diff options
| -rw-r--r-- | include/linux/pagemap.h | 1 | ||||
| -rw-r--r-- | mm/filemap.c | 16 |
2 files changed, 17 insertions, 0 deletions
diff --git a/include/linux/pagemap.h b/include/linux/pagemap.h index 26946ad483b..0aa258f4678 100644 --- a/include/linux/pagemap.h +++ b/include/linux/pagemap.h @@ -455,6 +455,7 @@ int add_to_page_cache_locked(struct page *page, struct address_space *mapping, pgoff_t index, gfp_t gfp_mask); int add_to_page_cache_lru(struct page *page, struct address_space *mapping, pgoff_t index, gfp_t gfp_mask); +extern void delete_from_page_cache(struct page *page); extern void remove_from_page_cache(struct page *page); extern void __remove_from_page_cache(struct page *page); int replace_page_cache_page(struct page *old, struct page *new, gfp_t gfp_mask); diff --git a/mm/filemap.c b/mm/filemap.c index c1459f2cdb5..e7b59785ceb 100644 --- a/mm/filemap.c +++ b/mm/filemap.c @@ -155,6 +155,22 @@ void remove_from_page_cache(struct page *page) } EXPORT_SYMBOL(remove_from_page_cache); +/** + * delete_from_page_cache - delete page from page cache + * @page: the page which the kernel is trying to remove from page cache + * + * This must be called only on pages that have + * been verified to be in the page cache and locked. + * It will never put the page into the free list, + * the caller has a reference on the page. + */ +void delete_from_page_cache(struct page *page) +{ + remove_from_page_cache(page); + page_cache_release(page); +} +EXPORT_SYMBOL(delete_from_page_cache); + static int sync_page(void *word) { struct address_space *mapping; |