From: Russell King - ARM Linux <linux@arm.linux.org.uk>
To: Yang Yingliang <yangyingliang@huawei.com>
Cc: linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org,
Jiang Liu <jiang.liu@linux.intel.com>,
Thomas Gleixner <tglx@linutronix.de>,
Marc Zyngier <marc.zyngier@arm.com>,
Mark Rutland <mark.rutland@arm.com>,
Will Deacon <will.deacon@arm.com>,
Hanjun Guo <hanjun.guo@linaro.org>
Subject: Re: [RFC PATCH v6 3/3] arm: fix a migrating irq bug when hotplug cpu
Date: Tue, 13 Oct 2015 20:28:24 +0100 [thread overview]
Message-ID: <20151013192824.GL32532@n2100.arm.linux.org.uk> (raw)
In-Reply-To: <1443087135-17044-4-git-send-email-yangyingliang@huawei.com>
On Thu, Sep 24, 2015 at 05:32:15PM +0800, Yang Yingliang wrote:
> When cpu is disabled, all irqs will be migratged to another cpu.
> In some cases, a new affinity is different, the old affinity need
> to be updated and if irq_set_affinity's return value is IRQ_SET_MASK_OK_DONE,
> the old affinity can not be updated. Fix it by using irq_do_set_affinity.
>
> And migrating interrupts is a core code matter, so use the generic
> function irq_migrate_all_off_this_cpu() to migrate interrupts in
> kernel/irq/migration.c.
Please can you put this patch in the patch system so I don't forget it
(it's taken tglx prompting and quite a long time to find this in my
mailbox already.)
See http:/www.arm.linux.org.uk/developer/patches/
Thanks.
--
FTTC broadband for 0.8mile line: currently at 9.6Mbps down 400kbps up
according to speedtest.net.
next prev parent reply other threads:[~2015-10-13 19:28 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-09-24 9:32 [RFC PATCH v6 0/3] arm/arm64: " Yang Yingliang
2015-09-24 9:32 ` [RFC PATCH v6 1/3] genirq: introduce CONFIG_GENERIC_IRQ_MIGRATION and kernel/irq/cpuhotplug.c Yang Yingliang
2015-10-01 14:18 ` [tip:irq/core] genirq: Introduce generic irq migration for cpu hotunplug tip-bot for Yang Yingliang
2015-10-01 14:24 ` Thomas Gleixner
2015-10-01 14:47 ` Catalin Marinas
2015-09-24 9:32 ` [RFC PATCH v6 2/3] arm64: fix a migrating irq bug when hotplug cpu Yang Yingliang
2015-10-09 16:55 ` Catalin Marinas
2015-09-24 9:32 ` [RFC PATCH v6 3/3] arm: " Yang Yingliang
2015-10-13 19:28 ` Russell King - ARM Linux [this message]
2015-10-21 11:47 ` Geert Uytterhoeven
2015-10-21 20:29 ` Russell King - ARM Linux
2015-10-22 9:26 ` Russell King - ARM Linux
2015-10-22 9:46 ` Geert Uytterhoeven
2015-10-22 10:56 ` Yang Yingliang
2015-10-22 11:13 ` Russell King - ARM Linux
2015-10-22 12:43 ` Thomas Gleixner
2015-10-22 16:34 ` Catalin Marinas
2015-12-15 6:59 ` Yang Yingliang
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