Sasha Levin b16c29191d netfilter: nf_conntrack: use safer way to lock all buckets ... When we need to lock all buckets in the connection hashtable we'd attempt to lock 1024 spinlocks, which is way more preemption levels than supported by the kernel. Furthermore, this behavior was hidden by checking if lockdep is enabled, and if it was - use only 8 buckets(!). Fix this by using a global lock and synchronize all buckets on it when we need to lock them all. This is pretty heavyweight, but is only done when we need to resize the hashtable, and that doesn't happen often enough (or at all). Signed-off-by: Sasha Levin <sasha.levin@oracle.com> Acked-by: Jesper Dangaard Brouer <brouer@redhat.com> Reviewed-by: Florian Westphal <fw@strlen.de> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>		2016-01-20 14:15:31 +01:00
..
ipset	netfilter: ipset: allow a 0 netmask with hash_netiface type	2016-01-13 14:03:43 +01:00
ipvs	sctp: Rename NETIF_F_SCTP_CSUM to NETIF_F_SCTP_CRC	2015-12-15 16:49:58 -05:00
Kconfig	netfilter: nf_tables: add forward expression to the netdev family	2016-01-04 17:48:38 +01:00
Makefile	netfilter: nf_tables: add forward expression to the netdev family	2016-01-04 17:48:38 +01:00
core.c	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2015-10-24 06:54:12 -07:00
nf_conntrack_acct.c	…
nf_conntrack_amanda.c	…
nf_conntrack_broadcast.c	…
nf_conntrack_core.c	netfilter: nf_conntrack: use safer way to lock all buckets	2016-01-20 14:15:31 +01:00
nf_conntrack_ecache.c	…
nf_conntrack_expect.c	netfilter: Set /proc/net entries owner to root in namespace	2015-11-25 13:54:09 +01:00
nf_conntrack_extend.c	…
nf_conntrack_ftp.c	netfilter: nf_ct_helper: define pr_fmt()	2016-01-04 17:48:51 +01:00
nf_conntrack_h323_asn1.c	…
nf_conntrack_h323_main.c	…
nf_conntrack_h323_types.c	…
nf_conntrack_helper.c	netfilter: nf_conntrack: use safer way to lock all buckets	2016-01-20 14:15:31 +01:00
nf_conntrack_irc.c	netfilter: nf_ct_helper: define pr_fmt()	2016-01-04 17:48:51 +01:00
nf_conntrack_l3proto_generic.c	…
nf_conntrack_labels.c	netfilter: connlabels: Export setting connlabel length	2015-08-27 11:40:43 -07:00
nf_conntrack_netbios_ns.c	…
nf_conntrack_netlink.c	netfilter: nf_conntrack: use safer way to lock all buckets	2016-01-20 14:15:31 +01:00
nf_conntrack_pptp.c	netfilter: nf_conntrack: push zone object into functions	2015-08-11 12:29:01 +02:00
nf_conntrack_proto.c	…
nf_conntrack_proto_dccp.c	netfilter: nf_conntrack: Add a struct net parameter to l4_pkt_to_tuple	2015-09-18 22:00:04 +02:00
nf_conntrack_proto_generic.c	netfilter: nf_conntrack: Add a struct net parameter to l4_pkt_to_tuple	2015-09-18 22:00:04 +02:00
nf_conntrack_proto_gre.c	netfilter: nf_conntrack: Add a struct net parameter to l4_pkt_to_tuple	2015-09-18 22:00:04 +02:00
nf_conntrack_proto_sctp.c	netfilter: nf_conntrack: Add a struct net parameter to l4_pkt_to_tuple	2015-09-18 22:00:04 +02:00
nf_conntrack_proto_tcp.c	netfilter: nf_conntrack: Add a struct net parameter to l4_pkt_to_tuple	2015-09-18 22:00:04 +02:00
nf_conntrack_proto_udp.c	netfilter: nf_conntrack: Add a struct net parameter to l4_pkt_to_tuple	2015-09-18 22:00:04 +02:00
nf_conntrack_proto_udplite.c	netfilter: nf_conntrack: Add a struct net parameter to l4_pkt_to_tuple	2015-09-18 22:00:04 +02:00
nf_conntrack_sane.c	netfilter: nf_ct_helper: define pr_fmt()	2016-01-04 17:48:51 +01:00
nf_conntrack_seqadj.c	net: Change pseudohdr argument of inet_proto_csum_replace* to be a bool	2015-08-17 21:33:06 -07:00
nf_conntrack_sip.c	netfilter: nf_ct_helper: define pr_fmt()	2016-01-04 17:48:51 +01:00
nf_conntrack_snmp.c	…
nf_conntrack_standalone.c	netfilter: Set /proc/net entries owner to root in namespace	2015-11-25 13:54:09 +01:00
nf_conntrack_tftp.c	netfilter: nf_ct_helper: define pr_fmt()	2016-01-04 17:48:51 +01:00
nf_conntrack_timeout.c	netfilter: cttimeout: add netns support	2015-12-14 12:48:58 +01:00
nf_conntrack_timestamp.c	…
nf_dup_netdev.c	netfilter: nf_tables: add packet duplication to the netdev family	2016-01-03 21:04:23 +01:00
nf_internals.h	netfilter: nf_queue: fix nf_queue_nf_hook_drop()	2015-07-23 16:17:58 +02:00
nf_log.c	netfilter: nf_log: wait for rcu grace after logger unregistration	2015-09-17 13:37:31 +02:00
nf_log_common.c	…
nf_nat_amanda.c	…
nf_nat_core.c	netfilter: Pass net into nf_xfrm_me_harder	2015-09-18 22:00:22 +02:00
nf_nat_ftp.c	…
nf_nat_helper.c	…
nf_nat_irc.c	…
nf_nat_proto_common.c	…
nf_nat_proto_dccp.c	net: Change pseudohdr argument of inet_proto_csum_replace* to be a bool	2015-08-17 21:33:06 -07:00
nf_nat_proto_sctp.c	…
nf_nat_proto_tcp.c	net: Change pseudohdr argument of inet_proto_csum_replace* to be a bool	2015-08-17 21:33:06 -07:00
nf_nat_proto_udp.c	net: Change pseudohdr argument of inet_proto_csum_replace* to be a bool	2015-08-17 21:33:06 -07:00
nf_nat_proto_udplite.c	net: Change pseudohdr argument of inet_proto_csum_replace* to be a bool	2015-08-17 21:33:06 -07:00
nf_nat_proto_unknown.c	…
nf_nat_redirect.c	netfilter: nf_nat_redirect: add missing NULL pointer check	2015-10-27 06:54:56 +01:00
nf_nat_sip.c	…
nf_nat_tftp.c	…
nf_queue.c	netfilter: nf_queue: remove rcu_read_lock calls	2015-10-16 18:22:41 +02:00
nf_sockopt.c	…
nf_synproxy_core.c	Merge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf	2015-09-05 21:57:42 -07:00
nf_tables_api.c	netfilter: nf_tables: Add new attributes into nft_set to store user data.	2016-01-08 13:25:08 +01:00
nf_tables_core.c	netfilter: nf_tables: fix nf_log_trace based tracing	2015-12-09 16:53:46 +01:00
nf_tables_inet.c	netfilter: nf_tables: release objects on netns destruction	2015-12-28 18:34:35 +01:00
nf_tables_netdev.c	netfilter: nf_tables_netdev: fix error path in module initialization	2016-01-18 13:53:37 +01:00
nf_tables_trace.c	netfilter: nf_tables: wrap tracing with a static key	2015-12-09 13:23:13 +01:00
nfnetlink.c	netfilter: nfnetlink: pass down netns pointer to commit() and abort() callbacks	2015-12-28 18:43:15 +01:00
nfnetlink_acct.c	netfilter: nfnetlink: pass down netns pointer to call() and call_rcu()	2015-12-28 18:41:41 +01:00
nfnetlink_cthelper.c	netfilter: nfnetlink: pass down netns pointer to call() and call_rcu()	2015-12-28 18:41:41 +01:00
nfnetlink_cttimeout.c	netfilter: nf_conntrack: use safer way to lock all buckets	2016-01-20 14:15:31 +01:00
nfnetlink_log.c	netfilter: nfnetlink_log: just returns error for unknown command	2016-01-08 13:25:07 +01:00
nfnetlink_queue.c	netfilter: nfnetlink_queue: autoload nf_conntrack_netlink module NFQA_CFG_F_CONNTRACK config flag	2016-01-08 13:25:06 +01:00
nft_bitwise.c	…
nft_byteorder.c	netfilter: nft_byteorder: avoid unneeded le/be conversion steps	2016-01-13 14:02:59 +01:00
nft_cmp.c	…
nft_compat.c	netfilter: nfnetlink: pass down netns pointer to call() and call_rcu()	2015-12-28 18:41:41 +01:00
nft_counter.c	netfilter: nf_tables: add clone interface to expression operations	2015-11-10 23:47:32 +01:00
nft_ct.c	netfilter: nft_ct: keep counters away from CONFIG_NF_CONNTRACK_LABELS	2016-01-14 19:41:16 +01:00
nft_dup_netdev.c	netfilter: nf_tables: add packet duplication to the netdev family	2016-01-03 21:04:23 +01:00
nft_dynset.c	netfilter: nf_tables: add clone interface to expression operations	2015-11-10 23:47:32 +01:00
nft_exthdr.c	…
nft_fwd_netdev.c	netfilter: nf_tables: add forward expression to the netdev family	2016-01-04 17:48:38 +01:00
nft_hash.c	…
nft_immediate.c	…
nft_limit.c	netfilter: nft_limit: allow to invert matching criteria	2016-01-03 20:58:52 +01:00
nft_log.c	netfilter: nf_tables: Use pkt->net instead of computing net from the passed net_devices	2015-09-18 21:58:49 +02:00
nft_lookup.c	…
nft_masq.c	…
nft_meta.c	netfilter: meta: add support for setting skb->pkttype	2015-12-18 14:12:56 +01:00
nft_nat.c	…
nft_payload.c	netfilter: nft_payload: add packet mangling support	2015-11-25 13:54:51 +01:00
nft_queue.c	netfilter: nf_tables: kill nft_pktinfo.ops	2015-09-18 21:58:01 +02:00
nft_rbtree.c	…
nft_redir.c	…
nft_reject.c	…
nft_reject_inet.c	ipv4: Push struct net down into nf_send_reset	2015-09-29 20:21:31 +02:00
x_tables.c	netfilter: Set /proc/net entries owner to root in namespace	2015-11-25 13:54:09 +01:00
xt_AUDIT.c	…
xt_CHECKSUM.c	…
xt_CLASSIFY.c	…
xt_CONNSECMARK.c	…
xt_CT.c	netfilter: cttimeout: add netns support	2015-12-14 12:48:58 +01:00
xt_DSCP.c	…
xt_HL.c	…
xt_HMARK.c	…
xt_IDLETIMER.c	…
xt_LED.c	…
xt_LOG.c	netfilter: x_tables: Use par->net instead of computing from the passed net devices	2015-09-18 21:58:25 +02:00
xt_NETMAP.c	…
xt_NFLOG.c	netfilter: x_tables: Use par->net instead of computing from the passed net devices	2015-09-18 21:58:25 +02:00
xt_NFQUEUE.c	…
xt_RATEEST.c	…
xt_REDIRECT.c	…
xt_SECMARK.c	…
xt_TCPMSS.c	netfilter: xt_TCPMSS: handle CHECKSUM_COMPLETE in tcpmss_tg6()	2016-01-18 12:18:17 +01:00
xt_TCPOPTSTRIP.c	net: Change pseudohdr argument of inet_proto_csum_replace* to be a bool	2015-08-17 21:33:06 -07:00
xt_TEE.c	Merge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf	2015-11-04 20:47:50 -05:00
xt_TPROXY.c	netfilter: x_tables: Use par->net instead of computing from the passed net devices	2015-09-18 21:58:25 +02:00
xt_TRACE.c	…
xt_addrtype.c	netfilter: x_tables: Use par->net instead of computing from the passed net devices	2015-09-18 21:58:25 +02:00
xt_bpf.c	…
xt_cgroup.c	netfilter: implement xt_cgroup cgroup2 path match	2015-12-14 20:34:55 +01:00
xt_cluster.c	…
xt_comment.c	…
xt_connbytes.c	…
xt_connlabel.c	netfilter: connlabels: Export setting connlabel length	2015-08-27 11:40:43 -07:00
xt_connlimit.c	netfilter: nf_conntrack: Add a struct net parameter to l4_pkt_to_tuple	2015-09-18 22:00:04 +02:00
xt_connmark.c	…
xt_conntrack.c	…
xt_cpu.c	…
xt_dccp.c	…
xt_devgroup.c	…
xt_dscp.c	…
xt_ecn.c	…
xt_esp.c	…
xt_hashlimit.c	…
xt_helper.c	…
xt_hl.c	…
xt_ipcomp.c	…
xt_iprange.c	…
xt_ipvs.c	ipvs: Pass ipvs into conn_out_get	2015-09-24 09:34:41 +09:00
xt_l2tp.c	…
xt_length.c	…
xt_limit.c	…
xt_mac.c	…
xt_mark.c	…
xt_multiport.c	…
xt_nat.c	…
xt_nfacct.c	netfilter: nfacct: per network namespace support	2015-08-07 11:50:56 +02:00
xt_osf.c	netfilter: nfnetlink: pass down netns pointer to call() and call_rcu()	2015-12-28 18:41:41 +01:00
xt_owner.c	netfilter: xt_owner: use skb_to_full_sk() helper	2015-11-08 20:56:39 -05:00
xt_physdev.c	…
xt_pkttype.c	…
xt_policy.c	…
xt_quota.c	…
xt_rateest.c	…
xt_realm.c	…
xt_recent.c	netfilter: x_tables: Use par->net instead of computing from the passed net devices	2015-09-18 21:58:25 +02:00
xt_repldata.h	…
xt_sctp.c	…
xt_set.c	…
xt_socket.c	netfilter: x_tables: Use par->net instead of computing from the passed net devices	2015-09-18 21:58:25 +02:00
xt_state.c	…
xt_statistic.c	…
xt_string.c	…
xt_tcpmss.c	…
xt_tcpudp.c	…
xt_time.c	…
xt_u32.c	…