Re: [PATCH 1/1] cls_cgroup: unify classid syntax to tc

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Hi, Thomas

Thank you for your comments.

On Thu, 11 Jun 2009 05:31:49 -0400
Thomas Graf <tgraf@xxxxxxxxxxxxx> wrote:

> Very nice, this is a big improvement.
> 
> On Thu, Jun 11, 2009 at 06:05:55PM +0900, Minoru Usui wrote:
> > +static int get_tc_classid(u32 *classid, const char *str)
> 
> Maybe make this return u32?

Yes, you are right.
I'll fix it.

> 
> >  {
> > -	return cgrp_cls_state(cgrp)->classid;
> > +	u32 maj, min;
> > +	char *p;
> > +
> > +	/* check "0" for reset request */
> > +	if (!strcmp(str, "0")) {
> > +		*classid = 0;
> > +		return 0;
> > +	}
> > +
> > +	/* parse major number */
> > +	maj = simple_strtoul(str, &p, 16);
> > +	if (p == str) {
> > +		maj = 0;
> > +		if (*p != ':')
> > +			return -EINVAL;
> > +	}
> > +
> > +	/* parse minor number */
> > +	if (*p == ':') {
> > +		if (maj >= (1<<16))
> > +			return -EINVAL;
> > +
> > +		str = p + 1;
> > +		min = simple_strtoul(str, &p, 16);
> > +		if (*p != 0)
> > +			return -EINVAL;
> > +		if (min >= (1<<16))
> > +			return -EINVAL;
> > +	} else if (*p != 0)
> > +		return -EINVAL;
> 
> What do you think about keeping things backwards compatible by
> accepting both the X:Y and XY format?
> 
> } else if (*p != 0)
> 	return strtoul(str, NULL, 0);

OK. I'll do it.
-- 
Minoru Usui <usui@xxxxxxxxxxxxxxxxx>
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