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| author |   John Garry <john.garry@huawei.com> | 2020-08-19 23:20:23 +0800 |
|---|---|---|
| committer |   Jens Axboe <axboe@kernel.dk> | 2020-09-03 15:20:47 -0600 |
| commit | 222a5ae03cdd12e7643f2f64689a39ed547650cb (patch) | |
| tree | 0c9e5f6ae1341138eeddb15f43112e310497f5ae /block/blk-mq.c | |
| parent | blk-mq: Pass flags for tag init/free (diff) | |
| download | linux-dev-222a5ae03cdd12e7643f2f64689a39ed547650cb.tar.xz linux-dev-222a5ae03cdd12e7643f2f64689a39ed547650cb.zip | |
blk-mq: Use pointers for blk_mq_tags bitmap tags
Introduce pointers for the blk_mq_tags regular and reserved bitmap tags,
with the goal of later being able to use a common shared tag bitmap across
all HW contexts in a set.
Signed-off-by: John Garry <john.garry@huawei.com>
Tested-by: Don Brace<don.brace@microsemi.com> #SCSI resv cmds patches used
Tested-by: Douglas Gilbert <dgilbert@interlog.com>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'block/blk-mq.c')
| -rw-r--r-- | block/blk-mq.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/block/blk-mq.c b/block/blk-mq.c index a39693dbb3c8..4982bb1d75db 100644 --- a/block/blk-mq.c +++ b/block/blk-mq.c @@ -1096,14 +1096,14 @@ static inline unsigned int queued_to_index(unsigned int queued) static bool __blk_mq_get_driver_tag(struct request *rq) { - struct sbitmap_queue *bt = &rq->mq_hctx->tags->bitmap_tags; + struct sbitmap_queue *bt = rq->mq_hctx->tags->bitmap_tags; unsigned int tag_offset = rq->mq_hctx->tags->nr_reserved_tags; int tag; blk_mq_tag_busy(rq->mq_hctx); if (blk_mq_tag_is_reserved(rq->mq_hctx->sched_tags, rq->internal_tag)) { - bt = &rq->mq_hctx->tags->breserved_tags; + bt = rq->mq_hctx->tags->breserved_tags; tag_offset = 0; } @@ -1145,7 +1145,7 @@ static int blk_mq_dispatch_wake(wait_queue_entry_t *wait, unsigned mode, struct sbitmap_queue *sbq; list_del_init(&wait->entry); - sbq = &hctx->tags->bitmap_tags; + sbq = hctx->tags->bitmap_tags; atomic_dec(&sbq->ws_active); } spin_unlock(&hctx->dispatch_wait_lock); @@ -1163,7 +1163,7 @@ static int blk_mq_dispatch_wake(wait_queue_entry_t *wait, unsigned mode, static bool blk_mq_mark_tag_wait(struct blk_mq_hw_ctx *hctx, struct request *rq) { - struct sbitmap_queue *sbq = &hctx->tags->bitmap_tags; + struct sbitmap_queue *sbq = hctx->tags->bitmap_tags; struct wait_queue_head *wq; wait_queue_entry_t *wait; bool ret; |