[PULL REQUEST] md fixes for 3.9

[NeilBrown]

The following changes since commit f3378b48705154b9089affb2d2e939622aea68f1:

  md: expedite metadata update when switching  read-auto -> active (2013-02-28 11:59:03 +1100)

are available in the git repository at:

  git://neil.brown.name/md/ tags/md-3.9-fixes

for you to fetch changes up to 238f5908bd48f9e2f4668e0289e88cba969d710c:

  md: remove CONFIG_MULTICORE_RAID456 entirely (2013-03-20 13:21:14 +1100)

----------------------------------------------------------------
A few bugfixes for md

 - recent regressions in raid5
 - recent regressions in dmraid
 - a few instances of CONFIG_MULTICORE_RAID456 linger

Several tagged for -stable

----------------------------------------------------------------
Jonathan Brassow (2):
      MD RAID5: Avoid accessing gendisk or queue structs when not available
      MD: Prevent sysfs operations on uninitialized kobjects

NeilBrown (2):
      md/raid5: schedule_construction should abort if nothing to do.
      md/raid5: ensure sync and DISCARD don't happen at the same time.

Paul Bolle (1):
      md: remove CONFIG_MULTICORE_RAID456 entirely

 arch/tile/configs/tilegx_defconfig  |   1 -
 arch/tile/configs/tilepro_defconfig |   1 -
 drivers/md/md.c                     |   6 +-
 drivers/md/md.h                     |   4 +-
 drivers/md/raid5.c                  | 116 +++++++++++++++++++++++++-----------
 drivers/md/raid5.h                  |   5 +-
 6 files changed, 86 insertions(+), 47 deletions(-)

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