From: Jason Dillaman <dillaman@redhat.com>
Date: Wed, 24 Apr 2019 15:37:41 +0000 (-0400)
Subject: librbd: copyup read stats were incorrectly tied to child
X-Git-Tag: v14.2.2~183^2
X-Git-Url: http://git.apps.os.sepia.ceph.com/?a=commitdiff_plain;h=a324f4a19bb2c090f9fa1911a713b73fe3f056ed;p=ceph.git

librbd: copyup read stats were incorrectly tied to child

The parent IO stats should be updated when reading from the parent
image for a copyup.

Signed-off-by: Jason Dillaman <dillaman@redhat.com>
(cherry picked from commit 9b615c30753ad35636c875696ed951e807fd694c)
---

diff --git a/src/librbd/io/CopyupRequest.cc b/src/librbd/io/CopyupRequest.cc
index 2299d3bf34196..9344e5891a3ca 100644
--- a/src/librbd/io/CopyupRequest.cc
+++ b/src/librbd/io/CopyupRequest.cc
@@ -163,7 +163,7 @@ void CopyupRequest<I>::read_from_parent() {
   auto comp = AioCompletion::create_and_start<
     CopyupRequest<I>,
     &CopyupRequest<I>::handle_read_from_parent>(
-      this, util::get_image_ctx(m_image_ctx), AIO_TYPE_READ);
+      this, util::get_image_ctx(m_image_ctx->parent), AIO_TYPE_READ);
 
   ldout(cct, 20) << "oid=" << m_oid << ", "
                  << "completion=" << comp << ", "