+ mm-mglru-exclude-folios-promoted-by-aging-from-protected-in-inc_min_seq.patch added to mm-new branch

[Andrew Morton <akpm@linux-foundation.org>]

The patch titled
     Subject: mm/mglru: exclude folios promoted by aging from protected in inc_min_seq()
has been added to the -mm mm-new branch.  Its filename is
     mm-mglru-exclude-folios-promoted-by-aging-from-protected-in-inc_min_seq.patch

This patch will shortly appear at
     https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/mm-mglru-exclude-folios-promoted-by-aging-from-protected-in-inc_min_seq.patch

This patch will later appear in the mm-new branch at
    git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

Note, mm-new is a provisional staging ground for work-in-progress
patches, and acceptance into mm-new is a notification for others take
notice and to finish up reviews.  Please do not hesitate to respond to
review feedback and post updated versions to replace or incrementally
fixup patches in mm-new.

The mm-new branch of mm.git is not included in linux-next

If a few days of testing in mm-new is successful, the patch will me moved
into mm.git's mm-unstable branch, which is included in linux-next

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------------------------------------------------------
From: "Barry Song (Xiaomi)" <baohua@kernel.org>
Subject: mm/mglru: exclude folios promoted by aging from protected in inc_min_seq()
Date: Wed, 2 Sep 2026 07:24:18 +0800

Some folios may have been promoted during aging, so don't count them as
protected, similar to sort_folio().

Link: https://lore.kernel.org/20260901232421.40157-5-baohua@kernel.org
Signed-off-by: Barry Song (Xiaomi) <baohua@kernel.org>
Reviewed-by: Baoquan He <baoquan.he@linux.dev>
Tested-by: Xueyuan Chen <xueyuan.chen21@gmail.com>
Reviewed-by: Ridong Chen <ridong.chen@linux.dev>
Reviewed-by: Lian Wang <lianux.mm@gmail.com>
Cc: Axel Rasmussen <axelrasmussen@google.com>
Cc: Baolin Wang <baolin.wang@linux.alibaba.com>
Cc: David Hildenbrand <david@kernel.org>
Cc: David Stevens <stevensd@chromium.org>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Kairui Song <kasong@tencent.com>
Cc: Kunwu Chan <kunwu.chan@gmail.com>
Cc: Lorenzo Stoakes <ljs@kernel.org>
Cc: Michal Hocko <mhocko@kernel.org>
Cc: Shakeel Butt <shakeel.butt@linux.dev>
Cc: Wei Xu <weixugc@google.com>
Cc: Yuanchu Xie <yuanchu@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 mm/vmscan.c |   16 ++++++++--------
 1 file changed, 8 insertions(+), 8 deletions(-)

--- a/mm/vmscan.c~mm-mglru-exclude-folios-promoted-by-aging-from-protected-in-inc_min_seq
+++ a/mm/vmscan.c
@@ -3962,17 +3962,17 @@ static bool inc_min_seq(struct lruvec *l
 			if (gen_increased) {
 				delta += nr_pages;
 				list_move_tail(&folio->lru, &lrugen->folios[new_gen][type][zone]);
+
+				/* don't count the workingset being lazily promoted */
+				if (refs + workingset != BIT(LRU_REFS_WIDTH) + 1) {
+					int tier = lru_tier_from_refs(refs, workingset);
+
+					WRITE_ONCE(lrugen->protected[hist][type][tier],
+						   lrugen->protected[hist][type][tier] + nr_pages);
+				}
 			} else {
 				list_move(&folio->lru, &lrugen->folios[new_gen][type][zone]);
 			}
-			/* don't count the workingset being lazily promoted */
-			if (refs + workingset != BIT(LRU_REFS_WIDTH) + 1) {
-				int tier = lru_tier_from_refs(refs, workingset);
-
-				WRITE_ONCE(lrugen->protected[hist][type][tier],
-					   lrugen->protected[hist][type][tier] + nr_pages);
-			}
-
 			if (!--remaining)
 				break;
 		}
_

Patches currently in -mm which might be from baohua@kernel.org are

mm-mglru-make-retry-logic-explicit-in-isolate_folios.patch
mm-vmscan-avoid-pointless-large-folio-splits-without-swap.patch
mm-mglru-separate-folio-generation-update-from-lru-accounting.patch
mm-mglru-batch-update-lrugen-nr_pages-in-inc_min_seq.patch
mm-mglru-enhance-cold-hot-inversion-handling-in-inc_min_seq.patch
mm-mglru-exclude-folios-promoted-by-aging-from-protected-in-inc_min_seq.patch
mm-mglru-make-lru-folio-prefetch-helper-an-inline-function.patch
mm-mglru-move-folios-from-oldest-gen-to-second-oldest-gen-from-head-to-tail.patch
mm-mglru-batch-move-folios-to-the-second-oldest-gens-lru.patch