Messages in this thread Patch in this message | | | From | Wang Nan <> | Subject | [PATCH 3/5] memory-hotplug: ia64: suitable memory should go to ZONE_MOVABLE | Date | Fri, 18 Jul 2014 15:56:01 +0800 |
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This patch add new memory to ZONE_MOVABLE if movable zone is setup and lower than newly added memory for ia64.
Signed-off-by: Wang Nan <wangnan0@huawei.com> --- arch/ia64/mm/init.c | 7 +++++++ 1 file changed, 7 insertions(+)
diff --git a/arch/ia64/mm/init.c b/arch/ia64/mm/init.c index 25c3502..d81c916 100644 --- a/arch/ia64/mm/init.c +++ b/arch/ia64/mm/init.c @@ -625,6 +625,7 @@ int arch_add_memory(int nid, u64 start, u64 size) { pg_data_t *pgdat; struct zone *zone; + struct zone *movable_zone; unsigned long start_pfn = start >> PAGE_SHIFT; unsigned long nr_pages = size >> PAGE_SHIFT; int ret; @@ -632,6 +633,12 @@ int arch_add_memory(int nid, u64 start, u64 size) pgdat = NODE_DATA(nid); zone = pgdat->node_zones + ZONE_NORMAL; + movable_zone = pgdat->node_zones + ZONE_MOVABLE; + if (!zone_is_empty(movable_zone)) + if (zone_spans_pfn(movable_zone, start_pfn) || + (zone_end_pfn(movable_zone) <= start_pfn)) + zone = movable_zone; + ret = __add_pages(nid, zone, start_pfn, nr_pages); if (ret) -- 1.8.4
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