Merge PR ceph#45192 into wip-vshankar-testing-20221212.055337

* refs/pull/45192/head:
	mds: use the whole string as the snapshot long name

Reviewed-by: Venky Shankar <vshankar@redhat.com>
Reviewed-by: Jos Collin <jcollin@redhat.com>
Reviewed-by: Nikhilkumar Shelke <nshelke@redhat.com>
Reviewed-by: Jeff Layton <jlayton@redhat.com>
Reviewed-by: Ramana Raja <rraja@redhat.com>

.githubmap

@@ -153,3 +153,4 @@ kamoltat Kamoltat Sirivadhna <ksirivad@redhat.com>
 anthonyeleven Anthony D Atri <anthony.datri@gmail.com>
 petrutlucian94 Lucian Petrut <lpetrut@cloudbasesolutions.com>
 dparmar18 Dhairya Parmar <dparmar@redhat.com>
+nmshelke Nikhilkumar Shelke <nshelke@redhat.com>

src/mds/snap.cc

@@ -84,9 +84,9 @@ std::string_view SnapInfo::get_long_name() const
   if (long_name.empty() ||
       long_name.compare(1, name.size(), name) ||
       long_name.find_last_of("_") != name.size() + 1) {
-    char nm[80];
-    snprintf(nm, sizeof(nm), "_%s_%llu", name.c_str(), (unsigned long long)ino);
-    long_name = nm;
+    std::ostringstream oss;
+    oss << "_" << name << "_" << (unsigned long long)ino;
+    long_name = oss.str();
   }
   return long_name;
 }