linux-kernel - [PATCH] SLAB : Dont allocate empty shared caches

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Date:	Wed, 21 Mar 2007 08:21:55 +0100
From:	Eric Dumazet <dada1@...mosbay.com>
To:	Andrew Morton <akpm@...ux-foundation.org>
CC:	Christoph Lameter <christoph@...eter.com>,
	Andi Kleen <andi@...stfloor.org>,
	linux kernel <linux-kernel@...r.kernel.org>
Subject: [PATCH] SLAB : Dont allocate empty shared caches

We can avoid allocating empty shared caches and avoid unecessary check of 
cache->limit. We save some memory. We avoid bringing into CPU cache unecessary 
cache lines.

All accesses to l3->shared are already checking NULL pointers so this patch is 
safe.

Signed-off-by: Eric Dumazet <dada1@...mosbay.com>

View attachment "dont_allocate_empty_arraycache.patch" of type "text/plain" (1613 bytes)