36 	atomic64_t		*head);
97 	atomic64_t		*head,  in xlog_grant_sub_space()  argument
100 	int64_t	head_val = atomic64_read(head);  in xlog_grant_sub_space()
116 		head_val = atomic64_cmpxchg(head, old, new);  in xlog_grant_sub_space()
123 	atomic64_t		*head,  in xlog_grant_add_space()  argument
126 	int64_t	head_val = atomic64_read(head);  in xlog_grant_add_space()
145 		head_val = atomic64_cmpxchg(head, old, new);  in xlog_grant_add_space()
151 	struct xlog_grant_head	*head)  in xlog_grant_head_init()  argument
153 	xlog_assign_grant_head(&head->grant, 1, 0);  in xlog_grant_head_init()
154 	INIT_LIST_HEAD(&head->waiters);  in xlog_grant_head_init()
155 	spin_lock_init(&head->lock);  in xlog_grant_head_init()
160 	struct xlog_grant_head	*head)  in xlog_grant_head_wake_all()  argument
164 	spin_lock(&head->lock);  in xlog_grant_head_wake_all()
165 	list_for_each_entry(tic, &head->waiters, t_queue)  in xlog_grant_head_wake_all()
167 	spin_unlock(&head->lock);  in xlog_grant_head_wake_all()
173 	struct xlog_grant_head	*head,  in xlog_ticket_reservation()  argument
176 	if (head == &log->l_write_head) {  in xlog_ticket_reservation()
190 	struct xlog_grant_head	*head,  in xlog_grant_head_wake()  argument
197 	list_for_each_entry(tic, &head->waiters, t_queue) {  in xlog_grant_head_wake()
220 		need_bytes = xlog_ticket_reservation(log, head, tic);  in xlog_grant_head_wake()
239 	struct xlog_grant_head	*head,  in xlog_grant_head_wait()  argument
241 	int			need_bytes) __releases(&head->lock)  in xlog_grant_head_wait()
242 					    __acquires(&head->lock)  in xlog_grant_head_wait()
244 	list_add_tail(&tic->t_queue, &head->waiters);  in xlog_grant_head_wait()
252 		spin_unlock(&head->lock);  in xlog_grant_head_wait()
260 		spin_lock(&head->lock);  in xlog_grant_head_wait()
263 	} while (xlog_space_left(log, &head->grant) < need_bytes);  in xlog_grant_head_wait()
292 	struct xlog_grant_head	*head,  in xlog_grant_head_check()  argument
307 	*need_bytes = xlog_ticket_reservation(log, head, tic);  in xlog_grant_head_check()
308 	free_bytes = xlog_space_left(log, &head->grant);  in xlog_grant_head_check()
309 	if (!list_empty_careful(&head->waiters)) {  in xlog_grant_head_check()
310 		spin_lock(&head->lock);  in xlog_grant_head_check()
311 		if (!xlog_grant_head_wake(log, head, &free_bytes) ||  in xlog_grant_head_check()
313 			error = xlog_grant_head_wait(log, head, tic,  in xlog_grant_head_check()
316 		spin_unlock(&head->lock);  in xlog_grant_head_check()
318 		spin_lock(&head->lock);  in xlog_grant_head_check()
319 		error = xlog_grant_head_wait(log, head, tic, *need_bytes);  in xlog_grant_head_check()
320 		spin_unlock(&head->lock);  in xlog_grant_head_check()
1152 	atomic64_t	*head)  in xlog_space_left()  argument
1160 	xlog_crack_grant_head(head, &head_cycle, &head_bytes);  in xlog_space_left()
1313 	xlog_rec_header_t	*head;  in xlog_alloc_log()  local
1405 		head = &iclog->ic_header;  in xlog_alloc_log()
1406 		memset(head, 0, sizeof(xlog_rec_header_t));  in xlog_alloc_log()
1407 		head->h_magicno = cpu_to_be32(XLOG_HEADER_MAGIC_NUM);  in xlog_alloc_log()
1408 		head->h_version = cpu_to_be32(  in xlog_alloc_log()
1410 		head->h_size = cpu_to_be32(log->l_iclog_size);  in xlog_alloc_log()
1412 		head->h_fmt = cpu_to_be32(XLOG_FMT);  in xlog_alloc_log()
1413 		memcpy(&head->h_fs_uuid, &mp->m_sb.sb_uuid, sizeof(uuid_t));  in xlog_alloc_log()
2886 	xlog_rec_header_t *head;  in xlog_state_get_iclog_space()  local
2905 	head = &iclog->ic_header;  in xlog_state_get_iclog_space()
2920 		head->h_cycle = cpu_to_be32(log->l_curr_cycle);  in xlog_state_get_iclog_space()
2921 		head->h_lsn = cpu_to_be64(  in xlog_state_get_iclog_space()