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Message-Id: <1344033762-3296-1-git-send-email-sboyd@codeaurora.org> Date: Fri, 3 Aug 2012 15:42:42 -0700 From: Stephen Boyd <sboyd@...eaurora.org> To: Will Deacon <will.deacon@....com> Cc: linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org Subject: [PATCH] ARM: Don't enable GENERIC_LOCKBREAK with ticket spinlocks 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@...eaurora.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. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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