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blk-mq: Embed counters into struct mq_inflight

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Store inflight counters immediately in struct mq_inflight.
That's type-safer and removes extra indirection.

Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Pavel Begunkov 2019-09-30 21:55:34 +03:00 committed by Jens Axboe
parent bb4e6b1491
commit a2e80f6f04
1 changed files with 6 additions and 7 deletions
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13
block/blk-mq.c
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@ -93,7 +93,7 @@ static void blk_mq_hctx_clear_pending(struct blk_mq_hw_ctx *hctx,
struct mq_inflight {
struct hd_struct *part;
unsigned int *inflight;
unsigned int inflight[2];
};
static bool blk_mq_check_inflight(struct blk_mq_hw_ctx *hctx,
@ -110,22 +110,21 @@ static bool blk_mq_check_inflight(struct blk_mq_hw_ctx *hctx,
unsigned int blk_mq_in_flight(struct request_queue *q, struct hd_struct *part)
{
unsigned inflight[2];
struct mq_inflight mi = { .part = part, .inflight = inflight, };
struct mq_inflight mi = { .part = part };
inflight[0] = inflight[1] = 0;
blk_mq_queue_tag_busy_iter(q, blk_mq_check_inflight, &mi);
return inflight[0] + inflight[1];
return mi.inflight[0] + mi.inflight[1];
}
void blk_mq_in_flight_rw(struct request_queue *q, struct hd_struct *part,
unsigned int inflight[2])
{
struct mq_inflight mi = { .part = part, .inflight = inflight, };
struct mq_inflight mi = { .part = part };
inflight[0] = inflight[1] = 0;
blk_mq_queue_tag_busy_iter(q, blk_mq_check_inflight, &mi);
inflight[0] = mi.inflight[0];
inflight[1] = mi.inflight[1];
}
void blk_freeze_queue_start(struct request_queue *q)