ext2: constify xattr_handler

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
diff --git a/fs/ext2/acl.c b/fs/ext2/acl.c
index a99e543..ca7e2a0 100644
--- a/fs/ext2/acl.c
+++ b/fs/ext2/acl.c
@@ -420,7 +420,7 @@
 	return error;
 }
 
-struct xattr_handler ext2_xattr_acl_access_handler = {
+const struct xattr_handler ext2_xattr_acl_access_handler = {
 	.prefix	= POSIX_ACL_XATTR_ACCESS,
 	.flags	= ACL_TYPE_ACCESS,
 	.list	= ext2_xattr_list_acl_access,
@@ -428,7 +428,7 @@
 	.set	= ext2_xattr_set_acl,
 };
 
-struct xattr_handler ext2_xattr_acl_default_handler = {
+const struct xattr_handler ext2_xattr_acl_default_handler = {
 	.prefix	= POSIX_ACL_XATTR_DEFAULT,
 	.flags	= ACL_TYPE_DEFAULT,
 	.list	= ext2_xattr_list_acl_default,