linux-kernel - Re: qlogic lockdep warning

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Date:	Thu, 21 Jan 2010 10:02:07 +0100
From:	Peter Zijlstra <peterz@...radead.org>
To:	Xiaotian Feng <xtfeng@...il.com>
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, 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?

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