queue_limits fixups and tidyups v3

[Christoph Hellwig <hch@lst.de>]

Hi Jens,

this series has a few fixes for the queue_limits conversion in the first
few patches and then has a bunch more cleanups and improvements in that
area.

Changes since v2:
 - export md_init_stacking_limits
 - use blk_queue_write_cache instead of open coding it
 - various spelling fixes
 - document a new paramter in ufshcd

Changes since v1:
 - remove an incorrect use of a flag on the features field
 - add a patch to switch to __bitwise annotations for features and flags
 - update a commit log

Diffstat:
 block/bio-integrity.c     |    2 
 block/blk-map.c           |    2 
 block/blk-settings.c      |   46 +++++----------------
 block/blk-sysfs.c         |   12 ++---
 block/blk.h               |    2 
 block/genhd.c             |    2 
 drivers/ata/libata-scsi.c |    3 -
 drivers/ata/pata_macio.c  |    4 -
 drivers/md/md.c           |   14 ++++--
 drivers/md/md.h           |    1 
 drivers/md/raid0.c        |    2 
 drivers/md/raid1.c        |    2 
 drivers/md/raid10.c       |    2 
 drivers/md/raid5.c        |    2 
 drivers/scsi/scsi_lib.c   |    4 -
 drivers/ufs/core/ufshcd.c |   10 ++--
 include/linux/blkdev.h    |  100 +++++++++++++++++++++++-----------------------
 17 files changed, 99 insertions(+), 111 deletions(-)