On Fri, 2006-03-10 at 00:23 -0800, Andrew Morton wrote:
> Arjan van de Ven <[email protected]> wrote:
> >
> >
> > > I'm not sure that PageMappedToDisk() gets set in all the right places
> > > though - it's mainly for the `nobh' handling and block_prepare_write()
> > > would need to be taught to set it. I guess that'd be a net win, even if
> > > only ext3 uses it..
> >
> > btw is nobh mature enough yet to become the default, or to just go away
> > entirely as option ?
>
> I don't know how much usage it's had, sorry. It's only allowed in
> data=writeback mode and not many people seem to use even that.
would you be prepared to turn it on by default in -mm for a bit to see
how it holds up? The concept seems valuable in itself, so much so that I
feel this should be 1) on always by default when possible and 2) isn't
really the kind of thing that should be a long term option; not having
it almost is a -o pleaseAddThisBug option for each bug fixed.
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