linux-kernel - Re: [PATCH v2 tip/core/rcu 0/10] RCU-tasks implementation

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Message-ID: <871tt1qqcf.fsf@tassilo.jf.intel.com>
Date:	Thu, 31 Jul 2014 12:29:36 -0700
From:	Andi Kleen <andi@...stfloor.org>
To:	paulmck@...ux.vnet.ibm.com
Cc:	linux-kernel@...r.kernel.org, mingo@...nel.org,
	laijs@...fujitsu.com, dipankar@...ibm.com,
	akpm@...ux-foundation.org, mathieu.desnoyers@...icios.com,
	josh@...htriplett.org, tglx@...utronix.de, peterz@...radead.org,
	rostedt@...dmis.org, dhowells@...hat.com, edumazet@...gle.com,
	dvhart@...ux.intel.com, fweisbec@...il.com, oleg@...hat.com,
	bobby.prani@...il.com
Subject: Re: [PATCH v2 tip/core/rcu 0/10] RCU-tasks implementation

"Paul E. McKenney" <paulmck@...ux.vnet.ibm.com> writes:

> Hello!
>
> This series provides a prototype of an RCU-tasks implementation, which has
> been requested to assist with tramopoline removal.

Is that trampoline removal (whatever it is) important enough to justify
adding that much new (and complicated) code? Are there other potential
users of this? Is the long term maintenance cost justified?
Will RCU keep growing forever?

-Andi

-- 
ak@...ux.intel.com -- Speaking for myself only
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