On Mon, 7 May 2001, Linus Torvalds wrote:
>
> On Mon, 7 May 2001, Marcelo Tosatti wrote:
> >
> > On 7 May 2001, Linus Torvalds wrote:
> >
> > > But it is important to re-calculate the deadness after getting the
> > > lock. Before, it was just an informed guess. After the lock, it is
> > > knowledge. And you can use informed guesses for heuristics, but you
> > > must _not_ use them for any serious decisions.
> >
> > And thats what swap_writepage() is doing:
>
> Ehh.. swap_writepage() is called with the page locked. So it _can_ depend
> on it.
So the "dead_swap_page" logic is _not_ buggy and you are full of shit when
telling Alan to revert the change. (sorry, I could not avoid this one)
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