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Date:	Sun, 13 Sep 2009 09:23:02 -0700
From:	Daniel Walker <>
To:	"Paul E. McKenney" <>
Subject: Re: [PATCH tip/core/rcu 2/4] Add debug checks to TREE_PREEMPT_RCU
 for premature grace periods.

On Sun, 2009-09-13 at 09:15 -0700, Paul E. McKenney wrote:
> From: Paul E. McKenney <>
> Check to make sure that there are no blocked tasks for the previous
> grace period while initializing for the next grace period, verify
> that rcu_preempt_qs() is given the correct CPU number and is never
> called for an offline CPU.

You've got a couple of whitespace issues in the WARN_ON_ONCE() lines..
As found by checkpatch,

ERROR: code indent should use tabs where possible
#97: FILE: kernel/rcutree_plugin.h:89:
+^I    ^IWARN_ON_ONCE(cpu != smp_processor_id());$

ERROR: code indent should use tabs where possible
#109: FILE: kernel/rcutree_plugin.h:111:
+^I    ^IWARN_ON_ONCE((rdp->grpmask & rnp->qsmaskinit) == 0);$

Could you fix these up?


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