xattr support for btrfs

Signed-off-by: Chris Mason <chris.mason@oracle.com>

fs/btrfs/super.c

diff --git a/fs/btrfs/super.c b/fs/btrfs/super.c
index f94aa1f..c46bc39 100644
--- a/fs/btrfs/super.c
+++ b/fs/btrfs/super.c
@@ -40,6 +40,7 @@
 #include "btrfs_inode.h"
 #include "ioctl.h"
 #include "print-tree.h"
+#include "xattr.h"
 
 #define BTRFS_SUPER_MAGIC 0x9123683E
 
@@ -106,6 +107,7 @@
 	sb->s_maxbytes = MAX_LFS_FILESIZE;
 	sb->s_magic = BTRFS_SUPER_MAGIC;
 	sb->s_op = &btrfs_super_ops;
+	sb->s_xattr = btrfs_xattr_handlers;
 	sb->s_time_gran = 1;
 
 	tree_root = open_ctree(sb);