From 8097b057dae9b2df250720b059f5e61aa8f4a95b Mon Sep 17 00:00:00 2001
From: NAKAMURA Gou <go.nakamura.yw@hitachi-solutions.com>
Date: Wed, 7 May 2014 20:02:54 +0900
Subject: [PATCH] add page_is_in_memobj() and page_is_multi_mapped()

These are page test functions.
---
 kernel/include/page.h | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

diff --git a/kernel/include/page.h b/kernel/include/page.h
index 7a35d867..e0290386 100644
--- a/kernel/include/page.h
+++ b/kernel/include/page.h
@@ -49,4 +49,21 @@ static inline void page_map(struct page *page)
 	ihk_atomic_inc(&page->count);
 }
 
+static inline int page_is_in_memobj(struct page *page)
+{
+	return (0
+			|| (page->mode == PM_MAPPED)
+			|| (page->mode == PM_PAGEIO)
+			|| (page->mode == PM_WILL_PAGEIO)
+			|| (page->mode == PM_DONE_PAGEIO)
+			|| (page->mode == PM_PAGEIO_EOF)
+			|| (page->mode == PM_PAGEIO_ERROR)
+			);
+}
+
+static inline int page_is_multi_mapped(struct page *page)
+{
+	return (ihk_atomic_read(&page->count) > 1);
+}
+
 #endif