From: "J. R. Okajima" <hooanon05@yahoo.co.jp>
To: Miklos Szeredi <miklos@szeredi.hu>
Cc: Alessandro Pignotti <alexpigna.dev@gmail.com>,
Linux-Fsdevel <linux-fsdevel@vger.kernel.org>
Subject: Re: [Patch] Support overriding uid/gid in overlayfs
Date: Fri, 01 Feb 2013 13:45:34 +0900 [thread overview]
Message-ID: <7500.1359693934@jrobl> (raw)
In-Reply-To: <CAJfpegt4=BBXM4rGzT6WqSZUhn8vLjbFU0mPHUSkysL9_VQTWA@mail.gmail.com>
Miklos Szeredi:
> They don't "solve" this, it's a fundamental property of the
> implementation. Overlayfs and union-mounts behave as if copy-up was a
> "bind mount" over the file in question. Yes, it's a namespace trick
> but it seems to work in most situations.
It must be a sad news for overlayfs users who have every met "non-most"
situations.
> The point was that uid/gid was to be overridden with *different*
> values for each overlayfs instance. So implementing uid/gid
> overriding in the lower fs doesn't help.
For the scenario which Alessandro Pignotti posted,
- everything on the lower fs are owned by a single user, by the
overriding feature.
- everything on the upper fs are owned by the user natively.
Isn't it enough?
J. R. Okajima
prev parent reply other threads:[~2013-02-01 4:45 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <1358254695.3380.16.camel@avalon>
2013-01-25 11:08 ` [Patch] Support overriding uid/gid in overlayfs Miklos Szeredi
2013-01-28 15:58 ` Alessandro Pignotti
2013-01-31 16:15 ` Miklos Szeredi
2013-01-31 17:01 ` J. R. Okajima
2013-01-31 17:40 ` Miklos Szeredi
2013-02-01 4:45 ` J. R. Okajima [this message]
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=7500.1359693934@jrobl \
--to=hooanon05@yahoo.co.jp \
--cc=alexpigna.dev@gmail.com \
--cc=linux-fsdevel@vger.kernel.org \
--cc=miklos@szeredi.hu \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.