N_FREELIST
for (i = 0; i < N_FREELIST && free_size[i] < bytes; i++)
if (i == N_FREELIST) {
for (i = 0; i < N_FREELIST && free_size[i]; i++)
if (i == N_FREELIST)
static size_t free_size[N_FREELIST];
static caddr_t free_addr[N_FREELIST];