Re: [tip:irq/core] genirq: Introduce generic irq migration for cpu hotunplug

From: Catalin Marinas
Date: Thu Oct 01 2015 - 10:47:19 EST


On Thu, Oct 01, 2015 at 04:24:24PM +0200, Thomas Gleixner wrote:
> On Thu, 1 Oct 2015, tip-bot for Yang Yingliang wrote:
>
> > Commit-ID: f1e0bb0ad473a32d1b7e6d285ae9f7e47710bb5e
> > Gitweb: http://git.kernel.org/tip/f1e0bb0ad473a32d1b7e6d285ae9f7e47710bb5e
> > Author: Yang Yingliang <yangyingliang@xxxxxxxxxx>
> > AuthorDate: Thu, 24 Sep 2015 17:32:13 +0800
> > Committer: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
> > CommitDate: Thu, 1 Oct 2015 14:51:15 +0200
> >
> > genirq: Introduce generic irq migration for cpu hotunplug
> >
> > ARM and ARM64 have almost identical code for migrating interrupts on
> > cpu hotunplug. Provide a generic version which can be used by both.
> >
> > The new code addresses a shortcoming in the ARM[64] variants which
> > fails to update the affinity change in some cases. The solution for
> > this is to use the core function irq_do_set_affinity() instead of open
> > coding it.
> >
> > [ tglx: Added copyright notice and license boilerplate. Rewrote
> > subject and changelog. ]
> >
> > Signed-off-by: Yang Yingliang <yangyingliang@xxxxxxxxxx>
> > Acked-by: Russell King - ARM Linux <linux@xxxxxxxxxxxxxxxx>
> > Cc: Jiang Liu <jiang.liu@xxxxxxxxxxxxxxx>
> > Cc: Marc Zyngier <marc.zyngier@xxxxxxx>
> > Cc: Mark Rutland <mark.rutland@xxxxxxx>
> > Cc: Will Deacon <will.deacon@xxxxxxx>
> > Cc: Hanjun Guo <hanjun.guo@xxxxxxxxxx>
> > Cc: <linux-arm-kernel@xxxxxxxxxxxxxxxxxxx>
> > Link: http://lkml.kernel.org/r/1443087135-17044-2-git-send-email-yangyingliang@xxxxxxxxxx
> > Signed-off-by: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
>
> Russell, Will,
>
> I applied that to a seperate branch
>
> git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git irq/for-arm
>
> You can pull that into arm[64] so you can apply the architecture
> specific part.

Thanks. I'll queue the corresponding arm64 patch for 4.4.

--
Catalin
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