The patch titled
Subject: mm/mempolicy: avoid the fallthrough with MPOLD_BIND in mpol_misplaced.
has been added to the -mm mm-unstable branch. Its filename is
mm-mempolicy-avoid-the-fallthrough-with-mpold_bind-in-mpol_misplaced.patch
This patch will shortly appear at
https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/mm-mempolicy-avoid-the-fallthrough-with-mpold_bind-in-mpol_misplaced.patch
This patch will later appear in the mm-unstable branch at
git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
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------------------------------------------------------
From: Donet Tom <donettom@xxxxxxxxxxxxx>
Subject: mm/mempolicy: avoid the fallthrough with MPOLD_BIND in mpol_misplaced.
Date: Sat, 17 Feb 2024 01:31:34 -0600
We will update MPOL_PREFERRED_MANY in the follow up patch. This change
is required for that.
Link: https://lkml.kernel.org/r/bf7e6779f842fb65cf7bb9b2c617feb2af271cb7.1708097962.git.donettom@xxxxxxxxxxxxx
Signed-off-by: Aneesh Kumar K.V (IBM) <aneesh.kumar@xxxxxxxxxx>
Signed-off-by: Donet Tom <donettom@xxxxxxxxxxxxx>
Cc: Andrea Arcangeli <aarcange@xxxxxxxxxx>
Cc: Ben Widawsky <ben.widawsky@xxxxxxxxx>
Cc: Dan Williams <dan.j.williams@xxxxxxxxx>
Cc: Dave Hansen <dave.hansen@xxxxxxxxxxxxxxx>
Cc: Feng Tang <feng.tang@xxxxxxxxx>
Cc: "Huang, Ying" <ying.huang@xxxxxxxxx>
Cc: Hugh Dickins <hughd@xxxxxxxxxx>
Cc: Ingo Molnar <mingo@xxxxxxxxxx>
Cc: Johannes Weiner <hannes@xxxxxxxxxxx>
Cc: Kefeng Wang <wangkefeng.wang@xxxxxxxxxx>
Cc: Matthew Wilcox (Oracle) <willy@xxxxxxxxxxxxx>
Cc: Mel Gorman <mgorman@xxxxxxx>
Cc: Michal Hocko <mhocko@xxxxxxxxxx>
Cc: Mike Kravetz <mike.kravetz@xxxxxxxxxx>
Cc: Peter Zijlstra (Intel) <peterz@xxxxxxxxxxxxx>
Cc: Rik van Riel <riel@xxxxxxxxxxx>
Cc: Suren Baghdasaryan <surenb@xxxxxxxxxx>
Cc: Vlastimil Babka <vbabka@xxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/mempolicy.c | 10 +++++++++-
1 file changed, 9 insertions(+), 1 deletion(-)
--- a/mm/mempolicy.c~mm-mempolicy-avoid-the-fallthrough-with-mpold_bind-in-mpol_misplaced
+++ a/mm/mempolicy.c
@@ -2769,7 +2769,15 @@ int mpol_misplaced(struct folio *folio,
break;
goto out;
}
- fallthrough;
+
+ if (node_isset(curnid, pol->nodes))
+ goto out;
+ z = first_zones_zonelist(
+ node_zonelist(thisnid, GFP_HIGHUSER),
+ gfp_zone(GFP_HIGHUSER),
+ &pol->nodes);
+ polnid = zone_to_nid(z->zone);
+ break;
case MPOL_PREFERRED_MANY:
/*
_
Patches currently in -mm which might be from donettom@xxxxxxxxxxxxx are
mm-mempolicy-use-the-already-fetched-local-variable.patch
mm-mempolicy-avoid-the-fallthrough-with-mpold_bind-in-mpol_misplaced.patch
mm-numa_balancing-allow-migrate-on-protnone-reference-with-mpol_preferred_many-policy.patch
