From 34ae9c915f9d12f1ddaa19a23fb3e8984e6a1098 Mon Sep 17 00:00:00 2001
From: Chad Reese <kreese@caviumnetworks.com>
Date: Fri, 15 Sep 2017 12:31:28 -0500
Subject: [PATCH] MIPS: Add nudges to writes for bit unlocks.
Flushing the writes lets other CPUs waiting for the lock to get it sooner.
Signed-off-by: Chad Reese <kreese@caviumnetworks.com>
Signed-off-by: David Daney <david.daney@cavium.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/17289/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
---
arch/mips/include/asm/bitops.h | 1 +
1 file changed, 1 insertion(+)
diff --git a/arch/mips/include/asm/bitops.h b/arch/mips/include/asm/bitops.h
index fa57cef12a466..da1b8718861e0 100644
--- a/arch/mips/include/asm/bitops.h
+++ b/arch/mips/include/asm/bitops.h
@@ -456,6 +456,7 @@ static inline void __clear_bit_unlock(unsigned long nr, volatile unsigned long *
{
smp_mb__before_llsc();
__clear_bit(nr, addr);
+ nudge_writes();
}
/*
--
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