1 files changed, 14 insertions, 6 deletions

diff --git a/fs/ocfs2/dcache.c b/fs/ocfs2/dcache.c
index 895532ac4d98..6d80ecc7834f 100644
--- a/fs/ocfs2/dcache.c
+++ b/fs/ocfs2/dcache.c
@@ -52,9 +52,15 @@ void ocfs2_dentry_attach_gen(struct dentry *dentry)
 static int ocfs2_dentry_revalidate(struct dentry *dentry,
                                    struct nameidata *nd)
 {
-        struct inode *inode = dentry->d_inode;
+        struct inode *inode;
         int ret = 0;    /* if all else fails, just return false */
-        struct ocfs2_super *osb = OCFS2_SB(dentry->d_sb);
+        struct ocfs2_super *osb;
+
+        if (nd->flags & LOOKUP_RCU)
+                return -ECHILD;
+
+        inode = dentry->d_inode;
+        osb = OCFS2_SB(dentry->d_sb);
 
         mlog_entry("(0x%p, '%.*s')\n", dentry,
                    dentry->d_name.len, dentry->d_name.name);
@@ -169,23 +175,25 @@ struct dentry *ocfs2_find_local_alias(struct inode *inode,
         struct list_head *p;
         struct dentry *dentry = NULL;
 
-        spin_lock(&dcache_lock);
-
+        spin_lock(&inode->i_lock);
         list_for_each(p, &inode->i_dentry) {
                 dentry = list_entry(p, struct dentry, d_alias);
 
+                spin_lock(&dentry->d_lock);
                 if (ocfs2_match_dentry(dentry, parent_blkno, skip_unhashed)) {
                         mlog(0, "dentry found: %.*s\n",
                              dentry->d_name.len, dentry->d_name.name);
 
-                        dget_locked(dentry);
+                        dget_dlock(dentry);
+                        spin_unlock(&dentry->d_lock);
                         break;
                 }
+                spin_unlock(&dentry->d_lock);
 
                 dentry = NULL;
         }
 
-        spin_unlock(&dcache_lock);
+        spin_unlock(&inode->i_lock);
 
         return dentry;
 }