Previously local boolean variable empty was used to destruct a
controller in delete_nvme_bdev_controller(). However, it was hard
to understand and did not work well with refactoring.
Using reference count is more sophisticated and works well, and hence
done in this patch.
Signed-off-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Change-Id: I59d0552c16653495fa55e9bfe4a2c0a316a204c3
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/4355
Community-CI: Mellanox Build Bot
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Ziye Yang <ziye.yang@intel.com>
Reviewed-by: Aleksey Marchuk <alexeymar@mellanox.com>
Reviewed-by: Paul Luse <paul.e.luse@intel.com>