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[dm-devel] [PULL REQUEST] md updates for 2.6.36

Hi Linus,
 here is my merge-window pull request for md.
 The bulk of this update is changes to allow md/raid5 to be plugged
 into dm as a dm target.  The changes to dm to make this happen are
 with the dm maintainer who has given in-principle agreement - they
 just need to be carefully reviewed.

 The remainder are some deadlock fixes which are tagged for -stable,
 one of which should have been around for quite some time, but have
 only manifested recently for some strange reason.


The following changes since commit 9fe6206f400646a2322096b56c59891d530e8d51:

  Linux 2.6.35 (2010-08-01 15:11:14 -0700)

are available in the git repository at:
  git://neil.brown.name/md/ for-linus

Dan Williams (1):
      md: move revalidate_disk() back outside open_mutex

NeilBrown (21):
      md: reduce dependence on sysfs.
      md/raid5: factor out code for changing size of stripe cache.
      md/raid5: ensure we create a unique name for kmem_cache when mddev has no gendisk
      md: be more careful setting MD_CHANGE_CLEAN
      md: split out md_rdev_init
      md: export various start/stop interfaces
      md: add support for raising dm events.
      raid5: Don't set read-ahead when there is no queue
      md/raid5: export is_congested test
      md/raid5: add simple plugging infrastructure.
      md/plug: optionally use plugger to unplug an array during resync/recovery.
      md/raid5: export raid5 unplugging interface.
      md/bitmap: white space clean up and similar.
      md/bitmap: reduce dependence on sysfs.
      md/bitmap: clean up plugging calls.
      md/bitmap: optimise scanning of empty bitmaps.
      md/bitmap: prepare for storing write-intent-bitmap via dm-dirty-log.
      md/bitmap:  separate out loading a bitmap from initialising the structures.
      md/raid10: fix deadlock with unaligned read during resync
      md: fix another deadlock with removing sysfs attributes.
      md: clean up do_md_stop

 drivers/md/bitmap.c |  508 ++++++++++++++++++++++++++++-----------------------
 drivers/md/bitmap.h |    6 +
 drivers/md/md.c     |  286 ++++++++++++++++++-----------
 drivers/md/md.h     |   55 ++++++-
 drivers/md/raid10.c |   18 ++
 drivers/md/raid5.c  |  168 ++++++++++-------
 drivers/md/raid5.h  |    9 +-
 7 files changed, 643 insertions(+), 407 deletions(-)

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