36 	atomic64_t		*head);
96 	atomic64_t		*head,  in xlog_grant_sub_space()  argument
99 	int64_t	head_val = atomic64_read(head);  in xlog_grant_sub_space()
115 		head_val = atomic64_cmpxchg(head, old, new);  in xlog_grant_sub_space()
122 	atomic64_t		*head,  in xlog_grant_add_space()  argument
125 	int64_t	head_val = atomic64_read(head);  in xlog_grant_add_space()
144 		head_val = atomic64_cmpxchg(head, old, new);  in xlog_grant_add_space()
150 	struct xlog_grant_head	*head)  in xlog_grant_head_init()  argument
152 	xlog_assign_grant_head(&head->grant, 1, 0);  in xlog_grant_head_init()
153 	INIT_LIST_HEAD(&head->waiters);  in xlog_grant_head_init()
154 	spin_lock_init(&head->lock);  in xlog_grant_head_init()
159 	struct xlog_grant_head	*head)  in xlog_grant_head_wake_all()  argument
163 	spin_lock(&head->lock);  in xlog_grant_head_wake_all()
164 	list_for_each_entry(tic, &head->waiters, t_queue)  in xlog_grant_head_wake_all()
166 	spin_unlock(&head->lock);  in xlog_grant_head_wake_all()
172 	struct xlog_grant_head	*head,  in xlog_ticket_reservation()  argument
175 	if (head == &log->l_write_head) {  in xlog_ticket_reservation()
189 	struct xlog_grant_head	*head,  in xlog_grant_head_wake()  argument
196 	list_for_each_entry(tic, &head->waiters, t_queue) {  in xlog_grant_head_wake()
219 		need_bytes = xlog_ticket_reservation(log, head, tic);  in xlog_grant_head_wake()
238 	struct xlog_grant_head	*head,  in xlog_grant_head_wait()  argument
240 	int			need_bytes) __releases(&head->lock)  in xlog_grant_head_wait()
241 					    __acquires(&head->lock)  in xlog_grant_head_wait()
243 	list_add_tail(&tic->t_queue, &head->waiters);  in xlog_grant_head_wait()
251 		spin_unlock(&head->lock);  in xlog_grant_head_wait()
259 		spin_lock(&head->lock);  in xlog_grant_head_wait()
262 	} while (xlog_space_left(log, &head->grant) < need_bytes);  in xlog_grant_head_wait()
291 	struct xlog_grant_head	*head,  in xlog_grant_head_check()  argument
306 	*need_bytes = xlog_ticket_reservation(log, head, tic);  in xlog_grant_head_check()
307 	free_bytes = xlog_space_left(log, &head->grant);  in xlog_grant_head_check()
308 	if (!list_empty_careful(&head->waiters)) {  in xlog_grant_head_check()
309 		spin_lock(&head->lock);  in xlog_grant_head_check()
310 		if (!xlog_grant_head_wake(log, head, &free_bytes) ||  in xlog_grant_head_check()
312 			error = xlog_grant_head_wait(log, head, tic,  in xlog_grant_head_check()
315 		spin_unlock(&head->lock);  in xlog_grant_head_check()
317 		spin_lock(&head->lock);  in xlog_grant_head_check()
318 		error = xlog_grant_head_wait(log, head, tic, *need_bytes);  in xlog_grant_head_check()
319 		spin_unlock(&head->lock);  in xlog_grant_head_check()
1305 	atomic64_t	*head)  in xlog_space_left()  argument
1312 	xlog_crack_grant_head(head, &head_cycle, &head_bytes);  in xlog_space_left()
1493 	xlog_rec_header_t	*head;  in xlog_alloc_log()  local
1591 		head = &iclog->ic_header;  in xlog_alloc_log()
1592 		memset(head, 0, sizeof(xlog_rec_header_t));  in xlog_alloc_log()
1593 		head->h_magicno = cpu_to_be32(XLOG_HEADER_MAGIC_NUM);  in xlog_alloc_log()
1594 		head->h_version = cpu_to_be32(  in xlog_alloc_log()
1596 		head->h_size = cpu_to_be32(log->l_iclog_size);  in xlog_alloc_log()
1598 		head->h_fmt = cpu_to_be32(XLOG_FMT);  in xlog_alloc_log()
1599 		memcpy(&head->h_fs_uuid, &mp->m_sb.sb_uuid, sizeof(uuid_t));  in xlog_alloc_log()
2984 	xlog_rec_header_t *head;  in xlog_state_get_iclog_space()  local
3003 	head = &iclog->ic_header;  in xlog_state_get_iclog_space()
3020 		head->h_cycle = cpu_to_be32(log->l_curr_cycle);  in xlog_state_get_iclog_space()
3021 		head->h_lsn = cpu_to_be64(  in xlog_state_get_iclog_space()