From: "Denis V. Lunev" <[EMAIL PROTECTED]> Date: Mon, 12 Nov 2007 19:49:03 +0300
> Unregister for a loopback in !init_net is a _valid_ operation and should > be clean, i.e. without kludges in the path. This is the only way to > check the ref-counting. For ipv6 the stack really wants to pin down the loopback device because we need a valid inet6_dev object to reference at all times in order to simplify the per-device SNMP statistic bumping. When a non-loopback device goes down, we point any existing references to that device's idev to the loopback one instead. I really consider taking down the loopback device to be an invalid operation at least how things are implemented currently. There was a suggestion to have a "dummy" device that takes the place of "point dangling idev refs to loopback's one". But some people get upset when statistical events get lost, and rightly so. Such a dummy device would either need to be invisible to the user, or show up and be utterly confusing. - To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html
