[GIT PULL] Block core followup bits for -rc1

[Jens Axboe <axboe@fb.com>]

Hi Linus,

A few minor (but important) fixes for blk-mq for the -rc1 window.

- Hot removal potential oops fix for single queue devices. From me.

- Two merged patches in late May meant that we accidentally lost a fix
  for freeing an active queue. Fix that up. From me.

- A change of the blk_mq_tag_to_rq() API, passing in blk_mq_tags, to
  make life considerably easier for scsi-mq. From me.

- A schedule-while-atomic fix from Ming Lei, which would hit if the tag
  space was exhausted.

- Missing __percpu annotation in one place in blk-mq. Found by the magic
  Wu compile bot due to code being moved around by the previous patch,
  but it's actually an older issue. From Ming Lei.

- Clearing of tag of a flush request at end_io time. From Ming Lei.

Please pull!


  git://git.kernel.dk/linux-block.git for-linus


----------------------------------------------------------------
Jens Axboe (3):
      blk-mq: handle NULL req return from blk_map_request in single queue mode
      blk-mq: fix regression from commit 624dbe475416
      blk-mq: let blk_mq_tag_to_rq() take blk_mq_tags as the main parameter

Ming Lei (4):
      blk-mq: move blk_mq_get_ctx/blk_mq_put_ctx to mq private header
      blk-mq: fix schedule from atomic context
      blk-mq: fix sparse warning on missed __percpu annotation
      block: mq flush: clear flush_rq's tag in flush_end_io()

 block/blk-flush.c                 |  2 +-
 block/blk-mq-tag.c                | 48 ++++++++++++++--------
 block/blk-mq-tag.h                |  2 +-
 block/blk-mq.c                    | 83 +++++++++++++++++++--------------------
 block/blk-mq.h                    | 45 +++++++++++++++++++++
 drivers/block/mtip32xx/mtip32xx.c |  4 +-
 include/linux/blk-mq.h            |  2 +-
 include/linux/blkdev.h            |  2 +-
 8 files changed, 123 insertions(+), 65 deletions(-)

-- 
Jens Axboe