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Subject[PATCH v7 2/4] spinlock: Enable x86 architecture to do lockless refcount update
Date
This patch enables the x86 architecture to do lockless reference
count update using the generic lockref implementation with default
parameters. Only the x86/Kconfig file needs to be changed.

Signed-off-by: Waiman Long <Waiman.Long@hp.com>
---
arch/x86/Kconfig | 3 +++
1 files changed, 3 insertions(+), 0 deletions(-)

diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index b32ebf9..79a9309 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -262,6 +262,9 @@ config ARCH_CPU_PROBE_RELEASE
config ARCH_SUPPORTS_UPROBES
def_bool y

+config GENERIC_SPINLOCK_REFCOUNT
+ def_bool y
+
source "init/Kconfig"
source "kernel/Kconfig.freezer"

--
1.7.1


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