ref: 12c8e27a761f7bb673e1c94f5f3e3b9807bf99a6
dir: /sys/src/cmd/cfs/lru.h/
typedef struct Lruhead Lruhead;
typedef struct Lru Lru;
struct Lru
{
Lru *lprev;
Lru *lnext;
};
void lruinit(Lru*);
void lruadd(Lru*, Lru*);
void lruref(Lru*, Lru*);
void lruderef(Lru*, Lru*);