112 static u64 get_features(struct btrfs_fs_info *fs_info,  in get_features()  argument
115 	struct btrfs_super_block *disk_super = fs_info->super_copy;  in get_features()
124 static void set_features(struct btrfs_fs_info *fs_info,  in set_features()  argument
127 	struct btrfs_super_block *disk_super = fs_info->super_copy;  in set_features()
171 	struct btrfs_fs_info *fs_info = to_fs_info(kobj);  in btrfs_feature_attr_show()  local
173 	if (fs_info) {  in btrfs_feature_attr_show()
174 		u64 features = get_features(fs_info, fa->feature_set);  in btrfs_feature_attr_show()
187 	struct btrfs_fs_info *fs_info;  in btrfs_feature_attr_store()  local
193 	fs_info = to_fs_info(kobj);  in btrfs_feature_attr_store()
194 	if (!fs_info)  in btrfs_feature_attr_store()
197 	if (sb_rdonly(fs_info->sb))  in btrfs_feature_attr_store()
215 	features = get_features(fs_info, fa->feature_set);  in btrfs_feature_attr_store()
224 		btrfs_info(fs_info,  in btrfs_feature_attr_store()
230 	btrfs_info(fs_info, "%s %s feature flag",  in btrfs_feature_attr_store()
233 	spin_lock(&fs_info->super_lock);  in btrfs_feature_attr_store()
234 	features = get_features(fs_info, fa->feature_set);  in btrfs_feature_attr_store()
239 	set_features(fs_info, fa->feature_set, features);  in btrfs_feature_attr_store()
240 	spin_unlock(&fs_info->super_lock);  in btrfs_feature_attr_store()
245 	btrfs_set_pending(fs_info, COMMIT);  in btrfs_feature_attr_store()
246 	wake_up_process(fs_info->transaction_kthread);  in btrfs_feature_attr_store()
254 	struct btrfs_fs_info *fs_info = to_fs_info(kobj);  in btrfs_feature_visible()  local
257 	if (fs_info) {  in btrfs_feature_visible()
262 		features = get_features(fs_info, fa->feature_set);  in btrfs_feature_visible()
438 	struct btrfs_fs_info *fs_info = discard_to_fs_info(kobj);  in btrfs_discardable_bytes_show()  local
441 			atomic64_read(&fs_info->discard_ctl.discardable_bytes));  in btrfs_discardable_bytes_show()
449 	struct btrfs_fs_info *fs_info = discard_to_fs_info(kobj);  in btrfs_discardable_extents_show()  local
452 			atomic_read(&fs_info->discard_ctl.discardable_extents));  in btrfs_discardable_extents_show()
460 	struct btrfs_fs_info *fs_info = discard_to_fs_info(kobj);  in btrfs_discard_bitmap_bytes_show()  local
463 			fs_info->discard_ctl.discard_bitmap_bytes);  in btrfs_discard_bitmap_bytes_show()
471 	struct btrfs_fs_info *fs_info = discard_to_fs_info(kobj);  in btrfs_discard_bytes_saved_show()  local
474 		atomic64_read(&fs_info->discard_ctl.discard_bytes_saved));  in btrfs_discard_bytes_saved_show()
482 	struct btrfs_fs_info *fs_info = discard_to_fs_info(kobj);  in btrfs_discard_extent_bytes_show()  local
485 			fs_info->discard_ctl.discard_extent_bytes);  in btrfs_discard_extent_bytes_show()
493 	struct btrfs_fs_info *fs_info = discard_to_fs_info(kobj);  in btrfs_discard_iops_limit_show()  local
496 			READ_ONCE(fs_info->discard_ctl.iops_limit));  in btrfs_discard_iops_limit_show()
503 	struct btrfs_fs_info *fs_info = discard_to_fs_info(kobj);  in btrfs_discard_iops_limit_store()  local
504 	struct btrfs_discard_ctl *discard_ctl = &fs_info->discard_ctl;  in btrfs_discard_iops_limit_store()
524 	struct btrfs_fs_info *fs_info = discard_to_fs_info(kobj);  in btrfs_discard_kbps_limit_show()  local
527 			READ_ONCE(fs_info->discard_ctl.kbps_limit));  in btrfs_discard_kbps_limit_show()
534 	struct btrfs_fs_info *fs_info = discard_to_fs_info(kobj);  in btrfs_discard_kbps_limit_store()  local
535 	struct btrfs_discard_ctl *discard_ctl = &fs_info->discard_ctl;  in btrfs_discard_kbps_limit_store()
554 	struct btrfs_fs_info *fs_info = discard_to_fs_info(kobj);  in btrfs_discard_max_discard_size_show()  local
557 			READ_ONCE(fs_info->discard_ctl.max_discard_size));  in btrfs_discard_max_discard_size_show()
564 	struct btrfs_fs_info *fs_info = discard_to_fs_info(kobj);  in btrfs_discard_max_discard_size_store()  local
565 	struct btrfs_discard_ctl *discard_ctl = &fs_info->discard_ctl;  in btrfs_discard_max_discard_size_store()
636 	struct btrfs_fs_info *fs_info = to_fs_info(kobj->parent);  in global_rsv_size_show()  local
637 	struct btrfs_block_rsv *block_rsv = &fs_info->global_block_rsv;  in global_rsv_size_show()
645 	struct btrfs_fs_info *fs_info = to_fs_info(kobj->parent);  in global_rsv_reserved_show()  local
646 	struct btrfs_block_rsv *block_rsv = &fs_info->global_block_rsv;  in global_rsv_reserved_show()
769 	struct btrfs_fs_info *fs_info = to_fs_info(kobj);  in btrfs_label_show()  local
770 	char *label = fs_info->super_copy->label;  in btrfs_label_show()
773 	spin_lock(&fs_info->super_lock);  in btrfs_label_show()
775 	spin_unlock(&fs_info->super_lock);  in btrfs_label_show()
784 	struct btrfs_fs_info *fs_info = to_fs_info(kobj);  in btrfs_label_store()  local
787 	if (!fs_info)  in btrfs_label_store()
790 	if (sb_rdonly(fs_info->sb))  in btrfs_label_store()
802 	spin_lock(&fs_info->super_lock);  in btrfs_label_store()
803 	memset(fs_info->super_copy->label, 0, BTRFS_LABEL_SIZE);  in btrfs_label_store()
804 	memcpy(fs_info->super_copy->label, buf, p_len);  in btrfs_label_store()
805 	spin_unlock(&fs_info->super_lock);  in btrfs_label_store()
810 	btrfs_set_pending(fs_info, COMMIT);  in btrfs_label_store()
811 	wake_up_process(fs_info->transaction_kthread);  in btrfs_label_store()
820 	struct btrfs_fs_info *fs_info = to_fs_info(kobj);  in btrfs_nodesize_show()  local
822 	return scnprintf(buf, PAGE_SIZE, "%u\n", fs_info->super_copy->nodesize);  in btrfs_nodesize_show()
830 	struct btrfs_fs_info *fs_info = to_fs_info(kobj);  in btrfs_sectorsize_show()  local
833 			 fs_info->super_copy->sectorsize);  in btrfs_sectorsize_show()
841 	struct btrfs_fs_info *fs_info = to_fs_info(kobj);  in btrfs_clone_alignment_show()  local
843 	return scnprintf(buf, PAGE_SIZE, "%u\n", fs_info->super_copy->sectorsize);  in btrfs_clone_alignment_show()
851 	struct btrfs_fs_info *fs_info = to_fs_info(kobj);  in quota_override_show()  local
854 	quota_override = test_bit(BTRFS_FS_QUOTA_OVERRIDE, &fs_info->flags);  in quota_override_show()
862 	struct btrfs_fs_info *fs_info = to_fs_info(kobj);  in quota_override_store()  local
866 	if (!fs_info)  in quota_override_store()
879 		set_bit(BTRFS_FS_QUOTA_OVERRIDE, &fs_info->flags);  in quota_override_store()
881 		clear_bit(BTRFS_FS_QUOTA_OVERRIDE, &fs_info->flags);  in quota_override_store()
891 	struct btrfs_fs_info *fs_info = to_fs_info(kobj);  in btrfs_metadata_uuid_show()  local
894 			fs_info->fs_devices->metadata_uuid);  in btrfs_metadata_uuid_show()
902 	struct btrfs_fs_info *fs_info = to_fs_info(kobj);  in btrfs_checksum_show()  local
903 	u16 csum_type = btrfs_super_csum_type(fs_info->super_copy);  in btrfs_checksum_show()
907 			crypto_shash_driver_name(fs_info->csum_shash));  in btrfs_checksum_show()
915 	struct btrfs_fs_info *fs_info = to_fs_info(kobj);  in btrfs_exclusive_operation_show()  local
918 	switch (READ_ONCE(fs_info->exclusive_operation)) {  in btrfs_exclusive_operation_show()
951 	struct btrfs_fs_info *fs_info = to_fs_info(kobj);  in btrfs_generation_show()  local
953 	return scnprintf(buf, PAGE_SIZE, "%llu\n", fs_info->generation);  in btrfs_generation_show()
1012 				btrfs_info(fs_devices->fs_info,  in btrfs_read_policy_store()
1028 	struct btrfs_fs_info *fs_info = to_fs_info(kobj);  in btrfs_bg_reclaim_threshold_show()  local
1032 			READ_ONCE(fs_info->bg_reclaim_threshold));  in btrfs_bg_reclaim_threshold_show()
1041 	struct btrfs_fs_info *fs_info = to_fs_info(kobj);  in btrfs_bg_reclaim_threshold_store()  local
1052 	WRITE_ONCE(fs_info->bg_reclaim_threshold, thresh);  in btrfs_bg_reclaim_threshold_store()
1103 	return to_fs_devs(kobj)->fs_info;  in to_fs_info()
1117 static int addrm_unknown_feature_attrs(struct btrfs_fs_info *fs_info, bool add)  in addrm_unknown_feature_attrs()  argument
1128 		u64 features = get_features(fs_info, set);  in addrm_unknown_feature_attrs()
1145 				ret = sysfs_merge_group(&fs_info->fs_devices->fsid_kobj,  in addrm_unknown_feature_attrs()
1150 				sysfs_unmerge_group(&fs_info->fs_devices->fsid_kobj,  in addrm_unknown_feature_attrs()
1208 void btrfs_sysfs_remove_mounted(struct btrfs_fs_info *fs_info)  in btrfs_sysfs_remove_mounted()  argument
1210 	struct kobject *fsid_kobj = &fs_info->fs_devices->fsid_kobj;  in btrfs_sysfs_remove_mounted()
1214 	if (fs_info->space_info_kobj) {  in btrfs_sysfs_remove_mounted()
1215 		sysfs_remove_files(fs_info->space_info_kobj, allocation_attrs);  in btrfs_sysfs_remove_mounted()
1216 		kobject_del(fs_info->space_info_kobj);  in btrfs_sysfs_remove_mounted()
1217 		kobject_put(fs_info->space_info_kobj);  in btrfs_sysfs_remove_mounted()
1220 	if (fs_info->discard_debug_kobj) {  in btrfs_sysfs_remove_mounted()
1221 		sysfs_remove_files(fs_info->discard_debug_kobj,  in btrfs_sysfs_remove_mounted()
1223 		kobject_del(fs_info->discard_debug_kobj);  in btrfs_sysfs_remove_mounted()
1224 		kobject_put(fs_info->discard_debug_kobj);  in btrfs_sysfs_remove_mounted()
1226 	if (fs_info->debug_kobj) {  in btrfs_sysfs_remove_mounted()
1227 		sysfs_remove_files(fs_info->debug_kobj, btrfs_debug_mount_attrs);  in btrfs_sysfs_remove_mounted()
1228 		kobject_del(fs_info->debug_kobj);  in btrfs_sysfs_remove_mounted()
1229 		kobject_put(fs_info->debug_kobj);  in btrfs_sysfs_remove_mounted()
1232 	addrm_unknown_feature_attrs(fs_info, false);  in btrfs_sysfs_remove_mounted()
1235 	btrfs_sysfs_remove_fs_devices(fs_info->fs_devices);  in btrfs_sysfs_remove_mounted()
1324 	struct btrfs_fs_info *fs_info = cache->fs_info;  in btrfs_sysfs_add_block_group_type()  local
1343 		btrfs_warn(cache->fs_info,  in btrfs_sysfs_add_block_group_type()
1378 		btrfs_warn(fs_info,  in btrfs_sysfs_add_block_group_type()
1427 int btrfs_sysfs_add_space_info_type(struct btrfs_fs_info *fs_info,  in btrfs_sysfs_add_space_info_type()  argument
1433 				   fs_info->space_info_kobj, "%s",  in btrfs_sysfs_add_space_info_type()
1451 	devices_kobj = device->fs_info->fs_devices->devices_kobj;  in btrfs_sysfs_remove_device()
1615 	devices_kobj = device->fs_info->fs_devices->devices_kobj;  in btrfs_sysfs_add_device()
1616 	devinfo_kobj = device->fs_info->fs_devices->devinfo_kobj;  in btrfs_sysfs_add_device()
1627 			btrfs_warn(device->fs_info,  in btrfs_sysfs_add_device()
1639 		btrfs_warn(device->fs_info,  in btrfs_sysfs_add_device()
1698 		btrfs_warn(fs_devices->fs_info,  in btrfs_sysfs_update_sprout_fsid()
1709 		btrfs_warn(device->fs_devices->fs_info,  in btrfs_sysfs_update_devid()
1739 		btrfs_err(fs_devs->fs_info,  in btrfs_sysfs_add_fsid()
1748 		btrfs_err(fs_devs->fs_info,  in btrfs_sysfs_add_fsid()
1757 int btrfs_sysfs_add_mounted(struct btrfs_fs_info *fs_info)  in btrfs_sysfs_add_mounted()  argument
1760 	struct btrfs_fs_devices *fs_devs = fs_info->fs_devices;  in btrfs_sysfs_add_mounted()
1779 	fs_info->debug_kobj = kobject_create_and_add("debug", fsid_kobj);  in btrfs_sysfs_add_mounted()
1780 	if (!fs_info->debug_kobj) {  in btrfs_sysfs_add_mounted()
1785 	error = sysfs_create_files(fs_info->debug_kobj, btrfs_debug_mount_attrs);  in btrfs_sysfs_add_mounted()
1790 	fs_info->discard_debug_kobj = kobject_create_and_add("discard",  in btrfs_sysfs_add_mounted()
1791 						     fs_info->debug_kobj);  in btrfs_sysfs_add_mounted()
1792 	if (!fs_info->discard_debug_kobj) {  in btrfs_sysfs_add_mounted()
1797 	error = sysfs_create_files(fs_info->discard_debug_kobj,  in btrfs_sysfs_add_mounted()
1803 	error = addrm_unknown_feature_attrs(fs_info, true);  in btrfs_sysfs_add_mounted()
1807 	error = sysfs_create_link(fsid_kobj, &fs_info->sb->s_bdi->dev->kobj, "bdi");  in btrfs_sysfs_add_mounted()
1811 	fs_info->space_info_kobj = kobject_create_and_add("allocation",  in btrfs_sysfs_add_mounted()
1813 	if (!fs_info->space_info_kobj) {  in btrfs_sysfs_add_mounted()
1818 	error = sysfs_create_files(fs_info->space_info_kobj, allocation_attrs);  in btrfs_sysfs_add_mounted()
1824 	btrfs_sysfs_remove_mounted(fs_info);  in btrfs_sysfs_add_mounted()
1838 	struct btrfs_fs_info *fs_info = qgroup_kobj_to_fs_info(qgroup_kobj);	\
1841 	return btrfs_show_u64(&qgroup->_member, &fs_info->qgroup_lock, buf);	\
1850 	struct btrfs_fs_info *fs_info = qgroup_kobj_to_fs_info(qgroup_kobj);	\
1854 			&fs_info->qgroup_lock, buf);				\
1898 int btrfs_sysfs_add_one_qgroup(struct btrfs_fs_info *fs_info,  in btrfs_sysfs_add_one_qgroup()  argument
1901 	struct kobject *qgroups_kobj = fs_info->qgroups_kobj;  in btrfs_sysfs_add_one_qgroup()
1904 	if (test_bit(BTRFS_FS_STATE_DUMMY_FS_INFO, &fs_info->fs_state))  in btrfs_sysfs_add_one_qgroup()
1920 void btrfs_sysfs_del_qgroups(struct btrfs_fs_info *fs_info)  in btrfs_sysfs_del_qgroups()  argument
1925 	if (test_bit(BTRFS_FS_STATE_DUMMY_FS_INFO, &fs_info->fs_state))  in btrfs_sysfs_del_qgroups()
1929 					     &fs_info->qgroup_tree, node)  in btrfs_sysfs_del_qgroups()
1930 		btrfs_sysfs_del_one_qgroup(fs_info, qgroup);  in btrfs_sysfs_del_qgroups()
1931 	if (fs_info->qgroups_kobj) {  in btrfs_sysfs_del_qgroups()
1932 		kobject_del(fs_info->qgroups_kobj);  in btrfs_sysfs_del_qgroups()
1933 		kobject_put(fs_info->qgroups_kobj);  in btrfs_sysfs_del_qgroups()
1934 		fs_info->qgroups_kobj = NULL;  in btrfs_sysfs_del_qgroups()
1939 int btrfs_sysfs_add_qgroups(struct btrfs_fs_info *fs_info)  in btrfs_sysfs_add_qgroups()  argument
1941 	struct kobject *fsid_kobj = &fs_info->fs_devices->fsid_kobj;  in btrfs_sysfs_add_qgroups()
1946 	if (test_bit(BTRFS_FS_STATE_DUMMY_FS_INFO, &fs_info->fs_state))  in btrfs_sysfs_add_qgroups()
1950 	if (fs_info->qgroups_kobj)  in btrfs_sysfs_add_qgroups()
1953 	fs_info->qgroups_kobj = kobject_create_and_add("qgroups", fsid_kobj);  in btrfs_sysfs_add_qgroups()
1954 	if (!fs_info->qgroups_kobj) {  in btrfs_sysfs_add_qgroups()
1959 					     &fs_info->qgroup_tree, node) {  in btrfs_sysfs_add_qgroups()
1960 		ret = btrfs_sysfs_add_one_qgroup(fs_info, qgroup);  in btrfs_sysfs_add_qgroups()
1967 		btrfs_sysfs_del_qgroups(fs_info);  in btrfs_sysfs_add_qgroups()
1971 void btrfs_sysfs_del_one_qgroup(struct btrfs_fs_info *fs_info,  in btrfs_sysfs_del_one_qgroup()  argument
1974 	if (test_bit(BTRFS_FS_STATE_DUMMY_FS_INFO, &fs_info->fs_state))  in btrfs_sysfs_del_one_qgroup()
1987 void btrfs_sysfs_feature_update(struct btrfs_fs_info *fs_info,  in btrfs_sysfs_feature_update()  argument
1995 	if (!fs_info)  in btrfs_sysfs_feature_update()
2002 	features = get_features(fs_info, set);  in btrfs_sysfs_feature_update()
2005 	fs_devs = fs_info->fs_devices;  in btrfs_sysfs_feature_update()