71 	struct ubi_volume *vol = container_of(dev, struct ubi_volume, dev);  in vol_attribute_show()  local
74 	ubi = ubi_get_device(vol->ubi->ubi_num);  in vol_attribute_show()
79 	if (!ubi->volumes[vol->vol_id]) {  in vol_attribute_show()
85 	vol->ref_count += 1;  in vol_attribute_show()
89 		ret = sprintf(buf, "%d\n", vol->reserved_pebs);  in vol_attribute_show()
93 		if (vol->vol_type == UBI_DYNAMIC_VOLUME)  in vol_attribute_show()
99 		ret = sprintf(buf, "%s\n", vol->name);  in vol_attribute_show()
101 		ret = sprintf(buf, "%d\n", vol->corrupted);  in vol_attribute_show()
103 		ret = sprintf(buf, "%d\n", vol->alignment);  in vol_attribute_show()
105 		ret = sprintf(buf, "%d\n", vol->usable_leb_size);  in vol_attribute_show()
107 		ret = sprintf(buf, "%lld\n", vol->used_bytes);  in vol_attribute_show()
109 		ret = sprintf(buf, "%d\n", vol->upd_marker);  in vol_attribute_show()
116 	vol->ref_count -= 1;  in vol_attribute_show()
117 	ubi_assert(vol->ref_count >= 0);  in vol_attribute_show()
139 	struct ubi_volume *vol = container_of(dev, struct ubi_volume, dev);  in vol_release()  local
141 	ubi_eba_replace_table(vol, NULL);  in vol_release()
142 	ubi_fastmap_destroy_checkmap(vol);  in vol_release()
143 	kfree(vol);  in vol_release()
160 	struct ubi_volume *vol;  in ubi_create_volume()  local
167 	vol = kzalloc(sizeof(struct ubi_volume), GFP_KERNEL);  in ubi_create_volume()
168 	if (!vol)  in ubi_create_volume()
171 	device_initialize(&vol->dev);  in ubi_create_volume()
172 	vol->dev.release = vol_release;  in ubi_create_volume()
173 	vol->dev.parent = &ubi->dev;  in ubi_create_volume()
174 	vol->dev.class = &ubi_class;  in ubi_create_volume()
175 	vol->dev.groups = volume_dev_groups;  in ubi_create_volume()
178 		vol->skip_check = 1;  in ubi_create_volume()
220 	vol->usable_leb_size = ubi->leb_size - ubi->leb_size % req->alignment;  in ubi_create_volume()
221 	vol->reserved_pebs = div_u64(req->bytes + vol->usable_leb_size - 1,  in ubi_create_volume()
222 				     vol->usable_leb_size);  in ubi_create_volume()
225 	if (vol->reserved_pebs > ubi->avail_pebs) {  in ubi_create_volume()
234 	ubi->avail_pebs -= vol->reserved_pebs;  in ubi_create_volume()
235 	ubi->rsvd_pebs += vol->reserved_pebs;  in ubi_create_volume()
238 	vol->vol_id    = vol_id;  in ubi_create_volume()
239 	vol->alignment = req->alignment;  in ubi_create_volume()
240 	vol->data_pad  = ubi->leb_size % vol->alignment;  in ubi_create_volume()
241 	vol->vol_type  = req->vol_type;  in ubi_create_volume()
242 	vol->name_len  = req->name_len;  in ubi_create_volume()
243 	memcpy(vol->name, req->name, vol->name_len);  in ubi_create_volume()
244 	vol->ubi = ubi;  in ubi_create_volume()
254 	eba_tbl = ubi_eba_create_table(vol, vol->reserved_pebs);  in ubi_create_volume()
260 	ubi_eba_replace_table(vol, eba_tbl);  in ubi_create_volume()
262 	if (vol->vol_type == UBI_DYNAMIC_VOLUME) {  in ubi_create_volume()
263 		vol->used_ebs = vol->reserved_pebs;  in ubi_create_volume()
264 		vol->last_eb_bytes = vol->usable_leb_size;  in ubi_create_volume()
265 		vol->used_bytes =  in ubi_create_volume()
266 			(long long)vol->used_ebs * vol->usable_leb_size;  in ubi_create_volume()
268 		vol->used_ebs = div_u64_rem(vol->used_bytes,  in ubi_create_volume()
269 					    vol->usable_leb_size,  in ubi_create_volume()
270 					    &vol->last_eb_bytes);  in ubi_create_volume()
271 		if (vol->last_eb_bytes != 0)  in ubi_create_volume()
272 			vol->used_ebs += 1;  in ubi_create_volume()
274 			vol->last_eb_bytes = vol->usable_leb_size;  in ubi_create_volume()
279 	ubi->volumes[vol_id] = vol;  in ubi_create_volume()
284 	cdev_init(&vol->cdev, &ubi_vol_cdev_operations);  in ubi_create_volume()
285 	vol->cdev.owner = THIS_MODULE;  in ubi_create_volume()
287 	vol->dev.devt = MKDEV(MAJOR(ubi->cdev.dev), vol_id + 1);  in ubi_create_volume()
288 	dev_set_name(&vol->dev, "%s_%d", ubi->ubi_name, vol->vol_id);  in ubi_create_volume()
289 	err = cdev_device_add(&vol->cdev, &vol->dev);  in ubi_create_volume()
297 	vtbl_rec.reserved_pebs = cpu_to_be32(vol->reserved_pebs);  in ubi_create_volume()
298 	vtbl_rec.alignment     = cpu_to_be32(vol->alignment);  in ubi_create_volume()
299 	vtbl_rec.data_pad      = cpu_to_be32(vol->data_pad);  in ubi_create_volume()
300 	vtbl_rec.name_len      = cpu_to_be16(vol->name_len);  in ubi_create_volume()
301 	if (vol->vol_type == UBI_DYNAMIC_VOLUME)  in ubi_create_volume()
306 	if (vol->skip_check)  in ubi_create_volume()
309 	memcpy(vtbl_rec.name, vol->name, vol->name_len);  in ubi_create_volume()
315 	ubi_volume_notify(ubi, vol, UBI_VOLUME_ADDED);  in ubi_create_volume()
325 	cdev_device_del(&vol->cdev, &vol->dev);  in ubi_create_volume()
334 	ubi->rsvd_pebs -= vol->reserved_pebs;  in ubi_create_volume()
335 	ubi->avail_pebs += vol->reserved_pebs;  in ubi_create_volume()
338 	put_device(&vol->dev);  in ubi_create_volume()
355 	struct ubi_volume *vol = desc->vol;  in ubi_remove_volume()  local
356 	struct ubi_device *ubi = vol->ubi;  in ubi_remove_volume()
357 	int i, err, vol_id = vol->vol_id, reserved_pebs = vol->reserved_pebs;  in ubi_remove_volume()
361 	ubi_assert(vol == ubi->volumes[vol_id]);  in ubi_remove_volume()
367 	if (vol->ref_count > 1) {  in ubi_remove_volume()
384 	for (i = 0; i < vol->reserved_pebs; i++) {  in ubi_remove_volume()
385 		err = ubi_eba_unmap_leb(ubi, vol, i);  in ubi_remove_volume()
390 	cdev_device_del(&vol->cdev, &vol->dev);  in ubi_remove_volume()
391 	put_device(&vol->dev);  in ubi_remove_volume()
400 	ubi_volume_notify(ubi, vol, UBI_VOLUME_REMOVED);  in ubi_remove_volume()
409 	ubi->volumes[vol_id] = vol;  in ubi_remove_volume()
427 	struct ubi_volume *vol = desc->vol;  in ubi_resize_volume()  local
428 	struct ubi_device *ubi = vol->ubi;  in ubi_resize_volume()
431 	int vol_id = vol->vol_id;  in ubi_resize_volume()
437 		ubi->ubi_num, vol_id, vol->reserved_pebs, reserved_pebs);  in ubi_resize_volume()
439 	if (vol->vol_type == UBI_STATIC_VOLUME &&  in ubi_resize_volume()
440 	    reserved_pebs < vol->used_ebs) {  in ubi_resize_volume()
442 			reserved_pebs, vol->used_ebs);  in ubi_resize_volume()
447 	if (reserved_pebs == vol->reserved_pebs)  in ubi_resize_volume()
450 	new_eba_tbl = ubi_eba_create_table(vol, reserved_pebs);  in ubi_resize_volume()
455 	if (vol->ref_count > 1) {  in ubi_resize_volume()
463 	pebs = reserved_pebs - vol->reserved_pebs;  in ubi_resize_volume()
478 		ubi_eba_copy_table(vol, new_eba_tbl, vol->reserved_pebs);  in ubi_resize_volume()
479 		ubi_eba_replace_table(vol, new_eba_tbl);  in ubi_resize_volume()
485 			err = ubi_eba_unmap_leb(ubi, vol, reserved_pebs + i);  in ubi_resize_volume()
493 		ubi_eba_copy_table(vol, new_eba_tbl, reserved_pebs);  in ubi_resize_volume()
494 		ubi_eba_replace_table(vol, new_eba_tbl);  in ubi_resize_volume()
516 	vol->reserved_pebs = reserved_pebs;  in ubi_resize_volume()
517 	if (vol->vol_type == UBI_DYNAMIC_VOLUME) {  in ubi_resize_volume()
518 		vol->used_ebs = reserved_pebs;  in ubi_resize_volume()
519 		vol->last_eb_bytes = vol->usable_leb_size;  in ubi_resize_volume()
520 		vol->used_bytes =  in ubi_resize_volume()
521 			(long long)vol->used_ebs * vol->usable_leb_size;  in ubi_resize_volume()
524 	ubi_volume_notify(ubi, vol, UBI_VOLUME_RESIZED);  in ubi_resize_volume()
564 			struct ubi_volume *vol = re->desc->vol;  in ubi_rename_volumes()  local
567 			vol->name_len = re->new_name_len;  in ubi_rename_volumes()
568 			memcpy(vol->name, re->new_name, re->new_name_len + 1);  in ubi_rename_volumes()
570 			ubi_volume_notify(ubi, vol, UBI_VOLUME_RENAMED);  in ubi_rename_volumes()
588 int ubi_add_volume(struct ubi_device *ubi, struct ubi_volume *vol)  in ubi_add_volume()  argument
590 	int err, vol_id = vol->vol_id;  in ubi_add_volume()
596 	cdev_init(&vol->cdev, &ubi_vol_cdev_operations);  in ubi_add_volume()
597 	vol->cdev.owner = THIS_MODULE;  in ubi_add_volume()
598 	dev = MKDEV(MAJOR(ubi->cdev.dev), vol->vol_id + 1);  in ubi_add_volume()
599 	err = cdev_add(&vol->cdev, dev, 1);  in ubi_add_volume()
606 	vol->dev.release = vol_release;  in ubi_add_volume()
607 	vol->dev.parent = &ubi->dev;  in ubi_add_volume()
608 	vol->dev.devt = dev;  in ubi_add_volume()
609 	vol->dev.class = &ubi_class;  in ubi_add_volume()
610 	vol->dev.groups = volume_dev_groups;  in ubi_add_volume()
611 	dev_set_name(&vol->dev, "%s_%d", ubi->ubi_name, vol->vol_id);  in ubi_add_volume()
612 	err = device_register(&vol->dev);  in ubi_add_volume()
620 	cdev_del(&vol->cdev);  in ubi_add_volume()
632 void ubi_free_volume(struct ubi_device *ubi, struct ubi_volume *vol)  in ubi_free_volume()  argument
634 	dbg_gen("free volume %d", vol->vol_id);  in ubi_free_volume()
636 	ubi->volumes[vol->vol_id] = NULL;  in ubi_free_volume()
637 	cdev_del(&vol->cdev);  in ubi_free_volume()
638 	device_unregister(&vol->dev);  in ubi_free_volume()
652 	const struct ubi_volume *vol;  in self_check_volume()  local
658 	vol = ubi->volumes[idx];  in self_check_volume()
660 	if (!vol) {  in self_check_volume()
669 	if (vol->reserved_pebs < 0 || vol->alignment < 0 || vol->data_pad < 0 ||  in self_check_volume()
670 	    vol->name_len < 0) {  in self_check_volume()
674 	if (vol->alignment > ubi->leb_size || vol->alignment == 0) {  in self_check_volume()
679 	n = vol->alignment & (ubi->min_io_size - 1);  in self_check_volume()
680 	if (vol->alignment != 1 && n) {  in self_check_volume()
685 	n = ubi->leb_size % vol->alignment;  in self_check_volume()
686 	if (vol->data_pad != n) {  in self_check_volume()
691 	if (vol->vol_type != UBI_DYNAMIC_VOLUME &&  in self_check_volume()
692 	    vol->vol_type != UBI_STATIC_VOLUME) {  in self_check_volume()
697 	if (vol->upd_marker && vol->corrupted) {  in self_check_volume()
702 	if (vol->reserved_pebs > ubi->good_peb_count) {  in self_check_volume()
707 	n = ubi->leb_size - vol->data_pad;  in self_check_volume()
708 	if (vol->usable_leb_size != ubi->leb_size - vol->data_pad) {  in self_check_volume()
713 	if (vol->name_len > UBI_VOL_NAME_MAX) {  in self_check_volume()
719 	n = strnlen(vol->name, vol->name_len + 1);  in self_check_volume()
720 	if (n != vol->name_len) {  in self_check_volume()
725 	n = (long long)vol->used_ebs * vol->usable_leb_size;  in self_check_volume()
726 	if (vol->vol_type == UBI_DYNAMIC_VOLUME) {  in self_check_volume()
727 		if (vol->corrupted) {  in self_check_volume()
731 		if (vol->used_ebs != vol->reserved_pebs) {  in self_check_volume()
735 		if (vol->last_eb_bytes != vol->usable_leb_size) {  in self_check_volume()
739 		if (vol->used_bytes != n) {  in self_check_volume()
744 		if (vol->skip_check) {  in self_check_volume()
749 		if (vol->used_ebs < 0 || vol->used_ebs > vol->reserved_pebs) {  in self_check_volume()
753 		if (vol->last_eb_bytes < 0 ||  in self_check_volume()
754 		    vol->last_eb_bytes > vol->usable_leb_size) {  in self_check_volume()
758 		if (vol->used_bytes < 0 || vol->used_bytes > n ||  in self_check_volume()
759 		    vol->used_bytes < n - vol->usable_leb_size) {  in self_check_volume()
775 	if (alignment != vol->alignment || data_pad != vol->data_pad ||  in self_check_volume()
776 	    upd_marker != vol->upd_marker || vol_type != vol->vol_type ||  in self_check_volume()
777 	    name_len != vol->name_len || strncmp(name, vol->name, name_len)) {  in self_check_volume()
787 	if (vol)  in self_check_volume()
788 		ubi_dump_vol_info(vol);  in self_check_volume()