freeblk
freeblk(newblk);
void freeblk(daddr_t);
freeblk(newblk, sblock->fs_frag);
void freeblk(daddr_t, long);
void freeblk(daddr_t, long);
freeblock_subr(struct v7fs_self *fs, void *ctx, v7fs_daddr_t freeblk)
if (arg->blk == freeblk) {
arg->i, filename(fs, arg->i), freeblk);
freeblock_dup_remove(fs, freeblk);