xv6-labs-2024-solution/kernel/buf.h
2024-11-25 14:20:37 +08:00

13 lines
257 B
C

struct buf {
int valid; // has data been read from disk?
int disk; // does disk "own" buf?
uint dev;
uint blockno;
struct sleeplock lock;
uint refcnt;
// struct buf *prev; // LRU cache list
// struct buf *next;
uchar data[BSIZE];
};