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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
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
core.c netfilter: add netfilter ingress hook after handle_ing() under unique static key 2015-05-14 01:10:05 -04:00
nf_conntrack_acct.c netfilter: Remove uses of seq_<foo> return values 2015-03-18 10:51:35 +01:00
nf_conntrack_amanda.c net: Remove state argument from skb_find_text() 2015-02-22 15:59:54 -05:00
nf_conntrack_broadcast.c
…
nf_conntrack_core.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf-next 2015-01-15 01:50:25 -05:00
nf_conntrack_ecache.c netfilter: conntrack: remove timer from ecache extension 2014-06-25 19:15:38 +02:00
nf_conntrack_expect.c netfilter: Remove uses of seq_<foo> return values 2015-03-18 10:51:35 +01:00
nf_conntrack_extend.c netfilter: nf_ct_ext: support variable length extensions 2012-06-16 15:08:49 +02:00
nf_conntrack_ftp.c netfilter: replace strnicmp with strncasecmp 2014-10-14 02:18:24 +02:00
nf_conntrack_h323_asn1.c
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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
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nf_conntrack_helper.c netfilter: fix spelling errors 2014-10-30 17:35:30 +01:00
nf_conntrack_irc.c netfilter: add my copyright statements 2013-04-18 20:27:55 +02:00
nf_conntrack_l3proto_generic.c netfilter: Convert print_tuple functions to return void 2014-11-05 14:10:33 -05:00
nf_conntrack_labels.c netfilter: connlabels: remove unneeded includes 2013-07-31 16:39:18 +02:00
nf_conntrack_netbios_ns.c
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nf_conntrack_netlink.c netfilter: conntrack: Flush connections with a given mark 2015-01-08 12:14:20 +01:00
nf_conntrack_pptp.c netfilter: nf_conntrack: flush net_gre->keymap_list only from gre helper 2014-04-08 10:56:12 +02:00
nf_conntrack_proto.c netfilter: nf_conntrack: remove dead code 2014-01-03 23:41:37 +01:00
nf_conntrack_proto_dccp.c netfilter: Convert print_tuple functions to return void 2014-11-05 14:10:33 -05:00
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 netfilter: Convert print_tuple functions to return void 2014-11-05 14:10:33 -05:00
nf_conntrack_proto_sctp.c netfilter: Convert print_tuple functions to return void 2014-11-05 14:10:33 -05:00
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 netfilter: Convert print_tuple functions to return void 2014-11-05 14:10:33 -05:00
nf_conntrack_proto_udplite.c netfilter: Convert print_tuple functions to return void 2014-11-05 14:10:33 -05:00
nf_conntrack_sane.c netfilter: nf_ct_helper: better logging for dropped packets 2013-02-19 02:48:05 +01:00
nf_conntrack_seqadj.c netfilter: nf_ct_seqadj: print ack seq in the right host byte order 2015-01-05 13:52:20 +01:00
nf_conntrack_sip.c netfilter: replace strnicmp with strncasecmp 2014-10-14 02:18:24 +02:00
nf_conntrack_snmp.c netfilter: nf_ct_snmp: add include file 2013-01-18 00:28:18 +01:00
nf_conntrack_standalone.c netfilter: Remove checks of seq_printf() return values 2014-11-05 14:11:02 -05:00
nf_conntrack_tftp.c netfilter: add my copyright statements 2013-04-18 20:27:55 +02:00
nf_conntrack_timeout.c netfilter: nf_ct_timeout: move initialization out of pernet_operations 2013-01-23 12:56:02 +01:00
nf_conntrack_timestamp.c netfilter: nf_ct_timestamp: Fix BUG_ON after netns deletion 2013-12-20 14:58:29 +01:00
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 netfilter: add my copyright statements 2013-04-18 20:27:55 +02:00
nf_nat_core.c net: use reciprocal_scale() helper 2014-08-23 12:21:21 -07:00
nf_nat_ftp.c netfilter: nf_ct_helper: better logging for dropped packets 2013-02-19 02:48:05 +01:00
nf_nat_helper.c netfilter: nf_conntrack: make sequence number adjustments usuable without NAT 2013-08-28 00:26:48 +02:00
nf_nat_irc.c netfilter: nf_nat: fix access to uninitialized buffer in IRC NAT helper 2014-01-06 14:17:17 +01:00
nf_nat_proto_common.c netfilter: use IS_ENABLED() macro 2014-06-30 11:38:03 +02:00
nf_nat_proto_dccp.c netfilter: use IS_ENABLED() macro 2014-06-30 11:38:03 +02:00
nf_nat_proto_sctp.c netfilter: use IS_ENABLED() macro 2014-06-30 11:38:03 +02:00
nf_nat_proto_tcp.c netfilter: use IS_ENABLED() macro 2014-06-30 11:38:03 +02:00
nf_nat_proto_udp.c netfilter: use IS_ENABLED() macro 2014-06-30 11:38:03 +02:00
nf_nat_proto_udplite.c netfilter: use IS_ENABLED() macro 2014-06-30 11:38:03 +02:00
nf_nat_proto_unknown.c netfilter: add protocol independent NAT core 2012-08-30 03:00:14 +02:00
nf_nat_redirect.c netfilter: combine IPv4 and IPv6 nf_nat_redirect code in one module 2014-11-27 13:08:42 +01:00
nf_nat_sip.c netfilter: replace strnicmp with strncasecmp 2014-10-14 02:18:24 +02:00
nf_nat_tftp.c netfilter: nf_ct_helper: better logging for dropped packets 2013-02-19 02:48:05 +01:00
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 netfilter: don't use mutex_lock_interruptible() 2014-08-08 16:47:23 +02:00
nf_synproxy_core.c netfilter: nf_conntrack: don't release a conntrack with non-zero refcnt 2014-02-05 17:46:06 +01:00
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 netfilter: nf_tables: fix error path in the init functions 2014-01-09 23:25:48 +01:00
nf_tables_netdev.c netfilter: nf_tables: add netdev table to filter from ingress 2015-05-26 18:41:23 +02:00
nfnetlink.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf-next 2015-01-15 01:50:25 -05:00
nfnetlink_acct.c netfilter: nfnetlink_acct: add filter support to nfacct counter list/reset 2014-08-26 21:36:19 +02:00
nfnetlink_cthelper.c netfilter: Zero the tuple in nfnl_cthelper_parse_tuple() 2015-03-12 13:07:36 +01:00
nfnetlink_cttimeout.c netfilter: cttimeout: allow to set/get default protocol timeouts 2013-10-01 13:17:39 +02:00
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 netfilter: nf_conntrack: make sequence number adjustments usuable without NAT 2013-08-28 00:26:48 +02:00
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 netfilter: nf_tables: validate hooks in NAT expressions 2015-01-19 14:52:39 +01:00
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_AUDIT.c netfilter: Convert uses of __constant_<foo> to <foo> 2014-03-13 14:13:19 +01:00
xt_CHECKSUM.c
…
xt_CLASSIFY.c
…
xt_CONNSECMARK.c
…
xt_CT.c netfilter: nf_conntrack: don't release a conntrack with non-zero refcnt 2014-02-05 17:46:06 +01:00
xt_DSCP.c netfilter: fix various sparse warnings 2014-11-13 12:14:42 +01:00
xt_HL.c
…
xt_HMARK.c net: use reciprocal_scale() helper 2014-08-23 12:21:21 -07:00
xt_IDLETIMER.c netfilter: Remove unnecessary OOM logging messages 2011-11-01 09:19:49 +01:00
xt_LED.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2014-08-05 18:46:26 -07:00
xt_LOG.c netfilter: xt_LOG: add missing string format in nf_log_packet() 2014-06-28 18:50:35 +02:00
xt_NETMAP.c netfilter: combine ipt_NETMAP and ip6t_NETMAP 2012-09-21 12:11:08 +02:00
xt_NFLOG.c netfilter: log: netns NULL ptr bug when calling from conntrack 2013-05-15 14:11:07 +02:00
xt_NFQUEUE.c netfilter: xt_NFQUEUE: separate reusable code 2013-12-07 23:20:45 +01:00
xt_RATEEST.c net: sched: make bstats per cpu and estimator RCU safe 2014-09-30 01:02:26 -04:00
xt_REDIRECT.c netfilter: combine IPv4 and IPv6 nf_nat_redirect code in one module 2014-11-27 13:08:42 +01:00
xt_SECMARK.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_TCPOPTSTRIP.c netfilter: xt_TCPOPTSTRIP: fix possible off by one access 2013-08-01 11:45:15 +02:00
xt_TEE.c ipv6: Set FLOWI_FLAG_KNOWN_NH at flowi6_flags 2015-05-25 13:25:34 -04:00
xt_TPROXY.c tcp/dccp: get rid of central timewait timer 2015-04-13 16:40:05 -04:00
xt_TRACE.c
…
xt_addrtype.c ipv6: Remove external dependency on rt6i_gateway and RTF_ANYCAST 2015-05-25 13:25:33 -04:00
xt_bpf.c net: filter: split 'struct sk_filter' into socket and bpf parts 2014-08-02 15:03:58 -07:00
xt_cgroup.c netfilter: x_tables: fix cgroup matching on non-full sks 2015-04-01 11:26:42 +02:00
xt_cluster.c net: use reciprocal_scale() helper 2014-08-23 12:21:21 -07:00
xt_comment.c
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xt_connbytes.c netfilter: Convert pr_warning to pr_warn 2014-09-10 12:40:10 -07:00
xt_connlabel.c netfilter: add connlabel conntrack extension 2013-01-18 00:28:15 +01:00
xt_connlimit.c netfilter: xt_connlimit: honor conntrack zone if available 2014-11-17 12:44:20 +01:00
xt_connmark.c netfilter: Fix FSF address in file headers 2013-12-06 12:37:57 -05:00
xt_conntrack.c netfilter: add my copyright statements 2013-04-18 20:27:55 +02:00
xt_cpu.c
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xt_dccp.c
…
xt_devgroup.c
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xt_dscp.c
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xt_ecn.c netfilter: xtables: collapse conditions in xt_ecn 2011-12-27 20:45:25 +01:00
xt_esp.c
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xt_hashlimit.c netfilter: Remove checks of seq_printf() return values 2014-11-05 14:11:02 -05:00
xt_helper.c
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xt_hl.c
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xt_ipcomp.c netfilter: xt_ipcomp: Use ntohs to ease sparse warning 2014-02-19 11:41:25 +01:00
xt_iprange.c
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xt_ipvs.c ipvs: API change to avoid rescan of IPv6 exthdr 2012-09-28 11:34:33 +09:00
xt_l2tp.c netfilter: introduce l2tp match extension 2014-01-09 21:36:39 +01:00
xt_length.c
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xt_limit.c netfilter: add my copyright statements 2013-04-18 20:27:55 +02:00
xt_mac.c netfilter: Convert compare_ether_addr to ether_addr_equal 2012-05-09 20:49:18 -04:00
xt_mark.c netfilter: xt_MARK: Add ARP support 2015-05-14 13:00:27 +02:00
xt_multiport.c
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xt_nat.c netfilter: xt_nat: fix incorrect hooks for SNAT and DNAT targets 2012-10-15 13:39:12 +02:00
xt_nfacct.c netfilter: nfnetlink_acct: Adding quota support to accounting framework 2014-04-29 18:25:14 +02:00
xt_osf.c netfilter: xt_osf: Use continue to reduce indentation 2014-12-23 14:20:10 +01:00
xt_owner.c userns: xt_owner: Add basic user namespace support. 2012-08-14 21:55:30 -07:00
xt_physdev.c netfilter: physdev: use helpers 2015-04-08 16:49:09 +02:00
xt_pkttype.c
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xt_policy.c
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xt_quota.c net: Fix files explicitly needing to include module.h 2011-10-31 19:30:28 -04:00
xt_rateest.c net_sched: add 64bit rate estimators 2013-06-11 02:51:03 -07:00
xt_realm.c
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xt_recent.c netfilter: xt_recent: don't reject rule if new hitcount exceeds table max 2015-02-16 17:00:47 +01:00
xt_repldata.h net: netfilter: LLVMLinux: vlais-netfilter 2014-06-07 11:44:39 -07:00
xt_sctp.c
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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
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xt_statistic.c net: replace macros net_random and net_srandom with direct calls to prandom 2014-01-14 15:15:25 -08:00
xt_string.c net: Remove state argument from skb_find_text() 2015-02-22 15:59:54 -05:00
xt_tcpmss.c
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xt_tcpudp.c
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xt_time.c netfilter: xt_time: add support to ignore day transition 2012-09-24 14:29:01 +02:00
xt_u32.c
…