linux-kernel - Re: [PATCH tip/core/rcu 18/86] rcu: add grace-period age to tracing

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Message-ID: <20110501152509.GB14829@feather>
Date:	Sun, 1 May 2011 08:25:09 -0700
From:	Josh Triplett <josh@...htriplett.org>
To:	"Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>
Cc:	linux-kernel@...r.kernel.org, mingo@...e.hu, laijs@...fujitsu.com,
	dipankar@...ibm.com, akpm@...ux-foundation.org,
	mathieu.desnoyers@...ymtl.ca, 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,
	patches@...aro.org, "Paul E. McKenney" <paul.mckenney@...aro.org>
Subject: Re: [PATCH tip/core/rcu 18/86] rcu: add grace-period age to tracing

On Sun, May 01, 2011 at 06:20:58AM -0700, Paul E. McKenney wrote:
> From: Paul E. McKenney <paul.mckenney@...aro.org>
> 
> This commit adds the age in jiffies of the current grace period along
> with the duration in jiffies of the longest grace period since boot
> to the rcu/rcugp debugfs file.

This change seems to have several other unrelated changes mixed in and
not documented, related to adding and tracing RCU_KTHREAD_OFFCPU.

- Josh Triplett
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