[PATCH -next] mm/page_alloc: Mark some symbols with static keyword

[Zou Wei <zou_wei@xxxxxxxxxx>]

Fix the following sparse warnings:

mm/page_alloc.c:3040:6: warning: symbol '__drain_all_pages' was not declared. Should it be static?
mm/page_alloc.c:6349:6: warning: symbol '__zone_set_pageset_high_and_batch' was not declared. Should it be static?

Signed-off-by: Zou Wei <zou_wei@xxxxxxxxxx>
---
 mm/page_alloc.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index 63d8d8b..e7548344 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -3037,7 +3037,7 @@ static void drain_local_pages_wq(struct work_struct *work)
  * that need the guarantee that every CPU has drained can disable the
  * optimizing racy check.
  */
-void __drain_all_pages(struct zone *zone, bool force_all_cpus)
+static void __drain_all_pages(struct zone *zone, bool force_all_cpus)
 {
 	int cpu;
 
@@ -6346,7 +6346,7 @@ static void pageset_init(struct per_cpu_pageset *p)
 	pcp->batch = BOOT_PAGESET_BATCH;
 }
 
-void __zone_set_pageset_high_and_batch(struct zone *zone, unsigned long high,
+static void __zone_set_pageset_high_and_batch(struct zone *zone, unsigned long high,
 		unsigned long batch)
 {
 	struct per_cpu_pageset *p;
-- 
2.6.2