[GIT PULL] Block updates for 3.17-rc

[Jens Axboe <axboe@fb.com>]

Hi Linus,

A small collection of fixes for the current rc series. It contains:

- Two small blk-mq patches from Rob Elliott, cleaning up error case at
  init time.

- A fix from Ming Lei, fixing SG merging for blk-mq where
  QUEUE_FLAG_SG_NO_MERGE is the default.

- A dev_t minor lifetime fix from Keith, fixing an issue where a minor
  might be reused before all references to it were gone.

- Fix from Alan Stern where an unbalanced queue bypass caused SCSI some
  headaches when it does a series of add/del on devices without fully
  registrering the queue.

- A fix from me for improving the scaling of tag depth in blk-mq if we
  are short on memory.

Please pull!

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

for you to fetch changes up to a516440542afcb9647f88d12c35640baf02d07ea:

  blk-mq: scale depth and rq map appropriate if low on memory (2014-09-10 09:02:03 -0600)

----------------------------------------------------------------
Alan Stern (1):
      Block: fix unbalanced bypass-disable in blk_register_queue

Jens Axboe (1):
      blk-mq: scale depth and rq map appropriate if low on memory

Keith Busch (1):
      block: Fix dev_t minor allocation lifetime

Ming Lei (1):
      blk-merge: fix blk_recount_segments

Robert Elliott (2):
      blk-mq: pass along blk_mq_alloc_tag_set return values
      blk-mq: cleanup after blk_mq_init_rq_map failures

 block/blk-merge.c                 | 17 +++++---
 block/blk-mq.c                    | 91 +++++++++++++++++++++++++++++++--------
 block/blk-sysfs.c                 |  6 ++-
 block/genhd.c                     | 24 ++++++-----
 block/partition-generic.c         |  2 +-
 drivers/block/mtip32xx/mtip32xx.c |  1 -
 drivers/block/null_blk.c          | 29 +++++++++----
 7 files changed, 123 insertions(+), 47 deletions(-)

-- 
Jens Axboe