linux-kernel - Re: [PATCH v3] slab: initialize unused alien cache entry as NULL at alloc_alien

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Message-ID: <4B444C39.3020901@linux.intel.com>
Date:	Wed, 06 Jan 2010 16:39:21 +0800
From:	Haicheng Li <haicheng.li@...ux.intel.com>
To:	Pekka Enberg <penberg@...helsinki.fi>
CC:	Christoph Lameter <cl@...ux-foundation.org>, linux-mm@...ck.org,
	Matt Mackall <mpm@...enic.com>,
	Andi Kleen <andi@...stfloor.org>,
	Eric Dumazet <eric.dumazet@...il.com>,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH v3] slab: initialize unused alien cache entry as NULL
 at 	alloc_alien_cache().

Pekka Enberg wrote:
 > I can find a trace of Andi acking the previous version of this patch
 > but I don't see an ACK from Christoph nor a revieved-by from Matt. Was
 > I not CC'd on those emails or what's going on here?
 >

Pekka,

Christoph said he will ack this patch if remove the change of MAX_NUMNODES (see below),
so I add him directly as Acked-by in this revised patch. And also, I got review
comments from Matt for v1 and changed the patch accordingly.

Is it a violation of the rule? if so, I'm sorry, actually not quite clear with the rule.



Christoph Lameter wrote:
 > On Wed, 23 Dec 2009, Haicheng Li wrote:
 >
 >> @@ -966,18 +966,16 @@ static void *alternate_node_alloc(struct kmem_cache *,
 >> gfp_t);
 >>  static struct array_cache **alloc_alien_cache(int node, int limit, gfp_t gfp)
 >>  {
 >>  	struct array_cache **ac_ptr;
 >> -	int memsize = sizeof(void *) * nr_node_ids;
 >> +	int memsize = sizeof(void *) * MAX_NUMNODES;
 >>  	int i;
 >
 > Remove this change and I will ack the patch.
 >


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