2018-08-27 14:32:32 +00:00
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From: Thomas Gleixner <tglx@linutronix.de>
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Date: Sun, 26 Jul 2009 02:21:32 +0200
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Subject: x86: Use generic rwsem_spinlocks on -rt
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2019-02-27 18:51:46 +00:00
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Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.25-rt16.tar.xz
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2018-08-27 14:32:32 +00:00
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Simplifies the separation of anon_rw_semaphores and rw_semaphores for
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-rt.
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Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
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---
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arch/x86/Kconfig | 5 ++++-
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1 file changed, 4 insertions(+), 1 deletion(-)
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--- a/arch/x86/Kconfig
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+++ b/arch/x86/Kconfig
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2018-10-30 12:40:05 +00:00
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@@ -264,8 +264,11 @@ config ARCH_MAY_HAVE_PC_FDC
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2018-08-27 14:32:32 +00:00
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def_bool y
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depends on ISA_DMA_API
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+config RWSEM_GENERIC_SPINLOCK
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+ def_bool PREEMPT_RT_FULL
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+
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config RWSEM_XCHGADD_ALGORITHM
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- def_bool y
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+ def_bool !RWSEM_GENERIC_SPINLOCK && !PREEMPT_RT_FULL
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config GENERIC_CALIBRATE_DELAY
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def_bool y
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