[ Upstream commit bec58f40d6c5372d812c93cc3947f3bc97440e57 ] Wire up TIF_NOTIFY_SIGNAL handling for xtensa. Thanks to Max Filippov <jcmvbkbc@gmail.com> for making the asm correct. Cc: linux-xtensa@linux-xtensa.org Signed-off-by: Jens Axboe <axboe@kernel.dk> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>