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(parent: 8d4f948) | patch
btrfs: sysfs: protect reading label by lock
authorDavid Sterba <dsterba@suse.com>
Tue, 26 Apr 2016 14:22:06 +0000 (16:22 +0200)
committerDavid Sterba <dsterba@suse.com>
Fri, 6 May 2016 13:22:49 +0000 (15:22 +0200)
commit35d2ccd24060b2b578bc885ec6702d69f717c7d1
tree17d8f4c3a5bf27587fa7dadf730a2ef4f88798cdtree | snapshot
parent8d4f948d009db42caf7bc9847a9f016198b110facommit | diff
btrfs: sysfs: protect reading label by lock

If the label setting ioctl races with sysfs label handler, we could get
mixed result in the output, part old part new. We should either get the
old or new label. The chances to hit this race are low.

Signed-off-by: David Sterba <dsterba@suse.com>
fs/btrfs/sysfs.c diff | blob | history
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