linux-kernel - Re: [PATCH 21/38] union-mount: Support for mounting union mount file systems

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite for Android: free password hash cracker in your pocket

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:	Fri, 16 Jul 2010 17:05:40 -0400
From:	Valerie Aurora <vaurora@...hat.com>
To:	Ian Kent <raven@...maw.net>
Cc:	Alexander Viro <viro@...iv.linux.org.uk>,
	Miklos Szeredi <miklos@...redi.hu>,
	Jan Blunck <jblunck@...e.de>,
	Christoph Hellwig <hch@...radead.org>,
	linux-kernel@...r.kernel.org, linux-fsdevel@...r.kernel.org
Subject: Re: [PATCH 21/38] union-mount: Support for mounting union mount file systems

On Tue, Jul 13, 2010 at 12:47:02PM +0800, Ian Kent wrote:
> On Tue, Jun 15, 2010 at 11:39:51AM -0700, Valerie Aurora wrote:
> > +/**
> > + * prepare_mnt_union - do setup necessary for a union mount
> > + *
> > + * @topmost_mnt: vfsmount of topmost layer
> > + * @mntpnt: path of requested mountpoint
> > + *
> > + * A union mount clones the underlying read-only mounts and keeps them
> > + * in its own internal list of of vfsmounts, hanging off the
> > + * superblock.  The first underlying mount (at @mntpnt) has passed
> > + * check_mnt_union(), so we know we have at least one layer of union
> > + * mount underneath this one.  We union every underlying file system
> > + * that is mounted on the same mountpoint (well, pathname) and
> > + * read-only.
> 
> Last sentence looks a bit odd, would this be better?
> 
> We union every underlying file system that is mounted read-only on the
> same mountpoint (well, pathname).

Hm, I appear to have re-written that in the latest set of patches.

-VAL
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/