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From: Konstantin Belousov <kib@FreeBSD.org>
Date: Wed, 11 Oct 2017 11:03:11 +0000 (UTC)
To: src-committers@freebsd.org, svn-src-all@freebsd.org,
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Subject: svn commit: r324528 - head/sys/kern
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Author: kib
Date: Wed Oct 11 11:03:11 2017
New Revision: 324528
URL: https://svnweb.freebsd.org/changeset/base/324528

Log:
  The th_bintime, th_microtime and th_nanotime members of the timehand
  all cache the last system time (uptime + boottime).  Only the format
  differs.  Do not re-calculate the bintime and simply use the value
  used to calculate the microtime and nanotime.
  
  Group all the updates under the relevant comment.  Remove obsoleted
  XXX part.
  
  Submitted by:	Sebastian Huber <sebastian.huber@embedded-brains.de>
  MFC after:	1 week

Modified:
  head/sys/kern/kern_tc.c

Modified: head/sys/kern/kern_tc.c
==============================================================================
--- head/sys/kern/kern_tc.c	Wed Oct 11 10:56:59 2017	(r324527)
+++ head/sys/kern/kern_tc.c	Wed Oct 11 11:03:11 2017	(r324528)
@@ -1413,10 +1413,8 @@ tc_windup(struct bintime *new_boottimebin)
 		if (bt.sec != t)
 			th->th_boottime.sec += bt.sec - t;
 	}
-	th->th_bintime = th->th_offset;
-	bintime_add(&th->th_bintime, &th->th_boottime);
 	/* Update the UTC timestamps used by the get*() functions. */
-	/* XXX shouldn't do this here.  Should force non-`get' versions. */
+	th->th_bintime = bt;
 	bintime2timeval(&bt, &th->th_microtime);
 	bintime2timespec(&bt, &th->th_nanotime);