[ARM] 4791/1: S3C2412: Make fclk a parent of msysclk

[pandora-kernel.git] / mm / swap_state.c

diff --git a/mm/swap_state.c b/mm/swap_state.c
index 67daecb..b526356 100644 (file)
--- a/mm/swap_state.c
+++ b/mm/swap_state.c
@@ -74,6 +74,7 @@ static int __add_to_swap_cache(struct page *page, swp_entry_t entry,
 {
        int error;
 
+       BUG_ON(!PageLocked(page));
        BUG_ON(PageSwapCache(page));
        BUG_ON(PagePrivate(page));
        error = radix_tree_preload(gfp_mask);
@@ -83,7 +84,6 @@ static int __add_to_swap_cache(struct page *page, swp_entry_t entry,
                                                entry.val, page);
                if (!error) {
                        page_cache_get(page);
-                       SetPageLocked(page);
                        SetPageSwapCache(page);
                        set_page_private(page, entry.val);
                        total_swapcache_pages++;
@@ -99,15 +99,18 @@ static int add_to_swap_cache(struct page *page, swp_entry_t entry)
 {
        int error;
 
+       BUG_ON(PageLocked(page));
        if (!swap_duplicate(entry)) {
                INC_CACHE_INFO(noent_race);
                return -ENOENT;
        }
+       SetPageLocked(page);
        error = __add_to_swap_cache(page, entry, GFP_KERNEL);
        /*
         * Anon pages are already on the LRU, we don't run lru_cache_add here.
         */
        if (error) {
+               ClearPageLocked(page);
                swap_free(entry);
                if (error == -EEXIST)
                        INC_CACHE_INFO(exist_race);