Hi,
On Mon, Apr 17, 2000 at 06:09:03PM +0200, Manfred Spraul wrote:
> "Stephen C. Tweedie" wrote:
> >
> > > And I don't understand why we have b_kiobuf at all: AFAICS the kiobuf
> > > functions could use b_dev_id.
> >
> > I wondered about that, but there's a problem if any device drivers
> > want to use that field themselves. In particular, if lvm or soft
> > raid decides to start using that field in buffer_heads passed into
> > those drivers, we're in trouble.
> >
> soft raid creates a new buffer head, and uses b_dev_id in that new
> buffer_head. I'll check lvm.
I can't see any problem in LVM either for now, but I avoided b_dev_id
because there isn't a clear-cut guideline on the restrictions on its
use.
--Stephen
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