Koki Sanagi 07dc22e729 skb: Add tracepoints to freeing skb ...

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 <sanagi.koki@jp.fujitsu.com>
Acked-by: David S. Miller <davem@davemloft.net>
Acked-by: Neil Horman <nhorman@tuxdriver.com>
Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Cc: Kaneshige Kenji <kaneshige.kenji@jp.fujitsu.com>
Cc: Izumo Taku <izumi.taku@jp.fujitsu.com>
Cc: Kosaki Motohiro <kosaki.motohiro@jp.fujitsu.com>
Cc: Lai Jiangshan <laijs@cn.fujitsu.com>
Cc: Scott Mcmillan <scott.a.mcmillan@intel.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Eric Dumazet <eric.dumazet@gmail.com>
LKML-Reference: <4C724364.50903@jp.fujitsu.com>
Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>

2010-09-07 17:51:53 +02:00

..

bkl.h

events: Harmonize event field names and print output names

2009-10-15 12:42:03 +02:00

block.h

block: remove wrappers for request type/flags

2010-08-07 18:17:56 +02:00

ext4.h

ext4: fix potential NULL dereference while tracing

2010-07-27 11:56:04 -04:00

gfpflags.h

vmscan: tracing: add trace events for kswapd wakeup, sleeping and direct reclaim

2010-08-09 20:44:59 -07:00

irq.h

irq: Add tracepoint to softirq_raise

2010-09-07 17:49:34 +02:00

jbd2.h

ext4: Add new tracepoint for jbd2_cleanup_journal_tail

2009-12-23 07:45:44 -05:00

kmem.h

vmscan: tracing: add trace events for kswapd wakeup, sleeping and direct reclaim

2010-08-09 20:44:59 -07:00

kvm.h

KVM: cleanup kvm trace

2010-05-17 12:15:22 +03:00

lock.h

tracing: Factorize lock events in a lock class

2010-05-09 13:45:35 +02:00

mce.h

perf_event, x86, mce: Use TRACE_EVENT() for MCE logging

2009-10-13 09:43:38 +02:00

module.h

Merge branch 'linus' into tracing/core

2010-04-08 10:18:47 +02:00

napi.h

napi: Convert trace_napi_poll to TRACE_EVENT

2010-09-07 17:51:01 +02:00

net.h

netdev: Add tracepoints to netdev layer

2010-09-07 17:51:33 +02:00

power.h

x86 cpufreq, perf: Make trace_power_frequency cpufreq driver independent

2010-07-22 12:08:27 +02:00

sched.h

tracing: Convert more sched events to DEFINE_EVENT

2010-06-28 17:12:50 -04:00

scsi.h

[SCSI] scsi_trace: Enhance SCSI command tracing

2010-04-30 12:52:08 -05:00

signal.h

tracing: Fix null pointer deref with SEND_SIG_FORCED

2010-06-08 23:51:32 +02:00

skb.h

skb: Add tracepoints to freeing skb

2010-09-07 17:51:53 +02:00

syscalls.h

tracing: Separate raw syscall from syscall tracer

2009-11-25 14:20:06 -05:00

timer.h

tracing: Fix timer tracing

2010-08-19 13:00:41 +02:00

vmscan.h

memcg: add mm_vmscan_memcg_isolate tracepoint

2010-08-09 20:45:03 -07:00

workqueue.h

workqueue: Add basic tracepoints to track workqueue execution

2010-08-21 13:19:37 -07:00

writeback.h

writeback: add new tracepoints

2010-08-07 18:53:56 +02:00