mm: avoid warning when COMPACTION is selected
Andrea Arcangeli [Thu, 9 Sep 2010 23:37:53 +0000 (16:37 -0700)]
COMPACTION enables MIGRATION, but MIGRATION spawns a warning if numa or
memhotplug aren't selected.  However MIGRATION doesn't depend on them.  I
guess it's just trying to be strict doing a double check on who's enabling
it, but it doesn't know that compaction also enables MIGRATION.

Signed-off-by: Andrea Arcangeli <aarcange@redhat.com>
Acked-by: Mel Gorman <mel@csn.ul.ie>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

mm/Kconfig

index f4e516e..f0fb912 100644 (file)
@@ -189,7 +189,7 @@ config COMPACTION
 config MIGRATION
        bool "Page migration"
        def_bool y
-       depends on NUMA || ARCH_ENABLE_MEMORY_HOTREMOVE
+       depends on NUMA || ARCH_ENABLE_MEMORY_HOTREMOVE || COMPACTION
        help
          Allows the migration of the physical location of pages of processes
          while the virtual addresses are not changed. This is useful in