fsvar.h

// in-core file system types

struct inode {
  uint dev;
  uint inum;
  int count;
  int busy;
  short type;
  short major;
  short minor;
  short nlink;
  uint size;
  uint addrs[NDIRECT];
};

extern uint rootdev;

#define NAMEI_LOOKUP 1
#define NAMEI_CREATE 2
#define NAMEI_DELETE 3