linux-kernel - Re: [RFC PATCH] sched: Remove set_task

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Date:   Tue, 3 Jan 2017 18:13:58 +0000
From:   Mark Rutland <mark.rutland@....com>
To:     Davidlohr Bueso <dave@...olabs.net>
Cc:     mingo@...nel.org, peterz@...radead.org,
        torvalds@...ux-foundation.org, catalin.marinas@....com,
        linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        Davidlohr Bueso <dbueso@...e.de>
Subject: Re: [RFC PATCH] sched: Remove set_task_state()

On Tue, Jan 03, 2017 at 10:06:58AM -0800, Davidlohr Bueso wrote:
> On Tue, 03 Jan 2017, Mark Rutland wrote:
> 
> >Does the below help?
> 
> It does, yes. Performance is pretty much the same with either function
> without sysreg.

Great!

> With arm no longer in the picture, I'll send up another patchset with
> this change as well as Peter's cleanup remarks.

I intend to send a cleaned up version of the arm64 patch to Catalin in a
moment; the read_sysreg() issue is a regression introduced in v4.10-rc1,
so we should be able to get it in as a fix.

Thanks,
Mark.