Re: Linux 2.6.26-rc4

From: Al Viro
Date: Tue Jun 03 2008 - 12:41:21 EST


On Tue, Jun 03, 2008 at 09:35:47AM -0700, Linus Torvalds wrote:
>
>
> On Wed, 4 Jun 2008, Ian Kent wrote:
> >
> > The code we're talking about deals with a race between expiring and
> > mounting an autofs mount point at the same time.
> >
> > I'll have a closer look and see if I can make it work without turning
> > the dentry negative.
>
> Hmm.
>
> Can you walk me through this?
>
> If the dentry is unhashed, it means that it _either_
>
> - has already been deleted (rmdir'ed) or d_invalidate()'d. Right?
>
> I don't see why you should ever return the dentry in this case..

>From my reading of that code looks like it's been rmdir'ed. And no, I
don't understand what the hell is that code trying to do.

Ian, could you describe the race you are talking about?
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/