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| author | Josef Bacik <jbacik@fusionio.com> | 2012-09-14 14:34:40 (GMT) |
|---|---|---|
| committer | Chris Mason <chris.mason@fusionio.com> | 2012-10-04 13:39:56 (GMT) |
| commit | 60376ce4a8396bc5cd777be05b6a9bf044520f42 (patch) | |
| tree | 9648ab1c651557c640b8cdd24ce18d75b434c510 /fs/btrfs/locking.c | |
| parent | b3ae244e7174d981c09ad7a6a68e7909d600aaca (diff) | |
| download | linux-fsl-qoriq-60376ce4a8396bc5cd777be05b6a9bf044520f42.tar.xz | |
Btrfs: fix race in sync and freeze again
I screwed this up, there is a race between checking if there is a running
transaction and actually starting a transaction in sync where we could race
with a freezer and get ourselves into trouble. To fix this we need to make
a new join type to only do the try lock on the freeze stuff. If it fails
we'll return EPERM and just return from sync. This fixes a hang Liu Bo
reported when running xfstest 68 in a loop. Thanks,
Reported-by: Liu Bo <bo.li.liu@oracle.com>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Diffstat (limited to 'fs/btrfs/locking.c')
0 files changed, 0 insertions, 0 deletions