Re: kern/67919: Why nobody take serious to fix this bug?

On Mon, 31 Oct 2005, 16:08+0100, Uwe Doering wrote:

> Maxim Konovalov wrote:
> > [...]
> >
> > > >I was told the patch is incorrect.  It works in certain cases but
> > > >incorrect in general.
> > >
> > >Why is it incorrect ? I'm using it for year.
> >
> > Because you can't just throw away any chunk of data (e.g. it could be
> > a meta-data) without a risk to damage a filesystem.
>
> I wonder, could it really be meta-data?  I was under the impression
> that meta-data is a filesystem property and is therefore dealt with
> in the filesystem code, through i/o buffers.  Isn't the VM pager
> responsible for handling object contents (files etc.), only?  If so,
> it would be unfortunate to throw away pages of data but it certainly
> wouldn't damage the filesystem.

I'm under different (perhaps incorrect) impression.

For the record: ps_at_ just committed to HEAD a rate limit part of your
patch with a slightly different implementation.

-- 
Maxim Konovalov