linux-kernel - Re: [PATCH 6/9] block: add block_touch

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Date:	Wed, 11 Jan 2012 12:42:01 -0500
From:	Steven Rostedt <rostedt@...dmis.org>
To:	Tejun Heo <tj@...nel.org>
Cc:	axboe@...nel.dk, mingo@...hat.com, fweisbec@...il.com,
	teravest@...gle.com, slavapestov@...gle.com, ctalbott@...gle.com,
	dhsharp@...gle.com, linux-kernel@...r.kernel.org,
	winget@...gle.com, namhyung@...il.com
Subject: Re: [PATCH 6/9] block: add block_touch_buffer tracepoint

On Tue, 2012-01-10 at 10:28 -0800, Tejun Heo wrote:
>  
>  #define CREATE_TRACE_POINTS
>  #include <trace/events/block.h>
> diff --git a/include/linux/buffer_head.h b/include/linux/buffer_head.h
> index 458f497..245caed 100644
> --- a/include/linux/buffer_head.h
> +++ b/include/linux/buffer_head.h
> @@ -13,6 +13,7 @@
>  #include <linux/pagemap.h>
>  #include <linux/wait.h>
>  #include <linux/atomic.h>
> +#include <trace/events/block.h>

trace/events/x.h in a header can cause issue if this header is ever
included in another trace/events/x.h header. I think I'll need to write
a patch that allows this, but it wont be pretty.


-- Steve


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