blk-iocost: read params inside lock in sysfs apis

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Otherwise, user might get abnormal values if params is updated
concurrently.

Signed-off-by: Yu Kuai <yukuai3@huawei.com>
Acked-by: Tejun Heo <tj@kernel.org>
Link: https://lore.kernel.org/r/20230117070806.3857142-4-yukuai1@huaweicloud.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>

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Yu Kuai 2023-01-17 15:08:04 +08:00 • committed by Jens Axboe

parent 235a5a83f6

commit 35198e3230

1 changed files with 4 additions and 0 deletions

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block/blk-iocost.c

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