xattr_handler    1218 include/linux/fs.h 	const struct xattr_handler **s_xattr;
xattr_handler      72 include/linux/posix_acl_xattr.h extern const struct xattr_handler posix_acl_access_xattr_handler;
xattr_handler      73 include/linux/posix_acl_xattr.h extern const struct xattr_handler posix_acl_default_xattr_handler;