On Fri, Dec 01, 2006 at 10:11:14AM +0900, OGAWA Hirofumi wrote:
> Nick Piggin <[email protected]> writes:
>
> > I would be happy if you come up with a quick fix, I'm just trying to
> > stamp out a few big bugs in mm. However I did prefer my way of moving
> > all the exapand code into generic_cont_expand, out of prepare_write, and
> > avoiding holding the target page locked while we're doing all the expand
> > work (strictly, you might be able to get away with this, but it is
> > fragile and ugly).
> >
> > AFAIKS, the only reason to use prepare_write is to avoid passing the
> > get_block into generic_cont_expand?
>
> IIRC, because generic_cont_expand is designed as really generic. It
> can also use for non moronic filesystem.
>
> In the case of reiserfs, it ->prepare_write might be necessary.
Yes I see :(
Well, maybe we should use your alternate patch, then.
I have a few questions on it.
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