linux-kernel - [RFC v1 12/19] mm, mempolicy: use first_node in mpol

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Message-Id: <20191121151811.49742-13-fly@kernel.page>
Date:   Thu, 21 Nov 2019 23:18:04 +0800
From:   Pengfei Li <fly@...nel.page>
To:     akpm@...ux-foundation.org
Cc:     mgorman@...hsingularity.net, mhocko@...nel.org, vbabka@...e.cz,
        cl@...ux.com, iamjoonsoo.kim@....com, guro@...com,
        linux-kernel@...r.kernel.org, linux-mm@...ck.org,
        Pengfei Li <fly@...nel.page>
Subject: [RFC v1 12/19] mm, mempolicy: use first_node in mpol_misplaced()

In mpol_misplaced(), we want to access first node instead of
first zone, so use first_node_nlist instead of first_zone_nlist.

Signed-off-by: Pengfei Li <fly@...nel.page>
---
 mm/mempolicy.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/mm/mempolicy.c b/mm/mempolicy.c
index 66184add1627..8fd962762e46 100644
--- a/mm/mempolicy.c
+++ b/mm/mempolicy.c
@@ -2404,7 +2404,6 @@ static void sp_free(struct sp_node *n)
 int mpol_misplaced(struct page *page, struct vm_area_struct *vma, unsigned long addr)
 {
 	struct mempolicy *pol;
-	struct zone *zone;
 	int curnid = page_to_nid(page);
 	unsigned long pgoff;
 	int thiscpu = raw_smp_processor_id();
@@ -2440,11 +2439,10 @@ int mpol_misplaced(struct page *page, struct vm_area_struct *vma, unsigned long
 		 */
 		if (node_isset(curnid, pol->v.nodes))
 			goto out;
-		zone = first_zone_nlist_nodemask(
+		polnid = first_node_nlist_nodemask(
 				node_nodelist(numa_node_id(), GFP_HIGHUSER),
 				gfp_zone(GFP_HIGHUSER),
 				&pol->v.nodes);
-		polnid = zone_to_nid(zone);
 		break;
 
 	default:
-- 
2.23.0