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| author |   Eric Dumazet <edumazet@google.com> | 2018-06-13 10:11:56 -0700 |
|---|---|---|
| committer |   Pablo Neira Ayuso <pablo@netfilter.org> | 2018-06-18 14:13:25 +0200 |
| commit | 9ce7bc036ae4cfe3393232c86e9e1fea2153c237 (patch) | |
| tree | b969b6fb786c98e6341d00573ff56b484e935e69 /include/net/netns | |
| parent | netfilter: nf_queue: augment nfqa_cfg_policy (diff) | |
| download | linux-dev-9ce7bc036ae4cfe3393232c86e9e1fea2153c237.tar.xz linux-dev-9ce7bc036ae4cfe3393232c86e9e1fea2153c237.zip | |
netfilter: ipv6: nf_defrag: reduce struct net memory waste
It is a waste of memory to use a full "struct netns_sysctl_ipv6"
while only one pointer is really used, considering netns_sysctl_ipv6
keeps growing.
Also, since "struct netns_frags" has cache line alignment,
it is better to move the frags_hdr pointer outside, otherwise
we spend a full cache line for this pointer.
This saves 192 bytes of memory per netns.
Fixes: c038a767cd69 ("ipv6: add a new namespace for nf_conntrack_reasm")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Diffstat (limited to 'include/net/netns')
| -rw-r--r-- | include/net/netns/ipv6.h | 1 |
1 files changed, 0 insertions, 1 deletions
diff --git a/include/net/netns/ipv6.h b/include/net/netns/ipv6.h index c978a31b0f84..762ac9931b62 100644 --- a/include/net/netns/ipv6.h +++ b/include/net/netns/ipv6.h @@ -109,7 +109,6 @@ struct netns_ipv6 { #if IS_ENABLED(CONFIG_NF_DEFRAG_IPV6) struct netns_nf_frag { - struct netns_sysctl_ipv6 sysctl; struct netns_frags frags; }; #endif |