netdev - Re: [PATCH] sch_htb.c consume the classes's tokens bellow the HTB_CAN

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:	Wed, 4 Nov 2009 11:49:22 +0000
From:	Jarek Poplawski <jarkao2@...il.com>
To:	Changli Gao <xiaosuo@...il.com>
Cc:	Jamal Hadi Salim <hadi@...erus.ca>, devik@....cz,
	netdev@...r.kernel.org
Subject: Re: [PATCH] sch_htb.c consume the classes's tokens bellow the
	HTB_CAN_SEND level

On Wed, Nov 04, 2009 at 07:21:48PM +0800, Changli Gao wrote:
...
> > cl->mbuffer is only to limit some extreme effects, so more of an
> > exception, not a main tool of rate control. (It really should be
> > useless most of the time if classes don't stop sending and aren't
> > deprived of their full rate for really long time.)
> >
> 
> I don't think so. Although a class's tokens may be negative, but its
> ctokens may be positive. Charging its tokens is to prevent its cmode
> from being changed to HTB_CAN_SEND from HTB_CANT_SEND directly.

I think, you should really better show some tests proving your patch
is needed and doesn't affect a case I described, instead of trying to
discuss the meaninig of all HTB variables here.

Regards,
Jarek P.
--
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