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From: Linus Torvalds <torvalds@linux-foundation.org>
Date: Tue, 22 Aug 2017 11:25:52 -0700
Message-ID: <CA+55aFxC0wa=TjpfVQ8-iQEzrg0pwsTNxGZCT_JSZJFTR0GKkw@mail.gmail.com>
Subject: Re: [PATCH 1/2] sched/wait: Break up long wake list walk
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Sender: owner-linux-mm@kvack.org
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To: "Liang, Kan" <kan.liang@intel.com>
Cc: Mel Gorman <mgorman@techsingularity.net>, Mel Gorman <mgorman@suse.de>, "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>, Tim Chen <tim.c.chen@linux.intel.com>, Peter Zijlstra <peterz@infradead.org>, Ingo Molnar <mingo@elte.hu>, Andi Kleen <ak@linux.intel.com>, Andrew Morton <akpm@linux-foundation.org>, Johannes Weiner <hannes@cmpxchg.org>, Jan Kara <jack@suse.cz>, linux-mm <linux-mm@kvack.org>, Linux Kernel Mailing List <linux-kernel@vger.kernel.org>

On Tue, Aug 22, 2017 at 11:19 AM, Linus Torvalds
<torvalds@linux-foundation.org> wrote:
>
> So I propose testing the attached trivial patch. It may not do
> anything at all. But the existing code is actually doing extra work
> just to be fragile, in case the scenario above can happen.

Side note: the patch compiles for me. But that is literally ALL the
testing it has gotten. I spent more time writing that email trying to
explain what my thinking was about that patch, than I spent anywhere
else on that patch.

So it may be garbage. Caveat probator.

              Linus

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