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From: Miaohe Lin <linmiaohe@huawei.com>
To: <akpm@linux-foundation.org>
Cc: <naoya.horiguchi@nec.com>, <mhocko@suse.com>,
	<minchan@kernel.org>, <cgoldswo@codeaurora.org>,
	<linux-mm@kvack.org>, <linux-kernel@vger.kernel.org>,
	<linmiaohe@huawei.com>
Subject: [PATCH 1/3] mm/memory_hotplug: use helper zone_is_zone_device() to simplify the code
Date: Sat, 21 Aug 2021 17:42:44 +0800	[thread overview]
Message-ID: <20210821094246.10149-2-linmiaohe@huawei.com> (raw)
In-Reply-To: <20210821094246.10149-1-linmiaohe@huawei.com>

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


  reply	other threads:[~2021-08-21  9:42 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-08-21  9:42 [PATCH 0/3] Cleanup and fixups for memory hotplug Miaohe Lin
2021-08-21  9:42 ` Miaohe Lin [this message]
2021-08-23  8:20   ` [PATCH 1/3] mm/memory_hotplug: use helper zone_is_zone_device() to simplify the code HORIGUCHI NAOYA(堀口　直也)
2021-08-23  9:11   ` Oscar Salvador
2021-08-23 12:14   ` David Hildenbrand
2021-08-21  9:42 ` [PATCH 2/3] mm/memory_hotplug: fix potential permanent lru cache disable Miaohe Lin
2021-08-23  8:21   ` HORIGUCHI NAOYA(堀口　直也)
2021-08-23  9:15   ` Oscar Salvador
2021-08-23 11:13     ` Miaohe Lin
2021-08-23 12:15   ` David Hildenbrand
2021-08-21  9:42 ` [PATCH 3/3] mm/memory_hotplug: make HWPoisoned dirty swapcache pages unmovable Miaohe Lin
2021-08-23  8:26   ` HORIGUCHI NAOYA(堀口　直也)
2021-08-23  9:14     ` Miaohe Lin
2021-11-04 22:07       ` Andrew Morton

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