[PATCH] set_page_count() macro safety
Fix set_page_count() macro to handle complex arguments.
Signed-off-by: Avishay Traeger <atraeger@cs.sunysb.edu>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
diff --git a/include/linux/mm.h b/include/linux/mm.h
index 83c651f..7ff5424 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -308,7 +308,7 @@
*/
#define get_page_testone(p) atomic_inc_and_test(&(p)->_count)
-#define set_page_count(p,v) atomic_set(&(p)->_count, v - 1)
+#define set_page_count(p,v) atomic_set(&(p)->_count, (v) - 1)
#define __put_page(p) atomic_dec(&(p)->_count)
extern void FASTCALL(__page_cache_release(struct page *));