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| author | dardaoe <dardaoe@proton.me> | 2026-06-26 21:09:09 +0000 |
|---|---|---|
| committer | Theodore Ts'o <tytso@mit.edu> | 2026-07-22 11:45:36 -0400 |
| commit | 91949729befb819c8748f9bd75c74ad5696dc090 (patch) | |
| tree | 70f1a631bf28235e554047f2daf241d9ff071169 /Documentation/filesystems/ext4 | |
| parent | ec524aae479b4b2078c47492b90ec21200bce434 (diff) | |
| download | linux-next-91949729befb819c8748f9bd75c74ad5696dc090.tar.gz linux-next-91949729befb819c8748f9bd75c74ad5696dc090.zip | |
Documentation: ext4: fix block_group layout when meta_bg is enabled
Documentation/filesystems/ext4/group_descr.rst contains a slightly
inaccurate description of the meta_bg layout. Fix it to be correect.
Link: https://patch.msgid.link/F6-Nv2DhZIxD7g0KzZFf36UXOLn6D8qTlOQQFjIuQb_GyiQtoEQCvvRzDKnpYeSrd_E9H_DQYygw1zBDzlR2KxqqGsmYjODQr2qmRdjuixw=@proton.me
Signed-off-by: dardaoe dardaoe@proton.me
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Diffstat (limited to 'Documentation/filesystems/ext4')
| -rw-r--r-- | Documentation/filesystems/ext4/group_descr.rst | 9 |
1 files changed, 4 insertions, 5 deletions
diff --git a/Documentation/filesystems/ext4/group_descr.rst b/Documentation/filesystems/ext4/group_descr.rst index 392ec44f8fb0..9a0c2d92c2ef 100644 --- a/Documentation/filesystems/ext4/group_descr.rst +++ b/Documentation/filesystems/ext4/group_descr.rst @@ -20,11 +20,10 @@ group of the flex group. If the meta_bg feature flag is set, then several block groups are grouped together into a meta group. Note that in the meta_bg case, -however, the first and last two block groups within the larger meta -group contain only group descriptors for the groups inside the meta -group. - -flex_bg and meta_bg do not appear to be mutually exclusive features. +however, the superblock and a single block group descriptor block is +placed at the beginning of the first, second, and last block groups in a +meta-block group. The flex_bg and meta_bg features are not mutually +exclusive. In ext2, ext3, and ext4 (when the 64bit feature is not enabled), the block group descriptor was only 32 bytes long and therefore ends at |