[patch 06/69] reiserfs: suppress lockdep warning

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

From: Jeff Mahoney <[email protected]>

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: <[email protected]>
Cc: "Antonino A. Daplas" <[email protected]>
Cc: Takashi Iwai <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Chris Wright <[email protected]>
---

 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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