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| author | Bart Van Assche <bvanassche@acm.org> | 2024-05-09 10:01:48 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2024-08-03 08:53:22 +0200 |
| commit | b2c67e1f80deb14d37b1a4a39a783247bc5c61a3 (patch) | |
| tree | 15604e7d5fff431ec91b04fd5033e8ea855289da /block | |
| parent | ff36cc0bc63a7ec7e5f1862f20d36f5f24b290ab (diff) | |
| download | linux-b2c67e1f80deb14d37b1a4a39a783247bc5c61a3.tar.gz linux-b2c67e1f80deb14d37b1a4a39a783247bc5c61a3.tar.bz2 linux-b2c67e1f80deb14d37b1a4a39a783247bc5c61a3.zip | |
block: Call .limit_depth() after .hctx has been set
[ Upstream commit 6259151c04d4e0085e00d2dcb471ebdd1778e72e ]
Call .limit_depth() after data->hctx has been set such that data->hctx can
be used in .limit_depth() implementations.
Cc: Christoph Hellwig <hch@lst.de>
Cc: Damien Le Moal <dlemoal@kernel.org>
Cc: Zhiguo Niu <zhiguo.niu@unisoc.com>
Fixes: 07757588e507 ("block/mq-deadline: Reserve 25% of scheduler tags for synchronous requests")
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Tested-by: Zhiguo Niu <zhiguo.niu@unisoc.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/r/20240509170149.7639-2-bvanassche@acm.org
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'block')
| -rw-r--r-- | block/blk-mq.c | 12 |
1 files changed, 6 insertions, 6 deletions
diff --git a/block/blk-mq.c b/block/blk-mq.c index 4c91889affa7..7cc315527a44 100644 --- a/block/blk-mq.c +++ b/block/blk-mq.c @@ -447,6 +447,10 @@ static struct request *__blk_mq_alloc_requests(struct blk_mq_alloc_data *data) if (data->cmd_flags & REQ_NOWAIT) data->flags |= BLK_MQ_REQ_NOWAIT; +retry: + data->ctx = blk_mq_get_ctx(q); + data->hctx = blk_mq_map_queue(q, data->cmd_flags, data->ctx); + if (q->elevator) { /* * All requests use scheduler tags when an I/O scheduler is @@ -468,13 +472,9 @@ static struct request *__blk_mq_alloc_requests(struct blk_mq_alloc_data *data) if (ops->limit_depth) ops->limit_depth(data->cmd_flags, data); } - } - -retry: - data->ctx = blk_mq_get_ctx(q); - data->hctx = blk_mq_map_queue(q, data->cmd_flags, data->ctx); - if (!(data->rq_flags & RQF_SCHED_TAGS)) + } else { blk_mq_tag_busy(data->hctx); + } if (data->flags & BLK_MQ_REQ_RESERVED) data->rq_flags |= RQF_RESV; |