block: Correct comment for scale_cookie_change

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Default queue depth of iolatency_grp is unlimited, so we scale down
quickly(once by half) in scale_cookie_change. Remove the "subtract
1/16th" part which is not the truth and add the actual way we
scale down.

Signed-off-by: Kemeng Shi <shikemeng@huawei.com>
Link: https://lore.kernel.org/r/20221018111240.22612-3-shikemeng@huawei.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>

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Kemeng Shi 2022-10-18 19:12:39 +08:00 • committed by Jens Axboe

parent db5896e9cf

commit 6891f96898

1 changed files with 4 additions and 2 deletions

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block/blk-iolatency.c

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