mtd/ubi/attach.c

107 	struct ubi_ainf_volume *av;
113 		av = rb_entry(parent, struct ubi_ainf_volume, rb);
115 		if (vol_id == av->vol_id) {
121 			return av;
124 		if (vol_id > av->vol_id)
134 	av = kzalloc(sizeof(*av), GFP_KERNEL);
135 	if (!av)
138 	av->vol_id = vol_id;
143 	rb_link_node(&av->rb, parent, p);
144 	rb_insert_color(&av->rb, &ai->volumes);
148 	return av;
319  * @av: information about the volume this logical eraseblock belongs to
332 			    const struct ubi_ainf_volume *av, int pnum)
339 	if (av->leb_count != 0) {
348 		if (vol_id != av->vol_id) {
353 		if (av->vol_type == UBI_STATIC_VOLUME)
363 		if (used_ebs != av->used_ebs) {
368 		if (data_pad != av->data_pad) {
379 	ubi_dump_av(av);
393  * to the allocated "av" object in case of success and a negative error code in
400 	struct ubi_ainf_volume *av;
405 	av = ubi_find_or_add_av(ai, vol_id, &created);
406 	if (IS_ERR(av) || !created)
407 		return av;
409 	av->used_ebs = be32_to_cpu(vid_hdr->used_ebs);
410 	av->data_pad = be32_to_cpu(vid_hdr->data_pad);
411 	av->compat = vid_hdr->compat;
412 	av->vol_type = vid_hdr->vol_type == UBI_VID_DYNAMIC ? UBI_DYNAMIC_VOLUME
415 	return av;
568 	struct ubi_ainf_volume *av;
579 	av = add_volume(ai, vol_id, pnum, vid_hdr);
580 	if (IS_ERR(av))
581 		return PTR_ERR(av);
590 	p = &av->root.rb_node;
646 			err = validate_vid_hdr(ubi, vid_hdr, av, pnum);
664 			if (av->highest_lnum == lnum)
665 				av->last_data_size =
684 	err = validate_vid_hdr(ubi, vid_hdr, av, pnum);
698 	if (av->highest_lnum <= lnum) {
699 		av->highest_lnum = lnum;
700 		av->last_data_size = be32_to_cpu(vid_hdr->data_size);
703 	av->leb_count += 1;
705 	rb_insert_color(&aeb->u.rb, &av->root);
741 static void destroy_av(struct ubi_attach_info *ai, struct ubi_ainf_volume *av,
747  * @av: the volume attaching information to delete
749 void ubi_remove_av(struct ubi_attach_info *ai, struct ubi_ainf_volume *av)
751 	dbg_bld("remove attaching information about volume %d", av->vol_id);
753 	rb_erase(&av->rb, &ai->volumes);
754 	destroy_av(ai, av, &ai->erase);
1271  * @av: volume attaching information
1277 static void destroy_av(struct ubi_attach_info *ai, struct ubi_ainf_volume *av,
1281 	struct rb_node *this = av->root.rb_node;
1304 	kfree(av);
1314 	struct ubi_ainf_volume *av;
1346 			av = rb_entry(rb, struct ubi_ainf_volume, rb);
1350 				if (rb->rb_left == &av->rb)
1356 			destroy_av(ai, av, NULL);
1379 	struct ubi_ainf_volume *av;
1415 	ubi_rb_for_each_entry(rb1, av, &ai->volumes, rb) {
1416 		ubi_rb_for_each_entry(rb2, aeb, &av->root, u.rb)
1664 	struct ubi_ainf_volume *av;
1674 	ubi_rb_for_each_entry(rb1, av, &ai->volumes, rb) {
1686 		if (av->vol_id < 0 || av->highest_lnum < 0 ||
1687 		    av->leb_count < 0 || av->vol_type < 0 || av->used_ebs < 0 ||
1688 		    av->data_pad < 0 || av->last_data_size < 0) {
1693 		if (av->vol_id >= UBI_MAX_VOLUMES &&
1694 		    av->vol_id < UBI_INTERNAL_VOL_START) {
1699 		if (av->vol_id > ai->highest_vol_id) {
1701 				ai->highest_vol_id, av->vol_id);
1705 		if (av->vol_type != UBI_DYNAMIC_VOLUME &&
1706 		    av->vol_type != UBI_STATIC_VOLUME) {
1711 		if (av->data_pad > ubi->leb_size / 2) {
1717 		ubi_rb_for_each_entry(rb2, aeb, &av->root, u.rb) {
1746 			if (av->vol_type == UBI_STATIC_VOLUME) {
1747 				if (aeb->lnum >= av->used_ebs) {
1752 				if (av->used_ebs != 0) {
1758 			if (aeb->lnum > av->highest_lnum) {
1764 		if (av->leb_count != leb_count) {
1775 		if (aeb->lnum != av->highest_lnum) {
1788 	ubi_rb_for_each_entry(rb1, av, &ai->volumes, rb) {
1790 		ubi_rb_for_each_entry(rb2, aeb, &av->root, u.rb) {
1808 			if (av->vol_type != vol_type) {
1818 			if (av->vol_id != be32_to_cpu(vidh->vol_id)) {
1819 				ubi_err(ubi, "bad vol_id %d", av->vol_id);
1823 			if (av->compat != vidh->compat) {
1833 			if (av->used_ebs != be32_to_cpu(vidh->used_ebs)) {
1834 				ubi_err(ubi, "bad used_ebs %d", av->used_ebs);
1838 			if (av->data_pad != be32_to_cpu(vidh->data_pad)) {
1839 				ubi_err(ubi, "bad data_pad %d", av->data_pad);
1847 		if (av->highest_lnum != be32_to_cpu(vidh->lnum)) {
1848 			ubi_err(ubi, "bad highest_lnum %d", av->highest_lnum);
1852 		if (av->last_data_size != be32_to_cpu(vidh->data_size)) {
1854 				av->last_data_size);
1876 	ubi_rb_for_each_entry(rb1, av, &ai->volumes, rb)
1877 		ubi_rb_for_each_entry(rb2, aeb, &av->root, u.rb)
1907 	ubi_dump_av(av);
1911 	ubi_err(ubi, "bad attaching information about volume %d", av->vol_id);
1912 	ubi_dump_av(av);
1916 	ubi_err(ubi, "bad attaching information about volume %d", av->vol_id);
1917 	ubi_dump_av(av);