diff options
Diffstat (limited to 'mm/vmscan.c')
| -rw-r--r-- | mm/vmscan.c | 14 |
1 files changed, 13 insertions, 1 deletions
diff --git a/mm/vmscan.c b/mm/vmscan.c index bc5d4f43036..71a02e29503 100644 --- a/mm/vmscan.c +++ b/mm/vmscan.c @@ -290,11 +290,23 @@ static void handle_write_error(struct address_space *mapping, unlock_page(page); } +/* possible outcome of pageout() */ +typedef enum { + /* failed to write page out, page is locked */ + PAGE_KEEP, + /* move page to the active list, page is locked */ + PAGE_ACTIVATE, + /* page has been sent to the disk successfully, page is unlocked */ + PAGE_SUCCESS, + /* page is clean and locked */ + PAGE_CLEAN, +} pageout_t; + /* * pageout is called by shrink_page_list() for each dirty page. * Calls ->writepage(). */ -pageout_t pageout(struct page *page, struct address_space *mapping) +static pageout_t pageout(struct page *page, struct address_space *mapping) { /* * If the page is dirty, only perform writeback if that write |