X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=fs%2Fdrop_caches.c;h=3e5637fc377962e1aaca5665f3e03d89366673e3;hb=d6817cdbd143f87f9d7c59a4c3194091190eeb84;hp=4e4762389bdc560d993dfb42b3db9b664396e77f;hpb=e7de369050534025b33aab1033358bf47a577e4d;p=linux-2.6

diff --git a/fs/drop_caches.c b/fs/drop_caches.c
index 4e4762389b..3e5637fc37 100644
--- a/fs/drop_caches.c
+++ b/fs/drop_caches.c
@@ -14,18 +14,26 @@ int sysctl_drop_caches;
 
 static void drop_pagecache_sb(struct super_block *sb)
 {
-	struct inode *inode;
+	struct inode *inode, *toput_inode = NULL;
 
 	spin_lock(&inode_lock);
 	list_for_each_entry(inode, &sb->s_inodes, i_sb_list) {
 		if (inode->i_state & (I_FREEING|I_WILL_FREE))
 			continue;
-		invalidate_inode_pages(inode->i_mapping);
+		if (inode->i_mapping->nrpages == 0)
+			continue;
+		__iget(inode);
+		spin_unlock(&inode_lock);
+		__invalidate_mapping_pages(inode->i_mapping, 0, -1, true);
+		iput(toput_inode);
+		toput_inode = inode;
+		spin_lock(&inode_lock);
 	}
 	spin_unlock(&inode_lock);
+	iput(toput_inode);
 }
 
-void drop_pagecache(void)
+static void drop_pagecache(void)
 {
 	struct super_block *sb;
 
@@ -45,7 +53,7 @@ restart:
 	spin_unlock(&sb_lock);
 }
 
-void drop_slab(void)
+static void drop_slab(void)
 {
 	int nr_objects;