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Date: Thu, 1 Mar 2018 15:27:37 -0800
From: Andrew Morton <akpm@linux-foundation.org>
To: David Rientjes <rientjes@google.com>
Cc: Vlastimil Babka <vbabka@suse.cz>,
        Mel Gorman <mgorman@techsingularity.net>,
        Joonsoo Kim <iamjoonsoo.kim@lge.com>, linux-kernel@vger.kernel.org,
        linux-mm@kvack.org
Subject: Re: [patch] mm, compaction: drain pcps for zone when kcompactd
 fails
Message-Id: <20180301152737.62b78dcb129339a3261a9820@linux-foundation.org>
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References: <alpine.DEB.2.20.1803010340100.88270@chino.kir.corp.google.com>
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On Thu, 1 Mar 2018 03:42:04 -0800 (PST) David Rientjes <rientjes@google.com> wrote:

> It's possible for buddy pages to become stranded on pcps that, if drained,
> could be merged with other buddy pages on the zone's free area to form
> large order pages, including up to MAX_ORDER.

I grabbed this as-is.  Perhaps you could send along a new changelog so
that others won't be asking the same questions as Vlastimil?

The patch has no reviews or acks at this time...