Merge commit 'v2.6.30-rc6' into perfcounters/core

Merge reason: this branch was on an -rc4 base, merge it up to -rc6
              to get the latest upstream fixes.

Signed-off-by: Ingo Molnar <mingo@elte.hu>

25 files changed, 127 insertions, 32 deletions

diff --git a/include/linux/Kbuild b/include/linux/Kbuild
index ca9b9b9bd331..3f0eaa397ef5 100644
--- a/include/linux/Kbuild
+++ b/include/linux/Kbuild
@@ -138,6 +138,7 @@ header-y += qnxtypes.h
 header-y += radeonfb.h
 header-y += raw.h
 header-y += resource.h
+header-y += romfs_fs.h
 header-y += rose.h
 header-y += serial_reg.h
 header-y += smbno.h
@@ -314,7 +315,6 @@ unifdef-y += irqnr.h
 unifdef-y += reboot.h
 unifdef-y += reiserfs_fs.h
 unifdef-y += reiserfs_xattr.h
-unifdef-y += romfs_fs.h
 unifdef-y += route.h
 unifdef-y += rtc.h
 unifdef-y += rtnetlink.h
diff --git a/include/linux/ata.h b/include/linux/ata.h
index cb79b7a208e1..915da43edee1 100644
--- a/include/linux/ata.h
+++ b/include/linux/ata.h
@@ -730,6 +730,34 @@ static inline int ata_id_has_unload(const u16 *id)
         return 0;
 }
 
+static inline int ata_id_form_factor(const u16 *id)
+{
+        u16 val = id[168];
+
+        if (ata_id_major_version(id) < 7 || val == 0 || val == 0xffff)
+                return 0;
+
+        val &= 0xf;
+
+        if (val > 5)
+                return 0;
+
+        return val;
+}
+
+static inline int ata_id_rotation_rate(const u16 *id)
+{
+        u16 val = id[217];
+
+        if (ata_id_major_version(id) < 7 || val == 0 || val == 0xffff)
+                return 0;
+
+        if (val > 1 && val < 0x401)
+                return 0;
+
+        return val;
+}
+
 static inline int ata_id_has_trim(const u16 *id)
 {
         if (ata_id_major_version(id) >= 7 &&
diff --git a/include/linux/binfmts.h b/include/linux/binfmts.h
index 6638b8148de7..61ee18c1bdb4 100644
--- a/include/linux/binfmts.h
+++ b/include/linux/binfmts.h
@@ -82,7 +82,19 @@ struct linux_binfmt {
         int hasvdso;
 };
 
-extern int register_binfmt(struct linux_binfmt *);
+extern int __register_binfmt(struct linux_binfmt *fmt, int insert);
+
+/* Registration of default binfmt handlers */
+static inline int register_binfmt(struct linux_binfmt *fmt)
+{
+        return __register_binfmt(fmt, 0);
+}
+/* Same as above, but adds a new binfmt at the top of the list */
+static inline int insert_binfmt(struct linux_binfmt *fmt)
+{
+        return __register_binfmt(fmt, 1);
+}
+
 extern void unregister_binfmt(struct linux_binfmt *);
 
 extern int prepare_binprm(struct linux_binprm *);
diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
index 2755d5c6da22..b4f71f1a4af7 100644
--- a/include/linux/blkdev.h
+++ b/include/linux/blkdev.h
@@ -601,6 +601,7 @@ enum {
                                  blk_failfast_driver(rq))
 #define blk_rq_started(rq)      ((rq)->cmd_flags & REQ_STARTED)
 #define blk_rq_io_stat(rq)      ((rq)->cmd_flags & REQ_IO_STAT)
+#define blk_rq_quiet(rq)        ((rq)->cmd_flags & REQ_QUIET)
 
 #define blk_account_rq(rq)      (blk_rq_started(rq) && (blk_fs_request(rq) || blk_discard_rq(rq))) 
 
diff --git a/include/linux/device.h b/include/linux/device.h
index 6a69caaac18a..5d5c197bad45 100644
--- a/include/linux/device.h
+++ b/include/linux/device.h
@@ -384,13 +384,8 @@ struct device {
         struct device_driver *driver;   /* which driver has allocated this
                                            device */
         void            *driver_data;   /* data private to the driver */
-
-        void            *platform_data; /* We will remove platform_data
-                                           field if all platform devices
-                                           pass its platform specific data
-                                           from platform_device->platform_data,
-                                           other kind of devices should not
-                                           use platform_data. */
+        void            *platform_data; /* Platform specific data, device
+                                           core doesn't touch it */
         struct dev_pm_info      power;
 
 #ifdef CONFIG_NUMA
diff --git a/include/linux/dmaengine.h b/include/linux/dmaengine.h
index 2e2aa3df170c..ffefba81c818 100644
--- a/include/linux/dmaengine.h
+++ b/include/linux/dmaengine.h
@@ -78,12 +78,18 @@ enum dma_transaction_type {
  *      dependency chains
  * @DMA_COMPL_SKIP_SRC_UNMAP - set to disable dma-unmapping the source buffer(s)
  * @DMA_COMPL_SKIP_DEST_UNMAP - set to disable dma-unmapping the destination(s)
+ * @DMA_COMPL_SRC_UNMAP_SINGLE - set to do the source dma-unmapping as single
+ *      (if not set, do the source dma-unmapping as page)
+ * @DMA_COMPL_DEST_UNMAP_SINGLE - set to do the destination dma-unmapping as single
+ *      (if not set, do the destination dma-unmapping as page)
  */
 enum dma_ctrl_flags {
         DMA_PREP_INTERRUPT = (1 << 0),
         DMA_CTRL_ACK = (1 << 1),
         DMA_COMPL_SKIP_SRC_UNMAP = (1 << 2),
         DMA_COMPL_SKIP_DEST_UNMAP = (1 << 3),
+        DMA_COMPL_SRC_UNMAP_SINGLE = (1 << 4),
+        DMA_COMPL_DEST_UNMAP_SINGLE = (1 << 5),
 };
 
 /**
diff --git a/include/linux/fs.h b/include/linux/fs.h
index 5bed436f4353..3b534e527e09 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -1775,6 +1775,7 @@ void kill_block_super(struct super_block *sb);
 void kill_anon_super(struct super_block *sb);
 void kill_litter_super(struct super_block *sb);
 void deactivate_super(struct super_block *sb);
+void deactivate_locked_super(struct super_block *sb);
 int set_anon_super(struct super_block *s, void *data);
 struct super_block *sget(struct file_system_type *type,
                         int (*test)(struct super_block *,void *),
@@ -2117,7 +2118,7 @@ extern struct file *create_write_pipe(int flags);
 extern void free_write_pipe(struct file *);
 
 extern struct file *do_filp_open(int dfd, const char *pathname,
-                int open_flag, int mode);
+                int open_flag, int mode, int acc_mode);
 extern int may_open(struct path *, int, int);
 
 extern int kernel_read(struct file *, unsigned long, char *, unsigned long);
@@ -2367,6 +2368,7 @@ extern void file_update_time(struct file *file);
 
 extern int generic_show_options(struct seq_file *m, struct vfsmount *mnt);
 extern void save_mount_options(struct super_block *sb, char *options);
+extern void replace_mount_options(struct super_block *sb, char *options);
 
 static inline ino_t parent_ino(struct dentry *dentry)
 {
diff --git a/include/linux/input.h b/include/linux/input.h
index 6b28048fc568..0e6ff5de3588 100644
--- a/include/linux/input.h
+++ b/include/linux/input.h
@@ -106,6 +106,7 @@ struct input_absinfo {
 
 #define SYN_REPORT              0
 #define SYN_CONFIG              1
+#define SYN_MT_REPORT           2
 
 /*
  * Keys and buttons
@@ -445,6 +446,7 @@ struct input_absinfo {
 #define BTN_STYLUS2             0x14c
 #define BTN_TOOL_DOUBLETAP      0x14d
 #define BTN_TOOL_TRIPLETAP      0x14e
+#define BTN_TOOL_QUADTAP        0x14f   /* Four fingers on trackpad */
 
 #define BTN_WHEEL               0x150
 #define BTN_GEAR_DOWN           0x150
@@ -644,6 +646,17 @@ struct input_absinfo {
 #define ABS_TOOL_WIDTH          0x1c
 #define ABS_VOLUME              0x20
 #define ABS_MISC                0x28
+
+#define ABS_MT_TOUCH_MAJOR      0x30    /* Major axis of touching ellipse */
+#define ABS_MT_TOUCH_MINOR      0x31    /* Minor axis (omit if circular) */
+#define ABS_MT_WIDTH_MAJOR      0x32    /* Major axis of approaching ellipse */
+#define ABS_MT_WIDTH_MINOR      0x33    /* Minor axis (omit if circular) */
+#define ABS_MT_ORIENTATION      0x34    /* Ellipse orientation */
+#define ABS_MT_POSITION_X       0x35    /* Center X ellipse position */
+#define ABS_MT_POSITION_Y       0x36    /* Center Y ellipse position */
+#define ABS_MT_TOOL_TYPE        0x37    /* Type of touching device */
+#define ABS_MT_BLOB_ID          0x38    /* Group a set of packets as a blob */
+
 #define ABS_MAX                 0x3f
 #define ABS_CNT                 (ABS_MAX+1)
 
@@ -743,6 +756,12 @@ struct input_absinfo {
 #define BUS_ATARI               0x1B
 
 /*
+ * MT_TOOL types
+ */
+#define MT_TOOL_FINGER          0
+#define MT_TOOL_PEN             1
+
+/*
  * Values describing the status of a force-feedback effect
  */
 #define FF_STATUS_STOPPED       0x00
@@ -1311,6 +1330,11 @@ static inline void input_sync(struct input_dev *dev)
         input_event(dev, EV_SYN, SYN_REPORT, 0);
 }
 
+static inline void input_mt_sync(struct input_dev *dev)
+{
+        input_event(dev, EV_SYN, SYN_MT_REPORT, 0);
+}
+
 void input_set_capability(struct input_dev *dev, unsigned int type, unsigned int code);
 
 static inline void input_set_abs_params(struct input_dev *dev, int axis, int min, int max, int fuzz, int flat)
diff --git a/include/linux/memcontrol.h b/include/linux/memcontrol.h
index a9e3b76aa884..25b9ca93d232 100644
--- a/include/linux/memcontrol.h
+++ b/include/linux/memcontrol.h
@@ -56,7 +56,7 @@ extern void mem_cgroup_move_lists(struct page *page,
                                   enum lru_list from, enum lru_list to);
 extern void mem_cgroup_uncharge_page(struct page *page);
 extern void mem_cgroup_uncharge_cache_page(struct page *page);
-extern int mem_cgroup_shrink_usage(struct page *page,
+extern int mem_cgroup_shmem_charge_fallback(struct page *page,
                         struct mm_struct *mm, gfp_t gfp_mask);
 
 extern unsigned long mem_cgroup_isolate_pages(unsigned long nr_to_scan,
@@ -155,7 +155,7 @@ static inline void mem_cgroup_uncharge_cache_page(struct page *page)
 {
 }
 
-static inline int mem_cgroup_shrink_usage(struct page *page,
+static inline int mem_cgroup_shmem_charge_fallback(struct page *page,
                         struct mm_struct *mm, gfp_t gfp_mask)
 {
         return 0;
diff --git a/include/linux/mman.h b/include/linux/mman.h
index 30d1073bac3b..9872d6ca58ae 100644
--- a/include/linux/mman.h
+++ b/include/linux/mman.h
@@ -12,21 +12,18 @@
 
 #ifdef __KERNEL__
 #include <linux/mm.h>
+#include <linux/percpu_counter.h>
 
 #include <asm/atomic.h>
 
 extern int sysctl_overcommit_memory;
 extern int sysctl_overcommit_ratio;
-extern atomic_long_t vm_committed_space;
+extern struct percpu_counter vm_committed_as;
 
-#ifdef CONFIG_SMP
-extern void vm_acct_memory(long pages);
-#else
 static inline void vm_acct_memory(long pages)
 {
-        atomic_long_add(pages, &vm_committed_space);
+        percpu_counter_add(&vm_committed_as, pages);
 }
-#endif
 
 static inline void vm_unacct_memory(long pages)
 {
diff --git a/include/linux/namei.h b/include/linux/namei.h
index fc2e03579877..518098fe63af 100644
--- a/include/linux/namei.h
+++ b/include/linux/namei.h
@@ -69,7 +69,6 @@ extern int path_lookup(const char *, unsigned, struct nameidata *);
 extern int vfs_path_lookup(struct dentry *, struct vfsmount *,
                            const char *, unsigned int, struct nameidata *);
 
-extern int path_lookup_open(int dfd, const char *name, unsigned lookup_flags, struct nameidata *, int open_flags);
 extern struct file *lookup_instantiate_filp(struct nameidata *nd, struct dentry *dentry,
                 int (*open)(struct inode *, struct file *));
 extern struct file *nameidata_to_filp(struct nameidata *nd, int flags);
diff --git a/include/linux/netfilter/x_tables.h b/include/linux/netfilter/x_tables.h
index 1b2e43502ef7..c9efe039dc57 100644
--- a/include/linux/netfilter/x_tables.h
+++ b/include/linux/netfilter/x_tables.h
@@ -472,7 +472,7 @@ static inline void xt_info_rdlock_bh(void)
 
         local_bh_disable();
         lock = &__get_cpu_var(xt_info_locks);
-        if (!lock->readers++)
+        if (likely(!lock->readers++))
                 spin_lock(&lock->lock);
 }
 
@@ -480,7 +480,7 @@ static inline void xt_info_rdunlock_bh(void)
 {
         struct xt_info_lock *lock = &__get_cpu_var(xt_info_locks);
 
-        if (!--lock->readers)
+        if (likely(!--lock->readers))
                 spin_unlock(&lock->lock);
         local_bh_enable();
 }
diff --git a/include/linux/netfilter/xt_LED.h b/include/linux/netfilter/xt_LED.h
index 4c91a0d770d0..f5509e7524d3 100644
--- a/include/linux/netfilter/xt_LED.h
+++ b/include/linux/netfilter/xt_LED.h
@@ -1,6 +1,8 @@
 #ifndef _XT_LED_H
 #define _XT_LED_H
 
+#include <linux/types.h>
+
 struct xt_led_info {
         char id[27];        /* Unique ID for this trigger in the LED class */
         __u8 always_blink;  /* Blink even if the LED is already on */
diff --git a/include/linux/netfilter/xt_cluster.h b/include/linux/netfilter/xt_cluster.h
index 5e0a0d07b526..886682656f09 100644
--- a/include/linux/netfilter/xt_cluster.h
+++ b/include/linux/netfilter/xt_cluster.h
@@ -12,4 +12,6 @@ struct xt_cluster_match_info {
         u_int32_t               flags;
 };
 
+#define XT_CLUSTER_NODES_MAX    32
+
 #endif /* _XT_CLUSTER_MATCH_H */
diff --git a/include/linux/nls.h b/include/linux/nls.h
index 6a882208301a..52b1a76c1b43 100644
--- a/include/linux/nls.h
+++ b/include/linux/nls.h
@@ -58,6 +58,25 @@ static inline int nls_strnicmp(struct nls_table *t, const unsigned char *s1,
         return 0;
 }
 
+/*
+ * nls_nullsize - return length of null character for codepage
+ * @codepage - codepage for which to return length of NULL terminator
+ *
+ * Since we can't guarantee that the null terminator will be a particular
+ * length, we have to check against the codepage. If there's a problem
+ * determining it, assume a single-byte NULL terminator.
+ */
+static inline int
+nls_nullsize(const struct nls_table *codepage)
+{
+        int charlen;
+        char tmp[NLS_MAX_CHARSET_SIZE];
+
+        charlen = codepage->uni2char(0, tmp, NLS_MAX_CHARSET_SIZE);
+
+        return charlen > 0 ? charlen : 1;
+}
+
 #define MODULE_ALIAS_NLS(name)  MODULE_ALIAS("nls_" __stringify(name))
 
 #endif /* _LINUX_NLS_H */
diff --git a/include/linux/of_platform.h b/include/linux/of_platform.h
index 3d327b67d7e2..908406651330 100644
--- a/include/linux/of_platform.h
+++ b/include/linux/of_platform.h
@@ -51,6 +51,16 @@ extern int of_register_driver(struct of_platform_driver *drv,
                               struct bus_type *bus);
 extern void of_unregister_driver(struct of_platform_driver *drv);
 
+/* Platform drivers register/unregister */
+static inline int of_register_platform_driver(struct of_platform_driver *drv)
+{
+        return of_register_driver(drv, &of_platform_bus_type);
+}
+static inline void of_unregister_platform_driver(struct of_platform_driver *drv)
+{
+        of_unregister_driver(drv);
+}
+
 #include <asm/of_platform.h>
 
 extern struct of_device *of_find_device_by_node(struct device_node *np);
diff --git a/include/linux/platform_device.h b/include/linux/platform_device.h
index 72736fd8223c..b67bb5d7b221 100644
--- a/include/linux/platform_device.h
+++ b/include/linux/platform_device.h
@@ -20,7 +20,6 @@ struct platform_device {
         struct device   dev;
         u32             num_resources;
         struct resource * resource;
-        void            *platform_data;
 
         struct platform_device_id       *id_entry;
 };
diff --git a/include/linux/reiserfs_fs_sb.h b/include/linux/reiserfs_fs_sb.h
index 6b361d23a499..6473650c28f1 100644
--- a/include/linux/reiserfs_fs_sb.h
+++ b/include/linux/reiserfs_fs_sb.h
@@ -402,7 +402,7 @@ struct reiserfs_sb_info {
         int reserved_blocks;    /* amount of blocks reserved for further allocations */
         spinlock_t bitmap_lock; /* this lock on now only used to protect reserved_blocks variable */
         struct dentry *priv_root;       /* root of /.reiserfs_priv */
-        struct dentry *xattr_root;      /* root of /.reiserfs_priv/.xa */
+        struct dentry *xattr_root;      /* root of /.reiserfs_priv/xattrs */
         int j_errno;
 #ifdef CONFIG_QUOTA
         char *s_qf_names[MAXQUOTAS];
@@ -488,7 +488,6 @@ enum reiserfs_mount_options {
 #define reiserfs_data_log(s) (REISERFS_SB(s)->s_mount_opt & (1 << REISERFS_DATA_LOG))
 #define reiserfs_data_ordered(s) (REISERFS_SB(s)->s_mount_opt & (1 << REISERFS_DATA_ORDERED))
 #define reiserfs_data_writeback(s) (REISERFS_SB(s)->s_mount_opt & (1 << REISERFS_DATA_WRITEBACK))
-#define reiserfs_xattrs(s) ((s)->s_xattr != NULL)
 #define reiserfs_xattrs_user(s) (REISERFS_SB(s)->s_mount_opt & (1 << REISERFS_XATTRS_USER))
 #define reiserfs_posixacl(s) (REISERFS_SB(s)->s_mount_opt & (1 << REISERFS_POSIXACL))
 #define reiserfs_xattrs_optional(s) (reiserfs_xattrs_user(s) || reiserfs_posixacl(s))
diff --git a/include/linux/reiserfs_xattr.h b/include/linux/reiserfs_xattr.h
index dcae01e63e40..cdedc01036e4 100644
--- a/include/linux/reiserfs_xattr.h
+++ b/include/linux/reiserfs_xattr.h
@@ -38,6 +38,7 @@ struct nameidata;
 int reiserfs_xattr_register_handlers(void) __init;
 void reiserfs_xattr_unregister_handlers(void);
 int reiserfs_xattr_init(struct super_block *sb, int mount_flags);
+int reiserfs_lookup_privroot(struct super_block *sb);
 int reiserfs_delete_xattrs(struct inode *inode);
 int reiserfs_chown_xattrs(struct inode *inode, struct iattr *attrs);
 
@@ -97,7 +98,7 @@ static inline size_t reiserfs_xattr_jcreate_nblocks(struct inode *inode)
 
         if ((REISERFS_I(inode)->i_flags & i_has_xattr_dir) == 0) {
                 nblocks += JOURNAL_BLOCKS_PER_OBJECT(inode->i_sb);
-                if (REISERFS_SB(inode->i_sb)->xattr_root == NULL)
+                if (!REISERFS_SB(inode->i_sb)->xattr_root->d_inode)
                         nblocks += JOURNAL_BLOCKS_PER_OBJECT(inode->i_sb);
         }
 
diff --git a/include/linux/romfs_fs.h b/include/linux/romfs_fs.h
index e20bbf9eb365..c490fbc43fe2 100644
--- a/include/linux/romfs_fs.h
+++ b/include/linux/romfs_fs.h
@@ -53,9 +53,4 @@ struct romfs_inode {
 #define ROMFH_PAD (ROMFH_SIZE-1)
 #define ROMFH_MASK (~ROMFH_PAD)
 
-#ifdef __KERNEL__
-
-/* Not much now */
-
-#endif /* __KERNEL__ */
 #endif
diff --git a/include/linux/sunrpc/xprt.h b/include/linux/sunrpc/xprt.h
index 1758d9f5b5c3..08afe43118f4 100644
--- a/include/linux/sunrpc/xprt.h
+++ b/include/linux/sunrpc/xprt.h
@@ -261,6 +261,7 @@ void			xprt_conditional_disconnect(struct rpc_xprt *xprt, unsigned int cookie);
 #define XPRT_BINDING            (5)
 #define XPRT_CLOSING            (6)
 #define XPRT_CONNECTION_ABORT   (7)
+#define XPRT_CONNECTION_CLOSE   (8)
 
 static inline void xprt_set_connected(struct rpc_xprt *xprt)
 {
diff --git a/include/linux/syscalls.h b/include/linux/syscalls.h
index 677d159fe5f4..79faae950e2e 100644
--- a/include/linux/syscalls.h
+++ b/include/linux/syscalls.h
@@ -434,6 +434,7 @@ asmlinkage long sys_fcntl(unsigned int fd, unsigned int cmd, unsigned long arg);
 asmlinkage long sys_fcntl64(unsigned int fd,
                                 unsigned int cmd, unsigned long arg);
 #endif
+asmlinkage long sys_pipe2(int __user *fildes, int flags);
 asmlinkage long sys_dup(unsigned int fildes);
 asmlinkage long sys_dup2(unsigned int oldfd, unsigned int newfd);
 asmlinkage long sys_dup3(unsigned int oldfd, unsigned int newfd, int flags);
diff --git a/include/linux/usb/cdc.h b/include/linux/usb/cdc.h
index 3c86ed25a04c..c24124a42ce5 100644
--- a/include/linux/usb/cdc.h
+++ b/include/linux/usb/cdc.h
@@ -17,6 +17,7 @@
 #define USB_CDC_SUBCLASS_DMM                    0x09
 #define USB_CDC_SUBCLASS_MDLM                   0x0a
 #define USB_CDC_SUBCLASS_OBEX                   0x0b
+#define USB_CDC_SUBCLASS_EEM                    0x0c
 
 #define USB_CDC_PROTO_NONE                      0
 
@@ -28,6 +29,8 @@
 #define USB_CDC_ACM_PROTO_AT_CDMA               6
 #define USB_CDC_ACM_PROTO_VENDOR                0xff
 
+#define USB_CDC_PROTO_EEM                       7
+
 /*-------------------------------------------------------------------------*/
 
 /*
diff --git a/include/linux/virtio_net.h b/include/linux/virtio_net.h
index 242348bb3766..cec79adbe3ea 100644
--- a/include/linux/virtio_net.h
+++ b/include/linux/virtio_net.h
@@ -4,6 +4,7 @@
  * compatible drivers/servers. */
 #include <linux/types.h>
 #include <linux/virtio_config.h>
+#include <linux/if_ether.h>
 
 /* The ID for virtio_net */
 #define VIRTIO_ID_NET   1
diff --git a/include/linux/writeback.h b/include/linux/writeback.h
index 9c1ed1fb6ddb..93445477f86a 100644
--- a/include/linux/writeback.h
+++ b/include/linux/writeback.h
@@ -168,8 +168,6 @@ void writeback_set_ratelimit(void);
 /* pdflush.c */
 extern int nr_pdflush_threads;  /* Global so it can be exported to sysctl
                                    read-only. */
-extern int nr_pdflush_threads_max; /* Global so it can be exported to sysctl */
-extern int nr_pdflush_threads_min; /* Global so it can be exported to sysctl */
 
 
 #endif          /* WRITEBACK_H */