[PATCH v3 0/5] fix shutdown races and snapshot error handling

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Patches 1-3 fix races between device removal and notify processing.

Patch 2 has an improved summary, fixes reference counting, and
renames the function as suggested by Alex.

Patch 3 is a reworked and simplified version that uses the existing
rbd_dev->flags and lock instead of adding new ones. It also restricts
where it holds the lock to avoid an inversion with bdev->lock.

Patch 4 is the same.

Patch 5 fixes an inconsistency noticed by Alex in his review of patch 4.

Josh Durgin (5):
  rbd: complete notifies before cleaning up osd_client and rbd_dev
  rbd: make rbd_obj_notify_ack() synchronous
  rbd: fix use-after free of rbd_dev->disk
  rbd: ignore unmapped snapshots that no longer exist
  rbd: fix error handling from rbd_snap_name()

 drivers/block/rbd.c |   71 ++++++++++++++++++++++++++++++++++++++-------------
 1 files changed, 53 insertions(+), 18 deletions(-)

-- 
1.7.2.5

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