On Fri, Nov 16, 2012 at 11:50:12AM -0800, David Rientjes wrote: > On Fri, 16 Nov 2012, kbuild test robot 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. > Signed-off-by: David Rientjes <rientjes@xxxxxxxxxx> > --- > mm/Kconfig | 3 +-- > 1 file changed, 1 insertion(+), 2 deletions(-) > > diff --git a/mm/Kconfig b/mm/Kconfig > --- a/mm/Kconfig > +++ b/mm/Kconfig > @@ -191,8 +191,7 @@ config SPLIT_PTLOCK_CPUS > # support for memory balloon compaction > config BALLOON_COMPACTION > bool "Allow for balloon memory compaction/migration" > - select COMPACTION > - depends on VIRTIO_BALLOON > + depends on VIRTIO_BALLOON && COMPACTION > help > Memory fragmentation introduced by ballooning might reduce > significantly the number of 2MB contiguous memory blocks that can be -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>