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.
Simona Vetter
authored
It might be good enough on x86 with just READ_ONCE, but the write side should then at least be WRITE_ONCE because x86 has total store order. It's definitely not enough on arm. Fix this proplery, which means - explain the need for the barrier in both places - point at the other side in each comment Also pull out the !sched_list case as the first check, so that the code flow is clearer. While at it sprinkle some comments around because it was very non-obvious to me what's actually going on here and why. Note that we really need full barriers here, at first I thought store-release and load-acquire on ->last_scheduled would be enough, but we actually requiring ordering between that and the queue state. v2: Put smp_rmp() in the right place and fix up comment (Andrey) Reviewed-by:Christian König <christian.koenig@amd.com> Acked-by:
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| include | ||
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| kernel | ||
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| Makefile | ||
| README |