On Wed, Jun 10, 2015 at 09:06:09AM +0900, Sergey Senozhatsky wrote:
> Hello,
>
> On (06/09/15 23:43), Minchan Kim wrote:
> [..]
> > @@ -446,6 +446,7 @@ struct mem_size_stats {
> > unsigned long anonymous_thp;
> > unsigned long swap;
> > u64 pss;
> > + u64 swap_pss;
> > };
> >
> > static void smaps_account(struct mem_size_stats *mss, struct page *page,
> > @@ -492,9 +493,20 @@ static void smaps_pte_entry(pte_t *pte, unsigned long
> > addr,
> > } else if (is_swap_pte(*pte)) {
> > swp_entry_t swpent = pte_to_swp_entry(*pte);
> >
> > - if (!non_swap_entry(swpent))
> > + if (!non_swap_entry(swpent)) {
> > + int mapcount;
> > +
> > mss->swap += PAGE_SIZE;
> > - else if (is_migration_entry(swpent))
> > + mapcount = swp_swapcount(swpent);
>
> I think this will break swapless builds (CONFIG_SWAP=n builds).
Thanks for the catching.
Will fix!
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