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linux/include/net/netns
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Eric Dumazet 77ece4efbe netfilter: ipv6: nf_defrag: reduce struct net memory waste 
commit 9ce7bc036a 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: c038a767cd ("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>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
History 2018-11-20 18:05:17 +00:00
..
conntrack.h netfilter: conntrack: remove central spinlock nf_conntrack_lock 2014-03-07 11:41:13 +01:00
core.h percpu: add __percpu sparse annotations to net 2010-02-16 23:05:38 -08:00
dccp.h [NETNS][DCCPV6]: Move the dccp_v6_ctl_sk on the struct net. 2008-04-13 22:32:25 -07:00
generic.h BUG: headers with BUG/BUG_ON etc. need linux/bug.h 2012-03-04 17:54:34 -05:00
hash.h net: cleanup unsigned to unsigned int 2012-04-15 12:44:40 -04:00
ieee802154_6lowpan.h ieee802154: reassembly: fix possible buffer overflow 2014-07-02 18:34:25 -07:00
ipv4.h ipv4: tcp: get rid of ugly unicast_sock 2015-02-10 13:38:50 +00:00
ipv6.h netfilter: ipv6: nf_defrag: reduce struct net memory waste 2018-11-20 18:05:17 +00:00
mib.h net: use IS_ENABLED(CONFIG_IPV6) 2011-12-11 18:25:16 -05:00
netfilter.h netfilter: nf_log: prepare net namespace support for loggers 2013-04-05 20:12:54 +02:00
nftables.h netfilter: nf_tables: set NLM_F_DUMP_INTR if netlink dumping is stale 2014-07-14 12:00:16 +02:00
packet.h packet: fix broken build. 2012-08-23 09:29:45 -07:00
sctp.h sctp: fix ASCONF list handling 2015-07-06 10:22:13 +01:00
unix.h [NETNS]: struct net content re-work (v3) 2008-01-28 14:57:14 -08:00
x_tables.h netfilter: {ipt,ebt}_ULOG: rise warning on deprecation 2013-05-23 14:23:16 +02:00
xfrm.h flowcache: restore a single flow_cache kmem_cache 2014-03-10 21:45:11 -04:00