[dm-devel] [PATCH 0/3] Add deleting state check for target messages

[Mike Anderson <andmike linux vnet ibm com>]

This patch adds a accessor function that allows determining if a
mapped_device is in the deleting state and then adds this check to the
target_message function. The result of this change would be that all
targets would not be allowed to process messages post a mapped device
entering the deleting state.

As previously described in the email at the archive url provided below the
target_message ioctl can result in new work / activities being started
post the mapped device entering states that new target work could cause
issues.

http://permalink.gmane.org/gmane.linux.kernel.device-mapper.devel/10486

This patch depends on the previous patch that added dm_suspended_check due
to proximity of changes in common files.

---

Mike Anderson (3):
      dm: Add dm_deleting accesor function
      dm: Add accessor dm_table_md_deleting
      dm: Add deleting check to target_message


 drivers/md/dm-ioctl.c         |    6 ++++++
 drivers/md/dm-table.c         |    6 ++++++
 drivers/md/dm.c               |    5 +++++
 include/linux/device-mapper.h |    2 ++
 4 files changed, 19 insertions(+), 0 deletions(-)

--
-andmike

Michael Anderson <andmike linux vnet ibm com>