Re: [PATCH][RFC 23/23]: Support for zero-copy TCP transmit of userspace data

From: Herbert Xu
Date: Sat Dec 20 2008 - 01:52:14 EST


On Fri, Dec 19, 2008 at 10:14:47PM -0800, Jeremy Fitzhardinge wrote:
>
> Ah, so the lifetime of the shared_info structure doesn't match the
> lifetime of the underlying pages, and this mechanism would be
> insufficient for my purposes?

Right.

> If so, how can it be solved?

Well since each individual page can be pulled out I think you
just have to track them.

Cheers,
--
Visit Openswan at http://www.openswan.org/
Email: Herbert Xu ~{PmV>HI~} <herbert@xxxxxxxxxxxxxxxxxxx>
Home Page: http://gondor.apana.org.au/~herbert/
PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/