Lines Matching refs:sb
19 struct ext4_super_block sb;
39 if (read(fd, &sb, sizeof(sb)) != sizeof(sb)) {
44 if (sb.s_magic != 0xEF53) {
50 if ((sb.s_log_block_size != 1) && (sb.s_log_block_size != 2)) {
55 block_size = 1 << (10 + sb.s_log_block_size);
56 num_bgs = DIV_ROUND_UP(sb.s_blocks_count_lo, sb.s_blocks_per_group);
58 if (sb.s_desc_size != sizeof(struct ext2_group_desc)) {
60 me, sb.s_desc_size);