blk-mq: fix stale tag depth for shared sched tags in blk_mq_update_nr_requests()

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[ Upstream commit dc96cefef0 ]

Commit 7f2799c546 ("blk-mq: cleanup shared tags case in
blk_mq_update_nr_requests()") moves blk_mq_tag_update_sched_shared_tags()
before q->nr_requests is updated, however, it's still using the old
q->nr_requests to resize tag depth.

Fix this problem by passing in expected new tag depth.

Fixes: 7f2799c546 ("blk-mq: cleanup shared tags case in blk_mq_update_nr_requests()")
Signed-off-by: Yu Kuai <yukuai3@huawei.com>
Reviewed-by: Ming Lei <ming.lei@redhat.com>
Reviewed-by: Nilay Shroff <nilay@linux.ibm.com>
Reported-by: Chris Mason <clm@meta.com>
Link: https://lore.kernel.org/linux-block/20251014130507.4187235-2-clm@meta.com/
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Sasha Levin <sashal@kernel.org>

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This commit is contained in:

Yu Kuai 2025-10-15 09:48:27 +08:00 • committed by Greg Kroah-Hartman

parent 8503ac1a62

commit 4f487c64b7

4 changed files with 7 additions and 5 deletions

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2

block/blk-mq-sched.c

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5

block/blk-mq-tag.c

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2

block/blk-mq.c

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block/blk-mq.h

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