linux-kernel - Re: [PATCH] driver: block: release the lo_work_lock before queue

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Message-Id: <173928330541.90490.11671067114197076767.b4-ty@kernel.dk>
Date: Tue, 11 Feb 2025 07:15:05 -0700
From: Jens Axboe <axboe@...nel.dk>
To: Dan Schatzberg <schatzberg.dan@...il.com>, linux-block@...r.kernel.org, 
 linux-kernel@...r.kernel.org, Zhaoyang Huang <huangzhaoyang@...il.com>, 
 steve.kang@...soc.com, "zhaoyang.huang" <zhaoyang.huang@...soc.com>
Subject: Re: [PATCH] driver: block: release the lo_work_lock before
 queue_work


On Fri, 07 Feb 2025 17:19:42 +0800, zhaoyang.huang wrote:
> queue_work could spin on wq->cpu_pwq->pool->lock which could lead to
> concurrent loop_process_work failed on lo_work_lock contention and
> increase the request latency. Remove this combination by moving the
> lock release ahead of queue_work.
> 
> 

Applied, thanks!

[1/1] driver: block: release the lo_work_lock before queue_work
      commit: 3bee991f2b68175c828dc3f9c26367fe1827319a

Best regards,
-- 
Jens Axboe