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7c09f4281c
According to 'admin-guide/mm/memory-hotplug.rst', the memory block ID, instead of the section index, is shown by '/sys/devices/system/memory/ memoryX/phys_index'. Fix the comments to match with 'admin-guide/mm/memory-hotplug.rst'. Besides, use the existing helper memory_block_id() to convert the section index to the memory block index. No functional change intended. Signed-off-by: Gavin Shan <gshan@redhat.com> Link: https://lore.kernel.org/r/20230120055727.355483-2-gshan@redhat.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.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.