[PATCH 07/10] mm: zone_reclaim: compaction: export compact_zone_order()

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Needed by zone_reclaim_mode compaction-awareness.

Signed-off-by: Andrea Arcangeli <aarcange@xxxxxxxxxx>
---
 include/linux/compaction.h | 10 ++++++++++
 mm/compaction.c            |  2 +-
 2 files changed, 11 insertions(+), 1 deletion(-)

diff --git a/include/linux/compaction.h b/include/linux/compaction.h
index fc3f266..e953acb 100644
--- a/include/linux/compaction.h
+++ b/include/linux/compaction.h
@@ -23,6 +23,9 @@ extern int fragmentation_index(struct zone *zone, unsigned int order);
 extern unsigned long try_to_compact_pages(struct zonelist *zonelist,
 			int order, gfp_t gfp_mask, nodemask_t *mask,
 			bool sync, bool *contended);
+extern unsigned long compact_zone_order(struct zone *zone,
+					int order, gfp_t gfp_mask,
+					bool sync, bool *contended);
 extern void compact_pgdat(pg_data_t *pgdat, int order);
 extern unsigned long compaction_suitable(struct zone *zone, int order);
 
@@ -79,6 +82,13 @@ static inline unsigned long try_to_compact_pages(struct zonelist *zonelist,
 	return COMPACT_CONTINUE;
 }
 
+static inline unsigned long compact_zone_order(struct zone *zone,
+					       int order, gfp_t gfp_mask,
+					       bool sync, bool *contended)
+{
+	return COMPACT_CONTINUE;
+}
+
 static inline void compact_pgdat(pg_data_t *pgdat, int order)
 {
 }
diff --git a/mm/compaction.c b/mm/compaction.c
index afaf692..a1154c8 100644
--- a/mm/compaction.c
+++ b/mm/compaction.c
@@ -1008,7 +1008,7 @@ out:
 	return ret;
 }
 
-static unsigned long compact_zone_order(struct zone *zone,
+unsigned long compact_zone_order(struct zone *zone,
 				 int order, gfp_t gfp_mask,
 				 bool sync, bool *contended)
 {

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