The quilt patch titled
Subject: mm: write-lock VMAs before removing them from VMA tree
has been removed from the -mm tree. Its filename was
mm-write-lock-vmas-before-removing-them-from-vma-tree.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: Suren Baghdasaryan <surenb@xxxxxxxxxx>
Subject: mm: write-lock VMAs before removing them from VMA tree
Date: Mon, 27 Feb 2023 09:36:17 -0800
Write-locking VMAs before isolating them ensures that page fault handlers
don't operate on isolated VMAs.
[surenb@xxxxxxxxxx: mm/nommu: remove unnecessary VMA locking]
Link: https://lkml.kernel.org/r/20230301190457.1498985-1-surenb@xxxxxxxxxx
Link: https://lore.kernel.org/all/Y%2F8CJQGNuMUTdLwP@localhost/
Link: https://lkml.kernel.org/r/20230227173632.3292573-19-surenb@xxxxxxxxxx
Signed-off-by: Suren Baghdasaryan <surenb@xxxxxxxxxx>
Cc: David Hildenbrand <david@xxxxxxxxxx>
Cc: Hyeonggon Yoo <42.hyeyoo@xxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/mmap.c | 1 +
1 file changed, 1 insertion(+)
--- a/mm/mmap.c~mm-write-lock-vmas-before-removing-them-from-vma-tree
+++ a/mm/mmap.c
@@ -2270,6 +2270,7 @@ int split_vma(struct vma_iterator *vmi,
static inline int munmap_sidetree(struct vm_area_struct *vma,
struct ma_state *mas_detach)
{
+ vma_start_write(vma);
mas_set_range(mas_detach, vma->vm_start, vma->vm_end - 1);
if (mas_store_gfp(mas_detach, vma, GFP_KERNEL))
return -ENOMEM;
_
Patches currently in -mm which might be from surenb@xxxxxxxxxx are
