Re: [patch 1/2] [PATCH] mm: Save soft-dirty bits on swapped pages

[Minchan Kim]

On Thu, Aug 01, 2013 at 10:28:14AM +0400, Cyrill Gorcunov wrote:
> On Thu, Aug 01, 2013 at 03:16:32PM +0900, Minchan Kim wrote:
> > 
> > I don't get it. Could you correct me with below example?
> > 
> > Process A context
> >         try_to_unmap
> >                 swp_pte = swp_entry_to_pte /* change generic swp into arch swap */
> >                 swp_pte = pte_swp_mksoft_dirty(swp_pte);
> >                 set_pte_at(, swp_pte);
> > 
> > Process A context
> >         ..
> >         mincore_pte_range
> 		pte_t pte = *ptep;	<-- local copy of the pte value, in memory it remains the same
> 						with swap softdirty bit set

Argh, I missed that. Thank you!

Reviewed-by: Minchan Kim <minchan@xxxxxxxxxx>
-- 
Kind regards,
Minchan Kim
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