linux/net/netfilter
Florian Westphal 482cfc3185 netfilter: xtables: avoid percpu ruleset duplication
We store the rule blob per (possible) cpu.  Unfortunately this means we can
waste lot of memory on big smp machines. ipt_entry structure ('rule head')
is 112 byte, so e.g. with maxcpu=64 one single rule eats
close to 8k RAM.

Since previous patch made counters percpu it appears there is nothing
left in the rule blob that needs to be percpu.

On my test system (144 possible cpus, 400k dummy rules) this
change saves close to 9 Gigabyte of RAM.

Reported-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com>
Acked-by: Jesper Dangaard Brouer <brouer@redhat.com>
Signed-off-by: Florian Westphal <fw@strlen.de>
Acked-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2015-06-12 14:27:10 +02:00
..
ipset netfilter: ipset: deinline ip_set_put_extensions() 2015-05-14 12:51:19 +02:00
ipvs ipv6: Set FLOWI_FLAG_KNOWN_NH at flowi6_flags 2015-05-25 13:25:34 -04:00
core.c netfilter: add netfilter ingress hook after handle_ing() under unique static key 2015-05-14 01:10:05 -04:00
Kconfig Merge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf-next 2015-05-31 00:02:30 -07:00
Makefile netfilter: nf_tables: add netdev table to filter from ingress 2015-05-26 18:41:23 +02:00
nf_conntrack_acct.c netfilter: Remove uses of seq_<foo> return values 2015-03-18 10:51:35 +01:00
nf_conntrack_amanda.c
nf_conntrack_broadcast.c
nf_conntrack_core.c
nf_conntrack_ecache.c
nf_conntrack_expect.c netfilter: Remove uses of seq_<foo> return values 2015-03-18 10:51:35 +01:00
nf_conntrack_extend.c
nf_conntrack_ftp.c
nf_conntrack_h323_asn1.c
nf_conntrack_h323_main.c ipv6: Remove external dependency on rt6i_gateway and RTF_ANYCAST 2015-05-25 13:25:33 -04:00
nf_conntrack_h323_types.c
nf_conntrack_helper.c
nf_conntrack_irc.c
nf_conntrack_l3proto_generic.c
nf_conntrack_labels.c
nf_conntrack_netbios_ns.c
nf_conntrack_netlink.c
nf_conntrack_pptp.c
nf_conntrack_proto.c
nf_conntrack_proto_dccp.c
nf_conntrack_proto_generic.c netfilter: conntrack: warn the user if there is a better helper to use 2015-06-12 14:06:24 +02:00
nf_conntrack_proto_gre.c
nf_conntrack_proto_sctp.c
nf_conntrack_proto_tcp.c conntrack: RFC5961 challenge ACK confuse conntrack LAST-ACK transition 2015-05-15 20:50:56 +02:00
nf_conntrack_proto_udp.c
nf_conntrack_proto_udplite.c
nf_conntrack_sane.c
nf_conntrack_seqadj.c
nf_conntrack_sip.c
nf_conntrack_snmp.c
nf_conntrack_standalone.c
nf_conntrack_tftp.c
nf_conntrack_timeout.c
nf_conntrack_timestamp.c
nf_internals.h netfilter: Create and use nf_hook_state. 2015-04-04 12:17:40 -04:00
nf_log.c netfilter: restore rule tracing via nfnetlink_log 2015-03-19 11:14:48 +01:00
nf_log_common.c netfilter: bridge: add helpers for fetching physin/outdev 2015-04-08 16:49:08 +02:00
nf_nat_amanda.c
nf_nat_core.c
nf_nat_ftp.c
nf_nat_helper.c
nf_nat_irc.c
nf_nat_proto_common.c
nf_nat_proto_dccp.c
nf_nat_proto_sctp.c
nf_nat_proto_tcp.c
nf_nat_proto_udp.c
nf_nat_proto_udplite.c
nf_nat_proto_unknown.c
nf_nat_redirect.c
nf_nat_sip.c
nf_nat_tftp.c
nf_queue.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next 2015-04-08 18:30:21 +02:00
nf_sockopt.c
nf_synproxy_core.c
nf_tables_api.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf-next 2015-05-31 00:02:30 -07:00
nf_tables_core.c netfilter: nf_tables: switch registers to 32 bit addressing 2015-04-13 17:17:29 +02:00
nf_tables_inet.c
nf_tables_netdev.c netfilter: nf_tables: add netdev table to filter from ingress 2015-05-26 18:41:23 +02:00
nfnetlink.c
nfnetlink_acct.c
nfnetlink_cthelper.c netfilter: Zero the tuple in nfnl_cthelper_parse_tuple() 2015-03-12 13:07:36 +01:00
nfnetlink_cttimeout.c
nfnetlink_log.c netfilter: nfnetlink_{log,queue}: Register pernet in first place 2015-05-20 13:46:48 +02:00
nfnetlink_queue_core.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2015-05-23 01:22:35 -04:00
nfnetlink_queue_ct.c
nft_bitwise.c netfilter: nf_tables: support variable sized data in nft_data_init() 2015-04-13 17:17:30 +02:00
nft_byteorder.c netfilter: nf_tables: switch registers to 32 bit addressing 2015-04-13 17:17:29 +02:00
nft_cmp.c netfilter: nf_tables: support variable sized data in nft_data_init() 2015-04-13 17:17:30 +02:00
nft_compat.c netfilter: x_tables: add context to know if extension runs from nft_compat 2015-05-15 20:14:07 +02:00
nft_counter.c netfilter: nf_tables: mark stateful expressions 2015-04-13 20:12:31 +02:00
nft_ct.c netfilter: nf_tables: switch registers to 32 bit addressing 2015-04-13 17:17:29 +02:00
nft_dynset.c netfilter: nft_dynset: dynamic stateful expression instantiation 2015-04-13 20:19:55 +02:00
nft_exthdr.c netfilter: nf_tables: switch registers to 32 bit addressing 2015-04-13 17:17:29 +02:00
nft_hash.c netfilter: nf_tables: variable sized set element keys / data 2015-04-13 17:17:31 +02:00
nft_immediate.c netfilter: nf_tables: support variable sized data in nft_data_init() 2015-04-13 17:17:30 +02:00
nft_limit.c netfilter: nf_tables: mark stateful expressions 2015-04-13 20:12:31 +02:00
nft_log.c netfilter: nf_tables: get rid of NFT_REG_VERDICT usage 2015-04-13 17:17:07 +02:00
nft_lookup.c netfilter: nf_tables: add flag to indicate set contains expressions 2015-04-13 20:12:32 +02:00
nft_masq.c
nft_meta.c netfilter: nf_tables: switch registers to 32 bit addressing 2015-04-13 17:17:29 +02:00
nft_nat.c netfilter: nf_tables: switch registers to 32 bit addressing 2015-04-13 17:17:29 +02:00
nft_payload.c netfilter: nf_tables: switch registers to 32 bit addressing 2015-04-13 17:17:29 +02:00
nft_queue.c netfilter: nf_tables: get rid of NFT_REG_VERDICT usage 2015-04-13 17:17:07 +02:00
nft_rbtree.c netfilter: nf_tables: variable sized set element keys / data 2015-04-13 17:17:31 +02:00
nft_redir.c netfilter: nf_tables: add register parsing/dumping helpers 2015-04-13 17:17:28 +02:00
nft_reject.c netfilter; Add some missing default cases to switch statements in nft_reject. 2015-04-27 13:20:34 -04:00
nft_reject_inet.c netfilter; Add some missing default cases to switch statements in nft_reject. 2015-04-27 13:20:34 -04:00
x_tables.c netfilter: xtables: avoid percpu ruleset duplication 2015-06-12 14:27:10 +02:00
xt_addrtype.c ipv6: Remove external dependency on rt6i_gateway and RTF_ANYCAST 2015-05-25 13:25:33 -04:00
xt_AUDIT.c
xt_bpf.c
xt_cgroup.c netfilter: x_tables: fix cgroup matching on non-full sks 2015-04-01 11:26:42 +02:00
xt_CHECKSUM.c
xt_CLASSIFY.c
xt_cluster.c
xt_comment.c
xt_connbytes.c
xt_connlabel.c
xt_connlimit.c
xt_connmark.c
xt_CONNSECMARK.c
xt_conntrack.c
xt_cpu.c
xt_CT.c
xt_dccp.c
xt_devgroup.c
xt_dscp.c
xt_DSCP.c
xt_ecn.c
xt_esp.c
xt_hashlimit.c
xt_helper.c
xt_hl.c
xt_HL.c
xt_HMARK.c
xt_IDLETIMER.c
xt_ipcomp.c
xt_iprange.c
xt_ipvs.c
xt_l2tp.c
xt_LED.c
xt_length.c
xt_limit.c
xt_LOG.c
xt_mac.c
xt_mark.c netfilter: xt_MARK: Add ARP support 2015-05-14 13:00:27 +02:00
xt_multiport.c
xt_nat.c
xt_NETMAP.c
xt_nfacct.c
xt_NFLOG.c
xt_NFQUEUE.c
xt_osf.c
xt_owner.c
xt_physdev.c netfilter: physdev: use helpers 2015-04-08 16:49:09 +02:00
xt_pkttype.c
xt_policy.c
xt_quota.c
xt_RATEEST.c
xt_rateest.c
xt_realm.c
xt_recent.c
xt_REDIRECT.c
xt_repldata.h
xt_sctp.c
xt_SECMARK.c
xt_set.c netfilter: ipset: Use better include files in xt_set.c 2015-05-13 18:21:13 +02:00
xt_socket.c netfilter: x_tables: don't extract flow keys on early demuxed sks in socket match 2015-04-08 16:47:49 +02:00
xt_state.c
xt_statistic.c
xt_string.c
xt_TCPMSS.c netfilter: x_tables: add context to know if extension runs from nft_compat 2015-05-15 20:14:07 +02:00
xt_tcpmss.c
xt_TCPOPTSTRIP.c
xt_tcpudp.c
xt_TEE.c ipv6: Set FLOWI_FLAG_KNOWN_NH at flowi6_flags 2015-05-25 13:25:34 -04:00
xt_time.c
xt_TPROXY.c tcp/dccp: get rid of central timewait timer 2015-04-13 16:40:05 -04:00
xt_TRACE.c
xt_u32.c