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NOMMU: Don't need to clear vm_mm when deleting a VMA

commit b94cfaf upstream.

Don't clear vm_mm in a deleted VMA as it's unnecessary and might
conceivably break the filesystem or driver VMA close routine.

Reported-by: Al Viro <>
Signed-off-by: David Howells <>
Acked-by: Al Viro <>
Signed-off-by: Linus Torvalds <>
Signed-off-by: Greg Kroah-Hartman <>
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commit ce6e3def616ad1e22443df7fc8bdaa3384cf0575 1 parent 3516a8a
David Howells authored gregkh committed
Showing with 0 additions and 2 deletions.
  1. +0 −2  mm/nommu.c
2  mm/nommu.c
@@ -779,8 +779,6 @@ static void delete_vma_from_mm(struct vm_area_struct *vma)
if (vma->vm_next)
vma->vm_next->vm_prev = vma->vm_prev;
- vma->vm_mm = NULL;
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