linux-kernel - Re: [PATCH] blktrace: add FLUSH/FUA support

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Message-ID: <1307502680.1351.1.camel@leonhard>
Date:	Wed, 08 Jun 2011 12:11:20 +0900
From:	Namhyung Kim <namhyung@...il.com>
To:	Steven Rostedt <rostedt@...dmis.org>
Cc:	Jens Axboe <jaxboe@...ionio.com>, linux-kernel@...r.kernel.org,
	Frederic Weisbecker <fweisbec@...il.com>,
	Ingo Molnar <mingo@...hat.com>
Subject: Re: [PATCH] blktrace: add FLUSH/FUA support

2011-06-07 (화), 19:20 -0400, Steven Rostedt:
> On Wed, 2011-06-01 at 17:38 +0900, Namhyung Kim wrote:
> > diff --git a/include/trace/events/block.h b/include/trace/events/block.h
> > index bf366547da25..f21fea24216d 100644
> > --- a/include/trace/events/block.h
> > +++ b/include/trace/events/block.h
> > @@ -19,7 +19,7 @@ DECLARE_EVENT_CLASS(block_rq_with_error,
> >  		__field(  sector_t,	sector			)
> >  		__field(  unsigned int,	nr_sector		)
> >  		__field(  int,		errors			)
> > -		__array(  char,		rwbs,	6		)
> > +		__array(  char,		rwbs,	8		)
> >  		__dynamic_array( char,	cmd,	blk_cmd_buf_len(rq)	)
> >  	),
> >  
> > @@ -104,7 +104,7 @@ DECLARE_EVENT_CLASS(block_rq,
> >  		__field(  sector_t,	sector			)
> >  		__field(  unsigned int,	nr_sector		)
> >  		__field(  unsigned int,	bytes			)
> > -		__array(  char,		rwbs,	6		)
> > +		__array(  char,		rwbs,	8		)
> >  		__array(  char,         comm,   TASK_COMM_LEN   )
> >  		__dynamic_array( char,	cmd,	blk_cmd_buf_len(rq)	)
> >  	),
> > @@ -183,7 +183,7 @@ TRACE_EVENT(block_bio_bounce,
> >  		__field( dev_t,		dev			)
> >  		__field( sector_t,	sector			)
> >  		__field( unsigned int,	nr_sector		)
> > -		__array( char,		rwbs,	6		)
> > +		__array( char,		rwbs,	8		)
> >  		__array( char,		comm,	TASK_COMM_LEN	)
> >  	),
> >  
> 
> 
> Wouldn't it be better to replace all these "6" and "8"'s with a macro?
> Then it would be a heck of a lot easier to change in the future.
> 
> -- Steve
> 
> 

Will fix in the next version, Thanks.


-- 
Regards,
Namhyung Kim


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