linux-kernel - Re: qlogic lockdep warning

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Message-ID: <7b6bb4a51001210114g1b2ec290g3fdf098a651b6b38@mail.gmail.com>
Date:	Thu, 21 Jan 2010 17:14:14 +0800
From:	Xiaotian Feng <xtfeng@...il.com>
To:	Peter Zijlstra <peterz@...radead.org>
Cc:	Yinghai Lu <yinghai@...nel.org>, Ingo Molnar <mingo@...e.hu>,
	James Bottomley <James.Bottomley@...senpartnership.com>,
	James.Bottomley@...e.de,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Linux-Scsi <linux-scsi@...r.kernel.org>
Subject: Re: qlogic lockdep warning

On Thu, Jan 21, 2010 at 5:02 PM, Peter Zijlstra <peterz@...radead.org> wrote:
> On Thu, 2010-01-21 at 16:46 +0800, Xiaotian Feng wrote:
>> qla24xx_msix_default is using spin_lock_irq and spin_unlock_irq within
>> the irq handler...
>> I think convert to spin_lock_irqsave/spin_unlock_irqrestore can solve
>> this warning.
>
> Not only that it'll actually solve a bug too ;-)
>
> Also,
>
> A: Because it messes up the order in which people normally read text.
> Q: Why is top-posting such a bad thing?
> A: Top-posting.
> Q: What is the most annoying thing in e-mail?

Ah, just realized it by your examples :-) Sorry for the bad manner in e-mail...

>
>
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