* If we have a mixed random workload, we may
* encounter blocks we already did IO to.
*/
- if (!td->o.ddir_nr && !random_map_free(td, f, block))
+ if (!td->o.ddir_nr == 1 && !random_map_free(td, f, block))
break;
idx = RAND_MAP_IDX(td, f, block);
if (get_next_rand_offset(td, f, ddir, &b))
return 1;
} else {
- if (f->last_pos >= f->real_file_size)
- return 1;
-
- b = f->last_pos / td->o.min_bs[ddir];
+ if (f->last_pos >= f->real_file_size) {
+ if (!td_random(td) || get_next_rand_offset(td, f, ddir, &b))
+ return 1;
+ } else
+ b = (f->last_pos - f->file_offset) / td->o.min_bs[ddir];
}
io_u->offset = (b * td->o.min_bs[ddir]) + f->file_offset;
buflen = (buflen + td->o.min_bs[ddir] - 1) & ~(td->o.min_bs[ddir] - 1);
}
+ if (io_u->offset + buflen > io_u->file->real_file_size)
+ buflen = td->o.min_bs[ddir];
+
return buflen;
}
static int fill_io_u(struct thread_data *td, struct io_u *io_u)
{
- /*
- * If using an iolog, grab next piece if any available.
- */
- if (td->o.read_iolog_file)
- return read_iolog_get(td, io_u);
-
/*
* see if it's time to sync
*/
io_u->ddir = get_rw_ddir(td);
+ /*
+ * See if it's time to switch to a new zone
+ */
+ if (td->zone_bytes >= td->o.zone_size) {
+ td->zone_bytes = 0;
+ io_u->file->last_pos += td->o.zone_skip;
+ td->io_skip_bytes += td->o.zone_skip;
+ }
+
/*
* No log, let the seq/rand engine retrieve the next buflen and
* position.
if (!io_u->buflen)
return 1;
+ if (io_u->offset + io_u->buflen > io_u->file->real_file_size)
+ return 1;
+
/*
* mark entry before potentially trimming io_u
*/
* If using a write iolog, store this entry.
*/
out:
- if (td->o.write_iolog_file)
- write_iolog_put(td, io_u);
-
+ log_io_u(td, io_u);
return 0;
}
return f;
}
+static int set_io_u_file(struct thread_data *td, struct io_u *io_u)
+{
+ struct fio_file *f;
+
+ do {
+ f = get_next_file(td);
+ if (!f)
+ return 1;
+
+set_file:
+ io_u->file = f;
+ get_file(f);
+
+ if (!fill_io_u(td, io_u))
+ break;
+
+ /*
+ * td_io_close() does a put_file() as well, so no need to
+ * do that here.
+ */
+ io_u->file = NULL;
+ td_io_close_file(td, f);
+ f->flags |= FIO_FILE_DONE;
+ td->nr_done_files++;
+
+ /*
+ * probably not the right place to do this, but see
+ * if we need to open a new file
+ */
+ if (td->nr_open_files < td->o.open_files &&
+ td->o.open_files != td->o.nr_files) {
+ f = find_next_new_file(td);
+
+ if (!f || td_io_open_file(td, f))
+ return 1;
+
+ goto set_file;
+ }
+ } while (1);
+
+ return 0;
+}
+
+
struct io_u *__get_io_u(struct thread_data *td)
{
struct io_u *io_u = NULL;
{
struct fio_file *f;
struct io_u *io_u;
- int ret;
io_u = __get_io_u(td);
if (!io_u)
if (io_u->file)
goto out;
- do {
- f = get_next_file(td);
- if (!f) {
- put_io_u(td, io_u);
- return NULL;
- }
-
-set_file:
- io_u->file = f;
- get_file(f);
-
- if (!fill_io_u(td, io_u))
- break;
-
- /*
- * td_io_close() does a put_file() as well, so no need to
- * do that here.
- */
- io_u->file = NULL;
- td_io_close_file(td, f);
- f->flags |= FIO_FILE_DONE;
- td->nr_done_files++;
-
- /*
- * probably not the right place to do this, but see
- * if we need to open a new file
- */
- if (td->nr_open_files < td->o.open_files &&
- td->o.open_files != td->o.nr_files) {
- f = find_next_new_file(td);
-
- if (!f || (ret = td_io_open_file(td, f))) {
- put_io_u(td, io_u);
- return NULL;
- }
- goto set_file;
- }
- } while (1);
-
- assert(io_u->file->flags & FIO_FILE_OPEN);
-
- if (td->zone_bytes >= td->o.zone_size) {
- td->zone_bytes = 0;
- f->last_pos += td->o.zone_skip;
- }
+ /*
+ * If using an iolog, grab next piece if any available.
+ */
+ if (td->o.read_iolog_file) {
+ if (read_iolog_get(td, io_u))
+ goto err_put;
+ } else if (set_io_u_file(td, io_u))
+ goto err_put;
+
+ f = io_u->file;
+ assert(f->flags & FIO_FILE_OPEN);
if (io_u->ddir != DDIR_SYNC) {
- if (!io_u->buflen) {
- put_io_u(td, io_u);
- return NULL;
- }
+ if (!io_u->buflen)
+ goto err_put;
f->last_pos = io_u->offset + io_u->buflen;
io_u->xfer_buf = io_u->buf;
io_u->xfer_buflen = io_u->buflen;
- if (td_io_prep(td, io_u)) {
- put_io_u(td, io_u);
- return NULL;
+ if (!td_io_prep(td, io_u)) {
+ fio_gettime(&io_u->start_time, NULL);
+ return io_u;
}
-
- fio_gettime(&io_u->start_time, NULL);
- return io_u;
+err_put:
+ put_io_u(td, io_u);
+ return NULL;
}
void io_u_log_error(struct thread_data *td, struct io_u *io_u)