[PATCH net-next 1/8] ipv6: add sysctl_ipv6_flowlabel group
From: Eric Dumazet <edumazet@google.com>
Date: 2026-01-15 09:41:47
Subsystem:
networking [general], the rest · Maintainers:
"David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
Group together following struct netns_sysctl_ipv6 fields: - flowlabel_consistency - auto_flowlabels - flowlabel_state_ranges After this patch, ip6_make_flowlabel() uses a single cache line to fetch auto_flowlabels and flowlabel_state_ranges (instead of two before the patch). Signed-off-by: Eric Dumazet <edumazet@google.com> --- include/net/netns/ipv6.h | 10 +++++++--- 1 file changed, 7 insertions(+), 3 deletions(-)
diff --git a/include/net/netns/ipv6.h b/include/net/netns/ipv6.h
index 08d2ecc96e2b43901af6d91ae06d555b5ae9298d..34bdb1308e8ff85f04130ed25f40a4f8a24db083 100644
--- a/include/net/netns/ipv6.h
+++ b/include/net/netns/ipv6.h@@ -30,19 +30,23 @@ struct netns_sysctl_ipv6 { int ip6_rt_min_advmss; u32 multipath_hash_fields; u8 multipath_hash_policy; - u8 bindv6only; + + __cacheline_group_begin(sysctl_ipv6_flowlabel); u8 flowlabel_consistency; u8 auto_flowlabels; - int icmpv6_time; + u8 flowlabel_state_ranges; + __cacheline_group_end(sysctl_ipv6_flowlabel); + u8 icmpv6_echo_ignore_all; u8 icmpv6_echo_ignore_multicast; u8 icmpv6_echo_ignore_anycast; + int icmpv6_time; DECLARE_BITMAP(icmpv6_ratemask, ICMPV6_MSG_MAX + 1); unsigned long *icmpv6_ratemask_ptr; u8 anycast_src_echo_reply; + u8 bindv6only; u8 ip_nonlocal_bind; u8 fwmark_reflect; - u8 flowlabel_state_ranges; int idgen_retries; int idgen_delay; int flowlabel_reflect;
--
2.52.0.457.g6b5491de43-goog