Currently smp_reinit_ipl_cpu() is a pre-SMP early initcall. That ensures no CPU is running in parallel, but still not enough to assume the code is exclusive, since the scheduling is already available. Move the function call to arch_call_rest_init() callback to ensure no thread could be preempted and allow lockless allocation of the kernel page tables. That is needed to allow a follow-up rework of the absolute lowcore access mechanism. Suggested-by: Heiko Carstens <hca@linux.ibm.com> Signed-off-by: Alexander Gordeev <agordeev@linux.ibm.com> Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
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.
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