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4a74e41888
A user can pre-configure certain CPUs in an isolated state at boot time with the "isolcpus" kernel boot command line option. Those CPUs will not be in the housekeeping_cpumask(HK_TYPE_DOMAIN) and so will not be in any sched domains. This may conflict with the partition setup at runtime. Those boot time isolated CPUs should only be used in an isolated partition. This patch adds the necessary check and disallows partition setup if the check fails. Signed-off-by: Waiman Long <longman@redhat.com> Signed-off-by: Tejun Heo <tj@kernel.org>
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.