D31528.diff
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	diff --git a/sys/netinet6/frag6.c b/sys/netinet6/frag6.c
	--- a/sys/netinet6/frag6.c
	+++ b/sys/netinet6/frag6.c
	@@ -116,7 +116,7 @@

	/* System wide (global) maximum and count of packets in reassembly queues. */
	static int ip6_maxfrags;
	-static volatile u_int frag6_nfrags = 0;
	+static u_int __exclusive_cache_line frag6_nfrags;

	/* Maximum and current packets in per-VNET reassembly queue. */
	VNET_DEFINE_STATIC(int, ip6_maxfragpackets);
	@@ -164,7 +164,7 @@
	SYSCTL_DECL(_net_inet6_ip6);

	SYSCTL_UINT(_net_inet6_ip6, OID_AUTO, frag6_nfrags,
	- CTLFLAG_RD, __DEVOLATILE(u_int *, &frag6_nfrags), 0,
	+ CTLFLAG_RD, &frag6_nfrags, 0,
	"Global number of IPv6 fragments across all reassembly queues.");

	static void