1 .. SPDX-License-Identifier: GPL-2.0
2
3 Block and inode Bitmaps
4 -----------------------
5
6 The data block bitmap tracks the usage of data
7 group.
8
9 The inode bitmap records which entries in the
10
11 As with most bitmaps, one bit represents the u
12 block or inode table entry. This implies a blo
13 number_of_bytes_in_a_logical_block.
14
15 NOTE: If ``BLOCK_UNINIT`` is set for a given b
16 of the kernel and e2fsprogs code pretends that
17 zeros (i.e. all blocks in the group are free).
18 necessarily the case that no blocks are in use
19 the bitmaps and group descriptor live inside t
20 ext2fs_test_block_bitmap2() will return '0' fo
21 which produces confusing debugfs output.
22
23 Inode Table
24 -----------
25 Inode tables are statically allocated at mkfs
26 descriptor points to the start of the table, a
27 the number of inodes per group. See the secti
28 information.
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