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The branch, for-next has been updated
a0e881b Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
d9457dc xfs: Convert to new freezing code
37cd960 Merge tag 'for-linus-v3.6-rc1' of git://oss.sgi.com/xfs/xfs
9a57fa8 xfs: wait for the write the superblock on unmount
8375f92 xfs: re-enable xfsaild idle mode and fix associated races
4f59af7 xfs: remove iolock lock classes
5a15322 xfs: avoid the iolock in xfs_free_eofblocks for evicted inodes
0b56185 xfs: do not take the iolock in xfs_inactive
fe67be0 xfs: remove xfs_inactive_attrs
b373e98 xfs: clean up xfs_inactive
be60fe5 xfs: do not read the AGI buffer in xfs_dialloc until nessecary
55d6af6 xfs: refactor xfs_ialloc_ag_select
4bb6106 xfs: add a short cut to xfs_dialloc for the non-NULL agbp case
0835890 xfs: remove the alloc_done argument to xfs_dialloc
f2ecc5e xfs: split xfs_dialloc
a66d2c8 Merge branch 'for-linus-2' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
765927b switch dentry_open() to struct path, make it grab references itself
824c313 xfs: remove xfs_ialloc_find_free
0d882a3 Prefix IO_XX flags with XFS_IO_XX to avoid namespace colision.
129dbc9 xfs: remove xfs_inotobp
475ee41 xfs: merge xfs_itobp into xfs_imap_to_bp
6b7a03f xfs: handle EOF correctly in xfs_vm_writepage
69ff282 xfs: implement ->update_time
96ee34b xfs: fix comment typo of struct xfs_da_blkinfo.
ebfc3b4 don't pass nameidata to ->create()
00cd8dd stop passing nameidata to ->lookup()
1632dcc xfs: do not call xfs_bdstrat_cb in xfs_buf_iodone_callbacks
40a9b79 xfs: prevent recursion in xfs_buf_iorequest
aa29284 xfs: don't defer metadata allocation to the workqueue
e3a746f5 xfs: really fix the cursor leak in xfs_alloc_ag_vextent_near
a2dcf5d xfs: do not call xfs_bdstrat_cb in xfs_buf_iodone_callbacks
08023d6 xfs: prevent recursion in xfs_buf_iorequest
eb71a12 xfs: don't defer metadata allocation to the workqueue
1f432a8 xfs: really fix the cursor leak in xfs_alloc_ag_vextent_near
9b73bd7 xfs: factor buffer reading from xfs_dir2_leaf_getdents
1d9025e xfs: remove struct xfs_dabuf and infrastructure
3605431 xfs: use discontiguous xfs_buf support in dabuf wrappers
372cc85 xfs: support discontiguous buffers in the xfs_buf_log_item
de2a4f5 xfs: add discontiguous buffer support to transactions
6dde270 xfs: add discontiguous buffer map interface
3e85c86 xfs: convert internal buffer functions to pass maps
cbb7baa xfs: separate buffer indexing from block map
77c1a08 xfs: struct xfs_buf_log_format isn't variable sized.
9a8d2fd xfs: remove xlog_t typedef
f7bdf03 xfs: rename log structure to xlog
8866fc6 xfs: shutdown xfs_sync_worker before the log
59c84ed0 xfs: Fix overallocation in xfs_buf_allocate_memory()
76d0953 xfs: fix allocbt cursor leak in xfs_alloc_ag_vextent_near
9a3a5da xfs: check for stale inode before acquiring iflock on push
ad223e6 xfs: rename log structure to xlog
11159a0 xfs: shutdown xfs_sync_worker before the log
bcf62ab xfs: Fix overallocation in xfs_buf_allocate_memory()
079da28 xfs: fix allocbt cursor leak in xfs_alloc_ag_vextent_near
76e8f13 xfs: check for stale inode before acquiring iflock on push
3b876c8 xfs: fix debug_object WARN at xfs_alloc_vextent()
66f9311 xfs: xfs_vm_writepage clear iomap_valid when !buffer_uptodate (REV2)
51c8422 xfs: fix typo in comment of xfs_dinode_t.
5276432 xfs: kill copy and paste segment checks in xfs_file_aio_read
3297238 xfs: make largest supported offset less shouty
d2c2819 xfs: m_maxioffset is redundant
0f2cf9d xfs: fix debug_object WARN at xfs_alloc_vextent()
7d0fa3e xfs: xfs_vm_writepage clear iomap_valid when !buffer_uptodate (REV2)
c3b2da3 fs: introduce inode operation ->update_time
b0b0382 ->encode_fh() API change
77ba787 xfs: switch to proper __bitwise type for KM_... flags
90324cc Merge tag 'writeback' of git://git.kernel.org/pub/scm/linux/kernel/git/wfg/linux
14c26c6 xfs: add trace points for log forces
3ba3160 xfs: fix memory reclaim deadlock on agi buffer
ea562ed xfs: fix delalloc quota accounting on failure
1307bbd xfs: protect xfs_sync_worker with s_umount semaphore
3fe3e6b xfs: introduce SEEK_DATA/SEEK_HOLE support
e700a06 xfs: make xfs_extent_busy_trim not static
611c994 xfs: make XBF_MAPPED the default behaviour
d4f3512 xfs: flush outstanding buffers on log mount failure
12bcb3f xfs: Properly exclude IO type flags from buffer flags
ad1e95c xfs: clean up xfs_bit.h includes
2af51f3 xfs: move xfs_do_force_shutdown() and kill xfs_rw.c
2a0ec1d xfs: move xfs_get_extsz_hint() and kill xfs_rw.h
fd50092 xfs: move xfs_fsb_to_db to xfs_bmap.h
4ecbfe6 xfs: clean up busy extent naming
efc27b5 xfs: move busy extent handling to it's own file
60a3460 xfs: move xfsagino_t to xfs_types.h
bc4010e xfs: use iolock on XFS_IOC_ALLOCSP calls
aa5c158 xfs: kill XBF_DONTBLOCK
7ca790a xfs: kill xfs_read_buf()
a8acad7 xfs: kill XBF_LOCK
795cac7 xfs: kill xfs_buf_btoc
aa0e883 xfs: use blocks for storing the desired IO size
4e94b71 xfs: use blocks for counting length of buffers
de1cbee xfs: kill b_file_offset
e70b73f xfs: clean up buffer get/read call API
bf813cd xfs: use kmem_zone_zalloc for buffers
ead360c xfs: fix incorrect b_offset initialisation
0e95f19 xfs: check for buffer errors before waiting
fe2429b xfs: fix buffer lookup race on allocation failure
aff3a9e xfs: Use preallocation for inodes with extsz hints
3ed9116 xfs: limit specualtive delalloc to maxioffset
58e2077 xfs: don't assert on delalloc regions beyond EOF
81158e0 xfs: prevent needless mount warning causing test failures
d3bc815 xfs: punch new delalloc blocks out of failed writes inside EOF.
6ffc4db xfs: page type check in writeback only checks last buffer
4c2d542 xfs: Do background CIL flushes via a workqueue
04913fd xfs: pass shutdown method into xfs_trans_ail_delete_bulk
a856917 xfs: remove some obsolete comments in xfs_trans_ail.c
43ff212 xfs: on-stack delayed write buffer lists
960c60a xfs: do not add buffers to the delwri queue until pushed
fe7257f xfs: do not write the buffer from xfs_qm_dqflush
4c46819 xfs: do not write the buffer from xfs_iflush
8a48088 xfs: don't flush inodes from background inode reclaim
211e4d4 xfs: implement freezing by emptying the AIL
1c30462 xfs: allow assigning the tail lsn with the AIL lock held
32ce90a xfs: remove log item from AIL in xfs_iflush after a shutdown
dea9609 xfs: remove log item from AIL in xfs_qm_dqflush after a shutdown
7582df5 xfs: using GFP_NOFS for blkdev_issue_flush
01c84d2 xfs: punch all delalloc blocks beyond EOF on write failure.
507630b xfs: use shared ilock mode for direct IO writes by default
193aec1 xfs: push the ilock into xfs_zero_eof
f38996f xfs: reduce ilock hold times in xfs_setattr_size
467f789 xfs: reduce ilock hold times in xfs_file_aio_write_checks
b4d05e3 xfs: avoid taking the ilock unnessecarily in xfs_qm_dqattach
dbd5768 vfs: Rename end_writeback() to clear_inode()
8a00ebe xfs: Ensure inode reclaim can run during quotacheck
da5bf95 xfs: don't fill statvfs with project quota for a directory if it was not enabled.
0195c00 Merge tag 'split-asm_system_h-for-linus-20120328' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-asm_system
f21ce8f Merge branch 'for-linus' of git://oss.sgi.com/xfs/xfs
9ffc93f Remove all #inclusions of asm/system.h
5a5881c xfs: add lots of attribute trace points
d97d32e xfs: Fix oops on IO error during xlog_recover_process_iunlinks()
a66d636 xfs: fix fstrim offset calculations
3948659 xfs: Account log unmount transaction correctly
5132ba8 xfs: don't cache inodes read through bulkstat
f616137 xfs: trace xfs_name strings correctly
49d99a2 Merge branch 'for-linus' of git://oss.sgi.com/xfs/xfs
48fde70 switch open-coded instances of d_make_root() to new helper
8de5277 vfs: check i_nlink limits in vfs_{mkdir,rename_dir,link}
c922bbc xfs: make inode quota check more general
20f12d8 xfs: change available ranges of softlimit and hardlimit in quota check
0529348 XFS: xfs_trans_add_item() - don't assign in ASSERT() when compare is intended
04da0c8 xfs: use a normal shrinker for the dquot freelist
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- Log -----------------------------------------------------------------
commit a0e881b7c189fa2bd76c024dbff91e79511c971d
Merge: eff0d13 dbc6e02
Author: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx>
Date: Wed Aug 1 10:26:23 2012 -0700
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull second vfs pile from Al Viro:
"The stuff in there: fsfreeze deadlock fixes by Jan (essentially, the
deadlock reproduced by xfstests 068), symlink and hardlink restriction
patches, plus assorted cleanups and fixes.
Note that another fsfreeze deadlock (emergency thaw one) is *not*
dealt with - the series by Fernando conflicts a lot with Jan's, breaks
userland ABI (FIFREEZE semantics gets changed) and trades the deadlock
for massive vfsmount leak; this is going to be handled next cycle.
There probably will be another pull request, but that stuff won't be
in it."
Fix up trivial conflicts due to unrelated changes next to each other in
drivers/{staging/gdm72xx/usb_boot.c, usb/gadget/storage_common.c}
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (54 commits)
delousing target_core_file a bit
Documentation: Correct s_umount state for freeze_fs/unfreeze_fs
fs: Remove old freezing mechanism
ext2: Implement freezing
btrfs: Convert to new freezing mechanism
nilfs2: Convert to new freezing mechanism
ntfs: Convert to new freezing mechanism
fuse: Convert to new freezing mechanism
gfs2: Convert to new freezing mechanism
ocfs2: Convert to new freezing mechanism
xfs: Convert to new freezing code
ext4: Convert to new freezing mechanism
fs: Protect write paths by sb_start_write - sb_end_write
fs: Skip atime update on frozen filesystem
fs: Add freezing handling to mnt_want_write() / mnt_drop_write()
fs: Improve filesystem freezing handling
switch the protection of percpu_counter list to spinlock
nfsd: Push mnt_want_write() outside of i_mutex
btrfs: Push mnt_want_write() outside of i_mutex
fat: Push mnt_want_write() outside of i_mutex
...
commit d9457dc056249913a7abe8b71dc09e427e590e35
Author: Jan Kara <jack@xxxxxxx>
Date: Tue Jun 12 16:20:39 2012 +0200
xfs: Convert to new freezing code
Generic code now blocks all writers from standard write paths. So we add
blocking of all writers coming from ioctl (we get a protection of ioctl against
racing remount read-only as a bonus) and convert xfs_file_aio_write() to a
non-racy freeze protection. We also keep freeze protection on transaction
start to block internal filesystem writes such as removal of preallocated
blocks.
CC: Ben Myers <bpm@xxxxxxx>
CC: Alex Elder <elder@xxxxxxxxxx>
CC: xfs@xxxxxxxxxxx
Signed-off-by: Jan Kara <jack@xxxxxxx>
Signed-off-by: Al Viro <viro@xxxxxxxxxxxxxxxxxx>
commit 37cd9600a9e20359b0283983c9e3a55d84347168
Merge: 95b18e6 9a57fa8
Author: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx>
Date: Mon Jul 30 13:37:53 2012 -0700
Merge tag 'for-linus-v3.6-rc1' of git://oss.sgi.com/xfs/xfs
Pull xfs update from Ben Myers:
"Numerous cleanups and several bug fixes. Here are some highlights:
- Discontiguous directory buffer support
- Inode allocator refactoring
- Removal of the IO lock in inode reclaim
- Implementation of .update_time
- Fix for handling of EOF in xfs_vm_writepage
- Fix for races in xfsaild, and idle mode is re-enabled
- Fix for a crash in xfs_buf completion handlers on unmount."
Fix up trivial conflicts in fs/xfs/{xfs_buf.c,xfs_log.c,xfs_log_priv.h}
due to duplicate patches that had already been merged for 3.5.
* tag 'for-linus-v3.6-rc1' of git://oss.sgi.com/xfs/xfs: (44 commits)
xfs: wait for the write the superblock on unmount
xfs: re-enable xfsaild idle mode and fix associated races
xfs: remove iolock lock classes
xfs: avoid the iolock in xfs_free_eofblocks for evicted inodes
xfs: do not take the iolock in xfs_inactive
xfs: remove xfs_inactive_attrs
xfs: clean up xfs_inactive
xfs: do not read the AGI buffer in xfs_dialloc until nessecary
xfs: refactor xfs_ialloc_ag_select
xfs: add a short cut to xfs_dialloc for the non-NULL agbp case
xfs: remove the alloc_done argument to xfs_dialloc
xfs: split xfs_dialloc
xfs: remove xfs_ialloc_find_free
Prefix IO_XX flags with XFS_IO_XX to avoid namespace colision.
xfs: remove xfs_inotobp
xfs: merge xfs_itobp into xfs_imap_to_bp
xfs: handle EOF correctly in xfs_vm_writepage
xfs: implement ->update_time
xfs: fix comment typo of struct xfs_da_blkinfo.
xfs: do not call xfs_bdstrat_cb in xfs_buf_iodone_callbacks
...
commit a66d2c8f7ec1284206ca7c14569e2a607583f1e3
Merge: a6be1fc 8cae6f7
Author: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx>
Date: Mon Jul 23 12:27:27 2012 -0700
Merge branch 'for-linus-2' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull the big VFS changes from Al Viro:
"This one is *big* and changes quite a few things around VFS. What's in there:
- the first of two really major architecture changes - death to open
intents.
The former is finally there; it was very long in making, but with
Miklos getting through really hard and messy final push in
fs/namei.c, we finally have it. Unlike his variant, this one
doesn't introduce struct opendata; what we have instead is
->atomic_open() taking preallocated struct file * and passing
everything via its fields.
Instead of returning struct file *, it returns -E... on error, 0
on success and 1 in "deal with it yourself" case (e.g. symlink
found on server, etc.).
See comments before fs/namei.c:atomic_open(). That made a lot of
goodies finally possible and quite a few are in that pile:
->lookup(), ->d_revalidate() and ->create() do not get struct
nameidata * anymore; ->lookup() and ->d_revalidate() get lookup
flags instead, ->create() gets "do we want it exclusive" flag.
With the introduction of new helper (kern_path_locked()) we are rid
of all struct nameidata instances outside of fs/namei.c; it's still
visible in namei.h, but not for long. Come the next cycle,
declaration will move either to fs/internal.h or to fs/namei.c
itself. [me, miklos, hch]
- The second major change: behaviour of final fput(). Now we have
__fput() done without any locks held by caller *and* not from deep
in call stack.
That obviously lifts a lot of constraints on the locking in there.
Moreover, it's legal now to call fput() from atomic contexts (which
has immediately simplified life for aio.c). We also don't need
anti-recursion logics in __scm_destroy() anymore.
There is a price, though - the damn thing has become partially
asynchronous. For fput() from normal process we are guaranteed
that pending __fput() will be done before the caller returns to
userland, exits or gets stopped for ptrace.
For kernel threads and atomic contexts it's done via
schedule_work(), so theoretically we might need a way to make sure
it's finished; so far only one such place had been found, but there
might be more.
There's flush_delayed_fput() (do all pending __fput()) and there's
__fput_sync() (fput() analog doing __fput() immediately). I hope
we won't need them often; see warnings in fs/file_table.c for
details. [me, based on task_work series from Oleg merged last
cycle]
- sync series from Jan
- large part of "death to sync_supers()" work from Artem; the only
bits missing here are exofs and ext4 ones. As far as I understand,
those are going via the exofs and ext4 trees resp.; once they are
in, we can put ->write_super() to the rest, along with the thread
calling it.
- preparatory bits from unionmount series (from dhowells).
- assorted cleanups and fixes all over the place, as usual.
This is not the last pile for this cycle; there's at least jlayton's
ESTALE work and fsfreeze series (the latter - in dire need of fixes,
so I'm not sure it'll make the cut this cycle). I'll probably throw
symlink/hardlink restrictions stuff from Kees into the next pile, too.
Plus there's a lot of misc patches I hadn't thrown into that one -
it's large enough as it is..."
* 'for-linus-2' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (127 commits)
ext4: switch EXT4_IOC_RESIZE_FS to mnt_want_write_file()
btrfs: switch btrfs_ioctl_balance() to mnt_want_write_file()
switch dentry_open() to struct path, make it grab references itself
spufs: shift dget/mntget towards dentry_open()
zoran: don't bother with struct file * in zoran_map
ecryptfs: don't reinvent the wheels, please - use struct completion
don't expose I_NEW inodes via dentry->d_inode
tidy up namei.c a bit
unobfuscate follow_up() a bit
ext3: pass custom EOF to generic_file_llseek_size()
ext4: use core vfs llseek code for dir seeks
vfs: allow custom EOF in generic_file_llseek code
vfs: Avoid unnecessary WB_SYNC_NONE writeback during sys_sync and reorder sync passes
vfs: Remove unnecessary flushing of block devices
vfs: Make sys_sync writeout also block device inodes
vfs: Create function for iterating over block devices
vfs: Reorder operations during sys_sync
quota: Move quota syncing to ->sync_fs method
quota: Split dquot_quota_sync() to writeback and cache flushing part
vfs: Move noop_backing_dev_info check from sync into writeback
...
commit 765927b2d508712d320c8934db963bbe14c3fcec
Author: Al Viro <viro@xxxxxxxxxxxxxxxxxx>
Date: Tue Jun 26 21:58:53 2012 +0400
switch dentry_open() to struct path, make it grab references itself
Signed-off-by: Al Viro <viro@xxxxxxxxxxxxxxxxxx>
commit ebfc3b49a7ac25920cb5be5445f602e51d2ea559
Author: Al Viro <viro@xxxxxxxxxxxxxxxxxx>
Date: Sun Jun 10 18:05:36 2012 -0400
don't pass nameidata to ->create()
boolean "does it have to be exclusive?" flag is passed instead;
Local filesystem should just ignore it - the object is guaranteed
not to be there yet.
Signed-off-by: Al Viro <viro@xxxxxxxxxxxxxxxxxx>
commit 00cd8dd3bf95f2cc8435b4cac01d9995635c6d0b
Author: Al Viro <viro@xxxxxxxxxxxxxxxxxx>
Date: Sun Jun 10 17:13:09 2012 -0400
stop passing nameidata to ->lookup()
Just the flags; only NFS cares even about that, but there are
legitimate uses for such argument. And getting rid of that
completely would require splitting ->lookup() into a couple
of methods (at least), so let's leave that alone for now...
Signed-off-by: Al Viro <viro@xxxxxxxxxxxxxxxxxx>
commit 1632dcc93f55f9ab407b373da1957a727b1a7fe3
Author: Christoph Hellwig <hch@xxxxxxxxxxxxx>
Date: Fri Jul 13 02:24:10 2012 -0400
xfs: do not call xfs_bdstrat_cb in xfs_buf_iodone_callbacks
xfs_bdstrat_cb only adds a check for a shutdown filesystem over
xfs_buf_iorequest, but xfs_buf_iodone_callbacks just checked for a shut down
filesystem a little earlier. In addition the shutdown handling in
xfs_bdstrat_cb is not very suitable for this caller.
Signed-off-by: Christoph Hellwig <hch@xxxxxx>
Reviewed-by: Dave Chinner <dchinner@xxxxxxxxxx>
Signed-off-by: Ben Myers <bpm@xxxxxxx>
commit 40a9b7963df32e743c45d79a5f41445fe2476f15
Author: Christoph Hellwig <hch@xxxxxxxxxxxxx>
Date: Mon Jul 2 06:00:04 2012 -0400
xfs: prevent recursion in xfs_buf_iorequest
If the b_iodone handler is run in calling context in xfs_buf_iorequest we
can run into a recursion where xfs_buf_iodone_callbacks keeps calling back
into xfs_buf_iorequest because an I/O error happened, which keeps calling
back into xfs_buf_iorequest. This chain will usually not take long
because the filesystem gets shut down because of log I/O errors, but even
over a short time it can cause stack overflows if run on the same context.
As a short term workaround make sure we always call the iodone handler in
workqueue context.
Signed-off-by: Christoph Hellwig <hch@xxxxxx>
Reviewed-by: Dave Chinner <dchinner@xxxxxxxxxx>
Signed-off-by: Ben Myers <bpm@xxxxxxx>
commit aa292847b9fc6e187547110de833a7d3131bbddf
Author: Dave Chinner <dchinner@xxxxxxxxxx>
Date: Thu Jul 12 07:40:43 2012 +1000
xfs: don't defer metadata allocation to the workqueue
Almost all metadata allocations come from shallow stack usage
situations. Avoid the overhead of switching the allocation to a
workqueue as we are not in danger of running out of stack when
making these allocations. Metadata allocations are already marked
through the args that are passed down, so this is trivial to do.
Signed-off-by: Dave Chinner <dchinner@xxxxxxxxxx>
Reported-by: Mel Gorman <mgorman@xxxxxxx>
Tested-by: Mel Gorman <mgorman@xxxxxxx>
Signed-off-by: Ben Myers <bpm@xxxxxxx>
commit e3a746f5aab71f2dd0a83116772922fb37ae29d6
Author: Dave Chinner <dchinner@xxxxxxxxxx>
Date: Thu Jul 12 07:40:42 2012 +1000
xfs: really fix the cursor leak in xfs_alloc_ag_vextent_near
The current cursor is reallocated when retrying the allocation, so
the existing cursor needs to be destroyed in both the restart and
the failure cases.
Signed-off-by: Dave Chinner <dchinner@xxxxxxxxxx>
Tested-by: Mike Snitzer <snitzer@xxxxxxxxxx>
Signed-off-by: Ben Myers <bpm@xxxxxxx>
commit f7bdf03a99efc083608cd9c0c3e03abff311c79e
Author: Mark Tinguely <tinguely@xxxxxxx>
Date: Thu Jun 14 09:22:15 2012 -0500
xfs: rename log structure to xlog
Rename the XFS log structure to xlog to help crash distinquish it from the
other logs in Linux.
Signed-off-by: Mark Tinguely <tinguely@xxxxxxx>
Reviewed-by: Christoph Hellwig <hch@xxxxxx>
Signed-off-by: Ben Myers <bpm@xxxxxxx>
commit 8866fc6fa55e31b2bce931b7963ff16641b39dc7
Author: Ben Myers <bpm@xxxxxxx>
Date: Fri May 25 15:45:36 2012 -0500
xfs: shutdown xfs_sync_worker before the log
Revert commit 1307bbd, which uses the s_umount semaphore to provide
exclusion between xfs_sync_worker and unmount, in favor of shutting down
the sync worker before freeing the log in xfs_log_unmount. This is a
cleaner way of resolving the race between xfs_sync_worker and unmount
than using s_umount.
Signed-off-by: Ben Myers <bpm@xxxxxxx>
Reviewed-by: Mark Tinguely <tinguely@xxxxxxx>
Reviewed-by: Dave Chinner <dchinner@xxxxxxxxxx>
commit 59c84ed0ddc11f1823b4a33ace4fbcc948261bb2
Author: Jan Kara <jack@xxxxxxx>
Date: Wed Jun 6 00:32:26 2012 +0200
xfs: Fix overallocation in xfs_buf_allocate_memory()
Commit de1cbee which removed b_file_offset in favor of b_bn introduced a bug
causing xfs_buf_allocate_memory() to overestimate the number of necessary
pages. The problem is that xfs_buf_alloc() sets b_bn to -1 and thus effectively
every buffer is straddling a page boundary which causes
xfs_buf_allocate_memory() to allocate two pages and use vmalloc() for access
which is unnecessary.
Dave says xfs_buf_alloc() doesn't need to set b_bn to -1 anymore since the
buffer is inserted into the cache only after being fully initialized now.
So just make xfs_buf_alloc() fill in proper block number from the beginning.
CC: David Chinner <dchinner@xxxxxxxxxx>
Signed-off-by: Jan Kara <jack@xxxxxxx>
Reviewed-by: Christoph Hellwig <hch@xxxxxx>
Reviewed-by: Dave Chinner <dchinner@xxxxxxxxxx>
Signed-off-by: Ben Myers <bpm@xxxxxxx>
commit 76d095388b040229ea1aad7dea45be0cfa20f589
Author: Dave Chinner <dchinner@xxxxxxxxxx>
Date: Tue Jun 12 14:20:26 2012 +1000
xfs: fix allocbt cursor leak in xfs_alloc_ag_vextent_near
When we fail to find an matching extent near the requested extent
specification during a left-right distance search in
xfs_alloc_ag_vextent_near, we fail to free the original cursor that
we used to look up the XFS_BTNUM_CNT tree and hence leak it.
Reported-by: Chris J Arges <chris.j.arges@xxxxxxxxxxxxx>
Signed-off-by: Dave Chinner <dchinner@xxxxxxxxxx>
Reviewed-by: Christoph Hellwig <hch@xxxxxx>
Signed-off-by: Ben Myers <bpm@xxxxxxx>
commit 9a3a5dab63461b84213052888bf38a962b22d035
Author: Brian Foster <bfoster@xxxxxxxxxx>
Date: Mon Jun 11 10:39:43 2012 -0400
xfs: check for stale inode before acquiring iflock on push
An inode in the AIL can be flush locked and marked stale if
a cluster free transaction occurs at the right time. The
inode item is then marked as flushing, which causes xfsaild
to spin and leaves the filesystem stalled. This is
reproduced by running xfstests 273 in a loop for an
extended period of time.
Check for stale inodes before the flush lock. This marks
the inode as pinned, leads to a log flush and allows the
filesystem to proceed.
Signed-off-by: Brian Foster <bfoster@xxxxxxxxxx>
Reviewed-by: Dave Chinner <dchinner@xxxxxxxxxx>
Reviewed-by: Christoph Hellwig <hch@xxxxxx>
Reviewed-by: Mark Tinguely <tinguely@xxxxxxx>
Signed-off-by: Ben Myers <bpm@xxxxxxx>
commit 3b876c8f2a361ceeed3fed894980c69066f903a0
Author: Jeff Liu <jeff.liu@xxxxxxxxxx>
Date: Thu Jun 7 15:44:32 2012 +0800
xfs: fix debug_object WARN at xfs_alloc_vextent()
Fengguang reports:
[ 780.529603] XFS (vdd): Ending clean mount
[ 781.454590] ODEBUG: object is on stack, but not annotated
[ 781.455433] ------------[ cut here ]------------
[ 781.455433] WARNING: at /c/kernel-tests/sound/lib/debugobjects.c:301 __debug_object_init+0x173/0x1f1()
[ 781.455433] Hardware name: Bochs
[ 781.455433] Modules linked in:
[ 781.455433] Pid: 26910, comm: kworker/0:2 Not tainted 3.4.0+ #51
[ 781.455433] Call Trace:
[ 781.455433] [<ffffffff8106bc84>] warn_slowpath_common+0x83/0x9b
[ 781.455433] [<ffffffff8106bcb6>] warn_slowpath_null+0x1a/0x1c
[ 781.455433] [<ffffffff814919a5>] __debug_object_init+0x173/0x1f1
[ 781.455433] [<ffffffff81491c65>] debug_object_init+0x14/0x16
[ 781.455433] [<ffffffff8108842a>] __init_work+0x20/0x22
[ 781.455433] [<ffffffff8134ea56>] xfs_alloc_vextent+0x6c/0xd5
Use INIT_WORK_ONSTACK in xfs_alloc_vextent instead of INIT_WORK.
Reported-by: Wu Fengguang <wfg@xxxxxxxxxxxxxxx>
Signed-off-by: Jie Liu <jeff.liu@xxxxxxxxxx>
Signed-off-by: Ben Myers <bpm@xxxxxxx>
commit 66f9311381b4772003d595fb6c518f1647450db0
Author: Alain Renaud <arenaud@xxxxxxx>
Date: Fri Jun 8 15:34:46 2012 -0400
xfs: xfs_vm_writepage clear iomap_valid when !buffer_uptodate (REV2)
On filesytems with a block size smaller than PAGE_SIZE we currently have
a problem with unwritten extents. If a we have multi-block page for
which an unwritten extent has been allocated, and only some of the
buffers have been written to, and they are not contiguous, we can expose
stale data from disk in the blocks between the writes after extent
conversion.
Example of a page with unwritten and real data.
buffer content
0 empty b_state = 0
1 DATA b_state = 0x1023 Uptodate,Dirty,Mapped,Unwritten
2 DATA b_state = 0x1023 Uptodate,Dirty,Mapped,Unwritten
3 empty b_state = 0
4 empty b_state = 0
5 DATA b_state = 0x1023 Uptodate,Dirty,Mapped,Unwritten
6 DATA b_state = 0x1023 Uptodate,Dirty,Mapped,Unwritten
7 empty b_state = 0
Buffers 1, 2, 5, and 6 have been written to, leaving 0, 3, 4, and 7
empty. Currently buffers 1, 2, 5, and 6 are added to a single ioend,
and when IO has completed, extent conversion creates a real extent from
block 1 through block 6, leaving 0 and 7 unwritten. However buffers 3
and 4 were not written to disk, so stale data is exposed from those
blocks on a subsequent read.
Fix this by setting iomap_valid = 0 when we find a buffer that is not
Uptodate. This ensures that buffers 5 and 6 are not added to the same
ioend as buffers 1 and 2. Later these blocks will be converted into two
separate real extents, leaving the blocks in between unwritten.
Signed-off-by: Alain Renaud <arenaud@xxxxxxx>
Reviewed-by: Dave Chinner <dchinner@xxxxxxxxxx>
Signed-off-by: Ben Myers <bpm@xxxxxxx>
-----------------------------------------------------------------------
Summary of changes:
fs/xfs/Makefile | 2 +-
fs/xfs/kmem.c | 10 +-
fs/xfs/kmem.h | 21 +-
fs/xfs/xfs_ag.h | 18 -
fs/xfs/xfs_alloc.c | 607 ++-----------------------------
fs/xfs/xfs_alloc.h | 35 +-
fs/xfs/xfs_alloc_btree.c | 9 +-
fs/xfs/xfs_alloc_btree.h | 14 -
fs/xfs/xfs_aops.c | 318 +++++++++++-----
fs/xfs/xfs_aops.h | 14 +-
fs/xfs/xfs_attr.c | 119 +++---
fs/xfs/xfs_attr_leaf.c | 298 ++++++++-------
fs/xfs/xfs_attr_leaf.h | 21 +-
fs/xfs/xfs_bmap.c | 34 +-
fs/xfs/xfs_bmap.h | 3 +
fs/xfs/xfs_bmap_btree.c | 1 -
fs/xfs/xfs_btree.c | 1 -
fs/xfs/xfs_buf.c | 828 +++++++++++++++++++++---------------------
fs/xfs/xfs_buf.h | 190 ++++++----
fs/xfs/xfs_buf_item.c | 462 +++++++++++++++---------
fs/xfs/xfs_buf_item.h | 38 +-
fs/xfs/xfs_da_btree.c | 856 +++++++++++++++++++-------------------------
fs/xfs/xfs_da_btree.h | 38 +-
fs/xfs/xfs_dfrag.c | 2 -
fs/xfs/xfs_dinode.h | 2 +-
fs/xfs/xfs_dir2.c | 5 +-
fs/xfs/xfs_dir2_block.c | 119 +++---
fs/xfs/xfs_dir2_data.c | 51 ++-
fs/xfs/xfs_dir2_leaf.c | 622 ++++++++++++++++----------------
fs/xfs/xfs_dir2_node.c | 237 ++++++------
fs/xfs/xfs_dir2_priv.h | 46 +--
fs/xfs/xfs_dir2_sf.c | 5 +-
fs/xfs/xfs_discard.c | 67 ++--
fs/xfs/xfs_dquot.c | 91 ++---
fs/xfs/xfs_dquot.h | 3 +-
fs/xfs/xfs_dquot_item.c | 162 +++------
fs/xfs/xfs_error.c | 1 -
fs/xfs/xfs_export.c | 24 +-
fs/xfs/xfs_extent_busy.c | 603 +++++++++++++++++++++++++++++++
fs/xfs/xfs_extent_busy.h | 69 ++++
fs/xfs/xfs_extfree_item.c | 59 +--
fs/xfs/xfs_file.c | 363 ++++++++++++-------
fs/xfs/xfs_fsops.c | 82 ++++-
fs/xfs/xfs_ialloc.c | 442 +++++++++++------------
fs/xfs/xfs_ialloc.h | 11 -
fs/xfs/xfs_ialloc_btree.c | 1 -
fs/xfs/xfs_iget.c | 47 +--
fs/xfs/xfs_inode.c | 326 ++++++-----------
fs/xfs/xfs_inode.h | 22 +-
fs/xfs/xfs_inode_item.c | 183 +++-------
fs/xfs/xfs_inode_item.h | 2 +-
fs/xfs/xfs_inum.h | 5 -
fs/xfs/xfs_ioctl.c | 64 +++-
fs/xfs/xfs_ioctl32.c | 14 +-
fs/xfs/xfs_iomap.c | 65 ++--
fs/xfs/xfs_iops.c | 66 +++-
fs/xfs/xfs_itable.c | 6 +-
fs/xfs/xfs_log.c | 348 +++++++++++-------
fs/xfs/xfs_log.h | 1 +
fs/xfs/xfs_log_cil.c | 265 ++++++++------
fs/xfs/xfs_log_priv.h | 64 +++-
fs/xfs/xfs_log_recover.c | 306 ++++++++--------
fs/xfs/xfs_message.c | 1 -
fs/xfs/xfs_mount.c | 90 ++---
fs/xfs/xfs_mount.h | 12 +-
fs/xfs/xfs_qm.c | 198 +++++-----
fs/xfs/xfs_qm_bhv.c | 2 -
fs/xfs/xfs_qm_syscalls.c | 1 -
fs/xfs/xfs_quotaops.c | 1 -
fs/xfs/xfs_rename.c | 12 -
fs/xfs/xfs_rtalloc.c | 10 +-
fs/xfs/xfs_rw.c | 156 --------
fs/xfs/xfs_rw.h | 47 ---
fs/xfs/xfs_super.c | 161 +++------
fs/xfs/xfs_sync.c | 278 +++++---------
fs/xfs/xfs_trace.c | 2 -
fs/xfs/xfs_trace.h | 151 ++++++--
fs/xfs/xfs_trans.c | 26 +-
fs/xfs/xfs_trans.h | 72 +++-
fs/xfs/xfs_trans_ail.c | 238 ++++++------
fs/xfs/xfs_trans_buf.c | 184 ++++------
fs/xfs/xfs_trans_dquot.c | 2 -
fs/xfs/xfs_trans_extfree.c | 1 -
fs/xfs/xfs_trans_inode.c | 2 -
fs/xfs/xfs_trans_priv.h | 13 +-
fs/xfs/xfs_types.h | 19 +
fs/xfs/xfs_utils.c | 21 +-
fs/xfs/xfs_vnodeops.c | 332 ++++++-----------
88 files changed, 5370 insertions(+), 5450 deletions(-)
create mode 100644 fs/xfs/xfs_extent_busy.c
create mode 100644 fs/xfs/xfs_extent_busy.h
delete mode 100644 fs/xfs/xfs_rw.c
delete mode 100644 fs/xfs/xfs_rw.h
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