42 lines
1.5 KiB
Diff
42 lines
1.5 KiB
Diff
From 3c2fbe75f8d09dfb0df20db0768d8c3f5263a92f Mon Sep 17 00:00:00 2001
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Message-Id: <3c2fbe75f8d09dfb0df20db0768d8c3f5263a92f.1599166690.git.zanussi@kernel.org>
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In-Reply-To: <56457dc415803c8abc5acb513ada877a79596f05.1599166690.git.zanussi@kernel.org>
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References: <56457dc415803c8abc5acb513ada877a79596f05.1599166690.git.zanussi@kernel.org>
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From: Thomas Gleixner <tglx@linutronix.de>
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Date: Sun, 17 Jul 2011 21:51:45 +0200
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Subject: [PATCH 042/333] locking: Disable spin on owner for RT
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MIME-Version: 1.0
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Content-Type: text/plain; charset=UTF-8
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Content-Transfer-Encoding: 8bit
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Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.142-rt63.tar.xz
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Drop spin on owner for mutex / rwsem. We are most likely not using it
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but…
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Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
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---
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kernel/Kconfig.locks | 4 ++--
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1 file changed, 2 insertions(+), 2 deletions(-)
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diff --git a/kernel/Kconfig.locks b/kernel/Kconfig.locks
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index 84d882f3e299..af27c4000812 100644
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--- a/kernel/Kconfig.locks
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+++ b/kernel/Kconfig.locks
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@@ -225,11 +225,11 @@ config ARCH_SUPPORTS_ATOMIC_RMW
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config MUTEX_SPIN_ON_OWNER
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def_bool y
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- depends on SMP && ARCH_SUPPORTS_ATOMIC_RMW
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+ depends on SMP && ARCH_SUPPORTS_ATOMIC_RMW && !PREEMPT_RT_FULL
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config RWSEM_SPIN_ON_OWNER
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def_bool y
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- depends on SMP && RWSEM_XCHGADD_ALGORITHM && ARCH_SUPPORTS_ATOMIC_RMW
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+ depends on SMP && RWSEM_XCHGADD_ALGORITHM && ARCH_SUPPORTS_ATOMIC_RMW && !PREEMPT_RT_FULL
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config LOCK_SPIN_ON_OWNER
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def_bool y
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--
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2.17.1
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