gettime: improve gettimeofday() offload support

[fio.git] / gettime.c

diff --git a/gettime.c b/gettime.c
index 8e53f83fd3b22e368f104d683c776e8aeb6868d1..e2746711d2e4e2b51b914a98a2c9d30e914beeda 100644 (file)
--- a/gettime.c
+++ b/gettime.c
@@ -21,7 +21,8 @@ int tsc_reliable = 0;
 
 struct tv_valid {
        uint64_t last_cycles;
-       uint64_t last_tv_valid;
+       int last_tv_valid;
+       int warned;
 };
 #ifdef CONFIG_TLS_THREAD
 static __thread struct tv_valid static_tv_valid;
@@ -170,8 +171,11 @@ static void __fio_gettime(struct timeval *tp)
                uint64_t usecs, t;
 
                t = get_cpu_clock();
-               if (t < tv->last_cycles && tv->last_tv_valid)
+               if (t < tv->last_cycles && tv->last_tv_valid &&
+                   !tv->warned) {
                        log_err("fio: CPU clock going back in time\n");
+                       tv->warned = 1;
+               }
 
                tv->last_cycles = t;
                tv->last_tv_valid = 1;
@@ -203,10 +207,8 @@ void fio_gettime(struct timeval *tp, void fio_unused *caller)
 
        gtod_log_caller(caller);
 #endif
-       if (fio_unlikely(fio_tv)) {
-               memcpy(tp, fio_tv, sizeof(*tp));
+       if (fio_unlikely(fio_gettime_offload(tp)))
                return;
-       }
 
        __fio_gettime(tp);
 }