linux-kernel - Re: [PATCH 5/5] blktrace: print human-readable act

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Date:	Tue, 24 Mar 2009 10:48:14 +0100
From:	Ingo Molnar <mingo@...e.hu>
To:	Li Zefan <lizf@...fujitsu.com>
Cc:	Jens Axboe <jens.axboe@...cle.com>,
	Steven Rostedt <rostedt@...dmis.org>,
	Frederic Weisbecker <fweisbec@...il.com>,
	Arnaldo Carvalho de Melo <acme@...hat.com>,
	LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 5/5] blktrace: print human-readable act_mask


* Li Zefan <lizf@...fujitsu.com> wrote:

> > @@ -1432,9 +1456,11 @@ static ssize_t sysfs_blk_trace_attr_store(struct device *dev,
> >  	if (attr == &dev_attr_act_mask) {
> >  		if (sscanf(buf, "%llx", &value) != 1) {
> >  			/* Assume it is a list of trace category names */
> > -			value = blk_str2act_mask(buf);
> > -			if (value < 0)
> > +			value = blk_trace_str2mask(buf);
> > +			if (value < 0) {
> > +				ret = value;
> >  				goto out;
> > +			}
> 
> value is u64, it can < 0.

Ok. Small nit: please in such cases change the subject line back to 
something like:

  [PATCH 5/5, v2] blktrace: print human-readable act_mask

So that's it's easy to see which is the latest version, in thread 
view.

	Ingo
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