[patch 06/69] reiserfs: suppress lockdep warning

[Chris Wright]

-stable review patch.  If anyone has any objections, please let us know.
---------------------

From: Jeff Mahoney <jeffm@xxxxxxx>

We're getting lockdep warnings due to a post-2.6.21-rc7 bugfix.

The xattr_sem can never be taken in the manner described. Internal inodes
are protected by I_PRIVATE.  Add the appropriate annotation.

Cc: <stable@xxxxxxxxxx>
Cc: "Antonino A. Daplas" <adaplas@xxxxxxx>
Cc: Takashi Iwai <tiwai@xxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
Signed-off-by: Chris Wright <chrisw@xxxxxxxxxxxx>
---

 fs/reiserfs/xattr.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- linux-2.6.21.1.orig/fs/reiserfs/xattr.c
+++ linux-2.6.21.1/fs/reiserfs/xattr.c
@@ -68,7 +68,7 @@ static struct dentry *get_xa_root(struct
 	if (!privroot)
 		return ERR_PTR(-ENODATA);
 
-	mutex_lock(&privroot->d_inode->i_mutex);
+	mutex_lock_nested(&privroot->d_inode->i_mutex, I_MUTEX_XATTR);
 	if (REISERFS_SB(sb)->xattr_root) {
 		xaroot = dget(REISERFS_SB(sb)->xattr_root);
 		goto out;

-- 
-
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