From d71e30de40a3503bb178decad4e04aafb43839af Mon Sep 17 00:00:00 2001
From: Matt Macy <mmacy@FreeBSD.org>
Date: Fri, 18 May 2018 17:58:15 +0000
Subject: [PATCH] epoch: move epoch variables to read mostly section

---
 sys/net/if.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/sys/net/if.c b/sys/net/if.c
index 348495f612fb..598fc2a8ad8a 100644
--- a/sys/net/if.c
+++ b/sys/net/if.c
@@ -104,8 +104,8 @@
 _Static_assert(sizeof(((struct ifreq *)0)->ifr_name) ==
     offsetof(struct ifreq, ifr_ifru), "gap between ifr_name and ifr_ifru");
 
-epoch_t net_epoch_preempt;
-epoch_t net_epoch;
+__read_mostly epoch_t net_epoch_preempt;
+__read_mostly epoch_t net_epoch;
 #ifdef COMPAT_FREEBSD32
 #include <sys/mount.h>
 #include <compat/freebsd32/freebsd32.h>