linux-kernel - Re: VFS deadlock ?

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Message-ID: <20130321220330.GD21522@ZenIV.linux.org.uk>
Date:	Thu, 21 Mar 2013 22:03:30 +0000
From:	Al Viro <viro@...IV.linux.org.uk>
To:	Linus Torvalds <torvalds@...ux-foundation.org>
Cc:	Dave Jones <davej@...hat.com>,
	Linux Kernel <linux-kernel@...r.kernel.org>
Subject: Re: VFS deadlock ?

On Thu, Mar 21, 2013 at 02:57:29PM -0700, Linus Torvalds wrote:
> On Thu, Mar 21, 2013 at 2:55 PM, Al Viro <viro@...iv.linux.org.uk> wrote:
> > On Thu, Mar 21, 2013 at 02:47:06PM -0700, Linus Torvalds wrote:
> >
> >> It will also end up giving you
> >> the information about whether the dentry is unlinked or not.
> >
> > You also want to know if p2 is unlinked, though (and yes, it's dentry_path(),
> > of course - apologies for the braino).
> 
> Just do dentry_path on both p1 and p2. You'll have to have two
> different buffers for them, of course.

I would be rather surprised if the pathnames proper would turn out to be
different, actually...
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