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Diffstat (limited to 'block/blk-mq.c')
| -rw-r--r-- | block/blk-mq.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/block/blk-mq.c b/block/blk-mq.c index 383ea0cb1f0a..a13c40ca8230 100644 --- a/block/blk-mq.c +++ b/block/blk-mq.c @@ -393,6 +393,12 @@ static void blk_mq_start_request(struct request *rq, bool last) blk_add_timer(rq); /* + * Ensure that ->deadline is visible before set the started + * flag and clear the completed flag. + */ + smp_mb__before_atomic(); + + /* * Mark us as started and clear complete. Complete might have been * set if requeue raced with timeout, which then marked it as * complete. So be sure to clear complete again when we start |