linux-kernel - Re: [PATCH block-5.15] blk-cgroup: blk_cgroup_bio_start() should use irq-safe operations on blkg->iostat

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Message-Id: <163448881598.109630.15974180935956486992.b4-ty@kernel.dk>
Date:   Sun, 17 Oct 2021 10:40:18 -0600
From:   Jens Axboe <axboe@...nel.dk>
To:     Tejun Heo <tj@...nel.org>
Cc:     Jens Axboe <axboe@...nel.dk>, linux-block@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH block-5.15] blk-cgroup: blk_cgroup_bio_start() should use irq-safe operations on blkg->iostat_cpu

On Thu, 14 Oct 2021 13:20:22 -1000, Tejun Heo wrote:
> c3df5fb57fe8 ("cgroup: rstat: fix A-A deadlock on 32bit around
> u64_stats_sync") made u64_stats updates irq-safe to avoid A-A deadlocks.
> Unfortunately, the conversion missed one in blk_cgroup_bio_start(). Fix it.
> 
> 

Applied, thanks!

[1/1] blk-cgroup: blk_cgroup_bio_start() should use irq-safe operations on blkg->iostat_cpu
      commit: 5370b0f49078203acf3c064b634a09707167a864

Best regards,
-- 
Jens Axboe