linux-kernel - [PATCH 1/3] mm/mempolicy: Use the already fetched local variable

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Message-Id: <9c3f7b743477560d1c5b12b8c111a584a2cc92ee.1708097962.git.donettom@linux.ibm.com>
Date: Sat, 17 Feb 2024 01:31:33 -0600
From: Donet Tom <donettom@...ux.ibm.com>
To: Andrew Morton <akpm@...ux-foundation.org>, linux-mm@...ck.org,
        linux-kernel@...r.kernel.org
Cc: Aneesh Kumar <aneesh.kumar@...nel.org>, Huang Ying <ying.huang@...el.com>,
        Dave Hansen <dave.hansen@...ux.intel.com>,
        Mel Gorman <mgorman@...e.de>, Ben Widawsky <ben.widawsky@...el.com>,
        Feng Tang <feng.tang@...el.com>, Michal Hocko <mhocko@...nel.org>,
        Andrea Arcangeli <aarcange@...hat.com>,
        Peter Zijlstra <peterz@...radead.org>, Ingo Molnar <mingo@...hat.com>,
        Rik van Riel <riel@...riel.com>, Johannes Weiner <hannes@...xchg.org>,
        Matthew Wilcox <willy@...radead.org>,
        Mike Kravetz <mike.kravetz@...cle.com>,
        Vlastimil Babka <vbabka@...e.cz>,
        Dan Williams <dan.j.williams@...el.com>,
        Hugh Dickins <hughd@...gle.com>,
        Kefeng Wang <wangkefeng.wang@...wei.com>,
        Suren Baghdasaryan <surenb@...gle.com>
Subject: [PATCH 1/3] mm/mempolicy: Use the already fetched local variable

Avoid doing a per cpu read and use the local variable thisnid. IMHO
this also makes the code more readable.

Signed-off-by: Aneesh Kumar K.V (IBM) <aneesh.kumar@...nel.org>
Signed-off-by: Donet Tom <donettom@...ux.ibm.com>
---
 mm/mempolicy.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mm/mempolicy.c b/mm/mempolicy.c
index 10a590ee1c89..8478574c000c 100644
--- a/mm/mempolicy.c
+++ b/mm/mempolicy.c
@@ -2526,7 +2526,7 @@ int mpol_misplaced(struct folio *folio, struct vm_area_struct *vma,
 		if (node_isset(curnid, pol->nodes))
 			goto out;
 		z = first_zones_zonelist(
-				node_zonelist(numa_node_id(), GFP_HIGHUSER),
+				node_zonelist(thisnid, GFP_HIGHUSER),
 				gfp_zone(GFP_HIGHUSER),
 				&pol->nodes);
 		polnid = zone_to_nid(z->zone);
-- 
2.39.3