X-Git-Url: https://git.kernel.dk/?a=blobdiff_plain;f=os%2Fos-linux.h;h=9f547fffe635ad0f652b1baa6a579032bdacc801;hb=89c1707cb512e562b55b56c268f7fad612be6f04;hp=a36552ba68ba93caf6ca58e5fc9761fc53c0b88d;hpb=47f767c113be7448eb8aa9d4a9f9aa8f760ef642;p=fio.git

diff --git a/os/os-linux.h b/os/os-linux.h
index a36552ba..9f547fff 100644
--- a/os/os-linux.h
+++ b/os/os-linux.h
@@ -1,6 +1,8 @@
 #ifndef FIO_OS_LINUX_H
 #define FIO_OS_LINUX_H
 
+#define	FIO_OS	os_linux
+
 #include <sys/ioctl.h>
 #include <sys/uio.h>
 #include <sys/syscall.h>
@@ -12,6 +14,7 @@
 #include <linux/unistd.h>
 #include <linux/raw.h>
 #include <linux/major.h>
+#include <endian.h>
 
 #include "indirect.h"
 #include "binject.h"
@@ -89,8 +92,8 @@ typedef struct drand48_data os_random_state_t;
 	sched_getaffinity((pid), (ptr))
 #endif
 
-#define fio_cpu_clear(mask, cpu)	CPU_CLR((cpu), (mask))
-#define fio_cpu_set(mask, cpu)		CPU_SET((cpu), (mask))
+#define fio_cpu_clear(mask, cpu)	(void) CPU_CLR((cpu), (mask))
+#define fio_cpu_set(mask, cpu)		(void) CPU_SET((cpu), (mask))
 
 static inline int fio_cpuset_init(os_cpu_mask_t *mask)
 {
@@ -286,6 +289,18 @@ static inline int fio_lookup_raw(dev_t dev, int *majdev, int *mindev)
 #define FIO_MADV_FREE	MADV_REMOVE
 #endif
 
+#if __BYTE_ORDER == __LITTLE_ENDIAN
+#define FIO_LITTLE_ENDIAN
+#elif __BYTE_ORDER == __BIG_ENDIAN
+#define FIO_BIG_ENDIAN
+#else
+#error "Unknown endianness"
+#endif
+
+#define fio_swap16(x)	__bswap_16(x)
+#define fio_swap32(x)	__bswap_32(x)
+#define fio_swap64(x)	__bswap_64(x)
+
 #define CACHE_LINE_FILE	\
 	"/sys/devices/system/cpu/cpu0/cache/index0/coherency_line_size"