*) introduce ngx_time_sigsafe_update() to update the error log time only
*) change ngx_time_update() interface

src/event/modules/ngx_poll_module.c

diff --git a/src/event/modules/ngx_poll_module.c b/src/event/modules/ngx_poll_module.c
index dc11d2e..ea947b7 100644
--- a/src/event/modules/ngx_poll_module.c
+++ b/src/event/modules/ngx_poll_module.c
@@ -263,7 +263,7 @@
     err = (ready == -1) ? ngx_errno : 0;
 
     if (flags & NGX_UPDATE_TIME || ngx_event_timer_alarm) {
-        ngx_time_update(0);
+        ngx_time_update();
     }
 
     ngx_log_debug2(NGX_LOG_DEBUG_EVENT, cycle->log, 0,