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| author | Bart Van Assche <bart.vanassche@wdc.com> | 2017-11-09 10:49:55 -0800 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2017-11-10 19:53:25 -0700 |
| commit | 1b6d65a0bfb5df2a6029c1430e99fcc5d96bb59a (patch) | |
| tree | 61e5189d6c57e5eb34cade66ef27d690f9774bb8 /block/blk-core.c | |
| parent | 6a15674d1e90917f1723a814e2e8c949000440f7 (diff) | |
| download | linux-1b6d65a0bfb5df2a6029c1430e99fcc5d96bb59a.tar.bz2 | |
block: Introduce BLK_MQ_REQ_PREEMPT
Set RQF_PREEMPT if BLK_MQ_REQ_PREEMPT is passed to
blk_get_request_flags().
Signed-off-by: Bart Van Assche <bart.vanassche@wdc.com>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Tested-by: Martin Steigerwald <martin@lichtvoll.de>
Tested-by: Oleksandr Natalenko <oleksandr@natalenko.name>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Ming Lei <ming.lei@redhat.com>
Cc: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'block/blk-core.c')
| -rw-r--r-- | block/blk-core.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/block/blk-core.c b/block/blk-core.c index 0f7093dfc010..17eed16a6e04 100644 --- a/block/blk-core.c +++ b/block/blk-core.c @@ -1263,6 +1263,8 @@ static struct request *__get_request(struct request_list *rl, unsigned int op, blk_rq_set_rl(rq, rl); rq->cmd_flags = op; rq->rq_flags = rq_flags; + if (flags & BLK_MQ_REQ_PREEMPT) + rq->rq_flags |= RQF_PREEMPT; /* init elvpriv */ if (rq_flags & RQF_ELVPRIV) { @@ -1444,7 +1446,7 @@ struct request *blk_get_request_flags(struct request_queue *q, unsigned int op, struct request *req; WARN_ON_ONCE(op & REQ_NOWAIT); - WARN_ON_ONCE(flags & ~BLK_MQ_REQ_NOWAIT); + WARN_ON_ONCE(flags & ~(BLK_MQ_REQ_NOWAIT | BLK_MQ_REQ_PREEMPT)); if (q->mq_ops) { req = blk_mq_alloc_request(q, op, flags); |