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* Merge git://git.kernel.org/pub/scm/linux/kernel/git/sfrench/cifs-2.6Linus Torvalds2008-03-22
|\ | | | | | | | | | | | | | | | | | | * git://git.kernel.org/pub/scm/linux/kernel/git/sfrench/cifs-2.6: [CIFS] Fix mem leak on dfs referral [CIFS] file create with acl support enabled is slow [CIFS] Fix mtime on cp -p when file data cached but written out too late [CIFS] Fix build problem [CIFS] cifs: replace remaining __FUNCTION__ occurrences [CIFS] DFS patch that connects inode with dfs handling ops
| * [CIFS] Fix mem leak on dfs referralSteve French2008-03-22
| | | | | | | | | | Signed-off-by: Igor Mammedov <niallain@gmail.com> Signed-off-by: Steve French <sfrench@us.ibm.com>
| * [CIFS] file create with acl support enabled is slowSteve French2008-03-14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Shirish Pargaonkar noted: With cifsacl mount option, when a file is created on the Windows server, exclusive oplock is broken right away because the get cifs acl code again opens the file to obtain security descriptor. The client does not have the newly created file handle or inode in any of its lists yet so it does not respond to oplock break and server waits for its duration and then responds to the second open. This slows down file creation signficantly. The fix is to pass the file descriptor to the get cifsacl code wherever available so that get cifs acl code does not send second open (NT Create ANDX) and oplock is not broken. CC: Shirish Pargaonkar <shirishp@us.ibm.com> Signed-off-by: Steve French <sfrench@us.ibm.com>
| * Merge branch 'master' of /pub/scm/linux/kernel/git/torvalds/linux-2.6Steve French2008-03-14
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| * | [CIFS] Fix mtime on cp -p when file data cached but written out too lateSteve French2008-03-14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Kukks noticed that cp -p can write out file data too late, after the timestamp is already set. This was introduced as an unintentional sideeffect of the change in an earlier patch (see below) which fixed some delayed return code propagation. cea218054ad277d6c126890213afde07b4eb1602 Author: Jeff Layton <jlayton@redhat.com> Date: Tue Nov 20 23:19:03 2007 +0000 Acked-by: Shirish Pargaonkar <shirishp@us.ibm.com> Acked-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Steve French <sfrench@us.ibm.com>
| * | [CIFS] Fix build problemSteve French2008-03-11
| | | | | | | | | | | | Signed-off-by: Steve French <sfrench@us.ibm.com>
| * | Merge branch 'master' of /pub/scm/linux/kernel/git/torvalds/linux-2.6Steve French2008-03-11
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| * | | [CIFS] cifs: replace remaining __FUNCTION__ occurrencesHarvey Harrison2008-03-10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | __FUNCTION__ is gcc-specific, use __func__ Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com> Signed-off-by: Steve French <sfrench@us.ibm.com>
| * | | [CIFS] DFS patch that connects inode with dfs handling opsIgor Mammedov2008-03-08
| | | | | | | | | | | | | | | | | | | | | | | | | | | | if DFS junction point Signed-off-by: Igor Mammedov <niallain@gmail.com> Signed-off-by: Steve French <sfrench@us.ibm.com>
* | | | Change pagemap output format to allow for future reporting of huge pagesHans Rosenfeld2008-03-22
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Change pagemap output format to allow for future reporting of huge pages. (Format comment and minor cleanups: mpm@selenic.com) Signed-off-by: Hans Rosenfeld <hans.rosenfeld@amd.com> Signed-off-by: Matt Mackall <mpm@selenic.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | | Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6Linus Torvalds2008-03-21
|\ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (46 commits) [NET] ifb: set separate lockdep classes for queue locks [IPV6] KCONFIG: Fix description about IPV6_TUNNEL. [TCP]: Fix shrinking windows with window scaling netpoll: zap_completion_queue: adjust skb->users counter bridge: use time_before() in br_fdb_cleanup() [TG3]: Fix build warning on sparc32. MAINTAINERS: bluez-devel is subscribers-only audit: netlink socket can be auto-bound to pid other than current->pid (v2) [NET]: Fix permissions of /proc/net [SCTP]: Fix a race between module load and protosw access [NETFILTER]: ipt_recent: sanity check hit count [NETFILTER]: nf_conntrack_h323: logical-bitwise & confusion in process_setup() [RT2X00] drivers/net/wireless/rt2x00/rt2x00dev.c: remove dead code, fix warning [IPV4]: esp_output() misannotations [8021Q]: vlan_dev misannotations xfrm: ->eth_proto is __be16 [IPV4]: ipv4_is_lbcast() misannotations [SUNRPC]: net/* NULL noise [SCTP]: fix misannotated __sctp_rcv_asconf_lookup() [PKT_SCHED]: annotate cls_u32 ...
| * | | | [NET]: Fix permissions of /proc/netAndre Noll2008-03-20
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | commit e9720ac ([NET]: Make /proc/net a symlink on /proc/self/net (v3)) broke ganglia and probably other applications that read /proc/net/dev. This is due to the change of permissions of /proc/net that was introduced in that commit. Before: dr-xr-xr-x 5 root root 0 Mar 19 11:30 /proc/net After: dr-xr--r-- 5 root root 0 Mar 19 11:29 /proc/self/net This patch restores the permissions to the old value which makes ganglia happy again. Pavel Emelyanov says: This also broke the postfix, as it was reported in bug #10286 and described in detail by Benjamin. Signed-off-by: Andre Noll <maan@systemlinux.org> Acked-by: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | | | Merge branch 'master' of ↵David S. Miller2008-03-18
| |\ \ \ \ | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6
| * | | | | [NET] endianness noise: INADDR_ANYAl Viro2008-03-18
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
* | | | | | Merge branch 'hotfixes' of git://git.linux-nfs.org/projects/trondmy/nfs-2.6Linus Torvalds2008-03-20
|\ \ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | * 'hotfixes' of git://git.linux-nfs.org/projects/trondmy/nfs-2.6: nfs: don't ignore return value from nfs_pageio_add_request
| * | | | | | nfs: don't ignore return value from nfs_pageio_add_requestFred Isaman2008-03-19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Ignoring the return value from nfs_pageio_add_request can cause deadlocks. In read path: call nfs_pageio_add_request from readpage_async_filler assume at this point that there are requests already in desc, that can't be merged with the current request. so nfs_pageio_doio is fired up to clear out desc. assume something goes wrong in setting up the io, so desc->pg_error is set. This causes nfs_pageio_add_request to return 0, *WITHOUT* adding the original request. BUT, since return code is ignored, readpage_async_filler assumes it has been added, and does nothing further, leaving page locked. do_generic_mapping_read will eventually call lock_page, resulting in deadlock In write path: page is marked dirty by generic_perform_write nfs_writepages is called call nfs_pageio_add_request from nfs_page_async_flush assume at this point that there are requests already in desc, that can't be merged with the current request. so nfs_pageio_doio is fired up to clear out desc. assume something goes wrong in setting up the io, so desc->pg_error is set. This causes nfs_page_async_flush to return 0, *WITHOUT* adding the original request, yet marking the request as locked (PG_BUSY) and in writeback, clearing dirty marks. The next time a write is done to the page, deadlock will result as nfs_write_end calls nfs_update_request Signed-off-by: Fred Isaman <iisaman@citi.umich.edu> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
* | | | | | | fs/ufs/balloc.c: fix sparc64 printk warningAndrew Morton2008-03-19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | fs/ufs/balloc.c: In function `ufs_change_blocknr': fs/ufs/balloc.c:317: warning: long long unsigned int format, long unsigned int arg (arg 2) fs/ufs/balloc.c:317: warning: long long unsigned int format, long unsigned int arg (arg 3) sector_t is u64 and we don't know what type the architecture uses to implement u64. Cc: Evgeniy Dushistov <dushistov@mail.ru> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | | | | | zisofs: fix readpage() outside i_sizeDave Young2008-03-19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | A read request outside i_size will be handled in do_generic_file_read(). So we just return 0 to avoid getting -EIO as normal reading, let do_generic_file_read do the rest. At the same time we need unlock the page to avoid system stuck. Fixes http://bugzilla.kernel.org/show_bug.cgi?id=10227 Signed-off-by: Dave Young <hidave.darkstar@gmail.com> Acked-by: Jan Kara <jack@suse.cz> Report-by: Christian Perle <chris@linuxinfotag.de> Cc: <stable@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | | | | | fs: fix kernel-doc notation warningsRandy Dunlap2008-03-19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fix kernel-doc notation warnings in fs/. Warning(mmotm-2008-0314-1449//fs/super.c:560): missing initial short description on line: * mark_files_ro Warning(mmotm-2008-0314-1449//fs/locks.c:1277): missing initial short description on line: * lease_get_mtime Warning(mmotm-2008-0314-1449//fs/locks.c:1277): missing initial short description on line: * lease_get_mtime Warning(mmotm-2008-0314-1449//fs/namei.c:1368): missing initial short description on line: * lookup_one_len: filesystem helper to lookup single pathname component Warning(mmotm-2008-0314-1449//fs/buffer.c:3221): missing initial short description on line: * bh_uptodate_or_lock: Test whether the buffer is uptodate Warning(mmotm-2008-0314-1449//fs/buffer.c:3240): missing initial short description on line: * bh_submit_read: Submit a locked buffer for reading Warning(mmotm-2008-0314-1449//fs/fs-writeback.c:30): missing initial short description on line: * writeback_acquire: attempt to get exclusive writeback access to a device Warning(mmotm-2008-0314-1449//fs/fs-writeback.c:47): missing initial short description on line: * writeback_in_progress: determine whether there is writeback in progress Warning(mmotm-2008-0314-1449//fs/fs-writeback.c:58): missing initial short description on line: * writeback_release: relinquish exclusive writeback access against a device. Warning(mmotm-2008-0314-1449//include/linux/jbd.h:351): contents before sections Warning(mmotm-2008-0314-1449//include/linux/jbd.h:561): contents before sections Warning(mmotm-2008-0314-1449//fs/jbd/transaction.c:1935): missing initial short description on line: * void journal_invalidatepage() Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | | | | | eCryptfs: Swap dput() and mntput()Michael Halcrow2008-03-19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | ecryptfs_d_release() is doing a mntput before doing the dput. This patch moves the dput before the mntput. Thanks to Rajouri Jammu for reporting this. Signed-off-by: Michael Halcrow <mhalcrow@us.ibm.com> Cc: Rajouri Jammu <rajouri.jammu@gmail.com> Cc: Eric Sandeen <sandeen@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | | | | | jbd2: correctly unescape journal data blocksDuane Griffin2008-03-19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fix a long-standing typo (predating git) that will cause data corruption if a journal data block needs unescaping. At the moment the wrong buffer head's data is being unescaped. To test this case mount a filesystem with data=journal, start creating and deleting a bunch of files containing only JBD2_MAGIC_NUMBER (0xc03b3998), then pull the plug on the device. Without this patch the files will contain zeros instead of the correct data after recovery. Signed-off-by: Duane Griffin <duaneg@dghda.com> Acked-by: Jan Kara <jack@suse.cz> Cc: <linux-ext4@vger.kernel.org> Cc: <stable@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | | | | | jbd: correctly unescape journal data blocksDuane Griffin2008-03-19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fix a long-standing typo (predating git) that will cause data corruption if a journal data block needs unescaping. At the moment the wrong buffer head's data is being unescaped. To test this case mount a filesystem with data=journal, start creating and deleting a bunch of files containing only JFS_MAGIC_NUMBER (0xc03b3998), then pull the plug on the device. Without this patch the files will contain zeros instead of the correct data after recovery. Signed-off-by: Duane Griffin <duaneg@dghda.com> Acked-by: Jan Kara <jack@suse.cz> Cc: <linux-ext4@vger.kernel.org> Cc: <stable@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | | | | | ROMFS: Fix up an error in iget removalDavid Howells2008-03-19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fix up an error in iget removal in which romfs_lookup() making a successful call to romfs_iget() continues through the negative/error handling (previously the successful case jumped around the negative/error handling case): (1) inode is initialised to NULL at the top of the function, eliminating the need for specific negative-inode handling. This means the positive success handling now flows straight through. (2) Rename the labels to be clearer about what they mean. Also make romfs_lookup()'s result variable of type long so as to avoid 32-bit/64-bit conversions with PTR_ERR() and friends. Based upon a report and patch from Adam Richter. Signed-off-by: David Howells <dhowells@redhat.com> Acked-by: "Adam J. Richter" <adam@yggdrasil.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | | | | | ext3: fix wrong gfp type under transactionJosef Bacik2008-03-19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | There are several places where we make allocations with GFP_KERNEL while under a transaction, which could lead to an assertion panic or lockup if under memory pressure. This patch switches these problem areas to use GFP_NOFS to keep these problems from happening. Signed-off-by: Josef Bacik <jbacik@redhat.com> Cc: <linux-ext4@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | | | | | quota: add possibly missing iput() when quotaon and quotaoff racesJan Kara2008-03-19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We should always put inode we have reference to, even if quota was reenabled in the mean time. Signed-off-by: Jan Kara <jack@suse.cz> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | | | | | jbd: fix jbd kernel-doc notationRandy Dunlap2008-03-19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fix kernel-doc notation in jbd. Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | | | | | aio: bad AIO race in aio_complete() leads to process hangQuentin Barnes2008-03-19
|/ / / / / / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | My group ran into a AIO process hang on a 2.6.24 kernel with the process sleeping indefinitely in io_getevents(2) waiting for the last wakeup to come and it never would. We ran the tests on x86_64 SMP. The hang only occurred on a Xeon box ("Clovertown") but not a Core2Duo ("Conroe"). On the Xeon, the L2 cache isn't shared between all eight processors, but is L2 is shared between between all two processors on the Core2Duo we use. My analysis of the hang is if you go down to the second while-loop in read_events(), what happens on processor #1: 1) add_wait_queue_exclusive() adds thread to ctx->wait 2) aio_read_evt() to check tail 3) if aio_read_evt() returned 0, call [io_]schedule() and sleep In aio_complete() with processor #2: A) info->tail = tail; B) waitqueue_active(&ctx->wait) C) if waitqueue_active() returned non-0, call wake_up() The way the code is written, step 1 must be seen by all other processors before processor 1 checks for pending events in step 2 (that were recorded by step A) and step A by processor 2 must be seen by all other processors (checked in step 2) before step B is done. The race I believed I was seeing is that steps 1 and 2 were effectively swapped due to the __list_add() being delayed by the L2 cache not shared by some of the other processors. Imagine: proc 2: just before step A proc 1, step 1: adds to ctx->wait, but is not visible by other processors yet proc 1, step 2: checks tail and sees no pending events proc 2, step A: updates tail proc 1, step 3: calls [io_]schedule() and sleeps proc 2, step B: checks ctx->wait, but sees no one waiting, skips wakeup so proc 1 sleeps indefinitely My patch adds a memory barrier between steps A and B. It ensures that the update in step 1 gets seen on processor 2 before continuing. If processor 1 was just before step 1, the memory barrier makes sure that step A (update tail) gets seen by the time processor 1 makes it to step 2 (check tail). Before the patch our AIO process would hang virtually 100% of the time. After the patch, we have yet to see the process ever hang. Signed-off-by: Quentin Barnes <qbarnes+linux@yahoo-inc.com> Reviewed-by: Zach Brown <zach.brown@oracle.com> Cc: Benjamin LaHaise <bcrl@kvack.org> Cc: <stable@kernel.org> Cc: Nick Piggin <nickpiggin@yahoo.com.au> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> [ We should probably disallow that "if (waitqueue_active()) wake_up()" coding pattern, because it's so often buggy wrt memory ordering ] Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | | | | Merge branch 'audit.b49' of ↵Linus Torvalds2008-03-18
|\ \ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/viro/audit-current * 'audit.b49' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/audit-current: [PATCH] export sessionid alongside the loginuid in procfs
| * | | | | | [PATCH] export sessionid alongside the loginuid in procfsEric Paris2008-03-18
| | |/ / / / | |/| | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Eric Paris <eparis@redhat.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* | | | | | Merge branch 'for-linus' of git://git.kernel.dk/linux-2.6-blockLinus Torvalds2008-03-18
|\ \ \ \ \ \ | |/ / / / / |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | * 'for-linus' of git://git.kernel.dk/linux-2.6-block: Revert "unexport bio_{,un}map_user" relay: fix subbuf_splice_actor() adding too many pages The ps2esdi driver was marked as BROKEN more than two years ago due to being
| * | | | | Revert "unexport bio_{,un}map_user"Jens Axboe2008-03-17
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Outside users like asmlib uses the mapping functions. API wise, the export is definitely sane. It's a better idea to keep this export than to require external users to open-code this piece of code instead. Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
* | | | | | hfs_bnode_find() can fail, resulting in hfs_bnode_split() breakageAl Viro2008-03-17
|/ / / / / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | oops and fs corruption; the latter can happen even on valid fs in case of oom. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | | / nfsd: fix oops on access from high-numbered portsJ. Bruce Fields2008-03-14
| |_|_|/ |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This bug was always here, but before my commit 6fa02839bf9412e18e77 ("recheck for secure ports in fh_verify"), it could only be triggered by failure of a kmalloc(). After that commit it could be triggered by a client making a request from a non-reserved port for access to an export marked "secure". (Exports are "secure" by default.) The result is a struct svc_export with a reference count one too low, resulting in likely oopses next time the export is accessed. The reference counting here is not straightforward; a later patch will clean up fh_verify(). Thanks to Lukas Hejtmanek for the bug report and followup. Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu> Cc: Lukas Hejtmanek <xhejtman@ics.muni.cz> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | | pagemap: proper read error handlingMarcelo Tosatti2008-03-13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fix pagemap_read() error handling by releasing acquired resources and checking for get_user_pages() partial failure. Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com> Acked-by: Matt Mackall <mpm@selenic.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | | Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6Linus Torvalds2008-03-12
|\| | | | |_|/ |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (47 commits) [SCTP]: Fix local_addr deletions during list traversals. net: fix build with CONFIG_NET=n [TCP]: Prevent sending past receiver window with TSO (at last skb) rt2x00: Add new D-Link USB ID rt2x00: never disable multicast because it disables broadcast too libertas: fix the 'compare command with itself' properly drivers/net/Kconfig: fix whitespace for GELIC_WIRELESS entry [NETFILTER]: nf_queue: don't return error when unregistering a non-existant handler [NETFILTER]: nfnetlink_queue: fix EPERM when binding/unbinding and instance 0 exists [NETFILTER]: nfnetlink_log: fix EPERM when binding/unbinding and instance 0 exists [NETFILTER]: nf_conntrack: replace horrible hack with ksize() [NETFILTER]: nf_conntrack: add \n to "expectation table full" message [NETFILTER]: xt_time: fix failure to match on Sundays [NETFILTER]: nfnetlink_log: fix computation of netlink skb size [NETFILTER]: nfnetlink_queue: fix computation of allocated size for netlink skb. [NETFILTER]: nfnetlink: fix ifdef in nfnetlink_compat.h [NET]: include <linux/types.h> into linux/ethtool.h for __u* typedef [NET]: Make /proc/net a symlink on /proc/self/net (v3) RxRPC: fix rxrpc_recvmsg()'s returning of msg_name net/enc28j60: oops fix ...
| * | net: fix build with CONFIG_NET=nAndrew Morton2008-03-11
| | | | | | | | | | | | | | | | | | | | | | | | fs/built-in.o:(.rodata+0x1134): undefined reference to `proc_net_inode_operations' fs/built-in.o:(.rodata+0x1138): undefined reference to `proc_net_operations' Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | [NET]: Make /proc/net a symlink on /proc/self/net (v3)Pavel Emelyanov2008-03-07
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Current /proc/net is done with so called "shadows", but current implementation is broken and has little chances to get fixed. The problem is that dentries subtree of /proc/net directory has fancy revalidation rules to make processes living in different net namespaces see different entries in /proc/net subtree, but currently, tasks see in the /proc/net subdir the contents of any other namespace, depending on who opened the file first. The proposed fix is to turn /proc/net into a symlink, which points to /proc/self/net, which in turn shows what previously was in /proc/net - the network-related info, from the net namespace the appropriate task lives in. # ls -l /proc/net lrwxrwxrwx 1 root root 8 Mar 5 15:17 /proc/net -> self/net In other words - this behaves like /proc/mounts, but unlike "mounts", "net" is not a file, but a directory. Changes from v2: * Fixed discrepancy of /proc/net nlink count and selinux labeling screwup pointed out by Stephen. To get the correct nlink count the ->getattr callback for /proc/net is overridden to read one from the net->proc_net entry. To make selinux still work the net->proc_net entry is initialized properly, i.e. with the "net" name and the proc_net parent. Selinux fixes are Acked-by: Stephen Smalley <sds@tycho.nsa.gov> Changes from v1: * Fixed a task_struct leak in get_proc_task_net, pointed out by Paul. Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Acked-by: "Eric W. Biederman" <ebiederm@xmission.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | | ocfs2: Fix NULL pointer dereferences in o2netTao Ma2008-03-10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In some situations, ocfs2_set_nn_state might get called with sc = NULL and valid = 0. If sc = NULL, we can't dereference it to get the o2nm_node member. Instead, do what o2net_initialize_handshake does and use NULL when calling o2net_reconnect_delay and o2net_idle_timeout. Signed-off-by: Tao Ma <tao.ma@oracle.com> Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
* | | ocfs2/dlm: dlm_thread should not sleep while holding the dlm_spinlockSunil Mushran2008-03-10
| | | | | | | | | | | | | | | | | | | | | | | | | | | This patch addresses the bug in which the dlm_thread could go to sleep while holding the dlm_spinlock. Signed-off-by: Sunil Mushran <sunil.mushran@oracle.com> Signed-off-by: Joel Becker <joel.becker@oracle.com> Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
* | | ocfs2/dlm: Print message showing the recovery masterSunil Mushran2008-03-10
| | | | | | | | | | | | | | | | | | | | | | | | | | | Knowing the dlm recovery master helps in debugging recovery issues. This patch prints a message on the recovery master node. Signed-off-by: Sunil Mushran <sunil.mushran@oracle.com> Signed-off-by: Joel Becker <joel.becker@oracle.com> Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
* | | ocfs2/dlm: Add missing dlm_lockres_put()sSunil Mushran2008-03-10
| | | | | | | | | | | | | | | | | | | | | | | | | | | dlm_master_request_handler() forgot to put a lockres when dlm_assert_master_worker() failed or was skipped. Signed-off-by: Sunil Mushran <sunil.mushran@oracle.com> Signed-off-by: Joel Becker <joel.becker@oracle.com> Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
* | | ocfs2/dlm: Add missing dlm_lockres_put()s in migration pathSunil Mushran2008-03-10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | During migration, the recovery master node may be asked to master a lockres it may not know about. In that case, it would not only have to create a lockres and add it to the hash, but also remember to to do the _put_ corresponding to the kref_init in dlm_init_lockres(), as soon as the migration is completed. Yes, we don't wait for the dlm_purge_lockres() to do that matching put. Note the ref added for it being in the hash protects the lockres from being freed prematurely. This patch adds that missing put, as described above, to plug a memleak. Signed-off-by: Sunil Mushran <sunil.mushran@oracle.com> Signed-off-by: Joel Becker <joel.becker@oracle.com> Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
* | | ocfs2/dlm: Add missing dlm_lock_put()sSunil Mushran2008-03-10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Normally locks for remote nodes are freed when that node sends an UNLOCK message to the master. The master node tags an DLM_UNLOCK_FREE_LOCK action to do an extra put on the lock at the end. However, there are times when the master node has to free the locks for the remote nodes forcibly. Two cases when this happens are: 1. When the master has migrated the lockres plus all locks to another node. 2. When the master is clearing all the locks of a dead node. It was in the above two conditions that the dlm was missing the extra put. Signed-off-by: Sunil Mushran <sunil.mushran@oracle.com> Signed-off-by: Joel Becker <joel.becker@oracle.com> Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
* | | ocfs2: Fix an endian bug in online resize.Tao Ma2008-03-10
| | | | | | | | | | | | | | | | | | | | | | | | | | | In ocfs2_group_add, 'cr' is a disk field of type 'ocfs2_chain_rec', and we were putting cpu byteorder values into it. Swap things to the right endian before storing. Signed-off-by: Tao Ma <tao.ma@oracle.com> Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
* | | [PATCH] [OCFS2]: constify function pointer tablesJan Engelhardt2008-03-10
| | | | | | | | | | | | | | | Signed-off-by: Jan Engelhardt <jengelh@computergmbh.de> Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
* | | ocfs2: Fix endian bug in o2dlm protocol negotiation.Joel Becker2008-03-10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | struct dlm_query_join_packet is made up of four one-byte fields. They are effectively in big-endian order already. However, little-endian machines swap them before putting the packet on the wire (because query_join's response is a status, and that status is treated as a u32 on the wire). Thus, a big-endian and little-endian machines will treat this structure differently. The solution is to have little-endian machines swap the structure when converting from the structure to the u32 representation. Signed-off-by: Joel Becker <joel.becker@oracle.com> Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
* | | ocfs2: Use dlm_print_one_lock_resource for lock resource printTao Ma2008-03-10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | __dlm_print_one_lock_resource must be called with spin_lock the res->spinlock. While in some cases, we use it without this precondition and lead to the failure of assert_spin_locked. So call dlm_print_one_lock_resource instead. Signed-off-by: Tao Ma <tao.ma@oracle.com> Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
* | | [PATCH] fs/ocfs2/dlm/dlmdomain.c: fix printk warningAndrew Morton2008-03-10
| |/ |/| | | | | | | | | | | | | fs/ocfs2/dlm/dlmdomain.c: In function 'dlm_send_join_cancels': fs/ocfs2/dlm/dlmdomain.c:983: warning: format '%u' expects type 'unsigned int', but argument 7 has type 'long unsigned int' Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
* | Merge branch 'hotfixes' of git://git.linux-nfs.org/projects/trondmy/nfs-2.6Linus Torvalds2008-03-07
|\ \ | | | | | | | | | | | | | | | | | | | | | * 'hotfixes' of git://git.linux-nfs.org/projects/trondmy/nfs-2.6: NFS: Fix dentry revalidation for NFSv4 referrals and mountpoint crossings NFS: Fix the fsid revalidation in nfs_update_inode() SUNRPC: Fix a nfs4 over rdma transport oops NFS: Fix an f_mode/f_flags confusion in fs/nfs/write.c
| * | NFS: Fix dentry revalidation for NFSv4 referrals and mountpoint crossingsTrond Myklebust2008-03-07
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | As long as the directory contents haven't changed, we should just let the path walk proceed to cross the mountpoint. Apart from being an optimisation in the case of 'nohide' mountpoint traversals, it also fixes an issue with referrals: referral inodes don't have valid filehandles, so calling nfs_revalidate_inode() on them is a bug. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>