208 static int btt_log_group_read(struct arena_info *arena, u32 lane,  in btt_log_group_read()  argument
212 			arena->logoff + (lane * LOG_GRP_SIZE), log,  in btt_log_group_read()
329 static int btt_log_read(struct arena_info *arena, u32 lane,  in btt_log_read()  argument
336 	ret = btt_log_group_read(arena, lane, &log);  in btt_log_read()
343 				"log corruption (%d): lane %d seq [%d, %d]\n",  in btt_log_read()
344 				old_ent, lane, log.ent[arena->log_index[0]].seq,  in btt_log_read()
363 static int __btt_log_write(struct arena_info *arena, u32 lane,  in __btt_log_write()  argument
372 	ns_off = arena->logoff + (lane * LOG_GRP_SIZE) +  in __btt_log_write()
384 static int btt_flog_write(struct arena_info *arena, u32 lane, u32 sub,  in btt_flog_write()  argument
389 	ret = __btt_log_write(arena, lane, sub, ent, NVDIMM_IO_ATOMIC);  in btt_flog_write()
394 	arena->freelist[lane].sub = 1 - arena->freelist[lane].sub;  in btt_flog_write()
395 	if (++(arena->freelist[lane].seq) == 4)  in btt_flog_write()
396 		arena->freelist[lane].seq = 1;  in btt_flog_write()
398 		arena->freelist[lane].has_err = 1;  in btt_flog_write()
399 	arena->freelist[lane].block = ent_lba(le32_to_cpu(ent->old_map));  in btt_flog_write()
507 static int arena_clear_freelist_error(struct arena_info *arena, u32 lane)  in arena_clear_freelist_error()  argument
511 	if (arena->freelist[lane].has_err) {  in arena_clear_freelist_error()
513 		u32 lba = arena->freelist[lane].block;  in arena_clear_freelist_error()
529 				arena->freelist[lane].has_err = 0;  in arena_clear_freelist_error()
674 					 * lane never got used and it is still  in log_set_indices()
1198 	u32 lane = 0, premap, postmap;  in btt_read_pg()  local
1203 		lane = nd_region_acquire_lane(btt->nd_region);  in btt_read_pg()
1235 			arena->rtt[lane] = RTT_VALID | postmap;  in btt_read_pg()
1272 		arena->rtt[lane] = RTT_INVALID;  in btt_read_pg()
1273 		nd_region_release_lane(btt->nd_region, lane);  in btt_read_pg()
1283 	arena->rtt[lane] = RTT_INVALID;  in btt_read_pg()
1285 	nd_region_release_lane(btt->nd_region, lane);  in btt_read_pg()
1310 	u32 premap = 0, old_postmap, new_postmap, lane = 0, i;  in btt_write_pg()  local
1319 		lane = nd_region_acquire_lane(btt->nd_region);  in btt_write_pg()
1331 		if (btt_is_badblock(btt, arena, arena->freelist[lane].block))  in btt_write_pg()
1332 			arena->freelist[lane].has_err = 1;  in btt_write_pg()
1335 				|| arena->freelist[lane].has_err) {  in btt_write_pg()
1336 			nd_region_release_lane(btt->nd_region, lane);  in btt_write_pg()
1338 			ret = arena_clear_freelist_error(arena, lane);  in btt_write_pg()
1342 			/* OK to acquire a different lane/free block */  in btt_write_pg()
1346 		new_postmap = arena->freelist[lane].block;  in btt_write_pg()
1385 		log.seq = cpu_to_le32(arena->freelist[lane].seq);  in btt_write_pg()
1386 		sub = arena->freelist[lane].sub;  in btt_write_pg()
1387 		ret = btt_flog_write(arena, lane, sub, &log);  in btt_write_pg()
1397 		nd_region_release_lane(btt->nd_region, lane);  in btt_write_pg()
1400 			ret = arena_clear_freelist_error(arena, lane);  in btt_write_pg()
1415 	nd_region_release_lane(btt->nd_region, lane);  in btt_write_pg()