#include <sys/time.h>
#include "arch/arch.h"
+#include "lib/seqlock.h"
/*
* Clock sources
CS_INVAL,
};
+extern int fio_get_mono_time(struct timespec *);
extern void fio_gettime(struct timespec *, void *);
extern void fio_gtod_init(void);
extern void fio_clock_init(void);
extern int fio_start_gtod_thread(void);
extern int fio_monotonic_clocktest(int debug);
-extern void fio_local_clock_init(int);
+extern void fio_local_clock_init(void);
-extern struct timespec *fio_ts;
+extern struct fio_ts {
+ struct seqlock seqlock;
+ struct timespec ts;
+} *fio_ts;
static inline int fio_gettime_offload(struct timespec *ts)
{
- time_t last_sec;
+ unsigned int seq;
if (!fio_ts)
return 0;
do {
- read_barrier();
- last_sec = ts->tv_sec = fio_ts->tv_sec;
- ts->tv_nsec = fio_ts->tv_nsec;
- } while (fio_ts->tv_sec != last_sec);
+ seq = read_seqlock_begin(&fio_ts->seqlock);
+ *ts = fio_ts->ts;
+ } while (read_seqlock_retry(&fio_ts->seqlock, seq));
return 1;
}