linux-kernel - Re: About lock-less data structure patches

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Message-ID: <20110407183206.GB6104@Krystal>
Date:	Thu, 7 Apr 2011 14:32:06 -0400
From:	Mathieu Desnoyers <mathieu.desnoyers@...icios.com>
To:	Huang Ying <ying.huang@...el.com>
Cc:	huang ying <huang.ying.caritas@...il.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Andi Kleen <andi@...stfloor.org>,
	"lenb@...nel.org" <lenb@...nel.org>,
	"Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Linus Torvalds <torvalds@...ux-foundation.org>
Subject: Re: About lock-less data structure patches

* Huang Ying (ying.huang@...el.com) wrote:
> On 04/06/2011 09:48 AM, Mathieu Desnoyers wrote:
> > * huang ying (huang.ying.caritas@...il.com) wrote:
> [snip]
> >>>>
> >>>> OK.  I will change the comments, adding these semantics explanation.
> >>>> The user should be warned :)
> >>>
> >>> Yes, that makes sense. After this generalization step, if you're ok with
> >>> this, we could aim at moving the implementation from a stack to a queue
> >>> and provide fifo semantic rather than lifo, so that other users (e.g.
> >>> call_rcu in the kernel) can start benefiting from it.
> >>
> >> I think that is good to move from stack to queue.
> >>
> >> I will send out changed lock-less data structure patchset soon.  And
> >> we can continue to work on the new lock-less queue at the same time.
> > 
> > Sounds like a very good plan! Thanks!
> 
> Maybe you can send out your lock-less queue patches, so we can work on that.

Yep, let's wait until your implementation is finalized and merged, and
then ping me again so I can cook up a RFC patch turning llist into a
queue, if it's OK with you.

Thanks,

Mathieu

> 
> Best Regards,
> Huang Ying

-- 
Mathieu Desnoyers
Operating System Efficiency R&D Consultant
EfficiOS Inc.
http://www.efficios.com
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