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Date:      Thu, 31 Jan 2008 10:33:55 +0100
From:      Gary Jennejohn <gary.jennejohn@freenet.de>
To:        Jeff Roberson <jroberson@chesapeake.net>
Cc:        Attilio Rao <attilio@freebsd.org>, ups@freebsd.org, rwatson@freebsd.org, arch@freebsd.org
Subject:   Re: rwlock patch to prefer writers and improve spinning.
Message-ID:  <20080131103355.30cc5bb0@peedub.jennejohn.org>
In-Reply-To: <20080130145548.P957@desktop>
References:  <20080128190244.R957@desktop> <3bbf2fe10801291201n7b355205o43b648791f5ca387@mail.gmail.com> <20080129143512.M957@desktop> <3bbf2fe10801291659r650ec27eu5c346b1b85118713@mail.gmail.com> <20080130145548.P957@desktop>

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On Wed, 30 Jan 2008 14:56:05 -1000 (HST)
Jeff Roberson <jroberson@chesapeake.net> wrote:

> On Wed, 30 Jan 2008, Attilio Rao wrote:
> >>> Jeff,
> >>> it is not missing a kern/subr_witness.c part where some checks are axed out?
> >>
> >> Oh you are right I forgot to include some turnstile pieces as well.  I
> >> will provide them soon.
> >
> > Gah, I meant kern/subr_turnstile.c really :)
> 
> The patch is updated in place at:
> 
> http://people.freebsd.org/~jeff/rwlock.diff
> 

Doesn't apply cleanly against -current updated about 10 minutes ago:

Hunk #22 failed at 797.
1 out of 22 hunks failed--saving rejects to kern/kern_rwlock.c.rej

I have
__FBSDID("$FreeBSD: src/sys/kern/kern_rwlock.c,v 1.34 2008/01/17 20:15:15 jhb
Exp $");

Easy enough to apply by hand, but still...

---
Gary Jennejohn



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