From 4b6bbf17d4e1939afa72821879fc033d725e9491 Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Thu, 25 Mar 2021 11:08:14 -0700 Subject: ipv4: shrink netns_ipv4 with sysctl conversions These sysctls that can fit in one byte instead of one int are converted to save space and thus reduce cache line misses. - icmp_echo_ignore_all, icmp_echo_ignore_broadcasts, - icmp_ignore_bogus_error_responses, icmp_errors_use_inbound_ifaddr - tcp_ecn, tcp_ecn_fallback - ip_default_ttl, ip_no_pmtu_disc, ip_fwd_use_pmtu - ip_nonlocal_bind, ip_autobind_reuse - ip_dynaddr, ip_early_demux, raw_l3mdev_accept - nexthop_compat_mode, fwmark_reflect Signed-off-by: Eric Dumazet Signed-off-by: David S. Miller --- include/net/netns/ipv4.h | 32 ++++++++++++++++---------------- 1 file changed, 16 insertions(+), 16 deletions(-) (limited to 'include/net/netns/ipv4.h') diff --git a/include/net/netns/ipv4.h b/include/net/netns/ipv4.h index 9e3cb2722b80..7b572d468fde 100644 --- a/include/net/netns/ipv4.h +++ b/include/net/netns/ipv4.h @@ -83,36 +83,36 @@ struct netns_ipv4 { struct xt_table *nat_table; #endif - int sysctl_icmp_echo_ignore_all; - int sysctl_icmp_echo_ignore_broadcasts; - int sysctl_icmp_ignore_bogus_error_responses; + u8 sysctl_icmp_echo_ignore_all; + u8 sysctl_icmp_echo_ignore_broadcasts; + u8 sysctl_icmp_ignore_bogus_error_responses; + u8 sysctl_icmp_errors_use_inbound_ifaddr; int sysctl_icmp_ratelimit; int sysctl_icmp_ratemask; - int sysctl_icmp_errors_use_inbound_ifaddr; struct local_ports ip_local_ports; - int sysctl_tcp_ecn; - int sysctl_tcp_ecn_fallback; + u8 sysctl_tcp_ecn; + u8 sysctl_tcp_ecn_fallback; - int sysctl_ip_default_ttl; - int sysctl_ip_no_pmtu_disc; - int sysctl_ip_fwd_use_pmtu; + u8 sysctl_ip_default_ttl; + u8 sysctl_ip_no_pmtu_disc; + u8 sysctl_ip_fwd_use_pmtu; int sysctl_ip_fwd_update_priority; - int sysctl_ip_nonlocal_bind; - int sysctl_ip_autobind_reuse; + u8 sysctl_ip_nonlocal_bind; + u8 sysctl_ip_autobind_reuse; /* Shall we try to damage output packets if routing dev changes? */ - int sysctl_ip_dynaddr; - int sysctl_ip_early_demux; + u8 sysctl_ip_dynaddr; + u8 sysctl_ip_early_demux; #ifdef CONFIG_NET_L3_MASTER_DEV - int sysctl_raw_l3mdev_accept; + u8 sysctl_raw_l3mdev_accept; #endif int sysctl_tcp_early_demux; int sysctl_udp_early_demux; - int sysctl_nexthop_compat_mode; + u8 sysctl_nexthop_compat_mode; - int sysctl_fwmark_reflect; + u8 sysctl_fwmark_reflect; int sysctl_tcp_fwmark_accept; #ifdef CONFIG_NET_L3_MASTER_DEV int sysctl_tcp_l3mdev_accept; -- cgit v1.2.3-70-g09d2