[PATCH v2 5/7] memory-hotplug: ppc: suitable memory should go to ZONE_MOVABLE

Wang Nan
2014-07-21T03:46:40Z

This patch introduces zone_for_memory() to arch_add_memory() on powerpc
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>
---
arch/powerpc/mm/mem.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/arch/powerpc/mm/mem.c b/arch/powerpc/mm/mem.c
index 2c8e90f..e0f7a18 100644
--- a/arch/powerpc/mm/mem.c
+++ b/arch/powerpc/mm/mem.c
@@ -128,7 +128,8 @@ int arch_add_memory(int nid, u64 start, u64 size)
return -EINVAL;

/* this should work for most non-highmem platforms */
- zone = pgdata->node_zones;
+ zone = pgdata->node_zones +
+ zone_for_memory(nid, start, size, 0);

return __add_pages(nid, zone, start_pfn, nr_pages);
}
--
1.8.4