[PATCH] mm/buddy: make skip_free_areas_node static

[Gavin Shan <shangw@linux.vnet.ibm.com>]

Currently, function skip_free_areas_node() seems to be used only
by page allocator, so make it into static one.

Signed-off-by: Gavin Shan <shangw@linux.vnet.ibm.com>
---
 include/linux/mm.h |    1 -
 mm/page_alloc.c    |    2 +-
 2 files changed, 1 insertion(+), 2 deletions(-)

diff --git a/include/linux/mm.h b/include/linux/mm.h
index b36d08c..f660ed7 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -871,7 +871,6 @@ extern void pagefault_out_of_memory(void);
 #define SHOW_MEM_FILTER_NODES	(0x0001u)	/* filter disallowed nodes */
 
 extern void show_free_areas(unsigned int flags);
-extern bool skip_free_areas_node(unsigned int flags, int nid);
 
 int shmem_zero_setup(struct vm_area_struct *);
 
diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index 7892f84..3d8d9e7 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -2738,7 +2738,7 @@ void si_meminfo_node(struct sysinfo *val, int nid)
  * Determine whether the node should be displayed or not, depending on whether
  * SHOW_MEM_FILTER_NODES was passed to show_free_areas().
  */
-bool skip_free_areas_node(unsigned int flags, int nid)
+static bool skip_free_areas_node(unsigned int flags, int nid)
 {
 	bool ret = false;
 	unsigned int cpuset_mems_cookie;
-- 
1.7.9.5

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