Re: buffer cache & ufs changes (preliminary ffsv2 extattr support)

[Manuel Bouyer <bouyer%antioche.eu.org@localhost>]

On Wed, Jan 18, 2012 at 08:41:21PM +0000, YAMAMOTO Takashi wrote:
> 
> > I'm not sure I'm understanding you. There is only one set of extended
> > attributes blocks per vnode.
> 
> let's call the entity buf_targ_t.
> the most of vnode * for buffer cache API would be changed to take
> buf_targ_t * instead of vnode *.
> callers would be changed from bread(vp, ...) to
> bread(vp->v_contents_buf_targ, ...).
> you might want to do bread(ip->i_xattr_buf_targ, ...) for extended
> attribute.
> you need two buf_targ_t for a vnode.
> (v_contents_buf_targ and i_xattr_buf_targ in the above example.)

I like the idea. But that's a lot of work and is definitively not going to
be in netbsd-6

-- 
Manuel Bouyer <bouyer%antioche.eu.org@localhost>
     NetBSD: 26 ans d'experience feront toujours la difference
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