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    SubjectRe: [patch 7/11] net: Use bigrefs for net_device.refcount
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    From: Stephen Hemminger <shemminger@osdl.org>
    Date: Tue, 13 Sep 2005 09:26:59 -0700

    > Since when is bringing a network device up/down performance critical?

    The issue is the dev_get()'s that occur all over the place
    to during packet transmit/receive, that's what they are
    trying to address.

    I'm still against all of these invasive NUMA changes to the
    networking though, they are simply too ugly and special cased
    to consider seriously.
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