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SubjectRe: [patch] voluntary-preempt-2.6.9-rc1-bk4-R0

* Lee Revell <> wrote:

> > i've given up on the netdev_backlog_granularity approach, and as a
> > replacement i've modified specific network drivers to return at a safe
> > point if softirq preemption is requested.
> Makes sense, netdev_max_backlog never made a difference on my system
> (via-rhine driver).

via-rhine does RX processing from the hardirq handler, this codepath is
harder to break up. The NAPI ->poll functions used by e100 and 8193too
are much easier to break up because RX throttling and re-trying is a
basic property of NAPI.

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