diff options
| -rw-r--r-- | mm/page_io.c | 3 | ||||
| -rw-r--r-- | mm/swapfile.c | 1 |
2 files changed, 3 insertions, 1 deletions
diff --git a/mm/page_io.c b/mm/page_io.c index 242dba07545b..dc1af1e63221 100644 --- a/mm/page_io.c +++ b/mm/page_io.c @@ -262,6 +262,7 @@ int __swap_writepage(struct page *page, struct writeback_control *wbc, int ret, rw = WRITE; struct swap_info_struct *sis = page_swap_info(page); + BUG_ON(!PageSwapCache(page)); if (sis->flags & SWP_FILE) { struct kiocb kiocb; struct file *swap_file = sis->swap_file; @@ -333,6 +334,7 @@ int swap_readpage(struct page *page) int ret = 0; struct swap_info_struct *sis = page_swap_info(page); + BUG_ON(!PageSwapCache(page)); VM_BUG_ON_PAGE(!PageLocked(page), page); VM_BUG_ON_PAGE(PageUptodate(page), page); if (frontswap_load(page) == 0) { @@ -381,6 +383,7 @@ int swap_set_page_dirty(struct page *page) if (sis->flags & SWP_FILE) { struct address_space *mapping = sis->swap_file->f_mapping; + BUG_ON(!PageSwapCache(page)); return mapping->a_ops->set_page_dirty(page); } else { return __set_page_dirty_no_writeback(page); diff --git a/mm/swapfile.c b/mm/swapfile.c index 031713ab40ce..46502f551ac4 100644 --- a/mm/swapfile.c +++ b/mm/swapfile.c @@ -2724,7 +2724,6 @@ int swapcache_prepare(swp_entry_t entry) struct swap_info_struct *page_swap_info(struct page *page) { swp_entry_t swap = { .val = page_private(page) }; - BUG_ON(!PageSwapCache(page)); return swap_info[swp_type(swap)]; } |