options: remove dependency of 'o' being first in 'td'

[fio.git] / options.h

diff --git a/options.h b/options.h
index 539a63667afb505ad6b61a8bc9b299297a8ed9dd..874141dcd29c4208e93ebb6914747765951f1a9f 100644 (file)
--- a/options.h
+++ b/options.h
@@ -9,8 +9,6 @@
 #include "flist.h"
 #include "lib/types.h"
 
-#define td_var_offset(var)     ((size_t) &((struct thread_options *)0)->var)
-
 int add_option(struct fio_option *);
 void invalidate_profile_options(const char *);
 extern char *exec_profile;
@@ -30,7 +28,7 @@ extern bool __fio_option_is_set(struct thread_options *, unsigned int off);
 
 #define fio_option_is_set(__td, name)                                  \
 ({                                                                     \
-       const unsigned int off = td_var_offset(name);                   \
+       const unsigned int off = offsetof(struct thread_options, name); \
        bool __r = __fio_option_is_set((__td), off);                    \
        __r;                                                            \
 })