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From: Julien Grall <julien@xen.org>
To: Luca Fancellu <luca.fancellu@arm.com>,
	sstabellini@kernel.org, jgross@suse.com, jgrall@amazon.com
Cc: boris.ostrovsky@oracle.com, tglx@linutronix.de,
	wei.liu@kernel.org, jbeulich@suse.com, yyankovskyi@gmail.com,
	xen-devel@lists.xenproject.org, linux-kernel@vger.kernel.org,
	stable@vger.kernel.org, bertrand.marquis@arm.com
Subject: Re: [PATCH] xen/evtchn: Change irq_info lock to raw_spinlock_t
Date: Tue, 6 Apr 2021 14:46:31 +0100	[thread overview]
Message-ID: <74349f41-ba4e-7486-5467-fb8fa3c96e50@xen.org> (raw)
In-Reply-To: <20210406105105.10141-1-luca.fancellu@arm.com>

Hi Luca,

On 06/04/2021 11:51, Luca Fancellu wrote:
> Unmask operation must be called with interrupt disabled,
> on preempt_rt spin_lock_irqsave/spin_unlock_irqrestore
> don't disable/enable interrupts, so use raw_* implementation
> and change lock variable in struct irq_info from spinlock_t
> to raw_spinlock_t
> Cc: stable@vger.kernel.org
> Fixes: 25da4618af24 ("xen/events: don't unmask an event channel
> when an eoi is pending")
> Signed-off-by: Luca Fancellu <luca.fancellu@arm.com>

Reviewed-by: Julien Grall <jgrall@amazon.com>


Julien Grall

  reply	other threads:[~2021-04-06 13:46 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-04-06 10:51 [PATCH] xen/evtchn: Change irq_info lock to raw_spinlock_t Luca Fancellu
2021-04-06 13:46 ` Julien Grall [this message]
2021-04-07 13:00 ` Wei Liu
2021-04-07 21:43 ` Boris Ostrovsky

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