Received-SPF: pass (google.com: domain of linux-ext4-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20;
From:   Zhang Yi <yi.zhang@huaweicloud.com>
To:     linux-ext4@vger.kernel.org
Cc:     tytso@mit.edu, adilger.kernel@dilger.ca, jack@suse.cz,
        yi.zhang@huawei.com, yi.zhang@huaweicloud.com, yukuai3@huawei.com
Subject: [PATCH v5 3/3] ext4: update doc about journal superblock description
Date:   Wed, 22 Mar 2023 09:33:53 +0800
Message-Id: <20230322013353.1843306-4-yi.zhang@huaweicloud.com>
In-Reply-To: <20230322013353.1843306-1-yi.zhang@huaweicloud.com>
References: <20230322013353.1843306-1-yi.zhang@huaweicloud.com>
MIME-Version: 1.0
Content-Transfer-Encoding: 8bit
Precedence: bulk

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

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

Signed-off-by: Zhang Yi <yi.zhang@huawei.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