+ mm-page_owner-add-numa-node-filter-with-nodelist-support-fix.patch added to mm-new branch

+ mm-page_owner-add-numa-node-filter-with-nodelist-support-fix.patch added to mm-new branch

[Andrew Morton]

The patch titled
     Subject: mm-page_owner-add-numa-node-filter-with-nodelist-support-fix
has been added to the -mm mm-new branch.  Its filename is
     mm-page_owner-add-numa-node-filter-with-nodelist-support-fix.patch

This patch will shortly appear at
     https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/mm-page_owner-add-numa-node-filter-with-nodelist-support-fix.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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*** Remember to use Documentation/process/submit-checklist.rst when testing your code ***

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and is updated there most days

------------------------------------------------------
From: Andrew Morton <akpm@linux-foundation.org>
Subject: mm-page_owner-add-numa-node-filter-with-nodelist-support-fix
Date: Fri Apr 24 01:08:46 PM PDT 2026

remove READ_ONCE/WRITE_ONCE of nodemask_t

It triggers compile-time assertions.

Cc: Brendan Jackman <jackmanb@google.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Suren Baghdasaryan <surenb@google.com>
Cc: Vlastimil Babka <vbabka@kernel.org>
Cc: Zhen Ni <zhen.ni@easystack.cn>
Cc: Zi Yan <ziy@nvidia.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 mm/page_owner.c |    6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

--- a/mm/page_owner.c~mm-page_owner-add-numa-node-filter-with-nodelist-support-fix
+++ a/mm/page_owner.c
@@ -732,7 +732,7 @@ read_page_owner(struct file *file, char
 			continue;
 
 		/* NUMA node filter using bitmask */
-		mask = READ_ONCE(owner_filter.nid_mask);
+		mask = owner_filter.nid_mask;
 		if (!nodes_empty(mask)) {
 			int nid = page_to_nid(page);
 
@@ -1049,7 +1049,7 @@ static ssize_t nid_filter_write(struct f
 		goto out_free;
 	}
 
-	WRITE_ONCE(owner_filter.nid_mask, mask);
+	owner_filter.nid_mask = mask;
 	ret = count;
 
 out_free:
@@ -1059,7 +1059,7 @@ out_free:
 
 static int nid_filter_show(struct seq_file *m, void *v)
 {
-	nodemask_t mask = READ_ONCE(owner_filter.nid_mask);
+	nodemask_t mask = owner_filter.nid_mask;
 
 	if (nodes_empty(mask))
 		seq_puts(m, "-1\n");
_

Patches currently in -mm which might be from akpm@linux-foundation.org are

mm-page_alloc-fix-initialization-of-tags-of-the-huge-zero-folio-with-init_on_free-fix.patch
mm-page_owner-add-numa-node-filter-with-nodelist-support-fix.patch
proc-rewrite-next_tgid-fix.patch