Lines Matching refs:sb
20 int ext4_resize_begin(struct super_block *sb) in ext4_resize_begin() argument
22 struct ext4_sb_info *sbi = EXT4_SB(sb); in ext4_resize_begin()
34 le32_to_cpu(EXT4_SB(sb)->s_es->s_first_data_block)) { in ext4_resize_begin()
35 ext4_warning(sb, "won't resize using backup superblock at %llu", in ext4_resize_begin()
36 (unsigned long long)EXT4_SB(sb)->s_sbh->b_blocknr); in ext4_resize_begin()
44 if (EXT4_SB(sb)->s_mount_state & EXT4_ERROR_FS) { in ext4_resize_begin()
45 ext4_warning(sb, "There are errors in the filesystem, " in ext4_resize_begin()
51 &EXT4_SB(sb)->s_ext4_flags)) in ext4_resize_begin()
57 void ext4_resize_end(struct super_block *sb) in ext4_resize_end() argument
59 clear_bit_unlock(EXT4_FLAGS_RESIZING, &EXT4_SB(sb)->s_ext4_flags); in ext4_resize_end()
63 static ext4_group_t ext4_meta_bg_first_group(struct super_block *sb, in ext4_meta_bg_first_group() argument
65 return (group >> EXT4_DESC_PER_BLOCK_BITS(sb)) << in ext4_meta_bg_first_group()
66 EXT4_DESC_PER_BLOCK_BITS(sb); in ext4_meta_bg_first_group()
69 static ext4_fsblk_t ext4_meta_bg_first_block_no(struct super_block *sb, in ext4_meta_bg_first_block_no() argument
71 group = ext4_meta_bg_first_group(sb, group); in ext4_meta_bg_first_block_no()
72 return ext4_group_first_block_no(sb, group); in ext4_meta_bg_first_block_no()
75 static ext4_grpblk_t ext4_group_overhead_blocks(struct super_block *sb, in ext4_group_overhead_blocks() argument
78 overhead = ext4_bg_num_gdb(sb, group); in ext4_group_overhead_blocks()
79 if (ext4_bg_has_super(sb, group)) in ext4_group_overhead_blocks()
81 le16_to_cpu(EXT4_SB(sb)->s_es->s_reserved_gdt_blocks); in ext4_group_overhead_blocks()
88 static int verify_group_input(struct super_block *sb, in verify_group_input() argument
91 struct ext4_sb_info *sbi = EXT4_SB(sb); in verify_group_input()
104 ext4_warning(sb, "Cannot add at group %u (only %u groups)", in verify_group_input()
109 overhead = ext4_group_overhead_blocks(sb, group); in verify_group_input()
114 if (test_opt(sb, DEBUG)) in verify_group_input()
117 ext4_bg_has_super(sb, input->group) ? "normal" : in verify_group_input()
121 ext4_get_group_no_and_offset(sb, start, NULL, &offset); in verify_group_input()
123 ext4_warning(sb, "Last group not full"); in verify_group_input()
125 ext4_warning(sb, "Reserved blocks too high (%u)", in verify_group_input()
128 ext4_warning(sb, "Bad blocks count %u", in verify_group_input()
130 else if (!(bh = sb_bread(sb, end - 1))) in verify_group_input()
131 ext4_warning(sb, "Cannot read last block (%llu)", in verify_group_input()
134 ext4_warning(sb, "Block bitmap not in group (block %llu)", in verify_group_input()
137 ext4_warning(sb, "Inode bitmap not in group (block %llu)", in verify_group_input()
141 ext4_warning(sb, "Inode table not in group (blocks %llu-%llu)", in verify_group_input()
144 ext4_warning(sb, "Block bitmap same as inode bitmap (%llu)", in verify_group_input()
147 ext4_warning(sb, "Block bitmap (%llu) in inode table " in verify_group_input()
152 ext4_warning(sb, "Inode bitmap (%llu) in inode table " in verify_group_input()
157 ext4_warning(sb, "Block bitmap (%llu) in GDT table (%llu-%llu)", in verify_group_input()
161 ext4_warning(sb, "Inode bitmap (%llu) in GDT table (%llu-%llu)", in verify_group_input()
166 ext4_warning(sb, "Inode table (%llu-%llu) overlaps GDT table " in verify_group_input()
249 static int ext4_alloc_group_tables(struct super_block *sb, in ext4_alloc_group_tables() argument
277 start_blk = ext4_group_first_block_no(sb, src_group); in ext4_alloc_group_tables()
280 overhead = ext4_group_overhead_blocks(sb, src_group); in ext4_alloc_group_tables()
287 overhead = ext4_group_overhead_blocks(sb, src_group); in ext4_alloc_group_tables()
299 group = ext4_get_group_number(sb, start_blk - 1); in ext4_alloc_group_tables()
310 group = ext4_get_group_number(sb, start_blk - 1); in ext4_alloc_group_tables()
318 unsigned int itb = EXT4_SB(sb)->s_itb_per_group; in ext4_alloc_group_tables()
324 group = ext4_get_group_number(sb, start_blk); in ext4_alloc_group_tables()
325 next_group_start = ext4_group_first_block_no(sb, group + 1); in ext4_alloc_group_tables()
337 start_blk += EXT4_SB(sb)->s_itb_per_group; in ext4_alloc_group_tables()
343 EXT4_NUM_B2C(EXT4_SB(sb), in ext4_alloc_group_tables()
347 if (test_opt(sb, DEBUG)) { in ext4_alloc_group_tables()
358 ext4_bg_has_super(sb, group + i) ? "normal" : in ext4_alloc_group_tables()
368 static struct buffer_head *bclean(handle_t *handle, struct super_block *sb, in bclean() argument
374 bh = sb_getblk(sb, blk); in bclean()
382 memset(bh->b_data, 0, sb->s_blocksize); in bclean()
422 static int set_flexbg_block_bitmap(struct super_block *sb, handle_t *handle, in set_flexbg_block_bitmap() argument
426 struct ext4_sb_info *sbi = EXT4_SB(sb); in set_flexbg_block_bitmap()
439 group = ext4_get_group_number(sb, EXT4_C2B(sbi, first_cluster)); in set_flexbg_block_bitmap()
440 start = EXT4_B2C(sbi, ext4_group_first_block_no(sb, group)); in set_flexbg_block_bitmap()
443 count2 = EXT4_CLUSTERS_PER_GROUP(sb) - (first_cluster - start); in set_flexbg_block_bitmap()
456 bh = sb_getblk(sb, flex_gd->groups[group].block_bitmap); in set_flexbg_block_bitmap()
491 static int setup_new_flex_group_blocks(struct super_block *sb, in setup_new_flex_group_blocks() argument
494 int group_table_count[] = {1, 1, EXT4_SB(sb)->s_itb_per_group}; in setup_new_flex_group_blocks()
497 struct ext4_sb_info *sbi = EXT4_SB(sb); in setup_new_flex_group_blocks()
511 meta_bg = ext4_has_feature_meta_bg(sb); in setup_new_flex_group_blocks()
514 handle = ext4_journal_start_sb(sb, EXT4_HT_RESIZE, EXT4_MAX_TRANS_DATA); in setup_new_flex_group_blocks()
523 gdblocks = ext4_bg_num_gdb(sb, group); in setup_new_flex_group_blocks()
524 start = ext4_group_first_block_no(sb, group); in setup_new_flex_group_blocks()
526 if (meta_bg == 0 && !ext4_bg_has_super(sb, group)) in setup_new_flex_group_blocks()
531 first_group = ext4_meta_bg_first_group(sb, group); in setup_new_flex_group_blocks()
533 first_group != group + EXT4_DESC_PER_BLOCK(sb) - 1) in setup_new_flex_group_blocks()
537 block = start + ext4_bg_has_super(sb, group); in setup_new_flex_group_blocks()
547 gdb = sb_getblk(sb, block); in setup_new_flex_group_blocks()
574 if (ext4_bg_has_super(sb, group)) { in setup_new_flex_group_blocks()
575 err = sb_issue_zeroout(sb, gdblocks + start + 1, in setup_new_flex_group_blocks()
590 err = sb_issue_zeroout(sb, block, sbi->s_itb_per_group, in setup_new_flex_group_blocks()
605 bh = bclean(handle, sb, block); in setup_new_flex_group_blocks()
611 overhead = ext4_group_overhead_blocks(sb, group); in setup_new_flex_group_blocks()
619 sb->s_blocksize * 8, bh->b_data); in setup_new_flex_group_blocks()
635 bh = bclean(handle, sb, block); in setup_new_flex_group_blocks()
642 ext4_mark_bitmap_end(EXT4_INODES_PER_GROUP(sb), in setup_new_flex_group_blocks()
643 sb->s_blocksize * 8, bh->b_data); in setup_new_flex_group_blocks()
662 err = set_flexbg_block_bitmap(sb, handle, in setup_new_flex_group_blocks()
676 err = set_flexbg_block_bitmap(sb, handle, in setup_new_flex_group_blocks()
703 static unsigned ext4_list_backups(struct super_block *sb, unsigned *three, in ext4_list_backups() argument
710 if (!ext4_has_feature_sparse_super(sb)) { in ext4_list_backups()
736 static int verify_reserved_gdb(struct super_block *sb, in verify_reserved_gdb() argument
748 while ((grp = ext4_list_backups(sb, &three, &five, &seven)) < end) { in verify_reserved_gdb()
750 grp * EXT4_BLOCKS_PER_GROUP(sb) + blk){ in verify_reserved_gdb()
751 ext4_warning(sb, "reserved GDT %llu" in verify_reserved_gdb()
755 (ext4_fsblk_t)EXT4_BLOCKS_PER_GROUP(sb) + in verify_reserved_gdb()
759 if (++gdbackups > EXT4_ADDR_PER_BLOCK(sb)) in verify_reserved_gdb()
782 struct super_block *sb = inode->i_sb; in add_new_gdb() local
783 struct ext4_super_block *es = EXT4_SB(sb)->s_es; in add_new_gdb()
784 unsigned long gdb_num = group / EXT4_DESC_PER_BLOCK(sb); in add_new_gdb()
785 ext4_fsblk_t gdblock = EXT4_SB(sb)->s_sbh->b_blocknr + 1 + gdb_num; in add_new_gdb()
794 if (test_opt(sb, DEBUG)) in add_new_gdb()
799 gdb_bh = sb_bread(sb, gdblock); in add_new_gdb()
803 gdbackups = verify_reserved_gdb(sb, group, gdb_bh); in add_new_gdb()
810 dind = sb_bread(sb, le32_to_cpu(*data)); in add_new_gdb()
817 if (le32_to_cpu(data[gdb_num % EXT4_ADDR_PER_BLOCK(sb)]) != gdblock) { in add_new_gdb()
818 ext4_warning(sb, "new group %u GDT block %llu not reserved", in add_new_gdb()
824 BUFFER_TRACE(EXT4_SB(sb)->s_sbh, "get_write_access"); in add_new_gdb()
825 err = ext4_journal_get_write_access(handle, EXT4_SB(sb)->s_sbh); in add_new_gdb()
837 ext4_std_error(sb, err); in add_new_gdb()
849 ext4_warning(sb, "not enough memory for %lu groups", in add_new_gdb()
863 data[gdb_num % EXT4_ADDR_PER_BLOCK(sb)] = 0; in add_new_gdb()
866 ext4_std_error(sb, err); in add_new_gdb()
869 inode->i_blocks -= (gdbackups + 1) * sb->s_blocksize >> in add_new_gdb()
870 (9 - EXT4_SB(sb)->s_cluster_bits); in add_new_gdb()
872 memset(gdb_bh->b_data, 0, sb->s_blocksize); in add_new_gdb()
875 ext4_std_error(sb, err); in add_new_gdb()
880 o_group_desc = EXT4_SB(sb)->s_group_desc; in add_new_gdb()
882 EXT4_SB(sb)->s_gdb_count * sizeof(struct buffer_head *)); in add_new_gdb()
884 EXT4_SB(sb)->s_group_desc = n_group_desc; in add_new_gdb()
885 EXT4_SB(sb)->s_gdb_count++; in add_new_gdb()
889 err = ext4_handle_dirty_super(handle, sb); in add_new_gdb()
891 ext4_std_error(sb, err); in add_new_gdb()
910 static int add_new_gdb_meta_bg(struct super_block *sb, in add_new_gdb_meta_bg() argument
915 unsigned long gdb_num = group / EXT4_DESC_PER_BLOCK(sb); in add_new_gdb_meta_bg()
918 gdblock = ext4_meta_bg_first_block_no(sb, group) + in add_new_gdb_meta_bg()
919 ext4_bg_has_super(sb, group); in add_new_gdb_meta_bg()
920 gdb_bh = sb_bread(sb, gdblock); in add_new_gdb_meta_bg()
928 ext4_warning(sb, "not enough memory for %lu groups", in add_new_gdb_meta_bg()
933 o_group_desc = EXT4_SB(sb)->s_group_desc; in add_new_gdb_meta_bg()
935 EXT4_SB(sb)->s_gdb_count * sizeof(struct buffer_head *)); in add_new_gdb_meta_bg()
937 EXT4_SB(sb)->s_group_desc = n_group_desc; in add_new_gdb_meta_bg()
938 EXT4_SB(sb)->s_gdb_count++; in add_new_gdb_meta_bg()
963 struct super_block *sb = inode->i_sb; in reserve_backup_gdb() local
964 int reserved_gdb =le16_to_cpu(EXT4_SB(sb)->s_es->s_reserved_gdt_blocks); in reserve_backup_gdb()
965 int cluster_bits = EXT4_SB(sb)->s_cluster_bits; in reserve_backup_gdb()
980 dind = sb_bread(sb, le32_to_cpu(*data)); in reserve_backup_gdb()
986 blk = EXT4_SB(sb)->s_sbh->b_blocknr + 1 + EXT4_SB(sb)->s_gdb_count; in reserve_backup_gdb()
987 data = (__le32 *)dind->b_data + (EXT4_SB(sb)->s_gdb_count % in reserve_backup_gdb()
988 EXT4_ADDR_PER_BLOCK(sb)); in reserve_backup_gdb()
989 end = (__le32 *)dind->b_data + EXT4_ADDR_PER_BLOCK(sb); in reserve_backup_gdb()
994 ext4_warning(sb, "reserved block %llu" in reserve_backup_gdb()
1001 primary[res] = sb_bread(sb, blk); in reserve_backup_gdb()
1006 gdbackups = verify_reserved_gdb(sb, group, primary[res]); in reserve_backup_gdb()
1029 blk = group * EXT4_BLOCKS_PER_GROUP(sb); in reserve_backup_gdb()
1042 inode->i_blocks += reserved_gdb * sb->s_blocksize >> (9 - cluster_bits); in reserve_backup_gdb()
1072 static void update_backups(struct super_block *sb, sector_t blk_off, char *data, in update_backups() argument
1075 struct ext4_sb_info *sbi = EXT4_SB(sb); in update_backups()
1077 const int bpg = EXT4_BLOCKS_PER_GROUP(sb); in update_backups()
1082 int rest = sb->s_blocksize - size; in update_backups()
1086 handle = ext4_journal_start_sb(sb, EXT4_HT_RESIZE, EXT4_MAX_TRANS_DATA); in update_backups()
1094 group = ext4_list_backups(sb, &three, &five, &seven); in update_backups()
1097 group = ext4_get_group_number(sb, blk_off) + 1; in update_backups()
1098 last = (ext4_group_t)(group + EXT4_DESC_PER_BLOCK(sb) - 2); in update_backups()
1115 backup_block = (ext4_group_first_block_no(sb, group) + in update_backups()
1116 ext4_bg_has_super(sb, group)); in update_backups()
1118 bh = sb_getblk(sb, backup_block); in update_backups()
1125 ext4_group_first_block_no(sb, group)); in update_backups()
1137 ext4_std_error(sb, err); in update_backups()
1141 group = ext4_list_backups(sb, &three, &five, &seven); in update_backups()
1162 ext4_warning(sb, "can't update backup for group %u (err %d), " in update_backups()
1180 static int ext4_add_new_descs(handle_t *handle, struct super_block *sb, in ext4_add_new_descs() argument
1184 struct ext4_sb_info *sbi = EXT4_SB(sb); in ext4_add_new_descs()
1190 meta_bg = ext4_has_feature_meta_bg(sb); in ext4_add_new_descs()
1192 int reserved_gdb = ext4_bg_has_super(sb, group) ? in ext4_add_new_descs()
1195 gdb_off = group % EXT4_DESC_PER_BLOCK(sb); in ext4_add_new_descs()
1196 gdb_num = group / EXT4_DESC_PER_BLOCK(sb); in ext4_add_new_descs()
1209 if (!err && reserved_gdb && ext4_bg_num_gdb(sb, group)) in ext4_add_new_descs()
1212 err = add_new_gdb_meta_bg(sb, handle, group); in ext4_add_new_descs()
1222 static struct buffer_head *ext4_get_bitmap(struct super_block *sb, __u64 block) in ext4_get_bitmap() argument
1224 struct buffer_head *bh = sb_getblk(sb, block); in ext4_get_bitmap()
1237 static int ext4_set_bitmap_checksums(struct super_block *sb, in ext4_set_bitmap_checksums() argument
1244 if (!ext4_has_metadata_csum(sb)) in ext4_set_bitmap_checksums()
1247 bh = ext4_get_bitmap(sb, group_data->inode_bitmap); in ext4_set_bitmap_checksums()
1250 ext4_inode_bitmap_csum_set(sb, group, gdp, bh, in ext4_set_bitmap_checksums()
1251 EXT4_INODES_PER_GROUP(sb) / 8); in ext4_set_bitmap_checksums()
1254 bh = ext4_get_bitmap(sb, group_data->block_bitmap); in ext4_set_bitmap_checksums()
1257 ext4_block_bitmap_csum_set(sb, group, gdp, bh); in ext4_set_bitmap_checksums()
1266 static int ext4_setup_new_descs(handle_t *handle, struct super_block *sb, in ext4_setup_new_descs() argument
1271 struct ext4_sb_info *sbi = EXT4_SB(sb); in ext4_setup_new_descs()
1281 gdb_off = group % EXT4_DESC_PER_BLOCK(sb); in ext4_setup_new_descs()
1282 gdb_num = group / EXT4_DESC_PER_BLOCK(sb); in ext4_setup_new_descs()
1290 gdb_off * EXT4_DESC_SIZE(sb)); in ext4_setup_new_descs()
1292 memset(gdp, 0, EXT4_DESC_SIZE(sb)); in ext4_setup_new_descs()
1293 ext4_block_bitmap_set(sb, gdp, group_data->block_bitmap); in ext4_setup_new_descs()
1294 ext4_inode_bitmap_set(sb, gdp, group_data->inode_bitmap); in ext4_setup_new_descs()
1295 err = ext4_set_bitmap_checksums(sb, group, gdp, group_data); in ext4_setup_new_descs()
1297 ext4_std_error(sb, err); in ext4_setup_new_descs()
1301 ext4_inode_table_set(sb, gdp, group_data->inode_table); in ext4_setup_new_descs()
1302 ext4_free_group_clusters_set(sb, gdp, in ext4_setup_new_descs()
1304 ext4_free_inodes_set(sb, gdp, EXT4_INODES_PER_GROUP(sb)); in ext4_setup_new_descs()
1305 if (ext4_has_group_desc_csum(sb)) in ext4_setup_new_descs()
1306 ext4_itable_unused_set(sb, gdp, in ext4_setup_new_descs()
1307 EXT4_INODES_PER_GROUP(sb)); in ext4_setup_new_descs()
1309 ext4_group_desc_csum_set(sb, group, gdp); in ext4_setup_new_descs()
1313 ext4_std_error(sb, err); in ext4_setup_new_descs()
1321 err = ext4_mb_add_groupinfo(sb, group, gdp); in ext4_setup_new_descs()
1335 static void ext4_update_super(struct super_block *sb, in ext4_update_super() argument
1342 struct ext4_sb_info *sbi = EXT4_SB(sb); in ext4_update_super()
1369 le32_add_cpu(&es->s_inodes_count, EXT4_INODES_PER_GROUP(sb) * in ext4_update_super()
1371 le32_add_cpu(&es->s_free_inodes_count, EXT4_INODES_PER_GROUP(sb) * in ext4_update_super()
1398 (EXT4_MAX_BLOCK_FILE_PHYS / EXT4_BLOCKS_PER_GROUP(sb))); in ext4_update_super()
1409 EXT4_INODES_PER_GROUP(sb) * flex_gd->count); in ext4_update_super()
1413 if (ext4_has_feature_flex_bg(sb) && sbi->s_log_groups_per_flex) { in ext4_update_super()
1418 atomic_add(EXT4_INODES_PER_GROUP(sb) * flex_gd->count, in ext4_update_super()
1425 ext4_calculate_overhead(sb); in ext4_update_super()
1427 if (test_opt(sb, DEBUG)) in ext4_update_super()
1437 static int ext4_flex_group_add(struct super_block *sb, in ext4_flex_group_add() argument
1441 struct ext4_sb_info *sbi = EXT4_SB(sb); in ext4_flex_group_add()
1454 ext4_get_group_no_and_offset(sb, o_blocks_count, &group, &last); in ext4_flex_group_add()
1457 err = setup_new_flex_group_blocks(sb, flex_gd); in ext4_flex_group_add()
1469 credit += 1 + DIV_ROUND_UP(flex_gd->count, EXT4_DESC_PER_BLOCK(sb)); in ext4_flex_group_add()
1471 handle = ext4_journal_start_sb(sb, EXT4_HT_RESIZE, credit); in ext4_flex_group_add()
1484 err = ext4_add_new_descs(handle, sb, group, in ext4_flex_group_add()
1489 err = ext4_setup_new_descs(handle, sb, flex_gd); in ext4_flex_group_add()
1493 ext4_update_super(sb, flex_gd); in ext4_flex_group_add()
1495 err = ext4_handle_dirty_super(handle, sb); in ext4_flex_group_add()
1503 int gdb_num = group / EXT4_DESC_PER_BLOCK(sb); in ext4_flex_group_add()
1505 EXT4_DESC_PER_BLOCK(sb)); in ext4_flex_group_add()
1506 int meta_bg = ext4_has_feature_meta_bg(sb); in ext4_flex_group_add()
1509 update_backups(sb, sbi->s_sbh->b_blocknr, (char *)es, in ext4_flex_group_add()
1517 update_backups(sb, gdb_bh->b_blocknr, gdb_bh->b_data, in ext4_flex_group_add()
1526 static int ext4_setup_next_flex_gd(struct super_block *sb, in ext4_setup_next_flex_gd() argument
1531 struct ext4_sb_info *sbi = EXT4_SB(sb); in ext4_setup_next_flex_gd()
1542 clusters_per_group = EXT4_CLUSTERS_PER_GROUP(sb); in ext4_setup_next_flex_gd()
1549 ext4_get_group_no_and_offset(sb, o_blocks_count, &group, &last); in ext4_setup_next_flex_gd()
1551 ext4_get_group_no_and_offset(sb, n_blocks_count - 1, &n_group, &last); in ext4_setup_next_flex_gd()
1563 group_data[i].blocks_count = EXT4_BLOCKS_PER_GROUP(sb); in ext4_setup_next_flex_gd()
1564 overhead = ext4_group_overhead_blocks(sb, group + i); in ext4_setup_next_flex_gd()
1566 group_data[i].free_clusters_count = EXT4_CLUSTERS_PER_GROUP(sb); in ext4_setup_next_flex_gd()
1567 if (ext4_has_group_desc_csum(sb)) { in ext4_setup_next_flex_gd()
1570 if (!test_opt(sb, INIT_INODE_TABLE)) in ext4_setup_next_flex_gd()
1576 if (last_group == n_group && ext4_has_group_desc_csum(sb)) in ext4_setup_next_flex_gd()
1602 int ext4_group_add(struct super_block *sb, struct ext4_new_group_data *input) in ext4_group_add() argument
1605 struct ext4_sb_info *sbi = EXT4_SB(sb); in ext4_group_add()
1607 int reserved_gdb = ext4_bg_has_super(sb, input->group) ? in ext4_group_add()
1614 gdb_off = input->group % EXT4_DESC_PER_BLOCK(sb); in ext4_group_add()
1616 if (gdb_off == 0 && !ext4_has_feature_sparse_super(sb)) { in ext4_group_add()
1617 ext4_warning(sb, "Can't resize non-sparse filesystem further"); in ext4_group_add()
1623 ext4_warning(sb, "blocks_count overflow"); in ext4_group_add()
1627 if (le32_to_cpu(es->s_inodes_count) + EXT4_INODES_PER_GROUP(sb) < in ext4_group_add()
1629 ext4_warning(sb, "inodes_count overflow"); in ext4_group_add()
1634 if (ext4_has_feature_resize_inode(sb) || in ext4_group_add()
1636 ext4_warning(sb, in ext4_group_add()
1640 inode = ext4_iget(sb, EXT4_RESIZE_INO); in ext4_group_add()
1642 ext4_warning(sb, "Error opening resize inode"); in ext4_group_add()
1648 err = verify_group_input(sb, input); in ext4_group_add()
1652 err = ext4_alloc_flex_bg_array(sb, input->group + 1); in ext4_group_add()
1656 err = ext4_mb_alloc_groupinfo(sb, input->group + 1); in ext4_group_add()
1663 err = ext4_flex_group_add(sb, inode, &flex_gd); in ext4_group_add()
1672 static int ext4_group_extend_no_check(struct super_block *sb, in ext4_group_extend_no_check() argument
1675 struct ext4_super_block *es = EXT4_SB(sb)->s_es; in ext4_group_extend_no_check()
1682 handle = ext4_journal_start_sb(sb, EXT4_HT_RESIZE, 3); in ext4_group_extend_no_check()
1685 ext4_warning(sb, "error %d on journal start", err); in ext4_group_extend_no_check()
1689 BUFFER_TRACE(EXT4_SB(sb)->s_sbh, "get_write_access"); in ext4_group_extend_no_check()
1690 err = ext4_journal_get_write_access(handle, EXT4_SB(sb)->s_sbh); in ext4_group_extend_no_check()
1692 ext4_warning(sb, "error %d on journal write access", err); in ext4_group_extend_no_check()
1701 err = ext4_group_add_blocks(handle, sb, o_blocks_count, add); in ext4_group_extend_no_check()
1704 ext4_handle_dirty_super(handle, sb); in ext4_group_extend_no_check()
1713 if (test_opt(sb, DEBUG)) in ext4_group_extend_no_check()
1716 update_backups(sb, EXT4_SB(sb)->s_sbh->b_blocknr, in ext4_group_extend_no_check()
1732 int ext4_group_extend(struct super_block *sb, struct ext4_super_block *es, in ext4_group_extend() argument
1744 if (test_opt(sb, DEBUG)) in ext4_group_extend()
1745 ext4_msg(sb, KERN_DEBUG, in ext4_group_extend()
1752 if (n_blocks_count > (sector_t)(~0ULL) >> (sb->s_blocksize_bits - 9)) { in ext4_group_extend()
1753 ext4_msg(sb, KERN_ERR, in ext4_group_extend()
1757 ext4_warning(sb, "CONFIG_LBDAF not enabled"); in ext4_group_extend()
1762 ext4_warning(sb, "can't shrink FS - resize aborted"); in ext4_group_extend()
1767 ext4_get_group_no_and_offset(sb, o_blocks_count, &group, &last); in ext4_group_extend()
1770 ext4_warning(sb, "need to use ext2online to resize further"); in ext4_group_extend()
1774 add = EXT4_BLOCKS_PER_GROUP(sb) - last; in ext4_group_extend()
1777 ext4_warning(sb, "blocks_count overflow"); in ext4_group_extend()
1785 ext4_warning(sb, "will only finish group (%llu blocks, %u new)", in ext4_group_extend()
1789 bh = sb_bread(sb, o_blocks_count + add - 1); in ext4_group_extend()
1791 ext4_warning(sb, "can't read last block, resize aborted"); in ext4_group_extend()
1796 err = ext4_group_extend_no_check(sb, o_blocks_count, add); in ext4_group_extend()
1801 static int num_desc_blocks(struct super_block *sb, ext4_group_t groups) in num_desc_blocks() argument
1803 return (groups + EXT4_DESC_PER_BLOCK(sb) - 1) / EXT4_DESC_PER_BLOCK(sb); in num_desc_blocks()
1811 static int ext4_convert_meta_bg(struct super_block *sb, struct inode *inode) in ext4_convert_meta_bg() argument
1814 struct ext4_sb_info *sbi = EXT4_SB(sb); in ext4_convert_meta_bg()
1821 ext4_msg(sb, KERN_INFO, "Converting file system to meta_bg"); in ext4_convert_meta_bg()
1824 ext4_error(sb, "Unexpected non-zero " in ext4_convert_meta_bg()
1846 handle = ext4_journal_start_sb(sb, EXT4_HT_RESIZE, credits); in ext4_convert_meta_bg()
1855 ext4_clear_feature_resize_inode(sb); in ext4_convert_meta_bg()
1856 ext4_set_feature_meta_bg(sb); in ext4_convert_meta_bg()
1858 cpu_to_le32(num_desc_blocks(sb, sbi->s_groups_count)); in ext4_convert_meta_bg()
1860 err = ext4_handle_dirty_super(handle, sb); in ext4_convert_meta_bg()
1862 ext4_std_error(sb, err); in ext4_convert_meta_bg()
1876 ext4_std_error(sb, err); in ext4_convert_meta_bg()
1886 ext4_error(sb, "corrupted/inconsistent resize inode"); in ext4_convert_meta_bg()
1896 int ext4_resize_fs(struct super_block *sb, ext4_fsblk_t n_blocks_count) in ext4_resize_fs() argument
1899 struct ext4_sb_info *sbi = EXT4_SB(sb); in ext4_resize_fs()
1915 bh = sb_bread(sb, n_blocks_count - 1); in ext4_resize_fs()
1917 ext4_warning(sb, "can't read last block, resize aborted"); in ext4_resize_fs()
1925 ext4_msg(sb, KERN_INFO, "resizing filesystem from %llu " in ext4_resize_fs()
1930 ext4_warning(sb, "can't shrink FS - resize aborted"); in ext4_resize_fs()
1938 n_group = ext4_get_group_number(sb, n_blocks_count - 1); in ext4_resize_fs()
1939 if (n_group >= (0xFFFFFFFFUL / EXT4_INODES_PER_GROUP(sb))) { in ext4_resize_fs()
1940 ext4_warning(sb, "resize would cause inodes_count overflow"); in ext4_resize_fs()
1943 ext4_get_group_no_and_offset(sb, o_blocks_count - 1, &o_group, &offset); in ext4_resize_fs()
1945 n_desc_blocks = num_desc_blocks(sb, n_group + 1); in ext4_resize_fs()
1946 o_desc_blocks = num_desc_blocks(sb, sbi->s_groups_count); in ext4_resize_fs()
1948 meta_bg = ext4_has_feature_meta_bg(sb); in ext4_resize_fs()
1950 if (ext4_has_feature_resize_inode(sb)) { in ext4_resize_fs()
1952 ext4_error(sb, "resize_inode and meta_bg enabled " in ext4_resize_fs()
1961 n_group = n_desc_blocks * EXT4_DESC_PER_BLOCK(sb); in ext4_resize_fs()
1963 EXT4_BLOCKS_PER_GROUP(sb); in ext4_resize_fs()
1968 resize_inode = ext4_iget(sb, EXT4_RESIZE_INO); in ext4_resize_fs()
1970 ext4_warning(sb, "Error opening resize inode"); in ext4_resize_fs()
1976 err = ext4_convert_meta_bg(sb, resize_inode); in ext4_resize_fs()
1997 if ((ext4_group_first_block_no(sb, n_group) + in ext4_resize_fs()
1998 ext4_group_overhead_blocks(sb, n_group) + 2 + in ext4_resize_fs()
2000 n_blocks_count = ext4_group_first_block_no(sb, n_group); in ext4_resize_fs()
2014 add = EXT4_C2B(sbi, EXT4_CLUSTERS_PER_GROUP(sb) - (offset + 1)); in ext4_resize_fs()
2016 err = ext4_group_extend_no_check(sb, o_blocks_count, add); in ext4_resize_fs()
2024 err = ext4_alloc_flex_bg_array(sb, n_group + 1); in ext4_resize_fs()
2028 err = ext4_mb_alloc_groupinfo(sb, n_group + 1); in ext4_resize_fs()
2041 while (ext4_setup_next_flex_gd(sb, flex_gd, n_blocks_count, in ext4_resize_fs()
2045 ext4_msg(sb, KERN_INFO, in ext4_resize_fs()
2050 if (ext4_alloc_group_tables(sb, flex_gd, flexbg_size) != 0) in ext4_resize_fs()
2052 err = ext4_flex_group_add(sb, resize_inode, flex_gd); in ext4_resize_fs()
2070 ext4_msg(sb, KERN_INFO, "resized filesystem to %llu", n_blocks_count); in ext4_resize_fs()