linux-kernel - Re: [PATCH v8] mm: make lru_add_drain

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Message-Id: <20130814140339.4489fd3efc7de3d0a5b21c4e@linux-foundation.org>
Date:	Wed, 14 Aug 2013 14:03:39 -0700
From:	Andrew Morton <akpm@...ux-foundation.org>
To:	Tejun Heo <tj@...nel.org>
Cc:	Chris Metcalf <cmetcalf@...era.com>, linux-kernel@...r.kernel.org,
	linux-mm@...ck.org, Thomas Gleixner <tglx@...utronix.de>,
	Frederic Weisbecker <fweisbec@...il.com>,
	Cody P Schafer <cody@...ux.vnet.ibm.com>
Subject: Re: [PATCH v8] mm: make lru_add_drain_all() selective

On Wed, 14 Aug 2013 16:50:29 -0400 Tejun Heo <tj@...nel.org> wrote:

> > > +	for_each_cpu(cpu, &has_work)
> > 
> > for_each_online_cpu()?
> 
> That would lead to flushing work items which aren't used and may not
> have been initialized yet, no?

doh, I confused for_each_cpu with for_each_possible_cpu.  Dumb name.
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