linux-kernel - Re: [PATCH] export softirq_to

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Message-ID: <49FB5686.8020908@redhat.com>
Date:	Fri, 01 May 2009 13:07:34 -0700
From:	Josh Stone <jistone@...hat.com>
To:	Christoph Hellwig <hch@...radead.org>
CC:	Jason Baron <jbaron@...hat.com>, mingo@...e.hu,
	rostedt@...dmis.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] export softirq_to_name symbol

On 05/01/2009 12:50 PM, Christoph Hellwig wrote:
> On Fri, May 01, 2009 at 03:30:22PM -0400, Jason Baron wrote:
>> hi,
>>
>> In response to a user request:
>>
>>
>> Export 'softirq_to_name' so that modules using the softirq tracepoints
>> can resolve the # to a name.
> 
> Please submit it together with the module that uses it.

I'm adding SystemTap support for the format strings in the TRACE_EVENT
macros.  The softirq's TP_fast_assign uses softirq_to_name, and so that
array is needed to prepare the softirq's trace string.

So, there's no explicit reference to the symbol in SystemTap -- it's
just indirectly referenced by the tracepoint declaration.

Thanks,

Josh
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