Can get an EEXIST if the mount follows too quickly
Can get an EEXIST if the mount follows too quickly

Seems that perhaps the umount is now asynchronous so following
it up immediately with a mount returns an EEXIST.  So sleep and
try again, and again, and again, etc.

intel-hpdd/intel-manager-for-lustre,intel-hpdd/intel-manager-for-lustre,intel-hpdd/intel-manager-for-lustre