netdev - Re: [Xen-devel] [PATCH 5/6] xen-netback: coalesce slots before copying

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] [day] [month] [year] [list]

Date:	Tue, 9 Apr 2013 16:10:07 +0100
From:	Ian Campbell <Ian.Campbell@...rix.com>
To:	Konrad Rzeszutek Wilk <konrad.wilk@...cle.com>
CC:	Wei Liu <wei.liu2@...rix.com>,
	"xen-devel@...ts.xen.org" <xen-devel@...ts.xen.org>,
	"netdev@...r.kernel.org" <netdev@...r.kernel.org>,
	"annie.li@...cle.com" <annie.li@...cle.com>,
	David Vrabel <david.vrabel@...rix.com>
Subject: Re: [Xen-devel] [PATCH 5/6] xen-netback: coalesce slots before
 copying

On Mon, 2013-03-25 at 16:57 +0000, Konrad Rzeszutek Wilk wrote:
> On Mon, Mar 25, 2013 at 11:08:21AM +0000, Wei Liu wrote:
> > This patch tries to coalesce tx requests when constructing grant copy
> > structures. It enables netback to deal with situation when frontend's
> > MAX_SKB_FRAGS is larger than backend's MAX_SKB_FRAGS.
> >
> > It defines max_skb_slots, which is a estimation of the maximum number of slots
> > a guest can send, anything bigger than that is considered malicious. Now it is
> > set to 20, which should be enough to accommodate Linux (16 to 19).
> >
> > Also change variable name from "frags" to "slots" in netbk_count_requests.
> >
> 
> This should probably also CC stable@...r.kernel.org

DaveM prefers net patches to not do so and he takes care of forwarding
patches once he is happy (i.e. after they've been in his/Linus' tree for
a bit).

Ian

--
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