linux-kernel - Re: [PATCH 0/3] Fixes for vfs-scale and vfs-automount

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Message-ID: <AANLkTim_JWgT_kK506Lu8-vNC0rkBhCvO+7-CFb66nNP@mail.gmail.com>
Date:	Wed, 23 Feb 2011 08:37:17 -0800
From:	Linus Torvalds <torvalds@...ux-foundation.org>
To:	Ian Kent <raven@...maw.net>
Cc:	Nick Piggin <npiggin@...e.de>,
	Trond Myklebust <Trond.Myklebust@...app.com>,
	David Howells <dhowells@...hat.com>,
	Al Viro <viro@...iv.linux.org.uk>,
	Kernel Mailing List <linux-kernel@...r.kernel.org>,
	linux-fsdevel <linux-fsdevel@...r.kernel.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Linux NFS Mailing List <linux-nfs@...r.kernel.org>
Subject: Re: [PATCH 0/3] Fixes for vfs-scale and vfs-automount

On Tue, Feb 22, 2011 at 11:22 PM, Ian Kent <raven@...maw.net> wrote:
>
> Nick, what stops a dentry from going away during the rcu-walk?

Dentries (and now inodes) are all RCU-free'd. So the dentry might "go
away", but it wouldn't actually be physically free'd, and you can
still access it.

                            Linus
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