+ mm-page_alloc-add-support-for-initializing-pageblock-as-isolated-fix.patch added to mm-new branch

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

The patch titled
     Date: Mon, 2 Jun 2025 21:51:25 -0400
has been added to the -mm mm-new branch.  Its filename is
     mm-page_alloc-add-support-for-initializing-pageblock-as-isolated-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_alloc-add-support-for-initializing-pageblock-as-isolated-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.

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------------------------------------------------------
From: Zi Yan <ziy@nvidia.com>
Date: Mon, 2 Jun 2025 21:51:25 -0400
Subject: fixup: make init_pageblock_migratetype() set right migratetype

when page_group_by_mobility_disabled is 1.

Link: https://lkml.kernel.org/r/56683268-92C8-4FAE-9BAF-645C35227F24@nvidia.com
Signed-off-by: Zi Yan <ziy@nvidia.com>
Cc: Baolin Wang <baolin.wang@linux.alibaba.com>
Cc: Brendan Jackman <jackmanb@google.com>
Cc: David Hildenbrand <david@redhat.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Kirill A. Shuemov <kirill.shutemov@linux.intel.com>
Cc: Mel Gorman <mgorman@techsingularity.net>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Oscar Salvador <osalvador@suse.de>
Cc: Richard Chang <richardycc@google.com>
Cc: Suren Baghdasaryan <surenb@google.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 mm/page_alloc.c |    4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

--- a/mm/page_alloc.c~mm-page_alloc-add-support-for-initializing-pageblock-as-isolated-fix
+++ a/mm/page_alloc.c
@@ -548,12 +548,14 @@ void __meminit init_pageblock_migratetyp
 					  enum migratetype migratetype,
 					  bool isolate)
 {
-	unsigned long flags = migratetype;
+	unsigned long flags;
 
 	if (unlikely(page_group_by_mobility_disabled &&
 		     migratetype < MIGRATE_PCPTYPES))
 		migratetype = MIGRATE_UNMOVABLE;
 
+	flags = migratetype;
+
 #ifdef CONFIG_MEMORY_ISOLATION
 	if (migratetype == MIGRATE_ISOLATE) {
 		VM_WARN_ONCE(
_

Patches currently in -mm which might be from ziy@nvidia.com are

mm-page_alloc-pageblock-flags-functions-clean-up.patch
mm-page_isolation-make-page-isolation-a-standalone-bit.patch
mm-page_alloc-add-support-for-initializing-pageblock-as-isolated.patch
mm-page_alloc-add-support-for-initializing-pageblock-as-isolated-fix.patch
mm-page_isolation-remove-migratetype-from-move_freepages_block_isolate.patch
mm-page_isolation-remove-migratetype-from-undo_isolate_page_range.patch
mm-page_isolation-remove-migratetype-parameter-from-more-functions.patch