From: Balbir Singh <balbir@linux.vnet.ibm.com>
To: Matthew Wilcox <matthew@wil.cx>
Cc: linux-fsdevel@vger.kernel.org,
linux kernel mailing list <linux-kernel@vger.kernel.org>
Subject: Re: per_cpu_counter_sum lockdep warning
Date: Wed, 04 Jun 2008 10:26:14 +0530 [thread overview]
Message-ID: <4846206E.2070507@linux.vnet.ibm.com> (raw)
In-Reply-To: <20080604035954.GE3549@parisc-linux.org>
>
> 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
prev parent reply other threads:[~2008-06-04 4:58 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-06-04 3:27 per_cpu_counter_sum lockdep warning Balbir Singh
2008-06-04 3:59 ` Matthew Wilcox
2008-06-04 4:43 ` Balbir Singh
2008-06-04 4:56 ` Balbir Singh [this message]
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