linux-kernel - [PATCH v2 6/7] memory-hotplug: sh: suitable memory should go to ZONE

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Date:	Mon, 21 Jul 2014 11:46:41 +0800
From:	Wang Nan <wangnan0@...wei.com>
To:	Ingo Molnar <mingo@...hat.com>, Yinghai Lu <yinghai@...nel.org>,
	"Mel Gorman" <mgorman@...e.de>,
	Andrew Morton <akpm@...ux-foundation.org>,
	"Dave Hansen" <dave.hansen@...el.com>,
	Zhang Yanfei <zhangyanfei@...fujitsu.com>
CC:	<peifeiyue@...wei.com>, <linux-mm@...ck.org>, <x86@...nel.org>,
	<linux-ia64@...r.kernel.org>, <linuxppc-dev@...ts.ozlabs.org>,
	<linux-sh@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
	<wangnan0@...wei.com>
Subject: [PATCH v2 6/7] memory-hotplug: sh: suitable memory should go to ZONE_MOVABLE

This patch introduces zone_for_memory() to arch_add_memory() on sh to
ensure new, higher memory added into ZONE_MOVABLE if movable zone has
already setup.

Signed-off-by: Wang Nan <wangnan0@...wei.com>
Cc: Zhang Yanfei <zhangyanfei@...fujitsu.com>
Cc: Dave Hansen <dave.hansen@...el.com>
---
 arch/sh/mm/init.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/arch/sh/mm/init.c b/arch/sh/mm/init.c
index 2d089fe..2790b6a 100644
--- a/arch/sh/mm/init.c
+++ b/arch/sh/mm/init.c
@@ -495,8 +495,9 @@ int arch_add_memory(int nid, u64 start, u64 size)
 	pgdat = NODE_DATA(nid);
 
 	/* We only have ZONE_NORMAL, so this is easy.. */
-	ret = __add_pages(nid, pgdat->node_zones + ZONE_NORMAL,
-				start_pfn, nr_pages);
+	ret = __add_pages(nid, pgdat->node_zones +
+			zone_for_memory(nid, start, size, ZONE_NORMAL),
+			start_pfn, nr_pages);
 	if (unlikely(ret))
 		printk("%s: Failed, __add_pages() == %d\n", __func__, ret);
 
-- 
1.8.4

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