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SubjectRe: [PATCH 0/7] Per-bdi writeback flusher threads v20
On Fri, Sep 11 2009, Christoph Hellwig wrote:
> On Fri, Sep 11, 2009 at 09:42:41AM -0400, Theodore Tso wrote:
> > > v19 include:
> > >
> > > - Drop the max writeback pages patch from Ted. I think we should do
> > > something to that effect, but there's really no reason to entangle
> > > it with this patchset.
> >
> > That's reasonable, but I'd really like to know whether some VM hacker
> > going to try to deal with this during the 2.6.32 window? Such as
> > maybe Wu Fengguang's patches, perhaps?
> >
> > Or do I need to put in some kind of hack into ext4 ala what XFS did to
> > work around this problem until we can come up with a longer-term fix?
>
> I defintively want to see something in the VM, but I also agree with
> Jens' decision not to include it in the patchkit. It's not really
> related to the patchkit except for depending on it, and we still
> have a lot of discussion going on. If we can't get an agreement with
> the VM people by the end of the regular merge window I'm all for pushing
> your simple patch.

I'd also appreciate if we can keep Wu (or Ted's) patch out of the merge
until after -rc1 or at least with a few -git releases in between, so
it'll be easier to check for regressions.

--
Jens Axboe



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