118 static u64 get_features(struct btrfs_fs_info *fs_info,  in get_features()  argument
121 	struct btrfs_super_block *disk_super = fs_info->super_copy;  in get_features()
130 static void set_features(struct btrfs_fs_info *fs_info,  in set_features()  argument
133 	struct btrfs_super_block *disk_super = fs_info->super_copy;  in set_features()
177 	struct btrfs_fs_info *fs_info = to_fs_info(kobj);  in btrfs_feature_attr_show()  local
179 	if (fs_info) {  in btrfs_feature_attr_show()
180 		u64 features = get_features(fs_info, fa->feature_set);  in btrfs_feature_attr_show()
193 	struct btrfs_fs_info *fs_info;  in btrfs_feature_attr_store()  local
199 	fs_info = to_fs_info(kobj);  in btrfs_feature_attr_store()
200 	if (!fs_info)  in btrfs_feature_attr_store()
203 	if (sb_rdonly(fs_info->sb))  in btrfs_feature_attr_store()
221 	features = get_features(fs_info, fa->feature_set);  in btrfs_feature_attr_store()
230 		btrfs_info(fs_info,  in btrfs_feature_attr_store()
236 	btrfs_info(fs_info, "%s %s feature flag",  in btrfs_feature_attr_store()
239 	spin_lock(&fs_info->super_lock);  in btrfs_feature_attr_store()
240 	features = get_features(fs_info, fa->feature_set);  in btrfs_feature_attr_store()
245 	set_features(fs_info, fa->feature_set, features);  in btrfs_feature_attr_store()
246 	spin_unlock(&fs_info->super_lock);  in btrfs_feature_attr_store()
251 	btrfs_set_pending(fs_info, COMMIT);  in btrfs_feature_attr_store()
252 	wake_up_process(fs_info->transaction_kthread);  in btrfs_feature_attr_store()
260 	struct btrfs_fs_info *fs_info = to_fs_info(kobj);  in btrfs_feature_visible()  local
263 	if (fs_info) {  in btrfs_feature_visible()
268 		features = get_features(fs_info, fa->feature_set);  in btrfs_feature_visible()
443 	struct btrfs_fs_info *fs_info = discard_to_fs_info(kobj);  in btrfs_discardable_bytes_show()  local
446 			atomic64_read(&fs_info->discard_ctl.discardable_bytes));  in btrfs_discardable_bytes_show()
454 	struct btrfs_fs_info *fs_info = discard_to_fs_info(kobj);  in btrfs_discardable_extents_show()  local
457 			atomic_read(&fs_info->discard_ctl.discardable_extents));  in btrfs_discardable_extents_show()
465 	struct btrfs_fs_info *fs_info = discard_to_fs_info(kobj);  in btrfs_discard_bitmap_bytes_show()  local
468 			  fs_info->discard_ctl.discard_bitmap_bytes);  in btrfs_discard_bitmap_bytes_show()
476 	struct btrfs_fs_info *fs_info = discard_to_fs_info(kobj);  in btrfs_discard_bytes_saved_show()  local
479 		atomic64_read(&fs_info->discard_ctl.discard_bytes_saved));  in btrfs_discard_bytes_saved_show()
487 	struct btrfs_fs_info *fs_info = discard_to_fs_info(kobj);  in btrfs_discard_extent_bytes_show()  local
490 			  fs_info->discard_ctl.discard_extent_bytes);  in btrfs_discard_extent_bytes_show()
498 	struct btrfs_fs_info *fs_info = discard_to_fs_info(kobj);  in btrfs_discard_iops_limit_show()  local
501 			  READ_ONCE(fs_info->discard_ctl.iops_limit));  in btrfs_discard_iops_limit_show()
508 	struct btrfs_fs_info *fs_info = discard_to_fs_info(kobj);  in btrfs_discard_iops_limit_store()  local
509 	struct btrfs_discard_ctl *discard_ctl = &fs_info->discard_ctl;  in btrfs_discard_iops_limit_store()
529 	struct btrfs_fs_info *fs_info = discard_to_fs_info(kobj);  in btrfs_discard_kbps_limit_show()  local
532 			  READ_ONCE(fs_info->discard_ctl.kbps_limit));  in btrfs_discard_kbps_limit_show()
539 	struct btrfs_fs_info *fs_info = discard_to_fs_info(kobj);  in btrfs_discard_kbps_limit_store()  local
540 	struct btrfs_discard_ctl *discard_ctl = &fs_info->discard_ctl;  in btrfs_discard_kbps_limit_store()
559 	struct btrfs_fs_info *fs_info = discard_to_fs_info(kobj);  in btrfs_discard_max_discard_size_show()  local
562 			  READ_ONCE(fs_info->discard_ctl.max_discard_size));  in btrfs_discard_max_discard_size_show()
569 	struct btrfs_fs_info *fs_info = discard_to_fs_info(kobj);  in btrfs_discard_max_discard_size_store()  local
570 	struct btrfs_discard_ctl *discard_ctl = &fs_info->discard_ctl;  in btrfs_discard_max_discard_size_store()
643 	struct btrfs_fs_info *fs_info = to_fs_info(kobj->parent);  in global_rsv_size_show()  local
644 	struct btrfs_block_rsv *block_rsv = &fs_info->global_block_rsv;  in global_rsv_size_show()
652 	struct btrfs_fs_info *fs_info = to_fs_info(kobj->parent);  in global_rsv_reserved_show()  local
653 	struct btrfs_block_rsv *block_rsv = &fs_info->global_block_rsv;  in global_rsv_reserved_show()
739 	struct btrfs_fs_info *fs_info = to_fs_info(get_btrfs_kobj(kobj));  in btrfs_chunk_size_store()  local
746 	if (!fs_info->fs_devices)  in btrfs_chunk_size_store()
749 	if (btrfs_is_zoned(fs_info))  in btrfs_chunk_size_store()
765 	val = min(div_factor(fs_info->fs_devices->total_rw_bytes, 1), val);  in btrfs_chunk_size_store()
788 	struct btrfs_fs_info *fs_info = to_fs_info(get_btrfs_kobj(kobj));  in btrfs_force_chunk_alloc_store()  local
796 	if (sb_rdonly(fs_info->sb))  in btrfs_force_chunk_alloc_store()
810 	trans = btrfs_start_transaction(fs_info->tree_root, 0);  in btrfs_force_chunk_alloc_store()
921 	struct btrfs_fs_info *fs_info = to_fs_info(kobj);  in btrfs_label_show()  local
922 	char *label = fs_info->super_copy->label;  in btrfs_label_show()
925 	spin_lock(&fs_info->super_lock);  in btrfs_label_show()
927 	spin_unlock(&fs_info->super_lock);  in btrfs_label_show()
936 	struct btrfs_fs_info *fs_info = to_fs_info(kobj);  in btrfs_label_store()  local
939 	if (!fs_info)  in btrfs_label_store()
942 	if (sb_rdonly(fs_info->sb))  in btrfs_label_store()
954 	spin_lock(&fs_info->super_lock);  in btrfs_label_store()
955 	memset(fs_info->super_copy->label, 0, BTRFS_LABEL_SIZE);  in btrfs_label_store()
956 	memcpy(fs_info->super_copy->label, buf, p_len);  in btrfs_label_store()
957 	spin_unlock(&fs_info->super_lock);  in btrfs_label_store()
962 	btrfs_set_pending(fs_info, COMMIT);  in btrfs_label_store()
963 	wake_up_process(fs_info->transaction_kthread);  in btrfs_label_store()
972 	struct btrfs_fs_info *fs_info = to_fs_info(kobj);  in btrfs_nodesize_show()  local
974 	return sysfs_emit(buf, "%u\n", fs_info->super_copy->nodesize);  in btrfs_nodesize_show()
982 	struct btrfs_fs_info *fs_info = to_fs_info(kobj);  in btrfs_sectorsize_show()  local
984 	return sysfs_emit(buf, "%u\n", fs_info->super_copy->sectorsize);  in btrfs_sectorsize_show()
992 	struct btrfs_fs_info *fs_info = to_fs_info(kobj);  in btrfs_commit_stats_show()  local
999 		fs_info->commit_stats.commit_count,  in btrfs_commit_stats_show()
1000 		div_u64(fs_info->commit_stats.last_commit_dur, NSEC_PER_MSEC),  in btrfs_commit_stats_show()
1001 		div_u64(fs_info->commit_stats.max_commit_dur, NSEC_PER_MSEC),  in btrfs_commit_stats_show()
1002 		div_u64(fs_info->commit_stats.total_commit_dur, NSEC_PER_MSEC));  in btrfs_commit_stats_show()
1009 	struct btrfs_fs_info *fs_info = to_fs_info(kobj);  in btrfs_commit_stats_store()  local
1013 	if (!fs_info)  in btrfs_commit_stats_store()
1025 	WRITE_ONCE(fs_info->commit_stats.max_commit_dur, 0);  in btrfs_commit_stats_store()
1034 	struct btrfs_fs_info *fs_info = to_fs_info(kobj);  in btrfs_clone_alignment_show()  local
1036 	return sysfs_emit(buf, "%u\n", fs_info->super_copy->sectorsize);  in btrfs_clone_alignment_show()
1044 	struct btrfs_fs_info *fs_info = to_fs_info(kobj);  in quota_override_show()  local
1047 	quota_override = test_bit(BTRFS_FS_QUOTA_OVERRIDE, &fs_info->flags);  in quota_override_show()
1055 	struct btrfs_fs_info *fs_info = to_fs_info(kobj);  in quota_override_store()  local
1059 	if (!fs_info)  in quota_override_store()
1072 		set_bit(BTRFS_FS_QUOTA_OVERRIDE, &fs_info->flags);  in quota_override_store()
1074 		clear_bit(BTRFS_FS_QUOTA_OVERRIDE, &fs_info->flags);  in quota_override_store()
1084 	struct btrfs_fs_info *fs_info = to_fs_info(kobj);  in btrfs_metadata_uuid_show()  local
1086 	return sysfs_emit(buf, "%pU\n", fs_info->fs_devices->metadata_uuid);  in btrfs_metadata_uuid_show()
1094 	struct btrfs_fs_info *fs_info = to_fs_info(kobj);  in btrfs_checksum_show()  local
1095 	u16 csum_type = btrfs_super_csum_type(fs_info->super_copy);  in btrfs_checksum_show()
1099 			  crypto_shash_driver_name(fs_info->csum_shash));  in btrfs_checksum_show()
1107 	struct btrfs_fs_info *fs_info = to_fs_info(kobj);  in btrfs_exclusive_operation_show()  local
1110 	switch (READ_ONCE(fs_info->exclusive_operation)) {  in btrfs_exclusive_operation_show()
1146 	struct btrfs_fs_info *fs_info = to_fs_info(kobj);  in btrfs_generation_show()  local
1148 	return sysfs_emit(buf, "%llu\n", fs_info->generation);  in btrfs_generation_show()
1188 				btrfs_info(fs_devices->fs_info,  in btrfs_read_policy_store()
1204 	struct btrfs_fs_info *fs_info = to_fs_info(kobj);  in btrfs_bg_reclaim_threshold_show()  local
1206 	return sysfs_emit(buf, "%d\n", READ_ONCE(fs_info->bg_reclaim_threshold));  in btrfs_bg_reclaim_threshold_show()
1213 	struct btrfs_fs_info *fs_info = to_fs_info(kobj);  in btrfs_bg_reclaim_threshold_store()  local
1224 	WRITE_ONCE(fs_info->bg_reclaim_threshold, thresh);  in btrfs_bg_reclaim_threshold_store()
1276 	return to_fs_devs(kobj)->fs_info;  in to_fs_info()
1305 static int addrm_unknown_feature_attrs(struct btrfs_fs_info *fs_info, bool add)  in addrm_unknown_feature_attrs()  argument
1316 		u64 features = get_features(fs_info, set);  in addrm_unknown_feature_attrs()
1333 				ret = sysfs_merge_group(&fs_info->fs_devices->fsid_kobj,  in addrm_unknown_feature_attrs()
1338 				sysfs_unmerge_group(&fs_info->fs_devices->fsid_kobj,  in addrm_unknown_feature_attrs()
1396 void btrfs_sysfs_remove_mounted(struct btrfs_fs_info *fs_info)  in btrfs_sysfs_remove_mounted()  argument
1398 	struct kobject *fsid_kobj = &fs_info->fs_devices->fsid_kobj;  in btrfs_sysfs_remove_mounted()
1402 	if (fs_info->space_info_kobj) {  in btrfs_sysfs_remove_mounted()
1403 		sysfs_remove_files(fs_info->space_info_kobj, allocation_attrs);  in btrfs_sysfs_remove_mounted()
1404 		kobject_del(fs_info->space_info_kobj);  in btrfs_sysfs_remove_mounted()
1405 		kobject_put(fs_info->space_info_kobj);  in btrfs_sysfs_remove_mounted()
1407 	if (fs_info->discard_kobj) {  in btrfs_sysfs_remove_mounted()
1408 		sysfs_remove_files(fs_info->discard_kobj, discard_attrs);  in btrfs_sysfs_remove_mounted()
1409 		kobject_del(fs_info->discard_kobj);  in btrfs_sysfs_remove_mounted()
1410 		kobject_put(fs_info->discard_kobj);  in btrfs_sysfs_remove_mounted()
1413 	if (fs_info->debug_kobj) {  in btrfs_sysfs_remove_mounted()
1414 		sysfs_remove_files(fs_info->debug_kobj, btrfs_debug_mount_attrs);  in btrfs_sysfs_remove_mounted()
1415 		kobject_del(fs_info->debug_kobj);  in btrfs_sysfs_remove_mounted()
1416 		kobject_put(fs_info->debug_kobj);  in btrfs_sysfs_remove_mounted()
1419 	addrm_unknown_feature_attrs(fs_info, false);  in btrfs_sysfs_remove_mounted()
1422 	btrfs_sysfs_remove_fs_devices(fs_info->fs_devices);  in btrfs_sysfs_remove_mounted()
1506 	struct btrfs_fs_info *fs_info = cache->fs_info;  in btrfs_sysfs_add_block_group_type()  local
1525 		btrfs_warn(cache->fs_info,  in btrfs_sysfs_add_block_group_type()
1560 		btrfs_warn(fs_info,  in btrfs_sysfs_add_block_group_type()
1609 int btrfs_sysfs_add_space_info_type(struct btrfs_fs_info *fs_info,  in btrfs_sysfs_add_space_info_type()  argument
1615 				   fs_info->space_info_kobj, "%s",  in btrfs_sysfs_add_space_info_type()
1633 	devices_kobj = device->fs_info->fs_devices->devices_kobj;  in btrfs_sysfs_remove_device()
1807 	devices_kobj = device->fs_info->fs_devices->devices_kobj;  in btrfs_sysfs_add_device()
1808 	devinfo_kobj = device->fs_info->fs_devices->devinfo_kobj;  in btrfs_sysfs_add_device()
1819 			btrfs_warn(device->fs_info,  in btrfs_sysfs_add_device()
1831 		btrfs_warn(device->fs_info,  in btrfs_sysfs_add_device()
1890 		btrfs_warn(fs_devices->fs_info,  in btrfs_sysfs_update_sprout_fsid()
1901 		btrfs_warn(device->fs_devices->fs_info,  in btrfs_sysfs_update_devid()
1931 		btrfs_err(fs_devs->fs_info,  in btrfs_sysfs_add_fsid()
1940 		btrfs_err(fs_devs->fs_info,  in btrfs_sysfs_add_fsid()
1949 int btrfs_sysfs_add_mounted(struct btrfs_fs_info *fs_info)  in btrfs_sysfs_add_mounted()  argument
1952 	struct btrfs_fs_devices *fs_devs = fs_info->fs_devices;  in btrfs_sysfs_add_mounted()
1971 	fs_info->debug_kobj = kobject_create_and_add("debug", fsid_kobj);  in btrfs_sysfs_add_mounted()
1972 	if (!fs_info->debug_kobj) {  in btrfs_sysfs_add_mounted()
1977 	error = sysfs_create_files(fs_info->debug_kobj, btrfs_debug_mount_attrs);  in btrfs_sysfs_add_mounted()
1983 	fs_info->discard_kobj = kobject_create_and_add("discard", fsid_kobj);  in btrfs_sysfs_add_mounted()
1984 	if (!fs_info->discard_kobj) {  in btrfs_sysfs_add_mounted()
1989 	error = sysfs_create_files(fs_info->discard_kobj, discard_attrs);  in btrfs_sysfs_add_mounted()
1993 	error = addrm_unknown_feature_attrs(fs_info, true);  in btrfs_sysfs_add_mounted()
1997 	error = sysfs_create_link(fsid_kobj, &fs_info->sb->s_bdi->dev->kobj, "bdi");  in btrfs_sysfs_add_mounted()
2001 	fs_info->space_info_kobj = kobject_create_and_add("allocation",  in btrfs_sysfs_add_mounted()
2003 	if (!fs_info->space_info_kobj) {  in btrfs_sysfs_add_mounted()
2008 	error = sysfs_create_files(fs_info->space_info_kobj, allocation_attrs);  in btrfs_sysfs_add_mounted()
2014 	btrfs_sysfs_remove_mounted(fs_info);  in btrfs_sysfs_add_mounted()
2022 	struct btrfs_fs_info *fs_info = to_fs_info(qgroups_kobj->parent);  in qgroup_enabled_show()  local
2025 	spin_lock(&fs_info->qgroup_lock);  in qgroup_enabled_show()
2026 	enabled = fs_info->qgroup_flags & BTRFS_QGROUP_STATUS_FLAG_ON;  in qgroup_enabled_show()
2027 	spin_unlock(&fs_info->qgroup_lock);  in qgroup_enabled_show()
2037 	struct btrfs_fs_info *fs_info = to_fs_info(qgroups_kobj->parent);  in qgroup_inconsistent_show()  local
2040 	spin_lock(&fs_info->qgroup_lock);  in qgroup_inconsistent_show()
2041 	inconsistent = (fs_info->qgroup_flags & BTRFS_QGROUP_STATUS_FLAG_INCONSISTENT);  in qgroup_inconsistent_show()
2042 	spin_unlock(&fs_info->qgroup_lock);  in qgroup_inconsistent_show()
2052 	struct btrfs_fs_info *fs_info = to_fs_info(qgroups_kobj->parent);  in qgroup_drop_subtree_thres_show()  local
2055 	spin_lock(&fs_info->qgroup_lock);  in qgroup_drop_subtree_thres_show()
2056 	result = fs_info->qgroup_drop_subtree_thres;  in qgroup_drop_subtree_thres_show()
2057 	spin_unlock(&fs_info->qgroup_lock);  in qgroup_drop_subtree_thres_show()
2066 	struct btrfs_fs_info *fs_info = to_fs_info(qgroups_kobj->parent);  in qgroup_drop_subtree_thres_store()  local
2077 	spin_lock(&fs_info->qgroup_lock);  in qgroup_drop_subtree_thres_store()
2078 	fs_info->qgroup_drop_subtree_thres = new_thres;  in qgroup_drop_subtree_thres_store()
2079 	spin_unlock(&fs_info->qgroup_lock);  in qgroup_drop_subtree_thres_store()
2120 	struct btrfs_fs_info *fs_info = qgroup_kobj_to_fs_info(qgroup_kobj);	\
2123 	return btrfs_show_u64(&qgroup->_member, &fs_info->qgroup_lock, buf);	\
2132 	struct btrfs_fs_info *fs_info = qgroup_kobj_to_fs_info(qgroup_kobj);	\
2136 			&fs_info->qgroup_lock, buf);				\
2180 int btrfs_sysfs_add_one_qgroup(struct btrfs_fs_info *fs_info,  in btrfs_sysfs_add_one_qgroup()  argument
2183 	struct kobject *qgroups_kobj = fs_info->qgroups_kobj;  in btrfs_sysfs_add_one_qgroup()
2186 	if (test_bit(BTRFS_FS_STATE_DUMMY_FS_INFO, &fs_info->fs_state))  in btrfs_sysfs_add_one_qgroup()
2202 void btrfs_sysfs_del_qgroups(struct btrfs_fs_info *fs_info)  in btrfs_sysfs_del_qgroups()  argument
2207 	if (test_bit(BTRFS_FS_STATE_DUMMY_FS_INFO, &fs_info->fs_state))  in btrfs_sysfs_del_qgroups()
2211 					     &fs_info->qgroup_tree, node)  in btrfs_sysfs_del_qgroups()
2212 		btrfs_sysfs_del_one_qgroup(fs_info, qgroup);  in btrfs_sysfs_del_qgroups()
2213 	if (fs_info->qgroups_kobj) {  in btrfs_sysfs_del_qgroups()
2214 		kobject_del(fs_info->qgroups_kobj);  in btrfs_sysfs_del_qgroups()
2215 		kobject_put(fs_info->qgroups_kobj);  in btrfs_sysfs_del_qgroups()
2216 		fs_info->qgroups_kobj = NULL;  in btrfs_sysfs_del_qgroups()
2221 int btrfs_sysfs_add_qgroups(struct btrfs_fs_info *fs_info)  in btrfs_sysfs_add_qgroups()  argument
2223 	struct kobject *fsid_kobj = &fs_info->fs_devices->fsid_kobj;  in btrfs_sysfs_add_qgroups()
2228 	if (test_bit(BTRFS_FS_STATE_DUMMY_FS_INFO, &fs_info->fs_state))  in btrfs_sysfs_add_qgroups()
2232 	if (fs_info->qgroups_kobj)  in btrfs_sysfs_add_qgroups()
2235 	fs_info->qgroups_kobj = kzalloc(sizeof(struct kobject), GFP_KERNEL);  in btrfs_sysfs_add_qgroups()
2236 	if (!fs_info->qgroups_kobj)  in btrfs_sysfs_add_qgroups()
2239 	ret = kobject_init_and_add(fs_info->qgroups_kobj, &qgroups_ktype,  in btrfs_sysfs_add_qgroups()
2245 					     &fs_info->qgroup_tree, node) {  in btrfs_sysfs_add_qgroups()
2246 		ret = btrfs_sysfs_add_one_qgroup(fs_info, qgroup);  in btrfs_sysfs_add_qgroups()
2253 		btrfs_sysfs_del_qgroups(fs_info);  in btrfs_sysfs_add_qgroups()
2257 void btrfs_sysfs_del_one_qgroup(struct btrfs_fs_info *fs_info,  in btrfs_sysfs_del_one_qgroup()  argument
2260 	if (test_bit(BTRFS_FS_STATE_DUMMY_FS_INFO, &fs_info->fs_state))  in btrfs_sysfs_del_one_qgroup()
2273 void btrfs_sysfs_feature_update(struct btrfs_fs_info *fs_info,  in btrfs_sysfs_feature_update()  argument
2281 	if (!fs_info)  in btrfs_sysfs_feature_update()
2288 	features = get_features(fs_info, set);  in btrfs_sysfs_feature_update()
2291 	fs_devs = fs_info->fs_devices;  in btrfs_sysfs_feature_update()