From: jszhang@marvell.com (Jisheng Zhang)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH] ARM: cpuidle: declare cpuidle_ops __read_mostly
Date: Wed, 10 Aug 2016 16:49:57 +0800 [thread overview]
Message-ID: <1470818997-808-1-git-send-email-jszhang@marvell.com> (raw)
cpuidle_ops is initialized once by arm_cpuidle_read_ops() during
initialization, and thereafter is mostly read in arm_cpuidle_suspend()
The fact that it is mostly read and not written to makes it candidates
for __read_mostly declarations.
Signed-off-by: Jisheng Zhang <jszhang@marvell.com>
---
arch/arm/kernel/cpuidle.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/arm/kernel/cpuidle.c b/arch/arm/kernel/cpuidle.c
index 7dccc96..762e0929 100644
--- a/arch/arm/kernel/cpuidle.c
+++ b/arch/arm/kernel/cpuidle.c
@@ -19,7 +19,7 @@ extern struct of_cpuidle_method __cpuidle_method_of_table[];
static const struct of_cpuidle_method __cpuidle_method_of_table_sentinel
__used __section(__cpuidle_method_of_table_end);
-static struct cpuidle_ops cpuidle_ops[NR_CPUS];
+static struct cpuidle_ops cpuidle_ops[NR_CPUS] __read_mostly;
/**
* arm_cpuidle_simple_enter() - a wrapper to cpu_do_idle()
--
2.8.1
next reply other threads:[~2016-08-10 8:49 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-08-10 8:49 Jisheng Zhang [this message]
2016-08-10 8:57 ` [PATCH] ARM: cpuidle: declare cpuidle_ops __read_mostly Arnd Bergmann
2016-08-10 9:19 ` Jisheng Zhang
2016-08-10 10:47 ` Arnd Bergmann
2016-08-10 11:06 ` Jisheng Zhang
2016-08-10 9:54 ` Jisheng Zhang
2016-08-10 10:49 ` Arnd Bergmann
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