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4bbf0b6a64
The core freezer logic has been modified by commit f5d39b0208
("freezer,sched: Rewrite core freezer logic"), so adjust the
documentation to reflect the new code. The main changes include:
- Drop references to PF_FROZEN and PF_FREEZER_SKIP
- Describe TASK_FROZEN, TASK_FREEZABLE and __TASK_FREEZABLE_UNSAFE
- Replace system_freezing_cnt with freezer_active
- Use a different example for the loop of a freezable kernel thread,
since the old code is gone gone
Signed-off-by: Kevin Hao <haokexin@gmail.com>
[ rjw: Subject and changelog edits, doc text adjustments ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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.