From b29f1dc568e852fbdff6310b1fac99be5b3e8696 Mon Sep 17 00:00:00 2001
From: Miklos Szeredi <mszeredi@suse.cz>
Date: Tue, 10 Aug 2010 11:41:38 +0200
Subject: [PATCH] --- yaml --- r: 208886 b: refs/heads/master c:
 98dc568bc2ebefe4c0cb315a7fb7eff8bbb43176 h: refs/heads/master v: v3

---
 [refs]            |  2 +-
 trunk/fs/dcache.c | 12 +++++++++---
 2 files changed, 10 insertions(+), 4 deletions(-)

diff --git a/[refs] b/[refs]
index 4b197af1193e..e078f075f16d 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 7ae6bdbd9b9d42da53ea809875c0a6cda3de694c
+refs/heads/master: 98dc568bc2ebefe4c0cb315a7fb7eff8bbb43176
diff --git a/trunk/fs/dcache.c b/trunk/fs/dcache.c
index 995d08069d26..f1809e6b9fda 100644
--- a/trunk/fs/dcache.c
+++ b/trunk/fs/dcache.c
@@ -1970,9 +1970,15 @@ char *__d_path(const struct path *path, struct path *root,
 	return retval;
 
 global_root:
-	retval += 1;	/* hit the slash */
-	if (prepend_name(&retval, &buflen, &dentry->d_name) != 0)
-		goto Elong;
+	/*
+	 * Filesystems needing to implement special "root names"
+	 * should do so with ->d_dname()
+	 */
+	if (IS_ROOT(dentry) &&
+	    (dentry->d_name.len != 1 || dentry->d_name.name[0] != '/')) {
+		WARN(1, "Root dentry has weird name <%.*s>\n",
+		     (int) dentry->d_name.len, dentry->d_name.name);
+	}
 	root->mnt = vfsmnt;
 	root->dentry = dentry;
 	goto out;