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2007-11-09SCTP: Make sctp_verify_param return multiple indications.Vlad Yasevich
SCTP-AUTH and future ADD-IP updates have a requirement to do additional verification of parameters and an ability to ABORT the association if verification fails. So, introduce additional return code so that we can clear signal a required action. Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com>
2007-11-09SCTP: Convert custom hash lists to use hlist.Vlad Yasevich
Convert the custom hash list traversals to use hlist functions. Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com>
2007-11-09SCTP: Use hashed lookup when looking for an association.Vlad Yasevich
A SCTP endpoint may have a lot of associations on them and walking the list is fairly inefficient. Instead, use a hashed lookup, and filter out the hash list based on the endopoing we already have. Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com>
2007-11-07SCTP: Fix a potential race between timers and receive path.Vlad Yasevich
There is a possible race condition where the timer code will free the association and the next packet in the queue will also attempt to free the same association. The example is, when we receive an ABORT at about the same time as the retransmission timer fires. If the timer wins the race, it will free the association. Once it releases the lock, the queue processing will recieve the ABORT and will try to free the association again. Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com>
2007-11-07SCTP: Allow ADD_IP to work with AUTH for backward compatibility.Vlad Yasevich
This patch adds a tunable that will allow ADD_IP to work without AUTH for backward compatibility. The default value is off since the default value for ADD_IP is off as well. People who need to use ADD-IP with older implementations take risks of connection hijacking and should consider upgrading or turning this tunable on. Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com>
2007-11-07SCTP: Correctly disable ADD-IP when AUTH is not supported.Vlad Yasevich
Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com>
2007-11-07SCTP: Update RCU handling during the ADD-IP caseVlad Yasevich
After learning more about rcu, it looks like the ADD-IP hadling doesn't need to call call_rcu_bh. All the rcu critical sections use rcu_read_lock, so using call_rcu_bh is wrong here. Now, restore the local_bh_disable() code blocks and use normal call_rcu() calls. Also restore the missing return statement. Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com>
2007-11-07SCTP: Fix difference cases of retransmit.Vlad Yasevich
Commit d0ce92910bc04e107b2f3f2048f07e94f570035d broke several retransmit cases including fast retransmit. The reason is that we should only delay by rto while doing retranmists as a result of a timeout. Retransmit as a result of path mtu discover, fast retransmit, or other evernts that should trigger immidiate retransmissions got broken. Also, since rto is doubled prior to marking of packets elegable for retransmission, we never marked correct chunks anyway. The fix is provide a reason for a given retransmission so that we can mark chunks appropriately and to save the old rto value to do comparisons against. All regressions tests passed with this code. Spotted by Wei Yongjun <yjwei@cn.fujitsu.com> Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com>
2007-11-07SCTP : Fix to process bundled ASCONF chunk correctlyWei Yongjun
If ASCONF chunk is bundled with other chunks as the first chunk, when process the ASCONF parameters, full packet data will be process as the parameters of the ASCONF chunk, not only the real parameters. So if you send a ASCONF chunk bundled with other chunks, you will get an unexpect result. This problem also exists when ASCONF-ACK chunk is bundled with other chunks. This patch fix this problem. Signed-off-by: Wei Yongjun <yjwei@cn.fujitsu.com> Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com>
2007-11-07SCTP : Fix bad formatted comment in outqueue.cWei Yongjun
Just fix the bad format of the comment in outqueue.c. Signed-off-by: Wei Yongjun <yjwei@cn.fujitsu.com> Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com>
2007-11-07[NETLINK]: Fix unicast timeoutsPatrick McHardy
Commit ed6dcf4a in the history.git tree broke netlink_unicast timeouts by moving the schedule_timeout() call to a new function that doesn't propagate the remaining timeout back to the caller. This means on each retry we start with the full timeout again. ipc/mqueue.c seems to actually want to wait indefinitely so this behaviour is retained. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-11-07[INET]: Remove per bucket rwlock in tcp/dccp ehash table.Eric Dumazet
As done two years ago on IP route cache table (commit 22c047ccbc68fa8f3fa57f0e8f906479a062c426) , we can avoid using one lock per hash bucket for the huge TCP/DCCP hash tables. On a typical x86_64 platform, this saves about 2MB or 4MB of ram, for litle performance differences. (we hit a different cache line for the rwlock, but then the bucket cache line have a better sharing factor among cpus, since we dirty it less often). For netstat or ss commands that want a full scan of hash table, we perform fewer memory accesses. Using a 'small' table of hashed rwlocks should be more than enough to provide correct SMP concurrency between different buckets, without using too much memory. Sizing of this table depends on num_possible_cpus() and various CONFIG settings. This patch provides some locking abstraction that may ease a future work using a different model for TCP/DCCP table. Signed-off-by: Eric Dumazet <dada1@cosmosbay.com> Acked-by: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-11-07[IPVS]: Synchronize closing of ConnectionsRumen G. Bogdanovski
This patch makes the master daemon to sync the connection when it is about to close. This makes the connections on the backup to close or timeout according their state. Before the sync was performed only if the connection is in ESTABLISHED state which always made the connections to timeout in the hard coded 3 minutes. However the Andy Gospodarek's patch ([IPVS]: use proper timeout instead of fixed value) effectively did nothing more than increasing this to 15 minutes (Established state timeout). So this patch makes use of proper timeout since it syncs the connections on status changes to FIN_WAIT (2min timeout) and CLOSE (10sec timeout). However if the backup misses CLOSE hopefully it did not miss FIN_WAIT. Otherwise we will just have to wait for the ESTABLISHED state timeout. As it is without this patch. This way the number of the hanging connections on the backup is kept to minimum. And very few of them will be left to timeout with a long timeout. This is important if we want to make use of the fix for the real server overcommit on master/backup fail-over. Signed-off-by: Rumen G. Bogdanovski <rumen@voicecho.com> Signed-off-by: Simon Horman <horms@verge.net.au> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-11-07[IPVS]: Bind connections on stanby if the destination existsRumen G. Bogdanovski
This patch fixes the problem with node overload on director fail-over. Given the scenario: 2 nodes each accepting 3 connections at a time and 2 directors, director failover occurs when the nodes are fully loaded (6 connections to the cluster) in this case the new director will assign another 6 connections to the cluster, If the same real servers exist there. The problem turned to be in not binding the inherited connections to the real servers (destinations) on the backup director. Therefore: "ipvsadm -l" reports 0 connections: root@test2:~# ipvsadm -l IP Virtual Server version 1.2.1 (size=4096) Prot LocalAddress:Port Scheduler Flags -> RemoteAddress:Port Forward Weight ActiveConn InActConn TCP test2.local:5999 wlc -> node473.local:5999 Route 1000 0 0 -> node484.local:5999 Route 1000 0 0 while "ipvs -lnc" is right root@test2:~# ipvsadm -lnc IPVS connection entries pro expire state source virtual destination TCP 14:56 ESTABLISHED 192.168.0.10:39164 192.168.0.222:5999 192.168.0.51:5999 TCP 14:59 ESTABLISHED 192.168.0.10:39165 192.168.0.222:5999 192.168.0.52:5999 So the patch I am sending fixes the problem by binding the received connections to the appropriate service on the backup director, if it exists, else the connection will be handled the old way. So if the master and the backup directors are synchronized in terms of real services there will be no problem with server over-committing since new connections will not be created on the nonexistent real services on the backup. However if the service is created later on the backup, the binding will be performed when the next connection update is received. With this patch the inherited connections will show as inactive on the backup: root@test2:~# ipvsadm -l IP Virtual Server version 1.2.1 (size=4096) Prot LocalAddress:Port Scheduler Flags -> RemoteAddress:Port Forward Weight ActiveConn InActConn TCP test2.local:5999 wlc -> node473.local:5999 Route 1000 0 1 -> node484.local:5999 Route 1000 0 1 rumen@test2:~$ cat /proc/net/ip_vs IP Virtual Server version 1.2.1 (size=4096) Prot LocalAddress:Port Scheduler Flags -> RemoteAddress:Port Forward Weight ActiveConn InActConn TCP C0A800DE:176F wlc -> C0A80033:176F Route 1000 0 1 -> C0A80032:176F Route 1000 0 1 Regards, Rumen Bogdanovski Acked-by: Julian Anastasov <ja@ssi.bg> Signed-off-by: Rumen G. Bogdanovski <rumen@voicecho.com> Signed-off-by: Simon Horman <horms@verge.net.au>
2007-11-07[NET]: Remove Documentation/networking/pt.txtAdrian Bunk
There's no no point in keeping documentation for a driver that was removed many years ago. Signed-off-by: Adrian Bunk <bunk@kernel.org> Acked-by: Alan Cox <alan@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-11-07[NET]: Remove Documentation/networking/routing.txtAdrian Bunk
This file is so outdated that I can't see any value in keeping it. Signed-off-by: Adrian Bunk <bunk@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-11-07[NET]: Remove Documentation/networking/ncsa-telnetAdrian Bunk
Newsflash: There once was a version of NCSA telnet that had some bug. Spotted by Pekka Pietikainen. Signed-off-by: Adrian Bunk <bunk@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-11-07[NET]: Remove comx driver docs.Adrian Bunk
The drivers have already been removed 3.5 years ago. Signed-off-by: Adrian Bunk <bunk@kernel.org> Acked-by: Alan Cox <alan@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-11-07[NET]: Remove Documentation/networking/ConfigurableAdrian Bunk
After more than 11 years this file does no longer contain much useful information. Signed-off-by: Adrian Bunk <bunk@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-11-07[NET]: Clean proto_(un)register from in-code ifdefsPavel Emelyanov
The struct proto has the per-cpu "inuse" counter, which is handled with a special care. All the handling code hides under the ifdef CONFIG_SMP and it introduces some code duplication and makes it look worse than it could. Clean this. Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-11-07[IPSEC]: Fix crypto_alloc_comp error checkingHerbert Xu
The function crypto_alloc_comp returns an errno instead of NULL to indicate error. So it needs to be tested with IS_ERR. This is based on a patch by Vicenç Beltran Querol. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-11-07[VLAN]: Fix SET_VLAN_INGRESS_PRIORITY_CMD ioctlPatrick McHardy
Based on report and patch by Doug Kehn <rdkehn@yahoo.com>: vconfig returns the following error when attempting to execute the set_ingress_map command: vconfig: socket or ioctl error for set_ingress_map: Operation not permitted In vlan.c, vlan_ioctl_handler for SET_VLAN_INGRESS_PRIORITY_CMD sets err = -EPERM and calls vlan_dev_set_ingress_priority. vlan_dev_set_ingress_priority is a void function so err remains at -EPERM and results in the vconfig error (even though the ingress map was set). Fix by setting err = 0 after the vlan_dev_set_ingress_priority call. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-11-07[NETNS]: Fix compiler error in net_namespace.cJohann Felix Soden
Because net_free is called by copy_net_ns before its declaration, the compiler gives an error. This patch puts net_free before copy_net_ns to fix this. The compiler error: net/core/net_namespace.c: In function 'copy_net_ns': net/core/net_namespace.c:97: error: implicit declaration of function 'net_free' net/core/net_namespace.c: At top level: net/core/net_namespace.c:104: warning: conflicting types for 'net_free' net/core/net_namespace.c:104: error: static declaration of 'net_free' follows non-static declaration net/core/net_namespace.c:97: error: previous implicit declaration of 'net_free' was here The error was introduced by the '[NET]: Hide the dead code in the net_namespace.c' patch (6a1a3b9f686bb04820a232cc1657ef2c45670709). Signed-off-by: Johann Felix Soden <johfel@users.sourceforge.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-11-07[TTY]: Use tty_mode_ioctl() in network drivers.Alan Cox
We conciously make a change here - we permit mode and speed setting to be done in things like SLIP mode. There isn't actually a technical reason to disallow this. It's usually a silly thing to do but we can do it and soemone might wish to do so. Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-11-07[TTY]: Fix network driver interactions with TCGET/SET calls.Alan Cox
Dave Miller noted various cases where line disciplines for things like ppp go poking around in termios themselves in ways that broke with the new termios code. Rather than have them all learning about termios internals provide proper methods for this - tty_mode_ioctl() This handles all the terminal mode handling for speed/carrier etc and none of the methods are ldisc dependant so they can be called by any user - tty_perform_flush() This extracts the flush functionality and enables pppd the ppp layer to share it cleanly. The existing n_tty_ioctl code is refactored in this patch to provide the new functions and to call them itself appropriately. This patch has no (intended) behaviour changes and simply prepares for the other fixes. Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-11-07[PKT_SCHED] CLS_U32: Fix endianness problem with u32 classifier hash masks.Radu Rendec
While trying to implement u32 hashes in my shaping machine I ran into a possible bug in the u32 hash/bucket computing algorithm (net/sched/cls_u32.c). The problem occurs only with hash masks that extend over the octet boundary, on little endian machines (where htonl() actually does something). Let's say that I would like to use 0x3fc0 as the hash mask. This means 8 contiguous "1" bits starting at b6. With such a mask, the expected (and logical) behavior is to hash any address in, for instance, 192.168.0.0/26 in bucket 0, then any address in 192.168.0.64/26 in bucket 1, then 192.168.0.128/26 in bucket 2 and so on. This is exactly what would happen on a big endian machine, but on little endian machines, what would actually happen with current implementation is 0x3fc0 being reversed (into 0xc03f0000) by htonl() in the userspace tool and then applied to 192.168.x.x in the u32 classifier. When shifting right by 16 bits (rank of first "1" bit in the reversed mask) and applying the divisor mask (0xff for divisor 256), what would actually remain is 0x3f applied on the "168" octet of the address. One could say is this can be easily worked around by taking endianness into account in userspace and supplying an appropriate mask (0xfc03) that would be turned into contiguous "1" bits when reversed (0x03fc0000). But the actual problem is the network address (inside the packet) not being converted to host order, but used as a host-order value when computing the bucket. Let's say the network address is written as n31 n30 ... n0, with n0 being the least significant bit. When used directly (without any conversion) on a little endian machine, it becomes n7 ... n0 n8 ..n15 etc in the machine's registers. Thus bits n7 and n8 would no longer be adjacent and 192.168.64.0/26 and 192.168.128.0/26 would no longer be consecutive. The fix is to apply ntohl() on the hmask before computing fshift, and in u32_hash_fold() convert the packet data to host order before shifting down by fshift. With helpful feedback from Jamal Hadi Salim and Jarek Poplawski. Signed-off-by: David S. Miller <davem@davemloft.net>
2007-11-07[NET]: Removing duplicit #includesJiri Olsa
Removing duplicit #includes for net/ Signed-off-by: Jiri Olsa <olsajiri@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-11-07[NET]: Let USB_USBNET always select MII.Adrian Bunk
All this USB_USBNET_MII trickery is simply not worth it considering how few code it saves. As a side effect, this also fixes the following compile error reported by Toralf Förster: <-- snip --> ... LD .tmp_vmlinux1 drivers/built-in.o: In function `usbnet_set_settings': (.text+0xf1876): undefined reference to `mii_ethtool_sset' drivers/built-in.o: In function `usbnet_get_settings': (.text+0xf1836): undefined reference to `mii_ethtool_gset' drivers/built-in.o: In function `usbnet_get_link': (.text+0xf18d6): undefined reference to `mii_link_ok' drivers/built-in.o: In function `usbnet_nway_reset': (.text+0xf18f6): undefined reference to `mii_nway_restart' make: *** [.tmp_vmlinux1] Error 1 <-- snip --> Signed-off-by: Adrian Bunk <bunk@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-11-07[RRUNNER]: Do not muck with sysctl_{r,w}mem_maxDavid S. Miller
Drivers have no business changing these values. Signed-off-by: David S. Miller <davem@davemloft.net>
2007-11-07[DLM] lowcomms: Do not muck with sysctl_rmem_max.David S. Miller
Use SO_RCVBUFFORCE instead. Signed-off-by: David S. Miller <davem@davemloft.net>
2007-11-07[IPV4]: Compact some ifdefs in the fib code.Pavel Emelyanov
There are places that check for CONFIG_IP_MULTIPLE_TABLES twice in the same file, but the internals of these #ifdefs can be merged. As a side effect - remove one ifdef from inside a function. Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-11-07[VETH]: Clarify "virtual ethernet device" to "virtual ethernet pair device".Rusty Russell
It'd also be nice to mention "containers" somewhere in the help text (I'm assuming that's what it's for?). Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-11-07[NET]: Kill proc_net_create()David S. Miller
There are no more users. Signed-off-by: David S. Miller <davem@davemloft.net>
2007-11-07[IPV6]: Convert /proc/net/ipv6_route to seq_file interfaceAlexey Dobriyan
This removes last proc_net_create() user. Kudos to Benjamin Thery and Stephen Hemminger for comments on previous version. Signed-off-by: Alexey Dobriyan <adobriyan@sw.ru> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-11-07[PKT_SCHED]: Fix OOPS when removing devices from a teql queuing disciplineEvgeniy Polyakov
tecl_reset() is called from deactivate and qdisc is set to noop already, but subsequent teql_xmit does not know about it and dereference private data as teql qdisc and thus oopses. not catch it first :) Signed-off-by: Evgeniy Polyakov <johnpol@2ka.mipt.ru> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-11-07[DCCP]: Use DEFINE_PROTO_INUSE infrastructure.David S. Miller
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-11-07[SCTP]: Use the {DEFINE|REF}_PROTO_INUSE infrastructureEric Dumazet
Trivial patch to make "sctcp,sctpv6" protocols uses the fast "inuse sockets" infrastructure Each protocol use then a static percpu var, instead of a dynamic one. This saves some ram and some cpu cycles Signed-off-by: Eric Dumazet <dada1@cosmosbay.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-11-07[IPV6]: Use the {DEFINE|REF}_PROTO_INUSE infrastructureEric Dumazet
Trivial patch to make "tcpv6,udpv6,udplitev6,rawv6" protocols uses the fast "inuse sockets" infrastructure Each protocol use then a static percpu var, instead of a dynamic one. This saves some ram and some cpu cycles Signed-off-by: Eric Dumazet <dada1@cosmosbay.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-11-07[IPV4]: Use the {DEFINE|REF}_PROTO_INUSE infrastructureEric Dumazet
Trivial patch to make "tcp,udp,udplite,raw" protocols uses the fast "inuse sockets" infrastructure Each protocol use then a static percpu var, instead of a dynamic one. This saves some ram and some cpu cycles Signed-off-by: Eric Dumazet <dada1@cosmosbay.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-11-07[NET]: Define infrastructure to keep 'inuse' changes in an efficent SMP/NUMA ↵Eric Dumazet
way. "struct proto" currently uses an array stats[NR_CPUS] to track change on 'inuse' sockets per protocol. If NR_CPUS is big, this means we use a big memory area for this. Moreover, all this memory area is located on a single node on NUMA machines, increasing memory pressure on the boot node. In this patch, I tried to : - Keep a fast !CONFIG_SMP implementation - Keep a fast CONFIG_SMP implementation for often used protocols (tcp,udp,raw,...) - Introduce a NUMA efficient implementation Some helper macros are defined in include/net/sock.h These macros take into account CONFIG_SMP If a "struct proto" is declared without using DEFINE_PROTO_INUSE / REF_PROTO_INUSE macros, it will automatically use a default implementation, using a dynamically allocated percpu zone. This default implementation will be NUMA efficient, but might use 32/64 bytes per possible cpu because of current alloc_percpu() implementation. However it still should be better than previous implementation based on stats[NR_CPUS] field. When a "struct proto" is changed to use the new macros, we use a single static "int" percpu variable, lowering the memory and cpu costs, still preserving NUMA efficiency. Signed-off-by: Eric Dumazet <dada1@cosmosbay.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-11-07[PPP]: L2TP: Fix oops in transmit and receive pathsJames Chapman
Changes made on 18-sep to fix skb handling in the pppol2tp driver broke the transmit and receive paths. Users are only running into this now because distros are now using 2.6.23 and I must have messed up when I tested the change. For receive, we now do our own calculation of how much to pull from the skb (variable length L2TP header) rather than using skb_transport_offset(). Also, if the skb isn't a data packet, it must be passed back to UDP with skb->data pointing to the UDP header. For transmit, make sure skb->sk is set up because ip_queue_xmit() needs it. Signed-off-by: James Chapman <jchapman@katalix.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-11-07[IPV4]: Clean the ip_sockglue.c from some ugly ifdefsPavel Emelyanov
The #idfed CONFIG_IP_MROUTE is sometimes places inside the if-s, which looks completely bad. Similar ifdefs inside the functions looks a bit better, but they are also not recommended to be used. Provide an ifdef-ed ip_mroute_opt() helper to cleanup the code. Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-11-07[DECNET]: "addr" module param can't be __initdataAlexey Dobriyan
sysfs keeps references to module parameters via /sys/module/*/parameters, so marking them as __initdata can't work. Steps to reproduce: modprobe decnet cat /sys/module/decnet/parameters/addr BUG: unable to handle kernel paging request at virtual address f88cd410 printing eip: c043dfd1 *pdpt = 0000000000004001 *pde = 0000000004408067 *pte = 0000000000000000 Oops: 0000 [#1] PREEMPT SMP Modules linked in: decnet sunrpc af_packet ipv6 binfmt_misc dm_mirror dm_multipath dm_mod sbs sbshc fan dock battery backlight ac power_supply parport loop rtc_cmos serio_raw rtc_core rtc_lib button amd_rng sr_mod cdrom shpchp pci_hotplug ehci_hcd ohci_hcd uhci_hcd usbcore Pid: 2099, comm: cat Not tainted (2.6.24-rc1-b1d08ac064268d0ae2281e98bf5e82627e0f0c56-bloat #6) EIP: 0060:[<c043dfd1>] EFLAGS: 00210286 CPU: 1 EIP is at param_get_int+0x6/0x20 EAX: c5c87000 EBX: 00000000 ECX: 000080d0 EDX: f88cd410 ESI: f8a108f8 EDI: c5c87000 EBP: 00000000 ESP: c5c97f00 DS: 007b ES: 007b FS: 00d8 GS: 0033 SS: 0068 Process cat (pid: 2099, ti=c5c97000 task=c641ee10 task.ti=c5c97000) Stack: 00000000 f8a108f8 c5c87000 c043db6b f8a108f1 00000124 c043de1a c043db2f f88cd410 ffffffff c5c87000 f8a16bc8 f8a16bc8 c043dd69 c043dd54 c5dd5078 c043dbc8 c5cc7580 c06ee64c c5d679f8 c04c431f c641f480 c641f484 00001000 Call Trace: [<c043db6b>] param_array_get+0x3c/0x62 [<c043de1a>] param_array_set+0x0/0xdf [<c043db2f>] param_array_get+0x0/0x62 [<c043dd69>] param_attr_show+0x15/0x2d [<c043dd54>] param_attr_show+0x0/0x2d [<c043dbc8>] module_attr_show+0x1a/0x1e [<c04c431f>] sysfs_read_file+0x7c/0xd9 [<c04c42a3>] sysfs_read_file+0x0/0xd9 [<c048d4b2>] vfs_read+0x88/0x134 [<c042090b>] do_page_fault+0x0/0x7d5 [<c048d920>] sys_read+0x41/0x67 [<c04080fa>] sysenter_past_esp+0x6b/0xc1 ======================= Code: 00 83 c4 0c c3 83 ec 0c 8b 52 10 8b 12 c7 44 24 04 27 dd 6c c0 89 04 24 89 54 24 08 e8 ea 01 0c 00 83 c4 0c c3 83 ec 0c 8b 52 10 <8b> 12 c7 44 24 04 58 8c 6a c0 89 04 24 89 54 24 08 e8 ca 01 0c EIP: [<c043dfd1>] param_get_int+0x6/0x20 SS:ESP 0068:c5c97f00 Signed-off-by: Alexey Dobriyan <adobriyan@sw.ru> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-11-07[IPv6] SNMP: Restore Udp6InErrors incrementationMitsuru Chinen
As the checksum verification is postponed till user calls recv or poll, the inrementation of Udp6InErrors counter should be also postponed. Currently, it is postponed in non-blocking operation case. However it should be postponed in all case like the IPv4 code. Signed-off-by: Mitsuru Chinen <mitch@linux.vnet.ibm.com> Acked-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-11-07[NET]: Remove /proc/net/stat/*_arp_cache upon module removalAlexey Dobriyan
neigh_table_init_no_netlink() creates them, but they aren't removed anywhere. Steps to reproduce: modprobe clip rmmod clip cat /proc/net/stat/clip_arp_cache BUG: unable to handle kernel paging request at virtual address f89d7758 printing eip: c05a99da *pdpt = 0000000000004001 *pde = 0000000004408067 *pte = 0000000000000000 Oops: 0000 [#1] PREEMPT SMP Modules linked in: atm af_packet ipv6 binfmt_misc sbs sbshc fan dock battery backlight ac power_supply parport loop rtc_cmos rtc_core rtc_lib serio_raw button k8temp hwmon amd_rng sr_mod cdrom shpchp pci_hotplug ehci_hcd ohci_hcd uhci_hcd usbcore Pid: 2082, comm: cat Not tainted (2.6.24-rc1-b1d08ac064268d0ae2281e98bf5e82627e0f0c56-bloat #4) EIP: 0060:[<c05a99da>] EFLAGS: 00210256 CPU: 0 EIP is at neigh_stat_seq_next+0x26/0x3f EAX: 00000001 EBX: f89d7600 ECX: c587bf40 EDX: 00000000 ESI: 00000000 EDI: 00000001 EBP: 00000400 ESP: c587bf1c DS: 007b ES: 007b FS: 00d8 GS: 0033 SS: 0068 Process cat (pid: 2082, ti=c587b000 task=c5984e10 task.ti=c587b000) Stack: c06228cc c5313790 c049e5c0 0804f000 c45a7b00 c53137b0 00000000 00000000 00000082 00000001 00000000 00000000 00000000 fffffffb c58d6780 c049e437 c45a7b00 c04b1f93 c587bfa0 00000400 0804f000 00000400 0804f000 c04b1f2f Call Trace: [<c049e5c0>] seq_read+0x189/0x281 [<c049e437>] seq_read+0x0/0x281 [<c04b1f93>] proc_reg_read+0x64/0x77 [<c04b1f2f>] proc_reg_read+0x0/0x77 [<c048907e>] vfs_read+0x80/0xd1 [<c0489491>] sys_read+0x41/0x67 [<c04080fa>] sysenter_past_esp+0x6b/0xc1 ======================= Code: e9 ec 8d 05 00 56 8b 11 53 8b 40 70 8b 58 3c eb 29 0f a3 15 80 91 7b c0 19 c0 85 c0 8d 42 01 74 17 89 c6 c1 fe 1f 89 01 89 71 04 <8b> 83 58 01 00 00 f7 d0 8b 04 90 eb 09 89 c2 83 fa 01 7e d2 31 EIP: [<c05a99da>] neigh_stat_seq_next+0x26/0x3f SS:ESP 0068:c587bf1c Signed-off-by: Alexey Dobriyan <adobriyan@sw.ru> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-11-07[IPV6]: Consolidate the ip cork destruction in ip6_output.cPavel Emelyanov
The ip6_push_pending_frames and ip6_flush_pending_frames do the same things to flush the sock's cork. Move this into a separate function and save ~100 bytes from the .text Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-11-07[IPV4]: Consolidate the ip cork destruction in ip_output.cPavel Emelyanov
The ip_push_pending_frames and ip_flush_pending_frames do the same things to flush the sock's cork. Move this into a separate function and save ~80 bytes from the .text Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-11-07[NETFILTER]: ebt_arp: fix --arp-gratuitous matching dependence on ↵Bart De Schuymer
--arp-ip-{src,dst} Fix --arp-gratuitous matching dependence on --arp-ip-{src,dst} Signed-off-by: Bart De Schuymer <bdschuym@pandora.be> Signed-off-by: Lutz Preßler <Lutz.Pressler@SerNet.DE> Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-11-07[NETFILTER]: nf_sockopts list head cleanupAlexey Dobriyan
Code is using knowledge that nf_sockopt_ops::list list_head is first field in structure by using casts. Switch to list_for_each_entry() itetators while I am at it. 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>
2007-11-07[NETFILTER]: remove unneeded rcu_dereference() callsPatrick McHardy
As noticed by Paul McKenney, the rcu_dereference calls in the init path of NAT modules are unneeded, remove them. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>