linux-kernel - Re: VFS deadlock ?

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Message-ID: <CA+55aFzK_OBwhuBw1Oap6Z-Q4+D3NZipZXBn50JuRvcYVz60+w@mail.gmail.com>
Date:	Thu, 21 Mar 2013 14:57:29 -0700
From:	Linus Torvalds <torvalds@...ux-foundation.org>
To:	Al Viro <viro@...iv.linux.org.uk>
Cc:	Dave Jones <davej@...hat.com>,
	Linux Kernel <linux-kernel@...r.kernel.org>
Subject: Re: VFS deadlock ?

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.

          Linus
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