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Date: Sun, 18 Mar 2007 16:24:23 -0600 From: ebiederman@...i.com (Eric W. Biederman) To: "Michael S. Tsirkin" <mst@....mellanox.co.il> Cc: Alexey Kuznetsov <kuznet@....inr.ac.ru>, netdev@...r.kernel.org, Linux Kernel Mailing List <linux-kernel@...r.kernel.org>, general@...ts.openfabrics.org Subject: Re: [ofa-general] Re: dst_ifdown breaks infiniband? "Michael S. Tsirkin" <mst@....mellanox.co.il> writes: >> > Why is neighbour->dev changed here? >> >> It holds reference to device and prevents its destruction. >> If dst is held somewhere, we cannot destroy the device and deadlock >> while unregister. > > BTW, can this ever happen for the loopback device itself? > Is it ever unregistered? Well I don't think the loopback device is currently but as soon as we get network namespace support we will have multiple loopback devices and they will get unregistered when we remove the network namespace. Eric - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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