| Date | Fri, 09 Mar 2012 11:02:33 -0800 | From | Greg KH <> | Subject | [ 31/95] NOMMU: Dont need to clear vm_mm when deleting a VMA |
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3.2-stable review patch. If anyone has any objections, please let me know.
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From: David Howells <dhowells@redhat.com>
commit b94cfaf6685d691dc3fab023cf32f65e9b7be09c 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 <viro@zeniv.linux.org.uk> Signed-off-by: David Howells <dhowells@redhat.com> Acked-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
--- mm/nommu.c | 2 -- 1 file changed, 2 deletions(-)
--- a/mm/nommu.c +++ b/mm/nommu.c @@ -779,8 +779,6 @@ static void delete_vma_from_mm(struct vm if (vma->vm_next) vma->vm_next->vm_prev = vma->vm_prev; - - vma->vm_mm = NULL; } /*
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