From b46a956ad1e898ae86a422ec3c539e0cc8c3436b Mon Sep 17 00:00:00 2001
From: kib <kib@FreeBSD.org>
Date: Wed, 27 Jul 2016 11:27:52 +0000
Subject: [PATCH] Reduce number of timehands to just two.  This is useful
 because consumers can now be only one tc_windup() call late.

Use C99 initialization.

Tested by:	pho (as part of the whole patch)
Reviewed by:	jhb (same)
Discussed with:	bde
Sponsored by:	The FreeBSD Foundation
MFC after:	1 month
X-Differential revision:	https://reviews.freebsd.org/D7302
---
 sys/kern/kern_tc.c | 26 ++++++++------------------
 1 file changed, 8 insertions(+), 18 deletions(-)

diff --git a/sys/kern/kern_tc.c b/sys/kern/kern_tc.c
index 230b95153474..beb4e35dd609 100644
--- a/sys/kern/kern_tc.c
+++ b/sys/kern/kern_tc.c
@@ -76,25 +76,15 @@ struct timehands {
 };
 
 static struct timehands th0;
-static struct timehands th9 = { NULL, 0, 0, 0, {0, 0}, {0, 0}, {0, 0}, 0, &th0};
-static struct timehands th8 = { NULL, 0, 0, 0, {0, 0}, {0, 0}, {0, 0}, 0, &th9};
-static struct timehands th7 = { NULL, 0, 0, 0, {0, 0}, {0, 0}, {0, 0}, 0, &th8};
-static struct timehands th6 = { NULL, 0, 0, 0, {0, 0}, {0, 0}, {0, 0}, 0, &th7};
-static struct timehands th5 = { NULL, 0, 0, 0, {0, 0}, {0, 0}, {0, 0}, 0, &th6};
-static struct timehands th4 = { NULL, 0, 0, 0, {0, 0}, {0, 0}, {0, 0}, 0, &th5};
-static struct timehands th3 = { NULL, 0, 0, 0, {0, 0}, {0, 0}, {0, 0}, 0, &th4};
-static struct timehands th2 = { NULL, 0, 0, 0, {0, 0}, {0, 0}, {0, 0}, 0, &th3};
-static struct timehands th1 = { NULL, 0, 0, 0, {0, 0}, {0, 0}, {0, 0}, 0, &th2};
+static struct timehands th1 = {
+	.th_next = &th0
+};
 static struct timehands th0 = {
-	&dummy_timecounter,
-	0,
-	(uint64_t)-1 / 1000000,
-	0,
-	{1, 0},
-	{0, 0},
-	{0, 0},
-	1,
-	&th1
+	.th_counter = &dummy_timecounter,
+	.th_scale = (uint64_t)-1 / 1000000,
+	.th_offset = { .sec = 1 },
+	.th_generation = 1,
+	.th_next = &th1
 };
 
 static struct timehands *volatile timehands = &th0;