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Subject[PATCH 1/3] mm/memory_hotplug: use helper zone_is_zone_device() to simplify the code
Date
Use helper zone_is_zone_device() to simplify the code and remove some
explicit CONFIG_ZONE_DEVICE codes.

Signed-off-by: Miaohe Lin <linmiaohe@huawei.com>
---
mm/memory_hotplug.c | 4 +---
1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/mm/memory_hotplug.c b/mm/memory_hotplug.c
index b287ff3d7229..d986d3791986 100644
--- a/mm/memory_hotplug.c
+++ b/mm/memory_hotplug.c
@@ -477,15 +477,13 @@ void __ref remove_pfn_range_from_zone(struct zone *zone,
sizeof(struct page) * cur_nr_pages);
}

-#ifdef CONFIG_ZONE_DEVICE
/*
* Zone shrinking code cannot properly deal with ZONE_DEVICE. So
* we will not try to shrink the zones - which is okay as
* set_zone_contiguous() cannot deal with ZONE_DEVICE either way.
*/
- if (zone_idx(zone) == ZONE_DEVICE)
+ if (zone_is_zone_device(zone))
return;
-#endif

clear_zone_contiguous(zone);

--
2.23.0
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