From mboxrd@z Thu Jan  1 00:00:00 1970
From: Linus Torvalds <torvalds@linux-foundation.org>
Subject: Re: [PATCH 17/17] RCU'd vfsmounts
Date: Thu, 3 Oct 2013 12:06:04 -0700
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To: Al Viro <viro@zeniv.linux.org.uk>
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On Thu, Oct 3, 2013 at 10:44 AM, Al Viro <viro@zeniv.linux.org.uk> wrote:
>
> Anyway, I've done nicer variants of that protection for everything except
> fuse (hadn't gotten around to it yet); see vfs.git#experimental now:

Ok, I did a quick test, and it looks ok here, so looking good for 3.13.

However, the new smp_mb() in mntput_no_expire() is quite noticeable in
the path lookup stress-test profiles. And I'm not seeing what that
allegedly protects against, especially if mnt_ns is NULL (ie all the
common important cases).

            Linus