add cpu_to_be* / be*_to_cpu helpers for userspace

add cpu_to_be* / be*_to_cpu helpers for userspace

diff --git a/include/xfs_arch.h b/include/xfs_arch.h
index f3c8b4cfe734da68d1252af751fe50d7734cc2b2..17d5e50cac363d0d2f076181e7cd3a56fdd096f8 100644 (file)
--- a/include/xfs_arch.h
+++ b/include/xfs_arch.h
@@ -40,6 +40,22 @@
 #undef XFS_NATIVE_HOST
 #endif
 
+#ifdef XFS_NATIVE_HOST
+#define cpu_to_be16(val)       ((__be16)(val))
+#define cpu_to_be32(val)       ((__be32)(val))
+#define cpu_to_be64(val)       ((__be64)(val))
+#define be16_to_cpu(val)       ((__uint16_t)(val)
+#define be32_to_cpu(val)       ((__uint32_t)(val))
+#define be64_to_cpu(val)       ((__uint64_t)(val))
+#else
+#define cpu_to_be16(val)       (__swab16((__uint16_t)(val)))
+#define cpu_to_be32(val)       (__swab32((__uint32_t)(val)))
+#define cpu_to_be64(val)       (__swab64((__uint64_t)(val)))
+#define be16_to_cpu(val)       (__swab16((__be16)(val)))
+#define be32_to_cpu(val)       (__swab32((__be32)(val)))
+#define be64_to_cpu(val)       (__swab64((__be64)(val)))
+#endif
+
 #endif /* __KERNEL__ */
 
 /* do we need conversion? */