linux-ext4 - [PATCH v5 3/3] ext4: update doc about journal superblock description

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Message-Id: <20230322013353.1843306-4-yi.zhang@huaweicloud.com>
Date:   Wed, 22 Mar 2023 09:33:53 +0800
From:   Zhang Yi <yi.zhang@...weicloud.com>
To:     linux-ext4@...r.kernel.org
Cc:     tytso@....edu, adilger.kernel@...ger.ca, jack@...e.cz,
        yi.zhang@...wei.com, yi.zhang@...weicloud.com, yukuai3@...wei.com
Subject: [PATCH v5 3/3] ext4: update doc about journal superblock description

From: Zhang Yi <yi.zhang@...wei.com>

Update the description in doc about the s_head parameter in the journal
superblock.

Signed-off-by: Zhang Yi <yi.zhang@...wei.com>
---
 Documentation/filesystems/ext4/journal.rst | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

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
-- 
2.31.1