netdev - Re: [RFC][PATCH 5/6] slab: kmem_cache_objs_to

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Message-Id: <1164913399.6588.158.camel@twins>
Date:	Thu, 30 Nov 2006 20:03:19 +0100
From:	Peter Zijlstra <a.p.zijlstra@...llo.nl>
To:	Christoph Lameter <clameter@....com>
Cc:	netdev@...r.kernel.org, linux-mm@...ck.org,
	David Miller <davem@...emloft.net>
Subject: Re: [RFC][PATCH 5/6] slab: kmem_cache_objs_to_pages()

On Thu, 2006-11-30 at 11:06 -0800, Christoph Lameter wrote:
> On Thu, 30 Nov 2006, Peter Zijlstra wrote:
> 
> > Right, perhaps my bad in wording the intent; the needed information is
> > how many more pages would I need to grow the slab with in order to store
> > so many new object.
> 
> Would you not have to take objects currently available in 
> caches into account? If you are short on memory then a flushing of all the 
> caches may give you the memory you need (especially on a system with a 
> large number of processors).

Sure, but this gives a safe upper bound.

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