pSeries/powerNV will use qspinlock from now on. Signed-off-by: Pan Xinhui <xinhui.pan@xxxxxxxxxxxxxxxxxx> --- arch/powerpc/platforms/pseries/Kconfig | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/arch/powerpc/platforms/pseries/Kconfig b/arch/powerpc/platforms/pseries/Kconfig index bec90fb..8a87d06 100644 --- a/arch/powerpc/platforms/pseries/Kconfig +++ b/arch/powerpc/platforms/pseries/Kconfig @@ -23,6 +23,14 @@ config PPC_PSERIES select PPC_DOORBELL default y +config ARCH_USE_QUEUED_SPINLOCKS + default y + bool "Enable qspinlock" + help + Enabling this option will let kernel use qspinlock which is a kind of + fairlock. It has shown a good performance improvement on x86 and also ppc + especially in high contention cases. + config PPC_SPLPAR depends on PPC_PSERIES bool "Support for shared-processor logical partitions" -- 2.4.11 _______________________________________________ Virtualization mailing list Virtualization@xxxxxxxxxxxxxxxxxxxxxxxxxx https://lists.linuxfoundation.org/mailman/listinfo/virtualization
