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Subject[PATCH 01/25] mm, compaction: Shrink compact_control
Date
The isolate and migrate scanners should never isolate more than a pageblock
of pages so unsigned int is sufficient saving 8 bytes on a 64-bit build.

Signed-off-by: Mel Gorman <mgorman@techsingularity.net>
Acked-by: Vlastimil Babka <vbabka@suse.cz>
---
mm/internal.h | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/mm/internal.h b/mm/internal.h
index f4a7bb02decf..5ddf5d3771a0 100644
--- a/mm/internal.h
+++ b/mm/internal.h
@@ -184,8 +184,8 @@ struct compact_control {
struct list_head freepages; /* List of free pages to migrate to */
struct list_head migratepages; /* List of pages being migrated */
struct zone *zone;
- unsigned long nr_freepages; /* Number of isolated free pages */
- unsigned long nr_migratepages; /* Number of pages to migrate */
+ unsigned int nr_freepages; /* Number of isolated free pages */
+ unsigned int nr_migratepages; /* Number of pages to migrate */
unsigned long total_migrate_scanned;
unsigned long total_free_scanned;
unsigned long free_pfn; /* isolate_freepages search base */
--
2.16.4
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