Add support for fdatasync()
Adds a new option, fdatasync=. It's identical to the fsync= option,
but uses fdatasync() instead.
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
diff --git a/engines/libaio.c b/engines/libaio.c
index e452f1c..bd8ebb8 100644
--- a/engines/libaio.c
+++ b/engines/libaio.c
@@ -32,7 +32,7 @@
io_prep_pread(&io_u->iocb, f->fd, io_u->xfer_buf, io_u->xfer_buflen, io_u->offset);
else if (io_u->ddir == DDIR_WRITE)
io_prep_pwrite(&io_u->iocb, f->fd, io_u->xfer_buf, io_u->xfer_buflen, io_u->offset);
- else if (io_u->ddir == DDIR_SYNC)
+ else if (ddir_sync(io_u->ddir))
io_prep_fsync(&io_u->iocb, f->fd);
else
return 1;
@@ -104,6 +104,13 @@
io_u->error = errno;
return FIO_Q_COMPLETED;
+ } else if (io_u->ddir == DDIR_DATASYNC) {
+ if (ld->iocbs_nr)
+ return FIO_Q_BUSY;
+ if (fdatasync(io_u->file->fd) < 0)
+ io_u->error = errno;
+
+ return FIO_Q_COMPLETED;
}
ld->iocbs[ld->iocbs_nr] = &io_u->iocb;