diff options
| author | ae <ae@FreeBSD.org> | 2015-07-29 08:12:05 +0000 |
|---|---|---|
| committer | ae <ae@FreeBSD.org> | 2015-07-29 08:12:05 +0000 |
| commit | 75425458ac884224851416fa8b7b06d187702f59 (patch) | |
| tree | 138dc350c71d58f402cf101b1018071f60b0ab4b /sys/netinet6/ip6_input.c | |
| parent | 5583964cfc80625a7658e4e03e934d60792eff3b (diff) | |
| download | FreeBSD-src-75425458ac884224851416fa8b7b06d187702f59.zip FreeBSD-src-75425458ac884224851416fa8b7b06d187702f59.tar.gz | |
Convert in_ifaddr_lock and in6_ifaddr_lock to rmlock.
Both are used to protect access to IP addresses lists and they can be
acquired for reading several times per packet. To reduce lock contention
it is better to use rmlock here.
Reviewed by: gnn (previous version)
Obtained from: Yandex LLC
Sponsored by: Yandex LLC
Differential Revision: https://reviews.freebsd.org/D3149
Diffstat (limited to 'sys/netinet6/ip6_input.c')
| -rw-r--r-- | sys/netinet6/ip6_input.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/sys/netinet6/ip6_input.c b/sys/netinet6/ip6_input.c index 78e8ef3..e4e388f 100644 --- a/sys/netinet6/ip6_input.c +++ b/sys/netinet6/ip6_input.c @@ -82,6 +82,8 @@ __FBSDID("$FreeBSD$"); #include <sys/errno.h> #include <sys/time.h> #include <sys/kernel.h> +#include <sys/lock.h> +#include <sys/rmlock.h> #include <sys/syslog.h> #include <net/if.h> @@ -144,8 +146,8 @@ VNET_PCPUSTAT_SYSINIT(ip6stat); VNET_PCPUSTAT_SYSUNINIT(ip6stat); #endif /* VIMAGE */ -struct rwlock in6_ifaddr_lock; -RW_SYSINIT(in6_ifaddr_lock, &in6_ifaddr_lock, "in6_ifaddr_lock"); +struct rmlock in6_ifaddr_lock; +RM_SYSINIT(in6_ifaddr_lock, &in6_ifaddr_lock, "in6_ifaddr_lock"); static void ip6_init2(void *); static int ip6_hopopts_input(u_int32_t *, u_int32_t *, struct mbuf **, int *); |
