block: warn when cfq is used

Dump pending IO from cfq is not support, it may not deserve the effort to support it since single queue is going away, leave a message to warn users. Signed-off-by: Junxiao Bi <[email protected]>
oracle-samples · Dec 4, 2023 · 6ae812c · 6ae812c
1 parent 25bfb0d
commit 6ae812c
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/drgn_tools/block.py b/drgn_tools/block.py
@@ -334,6 +334,9 @@ def for_each_sq_elevator_rq(q: Object) -> Iterable[Object]:
         list2 = elevator_data.fifo_list[1].address_of_()
     elif name == "cfq":
         # TODO: implement this
+        print(
+            "queue 0x%lx: dump pending IO from cfq not supported!" % q.value_()
+        )
         return []
     else:
         return []