swsusp: use inline functions for changing page flags

[GitHub/mt8127/android_kernel_alcatel_ttab.git] / include / linux / suspend.h

diff --git a/include/linux/suspend.h b/include/linux/suspend.h
index bf99bd49f8efd3af5f13004ca3c84c57bc532e91..a45b9f514492d7d7c3458052ff290d1533195f4d 100644 (file)
--- a/include/linux/suspend.h
+++ b/include/linux/suspend.h
@@ -8,6 +8,7 @@
 #include <linux/notifier.h>
 #include <linux/init.h>
 #include <linux/pm.h>
+#include <linux/mm.h>
 
 /* struct pbe is used for creating lists of pages that should be restored
  * atomically during the resume from disk, because the page frames they have
@@ -49,6 +50,38 @@ void __save_processor_state(struct saved_context *ctxt);
 void __restore_processor_state(struct saved_context *ctxt);
 unsigned long get_safe_page(gfp_t gfp_mask);
 
+/* Page management functions for the software suspend (swsusp) */
+
+static inline void swsusp_set_page_forbidden(struct page *page)
+{
+       SetPageNosave(page);
+}
+
+static inline int swsusp_page_is_forbidden(struct page *page)
+{
+       return PageNosave(page);
+}
+
+static inline void swsusp_unset_page_forbidden(struct page *page)
+{
+       ClearPageNosave(page);
+}
+
+static inline void swsusp_set_page_free(struct page *page)
+{
+       SetPageNosaveFree(page);
+}
+
+static inline int swsusp_page_is_free(struct page *page)
+{
+       return PageNosaveFree(page);
+}
+
+static inline void swsusp_unset_page_free(struct page *page)
+{
+       ClearPageNosaveFree(page);
+}
+
 /*
  * XXX: We try to keep some more pages free so that I/O operations succeed
  * without paging. Might this be more?