linux-kernel - Re: [PATCH 10/12] sched: use {cpu|node}mask pr

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Message-ID: <20150112140015.GA25319@htj.dyndns.org>
Date:	Mon, 12 Jan 2015 09:00:15 -0500
From:	Tejun Heo <tj@...nel.org>
To:	Peter Zijlstra <peterz@...radead.org>
Cc:	akpm@...ux-foundation.org, linux-kernel@...r.kernel.org,
	Ingo Molnar <mingo@...hat.com>
Subject: Re: [PATCH 10/12] sched: use {cpu|node}mask pr_cont and seq output
 functions

On Mon, Jan 12, 2015 at 08:55:21AM -0500, Tejun Heo wrote:
> On Mon, Jan 12, 2015 at 02:50:34PM +0100, Peter Zijlstra wrote:
> > See this thread:
> >   https://lkml.org/lkml/2012/5/9/416
> >   https://lkml.org/lkml/2012/5/9/353
> > 
> > At the time I couldn't make it work :/
> 
> Dang, I was worrying about the same thing, so the compiler does
> complain about using precision with a pointer. :(

Hmmm... I think I'd just go with "%*pb" and use the width as meaning
the bitwidth.  It isn't perfect but should be a good enough compromise
especially given that fancy dynamic padding isn't something we do
often in the kernel and there's a recourse for that - printing to
string buffer and print that with %*s - which is what we need to do
right now anyway.

Thanks.

-- 
tejun
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