Merge branch 'no-rebase-overlayfs' into work.dcache-misc

Author: Al Viro

fs/overlayfs/export.c

@@ -289,7 +289,6 @@ static struct dentry *ovl_obtain_alias(struct super_block *sb,
 {
 	struct dentry *lower = lowerpath ? lowerpath->dentry : NULL;
 	struct dentry *upper = upper_alias ?: index;
-	struct dentry *dentry;
 	struct inode *inode = NULL;
 	struct ovl_entry *oe;
 	struct ovl_inode_params oip = {
@@ -320,27 +319,7 @@ static struct dentry *ovl_obtain_alias(struct super_block *sb,
 	if (upper)
 		ovl_set_flag(OVL_UPPERDATA, inode);
 
-	dentry = d_find_any_alias(inode);
-	if (dentry)
-		goto out_iput;
-
-	dentry = d_alloc_anon(inode->i_sb);
-	if (unlikely(!dentry))
-		goto nomem;
-
-	if (upper_alias)
-		ovl_dentry_set_upper_alias(dentry);
-
-	ovl_dentry_init_reval(dentry, upper, OVL_I_E(inode));
-
-	return d_instantiate_anon(dentry, inode);
-
-nomem:
-	dput(dentry);
-	dentry = ERR_PTR(-ENOMEM);
-out_iput:
-	iput(inode);
-	return dentry;
+	return d_obtain_alias(inode);
 }
 
 /* Get the upper or lower dentry in stack whose on layer @idx */