Merge pull request #821 from ceph/wip-fsx-journal

rbd: add fsx journal replay test case

Reviewed-by: Josh Durgin <jdurgin@redhat.com>

suites/rbd/thrash/workloads/rbd_fsx_journal.yaml

@@ -0,0 +1,5 @@
+tasks:
+- rbd_fsx:
+    clients: [client.0]
+    ops: 6000
+    journal_replay: True

tasks/rbd_fsx.py

@@ -89,6 +89,8 @@ def _run_one_client(ctx, config, role):
         args.append('-U') # -U disables randomized striping
     if not config.get('punch_holes', True):
         args.append('-H') # -H disables discard ops
+    if config.get('journal_replay', False):
+        args.append('-j') # -j replay all IO events from journal
     args.extend([
         'pool_{pool}'.format(pool=role),
         'image_{image}'.format(image=role),