prz               115 fs/pstore/ram.c 	struct persistent_ram_zone *prz;
prz               121 fs/pstore/ram.c 	prz = przs[id];
prz               122 fs/pstore/ram.c 	if (!prz)
prz               126 fs/pstore/ram.c 	if (prz->type == PSTORE_TYPE_DMESG)
prz               127 fs/pstore/ram.c 		persistent_ram_save_old(prz);
prz               129 fs/pstore/ram.c 	if (!persistent_ram_old_size(prz))
prz               132 fs/pstore/ram.c 	record->type = prz->type;
prz               135 fs/pstore/ram.c 	return prz;
prz               165 fs/pstore/ram.c static bool prz_ok(struct persistent_ram_zone *prz)
prz               167 fs/pstore/ram.c 	return !!prz && !!(persistent_ram_old_size(prz) +
prz               168 fs/pstore/ram.c 			   persistent_ram_ecc_string(prz, NULL, 0));
prz               227 fs/pstore/ram.c 	struct persistent_ram_zone *prz = NULL;
prz               241 fs/pstore/ram.c 	while (cxt->dump_read_cnt < cxt->max_dump_cnt && !prz) {
prz               242 fs/pstore/ram.c 		prz = ramoops_get_next_prz(cxt->dprzs, cxt->dump_read_cnt++,
prz               244 fs/pstore/ram.c 		if (!prz_ok(prz))
prz               246 fs/pstore/ram.c 		header_length = ramoops_read_kmsg_hdr(persistent_ram_old(prz),
prz               251 fs/pstore/ram.c 			persistent_ram_free_old(prz);
prz               252 fs/pstore/ram.c 			persistent_ram_zap(prz);
prz               253 fs/pstore/ram.c 			prz = NULL;
prz               257 fs/pstore/ram.c 	if (!prz_ok(prz) && !cxt->console_read_cnt++)
prz               258 fs/pstore/ram.c 		prz = ramoops_get_next_prz(&cxt->cprz, 0 /* single */, record);
prz               260 fs/pstore/ram.c 	if (!prz_ok(prz) && !cxt->pmsg_read_cnt++)
prz               261 fs/pstore/ram.c 		prz = ramoops_get_next_prz(&cxt->mprz, 0 /* single */, record);
prz               264 fs/pstore/ram.c 	if (!prz_ok(prz)) {
prz               267 fs/pstore/ram.c 			prz = ramoops_get_next_prz(cxt->fprzs, 0 /* single */,
prz               280 fs/pstore/ram.c 			prz = tmp_prz;
prz               302 fs/pstore/ram.c 	if (!prz_ok(prz)) {
prz               307 fs/pstore/ram.c 	size = persistent_ram_old_size(prz) - header_length;
prz               310 fs/pstore/ram.c 	record->ecc_notice_size = persistent_ram_ecc_string(prz, NULL, 0);
prz               318 fs/pstore/ram.c 	memcpy(record->buf, (char *)persistent_ram_old(prz) + header_length,
prz               321 fs/pstore/ram.c 	persistent_ram_ecc_string(prz, record->buf + size,
prz               326 fs/pstore/ram.c 		kfree(prz->old_log);
prz               327 fs/pstore/ram.c 		kfree(prz);
prz               333 fs/pstore/ram.c static size_t ramoops_write_kmsg_hdr(struct persistent_ram_zone *prz,
prz               344 fs/pstore/ram.c 	persistent_ram_write(prz, hdr, len);
prz               352 fs/pstore/ram.c 	struct persistent_ram_zone *prz;
prz               408 fs/pstore/ram.c 	prz = cxt->dprzs[cxt->dump_write_cnt];
prz               419 fs/pstore/ram.c 	persistent_ram_zap(prz);
prz               422 fs/pstore/ram.c 	hlen = ramoops_write_kmsg_hdr(prz, record);
prz               427 fs/pstore/ram.c 	if (size + hlen > prz->buffer_size)
prz               428 fs/pstore/ram.c 		size = prz->buffer_size - hlen;
prz               429 fs/pstore/ram.c 	persistent_ram_write(prz, record->buf, size);
prz               453 fs/pstore/ram.c 	struct persistent_ram_zone *prz;
prz               459 fs/pstore/ram.c 		prz = cxt->dprzs[record->id];
prz               462 fs/pstore/ram.c 		prz = cxt->cprz;
prz               467 fs/pstore/ram.c 		prz = cxt->fprzs[record->id];
prz               470 fs/pstore/ram.c 		prz = cxt->mprz;
prz               476 fs/pstore/ram.c 	persistent_ram_free_old(prz);
prz               477 fs/pstore/ram.c 	persistent_ram_zap(prz);
prz               614 fs/pstore/ram.c 			    struct persistent_ram_zone **prz,
prz               630 fs/pstore/ram.c 	*prz = persistent_ram_new(*paddr, sz, sig, &cxt->ecc_info,
prz               633 fs/pstore/ram.c 	if (IS_ERR(*prz)) {
prz               634 fs/pstore/ram.c 		int err = PTR_ERR(*prz);
prz               642 fs/pstore/ram.c 	(*prz)->type = pstore_name_to_type(name);
prz                42 fs/pstore/ram_core.c static inline size_t buffer_size(struct persistent_ram_zone *prz)
prz                44 fs/pstore/ram_core.c 	return atomic_read(&prz->buffer->size);
prz                47 fs/pstore/ram_core.c static inline size_t buffer_start(struct persistent_ram_zone *prz)
prz                49 fs/pstore/ram_core.c 	return atomic_read(&prz->buffer->start);
prz                53 fs/pstore/ram_core.c static size_t buffer_start_add(struct persistent_ram_zone *prz, size_t a)
prz                59 fs/pstore/ram_core.c 	if (!(prz->flags & PRZ_FLAG_NO_LOCK))
prz                60 fs/pstore/ram_core.c 		raw_spin_lock_irqsave(&prz->buffer_lock, flags);
prz                62 fs/pstore/ram_core.c 	old = atomic_read(&prz->buffer->start);
prz                64 fs/pstore/ram_core.c 	while (unlikely(new >= prz->buffer_size))
prz                65 fs/pstore/ram_core.c 		new -= prz->buffer_size;
prz                66 fs/pstore/ram_core.c 	atomic_set(&prz->buffer->start, new);
prz                68 fs/pstore/ram_core.c 	if (!(prz->flags & PRZ_FLAG_NO_LOCK))
prz                69 fs/pstore/ram_core.c 		raw_spin_unlock_irqrestore(&prz->buffer_lock, flags);
prz                75 fs/pstore/ram_core.c static void buffer_size_add(struct persistent_ram_zone *prz, size_t a)
prz                81 fs/pstore/ram_core.c 	if (!(prz->flags & PRZ_FLAG_NO_LOCK))
prz                82 fs/pstore/ram_core.c 		raw_spin_lock_irqsave(&prz->buffer_lock, flags);
prz                84 fs/pstore/ram_core.c 	old = atomic_read(&prz->buffer->size);
prz                85 fs/pstore/ram_core.c 	if (old == prz->buffer_size)
prz                89 fs/pstore/ram_core.c 	if (new > prz->buffer_size)
prz                90 fs/pstore/ram_core.c 		new = prz->buffer_size;
prz                91 fs/pstore/ram_core.c 	atomic_set(&prz->buffer->size, new);
prz                94 fs/pstore/ram_core.c 	if (!(prz->flags & PRZ_FLAG_NO_LOCK))
prz                95 fs/pstore/ram_core.c 		raw_spin_unlock_irqrestore(&prz->buffer_lock, flags);
prz                98 fs/pstore/ram_core.c static void notrace persistent_ram_encode_rs8(struct persistent_ram_zone *prz,
prz               104 fs/pstore/ram_core.c 	memset(prz->ecc_info.par, 0,
prz               105 fs/pstore/ram_core.c 	       prz->ecc_info.ecc_size * sizeof(prz->ecc_info.par[0]));
prz               106 fs/pstore/ram_core.c 	encode_rs8(prz->rs_decoder, data, len, prz->ecc_info.par, 0);
prz               107 fs/pstore/ram_core.c 	for (i = 0; i < prz->ecc_info.ecc_size; i++)
prz               108 fs/pstore/ram_core.c 		ecc[i] = prz->ecc_info.par[i];
prz               111 fs/pstore/ram_core.c static int persistent_ram_decode_rs8(struct persistent_ram_zone *prz,
prz               116 fs/pstore/ram_core.c 	for (i = 0; i < prz->ecc_info.ecc_size; i++)
prz               117 fs/pstore/ram_core.c 		prz->ecc_info.par[i] = ecc[i];
prz               118 fs/pstore/ram_core.c 	return decode_rs8(prz->rs_decoder, data, prz->ecc_info.par, len,
prz               122 fs/pstore/ram_core.c static void notrace persistent_ram_update_ecc(struct persistent_ram_zone *prz,
prz               125 fs/pstore/ram_core.c 	struct persistent_ram_buffer *buffer = prz->buffer;
prz               126 fs/pstore/ram_core.c 	uint8_t *buffer_end = buffer->data + prz->buffer_size;
prz               129 fs/pstore/ram_core.c 	int ecc_block_size = prz->ecc_info.block_size;
prz               130 fs/pstore/ram_core.c 	int ecc_size = prz->ecc_info.ecc_size;
prz               137 fs/pstore/ram_core.c 	par = prz->par_buffer + (start / ecc_block_size) * ecc_size;
prz               142 fs/pstore/ram_core.c 		persistent_ram_encode_rs8(prz, block, size, par);
prz               148 fs/pstore/ram_core.c static void persistent_ram_update_header_ecc(struct persistent_ram_zone *prz)
prz               150 fs/pstore/ram_core.c 	struct persistent_ram_buffer *buffer = prz->buffer;
prz               152 fs/pstore/ram_core.c 	if (!prz->ecc_info.ecc_size)
prz               155 fs/pstore/ram_core.c 	persistent_ram_encode_rs8(prz, (uint8_t *)buffer, sizeof(*buffer),
prz               156 fs/pstore/ram_core.c 				  prz->par_header);
prz               159 fs/pstore/ram_core.c static void persistent_ram_ecc_old(struct persistent_ram_zone *prz)
prz               161 fs/pstore/ram_core.c 	struct persistent_ram_buffer *buffer = prz->buffer;
prz               165 fs/pstore/ram_core.c 	if (!prz->ecc_info.ecc_size)
prz               169 fs/pstore/ram_core.c 	par = prz->par_buffer;
prz               170 fs/pstore/ram_core.c 	while (block < buffer->data + buffer_size(prz)) {
prz               172 fs/pstore/ram_core.c 		int size = prz->ecc_info.block_size;
prz               173 fs/pstore/ram_core.c 		if (block + size > buffer->data + prz->buffer_size)
prz               174 fs/pstore/ram_core.c 			size = buffer->data + prz->buffer_size - block;
prz               175 fs/pstore/ram_core.c 		numerr = persistent_ram_decode_rs8(prz, block, size, par);
prz               178 fs/pstore/ram_core.c 			prz->corrected_bytes += numerr;
prz               181 fs/pstore/ram_core.c 			prz->bad_blocks++;
prz               183 fs/pstore/ram_core.c 		block += prz->ecc_info.block_size;
prz               184 fs/pstore/ram_core.c 		par += prz->ecc_info.ecc_size;
prz               188 fs/pstore/ram_core.c static int persistent_ram_init_ecc(struct persistent_ram_zone *prz,
prz               192 fs/pstore/ram_core.c 	struct persistent_ram_buffer *buffer = prz->buffer;
prz               199 fs/pstore/ram_core.c 	prz->ecc_info.block_size = ecc_info->block_size ?: 128;
prz               200 fs/pstore/ram_core.c 	prz->ecc_info.ecc_size = ecc_info->ecc_size ?: 16;
prz               201 fs/pstore/ram_core.c 	prz->ecc_info.symsize = ecc_info->symsize ?: 8;
prz               202 fs/pstore/ram_core.c 	prz->ecc_info.poly = ecc_info->poly ?: 0x11d;
prz               204 fs/pstore/ram_core.c 	ecc_blocks = DIV_ROUND_UP(prz->buffer_size - prz->ecc_info.ecc_size,
prz               205 fs/pstore/ram_core.c 				  prz->ecc_info.block_size +
prz               206 fs/pstore/ram_core.c 				  prz->ecc_info.ecc_size);
prz               207 fs/pstore/ram_core.c 	ecc_total = (ecc_blocks + 1) * prz->ecc_info.ecc_size;
prz               208 fs/pstore/ram_core.c 	if (ecc_total >= prz->buffer_size) {
prz               210 fs/pstore/ram_core.c 		       __func__, prz->ecc_info.ecc_size,
prz               211 fs/pstore/ram_core.c 		       ecc_total, prz->buffer_size);
prz               215 fs/pstore/ram_core.c 	prz->buffer_size -= ecc_total;
prz               216 fs/pstore/ram_core.c 	prz->par_buffer = buffer->data + prz->buffer_size;
prz               217 fs/pstore/ram_core.c 	prz->par_header = prz->par_buffer +
prz               218 fs/pstore/ram_core.c 			  ecc_blocks * prz->ecc_info.ecc_size;
prz               224 fs/pstore/ram_core.c 	prz->rs_decoder = init_rs(prz->ecc_info.symsize, prz->ecc_info.poly,
prz               225 fs/pstore/ram_core.c 				  0, 1, prz->ecc_info.ecc_size);
prz               226 fs/pstore/ram_core.c 	if (prz->rs_decoder == NULL) {
prz               232 fs/pstore/ram_core.c 	prz->ecc_info.par = kmalloc_array(prz->ecc_info.ecc_size,
prz               233 fs/pstore/ram_core.c 					  sizeof(*prz->ecc_info.par),
prz               235 fs/pstore/ram_core.c 	if (!prz->ecc_info.par) {
prz               240 fs/pstore/ram_core.c 	prz->corrected_bytes = 0;
prz               241 fs/pstore/ram_core.c 	prz->bad_blocks = 0;
prz               243 fs/pstore/ram_core.c 	numerr = persistent_ram_decode_rs8(prz, buffer, sizeof(*buffer),
prz               244 fs/pstore/ram_core.c 					   prz->par_header);
prz               247 fs/pstore/ram_core.c 		prz->corrected_bytes += numerr;
prz               250 fs/pstore/ram_core.c 		prz->bad_blocks++;
prz               256 fs/pstore/ram_core.c ssize_t persistent_ram_ecc_string(struct persistent_ram_zone *prz,
prz               261 fs/pstore/ram_core.c 	if (!prz->ecc_info.ecc_size)
prz               264 fs/pstore/ram_core.c 	if (prz->corrected_bytes || prz->bad_blocks)
prz               267 fs/pstore/ram_core.c 			prz->corrected_bytes, prz->bad_blocks);
prz               274 fs/pstore/ram_core.c static void notrace persistent_ram_update(struct persistent_ram_zone *prz,
prz               277 fs/pstore/ram_core.c 	struct persistent_ram_buffer *buffer = prz->buffer;
prz               279 fs/pstore/ram_core.c 	persistent_ram_update_ecc(prz, start, count);
prz               282 fs/pstore/ram_core.c static int notrace persistent_ram_update_user(struct persistent_ram_zone *prz,
prz               285 fs/pstore/ram_core.c 	struct persistent_ram_buffer *buffer = prz->buffer;
prz               288 fs/pstore/ram_core.c 	persistent_ram_update_ecc(prz, start, count);
prz               292 fs/pstore/ram_core.c void persistent_ram_save_old(struct persistent_ram_zone *prz)
prz               294 fs/pstore/ram_core.c 	struct persistent_ram_buffer *buffer = prz->buffer;
prz               295 fs/pstore/ram_core.c 	size_t size = buffer_size(prz);
prz               296 fs/pstore/ram_core.c 	size_t start = buffer_start(prz);
prz               301 fs/pstore/ram_core.c 	if (!prz->old_log) {
prz               302 fs/pstore/ram_core.c 		persistent_ram_ecc_old(prz);
prz               303 fs/pstore/ram_core.c 		prz->old_log = kmalloc(size, GFP_KERNEL);
prz               305 fs/pstore/ram_core.c 	if (!prz->old_log) {
prz               310 fs/pstore/ram_core.c 	prz->old_log_size = size;
prz               311 fs/pstore/ram_core.c 	memcpy_fromio(prz->old_log, &buffer->data[start], size - start);
prz               312 fs/pstore/ram_core.c 	memcpy_fromio(prz->old_log + size - start, &buffer->data[0], start);
prz               315 fs/pstore/ram_core.c int notrace persistent_ram_write(struct persistent_ram_zone *prz,
prz               322 fs/pstore/ram_core.c 	if (unlikely(c > prz->buffer_size)) {
prz               323 fs/pstore/ram_core.c 		s += c - prz->buffer_size;
prz               324 fs/pstore/ram_core.c 		c = prz->buffer_size;
prz               327 fs/pstore/ram_core.c 	buffer_size_add(prz, c);
prz               329 fs/pstore/ram_core.c 	start = buffer_start_add(prz, c);
prz               331 fs/pstore/ram_core.c 	rem = prz->buffer_size - start;
prz               333 fs/pstore/ram_core.c 		persistent_ram_update(prz, s, start, rem);
prz               338 fs/pstore/ram_core.c 	persistent_ram_update(prz, s, start, c);
prz               340 fs/pstore/ram_core.c 	persistent_ram_update_header_ecc(prz);
prz               345 fs/pstore/ram_core.c int notrace persistent_ram_write_user(struct persistent_ram_zone *prz,
prz               353 fs/pstore/ram_core.c 	if (unlikely(c > prz->buffer_size)) {
prz               354 fs/pstore/ram_core.c 		s += c - prz->buffer_size;
prz               355 fs/pstore/ram_core.c 		c = prz->buffer_size;
prz               358 fs/pstore/ram_core.c 	buffer_size_add(prz, c);
prz               360 fs/pstore/ram_core.c 	start = buffer_start_add(prz, c);
prz               362 fs/pstore/ram_core.c 	rem = prz->buffer_size - start;
prz               364 fs/pstore/ram_core.c 		ret = persistent_ram_update_user(prz, s, start, rem);
prz               370 fs/pstore/ram_core.c 		ret = persistent_ram_update_user(prz, s, start, c);
prz               372 fs/pstore/ram_core.c 	persistent_ram_update_header_ecc(prz);
prz               377 fs/pstore/ram_core.c size_t persistent_ram_old_size(struct persistent_ram_zone *prz)
prz               379 fs/pstore/ram_core.c 	return prz->old_log_size;
prz               382 fs/pstore/ram_core.c void *persistent_ram_old(struct persistent_ram_zone *prz)
prz               384 fs/pstore/ram_core.c 	return prz->old_log;
prz               387 fs/pstore/ram_core.c void persistent_ram_free_old(struct persistent_ram_zone *prz)
prz               389 fs/pstore/ram_core.c 	kfree(prz->old_log);
prz               390 fs/pstore/ram_core.c 	prz->old_log = NULL;
prz               391 fs/pstore/ram_core.c 	prz->old_log_size = 0;
prz               394 fs/pstore/ram_core.c void persistent_ram_zap(struct persistent_ram_zone *prz)
prz               396 fs/pstore/ram_core.c 	atomic_set(&prz->buffer->start, 0);
prz               397 fs/pstore/ram_core.c 	atomic_set(&prz->buffer->size, 0);
prz               398 fs/pstore/ram_core.c 	persistent_ram_update_header_ecc(prz);
prz               467 fs/pstore/ram_core.c 		struct persistent_ram_zone *prz, int memtype)
prz               469 fs/pstore/ram_core.c 	prz->paddr = start;
prz               470 fs/pstore/ram_core.c 	prz->size = size;
prz               473 fs/pstore/ram_core.c 		prz->vaddr = persistent_ram_vmap(start, size, memtype);
prz               475 fs/pstore/ram_core.c 		prz->vaddr = persistent_ram_iomap(start, size, memtype,
prz               476 fs/pstore/ram_core.c 						  prz->label);
prz               478 fs/pstore/ram_core.c 	if (!prz->vaddr) {
prz               484 fs/pstore/ram_core.c 	prz->buffer = prz->vaddr;
prz               485 fs/pstore/ram_core.c 	prz->buffer_size = size - sizeof(struct persistent_ram_buffer);
prz               490 fs/pstore/ram_core.c static int persistent_ram_post_init(struct persistent_ram_zone *prz, u32 sig,
prz               494 fs/pstore/ram_core.c 	bool zap = !!(prz->flags & PRZ_FLAG_ZAP_OLD);
prz               496 fs/pstore/ram_core.c 	ret = persistent_ram_init_ecc(prz, ecc_info);
prz               498 fs/pstore/ram_core.c 		pr_warn("ECC failed %s\n", prz->label);
prz               504 fs/pstore/ram_core.c 	if (prz->buffer->sig == sig) {
prz               505 fs/pstore/ram_core.c 		if (buffer_size(prz) == 0) {
prz               510 fs/pstore/ram_core.c 		if (buffer_size(prz) > prz->buffer_size ||
prz               511 fs/pstore/ram_core.c 		    buffer_start(prz) > buffer_size(prz)) {
prz               513 fs/pstore/ram_core.c 				buffer_size(prz), buffer_start(prz));
prz               517 fs/pstore/ram_core.c 				 buffer_size(prz), buffer_start(prz));
prz               518 fs/pstore/ram_core.c 			persistent_ram_save_old(prz);
prz               522 fs/pstore/ram_core.c 			 prz->buffer->sig);
prz               523 fs/pstore/ram_core.c 		prz->buffer->sig = sig;
prz               529 fs/pstore/ram_core.c 		persistent_ram_zap(prz);
prz               534 fs/pstore/ram_core.c void persistent_ram_free(struct persistent_ram_zone *prz)
prz               536 fs/pstore/ram_core.c 	if (!prz)
prz               539 fs/pstore/ram_core.c 	if (prz->vaddr) {
prz               540 fs/pstore/ram_core.c 		if (pfn_valid(prz->paddr >> PAGE_SHIFT)) {
prz               542 fs/pstore/ram_core.c 			vunmap(prz->vaddr - offset_in_page(prz->paddr));
prz               544 fs/pstore/ram_core.c 			iounmap(prz->vaddr);
prz               545 fs/pstore/ram_core.c 			release_mem_region(prz->paddr, prz->size);
prz               547 fs/pstore/ram_core.c 		prz->vaddr = NULL;
prz               549 fs/pstore/ram_core.c 	if (prz->rs_decoder) {
prz               550 fs/pstore/ram_core.c 		free_rs(prz->rs_decoder);
prz               551 fs/pstore/ram_core.c 		prz->rs_decoder = NULL;
prz               553 fs/pstore/ram_core.c 	kfree(prz->ecc_info.par);
prz               554 fs/pstore/ram_core.c 	prz->ecc_info.par = NULL;
prz               556 fs/pstore/ram_core.c 	persistent_ram_free_old(prz);
prz               557 fs/pstore/ram_core.c 	kfree(prz->label);
prz               558 fs/pstore/ram_core.c 	kfree(prz);
prz               565 fs/pstore/ram_core.c 	struct persistent_ram_zone *prz;
prz               568 fs/pstore/ram_core.c 	prz = kzalloc(sizeof(struct persistent_ram_zone), GFP_KERNEL);
prz               569 fs/pstore/ram_core.c 	if (!prz) {
prz               575 fs/pstore/ram_core.c 	raw_spin_lock_init(&prz->buffer_lock);
prz               576 fs/pstore/ram_core.c 	prz->flags = flags;
prz               577 fs/pstore/ram_core.c 	prz->label = kstrdup(label, GFP_KERNEL);
prz               579 fs/pstore/ram_core.c 	ret = persistent_ram_buffer_map(start, size, prz, memtype);
prz               583 fs/pstore/ram_core.c 	ret = persistent_ram_post_init(prz, sig, ecc_info);
prz               588 fs/pstore/ram_core.c 		prz->label, prz->size, (unsigned long long)prz->paddr,
prz               589 fs/pstore/ram_core.c 		sizeof(*prz->buffer), prz->buffer_size,
prz               590 fs/pstore/ram_core.c 		prz->size - sizeof(*prz->buffer) - prz->buffer_size,
prz               591 fs/pstore/ram_core.c 		prz->ecc_info.ecc_size, prz->ecc_info.block_size);
prz               593 fs/pstore/ram_core.c 	return prz;
prz               595 fs/pstore/ram_core.c 	persistent_ram_free(prz);
prz               105 include/linux/pstore_ram.h void persistent_ram_free(struct persistent_ram_zone *prz);
prz               106 include/linux/pstore_ram.h void persistent_ram_zap(struct persistent_ram_zone *prz);
prz               108 include/linux/pstore_ram.h int persistent_ram_write(struct persistent_ram_zone *prz, const void *s,
prz               110 include/linux/pstore_ram.h int persistent_ram_write_user(struct persistent_ram_zone *prz,
prz               113 include/linux/pstore_ram.h void persistent_ram_save_old(struct persistent_ram_zone *prz);
prz               114 include/linux/pstore_ram.h size_t persistent_ram_old_size(struct persistent_ram_zone *prz);
prz               115 include/linux/pstore_ram.h void *persistent_ram_old(struct persistent_ram_zone *prz);
prz               116 include/linux/pstore_ram.h void persistent_ram_free_old(struct persistent_ram_zone *prz);
prz               117 include/linux/pstore_ram.h ssize_t persistent_ram_ecc_string(struct persistent_ram_zone *prz,