[PATCH] swsusp: drain high mem pages

Highmem could be in pcp list as well.

Signed-off-by: Shaohua Li<shaohua.li@intel.com>
Acked-by: Pavel Machek <pavel@ucw.cz>
Cc: "Rafael J. Wysocki" <rjw@sisk.pl>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

kernel/power/snapshot.c

@@ -123,6 +123,7 @@ int save_highmem(void)
 	int res = 0;
 
 	pr_debug("swsusp: Saving Highmem");
+	drain_local_pages();
 	for_each_zone (zone) {
 		if (is_highmem(zone))
 			res = save_highmem_zone(zone);