[GIT PULL REQUEST] late md/raid1 bug fixes for 3.17

[GIT PULL REQUEST] late md/raid1 bug fixes for 3.17

[NeilBrown]

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Hi Linus,
 it is amazing how much easier it is to find bugs when you know one is there.
Two bug reports resulted in finding 7 bugs!!

All are tagged for -stable.  Those that can't cause (rare) data corruption,
cause lockups.

Thanks,
NeilBrown


The following changes since commit d030671f3f261e528dc6e396a13f10859a74ae7c:

  Merge branch 'for-3.17-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup (2014-09-07 20:20:16 -0700)

are available in the git repository at:

  git://git.neil.brown.name/md/ tags/md/3.17-more-fixes

for you to fetch changes up to b8cb6b4c121e1bf1963c16ed69e7adcb1bc301cd:

  md/raid1: fix_read_error should act on all non-faulty devices. (2014-09-22 11:26:01 +1000)

----------------------------------------------------------------
Bugfixes for md/raid1

particularly, but not only, fixing new "resync" code.

----------------------------------------------------------------
NeilBrown (8):
      md/raid1: intialise start_next_window for READ case to avoid hang
      md/raid1:  be more cautious where we read-balance during resync.
      md/raid1: clean up request counts properly in close_sync()
      md/raid1: make sure resync waits for conflicting writes to complete.
      md/raid1: Don't use next_resync to determine how far resync has progressed
      md/raid1: update next_resync under resync_lock.
      md/raid1: count resync requests in nr_pending.
      md/raid1: fix_read_error should act on all non-faulty devices.

 drivers/md/raid1.c | 40 ++++++++++++++++++++++------------------
 1 file changed, 22 insertions(+), 18 deletions(-)

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