From f299b7c7a9dee64425e5965bd4f56dc024c1befc Mon Sep 17 00:00:00 2001 From: Jens Axboe Date: Tue, 8 Aug 2017 17:51:45 -0600 Subject: 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 Reviewed-by: Omar Sandoval Signed-off-by: Jens Axboe --- block/blk-mq.h | 3 +++ 1 file changed, 3 insertions(+) (limited to 'block/blk-mq.h') 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 -- cgit