[merged mm-stable] mm-memory-return-enomem-for-page-table-allocation-failure-in-insert_pages.patch removed from -mm tree

[merged mm-stable] mm-memory-return-enomem-for-page-table-allocation-failure-in-insert_pages.patch removed from -mm tree

[Andrew Morton]

The quilt patch titled
     Subject: mm/memory: return -ENOMEM for page-table allocation failure in insert_pages()
has been removed from the -mm tree.  Its filename was
     mm-memory-return-enomem-for-page-table-allocation-failure-in-insert_pages.patch

This patch was dropped because it was merged into the mm-stable branch
of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

------------------------------------------------------
From: Avi Weiss <thnkslprpt@gmail.com>
Subject: mm/memory: return -ENOMEM for page-table allocation failure in insert_pages()
Date: Sat, 29 Aug 2026 20:11:13 +0300

walk_to_pmd() returns NULL only when p4d_alloc(), pud_alloc(), or
pmd_alloc() fails.  These are page-table allocation failures, but
insert_pages() currently reports them as -EFAULT.

Return -ENOMEM instead, consistent with the subsequent pte_alloc() failure
and with the single-page insert_page() path, which reports failure of the
same page-table allocation chain as -ENOMEM.

Address and range validation failures in vm_insert_pages() continue to
return -EFAULT.  Keep the later -EFAULT return for pte_offset_map_lock(),
which is not an allocation failure.

Link: https://lore.kernel.org/9d990c3ed43608e674d4b12a8c221a09fd200f49.1788022178.git.thnkslprpt@gmail.com
Signed-off-by: Avi Weiss <thnkslprpt@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Acked-by: David Hildenbrand (Arm) <david@kernel.org>
Reviewed-by: Lorenzo Stoakes (ARM) <ljs@kernel.org>
Cc: Liam R. Howlett <liam@infradead.org>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Mike Rapoport <rppt@kernel.org>
Cc: Suren Baghdasaryan <surenb@google.com>
Cc: Vlastimil Babka <vbabka@kernel.org>
---

 mm/memory.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/mm/memory.c~mm-memory-return-enomem-for-page-table-allocation-failure-in-insert_pages
+++ a/mm/memory.c
@@ -2569,7 +2569,7 @@ static int insert_pages(struct vm_area_s
 more:
 	pmd = walk_to_pmd(mm, addr);
 	if (!pmd) {
-		err = -EFAULT;
+		err = -ENOMEM;
 		goto out;
 	}
 
_

Patches currently in -mm which might be from thnkslprpt@gmail.com are