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13a695aa50
ARM: support THREAD_INFO_IN_TASK Move thread_info off the stack and into the task struct, as is done by many other architectures. This requires a method to find the task struct of the task currently running on the CPU, which is provided in this case by the user space TLS (Thread Local Storage) register. This implies that the feature is only supported on CPUs that implement this register, i.e., ARM v6k or later. Kindly tested by Amit and reviewed by Linus. The first patch is against the GCC plugins subsystem, but was reviewed by the maintainer and can be taken through the ARM tree.
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.