This is the first step toward moving MR invalidation decisions to the core. It will be needed by the upcoming RW API.
This makes sense even before the rdma rw stuff. We can add this bit and get rid of the iser flagging (and when nfs/srp will support remote invalidate they will use it too) -- To unsubscribe from this list: send the line "unsubscribe target-devel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
