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authorGreg Kroah-Hartman <gregkh@linuxfoundation.org>2022-09-05 07:59:28 +0200
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2022-09-05 07:59:28 +0200
commit35f2e3c267f07a42bc1bf08081e963b3a33e6d7c (patch)
treecab274350db930656d6ea9a0c9989f210acf4722 /fs/userfaultfd.c
parente4cdd25cafac3f61c74c146db5de7a5c9bd7b6d0 (diff)
parent7e18e42e4b280c85b76967a9106a13ca61c16179 (diff)
Merge 6.0-rc4 into tty-next
We need the tty/serial fixes in here as well. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'fs/userfaultfd.c')
-rw-r--r--fs/userfaultfd.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/fs/userfaultfd.c b/fs/userfaultfd.c
index 1c44bf75f916..175de70e3adf 100644
--- a/fs/userfaultfd.c
+++ b/fs/userfaultfd.c
@@ -1601,6 +1601,10 @@ static int userfaultfd_unregister(struct userfaultfd_ctx *ctx,
wake_userfault(vma->vm_userfaultfd_ctx.ctx, &range);
}
+ /* Reset ptes for the whole vma range if wr-protected */
+ if (userfaultfd_wp(vma))
+ uffd_wp_range(mm, vma, start, vma_end - start, false);
+
new_flags = vma->vm_flags & ~__VM_UFFD_FLAGS;
prev = vma_merge(mm, prev, start, vma_end, new_flags,
vma->anon_vma, vma->vm_file, vma->vm_pgoff,