From: Miklos Szeredi <mszeredi@redhat.com>
Date: Fri, 16 Dec 2016 10:02:54 +0000 (+0100)
Subject: Revert "vfs: rename: check backing inode being equal"
X-Git-Tag: v4.14-rc1~1838^2~34
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=8d3e2936375bacce6abacbce3917d667e4133409;p=platform%2Fkernel%2Flinux-rpi3.git

Revert "vfs: rename: check backing inode being equal"

This reverts commit 9409e22acdfc9153f88d9b1ed2bd2a5b34d2d3ca.

Since commit 51f7e52dc943 ("ovl: share inode for hard link") there's no
need to call d_real_inode() to check two overlay inodes for equality.

Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
---

diff --git a/fs/namei.c b/fs/namei.c
index 5b4eed2..31d04d9 100644
--- a/fs/namei.c
+++ b/fs/namei.c
@@ -4345,11 +4345,7 @@ int vfs_rename(struct inode *old_dir, struct dentry *old_dentry,
 	bool new_is_dir = false;
 	unsigned max_links = new_dir->i_sb->s_max_links;
 
-	/*
-	 * Check source == target.
-	 * On overlayfs need to look at underlying inodes.
-	 */
-	if (d_real_inode(old_dentry) == d_real_inode(new_dentry))
+	if (source == target)
 		return 0;
 
 	error = may_delete(old_dir, old_dentry, is_dir);