- dcache.heads = MKNZ(DBlock*, HashSize);
- dcache.heap = MKNZ(DBlock*, nblocks);
- dcache.blocks = MKNZ(DBlock, nblocks);
- dcache.write = MKNZ(DBlock*, nblocks);
- dcache.mem = MKNZ(u8int, (nblocks+1+128) * blocksize);
+ dcache.heads = vtbrk(sizeof(DBlock*) * HashSize);
+ dcache.heap = vtbrk(sizeof(DBlock*) * nblocks);
+ dcache.blocks = vtbrk(sizeof(DBlock) * nblocks);
+ dcache.write = vtbrk(sizeof(DBlock*) * nblocks);
+ dcache.mem = vtbrk((nblocks+1+128) * blocksize);