Re: [PATCH v2] tcp: splice as many packets as possible at once

[Herbert Xu]

On Tue, Feb 03, 2009 at 02:49:44PM +0300, Evgeniy Polyakov wrote:
> How many such preallocated frames is enough? Does it enough to have all
> sockets recv buffer sizes divided by the MTU size? Or just some of them,
> or... That will work but there are way too many corner cases.

Easy, the driver is already allocating them right now so we don't
have to change a thing :)

All we have to do is change the refill mechanism to always allocate
a replacement skb in the rx path, and if that fails, allocate a
fragmented skb instead and copy the received data into it so that
the contiguous skb can be reused.

Cheers,
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