linux-kernel - Re: [PATCH 06/13] cpuset: cleanup cpuset[_can]

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Message-ID: <20130103022911.GH11220@mtj.dyndns.org>
Date:	Wed, 2 Jan 2013 21:29:11 -0500
From:	Tejun Heo <tj@...nel.org>
To:	Rusty Russell <rusty@...tcorp.com.au>
Cc:	Li Zefan <lizefan@...wei.com>, paul@...lmenage.org,
	glommer@...allels.com, containers@...ts.linux-foundation.org,
	cgroups@...r.kernel.org, peterz@...radead.org, mhocko@...e.cz,
	bsingharora@...il.com, hannes@...xchg.org,
	kamezawa.hiroyu@...fujitsu.com, linux-mm@...ck.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 06/13] cpuset: cleanup cpuset[_can]_attach()

Hello, Rusty.

On Thu, Jan 03, 2013 at 11:17:11AM +1030, Rusty Russell wrote:
> > So, I guess this currently is caught in a place which isn't here or
> > there.  I'm pretty skeptical whether it makes sense to bother about
> > static usages tho.  Can I keep them for static ones?
> 
> I didn't realize that cpuset_attach was a fastpath.  If it is, put a

It isn't a hot path.  It's just a bit nasty to have to allocate them
separately.

> static there and I'll fix turn it into a bitmap when I need to.
> Otherwise, please don't change the code in the first place.

So, the plan to drop cpumask_t is still on?  If so, I'll leave
cpumask_var_t.

Thanks.

-- 
tejun
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