crimson/osd/../client_request: add logs around get_obc stage

If this stage is in use by other operation we would keep waiting for it
to finish. Add logs before entering the stage and after to keep track of
stuck requests.

Signed-off-by: Matan Breizman <[email protected]>
(cherry picked from commit 548ee41)

Author: Matan-B

src/crimson/osd/osd_operations/client_request.cc

@@ -180,8 +180,13 @@ ClientRequest::interruptible_future<> ClientRequest::with_pg_process_interruptib
       pg.wait_for_active_blocker,
       &decltype(pg.wait_for_active_blocker)::wait));
 
+  DEBUGDPP("{}.{}: waited for active, entering get_obc stage ",
+           pg, *this, this_instance_id);
+
   co_await ihref.enter_stage<interruptor>(client_pp(pg).get_obc, *this);
 
+  DEBUGDPP("{}.{}: entered get_obc stage", pg, *this, this_instance_id);
+
   if (int res = op_info.set_from_op(&*m, *pg.get_osdmap());
       res != 0) {
     co_await reply_op_error(pgref, res);