linux-kernel - Re: [PATCH] slab+slob: dup name string

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Date:	Tue, 22 May 2012 08:56:47 -0500 (CDT)
From:	Christoph Lameter <cl@...ux.com>
To:	David Rientjes <rientjes@...gle.com>
cc:	Glauber Costa <glommer@...allels.com>,
	linux-kernel@...r.kernel.org, cgroups@...r.kernel.org,
	linux-mm@...ck.org, Pekka Enberg <penberg@...helsinki.fi>
Subject: Re: [PATCH] slab+slob: dup name string

On Mon, 21 May 2012, David Rientjes wrote:

> This doesn't work if you kmem_cache_destroy() a cache that was created
> when g_cpucache_cpu <= EARLY, the kfree() will explode.  That never
> happens for any existing cache created in kmem_cache_init(), but this
> would introduce the first roadblock in doing so.  So you'll need some
> magic to determine whether the cache was allocated statically and suppress
> the kfree() in such a case.

Nope. Only slab management caches will be created that early. The patch is
fine as is.


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