Thin provisioned blobs mark unallocated clusters with
cluster ID 0. During recovery from a dirty shutdown,
we must not try to claim cluster 0 - we should ignore
them instead.
Fixes issue #291.
This is a cherry-pick of commit e8ddb060f872 from master.
Change-Id: I83083bba3a2468d68874b485f1fc1e302e46fbd4
Signed-off-by: Jim Harris <james.r.harris@intel.com>
Reviewed-on: https://review.gerrithub.io/410065
Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-on: https://review.gerrithub.io/410699
5f59d919a4