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| author | Ming Lei <tom.leiming@gmail.com> | 2014-05-10 17:01:48 (GMT) |
|---|---|---|
| committer | Jens Axboe <axboe@fb.com> | 2014-05-10 21:41:42 (GMT) |
| commit | 0289b2e110b7824b2f76d194ad6f8f0844e270ad (patch) | |
| tree | eac254d7cd5b82bda9cfb4cd8b489c6173b40659 /block/bsg-lib.c | |
| parent | 59d13bf5f57ded658c872fa22276f75ab8f12841 (diff) | |
| download | linux-0289b2e110b7824b2f76d194ad6f8f0844e270ad.tar.xz | |
blk-mq: bitmap tag: use clear_bit_unlock in bt_clear_tag()
The unlock memory barrier need to order access to req in free
path and clearing tag bit, otherwise either request free path
may see a allocated request, or initialized request in allocate
path might be modified by the ongoing free path.
Signed-off-by: Ming Lei <tom.leiming@gmail.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
Diffstat (limited to 'block/bsg-lib.c')
0 files changed, 0 insertions, 0 deletions