kernel_5.10 no rt

hc

2023-12-11 6778948f9de86c3cfaf36725a7c87dcff9ba247f

 kernel/kernel/power/Kconfig
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+# SPDX-License-Identifier: GPL-2.0-only
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 config SUSPEND
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 	bool "Suspend to RAM and standby"
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 	depends on ARCH_SUSPEND_POSSIBLE
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 	default y
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-	---help---
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+	help
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 	  Allow the system to enter sleep states in which main memory is
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 	  powered and thus its contents are preserved, such as the
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 	  suspend-to-RAM state (e.g. the ACPI S3 state).
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 	  Skip the kernel sys_sync() before freezing user processes.
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 	  Some systems prefer not to pay this cost on every invocation
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 	  of suspend, or they are content with invoking sync() from
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-	  user-space before invoking suspend.  Say Y if that's your case.
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-
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-config HAS_WAKELOCK
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-	bool
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-	default y
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-
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-config WAKELOCK
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-	bool
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-	default y
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+	  user-space before invoking suspend.  There's a run-time switch
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+	  at '/sys/power/sync_on_suspend' to configure this behaviour.
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+	  This setting changes the default for the run-tim switch. Say Y
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+	  to change the default to disable the kernel sys_sync().
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 config HIBERNATE_CALLBACKS
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 	bool
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 	select LZO_COMPRESS
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 	select LZO_DECOMPRESS
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 	select CRC32
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-	---help---
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+	help
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 	  Enable the suspend to disk (STD) functionality, which is usually
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 	  called "hibernation" in user interfaces.  STD checkpoints the
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 	  system and powers it off; and restores that checkpoint on reboot.
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 	  need to run mkswap against the swap partition used for the suspend.
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 	  It also works with swap files to a limited extent (for details see
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-	  <file:Documentation/power/swsusp-and-swap-files.txt>).
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+	  <file:Documentation/power/swsusp-and-swap-files.rst>).
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 	  Right now you may boot without resuming and resume later but in the
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 	  meantime you cannot use the swap partition(s)/file(s) involved in
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 	  MOUNT any journaled filesystems mounted before the suspend or they
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 	  will get corrupted in a nasty way.
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-	  For more information take a look at <file:Documentation/power/swsusp.txt>.
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+	  For more information take a look at <file:Documentation/power/swsusp.rst>.
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-config ARCH_SAVE_PAGE_KEYS
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-	bool
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+config HIBERNATION_SNAPSHOT_DEV
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+	bool "Userspace snapshot device"
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+	depends on HIBERNATION
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+	default y
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+	help
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+	  Device used by the uswsusp tools.
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+
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+	  Say N if no snapshotting from userspace is needed, this also
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+	  reduces the attack surface of the kernel.
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+	  If in doubt, say Y.
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 config PM_STD_PARTITION
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 	string "Default resume partition"
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 	depends on HIBERNATION
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 	default ""
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-	---help---
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+	help
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 	  The default resume partition is the partition that the suspend-
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 	  to-disk implementation will look for a suspended disk image. 
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 	depends on PM_SLEEP
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 	select HOTPLUG_CPU
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+config PM_SLEEP_SMP_NONZERO_CPU
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+	def_bool y
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+	depends on PM_SLEEP_SMP
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+	depends on ARCH_SUSPEND_NONZERO_CPU
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+	help
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+	If an arch can suspend (for suspend, hibernate, kexec, etc) on a
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+	non-zero numbered CPU, it may define ARCH_SUSPEND_NONZERO_CPU. This
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+	will allow nohz_full mask to include CPU0.
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+
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 config PM_AUTOSLEEP
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 	bool "Opportunistic sleep"
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 	depends on PM_SLEEP
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 	default n
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-	---help---
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+	help
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 	Allow the kernel to trigger a system transition into a global sleep
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 	state automatically whenever there are no active wakeup sources.
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 	bool "User space wakeup sources interface"
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 	depends on PM_SLEEP
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 	default n
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-	---help---
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+	help
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 	Allow user space to create, activate and deactivate wakeup source
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 	objects with the help of a sysfs-based interface.
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 config PM
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 	bool "Device power management core functionality"
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-	---help---
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+	help
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 	  Enable functionality allowing I/O devices to be put into energy-saving
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 	  (low power) states, for example after a specified period of inactivity
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 	  (autosuspended), and woken up in response to a hardware-generated
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 config PM_DEBUG
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 	bool "Power Management Debug Support"
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 	depends on PM
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-	---help---
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+	help
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 	This option enables various debugging support in the Power Management
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 	code. This is helpful when debugging and reporting PM bugs, like
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 	suspend support.
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 config PM_ADVANCED_DEBUG
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 	bool "Extra PM attributes in sysfs for low-level debugging/testing"
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 	depends on PM_DEBUG
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-	---help---
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+	help
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 	Add extra sysfs attributes allowing one to access some Power Management
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 	fields of device objects from user space.  If you are not a kernel
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 	developer interested in debugging/testing Power Management, say "no".
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 config PM_TEST_SUSPEND
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 	bool "Test suspend/resume and wakealarm during bootup"
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 	depends on SUSPEND && PM_DEBUG && RTC_CLASS=y
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-	---help---
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+	help
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 	This option will let you suspend your machine during bootup, and
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 	make it wake up a few seconds later using an RTC wakeup alarm.
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 	Enable this with a kernel parameter like "test_suspend=mem".
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 config DPM_WATCHDOG
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 	bool "Device suspend/resume watchdog"
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 	depends on PM_DEBUG && PSTORE && EXPERT
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-	---help---
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+	help
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 	  Sets up a watchdog timer to capture drivers that are
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 	  locked up attempting to suspend/resume a device.
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 	  A detected lockup causes system panic with message
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 	depends on PM_SLEEP_DEBUG
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 	depends on X86
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 	select PM_TRACE
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-	---help---
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+	help
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 	This enables some cheesy code to save the last PM event point in the
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 	RTC across reboots, so that you can debug a machine that just hangs
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 	during suspend (or more commonly, during resume).
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 	  notification of APM "events" (e.g. battery status change).
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 	  In order to use APM, you will need supporting software. For location
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-	  and more information, read <file:Documentation/power/apm-acpi.txt>
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+	  and more information, read <file:Documentation/power/apm-acpi.rst>
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 	  and the Battery Powered Linux mini-HOWTO, available from
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 	  <http://www.tldp.org/docs.html#howto>.
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