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@huawei.com>
Cc: Zhang Yanfei <zhangyanfei@cn.fujitsu.com>
Cc: Dave Hansen <dave.hansen@intel.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Yinghai Lu <yinghai@kernel.org>
Cc: "Mel Gorman" <mgorman@suse.de>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: "Luck, Tony" <tony.luck@intel.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Chris Metcalf <cmetcalf@tilera.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

diff --git a/arch/sh/mm/init.c b/arch/sh/mm/init.c
index 2d089fe2cba910153e8d9bf1db927fd18ca9a83d..2790b6a64157f79663fe5232afe9f857e6d81cb7 100644 (file)
--- 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);