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Fio 1.21
[fio.git]
/
time.c
diff --git
a/time.c
b/time.c
index c6a6287819e83b601ac0584db0b716e4dd6acec4..505058f53b270f973482bdd839245d6239d69e99 100644
(file)
--- a/
time.c
+++ b/
time.c
@@
-6,9
+6,10
@@
static struct timeval genesis;
static unsigned long ns_granularity;
static struct timeval genesis;
static unsigned long ns_granularity;
-unsigned long utime_since(struct timeval *s, struct timeval *e)
+unsigned long
long
utime_since(struct timeval *s, struct timeval *e)
{
long sec, usec;
{
long sec, usec;
+ unsigned long long ret;
sec = e->tv_sec - s->tv_sec;
usec = e->tv_usec - s->tv_usec;
sec = e->tv_sec - s->tv_sec;
usec = e->tv_usec - s->tv_usec;
@@
-17,12
+18,18
@@
unsigned long utime_since(struct timeval *s, struct timeval *e)
usec += 1000000;
}
usec += 1000000;
}
- sec *= 1000000UL;
+ /*
+ * time warp bug on some kernels?
+ */
+ if (sec < 0 || (sec == 0 && usec < 0))
+ return 0;
- return sec + usec;
+ ret = sec * 1000000ULL + usec;
+
+ return ret;
}
}
-unsigned long utime_since_now(struct timeval *s)
+unsigned long
long
utime_since_now(struct timeval *s)
{
struct timeval t;
{
struct timeval t;
@@
-32,7
+39,7
@@
unsigned long utime_since_now(struct timeval *s)
unsigned long mtime_since(struct timeval *s, struct timeval *e)
{
unsigned long mtime_since(struct timeval *s, struct timeval *e)
{
- long sec, usec;
+ long sec, usec
, ret
;
sec = e->tv_sec - s->tv_sec;
usec = e->tv_usec - s->tv_usec;
sec = e->tv_sec - s->tv_sec;
usec = e->tv_usec - s->tv_usec;
@@
-43,8
+50,15
@@
unsigned long mtime_since(struct timeval *s, struct timeval *e)
sec *= 1000UL;
usec /= 1000UL;
sec *= 1000UL;
usec /= 1000UL;
+ ret = sec + usec;
+
+ /*
+ * time warp bug on some kernels?
+ */
+ if (ret < 0)
+ ret = 0;
- return
sec + usec
;
+ return
ret
;
}
unsigned long mtime_since_now(struct timeval *s)
}
unsigned long mtime_since_now(struct timeval *s)