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-rw-r--r--include/linux/pagemap.h5
1 files changed, 5 insertions, 0 deletions
diff --git a/include/linux/pagemap.h b/include/linux/pagemap.h
index 076a7dc67c2..34da5230faa 100644
--- a/include/linux/pagemap.h
+++ b/include/linux/pagemap.h
@@ -384,6 +384,11 @@ static inline void wait_on_page_writeback(struct page *page)
extern void end_page_writeback(struct page *page);
/*
+ * Add an arbitrary waiter to a page's wait queue
+ */
+extern void add_page_wait_queue(struct page *page, wait_queue_t *waiter);
+
+/*
* Fault a userspace page into pagetables. Return non-zero on a fault.
*
* This assumes that two userspace pages are always sufficient. That's