From: Stephen Hemminger <shemminger@vyatta.com>
To: Eric Dumazet <eric.dumazet@gmail.com>
Cc: David Miller <davem@davemloft.net>,
Fabio Checconi <fabio@gandalf.sssup.it>,
Luigi Rizzo <rizzo@iet.unipi.it>,
netdev@vger.kernel.org
Subject: Re: [PATCH] sched: QFQ - quick fair queue scheduler (v3)
Date: Thu, 3 Mar 2011 16:03:43 -0800 [thread overview]
Message-ID: <20110303160343.71c55274@nehalam> (raw)
In-Reply-To: <1299191333.2547.12.camel@edumazet-laptop>
On Thu, 03 Mar 2011 23:28:53 +0100
Eric Dumazet <eric.dumazet@gmail.com> wrote:
> Here there is the problem of *pp = cl->next (possibly NULL)
>
> maybe use
>
> for (pp = &grp->slots[j]; (cl = *pp) != NULL;) {
> if (cl->qdisc->q.len)
> qfq_deactivate_class(...);
> else
> pp = &cl->next;
> }
>
I think changing slots from open coded linked list
to double linked list (list_for_each) would be clearer
and avoid these kind of bugs. That is what DRR does.
--
next prev parent reply other threads:[~2011-03-04 0:03 UTC|newest]
Thread overview: 37+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-03-01 1:17 [PATCH] sched: QFQ - quick fair queue scheduler (v2) Stephen Hemminger
2011-03-01 5:28 ` Eric Dumazet
2011-03-02 2:06 ` Fabio Checconi
2011-03-02 11:17 ` Eric Dumazet
2011-03-02 16:11 ` Stephen Hemminger
2011-03-02 16:18 ` Eric Dumazet
2011-03-02 17:31 ` Eric Dumazet
2011-03-02 18:16 ` Patrick McHardy
2011-03-03 9:35 ` Eric Dumazet
2011-03-02 23:55 ` Stephen Hemminger
2011-03-03 8:19 ` Fabio Checconi
2011-03-03 8:27 ` Eric Dumazet
2011-03-03 10:40 ` Eric Dumazet
2011-03-03 15:07 ` Fabio Checconi
2011-03-03 15:25 ` Eric Dumazet
2011-03-03 15:31 ` Eric Dumazet
2011-03-03 15:39 ` Eric Dumazet
2011-03-03 15:18 ` Eric Dumazet
[not found] ` <20110303161912.GC29685@gandalf.sssup.it>
[not found] ` <1299170053.2983.134.camel@edumazet-laptop>
[not found] ` <20110303181339.GD29685@gandalf.sssup.it>
[not found] ` <1299180567.2547.4.camel@edumazet-laptop>
[not found] ` <1299192974.2547.13.camel@edumazet-laptop>
[not found] ` <20110304064302.GE29685@gandalf.sssup.it>
[not found] ` <1299222074.2547.50.camel@edumazet-laptop>
[not found] ` <AANLkTinAGjZ5SAOA1iUAFu5rtYydeb6Soy_Xg5kMvn-z@mail.gmail.com>
[not found] ` <1299274468.2758.4.camel@edumazet-laptop>
[not found] ` <AANLkTikeQCfShKfZWq2Y7V_MA4iRjQvWWtkC68rK9nUm@mail.gmail.com>
[not found] ` <1299277003.2758.52.camel@edumazet-laptop>
[not found] ` <AANLkTinR7QDC2uGjQurJQ1JfBA7q1pxyewePggh87z8E@mail.gmail.com>
[not found] ` <1299278778.2758.53.camel@edumazet-laptop>
[not found] ` <AANLkTikBoQd+ZA1kY0F0MvUsJ8Y=9KwGkfmZNdi4hLXz@mail.gmail.com>
[not found] ` <20110304150741.5d4aa354@nehalam>
[not found] ` <AANLkTi=HBDayfd0bEA+AQqzjTKMajghet=UJAw9vL56A@mail.gmail.com>
[not found] ` <20110309110242.3307ca69@nehalam>
[not found] ` <1300016057.2761.16.camel@edumazet-laptop>
[not found] ` <1300034690.2761.29.camel@edumazet-laptop>
2011-03-23 6:45 ` [BUG] net_sched: failed bisection Eric Dumazet
2011-03-24 6:53 ` [PATCH] net_sched: fix THROTTLED/RUNNING race Eric Dumazet
2011-03-24 7:13 ` David Miller
2011-03-03 9:07 ` [PATCH] sched: QFQ - quick fair queue scheduler (v2) Eric Dumazet
2011-03-02 11:50 ` Patrick McHardy
2011-03-02 15:41 ` Eric Dumazet
2011-03-02 15:53 ` Eric Dumazet
2011-03-03 16:03 ` Eric Dumazet
2011-03-03 16:48 ` [PATCH] sched: QFQ - quick fair queue scheduler (v3) Stephen Hemminger
2011-03-03 22:28 ` Eric Dumazet
2011-03-03 22:59 ` Stephen Hemminger
2011-03-03 23:02 ` [PATCH] sched: QFQ - quick fair queue scheduler (v3.1) Stephen Hemminger
2011-03-03 23:12 ` Eric Dumazet
2011-03-04 0:03 ` Stephen Hemminger [this message]
2011-03-04 0:30 ` [PATCH] sched: QFQ - quick fair queue scheduler (v4) Stephen Hemminger
2011-03-04 6:50 ` Eric Dumazet
2011-03-04 17:17 ` Stephen Hemminger
2011-03-04 17:18 ` Stephen Hemminger
2011-03-04 17:20 ` QFQ debugfs Stephen Hemminger
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20110303160343.71c55274@nehalam \
--to=shemminger@vyatta.com \
--cc=davem@davemloft.net \
--cc=eric.dumazet@gmail.com \
--cc=fabio@gandalf.sssup.it \
--cc=netdev@vger.kernel.org \
--cc=rizzo@iet.unipi.it \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.