From: Al Viro <viro@zeniv.linux.org.uk>
To: Amir Goldstein <amir73il@gmail.com>
Cc: lsf-pc@lists.linux-foundation.org,
linux-fsdevel <linux-fsdevel@vger.kernel.org>,
Jan Kara <jack@suse.cz>, Miklos Szeredi <miklos@szeredi.hu>,
Linux Containers <containers@lists.linux-foundation.org>,
James Bottomley <James.Bottomley@hansenpartnership.com>,
Seth Forshee <seth.forshee@canonical.com>
Subject: Re: [LSF/MM TOPIC] VFS rename fences/zones/whatuwanacallit
Date: Fri, 22 Feb 2019 07:17:22 +0000 [thread overview]
Message-ID: <20190222071722.GE2217@ZenIV.linux.org.uk> (raw)
In-Reply-To: <CAOQ4uxhBVhyyJv0+xSFQiGQEj60AbD3SADfKK40uAiC4GF2p9Q@mail.gmail.com>
On Fri, Feb 22, 2019 at 09:08:24AM +0200, Amir Goldstein wrote:
> Last minute proposal for fs track.
> This is something that's been on my mind for a while
> and I was wondering if others have interest in something like this.
>
> The idea is to declare a directory as a root of a subtree from
> which inodes cannot escape via rename/link.
'scalled "mount"... That's precisely the reason why cross-device
operations prevention is "different mounts", not just "different
superblocks". Why bother doing that on dentry level?
next prev parent reply other threads:[~2019-02-22 7:17 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-02-22 7:08 [LSF/MM TOPIC] VFS rename fences/zones/whatuwanacallit Amir Goldstein
2019-02-22 7:17 ` Al Viro [this message]
2019-02-22 7:34 ` Amir Goldstein
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