244 	struct ppl_header *pplhdr;  in ppl_new_iounit()  local
262 	pplhdr = page_address(io->header_page);  in ppl_new_iounit()
263 	clear_page(pplhdr);  in ppl_new_iounit()
264 	memset(pplhdr->reserved, 0xff, PPL_HDR_RESERVED);  in ppl_new_iounit()
265 	pplhdr->signature = cpu_to_le32(ppl_conf->signature);  in ppl_new_iounit()
268 	pplhdr->generation = cpu_to_le64(io->seq);  in ppl_new_iounit()
277 	struct ppl_header *pplhdr;  in ppl_log_stripe()  local
319 	pplhdr = page_address(io->header_page);  in ppl_log_stripe()
323 				&pplhdr->entries[io->entries_count - 1];  in ppl_log_stripe()
343 		e = &pplhdr->entries[io->entries_count++];  in ppl_log_stripe()
440 	struct ppl_header *pplhdr = page_address(io->header_page);  in ppl_submit_iounit()  local
453 		struct ppl_header_entry *e = &pplhdr->entries[i];  in ppl_submit_iounit()
464 	pplhdr->entries_count = cpu_to_le32(io->entries_count);  in ppl_submit_iounit()
465 	pplhdr->checksum = cpu_to_le32(~crc32c_le(~0, pplhdr, PPL_HEADER_SIZE));  in ppl_submit_iounit()
975 static int ppl_recover(struct ppl_log *log, struct ppl_header *pplhdr,  in ppl_recover()  argument
992 	for (i = 0; i < le32_to_cpu(pplhdr->entries_count); i++) {  in ppl_recover()
993 		struct ppl_header_entry *e = &pplhdr->entries[i];  in ppl_recover()
1054 	struct ppl_header *pplhdr;  in ppl_write_empty_header()  local
1065 	pplhdr = page_address(page);  in ppl_write_empty_header()
1069 	memset(pplhdr->reserved, 0xff, PPL_HDR_RESERVED);  in ppl_write_empty_header()
1070 	pplhdr->signature = cpu_to_le32(log->ppl_conf->signature);  in ppl_write_empty_header()
1071 	pplhdr->checksum = cpu_to_le32(~crc32c_le(~0, pplhdr, PAGE_SIZE));  in ppl_write_empty_header()
1090 	struct ppl_header *pplhdr = NULL, *prev_pplhdr = NULL;  in ppl_load_distributed()  local
1117 			pplhdr = NULL;  in ppl_load_distributed()
1120 		pplhdr = page_address(page);  in ppl_load_distributed()
1123 		crc_stored = le32_to_cpu(pplhdr->checksum);  in ppl_load_distributed()
1124 		pplhdr->checksum = 0;  in ppl_load_distributed()
1125 		crc = ~crc32c_le(~0, pplhdr, PAGE_SIZE);  in ppl_load_distributed()
1131 			pplhdr = prev_pplhdr;  in ppl_load_distributed()
1136 		signature = le32_to_cpu(pplhdr->signature);  in ppl_load_distributed()
1148 			pplhdr = prev_pplhdr;  in ppl_load_distributed()
1154 		    le64_to_cpu(pplhdr->generation)) {  in ppl_load_distributed()
1156 			pplhdr = prev_pplhdr;  in ppl_load_distributed()
1162 		prev_pplhdr = pplhdr;  in ppl_load_distributed()
1169 		for (i = 0; i < le32_to_cpu(pplhdr->entries_count); i++)  in ppl_load_distributed()
1171 			    le32_to_cpu(pplhdr->entries[i].pp_size) >> 9;  in ppl_load_distributed()
1176 	if (!pplhdr)  in ppl_load_distributed()
1181 		    le64_to_cpu(pplhdr->generation));  in ppl_load_distributed()
1184 	if (pplhdr && !mddev->pers && mddev->recovery_cp != MaxSector)  in ppl_load_distributed()
1185 		ret = ppl_recover(log, pplhdr, pplhdr_offset);  in ppl_load_distributed()