pg_tag was added to struct spdk_iscsi_conn long ago but had not
been used yet. Portal group and its portals can be removed
dynamically even if there is any binded connection. Using cached
pg_tag will avoid potential errors.
Signed-off-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Change-Id: Ic7a96ef97c3cab7e5a58aa7f439364b53694a1e4
Reviewed-on: https://review.gerrithub.io/c/spdk/spdk/+/463874
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Changpeng Liu <changpeng.liu@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
f338b43a86