From: David Rientjes <rientjes@google.com>
To: Rafael Aquini <aquini@redhat.com>
Cc: kbuild test robot <fengguang.wu@intel.com>,
Andrew Morton <akpm@linux-foundation.org>,
linux-mm@kvack.org, Michal Hocko <mhocko@suse.cz>
Subject: Re: [patch] mm: introduce a common interface for balloon pages mobility fix
Date: Fri, 16 Nov 2012 14:03:45 -0800 (PST) [thread overview]
Message-ID: <alpine.DEB.2.00.1211161402550.17853@chino.kir.corp.google.com> (raw)
In-Reply-To: <20121116201035.GA18145@t510.redhat.com>
On Fri, 16 Nov 2012, Rafael Aquini wrote:
> > > tree: git://git.kernel.org/pub/scm/linux/kernel/git/mhocko/mm.git since-3.6
> > > head: 12dfb061e5fd15be23451418da01281625c0eeae
> > > commit: 86929cfa5f751de3d8be5a846535282730865d8a [365/437] mm: introduce a common interface for balloon pages mobility
> > > config: make ARCH=sh allyesconfig
> > >
> > > All warnings:
> > >
> > > warning: (BALLOON_COMPACTION && TRANSPARENT_HUGEPAGE) selects COMPACTION which has unmet direct dependencies (MMU)
> > > warning: (BALLOON_COMPACTION && TRANSPARENT_HUGEPAGE) selects COMPACTION which has unmet direct dependencies (MMU)
> > > --
> > > warning: (BALLOON_COMPACTION && TRANSPARENT_HUGEPAGE) selects COMPACTION which has unmet direct dependencies (MMU)
> > >
> >
> > mm: introduce a common interface for balloon pages mobility fix
> >
> > CONFIG_BALLOON_COMPACTION shouldn't be selecting options that may not be
> > supported, so make it depend on memory compaction rather than selecting
> > it. CONFIG_COMPACTION is enabled by default for all configs that support
> > it.
> >
>
> This is already addressed at v12 revision which is on mmtom queue already.
>
Ah, it was merged yesterday but it depends on TRANSPARENT_HUGEPAGE rather
than COMPACTION. Why? Surely thp is not the only thing that benefits
from keeping memory defragmented for high-order allocs.
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next prev parent reply other threads:[~2012-11-16 22:03 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-11-16 15:13 [memcg:since-3.6 365/437] warning: (BALLOON_COMPACTION && TRANSPARENT_HUGEPAGE) selects COMPACTION which has unmet direct dependencies (MMU) kbuild test robot
2012-11-16 19:50 ` [patch] mm: introduce a common interface for balloon pages mobility fix David Rientjes
2012-11-16 20:10 ` Rafael Aquini
2012-11-16 22:03 ` David Rientjes [this message]
2012-11-27 23:50 ` David Rientjes
2012-11-28 0:03 ` Rafael Aquini
2012-11-28 0:15 ` David Rientjes
2012-11-28 9:59 ` Michal Hocko
2012-11-28 10:57 ` Rafael Aquini
2012-11-16 20:12 ` Rafael Aquini
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