X-Git-Url: https://git.kernel.dk/?a=blobdiff_plain;f=os.h;h=3f83905d5b31f4adbf5a7f1c74db8b2a444049ef;hb=cb25df61fbe19065b41bee131d19335d615c676b;hp=a2699dd2d0b14e69c5091e412bf20a2dab32045f;hpb=0268b8ba7b2c79c669323cb1fcc0b045b84313f1;p=fio.git

diff --git a/os.h b/os.h
index a2699dd2..3f83905d 100644
--- a/os.h
+++ b/os.h
@@ -51,7 +51,15 @@
 #define SHM_HUGETLB			0
 #define FIO_HUGE_PAGE			0
 #else
-#define FIO_HUGE_PAGE			(4096 * 1024)
+#ifndef FIO_HUGE_PAGE
+#define FIO_HUGE_PAGE			4194304
+#endif
+#endif
+
+#if __GNUC__ < 3
+#define __must_check
+#else
+#define __must_check			__attribute__((warn_unused_result))
 #endif
 
 #endif