reiserfs: suppress lockdep warning

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: Linus Torvalds <[email protected]>
josf · Apr 30, 2007 · 1173a72 · 1173a72
1 parent 42e3808
commit 1173a72
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/fs/reiserfs/xattr.c b/fs/reiserfs/xattr.c
@@ -68,7 +68,7 @@ static struct dentry *get_xa_root(struct super_block *sb, int flags)
 	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;