linux-kernel - Re: [PATCH RFC tip/core/rcu] rcu: direct algorithmic SRCU implementation

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Message-ID: <4F42EF53.6060400@cn.fujitsu.com>
Date:	Tue, 21 Feb 2012 09:11:47 +0800
From:	Lai Jiangshan <laijs@...fujitsu.com>
To:	paulmck@...ux.vnet.ibm.com
CC:	linux-kernel@...r.kernel.org, mingo@...e.hu, dipankar@...ibm.com,
	akpm@...ux-foundation.org, mathieu.desnoyers@...ymtl.ca,
	josh@...htriplett.org, niv@...ibm.com, tglx@...utronix.de,
	peterz@...radead.org, rostedt@...dmis.org, Valdis.Kletnieks@...edu,
	dhowells@...hat.com, eric.dumazet@...il.com, darren@...art.com,
	fweisbec@...il.com, patches@...aro.org
Subject: Re: [PATCH RFC tip/core/rcu] rcu: direct algorithmic SRCU implementation

On 02/21/2012 01:44 AM, Paul E. McKenney wrote:

> 
>> My conclusion, we can just remove the check-and-return path to reduce
>> the complexity since we will introduce call_srcu().
> 
> If I actually submit the above upstream, that would be quite reasonable.
> My thought is that patch remains RFC and the upstream version has
> call_srcu().

Does the work of call_srcu() is started or drafted?

> 
>> This new srcu is very great, especially the SRCU_USAGE_COUNT for every
>> lock/unlock witch forces any increment/decrement pair changes the counter
>> for me.
> 
> Glad you like it!  ;-)
> 
> And thank you for your review and feedback!

Could you add my Reviewed-by when this patch is last submitted?


Reviewed-by: Lai Jiangshan <laijs@...fujitsu.com>

Thanks
Lai
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