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commitf481bb32d6upstream. This reverts commitb8995a1841. Ard managed to reproduce the dm-crypt corruption problem and got to the bottom of it, so re-apply the problematic patch in preparation for fixing things properly. Cc: stable@vger.kernel.org Signed-off-by: Will Deacon <will@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>