Eric Lee / linux-smarc-t335x-v3.2

17 Dec, 2007

1 commit

  • 215f7b08f   [AX25]: Locking dependencies fix in ax25_disconnect(). ... Browse Code »

    Bernard Pidoux reported these lockdep warnings:

    [ INFO: possible irq lock inversion dependency detected ]
    2.6.23.1 #1
    ---------------------------------------------------------
    fpac/4933 just changed the state of lock:
    (slock-AF_AX25){--..}, at: [] ax25_disconnect+0x46/0xaf
    [ax25]
    but this lock was taken by another, soft-irq-safe lock in the past:
    (ax25_list_lock){-+..}

    and interrupts could create inverse lock ordering between them.
    [...]

    [ INFO: inconsistent lock state ]
    2.6.23.1 #1
    ---------------------------------
    inconsistent {in-softirq-W} -> {softirq-on-W} usage.
    ax25_call/4005 [HC0[0]:SC0[0]:HE1:SE1] takes:
    (slock-AF_AX25){-+..}, at: [] ax25_disconnect+0x46/0xaf [ax25]
    [...]

    This means slock-AF_AX25 could be taken both from softirq and process
    context with softirqs enabled, so it's endangered itself, but also makes
    ax25_list_lock vulnerable. It was not 100% verified if the real lockup
    can happen, but this fix isn't very costly and looks safe anyway.
    (It was tested by Bernard with 2.6.23.9 and 2.6.24-rc5 kernels.)

    Reported_by: Bernard Pidoux
    Tested_by: Bernard Pidoux
    Signed-off-by: Jarek Poplawski
    Signed-off-by: David S. Miller

    Jarek Poplawski
     

26 Apr, 2007

1 commit

  • c1d2bbe1c   [SK_BUFF]: Introduce skb_reset_network_header(skb) ... Browse Code »

    For the common, open coded 'skb->nh.raw = skb->data' operation, so that we can
    later turn skb->nh.raw into a offset, reducing the size of struct sk_buff in
    64bit land while possibly keeping it as a pointer on 32bit.

    This one touches just the most simple case, next will handle the slightly more
    "complex" cases.

    Signed-off-by: Arnaldo Carvalho de Melo
    Signed-off-by: David S. Miller

    Arnaldo Carvalho de Melo
     

15 Feb, 2007

1 commit

  • cd354f1ae   [PATCH] remove many unneeded #includes of sched.h ... Browse Code »

    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: Tim Schmielau
    Acked-by: Russell King
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Tim Schmielau
     

11 Feb, 2007

1 commit

30 Aug, 2005

2 commits

  • c752f0739   [TCP]: Move the tcp sock states to net/tcp_states.h ... Browse Code »

    Lots of places just needs the states, not even linux/tcp.h, where this
    enum was, needs it.

    This speeds up development of the refactorings as less sources are
    rebuilt when things get moved from net/tcp.h.

    Signed-off-by: Arnaldo Carvalho de Melo
    Signed-off-by: David S. Miller

    Arnaldo Carvalho de Melo
     
  • 8728b834b   [NET]: Kill skb->list ... Browse Code »

    Remove the "list" member of struct sk_buff, as it is entirely
    redundant. All SKB list removal callers know which list the
    SKB is on, so storing this in sk_buff does nothing other than
    taking up some space.

    Two tricky bits were SCTP, which I took care of, and two ATM
    drivers which Francois Romieu fixed
    up.

    Signed-off-by: David S. Miller
    Signed-off-by: Francois Romieu

    David S. Miller
     

22 Apr, 2005

1 commit

17 Apr, 2005

1 commit

  • 1da177e4c   Linux-2.6.12-rc2 ... Browse Code »

    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!

    Linus Torvalds