Merge PR #25879 into master

* refs/pull/25879/head:
	client: define template to declare ref
	client: use message smart ptr instead of raw ptr
	client: make map lookup optimizations
	client: do not clear message payload
	client: clean up variable name
	*: use std::string_view instead of char ptr

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

diff --cc src/messages/MLock.h
index be1265822689b80fcc593d860e63235882a1b652,eec664d800b2f408507d146a3c34e08e5be7c572..decaabae7be7734a665fa460f05026770bcd10ca
--- 1/src/messages/MLock.h
--- 2/src/messages/MLock.h
+++ b/src/messages/MLock.h
@@@ -65,10 -65,10 +65,10 @@@ protected
    ~MLock() override {}
    
  public:
-   const char *get_type_name() const override { return "ILock"; }
+   std::string_view get_type_name() const override { return "ILock"; }
    void print(ostream& out) const override {
 -    out << "lock(a=" << get_lock_action_name(action)
 -      << " " << get_lock_type_name(lock_type)
 +    out << "lock(a=" << SimpleLock::get_lock_action_name(action)
 +      << " " << SimpleLock::get_lock_type_name(lock_type)
        << " " << object_info
        << ")";
    }