diff options
Diffstat (limited to 'Documentation/filesystems/ext4/ondisk/journal.rst')
| -rw-r--r-- | Documentation/filesystems/ext4/ondisk/journal.rst | 32 |
1 files changed, 16 insertions, 16 deletions
diff --git a/Documentation/filesystems/ext4/ondisk/journal.rst b/Documentation/filesystems/ext4/ondisk/journal.rst index e7031af86876..ea613ee701f5 100644 --- a/Documentation/filesystems/ext4/ondisk/journal.rst +++ b/Documentation/filesystems/ext4/ondisk/journal.rst @@ -48,7 +48,7 @@ Layout Generally speaking, the journal has this format: .. list-table:: - :widths: 1 1 78 + :widths: 16 48 16 :header-rows: 1 * - Superblock @@ -76,7 +76,7 @@ The journal superblock will be in the next full block after the superblock. .. list-table:: - :widths: 1 1 1 1 76 + :widths: 12 12 12 32 12 :header-rows: 1 * - 1024 bytes of padding @@ -98,7 +98,7 @@ Every block in the journal starts with a common 12-byte header ``struct journal_header_s``: .. list-table:: - :widths: 1 1 1 77 + :widths: 8 8 24 40 :header-rows: 1 * - Offset @@ -124,7 +124,7 @@ Every block in the journal starts with a common 12-byte header The journal block type can be any one of: .. list-table:: - :widths: 1 79 + :widths: 16 64 :header-rows: 1 * - Value @@ -154,7 +154,7 @@ The journal superblock is recorded as ``struct journal_superblock_s``, which is 1024 bytes long: .. list-table:: - :widths: 1 1 1 77 + :widths: 8 8 24 40 :header-rows: 1 * - Offset @@ -264,7 +264,7 @@ which is 1024 bytes long: The journal compat features are any combination of the following: .. list-table:: - :widths: 1 79 + :widths: 16 64 :header-rows: 1 * - Value @@ -278,7 +278,7 @@ The journal compat features are any combination of the following: The journal incompat features are any combination of the following: .. list-table:: - :widths: 1 79 + :widths: 16 64 :header-rows: 1 * - Value @@ -306,7 +306,7 @@ Journal checksum type codes are one of the following. crc32 or crc32c are the most likely choices. .. list-table:: - :widths: 1 79 + :widths: 16 64 :header-rows: 1 * - Value @@ -330,7 +330,7 @@ described by a data structure, but here is the block structure anyway. Descriptor blocks consume at least 36 bytes, but use a full block: .. list-table:: - :widths: 1 1 1 77 + :widths: 8 8 24 40 :header-rows: 1 * - Offset @@ -355,7 +355,7 @@ defined as ``struct journal_block_tag3_s``, which looks like the following. The size is 16 or 32 bytes. .. list-table:: - :widths: 1 1 1 77 + :widths: 8 8 24 40 :header-rows: 1 * - Offset @@ -400,7 +400,7 @@ following. The size is 16 or 32 bytes. The journal tag flags are any combination of the following: .. list-table:: - :widths: 1 79 + :widths: 16 64 :header-rows: 1 * - Value @@ -421,7 +421,7 @@ is defined as ``struct journal_block_tag_s``, which looks like the following. The size is 8, 12, 24, or 28 bytes: .. list-table:: - :widths: 1 1 1 77 + :widths: 8 8 24 40 :header-rows: 1 * - Offset @@ -471,7 +471,7 @@ JBD2\_FEATURE\_INCOMPAT\_CSUM\_V3 are set, the end of the block is a ``struct jbd2_journal_block_tail``, which looks like this: .. list-table:: - :widths: 1 1 1 77 + :widths: 8 8 24 40 :header-rows: 1 * - Offset @@ -513,7 +513,7 @@ Revocation blocks are described in length, but use a full block: .. list-table:: - :widths: 1 1 1 77 + :widths: 8 8 24 40 :header-rows: 1 * - Offset @@ -543,7 +543,7 @@ JBD2\_FEATURE\_INCOMPAT\_CSUM\_V3 are set, the end of the revocation block is a ``struct jbd2_journal_revoke_tail``, which has this format: .. list-table:: - :widths: 1 1 1 77 + :widths: 8 8 24 40 :header-rows: 1 * - Offset @@ -567,7 +567,7 @@ The commit block is described by ``struct commit_header``, which is 32 bytes long (but uses a full block): .. list-table:: - :widths: 1 1 1 77 + :widths: 8 8 24 40 :header-rows: 1 * - Offset |