Commits
David Woodhouse committed 3d2257f157c
Make DISCARD_BARRIER and DISCARD_NOBARRIER writes instead of reads The commands are conceptually writes, and in the case of IDE and SCSI commands actually are writes. They were only reads because we thought that would interact better with the elevators. Now the elevators know about discard requests, that advantage no longer exists. Signed-off-by: David Woodhouse <David.Woodhouse@intel.com> Signed-off-by: Matthew Wilcox <willy@linux.intel.com> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>