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* [TCP]: Improve ipv4 established hash function.David S. Miller2008-03-04
| | | | | | | | | | | | | | | | | | | | | | | | | | If all of the entropy is in the local and foreign addresses, but xor'ing together would cancel out that entropy, the current hash performs poorly. Suggested by Cosmin Ratiu: Basically, the situation is as follows: There is a client machine and a server machine. Both create 15000 virtual interfaces, open up a socket for each pair of interfaces and do SIP traffic. By profiling I noticed that there is a lot of time spent walking the established hash chains with this particular setup. The addresses were distributed like this: client interfaces were 198.18.0.1/16 with increments of 1 and server interfaces were 198.18.128.1/16 with increments of 1. As I said, there were 15000 interfaces. Source and destination ports were 5060 for each connection. So in this case, ports don't matter for hashing purposes, and the bits from the address pairs used cancel each other, meaning there are no differences in the whole lot of pairs, so they all end up in the same hash chain. Signed-off-by: David S. Miller <davem@davemloft.net>
* [SCTP]: Update AUTH structures to match declarations in draft-16.Vlad Yasevich2008-02-28
| | | | | | | | The new SCTP socket api (draft 16) updates the AUTH API structures. We never exported these since we knew they would change. Update the rest to match the draft. Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com>
* [IP_TUNNEL]: Don't limit the number of tunnels with generic name explicitly.Pavel Emelyanov2008-02-23
| | | | | | | | | | | | | | Use the added dev_alloc_name() call to create tunnel device name, rather than iterate in a hand-made loop with an artificial limit. Thanks Patrick for noticing this. [ The way this works is, when the device is actually registered, the generic code noticed the '%' in the name and invokes dev_alloc_name() to fully resolve the name. -DaveM ] Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: fix kernel-doc warnings in header filesRandy Dunlap2008-02-18
| | | | | | | | | | | Add missing structure kernel-doc descriptions to sock.h & skbuff.h to fix kernel-doc warnings. (I think that Stephen H. sent a similar patch, but I can't find it. I just want to kill the warnings, with either patch.) Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* [IPSEC]: Fix bogus usage of u64 on input sequence numberHerbert Xu2008-02-13
| | | | | | | | | Al Viro spotted a bogus use of u64 on the input sequence number which is big-endian. This patch fixes it by giving the input sequence number its own member in the xfrm_skb_cb structure. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
* [IPV6]: remove unused method declaration (net/ndisc.h).Rami Rosen2008-02-13
| | | | | | | | This patch removes unused declaration of dflt_rt_lookup() method in include/net/ndisc.h Signed-off-by: Rami Rosen <ramirose@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* [AX25] ax25_ds_timer: use mod_timer instead of add_timerJarek Poplawski2008-02-12
| | | | | | | | | | This patch changes current use of: init_timer(), add_timer() and del_timer() to setup_timer() with mod_timer(), which should be safer anyway. Reported-by: Jann Traschewski <jann@gmx.de> Signed-off-by: Jarek Poplawski <jarkao2@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* [AX25] ax25_timer: use mod_timer instead of add_timerJarek Poplawski2008-02-12
| | | | | | | | | | | | | According to one of Jann's OOPS reports it looks like BUG_ON(timer_pending(timer)) triggers during add_timer() in ax25_start_t1timer(). This patch changes current use of: init_timer(), add_timer() and del_timer() to setup_timer() with mod_timer(), which should be safer anyway. Reported-by: Jann Traschewski <jann@gmx.de> Signed-off-by: Jarek Poplawski <jarkao2@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* Merge branch 'pending' of ↵David S. Miller2008-02-09
|\ | | | | | | master.kernel.org:/pub/scm/linux/kernel/git/vxy/lksctp-dev
| * [SCTP]: Stop claiming that this is a "reference implementation"Vlad Yasevich2008-02-05
| | | | | | | | | | | | | | | | | | | | | | I was notified by Randy Stewart that lksctp claims to be "the reference implementation". First of all, "the refrence implementation" was the original implementation of SCTP in usersapce written ty Randy and a few others. Second, after looking at the definiton of 'reference implementation', we don't really meet the requirements. Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com>
* | [TIPC]: Kill unused static inline (x5)Ilpo Järvinen2008-02-07
| | | | | | | | | | | | | | | | | | | | | | | | | | All these static inlines are unused: in_own_zone 1 (net/tipc/addr.h) msg_dataoctet 1 (net/tipc/msg.h) msg_direct 1 (include/net/tipc/tipc_msg.h) msg_options 1 (include/net/tipc/tipc_msg.h) tipc_nmap_get 1 (net/tipc/bcast.h) Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@helsinki.fi> Signed-off-by: David S. Miller <davem@davemloft.net>
* | [IPV6] Minor cleanup: remove unused definitions in net/ip6_fib.hRami Rosen2008-02-07
| | | | | | | | | | | | | | | | | | This patch removes some unused definitions and one method typedef declaration (f_pnode) in include/net/ip6_fib.h, as they are not used in the kernel. Signed-off-by: Rami Rosen <ramirose@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | [IPV6] Minor clenup: remove two unused definitions in net/ip6_route.hRami Rosen2008-02-07
| | | | | | | | | | | | | | | | Remove IP6_RT_PRIO_FW and IP6_RT_FLOW_MASK definitions in include/net/ip6_route.h, as they are not used in the kernel. Signed-off-by: Rami Rosen <ramirose@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | [NETFILTER]: nf_conntrack: fix ct_extend ->move operationPatrick McHardy2008-02-07
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The ->move operation has two bugs: - It is called with the same extension as source and destination, so it doesn't update the new extension. - The address of the old extension is calculated incorrectly, instead of (void *)ct->ext + ct->ext->offset[i] it uses ct->ext + ct->ext->offset[i]. Fixes a crash on x86_64 reported by Chuck Ebbert <cebbert@redhat.com> and Thomas Woerner <twoerner@redhat.com>. Tested-by: Thomas Woerner <twoerner@redhat.com> Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* | 9p: transport API reorganizationEric Van Hensbergen2008-02-06
| | | | | | | | | | | | | | | | | | | | This merges the mux.c (including the connection interface) with trans_fd in preparation for transport API changes. Ultimately, trans_fd will need to be rewritten to clean it up and simplify the implementation, but this reorganization is viewed as the first step. Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>
* | 9p: add support for sticky bitAnthony Liguori2008-02-06
| | | | | | | | | | | | | | | | | | | | | | | | GDM gets unhappy if /var/gdm doesn't have the sticky bit set. This patch adds support for the sticky bit in much the same way setuid/setgid is supported. With this patch, I can launch X from a v9fs rootfs (although I quickly run out of fds in the server once gnome starts up). Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> Acked-by: Eric Van Hensbergen <ericvh@gmail.com>
* | 9p: block-based virtio clientEric Van Hensbergen2008-02-06
| | | | | | | | | | | | | | | | This replaces the console-based virto client with a block-based client using a single request queue. Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>
* | 9p: create transport rpc cut-thruEric Van Hensbergen2008-02-06
| | | | | | | | | | | | | | | | | | Add a new transport function which allows a cut-thru directly to the transport instead of processing request through the mux if the cut-thru exists. Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>
* | Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6Linus Torvalds2008-02-05
|\| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (21 commits) [PKT_SCHED]: vlan tag match [NET]: Add if_addrlabel.h to sanitized headers. [NET] rtnetlink.c: remove no longer used functions [ICMP]: Restore pskb_pull calls in receive function [INET]: Fix accidentally broken inet(6)_hash_connect's port offset calculations. [NET]: Remove further references to net-modules.txt bluetooth rfcomm tty: destroy before tty_close() bluetooth: blacklist another Broadcom BCM2035 device drivers/bluetooth/btsdio.c: fix double-free drivers/bluetooth/bpa10x.c: fix memleak bluetooth: uninlining bluetooth: hidp_process_hid_control remove unnecessary parameter dealing tun: impossible to deassert IFF_ONE_QUEUE or IFF_NO_PI hamradio: fix dmascc section mismatch [SCTP]: Fix kernel panic while received AUTH chunk with BAD shared key identifier [SCTP]: Fix kernel panic while received AUTH chunk while enabled auth [IPV4]: Formatting fix for /proc/net/fib_trie. [IPV6]: Fix sysctl compilation error. [NET_SCHED]: Add #ifdef CONFIG_NET_EMATCH in net/sched/cls_flow.c (latest git broken build) [IPV4]: Fix compile error building without CONFIG_FS_PROC ...
| * [INET]: Fix accidentally broken inet(6)_hash_connect's port offset calculations.Pavel Emelyanov2008-02-05
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The port offset calculations depend on the protocol family, but, as Adrian noticed, I broke this logic with the commit 5ee31fc1ecdcbc234c8c56dcacef87c8e09909d8 [INET]: Consolidate inet(6)_hash_connect. Return this logic back, by passing the port offset directly into the consolidated function. Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Noticed-by: Adrian Bunk <bunk@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
| * [IPV6]: Fix sysctl compilation error.Daniel Lezcano2008-02-05
| | | | | | | | | | | | | | | | | | | | Move ipv6_icmp_sysctl_init and ipv6_route_sysctl_init into the right ifdef section otherwise that does not compile when CONFIG_SYSCTL=yes and CONFIG_PROC_FS=no Signed-off-by: Daniel Lezcano <dlezcano@fr.ibm.com> Acked-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
| * [IPV4]: Fix compile error building without CONFIG_FS_PROCLi Zefan2008-02-05
| | | | | | | | | | | | | | | | | | | | | | | | | | | | compile error building without CONFIG_FS_PROC: net/ipv4/fib_frontend.c: In function 'fib_net_init': net/ipv4/fib_frontend.c:1032: error: implicit declaration of function 'fib_proc_ init' net/ipv4/fib_frontend.c: In function 'fib_net_exit': net/ipv4/fib_frontend.c:1047: error: implicit declaration of function 'fib_proc_ exit' Signed-off-by: Li Zefan <lizf@cn.fujitsu.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | NetLabel: introduce a new kernel configuration API for NetLabelPaul Moore2008-02-05
|/ | | | | | | | | | | | | | | Add a new set of configuration functions to the NetLabel/LSM API so that LSMs can perform their own configuration of the NetLabel subsystem without relying on assistance from userspace. Signed-off-by: Paul Moore <paul.moore@hp.com> Signed-off-by: Casey Schaufler <casey@schaufler-ca.com> Reviewed-by: James Morris <jmorris@namei.org> Cc: Chris Wright <chrisw@sous-sol.org> Cc: Stephen Smalley <sds@tycho.nsa.gov> Cc: Casey Schaufler <casey@schaufler-ca.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* [IPV6]: Reorg struct ifmcaddr6 to save some bytesArnaldo Carvalho de Melo2008-02-03
| | | | | | | | | | | | | | | | | | | /home/acme/git/net-2.6/net/ipv6/mcast.c: struct ifmcaddr6 | -8 1 struct changed igmp6_group_dropped | -6 add_grec | -3 mld_ifc_timer_expire | -18 ip6_mc_add_src | -3 ip6_mc_del_src | -3 igmp6_group_added | -3 6 functions changed, 36 bytes removed, diff: -36 ipv6.ko: 6 functions changed, 36 bytes removed, diff: -36 Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* [INET_TIMEWAIT_SOCK]: Reorganize struct inet_timewait_sock to save some bytesArnaldo Carvalho de Melo2008-02-03
| | | | | | | | | | | | /home/acme/git/net-2.6/net/ipv6/tcp_ipv6.c: struct inet_timewait_sock | -8 struct tcp_timewait_sock | -8 2 structs changed tcp_v6_rcv | -6 1 function changed, 6 bytes removed, diff: -6 Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* [INET6]: Reorganize struct inet6_dev to save 8 bytesArnaldo Carvalho de Melo2008-02-03
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | And make it a multiple of a 64 bytes, reducing cacheline trashing: Before: [acme@doppio net-2.6]$ pahole -C inet6_dev net/dccp/ipv6.o struct inet6_dev { <SNIP> long unsigned int mc_maxdelay; /* 48 8 */ unsigned char mc_qrv; /* 56 1 */ unsigned char mc_gq_running; /* 57 1 */ unsigned char mc_ifc_count; /* 58 1 */ /* XXX 5 bytes hole, try to pack */ /* --- cacheline 1 boundary (64 bytes) --- */ struct timer_list mc_gq_timer; /* 64 48 */ <SNIP> __u32 if_flags; /* 180 4 */ int dead; /* 184 4 */ u8 rndid[8]; /* 188 8 */ /* XXX 4 bytes hole, try to pack */ /* --- cacheline 3 boundary (192 bytes) was 8 bytes ago --- */ struct timer_list regen_timer; /* 200 48 */ <SNIP> /* size: 456, cachelines: 8 */ /* sum members: 447, holes: 2, sum holes: 9 */ /* last cacheline: 8 bytes */ }; After: net-2.6/net/ipv6/af_inet6.c: struct inet6_dev | -8 1 struct changed Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* [SOCK] proto: Add hashinfo member to struct protoArnaldo Carvalho de Melo2008-02-03
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This way we can remove TCP and DCCP specific versions of sk->sk_prot->get_port: both v4 and v6 use inet_csk_get_port sk->sk_prot->hash: inet_hash is directly used, only v6 need a specific version to deal with mapped sockets sk->sk_prot->unhash: both v4 and v6 use inet_hash directly struct inet_connection_sock_af_ops also gets a new member, bind_conflict, so that inet_csk_get_port can find the per family routine. Now only the lookup routines receive as a parameter a struct inet_hashtable. With this we further reuse code, reducing the difference among INET transport protocols. Eventually work has to be done on UDP and SCTP to make them share this infrastructure and get as a bonus inet_diag interfaces so that iproute can be used with these protocols. net-2.6/net/ipv4/inet_hashtables.c: struct proto | +8 struct inet_connection_sock_af_ops | +8 2 structs changed __inet_hash_nolisten | +18 __inet_hash | -210 inet_put_port | +8 inet_bind_bucket_create | +1 __inet_hash_connect | -8 5 functions changed, 27 bytes added, 218 bytes removed, diff: -191 net-2.6/net/core/sock.c: proto_seq_show | +3 1 function changed, 3 bytes added, diff: +3 net-2.6/net/ipv4/inet_connection_sock.c: inet_csk_get_port | +15 1 function changed, 15 bytes added, diff: +15 net-2.6/net/ipv4/tcp.c: tcp_set_state | -7 1 function changed, 7 bytes removed, diff: -7 net-2.6/net/ipv4/tcp_ipv4.c: tcp_v4_get_port | -31 tcp_v4_hash | -48 tcp_v4_destroy_sock | -7 tcp_v4_syn_recv_sock | -2 tcp_unhash | -179 5 functions changed, 267 bytes removed, diff: -267 net-2.6/net/ipv6/inet6_hashtables.c: __inet6_hash | +8 1 function changed, 8 bytes added, diff: +8 net-2.6/net/ipv4/inet_hashtables.c: inet_unhash | +190 inet_hash | +242 2 functions changed, 432 bytes added, diff: +432 vmlinux: 16 functions changed, 485 bytes added, 492 bytes removed, diff: -7 /home/acme/git/net-2.6/net/ipv6/tcp_ipv6.c: tcp_v6_get_port | -31 tcp_v6_hash | -7 tcp_v6_syn_recv_sock | -9 3 functions changed, 47 bytes removed, diff: -47 /home/acme/git/net-2.6/net/dccp/proto.c: dccp_destroy_sock | -7 dccp_unhash | -179 dccp_hash | -49 dccp_set_state | -7 dccp_done | +1 5 functions changed, 1 bytes added, 242 bytes removed, diff: -241 /home/acme/git/net-2.6/net/dccp/ipv4.c: dccp_v4_get_port | -31 dccp_v4_request_recv_sock | -2 2 functions changed, 33 bytes removed, diff: -33 /home/acme/git/net-2.6/net/dccp/ipv6.c: dccp_v6_get_port | -31 dccp_v6_hash | -7 dccp_v6_request_recv_sock | +5 3 functions changed, 5 bytes added, 38 bytes removed, diff: -33 Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NETNS]: Lookup in FIB semantic hashes taking into account the namespace.Denis V. Lunev2008-01-31
| | | | | | | | | | | | | The namespace is not available in the fib_sync_down_addr, add it as a parameter. Looking up a device by the pointer to it is OK. Looking up using a result from fib_trie/fib_hash table lookup is also safe. No need to fix that at all. So, just fix lookup by address and insertion to the hash table path. Signed-off-by: Denis V. Lunev <den@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NETNS]: Add a namespace mark to fib_info.Denis V. Lunev2008-01-31
| | | | | | | | | This is required to make fib_info lookups namespace aware. In the other case initial namespace devices are marked as dead in the local routing table during other namespace stop. Signed-off-by: Denis V. Lunev <den@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* [IPV4]: fib_sync_down rework.Denis V. Lunev2008-01-31
| | | | | | | | | | fib_sync_down can be called with an address and with a device. In reality it is called either with address OR with a device. The codepath inside is completely different, so lets separate it into two calls for these two cases. Signed-off-by: Denis V. Lunev <den@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NET_SCHED]: Constify struct tcf_ext_mapPatrick McHardy2008-01-31
| | | | | Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* [IPV4] route cache: Introduce rt_genid for smooth cache invalidationEric Dumazet2008-01-31
| | | | | | | | | | | | | | | | | | | | | | | | | | Current ip route cache implementation is not suited to large caches. We can consume a lot of CPU when cache must be invalidated, since we currently need to evict all cache entries, and this eviction is sometimes asynchronous. min_delay & max_delay can somewhat control this asynchronism behavior, but whole thing is a kludge, regularly triggering infamous soft lockup messages. When entries are still in use, this also consumes a lot of ram, filling dst_garbage.list. A better scheme is to use a generation identifier on each entry, so that cache invalidation can be performed by changing the table identifier, without having to scan all entries. No more delayed flushing, no more stalling when secret_interval expires. Invalidated entries will then be freed at GC time (controled by ip_rt_gc_timeout or stress), or when an invalidated entry is found in a chain when an insert is done. Thus we keep a normal equilibrium. This patch : - renames rt_hash_rnd to rt_genid (and makes it an atomic_t) - Adds a new rt_genid field to 'struct rtable' (filling a hole on 64bit) - Checks entry->rt_genid at appropriate places :
* [NETNS]: Tcp-v6 sockets per-net lookup.Pavel Emelyanov2008-01-31
| | | | | | | | | Add a net argument to inet6_lookup and propagate it further. Actually, this is tcp-v6 implementation of what was done for tcp-v4 sockets in a previous patch. Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NETNS]: Tcp-v4 sockets per-net lookup.Pavel Emelyanov2008-01-31
| | | | | | | | | | | Add a net argument to inet_lookup and propagate it further into lookup calls. Plus tune the __inet_check_established. The dccp and inet_diag, which use that lookup functions pass the init_net into them. Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NETNS]: Make bind buckets live in net namespaces.Pavel Emelyanov2008-01-31
| | | | | | | | | | | | | This tags the inet_bind_bucket struct with net pointer, initializes it during creation and makes a filtering during lookup. A better hashfn, that takes the net into account is to be done in the future, but currently all bind buckets with similar port will be in one hash chain. Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* [INET]: Consolidate inet(6)_hash_connect.Pavel Emelyanov2008-01-31
| | | | | | | | | | | | | | | | | | | These two functions are the same except for what they call to "check_established" and "hash" for a socket. This saves half-a-kilo for ipv4 and ipv6. add/remove: 1/0 grow/shrink: 1/4 up/down: 582/-1128 (-546) function old new delta __inet_hash_connect - 577 +577 arp_ignore 108 113 +5 static.hint 8 4 -4 rt_worker_func 376 372 -4 inet6_hash_connect 584 25 -559 inet_hash_connect 586 25 -561 Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NETFILTER]: nf_conntrack: annotate l3protos with constJan Engelhardt2008-01-31
| | | | | | Signed-off-by: Jan Engelhardt <jengelh@computergmbh.de> Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NETFILTER]: nf_{conntrack,nat}_proto_tcp: constify and annotate TCP modulesJan Engelhardt2008-01-31
| | | | | | | | | Constify a few data tables use const qualifiers on variables where possible in the nf_*_proto_tcp sources. Signed-off-by: Jan Engelhardt <jengelh@computergmbh.de> Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NETFILTER]: nf_conntrack: naming unificationPatrick McHardy2008-01-31
| | | | | | | | Rename all "conntrack" variables to "ct" for more consistency and avoiding some overly long lines. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NETFILTER]: nf_conntrack: reorder struct nf_conntrack_l4protoPatrick McHardy2008-01-31
| | | | | | | | Reorder struct nf_conntrack_l4proto so all members used during packet processing are in the same cacheline. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NETFILTER]: nf_conntrack: avoid duplicate protocol comparison in ↵Patrick McHardy2008-01-31
| | | | | | | | | | | | | | | | | | | nf_ct_tuple_equal() nf_ct_tuple_src_equal() and nf_ct_tuple_dst_equal() both compare the protocol numbers. Unfortunately gcc doesn't optimize out the second comparison, so remove it and prefix both functions with __ to indicate that they should not be used directly. Saves another 16 byte of text in __nf_conntrack_find() on x86_64: nf_conntrack_tuple_taken | -20 # 320 -> 300, size inlines: 181 -> 161 __nf_conntrack_find | -16 # 267 -> 251, size inlines: 127 -> 115 __nf_conntrack_confirm | -40 # 875 -> 835, size inlines: 570 -> 537 3 functions changed, 76 bytes removed Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NETFILTER]: nf_conntrack: optimize __nf_conntrack_find()Patrick McHardy2008-01-31
| | | | | | | | | | | | | | | | Ignoring specific entries in __nf_conntrack_find() is only needed by NAT for nf_conntrack_tuple_taken(). Remove it from __nf_conntrack_find() and make nf_conntrack_tuple_taken() search the hash itself. Saves 54 bytes of text in the hotpath on x86_64: __nf_conntrack_find | -54 # 321 -> 267, # inlines: 3 -> 2, size inlines: 181 -> 127 nf_conntrack_tuple_taken | +305 # 15 -> 320, lexblocks: 0 -> 3, # inlines: 0 -> 3, size inlines: 0 -> 181 nf_conntrack_find_get | -2 # 90 -> 88 3 functions changed, 305 bytes added, 56 bytes removed, diff: +249 Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NETFILTER]: nf_conntrack: switch rwlock to spinlockPatrick McHardy2008-01-31
| | | | | | | | | With the RCU conversion only write_lock usages of nf_conntrack_lock are left (except one read_lock that should actually use write_lock in the H.323 helper). Switch to a spinlock. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NETFILTER]: nf_conntrack: use RCU for conntrack hashPatrick McHardy2008-01-31
| | | | | Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NETFILTER]: nf_conntrack_expect: use RCU for expectation hashPatrick McHardy2008-01-31
| | | | | | | | | Use RCU for expectation hash. This doesn't buy much for conntrack runtime performance, but allows to reduce the use of nf_conntrack_lock for /proc and nf_netlink_conntrack. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NETFILTER]: nf_conntrack: use RCU for conntrack helpersPatrick McHardy2008-01-31
| | | | | Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NETFILTER]: nf_conntrack: sparse warningsStephen Hemminger2008-01-31
| | | | | | | | | The hashtable size is really unsigned so sparse complains when you pass a signed integer. Change all uses to make it consistent. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NETFILTER]: arp_tables: per-netns arp_tables FILTERAlexey Dobriyan2008-01-31
| | | | | | Signed-off-by: Alexey Dobriyan <adobriyan@sw.ru> Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NETFILTER]: ip6_tables: per-netns IPv6 FILTER, MANGLE, RAWAlexey Dobriyan2008-01-31
| | | | | | | | | | | Now it's possible to list and manipulate per-netns ip6tables rules. Filtering decisions are based on init_net's table so far. P.S.: remove init_net check in inet6_create() to see the effect Signed-off-by: Alexey Dobriyan <adobriyan@sw.ru> Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NETFILTER]: ip_tables: per-netns FILTER, MANGLE, RAWAlexey Dobriyan2008-01-31
| | | | | | | | | | | | | | | Now, iptables show and configure different set of rules in different netnss'. Filtering decisions are still made by consulting only init_net's set. Changes are identical except naming so no splitting. P.S.: one need to remove init_net checks in nf_sockopt.c and inet_create() to see the effect. Signed-off-by: Alexey Dobriyan <adobriyan@sw.ru> Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
generated by cgit v1.2.2 (git 2.25.0) at 2024-11-27 18:12:24 -0500