tree 1bd3b82b4a6db8fff1fb6fa4aa58e5a6596263a0
parent ffcc39364160663cda1a3c358f4537302a92459b
author Mike Snitzer <snitzer@redhat.com> 1414544325 -0400
committer Mike Snitzer <snitzer@redhat.com> 1416418448 -0500

dm thin: suspend/resume active thin devices when reloading thin-pool

Before this change it was expected that userspace would first suspend
all active thin devices, reload/resize the thin-pool target, then resume
all active thin devices.  Now the thin-pool suspend/resume will trigger
the suspend/resume of all active thins via appropriate calls to
dm_internal_suspend and dm_internal_resume.

Store the mapped_device for each thin device in struct thin_c to make
these calls possible.

Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Acked-by: Joe Thornber <ejt@redhat.com>