linux-kernel - Re: [PATCH RFC tip/core/rcu 11/11] rcu: move TREE

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Message-ID: <1298472134.7666.82.camel@gandalf.stny.rr.com>
Date:	Wed, 23 Feb 2011 09:42:14 -0500
From:	Steven Rostedt <rostedt@...dmis.org>
To:	Mathieu Desnoyers <mathieu.desnoyers@...ymtl.ca>
Cc:	"Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>,
	linux-kernel@...r.kernel.org, mingo@...e.hu, laijs@...fujitsu.com,
	dipankar@...ibm.com, akpm@...ux-foundation.org,
	josh@...htriplett.org, niv@...ibm.com, tglx@...utronix.de,
	peterz@...radead.org, Valdis.Kletnieks@...edu, dhowells@...hat.com,
	eric.dumazet@...il.com, darren@...art.com,
	"Paul E. McKenney" <paul.mckenney@...aro.org>
Subject: Re: [PATCH RFC tip/core/rcu 11/11] rcu: move TREE_RCU from softirq
 to kthread

On Wed, 2011-02-23 at 09:02 -0500, Mathieu Desnoyers wrote:
> * Paul E. McKenney (paulmck@...ux.vnet.ibm.com) wrote:
> [...]
> > +	for (cpu = rnp->grplo; cpu <= rnp->grphi; cpu++, mask <<= 1)
> > +		if (mask & 01)
> 
> Wow, octal notation! ;)

Heh

> 
> Maybe we could consider 0x1 here.

Why even the conversion? mask & 1 should be good enough.

Perhaps 1UL to match the unsigned long.

-- Steve


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