Eric Lee / smarc-fsl-linux-kernel

10 Mar, 2011

1 commit

08 Jan, 2011

1 commit

  • 881fe4bdc   tracing: remove duplicate null-pointer check in skb tracepoint ... Browse Code »

    The check for NULL skb in the kfree_skb trace event is a duplicate from the
    check already done in its only caller, kfree_skb(). Remove this duplicate check.

    Signed-off-by: Mathieu Desnoyers
    LKML-Reference:
    Acked-by: Neil Horman
    Acked-by: David S. Miller
    CC: Steven Rostedt
    CC: Frederic Weisbecker
    CC: Ingo Molnar
    CC: Thomas Gleixner
    CC: Zhaolei
    Signed-off-by: Steven Rostedt

    Mathieu Desnoyers
     

07 Sep, 2010

1 commit

  • 07dc22e72   skb: Add tracepoints to freeing skb ... Browse Code »

    This patch adds tracepoint to consume_skb and add trace_kfree_skb
    before __kfree_skb in skb_free_datagram_locked and net_tx_action.
    Combinating with tracepoint on dev_hard_start_xmit, we can check
    how long it takes to free transmitted packets. And using it, we can
    calculate how many packets driver had at that time. It is useful when
    a drop of transmitted packet is a problem.

    sshd-6828 [000] 112689.258154: consume_skb: skbaddr=f2d99bb8

    Signed-off-by: Koki Sanagi
    Acked-by: David S. Miller
    Acked-by: Neil Horman
    Cc: Mathieu Desnoyers
    Cc: Kaneshige Kenji
    Cc: Izumo Taku
    Cc: Kosaki Motohiro
    Cc: Lai Jiangshan
    Cc: Scott Mcmillan
    Cc: Steven Rostedt
    Cc: Eric Dumazet
    LKML-Reference:
    Signed-off-by: Frederic Weisbecker

    Koki Sanagi
     

14 Aug, 2009

1 commit

  • e9b3cc1b3   net: skb ftracer - add tracepoint to skb_copy_datagram_iovec (v3) ... Browse Code »

    skb allocation / cosumption tracer - Add consumption tracepoint

    This patch adds a tracepoint to skb_copy_datagram_iovec, which is called each
    time a userspace process copies a frame from a socket receive queue to a user
    space buffer. It allows us to hook in and examine each sk_buff that the system
    receives on a per-socket bases, and can be use to compile a list of which skb's
    were received by which processes.

    Signed-off-by: Neil Horman

    include/trace/events/skb.h | 20 ++++++++++++++++++++
    net/core/datagram.c | 3 +++
    2 files changed, 23 insertions(+)
    Signed-off-by: David S. Miller

    Neil Horman
     

13 Jul, 2009

1 commit

  • d0b6e04a4   tracing/events: Move TRACE_SYSTEM outside of include guard ... Browse Code »

    If TRACE_INCLDUE_FILE is defined,
    will be included and compiled, otherwise it will be

    So TRACE_SYSTEM should be defined outside of #if proctection,
    just like TRACE_INCLUDE_FILE.

    Imaging this scenario:

    #include
    -> TRACE_SYSTEM == foo
    ...
    #include
    -> TRACE_SYSTEM == bar
    ...
    #define CREATE_TRACE_POINTS
    #include
    -> TRACE_SYSTEM == bar !!!

    and then bar.h will be included and compiled.

    Signed-off-by: Li Zefan
    Cc: Steven Rostedt
    Cc: Frederic Weisbecker
    LKML-Reference:
    Signed-off-by: Ingo Molnar

    Li Zefan
     

15 Apr, 2009

1 commit

  • ad8d75fff   tracing/events: move trace point headers into include/trace/events ... Browse Code »

    Impact: clean up

    Create a sub directory in include/trace called events to keep the
    trace point headers in their own separate directory. Only headers that
    declare trace points should be defined in this directory.

    Cc: Peter Zijlstra
    Cc: Thomas Gleixner
    Cc: Neil Horman
    Cc: Zhao Lei
    Cc: Eduard - Gabriel Munteanu
    Cc: Pekka Enberg
    Signed-off-by: Steven Rostedt

    Steven Rostedt