From: Frederic Weisbecker <frederic@kernel.org>
To: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Cc: linux-kernel@vger.kernel.org, rcu@vger.kernel.org,
"Paul E. McKenney" <paulmck@kernel.org>,
Anna-Maria Behnsen <anna-maria@linutronix.de>,
Davidlohr Bueso <dave@stgolabs.net>,
Ingo Molnar <mingo@kernel.org>,
Josh Triplett <josh@joshtriplett.org>,
Thomas Gleixner <tglx@linutronix.de>
Subject: Re: [PATCH v2 1/3] hrtimer: Use __raise_softirq_irqoff() to raise the softirq.
Date: Mon, 28 Oct 2024 14:11:20 +0100 [thread overview]
Message-ID: <Zx-NeHWC0LX-75s0@localhost.localdomain> (raw)
In-Reply-To: <20241024150413.518862-2-bigeasy@linutronix.de>
Le Thu, Oct 24, 2024 at 04:55:49PM +0200, Sebastian Andrzej Siewior a écrit :
> As an optimisation use __raise_softirq_irqoff() to raise the softirq.
> This is always called from an interrupt handler so it can be reduced to
> just or set softirq flag and let softirq be invoked on return from
> interrupt.
>
> Use __raise_softirq_irqoff() to raise the softirq.
>
> Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Reviewed-by: Frederic Weisbecker <frederic@kernel.org>
next prev parent reply other threads:[~2024-10-28 13:11 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-10-24 14:55 [PATCH v2 0/3] softirq: Use a dedicated thread for timer wakeups on PREEMPT_RT Sebastian Andrzej Siewior
2024-10-24 14:55 ` [PATCH v2 1/3] hrtimer: Use __raise_softirq_irqoff() to raise the softirq Sebastian Andrzej Siewior
2024-10-28 13:11 ` Frederic Weisbecker [this message]
2024-10-24 14:55 ` [PATCH v2 2/3] timers: " Sebastian Andrzej Siewior
2024-10-28 13:13 ` Frederic Weisbecker
2024-10-24 14:55 ` [PATCH v2 3/3] softirq: Use a dedicated thread for timer wakeups on PREEMPT_RT Sebastian Andrzej Siewior
2024-10-28 14:01 ` Frederic Weisbecker
2024-10-29 13:52 ` Sebastian Andrzej Siewior
2024-10-29 21:47 ` Frederic Weisbecker
2024-10-30 10:02 ` Sebastian Andrzej Siewior
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