linux-kernel - Re: [PATCH v2 1/4] mm: declare VMA flags by bit

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Message-ID: <b0418f22-5d35-400d-9285-eeea9e34d3ae@lucifer.local>
Date: Fri, 14 Nov 2025 15:35:11 +0000
From: Lorenzo Stoakes <lorenzo.stoakes@...cle.com>
To: Andrew Morton <akpm@...ux-foundation.org>
Cc: Muchun Song <muchun.song@...ux.dev>, Oscar Salvador <osalvador@...e.de>,
        David Hildenbrand <david@...hat.com>,
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Subject: Re: [PATCH v2 1/4] mm: declare VMA flags by bit

Hi Andrew,

In typical fashion nommu has caused a problem. Sorry to send a couple in
quick succession here, but nommu will nommu... :)

Thanks, Lorenzo

----8<----
>From b14b98a2e78a06c6a3ff790bc2c188be94202e30 Mon Sep 17 00:00:00 2001
From: Lorenzo Stoakes <lorenzo.stoakes@...cle.com>
Date: Fri, 14 Nov 2025 15:32:14 +0000
Subject: [PATCH] nommu fixup

Signed-off-by: Lorenzo Stoakes <lorenzo.stoakes@...cle.com>
---
 include/linux/mm.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/include/linux/mm.h b/include/linux/mm.h
index ad000c472bd5..9824211d3d8e 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -409,6 +409,7 @@ enum {
 #define VM_UFFD_MISSING	INIT_VM_FLAG(UFFD_MISSING)
 #else
 #define VM_UFFD_MISSING	VM_NONE
+#define VM_MAYOVERLAY	INIT_VM_FLAG(MAYOVERLAY)
 #endif
 #define VM_PFNMAP	INIT_VM_FLAG(PFNMAP)
 #define VM_MAYBE_GUARD	INIT_VM_FLAG(MAYBE_GUARD)
--
2.51.0