Subject: percpu: Replace __get_cpu_var with this_cpu_ptr

One case of using __get_cpu_var in the get_cpu_var macro
for address calculation.

Signed-off-by: Christoph Lameter <[email protected]>

Index: linux/include/linux/percpu.h
===================================================================
--- linux.orig/include/linux/percpu.h 2014-04-14 13:24:54.669364001 -0500
+++ linux/include/linux/percpu.h 2014-04-14 13:24:54.661364156 -0500
@@ -29,7 +29,7 @@
*/
#define get_cpu_var(var) (*({ \
preempt_disable(); \
- &__get_cpu_var(var); }))
+ this_cpu_ptr(&var); }))

/*
* The weird & is necessary because sparse considers (void)(var) to be


2014-04-15 18:24:18

by Tejun Heo

[permalink] [raw]
Subject: [PATCH] percpu: Replace __get_cpu_var with this_cpu_ptr

Applied to percpu/for-3.16 with patch description updated.

Thanks.

--------- 8< ---------
>From fdb9c293decf7e06795f7d9ae409df907c7ae1b6 Mon Sep 17 00:00:00 2001
From: Christoph Lameter <[email protected]>
Date: Tue, 15 Apr 2014 12:39:14 -0500

__this_cpu_ptr is being phased out. Use raw_cpu_ptr instead which was
introduced in 3.15-rc1. One case of using __get_cpu_var in the
get_cpu_var macro for address calculation was remaining in
include/linux/percpu.h.

tj: Updated patch description.

Signed-off-by: Christoph Lameter <[email protected]>
Signed-off-by: Tejun Heo <[email protected]>
---
include/linux/percpu.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/linux/percpu.h b/include/linux/percpu.h
index e7a0b95..539b3ca 100644
--- a/include/linux/percpu.h
+++ b/include/linux/percpu.h
@@ -29,7 +29,7 @@
*/
#define get_cpu_var(var) (*({ \
preempt_disable(); \
- &__get_cpu_var(var); }))
+ this_cpu_ptr(&var); }))

/*
* The weird & is necessary because sparse considers (void)(var) to be
--
1.9.0