X-Git-Url: https://git.kernel.dk/?a=blobdiff_plain;f=file.h;h=9801bb584007558da4d7c2a17e78f50133c22fb6;hb=74558486d208cc073ef3f3f963a51381b9215a04;hp=c403b176827740f10afbc9dd6391b78c928b681d;hpb=bf651609cda6c8968edb49d80efe7ee007983f61;p=fio.git

diff --git a/file.h b/file.h
index c403b176..9801bb58 100644
--- a/file.h
+++ b/file.h
@@ -113,9 +113,12 @@ struct fio_file {
 	unsigned int last_write_idx;
 
 	/*
-	 * For use by the io engine
+	 * For use by the io engine for offset or private data storage
 	 */
-	uint64_t engine_data;
+	union {
+		uint64_t engine_pos;
+		void *engine_data;
+	};
 
 	/*
 	 * if io is protected by a semaphore, this is set
@@ -147,9 +150,8 @@ struct fio_file {
 	struct disk_util *du;
 };
 
-#define FILE_ENG_DATA(f)	((void *) (uintptr_t) (f)->engine_data)
-#define FILE_SET_ENG_DATA(f, data)	\
-	((f)->engine_data = (uintptr_t) (data))
+#define FILE_ENG_DATA(f)		((f)->engine_data)
+#define FILE_SET_ENG_DATA(f, data)	((f)->engine_data = (data))
 
 #define FILE_FLAG_FNS(name)						\
 static inline void fio_file_set_##name(struct fio_file *f)		\