diff options
Diffstat (limited to 'mm/swapfile.c')
| -rw-r--r-- | mm/swapfile.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/mm/swapfile.c b/mm/swapfile.c index 7197864..4add436 100644 --- a/mm/swapfile.c +++ b/mm/swapfile.c @@ -2321,6 +2321,13 @@ int swapcache_prepare(swp_entry_t entry) return __swap_duplicate(entry, SWAP_HAS_CACHE); } +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)]; +} + /* * swap_lock prevents swap_map being freed. Don't grab an extra * reference on the swaphandle, it doesn't matter if it becomes unused. |