Re: [PATCH v2 10/10] mm: remove SWAP_[SUCCESS|AGAIN|FAIL]

[Sergey Senozhatsky]

Hello,


On (03/15/17 14:24), Minchan Kim wrote:
> There is no user for it. Remove it.
> 

there is one.

mm/rmap.c

try_to_unmap_one()
...
        if (unlikely(PageSwapBacked(page) != PageSwapCache(page))) {
                WARN_ON_ONCE(1);
                ret = SWAP_FAIL;
                page_vma_mapped_walk_done(&pvmw);
                break;
        }

        -ss