From: Kefu Chai <kchai@redhat.com>
Date: Tue, 6 Oct 2020 11:03:38 +0000 (+0800)
Subject: crimson/os: mark dtor of interface class "virtual"
X-Git-Tag: v17.0.0~940^2~1
X-Git-Url: http://git.apps.os.sepia.ceph.com/?a=commitdiff_plain;h=6336f72244d26c4d92c62770eb8d54c5ccc6d337;p=ceph.git

crimson/os: mark dtor of interface class "virtual"

we use a smart_ptr in Seastore to manage the life cycle of
`TransactionManager` which is in turn a subclass
`ExtentCallbackInterface`, so should declare the dtor of latter as
virtual.

Signed-off-by: Kefu Chai <kchai@redhat.com>
---

diff --git a/src/crimson/os/seastore/segment_cleaner.h b/src/crimson/os/seastore/segment_cleaner.h
index c4943a1590f7e..43a2897ca0505 100644
--- a/src/crimson/os/seastore/segment_cleaner.h
+++ b/src/crimson/os/seastore/segment_cleaner.h
@@ -37,6 +37,7 @@ public:
   /// Callback interface for querying and operating on segments
   class ExtentCallbackInterface {
   public:
+    virtual ~ExtentCallbackInterface() = default;
     /**
      * get_next_dirty_extent
      *