log: Fetch log times with CLOCK_MONOTONIC, not CLOCK_REALTIME

We report relative timestamps in logs, so we want to avoid jumps in
the system time.

Suggested-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Stefano Brivio <sbrivio@redhat.com>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>

1 files changed, 2 insertions, 2 deletions

diff --git a/log.c b/log.c
index 9474bad..0fb25b7 100644
--- a/log.c
+++ b/log.c
@@ -68,7 +68,7 @@ void vlogmsg(bool newline, int pri, const char *format, va_list ap)
 	struct timespec tp;
 
 	if (debug_print) {
-		clock_gettime(CLOCK_REALTIME, &tp);
+		clock_gettime(CLOCK_MONOTONIC, &tp);
 		fprintf(stderr, logtime_fmt_and_arg(&tp));
 		fprintf(stderr, ": ");
 	}
@@ -382,7 +382,7 @@ void logfile_write(bool newline, int pri, const char *format, va_list ap)
 	char buf[BUFSIZ];
 	int n;
 
-	if (clock_gettime(CLOCK_REALTIME, &now))
+	if (clock_gettime(CLOCK_MONOTONIC, &now))
 		return;
 
 	n  = snprintf(buf, BUFSIZ, logtime_fmt_and_arg(&now));