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Baoquan He 8ad4184985 mm/mm_init.c: add new function calc_nr_all_pages()
This is a preparation to calculate nr_kernel_pages and nr_all_pages, both
of which will be used later in alloc_large_system_hash().

nr_all_pages counts up all free but not reserved memory in memblock
allocator, including HIGHMEM memory.  While nr_kernel_pages counts up all
free but not reserved low memory in memblock allocator, excluding HIGHMEM
memory.

Link: https://lkml.kernel.org/r/20240325145646.1044760-4-bhe@redhat.com
Signed-off-by: Baoquan He <bhe@redhat.com>
Reviewed-by: Mike Rapoport (IBM) <rppt@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
History 2024-04-25 20:56:10 -07:00
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README

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.