diff options
Diffstat (limited to 'mm/filemap.c')
| -rw-r--r-- | mm/filemap.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/mm/filemap.c b/mm/filemap.c index c641edf553a..dea8a38bb2b 100644 --- a/mm/filemap.c +++ b/mm/filemap.c @@ -562,6 +562,17 @@ void wait_on_page_bit(struct page *page, int bit_nr) } EXPORT_SYMBOL(wait_on_page_bit); +int wait_on_page_bit_killable(struct page *page, int bit_nr) +{ + DEFINE_WAIT_BIT(wait, &page->flags, bit_nr); + + if (!test_bit(bit_nr, &page->flags)) + return 0; + + return __wait_on_bit(page_waitqueue(page), &wait, + sleep_on_page_killable, TASK_KILLABLE); +} + /** * add_page_wait_queue - Add an arbitrary waiter to a page's wait queue * @page: Page defining the wait queue of interest |