Merge branch 'linus' into sched/core

Merge reason: we will merge a dependent patch.

Signed-off-by: Ingo Molnar <mingo@elte.hu>

1 files changed, 19 insertions, 0 deletions

diff --git a/fs/ocfs2/sysfile.c b/fs/ocfs2/sysfile.c
index ab713ebdd546..40e53702948c 100644
--- a/fs/ocfs2/sysfile.c
+++ b/fs/ocfs2/sysfile.c
@@ -50,6 +50,10 @@ static inline int is_in_system_inode_array(struct ocfs2_super *osb,
                                            int type,
                                            u32 slot);
 
+#ifdef CONFIG_DEBUG_LOCK_ALLOC
+static struct lock_class_key ocfs2_sysfile_cluster_lock_key[NUM_SYSTEM_INODES];
+#endif
+
 static inline int is_global_system_inode(int type)
 {
         return type >= OCFS2_FIRST_ONLINE_SYSTEM_INODE &&
@@ -118,6 +122,21 @@ static struct inode * _ocfs2_get_system_file_inode(struct ocfs2_super *osb,
                 inode = NULL;
                 goto bail;
         }
+#ifdef CONFIG_DEBUG_LOCK_ALLOC
+        if (type == LOCAL_USER_QUOTA_SYSTEM_INODE ||
+            type == LOCAL_GROUP_QUOTA_SYSTEM_INODE ||
+            type == JOURNAL_SYSTEM_INODE) {
+                /* Ignore inode lock on these inodes as the lock does not
+                 * really belong to any process and lockdep cannot handle
+                 * that */
+                OCFS2_I(inode)->ip_inode_lockres.l_lockdep_map.key = NULL;
+        } else {
+                lockdep_init_map(&OCFS2_I(inode)->ip_inode_lockres.
+                                                                l_lockdep_map,
+                                 ocfs2_system_inodes[type].si_name,
+                                 &ocfs2_sysfile_cluster_lock_key[type], 0);
+        }
+#endif
 bail:
 
         return inode;