NILFS_MAX_VOLUME_NAME
char label[NILFS_MAX_VOLUME_NAME + 1];
BUILD_BUG_ON(NILFS_MAX_VOLUME_NAME >= FSLABEL_MAX);
char label[NILFS_MAX_VOLUME_NAME + 1];
if (copy_from_user(label, argp, NILFS_MAX_VOLUME_NAME + 1)) {
len = strnlen(label, NILFS_MAX_VOLUME_NAME + 1);
if (len > NILFS_MAX_VOLUME_NAME) {
NILFS_MAX_VOLUME_NAME);