BTRFS_LABEL_SIZE
char label[BTRFS_LABEL_SIZE];
memcpy(label, fs_info->super_copy->label, BTRFS_LABEL_SIZE);
len = strnlen(label, BTRFS_LABEL_SIZE);
if (len == BTRFS_LABEL_SIZE) {
char label[BTRFS_LABEL_SIZE];
if (strnlen(label, BTRFS_LABEL_SIZE) == BTRFS_LABEL_SIZE) {
BTRFS_LABEL_SIZE - 1);
if (p_len >= BTRFS_LABEL_SIZE)
memset(fs_info->super_copy->label, 0, BTRFS_LABEL_SIZE);
if (super->label[0] && super->label[BTRFS_LABEL_SIZE - 1])
super->label[BTRFS_LABEL_SIZE - 1] = 0;
char label[BTRFS_LABEL_SIZE];