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13a695aa50
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. -----BEGIN PGP SIGNATURE----- iQGzBAABCgAdFiEE+9lifEBpyUIVN1cpw08iOZLZjyQFAmFR3FQACgkQw08iOZLZ jySeZQwAoeDNTyw6YEZO1A8zhvzv0o3tuq2ifWTK2p8P6sJ9dbbghCN1wZtaYhcz YM7rDHGRlu9wT1ad/fYEsZTRnZ6/RlrKoJKF8921mXIMBRHPC4KXDJwsXxvZAjS8 MB4FEPPN80H3MLIR4d16NBlVjcXuQ+J5+mBMcFRIP2zSdOTFkgS7yCP8dy+ryDLe TDJvh/N7ig6DszEEKo7uLIRSt2MIYN7rHPVuKxDDHgKLq/bYDxh+qHprXwhtnxWw CGlUmOXBSFuSMyAQ1WHr4ZDyHolfL89U++a+ZH/TQB38PY/2bCCdUbx5np7q7Jv5 n/eL5Up70+gx9FH7XIAXRpPKJzrQEn0vrQLKBsOLqBNX1lXH1I/IE+GavfRLXbkV 9ZEo1hj/v1DiLQdrCuoxMFwXZryQ5/KQfolFEjPKS6bbqStAO1S3jrEQtzt2JGo3 PW5UA0ZQC1nwc/l9GoG/AEm1QV4aHxKqLdFQV0L/ZBN0KOL+xsJYb7dm8mIhLzzh xGWDOD7a =fGHe -----END PGP SIGNATURE----- Merge tag 'pr-arm32-ti-in-task' of git://git.kernel.org/pub/scm/linux/kernel/git/ardb/linux into devel-stable 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. |
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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.