Hi all,

this series removes the QUEUE_FLAG_SCSI_PASSTHROUGH and thus the last
remaining SCSI passthrough concept from the block layer.

The changes to support pktcdvd are a bit ugly, but I can't think of
anything better (except for removing the driver entirely).
If we'd want to support packet writing today it would probably live
entirely inside the sr driver.

Changes since v2:
 - s/blk_uniqueue_id/blk_unique_id/g

Changes since v1:
 - use an extra local variable in sd_get_unique_id to make sure we
   always return the right length
 - add an enum and a comment to better document ->get_unique_id
 - spelling fixes

Diffstat:
 block/blk-core.c                   |    9 --
 block/blk-mq-debugfs.c             |    1 
 block/bsg-lib.c                    |   32 +++----
 drivers/block/Kconfig              |    2 
 drivers/block/pktcdvd.c            |    7 +
 drivers/scsi/scsi_bsg.c            |    4 
 drivers/scsi/scsi_error.c          |    2 
 drivers/scsi/scsi_ioctl.c          |    4 
 drivers/scsi/scsi_lib.c            |   27 ++++--
 drivers/scsi/scsi_scan.c           |    1 
 drivers/scsi/sd.c                  |   39 +++++++++
 drivers/scsi/sg.c                  |    4 
 drivers/scsi/sr.c                  |    2 
 drivers/scsi/st.c                  |    2 
 drivers/target/target_core_pscsi.c |    3 
 fs/nfsd/Kconfig                    |    1 
 fs/nfsd/blocklayout.c              |  158 +++++++++----------------------------
 fs/nfsd/nfs4layouts.c              |    5 -
 include/linux/blk-mq.h             |    5 -
 include/linux/blkdev.h             |   14 ++-
 include/scsi/scsi_cmnd.h           |    3 
 21 files changed, 148 insertions(+), 177 deletions(-)