LU-6215 client: cancel_dirty_page revival

LU-6215 client: cancel_dirty_page revival

For linux kernel version 4.2 we see the return of the
function cancel_dirty_page() except it does not take
the second argument anymore. This happened in linux
commit 11f81becca04bb7d2826a9b65bb8d27b0a1bb543.

Change-Id: If3156dddcc2f104f128ce5b76ed9839d97054448
Signed-off-by: James Simmons <uja.ornl@yahoo.com>
Reviewed-on: http://review.whamcloud.com/16069
Reviewed-by: frank zago <fzago@cray.com>
Reviewed-by: Bob Glossman <bob.glossman@intel.com>
Tested-by: Jenkins
Tested-by: Maloo <hpdd-maloo@intel.com>
Reviewed-by: Oleg Drokin <oleg.drokin@intel.com>