lists.openwall.net   lists  /  announce  owl-users  owl-dev  john-users  john-dev  passwdqc-users  yescrypt  popa3d-users  /  oss-security  kernel-hardening  musl  sabotage  tlsify  passwords  /  crypt-dev  xvendor  /  Bugtraq  Full-Disclosure  linux-kernel  linux-netdev  linux-ext4  linux-hardening  linux-cve-announce  PHC 
Open Source and information security mailing list archives
 
Hash Suite: Windows password security audit tool. GUI, reports in PDF.
[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Date:	Mon, 08 Oct 2007 19:47:06 -0700 (PDT)
From:	David Miller <davem@...emloft.net>
To:	herbert@...dor.apana.org.au
Cc:	hadi@...erus.ca, jeff@...zik.org, peter.p.waskiewicz.jr@...el.com,
	krkumar2@...ibm.com, johnpol@....mipt.ru, kaber@...sh.net,
	shemminger@...ux-foundation.org, jagana@...ibm.com,
	Robert.Olsson@...a.slu.se, rick.jones2@...com, xma@...ibm.com,
	gaagaan@...il.com, netdev@...r.kernel.org, rdreier@...co.com,
	mcarlson@...adcom.com, mchan@...adcom.com,
	general@...ts.openfabrics.org, tgraf@...g.ch,
	randy.dunlap@...cle.com, sri@...ibm.com
Subject: Re: [PATCH 2/3][NET_BATCH] net core use batching

From: Herbert Xu <herbert@...dor.apana.org.au>
Date: Tue, 9 Oct 2007 10:16:20 +0800

> On Mon, Oct 08, 2007 at 10:14:30PM -0400, jamal wrote:
> >
> > You forgot QDISC_RUNNING Dave;-> the above cant happen. 
> > Essentially at any one point in time, we are guaranteed that we can have
> > multiple cpus enqueueing but only can be dequeueing (the one that
> > managed to grab QDISC_RUNNING) i.e multiple producers to the qdisc queue
> > but only one consumer. Only the dequeuer has access to the txlock.
> 
> Good point.  You had me worried for a sec :)
> 
> Dave, Jamal's patch is fine as it is and doesn't actually create
> any packet reordering.

Ok, then, I'll un-revert. :-)
-
To unsubscribe from this list: send the line "unsubscribe netdev" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html

Powered by blists - more mailing lists