librbd: re-add missing discard perf counters

Signed-off-by: Jason Dillaman <dillaman@redhat.com>

diff --git a/src/librbd/internal.cc b/src/librbd/internal.cc
index a0b590f4413ba093d1d2644b10fcae1523106b7c..7bca684dc028e11d194d4aa5e8a651eb726f8bf2 100644 (file)
--- a/src/librbd/internal.cc
+++ b/src/librbd/internal.cc
@@ -3952,6 +3952,9 @@ reprotect_and_return_err:
 
     c->finish_adding_requests(ictx->cct);
     c->put();
+
+    ictx->perfcounter->inc(l_librbd_discard);
+    ictx->perfcounter->inc(l_librbd_discard_bytes, clip_len);
   }
 
   void rbd_req_cb(completion_t cb, void *arg)