23 static u64 get_features(struct btrfs_fs_info *fs_info,  in get_features()  argument
26 	struct btrfs_super_block *disk_super = fs_info->super_copy;  in get_features()
35 static void set_features(struct btrfs_fs_info *fs_info,  in set_features()  argument
38 	struct btrfs_super_block *disk_super = fs_info->super_copy;  in set_features()
82 	struct btrfs_fs_info *fs_info = to_fs_info(kobj);  in btrfs_feature_attr_show()  local
84 	if (fs_info) {  in btrfs_feature_attr_show()
85 		u64 features = get_features(fs_info, fa->feature_set);  in btrfs_feature_attr_show()
98 	struct btrfs_fs_info *fs_info;  in btrfs_feature_attr_store()  local
104 	fs_info = to_fs_info(kobj);  in btrfs_feature_attr_store()
105 	if (!fs_info)  in btrfs_feature_attr_store()
108 	if (sb_rdonly(fs_info->sb))  in btrfs_feature_attr_store()
126 	features = get_features(fs_info, fa->feature_set);  in btrfs_feature_attr_store()
135 		btrfs_info(fs_info,  in btrfs_feature_attr_store()
141 	btrfs_info(fs_info, "%s %s feature flag",  in btrfs_feature_attr_store()
144 	spin_lock(&fs_info->super_lock);  in btrfs_feature_attr_store()
145 	features = get_features(fs_info, fa->feature_set);  in btrfs_feature_attr_store()
150 	set_features(fs_info, fa->feature_set, features);  in btrfs_feature_attr_store()
151 	spin_unlock(&fs_info->super_lock);  in btrfs_feature_attr_store()
156 	btrfs_set_pending(fs_info, COMMIT);  in btrfs_feature_attr_store()
157 	wake_up_process(fs_info->transaction_kthread);  in btrfs_feature_attr_store()
165 	struct btrfs_fs_info *fs_info = to_fs_info(kobj);  in btrfs_feature_visible()  local
168 	if (fs_info) {  in btrfs_feature_visible()
173 		features = get_features(fs_info, fa->feature_set);  in btrfs_feature_visible()
261 	struct btrfs_fs_info *fs_info = to_fs_info(kobj->parent);  in global_rsv_size_show()  local
262 	struct btrfs_block_rsv *block_rsv = &fs_info->global_block_rsv;  in global_rsv_size_show()
270 	struct btrfs_fs_info *fs_info = to_fs_info(kobj->parent);  in global_rsv_reserved_show()  local
271 	struct btrfs_block_rsv *block_rsv = &fs_info->global_block_rsv;  in global_rsv_reserved_show()
388 	struct btrfs_fs_info *fs_info = to_fs_info(kobj);  in btrfs_label_show()  local
389 	char *label = fs_info->super_copy->label;  in btrfs_label_show()
392 	spin_lock(&fs_info->super_lock);  in btrfs_label_show()
394 	spin_unlock(&fs_info->super_lock);  in btrfs_label_show()
403 	struct btrfs_fs_info *fs_info = to_fs_info(kobj);  in btrfs_label_store()  local
406 	if (!fs_info)  in btrfs_label_store()
409 	if (sb_rdonly(fs_info->sb))  in btrfs_label_store()
421 	spin_lock(&fs_info->super_lock);  in btrfs_label_store()
422 	memset(fs_info->super_copy->label, 0, BTRFS_LABEL_SIZE);  in btrfs_label_store()
423 	memcpy(fs_info->super_copy->label, buf, p_len);  in btrfs_label_store()
424 	spin_unlock(&fs_info->super_lock);  in btrfs_label_store()
429 	btrfs_set_pending(fs_info, COMMIT);  in btrfs_label_store()
430 	wake_up_process(fs_info->transaction_kthread);  in btrfs_label_store()
439 	struct btrfs_fs_info *fs_info = to_fs_info(kobj);  in btrfs_nodesize_show()  local
441 	return snprintf(buf, PAGE_SIZE, "%u\n", fs_info->super_copy->nodesize);  in btrfs_nodesize_show()
449 	struct btrfs_fs_info *fs_info = to_fs_info(kobj);  in btrfs_sectorsize_show()  local
452 			fs_info->super_copy->sectorsize);  in btrfs_sectorsize_show()
460 	struct btrfs_fs_info *fs_info = to_fs_info(kobj);  in btrfs_clone_alignment_show()  local
463 			fs_info->super_copy->sectorsize);  in btrfs_clone_alignment_show()
471 	struct btrfs_fs_info *fs_info = to_fs_info(kobj);  in quota_override_show()  local
474 	quota_override = test_bit(BTRFS_FS_QUOTA_OVERRIDE, &fs_info->flags);  in quota_override_show()
482 	struct btrfs_fs_info *fs_info = to_fs_info(kobj);  in quota_override_store()  local
486 	if (!fs_info)  in quota_override_store()
499 		set_bit(BTRFS_FS_QUOTA_OVERRIDE, &fs_info->flags);  in quota_override_store()
501 		clear_bit(BTRFS_FS_QUOTA_OVERRIDE, &fs_info->flags);  in quota_override_store()
541 	return to_fs_devs(kobj)->fs_info;  in to_fs_info()
555 static int addrm_unknown_feature_attrs(struct btrfs_fs_info *fs_info, bool add)  in addrm_unknown_feature_attrs()  argument
566 		u64 features = get_features(fs_info, set);  in addrm_unknown_feature_attrs()
583 				ret = sysfs_merge_group(&fs_info->fs_devices->fsid_kobj,  in addrm_unknown_feature_attrs()
588 				sysfs_unmerge_group(&fs_info->fs_devices->fsid_kobj,  in addrm_unknown_feature_attrs()
626 void btrfs_sysfs_remove_mounted(struct btrfs_fs_info *fs_info)  in btrfs_sysfs_remove_mounted()  argument
628 	btrfs_reset_fs_info_ptr(fs_info);  in btrfs_sysfs_remove_mounted()
630 	if (fs_info->space_info_kobj) {  in btrfs_sysfs_remove_mounted()
631 		sysfs_remove_files(fs_info->space_info_kobj, allocation_attrs);  in btrfs_sysfs_remove_mounted()
632 		kobject_del(fs_info->space_info_kobj);  in btrfs_sysfs_remove_mounted()
633 		kobject_put(fs_info->space_info_kobj);  in btrfs_sysfs_remove_mounted()
635 	addrm_unknown_feature_attrs(fs_info, false);  in btrfs_sysfs_remove_mounted()
636 	sysfs_remove_group(&fs_info->fs_devices->fsid_kobj, &btrfs_feature_attr_group);  in btrfs_sysfs_remove_mounted()
637 	sysfs_remove_files(&fs_info->fs_devices->fsid_kobj, btrfs_attrs);  in btrfs_sysfs_remove_mounted()
638 	btrfs_sysfs_rm_device_link(fs_info->fs_devices, NULL);  in btrfs_sysfs_remove_mounted()
817 int btrfs_sysfs_add_mounted(struct btrfs_fs_info *fs_info)  in btrfs_sysfs_add_mounted()  argument
820 	struct btrfs_fs_devices *fs_devs = fs_info->fs_devices;  in btrfs_sysfs_add_mounted()
823 	btrfs_set_fs_info_ptr(fs_info);  in btrfs_sysfs_add_mounted()
840 	error = addrm_unknown_feature_attrs(fs_info, true);  in btrfs_sysfs_add_mounted()
844 	fs_info->space_info_kobj = kobject_create_and_add("allocation",  in btrfs_sysfs_add_mounted()
846 	if (!fs_info->space_info_kobj) {  in btrfs_sysfs_add_mounted()
851 	error = sysfs_create_files(fs_info->space_info_kobj, allocation_attrs);  in btrfs_sysfs_add_mounted()
857 	btrfs_sysfs_remove_mounted(fs_info);  in btrfs_sysfs_add_mounted()
866 void btrfs_sysfs_feature_update(struct btrfs_fs_info *fs_info,  in btrfs_sysfs_feature_update()  argument
874 	if (!fs_info)  in btrfs_sysfs_feature_update()
877 	features = get_features(fs_info, set);  in btrfs_sysfs_feature_update()
880 	fs_devs = fs_info->fs_devices;  in btrfs_sysfs_feature_update()