[GIT PULL] block IO bits for 2.6.39-rc

[GIT PULL] block IO bits for 2.6.39-rc

[Jens Axboe]

Hi Linus,

- Fix a long standing bug in CFQ that assumes that read_lock() implies
  rcu_read_lock() as well. No known cases of this hitting (it would have
  to be a lucky punch during IO scheduler switch), but a bug none the
  less.

- Get rid of QUEUE_FLAG_REENTER. I know you love it, but it must go.
  SCSI unconditionally does async queue runs, in most cases they don't
even need to do that. I'll pass a patch through James to correct that.

- Two buglets in the block sysfs code, missing cleanup on error and code
  clarification change.

- blk_flush_plug_list() is no longer used externally, it's only called
  by schedule(). So we can kill the export now.

Please pull!


  git://git.kernel.dk/linux-2.6-block.git for-linus

Jens Axboe (4):
      block: kill blk_flush_plug_list() export
      cfq-iosched: read_lock() does not always imply rcu_read_lock()
      block: get rid of QUEUE_FLAG_REENTER
      block: remove stale kerneldoc member from __blk_run_queue()

Liu Yuan (1):
      block, blk-sysfs: Fix an err return path in blk_register_queue()

Tao Ma (1):
      block: Remove the extra check in queue_requests_store

 block/blk-core.c                 |   13 ++-----------
 block/blk-sysfs.c                |    8 +++++---
 block/blk.h                      |    1 -
 block/cfq-iosched.c              |   20 ++++++--------------
 drivers/scsi/scsi_lib.c          |   17 +----------------
 drivers/scsi/scsi_transport_fc.c |   19 ++++---------------
 include/linux/blkdev.h           |   26 +++++++++++++-------------
 7 files changed, 31 insertions(+), 73 deletions(-)

-- 
Jens Axboe