Jim Harris cfc372c2ec reduce: write path of pm file to backing dev
Write pm filepath first to offset 4K.  Then write
the super block to offset 0.  This ensures the backing
device isn't really valid until both are written
(avoiding the case where the super block got written
but not the path.)

Signed-off-by: Jim Harris <james.r.harris@intel.com>
Change-Id: I55508aa67b4179e658827c982cd955d009a3f321

Reviewed-on: https://review.gerrithub.io/432505
Chandler-Test-Pool: SPDK Automated Test System <sys_sgsw@intel.com>
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Changpeng Liu <changpeng.liu@intel.com>
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: <spdk-ci.pdl@broadcom.com>
2018-11-12 22:23:44 +00:00
..