linux-kernel - Re: [PATCH] blk-mq: fix stale tag depth for shared sched tags in blk_mq_update_nr

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <CAFj5m9+gw4LpcZmKWntih=zZC0Tuo8jYqE_Z9bYcFM8apPfbBw@mail.gmail.com>
Date: Wed, 15 Oct 2025 12:42:17 +0800
From: Ming Lei <ming.lei@...hat.com>
To: Yu Kuai <yukuai3@...wei.com>
Cc: axboe@...nel.dk, clm@...a.com, nilay@...ux.ibm.com, 
	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: Re: [PATCH] blk-mq: fix stale tag depth for shared sched tags in blk_mq_update_nr_requests()

On Wed, Oct 15, 2025 at 9:56 AM Yu Kuai <yukuai3@...wei.com> wrote:
>
> Commit 7f2799c546db ("blk-mq: cleanup shared tags case in
> blk_mq_update_nr_requests()") moves blk_mq_tag_update_sched_shared_tags()
> before q->nr_requests is updated, however, it's still using the old
> q->nr_requests to resize tag depth.
>
> Fix this problem by passing in expected new tag depth.
>
> Fixes: 7f2799c546db ("blk-mq: cleanup shared tags case in blk_mq_update_nr_requests()")
> Signed-off-by: Yu Kuai <yukuai3@...wei.com>

Reviewed-by: Ming Lei <ming.lei@...hat.com>