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f436cb6913
Resctrl resources operate on subsets of CPUs in the system with the defining attribute of each subset being an instance of a particular level of cache. E.g. all CPUs sharing an L3 cache would be part of the same domain. In preparation for features that are scoped at the NUMA node level, change the code from explicit references to "cache_level" to a more generic scope. At this point the only options for this scope are groups of CPUs that share an L2 cache or L3 cache. Clean up the error handling when looking up domains. Report invalid ids before calling rdt_find_domain() in preparation for better messages when scope can be other than cache scope. This means that rdt_find_domain() will never return an error. So remove checks for error from the call sites. Signed-off-by: Tony Luck <tony.luck@intel.com> Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de> Reviewed-by: Reinette Chatre <reinette.chatre@intel.com> Tested-by: Babu Moger <babu.moger@amd.com> Link: https://lore.kernel.org/r/20240628215619.76401-2-tony.luck@intel.com |
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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.