linux-kernel - Re: per_cpu_counter

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Message-ID: <4846206E.2070507@linux.vnet.ibm.com>
Date:	Wed, 04 Jun 2008 10:26:14 +0530
From:	Balbir Singh <balbir@...ux.vnet.ibm.com>
To:	Matthew Wilcox <matthew@....cx>
CC:	linux-fsdevel@...r.kernel.org,
	linux kernel mailing list <linux-kernel@...r.kernel.org>
Subject: Re: per_cpu_counter_sum lockdep warning

> 
> Some percpu counters are supposed to be used from interrupt context.
> These are created with percpu_counter_init_irq.  Others are not and
> should be created with percpu_counter_init.  It seems like someone's
> made a mess of that rule.  This is likely to be a driver, IMO.  Perhaps
> you could work on tracking this down?
> 

Sorry for the noise. It was patch I had applied on my tree, not yet in mainline.
The explanation though did help me find and fix the problem.


-- 
	Warm Regards,
	Balbir Singh
	Linux Technology Center
	IBM, ISTL
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