lkml.org 
[lkml]   [2008]   [Dec]   [20]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH][RFC 23/23]: Support for zero-copy TCP transmit of user space data
On Fri, Dec 19, 2008 at 11:43:34PM -0800, Jeremy Fitzhardinge wrote:
>
> Hm. So if I get a destructor call from the shared_info, can I go an
> inspect the page refcounts to see if its really the last use?

The pages that were originally in the shared_info at creation
time may no longer be there by the time it's freed because of
pskb_pull_tail.

Cheers,
--
Visit Openswan at http://www.openswan.org/
Email: Herbert Xu ~{PmV>HI~} <herbert@gondor.apana.org.au>
Home Page: http://gondor.apana.org.au/~herbert/
PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt

\
 
 \ /
  Last update: 2008-12-20 09:15    [from the cache]
©2003-2011 Jasper Spaans