Linus Torvalds wrote:
> 
> On Sat, 6 Jan 2001, Adam J. Richter wrote:
> >
> >       This sounds like a bug that I posted a fix for a long time ago.
> > cramfs calls bforget on the superblock area, destroying that block of
> > the ramdisk, even when the ramdisk does not contain a cramfs file system.
> > Normally, bforget is called on block that really can be trashed,
> > such as blocks release by truncate or unlink.
> 
> I'd really prefer just not letting bforget() touch BH_Protected buffers.
> bforget() is also used by other things than unlink/truncate: it's used by
> various partition codes etc, and it's used by the raid logic.

Yup, I backed out Adam's one-liner in favor of the attached one-liner. 
Tested on 2.4.0, but should patch cleanly to just about anything. ;-)

BTW Linus - you were of course right on the cramfs wanting 4096
blocksize... but without this fix, that doesn't matter much. ;-)

regards,
	David

-- 
David L. Parsley
Network Administrator
Roanoke College