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Simplify the loop looking up a candidate idle state in the case when an intercept is likely to occur by adding a search for the state index limit if the tick is stopped before it. First, call tick_nohz_tick_stopped() just once and if it returns true, look for the shallowest state index below the current candidate one with target residency at least equal to the tick period length. Next, simply look for a state that is not shallower than the one found in the previous step and satisfies the intercepts majority condition (if there are no such states, the shallowest state that is not shallower than the one found in the previous step becomes the new candidate). Since teo_state_ok() has no callers any more after the above changes, drop it. No intentional functional impact. Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Reviewed-by: Christian Loehle <christian.loehle@arm.com> [ rjw: Changelog clarification and code comment edit ] Link: https://patch.msgid.link/2418792.ElGaqSPkdT@rafael.j.wysocki 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 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.