From: Kayra Cizmeci <kayracizmeci@gmail.com>
To: albin_yang@163.com
Cc: peterz@infradead.org, kprateek.nayak@amd.com,
albinwyang@tencent.com, bsegall@google.com, chen.yu@linux.dev,
dietmar.eggemann@arm.com, jstultz@google.com,
juri.lelli@redhat.com, linux-kernel@vger.kernel.org,
mgorman@suse.de, mingo@redhat.com, rostedt@goodmis.org,
vincent.guittot@linaro.org, vschneid@redhat.com
Subject: Re: [PATCH] sched/stats: Fix run_delay over-count for proxy-migrated blocked donors
Date: Sun, 1 Nov 2026 18:19:17 +0300 [thread overview]
Message-ID: <audUyrA8QYYHKYPz@scheduler.schedules> (raw)
In-Reply-To: <20261101143101.353033-1-albin_yang@163.com>
On Sun, Nov 01, 2026 at 10:31:01PM +0800, albin_yang@163.com wrote:
> On Wed, Oct 28, 2026 at 09:10:20AM +0530, K Prateek Nayak wrote:
> > Yup! on_cpu / task_current() gets dealt at sched_info_switch()
> > which will enqueue the signal if the task is preempted.
>
> Prateek, Kayra, Peter -- thanks for the reviews and suggestions.
>
> I tested the full diff below (comments stripped for brevity).
IDK if you added the comment Peter asked for, if you didn't please
add it in the final patch :-).
> One ask, about the split rather than the code: keep the DELAY_DEQUEUE
> fix as its own patch on se.sched_delayed. p->is_blocked arrived in
> 4c2a20413d7f and first appears in v7.2-rc1, while that over-count goes
> back to v6.12 (152e11f6df29) -- folded in, it cannot be built or
> backported for v6.12.y..v7.1.y. It already exists as v4, already
> reviewed and tested:
>
> https://lore.kernel.org/all/20261024042753.2276779-1-albin_yang@163.com/
>
> Happy to be overruled.
It's up to Peter. Tho, makes sense to me if the other issue exists on older
versions.
Thanks,
Kayra
next prev parent reply other threads:[~2026-11-01 15:19 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-10-25 13:07 [PATCH] sched/stats: Fix run_delay over-count for proxy-migrated blocked donors albin_yang
2026-10-25 19:28 ` Kayra Cizmeci
2026-10-26 13:53 ` albin_yang
2026-10-26 14:48 ` Kayra Cizmeci
2026-10-26 5:46 ` K Prateek Nayak
2026-10-26 13:38 ` albin_yang
2026-10-27 4:11 ` K Prateek Nayak
2026-10-27 6:11 ` Kayra Cizmeci
2026-10-27 6:24 ` K Prateek Nayak
2026-10-27 6:52 ` Kayra Cizmeci
2026-10-27 9:45 ` K Prateek Nayak
2026-10-27 9:53 ` Kayra Cizmeci
2026-10-27 9:58 ` K Prateek Nayak
2026-10-27 12:09 ` Peter Zijlstra
2026-10-27 12:13 ` Kayra Cizmeci
2026-10-28 3:40 ` K Prateek Nayak
2026-10-28 9:22 ` Peter Zijlstra
2026-11-01 14:31 ` albin_yang
2026-11-01 15:19 ` Kayra Cizmeci [this message]
2026-11-02 13:15 ` albin_yang
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