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| author | Mike Snitzer <snitzer@redhat.com> | 2016-09-14 20:28:30 +0300 |
|---|---|---|
| committer | Jens Axboe <axboe@fb.com> | 2016-09-14 20:48:34 +0300 |
| commit | 2849450ad39d2e699fda2d5c6f41e05d87fd7004 (patch) | |
| tree | 086e7fd583a30bdefcfe01bd3fef60eeda4ad742 /include/linux/blk-mq.h | |
| parent | c5c5ca777469f0ff854f1da0aff9b3a9051b3ef7 (diff) | |
| download | linux-2849450ad39d2e699fda2d5c6f41e05d87fd7004.tar.xz | |
blk-mq: introduce blk_mq_delay_kick_requeue_list()
blk_mq_delay_kick_requeue_list() provides the ability to kick the
q->requeue_list after a specified time. To do this the request_queue's
'requeue_work' member was changed to a delayed_work.
blk_mq_delay_kick_requeue_list() allows DM to defer processing requeued
requests while it doesn't make sense to immediately requeue them
(e.g. when all paths in a DM multipath have failed).
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
Diffstat (limited to 'include/linux/blk-mq.h')
| -rw-r--r-- | include/linux/blk-mq.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/blk-mq.h b/include/linux/blk-mq.h index ff14f68067aa..60ef14cbcd2d 100644 --- a/include/linux/blk-mq.h +++ b/include/linux/blk-mq.h @@ -233,6 +233,7 @@ void blk_mq_requeue_request(struct request *rq); void blk_mq_add_to_requeue_list(struct request *rq, bool at_head); void blk_mq_cancel_requeue_work(struct request_queue *q); void blk_mq_kick_requeue_list(struct request_queue *q); +void blk_mq_delay_kick_requeue_list(struct request_queue *q, unsigned long msecs); void blk_mq_abort_requeue_list(struct request_queue *q); void blk_mq_complete_request(struct request *rq, int error); |