doc: update fio doc for xnvme engine

[fio.git] / file.h

diff --git a/file.h b/file.h
index 5e2ef99851a2f33308c4cb96a8bcf7af64923233..e646cf22f6b7ec184fe4fb6ab94f8fb5918cb76e 100644 (file)
--- a/file.h
+++ b/file.h
@@ -126,12 +126,14 @@ struct fio_file {
        unsigned int last_write_idx;
 
        /*
-        * For use by the io engine for offset or private data storage
+        * For use by the io engine to store offset
         */
-       union {
-               uint64_t engine_pos;
-               void *engine_data;
-       };
+       uint64_t engine_pos;
+
+       /*
+        * For use by the io engine for private data storage
+        */
+       void *engine_data;
 
        /*
         * if io is protected by a semaphore, this is set
@@ -199,6 +201,7 @@ struct thread_data;
 extern void close_files(struct thread_data *);
 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_shared_file(struct thread_data *);
 extern int __must_check setup_files(struct thread_data *);
 extern int __must_check file_invalidate_cache(struct thread_data *, struct fio_file *);
 #ifdef __cplusplus
@@ -207,6 +210,7 @@ extern "C" {
 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 *);
+extern int __must_check generic_prepopulate_file(struct thread_data *, struct fio_file *);
 #ifdef __cplusplus
 }
 #endif
@@ -231,5 +235,6 @@ 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 *);
+extern void fio_file_free(struct fio_file *);
 
 #endif