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90b8fab5cd
It looks rather weird that totalhigh_pages() returns an "unsigned long" but nr_free_highpages() returns an "unsigned int". Let's return an "unsigned long" from nr_free_highpages() to be consistent. While at it, use a plain "0" instead of a "0UL" in the !CONFIG_HIGHMEM totalhigh_pages() implementation, to make these look alike as well. Link: https://lkml.kernel.org/r/20240607083711.62833-3-david@redhat.com Signed-off-by: David Hildenbrand <david@redhat.com> Reviewed-by: Wei Yang <richard.weiyang@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 reStructuredText 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.