linux-kernel - Re: [PATCH 16/24] link_path

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Message-ID: <20150420215255.GP889@ZenIV.linux.org.uk>
Date:	Mon, 20 Apr 2015 22:52:55 +0100
From:	Al Viro <viro@...IV.linux.org.uk>
To:	Linus Torvalds <torvalds@...ux-foundation.org>
Cc:	Neil Brown <neilb@...e.de>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	linux-fsdevel <linux-fsdevel@...r.kernel.org>
Subject: Re: [PATCH 16/24] link_path_walk: kill the recursion

On Mon, Apr 20, 2015 at 02:41:31PM -0700, Linus Torvalds wrote:
> On Mon, Apr 20, 2015 at 2:32 PM, Al Viro <viro@...iv.linux.org.uk> wrote:
> >
> > A kilobyte would suffice for 32 levels.  _IF_ we go for "lift the restrictions
> > on nesting completely", sure, we want to switch to (on-demand) dynamic
> > allocation.
> 
> And no, we will *never* lift the recursion limit. Not for 1kB, not for
> 1MB. Never.

We still have the "no more than 40 links total" limit, so it would obviously
be limited by that...
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