Add create_on_open option

[fio.git] / filesetup.c

diff --git a/filesetup.c b/filesetup.c
index cfcfa9ae5e5f02398e25cbf49e14a9f033135686..088b77c3f566df9e7490000747de71e310c6ddfd 100644 (file)
--- a/filesetup.c
+++ b/filesetup.c
@@ -314,6 +314,8 @@ int generic_open_file(struct thread_data *td, struct fio_file *f)
                flags |= O_SYNC;
        if (f->filetype != FIO_TYPE_FILE)
                flags |= FIO_O_NOATIME;
+       if (td->o.create_on_open)
+               flags |= O_CREAT;
 
 open_again:
        if (td_write(td)) {
@@ -534,8 +536,11 @@ int setup_files(struct thread_data *td)
                if (f->filetype == FIO_TYPE_FILE &&
                    (f->io_size + f->file_offset) > f->real_file_size &&
                    !(td->io_ops->flags & FIO_DISKLESSIO)) {
-                       need_extend++;
-                       extend_size += (f->io_size + f->file_offset);
+                       if (!td->o.create_on_open) {
+                               need_extend++;
+                               extend_size += (f->io_size + f->file_offset);
+                       } else
+                               f->real_file_size = f->io_size + f->file_offset;
                        f->flags |= FIO_FILE_EXTEND;
                }
        }