kernel_5.10 no rt

hc

2023-12-11 6778948f9de86c3cfaf36725a7c87dcff9ba247f

 kernel/kernel/time/Kconfig
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+# SPDX-License-Identifier: GPL-2.0-only
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 #
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 # Timer subsystem related configuration options
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 #
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 # Architecture has extra clocksource data
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 config ARCH_CLOCKSOURCE_DATA
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+	bool
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+
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+# Architecture has extra clocksource init called from registration
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+config ARCH_CLOCKSOURCE_INIT
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 	bool
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 # Clocksources require validation of the clocksource against the last
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 # Generic update of CMOS clock
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 config GENERIC_CMOS_UPDATE
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 	bool
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+
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+# Select to handle posix CPU timers from task_work
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+# and not from the timer interrupt context
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+config HAVE_POSIX_CPU_TIMERS_TASK_WORK
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+	bool
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+
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+config POSIX_CPU_TIMERS_TASK_WORK
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+	bool
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+	default y if POSIX_TIMERS && HAVE_POSIX_CPU_TIMERS_TASK_WORK
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 if GENERIC_CLOCKEVENTS
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 menu "Timers subsystem"
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 endchoice
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+config CONTEXT_TRACKING
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+       bool
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+
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+config CONTEXT_TRACKING_FORCE
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+	bool "Force context tracking"
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+	depends on CONTEXT_TRACKING
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+	default y if !NO_HZ_FULL
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+	help
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+	  The major pre-requirement for full dynticks to work is to
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+	  support the context tracking subsystem. But there are also
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+	  other dependencies to provide in order to make the full
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+	  dynticks working.
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+
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+	  This option stands for testing when an arch implements the
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+	  context tracking backend but doesn't yet fullfill all the
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+	  requirements to make the full dynticks feature working.
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+	  Without the full dynticks, there is no way to test the support
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+	  for context tracking and the subsystems that rely on it: RCU
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+	  userspace extended quiescent state and tickless cputime
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+	  accounting. This option copes with the absence of the full
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+	  dynticks subsystem by forcing the context tracking on all
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+	  CPUs in the system.
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+
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+	  Say Y only if you're working on the development of an
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+	  architecture backend for the context tracking.
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+
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+	  Say N otherwise, this option brings an overhead that you
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+	  don't want in production.
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+
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 config NO_HZ
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 	bool "Old Idle dynticks config"
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 	depends on !ARCH_USES_GETTIMEOFFSET && GENERIC_CLOCKEVENTS