linux-ext4 - Re: [PATCH] ext4: enable acls and user

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Message-ID: <20110224183126.GI23042@quack.suse.cz>
Date:	Thu, 24 Feb 2011 19:31:26 +0100
From:	Jan Kara <jack@...e.cz>
To:	Ted Ts'o <tytso@....edu>
Cc:	Jan Kara <jack@...e.cz>, Eric Sandeen <sandeen@...hat.com>,
	ext4 development <linux-ext4@...r.kernel.org>
Subject: Re: [PATCH] ext4: enable acls and user_xattr by default

On Thu 24-02-11 11:49:13, Ted Ts'o wrote:
> On Thu, Feb 24, 2011 at 02:57:40PM +0100, Jan Kara wrote:
> >   I've actually tried that before posting my email and it's not like that.
> > I did:
> > jack@...ck:~/source> echo 'aaa' >/tmp/f
> > jack@...ck:~/source> chmod 600 /tmp/f
> > jack@...ck:~/source> setfacl -m u:nobody:rw /tmp/f
> > jack@...ck:~/source> sudo su nobody -c "cat /tmp/f"
> > aaa
> > jack@...ck:~/source> sudo su news -c "cat /tmp/f"
> > cat: /tmp/f: Permission denied
> 
> Hmm... yes, but it's a bit more complicated.  Look at this, and note
> how remounting the file system without acl's gave the group "users" rw
> access to the file /mnt/f.
  Ah OK, I see. So it's both ways ;)

								Honza
-- 
Jan Kara <jack@...e.cz>
SUSE Labs, CR
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