[LU-3172] call lustre_msg_get_opc() only once inside ost_handle()

• Type: Improvement
• Resolution: Fixed
• Priority: Minor
• Fix Version/s: Lustre 2.4.0
• Labels: patch
• Assignee: James Nunez (Inactive)
• Reporter: Nikitas Angelinas

Description

lustre_msg_get_opc() is called a few times inside ost_handle(); there is no real benefit from this, and we can just make one call when entering ost_handle(). There may be other occurrences in the source where this applies, apart from ost_handle(), but I am just making this change here for now, as this is a frequently-called function.