linux-kernel - [PATCH v3 14/14] mm: memory_hotplug: memory hotremove supports thp migration

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Date:   Sun,  5 Feb 2017 11:12:52 -0500
From:   Zi Yan <zi.yan@...t.com>
To:     linux-kernel@...r.kernel.org, linux-mm@...ck.org,
        kirill.shutemov@...ux.intel.com
Cc:     akpm@...ux-foundation.org, minchan@...nel.org, vbabka@...e.cz,
        mgorman@...hsingularity.net, n-horiguchi@...jp.nec.com,
        khandual@...ux.vnet.ibm.com, zi.yan@...rutgers.edu
Subject: [PATCH v3 14/14] mm: memory_hotplug: memory hotremove supports thp migration

From: Naoya Horiguchi <n-horiguchi@...jp.nec.com>

This patch enables thp migration for memory hotremove.

Signed-off-by: Naoya Horiguchi <n-horiguchi@...jp.nec.com>
---
ChangeLog v1->v2:
- base code switched from alloc_migrate_target to new_node_page()
---
 mm/memory_hotplug.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/mm/memory_hotplug.c b/mm/memory_hotplug.c
index 9cb4c83151a8..e988ea15cc99 100644
--- a/mm/memory_hotplug.c
+++ b/mm/memory_hotplug.c
@@ -1593,10 +1593,10 @@ static struct page *new_node_page(struct page *page, unsigned long private,
 		gfp_mask |= __GFP_HIGHMEM;
 
 	if (!nodes_empty(nmask))
-		new_page = __alloc_pages_nodemask(gfp_mask, 0,
+		new_page = __alloc_pages_nodemask(gfp_mask, order,
 					node_zonelist(nid, gfp_mask), &nmask);
 	if (!new_page)
-		new_page = __alloc_pages(gfp_mask, 0,
+		new_page = __alloc_pages(gfp_mask, order,
 					node_zonelist(nid, gfp_mask));
 
 	if (new_page && order == hpage_order(page))
-- 
2.11.0