From: Thomas Gleixner <tglx@linutronix.de>
To: Koichiro Den <koichiro.den@canonical.com>, linux-kernel@vger.kernel.org
Cc: anna-maria@linutronix.de, frederic@kernel.org, peterz@infradead.org
Subject: Re: [PATCH] hrtimer: reset .hres_active and .online at appropriate points
Date: Thu, 16 Jan 2025 10:16:29 +0100 [thread overview]
Message-ID: <878qrbazki.ffs@tglx> (raw)
In-Reply-To: <20241220134421.3809834-1-koichiro.den@canonical.com>
On Fri, Dec 20 2024 at 22:44, Koichiro Den wrote:
> Reset these fields at the appropriate points. Ideally, .hres_active
> would be reset in tick_cpu_dying() as underlying clockevent is shut down
> there. However, since these operations occur in the atomic AP section
> with interrupts disabled in any case, this patch resets .hres_active to
> 0 in hrtimers_cpu_dying() for simplicity.
It does not matter where it is reset and from a hrtimer point of view
the dying() callback is the appropriate place.
Thanks,
tglx
next prev parent reply other threads:[~2025-01-16 9:16 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-12-20 13:44 [PATCH] hrtimer: reset .hres_active and .online at appropriate points Koichiro Den
2025-01-16 9:08 ` Thomas Gleixner
2025-01-16 9:16 ` Thomas Gleixner [this message]
2025-01-16 9:24 ` Thomas Gleixner
2025-01-18 7:37 ` Koichiro Den
2025-01-16 9:50 ` [tip: timers/urgent] hrtimers: Handle CPU state correctly on hotplug tip-bot2 for Koichiro Den
2025-01-16 10:56 ` Borislav Petkov
2025-01-16 12:36 ` tip-bot2 for Koichiro Den
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