backend: don't complain about no IO done for create_only=1

[fio.git] / file.h

diff --git a/file.h b/file.h
index ac00ff877997531f2879fcc9e4dbe167f2da7634..e3864ee505971ed3733efbf055887df92f94e8af 100644 (file)
--- a/file.h
+++ b/file.h
@@ -63,6 +63,7 @@ enum fio_fallocate_mode {
        FIO_FALLOCATE_NONE      = 1,
        FIO_FALLOCATE_POSIX     = 2,
        FIO_FALLOCATE_KEEP_SIZE = 3,
+       FIO_FALLOCATE_NATIVE    = 4,
 };
 
 /*
@@ -90,6 +91,7 @@ struct fio_file {
 
        /*
         * size of the file, offset into file, and io size from that offset
+        * (be aware io_size is different from thread_options::io_size)
         */
        uint64_t real_file_size;
        uint64_t file_offset;
@@ -112,9 +114,12 @@ 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
@@ -146,14 +151,8 @@ 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))
-
-struct file_name {
-       struct flist_head list;
-       char *filename;
-};
+#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)             \
@@ -189,9 +188,15 @@ extern void close_and_free_files(struct thread_data *);
 extern uint64_t get_start_offset(struct thread_data *, struct fio_file *);
 extern int __must_check setup_files(struct thread_data *);
 extern int __must_check file_invalidate_cache(struct thread_data *, struct fio_file *);
+#ifdef __cplusplus
+extern "C" {
+#endif
 extern int __must_check generic_open_file(struct thread_data *, struct fio_file *);
 extern int __must_check generic_close_file(struct thread_data *, struct fio_file *);
 extern int __must_check generic_get_file_size(struct thread_data *, struct fio_file *);
+#ifdef __cplusplus
+}
+#endif
 extern int __must_check file_lookup_open(struct fio_file *f, int flags);
 extern int __must_check pre_read_files(struct thread_data *);
 extern unsigned long long get_rand_file_size(struct thread_data *td);
@@ -212,5 +217,6 @@ extern void filesetup_mem_free(void);
 extern void fio_file_reset(struct thread_data *, struct fio_file *);
 extern bool fio_files_done(struct thread_data *);
 extern bool exists_and_not_regfile(const char *);
+extern int fio_set_directio(struct thread_data *, struct fio_file *);
 
 #endif