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When a local partition becomes invalid, it won't transition back to valid partition automatically if a proper "cpuset.cpus.exclusive" or "cpuset.cpus" change is made. Instead, system administrators have to explicitly echo "root" or "isolated" into the "cpuset.cpus.partition" file at the partition root. This patch now enables the automatic transition of an invalid local partition back to valid when there is a proper "cpuset.cpus.exclusive" or "cpuset.cpus" change. Automatic transition of an invalid remote partition to a valid one, however, is not covered by this patch. They still need an explicit write to "cpuset.cpus.partition" to become valid again. The test_cpuset_prs.sh test script is updated to add new test cases to test this automatic state transition. Reported-by: Pierre Gondois <pierre.gondois@arm.com> Link: https://lore.kernel.org/lkml/9777f0d2-2fdf-41cb-bd01-19c52939ef42@arm.com Signed-off-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 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.