From: Sage Weil <sage@redhat.com>
Date: Tue, 11 Jun 2019 14:32:34 +0000 (-0500)
Subject: mds/SnapServer: make not about pre-octopus compat code
X-Git-Tag: v15.1.0~2308^2~15
X-Git-Url: http://git-server-git.apps.pok.os.sepia.ceph.com/?a=commitdiff_plain;h=a1f649c2e763eb21c47f013e1bf8b6ae24700359;p=ceph.git

mds/SnapServer: make not about pre-octopus compat code

Signed-off-by: Sage Weil <sage@redhat.com>
---

diff --git a/src/mds/SnapServer.cc b/src/mds/SnapServer.cc
index 78b41bd61211..f6881d8ec1ed 100644
--- a/src/mds/SnapServer.cc
+++ b/src/mds/SnapServer.cc
@@ -320,6 +320,9 @@ void SnapServer::check_osd_map(bool force)
   map<int32_t, vector<snapid_t> > all_purge;
   map<int32_t, vector<snapid_t> > all_purged;
 
+  // NOTE: this is only needed for support during upgrades from pre-octopus,
+  // since starting with octopus we now get an explicit ack after we remove a
+  // snap.
   mds->objecter->with_osdmap(
     [this, &all_purged, &all_purge](const OSDMap& osdmap) {
       for (const auto& p : need_to_purge) {