From a2fdfd0080a3b15afa81f8495f8b82eb167441a5 Mon Sep 17 00:00:00 2001
From: Lorenzo Stoakes <ljs@kernel.org>
Date: Sat, 11 Jul 2026 19:45:05 +0100
Subject: mm: introduce vma_get_page_prot() and use it

There's a large number of vm_get_page_prot(vma->vm_flags) invocations.
Make life easier by introducing vma_get_page_prot() parameterised by the
VMA.

This also makes converting vm_get_page_prot() to vma_flags_t easier.

Also update the userland VMA tests to reflect the change.

No functional change intended.

Link: https://lore.kernel.org/20260711-b4-vma-flags-mm-v2-8-0fa2357d5431@kernel.org
Signed-off-by: Lorenzo Stoakes <ljs@kernel.org>
Acked-by: Zi Yan <ziy@nvidia.com>
Acked-by: Jani Nikula <jani.nikula@intel.com> # for i915
Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de>	[DRM]
Reviewed-by: Vlastimil Babka (SUSE) <vbabka@kernel.org>
Cc: Baolin Wang <baolin.wang@linux.alibaba.com>
Cc: Barry Song <baohua@kernel.org>
Cc: Christian Brauner <brauner@kernel.org>
Cc: Dave Airlie <airlied@gmail.com>
Cc: David Hildenbrand <david@kernel.org>
Cc: Dev Jain <dev.jain@arm.com>
Cc: Jan Kara <jack@suse.cz>
Cc: Jann Horn <jannh@google.com>
Cc: Lance Yang <lance.yang@linux.dev>
Cc: Mike Rapoport <rppt@kernel.org>
Cc: Muchun Song <muchun.song@linux.dev>
Cc: Nico Pache <npache@redhat.com>
Cc: Oscar Salvador <osalvador@suse.de>
Cc: Pedro Falcato <pfalcato@suse.de>
Cc: Suren Baghdasaryan <surenb@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---
 tools/testing/vma/include/dup.h | 5 +++++
 1 file changed, 5 insertions(+)

(limited to 'tools/testing/vma/include')

diff --git a/tools/testing/vma/include/dup.h b/tools/testing/vma/include/dup.h
index 73a637d9472e..ba02017eca2e 100644
--- a/tools/testing/vma/include/dup.h
+++ b/tools/testing/vma/include/dup.h
@@ -1575,3 +1575,8 @@ static inline void vma_assert_can_modify(struct vm_area_struct *vma)
 	if (vma_is_attached(vma))
 		vma_assert_write_locked(vma);
 }
+
+static inline pgprot_t vma_get_page_prot(const struct vm_area_struct *vma)
+{
+	return vma_flags_to_page_prot(vma->flags);
+}
-- 
cgit