CA-37337: Make sure we can't VBD.plug while lvhd_stop_using_these_vdis is in progress
CA-37337: Make sure we can't VBD.plug while lvhd_stop_using_these_vdis is in progress

Signed-off-by: Jon Ludlam <773d6e0eb862fba7e60c53f53fe5c3ad92d8794a@eu.citrix.com>

djs55/squeezed,johnelse/xcp-rrdd,koushikcgit/xcp-rrdd,djs55/xcp-networkd,koushikcgit/xcp-networkd,sharady/xcp-networkd,simonjbeaumont/xcp-rrdd,robhoes/squeezed,sharady/xcp-networkd,johnelse/xcp-rrdd,koushikcgit/xcp-rrdd,koushikcgit/xcp-networkd,djs55/xcp-networkd,djs55/xcp-rrdd,simonjbeaumont/xcp-rrdd,koushikcgit/xcp-rrdd,djs55/xcp-rrdd