linux-kernel - Re: [PATCH 0/3] tracing/filters: Support specifying filter hook to a TRACE

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Date:	Fri, 07 Aug 2009 09:08:44 +0800
From:	Li Zefan <lizf@...fujitsu.com>
To:	Steven Rostedt <rostedt@...dmis.org>
CC:	Frederic Weisbecker <fweisbec@...il.com>,
	Ingo Molnar <mingo@...e.hu>,
	LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 0/3] tracing/filters: Support specifying filter hook to
 a TRACE_EVENT field

>> [PATCH 1/3] tracing/filters: Add filter_type to struct ftrace_event_field
>> [PATCH 2/3] tracing/filters: Add __field_ext() to TRACE_EVENT
>> [PATCH 3/3] tracing/filters: Support filtering for char * strings
> 
> I like the first two patches, but would like to see a V2 with the updates 
> I've mentioned. The last patch I do not fully understand its purpose.
> 

The last one is wanted by Frederic in his bkl trace events patchset:

	http://lkml.org/lkml/2009/8/1/26

In that patch a ptr_str filter hook is always attached to "char *"
field, which is unsafe.

> I'll wait for V2 to pull it in.
> 
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