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Yu Kuai b75c7a8020 blk-mq-sched: add new parameter nr_requests in blk_mq_alloc_sched_tags() ...

[ Upstream commit 6293e336f6 ]

This helper only support to allocate the default number of requests,
add a new parameter to support specific number of requests.

Prepare to fix potential deadlock in the case nr_requests grow.

Signed-off-by: Yu Kuai <yukuai3@huawei.com>
Reviewed-by: Nilay Shroff <nilay@linux.ibm.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Stable-dep-of: b86433721f ("blk-mq: fix potential deadlock while nr_requests grown")
Signed-off-by: Sasha Levin <sashal@kernel.org>

2025-10-15 12:03:29 +02:00

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