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| author | Eric Dumazet <edumazet@google.com> | 2018-06-13 10:11:56 -0700 |
|---|---|---|
| committer | Moyster <oysterized@gmail.com> | 2019-05-03 19:24:03 +0200 |
| commit | d1bae6ab837fcf149224754d4a6bf82d10f19286 (patch) | |
| tree | 50ab06665f66bf27c95a231c62a3186a6c07772d /lib | |
| parent | bbf5bf6531caef6973170d7e8da9d808c8a85d9a (diff) | |
netfilter: ipv6: nf_defrag: reduce struct net memory waste
commit 9ce7bc036ae4cfe3393232c86e9e1fea2153c237 upstream.
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")
Change-Id: Id8c8bde53be35e8a927eb26db74b607739ac952b
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Diffstat (limited to 'lib')
0 files changed, 0 insertions, 0 deletions