lkml.org 
[lkml]   [2009]   [Jan]   [20]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
SubjectRe: [PATCH v2] tcp: splice as many packets as possible at once
From
From: Jarek Poplawski <jarkao2@gmail.com>
Date: Tue, 20 Jan 2009 11:01:44 +0000

> On Tue, Jan 20, 2009 at 01:31:22PM +0300, Evgeniy Polyakov wrote:
> > On Tue, Jan 20, 2009 at 10:20:53AM +0000, Jarek Poplawski (jarkao2@gmail.com) wrote:
> > > Good question! Alas I can't check this soon, but if it's really like
> > > this, of course this needs some better idea and rework. (BTW, I'd like
> > > to prevent here as much as possible some strange activities like 1
> > > byte (payload) packets getting full pages without any accounting.)
> >
> > I believe approach to meet all our goals is to have own network memory
> > allocator, so that each skb could have its payload in the fragments, we
> > would not suffer from the heavy fragmentation and power-of-two overhead
> > for the larger MTUs, have a reserve for the OOM condition and generally
> > do not depend on the main system behaviour.
>
> 100% right! But I guess we need this current fix for -stable, and I'm
> a bit worried about safety.

Jarek, we already have a page and offset you can use.

It's called sk_sndmsg_page but that is just the (current) name.
Nothing prevents you from reusing it for your purposes here.


\
 
 \ /
  Last update: 2009-01-20 18:19    [W:0.188 / U:1.444 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site