torvalds/linux
torvalds/linux
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Code
cb15d1e43d
linux/include/net/netns
History
Eric Dumazet 9ce7bc036a 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: 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>
2018-06-18 14:13:25 +02:00
..
can.h can: af_can: give struct holding the CAN per device receive lists a sensible name 2018-01-05 11:12:08 +01:00
conntrack.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
core.h sock: Hide unused variable when !CONFIG_PROC_FS. 2017-12-19 09:58:14 -05:00
dccp.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
generic.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
hash.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
ieee802154_6lowpan.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
ipv4.h tcp: add tcp_comp_sack_nr sysctl 2018-05-18 11:40:27 -04:00
ipv6.h netfilter: ipv6: nf_defrag: reduce struct net memory waste 2018-06-18 14:13:25 +02:00
mib.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
mpls.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
netfilter.h netfilter: don't allocate space for arp/bridge hooks unless needed 2018-01-08 18:01:11 +01:00
nftables.h netfilter: nf_tables: fix chain dependency validation 2018-06-01 09:46:22 +02:00
packet.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
sctp.h sctp: add stream interleave enable members and sockopt 2017-12-11 11:23:04 -05:00
unix.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
x_tables.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
xfrm.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00