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 	kfree(vol->eba_tbl);  in vol_release()
142 	kfree(vol);  in vol_release()
159 	struct ubi_volume *vol;  in ubi_create_volume()  local
166 	vol = kzalloc(sizeof(struct ubi_volume), GFP_KERNEL);  in ubi_create_volume()
167 	if (!vol)  in ubi_create_volume()
210 	vol->usable_leb_size = ubi->leb_size - ubi->leb_size % req->alignment;  in ubi_create_volume()
211 	vol->reserved_pebs = div_u64(req->bytes + vol->usable_leb_size - 1,  in ubi_create_volume()
212 				     vol->usable_leb_size);  in ubi_create_volume()
215 	if (vol->reserved_pebs > ubi->avail_pebs) {  in ubi_create_volume()
224 	ubi->avail_pebs -= vol->reserved_pebs;  in ubi_create_volume()
225 	ubi->rsvd_pebs += vol->reserved_pebs;  in ubi_create_volume()
228 	vol->vol_id    = vol_id;  in ubi_create_volume()
229 	vol->alignment = req->alignment;  in ubi_create_volume()
230 	vol->data_pad  = ubi->leb_size % vol->alignment;  in ubi_create_volume()
231 	vol->vol_type  = req->vol_type;  in ubi_create_volume()
232 	vol->name_len  = req->name_len;  in ubi_create_volume()
233 	memcpy(vol->name, req->name, vol->name_len);  in ubi_create_volume()
234 	vol->ubi = ubi;  in ubi_create_volume()
244 	vol->eba_tbl = kmalloc(vol->reserved_pebs * sizeof(int), GFP_KERNEL);  in ubi_create_volume()
245 	if (!vol->eba_tbl) {  in ubi_create_volume()
250 	for (i = 0; i < vol->reserved_pebs; i++)  in ubi_create_volume()
251 		vol->eba_tbl[i] = UBI_LEB_UNMAPPED;  in ubi_create_volume()
253 	if (vol->vol_type == UBI_DYNAMIC_VOLUME) {  in ubi_create_volume()
254 		vol->used_ebs = vol->reserved_pebs;  in ubi_create_volume()
255 		vol->last_eb_bytes = vol->usable_leb_size;  in ubi_create_volume()
256 		vol->used_bytes =  in ubi_create_volume()
257 			(long long)vol->used_ebs * vol->usable_leb_size;  in ubi_create_volume()
259 		vol->used_ebs = div_u64_rem(vol->used_bytes,  in ubi_create_volume()
260 					    vol->usable_leb_size,  in ubi_create_volume()
261 					    &vol->last_eb_bytes);  in ubi_create_volume()
262 		if (vol->last_eb_bytes != 0)  in ubi_create_volume()
263 			vol->used_ebs += 1;  in ubi_create_volume()
265 			vol->last_eb_bytes = vol->usable_leb_size;  in ubi_create_volume()
269 	cdev_init(&vol->cdev, &ubi_vol_cdev_operations);  in ubi_create_volume()
270 	vol->cdev.owner = THIS_MODULE;  in ubi_create_volume()
272 	err = cdev_add(&vol->cdev, dev, 1);  in ubi_create_volume()
278 	vol->dev.release = vol_release;  in ubi_create_volume()
279 	vol->dev.parent = &ubi->dev;  in ubi_create_volume()
280 	vol->dev.devt = dev;  in ubi_create_volume()
281 	vol->dev.class = &ubi_class;  in ubi_create_volume()
282 	vol->dev.groups = volume_dev_groups;  in ubi_create_volume()
284 	dev_set_name(&vol->dev, "%s_%d", ubi->ubi_name, vol->vol_id);  in ubi_create_volume()
285 	err = device_register(&vol->dev);  in ubi_create_volume()
293 	vtbl_rec.reserved_pebs = cpu_to_be32(vol->reserved_pebs);  in ubi_create_volume()
294 	vtbl_rec.alignment     = cpu_to_be32(vol->alignment);  in ubi_create_volume()
295 	vtbl_rec.data_pad      = cpu_to_be32(vol->data_pad);  in ubi_create_volume()
296 	vtbl_rec.name_len      = cpu_to_be16(vol->name_len);  in ubi_create_volume()
297 	if (vol->vol_type == UBI_DYNAMIC_VOLUME)  in ubi_create_volume()
301 	memcpy(vtbl_rec.name, vol->name, vol->name_len);  in ubi_create_volume()
308 	ubi->volumes[vol_id] = vol;  in ubi_create_volume()
312 	ubi_volume_notify(ubi, vol, UBI_VOLUME_ADDED);  in ubi_create_volume()
326 	get_device(&vol->dev);  in ubi_create_volume()
327 	device_unregister(&vol->dev);  in ubi_create_volume()
329 	cdev_del(&vol->cdev);  in ubi_create_volume()
332 		kfree(vol->eba_tbl);  in ubi_create_volume()
335 	ubi->rsvd_pebs -= vol->reserved_pebs;  in ubi_create_volume()
336 	ubi->avail_pebs += vol->reserved_pebs;  in ubi_create_volume()
340 		kfree(vol);  in ubi_create_volume()
342 		put_device(&vol->dev);  in ubi_create_volume()
359 	struct ubi_volume *vol = desc->vol;  in ubi_remove_volume()  local
360 	struct ubi_device *ubi = vol->ubi;  in ubi_remove_volume()
361 	int i, err, vol_id = vol->vol_id, reserved_pebs = vol->reserved_pebs;  in ubi_remove_volume()
365 	ubi_assert(vol == ubi->volumes[vol_id]);  in ubi_remove_volume()
371 	if (vol->ref_count > 1) {  in ubi_remove_volume()
388 	for (i = 0; i < vol->reserved_pebs; i++) {  in ubi_remove_volume()
389 		err = ubi_eba_unmap_leb(ubi, vol, i);  in ubi_remove_volume()
394 	cdev_del(&vol->cdev);  in ubi_remove_volume()
395 	device_unregister(&vol->dev);  in ubi_remove_volume()
404 	ubi_volume_notify(ubi, vol, UBI_VOLUME_REMOVED);  in ubi_remove_volume()
413 	ubi->volumes[vol_id] = vol;  in ubi_remove_volume()
431 	struct ubi_volume *vol = desc->vol;  in ubi_resize_volume()  local
432 	struct ubi_device *ubi = vol->ubi;  in ubi_resize_volume()
434 	int vol_id = vol->vol_id;  in ubi_resize_volume()
440 		ubi->ubi_num, vol_id, vol->reserved_pebs, reserved_pebs);  in ubi_resize_volume()
442 	if (vol->vol_type == UBI_STATIC_VOLUME &&  in ubi_resize_volume()
443 	    reserved_pebs < vol->used_ebs) {  in ubi_resize_volume()
445 			reserved_pebs, vol->used_ebs);  in ubi_resize_volume()
450 	if (reserved_pebs == vol->reserved_pebs)  in ubi_resize_volume()
461 	if (vol->ref_count > 1) {  in ubi_resize_volume()
469 	pebs = reserved_pebs - vol->reserved_pebs;  in ubi_resize_volume()
484 		for (i = 0; i < vol->reserved_pebs; i++)  in ubi_resize_volume()
485 			new_mapping[i] = vol->eba_tbl[i];  in ubi_resize_volume()
486 		kfree(vol->eba_tbl);  in ubi_resize_volume()
487 		vol->eba_tbl = new_mapping;  in ubi_resize_volume()
500 			err = ubi_eba_unmap_leb(ubi, vol, reserved_pebs + i);  in ubi_resize_volume()
509 			new_mapping[i] = vol->eba_tbl[i];  in ubi_resize_volume()
510 		kfree(vol->eba_tbl);  in ubi_resize_volume()
511 		vol->eba_tbl = new_mapping;  in ubi_resize_volume()
515 	vol->reserved_pebs = reserved_pebs;  in ubi_resize_volume()
516 	if (vol->vol_type == UBI_DYNAMIC_VOLUME) {  in ubi_resize_volume()
517 		vol->used_ebs = reserved_pebs;  in ubi_resize_volume()
518 		vol->last_eb_bytes = vol->usable_leb_size;  in ubi_resize_volume()
519 		vol->used_bytes =  in ubi_resize_volume()
520 			(long long)vol->used_ebs * vol->usable_leb_size;  in ubi_resize_volume()
523 	ubi_volume_notify(ubi, vol, UBI_VOLUME_RESIZED);  in ubi_resize_volume()
563 			struct ubi_volume *vol = re->desc->vol;  in ubi_rename_volumes()  local
566 			vol->name_len = re->new_name_len;  in ubi_rename_volumes()
567 			memcpy(vol->name, re->new_name, re->new_name_len + 1);  in ubi_rename_volumes()
569 			ubi_volume_notify(ubi, vol, UBI_VOLUME_RENAMED);  in ubi_rename_volumes()
587 int ubi_add_volume(struct ubi_device *ubi, struct ubi_volume *vol)  in ubi_add_volume()  argument
589 	int err, vol_id = vol->vol_id;  in ubi_add_volume()
595 	cdev_init(&vol->cdev, &ubi_vol_cdev_operations);  in ubi_add_volume()
596 	vol->cdev.owner = THIS_MODULE;  in ubi_add_volume()
597 	dev = MKDEV(MAJOR(ubi->cdev.dev), vol->vol_id + 1);  in ubi_add_volume()
598 	err = cdev_add(&vol->cdev, dev, 1);  in ubi_add_volume()
605 	vol->dev.release = vol_release;  in ubi_add_volume()
606 	vol->dev.parent = &ubi->dev;  in ubi_add_volume()
607 	vol->dev.devt = dev;  in ubi_add_volume()
608 	vol->dev.class = &ubi_class;  in ubi_add_volume()
609 	vol->dev.groups = volume_dev_groups;  in ubi_add_volume()
610 	dev_set_name(&vol->dev, "%s_%d", ubi->ubi_name, vol->vol_id);  in ubi_add_volume()
611 	err = device_register(&vol->dev);  in ubi_add_volume()
619 	cdev_del(&vol->cdev);  in ubi_add_volume()
631 void ubi_free_volume(struct ubi_device *ubi, struct ubi_volume *vol)  in ubi_free_volume()  argument
633 	dbg_gen("free volume %d", vol->vol_id);  in ubi_free_volume()
635 	ubi->volumes[vol->vol_id] = NULL;  in ubi_free_volume()
636 	cdev_del(&vol->cdev);  in ubi_free_volume()
637 	device_unregister(&vol->dev);  in ubi_free_volume()
651 	const struct ubi_volume *vol;  in self_check_volume()  local
657 	vol = ubi->volumes[idx];  in self_check_volume()
659 	if (!vol) {  in self_check_volume()
668 	if (vol->reserved_pebs < 0 || vol->alignment < 0 || vol->data_pad < 0 ||  in self_check_volume()
669 	    vol->name_len < 0) {  in self_check_volume()
673 	if (vol->alignment > ubi->leb_size || vol->alignment == 0) {  in self_check_volume()
678 	n = vol->alignment & (ubi->min_io_size - 1);  in self_check_volume()
679 	if (vol->alignment != 1 && n) {  in self_check_volume()
684 	n = ubi->leb_size % vol->alignment;  in self_check_volume()
685 	if (vol->data_pad != n) {  in self_check_volume()
690 	if (vol->vol_type != UBI_DYNAMIC_VOLUME &&  in self_check_volume()
691 	    vol->vol_type != UBI_STATIC_VOLUME) {  in self_check_volume()
696 	if (vol->upd_marker && vol->corrupted) {  in self_check_volume()
701 	if (vol->reserved_pebs > ubi->good_peb_count) {  in self_check_volume()
706 	n = ubi->leb_size - vol->data_pad;  in self_check_volume()
707 	if (vol->usable_leb_size != ubi->leb_size - vol->data_pad) {  in self_check_volume()
712 	if (vol->name_len > UBI_VOL_NAME_MAX) {  in self_check_volume()
718 	n = strnlen(vol->name, vol->name_len + 1);  in self_check_volume()
719 	if (n != vol->name_len) {  in self_check_volume()
724 	n = (long long)vol->used_ebs * vol->usable_leb_size;  in self_check_volume()
725 	if (vol->vol_type == UBI_DYNAMIC_VOLUME) {  in self_check_volume()
726 		if (vol->corrupted) {  in self_check_volume()
730 		if (vol->used_ebs != vol->reserved_pebs) {  in self_check_volume()
734 		if (vol->last_eb_bytes != vol->usable_leb_size) {  in self_check_volume()
738 		if (vol->used_bytes != n) {  in self_check_volume()
743 		if (vol->used_ebs < 0 || vol->used_ebs > vol->reserved_pebs) {  in self_check_volume()
747 		if (vol->last_eb_bytes < 0 ||  in self_check_volume()
748 		    vol->last_eb_bytes > vol->usable_leb_size) {  in self_check_volume()
752 		if (vol->used_bytes < 0 || vol->used_bytes > n ||  in self_check_volume()
753 		    vol->used_bytes < n - vol->usable_leb_size) {  in self_check_volume()
769 	if (alignment != vol->alignment || data_pad != vol->data_pad ||  in self_check_volume()
770 	    upd_marker != vol->upd_marker || vol_type != vol->vol_type ||  in self_check_volume()
771 	    name_len != vol->name_len || strncmp(name, vol->name, name_len)) {  in self_check_volume()
781 	if (vol)  in self_check_volume()
782 		ubi_dump_vol_info(vol);  in self_check_volume()