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

merged mm-stable Andrew Morton 1 participant 1 message Oct 7

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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 <[email protected]>
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.

---

 mm/memory.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
mm/memory.c renamed from mm/memory.c~mm-memory-return-enomem-for-page-table-allocation-failure-in-insert_pages +1 -1
@@ -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 [email protected] are