ff0722de89
This patch introduces a mechanism to periodically check and update the superblock within the ext4 file system. The main purpose of this patch is to keep the disk superblock up to date. The update will be performed if more than one hour has passed since the last update, and if more than 16MB of data have been written to disk. This check and update is performed within the ext4_journal_commit_callback function, ensuring that the superblock is written while the disk is active, rather than based on a timer that may trigger during disk idle periods. Discussion https://www.spinics.net/lists/linux-ext4/msg85865.html Signed-off-by: Vitaliy Kuznetsov <vk.en.mail@gmail.com> Link: https://lore.kernel.org/r/20230810143852.40228-1-vk.en.mail@gmail.com Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.