Sage Weil aea9dd519b Btrfs: fix race in WAIT_SYNC ioctl ...

commit 42383020be upstream.

We check whether transid is already committed via last_trans_committed and
then search through trans_list for pending transactions.  If
last_trans_committed is updated by btrfs_commit_transaction after we check
it (there is no locking), we will fail to find the committed transaction
and return EINVAL to the caller.  This has been observed occasionally by
ceph-osd (which uses this ioctl heavily).

Fix by rechecking whether the provided transid <= last_trans_committed
after the search fails, and if so return 0.

Signed-off-by: Sage Weil <sage@redhat.com>
Signed-off-by: Chris Mason <clm@fb.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

2014-10-30 09:35:09 -07:00

..

acl.c

Btrfs: fix incorrect inode acl reset

2013-12-20 07:45:12 -08:00

async-thread.c

Btrfs: call the ordered free operation without any locks held

2012-07-25 16:15:07 -04:00

async-thread.h

btrfs: return void in functions without error conditions

2012-03-22 01:45:34 +01:00

backref.c

Btrfs: fix scrub_print_warning to handle skinny metadata extents

2014-06-30 20:09:46 -07:00

backref.h

Btrfs: fix scrub_print_warning to handle skinny metadata extents

2014-06-30 20:09:46 -07:00

btrfs_inode.h

btrfs: fix minor typo in comment

2013-05-06 15:54:49 -04:00

check-integrity.c

Btrfs: use a btrfs bioset instead of abusing bio internals

2013-05-17 21:52:52 -04:00

check-integrity.h

Btrfs: add optional integrity check code

2011-12-21 19:14:09 +01:00

compat.h

Btrfs: drop remaining LINUX_KERNEL_VERSION checks and compat code

2009-01-06 09:38:55 -05:00

compression.c

Btrfs: fix data corruption when reading/updating compressed extents

2014-03-23 21:38:20 -07:00

compression.h

btrfs: make static code static & remove dead code

2013-05-06 15:55:23 -04:00

ctree.c

Btrfs: only do the tree_mod_log_free_eb if this is our last ref

2013-07-21 18:21:32 -07:00

ctree.h

Btrfs: handle running extent ops with skinny metadata

2013-05-17 21:40:15 -04:00

delayed-inode.c

btrfs: make static code static & remove dead code

2013-05-06 15:55:23 -04:00

delayed-inode.h

Btrfs: improve the delayed inode throttling

2013-03-07 07:52:40 -05:00

delayed-ref.c

Btrfs: separate sequence numbers for delayed ref tracking and tree mod log

2013-05-06 15:55:17 -04:00

delayed-ref.h

Btrfs: handle running extent ops with skinny metadata

2013-05-17 21:40:15 -04:00

dev-replace.c

Btrfs: don't allow device replace on RAID5/RAID6

2013-05-17 21:40:16 -04:00

dev-replace.h

Btrfs: add new sources for device replace code

2012-12-12 17:15:41 -05:00

dir-item.c

btrfs: make static code static & remove dead code

2013-05-06 15:55:23 -04:00

disk-io.c

Btrfs: make sure there are not any read requests before stopping workers

2014-06-30 20:09:46 -07:00

disk-io.h

btrfs: make static code static & remove dead code

2013-05-06 15:55:23 -04:00

export.c

fs: encode_fh: return FILEID_INVALID if invalid fid_type

2013-02-26 02:46:10 -05:00

export.h

NFS support for btrfs - v3

2008-09-25 11:04:06 -04:00

extent_io.c

btrfs: fix use of uninit "ret" in end_extent_writepage()

2014-06-30 20:09:46 -07:00

extent_io.h

Btrfs: use a btrfs bioset instead of abusing bio internals

2013-05-17 21:52:52 -04:00

extent_map.c

btrfs: make static code static & remove dead code

2013-05-06 15:55:23 -04:00

extent_map.h

Btrfs: fix bad extent logging

2013-05-06 15:54:34 -04:00

extent-tree.c

Btrfs: handle EAGAIN case properly in btrfs_drop_snapshot()

2014-02-06 11:08:18 -08:00

file-item.c

Btrfs: fix csum tree corruption, duplicate and outdated checksums

2014-09-05 16:28:36 -07:00

file.c

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs

2013-05-09 13:07:40 -07:00

free-space-cache.c

Btrfs: output warning instead of error when loading free space cache failed

2014-06-30 20:09:45 -07:00

free-space-cache.h

Btrfs: don't use global block reservation for inode cache truncation

2013-05-17 21:40:22 -04:00

hash.h

btrfs: extended inode refs

2012-10-09 09:14:45 -04:00

inode-item.c

btrfs: make static code static & remove dead code

2013-05-06 15:55:23 -04:00

inode-map.c

Btrfs: don't use global block reservation for inode cache truncation

2013-05-17 21:40:22 -04:00

inode-map.h

Btrfs: Support reading/writing on disk free ino cache

2011-04-25 16:46:11 +08:00

inode.c

Btrfs: try not to ENOSPC on log replay

2014-10-30 09:35:09 -07:00

ioctl.c

btrfs: restrict snapshotting to own subvolumes

2014-02-06 11:08:18 -08:00

Kconfig

btrfs: move leak debug code to functions

2013-05-06 15:55:16 -04:00

locking.c

btrfs: make static code static & remove dead code

2013-05-06 15:55:23 -04:00

locking.h

Btrfs: remove btrfs_try_spin_lock

2013-03-14 14:57:10 -04:00

lzo.c

btrfs: remove the second argument of k[un]map_atomic()

2012-03-20 21:48:21 +08:00

Makefile

Btrfs: RAID5 and RAID6

2013-02-01 14:24:23 -05:00

math.h

Btrfs: cleanup duplicated division functions

2012-12-11 13:31:30 -05:00

ordered-data.c

Btrfs: improve the performance of the csums lookup

2013-05-06 15:54:35 -04:00

ordered-data.h

Btrfs: improve the performance of the csums lookup

2013-05-06 15:54:35 -04:00

orphan.c

btrfs: replace many BUG_ONs with proper error handling

2012-03-22 11:52:54 +01:00

print-tree.c

Btrfs: Include the device in most error printk()s

2013-05-06 15:54:23 -04:00

print-tree.h

btrfs: make static code static & remove dead code

2013-05-06 15:55:23 -04:00

qgroup.c

Btrfs: automatic rescan after "quota enable" command

2013-05-06 15:55:20 -04:00

raid56.c

Btrfs: use a btrfs bioset instead of abusing bio internals

2013-05-17 21:52:52 -04:00

raid56.h

Btrfs: RAID5 and RAID6

2013-02-01 14:24:23 -05:00

rcu-string.h

Btrfs: use rcu to protect device->name

2012-06-14 21:29:16 -04:00

reada.c

Btrfs: fix reada debug code compilation

2013-05-06 15:54:55 -04:00

relocation.c

Btrfs: fix build_backref_tree issue with multiple shared blocks

2014-10-30 09:35:09 -07:00

root-tree.c

Btrfs: delete unused parameter to btrfs_read_root_item()

2013-05-06 15:55:14 -04:00

scrub.c

Btrfs: fix scrub_print_warning to handle skinny metadata extents

2014-06-30 20:09:46 -07:00

send.c

Btrfs: send, don't error in the presence of subvols/snapshots

2014-06-30 20:09:46 -07:00

send.h

btrfs: make static code static & remove dead code

2013-05-06 15:55:23 -04:00

struct-funcs.c

Btrfs: rewrite BTRFS_SETGET_FUNCS

2012-07-23 16:28:06 -04:00

super.c

Btrfs: pause the space balance when remounting to R/O

2013-05-17 21:40:31 -04:00

sysfs.c

btrfs: fixup/remove module.h usage as required

2013-03-01 15:01:01 -05:00

transaction.c

Btrfs: fix race in WAIT_SYNC ioctl

2014-10-30 09:35:09 -07:00

transaction.h

btrfs: make static code static & remove dead code

2013-05-06 15:55:23 -04:00

tree-defrag.c

btrfs: remove cache only arguments from defrag path

2013-02-20 12:59:36 -05:00

tree-log.c

Btrfs: fix hole check in log_one_extent

2013-12-20 07:45:12 -08:00

tree-log.h

btrfs: make static code static & remove dead code

2013-05-06 15:55:23 -04:00

ulist.c

Btrfs: fix crash regarding to ulist_add_merge

2013-08-11 18:35:24 -07:00

ulist.h

Btrfs: add a rb_tree to improve performance of ulist search

2013-05-06 15:54:44 -04:00

version.h

Update Btrfs files for in-kernel usage

2008-09-25 15:41:59 -04:00

volumes.c

fs: btrfs: volumes.c: Fix for possible null pointer dereference

2014-06-30 20:09:46 -07:00

volumes.h

Btrfs: use a btrfs bioset instead of abusing bio internals

2013-05-17 21:52:52 -04:00

xattr.c

btrfs: make static code static & remove dead code

2013-05-06 15:55:23 -04:00

xattr.h

fs/vfs/security: pass last path component to LSM on inode creation

2011-02-01 11:12:29 -05:00

zlib.c

btrfs: fix message printing

2012-10-09 09:19:57 -04:00