From: Al Viro <viro@ZenIV.linux.org.uk>
To: Miklos Szeredi <miklos@szeredi.hu>
Cc: akpm@linux-foundation.org, linuxram@us.ibm.com,
linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [patch 7/7] vfs: mountinfo: show dominating group id
Date: Thu, 27 Mar 2008 22:42:31 +0000 [thread overview]
Message-ID: <20080327224231.GA10722@ZenIV.linux.org.uk> (raw)
In-Reply-To: <20080327122400.595798095@szeredi.hu>
On Thu, Mar 27, 2008 at 01:06:26PM +0100, Miklos Szeredi wrote:
> +propagate_from:X mount is slave and receives propagation from peer group X (*)
> unbindable mount is unbindable
>
> +(*) X is the closest dominant peer group under the process's root. If
> +X is the immediate master of the mount, or if there's no dominant peer
> +group under the same root, then only the "master:X" field is present
> +and not the "propagate_from:X" field.
Humm... How does one distinguish between these variants? Searching
in mountinfo for vfsmount with group ID of reported master? We can
live with that, but it looks like a subtlety that will be cheerfully
forgotten by userland code.
Will do for now, but I think that we'll need that piece of documentation
more noticable and not so easy to overlook.
next prev parent reply other threads:[~2008-03-27 22:43 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-03-27 12:06 [patch 0/7] vfs: mountinfo (v4) Miklos Szeredi
2008-03-27 12:06 ` [patch 1/7] vfs: mountinfo: add dentry_path() Miklos Szeredi
2008-03-27 12:06 ` [patch 2/7] vfs: mountinfo: add seq_file_root() Miklos Szeredi
2008-03-27 12:06 ` [patch 3/7] vfs: mountinfo: add mount ID Miklos Szeredi
2008-03-27 22:13 ` Al Viro
2008-03-27 12:06 ` [patch 4/7] vfs: mountinfo: add mount peer group ID Miklos Szeredi
2008-03-27 12:06 ` [patch 5/7] vfs: mountinfo: allow using process root Miklos Szeredi
2008-03-28 2:08 ` Al Viro
2008-03-28 8:59 ` Miklos Szeredi
2008-03-27 12:06 ` [patch 6/7] vfs: mountinfo: add /proc/<pid>/mountinfo Miklos Szeredi
2008-03-27 22:36 ` Al Viro
2008-03-28 8:48 ` Miklos Szeredi
2008-03-27 12:06 ` [patch 7/7] vfs: mountinfo: show dominating group id Miklos Szeredi
2008-03-27 22:42 ` Al Viro [this message]
2008-03-28 8:52 ` Miklos Szeredi
2008-03-30 18:51 ` Ram Pai
-- strict thread matches above, loose matches on Subject: below --
2008-03-26 21:11 [patch 0/7] vfs: mountinfo (v3) Miklos Szeredi
2008-03-26 21:11 ` [patch 7/7] vfs: mountinfo: show dominating group id Miklos Szeredi
2008-03-26 22:51 ` Al Viro
2008-03-27 8:34 ` Miklos Szeredi
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