The patch titled
Subject: fs/proc/task_mmu: add display flag for VM_MAYOVERLAY
has been added to the -mm mm-hotfixes-unstable branch. Its filename is
fs-proc-task_mmu-add-display-flag-for-vm_mayoverlay.patch
This patch will shortly appear at
https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/fs-proc-task_mmu-add-display-flag-for-vm_mayoverlay.patch
This patch will later appear in the mm-hotfixes-unstable branch at
git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
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------------------------------------------------------
From: Anshuman Khandual <anshuman.khandual@xxxxxxx>
Subject: fs/proc/task_mmu: add display flag for VM_MAYOVERLAY
Date: Thu, 8 Feb 2024 14:18:05 +0530
VM_UFFD_MISSING flag is mutually exclussive with VM_MAYOVERLAY flag as
they both use the same bit position i.e 0x00000200 in the vm_flags. Let's
update show_smap_vma_flags() to display the correct flags depending on
CONFIG_MMU.
Link: https://lkml.kernel.org/r/20240208084805.1252337-1-anshuman.khandual@xxxxxxx
Fixes: b6b7a8faf05c ("mm/nommu: don't use VM_MAYSHARE for MAP_PRIVATE mappings")
Signed-off-by: Anshuman Khandual <anshuman.khandual@xxxxxxx>
Reviewed-by: David Hildenbrand <david@xxxxxxxxxx>
Cc: <stable@xxxxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
fs/proc/task_mmu.c | 4 ++++
1 file changed, 4 insertions(+)
--- a/fs/proc/task_mmu.c~fs-proc-task_mmu-add-display-flag-for-vm_mayoverlay
+++ a/fs/proc/task_mmu.c
@@ -681,7 +681,11 @@ static void show_smap_vma_flags(struct s
[ilog2(VM_HUGEPAGE)] = "hg",
[ilog2(VM_NOHUGEPAGE)] = "nh",
[ilog2(VM_MERGEABLE)] = "mg",
+#ifdef CONFIG_MMU
[ilog2(VM_UFFD_MISSING)]= "um",
+#else
+ [ilog2(VM_MAYOVERLAY)] = "ov",
+#endif /* CONFIG_MMU */
[ilog2(VM_UFFD_WP)] = "uw",
#ifdef CONFIG_ARM64_MTE
[ilog2(VM_MTE)] = "mt",
_
Patches currently in -mm which might be from anshuman.khandual@xxxxxxx are
fs-proc-task_mmu-add-display-flag-for-vm_mayoverlay.patch
mm-cma-dont-treat-bad-input-arguments-for-cma_alloc-as-its-failure.patch
mm-cma-drop-config_cma_debug.patch
mm-cma-make-max_cma_areas-=-config_cma_areas.patch
mm-cma-add-sysfs-file-release_pages_success.patch
