Re: [PATCH 2/6] writeback: stop background writeback when belowbackground threshold

[Wu Fengguang]

On Wed, Sep 23, 2009 at 11:05:10PM +0800, Jens Axboe wrote:
> On Wed, Sep 23 2009, Wu Fengguang wrote:
> > Treat bdi_start_writeback(0) as a special request to do background write,
> > and stop such work when we are below the background dirty threshold.
> > 
> > Also simplify the (nr_pages <= 0) checks. Since we already pass in
> > nr_pages=LONG_MAX for WB_SYNC_ALL and background writes, we don't
> > need to worry about it being decreased to zero.
> 
> Good cleanup! Do you want me to collect these fixes, or how shall we
> handle this?

Thanks. I'm feeling OK with these patches(except the last one) as well
as Jan's busy loop fixing patch. Can you pull them to your tree?

Thanks,
Fengguang
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