1. 28 Feb, 2008 1 commit
  2. 28 Jan, 2008 4 commits
  3. 21 Jan, 2008 1 commit
  4. 07 Nov, 2007 1 commit
    • Eric Dumazet's avatar
      [NET]: Define infrastructure to keep 'inuse' changes in an efficent SMP/NUMA way. · 286ab3d4
      Eric Dumazet authored
      "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
      - 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 /
      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: default avatarEric Dumazet <dada1@cosmosbay.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
  5. 15 Oct, 2007 1 commit
    • Pavel Emelyanov's avatar
      [INET]: Collect frag queues management objects together · 7eb95156
      Pavel Emelyanov authored
      There are some objects that are common in all the places
      which are used to keep track of frag queues, they are:
       * hash table
       * LRU list
       * rw lock
       * rnd number for hash function
       * the number of queues
       * the amount of memory occupied by queues
       * secret timer
      Move all this stuff into one structure (struct inet_frags)
      to make it possible use them uniformly in the future. Like
      with the previous patch this mostly consists of hunks like
      -    write_lock(&ipfrag_lock);
      +    write_lock(&ip4_frags.lock);
      To address the issue with exporting the number of queues and
      the amount of memory occupied by queues outside the .c file
      they are declared in, I introduce a couple of helpers.
      Signed-off-by: default avatarPavel Emelyanov <xemul@openvz.org>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
  6. 10 Oct, 2007 2 commits
    • David L Stevens's avatar
      [IPV6]: Add ICMPMsgStats MIB (RFC 4293) [rev 2] · 14878f75
      David L Stevens authored
      Background: RFC 4293 deprecates existing individual, named ICMP
      type counters to be replaced with the ICMPMsgStatsTable. This table
      includes entries for both IPv4 and IPv6, and requires counting of all
      ICMP types, whether or not the machine implements the type.
      These patches "remove" (but not really) the existing counters, and
      replace them with the ICMPMsgStats tables for v4 and v6.
      It includes the named counters in the /proc places they were, but gets the
      values for them from the new tables. It also counts packets generated
      from raw socket output (e.g., OutEchoes, MLD queries, RA's from
      radvd, etc).
      1) create icmpmsg_statistics mib
      2) create icmpv6msg_statistics mib
      3) modify existing counters to use these
      4) modify /proc/net/snmp to add "IcmpMsg" with all ICMP types
              listed by number for easy SNMP parsing
      5) modify /proc/net/snmp printing for "Icmp" to get the named data
              from new counters.
      [new to 2nd revision]
      6) support per-interface ICMP stats
      7) use common macro for per-device stat macros
      Signed-off-by: default avatarDavid L Stevens <dlstevens@us.ibm.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
    • Eric W. Biederman's avatar
      [NET]: Make /proc/net per network namespace · 457c4cbc
      Eric W. Biederman authored
      This patch makes /proc/net per network namespace.  It modifies the global
      variables proc_net and proc_net_stat to be per network namespace.
      The proc_net file helpers are modified to take a network namespace argument,
      and all of their callers are fixed to pass &init_net for that argument.
      This ensures that all of the /proc/net files are only visible and
      usable in the initial network namespace until the code behind them
      has been updated to be handle multiple network namespaces.
      Making /proc/net per namespace is necessary as at least some files
      in /proc/net depend upon the set of network devices which is per
      network namespace, and even more files in /proc/net have contents
      that are relevant to a single network namespace.
      Signed-off-by: default avatarEric W. Biederman <ebiederm@xmission.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
  7. 28 Apr, 2007 1 commit
  8. 25 Apr, 2007 6 commits
  9. 14 Feb, 2007 1 commit
    • Tim Schmielau's avatar
      [PATCH] remove many unneeded #includes of sched.h · cd354f1a
      Tim Schmielau authored
      After Al Viro (finally) succeeded in removing the sched.h #include in module.h
      recently, it makes sense again to remove other superfluous sched.h includes.
      There are quite a lot of files which include it but don't actually need
      anything defined in there.  Presumably these includes were once needed for
      macros that used to live in sched.h, but moved to other header files in the
      course of cleaning it up.
      To ease the pain, this time I did not fiddle with any header files and only
      removed #includes from .c-files, which tend to cause less trouble.
      Compile tested against 2.6.20-rc2 and 2.6.20-rc2-mm2 (with offsets) on alpha,
      arm, i386, ia64, mips, powerpc, and x86_64 with allnoconfig, defconfig,
      allmodconfig, and allyesconfig as well as a few randconfigs on x86_64 and all
      configs in arch/arm/configs on arm.  I also checked that no new warnings were
      introduced by the patch (actually, some warnings are removed that were emitted
      by unnecessarily included header files).
      Signed-off-by: default avatarTim Schmielau <tim@physik3.uni-rostock.de>
      Acked-by: default avatarRussell King <rmk+kernel@arm.linux.org.uk>
      Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
      Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
  10. 12 Feb, 2007 1 commit
  11. 11 Feb, 2007 1 commit
  12. 02 Dec, 2006 2 commits
    • Gerrit Renker's avatar
      [NET]: Supporting UDP-Lite (RFC 3828) in Linux · ba4e58ec
      Gerrit Renker authored
      This is a revision of the previously submitted patch, which alters
      the way files are organized and compiled in the following manner:
      	* UDP and UDP-Lite now use separate object files
      	* source file dependencies resolved via header files
      	* order of inclusion files in udp.c/udplite.c adapted
      [NET/IPv4]: Support for the UDP-Lite protocol (RFC 3828)
      This patch adds support for UDP-Lite to the IPv4 stack, provided as an
      extension to the existing UDPv4 code:
              * generic routines are all located in net/ipv4/udp.c
              * UDP-Lite specific routines are in net/ipv4/udplite.c
              * MIB/statistics support in /proc/net/snmp and /proc/net/udplite
              * shared API with extensions for partial checksum coverage
      [NET/IPv6]: Extension for UDP-Lite over IPv6
      It extends the existing UDPv6 code base with support for UDP-Lite
      in the same manner as per UDPv4. In particular,
              * UDPv6 generic and shared code is in net/ipv6/udp.c
              * UDP-Litev6 specific extensions are in net/ipv6/udplite.c
              * MIB/statistics support in /proc/net/snmp6 and /proc/net/udplite6
              * support for IPV6_ADDRFORM
              * aligned the coding style of protocol initialisation with af_inet6.c
              * made the error handling in udpv6_queue_rcv_skb consistent;
                to return `-1' on error on all error cases
              * consolidation of shared code
      [NET]: UDP-Lite Documentation and basic XFRM/Netfilter support
      The UDP-Lite patch further provides
              * API documentation for UDP-Lite
              * basic xfrm support
              * basic netfilter support for IPv4 and IPv6 (LOG target)
      Signed-off-by: default avatarGerrit Renker <gerrit@erg.abdn.ac.uk>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
    • YOSHIFUJI Hideaki's avatar
      [IPV6]: Per-interface statistics support. · a11d206d
      YOSHIFUJI Hideaki authored
      For IP MIB (RFC4293).
      Signed-off-by: default avatarYOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
  13. 30 Jun, 2006 1 commit
  14. 11 Apr, 2006 1 commit
  15. 05 Feb, 2006 1 commit
  16. 25 Oct, 2005 1 commit
  17. 16 Apr, 2005 1 commit
    • Linus Torvalds's avatar
      Linux-2.6.12-rc2 · 1da177e4
      Linus Torvalds authored
      Initial git repository build. I'm not bothering with the full history,
      even though we have it. We can create a separate "historical" git
      archive of that later if we want to, and in the meantime it's about
      3.2GB when imported into git - space that would just make the early
      git days unnecessarily complicated, when we don't have a lot of good
      infrastructure for it.
      Let it rip!