Re: [PATCH] cramfs corruption after BLKFLSBUF on loop device

Olaf Hering
2006-06-03T13:13:20Z

On Fri, Jun 02, Andrew Morton wrote:

> On Fri, 2 Jun 2006 21:37:02 +0200
> Olaf Hering <olh@suse.de> wrote:
>
> > > I'd suggest you run SetPagePrivate() and SetPageChecked() on the locked
> > > page and implement a_ops.releasepage(), which will fail if PageChecked(),
> > > and will succeed otherwise:
> >
> > No leak without tweaking PG_private.
>
> Odd. That would imply that PG_private is being left set somehow (it will
> make the page unreclaimable). But I don't see it.
>
> Plus if we have lots of PagePrivate() pages floating about you should see
> your ->releasepage() being called.

The change from Chris leaks as well, but very very slowly.

Please wait while I dig into the page states...