diff options
Diffstat (limited to 'mm/swap_state.c')
| -rw-r--r-- | mm/swap_state.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/mm/swap_state.c b/mm/swap_state.c index 797c3831cbec..7a3ece0b5a3b 100644 --- a/mm/swap_state.c +++ b/mm/swap_state.c @@ -75,6 +75,7 @@ int add_to_swap_cache(struct page *page, swp_entry_t entry, gfp_t gfp_mask) BUG_ON(!PageLocked(page)); BUG_ON(PageSwapCache(page)); BUG_ON(PagePrivate(page)); + BUG_ON(!PageSwapBacked(page)); error = radix_tree_preload(gfp_mask); if (!error) { page_cache_get(page); @@ -303,6 +304,7 @@ struct page *read_swap_cache_async(swp_entry_t entry, gfp_t gfp_mask, * May fail (-ENOMEM) if radix-tree node allocation failed. */ set_page_locked(new_page); + SetPageSwapBacked(new_page); err = add_to_swap_cache(new_page, entry, gfp_mask & GFP_KERNEL); if (likely(!err)) { /* @@ -312,6 +314,7 @@ struct page *read_swap_cache_async(swp_entry_t entry, gfp_t gfp_mask, swap_readpage(NULL, new_page); return new_page; } + ClearPageSwapBacked(new_page); clear_page_locked(new_page); swap_free(entry); } while (err != -ENOMEM); |