From: Frederic Weisbecker <frederic@kernel.org>
To: Thomas Gleixner <tglx@linutronix.de>
Cc: Chris Mason <clm@meta.com>, LKML <linux-kernel@vger.kernel.org>,
Marek Szyprowski <m.szyprowski@samsung.com>,
Marco Crivellari <marco.crivellari@suse.com>,
Waiman Long <llong@redhat.com>,
cgroups@vger.kernel.org
Subject: Re: [PATCH] genirq: Don't overwrite interrupt thread flags on setup
Date: Fri, 12 Dec 2025 12:57:22 +0100 [thread overview]
Message-ID: <aTwDIoiqJECNhIC-@pavilion.home> (raw)
In-Reply-To: <87ecp0e4cf.ffs@tglx>
Le Fri, Dec 12, 2025 at 01:01:04PM +0900, Thomas Gleixner a écrit :
> Chris reported that the recent affinity management changes result in
> overwriting the already initialized thread flags.
>
> Use set_bit() to set the affinity bit instead of assigning the bit value to
> the flags.
>
> Fixes: 801afdfbfcd9 ("genirq: Fix interrupt threads affinity vs. cpuset isolated partitions")
> Reported-by: Chris Mason <clm@meta.com>
> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
> Closes: https://lore.kernel.org/all/20251212014848.3509622-1-clm@meta.com
Whoops!
Acked-by: Frederic Weisbecker <frederic@kernel.org>
--
Frederic Weisbecker
SUSE Labs
next prev parent reply other threads:[~2025-12-12 11:57 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <CGME20251121143513eucas1p15c03a2c15aa5a0a15cc46d8f0a4e534e@eucas1p1.samsung.com>
2025-11-21 14:34 ` [PATCH 0/3 v3] genirq: Fix IRQ threads VS cpuset Frederic Weisbecker
2025-11-21 14:34 ` [PATCH 1/3 v3] genirq: Prevent from early irq thread spurious wake-ups Frederic Weisbecker
2025-11-21 19:12 ` Thomas Gleixner
2025-11-21 22:04 ` Frederic Weisbecker
2025-11-21 20:01 ` [tip: irq/core] genirq: Prevent early spurious wake-ups of interrupt threads tip-bot2 for Thomas Gleixner
2025-11-22 8:30 ` tip-bot2 for Frederic Weisbecker
2025-11-21 14:34 ` [PATCH 2/3 v3] genirq: Fix interrupt threads affinity vs. cpuset isolated partitions Frederic Weisbecker
2025-11-21 16:29 ` Waiman Long
2025-11-21 20:01 ` [tip: irq/core] " tip-bot2 for Frederic Weisbecker
2025-11-22 8:30 ` tip-bot2 for Frederic Weisbecker
2025-12-12 1:48 ` [PATCH 2/3 v3] " Chris Mason
2025-12-12 2:26 ` Thomas Gleixner
2025-12-12 4:01 ` [PATCH] genirq: Don't overwrite interrupt thread flags on setup Thomas Gleixner
2025-12-12 11:57 ` Frederic Weisbecker [this message]
2025-12-13 1:37 ` [tip: irq/urgent] " tip-bot2 for Thomas Gleixner
2025-12-18 10:07 ` [PATCH 2/3 v3] genirq: Fix interrupt threads affinity vs. cpuset isolated partitions Guenter Roeck
2025-11-21 14:35 ` [PATCH 3/3 v3] genirq: Remove cpumask availability check on kthread affinity setting Frederic Weisbecker
2025-11-21 20:01 ` [tip: irq/core] " tip-bot2 for Frederic Weisbecker
2025-11-22 8:30 ` tip-bot2 for Frederic Weisbecker
2025-11-21 20:05 ` [PATCH 0/3 v3] genirq: Fix IRQ threads VS cpuset Marek Szyprowski
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