36 	atomic64_t		*head);
147 	atomic64_t		*head,  in xlog_grant_sub_space()  argument
150 	int64_t	head_val = atomic64_read(head);  in xlog_grant_sub_space()
166 		head_val = atomic64_cmpxchg(head, old, new);  in xlog_grant_sub_space()
173 	atomic64_t		*head,  in xlog_grant_add_space()  argument
176 	int64_t	head_val = atomic64_read(head);  in xlog_grant_add_space()
195 		head_val = atomic64_cmpxchg(head, old, new);  in xlog_grant_add_space()
201 	struct xlog_grant_head	*head)  in xlog_grant_head_init()  argument
203 	xlog_assign_grant_head(&head->grant, 1, 0);  in xlog_grant_head_init()
204 	INIT_LIST_HEAD(&head->waiters);  in xlog_grant_head_init()
205 	spin_lock_init(&head->lock);  in xlog_grant_head_init()
210 	struct xlog_grant_head	*head)  in xlog_grant_head_wake_all()  argument
214 	spin_lock(&head->lock);  in xlog_grant_head_wake_all()
215 	list_for_each_entry(tic, &head->waiters, t_queue)  in xlog_grant_head_wake_all()
217 	spin_unlock(&head->lock);  in xlog_grant_head_wake_all()
223 	struct xlog_grant_head	*head,  in xlog_ticket_reservation()  argument
226 	if (head == &log->l_write_head) {  in xlog_ticket_reservation()
240 	struct xlog_grant_head	*head,  in xlog_grant_head_wake()  argument
247 	list_for_each_entry(tic, &head->waiters, t_queue) {  in xlog_grant_head_wake()
270 		need_bytes = xlog_ticket_reservation(log, head, tic);  in xlog_grant_head_wake()
289 	struct xlog_grant_head	*head,  in xlog_grant_head_wait()  argument
291 	int			need_bytes) __releases(&head->lock)  in xlog_grant_head_wait()
292 					    __acquires(&head->lock)  in xlog_grant_head_wait()
294 	list_add_tail(&tic->t_queue, &head->waiters);  in xlog_grant_head_wait()
302 		spin_unlock(&head->lock);  in xlog_grant_head_wait()
310 		spin_lock(&head->lock);  in xlog_grant_head_wait()
313 	} while (xlog_space_left(log, &head->grant) < need_bytes);  in xlog_grant_head_wait()
342 	struct xlog_grant_head	*head,  in xlog_grant_head_check()  argument
357 	*need_bytes = xlog_ticket_reservation(log, head, tic);  in xlog_grant_head_check()
358 	free_bytes = xlog_space_left(log, &head->grant);  in xlog_grant_head_check()
359 	if (!list_empty_careful(&head->waiters)) {  in xlog_grant_head_check()
360 		spin_lock(&head->lock);  in xlog_grant_head_check()
361 		if (!xlog_grant_head_wake(log, head, &free_bytes) ||  in xlog_grant_head_check()
363 			error = xlog_grant_head_wait(log, head, tic,  in xlog_grant_head_check()
366 		spin_unlock(&head->lock);  in xlog_grant_head_check()
368 		spin_lock(&head->lock);  in xlog_grant_head_check()
369 		error = xlog_grant_head_wait(log, head, tic, *need_bytes);  in xlog_grant_head_check()
370 		spin_unlock(&head->lock);  in xlog_grant_head_check()
1343 	atomic64_t	*head)  in xlog_space_left()  argument
1350 	xlog_crack_grant_head(head, &head_cycle, &head_bytes);  in xlog_space_left()
1531 	xlog_rec_header_t	*head;  in xlog_alloc_log()  local
1626 		head = &iclog->ic_header;  in xlog_alloc_log()
1627 		memset(head, 0, sizeof(xlog_rec_header_t));  in xlog_alloc_log()
1628 		head->h_magicno = cpu_to_be32(XLOG_HEADER_MAGIC_NUM);  in xlog_alloc_log()
1629 		head->h_version = cpu_to_be32(  in xlog_alloc_log()
1631 		head->h_size = cpu_to_be32(log->l_iclog_size);  in xlog_alloc_log()
1633 		head->h_fmt = cpu_to_be32(XLOG_FMT);  in xlog_alloc_log()
1634 		memcpy(&head->h_fs_uuid, &mp->m_sb.sb_uuid, sizeof(uuid_t));  in xlog_alloc_log()
2920 	xlog_rec_header_t *head;  in xlog_state_get_iclog_space()  local
2939 	head = &iclog->ic_header;  in xlog_state_get_iclog_space()
2953 		head->h_cycle = cpu_to_be32(log->l_curr_cycle);  in xlog_state_get_iclog_space()
2954 		head->h_lsn = cpu_to_be64(  in xlog_state_get_iclog_space()