From: sashiko-bot@kernel.org
To: "Heiko Carstens" <hca@linux.ibm.com>
Cc: "Heiko Carstens" <hca@linux.ibm.com>,
linux-s390@vger.kernel.org, "Vasily Gorbik" <gor@linux.ibm.com>,
"Alexander Gordeev" <agordeev@linux.ibm.com>
Subject: Re: [PATCH v4 1/4] s390/crypto: Replace cond_resched() with msleep(1)
Date: Fri, 31 Jul 2026 17:06:11 +0000 [thread overview]
Message-ID: <20260731170611.A82901F00AC4@smtp.kernel.org> (raw)
In-Reply-To: <20260731165004.2758105-2-hca@linux.ibm.com>
> From: Peter Zijlstra <peterz@infradead.org>
>
> With [1] cond_resched() is always compiled away and becomes a no-op.
>
> The comments for all cond_resched() calls in crypto code however indicate
> that the current process should be scheduled away to avoid instant
> re-invocation of a callback. This is not what cond_resched() would do or
> did.
>
> Instead of just removing the cond_resched() calls, replace them with
> msleep() calls, as suggested by Holger Dengler. This forces the current
> task to be scheduled away (sleeps) like originally intended.
>
> Holger provided information why this intended [2]:
> "
> [ ... ]
>
> [hca@linux.ibm.com: took Peter's patch [3] and provided commit message]
>
> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
> Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Sashiko has reviewed this patch and found no issues. It looks great!
--
Sashiko AI review · https://sashiko.dev/#/patchset/20260731165004.2758105-1-hca@linux.ibm.com?part=1
next prev parent reply other threads:[~2026-07-31 17:06 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-07-31 16:50 [PATCH v4 0/4] s390: Remove or replace cond_resched() calls Heiko Carstens
2026-07-31 16:50 ` [PATCH v4 1/4] s390/crypto: Replace cond_resched() with msleep(1) Heiko Carstens
2026-07-31 17:06 ` sashiko-bot [this message]
2026-07-31 18:31 ` Holger Dengler
2026-07-31 16:50 ` [PATCH v4 2/4] KVM: s390: Remove cond_resched() calls Heiko Carstens
2026-07-31 17:05 ` sashiko-bot
2026-07-31 16:50 ` [PATCH v4 3/4] " Heiko Carstens
2026-07-31 16:53 ` sashiko-bot
2026-07-31 16:50 ` [PATCH v4 4/4] s390/cio: " Heiko Carstens
2026-07-31 16:59 ` sashiko-bot
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