`flags' is used to save value from userspace, there is no need to
initialize it, and FS_FL_USER_VISIBLE is the mask for getflags.
Signed-off-by: NSheng Yong <shengyong1@huawei.com>
Acked-by: NChao Yu <yuchao0@huawei.com>
Signed-off-by: NJaegeuk Kim <jaegeuk@kernel.org>