10 +1259,27 @@ void tty_ldisc_flush(struct tty_struct *tty)
 
 EXPORT_SYMBOL_GPL(tty_ldisc_flush);
         
-/*
- * This can be called by the "eventd" kernel thread.  That is process synchronous,
- * but doesn't hold any locks, so we need to make sure we have the appropriate
- * locks for what we're doing..
+/**
+ *      do_tty_hangup           -       actual handler for hangup events
+ *      @data: tty device
+ *
+ *      This can be called by the "eventd" kernel thread.  That is process
+ *      synchronous but doesn't hold any locks, so we need to make sure we
+ *      have the appropriate locks for what we're doing.
+ *
+ *      The hangup event clears any pending redirections onto the hung up
+ *      device. It ensures future writes will error and it does the needed
+ *      line discipline hangup and signal delivery. The tty object itself
+ *      remains intact.
+ *
+ *      Locking:
+ *              BKL
+ *              redirect lock for undoing redirection
+ *              file list lock for manipulating list of ttys
+ *              tty_ldisc_lock from called functions
+ *              termios_sem resetting termios data
+ *              tasklist_lock to walk task list for hangup event
+ *
  */
 static void do_tty_hangup(void *data)
 {
@@ -1133,6 +1404,14 @@ static void do_tty_hangup(void *data)
                 fput(f);
 }
 
+/**
+ *      tty_hangup              -       trigger a hangup event
+ *      @tty: tty to hangup
+ *
+ *      A carrier loss (virtual or otherwise) has occurred on this like
+ *      schedule a hangup sequence to run after this event.
+ */
+
 void tty_hangup(struct tty_struct * tty)
 {
 #ifdef TTY_DEBUG_HANGUP
@@ -1145,6 +1424,15 @@ void tty_hangup(struct tty_struct * tty)
 
 EXPORT_SYMBOL(tty_hangup);
 
+/**
+ *      tty_vhangup             -       process vhangup
+ *      @tty: tty to hangup
+ *
+ *      The user has asked via system call for the terminal to be hung up.
+ *      We do this synchronously so that when the syscall returns the process
+ *      is complete. That guarantee is neccessary for security reasons.
+ */
+
 void tty_vhangup(struct tty_struct * tty)
 {
 #ifdef TTY_DEBUG_HANGUP
@@ -1156,6 +1444,14 @@ void tty_vhangup(struct tty_struct * tty)
 }
 EXPORT_SYMBOL(tty_vhangup);
 
+/**
+ *      tty_hung_up_p           -       was tty hung up
+ *      @filp: file pointer of tty
+ *
+ *      Return true if the tty has been subject to a vhangup or a carrier
+ *      loss
+ */
+
 int tty_hung_up_p(struct file * filp)
 {
         return (filp->f_op == &hung_up_tty_fops);
@@ -1163,19 +1459,28 @@ int tty_hung_up_p(struct file * filp)
 
 EXPORT_SYMBOL(tty_hung_up_p);
 
-/*
- * This function is typically called only by the session leader, when
- * it wants to disassociate itself from its controlling tty.
+/**
+ *      disassociate_ctty       -       disconnect controlling tty
+ *      @on_exit: true if exiting so need to "hang up" the session
+ *
+ *      This function is typically called only by the session leader, when
+ *      it wants to disassociate itself from its controlling tty.
  *
- * It performs the following functions:
+ *      It performs the following functions:
  *      (1)  Sends a SIGHUP and SIGCONT to the foreground process group
  *      (2)  Clears the tty from being controlling the session
  *      (3)  Clears the controlling tty for all processes in the
  *              session group.
  *
- * The argument on_exit is set to 1 if called when a process is
- * exiting; it is 0 if called by the ioctl TIOCNOTTY.
+ *      The argument on_exit is set to 1 if called when a process is
+ *      exiting; it is 0 if called by the ioctl TIOCNOTTY.
+ *
+ *      Locking: tty_mutex is taken to protect current->signal->tty
+ *              BKL is taken for hysterical raisins
+ *              Tasklist lock is taken (under tty_mutex) to walk process
+ *              lists for the session.
  */
+
 void disassociate_ctty(int on_exit)
 {
         struct tty_struct *tty;
@@ -1222,6 +1527,25 @@ void disassociate_ctty(int on_exit)
         unlock_kernel();
 }
 
+
+/**
+ *      stop_tty        -       propogate flow control
+ *      @tty: tty to stop
+ *
+ *      Perform flow control to the driver. For PTY/TTY pairs we
+ *      must also propogate the TIOCKPKT status. May be called
+ *      on an already stopped device and will not re-call the driver
+ *      method.
+ *
+ *      This functionality is used by both the line disciplines for
+ *      halting incoming flow and by the driver. It may therefore be
+ *      called from any context, may be under the tty atomic_write_lock
+ *      but not always.
+ *
+ *      Locking:
+ *              Broken. Relies on BKL which is unsafe here.
+ */
+
 void stop_tty(struct tty_struct *tty)
 {
         if (tty->stopped)
@@ -1238,6 +1562,19 @@ void stop_tty(struct tty_struct *tty)
 
 EXPORT_SYMBOL(stop_tty);
 
+/**
+ *      start_tty       -       propogate flow control
+ *      @tty: tty to start
+ *
+ *      Start a tty that has been stopped if at all possible. Perform
+ *      any neccessary wakeups and propogate the TIOCPKT status. If this
+ *      is the tty was previous stopped and is being started then the
+ *      driver start method is invoked and the line discipline woken.
+ *
+ *      Locking:
+ *              Broken. Relies on BKL which is unsafe here.
+ */
+
 void start_tty(struct tty_struct *tty)
 {
         if (!tty->stopped || tty->flow_stopped)
@@ -1258,6 +1595,23 @@ void start_tty(struct tty_struct *tty)
 
 EXPORT_SYMBOL(start_tty);
 
+/**
+ *      tty_read        -       read method for tty device files
+ *      @file: pointer to tty file
+ *      @buf: user buffer
+ *      @count: size of user buffer
+ *      @ppos: unused
+ *
+ *      Perform the read system call function on this terminal device. Checks
+ *      for hung up devices before calling the line discipline method.
+ *
+ *      Locking:
+ *              Locks the line discipline internally while needed
+ *              For historical reasons the line discipline read method is
+ *      invoked under the BKL. This will go away in time so do not rely on it
+ *      in new code. Multiple read calls may be outstanding in parallel.
+ */
+
 static ssize_t tty_read(struct file * file, char __user * buf, size_t count, 
                         loff_t *ppos)
 {
@@ -1302,6 +1656,7 @@ static inline ssize_t do_tty_write(
         ssize_t ret = 0, written = 0;
         unsigned int chunk;
         
+        /* FIXME: O_NDELAY ... */
         if (mutex_lock_interruptible(&tty->atomic_write_lock)) {
                 return -ERESTARTSYS;
         }
@@ -1318,6 +1673,9 @@ static inline ssize_t do_tty_write(
          * layer has problems with bigger chunks. It will
          * claim to be able to handle more characters than
          * it actually does.
+         *
+         * FIXME: This can probably go away now except that 64K chunks
+         * are too likely to fail unless switched to vmalloc...
          */
         chunk = 2048;
         if (test_bit(TTY_NO_WRITE_SPLIT, &tty->flags))
@@ -1375,6 +1733,24 @@ static inline ssize_t do_tty_write(
 }
 
 
+/**
+ *      tty_write               -       write method for tty device file
+ *      @file: tty file pointer
+ *      @buf: user data to write
+ *      @count: bytes to write
+ *      @ppos: unused
+ *
+ *      Write data to a tty device via the line discipline.
+ *
+ *      Locking:
+ *              Locks the line discipline as required
+ *              Writes to the tty driver are serialized by the atomic_write_lock
+ *      and are then processed in chunks to the device. The line discipline
+ *      write method will not be involked in parallel for each device
+ *              The line discipline write method is called under the big
+ *      kernel lock for historical reasons. New code should not rely on this.
+ */
+
 static ssize_t tty_write(struct file * file, const char __user * buf, size_t count,
                          loff_t *ppos)
 {
@@ -1422,7 +1798,18 @@ ssize_t redirected_tty_write(struct file * file, const char __user * buf, size_t
 
 static char ptychar[] = "pqrstuvwxyzabcde";
 
-static inline void pty_line_name(struct tty_driver *driver, int index, char *p)
+/**
+ *      pty_line_name   -       generate name for a pty
+ *      @driver: the tty driver in use
+ *      @index: the minor number
+ *      @p: output buffer of at least 6 bytes
+ *
+ *      Generate a name from a driver reference and write it to the output
+ *      buffer.
+ *
+ *      Locking: None
+ */
+static void pty_line_name(struct tty_driver *driver, int index, char *p)
 {
         int i = index + driver->name_base;
         /* ->name is initialized to "ttyp", but "tty" is expected */
@@ -1431,24 +1818,53 @@ static inline void pty_line_name(struct tty_driver *driver, int index, char *p)
                         ptychar[i >> 4 & 0xf], i & 0xf);
 }
 
-static inline void tty_line_name(struct tty_driver *driver, int index, char *p)
+/**
+ *      pty_line_name   -       generate name for a tty
+ *      @driver: the tty driver in use
+ *      @index: the minor number
+ *      @p: output buffer of at least 7 bytes
+ *
+ *      Generate a name from a driver reference and write it to the output
+ *      buffer.
+ *
+ *      Locking: None
+ */
+static void tty_line_name(struct tty_driver *driver, int index, char *p)
 {
         sprintf(p, "%s%d", driver->name, index + driver->name_base);
 }
 
-/*
+/**
+ *      init_dev                -       initialise a tty device
+ *      @driver: tty driver we are opening a device on
+ *      @idx: device index
+ *      @tty: returned tty structure
+ *
+ *      Prepare a tty device. This may not be a "new" clean device but
+ *      could also be an active device. The pty drivers require special
+ *      handling because of this.
+ *
+ *      Locking:
+ *              The function is called under the tty_mutex, which
+ *      protects us from the tty struct or driver itself going away.
+ *
+ *      On exit the tty device has the line discipline attached and
+ *      a reference count of 1. If a pair was created for pty/tty use
+ *      and the other was a pty master then it too has a reference count of 1.
+ *
  * WSH 06/09/97: Rewritten to remove races and properly clean up after a
  * failed open.  The new code protects the open with a mutex, so it's
  * really quite straightforward.  The mutex locking can probably be
  * relaxed for the (most common) case of reopening a tty.
  */
+
 static int init_dev(struct tty_driver *driver, int idx,
         struct tty_struct **ret_tty)
 {
         struct tty_struct *tty, *o_tty;
         struct termios *tp, **tp_loc, *o_tp, **o_tp_loc;
         struct termios *ltp, **ltp_loc, *o_ltp, **o_ltp_loc;
-        int retval=0;
+        int retval = 0;
 
         /* check whether we're reopening an existing tty */
         if (driver->flags & TTY_DRIVER_DEVPTS_MEM) {
@@ -1662,10 +2078,20 @@ release_mem_out:
         goto end_init;
 }
 
-/*
- * Releases memory associated with a tty structure, and clears out the
- * driver table slots.
+/**
+ *      release_mem             -       release tty structure memory
+ *
+ *      Releases memory associated with a tty structure, and clears out the
+ *      driver table slots. This function is called when a device is no longer
+ *      in use. It also gets called when setup of a device fails.
+ *
+ *      Locking:
+ *              tty_mutex - sometimes only
+ *              takes the file list lock internally when working on the list
+ *      of ttys that the driver keeps.
+ *              FIXME: should we require tty_mutex is held here ??
  */
+
 static void release_mem(struct tty_struct *tty, int idx)
 {
         struct tty_struct *o_tty;
@@ -2006,18 +2432,27 @@ static void release_dev(struct file * filp)
 
 }
 
-/*
- * tty_open and tty_release keep up the tty count that contains the
- * number of opens done on a tty. We cannot use the inode-count, as
- * different inodes might point to the same tty.
+/**
+ *      tty_open                -       open a tty device
+ *      @inode: inode of device file
+ *      @filp: file pointer to tty
+ *
+ *      tty_open and tty_release keep up the tty count that contains the
+ *      number of opens done on a tty. We cannot use the inode-count, as
+ *      different inodes might point to the same tty.
  *
- * Open-counting is needed for pty masters, as well as for keeping
- * track of serial lines: DTR is dropped when the last close happens.
- * (This is not done solely through tty->count, now.  - Ted 1/27/92)
+ *      Open-counting is needed for pty masters, as well as for keeping
+ *      track of serial lines: DTR is dropped when the last close happens.
+ *      (This is not done solely through tty->count, now.  - Ted 1/27/92)
  *
- * The termios state of a pty is reset on first open so that
- * settings don't persist across reuse.
+ *      The termios state of a pty is reset on first open so that
+ *      settings don't persist across reuse.
+ *
+ *      Locking: tty_mutex protects current->signal->tty, get_tty_driver and
+ *              init_dev work. tty->count should protect the rest.
+ *              task_lock is held to update task details for sessions
  */
+
 static int tty_open(struct inode * inode, struct file * filp)
 {
         struct tty_struct *tty;
@@ -2132,6 +2567,18 @@ got_driver:
 }
 
 #ifdef CONFIG_UNIX98_PTYS
+/**
+ *      ptmx_open               -       open a unix 98 pty master
+ *      @inode: inode of device file
+ *      @filp: file pointer to tty
+ *
+ *      Allocate a unix98 pty master device from the ptmx driver.
+ *
+ *      Locking: tty_mutex protects theinit_dev work. tty->count should
+                protect the rest.
+ *              allocated_ptys_lock handles the list of free pty numbers
+ */
+
 static int ptmx_open(struct inode * inode, struct file * filp)
 {
         struct tty_struct *tty;
@@ -2191,6 +2638,18 @@ out:
 }
 #endif
 
+/**
+ *      tty_release             -       vfs callback for close
+ *      @inode: inode of tty
+ *      @filp: file pointer for handle to tty
+ *
+ *      Called the last time each file handle is closed that references
+ *      this tty. There may however be several such references.
+ *
+ *      Locking:
+ *              Takes bkl. See release_dev
+ */
+
 static int tty_release(struct inode * inode, struct file * filp)
 {
         lock_kernel();
@@ -2199,7 +2658,18 @@ static int tty_release(struct inode * inode, struct file * filp)
         return 0;
 }
 
-/* No kernel lock held - fine */
+/**
+ *      tty_poll        -       check tty status
+ *      @filp: file being polled
+ *      @wait: poll wait structures to update
+ *
+ *      Call the line discipline polling method to obtain the poll
+ *      status of the device.
+ *
+ *      Locking: locks called line discipline but ldisc poll method
+ *      may be re-entered freely by other callers.
+ */
+
 static unsigned int tty_poll(struct file * filp, poll_table * wait)
 {
         struct tty_struct * tty;
@@ -2243,6 +2713,21 @@ static int tty_fasync(int fd, struct file * filp, int on)
         return 0;
 }
 
+/**
+ *      tiocsti                 -       fake input character
+ *      @tty: tty to fake input into
+ *      @p: pointer to character
+ *
+ *      Fake input to a tty device. Does the neccessary locking and
+ *      input management.
+ *
+ *      FIXME: does not honour flow control ??
+ *
+ *      Locking:
+ *              Called functions take tty_ldisc_lock
+ *              current->signal->tty check is safe without locks
+ */
+
 static int tiocsti(struct tty_struct *tty, char __user *p)
 {
         char ch, mbz = 0;
@@ -2258,6 +2743,18 @@ static int tiocsti(struct tty_struct *tty, char __user *p)
         return 0;
 }
 
+/**
+ *      tiocgwinsz              -       implement window query ioctl
+ *      @tty; tty
+ *      @arg: user buffer for result
+ *
+ *      Copies the kernel idea of the window size into the user buffer. No
+ *      locking is done.
+ *
+ *      FIXME: Returning random values racing a window size set is wrong
+ *      should lock here against that
+ */
+
 static int tiocgwinsz(struct tty_struct *tty, struct winsize __user * arg)
 {
         if (copy_to_user(arg, &tty->winsize, sizeof(*arg)))
@@ -2265,6 +2762,24 @@ static int tiocgwinsz(struct tty_struct *tty, struct winsize __user * arg)
         return 0;
 }
 
+/**
+ *      tiocswinsz              -       implement window size set ioctl
+ *      @tty; tty
+ *      @arg: user buffer for result
+ *
+ *      Copies the user idea of the window size to the kernel. Traditionally
+ *      this is just advisory information but for the Linux console it
+ *      actually has driver level meaning and triggers a VC resize.
+ *
+ *      Locking:
+ *              The console_sem is used to ensure we do not try and resize
+ *      the console twice at once.
+ *      FIXME: Two racing size sets may leave the console and kernel
+ *              parameters disagreeing. Is this exploitable ?
+ *      FIXME: Random values racing a window size get is wrong
+ *      should lock here against that
+ */
+
 static int tiocswinsz(struct tty_struct *tty, struct tty_struct *real_tty,
         struct winsize __user * arg)
 {
@@ -2294,6 +2809,15 @@ static int tiocswinsz(struct tty_struct *tty, struct tty_struct *real_tty,
         return 0;
 }
 
+/**
+ *      tioccons        -       allow admin to move logical console
+ *      @file: the file to become console
+ *
+ *      Allow the adminstrator to move the redirected console device
+ *
+ *      Locking: uses redirect_lock to guard the redirect information
+ */
+
 static int tioccons(struct file *file)
 {
         if (!capable(CAP_SYS_ADMIN))
@@ -2319,6 +2843,17 @@ static int tioccons(struct file *file)
         return 0;
 }
 
+/**
+ *      fionbio         -       non blocking ioctl
+ *      @file: file to set blocking value
+ *      @p: user parameter
+ *
+ *      Historical tty interfaces had a blocking control ioctl before
+ *      the generic functionality existed. This piece of history is preserved
+ *      in the expected tty API of posix OS's.
+ *
+ *      Locking: none, the open fle handle ensures it won't go away.
+ */
 
 static int fionbio(struct file *file, int __user *p)
 {
@@ -2334,6 +2869,23 @@ static int fionbio(struct file *file, int __user *p)
         return 0;
 }
 
+/**
+ *      tiocsctty       -       set controlling tty
+ *      @tty: tty structure
+ *      @arg: user argument
+ *
+ *      This ioctl is used to manage job control. It permits a session
+ *      leader to set this tty as the controlling tty for the session.
+ *
+ *      Locking:
+ *              Takes tasklist lock internally to walk sessions
+ *              Takes task_lock() when updating signal->tty
+ *
+ *      FIXME: tty_mutex is needed to protect signal->tty references.
+ *      FIXME: why task_lock on the signal->tty reference ??
+ *
+ */
+
 static int tiocsctty(struct tty_struct *tty, int arg)
 {
         struct task_struct *p;
@@ -2374,6 +2926,18 @@ static int tiocsctty(struct tty_struct *tty, int arg)
         return 0;
 }
 
+/**
+ *      tiocgpgrp               -       get process group
+ *      @tty: tty passed by user
+ *      @real_tty: tty side of the tty pased by the user if a pty else the tty
+ *      @p: returned pid
+ *
+ *      Obtain the process group of the tty. If there is no process group
+ *      return an error.
+ *
+ *      Locking: none. Reference to ->signal->tty is safe.
+ */
+
 static int tiocgpgrp(struct tty_struct *tty, struct tty_struct *real_tty, pid_t __user *p)
 {
         /*
@@ -2385,6 +2949,20 @@ static int tiocgpgrp(struct tty_struct *tty, struct tty_struct *real_tty, pid_t
         return put_user(real_tty->pgrp, p);
 }
 
+/**
+ *      tiocspgrp               -       attempt to set process group
+ *      @tty: tty passed by user
+ *      @real_tty: tty side device matching tty passed by user
+ *      @p: pid pointer
+ *
+ *      Set the process group of the tty to the session passed. Only
+ *      permitted where the tty session is our session.
+ *
+ *      Locking: None
+ *
+ *      FIXME: current->signal->tty referencing is unsafe.
+ */
+
 static int tiocspgrp(struct tty_struct *tty, struct tty_struct *real_tty, pid_t __user *p)
 {
         pid_t pgrp;
@@ -2408,6 +2986,18 @@ static int tiocspgrp(struct tty_struct *tty, struct tty_struct *real_tty, pid_t
         return 0;
 }
 
+/**
+ *      tiocgsid                -       get session id
+ *      @tty: tty passed by user
+ *      @real_tty: tty side of the tty pased by the user if a pty else the tty
+ *      @p: pointer to returned session id
+ *
+ *      Obtain the session id of the tty. If there is no session
+ *      return an error.
+ *
+ *      Locking: none. Reference to ->signal->tty is safe.
+ */
+
 static int tiocgsid(struct tty_struct *tty, struct tty_struct *real_tty, pid_t __user *p)
 {
         /*
@@ -2421,6 +3011,16 @@ static int tiocgsid(struct tty_struct *tty, struct tty_struct *real_tty, pid_t _
         return put_user(real_tty->session, p);
 }
 
+/**
+ *      tiocsetd        -       set line discipline
+ *      @tty: tty device
+ *      @p: pointer to user data
+ *
+ *      Set the line discipline according to user request.
+ *
+ *      Locking: see tty_set_ldisc, this function is just a helper
+ */
+
 static int tiocsetd(struct tty_struct *tty, int __user *p)
 {
         int ldisc;
@@ -2430,6 +3030,21 @@ static int tiocsetd(struct tty_struct *tty, int __user *p)
         return tty_set_ldisc(tty, ldisc);
 }
 
+/**
+ *      send_break      -       performed time break
+ *      @tty: device to break on
+ *      @duration: timeout in mS
+ *
+ *      Perform a timed break on hardware that lacks its own driver level
+ *      timed break functionality.
+ *
+ *      Locking:
+ *              None
+ *
+ *      FIXME:
+ *              What if two overlap
+ */
+
 static int send_break(struct tty_struct *tty, unsigned int duration)
 {
         tty->driver->break_ctl(tty, -1);
@@ -2442,8 +3057,19 @@ static int send_break(struct tty_struct *tty, unsigned int duration)
         return 0;
 }
 
-static int
-tty_tiocmget(struct tty_struct *tty, struct file *file, int __user *p)
+/**
+ *      tiocmget                -       get modem status
+ *      @tty: tty device
+ *      @file: user file pointer
+ *      @p: pointer to result
+ *
+ *      Obtain the modem status bits from the tty driver if the feature
+ *      is supported. Return -EINVAL if it is not available.
+ *
+ *      Locking: none (up to the driver)
+ */
+
+static int tty_tiocmget(struct tty_struct *tty, struct file *file, int __user *p)
 {
         int retval = -EINVAL;
 
@@ -2456,8 +3082,20 @@ tty_tiocmget(struct tty_struct *tty, struct file *file, int __user *p)
         return retval;
 }
 
-static int
-tty_tiocmset(struct tty_struct *tty, struct file *file, unsigned int cmd,
+/**
+ *      tiocmset                -       set modem status
+ *      @tty: tty device
+ *      @file: user file pointer
+ *      @cmd: command - clear bits, set bits or set all
+ *      @p: pointer to desired bits
+ *
+ *      Set the modem status bits from the tty driver if the feature
+ *      is supported. Return -EINVAL if it is not available.
+ *
+ *      Locking: none (up to the driver)
+ */
+
+static int tty_tiocmset(struct tty_struct *tty, struct file *file, unsigned int cmd,
              unsigned __user *p)
 {
         int retval = -EINVAL;
@@ -2573,6 +3211,7 @@ int tty_ioctl(struct inode * inode, struct file * file,
                         clear_bit(TTY_EXCLUSIVE, &tty->flags);
                         return 0;
                 case TIOCNOTTY:
+                        /* FIXME: taks lock or tty_mutex ? */
                         if (current->signal->tty != tty)
                                 return -ENOTTY;
                         if (current->signal->leader)
@@ -2753,9 +3392,16 @@ void do_SAK(struct tty_struct *tty)
 
 EXPORT_SYMBOL(do_SAK);
 
-/*
- * This routine is called out of the software interrupt to flush data
- * from the buffer chain to the line discipline.
+/**
+ *      flush_to_ldisc
+ *      @private_: tty structure passed from work queue.
+ *
+ *      This routine is called out of the software interrupt to flush data
+ *      from the buffer chain to the line discipline.
+ *
+ *      Locking: holds tty->buf.lock to guard buffer list. Drops the lock
+ *      while invoking the line discipline receive_buf method. The
+ *      receive_buf method is single threaded for each tty instance.
  */
  
 static void flush_to_ldisc(void *private_)
@@ -2831,6 +3477,8 @@ static int n_baud_table = ARRAY_SIZE(baud_table);
  *      Convert termios baud rate data into a speed. This should be called
  *      with the termios lock held if this termios is a terminal termios
  *      structure. May change the termios data.
+ *
+ *      Locking: none
  */
  
 int tty_termios_baud_rate(struct termios *termios)
@@ -2859,6 +3507,8 @@ EXPORT_SYMBOL(tty_termios_baud_rate);
  *      Returns the baud rate as an integer for this terminal. The
  *      termios lock must be held by the caller and the terminal bit
  *      flags may be updated.
+ *
+ *      Locking: none
  */
  
 int tty_get_baud_rate(struct tty_struct *tty)
@@ -2888,6 +3538,8 @@ EXPORT_SYMBOL(tty_get_baud_rate);
  *
  *      In the event of the queue being busy for flipping the work will be
  *      held off and retried later.
+ *
+ *      Locking: tty buffer lock. Driver locks in low latency mode.
  */
 
 void tty_flip_buffer_push(struct tty_struct *tty)
@@ -2907,9 +3559,16 @@ void tty_flip_buffer_push(struct tty_struct *tty)
 EXPORT_SYMBOL(tty_flip_buffer_push);
 
 
-/*
- * This subroutine initializes a tty structure.
+/**
+ *      initialize_tty_struct
+ *      @tty: tty to initialize
+ *
+ *      This subroutine initializes a tty structure that has been newly
+ *      allocated.
+ *
+ *      Locking: none - tty in question must not be exposed at this point
  */
+
 static void initialize_tty_struct(struct tty_struct *tty)
 {
         memset(tty, 0, sizeof(struct tty_struct));
@@ -2935,6 +3594,7 @@ static void initialize_tty_struct(struct tty_struct *tty)
 /*
  * The default put_char routine if the driver did not define one.
  */
+
 static void tty_default_put_char(struct tty_struct *tty, unsigned char ch)
 {
         tty->driver->write(tty, &ch, 1);
@@ -2943,19 +3603,23 @@ static void tty_default_put_char(struct tty_struct *tty, unsigned char ch)
 static struct class *tty_class;
 
 /**
- * tty_register_device - register a tty device
- * @driver: the tty driver that describes the tty device
- * @index: the index in the tty driver for this tty device
- * @device: a struct device that is associated with this tty device.
- *      This field is optional, if there is no known struct device for this
- *      tty device it can be set to NULL safely.
+ *      tty_register_device - register a tty device
+ *      @driver: the tty driver that describes the tty device
+ *      @index: the index in the tty driver for this tty device
+ *      @device: a struct device that is associated with this tty device.
+ *              This field is optional, if there is no known struct device
+ *              for this tty device it can be set to NULL safely.
  *
- * Returns a pointer to the class device (or ERR_PTR(-EFOO) on error).
+ *      Returns a pointer to the class device (or ERR_PTR(-EFOO) on error).
  *
- * This call is required to be made to register an individual tty device if
- * the tty driver's flags have the TTY_DRIVER_DYNAMIC_DEV bit set.  If that
- * bit is not set, this function should not be called by a tty driver.
+ *      This call is required to be made to register an individual tty device
+ *      if the tty driver's flags have the TTY_DRIVER_DYNAMIC_DEV bit set.  If
+ *      that bit is not set, this function should not be called by a tty
+ *      driver.
+ *
+ *      Locking: ??
  */
+
 struct class_device *tty_register_device(struct tty_driver *driver,
                                          unsigned index, struct device *device)
 {
@@ -2977,13 +3641,16 @@ struct class_device *tty_register_device(struct tty_driver *driver,
 }
 
 /**
- * tty_unregister_device - unregister a tty device
- * @driver: the tty driver that describes the tty device
- * @index: the index in the tty driver for this tty device
+ *      tty_unregister_device - unregister a tty device
+ *      @driver: the tty driver that describes the tty device
+ *      @index: the index in the tty driver for this tty device
  *
- * If a tty device is registered with a call to tty_register_device() then
- * this function must be made when the tty device is gone.
+ *      If a tty device is registered with a call to tty_register_device() then
+ *      this function must be called when the tty device is gone.
+ *
+ *      Locking: ??
  */
+
 void tty_unregister_device(struct tty_driver *driver, unsigned index)
 {
         class_device_destroy(tty_class, MKDEV(driver->major, driver->minor_start) + index);
@@ -3094,7 +3761,6 @@ int tty_register_driver(struct tty_driver *driver)
         driver->cdev.owner = driver->owner;
         error = cdev_add(&driver->cdev, dev, driver->num);
         if (error) {
-                cdev_del(&driver->cdev);
                 unregister_chrdev_region(dev, driver->num);
                 driver->ttys = NULL;
                 driver->termios = driver->termios_locked = NULL;
diff --git a/drivers/char/tty_ioctl.c b/drivers/char/tty_ioctl.c
index f19cf9d7792d..4ad47d321bd4 100644
--- a/drivers/char/tty_ioctl.c
+++ b/drivers/char/tty_ioctl.c
@@ -36,6 +36,18 @@
 #define TERMIOS_WAIT    2
 #define TERMIOS_TERMIO  4
 
+
+/**
+ *      tty_wait_until_sent     -       wait for I/O to finish
+ *      @tty: tty we are waiting for
+ *      @timeout: how long we will wait
+ *
+ *      Wait for characters pending in a tty driver to hit the wire, or
+ *      for a timeout to occur (eg due to flow control)
+ *
+ *      Locking: none
+ */
+
 void tty_wait_until_sent(struct tty_struct * tty, long timeout)
 {
         DECLARE_WAITQUEUE(wait, current);
@@ -94,6 +106,18 @@ static void unset_locked_termios(struct termios *termios,
                         old->c_cc[i] : termios->c_cc[i];
 }
 
+/**
+ *      change_termios          -       update termios values
+ *      @tty: tty to update
+ *      @new_termios: desired new value
+ *
+ *      Perform updates to the termios values set on this terminal. There
+ *      is a bit of layering violation here with n_tty in terms of the
+ *      internal knowledge of this function.
+ *
+ *      Locking: termios_sem
+ */
+
 static void change_termios(struct tty_struct * tty, struct termios * new_termios)
 {
         int canon_change;
@@ -155,6 +179,19 @@ static void change_termios(struct tty_struct * tty, struct termios * new_termios
         up(&tty->termios_sem);
 }
 
+/**
+ *      set_termios             -       set termios values for a tty
+ *      @tty: terminal device
+ *      @arg: user data
+ *      @opt: option information
+ *
+ *      Helper function to prepare termios data and run neccessary other
+ *      functions before using change_termios to do the actual changes.
+ *
+ *      Locking:
+ *              Called functions take ldisc and termios_sem locks
+ */
+
 static int set_termios(struct tty_struct * tty, void __user *arg, int opt)
 {
         struct termios tmp_termios;
@@ -284,6 +321,17 @@ static void set_sgflags(struct termios * termios, int flags)
         }
 }
 
+/**
+ *      set_sgttyb              -       set legacy terminal values
+ *      @tty: tty structure
+ *      @sgttyb: pointer to old style terminal structure
+ *
+ *      Updates a terminal from the legacy BSD style terminal information
+ *      structure.
+ *
+ *      Locking: termios_sem
+ */
+
 static int set_sgttyb(struct tty_struct * tty, struct sgttyb __user * sgttyb)
 {
         int retval;
@@ -369,9 +417,16 @@ static int set_ltchars(struct tty_struct * tty, struct ltchars __user * ltchars)
 }
 #endif
 
-/*
- * Send a high priority character to the tty.
+/**
+ *      send_prio_char          -       send priority character
+ *
+ *      Send a high priority character to the tty even if stopped
+ *
+ *      Locking: none
+ *
+ *      FIXME: overlapping calls with start/stop tty lose state of tty
  */
+
 static void send_prio_char(struct tty_struct *tty, char ch)
 {
         int     was_stopped = tty->stopped;
diff --git a/drivers/char/vt_ioctl.c b/drivers/char/vt_ioctl.c
index eccffaf26faa..a5628a8b6620 100644
--- a/drivers/char/vt_ioctl.c
+++ b/drivers/char/vt_ioctl.c
@@ -1011,6 +1011,8 @@ int vt_ioctl(struct tty_struct *tty, struct file * file,
                    return -EPERM;
                 vt_dont_switch = 0;
                 return 0;
+        case VT_GETHIFONTMASK:
+                return put_user(vc->vc_hi_font_mask, (unsigned short __user *)arg);
         default:
                 return -ENOIOCTLCMD;
         }
diff --git a/drivers/hwmon/abituguru.c b/drivers/hwmon/abituguru.c
index cc15c4f2e9ec..35ad1b032726 100644
--- a/drivers/hwmon/abituguru.c
+++ b/drivers/hwmon/abituguru.c
@@ -26,6 +26,7 @@
 #include <linux/jiffies.h>
 #include <linux/mutex.h>
 #include <linux/err.h>
+#include <linux/delay.h>
 #include <linux/platform_device.h>
 #include <linux/hwmon.h>
 #include <linux/hwmon-sysfs.h>
@@ -64,17 +65,17 @@
 #define ABIT_UGURU_IN_SENSOR                    0
 #define ABIT_UGURU_TEMP_SENSOR                  1
 #define ABIT_UGURU_NC                           2
-/* Timeouts / Retries, if these turn out to need a lot of fiddling we could
-   convert them to params. */
-/* 250 was determined by trial and error, 200 works most of the time, but not
-   always. I assume this is cpu-speed independent, since the ISA-bus and not
-   the CPU should be the bottleneck. Note that 250 sometimes is still not
-   enough (only reported on AN7 mb) this is handled by a higher layer. */
-#define ABIT_UGURU_WAIT_TIMEOUT                 250
+/* In many cases we need to wait for the uGuru to reach a certain status, most
+   of the time it will reach this status within 30 - 90 ISA reads, and thus we
+   can best busy wait. This define gives the total amount of reads to try. */
+#define ABIT_UGURU_WAIT_TIMEOUT                 125
+/* However sometimes older versions of the uGuru seem to be distracted and they
+   do not respond for a long time. To handle this we sleep before each of the
+   last ABIT_UGURU_WAIT_TIMEOUT_SLEEP tries. */
+#define ABIT_UGURU_WAIT_TIMEOUT_SLEEP           5
 /* Normally all expected status in abituguru_ready, are reported after the
-   first read, but sometimes not and we need to poll, 5 polls was not enough
-   50 sofar is. */
-#define ABIT_UGURU_READY_TIMEOUT                50
+   first read, but sometimes not and we need to poll. */
+#define ABIT_UGURU_READY_TIMEOUT                5
 /* Maximum 3 retries on timedout reads/writes, delay 200 ms before retrying */
 #define ABIT_UGURU_MAX_RETRIES                  3
 #define ABIT_UGURU_RETRY_DELAY                  (HZ/5)
@@ -226,6 +227,10 @@ static int abituguru_wait(struct abituguru_data *data, u8 state)
                 timeout--;
                 if (timeout == 0)
                         return -EBUSY;
+                /* sleep a bit before our last few tries, see the comment on
+                   this where ABIT_UGURU_WAIT_TIMEOUT_SLEEP is defined. */
+                if (timeout <= ABIT_UGURU_WAIT_TIMEOUT_SLEEP)
+                        msleep(0);
         }
         return 0;
 }
@@ -256,6 +261,7 @@ static int abituguru_ready(struct abituguru_data *data)
                            "CMD reg does not hold 0xAC after ready command\n");
                         return -EIO;
                 }
+                msleep(0);
         }
 
         /* After this the ABIT_UGURU_DATA port should contain
@@ -268,6 +274,7 @@ static int abituguru_ready(struct abituguru_data *data)
                                 "state != more input after ready command\n");
                         return -EIO;
                 }
+                msleep(0);
         }
 
         data->uguru_ready = 1;
@@ -331,7 +338,8 @@ static int abituguru_read(struct abituguru_data *data,
         /* And read the data */
         for (i = 0; i < count; i++) {
                 if (abituguru_wait(data, ABIT_UGURU_STATUS_READ)) {
-                        ABIT_UGURU_DEBUG(1, "timeout exceeded waiting for "
+                        ABIT_UGURU_DEBUG(retries ? 1 : 3,
+                                "timeout exceeded waiting for "
                                 "read state (bank: %d, sensor: %d)\n",
                                 (int)bank_addr, (int)sensor_addr);
                         break;
@@ -350,7 +358,9 @@ static int abituguru_read(struct abituguru_data *data,
 static int abituguru_write(struct abituguru_data *data,
         u8 bank_addr, u8 sensor_addr, u8 *buf, int count)
 {
-        int i;
+        /* We use the ready timeout as we have to wait for 0xAC just like the
+           ready function */
+        int i, timeout = ABIT_UGURU_READY_TIMEOUT;
 
         /* Send the address */
         i = abituguru_send_address(data, bank_addr, sensor_addr,
@@ -370,7 +380,8 @@ static int abituguru_write(struct abituguru_data *data,
         }
 
         /* Now we need to wait till the chip is ready to be read again,
-           don't ask why */
+           so that we can read 0xAC as confirmation that our write has
+           succeeded. */
         if (abituguru_wait(data, ABIT_UGURU_STATUS_READ)) {
                 ABIT_UGURU_DEBUG(1, "timeout exceeded waiting for read state "
                         "after write (bank: %d, sensor: %d)\n", (int)bank_addr,
@@ -379,11 +390,15 @@ static int abituguru_write(struct abituguru_data *data,
         }
 
         /* Cmd port MUST be read now and should contain 0xAC */
-        if (inb_p(data->addr + ABIT_UGURU_CMD) != 0xAC) {
-                ABIT_UGURU_DEBUG(1, "CMD reg does not hold 0xAC after write "
-                        "(bank: %d, sensor: %d)\n", (int)bank_addr,
-                        (int)sensor_addr);
-                return -EIO;
+        while (inb_p(data->addr + ABIT_UGURU_CMD) != 0xAC) {
+                timeout--;
+                if (timeout == 0) {
+                        ABIT_UGURU_DEBUG(1, "CMD reg does not hold 0xAC after "
+                                "write (bank: %d, sensor: %d)\n",
+                                (int)bank_addr, (int)sensor_addr);
+                        return -EIO;
+                }
+                msleep(0);
         }
 
         /* Last put the chip back in ready state */
@@ -403,7 +418,7 @@ abituguru_detect_bank1_sensor_type(struct abituguru_data *data,
                                    u8 sensor_addr)
 {
         u8 val, buf[3];
-        int ret = ABIT_UGURU_NC;
+        int i, ret = -ENODEV; /* error is the most common used retval :| */
 
         /* If overriden by the user return the user selected type */
         if (bank1_types[sensor_addr] >= ABIT_UGURU_IN_SENSOR &&
@@ -439,7 +454,7 @@ abituguru_detect_bank1_sensor_type(struct abituguru_data *data,
         buf[2] = 250;
         if (abituguru_write(data, ABIT_UGURU_SENSOR_BANK1 + 2, sensor_addr,
                         buf, 3) != 3)
-                return -ENODEV;
+                goto abituguru_detect_bank1_sensor_type_exit;
         /* Now we need 20 ms to give the uguru time to read the sensors
            and raise a voltage alarm */
         set_current_state(TASK_UNINTERRUPTIBLE);
@@ -447,21 +462,16 @@ abituguru_detect_bank1_sensor_type(struct abituguru_data *data,
         /* Check for alarm and check the alarm is a volt low alarm. */
         if (abituguru_read(data, ABIT_UGURU_ALARM_BANK, 0, buf, 3,
                         ABIT_UGURU_MAX_RETRIES) != 3)
-                return -ENODEV;
+                goto abituguru_detect_bank1_sensor_type_exit;
         if (buf[sensor_addr/8] & (0x01 << (sensor_addr % 8))) {
                 if (abituguru_read(data, ABIT_UGURU_SENSOR_BANK1 + 1,
                                 sensor_addr, buf, 3,
                                 ABIT_UGURU_MAX_RETRIES) != 3)
-                        return -ENODEV;
+                        goto abituguru_detect_bank1_sensor_type_exit;
                 if (buf[0] & ABIT_UGURU_VOLT_LOW_ALARM_FLAG) {
-                        /* Restore original settings */
-                        if (abituguru_write(data, ABIT_UGURU_SENSOR_BANK1 + 2,
-                                        sensor_addr,
-                                        data->bank1_settings[sensor_addr],
-                                        3) != 3)
-                                return -ENODEV;
                         ABIT_UGURU_DEBUG(2, "  found volt sensor\n");
-                        return ABIT_UGURU_IN_SENSOR;
+                        ret = ABIT_UGURU_IN_SENSOR;
+                        goto abituguru_detect_bank1_sensor_type_exit;
                 } else
                         ABIT_UGURU_DEBUG(2, "  alarm raised during volt "
                                 "sensor test, but volt low flag not set\n");
@@ -477,7 +487,7 @@ abituguru_detect_bank1_sensor_type(struct abituguru_data *data,
         buf[2] = 10;
         if (abituguru_write(data, ABIT_UGURU_SENSOR_BANK1 + 2, sensor_addr,
                         buf, 3) != 3)
-                return -ENODEV;
+                goto abituguru_detect_bank1_sensor_type_exit;
         /* Now we need 50 ms to give the uguru time to read the sensors
            and raise a temp alarm */
         set_current_state(TASK_UNINTERRUPTIBLE);
@@ -485,15 +495,16 @@ abituguru_detect_bank1_sensor_type(struct abituguru_data *data,
         /* Check for alarm and check the alarm is a temp high alarm. */
         if (abituguru_read(data, ABIT_UGURU_ALARM_BANK, 0, buf, 3,
                         ABIT_UGURU_MAX_RETRIES) != 3)
-                return -ENODEV;
+                goto abituguru_detect_bank1_sensor_type_exit;
         if (buf[sensor_addr/8] & (0x01 << (sensor_addr % 8))) {
                 if (abituguru_read(data, ABIT_UGURU_SENSOR_BANK1 + 1,
                                 sensor_addr, buf, 3,
                                 ABIT_UGURU_MAX_RETRIES) != 3)
-                        return -ENODEV;
+                        goto abituguru_detect_bank1_sensor_type_exit;
                 if (buf[0] & ABIT_UGURU_TEMP_HIGH_ALARM_FLAG) {
-                        ret = ABIT_UGURU_TEMP_SENSOR;
                         ABIT_UGURU_DEBUG(2, "  found temp sensor\n");
+                        ret = ABIT_UGURU_TEMP_SENSOR;
+                        goto abituguru_detect_bank1_sensor_type_exit;
                 } else
                         ABIT_UGURU_DEBUG(2, "  alarm raised during temp "
                                 "sensor test, but temp high flag not set\n");
@@ -501,11 +512,23 @@ abituguru_detect_bank1_sensor_type(struct abituguru_data *data,
                 ABIT_UGURU_DEBUG(2, "  alarm not raised during temp sensor "
                         "test\n");
 
-        /* Restore original settings */
-        if (abituguru_write(data, ABIT_UGURU_SENSOR_BANK1 + 2, sensor_addr,
-                        data->bank1_settings[sensor_addr], 3) != 3)
+        ret = ABIT_UGURU_NC;
+abituguru_detect_bank1_sensor_type_exit:
+        /* Restore original settings, failing here is really BAD, it has been
+           reported that some BIOS-es hang when entering the uGuru menu with
+           invalid settings present in the uGuru, so we try this 3 times. */
+        for (i = 0; i < 3; i++)
+                if (abituguru_write(data, ABIT_UGURU_SENSOR_BANK1 + 2,
+                                sensor_addr, data->bank1_settings[sensor_addr],
+                                3) == 3)
+                        break;
+        if (i == 3) {
+                printk(KERN_ERR ABIT_UGURU_NAME
+                        ": Fatal error could not restore original settings. "
+                        "This should never happen please report this to the "
+                        "abituguru maintainer (see MAINTAINERS)\n");
                 return -ENODEV;
-
+        }
         return ret;
 }
 
@@ -1305,7 +1328,7 @@ static struct abituguru_data *abituguru_update_device(struct device *dev)
                 data->update_timeouts = 0;
 LEAVE_UPDATE:
                 /* handle timeout condition */
-                if (err == -EBUSY) {
+                if (!success && (err == -EBUSY || err >= 0)) {
                         /* No overflow please */
                         if (data->update_timeouts < 255u)
                                 data->update_timeouts++;
diff --git a/drivers/i2c/chips/tps65010.c b/drivers/i2c/chips/tps65010.c
index e7e27049fbfa..0be6fd6a267d 100644
--- a/drivers/i2c/chips/tps65010.c
+++ b/drivers/i2c/chips/tps65010.c
@@ -43,13 +43,12 @@
 /*-------------------------------------------------------------------------*/
 
 #define DRIVER_VERSION  "2 May 2005"
-#define DRIVER_NAME     (tps65010_driver.name)
+#define DRIVER_NAME     (tps65010_driver.driver.name)
 
 MODULE_DESCRIPTION("TPS6501x Power Management Driver");
 MODULE_LICENSE("GPL");
 
 static unsigned short normal_i2c[] = { 0x48, /* 0x49, */ I2C_CLIENT_END };
-static unsigned short normal_i2c_range[] = { I2C_CLIENT_END };
 
 I2C_CLIENT_INSMOD;
 
@@ -100,7 +99,7 @@ struct tps65010 {
         /* not currently tracking GPIO state */
 };
 
-#define POWER_POLL_DELAY        msecs_to_jiffies(800)
+#define POWER_POLL_DELAY        msecs_to_jiffies(5000)
 
 /*-------------------------------------------------------------------------*/
 
@@ -520,8 +519,11 @@ tps65010_probe(struct i2c_adapter *bus, int address, int kind)
                 goto fail1;
         }
 
+        /* the IRQ is active low, but many gpio lines can't support that
+         * so this driver can use falling-edge triggers instead.
+         */
+        irqflags = IRQF_SAMPLE_RANDOM;
 #ifdef  CONFIG_ARM
-        irqflags = IRQF_SAMPLE_RANDOM | IRQF_TRIGGER_LOW;
         if (machine_is_omap_h2()) {
                 tps->model = TPS65010;
                 omap_cfg_reg(W4_GPIO58);
@@ -543,8 +545,6 @@ tps65010_probe(struct i2c_adapter *bus, int address, int kind)
 
                 // FIXME set up this board's IRQ ...
         }
-#else
-        irqflags = IRQF_SAMPLE_RANDOM;
 #endif
 
         if (tps->irq > 0) {
diff --git a/drivers/ieee1394/ohci1394.c b/drivers/ieee1394/ohci1394.c
index d4bad6704bbe..448df2773377 100644
--- a/drivers/ieee1394/ohci1394.c
+++ b/drivers/ieee1394/ohci1394.c
@@ -3552,6 +3552,8 @@ static int ohci1394_pci_resume (struct pci_dev *pdev)
 
 static int ohci1394_pci_suspend (struct pci_dev *pdev, pm_message_t state)
 {
+        pci_save_state(pdev);
+
 #ifdef CONFIG_PPC_PMAC
         if (machine_is(powermac)) {
                 struct device_node *of_node;
@@ -3563,8 +3565,6 @@ static int ohci1394_pci_suspend (struct pci_dev *pdev, pm_message_t state)
         }
 #endif
 
-        pci_save_state(pdev);
-
         return 0;
 }
 
diff --git a/drivers/infiniband/core/cache.c b/drivers/infiniband/core/cache.c
index e05ca2cdc73f..75313ade2e0d 100644
--- a/drivers/infiniband/core/cache.c
+++ b/drivers/infiniband/core/cache.c
@@ -301,7 +301,8 @@ static void ib_cache_event(struct ib_event_handler *handler,
             event->event == IB_EVENT_PORT_ACTIVE ||
             event->event == IB_EVENT_LID_CHANGE  ||
             event->event == IB_EVENT_PKEY_CHANGE ||
-            event->event == IB_EVENT_SM_CHANGE) {
+            event->event == IB_EVENT_SM_CHANGE   ||
+            event->event == IB_EVENT_CLIENT_REREGISTER) {
                 work = kmalloc(sizeof *work, GFP_ATOMIC);
                 if (work) {
                         INIT_WORK(&work->work, ib_cache_task, work);
diff --git a/drivers/infiniband/core/sa_query.c b/drivers/infiniband/core/sa_query.c
index aeda484ffd82..d6b84226bba7 100644
--- a/drivers/infiniband/core/sa_query.c
+++ b/drivers/infiniband/core/sa_query.c
@@ -405,7 +405,8 @@ static void ib_sa_event(struct ib_event_handler *handler, struct ib_event *event
             event->event == IB_EVENT_PORT_ACTIVE ||
             event->event == IB_EVENT_LID_CHANGE  ||
             event->event == IB_EVENT_PKEY_CHANGE ||
-            event->event == IB_EVENT_SM_CHANGE) {
+            event->event == IB_EVENT_SM_CHANGE   ||
+            event->event == IB_EVENT_CLIENT_REREGISTER) {
                 struct ib_sa_device *sa_dev;
                 sa_dev = container_of(handler, typeof(*sa_dev), event_handler);
 
diff --git a/drivers/infiniband/hw/mthca/mthca_main.c b/drivers/infiniband/hw/mthca/mthca_main.c
index 557cde3a4563..7b82c1907f04 100644
--- a/drivers/infiniband/hw/mthca/mthca_main.c
+++ b/drivers/infiniband/hw/mthca/mthca_main.c
@@ -967,12 +967,12 @@ static struct {
 } mthca_hca_table[] = {
         [TAVOR]        = { .latest_fw = MTHCA_FW_VER(3, 4, 0),
                            .flags     = 0 },
-        [ARBEL_COMPAT] = { .latest_fw = MTHCA_FW_VER(4, 7, 400),
+        [ARBEL_COMPAT] = { .latest_fw = MTHCA_FW_VER(4, 7, 600),
                            .flags     = MTHCA_FLAG_PCIE },
-        [ARBEL_NATIVE] = { .latest_fw = MTHCA_FW_VER(5, 1, 0),
+        [ARBEL_NATIVE] = { .latest_fw = MTHCA_FW_VER(5, 1, 400),
                            .flags     = MTHCA_FLAG_MEMFREE |
                                         MTHCA_FLAG_PCIE },
-        [SINAI]        = { .latest_fw = MTHCA_FW_VER(1, 0, 800),
+        [SINAI]        = { .latest_fw = MTHCA_FW_VER(1, 1, 0),
                            .flags     = MTHCA_FLAG_MEMFREE |
                                         MTHCA_FLAG_PCIE    |
                                         MTHCA_FLAG_SINAI_OPT }
diff --git a/drivers/infiniband/hw/mthca/mthca_provider.c b/drivers/infiniband/hw/mthca/mthca_provider.c
index 230ae21db8fd..265b1d1c4a62 100644
--- a/drivers/infiniband/hw/mthca/mthca_provider.c
+++ b/drivers/infiniband/hw/mthca/mthca_provider.c
@@ -1287,11 +1287,7 @@ int mthca_register_device(struct mthca_dev *dev)
                 (1ull << IB_USER_VERBS_CMD_MODIFY_QP)           |
                 (1ull << IB_USER_VERBS_CMD_DESTROY_QP)          |
                 (1ull << IB_USER_VERBS_CMD_ATTACH_MCAST)        |
-                (1ull << IB_USER_VERBS_CMD_DETACH_MCAST)        |
-                (1ull << IB_USER_VERBS_CMD_CREATE_SRQ)          |
-                (1ull << IB_USER_VERBS_CMD_MODIFY_SRQ)          |
-                (1ull << IB_USER_VERBS_CMD_QUERY_SRQ)           |
-                (1ull << IB_USER_VERBS_CMD_DESTROY_SRQ);
+                (1ull << IB_USER_VERBS_CMD_DETACH_MCAST);
         dev->ib_dev.node_type            = IB_NODE_CA;
         dev->ib_dev.phys_port_cnt        = dev->limits.num_ports;
         dev->ib_dev.dma_device           = &dev->pdev->dev;
@@ -1316,6 +1312,11 @@ int mthca_register_device(struct mthca_dev *dev)
                 dev->ib_dev.modify_srq           = mthca_modify_srq;
                 dev->ib_dev.query_srq            = mthca_query_srq;
                 dev->ib_dev.destroy_srq          = mthca_destroy_srq;
+                dev->ib_dev.uverbs_cmd_mask     |=
+                        (1ull << IB_USER_VERBS_CMD_CREATE_SRQ)          |
+                        (1ull << IB_USER_VERBS_CMD_MODIFY_SRQ)          |
+                        (1ull << IB_USER_VERBS_CMD_QUERY_SRQ)           |
+                        (1ull << IB_USER_VERBS_CMD_DESTROY_SRQ);
 
                 if (mthca_is_memfree(dev))
                         dev->ib_dev.post_srq_recv = mthca_arbel_post_srq_recv;
diff --git a/drivers/infiniband/hw/mthca/mthca_provider.h b/drivers/infiniband/hw/mthca/mthca_provider.h
index 8de2887ba15c..9a5bece3fa5c 100644
--- a/drivers/infiniband/hw/mthca/mthca_provider.h
+++ b/drivers/infiniband/hw/mthca/mthca_provider.h
@@ -136,8 +136,8 @@ struct mthca_ah {
  * We have one global lock that protects dev->cq/qp_table.  Each
  * struct mthca_cq/qp also has its own lock.  An individual qp lock
  * may be taken inside of an individual cq lock.  Both cqs attached to
- * a qp may be locked, with the send cq locked first.  No other
- * nesting should be done.
+ * a qp may be locked, with the cq with the lower cqn locked first.
+ * No other nesting should be done.
  *
  * Each struct mthca_cq/qp also has an ref count, protected by the
  * corresponding table lock.  The pointer from the cq/qp_table to the
diff --git a/drivers/infiniband/hw/mthca/mthca_qp.c b/drivers/infiniband/hw/mthca/mthca_qp.c
index cd8b6721ac9c..2e8f6f36e0a5 100644
--- a/drivers/infiniband/hw/mthca/mthca_qp.c
+++ b/drivers/infiniband/hw/mthca/mthca_qp.c
@@ -99,6 +99,10 @@ enum {
         MTHCA_QP_BIT_RSC = 1 <<  3
 };
 
+enum {
+        MTHCA_SEND_DOORBELL_FENCE = 1 << 5
+};
+
 struct mthca_qp_path {
         __be32 port_pkey;
         u8     rnr_retry;
@@ -1259,6 +1263,32 @@ int mthca_alloc_qp(struct mthca_dev *dev,
         return 0;
 }
 
+static void mthca_lock_cqs(struct mthca_cq *send_cq, struct mthca_cq *recv_cq)
+{
+        if (send_cq == recv_cq)
+                spin_lock_irq(&send_cq->lock);
+        else if (send_cq->cqn < recv_cq->cqn) {
+                spin_lock_irq(&send_cq->lock);
+                spin_lock_nested(&recv_cq->lock, SINGLE_DEPTH_NESTING);
+        } else {
+                spin_lock_irq(&recv_cq->lock);
+                spin_lock_nested(&send_cq->lock, SINGLE_DEPTH_NESTING);
+        }
+}
+
+static void mthca_unlock_cqs(struct mthca_cq *send_cq, struct mthca_cq *recv_cq)
+{
+        if (send_cq == recv_cq)
+                spin_unlock_irq(&send_cq->lock);
+        else if (send_cq->cqn < recv_cq->cqn) {
+                spin_unlock(&recv_cq->lock);
+                spin_unlock_irq(&send_cq->lock);
+        } else {
+                spin_unlock(&send_cq->lock);
+                spin_unlock_irq(&recv_cq->lock);
+        }
+}
+
 int mthca_alloc_sqp(struct mthca_dev *dev,
                     struct mthca_pd *pd,
                     struct mthca_cq *send_cq,
@@ -1311,17 +1341,13 @@ int mthca_alloc_sqp(struct mthca_dev *dev,
          * Lock CQs here, so that CQ polling code can do QP lookup
          * without taking a lock.
          */
-        spin_lock_irq(&send_cq->lock);
-        if (send_cq != recv_cq)
-                spin_lock(&recv_cq->lock);
+        mthca_lock_cqs(send_cq, recv_cq);
 
         spin_lock(&dev->qp_table.lock);
         mthca_array_clear(&dev->qp_table.qp, mqpn);
         spin_unlock(&dev->qp_table.lock);
 
-        if (send_cq != recv_cq)
-                spin_unlock(&recv_cq->lock);
-        spin_unlock_irq(&send_cq->lock);
+        mthca_unlock_cqs(send_cq, recv_cq);
 
  err_out:
         dma_free_coherent(&dev->pdev->dev, sqp->header_buf_size,
@@ -1355,9 +1381,7 @@ void mthca_free_qp(struct mthca_dev *dev,
          * Lock CQs here, so that CQ polling code can do QP lookup
          * without taking a lock.
          */
-        spin_lock_irq(&send_cq->lock);
-        if (send_cq != recv_cq)
-                spin_lock(&recv_cq->lock);
+        mthca_lock_cqs(send_cq, recv_cq);
 
         spin_lock(&dev->qp_table.lock);
         mthca_array_clear(&dev->qp_table.qp,
@@ -1365,9 +1389,7 @@ void mthca_free_qp(struct mthca_dev *dev,
         --qp->refcount;
         spin_unlock(&dev->qp_table.lock);
 
-        if (send_cq != recv_cq)
-                spin_unlock(&recv_cq->lock);
-        spin_unlock_irq(&send_cq->lock);
+        mthca_unlock_cqs(send_cq, recv_cq);
 
         wait_event(qp->wait, !get_qp_refcount(dev, qp));
 
@@ -1502,7 +1524,7 @@ int mthca_tavor_post_send(struct ib_qp *ibqp, struct ib_send_wr *wr,
         int i;
         int size;
         int size0 = 0;
-        u32 f0 = 0;
+        u32 f0;
         int ind;
         u8 op0 = 0;
 
@@ -1686,6 +1708,8 @@ int mthca_tavor_post_send(struct ib_qp *ibqp, struct ib_send_wr *wr,
                 if (!size0) {
                         size0 = size;
                         op0   = mthca_opcode[wr->opcode];
+                        f0    = wr->send_flags & IB_SEND_FENCE ?
+                                MTHCA_SEND_DOORBELL_FENCE : 0;
                 }
 
                 ++ind;
@@ -1843,7 +1867,7 @@ int mthca_arbel_post_send(struct ib_qp *ibqp, struct ib_send_wr *wr,
         int i;
         int size;
         int size0 = 0;
-        u32 f0 = 0;
+        u32 f0;
         int ind;
         u8 op0 = 0;
 
@@ -2051,6 +2075,8 @@ int mthca_arbel_post_send(struct ib_qp *ibqp, struct ib_send_wr *wr,
                 if (!size0) {
                         size0 = size;
                         op0   = mthca_opcode[wr->opcode];
+                        f0    = wr->send_flags & IB_SEND_FENCE ?
+                                MTHCA_SEND_DOORBELL_FENCE : 0;
                 }
 
                 ++ind;
diff --git a/drivers/infiniband/ulp/iser/iscsi_iser.c b/drivers/infiniband/ulp/iser/iscsi_iser.c
index 34b0da5cfa0a..1437d7ee3b19 100644
--- a/drivers/infiniband/ulp/iser/iscsi_iser.c
+++ b/drivers/infiniband/ulp/iser/iscsi_iser.c
@@ -378,21 +378,6 @@ iscsi_iser_conn_start(struct iscsi_cls_conn *cls_conn)
         return iser_conn_set_full_featured_mode(conn);
 }
 
-static void
-iscsi_iser_conn_terminate(struct iscsi_conn *conn)
-{
-        struct iscsi_iser_conn *iser_conn = conn->dd_data;
-        struct iser_conn *ib_conn = iser_conn->ib_conn;
-
-        BUG_ON(!ib_conn);
-        /* starts conn teardown process, waits until all previously   *
-         * posted buffers get flushed, deallocates all conn resources */
-        iser_conn_terminate(ib_conn);
-        iser_conn->ib_conn = NULL;
-        conn->recv_lock = NULL;
-}
-
-
 static struct iscsi_transport iscsi_iser_transport;
 
 static struct iscsi_cls_session *
@@ -555,13 +540,13 @@ iscsi_iser_ep_poll(__u64 ep_handle, int timeout_ms)
 static void
 iscsi_iser_ep_disconnect(__u64 ep_handle)
 {
-        struct iser_conn *ib_conn = iscsi_iser_ib_conn_lookup(ep_handle);
+        struct iser_conn *ib_conn;
 
+        ib_conn = iscsi_iser_ib_conn_lookup(ep_handle);
         if (!ib_conn)
                 return;
 
         iser_err("ib conn %p state %d\n",ib_conn, ib_conn->state);
-
         iser_conn_terminate(ib_conn);
 }
 
@@ -614,9 +599,6 @@ static struct iscsi_transport iscsi_iser_transport = {
         .get_session_param      = iscsi_session_get_param,
         .start_conn             = iscsi_iser_conn_start,
         .stop_conn              = iscsi_conn_stop,
-        /* these are called as part of conn recovery */
-        .suspend_conn_recv      = NULL, /* FIXME is/how this relvant to iser? */
-        .terminate_conn         = iscsi_iser_conn_terminate,
         /* IO */
         .send_pdu               = iscsi_conn_send_pdu,
         .get_stats              = iscsi_iser_conn_get_stats,
diff --git a/drivers/input/keyboard/atkbd.c b/drivers/input/keyboard/atkbd.c
index 6bfa0cf4b1d2..a86afd0a5ef1 100644
--- a/drivers/input/keyboard/atkbd.c
+++ b/drivers/input/keyboard/atkbd.c
@@ -498,7 +498,7 @@ static int atkbd_set_repeat_rate(struct atkbd *atkbd)
                 i++;
         dev->rep[REP_PERIOD] = period[i];
 
-        while (j < ARRAY_SIZE(period) - 1 && delay[j] < dev->rep[REP_DELAY])
+        while (j < ARRAY_SIZE(delay) - 1 && delay[j] < dev->rep[REP_DELAY])
                 j++;
         dev->rep[REP_DELAY] = delay[j];
 
diff --git a/drivers/input/misc/wistron_btns.c b/drivers/input/misc/wistron_btns.c
index a8efc1af36cb..de0f46dd9692 100644
--- a/drivers/input/misc/wistron_btns.c
+++ b/drivers/input/misc/wistron_btns.c
@@ -259,11 +259,11 @@ static int __init dmi_matched(struct dmi_system_id *dmi)
         return 1;
 }
 
-static struct key_entry keymap_empty[] __initdata = {
+static struct key_entry keymap_empty[] = {
         { KE_END, 0 }
 };
 
-static struct key_entry keymap_fs_amilo_pro_v2000[] __initdata = {
+static struct key_entry keymap_fs_amilo_pro_v2000[] = {
         { KE_KEY,  0x01, KEY_HELP },
         { KE_KEY,  0x11, KEY_PROG1 },
         { KE_KEY,  0x12, KEY_PROG2 },
@@ -273,7 +273,7 @@ static struct key_entry keymap_fs_amilo_pro_v2000[] __initdata = {
         { KE_END,  0 }
 };
 
-static struct key_entry keymap_fujitsu_n3510[] __initdata = {
+static struct key_entry keymap_fujitsu_n3510[] = {
         { KE_KEY, 0x11, KEY_PROG1 },
         { KE_KEY, 0x12, KEY_PROG2 },
         { KE_KEY, 0x36, KEY_WWW },
@@ -285,7 +285,7 @@ static struct key_entry keymap_fujitsu_n3510[] __initdata = {
         { KE_END, 0 }
 };
 
-static struct key_entry keymap_wistron_ms2111[] __initdata = {
+static struct key_entry keymap_wistron_ms2111[] = {
         { KE_KEY,  0x11, KEY_PROG1 },
         { KE_KEY,  0x12, KEY_PROG2 },
         { KE_KEY,  0x13, KEY_PROG3 },
@@ -294,7 +294,7 @@ static struct key_entry keymap_wistron_ms2111[] __initdata = {
         { KE_END,  0 }
 };
 
-static struct key_entry keymap_wistron_ms2141[] __initdata = {
+static struct key_entry keymap_wistron_ms2141[] = {
         { KE_KEY,  0x11, KEY_PROG1 },
         { KE_KEY,  0x12, KEY_PROG2 },
         { KE_WIFI, 0x30, 0 },
@@ -307,7 +307,7 @@ static struct key_entry keymap_wistron_ms2141[] __initdata = {
         { KE_END,  0 }
 };
 
-static struct key_entry keymap_acer_aspire_1500[] __initdata = {
+static struct key_entry keymap_acer_aspire_1500[] = {
         { KE_KEY, 0x11, KEY_PROG1 },
         { KE_KEY, 0x12, KEY_PROG2 },
         { KE_WIFI, 0x30, 0 },
@@ -317,7 +317,7 @@ static struct key_entry keymap_acer_aspire_1500[] __initdata = {
         { KE_END, 0 }
 };
 
-static struct key_entry keymap_acer_travelmate_240[] __initdata = {
+static struct key_entry keymap_acer_travelmate_240[] = {
         { KE_KEY, 0x31, KEY_MAIL },
         { KE_KEY, 0x36, KEY_WWW },
         { KE_KEY, 0x11, KEY_PROG1 },
@@ -327,7 +327,7 @@ static struct key_entry keymap_acer_travelmate_240[] __initdata = {
         { KE_END, 0 }
 };
 
-static struct key_entry keymap_aopen_1559as[] __initdata = {
+static struct key_entry keymap_aopen_1559as[] = {
         { KE_KEY,  0x01, KEY_HELP },
         { KE_KEY,  0x06, KEY_PROG3 },
         { KE_KEY,  0x11, KEY_PROG1 },
diff --git a/drivers/input/mouse/psmouse-base.c b/drivers/input/mouse/psmouse-base.c
index 8bc9f51ae6c2..343afa38f4c2 100644
--- a/drivers/input/mouse/psmouse-base.c
+++ b/drivers/input/mouse/psmouse-base.c
@@ -485,13 +485,6 @@ static int im_explorer_detect(struct psmouse *psmouse, int set_properties)
         param[0] =  40;
         ps2_command(ps2dev, param, PSMOUSE_CMD_SETRATE);
 
-        param[0] = 200;
-        ps2_command(ps2dev, param, PSMOUSE_CMD_SETRATE);
-        param[0] = 200;
-        ps2_command(ps2dev, param, PSMOUSE_CMD_SETRATE);
-        param[0] =  60;
-        ps2_command(ps2dev, param, PSMOUSE_CMD_SETRATE);
-
         if (set_properties) {
                 set_bit(BTN_MIDDLE, psmouse->dev->keybit);
                 set_bit(REL_WHEEL, psmouse->dev->relbit);
diff --git a/drivers/md/dm-raid1.c b/drivers/md/dm-raid1.c
index be48cedf986b..c54de989eb00 100644
--- a/drivers/md/dm-raid1.c
+++ b/drivers/md/dm-raid1.c
@@ -255,7 +255,9 @@ static struct region *__rh_alloc(struct region_hash *rh, region_t region)
         struct region *reg, *nreg;
 
         read_unlock(&rh->hash_lock);
-        nreg = mempool_alloc(rh->region_pool, GFP_NOIO);
+        nreg = mempool_alloc(rh->region_pool, GFP_ATOMIC);
+        if (unlikely(!nreg))
+                nreg = kmalloc(sizeof(struct region), GFP_NOIO);
         nreg->state = rh->log->type->in_sync(rh->log, region, 1) ?
                 RH_CLEAN : RH_NOSYNC;
         nreg->rh = rh;
diff --git a/drivers/md/md.c b/drivers/md/md.c
index b6d16022a53e..8dbab2ef3885 100644
--- a/drivers/md/md.c
+++ b/drivers/md/md.c
@@ -1597,6 +1597,19 @@ void md_update_sb(mddev_t * mddev)
 
 repeat:
         spin_lock_irq(&mddev->write_lock);
+
+        if (mddev->degraded && mddev->sb_dirty == 3)
+                /* If the array is degraded, then skipping spares is both
+                 * dangerous and fairly pointless.
+                 * Dangerous because a device that was removed from the array
+                 * might have a event_count that still looks up-to-date,
+                 * so it can be re-added without a resync.
+                 * Pointless because if there are any spares to skip,
+                 * then a recovery will happen and soon that array won't
+                 * be degraded any more and the spare can go back to sleep then.
+                 */
+                mddev->sb_dirty = 1;
+
         sync_req = mddev->in_sync;
         mddev->utime = get_seconds();
         if (mddev->sb_dirty == 3)
diff --git a/drivers/md/raid1.c b/drivers/md/raid1.c
index 1efe22a2d041..87bfe9e7d8ca 100644
--- a/drivers/md/raid1.c
+++ b/drivers/md/raid1.c
@@ -1625,15 +1625,16 @@ static sector_t sync_request(mddev_t *mddev, sector_t sector_nr, int *skipped, i
                 return 0;
         }
 
-        /* before building a request, check if we can skip these blocks..
-         * This call the bitmap_start_sync doesn't actually record anything
-         */
         if (mddev->bitmap == NULL &&
             mddev->recovery_cp == MaxSector &&
+            !test_bit(MD_RECOVERY_REQUESTED, &mddev->recovery) &&
             conf->fullsync == 0) {
                 *skipped = 1;
                 return max_sector - sector_nr;
         }
+        /* before building a request, check if we can skip these blocks..
+         * This call the bitmap_start_sync doesn't actually record anything
+         */
         if (!bitmap_start_sync(mddev->bitmap, sector_nr, &sync_blocks, 1) &&
             !conf->fullsync && !test_bit(MD_RECOVERY_REQUESTED, &mddev->recovery)) {
                 /* We can skip this block, and probably several more */
diff --git a/drivers/message/fusion/mptbase.h b/drivers/message/fusion/mptbase.h
index d4cb144ab402..c537d71c18e4 100644
--- a/drivers/message/fusion/mptbase.h
+++ b/drivers/message/fusion/mptbase.h
@@ -640,7 +640,6 @@ typedef struct _MPT_ADAPTER
         struct work_struct       fc_setup_reset_work;
         struct list_head         fc_rports;
         spinlock_t               fc_rescan_work_lock;
-        int                      fc_rescan_work_count;
         struct work_struct       fc_rescan_work;
         char                     fc_rescan_work_q_name[KOBJ_NAME_LEN];
         struct workqueue_struct *fc_rescan_work_q;
diff --git a/drivers/message/fusion/mptfc.c b/drivers/message/fusion/mptfc.c
index 90da7d63b08e..85696f34c310 100644
--- a/drivers/message/fusion/mptfc.c
+++ b/drivers/message/fusion/mptfc.c
@@ -669,7 +669,10 @@ mptfc_GetFcPortPage0(MPT_ADAPTER *ioc, int portnum)
                          * if still doing discovery,
                          * hang loose a while until finished
                          */
-                        if (pp0dest->PortState == MPI_FCPORTPAGE0_PORTSTATE_UNKNOWN) {
+                        if ((pp0dest->PortState == MPI_FCPORTPAGE0_PORTSTATE_UNKNOWN) ||
+                            (pp0dest->PortState == MPI_FCPORTPAGE0_PORTSTATE_ONLINE &&
+                             (pp0dest->Flags & MPI_FCPORTPAGE0_FLAGS_ATTACH_TYPE_MASK)
+                              == MPI_FCPORTPAGE0_FLAGS_ATTACH_NO_INIT)) {
                                 if (count-- > 0) {
                                         msleep(100);
                                         goto try_again;
@@ -895,59 +898,45 @@ mptfc_rescan_devices(void *arg)
 {
         MPT_ADAPTER             *ioc = (MPT_ADAPTER *)arg;
         int                     ii;
-        int                     work_to_do;
         u64                     pn;
-        unsigned long           flags;
         struct mptfc_rport_info *ri;
 
-        do {
-                /* start by tagging all ports as missing */
-                list_for_each_entry(ri, &ioc->fc_rports, list) {
-                        if (ri->flags & MPT_RPORT_INFO_FLAGS_REGISTERED) {
-                                ri->flags |= MPT_RPORT_INFO_FLAGS_MISSING;
-                        }
+        /* start by tagging all ports as missing */
+        list_for_each_entry(ri, &ioc->fc_rports, list) {
+                if (ri->flags & MPT_RPORT_INFO_FLAGS_REGISTERED) {
+                        ri->flags |= MPT_RPORT_INFO_FLAGS_MISSING;
                 }
+        }
 
-                /*
-                 * now rescan devices known to adapter,
-                 * will reregister existing rports
-                 */
-                for (ii=0; ii < ioc->facts.NumberOfPorts; ii++) {
-                        (void) mptfc_GetFcPortPage0(ioc, ii);
-                        mptfc_init_host_attr(ioc,ii);   /* refresh */
-                        mptfc_GetFcDevPage0(ioc,ii,mptfc_register_dev);
-                }
+        /*
+         * now rescan devices known to adapter,
+         * will reregister existing rports
+         */
+        for (ii=0; ii < ioc->facts.NumberOfPorts; ii++) {
+                (void) mptfc_GetFcPortPage0(ioc, ii);
+                mptfc_init_host_attr(ioc, ii);  /* refresh */
+                mptfc_GetFcDevPage0(ioc, ii, mptfc_register_dev);
+        }
 
-                /* delete devices still missing */
-                list_for_each_entry(ri, &ioc->fc_rports, list) {
-                        /* if newly missing, delete it */
-                        if (ri->flags & MPT_RPORT_INFO_FLAGS_MISSING) {
+        /* delete devices still missing */
+        list_for_each_entry(ri, &ioc->fc_rports, list) {
+                /* if newly missing, delete it */
+                if (ri->flags & MPT_RPORT_INFO_FLAGS_MISSING) {
 
-                                ri->flags &= ~(MPT_RPORT_INFO_FLAGS_REGISTERED|
-                                               MPT_RPORT_INFO_FLAGS_MISSING);
-                                fc_remote_port_delete(ri->rport);       /* won't sleep */
-                                ri->rport = NULL;
+                        ri->flags &= ~(MPT_RPORT_INFO_FLAGS_REGISTERED|
+                                       MPT_RPORT_INFO_FLAGS_MISSING);
+                        fc_remote_port_delete(ri->rport);       /* won't sleep */
+                        ri->rport = NULL;
 
-                                pn = (u64)ri->pg0.WWPN.High << 32 |
-                                     (u64)ri->pg0.WWPN.Low;
-                                dfcprintk ((MYIOC_s_INFO_FMT
-                                        "mptfc_rescan.%d: %llx deleted\n",
-                                        ioc->name,
-                                        ioc->sh->host_no,
-                                        (unsigned long long)pn));
-                        }
+                        pn = (u64)ri->pg0.WWPN.High << 32 |
+                             (u64)ri->pg0.WWPN.Low;
+                        dfcprintk ((MYIOC_s_INFO_FMT
+                                "mptfc_rescan.%d: %llx deleted\n",
+                                ioc->name,
+                                ioc->sh->host_no,
+                                (unsigned long long)pn));
                 }
-
-                /*
-                 * allow multiple passes as target state
-                 * might have changed during scan
-                 */
-                spin_lock_irqsave(&ioc->fc_rescan_work_lock, flags);
-                if (ioc->fc_rescan_work_count > 2)      /* only need one more */
-                        ioc->fc_rescan_work_count = 2;
-                work_to_do = --ioc->fc_rescan_work_count;
-                spin_unlock_irqrestore(&ioc->fc_rescan_work_lock, flags);
-        } while (work_to_do);
+        }
 }
 
 static int
@@ -1159,7 +1148,6 @@ mptfc_probe(struct pci_dev *pdev, const struct pci_device_id *id)
          *      by doing it via the workqueue, some locking is eliminated
          */
 
-        ioc->fc_rescan_work_count = 1;
         queue_work(ioc->fc_rescan_work_q, &ioc->fc_rescan_work);
         flush_workqueue(ioc->fc_rescan_work_q);
 
@@ -1202,10 +1190,8 @@ mptfc_event_process(MPT_ADAPTER *ioc, EventNotificationReply_t *pEvReply)
         case MPI_EVENT_RESCAN:
                 spin_lock_irqsave(&ioc->fc_rescan_work_lock, flags);
                 if (ioc->fc_rescan_work_q) {
-                        if (ioc->fc_rescan_work_count++ == 0) {
-                                queue_work(ioc->fc_rescan_work_q,
-                                           &ioc->fc_rescan_work);
-                        }
+                        queue_work(ioc->fc_rescan_work_q,
+                                   &ioc->fc_rescan_work);
                 }
                 spin_unlock_irqrestore(&ioc->fc_rescan_work_lock, flags);
                 break;
@@ -1248,10 +1234,8 @@ mptfc_ioc_reset(MPT_ADAPTER *ioc, int reset_phase)
                 mptfc_SetFcPortPage1_defaults(ioc);
                 spin_lock_irqsave(&ioc->fc_rescan_work_lock, flags);
                 if (ioc->fc_rescan_work_q) {
-                        if (ioc->fc_rescan_work_count++ == 0) {
-                                queue_work(ioc->fc_rescan_work_q,
-                                           &ioc->fc_rescan_work);
-                        }
+                        queue_work(ioc->fc_rescan_work_q,
+                                   &ioc->fc_rescan_work);
                 }
                 spin_unlock_irqrestore(&ioc->fc_rescan_work_lock, flags);
         }
diff --git a/drivers/mtd/nand/ams-delta.c b/drivers/mtd/nand/ams-delta.c
index d7897dc6b3c8..a0ba07c36ee9 100644
--- a/drivers/mtd/nand/ams-delta.c
+++ b/drivers/mtd/nand/ams-delta.c
@@ -130,11 +130,13 @@ static void ams_delta_hwcontrol(struct mtd_info *mtd, int cmd,
         if (ctrl & NAND_CTRL_CHANGE) {
                 unsigned long bits;
 
-                bits = (~ctrl & NAND_NCE) << 2;
-                bits |= (ctrl & NAND_CLE) << 7;
-                bits |= (ctrl & NAND_ALE) << 6;
+                bits = (~ctrl & NAND_NCE) ? AMS_DELTA_LATCH2_NAND_NCE : 0;
+                bits |= (ctrl & NAND_CLE) ? AMS_DELTA_LATCH2_NAND_CLE : 0;
+                bits |= (ctrl & NAND_ALE) ? AMS_DELTA_LATCH2_NAND_ALE : 0;
 
-                ams_delta_latch2_write(0xC2, bits);
+                ams_delta_latch2_write(AMS_DELTA_LATCH2_NAND_CLE |
+                                AMS_DELTA_LATCH2_NAND_ALE |
+                                AMS_DELTA_LATCH2_NAND_NCE, bits);
         }
 
         if (cmd != NAND_CMD_NONE)
diff --git a/drivers/mtd/nand/nand_base.c b/drivers/mtd/nand/nand_base.c
index 62b861304e03..c8cbc00243fe 100644
--- a/drivers/mtd/nand/nand_base.c
+++ b/drivers/mtd/nand/nand_base.c
@@ -1093,9 +1093,10 @@ static int nand_read(struct mtd_info *mtd, loff_t from, size_t len,
 
         ret = nand_do_read_ops(mtd, from, &chip->ops);
 
+        *retlen = chip->ops.retlen;
+
         nand_release_device(mtd);
 
-        *retlen = chip->ops.retlen;
         return ret;
 }
 
@@ -1691,9 +1692,10 @@ static int nand_write(struct mtd_info *mtd, loff_t to, size_t len,
 
         ret = nand_do_write_ops(mtd, to, &chip->ops);
 
+        *retlen = chip->ops.retlen;
+
         nand_release_device(mtd);
 
-        *retlen = chip->ops.retlen;
         return ret;
 }
 
diff --git a/drivers/pci/hotplug/Kconfig b/drivers/pci/hotplug/Kconfig
index 3c148eaf2f4d..8a60f391ffcf 100644
--- a/drivers/pci/hotplug/Kconfig
+++ b/drivers/pci/hotplug/Kconfig
@@ -76,7 +76,7 @@ config HOTPLUG_PCI_IBM
 
 config HOTPLUG_PCI_ACPI
         tristate "ACPI PCI Hotplug driver"
-        depends on ACPI_DOCK && HOTPLUG_PCI
+        depends on (!ACPI_DOCK && ACPI && HOTPLUG_PCI) || (ACPI_DOCK && HOTPLUG_PCI)
         help
           Say Y here if you have a system that supports PCI Hotplug using
           ACPI.
diff --git a/drivers/pci/hotplug/cpci_hotplug_pci.c b/drivers/pci/hotplug/cpci_hotplug_pci.c
index 02be74caa89f..4afcaffd031c 100644
--- a/drivers/pci/hotplug/cpci_hotplug_pci.c
+++ b/drivers/pci/hotplug/cpci_hotplug_pci.c
@@ -254,8 +254,8 @@ int cpci_led_off(struct slot* slot)
 
 int cpci_configure_slot(struct slot* slot)
 {
-        unsigned char busnr;
-        struct pci_bus *child;
+        struct pci_bus *parent;
+        int fn;
 
         dbg("%s - enter", __FUNCTION__);
 
@@ -276,23 +276,53 @@ int cpci_configure_slot(struct slot* slot)
                  */
                 n = pci_scan_slot(slot->bus, slot->devfn);
                 dbg("%s: pci_scan_slot returned %d", __FUNCTION__, n);
-                if (n > 0)
-                        pci_bus_add_devices(slot->bus);
                 slot->dev = pci_get_slot(slot->bus, slot->devfn);
                 if (slot->dev == NULL) {
                         err("Could not find PCI device for slot %02x", slot->number);
-                        return 1;
+                        return -ENODEV;
                 }
         }
-
-        if (slot->dev->hdr_type == PCI_HEADER_TYPE_BRIDGE) {
-                pci_read_config_byte(slot->dev, PCI_SECONDARY_BUS, &busnr);
-                child = pci_add_new_bus(slot->dev->bus, slot->dev, busnr);
-                pci_do_scan_bus(child);
-                pci_bus_size_bridges(child);
+        parent = slot->dev->bus;
+
+        for (fn = 0; fn < 8; fn++) {
+                struct pci_dev *dev;
+
+                dev = pci_get_slot(parent, PCI_DEVFN(PCI_SLOT(slot->devfn), fn));
+                if (!dev)
+                        continue;
+                if ((dev->hdr_type == PCI_HEADER_TYPE_BRIDGE) ||
+                    (dev->hdr_type == PCI_HEADER_TYPE_CARDBUS)) {
+                        /* Find an unused bus number for the new bridge */
+                        struct pci_bus *child;
+                        unsigned char busnr, start = parent->secondary;
+                        unsigned char end = parent->subordinate;
+
+                        for (busnr = start; busnr <= end; busnr++) {
+                                if (!pci_find_bus(pci_domain_nr(parent),
+                                                  busnr))
+                                        break;
+                        }
+                        if (busnr >= end) {
+                                err("No free bus for hot-added bridge\n");
+                                pci_dev_put(dev);
+                                continue;
+                        }
+                        child = pci_add_new_bus(parent, dev, busnr);
+                        if (!child) {
+                                err("Cannot add new bus for %s\n",
+                                    pci_name(dev));
+                                pci_dev_put(dev);
+                                continue;
+                        }
+                        child->subordinate = pci_do_scan_bus(child);
+                        pci_bus_size_bridges(child);
+                }
+                pci_dev_put(dev);
         }
 
-        pci_bus_assign_resources(slot->dev->bus);
+        pci_bus_assign_resources(parent);
+        pci_bus_add_devices(parent);
+        pci_enable_bridges(parent);
 
         dbg("%s - exit", __FUNCTION__);
         return 0;
diff --git a/drivers/pci/pci-driver.c b/drivers/pci/pci-driver.c
index 10e1a905c144..474e9cd0e9e4 100644
--- a/drivers/pci/pci-driver.c
+++ b/drivers/pci/pci-driver.c
@@ -139,9 +139,8 @@ const struct pci_device_id *pci_match_id(const struct pci_device_id *ids,
 /**
  * pci_match_device - Tell if a PCI device structure has a matching
  *                    PCI device id structure
- * @ids: array of PCI device id structures to search in
- * @dev: the PCI device structure to match against
  * @drv: the PCI driver to match against
+ * @dev: the PCI device structure to match against
  *
  * Used by a driver to check whether a PCI device present in the
  * system is in its list of supported devices.  Returns the matching
diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c
index fb08bc951ac0..73177429fe74 100644
--- a/drivers/pci/quirks.c
+++ b/drivers/pci/quirks.c
@@ -438,6 +438,7 @@ static void __devinit quirk_ich6_lpc_acpi(struct pci_dev *dev)
         pci_read_config_dword(dev, 0x48, &region);
         quirk_io_region(dev, region, 64, PCI_BRIDGE_RESOURCES+1, "ICH6 GPIO");
 }
+DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL,   PCI_DEVICE_ID_INTEL_ICH6_0, quirk_ich6_lpc_acpi );
 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL,   PCI_DEVICE_ID_INTEL_ICH6_1, quirk_ich6_lpc_acpi );
 
 /*
@@ -1091,7 +1092,6 @@ DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL,	PCI_DEVICE_ID_INTEL_82801CA_0,	asu
 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL,   PCI_DEVICE_ID_INTEL_82801CA_12, asus_hides_smbus_lpc );
 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL,   PCI_DEVICE_ID_INTEL_82801DB_12, asus_hides_smbus_lpc );
 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL,   PCI_DEVICE_ID_INTEL_82801EB_0,  asus_hides_smbus_lpc );
-DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL,   PCI_DEVICE_ID_INTEL_ICH6_1,     asus_hides_smbus_lpc );
 
 static void __init asus_hides_smbus_lpc_ich6(struct pci_dev *dev)
 {
@@ -1518,6 +1518,63 @@ static void __devinit quirk_netmos(struct pci_dev *dev)
 }
 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_NETMOS, PCI_ANY_ID, quirk_netmos);
 
+static void __devinit quirk_e100_interrupt(struct pci_dev *dev)
+{
+        u16 command;
+        u32 bar;
+        u8 __iomem *csr;
+        u8 cmd_hi;
+
+        switch (dev->device) {
+        /* PCI IDs taken from drivers/net/e100.c */
+        case 0x1029:
+        case 0x1030 ... 0x1034:
+        case 0x1038 ... 0x103E:
+        case 0x1050 ... 0x1057:
+        case 0x1059:
+        case 0x1064 ... 0x106B:
+        case 0x1091 ... 0x1095:
+        case 0x1209:
+        case 0x1229:
+        case 0x2449:
+        case 0x2459:
+        case 0x245D:
+        case 0x27DC:
+                break;
+        default:
+                return;
+        }
+
+        /*
+         * Some firmware hands off the e100 with interrupts enabled,
+         * which can cause a flood of interrupts if packets are
+         * received before the driver attaches to the device.  So
+         * disable all e100 interrupts here.  The driver will
+         * re-enable them when it's ready.
+         */
+        pci_read_config_word(dev, PCI_COMMAND, &command);
+        pci_read_config_dword(dev, PCI_BASE_ADDRESS_0, &bar);
+
+        if (!(command & PCI_COMMAND_MEMORY) || !bar)
+                return;
+
+        csr = ioremap(bar, 8);
+        if (!csr) {
+                printk(KERN_WARNING "PCI: Can't map %s e100 registers\n",
+                        pci_name(dev));
+                return;
+        }
+
+        cmd_hi = readb(csr + 3);
+        if (cmd_hi == 0) {
+                printk(KERN_WARNING "PCI: Firmware left %s e100 interrupts "
+                        "enabled, disabling\n", pci_name(dev));
+                writeb(1, csr + 3);
+        }
+
+        iounmap(csr);
+}
+DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, PCI_ANY_ID, quirk_e100_interrupt);
 
 static void __devinit fixup_rev1_53c810(struct pci_dev* dev)
 {
diff --git a/drivers/rtc/rtc-s3c.c b/drivers/rtc/rtc-s3c.c
index d6d1bff52b8e..2c7de79c83b9 100644
--- a/drivers/rtc/rtc-s3c.c
+++ b/drivers/rtc/rtc-s3c.c
@@ -69,12 +69,12 @@ static void s3c_rtc_setaie(int to)
 
         pr_debug("%s: aie=%d\n", __FUNCTION__, to);
 
-        tmp = readb(S3C2410_RTCALM) & ~S3C2410_RTCALM_ALMEN;
+        tmp = readb(s3c_rtc_base + S3C2410_RTCALM) & ~S3C2410_RTCALM_ALMEN;
 
         if (to)
                 tmp |= S3C2410_RTCALM_ALMEN;
 
-        writeb(tmp, S3C2410_RTCALM);
+        writeb(tmp, s3c_rtc_base + S3C2410_RTCALM);
 }
 
 static void s3c_rtc_setpie(int to)
@@ -84,12 +84,12 @@ static void s3c_rtc_setpie(int to)
         pr_debug("%s: pie=%d\n", __FUNCTION__, to);
 
         spin_lock_irq(&s3c_rtc_pie_lock);
-        tmp = readb(S3C2410_TICNT) & ~S3C2410_TICNT_ENABLE;
+        tmp = readb(s3c_rtc_base + S3C2410_TICNT) & ~S3C2410_TICNT_ENABLE;
 
         if (to)
                 tmp |= S3C2410_TICNT_ENABLE;
 
-        writeb(tmp, S3C2410_TICNT);
+        writeb(tmp, s3c_rtc_base + S3C2410_TICNT);
         spin_unlock_irq(&s3c_rtc_pie_lock);
 }
 
@@ -98,13 +98,13 @@ static void s3c_rtc_setfreq(int freq)
         unsigned int tmp;
 
         spin_lock_irq(&s3c_rtc_pie_lock);
-        tmp = readb(S3C2410_TICNT) & S3C2410_TICNT_ENABLE;
+        tmp = readb(s3c_rtc_base + S3C2410_TICNT) & S3C2410_TICNT_ENABLE;
 
         s3c_rtc_freq = freq;
 
         tmp |= (128 / freq)-1;
 
-        writeb(tmp, S3C2410_TICNT);
+        writeb(tmp, s3c_rtc_base + S3C2410_TICNT);
         spin_unlock_irq(&s3c_rtc_pie_lock);
 }
 
@@ -113,14 +113,15 @@ static void s3c_rtc_setfreq(int freq)
 static int s3c_rtc_gettime(struct device *dev, struct rtc_time *rtc_tm)
 {
         unsigned int have_retried = 0;
+        void __iomem *base = s3c_rtc_base;
 
  retry_get_time:
-        rtc_tm->tm_min  = readb(S3C2410_RTCMIN);
-        rtc_tm->tm_hour = readb(S3C2410_RTCHOUR);
-        rtc_tm->tm_mday = readb(S3C2410_RTCDATE);
-        rtc_tm->tm_mon  = readb(S3C2410_RTCMON);
-        rtc_tm->tm_year = readb(S3C2410_RTCYEAR);
-        rtc_tm->tm_sec  = readb(S3C2410_RTCSEC);
+        rtc_tm->tm_min  = readb(base + S3C2410_RTCMIN);
+        rtc_tm->tm_hour = readb(base + S3C2410_RTCHOUR);
+        rtc_tm->tm_mday = readb(base + S3C2410_RTCDATE);
+        rtc_tm->tm_mon  = readb(base + S3C2410_RTCMON);
+        rtc_tm->tm_year = readb(base + S3C2410_RTCYEAR);
+        rtc_tm->tm_sec  = readb(base + S3C2410_RTCSEC);
 
         /* the only way to work out wether the system was mid-update
          * when we read it is to check the second counter, and if it
@@ -151,17 +152,26 @@ static int s3c_rtc_gettime(struct device *dev, struct rtc_time *rtc_tm)
 
 static int s3c_rtc_settime(struct device *dev, struct rtc_time *tm)
 {
-        /* the rtc gets round the y2k problem by just not supporting it */
+        void __iomem *base = s3c_rtc_base;
+        int year = tm->tm_year - 100;
 
-        if (tm->tm_year < 100)
+        pr_debug("set time %02d.%02d.%02d %02d/%02d/%02d\n",
+                 tm->tm_year, tm->tm_mon, tm->tm_mday,
+                 tm->tm_hour, tm->tm_min, tm->tm_sec);
+
+        /* we get around y2k by simply not supporting it */
+
+        if (year < 0 || year >= 100) {
+                dev_err(dev, "rtc only supports 100 years\n");
                 return -EINVAL;
+        }
 
-        writeb(BIN2BCD(tm->tm_sec),  S3C2410_RTCSEC);
-        writeb(BIN2BCD(tm->tm_min),  S3C2410_RTCMIN);
-        writeb(BIN2BCD(tm->tm_hour), S3C2410_RTCHOUR);
-        writeb(BIN2BCD(tm->tm_mday), S3C2410_RTCDATE);
-        writeb(BIN2BCD(tm->tm_mon + 1), S3C2410_RTCMON);
-        writeb(BIN2BCD(tm->tm_year - 100), S3C2410_RTCYEAR);
+        writeb(BIN2BCD(tm->tm_sec),  base + S3C2410_RTCSEC);
+        writeb(BIN2BCD(tm->tm_min),  base + S3C2410_RTCMIN);
+        writeb(BIN2BCD(tm->tm_hour), base + S3C2410_RTCHOUR);
+        writeb(BIN2BCD(tm->tm_mday), base + S3C2410_RTCDATE);
+        writeb(BIN2BCD(tm->tm_mon + 1), base + S3C2410_RTCMON);
+        writeb(BIN2BCD(year), base + S3C2410_RTCYEAR);
 
         return 0;
 }
@@ -169,16 +179,17 @@ static int s3c_rtc_settime(struct device *dev, struct rtc_time *tm)
 static int s3c_rtc_getalarm(struct device *dev, struct rtc_wkalrm *alrm)
 {
         struct rtc_time *alm_tm = &alrm->time;
+        void __iomem *base = s3c_rtc_base;
         unsigned int alm_en;
 
-        alm_tm->tm_sec  = readb(S3C2410_ALMSEC);
-        alm_tm->tm_min  = readb(S3C2410_ALMMIN);
-        alm_tm->tm_hour = readb(S3C2410_ALMHOUR);
-        alm_tm->tm_mon  = readb(S3C2410_ALMMON);
-        alm_tm->tm_mday = readb(S3C2410_ALMDATE);
-        alm_tm->tm_year = readb(S3C2410_ALMYEAR);
+        alm_tm->tm_sec  = readb(base + S3C2410_ALMSEC);
+        alm_tm->tm_min  = readb(base + S3C2410_ALMMIN);
+        alm_tm->tm_hour = readb(base + S3C2410_ALMHOUR);
+        alm_tm->tm_mon  = readb(base + S3C2410_ALMMON);
+        alm_tm->tm_mday = readb(base + S3C2410_ALMDATE);
+        alm_tm->tm_year = readb(base + S3C2410_ALMYEAR);
 
-        alm_en = readb(S3C2410_RTCALM);
+        alm_en = readb(base + S3C2410_RTCALM);
 
         pr_debug("read alarm %02x %02x.%02x.%02x %02x/%02x/%02x\n",
                  alm_en,
@@ -226,6 +237,7 @@ static int s3c_rtc_getalarm(struct device *dev, struct rtc_wkalrm *alrm)
 static int s3c_rtc_setalarm(struct device *dev, struct rtc_wkalrm *alrm)
 {
         struct rtc_time *tm = &alrm->time;
+        void __iomem *base = s3c_rtc_base;
         unsigned int alrm_en;
 
         pr_debug("s3c_rtc_setalarm: %d, %02x/%02x/%02x %02x.%02x.%02x\n",
@@ -234,32 +246,32 @@ static int s3c_rtc_setalarm(struct device *dev, struct rtc_wkalrm *alrm)
                  tm->tm_hour & 0xff, tm->tm_min & 0xff, tm->tm_sec);
 
 
-        alrm_en = readb(S3C2410_RTCALM) & S3C2410_RTCALM_ALMEN;
-        writeb(0x00, S3C2410_RTCALM);
+        alrm_en = readb(base + S3C2410_RTCALM) & S3C2410_RTCALM_ALMEN;
+        writeb(0x00, base + S3C2410_RTCALM);
 
         if (tm->tm_sec < 60 && tm->tm_sec >= 0) {
                 alrm_en |= S3C2410_RTCALM_SECEN;
-                writeb(BIN2BCD(tm->tm_sec), S3C2410_ALMSEC);
+                writeb(BIN2BCD(tm->tm_sec), base + S3C2410_ALMSEC);
         }
 
         if (tm->tm_min < 60 && tm->tm_min >= 0) {
                 alrm_en |= S3C2410_RTCALM_MINEN;
-                writeb(BIN2BCD(tm->tm_min), S3C2410_ALMMIN);
+                writeb(BIN2BCD(tm->tm_min), base + S3C2410_ALMMIN);
         }
 
         if (tm->tm_hour < 24 && tm->tm_hour >= 0) {
                 alrm_en |= S3C2410_RTCALM_HOUREN;
-                writeb(BIN2BCD(tm->tm_hour), S3C2410_ALMHOUR);
+                writeb(BIN2BCD(tm->tm_hour), base + S3C2410_ALMHOUR);
         }
 
         pr_debug("setting S3C2410_RTCALM to %08x\n", alrm_en);
 
-        writeb(alrm_en, S3C2410_RTCALM);
+        writeb(alrm_en, base + S3C2410_RTCALM);
 
         if (0) {
-                alrm_en = readb(S3C2410_RTCALM);
+                alrm_en = readb(base + S3C2410_RTCALM);
                 alrm_en &= ~S3C2410_RTCALM_ALMEN;
-                writeb(alrm_en, S3C2410_RTCALM);
+                writeb(alrm_en, base + S3C2410_RTCALM);
                 disable_irq_wake(s3c_rtc_alarmno);
         }
 
@@ -319,8 +331,8 @@ static int s3c_rtc_ioctl(struct device *dev,
 
 static int s3c_rtc_proc(struct device *dev, struct seq_file *seq)
 {
-        unsigned int rtcalm = readb(S3C2410_RTCALM);
-        unsigned int ticnt = readb (S3C2410_TICNT);
+        unsigned int rtcalm = readb(s3c_rtc_base + S3C2410_RTCALM);
+        unsigned int ticnt = readb(s3c_rtc_base + S3C2410_TICNT);
 
         seq_printf(seq, "alarm_IRQ\t: %s\n",
                    (rtcalm & S3C2410_RTCALM_ALMEN) ? "yes" : "no" );
@@ -387,39 +399,40 @@ static struct rtc_class_ops s3c_rtcops = {
 
 static void s3c_rtc_enable(struct platform_device *pdev, int en)
 {
+        void __iomem *base = s3c_rtc_base;
         unsigned int tmp;
 
         if (s3c_rtc_base == NULL)
                 return;
 
         if (!en) {
-                tmp = readb(S3C2410_RTCCON);
-                writeb(tmp & ~S3C2410_RTCCON_RTCEN, S3C2410_RTCCON);
+                tmp = readb(base + S3C2410_RTCCON);
+                writeb(tmp & ~S3C2410_RTCCON_RTCEN, base + S3C2410_RTCCON);
 
-                tmp = readb(S3C2410_TICNT);
-                writeb(tmp & ~S3C2410_TICNT_ENABLE, S3C2410_TICNT);
+                tmp = readb(base + S3C2410_TICNT);
+                writeb(tmp & ~S3C2410_TICNT_ENABLE, base + S3C2410_TICNT);
         } else {
                 /* re-enable the device, and check it is ok */
 
-                if ((readb(S3C2410_RTCCON) & S3C2410_RTCCON_RTCEN) == 0){
+                if ((readb(base+S3C2410_RTCCON) & S3C2410_RTCCON_RTCEN) == 0){
                         dev_info(&pdev->dev, "rtc disabled, re-enabling\n");
 
-                        tmp = readb(S3C2410_RTCCON);
-                        writeb(tmp | S3C2410_RTCCON_RTCEN , S3C2410_RTCCON);
+                        tmp = readb(base + S3C2410_RTCCON);
+                        writeb(tmp|S3C2410_RTCCON_RTCEN, base+S3C2410_RTCCON);
                 }
 
-                if ((readb(S3C2410_RTCCON) & S3C2410_RTCCON_CNTSEL)){
+                if ((readb(base + S3C2410_RTCCON) & S3C2410_RTCCON_CNTSEL)){
                         dev_info(&pdev->dev, "removing RTCCON_CNTSEL\n");
 
-                        tmp = readb(S3C2410_RTCCON);
-                        writeb(tmp& ~S3C2410_RTCCON_CNTSEL , S3C2410_RTCCON);
+                        tmp = readb(base + S3C2410_RTCCON);
+                        writeb(tmp& ~S3C2410_RTCCON_CNTSEL, base+S3C2410_RTCCON);
                 }
 
-                if ((readb(S3C2410_RTCCON) & S3C2410_RTCCON_CLKRST)){
+                if ((readb(base + S3C2410_RTCCON) & S3C2410_RTCCON_CLKRST)){
                         dev_info(&pdev->dev, "removing RTCCON_CLKRST\n");
 
-                        tmp = readb(S3C2410_RTCCON);
-                        writeb(tmp & ~S3C2410_RTCCON_CLKRST, S3C2410_RTCCON);
+                        tmp = readb(base + S3C2410_RTCCON);
+                        writeb(tmp & ~S3C2410_RTCCON_CLKRST, base+S3C2410_RTCCON);
                 }
         }
 }
@@ -475,8 +488,8 @@ static int s3c_rtc_probe(struct platform_device *pdev)
         }
 
         s3c_rtc_mem = request_mem_region(res->start,
-                                             res->end-res->start+1,
-                                             pdev->name);
+                                         res->end-res->start+1,
+                                         pdev->name);
 
         if (s3c_rtc_mem == NULL) {
                 dev_err(&pdev->dev, "failed to reserve memory region\n");
@@ -495,7 +508,8 @@ static int s3c_rtc_probe(struct platform_device *pdev)
 
         s3c_rtc_enable(pdev, 1);
 
-        pr_debug("s3c2410_rtc: RTCCON=%02x\n", readb(S3C2410_RTCCON));
+        pr_debug("s3c2410_rtc: RTCCON=%02x\n",
+                 readb(s3c_rtc_base + S3C2410_RTCCON));
 
         s3c_rtc_setfreq(s3c_rtc_freq);
 
@@ -543,7 +557,7 @@ static int s3c_rtc_suspend(struct platform_device *pdev, pm_message_t state)
 
         /* save TICNT for anyone using periodic interrupts */
 
-        ticnt_save = readb(S3C2410_TICNT);
+        ticnt_save = readb(s3c_rtc_base + S3C2410_TICNT);
 
         /* calculate time delta for suspend */
 
@@ -567,7 +581,7 @@ static int s3c_rtc_resume(struct platform_device *pdev)
         rtc_tm_to_time(&tm, &time.tv_sec);
         restore_time_delta(&s3c_rtc_delta, &time);
 
-        writeb(ticnt_save, S3C2410_TICNT);
+        writeb(ticnt_save, s3c_rtc_base + S3C2410_TICNT);
         return 0;
 }
 #else
diff --git a/drivers/s390/block/dasd_devmap.c b/drivers/s390/block/dasd_devmap.c
index 9d0c6e1a0e66..9af02c79ce8a 100644
--- a/drivers/s390/block/dasd_devmap.c
+++ b/drivers/s390/block/dasd_devmap.c
@@ -54,11 +54,11 @@ struct dasd_devmap {
  */
 struct dasd_server_ssid_map {
         struct list_head list;
-        struct server_id {
+        struct system_id {
                 char vendor[4];
                 char serial[15];
+                __u16 ssid;
         } sid;
-        __u16 ssid;
 };
 
 static struct list_head dasd_server_ssid_list;
@@ -904,14 +904,14 @@ dasd_set_uid(struct ccw_device *cdev, struct dasd_uid *uid)
                 return -ENOMEM;
         strncpy(srv->sid.vendor, uid->vendor, sizeof(srv->sid.vendor) - 1);
         strncpy(srv->sid.serial, uid->serial, sizeof(srv->sid.serial) - 1);
-        srv->ssid = uid->ssid;
+        srv->sid.ssid = uid->ssid;
 
         /* server is already contained ? */
         spin_lock(&dasd_devmap_lock);
         devmap->uid = *uid;
         list_for_each_entry(tmp, &dasd_server_ssid_list, list) {
                 if (!memcmp(&srv->sid, &tmp->sid,
-                            sizeof(struct dasd_server_ssid_map))) {
+                            sizeof(struct system_id))) {
                         kfree(srv);
                         srv = NULL;
                         break;
diff --git a/drivers/s390/block/dasd_eckd.c b/drivers/s390/block/dasd_eckd.c
index 957ed5db98e4..b7a7fac3f7c3 100644
--- a/drivers/s390/block/dasd_eckd.c
+++ b/drivers/s390/block/dasd_eckd.c
@@ -607,7 +607,7 @@ dasd_eckd_psf_ssc(struct dasd_device *device)
  * Valide storage server of current device.
  */
 static int
-dasd_eckd_validate_server(struct dasd_device *device)
+dasd_eckd_validate_server(struct dasd_device *device, struct dasd_uid *uid)
 {
         int rc;
 
@@ -616,11 +616,11 @@ dasd_eckd_validate_server(struct dasd_device *device)
                 return 0;
 
         rc = dasd_eckd_psf_ssc(device);
-        if (rc)
-                /* may be requested feature is not available on server,
-                 * therefore just report error and go ahead */
-                DEV_MESSAGE(KERN_INFO, device,
-                            "Perform Subsystem Function returned rc=%d", rc);
+        /* may be requested feature is not available on server,
+         * therefore just report error and go ahead */
+        DEV_MESSAGE(KERN_INFO, device,
+                    "PSF-SSC on storage subsystem %s.%s.%04x returned rc=%d",
+                    uid->vendor, uid->serial, uid->ssid, rc);
         /* RE-Read Configuration Data */
         return dasd_eckd_read_conf(device);
 }
@@ -666,7 +666,7 @@ dasd_eckd_check_characteristics(struct dasd_device *device)
                 return rc;
         rc = dasd_set_uid(device->cdev, &uid);
         if (rc == 1)    /* new server found */
-                rc = dasd_eckd_validate_server(device);
+                rc = dasd_eckd_validate_server(device, &uid);
         if (rc)
                 return rc;
 
diff --git a/drivers/s390/scsi/zfcp_aux.c b/drivers/s390/scsi/zfcp_aux.c
index 9cd789b8acd4..adc9d8f2c28f 100644
--- a/drivers/s390/scsi/zfcp_aux.c
+++ b/drivers/s390/scsi/zfcp_aux.c
@@ -112,6 +112,105 @@ _zfcp_hex_dump(char *addr, int count)
                 printk("\n");
 }
 
+
+/****************************************************************/
+/****** Functions to handle the request ID hash table    ********/
+/****************************************************************/
+
+#define ZFCP_LOG_AREA                   ZFCP_LOG_AREA_FSF
+
+static int zfcp_reqlist_init(struct zfcp_adapter *adapter)
+{
+        int i;
+
+        adapter->req_list = kcalloc(REQUEST_LIST_SIZE, sizeof(struct list_head),
+                                    GFP_KERNEL);
+
+        if (!adapter->req_list)
+                return -ENOMEM;
+
+        for (i=0; i<REQUEST_LIST_SIZE; i++)
+                INIT_LIST_HEAD(&adapter->req_list[i]);
+
+        return 0;
+}
+
+static void zfcp_reqlist_free(struct zfcp_adapter *adapter)
+{
+        struct zfcp_fsf_req *request, *tmp;
+        unsigned int i;
+
+        for (i=0; i<REQUEST_LIST_SIZE; i++) {
+                if (list_empty(&adapter->req_list[i]))
+                        continue;
+
+                list_for_each_entry_safe(request, tmp,
+                                         &adapter->req_list[i], list)
+                        list_del(&request->list);
+        }
+
+        kfree(adapter->req_list);
+}
+
+void zfcp_reqlist_add(struct zfcp_adapter *adapter,
+                      struct zfcp_fsf_req *fsf_req)
+{
+        unsigned int i;
+
+        i = fsf_req->req_id % REQUEST_LIST_SIZE;
+        list_add_tail(&fsf_req->list, &adapter->req_list[i]);
+}
+
+void zfcp_reqlist_remove(struct zfcp_adapter *adapter, unsigned long req_id)
+{
+        struct zfcp_fsf_req *request, *tmp;
+        unsigned int i, counter;
+        u64 dbg_tmp[2];
+
+        i = req_id % REQUEST_LIST_SIZE;
+        BUG_ON(list_empty(&adapter->req_list[i]));
+
+        counter = 0;
+        list_for_each_entry_safe(request, tmp, &adapter->req_list[i], list) {
+                if (request->req_id == req_id) {
+                        dbg_tmp[0] = (u64) atomic_read(&adapter->reqs_active);
+                        dbg_tmp[1] = (u64) counter;
+                        debug_event(adapter->erp_dbf, 4, (void *) dbg_tmp, 16);
+                        list_del(&request->list);
+                        break;
+                }
+                counter++;
+        }
+}
+
+struct zfcp_fsf_req *zfcp_reqlist_ismember(struct zfcp_adapter *adapter,
+                                           unsigned long req_id)
+{
+        struct zfcp_fsf_req *request, *tmp;
+        unsigned int i;
+
+        i = req_id % REQUEST_LIST_SIZE;
+
+        list_for_each_entry_safe(request, tmp, &adapter->req_list[i], list)
+                if (request->req_id == req_id)
+                        return request;
+
+        return NULL;
+}
+
+int zfcp_reqlist_isempty(struct zfcp_adapter *adapter)
+{
+        unsigned int i;
+
+        for (i=0; i<REQUEST_LIST_SIZE; i++)
+                if (!list_empty(&adapter->req_list[i]))
+                        return 0;
+
+        return 1;
+}
+
+#undef ZFCP_LOG_AREA
+
 /****************************************************************/
 /************** Uncategorised Functions *************************/
 /****************************************************************/
@@ -961,8 +1060,12 @@ zfcp_adapter_enqueue(struct ccw_device *ccw_device)
         INIT_LIST_HEAD(&adapter->port_remove_lh);
 
         /* initialize list of fsf requests */
-        spin_lock_init(&adapter->fsf_req_list_lock);
-        INIT_LIST_HEAD(&adapter->fsf_req_list_head);
+        spin_lock_init(&adapter->req_list_lock);
+        retval = zfcp_reqlist_init(adapter);
+        if (retval) {
+                ZFCP_LOG_INFO("request list initialization failed\n");
+                goto failed_low_mem_buffers;
+        }
 
         /* initialize debug locks */
 
@@ -1041,8 +1144,6 @@ zfcp_adapter_enqueue(struct ccw_device *ccw_device)
  *              !0 - struct zfcp_adapter  data structure could not be removed
  *                      (e.g. still used)
  * locks:       adapter list write lock is assumed to be held by caller
- *              adapter->fsf_req_list_lock is taken and released within this 
- *              function and must not be held on entry
  */
 void
 zfcp_adapter_dequeue(struct zfcp_adapter *adapter)
@@ -1054,14 +1155,14 @@ zfcp_adapter_dequeue(struct zfcp_adapter *adapter)
         zfcp_sysfs_adapter_remove_files(&adapter->ccw_device->dev);
         dev_set_drvdata(&adapter->ccw_device->dev, NULL);
         /* sanity check: no pending FSF requests */
-        spin_lock_irqsave(&adapter->fsf_req_list_lock, flags);
-        retval = !list_empty(&adapter->fsf_req_list_head);
-        spin_unlock_irqrestore(&adapter->fsf_req_list_lock, flags);
-        if (retval) {
+        spin_lock_irqsave(&adapter->req_list_lock, flags);
+        retval = zfcp_reqlist_isempty(adapter);
+        spin_unlock_irqrestore(&adapter->req_list_lock, flags);
+        if (!retval) {
                 ZFCP_LOG_NORMAL("bug: adapter %s (%p) still in use, "
                                 "%i requests outstanding\n",
                                 zfcp_get_busid_by_adapter(adapter), adapter,
-                                atomic_read(&adapter->fsf_reqs_active));
+                                atomic_read(&adapter->reqs_active));
                 retval = -EBUSY;
                 goto out;
         }
@@ -1087,6 +1188,7 @@ zfcp_adapter_dequeue(struct zfcp_adapter *adapter)
         zfcp_free_low_mem_buffers(adapter);
         /* free memory of adapter data structure and queues */
         zfcp_qdio_free_queues(adapter);
+        zfcp_reqlist_free(adapter);
         kfree(adapter->fc_stats);
         kfree(adapter->stats_reset_data);
         ZFCP_LOG_TRACE("freeing adapter structure\n");
diff --git a/drivers/s390/scsi/zfcp_ccw.c b/drivers/s390/scsi/zfcp_ccw.c
index 57d8e4bfb8d9..fdabadeaa9ee 100644
--- a/drivers/s390/scsi/zfcp_ccw.c
+++ b/drivers/s390/scsi/zfcp_ccw.c
@@ -164,6 +164,11 @@ zfcp_ccw_set_online(struct ccw_device *ccw_device)
         retval = zfcp_adapter_scsi_register(adapter);
         if (retval)
                 goto out_scsi_register;
+
+        /* initialize request counter */
+        BUG_ON(!zfcp_reqlist_isempty(adapter));
+        adapter->req_no = 0;
+
         zfcp_erp_modify_adapter_status(adapter, ZFCP_STATUS_COMMON_RUNNING,
                                        ZFCP_SET);
         zfcp_erp_adapter_reopen(adapter, ZFCP_STATUS_COMMON_ERP_FAILED);
diff --git a/drivers/s390/scsi/zfcp_def.h b/drivers/s390/scsi/zfcp_def.h
index 2df512a18e2c..94d1b74db356 100644
--- a/drivers/s390/scsi/zfcp_def.h
+++ b/drivers/s390/scsi/zfcp_def.h
@@ -52,7 +52,7 @@
 /********************* GENERAL DEFINES *********************************/
 
 /* zfcp version number, it consists of major, minor, and patch-level number */
-#define ZFCP_VERSION            "4.7.0"
+#define ZFCP_VERSION            "4.8.0"
 
 /**
  * zfcp_sg_to_address - determine kernel address from struct scatterlist
@@ -80,7 +80,7 @@ zfcp_address_to_sg(void *address, struct scatterlist *list)
 #define REQUEST_LIST_SIZE 128
 
 /********************* SCSI SPECIFIC DEFINES *********************************/
-#define ZFCP_SCSI_ER_TIMEOUT                    (100*HZ)
+#define ZFCP_SCSI_ER_TIMEOUT                    (10*HZ)
 
 /********************* CIO/QDIO SPECIFIC DEFINES *****************************/
 
@@ -886,11 +886,11 @@ struct zfcp_adapter {
         struct list_head        port_remove_lh;    /* head of ports to be
                                                       removed */
         u32                     ports;             /* number of remote ports */
-        struct timer_list       scsi_er_timer;     /* SCSI err recovery watch */
-        struct list_head        fsf_req_list_head; /* head of FSF req list */
-        spinlock_t              fsf_req_list_lock; /* lock for ops on list of
-                                                      FSF requests */
-        atomic_t                fsf_reqs_active;   /* # active FSF reqs */
+        struct timer_list       scsi_er_timer;     /* SCSI err recovery watch */
+        atomic_t                reqs_active;       /* # active FSF reqs */
+        unsigned long           req_no;            /* unique FSF req number */
+        struct list_head        *req_list;         /* list of pending reqs */
+        spinlock_t              req_list_lock;     /* request list lock */
         struct zfcp_qdio_queue  request_queue;     /* request queue */
         u32                     fsf_req_seq_no;    /* FSF cmnd seq number */
         wait_queue_head_t       request_wq;        /* can be used to wait for
@@ -986,6 +986,7 @@ struct zfcp_unit {
 /* FSF request */
 struct zfcp_fsf_req {
         struct list_head       list;           /* list of FSF requests */
+        unsigned long          req_id;         /* unique request ID */
         struct zfcp_adapter    *adapter;       /* adapter request belongs to */
         u8                     sbal_number;    /* nr of SBALs free for use */
         u8                     sbal_first;     /* first SBAL for this request */
diff --git a/drivers/s390/scsi/zfcp_erp.c b/drivers/s390/scsi/zfcp_erp.c
index 8ec8da0beaa8..7f60b6fdf724 100644
--- a/drivers/s390/scsi/zfcp_erp.c
+++ b/drivers/s390/scsi/zfcp_erp.c
@@ -64,8 +64,8 @@ static int zfcp_erp_strategy_check_action(struct zfcp_erp_action *, int);
 static int zfcp_erp_adapter_strategy(struct zfcp_erp_action *);
 static int zfcp_erp_adapter_strategy_generic(struct zfcp_erp_action *, int);
 static int zfcp_erp_adapter_strategy_close(struct zfcp_erp_action *);
-static int zfcp_erp_adapter_strategy_close_qdio(struct zfcp_erp_action *);
-static int zfcp_erp_adapter_strategy_close_fsf(struct zfcp_erp_action *);
+static void zfcp_erp_adapter_strategy_close_qdio(struct zfcp_erp_action *);
+static void zfcp_erp_adapter_strategy_close_fsf(struct zfcp_erp_action *);
 static int zfcp_erp_adapter_strategy_open(struct zfcp_erp_action *);
 static int zfcp_erp_adapter_strategy_open_qdio(struct zfcp_erp_action *);
 static int zfcp_erp_adapter_strategy_open_fsf(struct zfcp_erp_action *);
@@ -93,10 +93,9 @@ static int zfcp_erp_unit_strategy_clearstati(struct zfcp_unit *);
 static int zfcp_erp_unit_strategy_close(struct zfcp_erp_action *);
 static int zfcp_erp_unit_strategy_open(struct zfcp_erp_action *);
 
-static int zfcp_erp_action_dismiss_adapter(struct zfcp_adapter *);
-static int zfcp_erp_action_dismiss_port(struct zfcp_port *);
-static int zfcp_erp_action_dismiss_unit(struct zfcp_unit *);
-static int zfcp_erp_action_dismiss(struct zfcp_erp_action *);
+static void zfcp_erp_action_dismiss_port(struct zfcp_port *);
+static void zfcp_erp_action_dismiss_unit(struct zfcp_unit *);
+static void zfcp_erp_action_dismiss(struct zfcp_erp_action *);
 
 static int zfcp_erp_action_enqueue(int, struct zfcp_adapter *,
                                    struct zfcp_port *, struct zfcp_unit *);
@@ -135,29 +134,39 @@ zfcp_fsf_request_timeout_handler(unsigned long data)
         zfcp_erp_adapter_reopen(adapter, 0);
 }
 
-/*
- * function:    zfcp_fsf_scsi_er_timeout_handler
- *
- * purpose:     This function needs to be called whenever a SCSI error recovery
- *              action (abort/reset) does not return.
- *              Re-opening the adapter means that the command can be returned
- *              by zfcp (it is guarranteed that it does not return via the
- *              adapter anymore). The buffer can then be used again.
- *    
- * returns:     sod all
+/**
+ * zfcp_fsf_scsi_er_timeout_handler - timeout handler for scsi eh tasks
+ *
+ * This function needs to be called whenever a SCSI error recovery
+ * action (abort/reset) does not return.  Re-opening the adapter means
+ * that the abort/reset command can be returned by zfcp. It won't complete
+ * via the adapter anymore (because qdio queues are closed). If ERP is
+ * already running on this adapter it will be stopped.
  */
-void
-zfcp_fsf_scsi_er_timeout_handler(unsigned long data)
+void zfcp_fsf_scsi_er_timeout_handler(unsigned long data)
 {
         struct zfcp_adapter *adapter = (struct zfcp_adapter *) data;
+        unsigned long flags;
 
         ZFCP_LOG_NORMAL("warning: SCSI error recovery timed out. "
                         "Restarting all operations on the adapter %s\n",
                         zfcp_get_busid_by_adapter(adapter));
         debug_text_event(adapter->erp_dbf, 1, "eh_lmem_tout");
-        zfcp_erp_adapter_reopen(adapter, 0);
 
-        return;
+        write_lock_irqsave(&adapter->erp_lock, flags);
+        if (atomic_test_mask(ZFCP_STATUS_ADAPTER_ERP_PENDING,
+                             &adapter->status)) {
+                zfcp_erp_modify_adapter_status(adapter,
+                       ZFCP_STATUS_COMMON_UNBLOCKED|ZFCP_STATUS_COMMON_OPEN,
+                       ZFCP_CLEAR);
+                zfcp_erp_action_dismiss_adapter(adapter);
+                write_unlock_irqrestore(&adapter->erp_lock, flags);
+                /* dismiss all pending requests including requests for ERP */
+                zfcp_fsf_req_dismiss_all(adapter);
+                adapter->fsf_req_seq_no = 0;
+        } else
+                write_unlock_irqrestore(&adapter->erp_lock, flags);
+        zfcp_erp_adapter_reopen(adapter, 0);
 }
 
 /*
@@ -670,17 +679,10 @@ zfcp_erp_unit_reopen(struct zfcp_unit *unit, int clear_mask)
         return retval;
 }
 
-/*
- * function:    
- *
- * purpose:     disable I/O,
- *              return any open requests and clean them up,
- *              aim: no pending and incoming I/O
- *
- * returns:
+/**
+ * zfcp_erp_adapter_block - mark adapter as blocked, block scsi requests
  */
-static void
-zfcp_erp_adapter_block(struct zfcp_adapter *adapter, int clear_mask)
+static void zfcp_erp_adapter_block(struct zfcp_adapter *adapter, int clear_mask)
 {
         debug_text_event(adapter->erp_dbf, 6, "a_bl");
         zfcp_erp_modify_adapter_status(adapter,
@@ -688,15 +690,10 @@ zfcp_erp_adapter_block(struct zfcp_adapter *adapter, int clear_mask)
                                        clear_mask, ZFCP_CLEAR);
 }
 
-/*
- * function:    
- *
- * purpose:     enable I/O
- *
- * returns:
+/**
+ * zfcp_erp_adapter_unblock - mark adapter as unblocked, allow scsi requests
  */
-static void
-zfcp_erp_adapter_unblock(struct zfcp_adapter *adapter)
+static void zfcp_erp_adapter_unblock(struct zfcp_adapter *adapter)
 {
         debug_text_event(adapter->erp_dbf, 6, "a_ubl");
         atomic_set_mask(ZFCP_STATUS_COMMON_UNBLOCKED, &adapter->status);
@@ -848,18 +845,16 @@ zfcp_erp_strategy_check_fsfreq(struct zfcp_erp_action *erp_action)
         struct zfcp_adapter *adapter = erp_action->adapter;
 
         if (erp_action->fsf_req) {
-                /* take lock to ensure that request is not being deleted meanwhile */
-                spin_lock(&adapter->fsf_req_list_lock);
-                /* check whether fsf req does still exist */
-                list_for_each_entry(fsf_req, &adapter->fsf_req_list_head, list)
-                    if (fsf_req == erp_action->fsf_req)
-                        break;
-                if (fsf_req && (fsf_req->erp_action == erp_action)) {
+                /* take lock to ensure that request is not deleted meanwhile */
+                spin_lock(&adapter->req_list_lock);
+                if ((!zfcp_reqlist_ismember(adapter,
+                                            erp_action->fsf_req->req_id)) &&
+                    (fsf_req->erp_action == erp_action)) {
                         /* fsf_req still exists */
                         debug_text_event(adapter->erp_dbf, 3, "a_ca_req");
                         debug_event(adapter->erp_dbf, 3, &fsf_req,
                                     sizeof (unsigned long));
-                        /* dismiss fsf_req of timed out or dismissed erp_action */
+                        /* dismiss fsf_req of timed out/dismissed erp_action */
                         if (erp_action->status & (ZFCP_STATUS_ERP_DISMISSED |
                                                   ZFCP_STATUS_ERP_TIMEDOUT)) {
                                 debug_text_event(adapter->erp_dbf, 3,
@@ -892,30 +887,22 @@ zfcp_erp_strategy_check_fsfreq(struct zfcp_erp_action *erp_action)
                          */
                         erp_action->fsf_req = NULL;
                 }
-                spin_unlock(&adapter->fsf_req_list_lock);
+                spin_unlock(&adapter->req_list_lock);
         } else
                 debug_text_event(adapter->erp_dbf, 3, "a_ca_noreq");
 
         return retval;
 }
 
-/*
- * purpose:     generic handler for asynchronous events related to erp_action events
- *              (normal completion, time-out, dismissing, retry after
- *              low memory condition)
- *
- * note:        deletion of timer is not required (e.g. in case of a time-out),
- *              but a second try does no harm,
- *              we leave it in here to allow for greater simplification
+/**
+ * zfcp_erp_async_handler_nolock - complete erp_action
  *
- * returns:     0 - there was an action to handle
- *              !0 - otherwise
+ * Used for normal completion, time-out, dismissal and failure after
+ * low memory condition.
  */
-static int
-zfcp_erp_async_handler_nolock(struct zfcp_erp_action *erp_action,
-                              unsigned long set_mask)
+static void zfcp_erp_async_handler_nolock(struct zfcp_erp_action *erp_action,
+                                          unsigned long set_mask)
 {
-        int retval;
         struct zfcp_adapter *adapter = erp_action->adapter;
 
         if (zfcp_erp_action_exists(erp_action) == ZFCP_ERP_ACTION_RUNNING) {
@@ -926,43 +913,26 @@ zfcp_erp_async_handler_nolock(struct zfcp_erp_action *erp_action,
                         del_timer(&erp_action->timer);
                 erp_action->status |= set_mask;
                 zfcp_erp_action_ready(erp_action);
-                retval = 0;
         } else {
                 /* action is ready or gone - nothing to do */
                 debug_text_event(adapter->erp_dbf, 3, "a_asyh_gone");
                 debug_event(adapter->erp_dbf, 3, &erp_action->action,
                             sizeof (int));
-                retval = 1;
         }
-
-        return retval;
 }
 
-/*
- * purpose:     generic handler for asynchronous events related to erp_action
- *               events (normal completion, time-out, dismissing, retry after
- *              low memory condition)
- *
- * note:        deletion of timer is not required (e.g. in case of a time-out),
- *              but a second try does no harm,
- *              we leave it in here to allow for greater simplification
- *
- * returns:     0 - there was an action to handle
- *              !0 - otherwise
+/**
+ * zfcp_erp_async_handler - wrapper for erp_async_handler_nolock w/ locking
  */
-int
-zfcp_erp_async_handler(struct zfcp_erp_action *erp_action,
-                       unsigned long set_mask)
+void zfcp_erp_async_handler(struct zfcp_erp_action *erp_action,
+                            unsigned long set_mask)
 {
         struct zfcp_adapter *adapter = erp_action->adapter;
         unsigned long flags;
-        int retval;
 
         write_lock_irqsave(&adapter->erp_lock, flags);
-        retval = zfcp_erp_async_handler_nolock(erp_action, set_mask);
+        zfcp_erp_async_handler_nolock(erp_action, set_mask);
         write_unlock_irqrestore(&adapter->erp_lock, flags);
-
-        return retval;
 }
 
 /*
@@ -999,17 +969,15 @@ zfcp_erp_timeout_handler(unsigned long data)
         zfcp_erp_async_handler(erp_action, ZFCP_STATUS_ERP_TIMEDOUT);
 }
 
-/*
- * purpose:     is called for an erp_action which needs to be ended
- *              though not being done,
- *              this is usually required if an higher is generated,
- *              action gets an appropriate flag and will be processed
- *              accordingly
+/**
+ * zfcp_erp_action_dismiss - dismiss an erp_action
  *
- * locks:       erp_lock held (thus we need to call another handler variant)
+ * adapter->erp_lock must be held
+ * 
+ * Dismissal of an erp_action is usually required if an erp_action of
+ * higher priority is generated.
  */
-static int
-zfcp_erp_action_dismiss(struct zfcp_erp_action *erp_action)
+static void zfcp_erp_action_dismiss(struct zfcp_erp_action *erp_action)
 {
         struct zfcp_adapter *adapter = erp_action->adapter;
 
@@ -1017,8 +985,6 @@ zfcp_erp_action_dismiss(struct zfcp_erp_action *erp_action)
         debug_event(adapter->erp_dbf, 2, &erp_action->action, sizeof (int));
 
         zfcp_erp_async_handler_nolock(erp_action, ZFCP_STATUS_ERP_DISMISSED);
-
-        return 0;
 }
 
 int
@@ -2074,18 +2040,12 @@ zfcp_erp_adapter_strategy_open_qdio(struct zfcp_erp_action *erp_action)
         return retval;
 }
 
-/*
- * function:    zfcp_qdio_cleanup
- *
- * purpose:     cleans up QDIO operation for the specified adapter
- *
- * returns:     0 - successful cleanup
- *              !0 - failed cleanup
+/**
+ * zfcp_erp_adapter_strategy_close_qdio - close qdio queues for an adapter
  */
-int
+static void
 zfcp_erp_adapter_strategy_close_qdio(struct zfcp_erp_action *erp_action)
 {
-        int retval = ZFCP_ERP_SUCCEEDED;
         int first_used;
         int used_count;
         struct zfcp_adapter *adapter = erp_action->adapter;
@@ -2094,15 +2054,13 @@ zfcp_erp_adapter_strategy_close_qdio(struct zfcp_erp_action *erp_action)
                 ZFCP_LOG_DEBUG("error: attempt to shut down inactive QDIO "
                                "queues on adapter %s\n",
                                zfcp_get_busid_by_adapter(adapter));
-                retval = ZFCP_ERP_FAILED;
-                goto out;
+                return;
         }
 
         /*
          * Get queue_lock and clear QDIOUP flag. Thus it's guaranteed that
          * do_QDIO won't be called while qdio_shutdown is in progress.
          */
-
         write_lock_irq(&adapter->request_queue.queue_lock);
         atomic_clear_mask(ZFCP_STATUS_ADAPTER_QDIOUP, &adapter->status);
         write_unlock_irq(&adapter->request_queue.queue_lock);
@@ -2134,8 +2092,6 @@ zfcp_erp_adapter_strategy_close_qdio(struct zfcp_erp_action *erp_action)
         adapter->request_queue.free_index = 0;
         atomic_set(&adapter->request_queue.free_count, 0);
         adapter->request_queue.distance_from_int = 0;
- out:
-        return retval;
 }
 
 static int
@@ -2258,11 +2214,11 @@ zfcp_erp_adapter_strategy_open_fsf_xport(struct zfcp_erp_action *erp_action)
                               "%s)\n", zfcp_get_busid_by_adapter(adapter));
                 ret = ZFCP_ERP_FAILED;
         }
-        if (!atomic_test_mask(ZFCP_STATUS_ADAPTER_XPORT_OK, &adapter->status)) {
-                ZFCP_LOG_INFO("error: exchange port data failed (adapter "
+
+        /* don't treat as error for the sake of compatibility */
+        if (!atomic_test_mask(ZFCP_STATUS_ADAPTER_XPORT_OK, &adapter->status))
+                ZFCP_LOG_INFO("warning: exchange port data failed (adapter "
                               "%s\n", zfcp_get_busid_by_adapter(adapter));
-                ret = ZFCP_ERP_FAILED;
-        }
 
         return ret;
 }
@@ -2292,18 +2248,12 @@ zfcp_erp_adapter_strategy_open_fsf_statusread(struct zfcp_erp_action
         return retval;
 }
 
-/*
- * function:    zfcp_fsf_cleanup
- *
- * purpose:     cleanup FSF operation for specified adapter
- *
- * returns:     0 - FSF operation successfully cleaned up
- *              !0 - failed to cleanup FSF operation for this adapter
+/**
+ * zfcp_erp_adapter_strategy_close_fsf - stop FSF operations for an adapter
  */
-static int
+static void
 zfcp_erp_adapter_strategy_close_fsf(struct zfcp_erp_action *erp_action)
 {
-        int retval = ZFCP_ERP_SUCCEEDED;
         struct zfcp_adapter *adapter = erp_action->adapter;
 
         /*
@@ -2317,8 +2267,6 @@ zfcp_erp_adapter_strategy_close_fsf(struct zfcp_erp_action *erp_action)
         /* all ports and units are closed */
         zfcp_erp_modify_adapter_status(adapter,
                                        ZFCP_STATUS_COMMON_OPEN, ZFCP_CLEAR);
-
-        return retval;
 }
 
 /*
@@ -3293,10 +3241,8 @@ zfcp_erp_action_cleanup(int action, struct zfcp_adapter *adapter,
 }
 
 
-static int
-zfcp_erp_action_dismiss_adapter(struct zfcp_adapter *adapter)
+void zfcp_erp_action_dismiss_adapter(struct zfcp_adapter *adapter)
 {
-        int retval = 0;
         struct zfcp_port *port;
 
         debug_text_event(adapter->erp_dbf, 5, "a_actab");
@@ -3305,14 +3251,10 @@ zfcp_erp_action_dismiss_adapter(struct zfcp_adapter *adapter)
         else
                 list_for_each_entry(port, &adapter->port_list_head, list)
                     zfcp_erp_action_dismiss_port(port);
-
-        return retval;
 }
 
-static int
-zfcp_erp_action_dismiss_port(struct zfcp_port *port)
+static void zfcp_erp_action_dismiss_port(struct zfcp_port *port)
 {
-        int retval = 0;
         struct zfcp_unit *unit;
         struct zfcp_adapter *adapter = port->adapter;
 
@@ -3323,22 +3265,16 @@ zfcp_erp_action_dismiss_port(struct zfcp_port *port)
         else
                 list_for_each_entry(unit, &port->unit_list_head, list)
                     zfcp_erp_action_dismiss_unit(unit);
-
-        return retval;
 }
 
-static int
-zfcp_erp_action_dismiss_unit(struct zfcp_unit *unit)
+static void zfcp_erp_action_dismiss_unit(struct zfcp_unit *unit)
 {
-        int retval = 0;
         struct zfcp_adapter *adapter = unit->port->adapter;
 
         debug_text_event(adapter->erp_dbf, 5, "u_actab");
         debug_event(adapter->erp_dbf, 5, &unit->fcp_lun, sizeof (fcp_lun_t));
         if (atomic_test_mask(ZFCP_STATUS_COMMON_ERP_INUSE, &unit->status))
                 zfcp_erp_action_dismiss(&unit->erp_action);
-
-        return retval;
 }
 
 static inline void
diff --git a/drivers/s390/scsi/zfcp_ext.h b/drivers/s390/scsi/zfcp_ext.h
index d02366004cdd..146d7a2b4c4a 100644
--- a/drivers/s390/scsi/zfcp_ext.h
+++ b/drivers/s390/scsi/zfcp_ext.h
@@ -63,7 +63,6 @@ extern int  zfcp_qdio_allocate_queues(struct zfcp_adapter *);
 extern void zfcp_qdio_free_queues(struct zfcp_adapter *);
 extern int  zfcp_qdio_determine_pci(struct zfcp_qdio_queue *,
                                     struct zfcp_fsf_req *);
-extern int  zfcp_qdio_reqid_check(struct zfcp_adapter *, void *);
 
 extern volatile struct qdio_buffer_element *zfcp_qdio_sbale_req
         (struct zfcp_fsf_req *, int, int);
@@ -140,6 +139,7 @@ extern void zfcp_erp_modify_adapter_status(struct zfcp_adapter *, u32, int);
 extern int  zfcp_erp_adapter_reopen(struct zfcp_adapter *, int);
 extern int  zfcp_erp_adapter_shutdown(struct zfcp_adapter *, int);
 extern void zfcp_erp_adapter_failed(struct zfcp_adapter *);
+extern void zfcp_erp_action_dismiss_adapter(struct zfcp_adapter *);
 
 extern void zfcp_erp_modify_port_status(struct zfcp_port *, u32, int);
 extern int  zfcp_erp_port_reopen(struct zfcp_port *, int);
@@ -156,7 +156,7 @@ extern void zfcp_erp_unit_failed(struct zfcp_unit *);
 extern int  zfcp_erp_thread_setup(struct zfcp_adapter *);
 extern int  zfcp_erp_thread_kill(struct zfcp_adapter *);
 extern int  zfcp_erp_wait(struct zfcp_adapter *);
-extern int  zfcp_erp_async_handler(struct zfcp_erp_action *, unsigned long);
+extern void zfcp_erp_async_handler(struct zfcp_erp_action *, unsigned long);
 
 extern int  zfcp_test_link(struct zfcp_port *);
 
@@ -190,5 +190,10 @@ extern void zfcp_scsi_dbf_event_abort(const char *, struct zfcp_adapter *,
                                       struct zfcp_fsf_req *);
 extern void zfcp_scsi_dbf_event_devreset(const char *, u8, struct zfcp_unit *,
                                          struct scsi_cmnd *);
+extern void zfcp_reqlist_add(struct zfcp_adapter *, struct zfcp_fsf_req *);
+extern void zfcp_reqlist_remove(struct zfcp_adapter *, unsigned long);
+extern struct zfcp_fsf_req *zfcp_reqlist_ismember(struct zfcp_adapter *,
+                                                  unsigned long);
+extern int zfcp_reqlist_isempty(struct zfcp_adapter *);
 
 #endif  /* ZFCP_EXT_H */
diff --git a/drivers/s390/scsi/zfcp_fsf.c b/drivers/s390/scsi/zfcp_fsf.c
index 31db2b06faba..ff2eacf5ec8c 100644
--- a/drivers/s390/scsi/zfcp_fsf.c
+++ b/drivers/s390/scsi/zfcp_fsf.c
@@ -49,7 +49,6 @@ static int zfcp_fsf_fsfstatus_qual_eval(struct zfcp_fsf_req *);
 static void zfcp_fsf_link_down_info_eval(struct zfcp_adapter *,
         struct fsf_link_down_info *);
 static int zfcp_fsf_req_dispatch(struct zfcp_fsf_req *);
-static void zfcp_fsf_req_dismiss(struct zfcp_fsf_req *);
 
 /* association between FSF command and FSF QTCB type */
 static u32 fsf_qtcb_type[] = {
@@ -146,47 +145,48 @@ zfcp_fsf_req_free(struct zfcp_fsf_req *fsf_req)
                 kfree(fsf_req);
 }
 
-/*
- * function:    
- *
- * purpose:     
- *
- * returns:
- *
- * note: qdio queues shall be down (no ongoing inbound processing)
+/**
+ * zfcp_fsf_req_dismiss - dismiss a single fsf request
  */
-int
-zfcp_fsf_req_dismiss_all(struct zfcp_adapter *adapter)
+static void zfcp_fsf_req_dismiss(struct zfcp_adapter *adapter,
+                                 struct zfcp_fsf_req *fsf_req,
+                                 unsigned int counter)
 {
-        struct zfcp_fsf_req *fsf_req, *tmp;
-        unsigned long flags;
-        LIST_HEAD(remove_queue);
+        u64 dbg_tmp[2];
 
-        spin_lock_irqsave(&adapter->fsf_req_list_lock, flags);
-        list_splice_init(&adapter->fsf_req_list_head, &remove_queue);
-        atomic_set(&adapter->fsf_reqs_active, 0);
-        spin_unlock_irqrestore(&adapter->fsf_req_list_lock, flags);
-
-        list_for_each_entry_safe(fsf_req, tmp, &remove_queue, list) {
-                list_del(&fsf_req->list);
-                zfcp_fsf_req_dismiss(fsf_req);
-        }
-
-        return 0;
+        dbg_tmp[0] = (u64) atomic_read(&adapter->reqs_active);
+        dbg_tmp[1] = (u64) counter;
+        debug_event(adapter->erp_dbf, 4, (void *) dbg_tmp, 16);
+        list_del(&fsf_req->list);
+        fsf_req->status |= ZFCP_STATUS_FSFREQ_DISMISSED;
+        zfcp_fsf_req_complete(fsf_req);
 }
 
-/*
- * function:    
- *
- * purpose:     
- *
- * returns:
+/**
+ * zfcp_fsf_req_dismiss_all - dismiss all remaining fsf requests
  */
-static void
-zfcp_fsf_req_dismiss(struct zfcp_fsf_req *fsf_req)
+int zfcp_fsf_req_dismiss_all(struct zfcp_adapter *adapter)
 {
-        fsf_req->status |= ZFCP_STATUS_FSFREQ_DISMISSED;
-        zfcp_fsf_req_complete(fsf_req);
+        struct zfcp_fsf_req *request, *tmp;
+        unsigned long flags;
+        unsigned int i, counter;
+
+        spin_lock_irqsave(&adapter->req_list_lock, flags);
+        atomic_set(&adapter->reqs_active, 0);
+        for (i=0; i<REQUEST_LIST_SIZE; i++) {
+                if (list_empty(&adapter->req_list[i]))
+                        continue;
+
+                counter = 0;
+                list_for_each_entry_safe(request, tmp,
+                                         &adapter->req_list[i], list) {
+                        zfcp_fsf_req_dismiss(adapter, request, counter);
+                        counter++;
+                }
+        }
+        spin_unlock_irqrestore(&adapter->req_list_lock, flags);
+
+        return 0;
 }
 
 /*
@@ -4592,12 +4592,14 @@ static inline void
 zfcp_fsf_req_qtcb_init(struct zfcp_fsf_req *fsf_req)
 {
         if (likely(fsf_req->qtcb != NULL)) {
-                fsf_req->qtcb->prefix.req_seq_no = fsf_req->adapter->fsf_req_seq_no;
-                fsf_req->qtcb->prefix.req_id = (unsigned long)fsf_req;
+                fsf_req->qtcb->prefix.req_seq_no =
+                        fsf_req->adapter->fsf_req_seq_no;
+                fsf_req->qtcb->prefix.req_id = fsf_req->req_id;
                 fsf_req->qtcb->prefix.ulp_info = ZFCP_ULP_INFO_VERSION;
-                fsf_req->qtcb->prefix.qtcb_type = fsf_qtcb_type[fsf_req->fsf_command];
+                fsf_req->qtcb->prefix.qtcb_type =
+                        fsf_qtcb_type[fsf_req->fsf_command];
                 fsf_req->qtcb->prefix.qtcb_version = ZFCP_QTCB_VERSION;
-                fsf_req->qtcb->header.req_handle = (unsigned long)fsf_req;
+                fsf_req->qtcb->header.req_handle = fsf_req->req_id;
                 fsf_req->qtcb->header.fsf_command = fsf_req->fsf_command;
         }
 }
@@ -4654,6 +4656,7 @@ zfcp_fsf_req_create(struct zfcp_adapter *adapter, u32 fsf_cmd, int req_flags,
 {
         volatile struct qdio_buffer_element *sbale;
         struct zfcp_fsf_req *fsf_req = NULL;
+        unsigned long flags;
         int ret = 0;
         struct zfcp_qdio_queue *req_queue = &adapter->request_queue;
 
@@ -4668,6 +4671,12 @@ zfcp_fsf_req_create(struct zfcp_adapter *adapter, u32 fsf_cmd, int req_flags,
 
         fsf_req->adapter = adapter;
         fsf_req->fsf_command = fsf_cmd;
+        INIT_LIST_HEAD(&fsf_req->list);
+        
+        /* unique request id */
+        spin_lock_irqsave(&adapter->req_list_lock, flags);
+        fsf_req->req_id = adapter->req_no++;
+        spin_unlock_irqrestore(&adapter->req_list_lock, flags);
 
         zfcp_fsf_req_qtcb_init(fsf_req);
 
@@ -4707,7 +4716,7 @@ zfcp_fsf_req_create(struct zfcp_adapter *adapter, u32 fsf_cmd, int req_flags,
         sbale = zfcp_qdio_sbale_req(fsf_req, fsf_req->sbal_curr, 0);
 
         /* setup common SBALE fields */
-        sbale[0].addr = fsf_req;
+        sbale[0].addr = (void *) fsf_req->req_id;
         sbale[0].flags |= SBAL_FLAGS0_COMMAND;
         if (likely(fsf_req->qtcb != NULL)) {
                 sbale[1].addr = (void *) fsf_req->qtcb;
@@ -4747,7 +4756,7 @@ zfcp_fsf_req_send(struct zfcp_fsf_req *fsf_req, struct timer_list *timer)
         volatile struct qdio_buffer_element *sbale;
         int inc_seq_no;
         int new_distance_from_int;
-        unsigned long flags;
+        u64 dbg_tmp[2];
         int retval = 0;
 
         adapter = fsf_req->adapter;
@@ -4761,10 +4770,10 @@ zfcp_fsf_req_send(struct zfcp_fsf_req *fsf_req, struct timer_list *timer)
         ZFCP_HEX_DUMP(ZFCP_LOG_LEVEL_TRACE, (char *) sbale[1].addr,
                       sbale[1].length);
 
-        /* put allocated FSF request at list tail */
-        spin_lock_irqsave(&adapter->fsf_req_list_lock, flags);
-        list_add_tail(&fsf_req->list, &adapter->fsf_req_list_head);
-        spin_unlock_irqrestore(&adapter->fsf_req_list_lock, flags);
+        /* put allocated FSF request into hash table */
+        spin_lock(&adapter->req_list_lock);
+        zfcp_reqlist_add(adapter, fsf_req);
+        spin_unlock(&adapter->req_list_lock);
 
         inc_seq_no = (fsf_req->qtcb != NULL);
 
@@ -4803,6 +4812,10 @@ zfcp_fsf_req_send(struct zfcp_fsf_req *fsf_req, struct timer_list *timer)
                          QDIO_FLAG_SYNC_OUTPUT,
                          0, fsf_req->sbal_first, fsf_req->sbal_number, NULL);
 
+        dbg_tmp[0] = (unsigned long) sbale[0].addr;
+        dbg_tmp[1] = (u64) retval;
+        debug_event(adapter->erp_dbf, 4, (void *) dbg_tmp, 16);
+
         if (unlikely(retval)) {
                 /* Queues are down..... */
                 retval = -EIO;
@@ -4812,22 +4825,17 @@ zfcp_fsf_req_send(struct zfcp_fsf_req *fsf_req, struct timer_list *timer)
                  */
                 if (timer)
                         del_timer(timer);
-                spin_lock_irqsave(&adapter->fsf_req_list_lock, flags);
-                list_del(&fsf_req->list);
-                spin_unlock_irqrestore(&adapter->fsf_req_list_lock, flags);
-                /*
-                 * adjust the number of free SBALs in request queue as well as
-                 * position of first one
-                 */
+                spin_lock(&adapter->req_list_lock);
+                zfcp_reqlist_remove(adapter, fsf_req->req_id);
+                spin_unlock(&adapter->req_list_lock);
+                /* undo changes in request queue made for this request */
                 zfcp_qdio_zero_sbals(req_queue->buffer,
                                      fsf_req->sbal_first, fsf_req->sbal_number);
                 atomic_add(fsf_req->sbal_number, &req_queue->free_count);
-                req_queue->free_index -= fsf_req->sbal_number;   /* increase */
+                req_queue->free_index -= fsf_req->sbal_number;
                 req_queue->free_index += QDIO_MAX_BUFFERS_PER_Q;
                 req_queue->free_index %= QDIO_MAX_BUFFERS_PER_Q; /* wrap */
-                ZFCP_LOG_DEBUG
-                        ("error: do_QDIO failed. Buffers could not be enqueued "
-                         "to request queue.\n");
+                zfcp_erp_adapter_reopen(adapter, 0);
         } else {
                 req_queue->distance_from_int = new_distance_from_int;
                 /*
@@ -4843,7 +4851,7 @@ zfcp_fsf_req_send(struct zfcp_fsf_req *fsf_req, struct timer_list *timer)
                         adapter->fsf_req_seq_no++;
 
                 /* count FSF requests pending */
-                atomic_inc(&adapter->fsf_reqs_active);
+                atomic_inc(&adapter->reqs_active);
         }
         return retval;
 }
diff --git a/drivers/s390/scsi/zfcp_qdio.c b/drivers/s390/scsi/zfcp_qdio.c
index 49ea5add4abc..dbd9f48e863e 100644
--- a/drivers/s390/scsi/zfcp_qdio.c
+++ b/drivers/s390/scsi/zfcp_qdio.c
@@ -282,6 +282,37 @@ zfcp_qdio_request_handler(struct ccw_device *ccw_device,
         return;
 }
 
+/**
+ * zfcp_qdio_reqid_check - checks for valid reqids or unsolicited status
+ */
+static int zfcp_qdio_reqid_check(struct zfcp_adapter *adapter, 
+                                 unsigned long req_id)
+{
+        struct zfcp_fsf_req *fsf_req;
+        unsigned long flags;
+
+        debug_long_event(adapter->erp_dbf, 4, req_id);
+
+        spin_lock_irqsave(&adapter->req_list_lock, flags);
+        fsf_req = zfcp_reqlist_ismember(adapter, req_id);
+
+        if (!fsf_req) {
+                spin_unlock_irqrestore(&adapter->req_list_lock, flags);
+                ZFCP_LOG_NORMAL("error: unknown request id (%ld).\n", req_id);
+                zfcp_erp_adapter_reopen(adapter, 0);
+                return -EINVAL;
+        }
+
+        zfcp_reqlist_remove(adapter, req_id);
+        atomic_dec(&adapter->reqs_active);
+        spin_unlock_irqrestore(&adapter->req_list_lock, flags);
+
+        /* finish the FSF request */
+        zfcp_fsf_req_complete(fsf_req);
+
+        return 0;
+}
+
 /*
  * function:    zfcp_qdio_response_handler
  *
@@ -344,7 +375,7 @@ zfcp_qdio_response_handler(struct ccw_device *ccw_device,
                         /* look for QDIO request identifiers in SB */
                         buffere = &buffer->element[buffere_index];
                         retval = zfcp_qdio_reqid_check(adapter,
-                                                       (void *) buffere->addr);
+                                        (unsigned long) buffere->addr);
 
                         if (retval) {
                                 ZFCP_LOG_NORMAL("bug: unexpected inbound "
@@ -415,52 +446,6 @@ zfcp_qdio_response_handler(struct ccw_device *ccw_device,
         return;
 }
 
-/*
- * function:    zfcp_qdio_reqid_check
- *
- * purpose:     checks for valid reqids or unsolicited status
- *
- * returns:     0 - valid request id or unsolicited status
- *              !0 - otherwise
- */
-int
-zfcp_qdio_reqid_check(struct zfcp_adapter *adapter, void *sbale_addr)
-{
-        struct zfcp_fsf_req *fsf_req;
-        unsigned long flags;
-
-        /* invalid (per convention used in this driver) */
-        if (unlikely(!sbale_addr)) {
-                ZFCP_LOG_NORMAL("bug: invalid reqid\n");
-                return -EINVAL;
-        }
-
-        /* valid request id and thus (hopefully :) valid fsf_req address */
-        fsf_req = (struct zfcp_fsf_req *) sbale_addr;
-
-        /* serialize with zfcp_fsf_req_dismiss_all */
-        spin_lock_irqsave(&adapter->fsf_req_list_lock, flags);
-        if (list_empty(&adapter->fsf_req_list_head)) {
-                spin_unlock_irqrestore(&adapter->fsf_req_list_lock, flags);
-                return 0;
-        }
-        list_del(&fsf_req->list);
-        atomic_dec(&adapter->fsf_reqs_active);
-        spin_unlock_irqrestore(&adapter->fsf_req_list_lock, flags);
-
-        if (unlikely(adapter != fsf_req->adapter)) {
-                ZFCP_LOG_NORMAL("bug: invalid reqid (fsf_req=%p, "
-                                "fsf_req->adapter=%p, adapter=%p)\n",
-                                fsf_req, fsf_req->adapter, adapter);
-                return -EINVAL;
-        }
-
-        /* finish the FSF request */
-        zfcp_fsf_req_complete(fsf_req);
-
-        return 0;
-}
-
 /**
  * zfcp_qdio_sbale_get - return pointer to SBALE of qdio_queue
  * @queue: queue from which SBALE should be returned
diff --git a/drivers/s390/scsi/zfcp_scsi.c b/drivers/s390/scsi/zfcp_scsi.c
index 671f4a6a5d18..1bb55086db9f 100644
--- a/drivers/s390/scsi/zfcp_scsi.c
+++ b/drivers/s390/scsi/zfcp_scsi.c
@@ -30,7 +30,6 @@ static int zfcp_scsi_queuecommand(struct scsi_cmnd *,
                                   void (*done) (struct scsi_cmnd *));
 static int zfcp_scsi_eh_abort_handler(struct scsi_cmnd *);
 static int zfcp_scsi_eh_device_reset_handler(struct scsi_cmnd *);
-static int zfcp_scsi_eh_bus_reset_handler(struct scsi_cmnd *);
 static int zfcp_scsi_eh_host_reset_handler(struct scsi_cmnd *);
 static int zfcp_task_management_function(struct zfcp_unit *, u8,
                                          struct scsi_cmnd *);
@@ -46,30 +45,22 @@ struct zfcp_data zfcp_data = {
         .scsi_host_template = {
                 .name                   = ZFCP_NAME,
                 .proc_name              = "zfcp",
-                .proc_info              = NULL,
-                .detect                 = NULL,
                 .slave_alloc            = zfcp_scsi_slave_alloc,
                 .slave_configure        = zfcp_scsi_slave_configure,
                 .slave_destroy          = zfcp_scsi_slave_destroy,
                 .queuecommand           = zfcp_scsi_queuecommand,
                 .eh_abort_handler       = zfcp_scsi_eh_abort_handler,
                 .eh_device_reset_handler = zfcp_scsi_eh_device_reset_handler,
-                .eh_bus_reset_handler   = zfcp_scsi_eh_bus_reset_handler,
+                .eh_bus_reset_handler   = zfcp_scsi_eh_host_reset_handler,
                 .eh_host_reset_handler  = zfcp_scsi_eh_host_reset_handler,
                 .can_queue              = 4096,
                 .this_id                = -1,
-                /*
-                 * FIXME:
-                 * one less? can zfcp_create_sbale cope with it?
-                 */
                 .sg_tablesize           = ZFCP_MAX_SBALES_PER_REQ,
                 .cmd_per_lun            = 1,
-                .unchecked_isa_dma      = 0,
                 .use_clustering         = 1,
                 .sdev_attrs             = zfcp_sysfs_sdev_attrs,
         },
         .driver_version = ZFCP_VERSION,
-        /* rest initialised with zeros */
 };
 
 /* Find start of Response Information in FCP response unit*/
@@ -176,8 +167,14 @@ zfcp_scsi_slave_alloc(struct scsi_device *sdp)
         return retval;
 }
 
-static void
-zfcp_scsi_slave_destroy(struct scsi_device *sdpnt)
+/**
+ * zfcp_scsi_slave_destroy - called when scsi device is removed
+ *
+ * Remove reference to associated scsi device for an zfcp_unit.
+ * Mark zfcp_unit as failed. The scsi device might be deleted via sysfs
+ * or a scan for this device might have failed.
+ */
+static void zfcp_scsi_slave_destroy(struct scsi_device *sdpnt)
 {
         struct zfcp_unit *unit = (struct zfcp_unit *) sdpnt->hostdata;
 
@@ -185,6 +182,7 @@ zfcp_scsi_slave_destroy(struct scsi_device *sdpnt)
                 atomic_clear_mask(ZFCP_STATUS_UNIT_REGISTERED, &unit->status);
                 sdpnt->hostdata = NULL;
                 unit->device = NULL;
+                zfcp_erp_unit_failed(unit);
                 zfcp_unit_put(unit);
         } else {
                 ZFCP_LOG_NORMAL("bug: no unit associated with SCSI device at "
@@ -549,35 +547,38 @@ zfcp_task_management_function(struct zfcp_unit *unit, u8 tm_flags,
 }
 
 /**
- * zfcp_scsi_eh_bus_reset_handler - reset bus (reopen adapter)
+ * zfcp_scsi_eh_host_reset_handler - handler for host and bus reset
+ *
+ * If ERP is already running it will be stopped.
  */
-int
-zfcp_scsi_eh_bus_reset_handler(struct scsi_cmnd *scpnt)
+int zfcp_scsi_eh_host_reset_handler(struct scsi_cmnd *scpnt)
 {
-        struct zfcp_unit *unit = (struct zfcp_unit*) scpnt->device->hostdata;
-        struct zfcp_adapter *adapter = unit->port->adapter;
-
-        ZFCP_LOG_NORMAL("bus reset because of problems with "
-                        "unit 0x%016Lx\n", unit->fcp_lun);
-        zfcp_erp_adapter_reopen(adapter, 0);
-        zfcp_erp_wait(adapter);
-
-        return SUCCESS;
-}
+        struct zfcp_unit *unit;
+        struct zfcp_adapter *adapter;
+        unsigned long flags;
 
-/**
- * zfcp_scsi_eh_host_reset_handler - reset host (reopen adapter)
- */
-int
-zfcp_scsi_eh_host_reset_handler(struct scsi_cmnd *scpnt)
-{
-        struct zfcp_unit *unit = (struct zfcp_unit*) scpnt->device->hostdata;
-        struct zfcp_adapter *adapter = unit->port->adapter;
+        unit = (struct zfcp_unit*) scpnt->device->hostdata;
+        adapter = unit->port->adapter;
 
-        ZFCP_LOG_NORMAL("host reset because of problems with "
+        ZFCP_LOG_NORMAL("host/bus reset because of problems with "
                         "unit 0x%016Lx\n", unit->fcp_lun);
-        zfcp_erp_adapter_reopen(adapter, 0);
-        zfcp_erp_wait(adapter);
+
+        write_lock_irqsave(&adapter->erp_lock, flags);
+        if (atomic_test_mask(ZFCP_STATUS_ADAPTER_ERP_PENDING,
+                             &adapter->status)) {
+                zfcp_erp_modify_adapter_status(adapter,
+                       ZFCP_STATUS_COMMON_UNBLOCKED|ZFCP_STATUS_COMMON_OPEN,
+                       ZFCP_CLEAR);
+                zfcp_erp_action_dismiss_adapter(adapter);
+                write_unlock_irqrestore(&adapter->erp_lock, flags);
+                zfcp_fsf_req_dismiss_all(adapter);
+                adapter->fsf_req_seq_no = 0;
+                zfcp_erp_adapter_reopen(adapter, 0);
+        } else {
+                write_unlock_irqrestore(&adapter->erp_lock, flags);
+                zfcp_erp_adapter_reopen(adapter, 0);
+                zfcp_erp_wait(adapter);
+        }
 
         return SUCCESS;
 }
diff --git a/drivers/scsi/ata_piix.c b/drivers/scsi/ata_piix.c
index 5e8afc876980..2d20caf377f5 100644
--- a/drivers/scsi/ata_piix.c
+++ b/drivers/scsi/ata_piix.c
@@ -390,7 +390,8 @@ static struct ata_port_info piix_port_info[] = {
         /* ich5_sata */
         {
                 .sht            = &piix_sht,
-                .host_flags     = ATA_FLAG_SATA | PIIX_FLAG_CHECKINTR,
+                .host_flags     = ATA_FLAG_SATA | PIIX_FLAG_CHECKINTR |
+                                  PIIX_FLAG_IGNORE_PCS,
                 .pio_mask       = 0x1f, /* pio0-4 */
                 .mwdma_mask     = 0x07, /* mwdma0-2 */
                 .udma_mask      = 0x7f, /* udma0-6 */
@@ -467,6 +468,11 @@ MODULE_LICENSE("GPL");
 MODULE_DEVICE_TABLE(pci, piix_pci_tbl);
 MODULE_VERSION(DRV_VERSION);
 
+static int force_pcs = 0;
+module_param(force_pcs, int, 0444);
+MODULE_PARM_DESC(force_pcs, "force honoring or ignoring PCS to work around "
+                 "device mis-detection (0=default, 1=ignore PCS, 2=honor PCS)");
+
 /**
  *      piix_pata_cbl_detect - Probe host controller cable detect info
  *      @ap: Port for which cable detect info is desired
@@ -531,27 +537,25 @@ static void piix_pata_error_handler(struct ata_port *ap)
 }
 
 /**
- *      piix_sata_prereset - prereset for SATA host controller
+ *      piix_sata_present_mask - determine present mask for SATA host controller
  *      @ap: Target port
  *
- *      Reads and configures SATA PCI device's PCI config register
- *      Port Configuration and Status (PCS) to determine port and
- *      device availability.  Return -ENODEV to skip reset if no
- *      device is present.
+ *      Reads SATA PCI device's PCI config register Port Configuration
+ *      and Status (PCS) to determine port and device availability.
  *
  *      LOCKING:
  *      None (inherited from caller).
  *
  *      RETURNS:
- *      0 if device is present, -ENODEV otherwise.
+ *      determined present_mask
  */
-static int piix_sata_prereset(struct ata_port *ap)
+static unsigned int piix_sata_present_mask(struct ata_port *ap)
 {
         struct pci_dev *pdev = to_pci_dev(ap->host_set->dev);
         struct piix_host_priv *hpriv = ap->host_set->private_data;
         const unsigned int *map = hpriv->map;
         int base = 2 * ap->hard_port_no;
-        unsigned int present = 0;
+        unsigned int present_mask = 0;
         int port, i;
         u16 pcs;
 
@@ -564,24 +568,52 @@ static int piix_sata_prereset(struct ata_port *ap)
                         continue;
                 if ((ap->flags & PIIX_FLAG_IGNORE_PCS) ||
                     (pcs & 1 << (hpriv->map_db->present_shift + port)))
-                        present = 1;
+                        present_mask |= 1 << i;
         }
 
-        DPRINTK("ata%u: LEAVE, pcs=0x%x present=0x%x\n",
-                ap->id, pcs, present);
+        DPRINTK("ata%u: LEAVE, pcs=0x%x present_mask=0x%x\n",
+                ap->id, pcs, present_mask);
 
-        if (!present) {
-                ata_port_printk(ap, KERN_INFO, "SATA port has no device.\n");
-                ap->eh_context.i.action &= ~ATA_EH_RESET_MASK;
-                return 0;
+        return present_mask;
+}
+
+/**
+ *      piix_sata_softreset - reset SATA host port via ATA SRST
+ *      @ap: port to reset
+ *      @classes: resulting classes of attached devices
+ *
+ *      Reset SATA host port via ATA SRST.  On controllers with
+ *      reliable PCS present bits, the bits are used to determine
+ *      device presence.
+ *
+ *      LOCKING:
+ *      Kernel thread context (may sleep)
+ *
+ *      RETURNS:
+ *      0 on success, -errno otherwise.
+ */
+static int piix_sata_softreset(struct ata_port *ap, unsigned int *classes)
+{
+        unsigned int present_mask;
+        int i, rc;
+
+        present_mask = piix_sata_present_mask(ap);
+
+        rc = ata_std_softreset(ap, classes);
+        if (rc)
+                return rc;
+
+        for (i = 0; i < ATA_MAX_DEVICES; i++) {
+                if (!(present_mask & (1 << i)))
+                        classes[i] = ATA_DEV_NONE;
         }
 
-        return ata_std_prereset(ap);
+        return 0;
 }
 
 static void piix_sata_error_handler(struct ata_port *ap)
 {
-        ata_bmdma_drive_eh(ap, piix_sata_prereset, ata_std_softreset, NULL,
+        ata_bmdma_drive_eh(ap, ata_std_prereset, piix_sata_softreset, NULL,
                            ata_std_postreset);
 }
 
@@ -785,6 +817,7 @@ static int __devinit piix_check_450nx_errata(struct pci_dev *ata_dev)
 }
 
 static void __devinit piix_init_pcs(struct pci_dev *pdev,
+                                    struct ata_port_info *pinfo,
                                     const struct piix_map_db *map_db)
 {
         u16 pcs, new_pcs;
@@ -798,6 +831,18 @@ static void __devinit piix_init_pcs(struct pci_dev *pdev,
                 pci_write_config_word(pdev, ICH5_PCS, new_pcs);
                 msleep(150);
         }
+
+        if (force_pcs == 1) {
+                dev_printk(KERN_INFO, &pdev->dev,
+                           "force ignoring PCS (0x%x)\n", new_pcs);
+                pinfo[0].host_flags |= PIIX_FLAG_IGNORE_PCS;
+                pinfo[1].host_flags |= PIIX_FLAG_IGNORE_PCS;
+        } else if (force_pcs == 2) {
+                dev_printk(KERN_INFO, &pdev->dev,
+                           "force honoring PCS (0x%x)\n", new_pcs);
+                pinfo[0].host_flags &= ~PIIX_FLAG_IGNORE_PCS;
+                pinfo[1].host_flags &= ~PIIX_FLAG_IGNORE_PCS;
+        }
 }
 
 static void __devinit piix_init_sata_map(struct pci_dev *pdev,
@@ -906,7 +951,8 @@ static int piix_init_one (struct pci_dev *pdev, const struct pci_device_id *ent)
         if (host_flags & ATA_FLAG_SATA) {
                 piix_init_sata_map(pdev, port_info,
                                    piix_map_db_table[ent->driver_data]);
-                piix_init_pcs(pdev, piix_map_db_table[ent->driver_data]);
+                piix_init_pcs(pdev, port_info,
+                              piix_map_db_table[ent->driver_data]);
         }
 
         /* On ICH5, some BIOSen disable the interrupt using the
diff --git a/drivers/scsi/esp.c b/drivers/scsi/esp.c
index 98bd22714d0d..5630868c1b25 100644
--- a/drivers/scsi/esp.c
+++ b/drivers/scsi/esp.c
@@ -1146,7 +1146,7 @@ static struct sbus_dev sun4_esp_dev;
 static int __init esp_sun4_probe(struct scsi_host_template *tpnt)
 {
         if (sun4_esp_physaddr) {
-                memset(&sun4_esp_dev, 0, sizeof(esp_dev));
+                memset(&sun4_esp_dev, 0, sizeof(sun4_esp_dev));
                 sun4_esp_dev.reg_addrs[0].phys_addr = sun4_esp_physaddr;
                 sun4_esp_dev.irqs[0] = 4;
                 sun4_esp_dev.resource[0].start = sun4_esp_physaddr;
@@ -1162,6 +1162,7 @@ static int __init esp_sun4_probe(struct scsi_host_template *tpnt)
 
 static int __devexit esp_sun4_remove(void)
 {
+        struct of_device *dev = &sun4_esp_dev.ofdev;
         struct esp *esp = dev_get_drvdata(&dev->dev);
 
         return esp_remove_common(esp);
diff --git a/drivers/scsi/hptiop.c b/drivers/scsi/hptiop.c
index ab2f8b267908..bcb3444f1dcf 100644
--- a/drivers/scsi/hptiop.c
+++ b/drivers/scsi/hptiop.c
@@ -45,10 +45,6 @@ static char driver_name[] = "hptiop";
 static const char driver_name_long[] = "RocketRAID 3xxx SATA Controller driver";
 static const char driver_ver[] = "v1.0 (060426)";
 
-static DEFINE_SPINLOCK(hptiop_hba_list_lock);
-static LIST_HEAD(hptiop_hba_list);
-static int hptiop_cdev_major = -1;
-
 static void hptiop_host_request_callback(struct hptiop_hba *hba, u32 tag);
 static void hptiop_iop_request_callback(struct hptiop_hba *hba, u32 tag);
 static void hptiop_message_callback(struct hptiop_hba *hba, u32 msg);
@@ -577,7 +573,7 @@ static int hptiop_reset_hba(struct hptiop_hba *hba)
         if (atomic_xchg(&hba->resetting, 1) == 0) {
                 atomic_inc(&hba->reset_count);
                 writel(IOPMU_INBOUND_MSG0_RESET,
-                                &hba->iop->outbound_msgaddr0);
+                                &hba->iop->inbound_msgaddr0);
                 hptiop_pci_posting_flush(hba->iop);
         }
 
@@ -620,532 +616,11 @@ static int hptiop_adjust_disk_queue_depth(struct scsi_device *sdev,
         return queue_depth;
 }
 
-struct hptiop_getinfo {
-        char __user *buffer;
-        loff_t buflength;
-        loff_t bufoffset;
-        loff_t buffillen;
-        loff_t filpos;
-};
-
-static void hptiop_copy_mem_info(struct hptiop_getinfo *pinfo,
-                                        char *data, int datalen)
-{
-        if (pinfo->filpos < pinfo->bufoffset) {
-                if (pinfo->filpos + datalen <= pinfo->bufoffset) {
-                        pinfo->filpos += datalen;
-                        return;
-                } else {
-                        data += (pinfo->bufoffset - pinfo->filpos);
-                        datalen  -= (pinfo->bufoffset - pinfo->filpos);
-                        pinfo->filpos = pinfo->bufoffset;
-                }
-        }
-
-        pinfo->filpos += datalen;
-        if (pinfo->buffillen == pinfo->buflength)
-                return;
-
-        if (pinfo->buflength - pinfo->buffillen < datalen)
-                datalen = pinfo->buflength - pinfo->buffillen;
-
-        if (copy_to_user(pinfo->buffer + pinfo->buffillen, data, datalen))
-                return;
-
-        pinfo->buffillen += datalen;
-}
-
-static int hptiop_copy_info(struct hptiop_getinfo *pinfo, char *fmt, ...)
-{
-        va_list args;
-        char buf[128];
-        int len;
-
-        va_start(args, fmt);
-        len = vsnprintf(buf, sizeof(buf), fmt, args);
-        va_end(args);
-        hptiop_copy_mem_info(pinfo, buf, len);
-        return len;
-}
-
-static void hptiop_ioctl_done(struct hpt_ioctl_k *arg)
-{
-        arg->done = NULL;
-        wake_up(&arg->hba->ioctl_wq);
-}
-
-static void hptiop_do_ioctl(struct hpt_ioctl_k *arg)
-{
-        struct hptiop_hba *hba = arg->hba;
-        u32 val;
-        struct hpt_iop_request_ioctl_command __iomem *req;
-        int ioctl_retry = 0;
-
-        dprintk("scsi%d: hptiop_do_ioctl\n", hba->host->host_no);
-
-        /*
-         * check (in + out) buff size from application.
-         * outbuf must be dword aligned.
-         */
-        if (((arg->inbuf_size + 3) & ~3) + arg->outbuf_size >
-                        hba->max_request_size
-                                - sizeof(struct hpt_iop_request_header)
-                                - 4 * sizeof(u32)) {
-                dprintk("scsi%d: ioctl buf size (%d/%d) is too large\n",
-                                hba->host->host_no,
-                                arg->inbuf_size, arg->outbuf_size);
-                arg->result = HPT_IOCTL_RESULT_FAILED;
-                return;
-        }
-
-retry:
-        spin_lock_irq(hba->host->host_lock);
-
-        val = readl(&hba->iop->inbound_queue);
-        if (val == IOPMU_QUEUE_EMPTY) {
-                spin_unlock_irq(hba->host->host_lock);
-                dprintk("scsi%d: no free req for ioctl\n", hba->host->host_no);
-                arg->result = -1;
-                return;
-        }
-
-        req = (struct hpt_iop_request_ioctl_command __iomem *)
-                        ((unsigned long)hba->iop + val);
-
-        writel(HPT_CTL_CODE_LINUX_TO_IOP(arg->ioctl_code),
-                        &req->ioctl_code);
-        writel(arg->inbuf_size, &req->inbuf_size);
-        writel(arg->outbuf_size, &req->outbuf_size);
-
-        /*
-         * use the buffer on the IOP local memory first, then copy it
-         * back to host.
-         * the caller's request buffer shoudl be little-endian.
-         */
-        if (arg->inbuf_size)
-                memcpy_toio(req->buf, arg->inbuf, arg->inbuf_size);
-
-        /* correct the controller ID for IOP */
-        if ((arg->ioctl_code == HPT_IOCTL_GET_CHANNEL_INFO ||
-                arg->ioctl_code == HPT_IOCTL_GET_CONTROLLER_INFO_V2 ||
-                arg->ioctl_code == HPT_IOCTL_GET_CONTROLLER_INFO)
-                && arg->inbuf_size >= sizeof(u32))
-                writel(0, req->buf);
-
-        writel(IOP_REQUEST_TYPE_IOCTL_COMMAND, &req->header.type);
-        writel(0, &req->header.flags);
-        writel(offsetof(struct hpt_iop_request_ioctl_command, buf)
-                        + arg->inbuf_size, &req->header.size);
-        writel((u32)(unsigned long)arg, &req->header.context);
-        writel(BITS_PER_LONG > 32 ? (u32)((unsigned long)arg>>32) : 0,
-                        &req->header.context_hi32);
-        writel(IOP_RESULT_PENDING, &req->header.result);
-
-        arg->result = HPT_IOCTL_RESULT_FAILED;
-        arg->done = hptiop_ioctl_done;
-
-        writel(val, &hba->iop->inbound_queue);
-        hptiop_pci_posting_flush(hba->iop);
-
-        spin_unlock_irq(hba->host->host_lock);
-
-        wait_event_timeout(hba->ioctl_wq, arg->done == NULL, 60 * HZ);
-
-        if (arg->done != NULL) {
-                hptiop_reset_hba(hba);
-                if (ioctl_retry++ < 3)
-                        goto retry;
-        }
-
-        dprintk("hpt_iop_ioctl %x result %d\n",
-                        arg->ioctl_code, arg->result);
-}
-
-static int __hpt_do_ioctl(struct hptiop_hba *hba, u32 code, void *inbuf,
-                        u32 insize, void *outbuf, u32 outsize)
-{
-        struct hpt_ioctl_k arg;
-        arg.hba = hba;
-        arg.ioctl_code = code;
-        arg.inbuf = inbuf;
-        arg.outbuf = outbuf;
-        arg.inbuf_size = insize;
-        arg.outbuf_size = outsize;
-        arg.bytes_returned = NULL;
-        hptiop_do_ioctl(&arg);
-        return arg.result;
-}
-
-static inline int hpt_id_valid(__le32 id)
-{
-        return id != 0 && id != cpu_to_le32(0xffffffff);
-}
-
-static int hptiop_get_controller_info(struct hptiop_hba *hba,
-                                        struct hpt_controller_info *pinfo)
-{
-        int id = 0;
-
-        return __hpt_do_ioctl(hba, HPT_IOCTL_GET_CONTROLLER_INFO,
-                &id, sizeof(int), pinfo, sizeof(*pinfo));
-}
-
-
-static int hptiop_get_channel_info(struct hptiop_hba *hba, int bus,
-                                        struct hpt_channel_info *pinfo)
-{
-        u32 ids[2];
-
-        ids[0] = 0;
-        ids[1] = bus;
-        return __hpt_do_ioctl(hba, HPT_IOCTL_GET_CHANNEL_INFO,
-                                ids, sizeof(ids), pinfo, sizeof(*pinfo));
-
-}
-
-static int hptiop_get_logical_devices(struct hptiop_hba *hba,
-                                        __le32 *pids, int maxcount)
-{
-        int i;
-        u32 count = maxcount - 1;
-
-        if (__hpt_do_ioctl(hba, HPT_IOCTL_GET_LOGICAL_DEVICES,
-                        &count, sizeof(u32),
-                        pids, sizeof(u32) * maxcount))
-                return -1;
-
-        maxcount = le32_to_cpu(pids[0]);
-        for (i = 0; i < maxcount; i++)
-                pids[i] = pids[i+1];
-
-        return maxcount;
-}
-
-static int hptiop_get_device_info_v3(struct hptiop_hba *hba, __le32 id,
-                                struct hpt_logical_device_info_v3 *pinfo)
-{
-        return __hpt_do_ioctl(hba, HPT_IOCTL_GET_DEVICE_INFO_V3,
-                                &id, sizeof(u32),
-                                pinfo, sizeof(*pinfo));
-}
-
-static const char *get_array_status(struct hpt_logical_device_info_v3 *devinfo)
-{
-        static char s[64];
-        u32 flags = le32_to_cpu(devinfo->u.array.flags);
-        u32 trans_prog = le32_to_cpu(devinfo->u.array.transforming_progress);
-        u32 reb_prog = le32_to_cpu(devinfo->u.array.rebuilding_progress);
-
-        if (flags & ARRAY_FLAG_DISABLED)
-                return "Disabled";
-        else if (flags & ARRAY_FLAG_TRANSFORMING)
-                sprintf(s, "Expanding/Migrating %d.%d%%%s%s",
-                        trans_prog / 100,
-                        trans_prog % 100,
-                        (flags & (ARRAY_FLAG_NEEDBUILDING|ARRAY_FLAG_BROKEN))?
-                                        ", Critical" : "",
-                        ((flags & ARRAY_FLAG_NEEDINITIALIZING) &&
-                         !(flags & ARRAY_FLAG_REBUILDING) &&
-                         !(flags & ARRAY_FLAG_INITIALIZING))?
-                                        ", Unintialized" : "");
-        else if ((flags & ARRAY_FLAG_BROKEN) &&
-                                devinfo->u.array.array_type != AT_RAID6)
-                return "Critical";
-        else if (flags & ARRAY_FLAG_REBUILDING)
-                sprintf(s,
-                        (flags & ARRAY_FLAG_NEEDINITIALIZING)?
-                                "%sBackground initializing %d.%d%%" :
-                                        "%sRebuilding %d.%d%%",
-                        (flags & ARRAY_FLAG_BROKEN)? "Critical, " : "",
-                        reb_prog / 100,
-                        reb_prog % 100);
-        else if (flags & ARRAY_FLAG_VERIFYING)
-                sprintf(s, "%sVerifying %d.%d%%",
-                        (flags & ARRAY_FLAG_BROKEN)? "Critical, " : "",
-                        reb_prog / 100,
-                        reb_prog % 100);
-        else if (flags & ARRAY_FLAG_INITIALIZING)
-                sprintf(s, "%sForground initializing %d.%d%%",
-                        (flags & ARRAY_FLAG_BROKEN)? "Critical, " : "",
-                        reb_prog / 100,
-                        reb_prog % 100);
-        else if (flags & ARRAY_FLAG_NEEDTRANSFORM)
-                sprintf(s,"%s%s%s", "Need Expanding/Migrating",
-                        (flags & ARRAY_FLAG_BROKEN)? "Critical, " : "",
-                        ((flags & ARRAY_FLAG_NEEDINITIALIZING) &&
-                         !(flags & ARRAY_FLAG_REBUILDING) &&
-                         !(flags & ARRAY_FLAG_INITIALIZING))?
-                                ", Unintialized" : "");
-        else if (flags & ARRAY_FLAG_NEEDINITIALIZING &&
-                !(flags & ARRAY_FLAG_REBUILDING) &&
-                !(flags & ARRAY_FLAG_INITIALIZING))
-                sprintf(s,"%sUninitialized",
-                        (flags & ARRAY_FLAG_BROKEN)? "Critical, " : "");
-        else if ((flags & ARRAY_FLAG_NEEDBUILDING) ||
-                        (flags & ARRAY_FLAG_BROKEN))
-                return "Critical";
-        else
-                return "Normal";
-        return s;
-}
-
-static void hptiop_dump_devinfo(struct hptiop_hba *hba,
-                        struct hptiop_getinfo *pinfo, __le32 id, int indent)
-{
-        struct hpt_logical_device_info_v3 devinfo;
-        int i;
-        u64 capacity;
-
-        for (i = 0; i < indent; i++)
-                hptiop_copy_info(pinfo, "\t");
-
-        if (hptiop_get_device_info_v3(hba, id, &devinfo)) {
-                hptiop_copy_info(pinfo, "unknown\n");
-                return;
-        }
-
-        switch (devinfo.type) {
-
-        case LDT_DEVICE: {
-                struct hd_driveid *driveid;
-                u32 flags = le32_to_cpu(devinfo.u.device.flags);
-
-                driveid = (struct hd_driveid *)devinfo.u.device.ident;
-                /* model[] is 40 chars long, but we just want 20 chars here */
-                driveid->model[20] = 0;
-
-                if (indent)
-                        if (flags & DEVICE_FLAG_DISABLED)
-                                hptiop_copy_info(pinfo,"Missing\n");
-                        else
-                                hptiop_copy_info(pinfo, "CH%d %s\n",
-                                        devinfo.u.device.path_id + 1,
-                                        driveid->model);
-                else {
-                        capacity = le64_to_cpu(devinfo.capacity) * 512;
-                        do_div(capacity, 1000000);
-                        hptiop_copy_info(pinfo,
-                                "CH%d %s, %lluMB, %s %s%s%s%s\n",
-                                devinfo.u.device.path_id + 1,
-                                driveid->model,
-                                capacity,
-                                (flags & DEVICE_FLAG_DISABLED)?
-                                        "Disabled" : "Normal",
-                                devinfo.u.device.read_ahead_enabled?
-                                                "[RA]" : "",
-                                devinfo.u.device.write_cache_enabled?
-                                                "[WC]" : "",
-                                devinfo.u.device.TCQ_enabled?
-                                                "[TCQ]" : "",
-                                devinfo.u.device.NCQ_enabled?
-                                                "[NCQ]" : ""
-                        );
-                }
-                break;
-        }
-
-        case LDT_ARRAY:
-                if (devinfo.target_id != INVALID_TARGET_ID)
-                        hptiop_copy_info(pinfo, "[DISK %d_%d] ",
-                                        devinfo.vbus_id, devinfo.target_id);
-
-                capacity = le64_to_cpu(devinfo.capacity) * 512;
-                do_div(capacity, 1000000);
-                hptiop_copy_info(pinfo, "%s (%s), %lluMB, %s\n",
-                        devinfo.u.array.name,
-                        devinfo.u.array.array_type==AT_RAID0? "RAID0" :
-                                devinfo.u.array.array_type==AT_RAID1? "RAID1" :
-                                devinfo.u.array.array_type==AT_RAID5? "RAID5" :
-                                devinfo.u.array.array_type==AT_RAID6? "RAID6" :
-                                devinfo.u.array.array_type==AT_JBOD? "JBOD" :
-                                        "unknown",
-                        capacity,
-                        get_array_status(&devinfo));
-                for (i = 0; i < devinfo.u.array.ndisk; i++) {
-                        if (hpt_id_valid(devinfo.u.array.members[i])) {
-                                if (cpu_to_le16(1<<i) &
-                                        devinfo.u.array.critical_members)
-                                        hptiop_copy_info(pinfo, "\t*");
-                                hptiop_dump_devinfo(hba, pinfo,
-                                        devinfo.u.array.members[i], indent+1);
-                        }
-                        else
-                                hptiop_copy_info(pinfo, "\tMissing\n");
-                }
-                if (id == devinfo.u.array.transform_source) {
-                        hptiop_copy_info(pinfo, "\tExpanding/Migrating to:\n");
-                        hptiop_dump_devinfo(hba, pinfo,
-                                devinfo.u.array.transform_target, indent+1);
-                }
-                break;
-        }
-}
-
 static ssize_t hptiop_show_version(struct class_device *class_dev, char *buf)
 {
         return snprintf(buf, PAGE_SIZE, "%s\n", driver_ver);
 }
 
-static ssize_t hptiop_cdev_read(struct file *filp, char __user *buf,
-                                size_t count, loff_t *ppos)
-{
-        struct hptiop_hba *hba = filp->private_data;
-        struct hptiop_getinfo info;
-        int i, j, ndev;
-        struct hpt_controller_info con_info;
-        struct hpt_channel_info chan_info;
-        __le32 ids[32];
-
-        info.buffer     = buf;
-        info.buflength  = count;
-        info.bufoffset  = ppos ? *ppos : 0;
-        info.filpos     = 0;
-        info.buffillen  = 0;
-
-        if (hptiop_get_controller_info(hba, &con_info))
-                return -EIO;
-
-        for (i = 0; i < con_info.num_buses; i++) {
-                if (hptiop_get_channel_info(hba, i, &chan_info) == 0) {
-                        if (hpt_id_valid(chan_info.devices[0]))
-                                hptiop_dump_devinfo(hba, &info,
-                                                chan_info.devices[0], 0);
-                        if (hpt_id_valid(chan_info.devices[1]))
-                                hptiop_dump_devinfo(hba, &info,
-                                                chan_info.devices[1], 0);
-                }
-        }
-
-        ndev = hptiop_get_logical_devices(hba, ids,
-                                        sizeof(ids) / sizeof(ids[0]));
-
-        /*
-         * if hptiop_get_logical_devices fails, ndev==-1 and it just
-         * output nothing here
-         */
-        for (j = 0; j < ndev; j++)
-                hptiop_dump_devinfo(hba, &info, ids[j], 0);
-
-        if (ppos)
-                *ppos += info.buffillen;
-
-        return info.buffillen;
-}
-
-static int hptiop_cdev_ioctl(struct inode *inode,  struct file *file,
-                                        unsigned int cmd, unsigned long arg)
-{
-        struct hptiop_hba *hba = file->private_data;
-        struct hpt_ioctl_u ioctl_u;
-        struct hpt_ioctl_k ioctl_k;
-        u32 bytes_returned;
-        int err = -EINVAL;
-
-        if (copy_from_user(&ioctl_u,
-                (void __user *)arg, sizeof(struct hpt_ioctl_u)))
-                return -EINVAL;
-
-        if (ioctl_u.magic != HPT_IOCTL_MAGIC)
-                return -EINVAL;
-
-        ioctl_k.ioctl_code = ioctl_u.ioctl_code;
-        ioctl_k.inbuf = NULL;
-        ioctl_k.inbuf_size = ioctl_u.inbuf_size;
-        ioctl_k.outbuf = NULL;
-        ioctl_k.outbuf_size = ioctl_u.outbuf_size;
-        ioctl_k.hba = hba;
-        ioctl_k.bytes_returned = &bytes_returned;
-
-        /* verify user buffer */
-        if ((ioctl_k.inbuf_size && !access_ok(VERIFY_READ,
-                        ioctl_u.inbuf, ioctl_k.inbuf_size)) ||
-                (ioctl_k.outbuf_size && !access_ok(VERIFY_WRITE,
-                        ioctl_u.outbuf, ioctl_k.outbuf_size)) ||
-                (ioctl_u.bytes_returned && !access_ok(VERIFY_WRITE,
-                        ioctl_u.bytes_returned, sizeof(u32))) ||
-                ioctl_k.inbuf_size + ioctl_k.outbuf_size > 0x10000) {
-
-                dprintk("scsi%d: got bad user address\n", hba->host->host_no);
-                return -EINVAL;
-        }
-
-        /* map buffer to kernel. */
-        if (ioctl_k.inbuf_size) {
-                ioctl_k.inbuf = kmalloc(ioctl_k.inbuf_size, GFP_KERNEL);
-                if (!ioctl_k.inbuf) {
-                        dprintk("scsi%d: fail to alloc inbuf\n",
-                                        hba->host->host_no);
-                        err = -ENOMEM;
-                        goto err_exit;
-                }
-
-                if (copy_from_user(ioctl_k.inbuf,
-                                ioctl_u.inbuf, ioctl_k.inbuf_size)) {
-                        goto err_exit;
-                }
-        }
-
-        if (ioctl_k.outbuf_size) {
-                ioctl_k.outbuf = kmalloc(ioctl_k.outbuf_size, GFP_KERNEL);
-                if (!ioctl_k.outbuf) {
-                        dprintk("scsi%d: fail to alloc outbuf\n",
-                                        hba->host->host_no);
-                        err = -ENOMEM;
-                        goto err_exit;
-                }
-        }
-
-        hptiop_do_ioctl(&ioctl_k);
-
-        if (ioctl_k.result == HPT_IOCTL_RESULT_OK) {
-                if (ioctl_k.outbuf_size &&
-                        copy_to_user(ioctl_u.outbuf,
-                                ioctl_k.outbuf, ioctl_k.outbuf_size))
-                        goto err_exit;
-
-                if (ioctl_u.bytes_returned &&
-                        copy_to_user(ioctl_u.bytes_returned,
-                                &bytes_returned, sizeof(u32)))
-                        goto err_exit;
-
-                err = 0;
-        }
-
-err_exit:
-        kfree(ioctl_k.inbuf);
-        kfree(ioctl_k.outbuf);
-
-        return err;
-}
-
-static int hptiop_cdev_open(struct inode *inode, struct file *file)
-{
-        struct hptiop_hba *hba;
-        unsigned i = 0, minor = iminor(inode);
-        int ret = -ENODEV;
-
-        spin_lock(&hptiop_hba_list_lock);
-        list_for_each_entry(hba, &hptiop_hba_list, link) {
-                if (i == minor) {
-                        file->private_data = hba;
-                        ret = 0;
-                        goto out;
-                }
-                i++;
-        }
-
-out:
-        spin_unlock(&hptiop_hba_list_lock);
-        return ret;
-}
-
-static struct file_operations hptiop_cdev_fops = {
-        .owner = THIS_MODULE,
-        .read  = hptiop_cdev_read,
-        .ioctl = hptiop_cdev_ioctl,
-        .open  = hptiop_cdev_open,
-};
-
 static ssize_t hptiop_show_fw_version(struct class_device *class_dev, char *buf)
 {
         struct Scsi_Host *host = class_to_shost(class_dev);
@@ -1296,19 +771,13 @@ static int __devinit hptiop_probe(struct pci_dev *pcidev,
                 goto unmap_pci_bar;
         }
 
-        if (scsi_add_host(host, &pcidev->dev)) {
-                printk(KERN_ERR "scsi%d: scsi_add_host failed\n",
-                                        hba->host->host_no);
-                goto unmap_pci_bar;
-        }
-
         pci_set_drvdata(pcidev, host);
 
         if (request_irq(pcidev->irq, hptiop_intr, IRQF_SHARED,
                                         driver_name, hba)) {
                 printk(KERN_ERR "scsi%d: request irq %d failed\n",
                                         hba->host->host_no, pcidev->irq);
-                goto remove_scsi_host;
+                goto unmap_pci_bar;
         }
 
         /* Allocate request mem */
@@ -1355,9 +824,12 @@ static int __devinit hptiop_probe(struct pci_dev *pcidev,
         if (hptiop_initialize_iop(hba))
                 goto free_request_mem;
 
-        spin_lock(&hptiop_hba_list_lock);
-        list_add_tail(&hba->link, &hptiop_hba_list);
-        spin_unlock(&hptiop_hba_list_lock);
+        if (scsi_add_host(host, &pcidev->dev)) {
+                printk(KERN_ERR "scsi%d: scsi_add_host failed\n",
+                                        hba->host->host_no);
+                goto free_request_mem;
+        }
+
 
         scsi_scan_host(host);
 
@@ -1372,9 +844,6 @@ free_request_mem:
 free_request_irq:
         free_irq(hba->pcidev->irq, hba);
 
-remove_scsi_host:
-        scsi_remove_host(host);
-
 unmap_pci_bar:
         iounmap(hba->iop);
 
@@ -1422,10 +891,6 @@ static void hptiop_remove(struct pci_dev *pcidev)
 
         scsi_remove_host(host);
 
-        spin_lock(&hptiop_hba_list_lock);
-        list_del_init(&hba->link);
-        spin_unlock(&hptiop_hba_list_lock);
-
         hptiop_shutdown(pcidev);
 
         free_irq(hba->pcidev->irq, hba);
@@ -1462,27 +927,12 @@ static struct pci_driver hptiop_pci_driver = {
 
 static int __init hptiop_module_init(void)
 {
-        int error;
-
         printk(KERN_INFO "%s %s\n", driver_name_long, driver_ver);
-
-        error = pci_register_driver(&hptiop_pci_driver);
-        if (error < 0)
-                return error;
-
-        hptiop_cdev_major = register_chrdev(0, "hptiop", &hptiop_cdev_fops);
-        if (hptiop_cdev_major < 0) {
-                printk(KERN_WARNING "unable to register hptiop device.\n");
-                return hptiop_cdev_major;
-        }
-
-        return 0;
+        return pci_register_driver(&hptiop_pci_driver);
 }
 
 static void __exit hptiop_module_exit(void)
 {
-        dprintk("hptiop_module_exit\n");
-        unregister_chrdev(hptiop_cdev_major, "hptiop");
         pci_unregister_driver(&hptiop_pci_driver);
 }
 
diff --git a/drivers/scsi/ide-scsi.c b/drivers/scsi/ide-scsi.c
index f7b5d7372d26..94d1de55607f 100644
--- a/drivers/scsi/ide-scsi.c
+++ b/drivers/scsi/ide-scsi.c
@@ -517,7 +517,7 @@ static ide_startstop_t idescsi_pc_intr (ide_drive_t *drive)
                 /* No more interrupts */
                 if (test_bit(IDESCSI_LOG_CMD, &scsi->log))
                         printk (KERN_INFO "Packet command completed, %d bytes transferred\n", pc->actually_transferred);
-                local_irq_enable();
+                local_irq_enable_in_hardirq();
                 if (status.b.check)
                         rq->errors++;
                 idescsi_end_request (drive, 1, 0);
diff --git a/drivers/scsi/iscsi_tcp.c b/drivers/scsi/iscsi_tcp.c
index 848fb2aa4ca3..058f094f945a 100644
--- a/drivers/scsi/iscsi_tcp.c
+++ b/drivers/scsi/iscsi_tcp.c
@@ -43,13 +43,10 @@
 
 #include "iscsi_tcp.h"
 
-#define ISCSI_TCP_VERSION "1.0-595"
-
 MODULE_AUTHOR("Dmitry Yusupov <dmitry_yus@yahoo.com>, "
               "Alex Aizman <itn780@yahoo.com>");
 MODULE_DESCRIPTION("iSCSI/TCP data-path");
 MODULE_LICENSE("GPL");
-MODULE_VERSION(ISCSI_TCP_VERSION);
 /* #define DEBUG_TCP */
 #define DEBUG_ASSERT
 
@@ -185,11 +182,19 @@ iscsi_hdr_extract(struct iscsi_tcp_conn *tcp_conn)
  * must be called with session lock
  */
 static void
-__iscsi_ctask_cleanup(struct iscsi_conn *conn, struct iscsi_cmd_task *ctask)
+iscsi_tcp_cleanup_ctask(struct iscsi_conn *conn, struct iscsi_cmd_task *ctask)
 {
         struct iscsi_tcp_cmd_task *tcp_ctask = ctask->dd_data;
+        struct iscsi_r2t_info *r2t;
         struct scsi_cmnd *sc;
 
+        /* flush ctask's r2t queues */
+        while (__kfifo_get(tcp_ctask->r2tqueue, (void*)&r2t, sizeof(void*))) {
+                __kfifo_put(tcp_ctask->r2tpool.queue, (void*)&r2t,
+                            sizeof(void*));
+                debug_scsi("iscsi_tcp_cleanup_ctask pending r2t dropped\n");
+        }
+
         sc = ctask->sc;
         if (unlikely(!sc))
                 return;
@@ -374,6 +379,7 @@ iscsi_r2t_rsp(struct iscsi_conn *conn, struct iscsi_cmd_task *ctask)
                 spin_unlock(&session->lock);
                 return 0;
         }
+
         rc = __kfifo_get(tcp_ctask->r2tpool.queue, (void*)&r2t, sizeof(void*));
         BUG_ON(!rc);
 
@@ -399,7 +405,7 @@ iscsi_r2t_rsp(struct iscsi_conn *conn, struct iscsi_cmd_task *ctask)
         tcp_ctask->exp_r2tsn = r2tsn + 1;
         tcp_ctask->xmstate |= XMSTATE_SOL_HDR;
         __kfifo_put(tcp_ctask->r2tqueue, (void*)&r2t, sizeof(void*));
-        __kfifo_put(conn->xmitqueue, (void*)&ctask, sizeof(void*));
+        list_move_tail(&ctask->running, &conn->xmitqueue);
 
         scsi_queue_work(session->host, &conn->xmitwork);
         conn->r2t_pdus_cnt++;
@@ -477,6 +483,8 @@ iscsi_tcp_hdr_recv(struct iscsi_conn *conn)
         case ISCSI_OP_SCSI_DATA_IN:
                 tcp_conn->in.ctask = session->cmds[itt];
                 rc = iscsi_data_rsp(conn, tcp_conn->in.ctask);
+                if (rc)
+                        return rc;
                 /* fall through */
         case ISCSI_OP_SCSI_CMD_RSP:
                 tcp_conn->in.ctask = session->cmds[itt];
@@ -484,7 +492,7 @@ iscsi_tcp_hdr_recv(struct iscsi_conn *conn)
                         goto copy_hdr;
 
                 spin_lock(&session->lock);
-                __iscsi_ctask_cleanup(conn, tcp_conn->in.ctask);
+                iscsi_tcp_cleanup_ctask(conn, tcp_conn->in.ctask);
                 rc = __iscsi_complete_pdu(conn, hdr, NULL, 0);
                 spin_unlock(&session->lock);
                 break;
@@ -500,13 +508,28 @@ iscsi_tcp_hdr_recv(struct iscsi_conn *conn)
                 break;
         case ISCSI_OP_LOGIN_RSP:
         case ISCSI_OP_TEXT_RSP:
-        case ISCSI_OP_LOGOUT_RSP:
-        case ISCSI_OP_NOOP_IN:
         case ISCSI_OP_REJECT:
         case ISCSI_OP_ASYNC_EVENT:
+                /*
+                 * It is possible that we could get a PDU with a buffer larger
+                 * than 8K, but there are no targets that currently do this.
+                 * For now we fail until we find a vendor that needs it
+                 */
+                if (DEFAULT_MAX_RECV_DATA_SEGMENT_LENGTH <
+                    tcp_conn->in.datalen) {
+                        printk(KERN_ERR "iscsi_tcp: received buffer of len %u "
+                              "but conn buffer is only %u (opcode %0x)\n",
+                              tcp_conn->in.datalen,
+                              DEFAULT_MAX_RECV_DATA_SEGMENT_LENGTH, opcode);
+                        rc = ISCSI_ERR_PROTO;
+                        break;
+                }
+
                 if (tcp_conn->in.datalen)
                         goto copy_hdr;
         /* fall through */
+        case ISCSI_OP_LOGOUT_RSP:
+        case ISCSI_OP_NOOP_IN:
         case ISCSI_OP_SCSI_TMFUNC_RSP:
                 rc = iscsi_complete_pdu(conn, hdr, NULL, 0);
                 break;
@@ -523,7 +546,7 @@ copy_hdr:
          * skbs to complete the command then we have to copy the header
          * for later use
          */
-        if (tcp_conn->in.zero_copy_hdr && tcp_conn->in.copy <
+        if (tcp_conn->in.zero_copy_hdr && tcp_conn->in.copy <=
            (tcp_conn->in.datalen + tcp_conn->in.padding +
             (conn->datadgst_en ? 4 : 0))) {
                 debug_tcp("Copying header for later use. in.copy %d in.datalen"
@@ -614,9 +637,9 @@ iscsi_ctask_copy(struct iscsi_tcp_conn *tcp_conn, struct iscsi_cmd_task *ctask,
  *      byte counters.
  **/
 static inline int
-iscsi_tcp_copy(struct iscsi_tcp_conn *tcp_conn)
+iscsi_tcp_copy(struct iscsi_conn *conn)
 {
-        void *buf = tcp_conn->data;
+        struct iscsi_tcp_conn *tcp_conn = conn->dd_data;
         int buf_size = tcp_conn->in.datalen;
         int buf_left = buf_size - tcp_conn->data_copied;
         int size = min(tcp_conn->in.copy, buf_left);
@@ -627,7 +650,7 @@ iscsi_tcp_copy(struct iscsi_tcp_conn *tcp_conn)
         BUG_ON(size <= 0);
 
         rc = skb_copy_bits(tcp_conn->in.skb, tcp_conn->in.offset,
-                           (char*)buf + tcp_conn->data_copied, size);
+                           (char*)conn->data + tcp_conn->data_copied, size);
         BUG_ON(rc);
 
         tcp_conn->in.offset += size;
@@ -745,10 +768,11 @@ static int iscsi_scsi_data_in(struct iscsi_conn *conn)
 done:
         /* check for non-exceptional status */
         if (tcp_conn->in.hdr->flags & ISCSI_FLAG_DATA_STATUS) {
-                debug_scsi("done [sc %lx res %d itt 0x%x]\n",
-                           (long)sc, sc->result, ctask->itt);
+                debug_scsi("done [sc %lx res %d itt 0x%x flags 0x%x]\n",
+                           (long)sc, sc->result, ctask->itt,
+                           tcp_conn->in.hdr->flags);
                 spin_lock(&conn->session->lock);
-                __iscsi_ctask_cleanup(conn, ctask);
+                iscsi_tcp_cleanup_ctask(conn, ctask);
                 __iscsi_complete_pdu(conn, tcp_conn->in.hdr, NULL, 0);
                 spin_unlock(&conn->session->lock);
         }
@@ -769,26 +793,25 @@ iscsi_data_recv(struct iscsi_conn *conn)
                 break;
         case ISCSI_OP_SCSI_CMD_RSP:
                 spin_lock(&conn->session->lock);
-                __iscsi_ctask_cleanup(conn, tcp_conn->in.ctask);
+                iscsi_tcp_cleanup_ctask(conn, tcp_conn->in.ctask);
                 spin_unlock(&conn->session->lock);
         case ISCSI_OP_TEXT_RSP:
         case ISCSI_OP_LOGIN_RSP:
-        case ISCSI_OP_NOOP_IN:
         case ISCSI_OP_ASYNC_EVENT:
         case ISCSI_OP_REJECT:
                 /*
                  * Collect data segment to the connection's data
                  * placeholder
                  */
-                if (iscsi_tcp_copy(tcp_conn)) {
+                if (iscsi_tcp_copy(conn)) {
                         rc = -EAGAIN;
                         goto exit;
                 }
 
-                rc = iscsi_complete_pdu(conn, tcp_conn->in.hdr, tcp_conn->data,
+                rc = iscsi_complete_pdu(conn, tcp_conn->in.hdr, conn->data,
                                         tcp_conn->in.datalen);
                 if (!rc && conn->datadgst_en && opcode != ISCSI_OP_LOGIN_RSP)
-                        iscsi_recv_digest_update(tcp_conn, tcp_conn->data,
+                        iscsi_recv_digest_update(tcp_conn, conn->data,
                                                 tcp_conn->in.datalen);
                 break;
         default:
@@ -843,7 +866,7 @@ more:
                        if (rc == -EAGAIN)
                                 goto nomore;
                        else {
-                                iscsi_conn_failure(conn, rc);
+                                iscsi_conn_failure(conn, ISCSI_ERR_CONN_FAILED);
                                 return 0;
                        }
                 }
@@ -897,7 +920,7 @@ more:
                 if (rc) {
                         if (rc == -EAGAIN)
                                 goto again;
-                        iscsi_conn_failure(conn, rc);
+                        iscsi_conn_failure(conn, ISCSI_ERR_CONN_FAILED);
                         return 0;
                 }
                 tcp_conn->in.copy -= tcp_conn->in.padding;
@@ -1028,9 +1051,8 @@ iscsi_conn_set_callbacks(struct iscsi_conn *conn)
 }
 
 static void
-iscsi_conn_restore_callbacks(struct iscsi_conn *conn)
+iscsi_conn_restore_callbacks(struct iscsi_tcp_conn *tcp_conn)
 {
-        struct iscsi_tcp_conn *tcp_conn = conn->dd_data;
         struct sock *sk = tcp_conn->sock->sk;
 
         /* restore socket callbacks, see also: iscsi_conn_set_callbacks() */
@@ -1308,7 +1330,7 @@ iscsi_tcp_cmd_init(struct iscsi_cmd_task *ctask)
                                     ctask->imm_count -
                                     ctask->unsol_count;
 
-                debug_scsi("cmd [itt %x total %d imm %d imm_data %d "
+                debug_scsi("cmd [itt 0x%x total %d imm %d imm_data %d "
                            "r2t_data %d]\n",
                            ctask->itt, ctask->total_length, ctask->imm_count,
                            ctask->unsol_count, tcp_ctask->r2t_data_count);
@@ -1636,7 +1658,7 @@ handle_xmstate_sol_data(struct iscsi_conn *conn, struct iscsi_cmd_task *ctask)
         }
 solicit_again:
         /*
-         * send Data-Out whitnin this R2T sequence.
+         * send Data-Out within this R2T sequence.
          */
         if (!r2t->data_count)
                 goto data_out_done;
@@ -1731,7 +1753,7 @@ handle_xmstate_w_pad(struct iscsi_conn *conn, struct iscsi_cmd_task *ctask)
         struct iscsi_tcp_cmd_task *tcp_ctask = ctask->dd_data;
         struct iscsi_tcp_conn *tcp_conn = conn->dd_data;
         struct iscsi_data_task *dtask = tcp_ctask->dtask;
-        int sent, rc;
+        int sent = 0, rc;
 
         tcp_ctask->xmstate &= ~XMSTATE_W_PAD;
         iscsi_buf_init_iov(&tcp_ctask->sendbuf, (char*)&tcp_ctask->pad,
@@ -1900,27 +1922,32 @@ iscsi_tcp_conn_create(struct iscsi_cls_session *cls_session, uint32_t conn_idx)
         tcp_conn->in_progress = IN_PROGRESS_WAIT_HEADER;
         /* initial operational parameters */
         tcp_conn->hdr_size = sizeof(struct iscsi_hdr);
-        tcp_conn->data_size = DEFAULT_MAX_RECV_DATA_SEGMENT_LENGTH;
-
-        /* allocate initial PDU receive place holder */
-        if (tcp_conn->data_size <= PAGE_SIZE)
-                tcp_conn->data = kmalloc(tcp_conn->data_size, GFP_KERNEL);
-        else
-                tcp_conn->data = (void*)__get_free_pages(GFP_KERNEL,
-                                        get_order(tcp_conn->data_size));
-        if (!tcp_conn->data)
-                goto max_recv_dlenght_alloc_fail;
 
         return cls_conn;
 
-max_recv_dlenght_alloc_fail:
-        kfree(tcp_conn);
 tcp_conn_alloc_fail:
         iscsi_conn_teardown(cls_conn);
         return NULL;
 }
 
 static void
+iscsi_tcp_release_conn(struct iscsi_conn *conn)
+{
+        struct iscsi_tcp_conn *tcp_conn = conn->dd_data;
+
+        if (!tcp_conn->sock)
+                return;
+
+        sock_hold(tcp_conn->sock->sk);
+        iscsi_conn_restore_callbacks(tcp_conn);
+        sock_put(tcp_conn->sock->sk);
+
+        sock_release(tcp_conn->sock);
+        tcp_conn->sock = NULL;
+        conn->recv_lock = NULL;
+}
+
+static void
 iscsi_tcp_conn_destroy(struct iscsi_cls_conn *cls_conn)
 {
         struct iscsi_conn *conn = cls_conn->dd_data;
@@ -1930,6 +1957,7 @@ iscsi_tcp_conn_destroy(struct iscsi_cls_conn *cls_conn)
         if (conn->hdrdgst_en || conn->datadgst_en)
                 digest = 1;
 
+        iscsi_tcp_release_conn(conn);
         iscsi_conn_teardown(cls_conn);
 
         /* now free tcp_conn */
@@ -1944,15 +1972,18 @@ iscsi_tcp_conn_destroy(struct iscsi_cls_conn *cls_conn)
                         crypto_free_tfm(tcp_conn->data_rx_tfm);
         }
 
-        /* free conn->data, size = MaxRecvDataSegmentLength */
-        if (tcp_conn->data_size <= PAGE_SIZE)
-                kfree(tcp_conn->data);
-        else
-                free_pages((unsigned long)tcp_conn->data,
-                           get_order(tcp_conn->data_size));
         kfree(tcp_conn);
 }
 
+static void
+iscsi_tcp_conn_stop(struct iscsi_cls_conn *cls_conn, int flag)
+{
+        struct iscsi_conn *conn = cls_conn->dd_data;
+
+        iscsi_conn_stop(cls_conn, flag);
+        iscsi_tcp_release_conn(conn);
+}
+
 static int
 iscsi_tcp_conn_bind(struct iscsi_cls_session *cls_session,
                     struct iscsi_cls_conn *cls_conn, uint64_t transport_eph,
@@ -2001,52 +2032,6 @@ iscsi_tcp_conn_bind(struct iscsi_cls_session *cls_session,
         return 0;
 }
 
-static void
-iscsi_tcp_cleanup_ctask(struct iscsi_conn *conn, struct iscsi_cmd_task *ctask)
-{
-        struct iscsi_tcp_cmd_task *tcp_ctask = ctask->dd_data;
-        struct iscsi_r2t_info *r2t;
-
-        /* flush ctask's r2t queues */
-        while (__kfifo_get(tcp_ctask->r2tqueue, (void*)&r2t, sizeof(void*)))
-                __kfifo_put(tcp_ctask->r2tpool.queue, (void*)&r2t,
-                            sizeof(void*));
-
-        __iscsi_ctask_cleanup(conn, ctask);
-}
-
-static void
-iscsi_tcp_suspend_conn_rx(struct iscsi_conn *conn)
-{
-        struct iscsi_tcp_conn *tcp_conn = conn->dd_data;
-        struct sock *sk;
-
-        if (!tcp_conn->sock)
-                return;
-
-        sk = tcp_conn->sock->sk;
-        write_lock_bh(&sk->sk_callback_lock);
-        set_bit(ISCSI_SUSPEND_BIT, &conn->suspend_rx);
-        write_unlock_bh(&sk->sk_callback_lock);
-}
-
-static void
-iscsi_tcp_terminate_conn(struct iscsi_conn *conn)
-{
-        struct iscsi_tcp_conn *tcp_conn = conn->dd_data;
-
-        if (!tcp_conn->sock)
-                return;
-
-        sock_hold(tcp_conn->sock->sk);
-        iscsi_conn_restore_callbacks(conn);
-        sock_put(tcp_conn->sock->sk);
-
-        sock_release(tcp_conn->sock);
-        tcp_conn->sock = NULL;
-        conn->recv_lock = NULL;
-}
-
 /* called with host lock */
 static void
 iscsi_tcp_mgmt_init(struct iscsi_conn *conn, struct iscsi_mgmt_task *mtask,
@@ -2057,6 +2042,7 @@ iscsi_tcp_mgmt_init(struct iscsi_conn *conn, struct iscsi_mgmt_task *mtask,
         iscsi_buf_init_iov(&tcp_mtask->headbuf, (char*)mtask->hdr,
                            sizeof(struct iscsi_hdr));
         tcp_mtask->xmstate = XMSTATE_IMM_HDR;
+        tcp_mtask->sent = 0;
 
         if (mtask->data_count)
                 iscsi_buf_init_iov(&tcp_mtask->sendbuf, (char*)mtask->data,
@@ -2138,39 +2124,6 @@ iscsi_conn_set_param(struct iscsi_cls_conn *cls_conn, enum iscsi_param param,
         int value;
 
         switch(param) {
-        case ISCSI_PARAM_MAX_RECV_DLENGTH: {
-                char *saveptr = tcp_conn->data;
-                gfp_t flags = GFP_KERNEL;
-
-                sscanf(buf, "%d", &value);
-                if (tcp_conn->data_size >= value) {
-                        iscsi_set_param(cls_conn, param, buf, buflen);
-                        break;
-                }
-
-                spin_lock_bh(&session->lock);
-                if (conn->stop_stage == STOP_CONN_RECOVER)
-                        flags = GFP_ATOMIC;
-                spin_unlock_bh(&session->lock);
-
-                if (value <= PAGE_SIZE)
-                        tcp_conn->data = kmalloc(value, flags);
-                else
-                        tcp_conn->data = (void*)__get_free_pages(flags,
-                                                             get_order(value));
-                if (tcp_conn->data == NULL) {
-                        tcp_conn->data = saveptr;
-                        return -ENOMEM;
-                }
-                if (tcp_conn->data_size <= PAGE_SIZE)
-                        kfree(saveptr);
-                else
-                        free_pages((unsigned long)saveptr,
-                                   get_order(tcp_conn->data_size));
-                iscsi_set_param(cls_conn, param, buf, buflen);
-                tcp_conn->data_size = value;
-                break;
-                }
         case ISCSI_PARAM_HDRDGST_EN:
                 iscsi_set_param(cls_conn, param, buf, buflen);
                 tcp_conn->hdr_size = sizeof(struct iscsi_hdr);
@@ -2361,8 +2314,7 @@ static void iscsi_tcp_session_destroy(struct iscsi_cls_session *cls_session)
 }
 
 static struct scsi_host_template iscsi_sht = {
-        .name                   = "iSCSI Initiator over TCP/IP, v"
-                                  ISCSI_TCP_VERSION,
+        .name                   = "iSCSI Initiator over TCP/IP",
         .queuecommand           = iscsi_queuecommand,
         .change_queue_depth     = iscsi_change_queue_depth,
         .can_queue              = ISCSI_XMIT_CMDS_MAX - 1,
@@ -2414,10 +2366,7 @@ static struct iscsi_transport iscsi_tcp_transport = {
         .get_conn_param         = iscsi_tcp_conn_get_param,
         .get_session_param      = iscsi_session_get_param,
         .start_conn             = iscsi_conn_start,
-        .stop_conn              = iscsi_conn_stop,
-        /* these are called as part of conn recovery */
-        .suspend_conn_recv      = iscsi_tcp_suspend_conn_rx,
-        .terminate_conn         = iscsi_tcp_terminate_conn,
+        .stop_conn              = iscsi_tcp_conn_stop,
         /* IO */
         .send_pdu               = iscsi_conn_send_pdu,
         .get_stats              = iscsi_conn_get_stats,
diff --git a/drivers/scsi/iscsi_tcp.h b/drivers/scsi/iscsi_tcp.h
index 808302832e68..6a4ee704e46e 100644
--- a/drivers/scsi/iscsi_tcp.h
+++ b/drivers/scsi/iscsi_tcp.h
@@ -78,8 +78,6 @@ struct iscsi_tcp_conn {
         char                    hdrext[4*sizeof(__u16) +
                                     sizeof(__u32)];
         int                     data_copied;
-        char                    *data;          /* data placeholder */
-        int                     data_size;      /* actual recv_dlength */
         int                     stop_stage;     /* conn_stop() flag: *
                                                  * stop to recover,  *
                                                  * stop to terminate */
diff --git a/drivers/scsi/libata-core.c b/drivers/scsi/libata-core.c
index 16fc2dd8f2f7..73dd6c8deede 100644
--- a/drivers/scsi/libata-core.c
+++ b/drivers/scsi/libata-core.c
@@ -2746,7 +2746,7 @@ int sata_std_hardreset(struct ata_port *ap, unsigned int *class)
                 if ((rc = sata_scr_read(ap, SCR_CONTROL, &scontrol)))
                         return rc;
 
-                scontrol = (scontrol & 0x0f0) | 0x302;
+                scontrol = (scontrol & 0x0f0) | 0x304;
 
                 if ((rc = sata_scr_write(ap, SCR_CONTROL, scontrol)))
                         return rc;
diff --git a/drivers/scsi/libiscsi.c b/drivers/scsi/libiscsi.c
index 7e6e031cc41b..5884cd26d53a 100644
--- a/drivers/scsi/libiscsi.c
+++ b/drivers/scsi/libiscsi.c
@@ -189,6 +189,7 @@ static void iscsi_complete_command(struct iscsi_session *session,
 {
         struct scsi_cmnd *sc = ctask->sc;
 
+        ctask->state = ISCSI_TASK_COMPLETED;
         ctask->sc = NULL;
         list_del_init(&ctask->running);
         __kfifo_put(session->cmdpool.queue, (void*)&ctask, sizeof(void*));
@@ -275,6 +276,25 @@ out:
         return rc;
 }
 
+static void iscsi_tmf_rsp(struct iscsi_conn *conn, struct iscsi_hdr *hdr)
+{
+        struct iscsi_tm_rsp *tmf = (struct iscsi_tm_rsp *)hdr;
+
+        conn->exp_statsn = be32_to_cpu(hdr->statsn) + 1;
+        conn->tmfrsp_pdus_cnt++;
+
+        if (conn->tmabort_state != TMABORT_INITIAL)
+                return;
+
+        if (tmf->response == ISCSI_TMF_RSP_COMPLETE)
+                conn->tmabort_state = TMABORT_SUCCESS;
+        else if (tmf->response == ISCSI_TMF_RSP_NO_TASK)
+                conn->tmabort_state = TMABORT_NOT_FOUND;
+        else
+                conn->tmabort_state = TMABORT_FAILED;
+        wake_up(&conn->ehwait);
+}
+
 /**
  * __iscsi_complete_pdu - complete pdu
  * @conn: iscsi conn
@@ -340,6 +360,10 @@ int __iscsi_complete_pdu(struct iscsi_conn *conn, struct iscsi_hdr *hdr,
 
                 switch(opcode) {
                 case ISCSI_OP_LOGOUT_RSP:
+                        if (datalen) {
+                                rc = ISCSI_ERR_PROTO;
+                                break;
+                        }
                         conn->exp_statsn = be32_to_cpu(hdr->statsn) + 1;
                         /* fall through */
                 case ISCSI_OP_LOGIN_RSP:
@@ -348,7 +372,8 @@ int __iscsi_complete_pdu(struct iscsi_conn *conn, struct iscsi_hdr *hdr,
                          * login related PDU's exp_statsn is handled in
                          * userspace
                          */
-                        rc = iscsi_recv_pdu(conn->cls_conn, hdr, data, datalen);
+                        if (iscsi_recv_pdu(conn->cls_conn, hdr, data, datalen))
+                                rc = ISCSI_ERR_CONN_FAILED;
                         list_del(&mtask->running);
                         if (conn->login_mtask != mtask)
                                 __kfifo_put(session->mgmtpool.queue,
@@ -360,25 +385,17 @@ int __iscsi_complete_pdu(struct iscsi_conn *conn, struct iscsi_hdr *hdr,
                                 break;
                         }
 
-                        conn->exp_statsn = be32_to_cpu(hdr->statsn) + 1;
-                        conn->tmfrsp_pdus_cnt++;
-                        if (conn->tmabort_state == TMABORT_INITIAL) {
-                                conn->tmabort_state =
-                                        ((struct iscsi_tm_rsp *)hdr)->
-                                        response == ISCSI_TMF_RSP_COMPLETE ?
-                                                TMABORT_SUCCESS:TMABORT_FAILED;
-                                /* unblock eh_abort() */
-                                wake_up(&conn->ehwait);
-                        }
+                        iscsi_tmf_rsp(conn, hdr);
                         break;
                 case ISCSI_OP_NOOP_IN:
-                        if (hdr->ttt != ISCSI_RESERVED_TAG) {
+                        if (hdr->ttt != ISCSI_RESERVED_TAG || datalen) {
                                 rc = ISCSI_ERR_PROTO;
                                 break;
                         }
                         conn->exp_statsn = be32_to_cpu(hdr->statsn) + 1;
 
-                        rc = iscsi_recv_pdu(conn->cls_conn, hdr, data, datalen);
+                        if (iscsi_recv_pdu(conn->cls_conn, hdr, data, datalen))
+                                rc = ISCSI_ERR_CONN_FAILED;
                         list_del(&mtask->running);
                         if (conn->login_mtask != mtask)
                                 __kfifo_put(session->mgmtpool.queue,
@@ -391,14 +408,21 @@ int __iscsi_complete_pdu(struct iscsi_conn *conn, struct iscsi_hdr *hdr,
         } else if (itt == ISCSI_RESERVED_TAG) {
                 switch(opcode) {
                 case ISCSI_OP_NOOP_IN:
-                        if (!datalen) {
-                                rc = iscsi_check_assign_cmdsn(session,
-                                                 (struct iscsi_nopin*)hdr);
-                                if (!rc && hdr->ttt != ISCSI_RESERVED_TAG)
-                                        rc = iscsi_recv_pdu(conn->cls_conn,
-                                                            hdr, NULL, 0);
-                        } else
+                        if (datalen) {
                                 rc = ISCSI_ERR_PROTO;
+                                break;
+                        }
+
+                        rc = iscsi_check_assign_cmdsn(session,
+                                                 (struct iscsi_nopin*)hdr);
+                        if (rc)
+                                break;
+
+                        if (hdr->ttt == ISCSI_RESERVED_TAG)
+                                break;
+
+                        if (iscsi_recv_pdu(conn->cls_conn, hdr, NULL, 0))
+                                rc = ISCSI_ERR_CONN_FAILED;
                         break;
                 case ISCSI_OP_REJECT:
                         /* we need sth like iscsi_reject_rsp()*/
@@ -568,20 +592,24 @@ static int iscsi_data_xmit(struct iscsi_conn *conn)
         }
 
         /* process command queue */
-        while (__kfifo_get(conn->xmitqueue, (void*)&conn->ctask,
-                           sizeof(void*))) {
+        spin_lock_bh(&conn->session->lock);
+        while (!list_empty(&conn->xmitqueue)) {
                 /*
                  * iscsi tcp may readd the task to the xmitqueue to send
                  * write data
                  */
-                spin_lock_bh(&conn->session->lock);
-                if (list_empty(&conn->ctask->running))
-                        list_add_tail(&conn->ctask->running, &conn->run_list);
+                conn->ctask = list_entry(conn->xmitqueue.next,
+                                         struct iscsi_cmd_task, running);
+                conn->ctask->state = ISCSI_TASK_RUNNING;
+                list_move_tail(conn->xmitqueue.next, &conn->run_list);
                 spin_unlock_bh(&conn->session->lock);
+
                 rc = tt->xmit_cmd_task(conn, conn->ctask);
                 if (rc)
                         goto again;
+                spin_lock_bh(&conn->session->lock);
         }
+        spin_unlock_bh(&conn->session->lock);
         /* done with this ctask */
         conn->ctask = NULL;
 
@@ -691,6 +719,7 @@ int iscsi_queuecommand(struct scsi_cmnd *sc, void (*done)(struct scsi_cmnd *))
         sc->SCp.phase = session->age;
         sc->SCp.ptr = (char *)ctask;
 
+        ctask->state = ISCSI_TASK_PENDING;
         ctask->mtask = NULL;
         ctask->conn = conn;
         ctask->sc = sc;
@@ -700,7 +729,7 @@ int iscsi_queuecommand(struct scsi_cmnd *sc, void (*done)(struct scsi_cmnd *))
 
         session->tt->init_cmd_task(ctask);
 
-        __kfifo_put(conn->xmitqueue, (void*)&ctask, sizeof(void*));
+        list_add_tail(&ctask->running, &conn->xmitqueue);
         debug_scsi(
                "ctask enq [%s cid %d sc %lx itt 0x%x len %d cmdsn %d win %d]\n",
                 sc->sc_data_direction == DMA_TO_DEVICE ? "write" : "read",
@@ -977,31 +1006,27 @@ static int iscsi_exec_abort_task(struct scsi_cmnd *sc,
 /*
  * xmit mutex and session lock must be held
  */
-#define iscsi_remove_task(tasktype)                                     \
-static struct iscsi_##tasktype *                                        \
-iscsi_remove_##tasktype(struct kfifo *fifo, uint32_t itt)               \
-{                                                                       \
-        int i, nr_tasks = __kfifo_len(fifo) / sizeof(void*);            \
-        struct iscsi_##tasktype *task;                                  \
-                                                                        \
-        debug_scsi("searching %d tasks\n", nr_tasks);                   \
-                                                                        \
-        for (i = 0; i < nr_tasks; i++) {                                \
-                __kfifo_get(fifo, (void*)&task, sizeof(void*));         \
-                debug_scsi("check task %u\n", task->itt);               \
-                                                                        \
-                if (task->itt == itt) {                                 \
-                        debug_scsi("matched task\n");                   \
-                        return task;                                    \
-                }                                                       \
-                                                                        \
-                __kfifo_put(fifo, (void*)&task, sizeof(void*));         \
-        }                                                               \
-        return NULL;                                                    \
-}
+static struct iscsi_mgmt_task *
+iscsi_remove_mgmt_task(struct kfifo *fifo, uint32_t itt)
+{
+        int i, nr_tasks = __kfifo_len(fifo) / sizeof(void*);
+        struct iscsi_mgmt_task *task;
 
-iscsi_remove_task(mgmt_task);
-iscsi_remove_task(cmd_task);
+        debug_scsi("searching %d tasks\n", nr_tasks);
+
+        for (i = 0; i < nr_tasks; i++) {
+                __kfifo_get(fifo, (void*)&task, sizeof(void*));
+                debug_scsi("check task %u\n", task->itt);
+
+                if (task->itt == itt) {
+                        debug_scsi("matched task\n");
+                        return task;
+                }
+
+                __kfifo_put(fifo, (void*)&task, sizeof(void*));
+        }
+        return NULL;
+}
 
 static int iscsi_ctask_mtask_cleanup(struct iscsi_cmd_task *ctask)
 {
@@ -1027,12 +1052,13 @@ static void fail_command(struct iscsi_conn *conn, struct iscsi_cmd_task *ctask,
 {
         struct scsi_cmnd *sc;
 
-        conn->session->tt->cleanup_cmd_task(conn, ctask);
-        iscsi_ctask_mtask_cleanup(ctask);
-
         sc = ctask->sc;
         if (!sc)
                 return;
+
+        conn->session->tt->cleanup_cmd_task(conn, ctask);
+        iscsi_ctask_mtask_cleanup(ctask);
+
         sc->result = err;
         sc->resid = sc->request_bufflen;
         iscsi_complete_command(conn->session, ctask);
@@ -1043,7 +1069,6 @@ int iscsi_eh_abort(struct scsi_cmnd *sc)
         struct iscsi_cmd_task *ctask = (struct iscsi_cmd_task *)sc->SCp.ptr;
         struct iscsi_conn *conn = ctask->conn;
         struct iscsi_session *session = conn->session;
-        struct iscsi_cmd_task *pending_ctask;
         int rc;
 
         conn->eh_abort_cnt++;
@@ -1061,8 +1086,11 @@ int iscsi_eh_abort(struct scsi_cmnd *sc)
                 goto failed;
 
         /* ctask completed before time out */
-        if (!ctask->sc)
-                goto success;
+        if (!ctask->sc) {
+                spin_unlock_bh(&session->lock);
+                debug_scsi("sc completed while abort in progress\n");
+                goto success_rel_mutex;
+        }
 
         /* what should we do here ? */
         if (conn->ctask == ctask) {
@@ -1071,17 +1099,8 @@ int iscsi_eh_abort(struct scsi_cmnd *sc)
                 goto failed;
         }
 
-        /* check for the easy pending cmd abort */
-        pending_ctask = iscsi_remove_cmd_task(conn->xmitqueue, ctask->itt);
-        if (pending_ctask) {
-                /* iscsi_tcp queues write transfers on the xmitqueue */
-                if (list_empty(&pending_ctask->running)) {
-                        debug_scsi("found pending task\n");
-                        goto success;
-                } else
-                        __kfifo_put(conn->xmitqueue, (void*)&pending_ctask,
-                                    sizeof(void*));
-        }
+        if (ctask->state == ISCSI_TASK_PENDING)
+                goto success_cleanup;
 
         conn->tmabort_state = TMABORT_INITIAL;
 
@@ -1089,25 +1108,31 @@ int iscsi_eh_abort(struct scsi_cmnd *sc)
         rc = iscsi_exec_abort_task(sc, ctask);
         spin_lock_bh(&session->lock);
 
-        iscsi_ctask_mtask_cleanup(ctask);
         if (rc || sc->SCp.phase != session->age ||
             session->state != ISCSI_STATE_LOGGED_IN)
                 goto failed;
+        iscsi_ctask_mtask_cleanup(ctask);
 
-        /* ctask completed before tmf abort response */
-        if (!ctask->sc) {
-                debug_scsi("sc completed while abort in progress\n");
-                goto success;
-        }
-
-        if (conn->tmabort_state != TMABORT_SUCCESS) {
+        switch (conn->tmabort_state) {
+        case TMABORT_SUCCESS:
+                goto success_cleanup;
+        case TMABORT_NOT_FOUND:
+                if (!ctask->sc) {
+                        /* ctask completed before tmf abort response */
+                        spin_unlock_bh(&session->lock);
+                        debug_scsi("sc completed while abort in progress\n");
+                        goto success_rel_mutex;
+                }
+                /* fall through */
+        default:
+                /* timedout or failed */
                 spin_unlock_bh(&session->lock);
                 iscsi_conn_failure(conn, ISCSI_ERR_CONN_FAILED);
                 spin_lock_bh(&session->lock);
                 goto failed;
         }
 
-success:
+success_cleanup:
         debug_scsi("abort success [sc %lx itt 0x%x]\n", (long)sc, ctask->itt);
         spin_unlock_bh(&session->lock);
 
@@ -1121,6 +1146,7 @@ success:
         spin_unlock(&session->lock);
         write_unlock_bh(conn->recv_lock);
 
+success_rel_mutex:
         mutex_unlock(&conn->xmitmutex);
         return SUCCESS;
 
@@ -1263,6 +1289,7 @@ iscsi_session_setup(struct iscsi_transport *iscsit,
                 if (cmd_task_size)
                         ctask->dd_data = &ctask[1];
                 ctask->itt = cmd_i;
+                INIT_LIST_HEAD(&ctask->running);
         }
 
         spin_lock_init(&session->lock);
@@ -1282,6 +1309,7 @@ iscsi_session_setup(struct iscsi_transport *iscsit,
                 if (mgmt_task_size)
                         mtask->dd_data = &mtask[1];
                 mtask->itt = ISCSI_MGMT_ITT_OFFSET + cmd_i;
+                INIT_LIST_HEAD(&mtask->running);
         }
 
         if (scsi_add_host(shost, NULL))
@@ -1322,15 +1350,18 @@ void iscsi_session_teardown(struct iscsi_cls_session *cls_session)
 {
         struct Scsi_Host *shost = iscsi_session_to_shost(cls_session);
         struct iscsi_session *session = iscsi_hostdata(shost->hostdata);
+        struct module *owner = cls_session->transport->owner;
 
         scsi_remove_host(shost);
 
         iscsi_pool_free(&session->mgmtpool, (void**)session->mgmt_cmds);
         iscsi_pool_free(&session->cmdpool, (void**)session->cmds);
 
+        kfree(session->targetname);
+
         iscsi_destroy_session(cls_session);
         scsi_host_put(shost);
-        module_put(cls_session->transport->owner);
+        module_put(owner);
 }
 EXPORT_SYMBOL_GPL(iscsi_session_teardown);
 
@@ -1361,12 +1392,7 @@ iscsi_conn_setup(struct iscsi_cls_session *cls_session, uint32_t conn_idx)
         conn->tmabort_state = TMABORT_INITIAL;
         INIT_LIST_HEAD(&conn->run_list);
         INIT_LIST_HEAD(&conn->mgmt_run_list);
-
-        /* initialize general xmit PDU commands queue */
-        conn->xmitqueue = kfifo_alloc(session->cmds_max * sizeof(void*),
-                                        GFP_KERNEL, NULL);
-        if (conn->xmitqueue == ERR_PTR(-ENOMEM))
-                goto xmitqueue_alloc_fail;
+        INIT_LIST_HEAD(&conn->xmitqueue);
 
         /* initialize general immediate & non-immediate PDU commands queue */
         conn->immqueue = kfifo_alloc(session->mgmtpool_max * sizeof(void*),
@@ -1394,7 +1420,7 @@ iscsi_conn_setup(struct iscsi_cls_session *cls_session, uint32_t conn_idx)
         data = kmalloc(DEFAULT_MAX_RECV_DATA_SEGMENT_LENGTH, GFP_KERNEL);
         if (!data)
                 goto login_mtask_data_alloc_fail;
-        conn->login_mtask->data = data;
+        conn->login_mtask->data = conn->data = data;
 
         init_timer(&conn->tmabort_timer);
         mutex_init(&conn->xmitmutex);
@@ -1410,8 +1436,6 @@ login_mtask_alloc_fail:
 mgmtqueue_alloc_fail:
         kfifo_free(conn->immqueue);
 immqueue_alloc_fail:
-        kfifo_free(conn->xmitqueue);
-xmitqueue_alloc_fail:
         iscsi_destroy_conn(cls_conn);
         return NULL;
 }
@@ -1432,12 +1456,6 @@ void iscsi_conn_teardown(struct iscsi_cls_conn *cls_conn)
 
         set_bit(ISCSI_SUSPEND_BIT, &conn->suspend_tx);
         mutex_lock(&conn->xmitmutex);
-        if (conn->c_stage == ISCSI_CONN_INITIAL_STAGE) {
-                if (session->tt->suspend_conn_recv)
-                        session->tt->suspend_conn_recv(conn);
-
-                session->tt->terminate_conn(conn);
-        }
 
         spin_lock_bh(&session->lock);
         conn->c_stage = ISCSI_CONN_CLEANUP_WAIT;
@@ -1474,7 +1492,8 @@ void iscsi_conn_teardown(struct iscsi_cls_conn *cls_conn)
         }
 
         spin_lock_bh(&session->lock);
-        kfree(conn->login_mtask->data);
+        kfree(conn->data);
+        kfree(conn->persistent_address);
         __kfifo_put(session->mgmtpool.queue, (void*)&conn->login_mtask,
                     sizeof(void*));
         list_del(&conn->item);
@@ -1489,7 +1508,6 @@ void iscsi_conn_teardown(struct iscsi_cls_conn *cls_conn)
                 session->cmdsn = session->max_cmdsn = session->exp_cmdsn = 1;
         spin_unlock_bh(&session->lock);
 
-        kfifo_free(conn->xmitqueue);
         kfifo_free(conn->immqueue);
         kfifo_free(conn->mgmtqueue);
 
@@ -1572,7 +1590,7 @@ static void fail_all_commands(struct iscsi_conn *conn)
         struct iscsi_cmd_task *ctask, *tmp;
 
         /* flush pending */
-        while (__kfifo_get(conn->xmitqueue, (void*)&ctask, sizeof(void*))) {
+        list_for_each_entry_safe(ctask, tmp, &conn->xmitqueue, running) {
                 debug_scsi("failing pending sc %p itt 0x%x\n", ctask->sc,
                            ctask->itt);
                 fail_command(conn, ctask, DID_BUS_BUSY << 16);
@@ -1615,8 +1633,9 @@ static void iscsi_start_session_recovery(struct iscsi_session *session,
         set_bit(ISCSI_SUSPEND_BIT, &conn->suspend_tx);
         spin_unlock_bh(&session->lock);
 
-        if (session->tt->suspend_conn_recv)
-                session->tt->suspend_conn_recv(conn);
+        write_lock_bh(conn->recv_lock);
+        set_bit(ISCSI_SUSPEND_BIT, &conn->suspend_rx);
+        write_unlock_bh(conn->recv_lock);
 
         mutex_lock(&conn->xmitmutex);
         /*
@@ -1635,7 +1654,6 @@ static void iscsi_start_session_recovery(struct iscsi_session *session,
                 }
         }
 
-        session->tt->terminate_conn(conn);
         /*
          * flush queues.
          */
diff --git a/drivers/scsi/lpfc/lpfc_attr.c b/drivers/scsi/lpfc/lpfc_attr.c
index 5c68cdd8736f..d384c16f4a87 100644
--- a/drivers/scsi/lpfc/lpfc_attr.c
+++ b/drivers/scsi/lpfc/lpfc_attr.c
@@ -222,7 +222,7 @@ lpfc_issue_lip(struct Scsi_Host *host)
         pmboxq->mb.mbxCommand = MBX_DOWN_LINK;
         pmboxq->mb.mbxOwner = OWN_HOST;
 
-        mbxstatus = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2);
+        mbxstatus = lpfc_sli_issue_mbox_wait(phba, pmboxq, LPFC_MBOX_TMO * 2);
 
         if ((mbxstatus == MBX_SUCCESS) && (pmboxq->mb.mbxStatus == 0)) {
                 memset((void *)pmboxq, 0, sizeof (LPFC_MBOXQ_t));
@@ -884,7 +884,7 @@ sysfs_mbox_write(struct kobject *kobj, char *buf, loff_t off, size_t count)
                     phba->sysfs_mbox.mbox   == NULL ) {
                         sysfs_mbox_idle(phba);
                         spin_unlock_irq(host->host_lock);
-                        return -EINVAL;
+                        return -EAGAIN;
                 }
         }
 
@@ -1000,14 +1000,15 @@ sysfs_mbox_read(struct kobject *kobj, char *buf, loff_t off, size_t count)
                         spin_unlock_irq(phba->host->host_lock);
                         rc = lpfc_sli_issue_mbox_wait (phba,
                                                        phba->sysfs_mbox.mbox,
-                                                       phba->fc_ratov * 2);
+                                lpfc_mbox_tmo_val(phba,
+                                    phba->sysfs_mbox.mbox->mb.mbxCommand) * HZ);
                         spin_lock_irq(phba->host->host_lock);
                 }
 
                 if (rc != MBX_SUCCESS) {
                         sysfs_mbox_idle(phba);
                         spin_unlock_irq(host->host_lock);
-                        return -ENODEV;
+                        return  (rc == MBX_TIMEOUT) ? -ETIME : -ENODEV;
                 }
                 phba->sysfs_mbox.state = SMBOX_READING;
         }
@@ -1016,7 +1017,7 @@ sysfs_mbox_read(struct kobject *kobj, char *buf, loff_t off, size_t count)
                 printk(KERN_WARNING  "mbox_read: Bad State\n");
                 sysfs_mbox_idle(phba);
                 spin_unlock_irq(host->host_lock);
-                return -EINVAL;
+                return -EAGAIN;
         }
 
         memcpy(buf, (uint8_t *) & phba->sysfs_mbox.mbox->mb + off, count);
@@ -1210,8 +1211,10 @@ lpfc_get_stats(struct Scsi_Host *shost)
         struct lpfc_hba *phba = (struct lpfc_hba *)shost->hostdata;
         struct lpfc_sli *psli = &phba->sli;
         struct fc_host_statistics *hs = &phba->link_stats;
+        struct lpfc_lnk_stat * lso = &psli->lnk_stat_offsets;
         LPFC_MBOXQ_t *pmboxq;
         MAILBOX_t *pmb;
+        unsigned long seconds;
         int rc = 0;
 
         pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
@@ -1272,22 +1275,103 @@ lpfc_get_stats(struct Scsi_Host *shost)
         hs->invalid_crc_count = pmb->un.varRdLnk.crcCnt;
         hs->error_frames = pmb->un.varRdLnk.crcCnt;
 
+        hs->link_failure_count -= lso->link_failure_count;
+        hs->loss_of_sync_count -= lso->loss_of_sync_count;
+        hs->loss_of_signal_count -= lso->loss_of_signal_count;
+        hs->prim_seq_protocol_err_count -= lso->prim_seq_protocol_err_count;
+        hs->invalid_tx_word_count -= lso->invalid_tx_word_count;
+        hs->invalid_crc_count -= lso->invalid_crc_count;
+        hs->error_frames -= lso->error_frames;
+
         if (phba->fc_topology == TOPOLOGY_LOOP) {
                 hs->lip_count = (phba->fc_eventTag >> 1);
+                hs->lip_count -= lso->link_events;
                 hs->nos_count = -1;
         } else {
                 hs->lip_count = -1;
                 hs->nos_count = (phba->fc_eventTag >> 1);
+                hs->nos_count -= lso->link_events;
         }
 
         hs->dumped_frames = -1;
 
-/* FIX ME */
-        /*hs->SecondsSinceLastReset = (jiffies - lpfc_loadtime) / HZ;*/
+        seconds = get_seconds();
+        if (seconds < psli->stats_start)
+                hs->seconds_since_last_reset = seconds +
+                                ((unsigned long)-1 - psli->stats_start);
+        else
+                hs->seconds_since_last_reset = seconds - psli->stats_start;
 
         return hs;
 }
 
+static void
+lpfc_reset_stats(struct Scsi_Host *shost)
+{
+        struct lpfc_hba *phba = (struct lpfc_hba *)shost->hostdata;
+        struct lpfc_sli *psli = &phba->sli;
+        struct lpfc_lnk_stat * lso = &psli->lnk_stat_offsets;
+        LPFC_MBOXQ_t *pmboxq;
+        MAILBOX_t *pmb;
+        int rc = 0;
+
+        pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
+        if (!pmboxq)
+                return;
+        memset(pmboxq, 0, sizeof(LPFC_MBOXQ_t));
+
+        pmb = &pmboxq->mb;
+        pmb->mbxCommand = MBX_READ_STATUS;
+        pmb->mbxOwner = OWN_HOST;
+        pmb->un.varWords[0] = 0x1; /* reset request */
+        pmboxq->context1 = NULL;
+
+        if ((phba->fc_flag & FC_OFFLINE_MODE) ||
+                (!(psli->sli_flag & LPFC_SLI2_ACTIVE)))
+                rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL);
+        else
+                rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2);
+
+        if (rc != MBX_SUCCESS) {
+                if (rc == MBX_TIMEOUT)
+                        pmboxq->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
+                else
+                        mempool_free(pmboxq, phba->mbox_mem_pool);
+                return;
+        }
+
+        memset(pmboxq, 0, sizeof(LPFC_MBOXQ_t));
+        pmb->mbxCommand = MBX_READ_LNK_STAT;
+        pmb->mbxOwner = OWN_HOST;
+        pmboxq->context1 = NULL;
+
+        if ((phba->fc_flag & FC_OFFLINE_MODE) ||
+            (!(psli->sli_flag & LPFC_SLI2_ACTIVE)))
+                rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL);
+        else
+                rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2);
+
+        if (rc != MBX_SUCCESS) {
+                if (rc == MBX_TIMEOUT)
+                        pmboxq->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
+                else
+                        mempool_free( pmboxq, phba->mbox_mem_pool);
+                return;
+        }
+
+        lso->link_failure_count = pmb->un.varRdLnk.linkFailureCnt;
+        lso->loss_of_sync_count = pmb->un.varRdLnk.lossSyncCnt;
+        lso->loss_of_signal_count = pmb->un.varRdLnk.lossSignalCnt;
+        lso->prim_seq_protocol_err_count = pmb->un.varRdLnk.primSeqErrCnt;
+        lso->invalid_tx_word_count = pmb->un.varRdLnk.invalidXmitWord;
+        lso->invalid_crc_count = pmb->un.varRdLnk.crcCnt;
+        lso->error_frames = pmb->un.varRdLnk.crcCnt;
+        lso->link_events = (phba->fc_eventTag >> 1);
+
+        psli->stats_start = get_seconds();
+
+        return;
+}
 
 /*
  * The LPFC driver treats linkdown handling as target loss events so there
@@ -1431,8 +1515,7 @@ struct fc_function_template lpfc_transport_functions = {
          */
 
         .get_fc_host_stats = lpfc_get_stats,
-
-        /* the LPFC driver doesn't support resetting stats yet */
+        .reset_fc_host_stats = lpfc_reset_stats,
 
         .dd_fcrport_size = sizeof(struct lpfc_rport_data),
         .show_rport_maxframe_size = 1,
diff --git a/drivers/scsi/lpfc/lpfc_crtn.h b/drivers/scsi/lpfc/lpfc_crtn.h
index 517e9e4dd461..2a176467f71b 100644
--- a/drivers/scsi/lpfc/lpfc_crtn.h
+++ b/drivers/scsi/lpfc/lpfc_crtn.h
@@ -127,6 +127,7 @@ void lpfc_config_port(struct lpfc_hba *, LPFC_MBOXQ_t *);
 void lpfc_kill_board(struct lpfc_hba *, LPFC_MBOXQ_t *);
 void lpfc_mbox_put(struct lpfc_hba *, LPFC_MBOXQ_t *);
 LPFC_MBOXQ_t *lpfc_mbox_get(struct lpfc_hba *);
+int lpfc_mbox_tmo_val(struct lpfc_hba *, int);
 
 int lpfc_mem_alloc(struct lpfc_hba *);
 void lpfc_mem_free(struct lpfc_hba *);
diff --git a/drivers/scsi/lpfc/lpfc_ct.c b/drivers/scsi/lpfc/lpfc_ct.c
index b65ee57af53e..bbb7310210b0 100644
--- a/drivers/scsi/lpfc/lpfc_ct.c
+++ b/drivers/scsi/lpfc/lpfc_ct.c
@@ -131,6 +131,7 @@ lpfc_ct_unsol_event(struct lpfc_hba * phba,
         }
 
 ct_unsol_event_exit_piocbq:
+        list_del(&head);
         if (pmbuf) {
                 list_for_each_entry_safe(matp, next_matp, &pmbuf->list, list) {
                         lpfc_mbuf_free(phba, matp->virt, matp->phys);
@@ -481,7 +482,7 @@ lpfc_cmpl_ct_cmd_gid_ft(struct lpfc_hba * phba, struct lpfc_iocbq * cmdiocb,
                 if (CTrsp->CommandResponse.bits.CmdRsp ==
                     be16_to_cpu(SLI_CT_RESPONSE_FS_ACC)) {
                         lpfc_printf_log(phba, KERN_INFO, LOG_DISCOVERY,
-                                        "%d:0239 NameServer Rsp "
+                                        "%d:0208 NameServer Rsp "
                                         "Data: x%x\n",
                                         phba->brd_no,
                                         phba->fc_flag);
@@ -588,13 +589,9 @@ lpfc_get_hba_sym_node_name(struct lpfc_hba * phba, uint8_t * symbp)
 
         lpfc_decode_firmware_rev(phba, fwrev, 0);
 
-        if (phba->Port[0]) {
-                sprintf(symbp, "Emulex %s Port %s FV%s DV%s", phba->ModelName,
-                        phba->Port, fwrev, lpfc_release_version);
-        } else {
-                sprintf(symbp, "Emulex %s FV%s DV%s", phba->ModelName,
-                        fwrev, lpfc_release_version);
-        }
+        sprintf(symbp, "Emulex %s FV%s DV%s", phba->ModelName,
+                fwrev, lpfc_release_version);
+        return;
 }
 
 /*
diff --git a/drivers/scsi/lpfc/lpfc_els.c b/drivers/scsi/lpfc/lpfc_els.c
index b89f6cb641e6..3567de613162 100644
--- a/drivers/scsi/lpfc/lpfc_els.c
+++ b/drivers/scsi/lpfc/lpfc_els.c
@@ -1848,9 +1848,12 @@ static void
 lpfc_cmpl_els_acc(struct lpfc_hba * phba, struct lpfc_iocbq * cmdiocb,
                   struct lpfc_iocbq * rspiocb)
 {
+        IOCB_t *irsp;
         struct lpfc_nodelist *ndlp;
         LPFC_MBOXQ_t *mbox = NULL;
 
+        irsp = &rspiocb->iocb;
+
         ndlp = (struct lpfc_nodelist *) cmdiocb->context1;
         if (cmdiocb->context_un.mbox)
                 mbox = cmdiocb->context_un.mbox;
@@ -1893,9 +1896,15 @@ lpfc_cmpl_els_acc(struct lpfc_hba * phba, struct lpfc_iocbq * cmdiocb,
                         mempool_free( mbox, phba->mbox_mem_pool);
                 } else {
                         mempool_free( mbox, phba->mbox_mem_pool);
-                        if (ndlp->nlp_flag & NLP_ACC_REGLOGIN) {
-                                lpfc_nlp_list(phba, ndlp, NLP_NO_LIST);
-                                ndlp = NULL;
+                        /* Do not call NO_LIST for lpfc_els_abort'ed ELS cmds */
+                        if (!((irsp->ulpStatus == IOSTAT_LOCAL_REJECT) &&
+                              ((irsp->un.ulpWord[4] == IOERR_SLI_ABORTED) ||
+                               (irsp->un.ulpWord[4] == IOERR_LINK_DOWN) ||
+                               (irsp->un.ulpWord[4] == IOERR_SLI_DOWN)))) {
+                                if (ndlp->nlp_flag & NLP_ACC_REGLOGIN) {
+                                        lpfc_nlp_list(phba, ndlp, NLP_NO_LIST);
+                                        ndlp = NULL;
+                                }
                         }
                 }
         }
@@ -2839,7 +2848,7 @@ lpfc_els_rsp_rps_acc(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
 
         /* Xmit ELS RPS ACC response tag <ulpIoTag> */
         lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
-                        "%d:0128 Xmit ELS RPS ACC response tag x%x "
+                        "%d:0118 Xmit ELS RPS ACC response tag x%x "
                         "Data: x%x x%x x%x x%x x%x\n",
                         phba->brd_no,
                         elsiocb->iocb.ulpIoTag,
@@ -2948,7 +2957,7 @@ lpfc_els_rsp_rpl_acc(struct lpfc_hba * phba, uint16_t cmdsize,
 
         /* Xmit ELS RPL ACC response tag <ulpIoTag> */
         lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
-                        "%d:0128 Xmit ELS RPL ACC response tag x%x "
+                        "%d:0120 Xmit ELS RPL ACC response tag x%x "
                         "Data: x%x x%x x%x x%x x%x\n",
                         phba->brd_no,
                         elsiocb->iocb.ulpIoTag,
@@ -3109,7 +3118,7 @@ lpfc_els_rcv_fan(struct lpfc_hba * phba, struct lpfc_iocbq * cmdiocb,
         struct lpfc_nodelist *ndlp, *next_ndlp;
 
         /* FAN received */
-        lpfc_printf_log(phba, KERN_INFO, LOG_ELS, "%d:265 FAN received\n",
+        lpfc_printf_log(phba, KERN_INFO, LOG_ELS, "%d:0265 FAN received\n",
                                                                 phba->brd_no);
 
         icmd = &cmdiocb->iocb;
diff --git a/drivers/scsi/lpfc/lpfc_hbadisc.c b/drivers/scsi/lpfc/lpfc_hbadisc.c
index 4d6cf990c4fc..b2f1552f1848 100644
--- a/drivers/scsi/lpfc/lpfc_hbadisc.c
+++ b/drivers/scsi/lpfc/lpfc_hbadisc.c
@@ -1557,6 +1557,8 @@ lpfc_freenode(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp)
                         mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
                 }
         }
+
+        spin_lock_irq(phba->host->host_lock);
         list_for_each_entry_safe(mb, nextmb, &phba->sli.mboxq, list) {
                 if ((mb->mb.mbxCommand == MBX_REG_LOGIN64) &&
                    (ndlp == (struct lpfc_nodelist *) mb->context2)) {
@@ -1569,6 +1571,7 @@ lpfc_freenode(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp)
                         mempool_free(mb, phba->mbox_mem_pool);
                 }
         }
+        spin_unlock_irq(phba->host->host_lock);
 
         lpfc_els_abort(phba,ndlp,0);
         spin_lock_irq(phba->host->host_lock);
@@ -1782,7 +1785,7 @@ lpfc_findnode_did(struct lpfc_hba * phba, uint32_t order, uint32_t did)
                                 /* LOG change to REGLOGIN */
                                 /* FIND node DID reglogin */
                                 lpfc_printf_log(phba, KERN_INFO, LOG_NODE,
-                                                "%d:0931 FIND node DID reglogin"
+                                                "%d:0901 FIND node DID reglogin"
                                                 " Data: x%p x%x x%x x%x\n",
                                                 phba->brd_no,
                                                 ndlp, ndlp->nlp_DID,
@@ -1805,7 +1808,7 @@ lpfc_findnode_did(struct lpfc_hba * phba, uint32_t order, uint32_t did)
                                 /* LOG change to PRLI */
                                 /* FIND node DID prli */
                                 lpfc_printf_log(phba, KERN_INFO, LOG_NODE,
-                                                "%d:0931 FIND node DID prli "
+                                                "%d:0902 FIND node DID prli "
                                                 "Data: x%p x%x x%x x%x\n",
                                                 phba->brd_no,
                                                 ndlp, ndlp->nlp_DID,
@@ -1828,7 +1831,7 @@ lpfc_findnode_did(struct lpfc_hba * phba, uint32_t order, uint32_t did)
                                 /* LOG change to NPR */
                                 /* FIND node DID npr */
                                 lpfc_printf_log(phba, KERN_INFO, LOG_NODE,
-                                                "%d:0931 FIND node DID npr "
+                                                "%d:0903 FIND node DID npr "
                                                 "Data: x%p x%x x%x x%x\n",
                                                 phba->brd_no,
                                                 ndlp, ndlp->nlp_DID,
@@ -1851,7 +1854,7 @@ lpfc_findnode_did(struct lpfc_hba * phba, uint32_t order, uint32_t did)
                                 /* LOG change to UNUSED */
                                 /* FIND node DID unused */
                                 lpfc_printf_log(phba, KERN_INFO, LOG_NODE,
-                                                "%d:0931 FIND node DID unused "
+                                                "%d:0905 FIND node DID unused "
                                                 "Data: x%p x%x x%x x%x\n",
                                                 phba->brd_no,
                                                 ndlp, ndlp->nlp_DID,
@@ -2335,7 +2338,7 @@ lpfc_disc_timeout_handler(struct lpfc_hba *phba)
                 initlinkmbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
                 if (!initlinkmbox) {
                         lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
-                                        "%d:0226 Device Discovery "
+                                        "%d:0206 Device Discovery "
                                         "completion error\n",
                                         phba->brd_no);
                         phba->hba_state = LPFC_HBA_ERROR;
@@ -2365,7 +2368,7 @@ lpfc_disc_timeout_handler(struct lpfc_hba *phba)
                 if (!clearlambox) {
                         clrlaerr = 1;
                         lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
-                                        "%d:0226 Device Discovery "
+                                        "%d:0207 Device Discovery "
                                         "completion error\n",
                                         phba->brd_no);
                         phba->hba_state = LPFC_HBA_ERROR;
diff --git a/drivers/scsi/lpfc/lpfc_init.c b/drivers/scsi/lpfc/lpfc_init.c
index ef47b824cbed..f6948ffe689a 100644
--- a/drivers/scsi/lpfc/lpfc_init.c
+++ b/drivers/scsi/lpfc/lpfc_init.c
@@ -1379,6 +1379,7 @@ lpfc_offline(struct lpfc_hba * phba)
         /* stop all timers associated with this hba */
         lpfc_stop_timer(phba);
         phba->work_hba_events = 0;
+        phba->work_ha = 0;
 
         lpfc_printf_log(phba,
                        KERN_WARNING,
@@ -1616,7 +1617,11 @@ lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid)
                 goto out_free_iocbq;
         }
 
-        /* We can rely on a queue depth attribute only after SLI HBA setup */
+        /*
+         * Set initial can_queue value since 0 is no longer supported and
+         * scsi_add_host will fail. This will be adjusted later based on the
+         * max xri value determined in hba setup.
+         */
         host->can_queue = phba->cfg_hba_queue_depth - 10;
 
         /* Tell the midlayer we support 16 byte commands */
@@ -1656,6 +1661,12 @@ lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid)
                 goto out_free_irq;
         }
 
+        /*
+         * hba setup may have changed the hba_queue_depth so we need to adjust
+         * the value of can_queue.
+         */
+        host->can_queue = phba->cfg_hba_queue_depth - 10;
+
         lpfc_discovery_wait(phba);
 
         if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
diff --git a/drivers/scsi/lpfc/lpfc_mbox.c b/drivers/scsi/lpfc/lpfc_mbox.c
index e42f22aaf71b..4d016c2a1b26 100644
--- a/drivers/scsi/lpfc/lpfc_mbox.c
+++ b/drivers/scsi/lpfc/lpfc_mbox.c
@@ -651,3 +651,19 @@ lpfc_mbox_get(struct lpfc_hba * phba)
 
         return mbq;
 }
+
+int
+lpfc_mbox_tmo_val(struct lpfc_hba *phba, int cmd)
+{
+        switch (cmd) {
+        case MBX_WRITE_NV:      /* 0x03 */
+        case MBX_UPDATE_CFG:    /* 0x1B */
+        case MBX_DOWN_LOAD:     /* 0x1C */
+        case MBX_DEL_LD_ENTRY:  /* 0x1D */
+        case MBX_LOAD_AREA:     /* 0x81 */
+        case MBX_FLASH_WR_ULA:  /* 0x98 */
+        case MBX_LOAD_EXP_ROM:  /* 0x9C */
+                return LPFC_MBOX_TMO_FLASH_CMD;
+        }
+        return LPFC_MBOX_TMO;
+}
diff --git a/drivers/scsi/lpfc/lpfc_nportdisc.c b/drivers/scsi/lpfc/lpfc_nportdisc.c
index bd0b0e293d63..20449a8dd53d 100644
--- a/drivers/scsi/lpfc/lpfc_nportdisc.c
+++ b/drivers/scsi/lpfc/lpfc_nportdisc.c
@@ -179,7 +179,7 @@ lpfc_els_abort(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp,
 
         /* Abort outstanding I/O on NPort <nlp_DID> */
         lpfc_printf_log(phba, KERN_INFO, LOG_DISCOVERY,
-                        "%d:0201 Abort outstanding I/O on NPort x%x "
+                        "%d:0205 Abort outstanding I/O on NPort x%x "
                         "Data: x%x x%x x%x\n",
                         phba->brd_no, ndlp->nlp_DID, ndlp->nlp_flag,
                         ndlp->nlp_state, ndlp->nlp_rpi);
@@ -393,6 +393,20 @@ lpfc_rcv_plogi(struct lpfc_hba * phba,
         mbox->context2  = ndlp;
         ndlp->nlp_flag |= (NLP_ACC_REGLOGIN | NLP_RCV_PLOGI);
 
+        /*
+         * If there is an outstanding PLOGI issued, abort it before
+         * sending ACC rsp for received PLOGI. If pending plogi
+         * is not canceled here, the plogi will be rejected by
+         * remote port and will be retried. On a configuration with
+         * single discovery thread, this will cause a huge delay in
+         * discovery. Also this will cause multiple state machines
+         * running in parallel for this node.
+         */
+        if (ndlp->nlp_state == NLP_STE_PLOGI_ISSUE) {
+                /* software abort outstanding PLOGI */
+                lpfc_els_abort(phba, ndlp, 1);
+        }
+
         lpfc_els_rsp_acc(phba, ELS_CMD_PLOGI, cmdiocb, ndlp, mbox, 0);
         return 1;
 
@@ -1601,7 +1615,13 @@ lpfc_rcv_padisc_npr_node(struct lpfc_hba * phba,
 
         lpfc_rcv_padisc(phba, ndlp, cmdiocb);
 
-        if (!(ndlp->nlp_flag & NLP_DELAY_TMO)) {
+        /*
+         * Do not start discovery if discovery is about to start
+         * or discovery in progress for this node. Starting discovery
+         * here will affect the counting of discovery threads.
+         */
+        if ((!(ndlp->nlp_flag & NLP_DELAY_TMO)) &&
+                (ndlp->nlp_flag & NLP_NPR_2B_DISC)){
                 if (ndlp->nlp_flag & NLP_NPR_ADISC) {
                         ndlp->nlp_prev_state = NLP_STE_NPR_NODE;
                         ndlp->nlp_state = NLP_STE_ADISC_ISSUE;
diff --git a/drivers/scsi/lpfc/lpfc_scsi.c b/drivers/scsi/lpfc/lpfc_scsi.c
index a760a44173df..a8816a8738f8 100644
--- a/drivers/scsi/lpfc/lpfc_scsi.c
+++ b/drivers/scsi/lpfc/lpfc_scsi.c
@@ -21,6 +21,7 @@
 
 #include <linux/pci.h>
 #include <linux/interrupt.h>
+#include <linux/delay.h>
 
 #include <scsi/scsi.h>
 #include <scsi/scsi_device.h>
@@ -841,6 +842,21 @@ lpfc_queuecommand(struct scsi_cmnd *cmnd, void (*done) (struct scsi_cmnd *))
         return 0;
 }
 
+static void
+lpfc_block_error_handler(struct scsi_cmnd *cmnd)
+{
+        struct Scsi_Host *shost = cmnd->device->host;
+        struct fc_rport *rport = starget_to_rport(scsi_target(cmnd->device));
+
+        spin_lock_irq(shost->host_lock);
+        while (rport->port_state == FC_PORTSTATE_BLOCKED) {
+                spin_unlock_irq(shost->host_lock);
+                msleep(1000);
+                spin_lock_irq(shost->host_lock);
+        }
+        spin_unlock_irq(shost->host_lock);
+        return;
+}
 
 static int
 lpfc_abort_handler(struct scsi_cmnd *cmnd)
@@ -855,6 +871,7 @@ lpfc_abort_handler(struct scsi_cmnd *cmnd)
         unsigned int loop_count = 0;
         int ret = SUCCESS;
 
+        lpfc_block_error_handler(cmnd);
         spin_lock_irq(shost->host_lock);
 
         lpfc_cmd = (struct lpfc_scsi_buf *)cmnd->host_scribble;
@@ -957,6 +974,7 @@ lpfc_reset_lun_handler(struct scsi_cmnd *cmnd)
         int ret = FAILED;
         int cnt, loopcnt;
 
+        lpfc_block_error_handler(cmnd);
         spin_lock_irq(shost->host_lock);
         /*
          * If target is not in a MAPPED state, delay the reset until
@@ -1073,6 +1091,7 @@ lpfc_reset_bus_handler(struct scsi_cmnd *cmnd)
         int cnt, loopcnt;
         struct lpfc_scsi_buf * lpfc_cmd;
 
+        lpfc_block_error_handler(cmnd);
         spin_lock_irq(shost->host_lock);
 
         lpfc_cmd = lpfc_get_scsi_buf(phba);
@@ -1104,7 +1123,7 @@ lpfc_reset_bus_handler(struct scsi_cmnd *cmnd)
                                           ndlp->rport->dd_data);
                 if (ret != SUCCESS) {
                         lpfc_printf_log(phba, KERN_ERR, LOG_FCP,
-                                "%d:0713 Bus Reset on target %d failed\n",
+                                "%d:0700 Bus Reset on target %d failed\n",
                                 phba->brd_no, i);
                         err_count++;
                 }
diff --git a/drivers/scsi/lpfc/lpfc_sli.c b/drivers/scsi/lpfc/lpfc_sli.c
index 350a625fa224..70f4d5a1348e 100644
--- a/drivers/scsi/lpfc/lpfc_sli.c
+++ b/drivers/scsi/lpfc/lpfc_sli.c
@@ -320,7 +320,8 @@ lpfc_sli_next_iotag(struct lpfc_hba * phba, struct lpfc_iocbq * iocbq)
                         kfree(old_arr);
                         return iotag;
                 }
-        }
+        } else
+                spin_unlock_irq(phba->host->host_lock);
 
         lpfc_printf_log(phba, KERN_ERR,LOG_SLI,
                         "%d:0318 Failed to allocate IOTAG.last IOTAG is %d\n",
@@ -969,9 +970,11 @@ void lpfc_sli_poll_fcp_ring(struct lpfc_hba * phba)
                          * resources need to be recovered.
                          */
                         if (unlikely(irsp->ulpCommand == CMD_XRI_ABORTED_CX)) {
-                                printk(KERN_INFO "%s: IOCB cmd 0x%x processed."
-                                       " Skipping completion\n", __FUNCTION__,
-                                       irsp->ulpCommand);
+                                lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
+                                                "%d:0314 IOCB cmd 0x%x"
+                                                " processed. Skipping"
+                                                " completion", phba->brd_no,
+                                                irsp->ulpCommand);
                                 break;
                         }
 
@@ -1104,7 +1107,7 @@ lpfc_sli_handle_fast_ring_event(struct lpfc_hba * phba,
                 if (unlikely(irsp->ulpStatus)) {
                         /* Rsp ring <ringno> error: IOCB */
                         lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
-                                "%d:0326 Rsp Ring %d error: IOCB Data: "
+                                "%d:0336 Rsp Ring %d error: IOCB Data: "
                                 "x%x x%x x%x x%x x%x x%x x%x x%x\n",
                                 phba->brd_no, pring->ringno,
                                 irsp->un.ulpWord[0], irsp->un.ulpWord[1],
@@ -1122,9 +1125,11 @@ lpfc_sli_handle_fast_ring_event(struct lpfc_hba * phba,
                          * resources need to be recovered.
                          */
                         if (unlikely(irsp->ulpCommand == CMD_XRI_ABORTED_CX)) {
-                                printk(KERN_INFO "%s: IOCB cmd 0x%x processed. "
-                                       "Skipping completion\n", __FUNCTION__,
-                                       irsp->ulpCommand);
+                                lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
+                                                "%d:0333 IOCB cmd 0x%x"
+                                                " processed. Skipping"
+                                                " completion\n", phba->brd_no,
+                                                irsp->ulpCommand);
                                 break;
                         }
 
@@ -1155,7 +1160,7 @@ lpfc_sli_handle_fast_ring_event(struct lpfc_hba * phba,
                         } else {
                                 /* Unknown IOCB command */
                                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
-                                        "%d:0321 Unknown IOCB command "
+                                        "%d:0334 Unknown IOCB command "
                                         "Data: x%x, x%x x%x x%x x%x\n",
                                         phba->brd_no, type, irsp->ulpCommand,
                                         irsp->ulpStatus, irsp->ulpIoTag,
@@ -1238,7 +1243,7 @@ lpfc_sli_handle_slow_ring_event(struct lpfc_hba * phba,
                 lpfc_printf_log(phba,
                                 KERN_ERR,
                                 LOG_SLI,
-                                "%d:0312 Ring %d handler: portRspPut %d "
+                                "%d:0303 Ring %d handler: portRspPut %d "
                                 "is bigger then rsp ring %d\n",
                                 phba->brd_no,
                                 pring->ringno, portRspPut, portRspMax);
@@ -1383,7 +1388,7 @@ lpfc_sli_handle_slow_ring_event(struct lpfc_hba * phba,
                                         lpfc_printf_log(phba,
                                                 KERN_ERR,
                                                 LOG_SLI,
-                                                "%d:0321 Unknown IOCB command "
+                                                "%d:0335 Unknown IOCB command "
                                                 "Data: x%x x%x x%x x%x\n",
                                                 phba->brd_no,
                                                 irsp->ulpCommand,
@@ -1399,11 +1404,11 @@ lpfc_sli_handle_slow_ring_event(struct lpfc_hba * phba,
                                                                  next_iocb,
                                                                  &saveq->list,
                                                                  list) {
+                                                list_del(&rspiocbp->list);
                                                 lpfc_sli_release_iocbq(phba,
                                                                      rspiocbp);
                                         }
                                 }
-
                                 lpfc_sli_release_iocbq(phba, saveq);
                         }
                 }
@@ -1711,15 +1716,13 @@ lpfc_sli_brdreset(struct lpfc_hba * phba)
         phba->fc_myDID = 0;
         phba->fc_prevDID = 0;
 
-        psli->sli_flag = 0;
-
         /* Turn off parity checking and serr during the physical reset */
         pci_read_config_word(phba->pcidev, PCI_COMMAND, &cfg_value);
         pci_write_config_word(phba->pcidev, PCI_COMMAND,
                               (cfg_value &
                                ~(PCI_COMMAND_PARITY | PCI_COMMAND_SERR)));
 
-        psli->sli_flag &= ~LPFC_SLI2_ACTIVE;
+        psli->sli_flag &= ~(LPFC_SLI2_ACTIVE | LPFC_PROCESS_LA);
         /* Now toggle INITFF bit in the Host Control Register */
         writel(HC_INITFF, phba->HCregaddr);
         mdelay(1);
@@ -1760,7 +1763,7 @@ lpfc_sli_brdrestart(struct lpfc_hba * phba)
 
         /* Restart HBA */
         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
-                        "%d:0328 Restart HBA Data: x%x x%x\n", phba->brd_no,
+                        "%d:0337 Restart HBA Data: x%x x%x\n", phba->brd_no,
                         phba->hba_state, psli->sli_flag);
 
         word0 = 0;
@@ -1792,6 +1795,9 @@ lpfc_sli_brdrestart(struct lpfc_hba * phba)
 
         spin_unlock_irq(phba->host->host_lock);
 
+        memset(&psli->lnk_stat_offsets, 0, sizeof(psli->lnk_stat_offsets));
+        psli->stats_start = get_seconds();
+
         if (skip_post)
                 mdelay(100);
         else
@@ -1902,6 +1908,9 @@ lpfc_sli_hba_setup(struct lpfc_hba * phba)
         }
 
         while (resetcount < 2 && !done) {
+                spin_lock_irq(phba->host->host_lock);
+                phba->sli.sli_flag |= LPFC_SLI_MBOX_ACTIVE;
+                spin_unlock_irq(phba->host->host_lock);
                 phba->hba_state = LPFC_STATE_UNKNOWN;
                 lpfc_sli_brdrestart(phba);
                 msleep(2500);
@@ -1909,6 +1918,9 @@ lpfc_sli_hba_setup(struct lpfc_hba * phba)
                 if (rc)
                         break;
 
+                spin_lock_irq(phba->host->host_lock);
+                phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
+                spin_unlock_irq(phba->host->host_lock);
                 resetcount++;
 
         /* Call pre CONFIG_PORT mailbox command initialization.  A value of 0
@@ -2194,7 +2206,8 @@ lpfc_sli_issue_mbox(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmbox, uint32_t flag)
                         return (MBX_NOT_FINISHED);
                 }
                 /* timeout active mbox command */
-                mod_timer(&psli->mbox_tmo, jiffies + HZ * LPFC_MBOX_TMO);
+                mod_timer(&psli->mbox_tmo, (jiffies +
+                               (HZ * lpfc_mbox_tmo_val(phba, mb->mbxCommand))));
         }
 
         /* Mailbox cmd <cmd> issue */
@@ -2254,7 +2267,6 @@ lpfc_sli_issue_mbox(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmbox, uint32_t flag)
                 break;
 
         case MBX_POLL:
-                i = 0;
                 psli->mbox_active = NULL;
                 if (psli->sli_flag & LPFC_SLI2_ACTIVE) {
                         /* First read mbox status word */
@@ -2268,11 +2280,14 @@ lpfc_sli_issue_mbox(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmbox, uint32_t flag)
                 /* Read the HBA Host Attention Register */
                 ha_copy = readl(phba->HAregaddr);
 
+                i = lpfc_mbox_tmo_val(phba, mb->mbxCommand);
+                i *= 1000; /* Convert to ms */
+
                 /* Wait for command to complete */
                 while (((word0 & OWN_CHIP) == OWN_CHIP) ||
                        (!(ha_copy & HA_MBATT) &&
                         (phba->hba_state > LPFC_WARM_START))) {
-                        if (i++ >= 100) {
+                        if (i-- <= 0) {
                                 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
                                 spin_unlock_irqrestore(phba->host->host_lock,
                                                        drvr_flag);
@@ -2290,7 +2305,7 @@ lpfc_sli_issue_mbox(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmbox, uint32_t flag)
 
                         /* Can be in interrupt context, do not sleep */
                         /* (or might be called with interrupts disabled) */
-                        mdelay(i);
+                        mdelay(1);
 
                         spin_lock_irqsave(phba->host->host_lock, drvr_flag);
 
@@ -3005,7 +3020,7 @@ lpfc_sli_issue_iocb_wait(struct lpfc_hba * phba,
 
                 if (timeleft == 0) {
                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
-                                        "%d:0329 IOCB wait timeout error - no "
+                                        "%d:0338 IOCB wait timeout error - no "
                                         "wake response Data x%x\n",
                                         phba->brd_no, timeout);
                         retval = IOCB_TIMEDOUT;
diff --git a/drivers/scsi/lpfc/lpfc_sli.h b/drivers/scsi/lpfc/lpfc_sli.h
index d8ef0d2894d4..e26de6809358 100644
--- a/drivers/scsi/lpfc/lpfc_sli.h
+++ b/drivers/scsi/lpfc/lpfc_sli.h
@@ -172,6 +172,18 @@ struct lpfc_sli_stat {
         uint32_t mbox_busy;      /* Mailbox cmd busy */
 };
 
+/* Structure to store link status values when port stats are reset */
+struct lpfc_lnk_stat {
+        uint32_t link_failure_count;
+        uint32_t loss_of_sync_count;
+        uint32_t loss_of_signal_count;
+        uint32_t prim_seq_protocol_err_count;
+        uint32_t invalid_tx_word_count;
+        uint32_t invalid_crc_count;
+        uint32_t error_frames;
+        uint32_t link_events;
+};
+
 /* Structure used to hold SLI information */
 struct lpfc_sli {
         uint32_t num_rings;
@@ -201,6 +213,8 @@ struct lpfc_sli {
         struct lpfc_iocbq ** iocbq_lookup; /* array to lookup IOCB by IOTAG */
         size_t iocbq_lookup_len;           /* current lengs of the array */
         uint16_t  last_iotag;              /* last allocated IOTAG */
+        unsigned long  stats_start;        /* in seconds */
+        struct lpfc_lnk_stat lnk_stat_offsets;
 };
 
 /* Given a pointer to the start of the ring, and the slot number of
@@ -211,3 +225,9 @@ struct lpfc_sli {
 
 #define LPFC_MBOX_TMO           30      /* Sec tmo for outstanding mbox
                                            command */
+#define LPFC_MBOX_TMO_FLASH_CMD 300     /* Sec tmo for outstanding FLASH write
+                                         * or erase cmds. This is especially
+                                         * long because of the potential of
+                                         * multiple flash erases that can be
+                                         * spawned.
+                                         */
diff --git a/drivers/scsi/lpfc/lpfc_version.h b/drivers/scsi/lpfc/lpfc_version.h
index 10e89c6ae823..c7091ea29f3f 100644
--- a/drivers/scsi/lpfc/lpfc_version.h
+++ b/drivers/scsi/lpfc/lpfc_version.h
@@ -18,7 +18,7 @@
  * included with this package.                                     *
  *******************************************************************/
 
-#define LPFC_DRIVER_VERSION "8.1.7"
+#define LPFC_DRIVER_VERSION "8.1.9"
 
 #define LPFC_DRIVER_NAME "lpfc"
 
diff --git a/drivers/scsi/megaraid/mega_common.h b/drivers/scsi/megaraid/mega_common.h
index 4675343228ad..8cd0bd1d0f7c 100644
--- a/drivers/scsi/megaraid/mega_common.h
+++ b/drivers/scsi/megaraid/mega_common.h
@@ -37,6 +37,12 @@
 #define LSI_MAX_CHANNELS                16
 #define LSI_MAX_LOGICAL_DRIVES_64LD     (64+1)
 
+#define HBA_SIGNATURE_64_BIT            0x299
+#define PCI_CONF_AMISIG64               0xa4
+
+#define MEGA_SCSI_INQ_EVPD              1
+#define MEGA_INVALID_FIELD_IN_CDB       0x24
+
 
 /**
  * scb_t - scsi command control block
diff --git a/drivers/scsi/megaraid/megaraid_ioctl.h b/drivers/scsi/megaraid/megaraid_ioctl.h
index bdaee144a1c3..b8aa34202ec3 100644
--- a/drivers/scsi/megaraid/megaraid_ioctl.h
+++ b/drivers/scsi/megaraid/megaraid_ioctl.h
@@ -132,6 +132,10 @@ typedef struct uioc {
 /* Driver Data: */
         void __user *           user_data;
         uint32_t                user_data_len;
+
+        /* 64bit alignment */
+        uint32_t                pad_for_64bit_align;
+
         mraid_passthru_t        __user *user_pthru;
 
         mraid_passthru_t        *pthru32;
diff --git a/drivers/scsi/megaraid/megaraid_mbox.c b/drivers/scsi/megaraid/megaraid_mbox.c
index 92715130ac09..cd982c877da0 100644
--- a/drivers/scsi/megaraid/megaraid_mbox.c
+++ b/drivers/scsi/megaraid/megaraid_mbox.c
@@ -10,7 +10,7 @@
  *         2 of the License, or (at your option) any later version.
  *
  * FILE         : megaraid_mbox.c
- * Version      : v2.20.4.8 (Apr 11 2006)
+ * Version      : v2.20.4.9 (Jul 16 2006)
  *
  * Authors:
  *      Atul Mukker             <Atul.Mukker@lsil.com>
@@ -720,6 +720,7 @@ megaraid_init_mbox(adapter_t *adapter)
         struct pci_dev          *pdev;
         mraid_device_t          *raid_dev;
         int                     i;
+        uint32_t                magic64;
 
 
         adapter->ito    = MBOX_TIMEOUT;
@@ -863,12 +864,33 @@ megaraid_init_mbox(adapter_t *adapter)
 
         // Set the DMA mask to 64-bit. All supported controllers as capable of
         // DMA in this range
-        if (pci_set_dma_mask(adapter->pdev, DMA_64BIT_MASK) != 0) {
-
-                con_log(CL_ANN, (KERN_WARNING
-                        "megaraid: could not set DMA mask for 64-bit.\n"));
+        pci_read_config_dword(adapter->pdev, PCI_CONF_AMISIG64, &magic64);
+
+        if (((magic64 == HBA_SIGNATURE_64_BIT) &&
+                ((adapter->pdev->subsystem_device !=
+                PCI_SUBSYS_ID_MEGARAID_SATA_150_6) ||
+                (adapter->pdev->subsystem_device !=
+                PCI_SUBSYS_ID_MEGARAID_SATA_150_4))) ||
+                (adapter->pdev->vendor == PCI_VENDOR_ID_LSI_LOGIC &&
+                adapter->pdev->device == PCI_DEVICE_ID_VERDE) ||
+                (adapter->pdev->vendor == PCI_VENDOR_ID_LSI_LOGIC &&
+                adapter->pdev->device == PCI_DEVICE_ID_DOBSON) ||
+                (adapter->pdev->vendor == PCI_VENDOR_ID_LSI_LOGIC &&
+                adapter->pdev->device == PCI_DEVICE_ID_LINDSAY) ||
+                (adapter->pdev->vendor == PCI_VENDOR_ID_DELL &&
+                adapter->pdev->device == PCI_DEVICE_ID_PERC4_DI_EVERGLADES) ||
+                (adapter->pdev->vendor == PCI_VENDOR_ID_DELL &&
+                adapter->pdev->device == PCI_DEVICE_ID_PERC4E_DI_KOBUK)) {
+                if (pci_set_dma_mask(adapter->pdev, DMA_64BIT_MASK)) {
+                        con_log(CL_ANN, (KERN_WARNING
+                                "megaraid: DMA mask for 64-bit failed\n"));
 
-                goto out_free_sysfs_res;
+                        if (pci_set_dma_mask (adapter->pdev, DMA_32BIT_MASK)) {
+                                con_log(CL_ANN, (KERN_WARNING
+                                        "megaraid: 32-bit DMA mask failed\n"));
+                                goto out_free_sysfs_res;
+                        }
+                }
         }
 
         // setup tasklet for DPC
@@ -1622,6 +1644,14 @@ megaraid_mbox_build_cmd(adapter_t *adapter, struct scsi_cmnd *scp, int *busy)
                                 rdev->last_disp |= (1L << SCP2CHANNEL(scp));
                         }
 
+                        if (scp->cmnd[1] & MEGA_SCSI_INQ_EVPD) {
+                                scp->sense_buffer[0] = 0x70;
+                                scp->sense_buffer[2] = ILLEGAL_REQUEST;
+                                scp->sense_buffer[12] = MEGA_INVALID_FIELD_IN_CDB;
+                                scp->result = CHECK_CONDITION << 1;
+                                return NULL;
+                        }
+
                         /* Fall through */
 
                 case READ_CAPACITY:
diff --git a/drivers/scsi/megaraid/megaraid_mbox.h b/drivers/scsi/megaraid/megaraid_mbox.h
index 868fb0ec93e7..2b5a3285f799 100644
--- a/drivers/scsi/megaraid/megaraid_mbox.h
+++ b/drivers/scsi/megaraid/megaraid_mbox.h
@@ -21,8 +21,8 @@
 #include "megaraid_ioctl.h"
 
 
-#define MEGARAID_VERSION        "2.20.4.8"
-#define MEGARAID_EXT_VERSION    "(Release Date: Mon Apr 11 12:27:22 EST 2006)"
+#define MEGARAID_VERSION        "2.20.4.9"
+#define MEGARAID_EXT_VERSION    "(Release Date: Sun Jul 16 12:27:22 EST 2006)"
 
 
 /*
diff --git a/drivers/scsi/megaraid/megaraid_mm.c b/drivers/scsi/megaraid/megaraid_mm.c
index e8f534fb336b..d85b9a8f1b8d 100644
--- a/drivers/scsi/megaraid/megaraid_mm.c
+++ b/drivers/scsi/megaraid/megaraid_mm.c
@@ -10,7 +10,7 @@
  *         2 of the License, or (at your option) any later version.
  *
  * FILE         : megaraid_mm.c
- * Version      : v2.20.2.6 (Mar 7 2005)
+ * Version      : v2.20.2.7 (Jul 16 2006)
  *
  * Common management module
  */
diff --git a/drivers/scsi/megaraid/megaraid_mm.h b/drivers/scsi/megaraid/megaraid_mm.h
index 3d9e67d6849d..c8762b2b8ed1 100644
--- a/drivers/scsi/megaraid/megaraid_mm.h
+++ b/drivers/scsi/megaraid/megaraid_mm.h
@@ -27,9 +27,9 @@
 #include "megaraid_ioctl.h"
 
 
-#define LSI_COMMON_MOD_VERSION  "2.20.2.6"
+#define LSI_COMMON_MOD_VERSION  "2.20.2.7"
 #define LSI_COMMON_MOD_EXT_VERSION      \
-                "(Release Date: Mon Mar 7 00:01:03 EST 2005)"
+                "(Release Date: Sun Jul 16 00:01:03 EST 2006)"
 
 
 #define LSI_DBGLVL                      dbglevel
diff --git a/drivers/scsi/pdc_adma.c b/drivers/scsi/pdc_adma.c
index d1f38c32aa15..efc8fff1d250 100644
--- a/drivers/scsi/pdc_adma.c
+++ b/drivers/scsi/pdc_adma.c
@@ -183,7 +183,8 @@ static struct ata_port_info adma_port_info[] = {
         {
                 .sht            = &adma_ata_sht,
                 .host_flags     = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SRST |
-                                  ATA_FLAG_NO_LEGACY | ATA_FLAG_MMIO,
+                                  ATA_FLAG_NO_LEGACY | ATA_FLAG_MMIO |
+                                  ATA_FLAG_PIO_POLLING,
                 .pio_mask       = 0x10, /* pio4 */
                 .udma_mask      = 0x1f, /* udma0-4 */
                 .port_ops       = &adma_ata_ops,
diff --git a/drivers/scsi/qla2xxx/qla_def.h b/drivers/scsi/qla2xxx/qla_def.h
index 139ea0e27fd7..0930260aec2c 100644
--- a/drivers/scsi/qla2xxx/qla_def.h
+++ b/drivers/scsi/qla2xxx/qla_def.h
@@ -487,6 +487,7 @@ typedef struct {
 #define MBA_IP_RCV_BUFFER_EMPTY 0x8026  /* IP receive buffer queue empty. */
 #define MBA_IP_HDR_DATA_SPLIT   0x8027  /* IP header/data splitting feature */
                                         /* used. */
+#define MBA_TRACE_NOTIFICATION  0x8028  /* Trace/Diagnostic notification. */
 #define MBA_POINT_TO_POINT      0x8030  /* Point to point mode. */
 #define MBA_CMPLT_1_16BIT       0x8031  /* Completion 1 16bit IOSB. */
 #define MBA_CMPLT_2_16BIT       0x8032  /* Completion 2 16bit IOSB. */
diff --git a/drivers/scsi/qla2xxx/qla_init.c b/drivers/scsi/qla2xxx/qla_init.c
index 9758dba95542..859649160caa 100644
--- a/drivers/scsi/qla2xxx/qla_init.c
+++ b/drivers/scsi/qla2xxx/qla_init.c
@@ -3063,6 +3063,7 @@ qla2x00_update_fcports(scsi_qla_host_t *ha)
 int
 qla2x00_abort_isp(scsi_qla_host_t *ha)
 {
+        int rval;
         unsigned long flags = 0;
         uint16_t       cnt;
         srb_t          *sp;
@@ -3119,6 +3120,16 @@ qla2x00_abort_isp(scsi_qla_host_t *ha)
 
                         ha->isp_abort_cnt = 0;
                         clear_bit(ISP_ABORT_RETRY, &ha->dpc_flags);
+
+                        if (ha->eft) {
+                                rval = qla2x00_trace_control(ha, TC_ENABLE,
+                                    ha->eft_dma, EFT_NUM_BUFFERS);
+                                if (rval) {
+                                        qla_printk(KERN_WARNING, ha,
+                                            "Unable to reinitialize EFT "
+                                            "(%d).\n", rval);
+                                }
+                        }
                 } else {        /* failed the ISP abort */
                         ha->flags.online = 1;
                         if (test_bit(ISP_ABORT_RETRY, &ha->dpc_flags)) {
diff --git a/drivers/scsi/qla2xxx/qla_iocb.c b/drivers/scsi/qla2xxx/qla_iocb.c
index 2b60a27eff0b..c5b3c610a32a 100644
--- a/drivers/scsi/qla2xxx/qla_iocb.c
+++ b/drivers/scsi/qla2xxx/qla_iocb.c
@@ -471,6 +471,7 @@ __qla2x00_marker(scsi_qla_host_t *ha, uint16_t loop_id, uint16_t lun,
                         mrk24->nport_handle = cpu_to_le16(loop_id);
                         mrk24->lun[1] = LSB(lun);
                         mrk24->lun[2] = MSB(lun);
+                        host_to_fcp_swap(mrk24->lun, sizeof(mrk24->lun));
                 } else {
                         SET_TARGET_ID(ha, mrk->target, loop_id);
                         mrk->lun = cpu_to_le16(lun);
diff --git a/drivers/scsi/qla2xxx/qla_isr.c b/drivers/scsi/qla2xxx/qla_isr.c
index 795bf15b1b8f..de0613135f70 100644
--- a/drivers/scsi/qla2xxx/qla_isr.c
+++ b/drivers/scsi/qla2xxx/qla_isr.c
@@ -587,6 +587,11 @@ qla2x00_async_event(scsi_qla_host_t *ha, uint16_t *mb)
                 DEBUG2(printk("scsi(%ld): Discard RND Frame -- %04x %04x "
                     "%04x.\n", ha->host_no, mb[1], mb[2], mb[3]));
                 break;
+
+        case MBA_TRACE_NOTIFICATION:
+                DEBUG2(printk("scsi(%ld): Trace Notification -- %04x %04x.\n",
+                ha->host_no, mb[1], mb[2]));
+                break;
         }
 }
 
diff --git a/drivers/scsi/qla2xxx/qla_os.c b/drivers/scsi/qla2xxx/qla_os.c
index ec7ebb6037e6..65cbe2f5eea2 100644
--- a/drivers/scsi/qla2xxx/qla_os.c
+++ b/drivers/scsi/qla2xxx/qla_os.c
@@ -744,7 +744,6 @@ qla2xxx_eh_device_reset(struct scsi_cmnd *cmd)
 {
         scsi_qla_host_t *ha = to_qla_host(cmd->device->host);
         fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
-        srb_t *sp;
         int ret;
         unsigned int id, lun;
         unsigned long serial;
@@ -755,8 +754,7 @@ qla2xxx_eh_device_reset(struct scsi_cmnd *cmd)
         lun = cmd->device->lun;
         serial = cmd->serial_number;
 
-        sp = (srb_t *) CMD_SP(cmd);
-        if (!sp || !fcport)
+        if (!fcport)
                 return ret;
 
         qla_printk(KERN_INFO, ha,
@@ -875,7 +873,6 @@ qla2xxx_eh_bus_reset(struct scsi_cmnd *cmd)
 {
         scsi_qla_host_t *ha = to_qla_host(cmd->device->host);
         fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
-        srb_t *sp;
         int ret;
         unsigned int id, lun;
         unsigned long serial;
@@ -886,8 +883,7 @@ qla2xxx_eh_bus_reset(struct scsi_cmnd *cmd)
         lun = cmd->device->lun;
         serial = cmd->serial_number;
 
-        sp = (srb_t *) CMD_SP(cmd);
-        if (!sp || !fcport)
+        if (!fcport)
                 return ret;
 
         qla_printk(KERN_INFO, ha,
@@ -936,7 +932,6 @@ qla2xxx_eh_host_reset(struct scsi_cmnd *cmd)
 {
         scsi_qla_host_t *ha = to_qla_host(cmd->device->host);
         fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
-        srb_t *sp;
         int ret;
         unsigned int id, lun;
         unsigned long serial;
@@ -947,8 +942,7 @@ qla2xxx_eh_host_reset(struct scsi_cmnd *cmd)
         lun = cmd->device->lun;
         serial = cmd->serial_number;
 
-        sp = (srb_t *) CMD_SP(cmd);
-        if (!sp || !fcport)
+        if (!fcport)
                 return ret;
 
         qla_printk(KERN_INFO, ha,
@@ -2244,9 +2238,6 @@ qla2x00_do_dpc(void *data)
 
                         next_loopid = 0;
                         list_for_each_entry(fcport, &ha->fcports, list) {
-                                if (fcport->port_type != FCT_TARGET)
-                                        continue;
-
                                 /*
                                  * If the port is not ONLINE then try to login
                                  * to it if we haven't run out of retries.
diff --git a/drivers/scsi/qla2xxx/qla_version.h b/drivers/scsi/qla2xxx/qla_version.h
index d2d683440659..971259032ef7 100644
--- a/drivers/scsi/qla2xxx/qla_version.h
+++ b/drivers/scsi/qla2xxx/qla_version.h
@@ -7,9 +7,9 @@
 /*
  * Driver version
  */
-#define QLA2XXX_VERSION      "8.01.05-k3"
+#define QLA2XXX_VERSION      "8.01.07-k1"
 
 #define QLA_DRIVER_MAJOR_VER    8
 #define QLA_DRIVER_MINOR_VER    1
-#define QLA_DRIVER_PATCH_VER    5
+#define QLA_DRIVER_PATCH_VER    7
 #define QLA_DRIVER_BETA_VER     0
diff --git a/drivers/scsi/sata_via.c b/drivers/scsi/sata_via.c
index 03baec2191bf..01d40369a8a5 100644
--- a/drivers/scsi/sata_via.c
+++ b/drivers/scsi/sata_via.c
@@ -74,6 +74,7 @@ enum {
 static int svia_init_one (struct pci_dev *pdev, const struct pci_device_id *ent);
 static u32 svia_scr_read (struct ata_port *ap, unsigned int sc_reg);
 static void svia_scr_write (struct ata_port *ap, unsigned int sc_reg, u32 val);
+static void vt6420_error_handler(struct ata_port *ap);
 
 static const struct pci_device_id svia_pci_tbl[] = {
         { 0x1106, 0x3149, PCI_ANY_ID, PCI_ANY_ID, 0, 0, vt6420 },
@@ -107,7 +108,38 @@ static struct scsi_host_template svia_sht = {
         .bios_param             = ata_std_bios_param,
 };
 
-static const struct ata_port_operations svia_sata_ops = {
+static const struct ata_port_operations vt6420_sata_ops = {
+        .port_disable           = ata_port_disable,
+
+        .tf_load                = ata_tf_load,
+        .tf_read                = ata_tf_read,
+        .check_status           = ata_check_status,
+        .exec_command           = ata_exec_command,
+        .dev_select             = ata_std_dev_select,
+
+        .bmdma_setup            = ata_bmdma_setup,
+        .bmdma_start            = ata_bmdma_start,
+        .bmdma_stop             = ata_bmdma_stop,
+        .bmdma_status           = ata_bmdma_status,
+
+        .qc_prep                = ata_qc_prep,
+        .qc_issue               = ata_qc_issue_prot,
+        .data_xfer              = ata_pio_data_xfer,
+
+        .freeze                 = ata_bmdma_freeze,
+        .thaw                   = ata_bmdma_thaw,
+        .error_handler          = vt6420_error_handler,
+        .post_internal_cmd      = ata_bmdma_post_internal_cmd,
+
+        .irq_handler            = ata_interrupt,
+        .irq_clear              = ata_bmdma_irq_clear,
+
+        .port_start             = ata_port_start,
+        .port_stop              = ata_port_stop,
+        .host_stop              = ata_host_stop,
+};
+
+static const struct ata_port_operations vt6421_sata_ops = {
         .port_disable           = ata_port_disable,
 
         .tf_load                = ata_tf_load,
@@ -141,13 +173,13 @@ static const struct ata_port_operations svia_sata_ops = {
         .host_stop              = ata_host_stop,
 };
 
-static struct ata_port_info svia_port_info = {
+static struct ata_port_info vt6420_port_info = {
         .sht            = &svia_sht,
         .host_flags     = ATA_FLAG_SATA | ATA_FLAG_NO_LEGACY,
         .pio_mask       = 0x1f,
         .mwdma_mask     = 0x07,
         .udma_mask      = 0x7f,
-        .port_ops       = &svia_sata_ops,
+        .port_ops       = &vt6420_sata_ops,
 };
 
 MODULE_AUTHOR("Jeff Garzik");
@@ -170,6 +202,81 @@ static void svia_scr_write (struct ata_port *ap, unsigned int sc_reg, u32 val)
         outl(val, ap->ioaddr.scr_addr + (4 * sc_reg));
 }
 
+/**
+ *      vt6420_prereset - prereset for vt6420
+ *      @ap: target ATA port
+ *
+ *      SCR registers on vt6420 are pieces of shit and may hang the
+ *      whole machine completely if accessed with the wrong timing.
+ *      To avoid such catastrophe, vt6420 doesn't provide generic SCR
+ *      access operations, but uses SStatus and SControl only during
+ *      boot probing in controlled way.
+ *
+ *      As the old (pre EH update) probing code is proven to work, we
+ *      strictly follow the access pattern.
+ *
+ *      LOCKING:
+ *      Kernel thread context (may sleep)
+ *
+ *      RETURNS:
+ *      0 on success, -errno otherwise.
+ */
+static int vt6420_prereset(struct ata_port *ap)
+{
+        struct ata_eh_context *ehc = &ap->eh_context;
+        unsigned long timeout = jiffies + (HZ * 5);
+        u32 sstatus, scontrol;
+        int online;
+
+        /* don't do any SCR stuff if we're not loading */
+        if (!ATA_PFLAG_LOADING)
+                goto skip_scr;
+
+        /* Resume phy.  This is the old resume sequence from
+         * __sata_phy_reset().
+         */
+        svia_scr_write(ap, SCR_CONTROL, 0x300);
+        svia_scr_read(ap, SCR_CONTROL); /* flush */
+
+        /* wait for phy to become ready, if necessary */
+        do {
+                msleep(200);
+                if ((svia_scr_read(ap, SCR_STATUS) & 0xf) != 1)
+                        break;
+        } while (time_before(jiffies, timeout));
+
+        /* open code sata_print_link_status() */
+        sstatus = svia_scr_read(ap, SCR_STATUS);
+        scontrol = svia_scr_read(ap, SCR_CONTROL);
+
+        online = (sstatus & 0xf) == 0x3;
+
+        ata_port_printk(ap, KERN_INFO,
+                        "SATA link %s 1.5 Gbps (SStatus %X SControl %X)\n",
+                        online ? "up" : "down", sstatus, scontrol);
+
+        /* SStatus is read one more time */
+        svia_scr_read(ap, SCR_STATUS);
+
+        if (!online) {
+                /* tell EH to bail */
+                ehc->i.action &= ~ATA_EH_RESET_MASK;
+                return 0;
+        }
+
+ skip_scr:
+        /* wait for !BSY */
+        ata_busy_sleep(ap, ATA_TMOUT_BOOT_QUICK, ATA_TMOUT_BOOT);
+
+        return 0;
+}
+
+static void vt6420_error_handler(struct ata_port *ap)
+{
+        return ata_bmdma_drive_eh(ap, vt6420_prereset, ata_std_softreset,
+                                  NULL, ata_std_postreset);
+}
+
 static const unsigned int svia_bar_sizes[] = {
         8, 4, 8, 4, 16, 256
 };
@@ -210,7 +317,7 @@ static void vt6421_init_addrs(struct ata_probe_ent *probe_ent,
 static struct ata_probe_ent *vt6420_init_probe_ent(struct pci_dev *pdev)
 {
         struct ata_probe_ent *probe_ent;
-        struct ata_port_info *ppi = &svia_port_info;
+        struct ata_port_info *ppi = &vt6420_port_info;
 
         probe_ent = ata_pci_init_native_mode(pdev, &ppi, ATA_PORT_PRIMARY | ATA_PORT_SECONDARY);
         if (!probe_ent)
@@ -239,7 +346,7 @@ static struct ata_probe_ent *vt6421_init_probe_ent(struct pci_dev *pdev)
 
         probe_ent->sht          = &svia_sht;
         probe_ent->host_flags   = ATA_FLAG_SATA | ATA_FLAG_NO_LEGACY;
-        probe_ent->port_ops     = &svia_sata_ops;
+        probe_ent->port_ops     = &vt6421_sata_ops;
         probe_ent->n_ports      = N_PORTS;
         probe_ent->irq          = pdev->irq;
         probe_ent->irq_flags    = IRQF_SHARED;
diff --git a/drivers/scsi/scsi_error.c b/drivers/scsi/scsi_error.c
index 6a5b731bd5ba..a8ed5a22009d 100644
--- a/drivers/scsi/scsi_error.c
+++ b/drivers/scsi/scsi_error.c
@@ -460,7 +460,8 @@ static void scsi_eh_done(struct scsi_cmnd *scmd)
  * Return value:
  *    SUCCESS or FAILED or NEEDS_RETRY
  **/
-static int scsi_send_eh_cmnd(struct scsi_cmnd *scmd, int timeout, int copy_sense)
+static int scsi_send_eh_cmnd(struct scsi_cmnd *scmd, unsigned char *cmnd,
+                             int cmnd_size, int timeout, int copy_sense)
 {
         struct scsi_device *sdev = scmd->device;
         struct Scsi_Host *shost = sdev->host;
@@ -490,6 +491,9 @@ static int scsi_send_eh_cmnd(struct scsi_cmnd *scmd, int timeout, int copy_sense
         old_cmd_len = scmd->cmd_len;
         old_use_sg = scmd->use_sg;
 
+        memset(scmd->cmnd, 0, sizeof(scmd->cmnd));
+        memcpy(scmd->cmnd, cmnd, cmnd_size);
+
         if (copy_sense) {
                 int gfp_mask = GFP_ATOMIC;
 
@@ -610,8 +614,7 @@ static int scsi_request_sense(struct scsi_cmnd *scmd)
         static unsigned char generic_sense[6] =
                 {REQUEST_SENSE, 0, 0, 0, 252, 0};
 
-        memcpy(scmd->cmnd, generic_sense, sizeof(generic_sense));
-        return scsi_send_eh_cmnd(scmd, SENSE_TIMEOUT, 1);
+        return scsi_send_eh_cmnd(scmd, generic_sense, 6, SENSE_TIMEOUT, 1);
 }
 
 /**
@@ -736,10 +739,7 @@ static int scsi_eh_tur(struct scsi_cmnd *scmd)
         int retry_cnt = 1, rtn;
 
 retry_tur:
-        memcpy(scmd->cmnd, tur_command, sizeof(tur_command));
-
-
-        rtn = scsi_send_eh_cmnd(scmd, SENSE_TIMEOUT, 0);
+        rtn = scsi_send_eh_cmnd(scmd, tur_command, 6, SENSE_TIMEOUT, 0);
 
         SCSI_LOG_ERROR_RECOVERY(3, printk("%s: scmd %p rtn %x\n",
                 __FUNCTION__, scmd, rtn));
@@ -839,8 +839,8 @@ static int scsi_eh_try_stu(struct scsi_cmnd *scmd)
         if (scmd->device->allow_restart) {
                 int rtn;
 
-                memcpy(scmd->cmnd, stu_command, sizeof(stu_command));
-                rtn = scsi_send_eh_cmnd(scmd, START_UNIT_TIMEOUT, 0);
+                rtn = scsi_send_eh_cmnd(scmd, stu_command, 6,
+                                        START_UNIT_TIMEOUT, 0);
                 if (rtn == SUCCESS)
                         return 0;
         }
diff --git a/drivers/scsi/scsi_transport_iscsi.c b/drivers/scsi/scsi_transport_iscsi.c
index 7b9e8fa1a4e0..2ecd14188574 100644
--- a/drivers/scsi/scsi_transport_iscsi.c
+++ b/drivers/scsi/scsi_transport_iscsi.c
@@ -34,6 +34,7 @@
 #define ISCSI_SESSION_ATTRS 11
 #define ISCSI_CONN_ATTRS 11
 #define ISCSI_HOST_ATTRS 0
+#define ISCSI_TRANSPORT_VERSION "1.1-646"
 
 struct iscsi_internal {
         int daemon_pid;
@@ -634,13 +635,13 @@ mempool_zone_get_skb(struct mempool_zone *zone)
 }
 
 static int
-iscsi_broadcast_skb(struct mempool_zone *zone, struct sk_buff *skb)
+iscsi_broadcast_skb(struct mempool_zone *zone, struct sk_buff *skb, gfp_t gfp)
 {
         unsigned long flags;
         int rc;
 
         skb_get(skb);
-        rc = netlink_broadcast(nls, skb, 0, 1, GFP_KERNEL);
+        rc = netlink_broadcast(nls, skb, 0, 1, gfp);
         if (rc < 0) {
                 mempool_free(skb, zone->pool);
                 printk(KERN_ERR "iscsi: can not broadcast skb (%d)\n", rc);
@@ -749,7 +750,7 @@ void iscsi_conn_error(struct iscsi_cls_conn *conn, enum iscsi_err error)
         ev->r.connerror.cid = conn->cid;
         ev->r.connerror.sid = iscsi_conn_get_sid(conn);
 
-        iscsi_broadcast_skb(conn->z_error, skb);
+        iscsi_broadcast_skb(conn->z_error, skb, GFP_ATOMIC);
 
         dev_printk(KERN_INFO, &conn->dev, "iscsi: detected conn error (%d)\n",
                    error);
@@ -895,7 +896,7 @@ int iscsi_if_destroy_session_done(struct iscsi_cls_conn *conn)
          * this will occur if the daemon is not up, so we just warn
          * the user and when the daemon is restarted it will handle it
          */
-        rc = iscsi_broadcast_skb(conn->z_pdu, skb);
+        rc = iscsi_broadcast_skb(conn->z_pdu, skb, GFP_KERNEL);
         if (rc < 0)
                 dev_printk(KERN_ERR, &conn->dev, "Cannot notify userspace of "
                           "session destruction event. Check iscsi daemon\n");
@@ -958,7 +959,7 @@ int iscsi_if_create_session_done(struct iscsi_cls_conn *conn)
          * this will occur if the daemon is not up, so we just warn
          * the user and when the daemon is restarted it will handle it
          */
-        rc = iscsi_broadcast_skb(conn->z_pdu, skb);
+        rc = iscsi_broadcast_skb(conn->z_pdu, skb, GFP_KERNEL);
         if (rc < 0)
                 dev_printk(KERN_ERR, &conn->dev, "Cannot notify userspace of "
                           "session creation event. Check iscsi daemon\n");
@@ -1613,6 +1614,9 @@ static __init int iscsi_transport_init(void)
 {
         int err;
 
+        printk(KERN_INFO "Loading iSCSI transport class v%s.",
+                ISCSI_TRANSPORT_VERSION);
+
         err = class_register(&iscsi_transport_class);
         if (err)
                 return err;
@@ -1678,3 +1682,4 @@ MODULE_AUTHOR("Mike Christie <michaelc@cs.wisc.edu>, "
               "Alex Aizman <itn780@yahoo.com>");
 MODULE_DESCRIPTION("iSCSI Transport Interface");
 MODULE_LICENSE("GPL");
+MODULE_VERSION(ISCSI_TRANSPORT_VERSION);
diff --git a/drivers/scsi/sg.c b/drivers/scsi/sg.c
index 65eef33846bb..34f9343ed0af 100644
--- a/drivers/scsi/sg.c
+++ b/drivers/scsi/sg.c
@@ -18,8 +18,8 @@
  *
  */
 
-static int sg_version_num = 30533;      /* 2 digits for each component */
-#define SG_VERSION_STR "3.5.33"
+static int sg_version_num = 30534;      /* 2 digits for each component */
+#define SG_VERSION_STR "3.5.34"
 
 /*
  *  D. P. Gilbert (dgilbert@interlog.com, dougg@triode.net.au), notes:
@@ -60,7 +60,7 @@ static int sg_version_num = 30533;	/* 2 digits for each component */
 
 #ifdef CONFIG_SCSI_PROC_FS
 #include <linux/proc_fs.h>
-static char *sg_version_date = "20050908";
+static char *sg_version_date = "20060818";
 
 static int sg_proc_init(void);
 static void sg_proc_cleanup(void);
@@ -1164,7 +1164,7 @@ sg_vma_nopage(struct vm_area_struct *vma, unsigned long addr, int *type)
                 len = vma->vm_end - sa;
                 len = (len < sg->length) ? len : sg->length;
                 if (offset < len) {
-                        page = sg->page;
+                        page = virt_to_page(page_address(sg->page) + offset);
                         get_page(page); /* increment page count */
                         break;
                 }
diff --git a/drivers/scsi/sym53c8xx_2/sym_glue.c b/drivers/scsi/sym53c8xx_2/sym_glue.c
index 8c505076c0eb..739d3ef46a40 100644
--- a/drivers/scsi/sym53c8xx_2/sym_glue.c
+++ b/drivers/scsi/sym53c8xx_2/sym_glue.c
@@ -2084,7 +2084,7 @@ static struct pci_device_id sym2_id_table[] __devinitdata = {
         { PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_NCR_53C860,
           PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0UL },
         { PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_53C1510,
-          PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0UL },
+          PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_STORAGE_SCSI<<8,  0xffff00, 0UL },
         { PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_NCR_53C896,
           PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0UL },
         { PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_NCR_53C895,
diff --git a/drivers/serial/sunsab.c b/drivers/serial/sunsab.c
index dc673e1b6fd9..cfe20f730436 100644
--- a/drivers/serial/sunsab.c
+++ b/drivers/serial/sunsab.c
@@ -886,6 +886,15 @@ static int sunsab_console_setup(struct console *con, char *options)
         unsigned long flags;
         unsigned int baud, quot;
 
+        /*
+         * The console framework calls us for each and every port
+         * registered. Defer the console setup until the requested
+         * port has been properly discovered. A bit of a hack,
+         * though...
+         */
+        if (up->port.type != PORT_SUNSAB)
+                return -1;
+
         printk("Console: ttyS%d (SAB82532)\n",
                (sunsab_reg.minor - 64) + con->index);
 
diff --git a/drivers/serial/sunzilog.c b/drivers/serial/sunzilog.c
index 47bc3d57e019..d34f336d53d8 100644
--- a/drivers/serial/sunzilog.c
+++ b/drivers/serial/sunzilog.c
@@ -1146,6 +1146,9 @@ static int __init sunzilog_console_setup(struct console *con, char *options)
         unsigned long flags;
         int baud, brg;
 
+        if (up->port.type != PORT_SUNZILOG)
+                return -1;
+
         printk(KERN_INFO "Console: ttyS%d (SunZilog zs%d)\n",
                (sunzilog_reg.minor - 64) + con->index, con->index);
 
diff --git a/drivers/usb/misc/cypress_cy7c63.c b/drivers/usb/misc/cypress_cy7c63.c
index a4062a6adbb8..9c46746d5d00 100644
--- a/drivers/usb/misc/cypress_cy7c63.c
+++ b/drivers/usb/misc/cypress_cy7c63.c
@@ -208,7 +208,7 @@ static int cypress_probe(struct usb_interface *interface,
         /* allocate memory for our device state and initialize it */
         dev = kzalloc(sizeof(*dev), GFP_KERNEL);
         if (dev == NULL) {
-                dev_err(&dev->udev->dev, "Out of memory!\n");
+                dev_err(&interface->dev, "Out of memory!\n");
                 goto error;
         }
 
diff --git a/drivers/usb/serial/pl2303.c b/drivers/usb/serial/pl2303.c
index efbbc0adb89a..65e4d046951a 100644
--- a/drivers/usb/serial/pl2303.c
+++ b/drivers/usb/serial/pl2303.c
@@ -79,7 +79,6 @@ static struct usb_device_id id_table [] = {
         { USB_DEVICE(SAGEM_VENDOR_ID, SAGEM_PRODUCT_ID) },
         { USB_DEVICE(LEADTEK_VENDOR_ID, LEADTEK_9531_PRODUCT_ID) },
         { USB_DEVICE(SPEEDDRAGON_VENDOR_ID, SPEEDDRAGON_PRODUCT_ID) },
-        { USB_DEVICE(OTI_VENDOR_ID, OTI_PRODUCT_ID) },
         { USB_DEVICE(DATAPILOT_U2_VENDOR_ID, DATAPILOT_U2_PRODUCT_ID) },
         { USB_DEVICE(BELKIN_VENDOR_ID, BELKIN_PRODUCT_ID) },
         { }                                     /* Terminating entry */
diff --git a/drivers/usb/serial/pl2303.h b/drivers/usb/serial/pl2303.h
index a692ac66ca6c..55195e76eb6f 100644
--- a/drivers/usb/serial/pl2303.h
+++ b/drivers/usb/serial/pl2303.h
@@ -82,10 +82,6 @@
 #define SPEEDDRAGON_VENDOR_ID   0x0e55
 #define SPEEDDRAGON_PRODUCT_ID  0x110b
 
-/* Ours Technology Inc DKU-5 clone, chipset: Prolific Technology Inc */
-#define OTI_VENDOR_ID   0x0ea0
-#define OTI_PRODUCT_ID  0x6858
-
 /* DATAPILOT Universal-2 Phone Cable */
 #define DATAPILOT_U2_VENDOR_ID  0x0731
 #define DATAPILOT_U2_PRODUCT_ID 0x2003
diff --git a/drivers/usb/storage/unusual_devs.h b/drivers/usb/storage/unusual_devs.h
index fd158e063c06..4a803d69fa36 100644
--- a/drivers/usb/storage/unusual_devs.h
+++ b/drivers/usb/storage/unusual_devs.h
@@ -1261,7 +1261,7 @@ UNUSUAL_DEV(  0x0fce, 0xd008, 0x0000, 0x0000,
  * Tested on hardware version 1.10.
  * Entry is needed only for the initializer function override.
  */
-UNUSUAL_DEV(  0x1019, 0x0c55, 0x0000, 0x9999,
+UNUSUAL_DEV(  0x1019, 0x0c55, 0x0110, 0x0110,
                 "Desknote",
                 "UCR-61S2B",
                 US_SC_DEVICE, US_PR_DEVICE, usb_stor_ucr61s2b_init,
diff --git a/drivers/video/imacfb.c b/drivers/video/imacfb.c
index b485bece5fc9..18ea4a549105 100644
--- a/drivers/video/imacfb.c
+++ b/drivers/video/imacfb.c
@@ -71,10 +71,10 @@ static int set_system(struct dmi_system_id *id)
 static struct dmi_system_id __initdata dmi_system_table[] = {
         { set_system, "iMac4,1", {
           DMI_MATCH(DMI_BIOS_VENDOR,"Apple Computer, Inc."),
-          DMI_MATCH(DMI_BIOS_VERSION,"iMac4,1") }, (void*)M_I17},
+          DMI_MATCH(DMI_PRODUCT_NAME,"iMac4,1") }, (void*)M_I17},
         { set_system, "MacBookPro1,1", {
           DMI_MATCH(DMI_BIOS_VENDOR,"Apple Computer, Inc."),
-          DMI_MATCH(DMI_BIOS_VERSION,"MacBookPro1,1") }, (void*)M_I17},
+          DMI_MATCH(DMI_PRODUCT_NAME,"MacBookPro1,1") }, (void*)M_I17},
         { set_system, "MacBook1,1", {
           DMI_MATCH(DMI_BIOS_VENDOR,"Apple Computer, Inc."),
           DMI_MATCH(DMI_PRODUCT_NAME,"MacBook1,1")}, (void *)M_MACBOOK},
diff --git a/drivers/video/matrox/g450_pll.c b/drivers/video/matrox/g450_pll.c
index 440272ad10e7..7c76e079ca7d 100644
--- a/drivers/video/matrox/g450_pll.c
+++ b/drivers/video/matrox/g450_pll.c
@@ -331,7 +331,15 @@ static int __g450_setclk(WPMINFO unsigned int fout, unsigned int pll,
                                         tmp |= M1064_XPIXCLKCTRL_PLL_UP;
                                 }
                                 matroxfb_DAC_out(PMINFO M1064_XPIXCLKCTRL, tmp);
+#ifdef __powerpc__
+                                /* This is necessary to avoid jitter on PowerPC
+                                 * (OpenFirmware) systems, but apparently
+                                 * introduces jitter, at least on a x86-64
+                                 * using DVI.
+                                 * A simple workaround is disable for non-PPC.
+                                 */
                                 matroxfb_DAC_out(PMINFO M1064_XDVICLKCTRL, 0);
+#endif /* __powerpc__ */
                                 matroxfb_DAC_out(PMINFO M1064_XPWRCTRL, xpwrctrl);
 
                                 matroxfb_DAC_unlock_irqrestore(flags);
diff --git a/fs/block_dev.c b/fs/block_dev.c
index 37534573960b..045f98854f14 100644
--- a/fs/block_dev.c
+++ b/fs/block_dev.c
@@ -884,6 +884,61 @@ void bd_set_size(struct block_device *bdev, loff_t size)
 }
 EXPORT_SYMBOL(bd_set_size);
 
+static int __blkdev_put(struct block_device *bdev, unsigned int subclass)
+{
+        int ret = 0;
+        struct inode *bd_inode = bdev->bd_inode;
+        struct gendisk *disk = bdev->bd_disk;
+
+        mutex_lock_nested(&bdev->bd_mutex, subclass);
+        lock_kernel();
+        if (!--bdev->bd_openers) {
+                sync_blockdev(bdev);
+                kill_bdev(bdev);
+        }
+        if (bdev->bd_contains == bdev) {
+                if (disk->fops->release)
+                        ret = disk->fops->release(bd_inode, NULL);
+        } else {
+                mutex_lock_nested(&bdev->bd_contains->bd_mutex,
+                                  subclass + 1);
+                bdev->bd_contains->bd_part_count--;
+                mutex_unlock(&bdev->bd_contains->bd_mutex);
+        }
+        if (!bdev->bd_openers) {
+                struct module *owner = disk->fops->owner;
+
+                put_disk(disk);
+                module_put(owner);
+
+                if (bdev->bd_contains != bdev) {
+                        kobject_put(&bdev->bd_part->kobj);
+                        bdev->bd_part = NULL;
+                }
+                bdev->bd_disk = NULL;
+                bdev->bd_inode->i_data.backing_dev_info = &default_backing_dev_info;
+                if (bdev != bdev->bd_contains)
+                        __blkdev_put(bdev->bd_contains, subclass + 1);
+                bdev->bd_contains = NULL;
+        }
+        unlock_kernel();
+        mutex_unlock(&bdev->bd_mutex);
+        bdput(bdev);
+        return ret;
+}
+
+int blkdev_put(struct block_device *bdev)
+{
+        return __blkdev_put(bdev, BD_MUTEX_NORMAL);
+}
+EXPORT_SYMBOL(blkdev_put);
+
+int blkdev_put_partition(struct block_device *bdev)
+{
+        return __blkdev_put(bdev, BD_MUTEX_PARTITION);
+}
+EXPORT_SYMBOL(blkdev_put_partition);
+
 static int
 blkdev_get_whole(struct block_device *bdev, mode_t mode, unsigned flags);
 
@@ -980,7 +1035,7 @@ out_first:
         bdev->bd_disk = NULL;
         bdev->bd_inode->i_data.backing_dev_info = &default_backing_dev_info;
         if (bdev != bdev->bd_contains)
-                blkdev_put(bdev->bd_contains);
+                __blkdev_put(bdev->bd_contains, BD_MUTEX_WHOLE);
         bdev->bd_contains = NULL;
         put_disk(disk);
         module_put(owner);
@@ -1079,63 +1134,6 @@ static int blkdev_open(struct inode * inode, struct file * filp)
         return res;
 }
 
-static int __blkdev_put(struct block_device *bdev, unsigned int subclass)
-{
-        int ret = 0;
-        struct inode *bd_inode = bdev->bd_inode;
-        struct gendisk *disk = bdev->bd_disk;
-
-        mutex_lock_nested(&bdev->bd_mutex, subclass);
-        lock_kernel();
-        if (!--bdev->bd_openers) {
-                sync_blockdev(bdev);
-                kill_bdev(bdev);
-        }
-        if (bdev->bd_contains == bdev) {
-                if (disk->fops->release)
-                        ret = disk->fops->release(bd_inode, NULL);
-        } else {
-                mutex_lock_nested(&bdev->bd_contains->bd_mutex,
-                                  subclass + 1);
-                bdev->bd_contains->bd_part_count--;
-                mutex_unlock(&bdev->bd_contains->bd_mutex);
-        }
-        if (!bdev->bd_openers) {
-                struct module *owner = disk->fops->owner;
-
-                put_disk(disk);
-                module_put(owner);
-
-                if (bdev->bd_contains != bdev) {
-                        kobject_put(&bdev->bd_part->kobj);
-                        bdev->bd_part = NULL;
-                }
-                bdev->bd_disk = NULL;
-                bdev->bd_inode->i_data.backing_dev_info = &default_backing_dev_info;
-                if (bdev != bdev->bd_contains)
-                        __blkdev_put(bdev->bd_contains, subclass + 1);
-                bdev->bd_contains = NULL;
-        }
-        unlock_kernel();
-        mutex_unlock(&bdev->bd_mutex);
-        bdput(bdev);
-        return ret;
-}
-
-int blkdev_put(struct block_device *bdev)
-{
-        return __blkdev_put(bdev, BD_MUTEX_NORMAL);
-}
-
-EXPORT_SYMBOL(blkdev_put);
-
-int blkdev_put_partition(struct block_device *bdev)
-{
-        return __blkdev_put(bdev, BD_MUTEX_PARTITION);
-}
-
-EXPORT_SYMBOL(blkdev_put_partition);
-
 static int blkdev_close(struct inode * inode, struct file * filp)
 {
         struct block_device *bdev = I_BDEV(filp->f_mapping->host);
diff --git a/fs/eventpoll.c b/fs/eventpoll.c
index 19ffb043abbc..3a3567433b92 100644
--- a/fs/eventpoll.c
+++ b/fs/eventpoll.c
@@ -1168,7 +1168,7 @@ static int ep_unlink(struct eventpoll *ep, struct epitem *epi)
 eexit_1:
 
         DNPRINTK(3, (KERN_INFO "[%p] eventpoll: ep_unlink(%p, %p) = %d\n",
-                     current, ep, epi->file, error));
+                     current, ep, epi->ffd.file, error));
 
         return error;
 }
@@ -1236,7 +1236,7 @@ static int ep_poll_callback(wait_queue_t *wait, unsigned mode, int sync, void *k
         struct eventpoll *ep = epi->ep;
 
         DNPRINTK(3, (KERN_INFO "[%p] eventpoll: poll_callback(%p) epi=%p ep=%p\n",
-                     current, epi->file, epi, ep));
+                     current, epi->ffd.file, epi, ep));
 
         write_lock_irqsave(&ep->lock, flags);
 
diff --git a/fs/exec.c b/fs/exec.c
index 8344ba73a2a6..54135df2a966 100644
--- a/fs/exec.c
+++ b/fs/exec.c
@@ -486,8 +486,6 @@ struct file *open_exec(const char *name)
                 if (!(nd.mnt->mnt_flags & MNT_NOEXEC) &&
                     S_ISREG(inode->i_mode)) {
                         int err = vfs_permission(&nd, MAY_EXEC);
-                        if (!err && !(inode->i_mode & 0111))
-                                err = -EACCES;
                         file = ERR_PTR(err);
                         if (!err) {
                                 file = nameidata_to_filp(&nd, O_RDONLY);
@@ -753,7 +751,7 @@ no_thread_group:
 
                 write_lock_irq(&tasklist_lock);
                 spin_lock(&oldsighand->siglock);
-                spin_lock(&newsighand->siglock);
+                spin_lock_nested(&newsighand->siglock, SINGLE_DEPTH_NESTING);
 
                 rcu_assign_pointer(current->sighand, newsighand);
                 recalc_sigpending();
@@ -922,12 +920,6 @@ int prepare_binprm(struct linux_binprm *bprm)
         int retval;
 
         mode = inode->i_mode;
-        /*
-         * Check execute perms again - if the caller has CAP_DAC_OVERRIDE,
-         * generic_permission lets a non-executable through
-         */
-        if (!(mode & 0111))     /* with at least _one_ execute bit set */
-                return -EACCES;
         if (bprm->file->f_op == NULL)
                 return -EACCES;
 
diff --git a/fs/ext2/super.c b/fs/ext2/super.c
index f2702cda9779..681dea8f9532 100644
--- a/fs/ext2/super.c
+++ b/fs/ext2/super.c
@@ -775,7 +775,7 @@ static int ext2_fill_super(struct super_block *sb, void *data, int silent)
         if (EXT2_INODE_SIZE(sb) == 0)
                 goto cantfind_ext2;
         sbi->s_inodes_per_block = sb->s_blocksize / EXT2_INODE_SIZE(sb);
-        if (sbi->s_inodes_per_block == 0)
+        if (sbi->s_inodes_per_block == 0 || sbi->s_inodes_per_group == 0)
                 goto cantfind_ext2;
         sbi->s_itb_per_group = sbi->s_inodes_per_group /
                                         sbi->s_inodes_per_block;
diff --git a/fs/ext3/balloc.c b/fs/ext3/balloc.c
index a504a40d6d29..063d994bda0b 100644
--- a/fs/ext3/balloc.c
+++ b/fs/ext3/balloc.c
@@ -1269,12 +1269,12 @@ ext3_fsblk_t ext3_new_blocks(handle_t *handle, struct inode *inode,
                 goal = le32_to_cpu(es->s_first_data_block);
         group_no = (goal - le32_to_cpu(es->s_first_data_block)) /
                         EXT3_BLOCKS_PER_GROUP(sb);
+        goal_group = group_no;
+retry_alloc:
         gdp = ext3_get_group_desc(sb, group_no, &gdp_bh);
         if (!gdp)
                 goto io_error;
 
-        goal_group = group_no;
-retry:
         free_blocks = le16_to_cpu(gdp->bg_free_blocks_count);
         /*
          * if there is not enough free blocks to make a new resevation
@@ -1349,7 +1349,7 @@ retry:
         if (my_rsv) {
                 my_rsv = NULL;
                 group_no = goal_group;
-                goto retry;
+                goto retry_alloc;
         }
         /* No space left on the device */
         *errp = -ENOSPC;
diff --git a/fs/ioprio.c b/fs/ioprio.c
index 93aa5715f224..78b1deae3fa2 100644
--- a/fs/ioprio.c
+++ b/fs/ioprio.c
@@ -44,6 +44,9 @@ static int set_task_ioprio(struct task_struct *task, int ioprio)
         task->ioprio = ioprio;
 
         ioc = task->io_context;
+        /* see wmb() in current_io_context() */
+        smp_read_barrier_depends();
+
         if (ioc && ioc->set_ioprio)
                 ioc->set_ioprio(ioc, ioprio);
 
@@ -111,9 +114,9 @@ asmlinkage long sys_ioprio_set(int which, int who, int ioprio)
                                         continue;
                                 ret = set_task_ioprio(p, ioprio);
                                 if (ret)
-                                        break;
+                                        goto free_uid;
                         } while_each_thread(g, p);
-
+free_uid:
                         if (who)
                                 free_uid(user);
                         break;
@@ -137,6 +140,29 @@ out:
         return ret;
 }
 
+int ioprio_best(unsigned short aprio, unsigned short bprio)
+{
+        unsigned short aclass = IOPRIO_PRIO_CLASS(aprio);
+        unsigned short bclass = IOPRIO_PRIO_CLASS(bprio);
+
+        if (!ioprio_valid(aprio))
+                return bprio;
+        if (!ioprio_valid(bprio))
+                return aprio;
+
+        if (aclass == IOPRIO_CLASS_NONE)
+                aclass = IOPRIO_CLASS_BE;
+        if (bclass == IOPRIO_CLASS_NONE)
+                bclass = IOPRIO_CLASS_BE;
+
+        if (aclass == bclass)
+                return min(aprio, bprio);
+        if (aclass > bclass)
+                return bprio;
+        else
+                return aprio;
+}
+
 asmlinkage long sys_ioprio_get(int which, int who)
 {
         struct task_struct *g, *p;
diff --git a/fs/jbd/commit.c b/fs/jbd/commit.c
index 0971814c38b8..42da60784311 100644
--- a/fs/jbd/commit.c
+++ b/fs/jbd/commit.c
@@ -261,7 +261,7 @@ void journal_commit_transaction(journal_t *journal)
                         struct buffer_head *bh = jh2bh(jh);
 
                         jbd_lock_bh_state(bh);
-                        kfree(jh->b_committed_data);
+                        jbd_slab_free(jh->b_committed_data, bh->b_size);
                         jh->b_committed_data = NULL;
                         jbd_unlock_bh_state(bh);
                 }
@@ -745,14 +745,14 @@ restart_loop:
                  * Otherwise, we can just throw away the frozen data now.
                  */
                 if (jh->b_committed_data) {
-                        kfree(jh->b_committed_data);
+                        jbd_slab_free(jh->b_committed_data, bh->b_size);
                         jh->b_committed_data = NULL;
                         if (jh->b_frozen_data) {
                                 jh->b_committed_data = jh->b_frozen_data;
                                 jh->b_frozen_data = NULL;
                         }
                 } else if (jh->b_frozen_data) {
-                        kfree(jh->b_frozen_data);
+                        jbd_slab_free(jh->b_frozen_data, bh->b_size);
                         jh->b_frozen_data = NULL;
                 }
 
diff --git a/fs/jbd/journal.c b/fs/jbd/journal.c
index 8c9b28dff119..f66724ce443a 100644
--- a/fs/jbd/journal.c
+++ b/fs/jbd/journal.c
@@ -84,6 +84,7 @@ EXPORT_SYMBOL(journal_force_commit);
 
 static int journal_convert_superblock_v1(journal_t *, journal_superblock_t *);
 static void __journal_abort_soft (journal_t *journal, int errno);
+static int journal_create_jbd_slab(size_t slab_size);
 
 /*
  * Helper function used to manage commit timeouts
@@ -328,10 +329,10 @@ repeat:
                 char *tmp;
 
                 jbd_unlock_bh_state(bh_in);
-                tmp = jbd_rep_kmalloc(bh_in->b_size, GFP_NOFS);
+                tmp = jbd_slab_alloc(bh_in->b_size, GFP_NOFS);
                 jbd_lock_bh_state(bh_in);
                 if (jh_in->b_frozen_data) {
-                        kfree(tmp);
+                        jbd_slab_free(tmp, bh_in->b_size);
                         goto repeat;
                 }
 
@@ -1069,17 +1070,17 @@ static int load_superblock(journal_t *journal)
 int journal_load(journal_t *journal)
 {
         int err;
+        journal_superblock_t *sb;
 
         err = load_superblock(journal);
         if (err)
                 return err;
 
+        sb = journal->j_superblock;
         /* If this is a V2 superblock, then we have to check the
          * features flags on it. */
 
         if (journal->j_format_version >= 2) {
-                journal_superblock_t *sb = journal->j_superblock;
-
                 if ((sb->s_feature_ro_compat &
                      ~cpu_to_be32(JFS_KNOWN_ROCOMPAT_FEATURES)) ||
                     (sb->s_feature_incompat &
@@ -1090,6 +1091,13 @@ int journal_load(journal_t *journal)
                 }
         }
 
+        /*
+         * Create a slab for this blocksize
+         */
+        err = journal_create_jbd_slab(cpu_to_be32(sb->s_blocksize));
+        if (err)
+                return err;
+
         /* Let the recovery code check whether it needs to recover any
          * data from the journal. */
         if (journal_recover(journal))
@@ -1612,6 +1620,77 @@ void * __jbd_kmalloc (const char *where, size_t size, gfp_t flags, int retry)
 }
 
 /*
+ * jbd slab management: create 1k, 2k, 4k, 8k slabs as needed
+ * and allocate frozen and commit buffers from these slabs.
+ *
+ * Reason for doing this is to avoid, SLAB_DEBUG - since it could
+ * cause bh to cross page boundary.
+ */
+
+#define JBD_MAX_SLABS 5
+#define JBD_SLAB_INDEX(size)  (size >> 11)
+
+static kmem_cache_t *jbd_slab[JBD_MAX_SLABS];
+static const char *jbd_slab_names[JBD_MAX_SLABS] = {
+        "jbd_1k", "jbd_2k", "jbd_4k", NULL, "jbd_8k"
+};
+
+static void journal_destroy_jbd_slabs(void)
+{
+        int i;
+
+        for (i = 0; i < JBD_MAX_SLABS; i++) {
+                if (jbd_slab[i])
+                        kmem_cache_destroy(jbd_slab[i]);
+                jbd_slab[i] = NULL;
+        }
+}
+
+static int journal_create_jbd_slab(size_t slab_size)
+{
+        int i = JBD_SLAB_INDEX(slab_size);
+
+        BUG_ON(i >= JBD_MAX_SLABS);
+
+        /*
+         * Check if we already have a slab created for this size
+         */
+        if (jbd_slab[i])
+                return 0;
+
+        /*
+         * Create a slab and force alignment to be same as slabsize -
+         * this will make sure that allocations won't cross the page
+         * boundary.
+         */
+        jbd_slab[i] = kmem_cache_create(jbd_slab_names[i],
+                                slab_size, slab_size, 0, NULL, NULL);
+        if (!jbd_slab[i]) {
+                printk(KERN_EMERG "JBD: no memory for jbd_slab cache\n");
+                return -ENOMEM;
+        }
+        return 0;
+}
+
+void * jbd_slab_alloc(size_t size, gfp_t flags)
+{
+        int idx;
+
+        idx = JBD_SLAB_INDEX(size);
+        BUG_ON(jbd_slab[idx] == NULL);
+        return kmem_cache_alloc(jbd_slab[idx], flags | __GFP_NOFAIL);
+}
+
+void jbd_slab_free(void *ptr,  size_t size)
+{
+        int idx;
+
+        idx = JBD_SLAB_INDEX(size);
+        BUG_ON(jbd_slab[idx] == NULL);
+        kmem_cache_free(jbd_slab[idx], ptr);
+}
+
+/*
  * Journal_head storage management
  */
 static kmem_cache_t *journal_head_cache;
@@ -1799,13 +1878,13 @@ static void __journal_remove_journal_head(struct buffer_head *bh)
                                 printk(KERN_WARNING "%s: freeing "
                                                 "b_frozen_data\n",
                                                 __FUNCTION__);
-                                kfree(jh->b_frozen_data);
+                                jbd_slab_free(jh->b_frozen_data, bh->b_size);
                         }
                         if (jh->b_committed_data) {
                                 printk(KERN_WARNING "%s: freeing "
                                                 "b_committed_data\n",
                                                 __FUNCTION__);
-                                kfree(jh->b_committed_data);
+                                jbd_slab_free(jh->b_committed_data, bh->b_size);
                         }
                         bh->b_private = NULL;
                         jh->b_bh = NULL;        /* debug, really */
@@ -1961,6 +2040,7 @@ static void journal_destroy_caches(void)
         journal_destroy_revoke_caches();
         journal_destroy_journal_head_cache();
         journal_destroy_handle_cache();
+        journal_destroy_jbd_slabs();
 }
 
 static int __init journal_init(void)
diff --git a/fs/jbd/transaction.c b/fs/jbd/transaction.c
index 508b2ea91f43..de2e4cbbf79a 100644
--- a/fs/jbd/transaction.c
+++ b/fs/jbd/transaction.c
@@ -666,8 +666,9 @@ repeat:
                         if (!frozen_buffer) {
                                 JBUFFER_TRACE(jh, "allocate memory for buffer");
                                 jbd_unlock_bh_state(bh);
-                                frozen_buffer = jbd_kmalloc(jh2bh(jh)->b_size,
-                                                            GFP_NOFS);
+                                frozen_buffer =
+                                        jbd_slab_alloc(jh2bh(jh)->b_size,
+                                                         GFP_NOFS);
                                 if (!frozen_buffer) {
                                         printk(KERN_EMERG
                                                "%s: OOM for frozen_buffer\n",
@@ -879,7 +880,7 @@ int journal_get_undo_access(handle_t *handle, struct buffer_head *bh)
 
 repeat:
         if (!jh->b_committed_data) {
-                committed_data = jbd_kmalloc(jh2bh(jh)->b_size, GFP_NOFS);
+                committed_data = jbd_slab_alloc(jh2bh(jh)->b_size, GFP_NOFS);
                 if (!committed_data) {
                         printk(KERN_EMERG "%s: No memory for committed data\n",
                                 __FUNCTION__);
@@ -906,7 +907,7 @@ repeat:
 out:
         journal_put_journal_head(jh);
         if (unlikely(committed_data))
-                kfree(committed_data);
+                jbd_slab_free(committed_data, bh->b_size);
         return err;
 }
 
diff --git a/fs/lockd/svcsubs.c b/fs/lockd/svcsubs.c
index 2a4df9b3779a..01b4db9e5466 100644
--- a/fs/lockd/svcsubs.c
+++ b/fs/lockd/svcsubs.c
@@ -237,19 +237,22 @@ static int
 nlm_traverse_files(struct nlm_host *host, int action)
 {
         struct nlm_file *file, **fp;
-        int             i;
+        int i, ret = 0;
 
         mutex_lock(&nlm_file_mutex);
         for (i = 0; i < FILE_NRHASH; i++) {
                 fp = nlm_files + i;
                 while ((file = *fp) != NULL) {
+                        file->f_count++;
+                        mutex_unlock(&nlm_file_mutex);
+
                         /* Traverse locks, blocks and shares of this file
                          * and update file->f_locks count */
-                        if (nlm_inspect_file(host, file, action)) {
-                                mutex_unlock(&nlm_file_mutex);
-                                return 1;
-                        }
+                        if (nlm_inspect_file(host, file, action))
+                                ret = 1;
 
+                        mutex_lock(&nlm_file_mutex);
+                        file->f_count--;
                         /* No more references to this file. Let go of it. */
                         if (!file->f_blocks && !file->f_locks
                          && !file->f_shares && !file->f_count) {
@@ -262,7 +265,7 @@ nlm_traverse_files(struct nlm_host *host, int action)
                 }
         }
         mutex_unlock(&nlm_file_mutex);
-        return 0;
+        return ret;
 }
 
 /*
diff --git a/fs/minix/inode.c b/fs/minix/inode.c
index 9ea91c5eeb7b..330ff9fc7cf0 100644
--- a/fs/minix/inode.c
+++ b/fs/minix/inode.c
@@ -204,6 +204,8 @@ static int minix_fill_super(struct super_block *s, void *data, int silent)
         /*
          * Allocate the buffer map to keep the superblock small.
          */
+        if (sbi->s_imap_blocks == 0 || sbi->s_zmap_blocks == 0)
+                goto out_illegal_sb;
         i = (sbi->s_imap_blocks + sbi->s_zmap_blocks) * sizeof(bh);
         map = kmalloc(i, GFP_KERNEL);
         if (!map)
@@ -263,7 +265,7 @@ out_no_root:
 
 out_no_bitmap:
         printk("MINIX-fs: bad superblock or unable to read bitmaps\n");
-    out_freemap:
+out_freemap:
         for (i = 0; i < sbi->s_imap_blocks; i++)
                 brelse(sbi->s_imap[i]);
         for (i = 0; i < sbi->s_zmap_blocks; i++)
@@ -276,11 +278,16 @@ out_no_map:
                 printk("MINIX-fs: can't allocate map\n");
         goto out_release;
 
+out_illegal_sb:
+        if (!silent)
+                printk("MINIX-fs: bad superblock\n");
+        goto out_release;
+
 out_no_fs:
         if (!silent)
                 printk("VFS: Can't find a Minix or Minix V2 filesystem "
                         "on device %s\n", s->s_id);
-    out_release:
+out_release:
         brelse(bh);
         goto out;
 
@@ -290,7 +297,7 @@ out_bad_hblock:
 
 out_bad_sb:
         printk("MINIX-fs: unable to read superblock\n");
- out:
+out:
         s->s_fs_info = NULL;
         kfree(sbi);
         return -EINVAL;
diff --git a/fs/namei.c b/fs/namei.c
index 55a131230f94..432d6bc6fab0 100644
--- a/fs/namei.c
+++ b/fs/namei.c
@@ -227,10 +227,10 @@ int generic_permission(struct inode *inode, int mask,
 
 int permission(struct inode *inode, int mask, struct nameidata *nd)
 {
+        umode_t mode = inode->i_mode;
         int retval, submask;
 
         if (mask & MAY_WRITE) {
-                umode_t mode = inode->i_mode;
 
                 /*
                  * Nobody gets write access to a read-only fs.
@@ -247,6 +247,13 @@ int permission(struct inode *inode, int mask, struct nameidata *nd)
         }
 
 
+        /*
+         * MAY_EXEC on regular files requires special handling: We override
+         * filesystem execute permissions if the mode bits aren't set.
+         */
+        if ((mask & MAY_EXEC) && S_ISREG(mode) && !(mode & S_IXUGO))
+                return -EACCES;
+
         /* Ordinary permission routines do not understand MAY_APPEND. */
         submask = mask & ~MAY_APPEND;
         if (inode->i_op && inode->i_op->permission)
@@ -1767,6 +1774,8 @@ struct dentry *lookup_create(struct nameidata *nd, int is_dir)
         if (nd->last_type != LAST_NORM)
                 goto fail;
         nd->flags &= ~LOOKUP_PARENT;
+        nd->flags |= LOOKUP_CREATE;
+        nd->intent.open.flags = O_EXCL;
 
         /*
          * Do the final lookup.
diff --git a/fs/nfs/file.c b/fs/nfs/file.c
index cc2b874ad5a4..48e892880d5b 100644
--- a/fs/nfs/file.c
+++ b/fs/nfs/file.c
@@ -312,7 +312,13 @@ static void nfs_invalidate_page(struct page *page, unsigned long offset)
 
 static int nfs_release_page(struct page *page, gfp_t gfp)
 {
-        return !nfs_wb_page(page->mapping->host, page);
+        if (gfp & __GFP_FS)
+                return !nfs_wb_page(page->mapping->host, page);
+        else
+                /*
+                 * Avoid deadlock on nfs_wait_on_request().
+                 */
+                return 0;
 }
 
 const struct address_space_operations nfs_file_aops = {
diff --git a/fs/nfs/idmap.c b/fs/nfs/idmap.c
index b81e7ed3c902..07a5dd57646e 100644
--- a/fs/nfs/idmap.c
+++ b/fs/nfs/idmap.c
@@ -130,9 +130,7 @@ nfs_idmap_delete(struct nfs4_client *clp)
 
         if (!idmap)
                 return;
-        dput(idmap->idmap_dentry);
-        idmap->idmap_dentry = NULL;
-        rpc_unlink(idmap->idmap_path);
+        rpc_unlink(idmap->idmap_dentry);
         clp->cl_idmap = NULL;
         kfree(idmap);
 }
diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index e6ee97f19d81..153898e1331f 100644
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -2668,7 +2668,7 @@ out:
         nfs4_set_cached_acl(inode, acl);
 }
 
-static inline ssize_t nfs4_get_acl_uncached(struct inode *inode, void *buf, size_t buflen)
+static ssize_t __nfs4_get_acl_uncached(struct inode *inode, void *buf, size_t buflen)
 {
         struct page *pages[NFS4ACL_MAXPAGES];
         struct nfs_getaclargs args = {
@@ -2721,6 +2721,19 @@ out_free:
         return ret;
 }
 
+static ssize_t nfs4_get_acl_uncached(struct inode *inode, void *buf, size_t buflen)
+{
+        struct nfs4_exception exception = { };
+        ssize_t ret;
+        do {
+                ret = __nfs4_get_acl_uncached(inode, buf, buflen);
+                if (ret >= 0)
+                        break;
+                ret = nfs4_handle_exception(NFS_SERVER(inode), ret, &exception);
+        } while (exception.retry);
+        return ret;
+}
+
 static ssize_t nfs4_proc_get_acl(struct inode *inode, void *buf, size_t buflen)
 {
         struct nfs_server *server = NFS_SERVER(inode);
@@ -2737,7 +2750,7 @@ static ssize_t nfs4_proc_get_acl(struct inode *inode, void *buf, size_t buflen)
         return nfs4_get_acl_uncached(inode, buf, buflen);
 }
 
-static int nfs4_proc_set_acl(struct inode *inode, const void *buf, size_t buflen)
+static int __nfs4_proc_set_acl(struct inode *inode, const void *buf, size_t buflen)
 {
         struct nfs_server *server = NFS_SERVER(inode);
         struct page *pages[NFS4ACL_MAXPAGES];
@@ -2763,6 +2776,18 @@ static int nfs4_proc_set_acl(struct inode *inode, const void *buf, size_t buflen
         return ret;
 }
 
+static int nfs4_proc_set_acl(struct inode *inode, const void *buf, size_t buflen)
+{
+        struct nfs4_exception exception = { };
+        int err;
+        do {
+                err = nfs4_handle_exception(NFS_SERVER(inode),
+                                __nfs4_proc_set_acl(inode, buf, buflen),
+                                &exception);
+        } while (exception.retry);
+        return err;
+}
+
 static int
 nfs4_async_handle_error(struct rpc_task *task, const struct nfs_server *server)
 {
diff --git a/fs/nfs/nfs4xdr.c b/fs/nfs/nfs4xdr.c
index 1750d996f49f..730ec8fb31c6 100644
--- a/fs/nfs/nfs4xdr.c
+++ b/fs/nfs/nfs4xdr.c
@@ -3355,7 +3355,7 @@ static int decode_readdir(struct xdr_stream *xdr, struct rpc_rqst *req, struct n
         struct kvec     *iov = rcvbuf->head;
         unsigned int    nr, pglen = rcvbuf->page_len;
         uint32_t        *end, *entry, *p, *kaddr;
-        uint32_t        len, attrlen;
+        uint32_t        len, attrlen, xlen;
         int             hdrlen, recvd, status;
 
         status = decode_op_hdr(xdr, OP_READDIR);
@@ -3377,10 +3377,10 @@ static int decode_readdir(struct xdr_stream *xdr, struct rpc_rqst *req, struct n
 
         BUG_ON(pglen + readdir->pgbase > PAGE_CACHE_SIZE);
         kaddr = p = (uint32_t *) kmap_atomic(page, KM_USER0);
-        end = (uint32_t *) ((char *)p + pglen + readdir->pgbase);
+        end = p + ((pglen + readdir->pgbase) >> 2);
         entry = p;
         for (nr = 0; *p++; nr++) {
-                if (p + 3 > end)
+                if (end - p < 3)
                         goto short_pkt;
                 dprintk("cookie = %Lu, ", *((unsigned long long *)p));
                 p += 2;                 /* cookie */
@@ -3389,18 +3389,19 @@ static int decode_readdir(struct xdr_stream *xdr, struct rpc_rqst *req, struct n
                         printk(KERN_WARNING "NFS: giant filename in readdir (len 0x%x)\n", len);
                         goto err_unmap;
                 }
-                dprintk("filename = %*s\n", len, (char *)p);
-                p += XDR_QUADLEN(len);
-                if (p + 1 > end)
+                xlen = XDR_QUADLEN(len);
+                if (end - p < xlen + 1)
                         goto short_pkt;
+                dprintk("filename = %*s\n", len, (char *)p);
+                p += xlen;
                 len = ntohl(*p++);      /* bitmap length */
-                p += len;
-                if (p + 1 > end)
+                if (end - p < len + 1)
                         goto short_pkt;
+                p += len;
                 attrlen = XDR_QUADLEN(ntohl(*p++));
-                p += attrlen;           /* attributes */
-                if (p + 2 > end)
+                if (end - p < attrlen + 2)
                         goto short_pkt;
+                p += attrlen;           /* attributes */
                 entry = p;
         }
         if (!nr && (entry[0] != 0 || entry[1] == 0))
diff --git a/fs/nfs/read.c b/fs/nfs/read.c
index 65c0c5b32351..da9cf11c326f 100644
--- a/fs/nfs/read.c
+++ b/fs/nfs/read.c
@@ -116,10 +116,17 @@ static void nfs_readpage_truncate_uninitialised_page(struct nfs_read_data *data)
         pages = &data->args.pages[base >> PAGE_CACHE_SHIFT];
         base &= ~PAGE_CACHE_MASK;
         pglen = PAGE_CACHE_SIZE - base;
-        if (pglen < remainder)
+        for (;;) {
+                if (remainder <= pglen) {
+                        memclear_highpage_flush(*pages, base, remainder);
+                        break;
+                }
                 memclear_highpage_flush(*pages, base, pglen);
-        else
-                memclear_highpage_flush(*pages, base, remainder);
+                pages++;
+                remainder -= pglen;
+                pglen = PAGE_CACHE_SIZE;
+                base = 0;
+        }
 }
 
 /*
@@ -476,6 +483,8 @@ static void nfs_readpage_set_pages_uptodate(struct nfs_read_data *data)
         unsigned int base = data->args.pgbase;
         struct page **pages;
 
+        if (data->res.eof)
+                count = data->args.count;
         if (unlikely(count == 0))
                 return;
         pages = &data->args.pages[base >> PAGE_CACHE_SHIFT];
@@ -483,11 +492,7 @@ static void nfs_readpage_set_pages_uptodate(struct nfs_read_data *data)
         count += base;
         for (;count >= PAGE_CACHE_SIZE; count -= PAGE_CACHE_SIZE, pages++)
                 SetPageUptodate(*pages);
-        /*
-         * Was this an eof or a short read? If the latter, don't mark the page
-         * as uptodate yet.
-         */
-        if (count > 0 && (data->res.eof || data->args.count == data->res.count))
+        if (count != 0)
                 SetPageUptodate(*pages);
 }
 
@@ -502,6 +507,8 @@ static void nfs_readpage_set_pages_error(struct nfs_read_data *data)
         count += base;
         for (;count >= PAGE_CACHE_SIZE; count -= PAGE_CACHE_SIZE, pages++)
                 SetPageError(*pages);
+        if (count != 0)
+                SetPageError(*pages);
 }
 
 /*
diff --git a/fs/partitions/sun.c b/fs/partitions/sun.c
index abe91ca03edf..0a5927c806ca 100644
--- a/fs/partitions/sun.c
+++ b/fs/partitions/sun.c
@@ -74,7 +74,7 @@ int sun_partition(struct parsed_partitions *state, struct block_device *bdev)
         spc = be16_to_cpu(label->ntrks) * be16_to_cpu(label->nsect);
         for (i = 0; i < 8; i++, p++) {
                 unsigned long st_sector;
-                int num_sectors;
+                unsigned int num_sectors;
 
                 st_sector = be32_to_cpu(p->start_cylinder) * spc;
                 num_sectors = be32_to_cpu(p->num_sectors);
diff --git a/fs/proc/proc_misc.c b/fs/proc/proc_misc.c
index 9f2cfc30f9cf..942156225447 100644
--- a/fs/proc/proc_misc.c
+++ b/fs/proc/proc_misc.c
@@ -169,7 +169,7 @@ static int meminfo_read_proc(char *page, char **start, off_t off,
                 "Mapped:       %8lu kB\n"
                 "Slab:         %8lu kB\n"
                 "PageTables:   %8lu kB\n"
-                "NFS Unstable: %8lu kB\n"
+                "NFS_Unstable: %8lu kB\n"
                 "Bounce:       %8lu kB\n"
                 "CommitLimit:  %8lu kB\n"
                 "Committed_AS: %8lu kB\n"
diff --git a/fs/reiserfs/xattr.c b/fs/reiserfs/xattr.c
index 39fedaa88a0c..d935fb9394e3 100644
--- a/fs/reiserfs/xattr.c
+++ b/fs/reiserfs/xattr.c
@@ -424,7 +424,7 @@ int xattr_readdir(struct file *file, filldir_t filler, void *buf)
         int res = -ENOTDIR;
         if (!file->f_op || !file->f_op->readdir)
                 goto out;
-        mutex_lock(&inode->i_mutex);
+        mutex_lock_nested(&inode->i_mutex, I_MUTEX_XATTR);
 //        down(&inode->i_zombie);
         res = -ENOENT;
         if (!IS_DEADDIR(inode)) {
diff --git a/fs/udf/super.c b/fs/udf/super.c
index 7de172efa084..fcce1a21a51b 100644
--- a/fs/udf/super.c
+++ b/fs/udf/super.c
@@ -1659,7 +1659,7 @@ static int udf_fill_super(struct super_block *sb, void *options, int silent)
                 iput(inode);
                 goto error_out;
         }
-        sb->s_maxbytes = MAX_LFS_FILESIZE;
+        sb->s_maxbytes = 1<<30;
         return 0;
 
 error_out:
diff --git a/fs/udf/truncate.c b/fs/udf/truncate.c
index e1b0e8cfecb4..0abd66ce36ea 100644
--- a/fs/udf/truncate.c
+++ b/fs/udf/truncate.c
@@ -239,37 +239,51 @@ void udf_truncate_extents(struct inode * inode)
         {
                 if (offset)
                 {
-                        extoffset -= adsize;
-                        etype = udf_next_aext(inode, &bloc, &extoffset, &eloc, &elen, &bh, 1);
-                        if (etype == (EXT_NOT_RECORDED_NOT_ALLOCATED >> 30))
-                        {
-                                extoffset -= adsize;
-                                elen = EXT_NOT_RECORDED_NOT_ALLOCATED | (elen + offset);
-                                udf_write_aext(inode, bloc, &extoffset, eloc, elen, bh, 0);
+                        /*
+                         *  OK, there is not extent covering inode->i_size and
+                         *  no extent above inode->i_size => truncate is
+                         *  extending the file by 'offset'.
+                         */
+                        if ((!bh && extoffset == udf_file_entry_alloc_offset(inode)) ||
+                            (bh && extoffset == sizeof(struct allocExtDesc))) {
+                                /* File has no extents at all! */
+                                memset(&eloc, 0x00, sizeof(kernel_lb_addr));
+                                elen = EXT_NOT_RECORDED_NOT_ALLOCATED | offset;
+                                udf_add_aext(inode, &bloc, &extoffset, eloc, elen, &bh, 1);
                         }
-                        else if (etype == (EXT_NOT_RECORDED_ALLOCATED >> 30))
-                        {
-                                kernel_lb_addr neloc = { 0, 0 };
+                        else {
                                 extoffset -= adsize;
-                                nelen = EXT_NOT_RECORDED_NOT_ALLOCATED |
-                                        ((elen + offset + inode->i_sb->s_blocksize - 1) &
-                                        ~(inode->i_sb->s_blocksize - 1));
-                                udf_write_aext(inode, bloc, &extoffset, neloc, nelen, bh, 1);
-                                udf_add_aext(inode, &bloc, &extoffset, eloc, (etype << 30) | elen, &bh, 1);
-                        }
-                        else
-                        {
-                                if (elen & (inode->i_sb->s_blocksize - 1))
+                                etype = udf_next_aext(inode, &bloc, &extoffset, &eloc, &elen, &bh, 1);
+                                if (etype == (EXT_NOT_RECORDED_NOT_ALLOCATED >> 30))
+                                {
+                                        extoffset -= adsize;
+                                        elen = EXT_NOT_RECORDED_NOT_ALLOCATED | (elen + offset);
+                                        udf_write_aext(inode, bloc, &extoffset, eloc, elen, bh, 0);
+                                }
+                                else if (etype == (EXT_NOT_RECORDED_ALLOCATED >> 30))
                                 {
+                                        kernel_lb_addr neloc = { 0, 0 };
                                         extoffset -= adsize;
-                                        elen = EXT_RECORDED_ALLOCATED |
-                                                ((elen + inode->i_sb->s_blocksize - 1) &
+                                        nelen = EXT_NOT_RECORDED_NOT_ALLOCATED |
+                                                ((elen + offset + inode->i_sb->s_blocksize - 1) &
                                                 ~(inode->i_sb->s_blocksize - 1));
-                                        udf_write_aext(inode, bloc, &extoffset, eloc, elen, bh, 1);
+                                        udf_write_aext(inode, bloc, &extoffset, neloc, nelen, bh, 1);
+                                        udf_add_aext(inode, &bloc, &extoffset, eloc, (etype << 30) | elen, &bh, 1);
+                                }
+                                else
+                                {
+                                        if (elen & (inode->i_sb->s_blocksize - 1))
+                                        {
+                                                extoffset -= adsize;
+                                                elen = EXT_RECORDED_ALLOCATED |
+                                                        ((elen + inode->i_sb->s_blocksize - 1) &
+                                                        ~(inode->i_sb->s_blocksize - 1));
+                                                udf_write_aext(inode, bloc, &extoffset, eloc, elen, bh, 1);
+                                        }
+                                        memset(&eloc, 0x00, sizeof(kernel_lb_addr));
+                                        elen = EXT_NOT_RECORDED_NOT_ALLOCATED | offset;
+                                        udf_add_aext(inode, &bloc, &extoffset, eloc, elen, &bh, 1);
                                 }
-                                memset(&eloc, 0x00, sizeof(kernel_lb_addr));
-                                elen = EXT_NOT_RECORDED_NOT_ALLOCATED | offset;
-                                udf_add_aext(inode, &bloc, &extoffset, eloc, elen, &bh, 1);
                         }
                 }
         }
diff --git a/fs/ufs/inode.c b/fs/ufs/inode.c
index e7c8615beb65..30c6e8a9446c 100644
--- a/fs/ufs/inode.c
+++ b/fs/ufs/inode.c
@@ -169,18 +169,20 @@ static void ufs_clear_frag(struct inode *inode, struct buffer_head *bh)
 
 static struct buffer_head *
 ufs_clear_frags(struct inode *inode, sector_t beg,
-                unsigned int n)
+                unsigned int n, sector_t want)
 {
-        struct buffer_head *res, *bh;
+        struct buffer_head *res = NULL, *bh;
         sector_t end = beg + n;
 
-        res = sb_getblk(inode->i_sb, beg);
-        ufs_clear_frag(inode, res);
-        for (++beg; beg < end; ++beg) {
+        for (; beg < end; ++beg) {
                 bh = sb_getblk(inode->i_sb, beg);
                 ufs_clear_frag(inode, bh);
-                brelse(bh);
+                if (want != beg)
+                        brelse(bh);
+                else
+                        res = bh;
         }
+        BUG_ON(!res);
         return res;
 }
 
@@ -265,7 +267,9 @@ repeat:
                         lastfrag = ufsi->i_lastfrag;
                         
                 }
-                goal = fs32_to_cpu(sb, ufsi->i_u1.i_data[lastblock]) + uspi->s_fpb;
+                tmp = fs32_to_cpu(sb, ufsi->i_u1.i_data[lastblock]);
+                if (tmp)
+                        goal = tmp + uspi->s_fpb;
                 tmp = ufs_new_fragments (inode, p, fragment - blockoff, 
                                          goal, required + blockoff,
                                          err, locked_page);
@@ -277,13 +281,15 @@ repeat:
                 tmp = ufs_new_fragments(inode, p, fragment - (blockoff - lastblockoff),
                                         fs32_to_cpu(sb, *p), required +  (blockoff - lastblockoff),
                                         err, locked_page);
-        }
+        } else /* (lastblock > block) */ {
         /*
          * We will allocate new block before last allocated block
          */
-        else /* (lastblock > block) */ {
-                if (lastblock && (tmp = fs32_to_cpu(sb, ufsi->i_u1.i_data[lastblock-1])))
-                        goal = tmp + uspi->s_fpb;
+                if (block) {
+                        tmp = fs32_to_cpu(sb, ufsi->i_u1.i_data[block-1]);
+                        if (tmp)
+                                goal = tmp + uspi->s_fpb;
+                }
                 tmp = ufs_new_fragments(inode, p, fragment - blockoff,
                                         goal, uspi->s_fpb, err, locked_page);
         }
@@ -296,7 +302,7 @@ repeat:
         }
 
         if (!phys) {
-                result = ufs_clear_frags(inode, tmp + blockoff, required);
+                result = ufs_clear_frags(inode, tmp, required, tmp + blockoff);
         } else {
                 *phys = tmp + blockoff;
                 result = NULL;
@@ -383,7 +389,7 @@ repeat:
                 }
         }
 
-        if (block && (tmp = fs32_to_cpu(sb, ((__fs32*)bh->b_data)[block-1]) + uspi->s_fpb))
+        if (block && (tmp = fs32_to_cpu(sb, ((__fs32*)bh->b_data)[block-1])))
                 goal = tmp + uspi->s_fpb;
         else
                 goal = bh->b_blocknr + uspi->s_fpb;
@@ -397,7 +403,8 @@ repeat:
 
 
         if (!phys) {
-                result = ufs_clear_frags(inode, tmp + blockoff, uspi->s_fpb);
+                result = ufs_clear_frags(inode, tmp, uspi->s_fpb,
+                                         tmp + blockoff);
         } else {
                 *phys = tmp + blockoff;
                 *new = 1;
diff --git a/fs/ufs/truncate.c b/fs/ufs/truncate.c
index c9b55872079b..ea11d04c41a0 100644
--- a/fs/ufs/truncate.c
+++ b/fs/ufs/truncate.c
@@ -375,17 +375,15 @@ static int ufs_alloc_lastblock(struct inode *inode)
         int err = 0;
         struct address_space *mapping = inode->i_mapping;
         struct ufs_sb_private_info *uspi = UFS_SB(inode->i_sb)->s_uspi;
-        struct ufs_inode_info *ufsi = UFS_I(inode);
         unsigned lastfrag, i, end;
         struct page *lastpage;
         struct buffer_head *bh;
 
         lastfrag = (i_size_read(inode) + uspi->s_fsize - 1) >> uspi->s_fshift;
 
-        if (!lastfrag) {
-                ufsi->i_lastfrag = 0;
+        if (!lastfrag)
                 goto out;
-        }
+
         lastfrag--;
 
         lastpage = ufs_get_locked_page(mapping, lastfrag >>
@@ -400,25 +398,25 @@ static int ufs_alloc_lastblock(struct inode *inode)
        for (i = 0; i < end; ++i)
                bh = bh->b_this_page;
 
-       if (!buffer_mapped(bh)) {
-               err = ufs_getfrag_block(inode, lastfrag, bh, 1);
-
-               if (unlikely(err))
-                       goto out_unlock;
-
-               if (buffer_new(bh)) {
-                       clear_buffer_new(bh);
-                       unmap_underlying_metadata(bh->b_bdev,
-                                                 bh->b_blocknr);
-                       /*
-                        * we do not zeroize fragment, because of
-                        * if it maped to hole, it already contains zeroes
-                        */
-                       set_buffer_uptodate(bh);
-                       mark_buffer_dirty(bh);
-                       set_page_dirty(lastpage);
-               }
+
+       err = ufs_getfrag_block(inode, lastfrag, bh, 1);
+
+       if (unlikely(err))
+               goto out_unlock;
+
+       if (buffer_new(bh)) {
+               clear_buffer_new(bh);
+               unmap_underlying_metadata(bh->b_bdev,
+                                         bh->b_blocknr);
+               /*
+                * we do not zeroize fragment, because of
+                * if it maped to hole, it already contains zeroes
+                */
+               set_buffer_uptodate(bh);
+               mark_buffer_dirty(bh);
+               set_page_dirty(lastpage);
        }
+
 out_unlock:
        ufs_put_locked_page(lastpage);
 out:
@@ -440,23 +438,11 @@ int ufs_truncate(struct inode *inode, loff_t old_i_size)
         if (IS_APPEND(inode) || IS_IMMUTABLE(inode))
                 return -EPERM;
 
-        if (inode->i_size > old_i_size) {
-                /*
-                 * if we expand file we should care about
-                 * allocation of block for last byte first of all
-                 */
-                err = ufs_alloc_lastblock(inode);
+        err = ufs_alloc_lastblock(inode);
 
-                if (err) {
-                        i_size_write(inode, old_i_size);
-                        goto out;
-                }
-                /*
-                 * go away, because of we expand file, and we do not
-                 * need free blocks, and zeroizes page
-                 */
-                lock_kernel();
-                goto almost_end;
+        if (err) {
+                i_size_write(inode, old_i_size);
+                goto out;
         }
 
         block_truncate_page(inode->i_mapping, inode->i_size, ufs_getfrag_block);
@@ -477,21 +463,8 @@ int ufs_truncate(struct inode *inode, loff_t old_i_size)
                 yield();
         }
 
-        if (inode->i_size < old_i_size) {
-                /*
-                 * now we should have enough space
-                 * to allocate block for last byte
-                 */
-                err = ufs_alloc_lastblock(inode);
-                if (err)
-                        /*
-                         * looks like all the same - we have no space,
-                         * but we truncate file already
-                         */
-                        inode->i_size = (ufsi->i_lastfrag - 1) * uspi->s_fsize;
-        }
-almost_end:
         inode->i_mtime = inode->i_ctime = CURRENT_TIME_SEC;
+        ufsi->i_lastfrag = DIRECT_FRAGMENT;
         unlock_kernel();
         mark_inode_dirty(inode);
 out:
diff --git a/include/asm-arm/arch-s3c2410/dma.h b/include/asm-arm/arch-s3c2410/dma.h
index 72964f9b8414..7463fd5252ce 100644
--- a/include/asm-arm/arch-s3c2410/dma.h
+++ b/include/asm-arm/arch-s3c2410/dma.h
@@ -104,6 +104,7 @@ enum s3c2410_chan_op_e {
         S3C2410_DMAOP_RESUME,
         S3C2410_DMAOP_FLUSH,
         S3C2410_DMAOP_TIMEOUT,           /* internal signal to handler */
+        S3C2410_DMAOP_STARTED,          /* indicate channel started */
 };
 
 typedef enum s3c2410_chan_op_e s3c2410_chan_op_t;
diff --git a/include/asm-arm/arch-s3c2410/regs-rtc.h b/include/asm-arm/arch-s3c2410/regs-rtc.h
index 228983f89bc8..0fbec07bb6b8 100644
--- a/include/asm-arm/arch-s3c2410/regs-rtc.h
+++ b/include/asm-arm/arch-s3c2410/regs-rtc.h
@@ -18,7 +18,7 @@
 #ifndef __ASM_ARCH_REGS_RTC_H
 #define __ASM_ARCH_REGS_RTC_H __FILE__
 
-#define S3C2410_RTCREG(x) ((x) + S3C24XX_VA_RTC)
+#define S3C2410_RTCREG(x) (x)
 
 #define S3C2410_RTCCON        S3C2410_RTCREG(0x40)
 #define S3C2410_RTCCON_RTCEN  (1<<0)
diff --git a/include/asm-arm/procinfo.h b/include/asm-arm/procinfo.h
index edb7b6502fcf..91a31adfa8a8 100644
--- a/include/asm-arm/procinfo.h
+++ b/include/asm-arm/procinfo.h
@@ -55,5 +55,6 @@ extern unsigned int elf_hwcap;
 #define HWCAP_VFP       64
 #define HWCAP_EDSP      128
 #define HWCAP_JAVA      256
+#define HWCAP_IWMMXT    512
 
 #endif
diff --git a/include/asm-i386/mmzone.h b/include/asm-i386/mmzone.h
index e33e9f9e4c66..22cb07cc8f32 100644
--- a/include/asm-i386/mmzone.h
+++ b/include/asm-i386/mmzone.h
@@ -14,7 +14,7 @@ extern struct pglist_data *node_data[];
 
 #ifdef CONFIG_X86_NUMAQ
         #include <asm/numaq.h>
-#else   /* summit or generic arch */
+#elif defined(CONFIG_ACPI_SRAT)/* summit or generic arch */
         #include <asm/srat.h>
 #endif
 
diff --git a/include/asm-powerpc/pgalloc.h b/include/asm-powerpc/pgalloc.h
index 9f0917c68659..ae63db7b3e7d 100644
--- a/include/asm-powerpc/pgalloc.h
+++ b/include/asm-powerpc/pgalloc.h
@@ -117,7 +117,7 @@ static inline void pte_free(struct page *ptepage)
         pte_free_kernel(page_address(ptepage));
 }
 
-#define PGF_CACHENUM_MASK       0xf
+#define PGF_CACHENUM_MASK       0x3
 
 typedef struct pgtable_free {
         unsigned long val;
diff --git a/include/asm-powerpc/system.h b/include/asm-powerpc/system.h
index 7307aa775671..4c9f5229e833 100644
--- a/include/asm-powerpc/system.h
+++ b/include/asm-powerpc/system.h
@@ -53,6 +53,15 @@
 #define smp_read_barrier_depends()      do { } while(0)
 #endif /* CONFIG_SMP */
 
+/*
+ * This is a barrier which prevents following instructions from being
+ * started until the value of the argument x is known.  For example, if
+ * x is a variable loaded from memory, this prevents following
+ * instructions from being executed until the load has been performed.
+ */
+#define data_barrier(x) \
+        asm volatile("twi 0,%0,0; isync" : : "r" (x) : "memory");
+
 struct task_struct;
 struct pt_regs;
 
diff --git a/include/asm-powerpc/tsi108.h b/include/asm-powerpc/tsi108.h
index c4c278d72f71..2c702d35a7cf 100644
--- a/include/asm-powerpc/tsi108.h
+++ b/include/asm-powerpc/tsi108.h
@@ -1,16 +1,18 @@
 /*
- * include/asm-ppc/tsi108.h
- *
  * common routine and memory layout for Tundra TSI108(Grendel) host bridge
  * memory controller.
  *
  * Author: Jacob Pan (jacob.pan@freescale.com)
  *         Alex Bounine (alexandreb@tundra.com)
- * 2004 (c) Freescale Semiconductor Inc.  This file is licensed under
- * the terms of the GNU General Public License version 2.  This program
- * is licensed "as is" without any warranty of any kind, whether express
- * or implied.
+ *
+ * Copyright 2004-2006 Freescale Semiconductor, Inc.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
  */
+
 #ifndef __PPC_KERNEL_TSI108_H
 #define __PPC_KERNEL_TSI108_H
 
diff --git a/include/asm-powerpc/tsi108_irq.h b/include/asm-powerpc/tsi108_irq.h
new file mode 100644
index 000000000000..3e4d04effa57
--- /dev/null
+++ b/include/asm-powerpc/tsi108_irq.h
@@ -0,0 +1,124 @@
+/*
+ * (C) Copyright 2005 Tundra Semiconductor Corp.
+ * Alex Bounine, <alexandreb at tundra.com).
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+/*
+ * definitions for interrupt controller initialization and external interrupt
+ * demultiplexing on TSI108EMU/SVB boards.
+ */
+
+#ifndef _ASM_PPC_TSI108_IRQ_H
+#define _ASM_PPC_TSI108_IRQ_H
+
+/*
+ * Tsi108 interrupts
+ */
+#ifndef TSI108_IRQ_REG_BASE
+#define TSI108_IRQ_REG_BASE             0
+#endif
+
+#define TSI108_IRQ(x)           (TSI108_IRQ_REG_BASE + (x))
+
+#define TSI108_MAX_VECTORS      (36 + 4)        /* 36 sources + PCI INT demux */
+#define MAX_TASK_PRIO   0xF
+
+#define TSI108_IRQ_SPURIOUS     (TSI108_MAX_VECTORS)
+
+#define DEFAULT_PRIO_LVL        10      /* initial priority level */
+
+/* Interrupt vectors assignment to external and internal
+ * sources of requests. */
+
+/* EXTERNAL INTERRUPT SOURCES */
+
+#define IRQ_TSI108_EXT_INT0     TSI108_IRQ(0)   /* External Source at INT[0] */
+#define IRQ_TSI108_EXT_INT1     TSI108_IRQ(1)   /* External Source at INT[1] */
+#define IRQ_TSI108_EXT_INT2     TSI108_IRQ(2)   /* External Source at INT[2] */
+#define IRQ_TSI108_EXT_INT3     TSI108_IRQ(3)   /* External Source at INT[3] */
+
+/* INTERNAL INTERRUPT SOURCES */
+
+#define IRQ_TSI108_RESERVED0    TSI108_IRQ(4)   /* Reserved IRQ */
+#define IRQ_TSI108_RESERVED1    TSI108_IRQ(5)   /* Reserved IRQ */
+#define IRQ_TSI108_RESERVED2    TSI108_IRQ(6)   /* Reserved IRQ */
+#define IRQ_TSI108_RESERVED3    TSI108_IRQ(7)   /* Reserved IRQ */
+#define IRQ_TSI108_DMA0         TSI108_IRQ(8)   /* DMA0 */
+#define IRQ_TSI108_DMA1         TSI108_IRQ(9)   /* DMA1 */
+#define IRQ_TSI108_DMA2         TSI108_IRQ(10)  /* DMA2 */
+#define IRQ_TSI108_DMA3         TSI108_IRQ(11)  /* DMA3 */
+#define IRQ_TSI108_UART0        TSI108_IRQ(12)  /* UART0 */
+#define IRQ_TSI108_UART1        TSI108_IRQ(13)  /* UART1 */
+#define IRQ_TSI108_I2C          TSI108_IRQ(14)  /* I2C */
+#define IRQ_TSI108_GPIO         TSI108_IRQ(15)  /* GPIO */
+#define IRQ_TSI108_GIGE0        TSI108_IRQ(16)  /* GIGE0 */
+#define IRQ_TSI108_GIGE1        TSI108_IRQ(17)  /* GIGE1 */
+#define IRQ_TSI108_RESERVED4    TSI108_IRQ(18)  /* Reserved IRQ */
+#define IRQ_TSI108_HLP          TSI108_IRQ(19)  /* HLP */
+#define IRQ_TSI108_SDRAM        TSI108_IRQ(20)  /* SDC */
+#define IRQ_TSI108_PROC_IF      TSI108_IRQ(21)  /* Processor IF */
+#define IRQ_TSI108_RESERVED5    TSI108_IRQ(22)  /* Reserved IRQ */
+#define IRQ_TSI108_PCI          TSI108_IRQ(23)  /* PCI/X block */
+
+#define IRQ_TSI108_MBOX0        TSI108_IRQ(24)  /* Mailbox 0 register */
+#define IRQ_TSI108_MBOX1        TSI108_IRQ(25)  /* Mailbox 1 register */
+#define IRQ_TSI108_MBOX2        TSI108_IRQ(26)  /* Mailbox 2 register */
+#define IRQ_TSI108_MBOX3        TSI108_IRQ(27)  /* Mailbox 3 register */
+
+#define IRQ_TSI108_DBELL0       TSI108_IRQ(28)  /* Doorbell 0 */
+#define IRQ_TSI108_DBELL1       TSI108_IRQ(29)  /* Doorbell 1 */
+#define IRQ_TSI108_DBELL2       TSI108_IRQ(30)  /* Doorbell 2 */
+#define IRQ_TSI108_DBELL3       TSI108_IRQ(31)  /* Doorbell 3 */
+
+#define IRQ_TSI108_TIMER0       TSI108_IRQ(32)  /* Global Timer 0 */
+#define IRQ_TSI108_TIMER1       TSI108_IRQ(33)  /* Global Timer 1 */
+#define IRQ_TSI108_TIMER2       TSI108_IRQ(34)  /* Global Timer 2 */
+#define IRQ_TSI108_TIMER3       TSI108_IRQ(35)  /* Global Timer 3 */
+
+/*
+ * PCI bus INTA# - INTD# lines demultiplexor
+ */
+#define IRQ_PCI_INTAD_BASE      TSI108_IRQ(36)
+#define IRQ_PCI_INTA            (IRQ_PCI_INTAD_BASE + 0)
+#define IRQ_PCI_INTB            (IRQ_PCI_INTAD_BASE + 1)
+#define IRQ_PCI_INTC            (IRQ_PCI_INTAD_BASE + 2)
+#define IRQ_PCI_INTD            (IRQ_PCI_INTAD_BASE + 3)
+#define NUM_PCI_IRQS            (4)
+
+/* number of entries in vector dispatch table */
+#define IRQ_TSI108_TAB_SIZE     (TSI108_MAX_VECTORS + 1)
+
+/* Mapping of MPIC outputs to processors' interrupt pins */
+
+#define IDIR_INT_OUT0           0x1
+#define IDIR_INT_OUT1           0x2
+#define IDIR_INT_OUT2           0x4
+#define IDIR_INT_OUT3           0x8
+
+/*---------------------------------------------------------------
+ * IRQ line configuration parameters */
+
+/* Interrupt delivery modes */
+typedef enum {
+        TSI108_IRQ_DIRECTED,
+        TSI108_IRQ_DISTRIBUTED,
+} TSI108_IRQ_MODE;
+#endif                          /*  _ASM_PPC_TSI108_IRQ_H */
diff --git a/include/asm-sparc64/pgtable.h b/include/asm-sparc64/pgtable.h
index 1ba19eb34ce3..ebfe395cfb87 100644
--- a/include/asm-sparc64/pgtable.h
+++ b/include/asm-sparc64/pgtable.h
@@ -234,7 +234,7 @@ static inline pte_t pfn_pte(unsigned long pfn, pgprot_t prot)
         sz_bits = 0UL;
         if (_PAGE_SZBITS_4U != 0UL || _PAGE_SZBITS_4V != 0UL) {
                 __asm__ __volatile__(
-                "\n661: sethi           %uhi(%1), %0\n"
+                "\n661: sethi           %%uhi(%1), %0\n"
                 "       sllx            %0, 32, %0\n"
                 "       .section        .sun4v_2insn_patch, \"ax\"\n"
                 "       .word           661b\n"
diff --git a/include/linux/compat_ioctl.h b/include/linux/compat_ioctl.h
index 269d000bb2a3..bea0255196c4 100644
--- a/include/linux/compat_ioctl.h
+++ b/include/linux/compat_ioctl.h
@@ -216,6 +216,7 @@ COMPATIBLE_IOCTL(VT_RESIZE)
 COMPATIBLE_IOCTL(VT_RESIZEX)
 COMPATIBLE_IOCTL(VT_LOCKSWITCH)
 COMPATIBLE_IOCTL(VT_UNLOCKSWITCH)
+COMPATIBLE_IOCTL(VT_GETHIFONTMASK)
 /* Little p (/dev/rtc, /dev/envctrl, etc.) */
 COMPATIBLE_IOCTL(RTC_AIE_ON)
 COMPATIBLE_IOCTL(RTC_AIE_OFF)
diff --git a/include/linux/fs.h b/include/linux/fs.h
index 25610205c90d..555bc195c420 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -570,13 +570,14 @@ struct inode {
  * 3: quota file
  *
  * The locking order between these classes is
- * parent -> child -> normal -> quota
+ * parent -> child -> normal -> xattr -> quota
  */
 enum inode_i_mutex_lock_class
 {
         I_MUTEX_NORMAL,
         I_MUTEX_PARENT,
         I_MUTEX_CHILD,
+        I_MUTEX_XATTR,
         I_MUTEX_QUOTA
 };
 
diff --git a/include/linux/ioprio.h b/include/linux/ioprio.h
index 88d5961f7a3f..8e2042b9d471 100644
--- a/include/linux/ioprio.h
+++ b/include/linux/ioprio.h
@@ -59,27 +59,6 @@ static inline int task_nice_ioprio(struct task_struct *task)
 /*
  * For inheritance, return the highest of the two given priorities
  */
-static inline int ioprio_best(unsigned short aprio, unsigned short bprio)
-{
-        unsigned short aclass = IOPRIO_PRIO_CLASS(aprio);
-        unsigned short bclass = IOPRIO_PRIO_CLASS(bprio);
-
-        if (!ioprio_valid(aprio))
-                return bprio;
-        if (!ioprio_valid(bprio))
-                return aprio;
-
-        if (aclass == IOPRIO_CLASS_NONE)
-                aclass = IOPRIO_CLASS_BE;
-        if (bclass == IOPRIO_CLASS_NONE)
-                bclass = IOPRIO_CLASS_BE;
-
-        if (aclass == bclass)
-                return min(aprio, bprio);
-        if (aclass > bclass)
-                return bprio;
-        else
-                return aprio;
-}
+extern int ioprio_best(unsigned short aprio, unsigned short bprio);
 
 #endif
diff --git a/include/linux/jbd.h b/include/linux/jbd.h
index 20eb34403d0c..a04c154c5207 100644
--- a/include/linux/jbd.h
+++ b/include/linux/jbd.h
@@ -72,6 +72,9 @@ extern int journal_enable_debug;
 #endif
 
 extern void * __jbd_kmalloc (const char *where, size_t size, gfp_t flags, int retry);
+extern void * jbd_slab_alloc(size_t size, gfp_t flags);
+extern void jbd_slab_free(void *ptr, size_t size);
+
 #define jbd_kmalloc(size, flags) \
         __jbd_kmalloc(__FUNCTION__, (size), (flags), journal_oom_retry)
 #define jbd_rep_kmalloc(size, flags) \
diff --git a/include/linux/netfilter_bridge.h b/include/linux/netfilter_bridge.h
index 10c13dc4665b..427c67ff89e9 100644
--- a/include/linux/netfilter_bridge.h
+++ b/include/linux/netfilter_bridge.h
@@ -48,15 +48,25 @@ enum nf_br_hook_priorities {
 
 /* Only used in br_forward.c */
 static inline
-void nf_bridge_maybe_copy_header(struct sk_buff *skb)
+int nf_bridge_maybe_copy_header(struct sk_buff *skb)
 {
+        int err;
+
         if (skb->nf_bridge) {
                 if (skb->protocol == __constant_htons(ETH_P_8021Q)) {
+                        err = skb_cow(skb, 18);
+                        if (err)
+                                return err;
                         memcpy(skb->data - 18, skb->nf_bridge->data, 18);
                         skb_push(skb, 4);
-                } else
+                } else {
+                        err = skb_cow(skb, 16);
+                        if (err)
+                                return err;
                         memcpy(skb->data - 16, skb->nf_bridge->data, 16);
+                }
         }
+        return 0;
 }
 
 /* This is called by the IP fragmenting code and it ensures there is
diff --git a/include/linux/nfs_xdr.h b/include/linux/nfs_xdr.h
index 2d3fb6416d91..db9cbf68e12b 100644
--- a/include/linux/nfs_xdr.h
+++ b/include/linux/nfs_xdr.h
@@ -659,7 +659,7 @@ struct nfs4_rename_res {
 struct nfs4_setclientid {
         const nfs4_verifier *           sc_verifier;      /* request */
         unsigned int                    sc_name_len;
-        char                            sc_name[32];      /* request */
+        char                            sc_name[48];      /* request */
         u32                             sc_prog;          /* request */
         unsigned int                    sc_netid_len;
         char                            sc_netid[4];      /* request */
diff --git a/include/linux/node.h b/include/linux/node.h
index 81dcec84cd8f..bc001bc225c3 100644
--- a/include/linux/node.h
+++ b/include/linux/node.h
@@ -30,12 +30,20 @@ extern struct node node_devices[];
 
 extern int register_node(struct node *, int, struct node *);
 extern void unregister_node(struct node *node);
+#ifdef CONFIG_NUMA
 extern int register_one_node(int nid);
 extern void unregister_one_node(int nid);
-#ifdef CONFIG_NUMA
 extern int register_cpu_under_node(unsigned int cpu, unsigned int nid);
 extern int unregister_cpu_under_node(unsigned int cpu, unsigned int nid);
 #else
+static inline int register_one_node(int nid)
+{
+        return 0;
+}
+static inline int unregister_one_node(int nid)
+{
+        return 0;
+}
 static inline int register_cpu_under_node(unsigned int cpu, unsigned int nid)
 {
         return 0;
diff --git a/include/linux/sunrpc/rpc_pipe_fs.h b/include/linux/sunrpc/rpc_pipe_fs.h
index 2c2189cb30aa..a481472c9484 100644
--- a/include/linux/sunrpc/rpc_pipe_fs.h
+++ b/include/linux/sunrpc/rpc_pipe_fs.h
@@ -42,9 +42,9 @@ RPC_I(struct inode *inode)
 extern int rpc_queue_upcall(struct inode *, struct rpc_pipe_msg *);
 
 extern struct dentry *rpc_mkdir(char *, struct rpc_clnt *);
-extern int rpc_rmdir(char *);
+extern int rpc_rmdir(struct dentry *);
 extern struct dentry *rpc_mkpipe(char *, void *, struct rpc_pipe_ops *, int flags);
-extern int rpc_unlink(char *);
+extern int rpc_unlink(struct dentry *);
 extern struct vfsmount *rpc_get_mount(void);
 extern void rpc_put_mount(void);
 
diff --git a/include/linux/sunrpc/xprt.h b/include/linux/sunrpc/xprt.h
index 840e47a4ccc5..3a0cca255b76 100644
--- a/include/linux/sunrpc/xprt.h
+++ b/include/linux/sunrpc/xprt.h
@@ -37,7 +37,7 @@ extern unsigned int xprt_max_resvport;
 
 #define RPC_MIN_RESVPORT        (1U)
 #define RPC_MAX_RESVPORT        (65535U)
-#define RPC_DEF_MIN_RESVPORT    (650U)
+#define RPC_DEF_MIN_RESVPORT    (665U)
 #define RPC_DEF_MAX_RESVPORT    (1023U)
 
 /*
diff --git a/include/linux/tty.h b/include/linux/tty.h
index e421d5e34818..04827ca65781 100644
--- a/include/linux/tty.h
+++ b/include/linux/tty.h
@@ -59,6 +59,7 @@ struct tty_bufhead {
         struct tty_buffer *head;        /* Queue head */
         struct tty_buffer *tail;        /* Active buffer */
         struct tty_buffer *free;        /* Free queue head */
+        int memory_used;                /* Buffer space used excluding free queue */
 };
 /*
  * The pty uses char_buf and flag_buf as a contiguous buffer
diff --git a/include/linux/vt.h b/include/linux/vt.h
index 8ab334a48222..ba806e8711be 100644
--- a/include/linux/vt.h
+++ b/include/linux/vt.h
@@ -60,5 +60,6 @@ struct vt_consize {
 #define VT_RESIZEX      0x560A  /* set kernel's idea of screensize + more */
 #define VT_LOCKSWITCH   0x560B  /* disallow vt switching */
 #define VT_UNLOCKSWITCH 0x560C  /* allow vt switching */
+#define VT_GETHIFONTMASK 0x560D  /* return hi font mask */
 
 #endif /* _LINUX_VT_H */
diff --git a/include/net/sctp/sctp.h b/include/net/sctp/sctp.h
index a9663b49ea54..92eae0e0f3f1 100644
--- a/include/net/sctp/sctp.h
+++ b/include/net/sctp/sctp.h
@@ -404,19 +404,6 @@ static inline int sctp_list_single_entry(struct list_head *head)
         return ((head->next != head) && (head->next == head->prev));
 }
 
-/* Calculate the size (in bytes) occupied by the data of an iovec.  */
-static inline size_t get_user_iov_size(struct iovec *iov, int iovlen)
-{
-        size_t retval = 0;
-
-        for (; iovlen > 0; --iovlen) {
-                retval += iov->iov_len;
-                iov++;
-        }
-
-        return retval;
-}
-
 /* Generate a random jitter in the range of -50% ~ +50% of input RTO. */
 static inline __s32 sctp_jitter(__u32 rto)
 {
diff --git a/include/net/sctp/sm.h b/include/net/sctp/sm.h
index 1eac3d0eb7a9..de313de4fefe 100644
--- a/include/net/sctp/sm.h
+++ b/include/net/sctp/sm.h
@@ -221,8 +221,7 @@ struct sctp_chunk *sctp_make_abort_no_data(const struct sctp_association *,
                                       const struct sctp_chunk *,
                                       __u32 tsn);
 struct sctp_chunk *sctp_make_abort_user(const struct sctp_association *,
-                                   const struct sctp_chunk *,
-                                   const struct msghdr *);
+                                        const struct msghdr *, size_t msg_len);
 struct sctp_chunk *sctp_make_abort_violation(const struct sctp_association *,
                                    const struct sctp_chunk *,
                                    const __u8 *,
diff --git a/include/scsi/libiscsi.h b/include/scsi/libiscsi.h
index ba2760802ded..41904f611d12 100644
--- a/include/scsi/libiscsi.h
+++ b/include/scsi/libiscsi.h
@@ -60,6 +60,7 @@ struct iscsi_nopin;
 #define TMABORT_SUCCESS                 0x1
 #define TMABORT_FAILED                  0x2
 #define TMABORT_TIMEDOUT                0x3
+#define TMABORT_NOT_FOUND               0x4
 
 /* Connection suspend "bit" */
 #define ISCSI_SUSPEND_BIT               1
@@ -83,6 +84,12 @@ struct iscsi_mgmt_task {
         struct list_head        running;
 };
 
+enum {
+        ISCSI_TASK_COMPLETED,
+        ISCSI_TASK_PENDING,
+        ISCSI_TASK_RUNNING,
+};
+
 struct iscsi_cmd_task {
         /*
          * Becuae LLDs allocate their hdr differently, this is a pointer to
@@ -101,6 +108,8 @@ struct iscsi_cmd_task {
         struct iscsi_conn       *conn;          /* used connection    */
         struct iscsi_mgmt_task  *mtask;         /* tmf mtask in progr */
 
+        /* state set/tested under session->lock */
+        int                     state;
         struct list_head        running;        /* running cmd list */
         void                    *dd_data;       /* driver/transport data */
 };
@@ -126,6 +135,14 @@ struct iscsi_conn {
         int                     id;             /* CID */
         struct list_head        item;           /* maintains list of conns */
         int                     c_stage;        /* connection state */
+        /*
+         * Preallocated buffer for pdus that have data but do not
+         * originate from scsi-ml. We never have two pdus using the
+         * buffer at the same time. It is only allocated to
+         * the default max recv size because the pdus we support
+         * should always fit in this buffer
+         */
+        char                    *data;
         struct iscsi_mgmt_task  *login_mtask;   /* mtask used for login/text */
         struct iscsi_mgmt_task  *mtask;         /* xmit mtask in progress */
         struct iscsi_cmd_task   *ctask;         /* xmit ctask in progress */
@@ -134,7 +151,7 @@ struct iscsi_conn {
         struct kfifo            *immqueue;      /* immediate xmit queue */
         struct kfifo            *mgmtqueue;     /* mgmt (control) xmit queue */
         struct list_head        mgmt_run_list;  /* list of control tasks */
-        struct kfifo            *xmitqueue;     /* data-path cmd queue */
+        struct list_head        xmitqueue;      /* data-path cmd queue */
         struct list_head        run_list;       /* list of cmds in progress */
         struct work_struct      xmitwork;       /* per-conn. xmit workqueue */
         /*
diff --git a/include/scsi/scsi_transport_iscsi.h b/include/scsi/scsi_transport_iscsi.h
index 5a3df1d7085f..39e833260bd0 100644
--- a/include/scsi/scsi_transport_iscsi.h
+++ b/include/scsi/scsi_transport_iscsi.h
@@ -57,8 +57,6 @@ struct sockaddr;
  * @stop_conn:          suspend/recover/terminate connection
  * @send_pdu:           send iSCSI PDU, Login, Logout, NOP-Out, Reject, Text.
  * @session_recovery_timedout: notify LLD a block during recovery timed out
- * @suspend_conn_recv:  susepend the recv side of the connection
- * @termincate_conn:    destroy socket connection. Called with mutex lock.
  * @init_cmd_task:      Initialize a iscsi_cmd_task and any internal structs.
  *                      Called from queuecommand with session lock held.
  * @init_mgmt_task:     Initialize a iscsi_mgmt_task and any internal structs.
@@ -112,8 +110,6 @@ struct iscsi_transport {
                          char *data, uint32_t data_size);
         void (*get_stats) (struct iscsi_cls_conn *conn,
                            struct iscsi_stats *stats);
-        void (*suspend_conn_recv) (struct iscsi_conn *conn);
-        void (*terminate_conn) (struct iscsi_conn *conn);
         void (*init_cmd_task) (struct iscsi_cmd_task *ctask);
         void (*init_mgmt_task) (struct iscsi_conn *conn,
                                 struct iscsi_mgmt_task *mtask,
diff --git a/kernel/cpuset.c b/kernel/cpuset.c
index 1a649f2bb9bb..4ea6f0dc2fc5 100644
--- a/kernel/cpuset.c
+++ b/kernel/cpuset.c
@@ -816,6 +816,10 @@ static int update_cpumask(struct cpuset *cs, char *buf)
         struct cpuset trialcs;
         int retval, cpus_unchanged;
 
+        /* top_cpuset.cpus_allowed tracks cpu_online_map; it's read-only */
+        if (cs == &top_cpuset)
+                return -EACCES;
+
         trialcs = *cs;
         retval = cpulist_parse(buf, trialcs.cpus_allowed);
         if (retval < 0)
@@ -2033,6 +2037,33 @@ out:
         return err;
 }
 
+/*
+ * The top_cpuset tracks what CPUs and Memory Nodes are online,
+ * period.  This is necessary in order to make cpusets transparent
+ * (of no affect) on systems that are actively using CPU hotplug
+ * but making no active use of cpusets.
+ *
+ * This handles CPU hotplug (cpuhp) events.  If someday Memory
+ * Nodes can be hotplugged (dynamically changing node_online_map)
+ * then we should handle that too, perhaps in a similar way.
+ */
+
+#ifdef CONFIG_HOTPLUG_CPU
+static int cpuset_handle_cpuhp(struct notifier_block *nb,
+                                unsigned long phase, void *cpu)
+{
+        mutex_lock(&manage_mutex);
+        mutex_lock(&callback_mutex);
+
+        top_cpuset.cpus_allowed = cpu_online_map;
+
+        mutex_unlock(&callback_mutex);
+        mutex_unlock(&manage_mutex);
+
+        return 0;
+}
+#endif
+
 /**
  * cpuset_init_smp - initialize cpus_allowed
  *
@@ -2043,6 +2074,8 @@ void __init cpuset_init_smp(void)
 {
         top_cpuset.cpus_allowed = cpu_online_map;
         top_cpuset.mems_allowed = node_online_map;
+
+        hotcpu_notifier(cpuset_handle_cpuhp, 0);
 }
 
 /**
@@ -2387,7 +2420,7 @@ EXPORT_SYMBOL_GPL(cpuset_mem_spread_node);
 int cpuset_excl_nodes_overlap(const struct task_struct *p)
 {
         const struct cpuset *cs1, *cs2; /* my and p's cpuset ancestors */
-        int overlap = 0;                /* do cpusets overlap? */
+        int overlap = 1;                /* do cpusets overlap? */
 
         task_lock(current);
         if (current->flags & PF_EXITING) {
diff --git a/kernel/futex.c b/kernel/futex.c
index d4633c588f33..b9b8aea5389e 100644
--- a/kernel/futex.c
+++ b/kernel/futex.c
@@ -397,7 +397,7 @@ static struct task_struct * futex_find_get_task(pid_t pid)
                 p = NULL;
                 goto out_unlock;
         }
-        if (p->state == EXIT_ZOMBIE || p->exit_state == EXIT_ZOMBIE) {
+        if (p->exit_state != 0) {
                 p = NULL;
                 goto out_unlock;
         }
diff --git a/kernel/sched.c b/kernel/sched.c
index a2be2d055299..a234fbee1238 100644
--- a/kernel/sched.c
+++ b/kernel/sched.c
@@ -4162,10 +4162,8 @@ do_sched_setscheduler(pid_t pid, int policy, struct sched_param __user *param)
                 read_unlock_irq(&tasklist_lock);
                 return -ESRCH;
         }
-        get_task_struct(p);
-        read_unlock_irq(&tasklist_lock);
         retval = sched_setscheduler(p, policy, &lparam);
-        put_task_struct(p);
+        read_unlock_irq(&tasklist_lock);
 
         return retval;
 }
diff --git a/kernel/stop_machine.c b/kernel/stop_machine.c
index dcfb5d731466..51cacd111dbd 100644
--- a/kernel/stop_machine.c
+++ b/kernel/stop_machine.c
@@ -111,7 +111,6 @@ static int stop_machine(void)
         /* If some failed, kill them all. */
         if (ret < 0) {
                 stopmachine_set_state(STOPMACHINE_EXIT);
-                up(&stopmachine_mutex);
                 return ret;
         }
 
diff --git a/lib/ts_bm.c b/lib/ts_bm.c
index 0110e4414805..d90822c378a4 100644
--- a/lib/ts_bm.c
+++ b/lib/ts_bm.c
@@ -111,15 +111,14 @@ static int subpattern(u8 *pattern, int i, int j, int g)
         return ret;
 }
 
-static void compute_prefix_tbl(struct ts_bm *bm, const u8 *pattern,
-                               unsigned int len)
+static void compute_prefix_tbl(struct ts_bm *bm)
 {
         int i, j, g;
 
         for (i = 0; i < ASIZE; i++)
-                bm->bad_shift[i] = len;
-        for (i = 0; i < len - 1; i++)
-                bm->bad_shift[pattern[i]] = len - 1 - i;
+                bm->bad_shift[i] = bm->patlen;
+        for (i = 0; i < bm->patlen - 1; i++)
+                bm->bad_shift[bm->pattern[i]] = bm->patlen - 1 - i;
 
         /* Compute the good shift array, used to match reocurrences 
          * of a subpattern */
@@ -150,8 +149,8 @@ static struct ts_config *bm_init(const void *pattern, unsigned int len,
         bm = ts_config_priv(conf);
         bm->patlen = len;
         bm->pattern = (u8 *) bm->good_shift + prefix_tbl_len;
-        compute_prefix_tbl(bm, pattern, len);
         memcpy(bm->pattern, pattern, len);
+        compute_prefix_tbl(bm);
 
         return conf;
 }
diff --git a/mm/swapfile.c b/mm/swapfile.c
index e70d6c6d6fee..f1f5ec783781 100644
--- a/mm/swapfile.c
+++ b/mm/swapfile.c
@@ -442,11 +442,12 @@ int swap_type_of(dev_t device)
 
                 if (!(swap_info[i].flags & SWP_WRITEOK))
                         continue;
+
                 if (!device) {
                         spin_unlock(&swap_lock);
                         return i;
                 }
-                inode = swap_info->swap_file->f_dentry->d_inode;
+                inode = swap_info[i].swap_file->f_dentry->d_inode;
                 if (S_ISBLK(inode->i_mode) &&
                     device == MKDEV(imajor(inode), iminor(inode))) {
                         spin_unlock(&swap_lock);
diff --git a/net/bridge/br_forward.c b/net/bridge/br_forward.c
index 6ccd32b30809..864fbbc7b24d 100644
--- a/net/bridge/br_forward.c
+++ b/net/bridge/br_forward.c
@@ -40,11 +40,15 @@ int br_dev_queue_push_xmit(struct sk_buff *skb)
         else {
 #ifdef CONFIG_BRIDGE_NETFILTER
                 /* ip_refrag calls ip_fragment, doesn't copy the MAC header. */
-                nf_bridge_maybe_copy_header(skb);
+                if (nf_bridge_maybe_copy_header(skb))
+                        kfree_skb(skb);
+                else
 #endif
-                skb_push(skb, ETH_HLEN);
+                {
+                        skb_push(skb, ETH_HLEN);
 
-                dev_queue_xmit(skb);
+                        dev_queue_xmit(skb);
+                }
         }
 
         return 0;
diff --git a/net/dccp/ccids/ccid3.c b/net/dccp/ccids/ccid3.c
index c39bff706cfc..090bc39e8199 100644
--- a/net/dccp/ccids/ccid3.c
+++ b/net/dccp/ccids/ccid3.c
@@ -2,7 +2,7 @@
  *  net/dccp/ccids/ccid3.c
  *
  *  Copyright (c) 2005 The University of Waikato, Hamilton, New Zealand.
- *  Copyright (c) 2005-6 Ian McDonald <imcdnzl@gmail.com>
+ *  Copyright (c) 2005-6 Ian McDonald <ian.mcdonald@jandi.co.nz>
  *
  *  An implementation of the DCCP protocol
  *
@@ -342,6 +342,8 @@ static int ccid3_hc_tx_send_packet(struct sock *sk,
                 new_packet->dccphtx_ccval =
                         DCCP_SKB_CB(skb)->dccpd_ccval =
                                 hctx->ccid3hctx_last_win_count;
+                timeval_add_usecs(&hctx->ccid3hctx_t_nom,
+                                  hctx->ccid3hctx_t_ipi);
         }
 out:
         return rc;
@@ -413,7 +415,8 @@ static void ccid3_hc_tx_packet_sent(struct sock *sk, int more, int len)
         case TFRC_SSTATE_NO_FBACK:
         case TFRC_SSTATE_FBACK:
                 if (len > 0) {
-                        hctx->ccid3hctx_t_nom = now;
+                        timeval_sub_usecs(&hctx->ccid3hctx_t_nom,
+                                  hctx->ccid3hctx_t_ipi);
                         ccid3_calc_new_t_ipi(hctx);
                         ccid3_calc_new_delta(hctx);
                         timeval_add_usecs(&hctx->ccid3hctx_t_nom,
@@ -757,8 +760,7 @@ static void ccid3_hc_rx_send_feedback(struct sock *sk)
         }
 
         hcrx->ccid3hcrx_tstamp_last_feedback = now;
-        hcrx->ccid3hcrx_last_counter         = packet->dccphrx_ccval;
-        hcrx->ccid3hcrx_seqno_last_counter   = packet->dccphrx_seqno;
+        hcrx->ccid3hcrx_ccval_last_counter   = packet->dccphrx_ccval;
         hcrx->ccid3hcrx_bytes_recv           = 0;
 
         /* Convert to multiples of 10us */
@@ -782,7 +784,7 @@ static int ccid3_hc_rx_insert_options(struct sock *sk, struct sk_buff *skb)
         if (!(sk->sk_state == DCCP_OPEN || sk->sk_state == DCCP_PARTOPEN))
                 return 0;
 
-        DCCP_SKB_CB(skb)->dccpd_ccval = hcrx->ccid3hcrx_last_counter;
+        DCCP_SKB_CB(skb)->dccpd_ccval = hcrx->ccid3hcrx_ccval_last_counter;
 
         if (dccp_packet_without_ack(skb))
                 return 0;
@@ -854,6 +856,11 @@ static u32 ccid3_hc_rx_calc_first_li(struct sock *sk)
                 interval = 1;
         }
 found:
+        if (!tail) {
+                LIMIT_NETDEBUG(KERN_WARNING "%s: tail is null\n",
+                   __FUNCTION__);
+                return ~0;
+        }
         rtt = timeval_delta(&tstamp, &tail->dccphrx_tstamp) * 4 / interval;
         ccid3_pr_debug("%s, sk=%p, approximated RTT to %uus\n",
                        dccp_role(sk), sk, rtt);
@@ -864,9 +871,20 @@ found:
         delta = timeval_delta(&tstamp, &hcrx->ccid3hcrx_tstamp_last_feedback);
         x_recv = usecs_div(hcrx->ccid3hcrx_bytes_recv, delta);
 
+        if (x_recv == 0)
+                x_recv = hcrx->ccid3hcrx_x_recv;
+
         tmp1 = (u64)x_recv * (u64)rtt;
         do_div(tmp1,10000000);
         tmp2 = (u32)tmp1;
+
+        if (!tmp2) {
+                LIMIT_NETDEBUG(KERN_WARNING "tmp2 = 0 "
+                   "%s: x_recv = %u, rtt =%u\n",
+                   __FUNCTION__, x_recv, rtt);
+                return ~0;
+        }
+
         fval = (hcrx->ccid3hcrx_s * 100000) / tmp2;
         /* do not alter order above or you will get overflow on 32 bit */
         p = tfrc_calc_x_reverse_lookup(fval);
@@ -882,31 +900,101 @@ found:
 static void ccid3_hc_rx_update_li(struct sock *sk, u64 seq_loss, u8 win_loss)
 {
         struct ccid3_hc_rx_sock *hcrx = ccid3_hc_rx_sk(sk);
+        struct dccp_li_hist_entry *next, *head;
+        u64 seq_temp;
 
-        if (seq_loss != DCCP_MAX_SEQNO + 1 &&
-            list_empty(&hcrx->ccid3hcrx_li_hist)) {
-                struct dccp_li_hist_entry *li_tail;
+        if (list_empty(&hcrx->ccid3hcrx_li_hist)) {
+                if (!dccp_li_hist_interval_new(ccid3_li_hist,
+                   &hcrx->ccid3hcrx_li_hist, seq_loss, win_loss))
+                        return;
 
-                li_tail = dccp_li_hist_interval_new(ccid3_li_hist,
-                                                    &hcrx->ccid3hcrx_li_hist,
-                                                    seq_loss, win_loss);
-                if (li_tail == NULL)
+                next = (struct dccp_li_hist_entry *)
+                   hcrx->ccid3hcrx_li_hist.next;
+                next->dccplih_interval = ccid3_hc_rx_calc_first_li(sk);
+        } else {
+                struct dccp_li_hist_entry *entry;
+                struct list_head *tail;
+
+                head = (struct dccp_li_hist_entry *)
+                   hcrx->ccid3hcrx_li_hist.next;
+                /* FIXME win count check removed as was wrong */
+                /* should make this check with receive history */
+                /* and compare there as per section 10.2 of RFC4342 */
+
+                /* new loss event detected */
+                /* calculate last interval length */
+                seq_temp = dccp_delta_seqno(head->dccplih_seqno, seq_loss);
+                entry = dccp_li_hist_entry_new(ccid3_li_hist, SLAB_ATOMIC);
+
+                if (entry == NULL) {
+                        printk(KERN_CRIT "%s: out of memory\n",__FUNCTION__);
+                        dump_stack();
                         return;
-                li_tail->dccplih_interval = ccid3_hc_rx_calc_first_li(sk);
-        } else
-                    LIMIT_NETDEBUG(KERN_WARNING "%s: FIXME: find end of "
-                                   "interval\n", __FUNCTION__);
+                }
+
+                list_add(&entry->dccplih_node, &hcrx->ccid3hcrx_li_hist);
+
+                tail = hcrx->ccid3hcrx_li_hist.prev;
+                list_del(tail);
+                kmem_cache_free(ccid3_li_hist->dccplih_slab, tail);
+
+                /* Create the newest interval */
+                entry->dccplih_seqno = seq_loss;
+                entry->dccplih_interval = seq_temp;
+                entry->dccplih_win_count = win_loss;
+        }
 }
 
-static void ccid3_hc_rx_detect_loss(struct sock *sk)
+static int ccid3_hc_rx_detect_loss(struct sock *sk,
+                                    struct dccp_rx_hist_entry *packet)
 {
         struct ccid3_hc_rx_sock *hcrx = ccid3_hc_rx_sk(sk);
-        u8 win_loss;
-        const u64 seq_loss = dccp_rx_hist_detect_loss(&hcrx->ccid3hcrx_hist,
-                                                      &hcrx->ccid3hcrx_li_hist,
-                                                      &win_loss);
+        struct dccp_rx_hist_entry *rx_hist = dccp_rx_hist_head(&hcrx->ccid3hcrx_hist);
+        u64 seqno = packet->dccphrx_seqno;
+        u64 tmp_seqno;
+        int loss = 0;
+        u8 ccval;
+
+
+        tmp_seqno = hcrx->ccid3hcrx_seqno_nonloss;
+
+        if (!rx_hist ||
+           follows48(packet->dccphrx_seqno, hcrx->ccid3hcrx_seqno_nonloss)) {
+                hcrx->ccid3hcrx_seqno_nonloss = seqno;
+                hcrx->ccid3hcrx_ccval_nonloss = packet->dccphrx_ccval;
+                goto detect_out;
+        }
+
 
-        ccid3_hc_rx_update_li(sk, seq_loss, win_loss);
+        while (dccp_delta_seqno(hcrx->ccid3hcrx_seqno_nonloss, seqno)
+           > TFRC_RECV_NUM_LATE_LOSS) {
+                loss = 1;
+                ccid3_hc_rx_update_li(sk, hcrx->ccid3hcrx_seqno_nonloss,
+                   hcrx->ccid3hcrx_ccval_nonloss);
+                tmp_seqno = hcrx->ccid3hcrx_seqno_nonloss;
+                dccp_inc_seqno(&tmp_seqno);
+                hcrx->ccid3hcrx_seqno_nonloss = tmp_seqno;
+                dccp_inc_seqno(&tmp_seqno);
+                while (dccp_rx_hist_find_entry(&hcrx->ccid3hcrx_hist,
+                   tmp_seqno, &ccval)) {
+                        hcrx->ccid3hcrx_seqno_nonloss = tmp_seqno;
+                        hcrx->ccid3hcrx_ccval_nonloss = ccval;
+                        dccp_inc_seqno(&tmp_seqno);
+                }
+        }
+
+        /* FIXME - this code could be simplified with above while */
+        /* but works at moment */
+        if (follows48(packet->dccphrx_seqno, hcrx->ccid3hcrx_seqno_nonloss)) {
+                hcrx->ccid3hcrx_seqno_nonloss = seqno;
+                hcrx->ccid3hcrx_ccval_nonloss = packet->dccphrx_ccval;
+        }
+
+detect_out:
+        dccp_rx_hist_add_packet(ccid3_rx_hist, &hcrx->ccid3hcrx_hist,
+                   &hcrx->ccid3hcrx_li_hist, packet,
+                   hcrx->ccid3hcrx_seqno_nonloss);
+        return loss;
 }
 
 static void ccid3_hc_rx_packet_recv(struct sock *sk, struct sk_buff *skb)
@@ -916,8 +1004,8 @@ static void ccid3_hc_rx_packet_recv(struct sock *sk, struct sk_buff *skb)
         struct dccp_rx_hist_entry *packet;
         struct timeval now;
         u8 win_count;
-        u32 p_prev, r_sample, t_elapsed;
-        int ins;
+        u32 p_prev, rtt_prev, r_sample, t_elapsed;
+        int loss;
 
         BUG_ON(hcrx == NULL ||
                !(hcrx->ccid3hcrx_state == TFRC_RSTATE_NO_DATA ||
@@ -932,7 +1020,7 @@ static void ccid3_hc_rx_packet_recv(struct sock *sk, struct sk_buff *skb)
         case DCCP_PKT_DATAACK:
                 if (opt_recv->dccpor_timestamp_echo == 0)
                         break;
-                p_prev = hcrx->ccid3hcrx_rtt;
+                rtt_prev = hcrx->ccid3hcrx_rtt;
                 dccp_timestamp(sk, &now);
                 timeval_sub_usecs(&now, opt_recv->dccpor_timestamp_echo * 10);
                 r_sample = timeval_usecs(&now);
@@ -951,8 +1039,8 @@ static void ccid3_hc_rx_packet_recv(struct sock *sk, struct sk_buff *skb)
                         hcrx->ccid3hcrx_rtt = (hcrx->ccid3hcrx_rtt * 9) / 10 +
                                               r_sample / 10;
 
-                if (p_prev != hcrx->ccid3hcrx_rtt)
-                        ccid3_pr_debug("%s, New RTT=%luus, elapsed time=%u\n",
+                if (rtt_prev != hcrx->ccid3hcrx_rtt)
+                        ccid3_pr_debug("%s, New RTT=%uus, elapsed time=%u\n",
                                        dccp_role(sk), hcrx->ccid3hcrx_rtt,
                                        opt_recv->dccpor_elapsed_time);
                 break;
@@ -973,8 +1061,7 @@ static void ccid3_hc_rx_packet_recv(struct sock *sk, struct sk_buff *skb)
 
         win_count = packet->dccphrx_ccval;
 
-        ins = dccp_rx_hist_add_packet(ccid3_rx_hist, &hcrx->ccid3hcrx_hist,
-                                      &hcrx->ccid3hcrx_li_hist, packet);
+        loss = ccid3_hc_rx_detect_loss(sk, packet);
 
         if (DCCP_SKB_CB(skb)->dccpd_type == DCCP_PKT_ACK)
                 return;
@@ -991,7 +1078,7 @@ static void ccid3_hc_rx_packet_recv(struct sock *sk, struct sk_buff *skb)
         case TFRC_RSTATE_DATA:
                 hcrx->ccid3hcrx_bytes_recv += skb->len -
                                               dccp_hdr(skb)->dccph_doff * 4;
-                if (ins != 0)
+                if (loss)
                         break;
 
                 dccp_timestamp(sk, &now);
@@ -1012,7 +1099,6 @@ static void ccid3_hc_rx_packet_recv(struct sock *sk, struct sk_buff *skb)
         ccid3_pr_debug("%s, sk=%p(%s), data loss! Reacting...\n",
                        dccp_role(sk), sk, dccp_state_name(sk->sk_state));
 
-        ccid3_hc_rx_detect_loss(sk);
         p_prev = hcrx->ccid3hcrx_p;
         
         /* Calculate loss event rate */
@@ -1022,6 +1108,9 @@ static void ccid3_hc_rx_packet_recv(struct sock *sk, struct sk_buff *skb)
                 /* Scaling up by 1000000 as fixed decimal */
                 if (i_mean != 0)
                         hcrx->ccid3hcrx_p = 1000000 / i_mean;
+        } else {
+                printk(KERN_CRIT "%s: empty loss hist\n",__FUNCTION__);
+                dump_stack();
         }
 
         if (hcrx->ccid3hcrx_p > p_prev) {
@@ -1230,7 +1319,7 @@ static __exit void ccid3_module_exit(void)
 }
 module_exit(ccid3_module_exit);
 
-MODULE_AUTHOR("Ian McDonald <iam4@cs.waikato.ac.nz>, "
+MODULE_AUTHOR("Ian McDonald <ian.mcdonald@jandi.co.nz>, "
               "Arnaldo Carvalho de Melo <acme@ghostprotocols.net>");
 MODULE_DESCRIPTION("DCCP TFRC CCID3 CCID");
 MODULE_LICENSE("GPL");
diff --git a/net/dccp/ccids/ccid3.h b/net/dccp/ccids/ccid3.h
index 5ade4f668b22..0a2cb7536d26 100644
--- a/net/dccp/ccids/ccid3.h
+++ b/net/dccp/ccids/ccid3.h
@@ -1,13 +1,13 @@
 /*
  *  net/dccp/ccids/ccid3.h
  *
- *  Copyright (c) 2005 The University of Waikato, Hamilton, New Zealand.
+ *  Copyright (c) 2005-6 The University of Waikato, Hamilton, New Zealand.
  *
  *  An implementation of the DCCP protocol
  *
  *  This code has been developed by the University of Waikato WAND
  *  research group. For further information please see http://www.wand.net.nz/
- *  or e-mail Ian McDonald - iam4@cs.waikato.ac.nz
+ *  or e-mail Ian McDonald - ian.mcdonald@jandi.co.nz
  *
  *  This code also uses code from Lulea University, rereleased as GPL by its
  *  authors:
@@ -120,9 +120,10 @@ struct ccid3_hc_rx_sock {
 #define ccid3hcrx_x_recv        ccid3hcrx_tfrc.tfrcrx_x_recv
 #define ccid3hcrx_rtt           ccid3hcrx_tfrc.tfrcrx_rtt
 #define ccid3hcrx_p             ccid3hcrx_tfrc.tfrcrx_p
-        u64                     ccid3hcrx_seqno_last_counter:48,
+        u64                     ccid3hcrx_seqno_nonloss:48,
+                                ccid3hcrx_ccval_nonloss:4,
                                 ccid3hcrx_state:8,
-                                ccid3hcrx_last_counter:4;
+                                ccid3hcrx_ccval_last_counter:4;
         u32                     ccid3hcrx_bytes_recv;
         struct timeval          ccid3hcrx_tstamp_last_feedback;
         struct timeval          ccid3hcrx_tstamp_last_ack;
diff --git a/net/dccp/ccids/lib/loss_interval.c b/net/dccp/ccids/lib/loss_interval.c
index 5d7b7d864385..906c81ab9d4f 100644
--- a/net/dccp/ccids/lib/loss_interval.c
+++ b/net/dccp/ccids/lib/loss_interval.c
@@ -2,7 +2,7 @@
  *  net/dccp/ccids/lib/loss_interval.c
  *
  *  Copyright (c) 2005 The University of Waikato, Hamilton, New Zealand.
- *  Copyright (c) 2005 Ian McDonald <iam4@cs.waikato.ac.nz>
+ *  Copyright (c) 2005-6 Ian McDonald <ian.mcdonald@jandi.co.nz>
  *  Copyright (c) 2005 Arnaldo Carvalho de Melo <acme@conectiva.com.br>
  *
  *  This program is free software; you can redistribute it and/or modify
@@ -12,6 +12,7 @@
  */
 
 #include <linux/module.h>
+#include <net/sock.h>
 
 #include "loss_interval.h"
 
@@ -90,13 +91,13 @@ u32 dccp_li_hist_calc_i_mean(struct list_head *list)
         u32 w_tot  = 0;
 
         list_for_each_entry_safe(li_entry, li_next, list, dccplih_node) {
-                if (i < DCCP_LI_HIST_IVAL_F_LENGTH) {
+                if (li_entry->dccplih_interval != ~0) {
                         i_tot0 += li_entry->dccplih_interval * dccp_li_hist_w[i];
                         w_tot  += dccp_li_hist_w[i];
+                        if (i != 0)
+                                i_tot1 += li_entry->dccplih_interval * dccp_li_hist_w[i - 1];
                 }
 
-                if (i != 0)
-                        i_tot1 += li_entry->dccplih_interval * dccp_li_hist_w[i - 1];
 
                 if (++i > DCCP_LI_HIST_IVAL_F_LENGTH)
                         break;
@@ -107,37 +108,36 @@ u32 dccp_li_hist_calc_i_mean(struct list_head *list)
 
         i_tot = max(i_tot0, i_tot1);
 
-        /* FIXME: Why do we do this? -Ian McDonald */
-        if (i_tot * 4 < w_tot)
-                i_tot = w_tot * 4;
+        if (!w_tot) {
+                LIMIT_NETDEBUG(KERN_WARNING "%s: w_tot = 0\n", __FUNCTION__);
+                return 1;
+        }
 
-        return i_tot * 4 / w_tot;
+        return i_tot / w_tot;
 }
 
 EXPORT_SYMBOL_GPL(dccp_li_hist_calc_i_mean);
 
-struct dccp_li_hist_entry *dccp_li_hist_interval_new(struct dccp_li_hist *hist,
-                                                     struct list_head *list,
-                                                     const u64 seq_loss,
-                                                     const u8 win_loss)
+int dccp_li_hist_interval_new(struct dccp_li_hist *hist,
+   struct list_head *list, const u64 seq_loss, const u8 win_loss)
 {
-        struct dccp_li_hist_entry *tail = NULL, *entry;
+        struct dccp_li_hist_entry *entry;
         int i;
 
-        for (i = 0; i <= DCCP_LI_HIST_IVAL_F_LENGTH; ++i) {
+        for (i = 0; i < DCCP_LI_HIST_IVAL_F_LENGTH; i++) {
                 entry = dccp_li_hist_entry_new(hist, SLAB_ATOMIC);
                 if (entry == NULL) {
                         dccp_li_hist_purge(hist, list);
-                        return NULL;
+                        dump_stack();
+                        return 0;
                 }
-                if (tail == NULL)
-                        tail = entry;
+                entry->dccplih_interval = ~0;
                 list_add(&entry->dccplih_node, list);
         }
 
         entry->dccplih_seqno     = seq_loss;
         entry->dccplih_win_count = win_loss;
-        return tail;
+        return 1;
 }
 
 EXPORT_SYMBOL_GPL(dccp_li_hist_interval_new);
diff --git a/net/dccp/ccids/lib/loss_interval.h b/net/dccp/ccids/lib/loss_interval.h
index 43bf78269d1d..0ae85f0340b2 100644
--- a/net/dccp/ccids/lib/loss_interval.h
+++ b/net/dccp/ccids/lib/loss_interval.h
@@ -4,7 +4,7 @@
  *  net/dccp/ccids/lib/loss_interval.h
  *
  *  Copyright (c) 2005 The University of Waikato, Hamilton, New Zealand.
- *  Copyright (c) 2005 Ian McDonald <iam4@cs.waikato.ac.nz>
+ *  Copyright (c) 2005 Ian McDonald <ian.mcdonald@jandi.co.nz>
  *  Copyright (c) 2005 Arnaldo Carvalho de Melo <acme@conectiva.com.br>
  *
  *  This program is free software; you can redistribute it and/or modify it
@@ -52,9 +52,6 @@ extern void dccp_li_hist_purge(struct dccp_li_hist *hist,
 
 extern u32 dccp_li_hist_calc_i_mean(struct list_head *list);
 
-extern struct dccp_li_hist_entry *
-                        dccp_li_hist_interval_new(struct dccp_li_hist *hist,
-                                                  struct list_head *list,
-                                                  const u64 seq_loss,
-                                                  const u8 win_loss);
+extern int dccp_li_hist_interval_new(struct dccp_li_hist *hist,
+   struct list_head *list, const u64 seq_loss, const u8 win_loss);
 #endif /* _DCCP_LI_HIST_ */
diff --git a/net/dccp/ccids/lib/packet_history.c b/net/dccp/ccids/lib/packet_history.c
index ad98d6a322eb..b876c9c81c65 100644
--- a/net/dccp/ccids/lib/packet_history.c
+++ b/net/dccp/ccids/lib/packet_history.c
@@ -1,13 +1,13 @@
 /*
- *  net/dccp/packet_history.h
+ *  net/dccp/packet_history.c
  *
- *  Copyright (c) 2005 The University of Waikato, Hamilton, New Zealand.
+ *  Copyright (c) 2005-6 The University of Waikato, Hamilton, New Zealand.
  *
  *  An implementation of the DCCP protocol
  *
  *  This code has been developed by the University of Waikato WAND
  *  research group. For further information please see http://www.wand.net.nz/
- *  or e-mail Ian McDonald - iam4@cs.waikato.ac.nz
+ *  or e-mail Ian McDonald - ian.mcdonald@jandi.co.nz
  *
  *  This code also uses code from Lulea University, rereleased as GPL by its
  *  authors:
@@ -112,64 +112,27 @@ struct dccp_rx_hist_entry *
 
 EXPORT_SYMBOL_GPL(dccp_rx_hist_find_data_packet);
 
-int dccp_rx_hist_add_packet(struct dccp_rx_hist *hist,
+void dccp_rx_hist_add_packet(struct dccp_rx_hist *hist,
                             struct list_head *rx_list,
                             struct list_head *li_list,
-                            struct dccp_rx_hist_entry *packet)
+                            struct dccp_rx_hist_entry *packet,
+                            u64 nonloss_seqno)
 {
-        struct dccp_rx_hist_entry *entry, *next, *iter;
+        struct dccp_rx_hist_entry *entry, *next;
         u8 num_later = 0;
 
-        iter = dccp_rx_hist_head(rx_list);
-        if (iter == NULL)
-                dccp_rx_hist_add_entry(rx_list, packet);
-        else {
-                const u64 seqno = packet->dccphrx_seqno;
-
-                if (after48(seqno, iter->dccphrx_seqno))
-                        dccp_rx_hist_add_entry(rx_list, packet);
-                else {
-                        if (dccp_rx_hist_entry_data_packet(iter))
-                                num_later = 1;
-
-                        list_for_each_entry_continue(iter, rx_list,
-                                                     dccphrx_node) {
-                                if (after48(seqno, iter->dccphrx_seqno)) {
-                                        dccp_rx_hist_add_entry(&iter->dccphrx_node,
-                                                               packet);
-                                        goto trim_history;
-                                }
-
-                                if (dccp_rx_hist_entry_data_packet(iter))
-                                        num_later++;
+        list_add(&packet->dccphrx_node, rx_list);
 
-                                if (num_later == TFRC_RECV_NUM_LATE_LOSS) {
-                                        dccp_rx_hist_entry_delete(hist, packet);
-                                        return 1;
-                                }
-                        }
-
-                        if (num_later < TFRC_RECV_NUM_LATE_LOSS)
-                                dccp_rx_hist_add_entry(rx_list, packet);
-                        /*
-                         * FIXME: else what? should we destroy the packet
-                         * like above?
-                         */
-                }
-        }
-
-trim_history:
-        /*
-         * Trim history (remove all packets after the NUM_LATE_LOSS + 1
-         * data packets)
-         */
         num_later = TFRC_RECV_NUM_LATE_LOSS + 1;
 
         if (!list_empty(li_list)) {
                 list_for_each_entry_safe(entry, next, rx_list, dccphrx_node) {
                         if (num_later == 0) {
-                                list_del_init(&entry->dccphrx_node);
-                                dccp_rx_hist_entry_delete(hist, entry);
+                                if (after48(nonloss_seqno,
+                                   entry->dccphrx_seqno)) {
+                                        list_del_init(&entry->dccphrx_node);
+                                        dccp_rx_hist_entry_delete(hist, entry);
+                                }
                         } else if (dccp_rx_hist_entry_data_packet(entry))
                                 --num_later;
                 }
@@ -217,94 +180,10 @@ trim_history:
                                 --num_later;
                 }
         }
-
-        return 0;
 }
 
 EXPORT_SYMBOL_GPL(dccp_rx_hist_add_packet);
 
-u64 dccp_rx_hist_detect_loss(struct list_head *rx_list,
-                             struct list_head *li_list, u8 *win_loss)
-{
-        struct dccp_rx_hist_entry *entry, *next, *packet;
-        struct dccp_rx_hist_entry *a_loss = NULL;
-        struct dccp_rx_hist_entry *b_loss = NULL;
-        u64 seq_loss = DCCP_MAX_SEQNO + 1;
-        u8 num_later = TFRC_RECV_NUM_LATE_LOSS;
-
-        list_for_each_entry_safe(entry, next, rx_list, dccphrx_node) {
-                if (num_later == 0) {
-                        b_loss = entry;
-                        break;
-                } else if (dccp_rx_hist_entry_data_packet(entry))
-                        --num_later;
-        }
-
-        if (b_loss == NULL)
-                goto out;
-
-        num_later = 1;
-        list_for_each_entry_safe_continue(entry, next, rx_list, dccphrx_node) {
-                if (num_later == 0) {
-                        a_loss = entry;
-                        break;
-                } else if (dccp_rx_hist_entry_data_packet(entry))
-                        --num_later;
-        }
-
-        if (a_loss == NULL) {
-                if (list_empty(li_list)) {
-                        /* no loss event have occured yet */
-                        LIMIT_NETDEBUG("%s: TODO: find a lost data packet by "
-                                       "comparing to initial seqno\n",
-                                       __FUNCTION__);
-                        goto out;
-                } else {
-                        LIMIT_NETDEBUG("%s: Less than 4 data pkts in history!",
-                                       __FUNCTION__);
-                        goto out;
-                }
-        }
-
-        /* Locate a lost data packet */
-        entry = packet = b_loss;
-        list_for_each_entry_safe_continue(entry, next, rx_list, dccphrx_node) {
-                u64 delta = dccp_delta_seqno(entry->dccphrx_seqno,
-                                             packet->dccphrx_seqno);
-
-                if (delta != 0) {
-                        if (dccp_rx_hist_entry_data_packet(packet))
-                                --delta;
-                        /*
-                         * FIXME: check this, probably this % usage is because
-                         * in earlier drafts the ndp count was just 8 bits
-                         * long, but now it cam be up to 24 bits long.
-                         */
-#if 0
-                        if (delta % DCCP_NDP_LIMIT !=
-                            (packet->dccphrx_ndp -
-                             entry->dccphrx_ndp) % DCCP_NDP_LIMIT)
-#endif
-                        if (delta != packet->dccphrx_ndp - entry->dccphrx_ndp) {
-                                seq_loss = entry->dccphrx_seqno;
-                                dccp_inc_seqno(&seq_loss);
-                        }
-                }
-                packet = entry;
-                if (packet == a_loss)
-                        break;
-        }
-out:
-        if (seq_loss != DCCP_MAX_SEQNO + 1)
-                *win_loss = a_loss->dccphrx_ccval;
-        else
-                *win_loss = 0; /* Paranoia */
-
-        return seq_loss;
-}
-
-EXPORT_SYMBOL_GPL(dccp_rx_hist_detect_loss);
-
 struct dccp_tx_hist *dccp_tx_hist_new(const char *name)
 {
         struct dccp_tx_hist *hist = kmalloc(sizeof(*hist), GFP_ATOMIC);
@@ -365,6 +244,25 @@ struct dccp_tx_hist_entry *
 
 EXPORT_SYMBOL_GPL(dccp_tx_hist_find_entry);
 
+int dccp_rx_hist_find_entry(const struct list_head *list, const u64 seq,
+   u8 *ccval)
+{
+        struct dccp_rx_hist_entry *packet = NULL, *entry;
+
+        list_for_each_entry(entry, list, dccphrx_node)
+                if (entry->dccphrx_seqno == seq) {
+                        packet = entry;
+                        break;
+                }
+
+        if (packet)
+                *ccval = packet->dccphrx_ccval;
+
+        return packet != NULL;
+}
+
+EXPORT_SYMBOL_GPL(dccp_rx_hist_find_entry);
+
 void dccp_tx_hist_purge_older(struct dccp_tx_hist *hist,
                               struct list_head *list,
                               struct dccp_tx_hist_entry *packet)
@@ -391,7 +289,7 @@ void dccp_tx_hist_purge(struct dccp_tx_hist *hist, struct list_head *list)
 
 EXPORT_SYMBOL_GPL(dccp_tx_hist_purge);
 
-MODULE_AUTHOR("Ian McDonald <iam4@cs.waikato.ac.nz>, "
+MODULE_AUTHOR("Ian McDonald <ian.mcdonald@jandi.co.nz>, "
               "Arnaldo Carvalho de Melo <acme@ghostprotocols.net>");
 MODULE_DESCRIPTION("DCCP TFRC library");
 MODULE_LICENSE("GPL");
diff --git a/net/dccp/ccids/lib/packet_history.h b/net/dccp/ccids/lib/packet_history.h
index 673c209e4e85..067cf1c85a37 100644
--- a/net/dccp/ccids/lib/packet_history.h
+++ b/net/dccp/ccids/lib/packet_history.h
@@ -1,13 +1,13 @@
 /*
  *  net/dccp/packet_history.h
  *
- *  Copyright (c) 2005 The University of Waikato, Hamilton, New Zealand.
+ *  Copyright (c) 2005-6 The University of Waikato, Hamilton, New Zealand.
  *
  *  An implementation of the DCCP protocol
  *
  *  This code has been developed by the University of Waikato WAND
  *  research group. For further information please see http://www.wand.net.nz/
- *  or e-mail Ian McDonald - iam4@cs.waikato.ac.nz
+ *  or e-mail Ian McDonald - ian.mcdonald@jandi.co.nz
  *
  *  This code also uses code from Lulea University, rereleased as GPL by its
  *  authors:
@@ -106,6 +106,8 @@ static inline void dccp_tx_hist_entry_delete(struct dccp_tx_hist *hist,
 extern struct dccp_tx_hist_entry *
                         dccp_tx_hist_find_entry(const struct list_head *list,
                                                 const u64 seq);
+extern int dccp_rx_hist_find_entry(const struct list_head *list, const u64 seq,
+   u8 *ccval);
 
 static inline void dccp_tx_hist_add_entry(struct list_head *list,
                                           struct dccp_tx_hist_entry *entry)
@@ -164,12 +166,6 @@ static inline void dccp_rx_hist_entry_delete(struct dccp_rx_hist *hist,
 extern void dccp_rx_hist_purge(struct dccp_rx_hist *hist,
                                struct list_head *list);
 
-static inline void dccp_rx_hist_add_entry(struct list_head *list,
-                                          struct dccp_rx_hist_entry *entry)
-{
-        list_add(&entry->dccphrx_node, list);
-}
-
 static inline struct dccp_rx_hist_entry *
                 dccp_rx_hist_head(struct list_head *list)
 {
@@ -188,10 +184,11 @@ static inline int
                entry->dccphrx_type == DCCP_PKT_DATAACK;
 }
 
-extern int dccp_rx_hist_add_packet(struct dccp_rx_hist *hist,
+extern void dccp_rx_hist_add_packet(struct dccp_rx_hist *hist,
                                    struct list_head *rx_list,
                                    struct list_head *li_list,
-                                   struct dccp_rx_hist_entry *packet);
+                                   struct dccp_rx_hist_entry *packet,
+                                   u64 nonloss_seqno);
 
 extern u64 dccp_rx_hist_detect_loss(struct list_head *rx_list,
                                     struct list_head *li_list, u8 *win_loss);
diff --git a/net/dccp/ccids/lib/tfrc.h b/net/dccp/ccids/lib/tfrc.h
index 130c4c40cfe3..45f30f59ea2a 100644
--- a/net/dccp/ccids/lib/tfrc.h
+++ b/net/dccp/ccids/lib/tfrc.h
@@ -4,7 +4,7 @@
  *  net/dccp/ccids/lib/tfrc.h
  *
  *  Copyright (c) 2005 The University of Waikato, Hamilton, New Zealand.
- *  Copyright (c) 2005 Ian McDonald <iam4@cs.waikato.ac.nz>
+ *  Copyright (c) 2005 Ian McDonald <ian.mcdonald@jandi.co.nz>
  *  Copyright (c) 2005 Arnaldo Carvalho de Melo <acme@conectiva.com.br>
  *  Copyright (c) 2003 Nils-Erik Mattsson, Joacim Haggmark, Magnus Erixzon
  *
diff --git a/net/dccp/ccids/lib/tfrc_equation.c b/net/dccp/ccids/lib/tfrc_equation.c
index 4fd2ebebf5a0..44076e0c6591 100644
--- a/net/dccp/ccids/lib/tfrc_equation.c
+++ b/net/dccp/ccids/lib/tfrc_equation.c
@@ -2,7 +2,7 @@
  *  net/dccp/ccids/lib/tfrc_equation.c
  *
  *  Copyright (c) 2005 The University of Waikato, Hamilton, New Zealand.
- *  Copyright (c) 2005 Ian McDonald <iam4@cs.waikato.ac.nz>
+ *  Copyright (c) 2005 Ian McDonald <ian.mcdonald@jandi.co.nz>
  *  Copyright (c) 2005 Arnaldo Carvalho de Melo <acme@conectiva.com.br>
  *  Copyright (c) 2003 Nils-Erik Mattsson, Joacim Haggmark, Magnus Erixzon
  *
diff --git a/net/dccp/dccp.h b/net/dccp/dccp.h
index d00a2f4ee5dd..a5c5475724c0 100644
--- a/net/dccp/dccp.h
+++ b/net/dccp/dccp.h
@@ -5,7 +5,7 @@
  *
  *  An implementation of the DCCP protocol
  *  Copyright (c) 2005 Arnaldo Carvalho de Melo <acme@conectiva.com.br>
- *  Copyright (c) 2005 Ian McDonald <iam4@cs.waikato.ac.nz>
+ *  Copyright (c) 2005-6 Ian McDonald <ian.mcdonald@jandi.co.nz>
  *
  *      This program is free software; you can redistribute it and/or modify it
  *      under the terms of the GNU General Public License version 2 as
@@ -81,6 +81,14 @@ static inline u64 max48(const u64 seq1, const u64 seq2)
         return after48(seq1, seq2) ? seq1 : seq2;
 }
 
+/* is seq1 next seqno after seq2 */
+static inline int follows48(const u64 seq1, const u64 seq2)
+{
+        int diff = (seq1 & 0xFFFF) - (seq2 & 0xFFFF);
+
+        return diff==1;
+}
+
 enum {
         DCCP_MIB_NUM = 0,
         DCCP_MIB_ACTIVEOPENS,                   /* ActiveOpens */
diff --git a/net/dccp/options.c b/net/dccp/options.c
index daf72bb671f0..07a34696ac97 100644
--- a/net/dccp/options.c
+++ b/net/dccp/options.c
@@ -4,7 +4,7 @@
  *  An implementation of the DCCP protocol
  *  Copyright (c) 2005 Aristeu Sergio Rozanski Filho <aris@cathedrallabs.org>
  *  Copyright (c) 2005 Arnaldo Carvalho de Melo <acme@ghostprotocols.net>
- *  Copyright (c) 2005 Ian McDonald <iam4@cs.waikato.ac.nz>
+ *  Copyright (c) 2005 Ian McDonald <ian.mcdonald@jandi.co.nz>
  *
  *      This program is free software; you can redistribute it and/or
  *      modify it under the terms of the GNU General Public License
diff --git a/net/ipv4/netfilter/arp_tables.c b/net/ipv4/netfilter/arp_tables.c
index df4854cf598b..8d1d7a6e72a5 100644
--- a/net/ipv4/netfilter/arp_tables.c
+++ b/net/ipv4/netfilter/arp_tables.c
@@ -236,7 +236,7 @@ unsigned int arpt_do_table(struct sk_buff **pskb,
         struct arpt_entry *e, *back;
         const char *indev, *outdev;
         void *table_base;
-        struct xt_table_info *private = table->private;
+        struct xt_table_info *private;
 
         /* ARP header, plus 2 device addresses, plus 2 IP addresses.  */
         if (!pskb_may_pull((*pskb), (sizeof(struct arphdr) +
@@ -248,6 +248,7 @@ unsigned int arpt_do_table(struct sk_buff **pskb,
         outdev = out ? out->name : nulldevname;
 
         read_lock_bh(&table->lock);
+        private = table->private;
         table_base = (void *)private->entries[smp_processor_id()];
         e = get_entry(table_base, private->hook_entry[hook]);
         back = get_entry(table_base, private->underflow[hook]);
diff --git a/net/ipv4/tcp_output.c b/net/ipv4/tcp_output.c
index 507adefbc17c..b4f3ffe1b3b4 100644
--- a/net/ipv4/tcp_output.c
+++ b/net/ipv4/tcp_output.c
@@ -201,6 +201,7 @@ void tcp_select_initial_window(int __space, __u32 mss,
                  * See RFC1323 for an explanation of the limit to 14 
                  */
                 space = max_t(u32, sysctl_tcp_rmem[2], sysctl_rmem_max);
+                space = min_t(u32, space, *window_clamp);
                 while (space > 65535 && (*rcv_wscale) < 14) {
                         space >>= 1;
                         (*rcv_wscale)++;
diff --git a/net/ipv6/tcp_ipv6.c b/net/ipv6/tcp_ipv6.c
index b843a650be71..802a1a6b1037 100644
--- a/net/ipv6/tcp_ipv6.c
+++ b/net/ipv6/tcp_ipv6.c
@@ -944,7 +944,7 @@ static struct sock * tcp_v6_syn_recv_sock(struct sock *sk, struct sk_buff *skb,
          * comment in that function for the gory details. -acme
          */
 
-        sk->sk_gso_type = SKB_GSO_TCPV6;
+        newsk->sk_gso_type = SKB_GSO_TCPV6;
         __ip6_dst_store(newsk, dst, NULL);
 
         newtcp6sk = (struct tcp6_sock *)newsk;
diff --git a/net/sctp/sm_make_chunk.c b/net/sctp/sm_make_chunk.c
index 4f11f5858209..17b509282cf2 100644
--- a/net/sctp/sm_make_chunk.c
+++ b/net/sctp/sm_make_chunk.c
@@ -806,38 +806,26 @@ no_mem:
 
 /* Helper to create ABORT with a SCTP_ERROR_USER_ABORT error.  */
 struct sctp_chunk *sctp_make_abort_user(const struct sctp_association *asoc,
-                                   const struct sctp_chunk *chunk,
-                                   const struct msghdr *msg)
+                                        const struct msghdr *msg,
+                                        size_t paylen)
 {
         struct sctp_chunk *retval;
-        void *payload = NULL, *payoff;
-        size_t paylen = 0;
-        struct iovec *iov = NULL;
-        int iovlen = 0;
-
-        if (msg) {
-                iov = msg->msg_iov;
-                iovlen = msg->msg_iovlen;
-                paylen = get_user_iov_size(iov, iovlen);
-        }
+        void *payload = NULL;
+        int err;
 
-        retval = sctp_make_abort(asoc, chunk, sizeof(sctp_errhdr_t) + paylen);
+        retval = sctp_make_abort(asoc, NULL, sizeof(sctp_errhdr_t) + paylen);
         if (!retval)
                 goto err_chunk;
 
         if (paylen) {
                 /* Put the msg_iov together into payload.  */
-                payload = kmalloc(paylen, GFP_ATOMIC);
+                payload = kmalloc(paylen, GFP_KERNEL);
                 if (!payload)
                         goto err_payload;
-                payoff = payload;
 
-                for (; iovlen > 0; --iovlen) {
-                        if (copy_from_user(payoff, iov->iov_base,iov->iov_len))
-                                goto err_copy;
-                        payoff += iov->iov_len;
-                        iov++;
-                }
+                err = memcpy_fromiovec(payload, msg->msg_iov, paylen);
+                if (err < 0)
+                        goto err_copy;
         }
 
         sctp_init_cause(retval, SCTP_ERROR_USER_ABORT, payload, paylen);
diff --git a/net/sctp/sm_statefuns.c b/net/sctp/sm_statefuns.c
index ead3f1b0ea3d..5b5ae7958322 100644
--- a/net/sctp/sm_statefuns.c
+++ b/net/sctp/sm_statefuns.c
@@ -4031,18 +4031,12 @@ sctp_disposition_t sctp_sf_do_9_1_prm_abort(
          * from its upper layer, but retransmits data to the far end
          * if necessary to fill gaps.
          */
-        struct msghdr *msg = arg;
-        struct sctp_chunk *abort;
+        struct sctp_chunk *abort = arg;
         sctp_disposition_t retval;
 
         retval = SCTP_DISPOSITION_CONSUME;
 
-        /* Generate ABORT chunk to send the peer.  */
-        abort = sctp_make_abort_user(asoc, NULL, msg);
-        if (!abort)
-                retval = SCTP_DISPOSITION_NOMEM;
-        else
-                sctp_add_cmd_sf(commands, SCTP_CMD_REPLY, SCTP_CHUNK(abort));
+        sctp_add_cmd_sf(commands, SCTP_CMD_REPLY, SCTP_CHUNK(abort));
 
         /* Even if we can't send the ABORT due to low memory delete the
          * TCB.  This is a departure from our typical NOMEM handling.
@@ -4166,8 +4160,7 @@ sctp_disposition_t sctp_sf_cookie_wait_prm_abort(
         void *arg,
         sctp_cmd_seq_t *commands)
 {
-        struct msghdr *msg = arg;
-        struct sctp_chunk *abort;
+        struct sctp_chunk *abort = arg;
         sctp_disposition_t retval;
 
         /* Stop T1-init timer */
@@ -4175,12 +4168,7 @@ sctp_disposition_t sctp_sf_cookie_wait_prm_abort(
                         SCTP_TO(SCTP_EVENT_TIMEOUT_T1_INIT));
         retval = SCTP_DISPOSITION_CONSUME;
 
-        /* Generate ABORT chunk to send the peer */
-        abort = sctp_make_abort_user(asoc, NULL, msg);
-        if (!abort)
-                retval = SCTP_DISPOSITION_NOMEM;
-        else
-                sctp_add_cmd_sf(commands, SCTP_CMD_REPLY, SCTP_CHUNK(abort));
+        sctp_add_cmd_sf(commands, SCTP_CMD_REPLY, SCTP_CHUNK(abort));
 
         sctp_add_cmd_sf(commands, SCTP_CMD_NEW_STATE,
                         SCTP_STATE(SCTP_STATE_CLOSED));
diff --git a/net/sctp/socket.c b/net/sctp/socket.c
index 54722e622e6d..fde3f55bfd4b 100644
--- a/net/sctp/socket.c
+++ b/net/sctp/socket.c
@@ -1520,8 +1520,16 @@ SCTP_STATIC int sctp_sendmsg(struct kiocb *iocb, struct sock *sk,
                         goto out_unlock;
                 }
                 if (sinfo_flags & SCTP_ABORT) {
+                        struct sctp_chunk *chunk;
+
+                        chunk = sctp_make_abort_user(asoc, msg, msg_len);
+                        if (!chunk) {
+                                err = -ENOMEM;
+                                goto out_unlock;
+                        }
+
                         SCTP_DEBUG_PRINTK("Aborting association: %p\n", asoc);
-                        sctp_primitive_ABORT(asoc, msg);
+                        sctp_primitive_ABORT(asoc, chunk);
                         err = 0;
                         goto out_unlock;
                 }
diff --git a/net/sunrpc/auth_gss/auth_gss.c b/net/sunrpc/auth_gss/auth_gss.c
index 4a9aa9393b97..ef1cf5b476c8 100644
--- a/net/sunrpc/auth_gss/auth_gss.c
+++ b/net/sunrpc/auth_gss/auth_gss.c
@@ -718,8 +718,7 @@ gss_destroy(struct rpc_auth *auth)
                 auth, auth->au_flavor);
 
         gss_auth = container_of(auth, struct gss_auth, rpc_auth);
-        rpc_unlink(gss_auth->path);
-        dput(gss_auth->dentry);
+        rpc_unlink(gss_auth->dentry);
         gss_auth->dentry = NULL;
         gss_mech_put(gss_auth->mech);
 
diff --git a/net/sunrpc/clnt.c b/net/sunrpc/clnt.c
index d6409e757219..3e19d321067a 100644
--- a/net/sunrpc/clnt.c
+++ b/net/sunrpc/clnt.c
@@ -183,8 +183,7 @@ rpc_new_client(struct rpc_xprt *xprt, char *servname,
 
 out_no_auth:
         if (!IS_ERR(clnt->cl_dentry)) {
-                rpc_rmdir(clnt->cl_pathname);
-                dput(clnt->cl_dentry);
+                rpc_rmdir(clnt->cl_dentry);
                 rpc_put_mount();
         }
 out_no_path:
@@ -251,10 +250,8 @@ rpc_clone_client(struct rpc_clnt *clnt)
         new->cl_autobind = 0;
         new->cl_oneshot = 0;
         new->cl_dead = 0;
-        if (!IS_ERR(new->cl_dentry)) {
+        if (!IS_ERR(new->cl_dentry))
                 dget(new->cl_dentry);
-                rpc_get_mount();
-        }
         rpc_init_rtt(&new->cl_rtt_default, clnt->cl_xprt->timeout.to_initval);
         if (new->cl_auth)
                 atomic_inc(&new->cl_auth->au_count);
@@ -317,11 +314,15 @@ rpc_destroy_client(struct rpc_clnt *clnt)
                 clnt->cl_auth = NULL;
         }
         if (clnt->cl_parent != clnt) {
+                if (!IS_ERR(clnt->cl_dentry))
+                        dput(clnt->cl_dentry);
                 rpc_destroy_client(clnt->cl_parent);
                 goto out_free;
         }
-        if (clnt->cl_pathname[0])
-                rpc_rmdir(clnt->cl_pathname);
+        if (!IS_ERR(clnt->cl_dentry)) {
+                rpc_rmdir(clnt->cl_dentry);
+                rpc_put_mount();
+        }
         if (clnt->cl_xprt) {
                 xprt_destroy(clnt->cl_xprt);
                 clnt->cl_xprt = NULL;
@@ -331,10 +332,6 @@ rpc_destroy_client(struct rpc_clnt *clnt)
 out_free:
         rpc_free_iostats(clnt->cl_metrics);
         clnt->cl_metrics = NULL;
-        if (!IS_ERR(clnt->cl_dentry)) {
-                dput(clnt->cl_dentry);
-                rpc_put_mount();
-        }
         kfree(clnt);
         return 0;
 }
@@ -1184,6 +1181,17 @@ call_verify(struct rpc_task *task)
         u32     *p = iov->iov_base, n;
         int error = -EACCES;
 
+        if ((task->tk_rqstp->rq_rcv_buf.len & 3) != 0) {
+                /* RFC-1014 says that the representation of XDR data must be a
+                 * multiple of four bytes
+                 * - if it isn't pointer subtraction in the NFS client may give
+                 *   undefined results
+                 */
+                printk(KERN_WARNING
+                       "call_verify: XDR representation not a multiple of"
+                       " 4 bytes: 0x%x\n", task->tk_rqstp->rq_rcv_buf.len);
+                goto out_eio;
+        }
         if ((len -= 3) < 0)
                 goto out_overflow;
         p += 1; /* skip XID */
diff --git a/net/sunrpc/rpc_pipe.c b/net/sunrpc/rpc_pipe.c
index a3bd2db2e024..0b1a1ac8a4bc 100644
--- a/net/sunrpc/rpc_pipe.c
+++ b/net/sunrpc/rpc_pipe.c
@@ -539,6 +539,7 @@ repeat:
                                 rpc_close_pipes(dentry->d_inode);
                                 simple_unlink(dir, dentry);
                         }
+                        inode_dir_notify(dir, DN_DELETE);
                         dput(dentry);
                 } while (n);
                 goto repeat;
@@ -610,8 +611,8 @@ __rpc_rmdir(struct inode *dir, struct dentry *dentry)
         int error;
 
         shrink_dcache_parent(dentry);
-        if (dentry->d_inode)
-                rpc_close_pipes(dentry->d_inode);
+        if (d_unhashed(dentry))
+                return 0;
         if ((error = simple_rmdir(dir, dentry)) != 0)
                 return error;
         if (!error) {
@@ -684,28 +685,20 @@ err_dput:
 }
 
 int
-rpc_rmdir(char *path)
+rpc_rmdir(struct dentry *dentry)
 {
-        struct nameidata nd;
-        struct dentry *dentry;
+        struct dentry *parent;
         struct inode *dir;
         int error;
 
-        if ((error = rpc_lookup_parent(path, &nd)) != 0)
-                return error;
-        dir = nd.dentry->d_inode;
+        parent = dget_parent(dentry);
+        dir = parent->d_inode;
         mutex_lock_nested(&dir->i_mutex, I_MUTEX_PARENT);
-        dentry = lookup_one_len(nd.last.name, nd.dentry, nd.last.len);
-        if (IS_ERR(dentry)) {
-                error = PTR_ERR(dentry);
-                goto out_release;
-        }
         rpc_depopulate(dentry);
         error = __rpc_rmdir(dir, dentry);
         dput(dentry);
-out_release:
         mutex_unlock(&dir->i_mutex);
-        rpc_release_path(&nd);
+        dput(parent);
         return error;
 }
 
@@ -746,32 +739,26 @@ err_dput:
 }
 
 int
-rpc_unlink(char *path)
+rpc_unlink(struct dentry *dentry)
 {
-        struct nameidata nd;
-        struct dentry *dentry;
+        struct dentry *parent;
         struct inode *dir;
-        int error;
+        int error = 0;
 
-        if ((error = rpc_lookup_parent(path, &nd)) != 0)
-                return error;
-        dir = nd.dentry->d_inode;
+        parent = dget_parent(dentry);
+        dir = parent->d_inode;
         mutex_lock_nested(&dir->i_mutex, I_MUTEX_PARENT);
-        dentry = lookup_one_len(nd.last.name, nd.dentry, nd.last.len);
-        if (IS_ERR(dentry)) {
-                error = PTR_ERR(dentry);
-                goto out_release;
-        }
-        d_drop(dentry);
-        if (dentry->d_inode) {
-                rpc_close_pipes(dentry->d_inode);
-                error = simple_unlink(dir, dentry);
+        if (!d_unhashed(dentry)) {
+                d_drop(dentry);
+                if (dentry->d_inode) {
+                        rpc_close_pipes(dentry->d_inode);
+                        error = simple_unlink(dir, dentry);
+                }
+                inode_dir_notify(dir, DN_DELETE);
         }
         dput(dentry);
-        inode_dir_notify(dir, DN_DELETE);
-out_release:
         mutex_unlock(&dir->i_mutex);
-        rpc_release_path(&nd);
+        dput(parent);
         return error;
 }