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Date: Mon, 7 Oct 2013 12:09:55 +0400
From: Gleb Smirnoff <glebius@FreeBSD.org>
To: "Alexander V. Chernikov" <melifaro@FreeBSD.org>
Subject: Re: svn commit: r256066 - head/sys/dev/virtio/network
Message-ID: <20131007080955.GI8860@FreeBSD.org>
References: <201310051807.r95I7P0M048589@svn.freebsd.org>
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Cc: svn-src-head@freebsd.org, Bryan Venteicher <bryanv@FreeBSD.org>,
 svn-src-all@freebsd.org, src-committers@freebsd.org
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On Sun, Oct 06, 2013 at 01:12:06AM +0400, Alexander V. Chernikov wrote:
A> On 05.10.2013 22:07, Bryan Venteicher wrote:
A> > Author: bryanv
A> > Date: Sat Oct  5 18:07:24 2013
A> > New Revision: 256066
A> > URL: http://svnweb.freebsd.org/changeset/base/256066
A> > 
A> > Log:
A> >   Do not hold the vtnet Rx queue lock when calling up into the stack
A> Do you measure performance penalty for this?
A> >   
A> >   This matches other similar drivers and avoids various LOR warnings.
A> We're currently trying to eliminate such things in other drivers like
A> ixgbe, maybe there can be some other way to eliminate possible LORs?

True, but we don't have time to do that before 10.0-RELEASE. So, from
upcoming release perspective, Bryan change is correct fix.

-- 
Totus tuus, Glebius.