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authorMateusz Guzik <mjg@FreeBSD.org>2021-08-13 09:29:57 +0000
committerMateusz Guzik <mjg@FreeBSD.org>2021-08-14 16:49:30 +0000
commitd2b95af1c27ed51d72bef5d9f3d89860edc4fd40 (patch)
treee1b704def85c328771af79fffe482fe2913ede84
parent20d728b559178577869e50c7e3c1bf0ad24a750c (diff)
ip_reass: drop the volatile keyword from nfrags and mark with __exclusive_cache_line
The keyword adds nothing as all operations on the var are performed through atomic_* Reviewed by: kp Sponsored by: Rubicon Communications, LLC ("Netgate") Differential Revision: https://reviews.freebsd.org/D31526
-rw-r--r--sys/netinet/ip_reass.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/sys/netinet/ip_reass.c b/sys/netinet/ip_reass.c
index f5cc6ad68125..8a071345677a 100644
--- a/sys/netinet/ip_reass.c
+++ b/sys/netinet/ip_reass.c
@@ -137,12 +137,12 @@ ipq_drop(struct ipqbucket *bucket, struct ipq *fp)
#define IP_MAXFRAGPACKETS (imin(IP_MAXFRAGS, IPREASS_NHASH * 50))
static int maxfrags;
-static volatile u_int nfrags;
+static u_int __exclusive_cache_line nfrags;
SYSCTL_INT(_net_inet_ip, OID_AUTO, maxfrags, CTLFLAG_RW,
&maxfrags, 0,
"Maximum number of IPv4 fragments allowed across all reassembly queues");
SYSCTL_UINT(_net_inet_ip, OID_AUTO, curfrags, CTLFLAG_RD,
- __DEVOLATILE(u_int *, &nfrags), 0,
+ &nfrags, 0,
"Current number of IPv4 fragments across all reassembly queues");
VNET_DEFINE_STATIC(uma_zone_t, ipq_zone);