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Date:      Fri, 19 Oct 2012 10:21:21 +0100
From:      Attilio Rao <attilio@freebsd.org>
To:        Andre Oppermann <andre@freebsd.org>
Cc:        Davide Italiano <davide@freebsd.org>, mlaier@freebsd.org, svn-src-projects@freebsd.org, John Baldwin <jhb@freebsd.org>, Konstantin Belousov <kostikbel@gmail.com>, src-committers@freebsd.org, Stephan Uphoff <ups@freebsd.org>
Subject:   Re: svn commit: r238907 - projects/calloutng/sys/kern
Message-ID:  <CAJ-FndAb9naW5RopgH8H=gBGRmu1UdGX85A12fcevGabHoQj6w@mail.gmail.com>
In-Reply-To: <508119DE.6020106@freebsd.org>
References:  <201207301350.q6UDobCI099069@svn.freebsd.org> <CAJ-FndA8Yende_=-hgOMjfUkQVhaSdSjAb0W8xthqN1ThwT=Vg@mail.gmail.com> <5056D078.3020904@freebsd.org> <201209171113.06861.jhb@freebsd.org> <508119DE.6020106@freebsd.org>

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On 10/19/12, Andre Oppermann <andre@freebsd.org> wrote:
> On 17.09.2012 17:13, John Baldwin wrote:
>> On Monday, September 17, 2012 3:25:44 am Andre Oppermann wrote:
>>> Hello Attilio,
>>>
>>> could you integrate and test this patch from Isilon as well:
>>>
>>>     Add INVARIANT and WITNESS support to rm_lock locks and optimize the
>>>     synchronization path by replacing a LIST of active readers with a
>>>     TAILQ.
>>>
>>>     Obtained from:	Isilon
>>>     Submitted by:	mlaier
>>>
>>>     http://svn.freebsd.org/changeset/base/234648
>>>
>>> You're far deeper into locking than I am.
>>
>> Some of this is already in the tree, and their WITNESS changes don't
>> quite
>> work correctly.  I have several fixes (including some of these already)
>> that I
>> am just waiting to develop a good test for.  Having an _rm_assert() to
>> pull
>> from will be good though.
>
> Any news/progress on this?

I left the ball to John, but I can intervein if needed.

Attilio


-- 
Peace can only be achieved by understanding - A. Einstein



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