From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from psmtp.com (na3sys010amx174.postini.com [74.125.245.174]) by kanga.kvack.org (Postfix) with SMTP id 5C8A26B002B for ; Fri, 16 Nov 2012 17:03:48 -0500 (EST) Received: by mail-pa0-f41.google.com with SMTP id fa10so2336095pad.14 for ; Fri, 16 Nov 2012 14:03:47 -0800 (PST) Date: Fri, 16 Nov 2012 14:03:45 -0800 (PST) From: David Rientjes Subject: Re: [patch] mm: introduce a common interface for balloon pages mobility fix In-Reply-To: <20121116201035.GA18145@t510.redhat.com> Message-ID: References: <50a6581a.V3MmP/x4DXU9jUhJ%fengguang.wu@intel.com> <20121116201035.GA18145@t510.redhat.com> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-linux-mm@kvack.org List-ID: To: Rafael Aquini Cc: kbuild test robot , Andrew Morton , linux-mm@kvack.org, Michal Hocko 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. -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org