Messages in this thread Patch in this message | | | From | Stephen Boyd <> | Subject | [PATCH] ARM: Don't enable GENERIC_LOCKBREAK with ticket spinlocks | Date | Fri, 3 Aug 2012 15:42:42 -0700 |
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Now that ARM has implemented its spinlocks with tickets we don't need to use the generic lockbreak algorithm. Remove the Kconfig from ARM so that we use the arch_spin_is_contended() definition from the asm header. This also saves a word in each lock because we don't need the break_lock member anymore.
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org> ---
It seems we define the arch_spin_is_contended() macro but we don't use it on SMP && PREEMPT kernels?
arch/arm/Kconfig | 5 ----- 1 file changed, 5 deletions(-)
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig index e91c7cd..e4191cc 100644 --- a/arch/arm/Kconfig +++ b/arch/arm/Kconfig @@ -126,11 +126,6 @@ config TRACE_IRQFLAGS_SUPPORT bool default y -config GENERIC_LOCKBREAK - bool - default y - depends on SMP && PREEMPT - config RWSEM_GENERIC_SPINLOCK bool default y -- Sent by an employee of the Qualcomm Innovation Center, Inc. The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum.
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