1 // SPDX-License-Identifier: GPL-2.0
5  *  Copyright (C) 2012-2013 Philippe De Muyter <phdm@macqel.be>
71  * @state
76  * Description:  Reads @count bytes from @state->disk into @buffer.
79 static size_t read_lba(struct parsed_partitions *state, u64 lba, u8 *buffer,  in read_lba()  argument
84 	if (!buffer || lba + count / 512 > get_capacity(state->disk) - 1ULL)  in read_lba()
90 		unsigned char *data = read_part_sector(state, lba++, &sect);  in read_lba()
99 		count -= copied;  in read_lba()
106  * @state
113 static struct pvd *alloc_pvd(struct parsed_partitions *state, u32 lba)  in alloc_pvd()  argument
116 	struct pvd *p;  in alloc_pvd()  local
118 	p = kmalloc(count, GFP_KERNEL);  in alloc_pvd()
119 	if (!p)  in alloc_pvd()
122 	if (read_lba(state, lba, (u8 *) p, count) < count) {  in alloc_pvd()
123 		kfree(p);  in alloc_pvd()
126 	return p;  in alloc_pvd()
131  * @state
138 static struct lvname *alloc_lvn(struct parsed_partitions *state, u32 lba)  in alloc_lvn()  argument
141 	struct lvname *p;  in alloc_lvn()  local
143 	p = kmalloc(count, GFP_KERNEL);  in alloc_lvn()
144 	if (!p)  in alloc_lvn()
147 	if (read_lba(state, lba, (u8 *) p, count) < count) {  in alloc_lvn()
148 		kfree(p);  in alloc_lvn()
151 	return p;  in alloc_lvn()
154 int aix_partition(struct parsed_partitions *state)  in aix_partition()  argument
172 	d = read_part_sector(state, 7, &sect);  in aix_partition()
174 		struct lvm_rec *p = (struct lvm_rec *)d;  in aix_partition()  local
175 		u16 lvm_version = be16_to_cpu(p->version);  in aix_partition()
179 			int pp_size_log2 = be16_to_cpu(p->pp_size);  in aix_partition()
186 			vgda_len = be32_to_cpu(p->vgda_len);  in aix_partition()
187 			vgda_sector = be32_to_cpu(p->vgda_psn[0]);  in aix_partition()
193 		strlcat(state->pp_buf, tmp, PAGE_SIZE);  in aix_partition()
196 	if (vgda_sector && (d = read_part_sector(state, vgda_sector, &sect))) {  in aix_partition()
197 		struct vgda *p = (struct vgda *)d;  in aix_partition()  local
199 		numlvs = be16_to_cpu(p->numlvs);  in aix_partition()
202 	lvip = kcalloc(state->limit, sizeof(struct lv_info), GFP_KERNEL);  in aix_partition()
205 	if (numlvs && (d = read_part_sector(state, vgda_sector + 1, &sect))) {  in aix_partition()
206 		struct lvd *p = (struct lvd *)d;  in aix_partition()  local
209 		n = alloc_lvn(state, vgda_sector + vgda_len - 33);  in aix_partition()
213 			for (i = 0; foundlvs < numlvs && i < state->limit; i += 1) {  in aix_partition()
214 				lvip[i].pps_per_lv = be16_to_cpu(p[i].num_lps);  in aix_partition()
219 			pvd = alloc_pvd(state, vgda_sector + 17);  in aix_partition()
224 		int numpps = be16_to_cpu(pvd->pp_count);  in aix_partition()
225 		int psn_part1 = be32_to_cpu(pvd->psn_part1);  in aix_partition()
227 		int cur_lv_ix = -1;  in aix_partition()
232 			struct ppe *p = pvd->ppe + i;  in aix_partition()  local
235 			lp_ix = be16_to_cpu(p->lp_ix);  in aix_partition()
240 			lv_ix = be16_to_cpu(p->lv_ix) - 1;  in aix_partition()
241 			if (lv_ix >= state->limit) {  in aix_partition()
242 				cur_lv_ix = -1;  in aix_partition()
256 				put_partition(state, lv_ix + 1,  in aix_partition()
257 				  (i + 1 - lp_ix) * pp_blocks_size + psn_part1,  in aix_partition()
261 				strlcat(state->pp_buf, tmp, PAGE_SIZE);  in aix_partition()
268 		for (i = 0; i < state->limit; i += 1)  in aix_partition()