mm: avoid warning when COMPACTION is selected

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 <[email protected]>
Acked-by: Mel Gorman <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>

diff --git a/mm/Kconfig b/mm/Kconfig
index f4e516e9c37cc4c62f93faf92131a632098d2ca5..f0fb9124e410c436c0f240d69f089f4935af2e92 100644 (file)
--- a/mm/Kconfig
+++ b/mm/Kconfig
@@ -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