58 	struct ubi_volume *vol = container_of(dev, struct ubi_volume, dev);  in vol_attribute_show()  local
61 	ubi = ubi_get_device(vol->ubi->ubi_num);  in vol_attribute_show()
66 	if (!ubi->volumes[vol->vol_id]) {  in vol_attribute_show()
72 	vol->ref_count += 1;  in vol_attribute_show()
76 		ret = sprintf(buf, "%d\n", vol->reserved_pebs);  in vol_attribute_show()
80 		if (vol->vol_type == UBI_DYNAMIC_VOLUME)  in vol_attribute_show()
86 		ret = sprintf(buf, "%s\n", vol->name);  in vol_attribute_show()
88 		ret = sprintf(buf, "%d\n", vol->corrupted);  in vol_attribute_show()
90 		ret = sprintf(buf, "%d\n", vol->alignment);  in vol_attribute_show()
92 		ret = sprintf(buf, "%d\n", vol->usable_leb_size);  in vol_attribute_show()
94 		ret = sprintf(buf, "%lld\n", vol->used_bytes);  in vol_attribute_show()
96 		ret = sprintf(buf, "%d\n", vol->upd_marker);  in vol_attribute_show()
103 	vol->ref_count -= 1;  in vol_attribute_show()
104 	ubi_assert(vol->ref_count >= 0);  in vol_attribute_show()
126 	struct ubi_volume *vol = container_of(dev, struct ubi_volume, dev);  in vol_release()  local
128 	ubi_eba_replace_table(vol, NULL);  in vol_release()
129 	ubi_fastmap_destroy_checkmap(vol);  in vol_release()
130 	kfree(vol);  in vol_release()
147 	struct ubi_volume *vol;  in ubi_create_volume()  local
154 	vol = kzalloc(sizeof(struct ubi_volume), GFP_KERNEL);  in ubi_create_volume()
155 	if (!vol)  in ubi_create_volume()
158 	device_initialize(&vol->dev);  in ubi_create_volume()
159 	vol->dev.release = vol_release;  in ubi_create_volume()
160 	vol->dev.parent = &ubi->dev;  in ubi_create_volume()
161 	vol->dev.class = &ubi_class;  in ubi_create_volume()
162 	vol->dev.groups = volume_dev_groups;  in ubi_create_volume()
165 		vol->skip_check = 1;  in ubi_create_volume()
207 	vol->usable_leb_size = ubi->leb_size - ubi->leb_size % req->alignment;  in ubi_create_volume()
208 	vol->reserved_pebs = div_u64(req->bytes + vol->usable_leb_size - 1,  in ubi_create_volume()
209 				     vol->usable_leb_size);  in ubi_create_volume()
212 	if (vol->reserved_pebs > ubi->avail_pebs) {  in ubi_create_volume()
221 	ubi->avail_pebs -= vol->reserved_pebs;  in ubi_create_volume()
222 	ubi->rsvd_pebs += vol->reserved_pebs;  in ubi_create_volume()
225 	vol->vol_id    = vol_id;  in ubi_create_volume()
226 	vol->alignment = req->alignment;  in ubi_create_volume()
227 	vol->data_pad  = ubi->leb_size % vol->alignment;  in ubi_create_volume()
228 	vol->vol_type  = req->vol_type;  in ubi_create_volume()
229 	vol->name_len  = req->name_len;  in ubi_create_volume()
230 	memcpy(vol->name, req->name, vol->name_len);  in ubi_create_volume()
231 	vol->ubi = ubi;  in ubi_create_volume()
241 	eba_tbl = ubi_eba_create_table(vol, vol->reserved_pebs);  in ubi_create_volume()
247 	ubi_eba_replace_table(vol, eba_tbl);  in ubi_create_volume()
249 	if (vol->vol_type == UBI_DYNAMIC_VOLUME) {  in ubi_create_volume()
250 		vol->used_ebs = vol->reserved_pebs;  in ubi_create_volume()
251 		vol->last_eb_bytes = vol->usable_leb_size;  in ubi_create_volume()
252 		vol->used_bytes =  in ubi_create_volume()
253 			(long long)vol->used_ebs * vol->usable_leb_size;  in ubi_create_volume()
255 		vol->used_ebs = div_u64_rem(vol->used_bytes,  in ubi_create_volume()
256 					    vol->usable_leb_size,  in ubi_create_volume()
257 					    &vol->last_eb_bytes);  in ubi_create_volume()
258 		if (vol->last_eb_bytes != 0)  in ubi_create_volume()
259 			vol->used_ebs += 1;  in ubi_create_volume()
261 			vol->last_eb_bytes = vol->usable_leb_size;  in ubi_create_volume()
266 	ubi->volumes[vol_id] = vol;  in ubi_create_volume()
271 	cdev_init(&vol->cdev, &ubi_vol_cdev_operations);  in ubi_create_volume()
272 	vol->cdev.owner = THIS_MODULE;  in ubi_create_volume()
274 	vol->dev.devt = MKDEV(MAJOR(ubi->cdev.dev), vol_id + 1);  in ubi_create_volume()
275 	dev_set_name(&vol->dev, "%s_%d", ubi->ubi_name, vol->vol_id);  in ubi_create_volume()
276 	err = cdev_device_add(&vol->cdev, &vol->dev);  in ubi_create_volume()
284 	vtbl_rec.reserved_pebs = cpu_to_be32(vol->reserved_pebs);  in ubi_create_volume()
285 	vtbl_rec.alignment     = cpu_to_be32(vol->alignment);  in ubi_create_volume()
286 	vtbl_rec.data_pad      = cpu_to_be32(vol->data_pad);  in ubi_create_volume()
287 	vtbl_rec.name_len      = cpu_to_be16(vol->name_len);  in ubi_create_volume()
288 	if (vol->vol_type == UBI_DYNAMIC_VOLUME)  in ubi_create_volume()
293 	if (vol->skip_check)  in ubi_create_volume()
296 	memcpy(vtbl_rec.name, vol->name, vol->name_len);  in ubi_create_volume()
302 	ubi_volume_notify(ubi, vol, UBI_VOLUME_ADDED);  in ubi_create_volume()
312 	cdev_device_del(&vol->cdev, &vol->dev);  in ubi_create_volume()
321 	ubi->rsvd_pebs -= vol->reserved_pebs;  in ubi_create_volume()
322 	ubi->avail_pebs += vol->reserved_pebs;  in ubi_create_volume()
325 	put_device(&vol->dev);  in ubi_create_volume()
342 	struct ubi_volume *vol = desc->vol;  in ubi_remove_volume()  local
343 	struct ubi_device *ubi = vol->ubi;  in ubi_remove_volume()
344 	int i, err, vol_id = vol->vol_id, reserved_pebs = vol->reserved_pebs;  in ubi_remove_volume()
348 	ubi_assert(vol == ubi->volumes[vol_id]);  in ubi_remove_volume()
354 	if (vol->ref_count > 1) {  in ubi_remove_volume()
371 	for (i = 0; i < vol->reserved_pebs; i++) {  in ubi_remove_volume()
372 		err = ubi_eba_unmap_leb(ubi, vol, i);  in ubi_remove_volume()
377 	cdev_device_del(&vol->cdev, &vol->dev);  in ubi_remove_volume()
378 	put_device(&vol->dev);  in ubi_remove_volume()
387 	ubi_volume_notify(ubi, vol, UBI_VOLUME_REMOVED);  in ubi_remove_volume()
396 	ubi->volumes[vol_id] = vol;  in ubi_remove_volume()
414 	struct ubi_volume *vol = desc->vol;  in ubi_resize_volume()  local
415 	struct ubi_device *ubi = vol->ubi;  in ubi_resize_volume()
418 	int vol_id = vol->vol_id;  in ubi_resize_volume()
424 		ubi->ubi_num, vol_id, vol->reserved_pebs, reserved_pebs);  in ubi_resize_volume()
426 	if (vol->vol_type == UBI_STATIC_VOLUME &&  in ubi_resize_volume()
427 	    reserved_pebs < vol->used_ebs) {  in ubi_resize_volume()
429 			reserved_pebs, vol->used_ebs);  in ubi_resize_volume()
434 	if (reserved_pebs == vol->reserved_pebs)  in ubi_resize_volume()
437 	new_eba_tbl = ubi_eba_create_table(vol, reserved_pebs);  in ubi_resize_volume()
442 	if (vol->ref_count > 1) {  in ubi_resize_volume()
450 	pebs = reserved_pebs - vol->reserved_pebs;  in ubi_resize_volume()
465 		ubi_eba_copy_table(vol, new_eba_tbl, vol->reserved_pebs);  in ubi_resize_volume()
466 		ubi_eba_replace_table(vol, new_eba_tbl);  in ubi_resize_volume()
472 			err = ubi_eba_unmap_leb(ubi, vol, reserved_pebs + i);  in ubi_resize_volume()
480 		ubi_eba_copy_table(vol, new_eba_tbl, reserved_pebs);  in ubi_resize_volume()
481 		ubi_eba_replace_table(vol, new_eba_tbl);  in ubi_resize_volume()
503 	vol->reserved_pebs = reserved_pebs;  in ubi_resize_volume()
504 	if (vol->vol_type == UBI_DYNAMIC_VOLUME) {  in ubi_resize_volume()
505 		vol->used_ebs = reserved_pebs;  in ubi_resize_volume()
506 		vol->last_eb_bytes = vol->usable_leb_size;  in ubi_resize_volume()
507 		vol->used_bytes =  in ubi_resize_volume()
508 			(long long)vol->used_ebs * vol->usable_leb_size;  in ubi_resize_volume()
511 	ubi_volume_notify(ubi, vol, UBI_VOLUME_RESIZED);  in ubi_resize_volume()
551 			struct ubi_volume *vol = re->desc->vol;  in ubi_rename_volumes()  local
554 			vol->name_len = re->new_name_len;  in ubi_rename_volumes()
555 			memcpy(vol->name, re->new_name, re->new_name_len + 1);  in ubi_rename_volumes()
557 			ubi_volume_notify(ubi, vol, UBI_VOLUME_RENAMED);  in ubi_rename_volumes()
575 int ubi_add_volume(struct ubi_device *ubi, struct ubi_volume *vol)  in ubi_add_volume()  argument
577 	int err, vol_id = vol->vol_id;  in ubi_add_volume()
583 	cdev_init(&vol->cdev, &ubi_vol_cdev_operations);  in ubi_add_volume()
584 	vol->cdev.owner = THIS_MODULE;  in ubi_add_volume()
585 	dev = MKDEV(MAJOR(ubi->cdev.dev), vol->vol_id + 1);  in ubi_add_volume()
586 	err = cdev_add(&vol->cdev, dev, 1);  in ubi_add_volume()
593 	vol->dev.release = vol_release;  in ubi_add_volume()
594 	vol->dev.parent = &ubi->dev;  in ubi_add_volume()
595 	vol->dev.devt = dev;  in ubi_add_volume()
596 	vol->dev.class = &ubi_class;  in ubi_add_volume()
597 	vol->dev.groups = volume_dev_groups;  in ubi_add_volume()
598 	dev_set_name(&vol->dev, "%s_%d", ubi->ubi_name, vol->vol_id);  in ubi_add_volume()
599 	err = device_register(&vol->dev);  in ubi_add_volume()
607 	cdev_del(&vol->cdev);  in ubi_add_volume()
619 void ubi_free_volume(struct ubi_device *ubi, struct ubi_volume *vol)  in ubi_free_volume()  argument
621 	dbg_gen("free volume %d", vol->vol_id);  in ubi_free_volume()
623 	ubi->volumes[vol->vol_id] = NULL;  in ubi_free_volume()
624 	cdev_del(&vol->cdev);  in ubi_free_volume()
625 	device_unregister(&vol->dev);  in ubi_free_volume()
639 	const struct ubi_volume *vol;  in self_check_volume()  local
645 	vol = ubi->volumes[idx];  in self_check_volume()
647 	if (!vol) {  in self_check_volume()
656 	if (vol->reserved_pebs < 0 || vol->alignment < 0 || vol->data_pad < 0 ||  in self_check_volume()
657 	    vol->name_len < 0) {  in self_check_volume()
661 	if (vol->alignment > ubi->leb_size || vol->alignment == 0) {  in self_check_volume()
666 	n = vol->alignment & (ubi->min_io_size - 1);  in self_check_volume()
667 	if (vol->alignment != 1 && n) {  in self_check_volume()
672 	n = ubi->leb_size % vol->alignment;  in self_check_volume()
673 	if (vol->data_pad != n) {  in self_check_volume()
678 	if (vol->vol_type != UBI_DYNAMIC_VOLUME &&  in self_check_volume()
679 	    vol->vol_type != UBI_STATIC_VOLUME) {  in self_check_volume()
684 	if (vol->upd_marker && vol->corrupted) {  in self_check_volume()
689 	if (vol->reserved_pebs > ubi->good_peb_count) {  in self_check_volume()
694 	n = ubi->leb_size - vol->data_pad;  in self_check_volume()
695 	if (vol->usable_leb_size != ubi->leb_size - vol->data_pad) {  in self_check_volume()
700 	if (vol->name_len > UBI_VOL_NAME_MAX) {  in self_check_volume()
706 	n = strnlen(vol->name, vol->name_len + 1);  in self_check_volume()
707 	if (n != vol->name_len) {  in self_check_volume()
712 	n = (long long)vol->used_ebs * vol->usable_leb_size;  in self_check_volume()
713 	if (vol->vol_type == UBI_DYNAMIC_VOLUME) {  in self_check_volume()
714 		if (vol->corrupted) {  in self_check_volume()
718 		if (vol->used_ebs != vol->reserved_pebs) {  in self_check_volume()
722 		if (vol->last_eb_bytes != vol->usable_leb_size) {  in self_check_volume()
726 		if (vol->used_bytes != n) {  in self_check_volume()
731 		if (vol->skip_check) {  in self_check_volume()
736 		if (vol->used_ebs < 0 || vol->used_ebs > vol->reserved_pebs) {  in self_check_volume()
740 		if (vol->last_eb_bytes < 0 ||  in self_check_volume()
741 		    vol->last_eb_bytes > vol->usable_leb_size) {  in self_check_volume()
745 		if (vol->used_bytes < 0 || vol->used_bytes > n ||  in self_check_volume()
746 		    vol->used_bytes < n - vol->usable_leb_size) {  in self_check_volume()
762 	if (alignment != vol->alignment || data_pad != vol->data_pad ||  in self_check_volume()
763 	    upd_marker != vol->upd_marker || vol_type != vol->vol_type ||  in self_check_volume()
764 	    name_len != vol->name_len || strncmp(name, vol->name, name_len)) {  in self_check_volume()
774 	if (vol)  in self_check_volume()
775 		ubi_dump_vol_info(vol);  in self_check_volume()