remove PAGE_GROUP_BY_MOBILITY

Grouping pages by mobility can be disabled at compile-time. This was
considered undesirable by a number of people. However, in the current stack of
patches, it is not a simple case of just dropping the configurable patch as it
would cause merge conflicts.  This patch backs out the configuration option.

Signed-off-by: Mel Gorman <mel@csn.ul.ie>
Acked-by: Andy Whitcroft <apw@shadowen.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 0 insertions, 9 deletions

diff --git a/include/linux/mmzone.h b/include/linux/mmzone.h
index afdec8117458..09b2c4f50e38 100644
--- a/include/linux/mmzone.h
+++ b/include/linux/mmzone.h
@@ -33,21 +33,12 @@
  */
 #define PAGE_ALLOC_COSTLY_ORDER 3
 
-#ifdef CONFIG_PAGE_GROUP_BY_MOBILITY
 #define MIGRATE_UNMOVABLE     0
 #define MIGRATE_RECLAIMABLE   1
 #define MIGRATE_MOVABLE       2
 #define MIGRATE_HIGHATOMIC    3
 #define MIGRATE_RESERVE       4
 #define MIGRATE_TYPES         5
-#else
-#define MIGRATE_UNMOVABLE     0
-#define MIGRATE_UNRECLAIMABLE 0
-#define MIGRATE_MOVABLE       0
-#define MIGRATE_HIGHATOMIC    0
-#define MIGRATE_RESERVE       0
-#define MIGRATE_TYPES         1
-#endif
 
 #define for_each_migratetype_order(order, type) \
         for (order = 0; order < MAX_ORDER; order++) \