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:   Fri, 01 Mar 2019 23:07:10 -0800 (PST)
From:   David Miller <davem@...emloft.net>
To:     edumazet@...gle.com
Cc:     netdev@...r.kernel.org, eric.dumazet@...il.com,
        john.fastabend@...il.com, jhs@...atatu.com,
        xiyou.wangcong@...il.com, jiri@...nulli.us
Subject: Re: [PATCH net] net: sched: put back q.qlen into a single location

From: Eric Dumazet <edumazet@...gle.com>
Date: Thu, 28 Feb 2019 12:55:43 -0800

> In the series fc8b81a5981f ("Merge branch 'lockless-qdisc-series'")
> John made the assumption that the data path had no need to read
> the qdisc qlen (number of packets in the qdisc).
> 
> It is true when pfifo_fast is used as the root qdisc, or as direct MQ/MQPRIO
> children.
> 
> But pfifo_fast can be used as leaf in class full qdiscs, and existing
> logic needs to access the child qlen in an efficient way.
 ...

I'm going to let this sit a bit for review...

Powered by blists - more mailing lists