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The differences between kmap_local_page() and kmap_local_folio() consist only in the first taking a pointer to a page and the second taking two arguments, a pointer to a folio and the byte offset within the folio which identifies the page. The two API's can be explained at the same time in the "Temporary Virtual Mappings" section of the Highmem's documentation. Add information about kmap_local_folio() in the same subsection that explains kmap_local_page(). Cc: Andrew Morton <akpm@linux-foundation.org> Reviewed-by: Ira Weiny <ira.weiny@intel.com> Reviewed-by: Mike Rapoport (IBM) <rppt@kernel.org> Signed-off-by: Fabio M. De Francesco <fmdefrancesco@gmail.com> Signed-off-by: Jonathan Corbet <corbet@lwn.net> Link: https://lore.kernel.org/r/20230708121719.8270-1-fmdefrancesco@gmail.com
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.