Re: [PATCH] slub: fix slab_pad_check() and SLAB_DESTROY_BY_RCU

From: Christoph Lameter
Date: Thu Sep 03 2009 - 09:48:12 EST

On Thu, 3 Sep 2009, Eric Dumazet wrote:

> on a SLAB_DESTROY_BY_RCU cache, there is no need to try to optimize this
> rcu_barrier() call, unless we want superfast reboot/halt sequences...

I stilll think that the action to quiesce rcu is something that the caller
of kmem_cache_destroy must take care of.

Could you split this into two patches: One that addresses the poison and
another that deals with rcu?

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