Variable: lock-file-mode
lock-file-mode is a buffer-local variable defined in files.el.gz.
Documentation
Non-nil if Lock-File mode is enabled.
Use the command lock-file-mode(var)/lock-file-mode(fun) to change this variable.
Probably introduced at or before Emacs version 28.1.
Key Bindings
Source Code
;; Defined in /usr/src/emacs/lisp/files.el.gz
(define-minor-mode lock-file-mode
"Toggle file locking in the current buffer (Lock File mode)."
:version "28.1"
(setq-local create-lockfiles (and lock-file-mode t)))