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27db824600
Introduce the partition_cpus_change function to handle both regular CPU set updates and exclusive CPU modifications, either of which may trigger partition state changes. This generalized function will also be utilized for exclusive CPU updates in subsequent patches. With the introduction of compute_trialcs_excpus in a previous patch, the trialcs->effective_xcpus field is now consistently computed and maintained. Consequently, the legacy logic which assigned **trialcs->allowed_cpus to a local 'xcpus' variable** when trialcs->effective_xcpus was empty has been removed. This removal is safe because when trialcs is not a partition member, trialcs->effective_xcpus is now correctly populated with the intersection of user_xcpus and the parent's effective_xcpus. This calculation inherently covers the scenario previously handled by the removed code. Signed-off-by: Chen Ridong <chenridong@huawei.com> Reviewed-by: Waiman Long <longman@redhat.com> Signed-off-by: Tejun Heo <tj@kernel.org> |
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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 reStructuredText 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.