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diff --git a/Documentation/filesystems/ext4/ondisk/mmp.rst b/Documentation/filesystems/ext4/ondisk/mmp.rst
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--- a/Documentation/filesystems/ext4/ondisk/mmp.rst
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-.. SPDX-License-Identifier: GPL-2.0
-
-Multiple Mount Protection
--------------------------
-
-Multiple mount protection (MMP) is a feature that protects the
-filesystem against multiple hosts trying to use the filesystem
-simultaneously. When a filesystem is opened (for mounting, or fsck,
-etc.), the MMP code running on the node (call it node A) checks a
-sequence number. If the sequence number is EXT4\_MMP\_SEQ\_CLEAN, the
-open continues. If the sequence number is EXT4\_MMP\_SEQ\_FSCK, then
-fsck is (hopefully) running, and open fails immediately. Otherwise, the
-open code will wait for twice the specified MMP check interval and check
-the sequence number again. If the sequence number has changed, then the
-filesystem is active on another machine and the open fails. If the MMP
-code passes all of those checks, a new MMP sequence number is generated
-and written to the MMP block, and the mount proceeds.
-
-While the filesystem is live, the kernel sets up a timer to re-check the
-MMP block at the specified MMP check interval. To perform the re-check,
-the MMP sequence number is re-read; if it does not match the in-memory
-MMP sequence number, then another node (node B) has mounted the
-filesystem, and node A remounts the filesystem read-only. If the
-sequence numbers match, the sequence number is incremented both in
-memory and on disk, and the re-check is complete.
-
-The hostname and device filename are written into the MMP block whenever
-an open operation succeeds. The MMP code does not use these values; they
-are provided purely for informational purposes.
-
-The checksum is calculated against the FS UUID and the MMP structure.
-The MMP structure (``struct mmp_struct``) is as follows:
-
-.. list-table::
-   :widths: 1 1 1 77
-   :header-rows: 1
-
-   * - Offset
-     - Type
-     - Name
-     - Description
-   * - 0x0
-     - \_\_le32
-     - mmp\_magic
-     - Magic number for MMP, 0x004D4D50 (“MMP”).
-   * - 0x4
-     - \_\_le32
-     - mmp\_seq
-     - Sequence number, updated periodically.
-   * - 0x8
-     - \_\_le64
-     - mmp\_time
-     - Time that the MMP block was last updated.
-   * - 0x10
-     - char[64]
-     - mmp\_nodename
-     - Hostname of the node that opened the filesystem.
-   * - 0x50
-     - char[32]
-     - mmp\_bdevname
-     - Block device name of the filesystem.
-   * - 0x70
-     - \_\_le16
-     - mmp\_check\_interval
-     - The MMP re-check interval, in seconds.
-   * - 0x72
-     - \_\_le16
-     - mmp\_pad1
-     - Zero.
-   * - 0x74
-     - \_\_le32[226]
-     - mmp\_pad2
-     - Zero.
-   * - 0x3FC
-     - \_\_le32
-     - mmp\_checksum
-     - Checksum of the MMP block.