From ec3ab083a7a004282ee374bdaeb0aa603521b8eb Mon Sep 17 00:00:00 2001 From: Christoph Lameter Date: Wed, 9 May 2012 10:09:56 -0500 Subject: slub: Get rid of the node field The node field is always page_to_nid(c->page). So its rather easy to replace. Note that there maybe slightly more overhead in various hot paths due to the need to shift the bits from page->flags. However, that is mostly compensated for by a smaller footprint of the kmem_cache_cpu structure (this patch reduces that to 3 words per cache) which allows better caching. Signed-off-by: Christoph Lameter Signed-off-by: Pekka Enberg --- include/linux/slub_def.h | 1 - 1 file changed, 1 deletion(-) (limited to 'include/linux/slub_def.h') diff --git a/include/linux/slub_def.h b/include/linux/slub_def.h index c2f8c8bc56ed..ebdcf4ba42ee 100644 --- a/include/linux/slub_def.h +++ b/include/linux/slub_def.h @@ -48,7 +48,6 @@ struct kmem_cache_cpu { unsigned long tid; /* Globally unique transaction id */ struct page *page; /* The slab from which we are allocating */ struct page *partial; /* Partially allocated frozen slabs */ - int node; /* The node of the page (or -1 for debug) */ #ifdef CONFIG_SLUB_STATS unsigned stat[NR_SLUB_STAT_ITEMS]; #endif -- cgit v1.2.1