From: Mykola Golub <mgolub@suse.com>
Date: Wed, 2 Dec 2020 08:30:39 +0000 (+0000)
Subject: librbd: fix regression in diff request
X-Git-Tag: v16.1.0~363^2~2
X-Git-Url: http://git-server-git.apps.pok.os.sepia.ceph.com/?a=commitdiff_plain;h=89661d0a64e57dfdbf285a98f4e59ba1e411f107;p=ceph.git

librbd: fix regression in diff request

(when testing for fast-diff feature enabled)

Fix: https://tracker.ceph.com/issues/48412
Signed-off-by: Mykola Golub <mgolub@suse.com>
---

diff --git a/src/librbd/object_map/DiffRequest.cc b/src/librbd/object_map/DiffRequest.cc
index bd279de9023..1f80eb155cb 100644
--- a/src/librbd/object_map/DiffRequest.cc
+++ b/src/librbd/object_map/DiffRequest.cc
@@ -62,7 +62,7 @@ void DiffRequest<I>::load_object_map(
     }
   }
 
-  if ((m_image_ctx->features & RBD_FEATURE_FAST_DIFF) != 0) {
+  if ((m_image_ctx->features & RBD_FEATURE_FAST_DIFF) == 0) {
     image_locker->unlock();
 
     ldout(cct, 10) << "fast-diff feature not enabled" << dendl;