linux-kernel - Re: [PATCH v3 1/1] dcache: Translating dentry into pathname without taking rename

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Message-ID: <20130906210546.GW13318@ZenIV.linux.org.uk>
Date:	Fri, 6 Sep 2013 22:05:46 +0100
From:	Al Viro <viro@...IV.linux.org.uk>
To:	Linus Torvalds <torvalds@...ux-foundation.org>
Cc:	Waiman Long <Waiman.Long@...com>,
	linux-fsdevel <linux-fsdevel@...r.kernel.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	"Chandramouleeswaran, Aswin" <aswin@...com>,
	"Norton, Scott J" <scott.norton@...com>,
	George Spelvin <linux@...izon.com>,
	John Stoffel <john@...ffel.org>
Subject: Re: [PATCH v3 1/1] dcache: Translating dentry into pathname without
 taking rename_lock

On Fri, Sep 06, 2013 at 01:52:49PM -0700, Linus Torvalds wrote:
 
> Al - do you have comments? Do you want to take this through your tree,
> or are you working on other things? I can take this directly too..

I can take that, but I'm really not convinced that we need writer lock
there at all.  After all, if we really can get livelocks on that one,
we would be getting them on d_lookup()...

Let's not complicate the things without need; if we ever run into loads
where livelock start to happen, we can look into dealing with them.
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