diff options
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/ipv6.h | 13 | ||||
| -rw-r--r-- | include/net/addrconf.h | 2 | ||||
| -rw-r--r-- | include/net/ip6_route.h | 2 | ||||
| -rw-r--r-- | include/net/ipv6.h | 8 |
4 files changed, 16 insertions, 9 deletions
diff --git a/include/linux/ipv6.h b/include/linux/ipv6.h index ef3aa060a289..383a0ea2ab91 100644 --- a/include/linux/ipv6.h +++ b/include/linux/ipv6.h @@ -3,6 +3,7 @@ #define _IPV6_H #include <uapi/linux/ipv6.h> +#include <linux/cache.h> #define ipv6_optlen(p) (((p)->hdrlen+1) << 3) #define ipv6_authlen(p) (((p)->hdrlen+2) << 2) @@ -10,9 +11,16 @@ * This structure contains configuration options per IPv6 link. */ struct ipv6_devconf { - __s32 forwarding; + /* RX & TX fastpath fields. */ + __cacheline_group_begin(ipv6_devconf_read_txrx); + __s32 disable_ipv6; __s32 hop_limit; __s32 mtu6; + __s32 forwarding; + __s32 disable_policy; + __s32 proxy_ndp; + __cacheline_group_end(ipv6_devconf_read_txrx); + __s32 accept_ra; __s32 accept_redirects; __s32 autoconf; @@ -45,7 +53,6 @@ struct ipv6_devconf { __s32 accept_ra_rt_info_max_plen; #endif #endif - __s32 proxy_ndp; __s32 accept_source_route; __s32 accept_ra_from_local; #ifdef CONFIG_IPV6_OPTIMISTIC_DAD @@ -55,7 +62,6 @@ struct ipv6_devconf { #ifdef CONFIG_IPV6_MROUTE atomic_t mc_forwarding; #endif - __s32 disable_ipv6; __s32 drop_unicast_in_l2_multicast; __s32 accept_dad; __s32 force_tllao; @@ -76,7 +82,6 @@ struct ipv6_devconf { #endif __u32 enhanced_dad; __u32 addr_gen_mode; - __s32 disable_policy; __s32 ndisc_tclass; __s32 rpl_seg_enabled; __u32 ioam6_id; diff --git a/include/net/addrconf.h b/include/net/addrconf.h index 30d6f1e84e46..9d06eb945509 100644 --- a/include/net/addrconf.h +++ b/include/net/addrconf.h @@ -417,7 +417,7 @@ static inline bool ip6_ignore_linkdown(const struct net_device *dev) if (unlikely(!idev)) return true; - return !!idev->cnf.ignore_routes_with_linkdown; + return !!READ_ONCE(idev->cnf.ignore_routes_with_linkdown); } void inet6_ifa_finish_destroy(struct inet6_ifaddr *ifp); diff --git a/include/net/ip6_route.h b/include/net/ip6_route.h index 52a51c69aa9d..a30c6aa9e5cf 100644 --- a/include/net/ip6_route.h +++ b/include/net/ip6_route.h @@ -332,7 +332,7 @@ static inline unsigned int ip6_dst_mtu_maybe_forward(const struct dst_entry *dst rcu_read_lock(); idev = __in6_dev_get(dst->dev); if (idev) - mtu = idev->cnf.mtu6; + mtu = READ_ONCE(idev->cnf.mtu6); rcu_read_unlock(); out: diff --git a/include/net/ipv6.h b/include/net/ipv6.h index cf25ea21d770..88a8e554f7a1 100644 --- a/include/net/ipv6.h +++ b/include/net/ipv6.h @@ -534,13 +534,15 @@ static inline int ipv6_hopopt_jumbo_remove(struct sk_buff *skb) return 0; } -static inline bool ipv6_accept_ra(struct inet6_dev *idev) +static inline bool ipv6_accept_ra(const struct inet6_dev *idev) { + s32 accept_ra = READ_ONCE(idev->cnf.accept_ra); + /* If forwarding is enabled, RA are not accepted unless the special * hybrid mode (accept_ra=2) is enabled. */ - return idev->cnf.forwarding ? idev->cnf.accept_ra == 2 : - idev->cnf.accept_ra; + return READ_ONCE(idev->cnf.forwarding) ? accept_ra == 2 : + accept_ra; } #define IPV6_FRAG_HIGH_THRESH (4 * 1024*1024) /* 4194304 */ |