linux-kernel - Re: [PATCH 09/11] powerpc/64s: Allow control of RFI flush via sysfs

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Message-ID: <87y3l880js.fsf@concordia.ellerman.id.au>
Date:   Tue, 09 Jan 2018 09:09:59 +1100
From:   Michael Ellerman <mpe@...erman.id.au>
To:     Thomas Gleixner <tglx@...utronix.de>
Cc:     linuxppc-dev@...abs.org, LKML <linux-kernel@...r.kernel.org>,
        Peter Zijlstra <peterz@...radead.org>, npiggin@...il.com,
        Anton Blanchard <anton@...ba.org>, mikey@...ling.org,
        oohall@...il.com, Paul Mackerras <paulus@...ba.org>,
        Greg KH <gregkh@...uxfoundation.org>
Subject: Re: [PATCH 09/11] powerpc/64s: Allow control of RFI flush via sysfs

Thomas Gleixner <tglx@...utronix.de> writes:

> On Tue, 9 Jan 2018, Michael Ellerman wrote:
>
> Sorry, I wasn't aware about your efforts and did not cc you. I've just
> queued a more generic sysfs interface for this whole mess:

No worries.

> https://lkml.kernel.org/r/20180107214913.096657732@linutronix.de
>
> It should be simple to extend for write and it would be great if all
> affected architectures could share it.

As you say this has all been a bit of a mess, and as a result we already
have people running kernels with this patch, so we don't want to remove
the 'rfi_flush' file.

But we will certainly add support on powerpc for the files you have
created, in addition to 'rfi_flush'.

cheers