linux-kernel - Re: Final per cpu consistency patch for -next or late in 3.19 merge period

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Date:	Tue, 2 Dec 2014 11:33:15 -0600 (CST)
From:	Christoph Lameter <cl@...ux.com>
To:	Tejun Heo <htejun@...il.com>
cc:	linux-kernel@...r.kernel.org,
	Andrew Morton <akpm@...ux-foundation.org>,
	Tony Luck <tony.luck@...el.com>,
	Fenghua Yu <fenghua.yu@...el.com>
Subject: Re: Final per cpu consistency patch for -next or late in 3.19 merge
 period

On Tue, 2 Dec 2014, Tejun Heo wrote:

> Sure, I just wanna make sure we don't have dangling references to
> __get_cpu_var() which no longer exists.  There are also a couple
> places where comment text refers to it.  Let's please take care of
> them too.

Here is the ia64 patch:


From: Christoph Lameter <cl@...ux.com>
Subject: ia64: Update comment that references __get_cpu_var

__get_cpu_var was removed. Update the comments.

Cc: Tony Luck <tony.luck@...el.com>
Cc: Fenghua Yu <fenghua.yu@...el.com>
Signed-off-by: Christoph Lameter <cl@...ux.com>

Index: linux/arch/ia64/include/asm/percpu.h
===================================================================
--- linux.orig/arch/ia64/include/asm/percpu.h
+++ linux/arch/ia64/include/asm/percpu.h
@@ -35,8 +35,8 @@ extern void *per_cpu_init(void);

 /*
  * Be extremely careful when taking the address of this variable!  Due to virtual
- * remapping, it is different from the canonical address returned by __get_cpu_var(var)!
- * On the positive side, using __ia64_per_cpu_var() instead of __get_cpu_var() is slightly
+ * remapping, it is different from the canonical address returned by this_cpu_ptr(&var)!
+ * On the positive side, using __ia64_per_cpu_var() instead of this_cpu_ptr() is slightly
  * more efficient.
  */
 #define __ia64_per_cpu_var(var) (*({					\
--
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