From: K Prateek Nayak <kprateek.nayak@amd.com>
To: kiln <806144828@qq.com>, Peter Zijlstra <peterz@infradead.org>,
"Ingo Molnar" <mingo@redhat.com>,
Balbir Singh <bsingharora@gmail.com>,
Yang Yang <yang.yang29@zte.com.cn>
Cc: Vincent Guittot <vincent.guittot@linaro.org>,
<linux-kernel@vger.kernel.org>
Subject: Re: [BUG] sched/delayacct: blkio_start recorded on the wrong task when a delayed task is blocked from pick
Date: Tue, 3 Nov 2026 11:40:22 +0530 [thread overview]
Message-ID: <e9c58333-4766-46f6-956d-4220319cd847@amd.com> (raw)
In-Reply-To: <tencent_6CFB6E9B26A308DC2800D4059DF93FEC9706@qq.com>
Hello Kilin,
On 11/3/2026 11:31 AM, kiln wrote:
> This looks like the mirror image of c96f5471ce7d ("delayacct: Account
> blkio completion on the correct task"), which fixed the end side the same
> way. The obvious fix would be to pass p down, something like
> delayacct_blkio_start(p) setting p->delays->blkio_start (checking
> p->delays rather than current->delays). Happy to send a patch if that
> direction is okay.
Good catch and I think you should send a patch in that direction.
--
Thanks and Regards,
Prateek
next prev parent reply other threads:[~2026-11-03 6:10 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-11-03 6:01 kiln
2026-11-03 6:10 ` K Prateek Nayak [this message]
2026-11-03 8:21 ` Christian Loehle
2026-11-03 9:56 ` Peter Zijlstra
2026-11-03 8:28 ` [PATCH] delayacct: Record blkio start on the correct task Jie Du
2026-11-03 9:07 ` Jie Du
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