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


> On Mon, Jan 16, 2012 at 10:00:05PM +0000, YAMAMOTO Takashi wrote:
>> have you considered to separate the entity being cached from vnode?
> What would this buy us ? the data are intimely tied to the inode, cleaning
> the cache when a file is deleted or would be more difficult, isn't it ?

it allows us to have more than one such entities for a vnode.
it's what you want here, isn't it?


>> iirc, irix called it "buffer cache target" or such.
>> your vtruncbuf2 function seems to imply needs to have separate
>> v_dirtyblkhd/v_cleanblkhd for each types.
> It's possible, I didn't look at vnode cleaning yet.
> -- 
> Manuel Bouyer <>
>      NetBSD: 26 ans d'experience feront toujours la difference
> --

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