[merged mm-stable] mm-page_alloc-relax-gfp-warn-in-nolock-allocs.patch removed from -mm tree

The quilt patch titled
     Subject: mm/page_alloc: relax GFP WARN in nolock allocs
has been removed from the -mm tree.  Its filename was
     mm-page_alloc-relax-gfp-warn-in-nolock-allocs.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: Brendan Jackman <[email protected]>
Subject: mm/page_alloc: relax GFP WARN in nolock allocs
Date: Fri, 03 Jul 2026 12:31:46 +0000

This WARN forbids setting other flags than __GFP_ACCOUNT but we
unconditionally set the ones in gfp_nolock so they are certainly fine for
the caller to set.

There are other GFP flags that are almost certainly fine to set here;
Willy noted GFP_HIGHMEM, GFP_DMA, GFP_MOVABLE and GFP_HARDWALL.  But,
nolock allocation is rather special, so be conservative to try and ensure
we have a chance to think carefully before nontrivial new usecases arise.

Link: https://lore.kernel.org/[email protected]
Signed-off-by: Brendan Jackman <[email protected]>
Suggested-by: Matthew Wilcox <[email protected]>
Link: https://lore.kernel.org/linux-mm/[email protected]/
Reviewed-by: Suren Baghdasaryan <[email protected]>
Reviewed-by: Vlastimil Babka (SUSE) <[email protected]>
Acked-by: Harry Yoo (Oracle) <[email protected]>
Acked-by: Zi Yan <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
---

 mm/page_alloc.c |    3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

--- a/mm/page_alloc.c~mm-page_alloc-relax-gfp-warn-in-nolock-allocs
+++ a/mm/page_alloc.c
@@ -5355,7 +5355,8 @@ struct page *__alloc_frozen_pages_noprof
 		return NULL;
 
 	if (alloc_flags & ALLOC_NOLOCK) {
-		VM_WARN_ON_ONCE(gfp & ~__GFP_ACCOUNT);
+		/* Certain other flags could be supported later if needed. */
+		VM_WARN_ON_ONCE(gfp & ~(__GFP_ACCOUNT | gfp_nolock));
 		if (!alloc_nolock_allowed())
 			return NULL;
 		gfp |= gfp_nolock;
_

Patches currently in -mm which might be from [email protected] are

mm-secretmem-dont-allow-highmem-folios.patch
mm-page_alloc-dont-spin_trylock-in-nmi-on-up.patch
mm-page_alloc-dont-spin_trylock-when-disallowed-in-free_one_page.patch
mm-page_alloc-rename-fpi_trylock-fpi_nolock.patch
cgroup-cpuset-update-some-comments-about-the-page-allocator.patch
mm-page_alloc-fixup-alloc_pages_nolock_noprof-comment.patch
mm-page_alloc-remove-a-couple-of-vm_bug_onst.patch