From: Peter Zijlstra <peterz@infradead.org>
To: Xi Wang <xii@google.com>
Cc: Ingo Molnar <mingo@redhat.com>,
Thomas Gleixner <tglx@linutronix.de>,
Juri Lelli <juri.lelli@redhat.com>,
Vincent Guittot <vincent.guittot@linaro.org>,
Dietmar Eggemann <dietmar.eggemann@arm.com>,
Steven Rostedt <rostedt@goodmis.org>,
Josh Don <joshdon@google.com>,
linux-kernel@vger.kernel.org, Paul Turner <pjt@google.com>,
Paul McKenney <paulmck@kernel.org>
Subject: Re: [PATCH v2 1/1] sched: watchdog: Touch kernel watchdog with sched count
Date: Wed, 21 Oct 2020 13:11:56 +0200 [thread overview]
Message-ID: <20201021111156.GX2651@hirez.programming.kicks-ass.net> (raw)
In-Reply-To: <20201021102420.GW2651@hirez.programming.kicks-ass.net>
On Wed, Oct 21, 2020 at 12:24:20PM +0200, Peter Zijlstra wrote:
> +void resched_current_from_IRQ(void)
> +{
> + struct pt_regs *regs = get_irq_regs();
> +
> + WARN_ON_ONCE(!in_irq());
> + WARN_ON_ONCE(user_mode(regs) || IS_ENABLED(CONFIG_PREEMPTION));
! that, obviously :/
> +
> + set_tsk_need_resched(tsk);
> + set_preempt_need_resched();
> +}
next prev parent reply other threads:[~2020-10-21 11:12 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-10-20 20:57 [PATCH v2 0/1] Touch kernel watchdog with sched count Xi Wang
2020-10-20 20:57 ` [PATCH v2 1/1] sched: watchdog: " Xi Wang
2020-10-21 9:59 ` Peter Zijlstra
2020-10-21 10:12 ` Peter Zijlstra
2020-10-21 10:24 ` Peter Zijlstra
2020-10-21 11:11 ` Peter Zijlstra [this message]
2020-10-21 23:48 ` Xi Wang
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