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68f4f0378c
There is a race condition between acpi_thermal_trips_update() and acpi_thermal_check_fn(), because the trip points may get updated while the latter is running which in theory may lead to inconsistent results. For example, if two trips are updated together, using the temperature value of one of them from before the update and the temperature value of the other one from after the update may not lead to the expected outcome. Moreover, if thermal_get_trend() runs when a trip points update is in progress, it may end up using stale trip point temperatures. To address this, make acpi_thermal_trips_update() call thermal_zone_device_exec() to carry out the trip points update and use a new acpi_thermal_adjust_thermal_zone() wrapper around __acpi_thermal_trips_update() as the callback function for the latter. While at it, change the acpi_thermal_trips_update() return data type to void as that function always returns 0 anyway. Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@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 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.