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Michael Ellerman
3027a37c06
We have some interesting code in our Makefile to define _TASK_CPU, based on awk'ing the value out of asm-offsets.h. It exists to circumvent some circular header dependencies that prevent us from referring to task_struct in the relevant code. See the comment around _TASK_CPU in smp.h for more detail. Maybe one day we can come up with a better solution, but for now we can at least limit that logic to 32-bit, because it's not needed for 64-bit. Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/20210418131641.1186227-1-mpe@ellerman.id.au
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.