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From: James Bottomley <James.Bottomley@HansenPartnership.com>
To: Matthew Wilcox <willy@infradead.org>,
	Seth Forshee <seth.forshee@canonical.com>
Cc: containers@lists.linux-foundation.org,
	Tyler Hicks <tyler.hicks@canonical.com>,
	Christian Brauner <christian.brauner@canonical.com>,
	linux-fsdevel@vger.kernel.org
Subject: Re: shiftfs status and future development
Date: Fri, 15 Jun 2018 09:09:15 -0700	[thread overview]
Message-ID: <1529078955.4048.12.camel@HansenPartnership.com> (raw)
In-Reply-To: <20180615152529.GA23527@bombadil.infradead.org>

On Fri, 2018-06-15 at 08:25 -0700, Matthew Wilcox wrote:
> On Fri, Jun 15, 2018 at 09:59:17AM -0500, Seth Forshee wrote:
> >  - Supports any id maps possible for a user namespace
> 
> Have we already ruled out storing the container's UID/GID/perms in an
> extended attribute, and having all the files owned by the owner of
> the container from the perspective of the unshifted fs.  Then shiftfs
> reads the xattr and presents the files with the container's idea of
> what the UID is?

I've got an experimental patch set that does the *mark* as an xattr. 
However the shift is still done through s_userns, which allows for
multiple shifts.

James

  parent reply	other threads:[~2018-06-15 16:09 UTC|newest]

Thread overview: 33+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-06-14 18:44 shiftfs status and future development Seth Forshee
2018-06-15 13:56 ` Serge E. Hallyn
2018-06-15 14:59   ` Seth Forshee
2018-06-15 15:25     ` Matthew Wilcox
2018-06-15 15:56       ` Aleksa Sarai
2018-06-15 16:09       ` James Bottomley [this message]
2018-06-15 17:04         ` Aleksa Sarai
2018-06-15 17:22           ` James Bottomley
2018-06-15 20:47             ` Seth Forshee
2018-06-15 21:09               ` James Bottomley
2018-06-15 21:35                 ` Seth Forshee
2018-06-16  3:03     ` James Bottomley
2018-06-18 13:40       ` Seth Forshee
2018-06-18 13:49         ` Amir Goldstein
2018-06-18 14:56         ` James Bottomley
2018-06-18 16:03           ` Seth Forshee
2018-06-18 17:11           ` Amir Goldstein
2018-06-18 19:53             ` Phil Estes
2018-06-21 20:16             ` Seth Forshee
2018-06-24 11:32               ` Amir Goldstein
2018-06-25 11:19             ` Christian Brauner
2018-06-27  7:48             ` James Bottomley
2018-06-27 10:17               ` Amir Goldstein
2018-07-03 16:54               ` Serge E. Hallyn
2018-07-03 17:08                 ` Stéphane Graber
2018-07-03 22:05                   ` Serge E. Hallyn
2018-06-15 14:54 ` Aleksa Sarai
2018-06-15 15:05   ` Seth Forshee
2018-06-15 15:28 ` James Bottomley
2018-06-15 15:46   ` Seth Forshee
2018-06-15 16:16     ` Christian Brauner
2018-06-15 16:35     ` James Bottomley
2018-06-15 20:17       ` Seth Forshee

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