134 int ocfs2_refresh_slot_info(struct ocfs2_super *osb)  in ocfs2_refresh_slot_info()  argument
137 	struct ocfs2_slot_info *si = osb->slot_info;  in ocfs2_refresh_slot_info()
155 		spin_lock(&osb->osb_lock);  in ocfs2_refresh_slot_info()
157 		spin_unlock(&osb->osb_lock);  in ocfs2_refresh_slot_info()
201 static int ocfs2_update_disk_slot(struct ocfs2_super *osb,  in ocfs2_update_disk_slot()  argument
208 	spin_lock(&osb->osb_lock);  in ocfs2_update_disk_slot()
213 	spin_unlock(&osb->osb_lock);  in ocfs2_update_disk_slot()
215 	status = ocfs2_write_block(osb, bh, INODE_CACHE(si->si_inode));  in ocfs2_update_disk_slot()
226 static int ocfs2_slot_map_physical_size(struct ocfs2_super *osb,  in ocfs2_slot_map_physical_size()  argument
232 	if (ocfs2_uses_extended_slot_map(osb)) {  in ocfs2_slot_map_physical_size()
233 		bytes_needed = osb->max_slots *  in ocfs2_slot_map_physical_size()
236 		bytes_needed = osb->max_slots * sizeof(__le16);  in ocfs2_slot_map_physical_size()
289 int ocfs2_node_num_to_slot(struct ocfs2_super *osb, unsigned int node_num)  in ocfs2_node_num_to_slot()  argument
292 	struct ocfs2_slot_info *si = osb->slot_info;  in ocfs2_node_num_to_slot()
294 	spin_lock(&osb->osb_lock);  in ocfs2_node_num_to_slot()
296 	spin_unlock(&osb->osb_lock);  in ocfs2_node_num_to_slot()
301 int ocfs2_slot_to_node_num_locked(struct ocfs2_super *osb, int slot_num,  in ocfs2_slot_to_node_num_locked()  argument
304 	struct ocfs2_slot_info *si = osb->slot_info;  in ocfs2_slot_to_node_num_locked()
306 	assert_spin_locked(&osb->osb_lock);  in ocfs2_slot_to_node_num_locked()
309 	BUG_ON(slot_num >= osb->max_slots);  in ocfs2_slot_to_node_num_locked()
340 int ocfs2_clear_slot(struct ocfs2_super *osb, int slot_num)  in ocfs2_clear_slot()  argument
342 	struct ocfs2_slot_info *si = osb->slot_info;  in ocfs2_clear_slot()
347 	spin_lock(&osb->osb_lock);  in ocfs2_clear_slot()
349 	spin_unlock(&osb->osb_lock);  in ocfs2_clear_slot()
351 	return ocfs2_update_disk_slot(osb, osb->slot_info, slot_num);  in ocfs2_clear_slot()
354 static int ocfs2_map_slot_buffers(struct ocfs2_super *osb,  in ocfs2_map_slot_buffers()  argument
363 	status = ocfs2_slot_map_physical_size(osb, si->si_inode, &bytes);  in ocfs2_map_slot_buffers()
375 			(osb->sb->s_blocksize /  in ocfs2_map_slot_buffers()
378 		si->si_slots_per_block = osb->sb->s_blocksize / sizeof(__le16);  in ocfs2_map_slot_buffers()
381 	BUG_ON((osb->max_slots / si->si_slots_per_block) > blocks);  in ocfs2_map_slot_buffers()
418 int ocfs2_init_slot_info(struct ocfs2_super *osb)  in ocfs2_init_slot_info()  argument
425 		     (sizeof(struct ocfs2_slot) * osb->max_slots),  in ocfs2_init_slot_info()
433 	si->si_extended = ocfs2_uses_extended_slot_map(osb);  in ocfs2_init_slot_info()
434 	si->si_num_slots = osb->max_slots;  in ocfs2_init_slot_info()
438 	inode = ocfs2_get_system_file_inode(osb, SLOT_MAP_SYSTEM_INODE,  in ocfs2_init_slot_info()
447 	status = ocfs2_map_slot_buffers(osb, si);  in ocfs2_init_slot_info()
453 	osb->slot_info = (struct ocfs2_slot_info *)si;  in ocfs2_init_slot_info()
461 void ocfs2_free_slot_info(struct ocfs2_super *osb)  in ocfs2_free_slot_info()  argument
463 	struct ocfs2_slot_info *si = osb->slot_info;  in ocfs2_free_slot_info()
465 	osb->slot_info = NULL;  in ocfs2_free_slot_info()
469 int ocfs2_find_slot(struct ocfs2_super *osb)  in ocfs2_find_slot()  argument
475 	si = osb->slot_info;  in ocfs2_find_slot()
477 	spin_lock(&osb->osb_lock);  in ocfs2_find_slot()
484 	slot = __ocfs2_node_num_to_slot(si, osb->node_num);  in ocfs2_find_slot()
488 		slot = __ocfs2_find_empty_slot(si, osb->preferred_slot);  in ocfs2_find_slot()
490 			spin_unlock(&osb->osb_lock);  in ocfs2_find_slot()
497 		       "allocated to this node!\n", slot, osb->dev_str);  in ocfs2_find_slot()
499 	ocfs2_set_slot(si, slot, osb->node_num);  in ocfs2_find_slot()
500 	osb->slot_num = slot;  in ocfs2_find_slot()
501 	spin_unlock(&osb->osb_lock);  in ocfs2_find_slot()
503 	trace_ocfs2_find_slot(osb->slot_num);  in ocfs2_find_slot()
505 	status = ocfs2_update_disk_slot(osb, si, osb->slot_num);  in ocfs2_find_slot()
513 void ocfs2_put_slot(struct ocfs2_super *osb)  in ocfs2_put_slot()  argument
516 	struct ocfs2_slot_info *si = osb->slot_info;  in ocfs2_put_slot()
521 	spin_lock(&osb->osb_lock);  in ocfs2_put_slot()
524 	slot_num = osb->slot_num;  in ocfs2_put_slot()
525 	ocfs2_invalidate_slot(si, osb->slot_num);  in ocfs2_put_slot()
526 	osb->slot_num = OCFS2_INVALID_SLOT;  in ocfs2_put_slot()
527 	spin_unlock(&osb->osb_lock);  in ocfs2_put_slot()
529 	status = ocfs2_update_disk_slot(osb, si, slot_num);  in ocfs2_put_slot()
536 	ocfs2_free_slot_info(osb);  in ocfs2_put_slot()