CacheFiles: Permit the page lock state to be monitored

[linux-2.6-omap-h63xx.git] / include / linux / pagemap.h

diff --git a/include/linux/pagemap.h b/include/linux/pagemap.h
index 076a7dc67c2bd25c89bec24ce036d719f1886dc3..34da5230faab4617cfe9bba4c43ac83cc083ab12 100644 (file)
--- a/include/linux/pagemap.h
+++ b/include/linux/pagemap.h
@@ -383,6 +383,11 @@ 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.
  *