linux-kernel - Re: [PATCH 15/16] tracing: Add fields format definition for syscall events

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Message-ID: <4A8CA1EF.6000305@cn.fujitsu.com>
Date:	Thu, 20 Aug 2009 09:07:59 +0800
From:	Li Zefan <lizf@...fujitsu.com>
To:	Frederic Weisbecker <fweisbec@...il.com>
CC:	Masami Hiramatsu <mhiramat@...hat.com>,
	Ingo Molnar <mingo@...e.hu>,
	LKML <linux-kernel@...r.kernel.org>,
	Lai Jiangshan <laijs@...fujitsu.com>,
	Steven Rostedt <rostedt@...dmis.org>,
	Peter Zijlstra <peterz@...radead.org>,
	Mathieu Desnoyers <mathieu.desnoyers@...ymtl.ca>,
	Jiaying Zhang <jiayingz@...gle.com>,
	Martin Bligh <mbligh@...gle.com>,
	Jason Baron <jbaron@...hat.com>
Subject: Re: [PATCH 15/16] tracing: Add fields format definition for	syscall
 events

> Yeah, I have yet to fix this, that because syscalls that have no parameters
> raise a small bug in the return value of trace_seq_printf() while printing
> their format, returning 0 as if the buffer was full and lost some bits.
> 
> However, It's possible that the last patches from Li fix this, since he did
> a total/better refactoring of the format definition for syscall events.
> 
> I'll check this,

I was not aware of this bug, and the bug is still there, but it's
easy to fix and I've fixed it. Will send out the patch soon.

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