[git pull] device mapper fix for 4.0-rc6

[Mike Snitzer <snitzer@redhat.com>]

Hi Linus,

The following changes since commit e5db29806b99ce2b2640d2e4d4fcb983cea115c5:

  dm io: deal with wandering queue limits when handling REQ_DISCARD and REQ_WRITE_SAME (2015-02-27 14:53:32 -0500)

are available in the git repository at:

  git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm tags/dm-4.0-fix-2

for you to fetch changes up to 63a4f065ece613b6d575b538234375b0e9c23bbc:

  dm: fix add_disk() NULL pointer due to race with free_dev() (2015-03-23 18:14:00 -0400)

Please pull, thanks.
Mike

----------------------------------------------------------------
. Fix DM core device cleanup regression -- due to a latent race that was
  exposed by the bdi changes that were introduced during the 4.0 merge.

----------------------------------------------------------------
Mike Snitzer (1):
      dm: fix add_disk() NULL pointer due to race with free_dev()

 drivers/md/dm.c | 26 ++++++++++++++++----------
 1 file changed, 16 insertions(+), 10 deletions(-)