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| author | Jens Axboe <axboe@kernel.dk> | 2017-08-08 17:51:45 -0600 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2017-08-09 13:09:28 -0600 |
| commit | f299b7c7a9dee64425e5965bd4f56dc024c1befc (patch) | |
| tree | d81520896fad3b9d3e87c19d538ec00c052d1b7c /block/blk-mq.h | |
| parent | 0609e0efc5e15195ecf8c6d2f2e890d98760e337 (diff) | |
| download | linux-f299b7c7a9dee64425e5965bd4f56dc024c1befc.tar.gz linux-f299b7c7a9dee64425e5965bd4f56dc024c1befc.tar.bz2 linux-f299b7c7a9dee64425e5965bd4f56dc024c1befc.zip | |
blk-mq: provide internal in-flight variant
We don't have to inc/dec some counter, since we can just
iterate the tags. That makes inc/dec a noop, but means we
have to iterate busy tags to get an in-flight count.
Reviewed-by: Bart Van Assche <bart.vanassche@wdc.com>
Reviewed-by: Omar Sandoval <osandov@fb.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'block/blk-mq.h')
| -rw-r--r-- | block/blk-mq.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/block/blk-mq.h b/block/blk-mq.h index 60b01c0309bc..98252b79b80b 100644 --- a/block/blk-mq.h +++ b/block/blk-mq.h @@ -133,4 +133,7 @@ static inline bool blk_mq_hw_queue_mapped(struct blk_mq_hw_ctx *hctx) return hctx->nr_ctx && hctx->tags; } +void blk_mq_in_flight(struct request_queue *q, struct hd_struct *part, + unsigned int inflight[2]); + #endif |