diff options
| author | Alexander Gordeev <agordeev@redhat.com> | 2014-06-17 22:12:35 -0700 |
|---|---|---|
| committer | Jens Axboe <axboe@fb.com> | 2014-06-17 22:12:35 -0700 |
| commit | 8537b12034cf1fd3fab3da2c859d71f76846fae9 (patch) | |
| tree | eef471e49e99b4e78d180f1158258ef1d5eb0aca /include | |
| parent | 736ed4de766d4f0e8e6142dd4f9d73ef61835ed9 (diff) | |
blk-mq: bitmap tag: fix races on shared ::wake_index fields
Fix racy updates of shared blk_mq_bitmap_tags::wake_index
and blk_mq_hw_ctx::wake_index fields.
Cc: Ming Lei <tom.leiming@gmail.com>
Signed-off-by: Alexander Gordeev <agordeev@redhat.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/blk-mq.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/include/linux/blk-mq.h b/include/linux/blk-mq.h index a002cf19142..eb726b9c576 100644 --- a/include/linux/blk-mq.h +++ b/include/linux/blk-mq.h @@ -42,7 +42,7 @@ struct blk_mq_hw_ctx { unsigned int nr_ctx; struct blk_mq_ctx **ctxs; - unsigned int wait_index; + atomic_t wait_index; struct blk_mq_tags *tags; |