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Date: Wed, 2 Sep 2015 21:55:12 -0700
From: Andrew Morton <akpm@linux-foundation.org>
Subject: Re: slab-nomerge (was Re: [git pull] device mapper changes for 4.3)
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To: Christoph Lameter <cl@linux.com>
Cc: Mike Snitzer <snitzer@redhat.com>, Linus Torvalds <torvalds@linux-foundation.org>, Heinz Mauelshagen <heinzm@redhat.com>, Viresh Kumar <viresh.kumar@linaro.org>, Dave Chinner <dchinner@redhat.com>, Joe Thornber <ejt@redhat.com>, Pekka Enberg <penberg@kernel.org>, linux-mm <linux-mm@kvack.org>, "dm-devel@redhat.com" <dm-devel@redhat.com>, Mikulas Patocka <mpatocka@redhat.com>, Vivek Goyal <vgoyal@redhat.com>, Sami Tolvanen <samitolvanen@google.com>, David Rientjes <rientjes@google.com>, Joonsoo Kim <iamjoonsoo.kim@lge.com>, Alasdair G Kergon <agk@redhat.com>

On Wed, 2 Sep 2015 22:10:12 -0500 (CDT) Christoph Lameter <cl@linux.com> wrote:

> > But I'd still like some pointers/help on what makes slab merging so
> > beneficial.  I'm sure Christoph and others have justification.  But if
> > not then yes the default to slab merging probably should be revisited.
> 
> ...
>
> Check out the linux-mm archives for these dissussions.

Somewhat OT, but...  The question Mike asks should be comprehensively
answered right there in the switch-to-merging patch's changelog.

The fact that it is not answered in the appropriate place and that
we're reduced to vaguely waving at the list archives is a fail.  And a
lesson!

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