* file will not get a swp_entry_t in its pte, but rather it is like
* any other file mapping (ie. marked !present and faulted in with
* tmpfs's .fault). So swapped out tmpfs mappings are tested here.
- *
- * However when tmpfs moves the page from pagecache and into swapcache,
- * it is still in core, but the find_get_page below won't find it.
- * No big deal, but make a note of it.
*/
page = find_get_page(mapping, pgoff);
+#ifdef CONFIG_SWAP
+ /* shmem/tmpfs may return swap: account for swapcache page too. */
+ if (radix_tree_exceptional_entry(page)) {
+ swp_entry_t swap = radix_to_swp_entry(page);
+ page = find_get_page(&swapper_space, swap.val);
+ }
+#endif
if (page) {
present = PageUptodate(page);
page_cache_release(page);