On (03/16/17 14:33), Minchan Kim wrote: [..] > "There is no user for it" > > I was liar so need to be a honest guy.
ha-ha-ha. I didn't say that :) [..] > @@ -1414,7 +1414,7 @@ static bool try_to_unmap_one(struct page *page, struct > vm_area_struct *vma, > */ > if (unlikely(PageSwapBacked(page) != > PageSwapCache(page))) { > WARN_ON_ONCE(1); > - ret = SWAP_FAIL; > + ret = false; > page_vma_mapped_walk_done(&pvmw); > break; > } one thing to notice here is that 'ret = false' and 'ret = SWAP_FAIL' are not the same and must produce different results. `ret' is bool and SWAP_FAIL was 2. it's return 1 vs return 0, isn't it? so was there a bug before? -ss