mm/mempolicy: fix a race between offset_il_node and mpol_rebind_task

[linux-2.6-microblaze.git] / fs / drop_caches.c

diff --git a/fs/drop_caches.c b/fs/drop_caches.c
index f00fcc4..e619c31 100644 (file)
--- a/fs/drop_caches.c
+++ b/fs/drop_caches.c
@@ -3,6 +3,7 @@
  * Implement the manual drop-all-pagecache function
  */
 
+#include <linux/pagemap.h>
 #include <linux/kernel.h>
 #include <linux/mm.h>
 #include <linux/fs.h>
@@ -27,7 +28,7 @@ static void drop_pagecache_sb(struct super_block *sb, void *unused)
                 * we need to reschedule to avoid softlockups.
                 */
                if ((inode->i_state & (I_FREEING|I_WILL_FREE|I_NEW)) ||
-                   (inode->i_mapping->nrpages == 0 && !need_resched())) {
+                   (mapping_empty(inode->i_mapping) && !need_resched())) {
                        spin_unlock(&inode->i_lock);
                        continue;
                }