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7aef376679
Make sure CURRENT_THREAD_INFO() is used with r1 which is the virtual address of the stack, in order to ease the switch to r2 when we enable THREAD_INFO_IN_TASK, as we have no register having the phys address of current. Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr> [mpe: Split out of larger patch] Signed-off-by: Michael Ellerman <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.