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Message-Id: <20250814033522.770575-17-yukuai1@huaweicloud.com> Date: Thu, 14 Aug 2025 11:35:22 +0800 From: Yu Kuai <yukuai1@...weicloud.com> To: axboe@...nel.dk, yukuai3@...wei.com, bvanassche@....org, nilay@...ux.ibm.com, hare@...e.de, ming.lei@...hat.com Cc: linux-block@...r.kernel.org, linux-kernel@...r.kernel.org, yukuai1@...weicloud.com, yi.zhang@...wei.com, yangerkun@...wei.com, johnny.chenyi@...wei.com Subject: [PATCH 16/16] blk-mq: add documentation for new queue attribute async_dpeth From: Yu Kuai <yukuai3@...wei.com> Signed-off-by: Yu Kuai <yukuai3@...wei.com> --- Documentation/ABI/stable/sysfs-block | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/Documentation/ABI/stable/sysfs-block b/Documentation/ABI/stable/sysfs-block index 0ed10aeff86b..09b9b3db9a1f 100644 --- a/Documentation/ABI/stable/sysfs-block +++ b/Documentation/ABI/stable/sysfs-block @@ -609,6 +609,16 @@ Description: enabled, and whether tags are shared. +What: /sys/block/<disk>/queue/async_depth +Date: August 2025 +Contact: linux-block@...r.kernel.org +Description: + [RW] This controls how many async requests may be allocated in the + block layer. If elevator is none, then this value is nr_requests. + By default, this value is 75% of nr_requests for bfq and kyber, + abd nr_requests for mq-deadline. + + What: /sys/block/<disk>/queue/nr_zones Date: November 2018 Contact: Damien Le Moal <damien.lemoal@....com> -- 2.39.2
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