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| author | Stefan Behrens <sbehrens@giantdisaster.de> | 2012-11-27 16:10:21 +0000 |
|---|---|---|
| committer | Chris Mason <chris.mason@fusionio.com> | 2012-12-16 20:46:13 -0500 |
| commit | cb3806ec88a7e1e9d1fbde34cbc0bf153b7e7c3f (patch) | |
| tree | 2e02ffad4235261cdb04b1eca1cbc9e7e83a3798 /include | |
| parent | b66f00da0cfceb856c17706b77906b63437f6fda (diff) | |
| download | linux-cb3806ec88a7e1e9d1fbde34cbc0bf153b7e7c3f.tar.gz linux-cb3806ec88a7e1e9d1fbde34cbc0bf153b7e7c3f.tar.bz2 linux-cb3806ec88a7e1e9d1fbde34cbc0bf153b7e7c3f.zip | |
Btrfs: fix race in check-integrity caused by usage of bitfield
The structure member mirror_num is modified concurrently to the
structure member is_iodone. This doesn't require any locking by
design, unless everything is stored in the same 32 bits of a
bit field. This was the case and xfstest 284 was able to
trigger false warnings from the checker code. This patch
seperates the bits and fixes the race.
Signed-off-by: Stefan Behrens <sbehrens@giantdisaster.de>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
Diffstat (limited to 'include')
0 files changed, 0 insertions, 0 deletions