175 static ssize_t psz_zone_read_buffer(struct pstore_zone *zone, char *buf,  in psz_zone_read_buffer()  argument
178 	if (!buf || !zone || !zone->buffer)  in psz_zone_read_buffer()
183 	memcpy(buf, zone->buffer->data + off, len);  in psz_zone_read_buffer()
187 static int psz_zone_read_oldbuf(struct pstore_zone *zone, char *buf,  in psz_zone_read_oldbuf()  argument
190 	if (!buf || !zone || !zone->oldbuf)  in psz_zone_read_oldbuf()
195 	memcpy(buf, zone->oldbuf->data + off, len);  in psz_zone_read_oldbuf()
200 		enum psz_flush_mode flush_mode, const char *buf,  in psz_zone_write()  argument
205 	ssize_t (*writeop)(const char *buf, size_t bytes, loff_t pos);  in psz_zone_write()
212 	if (buf && wlen) {  in psz_zone_write()
213 		memcpy(zone->buffer->data + off, buf, wlen);  in psz_zone_write()
227 		if (unlikely(buf && wlen))  in psz_zone_write()
336 	struct psz_buffer *buf;  in psz_kmsg_recover_data()  local
362 		buf = zone->buffer;  in psz_kmsg_recover_data()
363 		rcnt = info->read((char *)buf, zone->buffer_size + sizeof(*buf),  in psz_kmsg_recover_data()
365 		if (rcnt != zone->buffer_size + sizeof(*buf))  in psz_kmsg_recover_data()
376 	struct psz_buffer *buf;  in psz_kmsg_recover_meta()  local
384 	char buffer_header[sizeof(*buf) + sizeof(*hdr)] = {0};  in psz_kmsg_recover_meta()
389 	len = sizeof(*buf) + sizeof(*hdr);  in psz_kmsg_recover_meta()
390 	buf = (struct psz_buffer *)buffer_header;  in psz_kmsg_recover_meta()
396 		rcnt = info->read((char *)buf, len, zone->off);  in psz_kmsg_recover_meta()
406 		if (buf->sig != zone->buffer->sig) {  in psz_kmsg_recover_meta()
411 		if (zone->buffer_size < atomic_read(&buf->datalen)) {  in psz_kmsg_recover_meta()
418 		hdr = (struct psz_kmsg_header *)buf->data;  in psz_kmsg_recover_meta()
442 		if (!atomic_read(&buf->datalen)) {  in psz_kmsg_recover_meta()
446 					atomic_read(&buf->datalen));  in psz_kmsg_recover_meta()
454 				zone->buffer_size, atomic_read(&buf->datalen));  in psz_kmsg_recover_meta()
486 	char *buf;  in psz_recover_zone()  local
538 	buf = (char *)oldbuf + sizeof(*oldbuf);  in psz_recover_zone()
544 	rcnt = info->read(buf, len - start, off + start);  in psz_recover_zone()
552 	rcnt = info->read(buf + len - start, start, off);  in psz_recover_zone()
775 		ret = psz_zone_write(zone, FLUSH_ALL, record->buf, size, hlen);  in psz_kmsg_write_record()
828 	char *buf;  in psz_record_write()  local
838 	buf = record->buf;  in psz_record_write()
840 		buf += cnt - zone->buffer_size;  in psz_record_write()
847 		psz_zone_write(zone, FLUSH_PART, buf, rem, start);  in psz_record_write()
848 		buf += rem;  in psz_record_write()
855 	psz_zone_write(zone, FLUSH_PART, buf, cnt, start);  in psz_record_write()
973 		char *buf = kasprintf(GFP_KERNEL, "%s: Total %d times\n",  in psz_kmsg_read()  local
976 		hlen = strlen(buf);  in psz_kmsg_read()
977 		record->buf = krealloc(buf, hlen + size, GFP_KERNEL);  in psz_kmsg_read()
978 		if (!record->buf) {  in psz_kmsg_read()
979 			kfree(buf);  in psz_kmsg_read()
983 		record->buf = kmalloc(size, GFP_KERNEL);  in psz_kmsg_read()
984 		if (!record->buf)  in psz_kmsg_read()
988 	size = psz_zone_read_buffer(zone, record->buf + hlen, size,  in psz_kmsg_read()
991 		kfree(record->buf);  in psz_kmsg_read()
1003 	struct psz_buffer *buf;  in psz_ftrace_read()  local
1012 	buf = (struct psz_buffer *)zone->oldbuf;  in psz_ftrace_read()
1013 	if (!buf)  in psz_ftrace_read()
1016 	ret = pstore_ftrace_combine_log(&record->buf, &record->size,  in psz_ftrace_read()
1017 			(char *)buf->data, atomic_read(&buf->datalen));  in psz_ftrace_read()
1034 	struct psz_buffer *buf;  in psz_record_read()  local
1039 	buf = (struct psz_buffer *)zone->oldbuf;  in psz_record_read()
1040 	if (!buf)  in psz_record_read()
1043 	len = atomic_read(&buf->datalen);  in psz_record_read()
1044 	record->buf = kmalloc(len, GFP_KERNEL);  in psz_record_read()
1045 	if (!record->buf)  in psz_record_read()
1048 	if (unlikely(psz_zone_read_oldbuf(zone, record->buf, len, 0))) {  in psz_record_read()
1049 		kfree(record->buf);  in psz_record_read()
1367 		cxt->pstore.buf = kzalloc(cxt->pstore.bufsize, GFP_KERNEL);  in register_pstore_zone()
1368 		if (!cxt->pstore.buf) {  in register_pstore_zone()
1410 	kfree(cxt->pstore.buf);  in register_pstore_zone()
1411 	cxt->pstore.buf = NULL;  in register_pstore_zone()
1444 	kfree(cxt->pstore.buf);  in unregister_pstore_zone()
1445 	cxt->pstore.buf = NULL;  in unregister_pstore_zone()