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There are some expectations regarding how sched domain flags should be laid
out, but none of them are checked or asserted in
sched_domain_debug_one(). After staring at said flags for a while, I've
come to realize there's two repeating patterns:
- Shared with children: those flags are set from the base CPU domain
upwards. Any domain that has it set will have it set in its children. It
hints at "some property holds true / some behaviour is enabled until this
level".
- Shared with parents: those flags are set from the topmost domain
downwards. Any domain that has it set will have it set in its parents. It
hints at "some property isn't visible / some behaviour is disabled until
this level".
There are two outliers that (currently) do not map to either of these:
o SD_PREFER_SIBLING, which is cleared below levels with
SD_ASYM_CPUCAPACITY. The change was introduced by commit:
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| kernel | ||
| lib | ||
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| README | ||
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.