Eric Dumazet ea781f197d netfilter: nf_conntrack: use SLAB_DESTROY_BY_RCU and get rid of call_rcu() ... Use "hlist_nulls" infrastructure we added in 2.6.29 for RCUification of UDP & TCP. This permits an easy conversion from call_rcu() based hash lists to a SLAB_DESTROY_BY_RCU one. Avoiding call_rcu() delay at nf_conn freeing time has numerous gains. First, it doesnt fill RCU queues (up to 10000 elements per cpu). This reduces OOM possibility, if queued elements are not taken into account This reduces latency problems when RCU queue size hits hilimit and triggers emergency mode. - It allows fast reuse of just freed elements, permitting better use of CPU cache. - We delete rcu_head from "struct nf_conn", shrinking size of this structure by 8 or 16 bytes. This patch only takes care of "struct nf_conn". call_rcu() is still used for less critical conntrack parts, that may be converted later if necessary. Signed-off-by: Eric Dumazet <dada1@cosmosbay.com> Signed-off-by: Patrick McHardy <kaber@trash.net>		2009-03-25 21:05:46 +01:00
..
ipvs	net: replace uses of __constant_{endian}	2009-02-01 00:45:17 -08:00
core.c	netfilter: remove unneeded goto	2009-02-18 16:29:08 +01:00
Kconfig	netfilter: fix xt_LED build failure	2009-03-25 17:21:34 +01:00
Makefile	netfilter: xtables: add cluster match	2009-03-16 17:10:36 +01:00
nf_conntrack_acct.c
nf_conntrack_amanda.c	net: replace uses of __constant_{endian}	2009-02-01 00:45:17 -08:00
nf_conntrack_core.c	netfilter: nf_conntrack: use SLAB_DESTROY_BY_RCU and get rid of call_rcu()	2009-03-25 21:05:46 +01:00
nf_conntrack_ecache.c
nf_conntrack_expect.c	netfilter: nf_conntrack: use SLAB_DESTROY_BY_RCU and get rid of call_rcu()	2009-03-25 21:05:46 +01:00
nf_conntrack_extend.c
nf_conntrack_ftp.c
nf_conntrack_h323_asn1.c
nf_conntrack_h323_main.c	net: replace uses of __constant_{endian}	2009-02-01 00:45:17 -08:00
nf_conntrack_h323_types.c
nf_conntrack_helper.c	netfilter: nf_conntrack: use SLAB_DESTROY_BY_RCU and get rid of call_rcu()	2009-03-25 21:05:46 +01:00
nf_conntrack_irc.c
nf_conntrack_l3proto_generic.c
nf_conntrack_netbios_ns.c	net: replace uses of __constant_{endian}	2009-02-01 00:45:17 -08:00
nf_conntrack_netlink.c	netfilter: nf_conntrack: use SLAB_DESTROY_BY_RCU and get rid of call_rcu()	2009-03-25 21:05:46 +01:00
nf_conntrack_pptp.c	net: replace uses of __constant_{endian}	2009-02-01 00:45:17 -08:00
nf_conntrack_proto_dccp.c	net: netfilter conntrack - add per-net functionality for DCCP protocol	2009-03-16 16:30:49 +01:00
nf_conntrack_proto_generic.c	netfilter: change generic l4 protocol number	2009-02-18 16:28:35 +01:00
nf_conntrack_proto_gre.c
nf_conntrack_proto_sctp.c
nf_conntrack_proto_tcp.c	netfilter: remove IPvX specific parts from nf_conntrack_l4proto.h	2009-03-16 15:15:35 +01:00
nf_conntrack_proto_udp.c	netfilter: remove IPvX specific parts from nf_conntrack_l4proto.h	2009-03-16 15:15:35 +01:00
nf_conntrack_proto_udplite.c
nf_conntrack_proto.c	netfilter: ctnetlink: add callbacks to the per-proto nlattrs	2009-03-25 18:24:48 +01:00
nf_conntrack_sane.c
nf_conntrack_sip.c
nf_conntrack_standalone.c	netfilter: nf_conntrack: use SLAB_DESTROY_BY_RCU and get rid of call_rcu()	2009-03-25 21:05:46 +01:00
nf_conntrack_tftp.c
nf_internals.h
nf_log.c	netfilter: sysctl support of logger choice	2009-03-23 13:16:53 +01:00
nf_queue.c
nf_sockopt.c
nf_tproxy_core.c	net: Partially allow skb destructors to be used on receive path	2009-02-04 16:55:27 -08:00
nfnetlink_log.c	netfilter: use a linked list of loggers	2009-03-16 14:54:21 +01:00
nfnetlink_queue.c
nfnetlink.c	nefilter: nfnetlink: add nfnetlink_set_err and use it in ctnetlink	2009-03-23 13:21:06 +01:00
x_tables.c	netfilter: iptables: lock free counters	2009-02-20 10:35:32 +01:00
xt_CLASSIFY.c
xt_cluster.c	netfilter: xtables: add cluster match	2009-03-16 17:10:36 +01:00
xt_comment.c
xt_connbytes.c
xt_connlimit.c	netfilter: nf_conntrack: use SLAB_DESTROY_BY_RCU and get rid of call_rcu()	2009-03-25 21:05:46 +01:00
xt_connmark.c
xt_CONNMARK.c
xt_CONNSECMARK.c
xt_conntrack.c
xt_dccp.c
xt_dscp.c
xt_DSCP.c
xt_esp.c
xt_hashlimit.c	netfilter: xt_hashlimit fix	2009-02-24 15:30:29 +01:00
xt_helper.c
xt_hl.c	netfilter: Combine ipt_ttl and ip6t_hl source	2009-02-18 18:39:31 +01:00
xt_HL.c	netfilter: Combine ipt_TTL and ip6t_HL source	2009-02-18 18:38:40 +01:00
xt_iprange.c
xt_LED.c	netfilter: x_tables: add LED trigger target	2009-02-20 10:55:14 +01:00
xt_length.c
xt_limit.c	netfilter: xtables: avoid pointer to self	2009-03-16 15:35:29 +01:00
xt_mac.c
xt_mark.c
xt_MARK.c
xt_multiport.c
xt_NFLOG.c
xt_NFQUEUE.c
xt_NOTRACK.c
xt_owner.c
xt_physdev.c	netfilter: factorize ifname_compare()	2009-03-25 17:31:52 +01:00
xt_pkttype.c
xt_policy.c
xt_quota.c	netfilter: xtables: avoid pointer to self	2009-03-16 15:35:29 +01:00
xt_rateest.c
xt_RATEEST.c
xt_realm.c
xt_recent.c
xt_sctp.c	netfilter: xt_sctp: sctp chunk mapping doesn't work	2009-02-09 14:34:56 -08:00
xt_SECMARK.c
xt_socket.c
xt_state.c
xt_statistic.c	netfilter: xtables: avoid pointer to self	2009-03-16 15:35:29 +01:00
xt_string.c
xt_tcpmss.c
xt_TCPMSS.c
xt_TCPOPTSTRIP.c
xt_tcpudp.c
xt_time.c	netfilter 08/09: xt_time: print timezone for user information	2009-01-12 21:18:36 -08:00
xt_TPROXY.c
xt_TRACE.c
xt_u32.c