Re: [PATCH] fs-private data in struct block_device

[Jeff Garzik <jgarzik@pobox.com>]

On Thu, Jan 01, 2004 at 03:10:17PM -0800, Andrew Morton wrote:
> > --- 1.276/include/linux/fs.h	Mon Dec 29 22:37:20 2003
> > +++ edited/include/linux/fs.h	Thu Jan  1 13:42:08 2004
> > @@ -353,6 +353,7 @@
> >  	int			bd_invalidated;
> >  	struct gendisk *	bd_disk;
> >  	struct list_head	bd_list;
> > +	unsigned long		bd_fspriv; /* file-system private data */
> >  };
> >  
> >  /*
> 
> Seems sane.  You'll need to decide whether that field should be operated
> upon with atomic ops.  If so, document it.  If not, document its locking,
> please.

It looks like the standard normally-a-pointer thing that's completely
managed opaquely to the block device layer.  In fact, I actually prefer
that these be (void*) unless there is a common use as an integer.

	Jeff