The check for the _PAGE_RO bit in get_user_pages_fast for write==1 is the wrong way around. It must not be set for the fast path. Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Implement get_user_pages_fast without locking in the fastpath on s390. Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>