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Date:      Mon, 10 Apr 2017 15:18:37 +0200
From:      Hans Petter Selasky <hps@selasky.org>
To:        Olivier Houchard <cognet@ci0.org>, Conrad Meyer <cem@freebsd.org>
Cc:        src-committers <src-committers@freebsd.org>, svn-src-all@freebsd.org, svn-src-head@freebsd.org
Subject:   Re: svn commit: r316665 - in head/sys: compat/linuxkpi/common/src contrib/ck/include contrib/ck/src
Message-ID:  <6e177da0-2367-c5b1-cb0e-bd8535cdf53e@selasky.org>
In-Reply-To: <20170409230840.GA90254@ci0.org>
References:  <201704092102.v39L25oh040066@repo.freebsd.org> <CAG6CVpUSyDfBOy9ScGOQs_JGuVLfD6y0E0Rs15Qo-rPhxd7bQg@mail.gmail.com> <20170409230840.GA90254@ci0.org>

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On 04/10/17 01:08, Olivier Houchard wrote:
> On Sun, Apr 09, 2017 at 03:49:57PM -0700, Conrad Meyer wrote:
>> On Sun, Apr 9, 2017 at 2:02 PM, Olivier Houchard <cognet@freebsd.org> wrote:
>>> Author: cognet
>>> Date: Sun Apr  9 21:02:05 2017
>>> New Revision: 316665
>>> URL: https://svnweb.freebsd.org/changeset/base/316665
>>>
>>> Log:
>>>   Import CK as of commit 6b141c0bdd21ce8b3e14147af8f87f22b20ecf32
>>>   This brings us changes we needed in ck_epoch.
>>
>> Out of curiosity ??? what changes did we need, and why?
>>
>
> Hi Conrad,
>
> What ck_epoch lacked was any way to do priority propagation, which led
> to some nice deadlocks to the linuxkpi folks.
>
> Regards,
>
> Olivier
>
>

Hi,

There will be some updates to the RCU implementation soon, using the new 
APIs provided by the CK.

Thank you!

--HPS



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