[PATCH 0/1] alpha: Fix pte_swp_exclusive on alpha

[Magnus Lindholm]

First noticed that swapoff fails to unmount/free a previously used swap
file or partition on alpha. swapoff fails to writeback exclusive swap
pages and gets stuck in an infinite loop trying to do so. This was
introduced in commit a172d5128706028ac07b8db709728379ecc72f6e. This
patch provides a fix for pte_swp_exclusive. Verified on UP2000 alpha.