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| author | Zhang Yi <yi.zhang@huawei.com> | 2023-03-22 02:33:53 +0100 |
|---|---|---|
| committer | Theodore Ts'o <tytso@mit.edu> | 2023-06-27 01:35:13 +0200 |
| commit | bd5a594b5b1cfa14646bc29e6c7745c961025055 (patch) | |
| tree | a4f0fbeb94dc6aeec0b5d6cccce9132ecfbfaab1 /Documentation/filesystems | |
| parent | ext4: add journal cycled recording support (diff) | |
| download | linux-bd5a594b5b1cfa14646bc29e6c7745c961025055.tar.xz linux-bd5a594b5b1cfa14646bc29e6c7745c961025055.zip | |
ext4: update doc about journal superblock description
Update the description in doc about the s_head parameter in the journal
superblock.
Signed-off-by: Zhang Yi <yi.zhang@huawei.com>
Link: https://lore.kernel.org/r/20230322013353.1843306-4-yi.zhang@huaweicloud.com
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Diffstat (limited to 'Documentation/filesystems')
| -rw-r--r-- | Documentation/filesystems/ext4/journal.rst | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/Documentation/filesystems/ext4/journal.rst b/Documentation/filesystems/ext4/journal.rst index a6bef5293a60..6e8fb2d4b46f 100644 --- a/Documentation/filesystems/ext4/journal.rst +++ b/Documentation/filesystems/ext4/journal.rst @@ -260,8 +260,13 @@ which is 1024 bytes long: - s_num_fc_blocks - Number of fast commit blocks in the journal. * - 0x58 + - __be32 + - s_head + - Block number of the head (first unused block) of the journal, only + up-to-date when the journal is empty. + * - 0x5C - __u32 - - s_padding[42] + - s_padding[40] - * - 0xFC - __be32 |