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authorRussell King <rmk+kernel@arm.linux.org.uk>2014-04-04 03:33:49 +0400
committerRussell King <rmk+kernel@arm.linux.org.uk>2014-04-04 03:33:49 +0400
commitbce5669be3a8946952258a064ef26defeb887138 (patch)
tree117386b9909882c000f822011c5ea6fdcbab3273 /fs/fscache/object-list.c
parent95959e6a06720834fc80a210e37898341c63cb91 (diff)
parent566b60c04ab230b8cc3845f964306f99504b18df (diff)
downloadlinux-bce5669be3a8946952258a064ef26defeb887138.tar.xz
Merge branch 'devel-stable' into for-next
Diffstat (limited to 'fs/fscache/object-list.c')
-rw-r--r--fs/fscache/object-list.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/fs/fscache/object-list.c b/fs/fscache/object-list.c
index e1959efad64f..b5ebc2d7d80d 100644
--- a/fs/fscache/object-list.c
+++ b/fs/fscache/object-list.c
@@ -50,6 +50,8 @@ void fscache_objlist_add(struct fscache_object *obj)
struct fscache_object *xobj;
struct rb_node **p = &fscache_object_list.rb_node, *parent = NULL;
+ ASSERT(RB_EMPTY_NODE(&obj->objlist_link));
+
write_lock(&fscache_object_list_lock);
while (*p) {
@@ -75,6 +77,9 @@ void fscache_objlist_add(struct fscache_object *obj)
*/
void fscache_objlist_remove(struct fscache_object *obj)
{
+ if (RB_EMPTY_NODE(&obj->objlist_link))
+ return;
+
write_lock(&fscache_object_list_lock);
BUG_ON(RB_EMPTY_ROOT(&fscache_object_list));