linux-kernel - Re: [PATCH 0/9] Support follow

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Date:	Thu, 5 Mar 2015 16:00:33 +0000
From:	Al Viro <viro@...IV.linux.org.uk>
To:	John Stoffel <john@...ffel.org>
Cc:	NeilBrown <neilb@...e.de>, linux-fsdevel@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 0/9] Support follow_link in RCU-walk.

On Thu, Mar 05, 2015 at 08:52:20AM -0500, John Stoffel wrote:

> So what happens if your filesystem is 10Tb in size, and you have 50
> million files and lots of them are symlinks?  I've got developers who
> do shit like this and wonder why performance sucks....  and I just
> worry that GPF_KERNEL is a limited resource.  But maybe 64bit systems
> won't really have any problems?

What would keep all those symlinks' contents pinned in page cache?
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