HelenOS sources
FS_LABEL_MAXLEN 68 uspace/lib/c/include/ipc/vfs.h char label[FS_LABEL_MAXLEN + 1];
FS_LABEL_MAXLEN 68 uspace/lib/posix/include/libc/ipc/vfs.h char label[FS_LABEL_MAXLEN + 1];
FS_LABEL_MAXLEN 1141 uspace/srv/fs/cdfs/cdfs_ops.c str_cpy(info->label, FS_LABEL_MAXLEN + 1, vol_ident);
FS_LABEL_MAXLEN 1175 uspace/srv/fs/exfat/exfat_ops.c FS_LABEL_MAXLEN + 1);
FS_LABEL_MAXLEN 1206 uspace/srv/fs/exfat/exfat_ops.c str_cpy(info->label, FS_LABEL_MAXLEN + 1, label);
FS_LABEL_MAXLEN 1070 uspace/srv/fs/fat/fat_ops.c str_cpy(info->label, FS_LABEL_MAXLEN + 1, label);
HelenOS homepage, sources at GitHub