On Thu, Mar 23, 2017 at 11:10:38AM -0400, Mike Snitzer wrote: > Not sure why you've split out the dm-kcopyd patch, likely best to just > fold it into the previous dm support patch. The dm-kcopyd patch switches to using WRITE_ZEROES instead of write same for dm as user of these interfaces. The one before just adds WRITE_ZEROES support to dm.