On Tue, Feb 07, 2017 at 05:02:50PM +0200, Mike Rapoport wrote: > Hello Andrew, > > The patch below is an incremental fixup for concerns Andrea raised at [1]. > Please let me know if you prefer me to update the original patch and > resend. > > [1] http://www.spinics.net/lists/linux-mm/msg121267.html > > -- > Sincerely yours, > Mike. > > From 8acff65ecee8ca4cc892d35b45125c34568d1c93 Mon Sep 17 00:00:00 2001 > From: Mike Rapoport <[email protected]> > Date: Tue, 7 Feb 2017 11:50:17 +0200 > Subject: [PATCH] userfaultfd: mcopy_atomic: update cases returning -ENOENT > > As Andrea commented in [1], if the VMA covering the address was unmapped, > we may end up with a VMA a way above the faulting address. In this case we > would like to return -ENOENT to allow uffd monitor detection of VMA > removal. > > [1] http://www.spinics.net/lists/linux-mm/msg121267.html > > Signed-off-by: Mike Rapoport <[email protected]>
Reviewed-by: Andrea Arcangeli <[email protected]>
