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Mario Limonciello (AMD) 7425ca69f3 PM: hibernate: Fix hybrid-sleep commit `469d80a371` upstream. Hybrid sleep will hibernate the system followed by running through the suspend routine. Since both the hibernate and the suspend routine will call pm_restrict_gfp_mask(), pm_restore_gfp_mask() must be called before starting the suspend sequence. Add an explicit call to pm_restore_gfp_mask() to power_down() before the suspend sequence starts. Add an extra call for pm_restrict_gfp_mask() when exiting suspend so that the pm_restore_gfp_mask() call in hibernate() is balanced. Reported-by: Ionut Nechita <ionut_n2001@yahoo.com> Closes: https://gitlab.freedesktop.org/drm/amd/-/issues/4573 Tested-by: Ionut Nechita <ionut_n2001@yahoo.com> Fixes: `12ffc3b151` ("PM: Restrict swap use to later in the suspend sequence") Tested-by: Kenneth Crudup <kenny@panix.com> Acked-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Mario Limonciello (AMD) <superm1@kernel.org> Link: https://patch.msgid.link/20250925185108.2968494-2-superm1@kernel.org [ rjw: Add comment explainig the new pm_restrict_gfp_mask() call purpose ] Cc: 6.16+ <stable@vger.kernel.org> # 6.16+ Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		History 2025-10-19 16:37:29 +02:00
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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 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.