From: Al Viro <viro@ftp.linux.org.uk>
To: Miklos Szeredi <miklos@szeredi.hu>
Cc: linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org,
akpm@linux-foundation.org, torvalds@linux-foundation.org
Subject: Re: [RFC PATCH] file as directory
Date: Wed, 23 May 2007 11:24:38 +0100 [thread overview]
Message-ID: <20070523102437.GS4095@ftp.linux.org.uk> (raw)
In-Reply-To: <E1HqnmR-0001dI-00@dorka.pomaz.szeredi.hu>
On Wed, May 23, 2007 at 12:09:19PM +0200, Miklos Szeredi wrote:
> Right. After locking vfsmount_lock, mount_dironfile() should recheck
> if there was a race and bail out.
Owww... Not pretty, that...
> I don't think the filesystem ought to try _creating_ a vfsmount. I
> imagine, that the fs has already a kernel-internal mounted for this
> kind of stuff, and it just supplies a dentry from that. The vfsmount
> isn't actually important, but it should be readily available, and it's
> easier to clone from a vfsmount/dentry pair.
I don't get it. What's the point of that exercise, then? When do you
create that kernel-internal mount?
> As I said, the superblock should be persistent, so we'll get a stable
> st_dev for multiple mounts.
OK, but then I guess I don't understand the intended use.
next prev parent reply other threads:[~2007-05-23 10:24 UTC|newest]
Thread overview: 39+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-05-22 18:48 [RFC PATCH] file as directory Miklos Szeredi
2007-05-22 22:10 ` Al Viro
2007-05-23 6:36 ` Miklos Szeredi
2007-05-23 7:03 ` Al Viro
2007-05-23 7:19 ` Miklos Szeredi
2007-05-23 7:36 ` Al Viro
2007-05-23 8:05 ` Miklos Szeredi
2007-05-23 8:29 ` Al Viro
2007-05-23 9:03 ` Miklos Szeredi
2007-05-23 9:58 ` Al Viro
2007-05-23 10:14 ` Miklos Szeredi
2007-05-23 9:16 ` Jan Blunck
2007-05-23 9:28 ` Miklos Szeredi
2007-05-23 12:34 ` Trond Myklebust
2007-05-23 12:40 ` Al Viro
2007-05-23 9:21 ` Jan Blunck
2007-05-23 9:35 ` Miklos Szeredi
2007-05-24 12:07 ` Pavel Machek
2007-05-28 14:43 ` Miklos Szeredi
2007-05-22 23:26 ` Shaya Potter
2007-05-23 6:39 ` Miklos Szeredi
2007-05-23 9:51 ` Al Viro
2007-05-23 10:09 ` Miklos Szeredi
2007-05-23 10:24 ` Miklos Szeredi
2007-05-23 10:24 ` Al Viro [this message]
2007-05-23 10:40 ` Miklos Szeredi
2007-05-23 11:39 ` Al Viro
2007-05-23 12:16 ` Al Viro
2007-05-23 13:01 ` Miklos Szeredi
2007-05-23 13:51 ` Al Viro
2007-05-23 14:32 ` Miklos Szeredi
2007-05-23 15:06 ` Al Viro
2007-05-23 15:25 ` Miklos Szeredi
2007-05-23 15:37 ` Al Viro
2007-05-23 15:55 ` Miklos Szeredi
2007-05-23 13:23 ` Ph. Marek
2007-05-23 13:54 ` Al Viro
2007-05-23 12:01 ` Jan Engelhardt
2007-05-23 13:20 ` Jaroslav Sykora
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