vmscan: change type of vm_total_pages to unsigned long
This variable is calculated from nr_free_pagecache_pages so
change its type to unsigned long.
Signed-off-by: Zhang Yanfei <zhangyanfei@cn.fujitsu.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/include/linux/swap.h b/include/linux/swap.h
index 8a15f38..2818a12 100644
--- a/include/linux/swap.h
+++ b/include/linux/swap.h
@@ -275,7 +275,7 @@
extern unsigned long shrink_all_memory(unsigned long nr_pages);
extern int vm_swappiness;
extern int remove_mapping(struct address_space *mapping, struct page *page);
-extern long vm_total_pages;
+extern unsigned long vm_total_pages;
#ifdef CONFIG_NUMA
extern int zone_reclaim_mode;
diff --git a/mm/vmscan.c b/mm/vmscan.c
index 606d0bb..88c5fed 100644
--- a/mm/vmscan.c
+++ b/mm/vmscan.c
@@ -128,7 +128,7 @@
* From 0 .. 100. Higher means more swappy.
*/
int vm_swappiness = 60;
-long vm_total_pages; /* The total number of pages which the VM controls */
+unsigned long vm_total_pages; /* The total number of pages which the VM controls */
static LIST_HEAD(shrinker_list);
static DECLARE_RWSEM(shrinker_rwsem);