mm: compaction: make compact_zone_order() static

There's no compact_zone_order() user outside file scope, so make it static.

Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Acked-by: David Rientjes <rientjes@google.com>
Signed-off-by: Andrew Morton <>

diff --git a/include/linux/compaction.h b/include/linux/compaction.h
index cc9f7a4286490a3bae2d47db3fe74d2dabfd4aac..bb2bbdbe546495e1f0ab94e87b58578bc5c0c53f 100644 (file)
--- a/include/linux/compaction.h
+++ b/include/linux/compaction.h
@@ -24,8 +24,6 @@ extern unsigned long try_to_compact_pages(struct zonelist *zonelist,
                        int order, gfp_t gfp_mask, nodemask_t *mask,
                        bool sync);
 extern unsigned long compaction_suitable(struct zone *zone, int order);
-extern unsigned long compact_zone_order(struct zone *zone, int order,
-                                       gfp_t gfp_mask, bool sync);
 
 /* Do not skip compaction more than 64 times */
 #define COMPACT_MAX_DEFER_SHIFT 6
@@ -69,12 +67,6 @@ static inline unsigned long compaction_suitable(struct zone *zone, int order)
        return COMPACT_SKIPPED;
 }
 
-static inline unsigned long compact_zone_order(struct zone *zone, int order,
-                                              gfp_t gfp_mask, bool sync)
-{
-       return COMPACT_CONTINUE;
-}
-
 static inline void defer_compaction(struct zone *zone)
 {
 }

diff --git a/mm/compaction.c b/mm/compaction.c
index 167c8800da60f1abb55dd631175140385c002e8f..97254e48d9ca943f48667335f8f0fba0e02063a8 100644 (file)
--- a/mm/compaction.c
+++ b/mm/compaction.c
@@ -587,7 +587,7 @@ out:
        return ret;
 }
 
-unsigned long compact_zone_order(struct zone *zone,
+static unsigned long compact_zone_order(struct zone *zone,
                                 int order, gfp_t gfp_mask,
                                 bool sync)
 {