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Diffstat (limited to 'mm/swapfile.c')
-rw-r--r--mm/swapfile.c11
1 files changed, 7 insertions, 4 deletions
diff --git a/mm/swapfile.c b/mm/swapfile.c
index cb08fa65819f..85aff8a42801 100644
--- a/mm/swapfile.c
+++ b/mm/swapfile.c
@@ -3455,10 +3455,15 @@ int swapcache_prepare(swp_entry_t entry)
return __swap_duplicate(entry, SWAP_HAS_CACHE);
}
+struct swap_info_struct *swp_swap_info(swp_entry_t entry)
+{
+ return swap_info[swp_type(entry)];
+}
+
struct swap_info_struct *page_swap_info(struct page *page)
{
- swp_entry_t swap = { .val = page_private(page) };
- return swap_info[swp_type(swap)];
+ swp_entry_t entry = { .val = page_private(page) };
+ return swp_swap_info(entry);
}
/*
@@ -3466,7 +3471,6 @@ struct swap_info_struct *page_swap_info(struct page *page)
*/
struct address_space *__page_file_mapping(struct page *page)
{
- VM_BUG_ON_PAGE(!PageSwapCache(page), page);
return page_swap_info(page)->swap_file->f_mapping;
}
EXPORT_SYMBOL_GPL(__page_file_mapping);
@@ -3474,7 +3478,6 @@ EXPORT_SYMBOL_GPL(__page_file_mapping);
pgoff_t __page_file_index(struct page *page)
{
swp_entry_t swap = { .val = page_private(page) };
- VM_BUG_ON_PAGE(!PageSwapCache(page), page);
return swp_offset(swap);
}
EXPORT_SYMBOL_GPL(__page_file_index);