sched, x86: add HAVE_UNSTABLE_SCHED_CLOCK
add the HAVE_UNSTABLE_SCHED_CLOCK, for architectures to select. the next change utilizes it. Signed-off-by: Ingo Molnar <mingo@elte.hu>
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@ -18,6 +18,7 @@ config X86_64
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### Arch settings
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config X86
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def_bool y
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select HAVE_UNSTABLE_SCHED_CLOCK
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select HAVE_IDE
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select HAVE_OPROFILE
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select HAVE_KPROBES
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@ -316,6 +316,12 @@ config CPUSETS
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Say N if unsure.
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#
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# Architectures with an unreliable sched_clock() should select this:
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#
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config HAVE_UNSTABLE_SCHED_CLOCK
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bool
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config GROUP_SCHED
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bool "Group CPU scheduler"
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default y
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