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typedef struct MLock MLock;
typedef struct Iosect Iosect;
typedef struct Iotrack Iotrack;
typedef struct Xfs Xfs;
struct MLock
{
char key;
};
struct Iosect
{
Iosect *next;
short flags;
MLock lock;
Iotrack *t;
uchar * iobuf;
};
struct Iotrack
{
short flags;
Xfs * xf;
vlong addr;
Iotrack *next; /* in lru list */
Iotrack *prev;
Iotrack *hnext; /* in hash list */
Iotrack *hprev;
MLock lock;
int ref;
Iosect **tp;
};
#define BMOD (1<<0)
#define BIMM (1<<1)
#define BSTALE (1<<2)
Iosect* getosect(Xfs*, vlong);
Iosect* getsect(Xfs*, vlong);
int canmlock(MLock*);
int devread(Xfs*, vlong, void*, long);
int devwrite(Xfs*, vlong, void*, long);
int tread(Iotrack*);
int twrite(Iotrack*);
void iotrack_init(void);
void mlock(MLock*);
void purgebuf(Xfs*);
void putsect(Iosect*);
void sync(void);
void unmlock(MLock*);
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