97 static void ocfs2_delete_osb(struct ocfs2_super *osb);
103 static int ocfs2_init_global_system_inodes(struct ocfs2_super *osb);
104 static int ocfs2_init_local_system_inodes(struct ocfs2_super *osb);
105 static void ocfs2_release_system_inodes(struct ocfs2_super *osb);
106 static int ocfs2_check_volume(struct ocfs2_super *osb);
121 static int ocfs2_susp_quotas(struct ocfs2_super *osb, int unsuspend);
122 static int ocfs2_enable_quotas(struct ocfs2_super *osb);
123 static void ocfs2_disable_quotas(struct ocfs2_super *osb);
212 static int ocfs2_osb_dump(struct ocfs2_super *osb, char *buf, int len)  in ocfs2_osb_dump()  argument
214 	struct ocfs2_cluster_connection *cconn = osb->cconn;  in ocfs2_osb_dump()
215 	struct ocfs2_recovery_map *rm = osb->recovery_map;  in ocfs2_osb_dump()
216 	struct ocfs2_orphan_scan *os = &osb->osb_orphan_scan;  in ocfs2_osb_dump()
222 			"Device", osb->dev_str, osb->uuid_str,  in ocfs2_osb_dump()
223 			osb->fs_generation, osb->vol_label);  in ocfs2_osb_dump()
227 			atomic_read(&osb->vol_state), osb->osb_flags);  in ocfs2_osb_dump()
231 			osb->sb->s_blocksize, osb->s_clustersize);  in ocfs2_osb_dump()
236 			"Features", osb->s_feature_compat,  in ocfs2_osb_dump()
237 			osb->s_feature_incompat, osb->s_feature_ro_compat);  in ocfs2_osb_dump()
241 			osb->s_mount_opt, osb->s_atime_quantum);  in ocfs2_osb_dump()
247 				(*osb->osb_cluster_stack == '\0' ?  in ocfs2_osb_dump()
248 				 "o2cb" : osb->osb_cluster_stack),  in ocfs2_osb_dump()
254 	spin_lock_irqsave(&osb->dc_task_lock, flags);  in ocfs2_osb_dump()
258 			(osb->dc_task ?  task_pid_nr(osb->dc_task) : -1),  in ocfs2_osb_dump()
259 			osb->blocked_lock_count, osb->dc_wake_sequence,  in ocfs2_osb_dump()
260 			osb->dc_work_sequence);  in ocfs2_osb_dump()
261 	spin_unlock_irqrestore(&osb->dc_task_lock, flags);  in ocfs2_osb_dump()
263 	spin_lock(&osb->osb_lock);  in ocfs2_osb_dump()
266 			(osb->recovery_thread_task ?  in ocfs2_osb_dump()
267 			 task_pid_nr(osb->recovery_thread_task) : -1));  in ocfs2_osb_dump()
276 	spin_unlock(&osb->osb_lock);  in ocfs2_osb_dump()
280 			(osb->commit_task ? task_pid_nr(osb->commit_task) : -1),  in ocfs2_osb_dump()
281 			osb->osb_commit_interval);  in ocfs2_osb_dump()
285 			"Journal", osb->journal->j_state,  in ocfs2_osb_dump()
286 			osb->journal->j_trans_id,  in ocfs2_osb_dump()
287 			atomic_read(&osb->journal->j_num_trans));  in ocfs2_osb_dump()
293 			atomic_read(&osb->alloc_stats.bitmap_data),  in ocfs2_osb_dump()
294 			atomic_read(&osb->alloc_stats.local_data),  in ocfs2_osb_dump()
295 			atomic_read(&osb->alloc_stats.bg_allocs),  in ocfs2_osb_dump()
296 			atomic_read(&osb->alloc_stats.moves),  in ocfs2_osb_dump()
297 			atomic_read(&osb->alloc_stats.bg_extends));  in ocfs2_osb_dump()
302 			"LocalAlloc", osb->local_alloc_state,  in ocfs2_osb_dump()
303 			(unsigned long long)osb->la_last_gd,  in ocfs2_osb_dump()
304 			osb->local_alloc_bits, osb->local_alloc_default_bits);  in ocfs2_osb_dump()
306 	spin_lock(&osb->osb_lock);  in ocfs2_osb_dump()
310 			osb->s_inode_steal_slot,  in ocfs2_osb_dump()
311 			atomic_read(&osb->s_num_inodes_stolen),  in ocfs2_osb_dump()
312 			osb->s_meta_steal_slot,  in ocfs2_osb_dump()
313 			atomic_read(&osb->s_num_meta_stolen));  in ocfs2_osb_dump()
314 	spin_unlock(&osb->osb_lock);  in ocfs2_osb_dump()
328 	for (i = 0; i < osb->max_slots; ++i) {  in ocfs2_osb_dump()
332 				(i == osb->slot_num ? '*' : ' '),  in ocfs2_osb_dump()
333 				i, osb->slot_recovery_generations[i]);  in ocfs2_osb_dump()
341 	struct ocfs2_super *osb = inode->i_private;  in ocfs2_osb_debug_open()  local
348 	i_size_write(inode, ocfs2_osb_dump(osb, buf, PAGE_SIZE));  in ocfs2_osb_debug_open()
396 	struct ocfs2_super *osb = OCFS2_SB(sb);  in ocfs2_sync_fs()  local
398 	if (ocfs2_is_hard_readonly(osb))  in ocfs2_sync_fs()
402 		status = ocfs2_flush_truncate_log(osb);  in ocfs2_sync_fs()
406 		ocfs2_schedule_truncate_log_flush(osb, 0);  in ocfs2_sync_fs()
409 	if (jbd2_journal_start_commit(osb->journal->j_journal,  in ocfs2_sync_fs()
412 			jbd2_log_wait_commit(osb->journal->j_journal,  in ocfs2_sync_fs()
418 static int ocfs2_need_system_inode(struct ocfs2_super *osb, int ino)  in ocfs2_need_system_inode()  argument
420 	if (!OCFS2_HAS_RO_COMPAT_FEATURE(osb->sb, OCFS2_FEATURE_RO_COMPAT_USRQUOTA)  in ocfs2_need_system_inode()
424 	if (!OCFS2_HAS_RO_COMPAT_FEATURE(osb->sb, OCFS2_FEATURE_RO_COMPAT_GRPQUOTA)  in ocfs2_need_system_inode()
431 static int ocfs2_init_global_system_inodes(struct ocfs2_super *osb)  in ocfs2_init_global_system_inodes()  argument
437 	new = ocfs2_iget(osb, osb->root_blkno, OCFS2_FI_FLAG_SYSFILE, 0);  in ocfs2_init_global_system_inodes()
443 	osb->root_inode = new;  in ocfs2_init_global_system_inodes()
445 	new = ocfs2_iget(osb, osb->system_dir_blkno, OCFS2_FI_FLAG_SYSFILE, 0);  in ocfs2_init_global_system_inodes()
451 	osb->sys_root_inode = new;  in ocfs2_init_global_system_inodes()
455 		if (!ocfs2_need_system_inode(osb, i))  in ocfs2_init_global_system_inodes()
457 		new = ocfs2_get_system_file_inode(osb, i, osb->slot_num);  in ocfs2_init_global_system_inodes()
459 			ocfs2_release_system_inodes(osb);  in ocfs2_init_global_system_inodes()
460 			status = ocfs2_is_soft_readonly(osb) ? -EROFS : -EINVAL;  in ocfs2_init_global_system_inodes()
476 static int ocfs2_init_local_system_inodes(struct ocfs2_super *osb)  in ocfs2_init_local_system_inodes()  argument
485 		if (!ocfs2_need_system_inode(osb, i))  in ocfs2_init_local_system_inodes()
487 		new = ocfs2_get_system_file_inode(osb, i, osb->slot_num);  in ocfs2_init_local_system_inodes()
489 			ocfs2_release_system_inodes(osb);  in ocfs2_init_local_system_inodes()
490 			status = ocfs2_is_soft_readonly(osb) ? -EROFS : -EINVAL;  in ocfs2_init_local_system_inodes()
492 			     status, i, osb->slot_num);  in ocfs2_init_local_system_inodes()
505 static void ocfs2_release_system_inodes(struct ocfs2_super *osb)  in ocfs2_release_system_inodes()  argument
511 		inode = osb->global_system_inodes[i];  in ocfs2_release_system_inodes()
514 			osb->global_system_inodes[i] = NULL;  in ocfs2_release_system_inodes()
518 	inode = osb->sys_root_inode;  in ocfs2_release_system_inodes()
521 		osb->sys_root_inode = NULL;  in ocfs2_release_system_inodes()
524 	inode = osb->root_inode;  in ocfs2_release_system_inodes()
527 		osb->root_inode = NULL;  in ocfs2_release_system_inodes()
530 	if (!osb->local_system_inodes)  in ocfs2_release_system_inodes()
533 	for (i = 0; i < NUM_LOCAL_SYSTEM_INODES * osb->max_slots; i++) {  in ocfs2_release_system_inodes()
534 		if (osb->local_system_inodes[i]) {  in ocfs2_release_system_inodes()
535 			iput(osb->local_system_inodes[i]);  in ocfs2_release_system_inodes()
536 			osb->local_system_inodes[i] = NULL;  in ocfs2_release_system_inodes()
540 	kfree(osb->local_system_inodes);  in ocfs2_release_system_inodes()
541 	osb->local_system_inodes = NULL;  in ocfs2_release_system_inodes()
608 	struct ocfs2_super *osb = OCFS2_SB(sb);  in ocfs2_remount()  local
621 	if ((osb->s_mount_opt & tmp) != (parsed_options.mount_opt & tmp)) {  in ocfs2_remount()
627 	if ((osb->s_mount_opt & OCFS2_MOUNT_DATA_WRITEBACK) !=  in ocfs2_remount()
636 	if (!(osb->s_mount_opt & OCFS2_MOUNT_INODE64) &&  in ocfs2_remount()
647 			ret = ocfs2_susp_quotas(osb, 0);  in ocfs2_remount()
653 		spin_lock(&osb->osb_lock);  in ocfs2_remount()
654 		if (osb->osb_flags & OCFS2_OSB_HARD_RO) {  in ocfs2_remount()
662 			osb->osb_flags |= OCFS2_OSB_SOFT_RO;  in ocfs2_remount()
664 			if (osb->osb_flags & OCFS2_OSB_ERROR_FS) {  in ocfs2_remount()
679 			osb->osb_flags &= ~OCFS2_OSB_SOFT_RO;  in ocfs2_remount()
681 		trace_ocfs2_remount(sb->s_flags, osb->osb_flags, *flags);  in ocfs2_remount()
683 		spin_unlock(&osb->osb_lock);  in ocfs2_remount()
687 				ret = ocfs2_susp_quotas(osb, 1);  in ocfs2_remount()
689 				ret = ocfs2_enable_quotas(osb);  in ocfs2_remount()
692 				spin_lock(&osb->osb_lock);  in ocfs2_remount()
694 				osb->osb_flags |= OCFS2_OSB_SOFT_RO;  in ocfs2_remount()
695 				spin_unlock(&osb->osb_lock);  in ocfs2_remount()
704 		osb->s_mount_opt = parsed_options.mount_opt;  in ocfs2_remount()
705 		osb->s_atime_quantum = parsed_options.atime_quantum;  in ocfs2_remount()
706 		osb->preferred_slot = parsed_options.slot;  in ocfs2_remount()
708 			osb->osb_commit_interval = parsed_options.commit_interval;  in ocfs2_remount()
710 		if (!ocfs2_is_hard_readonly(osb))  in ocfs2_remount()
711 			ocfs2_set_journal_params(osb);  in ocfs2_remount()
714 			((osb->s_mount_opt & OCFS2_MOUNT_POSIX_ACL) ?  in ocfs2_remount()
807 static int ocfs2_verify_heartbeat(struct ocfs2_super *osb)  in ocfs2_verify_heartbeat()  argument
811 	if (osb->s_mount_opt & hb_enabled) {  in ocfs2_verify_heartbeat()
812 		if (ocfs2_mount_local(osb)) {  in ocfs2_verify_heartbeat()
817 		if (ocfs2_userspace_stack(osb)) {  in ocfs2_verify_heartbeat()
822 		if (((osb->s_mount_opt & OCFS2_MOUNT_HB_GLOBAL) &&  in ocfs2_verify_heartbeat()
823 		     !ocfs2_cluster_o2cb_global_heartbeat(osb)) ||  in ocfs2_verify_heartbeat()
824 		    ((osb->s_mount_opt & OCFS2_MOUNT_HB_LOCAL) &&  in ocfs2_verify_heartbeat()
825 		     ocfs2_cluster_o2cb_global_heartbeat(osb))) {  in ocfs2_verify_heartbeat()
831 	if (!(osb->s_mount_opt & hb_enabled)) {  in ocfs2_verify_heartbeat()
832 		if (!ocfs2_mount_local(osb) && !ocfs2_is_hard_readonly(osb) &&  in ocfs2_verify_heartbeat()
833 		    !ocfs2_userspace_stack(osb)) {  in ocfs2_verify_heartbeat()
848 static int ocfs2_verify_userspace_stack(struct ocfs2_super *osb,  in ocfs2_verify_userspace_stack()  argument
851 	if (!ocfs2_userspace_stack(osb) && mopt->cluster_stack[0]) {  in ocfs2_verify_userspace_stack()
858 	if (ocfs2_userspace_stack(osb) &&  in ocfs2_verify_userspace_stack()
859 	    strncmp(osb->osb_cluster_stack, mopt->cluster_stack,  in ocfs2_verify_userspace_stack()
865 		     osb->osb_cluster_stack);  in ocfs2_verify_userspace_stack()
872 static int ocfs2_susp_quotas(struct ocfs2_super *osb, int unsuspend)  in ocfs2_susp_quotas()  argument
875 	struct super_block *sb = osb->sb;  in ocfs2_susp_quotas()
903 static int ocfs2_enable_quotas(struct ocfs2_super *osb)  in ocfs2_enable_quotas()  argument
906 	struct super_block *sb = osb->sb;  in ocfs2_enable_quotas()
920 		inode[type] = ocfs2_get_system_file_inode(osb, ino[type],  in ocfs2_enable_quotas()
921 							osb->slot_num);  in ocfs2_enable_quotas()
936 	ocfs2_disable_quotas(osb);  in ocfs2_enable_quotas()
943 static void ocfs2_disable_quotas(struct ocfs2_super *osb)  in ocfs2_disable_quotas()  argument
947 	struct super_block *sb = osb->sb;  in ocfs2_disable_quotas()
973 	struct ocfs2_super *osb = NULL;  in ocfs2_fill_super()  local
998 	osb = OCFS2_SB(sb);  in ocfs2_fill_super()
1004 	osb->s_mount_opt = parsed_options.mount_opt;  in ocfs2_fill_super()
1005 	osb->s_atime_quantum = parsed_options.atime_quantum;  in ocfs2_fill_super()
1006 	osb->preferred_slot = parsed_options.slot;  in ocfs2_fill_super()
1007 	osb->osb_commit_interval = parsed_options.commit_interval;  in ocfs2_fill_super()
1009 	ocfs2_la_set_sizes(osb, parsed_options.localalloc_opt);  in ocfs2_fill_super()
1010 	osb->osb_resv_level = parsed_options.resv_level;  in ocfs2_fill_super()
1011 	osb->osb_dir_resv_level = parsed_options.resv_level;  in ocfs2_fill_super()
1013 		osb->osb_dir_resv_level = parsed_options.resv_level;  in ocfs2_fill_super()
1015 		osb->osb_dir_resv_level = parsed_options.dir_resv_level;  in ocfs2_fill_super()
1017 	status = ocfs2_verify_userspace_stack(osb, &parsed_options);  in ocfs2_fill_super()
1024 		((osb->s_mount_opt & OCFS2_MOUNT_POSIX_ACL) ? SB_POSIXACL : 0);  in ocfs2_fill_super()
1038 		if (osb->s_mount_opt & OCFS2_MOUNT_HB_LOCAL) {  in ocfs2_fill_super()
1045 		status = ocfs2_check_journals_nolocks(osb);  in ocfs2_fill_super()
1054 		ocfs2_set_ro_flag(osb, 1);  in ocfs2_fill_super()
1058 		       "Recovery will be skipped.\n", osb->dev_str);  in ocfs2_fill_super()
1061 	if (!ocfs2_is_hard_readonly(osb)) {  in ocfs2_fill_super()
1063 			ocfs2_set_ro_flag(osb, 0);  in ocfs2_fill_super()
1066 	status = ocfs2_verify_heartbeat(osb);  in ocfs2_fill_super()
1070 	osb->osb_debug_root = debugfs_create_dir(osb->uuid_str,  in ocfs2_fill_super()
1073 	debugfs_create_file("fs_state", S_IFREG|S_IRUSR, osb->osb_debug_root,  in ocfs2_fill_super()
1074 			    osb, &ocfs2_osb_debug_fops);  in ocfs2_fill_super()
1076 	if (ocfs2_meta_ecc(osb))  in ocfs2_fill_super()
1077 		ocfs2_blockcheck_stats_debugfs_install( &osb->osb_ecc_stats,  in ocfs2_fill_super()
1078 							osb->osb_debug_root);  in ocfs2_fill_super()
1084 	if (osb->root_inode)  in ocfs2_fill_super()
1085 		inode = igrab(osb->root_inode);  in ocfs2_fill_super()
1092 	osb->osb_dev_kset = kset_create_and_add(sb->s_id, NULL,  in ocfs2_fill_super()
1094 	if (!osb->osb_dev_kset) {  in ocfs2_fill_super()
1102 	if (ocfs2_filecheck_create_sysfs(osb)) {  in ocfs2_fill_super()
1117 	ocfs2_complete_mount_recovery(osb);  in ocfs2_fill_super()
1119 	if (ocfs2_mount_local(osb))  in ocfs2_fill_super()
1122 		snprintf(nodestr, sizeof(nodestr), "%u", osb->node_num);  in ocfs2_fill_super()
1126 	       osb->dev_str, nodestr, osb->slot_num,  in ocfs2_fill_super()
1127 	       osb->s_mount_opt & OCFS2_MOUNT_DATA_WRITEBACK ? "writeback" :  in ocfs2_fill_super()
1130 	atomic_set(&osb->vol_state, VOLUME_MOUNTED);  in ocfs2_fill_super()
1131 	wake_up(&osb->osb_mount_event);  in ocfs2_fill_super()
1137 		status = ocfs2_enable_quotas(osb);  in ocfs2_fill_super()
1142 			atomic_set(&osb->vol_state, VOLUME_DISABLED);  in ocfs2_fill_super()
1143 			wake_up(&osb->osb_mount_event);  in ocfs2_fill_super()
1148 	ocfs2_complete_quota_recovery(osb);  in ocfs2_fill_super()
1151 	atomic_set(&osb->vol_state, VOLUME_MOUNTED_QUOTAS);  in ocfs2_fill_super()
1152 	wake_up(&osb->osb_mount_event);  in ocfs2_fill_super()
1155 	ocfs2_orphan_scan_start(osb);  in ocfs2_fill_super()
1160 	atomic_set(&osb->vol_state, VOLUME_DISABLED);  in ocfs2_fill_super()
1161 	wake_up(&osb->osb_mount_event);  in ocfs2_fill_super()
1162 	ocfs2_free_replay_slots(osb);  in ocfs2_fill_super()
1167 	debugfs_remove_recursive(osb->osb_debug_root);  in ocfs2_fill_super()
1169 	ocfs2_release_system_inodes(osb);  in ocfs2_fill_super()
1170 	kfree(osb->recovery_map);  in ocfs2_fill_super()
1171 	ocfs2_delete_osb(osb);  in ocfs2_fill_super()
1172 	kfree(osb);  in ocfs2_fill_super()
1470 	struct ocfs2_super *osb = OCFS2_SB(root->d_sb);  in ocfs2_show_options()  local
1471 	unsigned long opts = osb->s_mount_opt;  in ocfs2_show_options()
1501 	if (osb->preferred_slot != OCFS2_INVALID_SLOT)  in ocfs2_show_options()
1502 		seq_printf(s, ",preferred_slot=%d", osb->preferred_slot);  in ocfs2_show_options()
1504 	seq_printf(s, ",atime_quantum=%u", osb->s_atime_quantum);  in ocfs2_show_options()
1506 	if (osb->osb_commit_interval)  in ocfs2_show_options()
1508 			   (unsigned) (osb->osb_commit_interval / HZ));  in ocfs2_show_options()
1510 	local_alloc_megs = osb->local_alloc_bits >> (20 - osb->s_clustersize_bits);  in ocfs2_show_options()
1511 	if (local_alloc_megs != ocfs2_la_default_mb(osb))  in ocfs2_show_options()
1517 	if (osb->osb_cluster_stack[0])  in ocfs2_show_options()
1518 		seq_show_option_n(s, "cluster_stack", osb->osb_cluster_stack,  in ocfs2_show_options()
1543 	if (osb->osb_resv_level != OCFS2_DEFAULT_RESV_LEVEL)  in ocfs2_show_options()
1544 		seq_printf(s, ",resv_level=%d", osb->osb_resv_level);  in ocfs2_show_options()
1546 	if (osb->osb_dir_resv_level != osb->osb_resv_level)  in ocfs2_show_options()
1547 		seq_printf(s, ",dir_resv_level=%d", osb->osb_resv_level);  in ocfs2_show_options()
1612 	struct ocfs2_super *osb;  in ocfs2_statfs()  local
1621 	osb = OCFS2_SB(dentry->d_sb);  in ocfs2_statfs()
1623 	inode = ocfs2_get_system_file_inode(osb,  in ocfs2_statfs()
1647 			(osb->s_clustersize >> osb->sb->s_blocksize_bits);  in ocfs2_statfs()
1649 		       (osb->s_clustersize >> osb->sb->s_blocksize_bits);  in ocfs2_statfs()
1653 	buf->f_fsid.val[0] = crc32_le(0, osb->uuid_str, OCFS2_VOL_UUID_LEN)  in ocfs2_statfs()
1655 	buf->f_fsid.val[1] = crc32_le(0, osb->uuid_str + OCFS2_VOL_UUID_LEN,  in ocfs2_statfs()
1781 	struct ocfs2_super *osb = OCFS2_SB(sb);  in ocfs2_mount_volume()  local
1783 	if (ocfs2_is_hard_readonly(osb))  in ocfs2_mount_volume()
1786 	mutex_init(&osb->obs_trim_fs_mutex);  in ocfs2_mount_volume()
1788 	status = ocfs2_dlm_init(osb);  in ocfs2_mount_volume()
1791 		if (status == -EBADR && ocfs2_userspace_stack(osb))  in ocfs2_mount_volume()
1797 	status = ocfs2_super_lock(osb, 1);  in ocfs2_mount_volume()
1804 	status = ocfs2_find_slot(osb);  in ocfs2_mount_volume()
1811 	status = ocfs2_init_local_system_inodes(osb);  in ocfs2_mount_volume()
1817 	status = ocfs2_check_volume(osb);  in ocfs2_mount_volume()
1823 	status = ocfs2_truncate_log_init(osb);  in ocfs2_mount_volume()
1829 	ocfs2_super_unlock(osb, 1);  in ocfs2_mount_volume()
1833 	ocfs2_free_replay_slots(osb);  in ocfs2_mount_volume()
1835 	if (osb->local_alloc_state == OCFS2_LA_ENABLED)  in ocfs2_mount_volume()
1836 		ocfs2_shutdown_local_alloc(osb);  in ocfs2_mount_volume()
1837 	ocfs2_release_system_inodes(osb);  in ocfs2_mount_volume()
1839 	ocfs2_free_slot_info(osb);  in ocfs2_mount_volume()
1840 	ocfs2_journal_shutdown(osb);  in ocfs2_mount_volume()
1842 	ocfs2_super_unlock(osb, 1);  in ocfs2_mount_volume()
1844 	ocfs2_dlm_shutdown(osb, 0);  in ocfs2_mount_volume()
1852 	struct ocfs2_super *osb = NULL;  in ocfs2_dismount_volume()  local
1858 	osb = OCFS2_SB(sb);  in ocfs2_dismount_volume()
1859 	BUG_ON(!osb);  in ocfs2_dismount_volume()
1863 	ocfs2_filecheck_remove_sysfs(osb);  in ocfs2_dismount_volume()
1865 	kset_unregister(osb->osb_dev_kset);  in ocfs2_dismount_volume()
1868 	ocfs2_orphan_scan_stop(osb);  in ocfs2_dismount_volume()
1870 	ocfs2_disable_quotas(osb);  in ocfs2_dismount_volume()
1873 	WARN_ON(!llist_empty(&osb->dquot_drop_list));  in ocfs2_dismount_volume()
1875 	cancel_work_sync(&osb->dquot_drop_work);  in ocfs2_dismount_volume()
1877 	ocfs2_shutdown_local_alloc(osb);  in ocfs2_dismount_volume()
1879 	ocfs2_truncate_log_shutdown(osb);  in ocfs2_dismount_volume()
1882 	ocfs2_recovery_exit(osb);  in ocfs2_dismount_volume()
1886 	ocfs2_purge_refcount_trees(osb);  in ocfs2_dismount_volume()
1890 	if (osb->cconn) {  in ocfs2_dismount_volume()
1891 		tmp = ocfs2_super_lock(osb, 1);  in ocfs2_dismount_volume()
1898 	if (osb->slot_num != OCFS2_INVALID_SLOT)  in ocfs2_dismount_volume()
1899 		ocfs2_put_slot(osb);  in ocfs2_dismount_volume()
1901 	if (osb->cconn)  in ocfs2_dismount_volume()
1902 		ocfs2_super_unlock(osb, 1);  in ocfs2_dismount_volume()
1904 	ocfs2_release_system_inodes(osb);  in ocfs2_dismount_volume()
1906 	ocfs2_journal_shutdown(osb);  in ocfs2_dismount_volume()
1914 	if (!mnt_err && !ocfs2_mount_local(osb) && osb->uuid_str &&  in ocfs2_dismount_volume()
1915 	    !ocfs2_is_hard_readonly(osb))  in ocfs2_dismount_volume()
1918 	ocfs2_dlm_shutdown(osb, hangup_needed);  in ocfs2_dismount_volume()
1920 	ocfs2_blockcheck_stats_debugfs_remove(&osb->osb_ecc_stats);  in ocfs2_dismount_volume()
1921 	debugfs_remove_recursive(osb->osb_debug_root);  in ocfs2_dismount_volume()
1924 		ocfs2_cluster_hangup(osb->uuid_str, strlen(osb->uuid_str));  in ocfs2_dismount_volume()
1926 	atomic_set(&osb->vol_state, VOLUME_DISMOUNTED);  in ocfs2_dismount_volume()
1928 	if (ocfs2_mount_local(osb))  in ocfs2_dismount_volume()
1931 		snprintf(nodestr, sizeof(nodestr), "%u", osb->node_num);  in ocfs2_dismount_volume()
1934 	       osb->dev_str, nodestr);  in ocfs2_dismount_volume()
1936 	ocfs2_delete_osb(osb);  in ocfs2_dismount_volume()
1937 	kfree(osb);  in ocfs2_dismount_volume()
1942 static int ocfs2_setup_osb_uuid(struct ocfs2_super *osb, const unsigned char *uuid,  in ocfs2_setup_osb_uuid()  argument
1950 	osb->uuid_str = kzalloc(OCFS2_VOL_UUID_LEN * 2 + 1, GFP_KERNEL);  in ocfs2_setup_osb_uuid()
1951 	if (osb->uuid_str == NULL)  in ocfs2_setup_osb_uuid()
1954 	for (i = 0, ptr = osb->uuid_str; i < OCFS2_VOL_UUID_LEN; i++) {  in ocfs2_setup_osb_uuid()
1969 static int ocfs2_journal_addressable(struct ocfs2_super *osb)  in ocfs2_journal_addressable()  argument
1973 		ocfs2_clusters_to_blocks(osb->sb,  in ocfs2_journal_addressable()
1974 					 osb->osb_clusters_at_boot) - 1;  in ocfs2_journal_addressable()
1982 	if (!(OCFS2_HAS_COMPAT_FEATURE(osb->sb,  in ocfs2_journal_addressable()
1984 	      jbd2_journal_check_used_features(osb->journal->j_journal, 0, 0,  in ocfs2_journal_addressable()
2005 	struct ocfs2_super *osb;  in ocfs2_initialize_super()  local
2008 	osb = kzalloc(sizeof(struct ocfs2_super), GFP_KERNEL);  in ocfs2_initialize_super()
2009 	if (!osb) {  in ocfs2_initialize_super()
2015 	sb->s_fs_info = osb;  in ocfs2_initialize_super()
2032 	osb->osb_dx_mask = (1 << (cbits - bbits)) - 1;  in ocfs2_initialize_super()
2035 		osb->osb_dx_seed[i] = le32_to_cpu(di->id2.i_super.s_dx_seed[i]);  in ocfs2_initialize_super()
2036 	osb->osb_dx_seed[3] = le32_to_cpu(di->id2.i_super.s_uuid_hash);  in ocfs2_initialize_super()
2038 	osb->sb = sb;  in ocfs2_initialize_super()
2039 	osb->s_sectsize_bits = blksize_bits(sector_size);  in ocfs2_initialize_super()
2040 	BUG_ON(!osb->s_sectsize_bits);  in ocfs2_initialize_super()
2042 	spin_lock_init(&osb->dc_task_lock);  in ocfs2_initialize_super()
2043 	init_waitqueue_head(&osb->dc_event);  in ocfs2_initialize_super()
2044 	osb->dc_work_sequence = 0;  in ocfs2_initialize_super()
2045 	osb->dc_wake_sequence = 0;  in ocfs2_initialize_super()
2046 	INIT_LIST_HEAD(&osb->blocked_lock_list);  in ocfs2_initialize_super()
2047 	osb->blocked_lock_count = 0;  in ocfs2_initialize_super()
2048 	spin_lock_init(&osb->osb_lock);  in ocfs2_initialize_super()
2049 	spin_lock_init(&osb->osb_xattr_lock);  in ocfs2_initialize_super()
2050 	ocfs2_init_steal_slots(osb);  in ocfs2_initialize_super()
2052 	mutex_init(&osb->system_file_mutex);  in ocfs2_initialize_super()
2054 	atomic_set(&osb->alloc_stats.moves, 0);  in ocfs2_initialize_super()
2055 	atomic_set(&osb->alloc_stats.local_data, 0);  in ocfs2_initialize_super()
2056 	atomic_set(&osb->alloc_stats.bitmap_data, 0);  in ocfs2_initialize_super()
2057 	atomic_set(&osb->alloc_stats.bg_allocs, 0);  in ocfs2_initialize_super()
2058 	atomic_set(&osb->alloc_stats.bg_extends, 0);  in ocfs2_initialize_super()
2061 	osb->osb_ecc_stats = *stats;  in ocfs2_initialize_super()
2063 	ocfs2_init_node_maps(osb);  in ocfs2_initialize_super()
2065 	snprintf(osb->dev_str, sizeof(osb->dev_str), "%u,%u",  in ocfs2_initialize_super()
2066 		 MAJOR(osb->sb->s_dev), MINOR(osb->sb->s_dev));  in ocfs2_initialize_super()
2068 	osb->max_slots = le16_to_cpu(di->id2.i_super.s_max_slots);  in ocfs2_initialize_super()
2069 	if (osb->max_slots > OCFS2_MAX_SLOTS || osb->max_slots == 0) {  in ocfs2_initialize_super()
2071 		     osb->max_slots);  in ocfs2_initialize_super()
2076 	ocfs2_orphan_scan_init(osb);  in ocfs2_initialize_super()
2078 	status = ocfs2_recovery_init(osb);  in ocfs2_initialize_super()
2085 	init_waitqueue_head(&osb->checkpoint_event);  in ocfs2_initialize_super()
2087 	osb->s_atime_quantum = OCFS2_DEFAULT_ATIME_QUANTUM;  in ocfs2_initialize_super()
2089 	osb->slot_num = OCFS2_INVALID_SLOT;  in ocfs2_initialize_super()
2091 	osb->s_xattr_inline_size = le16_to_cpu(  in ocfs2_initialize_super()
2094 	osb->local_alloc_state = OCFS2_LA_UNUSED;  in ocfs2_initialize_super()
2095 	osb->local_alloc_bh = NULL;  in ocfs2_initialize_super()
2096 	INIT_DELAYED_WORK(&osb->la_enable_wq, ocfs2_la_enable_worker);  in ocfs2_initialize_super()
2098 	init_waitqueue_head(&osb->osb_mount_event);  in ocfs2_initialize_super()
2100 	ocfs2_resmap_init(osb, &osb->osb_la_resmap);  in ocfs2_initialize_super()
2102 	osb->vol_label = kmalloc(OCFS2_MAX_VOL_LABEL_LEN, GFP_KERNEL);  in ocfs2_initialize_super()
2103 	if (!osb->vol_label) {  in ocfs2_initialize_super()
2109 	osb->slot_recovery_generations =  in ocfs2_initialize_super()
2110 		kcalloc(osb->max_slots, sizeof(*osb->slot_recovery_generations),  in ocfs2_initialize_super()
2112 	if (!osb->slot_recovery_generations) {  in ocfs2_initialize_super()
2118 	init_waitqueue_head(&osb->osb_wipe_event);  in ocfs2_initialize_super()
2119 	osb->osb_orphan_wipes = kcalloc(osb->max_slots,  in ocfs2_initialize_super()
2120 					sizeof(*osb->osb_orphan_wipes),  in ocfs2_initialize_super()
2122 	if (!osb->osb_orphan_wipes) {  in ocfs2_initialize_super()
2128 	osb->osb_rf_lock_tree = RB_ROOT;  in ocfs2_initialize_super()
2130 	osb->s_feature_compat =  in ocfs2_initialize_super()
2132 	osb->s_feature_ro_compat =  in ocfs2_initialize_super()
2134 	osb->s_feature_incompat =  in ocfs2_initialize_super()
2137 	if ((i = OCFS2_HAS_INCOMPAT_FEATURE(osb->sb, ~OCFS2_FEATURE_INCOMPAT_SUPP))) {  in ocfs2_initialize_super()
2143 …if (!sb_rdonly(osb->sb) && (i = OCFS2_HAS_RO_COMPAT_FEATURE(osb->sb, ~OCFS2_FEATURE_RO_COMPAT_SUPP…  in ocfs2_initialize_super()
2150 	if (ocfs2_clusterinfo_valid(osb)) {  in ocfs2_initialize_super()
2157 		osb->osb_stackflags =  in ocfs2_initialize_super()
2159 		memcpy(osb->osb_cluster_stack,  in ocfs2_initialize_super()
2162 		if (strlen(osb->osb_cluster_stack) != OCFS2_STACK_LABEL_LEN) {  in ocfs2_initialize_super()
2166 			     osb->osb_cluster_stack);  in ocfs2_initialize_super()
2170 		memcpy(osb->osb_cluster_name,  in ocfs2_initialize_super()
2176 		osb->osb_cluster_stack[0] = '\0';  in ocfs2_initialize_super()
2179 	get_random_bytes(&osb->s_next_generation, sizeof(u32));  in ocfs2_initialize_super()
2186 	status = ocfs2_journal_alloc(osb);  in ocfs2_initialize_super()
2190 	INIT_WORK(&osb->dquot_drop_work, ocfs2_drop_dquot_refs);  in ocfs2_initialize_super()
2191 	init_llist_head(&osb->dquot_drop_list);  in ocfs2_initialize_super()
2194 	osb->s_clustersize_bits =  in ocfs2_initialize_super()
2196 	osb->s_clustersize = 1 << osb->s_clustersize_bits;  in ocfs2_initialize_super()
2198 	if (osb->s_clustersize < OCFS2_MIN_CLUSTERSIZE ||  in ocfs2_initialize_super()
2199 	    osb->s_clustersize > OCFS2_MAX_CLUSTERSIZE) {  in ocfs2_initialize_super()
2201 		     osb->s_clustersize);  in ocfs2_initialize_super()
2206 	total_blocks = ocfs2_clusters_to_blocks(osb->sb,  in ocfs2_initialize_super()
2209 	status = generic_check_addressable(osb->sb->s_blocksize_bits,  in ocfs2_initialize_super()
2218 	if (ocfs2_setup_osb_uuid(osb, di->id2.i_super.s_uuid,  in ocfs2_initialize_super()
2225 	strscpy(osb->vol_label, di->id2.i_super.s_label,  in ocfs2_initialize_super()
2227 	osb->root_blkno = le64_to_cpu(di->id2.i_super.s_root_blkno);  in ocfs2_initialize_super()
2228 	osb->system_dir_blkno = le64_to_cpu(di->id2.i_super.s_system_dir_blkno);  in ocfs2_initialize_super()
2229 	osb->first_cluster_group_blkno =  in ocfs2_initialize_super()
2231 	osb->fs_generation = le32_to_cpu(di->i_fs_generation);  in ocfs2_initialize_super()
2232 	osb->uuid_hash = le32_to_cpu(di->id2.i_super.s_uuid_hash);  in ocfs2_initialize_super()
2233 	trace_ocfs2_initialize_super(osb->vol_label, osb->uuid_str,  in ocfs2_initialize_super()
2234 				     (unsigned long long)osb->root_blkno,  in ocfs2_initialize_super()
2235 				     (unsigned long long)osb->system_dir_blkno,  in ocfs2_initialize_super()
2236 				     osb->s_clustersize_bits);  in ocfs2_initialize_super()
2238 	osb->osb_dlm_debug = ocfs2_new_dlm_debug();  in ocfs2_initialize_super()
2239 	if (!osb->osb_dlm_debug) {  in ocfs2_initialize_super()
2245 	atomic_set(&osb->vol_state, VOLUME_INIT);  in ocfs2_initialize_super()
2248 	status = ocfs2_init_global_system_inodes(osb);  in ocfs2_initialize_super()
2257 	inode = ocfs2_get_system_file_inode(osb, GLOBAL_BITMAP_SYSTEM_INODE,  in ocfs2_initialize_super()
2265 	osb->bitmap_blkno = OCFS2_I(inode)->ip_blkno;  in ocfs2_initialize_super()
2266 	osb->osb_clusters_at_boot = OCFS2_I(inode)->ip_clusters;  in ocfs2_initialize_super()
2269 	osb->bitmap_cpg = ocfs2_group_bitmap_size(sb, 0,  in ocfs2_initialize_super()
2270 				 osb->s_feature_incompat) * 8;  in ocfs2_initialize_super()
2272 	status = ocfs2_init_slot_info(osb);  in ocfs2_initialize_super()
2278 	osb->ocfs2_wq = alloc_ordered_workqueue("ocfs2_wq", WQ_MEM_RECLAIM);  in ocfs2_initialize_super()
2279 	if (!osb->ocfs2_wq) {  in ocfs2_initialize_super()
2288 	ocfs2_free_slot_info(osb);  in ocfs2_initialize_super()
2290 	ocfs2_release_system_inodes(osb);  in ocfs2_initialize_super()
2292 	ocfs2_put_dlm_debug(osb->osb_dlm_debug);  in ocfs2_initialize_super()
2294 	kfree(osb->uuid_str);  in ocfs2_initialize_super()
2296 	kfree(osb->journal);  in ocfs2_initialize_super()
2298 	kfree(osb->osb_orphan_wipes);  in ocfs2_initialize_super()
2300 	kfree(osb->slot_recovery_generations);  in ocfs2_initialize_super()
2302 	kfree(osb->vol_label);  in ocfs2_initialize_super()
2304 	kfree(osb->recovery_map);  in ocfs2_initialize_super()
2306 	kfree(osb);  in ocfs2_initialize_super()
2382 static int ocfs2_check_volume(struct ocfs2_super *osb)  in ocfs2_check_volume()  argument
2392 	status = ocfs2_journal_init(osb, &dirty);  in ocfs2_check_volume()
2400 	status = ocfs2_journal_addressable(osb);  in ocfs2_check_volume()
2408 		status = ocfs2_journal_wipe(osb->journal, 0);  in ocfs2_check_volume()
2415 		       "unmounted cleanly, recovering it.\n", osb->dev_str);  in ocfs2_check_volume()
2418 	local = ocfs2_mount_local(osb);  in ocfs2_check_volume()
2421 	status = ocfs2_journal_load(osb->journal, local, dirty);  in ocfs2_check_volume()
2427 	if (osb->s_mount_opt & OCFS2_MOUNT_JOURNAL_ASYNC_COMMIT)  in ocfs2_check_volume()
2428 		jbd2_journal_set_features(osb->journal->j_journal,  in ocfs2_check_volume()
2432 		jbd2_journal_clear_features(osb->journal->j_journal,  in ocfs2_check_volume()
2438 		status = ocfs2_begin_local_alloc_recovery(osb,  in ocfs2_check_volume()
2439 							  osb->slot_num,  in ocfs2_check_volume()
2449 	status = ocfs2_load_local_alloc(osb);  in ocfs2_check_volume()
2458 		osb->local_alloc_copy = local_alloc;  in ocfs2_check_volume()
2465 	status = ocfs2_mark_dead_nodes(osb);  in ocfs2_check_volume()
2471 	status = ocfs2_compute_replay_slots(osb);  in ocfs2_check_volume()
2489 static void ocfs2_delete_osb(struct ocfs2_super *osb)  in ocfs2_delete_osb()  argument
2494 	if (osb->ocfs2_wq)  in ocfs2_delete_osb()
2495 		destroy_workqueue(osb->ocfs2_wq);  in ocfs2_delete_osb()
2497 	ocfs2_free_slot_info(osb);  in ocfs2_delete_osb()
2499 	kfree(osb->osb_orphan_wipes);  in ocfs2_delete_osb()
2500 	kfree(osb->slot_recovery_generations);  in ocfs2_delete_osb()
2506 	kfree(osb->journal);  in ocfs2_delete_osb()
2507 	kfree(osb->local_alloc_copy);  in ocfs2_delete_osb()
2508 	kfree(osb->uuid_str);  in ocfs2_delete_osb()
2509 	kfree(osb->vol_label);  in ocfs2_delete_osb()
2510 	ocfs2_put_dlm_debug(osb->osb_dlm_debug);  in ocfs2_delete_osb()
2511 	memset(osb, 0, sizeof(struct ocfs2_super));  in ocfs2_delete_osb()
2522 	struct ocfs2_super *osb = OCFS2_SB(sb);  in ocfs2_handle_error()  local
2525 	ocfs2_set_osb_flag(osb, OCFS2_OSB_ERROR_FS);  in ocfs2_handle_error()
2529 	if (osb->s_mount_opt & OCFS2_MOUNT_ERRORS_PANIC) {  in ocfs2_handle_error()
2532 	} else if (osb->s_mount_opt & OCFS2_MOUNT_ERRORS_CONT) {  in ocfs2_handle_error()
2537 		if (sb_rdonly(sb) && (ocfs2_is_soft_readonly(osb) || ocfs2_is_hard_readonly(osb)))  in ocfs2_handle_error()
2542 		ocfs2_set_ro_flag(osb, 0);  in ocfs2_handle_error()