linux-kernel - Re: [PATCH] slub: fix false-positive lockdep warning in free

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Message-ID: <alpine.DEB.2.10.1402041444140.11222@nuc>
Date:	Tue, 4 Feb 2014 14:44:43 -0600 (CST)
From:	Christoph Lameter <cl@...ux.com>
To:	Vladimir Davydov <vdavydov@...allels.com>
cc:	akpm@...ux-foundation.org, rientjes@...gle.com, penberg@...nel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] slub: fix false-positive lockdep warning in
 free_partial()

On Tue, 4 Feb 2014, Vladimir Davydov wrote:

> Although this cannot actually result in a race, because on cache
> destruction there should not be any concurrent frees or allocations from
> the cache, let's add spin_lock/unlock to free_partial() just to keep
> lockdep happy.

Please add a comment that says this in the source so we know why this was
added.
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