Function lf_set_start

freebsd/kern/kern_lockf.c:1172–1182

* Set the start of an existing active lock, updating dependencies and * adding any newly woken locks to 'granted'. */

 * adding any newly woken locks to 'granted'.
 */
static void
lf_set_start(struct lockf *state, struct lockf_entry *lock, off_t new_start,
	struct lockf_entry_list *granted)
{

	KASSERT(new_start >= lock->lf_start, ("can't increase lock"));
	lock->lf_start = new_start;
	LIST_REMOVE(lock, lf_link);
	lf_insert_lock(state, lock);
	lf_update_dependancies(state, lock, FALSE, granted);
}

/*
 * Set the end of an existing active lock, updating dependencies and