[PULL REQUEST] 3 fixes for md in 3.6.

[NeilBrown]

The following changes since commit 55d512e245bc7699a8800e23df1a24195dd08217:

  Linux 3.6-rc5 (2012-09-08 16:43:45 -0700)

are available in the git repository at:

  git://neil.brown.name/md/ tags/md-3.6-fixes

for you to fetch changes up to 6dafab6b1383e912cd252fa809570b484eb6e0dc:

  md: make sure metadata is updated when spares are activated or removed. (2012-09-19 12:54:22 +1000)

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3 fixes for md in 3.6.

One reverts a recent patch which turns out to not be such a good
idea.
Other two fix minor bugs with the new (since 3.3) 'replacement' code
and have been tagged for -stable.

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NeilBrown (3):
      Revert "md/raid5: For odirect-write performance, do not set STRIPE_PREREAD_ACTIVE."
      md/raid5: fix calculate of 'degraded' when a replacement becomes active.
      md: make sure metadata is updated when spares are activated or removed.

 drivers/md/md.c    | 6 +++++-
 drivers/md/raid5.c | 6 +++++-
 2 files changed, 10 insertions(+), 2 deletions(-)

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