engines/libzbc: add support for the get_max_open_zones io op

[fio.git] / engines / rbd.c

diff --git a/engines/rbd.c b/engines/rbd.c
index 7d4d3faf9c5318462fb7c153b7e96a8437e40dc2..c6203d4c2a68173da20073f3f75863b6ec63ed38 100644 (file)
--- a/engines/rbd.c
+++ b/engines/rbd.c
@@ -200,6 +200,14 @@ static int _fio_rbd_connect(struct thread_data *td)
                log_err("rados_create failed.\n");
                goto failed_early;
        }
+       if (o->pool_name == NULL) {
+               log_err("rbd pool name must be provided.\n");
+               goto failed_early;
+       }
+       if (!o->rbd_name) {
+               log_err("rbdname must be provided.\n");
+               goto failed_early;
+       }
 
        r = rados_conf_read_file(rbd->cluster, NULL);
        if (r < 0) {
@@ -219,12 +227,30 @@ static int _fio_rbd_connect(struct thread_data *td)
                goto failed_shutdown;
        }
 
+        if (td->o.odirect) {
+               r = rados_conf_set(rbd->cluster, "rbd_cache", "false");
+               if (r < 0) {
+                       log_info("failed to disable RBD in-memory cache\n");
+               }
+       }
+
        r = rbd_open(rbd->io_ctx, o->rbd_name, &rbd->image, NULL /*snap */ );
        if (r < 0) {
                log_err("rbd_open failed.\n");
                goto failed_open;
        }
 
+       if (!td->o.odirect) {
+               /*
+                * ensure cache enables writeback/around mode unless explicitly
+                * configured for writethrough mode
+                */
+               r = rbd_flush(rbd->image);
+               if (r < 0) {
+                       log_info("rbd: failed to issue initial flush\n");
+               }
+       }
+
        if (!_fio_rbd_setup_poll(rbd))
                goto failed_poll;
 
@@ -660,7 +686,7 @@ static int fio_rbd_io_u_init(struct thread_data *td, struct io_u *io_u)
        return 0;
 }
 
-static struct ioengine_ops ioengine = {
+FIO_STATIC struct ioengine_ops ioengine = {
        .name                   = "rbd",
        .version                = FIO_IOOPS_VERSION,
        .setup                  = fio_rbd_setup,