linux-kernel - [RFC PATCH 2/5] mm, page_alloc: introduce alloc_pages_exact_node

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Message-Id: <1372840460-5571-3-git-send-email-iamjoonsoo.kim@lge.com>
Date:	Wed,  3 Jul 2013 17:34:17 +0900
From:	Joonsoo Kim <iamjoonsoo.kim@....com>
To:	Andrew Morton <akpm@...ux-foundation.org>
Cc:	Mel Gorman <mgorman@...e.de>, David Rientjes <rientjes@...gle.com>,
	Glauber Costa <glommer@...il.com>,
	Johannes Weiner <hannes@...xchg.org>,
	KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com>,
	Rik van Riel <riel@...hat.com>,
	Hugh Dickins <hughd@...gle.com>,
	Minchan Kim <minchan@...nel.org>,
	Jiang Liu <jiang.liu@...wei.com>, linux-mm@...ck.org,
	linux-kernel@...r.kernel.org, Joonsoo Kim <js1304@...il.com>,
	Joonsoo Kim <iamjoonsoo.kim@....com>
Subject: [RFC PATCH 2/5] mm, page_alloc: introduce alloc_pages_exact_node_multiple()

Signed-off-by: Joonsoo Kim <iamjoonsoo.kim@....com>

diff --git a/include/linux/gfp.h b/include/linux/gfp.h
index 8bfa87b..f8cde28 100644
--- a/include/linux/gfp.h
+++ b/include/linux/gfp.h
@@ -327,6 +327,16 @@ static inline struct page *alloc_pages_exact_node(int nid, gfp_t gfp_mask,
 	return __alloc_pages(gfp_mask, order, node_zonelist(nid, gfp_mask));
 }
 
+static inline struct page *alloc_pages_exact_node_multiple(int nid,
+		gfp_t gfp_mask, unsigned long *nr_pages, struct page **pages)
+{
+	VM_BUG_ON(nid < 0 || nid >= MAX_NUMNODES || !node_online(nid));
+
+	return __alloc_pages_nodemask(gfp_mask, 0,
+				node_zonelist(nid, gfp_mask), NULL,
+				nr_pages, pages);
+}
+
 #ifdef CONFIG_NUMA
 extern struct page *alloc_pages_current(gfp_t gfp_mask, unsigned order);
 
-- 
1.7.9.5

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