[IA64] Turn on CONFIG_HAVE_UNSTABLE_CLOCK · 0773a6cf67 - Gogs

[IA64] Turn on CONFIG_HAVE_UNSTABLE_CLOCK

sched_clock() on ia64 is based on ar.itc, so is never
completely synchronized between cpus. On some platforms
(e.g. certain models of SGI Altix) it may be running at
radically different frequencies.

Based on a patch from Dimitri Sivanich which set this
just for SN2 && GENERIC kernels ... it is needed for
all ia64 machines.

Signed-off-by: Tony Luck <tony.luck@intel.com>

Tony Luck 16 years ago

parent

7a0b6e0143

commit

0773a6cf67

1 changed files with 1 additions and 0 deletions

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arch/ia64/Kconfig
							 
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				@@ -17,6 +17,7 @@ config IA64
			
				 	select ACPI if (!IA64_HP_SIM)
			
				 	select PM if (!IA64_HP_SIM)
			
				 	select ARCH_SUPPORTS_MSI
			
				+	select HAVE_UNSTABLE_SCHED_CLOCK
			
				 	select HAVE_IDE
			
				 	select HAVE_OPROFILE
			
				 	select HAVE_KPROBES