log_err("glfs_creat failed.\n");
ret = errno;
}
- /* file for read doesn't exist, create one */
- if (td_read(td) && glfs_lstat (g->fs, "f->file_name", &sb)){
- dprint(FD_FILE, "fio extend file %s to %ld\n", f->file_name, f->real_file_size);
- ret = glfs_ftruncate (g->fd, f->real_file_size);
- if (ret){
- log_err("failed fio extend file %s to %ld\n", f->file_name, f->real_file_size);
+ /* file for read doesn't exist or shorter than required, create/extend it */
+ if (td_read(td)){
+ if (glfs_lstat (g->fs, f->file_name, &sb) || sb.st_size < f->real_file_size){
+ dprint(FD_FILE, "fio extend file %s from %ld to %ld\n", f->file_name, sb.st_size, f->real_file_size);
+ ret = glfs_ftruncate (g->fd, f->real_file_size);
+ if (ret){
+ log_err("failed fio extend file %s to %ld\n", f->file_name, f->real_file_size);
+ }else{
+ unsigned long long left;
+ unsigned int bs;
+ char *b;
+ int r;
+
+ /* fill the file, copied from extend_file */
+ b = malloc(td->o.max_bs[DDIR_WRITE]);
+
+ left = f->real_file_size;
+ while (left && !td->terminate) {
+ bs = td->o.max_bs[DDIR_WRITE];
+ if (bs > left)
+ bs = left;
+
+ fill_io_buffer(td, b, bs, bs);
+
+ r = glfs_write(g->fd, b, bs, 0);
+ dprint(FD_IO, "fio write %d of %ld file %s\n", r, f->real_file_size, f->file_name);
+
+ if (r > 0) {
+ left -= r;
+ continue;
+ } else {
+ if (r < 0) {
+ int __e = errno;
+
+ if (__e == ENOSPC) {
+ if (td->o.fill_device)
+ break;
+ log_info("fio: ENOSPC on laying out "
+ "file, stopping\n");
+ break;
+ }
+ td_verror(td, errno, "write");
+ } else
+ td_verror(td, EIO, "write");
+
+ break;
+ }
+ }
+
+ if (b) free(b);
+ glfs_lseek(g->fd, 0, SEEK_SET);
+
+ if (td->terminate) {
+ dprint(FD_FILE, "terminate unlink %s\n", f->file_name);
+ unlink(f->file_name);
+ } else if (td->o.create_fsync) {
+ if (glfs_fsync(g->fd) < 0) {
+ dprint(FD_FILE, "failed to sync, close %s\n", f->file_name);
+ td_verror(td, errno, "fsync");
+ glfs_close(g->fd);
+ g->fd = NULL;
+ return 1;
+ }
+ }
+ }
}
}
-
dprint(FD_FILE, "fio %p created %s\n", g->fs, f->file_name);
f->fd = -1;
f->shadow_fd = -1;