linux-kernel - Re: [PATCH 0/2] [GIT PULL] tracing/events/ring-buffer: block trace points and fix

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Message-ID: <4A2F1126.5010306@cn.fujitsu.com>
Date:	Wed, 10 Jun 2009 09:49:26 +0800
From:	Li Zefan <lizf@...fujitsu.com>
To:	Steven Rostedt <rostedt@...dmis.org>
CC:	Ingo Molnar <mingo@...e.hu>, linux-kernel@...r.kernel.org,
	Andrew Morton <akpm@...ux-foundation.org>,
	Frederic Weisbecker <fweisbec@...il.com>
Subject: Re: [PATCH 0/2] [GIT PULL] tracing/events/ring-buffer: block trace
 points and fix

Steven Rostedt wrote:
> On Wed, 10 Jun 2009, Li Zefan wrote:
> 
>>>>> In file included from mm/highmem.c:30:
>>>>> include/linux/blktrace_api.h:223: warning: ?struct request? declared inside parameter list
>>>>> include/linux/blktrace_api.h:223: warning: its scope is only this definition or declaration, which is probably not what you want
>>>>> include/linux/blktrace_api.h: In function ?blk_cmd_buf_len?:
>>>>> include/linux/blktrace_api.h:225: error: implicit declaration of function ?blk_pc_request?
>>>>> include/linux/blktrace_api.h:225: error: dereferencing pointer to incomplete type
>>>>> include/linux/blktrace_api.h: At top level:
>>>>> include/linux/blktrace_api.h:228: warning: ?struct request? declared inside parameter list
>>>>> include/linux/blktrace_api.h:230: warning: ?struct request? declared inside parameter list
>>>>> distcc[15629] ERROR: compile mm/highmem.c on a/32 failed
>>>>>
>>>> I've fixed it. I'll post a new version after I've done some
>>>> more building tests.
>>> Ingo,
>>>
>>> Should Li post a delta fix, or should we just rebase?
>>>
>> I thought we should rebase it, since it causes building failure which
>> might hurt bisectability.
> 
> The failure happens when CONFIG_BLOCK is not defined. How many configs 
> really do that?
> 

Ah, I see. I'll post a delta fix.

btw, I found many includes of blktrace_api.h has become unneeded since
blktrace moved to trace points. I'll post another patch to remove those
includes later.

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