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

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <20150305160032.GB29656@ZenIV.linux.org.uk>
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?
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/