+ mm-vmscan-add-a-helper-to-identify-file-backed-executable-folios.patch added to mm-new branch

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

The patch titled
     Subject: mm: vmscan: add a helper to identify file-backed executable folios
has been added to the -mm mm-new branch.  Its filename is
     mm-vmscan-add-a-helper-to-identify-file-backed-executable-folios.patch

This patch will shortly appear at
     https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/mm-vmscan-add-a-helper-to-identify-file-backed-executable-folios.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: Baolin Wang <baolin.wang@linux.alibaba.com>
Subject: mm: vmscan: add a helper to identify file-backed executable folios
Date: Mon, 20 Jul 2026 19:12:01 +0800

Add a helper to identify file-backed executable folios to avoid duplicate
code.

No functional changes.

Link: https://lore.kernel.org/2ee74f9f98ac45a2f0db0ceb018e086bdb671d17.1784509721.git.baolin.wang@linux.alibaba.com
Signed-off-by: Baolin Wang <baolin.wang@linux.alibaba.com>
Acked-by: Johannes Weiner <hannes@cmpxchg.org>
Reviewed-by: Axel Rasmussen <axelrasmussen@google.com>
Reviewed-by: David Hildenbrand (Arm) <david@kernel.org>
Reviewed-by: Kairui Song <kasong@tencent.com>
Cc: Barry Song <baohua@kernel.org>
Cc: Harry Yoo <harry@kernel.org>
Cc: Jann Horn <jannh@google.com>
Cc: Lance Yang <lance.yang@linux.dev>
Cc: Liam R. Howlett <liam@infradead.org>
Cc: Lorenzo Stoakes <ljs@kernel.org>
Cc: Michal Hocko <mhocko@kernel.org>
Cc: Rik van Riel <riel@surriel.com>
Cc: Shakeel Butt <shakeel.butt@linux.dev>
Cc: Vlastimil Babka <vbabka@kernel.org>
Cc: Wei Xu <weixugc@google.com>
Cc: Yuanchu Xie <yuanchu@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 mm/vmscan.c |   10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

--- a/mm/vmscan.c~mm-vmscan-add-a-helper-to-identify-file-backed-executable-folios
+++ a/mm/vmscan.c
@@ -268,6 +268,12 @@ static int sc_swappiness(struct scan_con
 }
 #endif
 
+static inline bool is_exec_file_folio(const struct folio *folio,
+		const vma_flags_t *vma_flags)
+{
+	return vma_flags_test(vma_flags, VMA_EXEC_BIT) && folio_is_file_lru(folio);
+}
+
 static void set_task_reclaim_state(struct task_struct *task,
 				   struct reclaim_state *rs)
 {
@@ -914,7 +920,7 @@ static enum folio_references folio_check
 		/*
 		 * Activate file-backed executable folios after first usage.
 		 */
-		if (vma_flags_test(&vma_flags, VMA_EXEC_BIT) && folio_is_file_lru(folio))
+		if (is_exec_file_folio(folio, &vma_flags))
 			return FOLIOREF_ACTIVATE;
 
 		return FOLIOREF_KEEP;
@@ -2117,7 +2123,7 @@ static void shrink_active_list(unsigned
 			 * IO, plus JVM can create lots of anon VM_EXEC folios,
 			 * so we ignore them here.
 			 */
-			if (vma_flags_test(&vma_flags, VMA_EXEC_BIT) && folio_is_file_lru(folio)) {
+			if (is_exec_file_folio(folio, &vma_flags)) {
 				nr_rotated += folio_nr_pages(folio);
 				list_add(&folio->lru, &l_active);
 				continue;
_

Patches currently in -mm which might be from baolin.wang@linux.alibaba.com are

mm-vmscan-remove-the-redundant-folioref_reclaim_clean-logic.patch
mm-vmscan-convert-folio_referenced-to-use-vma_flags_t.patch
mm-vmscan-add-a-helper-to-identify-file-backed-executable-folios.patch
mm-mglru-promote-mapped-executable-folios-after-first-usage.patch