rgw: apply_olh_log should clear_olh before trimming olh log

When pending_removal is true and the log is trimmed prior to
clearing olh, it allows for the possibility that the olh is not
cleared (e.g. due to new pending xattrs on the olh obj), but the
olh log entries are removed.

Signed-off-by: Cory Snyder <csnyder@1111systems.com>
(cherry picked from commit dfbe4f9cb078bad9a0244ce433a9728f8bd6b912)

Conflicts:
	src/rgw/rgw_rados.cc

Cherry-pick notes:
- conflicts due to optional_yield param differences

diff --git a/src/rgw/rgw_rados.cc b/src/rgw/rgw_rados.cc
index f8d8768142cdeb62db06c5676faaa86c0991b7fa..958fe5d4538faec73da0bf44b8d04c92c4049471 100644 (file)
--- a/src/rgw/rgw_rados.cc
+++ b/src/rgw/rgw_rados.cc
@@ -7465,17 +7465,21 @@ int RGWRados::apply_olh_log(const DoutPrefixProvider *dpp,
     return r;
   }
 
+  if (need_to_remove) {
+    string olh_tag(state.olh_tag.c_str(), state.olh_tag.length());
+    r = clear_olh(dpp, obj_ctx, obj, bucket_info, ref, olh_tag, last_ver, null_yield);
+    if (r < 0 && r != -ECANCELED) {
+      ldpp_dout(dpp, 0) << "ERROR: could not clear olh, r=" << r << dendl;
+      return r;
+    }
+  }
+
   r = bucket_index_trim_olh_log(dpp, bucket_info, state, obj, last_ver);
-  if (r < 0) {
+  if (r < 0 && r != -ECANCELED) {
     ldpp_dout(dpp, 0) << "ERROR: could not trim olh log, r=" << r << dendl;
     return r;
   }
 
-  if (need_to_remove) {
-    string olh_tag(state.olh_tag.c_str(), state.olh_tag.length());
-    clear_olh(dpp, obj_ctx, obj, bucket_info, ref, olh_tag, last_ver, null_yield);
-  }
-
   return 0;
 }