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| author | Eric Dumazet <edumazet@google.com> | 2018-06-13 19:11:56 +0200 |
|---|---|---|
| committer | Pablo Neira Ayuso <pablo@netfilter.org> | 2018-06-18 14:13:25 +0200 |
| commit | 9ce7bc036ae4cfe3393232c86e9e1fea2153c237 (patch) | |
| tree | b969b6fb786c98e6341d00573ff56b484e935e69 /mm/sparse-vmemmap.c | |
| parent | netfilter: nf_queue: augment nfqa_cfg_policy (diff) | |
| download | linux-9ce7bc036ae4cfe3393232c86e9e1fea2153c237.tar.xz linux-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 'mm/sparse-vmemmap.c')
0 files changed, 0 insertions, 0 deletions