1 files changed, 27 insertions, 0 deletions

diff --git a/fs/ocfs2/dcache.h b/fs/ocfs2/dcache.h
index 90072771114b..f1423c2134ee 100644
--- a/fs/ocfs2/dcache.h
+++ b/fs/ocfs2/dcache.h
@@ -28,4 +28,31 @@
 
 extern struct dentry_operations ocfs2_dentry_ops;
 
+struct ocfs2_dentry_lock {
+        unsigned int            dl_count;
+        u64                     dl_parent_blkno;
+
+        /*
+         * The ocfs2_dentry_lock keeps an inode reference until
+         * dl_lockres has been destroyed. This is usually done in
+         * ->d_iput() anyway, so there should be minimal impact.
+         */
+        struct inode            *dl_inode;
+        struct ocfs2_lock_res   dl_lockres;
+};
+
+static inline void ocfs2_dentry_lock_put(struct ocfs2_super *osb,
+                                         struct ocfs2_dentry_lock *dl)
+{
+}
+
+static inline struct dentry *ocfs2_find_local_alias(struct inode *inode,
+                                                    u64 parent_blkno,
+                                                    int skip_unhashed)
+{
+        return NULL;
+}
+
+extern spinlock_t dentry_attach_lock;
+
 #endif /* OCFS2_DCACHE_H */