#include <assert.h>
#include "fio.h"
-#include "os.h"
static LIST_HEAD(engine_list);
assert((io_u->flags & IO_U_F_FLIGHT) == 0);
io_u->flags |= IO_U_F_FLIGHT;
+ assert(io_u->file->flags & FIO_FILE_OPEN);
+
io_u->error = 0;
io_u->resid = 0;
ret = td->io_ops->queue(td, io_u);
+ if (ret == FIO_Q_QUEUED || ret == FIO_Q_COMPLETED)
+ get_file(io_u->file);
+
if (ret == FIO_Q_QUEUED) {
int r;
td->io_u_queued++;
- if (td->io_u_queued > td->iodepth_batch) {
+ if (td->io_u_queued > td->o.iodepth_batch) {
r = td_io_commit(td);
if (r < 0)
return r;
int td_io_init(struct thread_data *td)
{
- if (td->io_ops->init)
- return td->io_ops->init(td);
+ int ret = 0;
- return 0;
+ if (td->io_ops->init) {
+ ret = td->io_ops->init(td);
+ if (ret && td->o.iodepth > 1)
+ log_err("fio: io engine init failed. Perhaps try reducing io dpeth?\n");
+ }
+
+ return ret;
}
int td_io_commit(struct thread_data *td)
int td_io_open_file(struct thread_data *td, struct fio_file *f)
{
- if (td->io_ops->open_file(td, f))
+ if (td->io_ops->open_file(td, f)) {
+ if (td->error == EINVAL && td->o.odirect)
+ log_err("fio: destination does not support O_DIRECT\n");
+ if (td->error == EMFILE)
+ log_err("fio: try reducing/setting openfiles (failed at %u of %u)\n", td->nr_open_files, td->o.nr_files);
+
return 1;
+ }
+
+ if (f->filetype == FIO_TYPE_PIPE) {
+ if (td_random(td)) {
+ log_err("fio: can't seek on pipes (no random io)\n");
+ goto err;
+ }
+ }
f->last_free_lookup = 0;
f->last_completed_pos = 0;
f->last_pos = 0;
f->flags |= FIO_FILE_OPEN;
+ f->flags &= ~FIO_FILE_CLOSING;
+
+ if (td->io_ops->flags & FIO_DISKLESSIO)
+ goto done;
+
+ if (td->o.invalidate_cache && file_invalidate_cache(td, f))
+ goto err;
+
+ if (td->o.fadvise_hint &&
+ (f->filetype == FIO_TYPE_BD || f->filetype == FIO_TYPE_FILE)) {
+
+ int flags;
+
+ if (td_random(td))
+ flags = POSIX_FADV_RANDOM;
+ else
+ flags = POSIX_FADV_SEQUENTIAL;
+
+ if (fadvise(f->fd, f->file_offset, f->io_size, flags) < 0) {
+ td_verror(td, errno, "fadvise");
+ goto err;
+ }
+ }
if (f->file_map)
memset(f->file_map, 0, f->num_maps * sizeof(long));
+done:
td->nr_open_files++;
+ get_file(f);
return 0;
+err:
+ if (td->io_ops->close_file)
+ td->io_ops->close_file(td, f);
+ return 1;
}
void td_io_close_file(struct thread_data *td, struct fio_file *f)
{
- if (f->flags & FIO_FILE_OPEN) {
- if (td->io_ops->close_file)
- td->io_ops->close_file(td, f);
- td->nr_open_files--;
- f->flags &= ~FIO_FILE_OPEN;
- }
+ /*
+ * mark as closing, do real close when last io on it has completed
+ */
+ f->flags |= FIO_FILE_CLOSING;
+
+ put_file(td, f);
}