vmstat: include compaction.h when CONFIG_COMPACTION
This removes following warning from sparse:
mm/vmstat.c:466:5: warning: symbol 'fragmentation_index' was not declared. Should it be static?
[akpm@linux-foundation.org: move the include to top-of-file]
Signed-off-by: Namhyung Kim <namhyung@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/mm/vmstat.c b/mm/vmstat.c
index baa4ab3..cd2e42b 100644
--- a/mm/vmstat.c
+++ b/mm/vmstat.c
@@ -18,6 +18,7 @@
#include <linux/sched.h>
#include <linux/math64.h>
#include <linux/writeback.h>
+#include <linux/compaction.h>
#ifdef CONFIG_VM_EVENT_COUNTERS
DEFINE_PER_CPU(struct vm_event_state, vm_event_states) = {{0}};
@@ -395,6 +396,7 @@
#endif
#ifdef CONFIG_COMPACTION
+
struct contig_page_info {
unsigned long free_pages;
unsigned long free_blocks_total;