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()
126 	struct ubi_volume *vol = container_of(dev, struct ubi_volume, dev);  in vol_release()  local
128 	kfree(vol->eba_tbl);  in vol_release()
129 	kfree(vol);  in vol_release()
144 static int volume_sysfs_init(struct ubi_device *ubi, struct ubi_volume *vol)  in volume_sysfs_init()  argument
148 	err = device_create_file(&vol->dev, &attr_vol_reserved_ebs);  in volume_sysfs_init()
151 	err = device_create_file(&vol->dev, &attr_vol_type);  in volume_sysfs_init()
154 	err = device_create_file(&vol->dev, &attr_vol_name);  in volume_sysfs_init()
157 	err = device_create_file(&vol->dev, &attr_vol_corrupted);  in volume_sysfs_init()
160 	err = device_create_file(&vol->dev, &attr_vol_alignment);  in volume_sysfs_init()
163 	err = device_create_file(&vol->dev, &attr_vol_usable_eb_size);  in volume_sysfs_init()
166 	err = device_create_file(&vol->dev, &attr_vol_data_bytes);  in volume_sysfs_init()
169 	err = device_create_file(&vol->dev, &attr_vol_upd_marker);  in volume_sysfs_init()
177 static void volume_sysfs_close(struct ubi_volume *vol)  in volume_sysfs_close()  argument
179 	device_remove_file(&vol->dev, &attr_vol_upd_marker);  in volume_sysfs_close()
180 	device_remove_file(&vol->dev, &attr_vol_data_bytes);  in volume_sysfs_close()
181 	device_remove_file(&vol->dev, &attr_vol_usable_eb_size);  in volume_sysfs_close()
182 	device_remove_file(&vol->dev, &attr_vol_alignment);  in volume_sysfs_close()
183 	device_remove_file(&vol->dev, &attr_vol_corrupted);  in volume_sysfs_close()
184 	device_remove_file(&vol->dev, &attr_vol_name);  in volume_sysfs_close()
185 	device_remove_file(&vol->dev, &attr_vol_type);  in volume_sysfs_close()
186 	device_remove_file(&vol->dev, &attr_vol_reserved_ebs);  in volume_sysfs_close()
187 	device_unregister(&vol->dev);  in volume_sysfs_close()
204 	struct ubi_volume *vol;  in ubi_create_volume()  local
211 	vol = kzalloc(sizeof(struct ubi_volume), GFP_KERNEL);  in ubi_create_volume()
212 	if (!vol)  in ubi_create_volume()
255 	vol->usable_leb_size = ubi->leb_size - ubi->leb_size % req->alignment;  in ubi_create_volume()
256 	vol->reserved_pebs += div_u64(req->bytes + vol->usable_leb_size - 1,  in ubi_create_volume()
257 				      vol->usable_leb_size);  in ubi_create_volume()
260 	if (vol->reserved_pebs > ubi->avail_pebs) {  in ubi_create_volume()
269 	ubi->avail_pebs -= vol->reserved_pebs;  in ubi_create_volume()
270 	ubi->rsvd_pebs += vol->reserved_pebs;  in ubi_create_volume()
273 	vol->vol_id    = vol_id;  in ubi_create_volume()
274 	vol->alignment = req->alignment;  in ubi_create_volume()
275 	vol->data_pad  = ubi->leb_size % vol->alignment;  in ubi_create_volume()
276 	vol->vol_type  = req->vol_type;  in ubi_create_volume()
277 	vol->name_len  = req->name_len;  in ubi_create_volume()
278 	memcpy(vol->name, req->name, vol->name_len);  in ubi_create_volume()
279 	vol->ubi = ubi;  in ubi_create_volume()
289 	vol->eba_tbl = kmalloc(vol->reserved_pebs * sizeof(int), GFP_KERNEL);  in ubi_create_volume()
290 	if (!vol->eba_tbl) {  in ubi_create_volume()
295 	for (i = 0; i < vol->reserved_pebs; i++)  in ubi_create_volume()
296 		vol->eba_tbl[i] = UBI_LEB_UNMAPPED;  in ubi_create_volume()
298 	if (vol->vol_type == UBI_DYNAMIC_VOLUME) {  in ubi_create_volume()
299 		vol->used_ebs = vol->reserved_pebs;  in ubi_create_volume()
300 		vol->last_eb_bytes = vol->usable_leb_size;  in ubi_create_volume()
301 		vol->used_bytes =  in ubi_create_volume()
302 			(long long)vol->used_ebs * vol->usable_leb_size;  in ubi_create_volume()
304 		vol->used_ebs = div_u64_rem(vol->used_bytes,  in ubi_create_volume()
305 					    vol->usable_leb_size,  in ubi_create_volume()
306 					    &vol->last_eb_bytes);  in ubi_create_volume()
307 		if (vol->last_eb_bytes != 0)  in ubi_create_volume()
308 			vol->used_ebs += 1;  in ubi_create_volume()
310 			vol->last_eb_bytes = vol->usable_leb_size;  in ubi_create_volume()
314 	cdev_init(&vol->cdev, &ubi_vol_cdev_operations);  in ubi_create_volume()
315 	vol->cdev.owner = THIS_MODULE;  in ubi_create_volume()
317 	err = cdev_add(&vol->cdev, dev, 1);  in ubi_create_volume()
323 	vol->dev.release = vol_release;  in ubi_create_volume()
324 	vol->dev.parent = &ubi->dev;  in ubi_create_volume()
325 	vol->dev.devt = dev;  in ubi_create_volume()
326 	vol->dev.class = ubi_class;  in ubi_create_volume()
328 	dev_set_name(&vol->dev, "%s_%d", ubi->ubi_name, vol->vol_id);  in ubi_create_volume()
329 	err = device_register(&vol->dev);  in ubi_create_volume()
335 	err = volume_sysfs_init(ubi, vol);  in ubi_create_volume()
341 	vtbl_rec.reserved_pebs = cpu_to_be32(vol->reserved_pebs);  in ubi_create_volume()
342 	vtbl_rec.alignment     = cpu_to_be32(vol->alignment);  in ubi_create_volume()
343 	vtbl_rec.data_pad      = cpu_to_be32(vol->data_pad);  in ubi_create_volume()
344 	vtbl_rec.name_len      = cpu_to_be16(vol->name_len);  in ubi_create_volume()
345 	if (vol->vol_type == UBI_DYNAMIC_VOLUME)  in ubi_create_volume()
349 	memcpy(vtbl_rec.name, vol->name, vol->name_len);  in ubi_create_volume()
356 	ubi->volumes[vol_id] = vol;  in ubi_create_volume()
360 	ubi_volume_notify(ubi, vol, UBI_VOLUME_ADDED);  in ubi_create_volume()
374 	get_device(&vol->dev);  in ubi_create_volume()
375 	volume_sysfs_close(vol);  in ubi_create_volume()
377 	cdev_del(&vol->cdev);  in ubi_create_volume()
380 		kfree(vol->eba_tbl);  in ubi_create_volume()
383 	ubi->rsvd_pebs -= vol->reserved_pebs;  in ubi_create_volume()
384 	ubi->avail_pebs += vol->reserved_pebs;  in ubi_create_volume()
388 		kfree(vol);  in ubi_create_volume()
390 		put_device(&vol->dev);  in ubi_create_volume()
407 	struct ubi_volume *vol = desc->vol;  in ubi_remove_volume()  local
408 	struct ubi_device *ubi = vol->ubi;  in ubi_remove_volume()
409 	int i, err, vol_id = vol->vol_id, reserved_pebs = vol->reserved_pebs;  in ubi_remove_volume()
413 	ubi_assert(vol == ubi->volumes[vol_id]);  in ubi_remove_volume()
419 	if (vol->ref_count > 1) {  in ubi_remove_volume()
436 	for (i = 0; i < vol->reserved_pebs; i++) {  in ubi_remove_volume()
437 		err = ubi_eba_unmap_leb(ubi, vol, i);  in ubi_remove_volume()
442 	cdev_del(&vol->cdev);  in ubi_remove_volume()
443 	volume_sysfs_close(vol);  in ubi_remove_volume()
452 	ubi_volume_notify(ubi, vol, UBI_VOLUME_REMOVED);  in ubi_remove_volume()
461 	ubi->volumes[vol_id] = vol;  in ubi_remove_volume()
479 	struct ubi_volume *vol = desc->vol;  in ubi_resize_volume()  local
480 	struct ubi_device *ubi = vol->ubi;  in ubi_resize_volume()
482 	int vol_id = vol->vol_id;  in ubi_resize_volume()
488 		ubi->ubi_num, vol_id, vol->reserved_pebs, reserved_pebs);  in ubi_resize_volume()
490 	if (vol->vol_type == UBI_STATIC_VOLUME &&  in ubi_resize_volume()
491 	    reserved_pebs < vol->used_ebs) {  in ubi_resize_volume()
493 			reserved_pebs, vol->used_ebs);  in ubi_resize_volume()
498 	if (reserved_pebs == vol->reserved_pebs)  in ubi_resize_volume()
509 	if (vol->ref_count > 1) {  in ubi_resize_volume()
517 	pebs = reserved_pebs - vol->reserved_pebs;  in ubi_resize_volume()
532 		for (i = 0; i < vol->reserved_pebs; i++)  in ubi_resize_volume()
533 			new_mapping[i] = vol->eba_tbl[i];  in ubi_resize_volume()
534 		kfree(vol->eba_tbl);  in ubi_resize_volume()
535 		vol->eba_tbl = new_mapping;  in ubi_resize_volume()
548 			err = ubi_eba_unmap_leb(ubi, vol, reserved_pebs + i);  in ubi_resize_volume()
557 			new_mapping[i] = vol->eba_tbl[i];  in ubi_resize_volume()
558 		kfree(vol->eba_tbl);  in ubi_resize_volume()
559 		vol->eba_tbl = new_mapping;  in ubi_resize_volume()
563 	vol->reserved_pebs = reserved_pebs;  in ubi_resize_volume()
564 	if (vol->vol_type == UBI_DYNAMIC_VOLUME) {  in ubi_resize_volume()
565 		vol->used_ebs = reserved_pebs;  in ubi_resize_volume()
566 		vol->last_eb_bytes = vol->usable_leb_size;  in ubi_resize_volume()
567 		vol->used_bytes =  in ubi_resize_volume()
568 			(long long)vol->used_ebs * vol->usable_leb_size;  in ubi_resize_volume()
571 	ubi_volume_notify(ubi, vol, UBI_VOLUME_RESIZED);  in ubi_resize_volume()
611 			struct ubi_volume *vol = re->desc->vol;  in ubi_rename_volumes()  local
614 			vol->name_len = re->new_name_len;  in ubi_rename_volumes()
615 			memcpy(vol->name, re->new_name, re->new_name_len + 1);  in ubi_rename_volumes()
617 			ubi_volume_notify(ubi, vol, UBI_VOLUME_RENAMED);  in ubi_rename_volumes()
635 int ubi_add_volume(struct ubi_device *ubi, struct ubi_volume *vol)  in ubi_add_volume()  argument
637 	int err, vol_id = vol->vol_id;  in ubi_add_volume()
643 	cdev_init(&vol->cdev, &ubi_vol_cdev_operations);  in ubi_add_volume()
644 	vol->cdev.owner = THIS_MODULE;  in ubi_add_volume()
645 	dev = MKDEV(MAJOR(ubi->cdev.dev), vol->vol_id + 1);  in ubi_add_volume()
646 	err = cdev_add(&vol->cdev, dev, 1);  in ubi_add_volume()
653 	vol->dev.release = vol_release;  in ubi_add_volume()
654 	vol->dev.parent = &ubi->dev;  in ubi_add_volume()
655 	vol->dev.devt = dev;  in ubi_add_volume()
656 	vol->dev.class = ubi_class;  in ubi_add_volume()
657 	dev_set_name(&vol->dev, "%s_%d", ubi->ubi_name, vol->vol_id);  in ubi_add_volume()
658 	err = device_register(&vol->dev);  in ubi_add_volume()
662 	err = volume_sysfs_init(ubi, vol);  in ubi_add_volume()
664 		cdev_del(&vol->cdev);  in ubi_add_volume()
665 		volume_sysfs_close(vol);  in ubi_add_volume()
673 	cdev_del(&vol->cdev);  in ubi_add_volume()
685 void ubi_free_volume(struct ubi_device *ubi, struct ubi_volume *vol)  in ubi_free_volume()  argument
687 	dbg_gen("free volume %d", vol->vol_id);  in ubi_free_volume()
689 	ubi->volumes[vol->vol_id] = NULL;  in ubi_free_volume()
690 	cdev_del(&vol->cdev);  in ubi_free_volume()
691 	volume_sysfs_close(vol);  in ubi_free_volume()
705 	const struct ubi_volume *vol;  in self_check_volume()  local
711 	vol = ubi->volumes[idx];  in self_check_volume()
713 	if (!vol) {  in self_check_volume()
722 	if (vol->reserved_pebs < 0 || vol->alignment < 0 || vol->data_pad < 0 ||  in self_check_volume()
723 	    vol->name_len < 0) {  in self_check_volume()
727 	if (vol->alignment > ubi->leb_size || vol->alignment == 0) {  in self_check_volume()
732 	n = vol->alignment & (ubi->min_io_size - 1);  in self_check_volume()
733 	if (vol->alignment != 1 && n) {  in self_check_volume()
738 	n = ubi->leb_size % vol->alignment;  in self_check_volume()
739 	if (vol->data_pad != n) {  in self_check_volume()
744 	if (vol->vol_type != UBI_DYNAMIC_VOLUME &&  in self_check_volume()
745 	    vol->vol_type != UBI_STATIC_VOLUME) {  in self_check_volume()
750 	if (vol->upd_marker && vol->corrupted) {  in self_check_volume()
755 	if (vol->reserved_pebs > ubi->good_peb_count) {  in self_check_volume()
760 	n = ubi->leb_size - vol->data_pad;  in self_check_volume()
761 	if (vol->usable_leb_size != ubi->leb_size - vol->data_pad) {  in self_check_volume()
766 	if (vol->name_len > UBI_VOL_NAME_MAX) {  in self_check_volume()
772 	n = strnlen(vol->name, vol->name_len + 1);  in self_check_volume()
773 	if (n != vol->name_len) {  in self_check_volume()
778 	n = (long long)vol->used_ebs * vol->usable_leb_size;  in self_check_volume()
779 	if (vol->vol_type == UBI_DYNAMIC_VOLUME) {  in self_check_volume()
780 		if (vol->corrupted) {  in self_check_volume()
784 		if (vol->used_ebs != vol->reserved_pebs) {  in self_check_volume()
788 		if (vol->last_eb_bytes != vol->usable_leb_size) {  in self_check_volume()
792 		if (vol->used_bytes != n) {  in self_check_volume()
797 		if (vol->used_ebs < 0 || vol->used_ebs > vol->reserved_pebs) {  in self_check_volume()
801 		if (vol->last_eb_bytes < 0 ||  in self_check_volume()
802 		    vol->last_eb_bytes > vol->usable_leb_size) {  in self_check_volume()
806 		if (vol->used_bytes < 0 || vol->used_bytes > n ||  in self_check_volume()
807 		    vol->used_bytes < n - vol->usable_leb_size) {  in self_check_volume()
823 	if (alignment != vol->alignment || data_pad != vol->data_pad ||  in self_check_volume()
824 	    upd_marker != vol->upd_marker || vol_type != vol->vol_type ||  in self_check_volume()
825 	    name_len != vol->name_len || strncmp(name, vol->name, name_len)) {  in self_check_volume()
835 	if (vol)  in self_check_volume()
836 		ubi_dump_vol_info(vol);  in self_check_volume()