[PATCH 12/12] vmstat: include compaction.h when CONFIG_COMPACTION

[Namhyung Kim]

This removes following warning from sparse:

 mm/vmstat.c:466:5: warning: symbol 'fragmentation_index' was not declared. Should it be static?

Signed-off-by: Namhyung Kim <namhyung@xxxxxxxxx>
---
 mm/vmstat.c |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)

diff --git a/mm/vmstat.c b/mm/vmstat.c
index 355a9e6..30054ea 100644
--- a/mm/vmstat.c
+++ b/mm/vmstat.c
@@ -394,6 +394,8 @@ void zone_statistics(struct zone *preferred_zone, struct zone *z)
 #endif
 
 #ifdef CONFIG_COMPACTION
+#include <linux/compaction.h>
+
 struct contig_page_info {
 	unsigned long free_pages;
 	unsigned long free_blocks_total;
-- 
1.7.2.2

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