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Message-ID: <4A2DF91F.7030906@cn.fujitsu.com>
Date: Tue, 09 Jun 2009 13:54:39 +0800
From: Xiao Guangrong <xiaoguangrong@...fujitsu.com>
To: Ingo <mingo@...e.hu>, LKML <linux-kernel@...r.kernel.org>,
netdev@...r.kernel.org, Steven Rostedt <rostedt@...dmis.org>,
Frederic Weisbecker <fweisbec@...il.com>,
David Miller <davem@...emloft.net>,
Neil Horman <nhorman@...driver.com>
Subject: [PATCH RESEND] ftrace: change the export format of trace_kfree_skb()
Use %pf instead of %p to output the function's address, use 0x%04X instead
of %u to output the skb's protocol
Before patch:
<idle>-0 [000] 60144.542521: kfree_skb: skbaddr=de7b8240 protocol=2048 location=c1365429
<idle>-0 [000] 60164.488153: kfree_skb: skbaddr=da66f900 protocol=2048 location=c1365429
<idle>-0 [000] 60193.493933: kfree_skb: skbaddr=deaeb480 protocol=4 location=c134ec25
<idle>-0 [000] 60253.118421: kfree_skb: skbaddr=de7c4900 protocol=4 location=c134ec25
After patch:
bash-2587 [001] 97685.781173: kfree_skb: skbaddr=deb9cc00 protocol=0x0000 location=netlink_unicast
bash-2587 [000] 97686.501121: kfree_skb: skbaddr=df9bb840 protocol=0x0000 location=netlink_unicast
<idle>-0 [000] 97696.200184: kfree_skb: skbaddr=df741240 protocol=0x0800 location=ip_rcv
<idle>-0 [000] 97696.200198: kfree_skb: skbaddr=dfb3de40 protocol=0x0800 location=ip_rcv
Signed-off-by: Xiao Guangrong <xiaoguangrong@...fujitsu.com>
---
Recover the file mode of include/trace/events/skb.h
---
include/trace/events/skb.h | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/include/trace/events/skb.h b/include/trace/events/skb.h
index 1e8fabb..a58bef8 100644
--- a/include/trace/events/skb.h
+++ b/include/trace/events/skb.h
@@ -30,7 +30,7 @@ TRACE_EVENT(kfree_skb,
__entry->location = location;
),
- TP_printk("skbaddr=%p protocol=%u location=%p",
+ TP_printk("skbaddr=%p protocol=0x%04X location=%pf",
__entry->skbaddr, __entry->protocol, __entry->location)
);
--
1.6.1.2
--
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