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Date:	Fri, 27 Mar 2009 14:05:02 -0500
From:	Larry Finger <>
To:	Jonathan Corbet <>
CC:	Bartlomiej Zolnierkiewicz <>,
	LKML <>,
	Christoph Hellwig <>,
	Al Viro <>,
	Li Zefan <>,
	Wu Fengguang <>,
	Ingo Molnar <>
Subject: Re: Possible IRQ lock inversion from 2.6.29-Linus-03321-gbe0ea69

Jonathan Corbet wrote:
> We could do that.  When I made the change I'd verified that there were
> no users in IRQ context, and I couldn't really see why there should
> be.  I'd rather avoid adding all those IRQ disables if I can avoid it.
> How about, instead, just reversing the order of lock acquisition in
> fasync_helper()?  That would increase the hold time for f_lock, but I
> have a hard time seeing that being a real problem.  I'm running with
> the following now; all seems well.  I'll send it up in a bit if nobody
> gripes.

The patch gets rid of the warning for me.

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