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In order to convert kmap() used in cpfile to kmap_local, first move the checkpoint creation routine, which is one of the places where kmap is used, to the cpfile side and make the page mapping local and temporary. And use kmap_local instead of kmap to access the checkpoint entry page (and header block page) when generating a checkpoint. Link: https://lkml.kernel.org/r/20240122140202.6950-12-konishi.ryusuke@gmail.com Signed-off-by: Ryusuke Konishi <konishi.ryusuke@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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.