linux-kernel - [PATCH 0/2] percpu: remove this_cpu

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Date:	Mon, 21 Oct 2013 13:25:35 +0200
From:	Heiko Carstens <heiko.carstens@...ibm.com>
To:	Andrew Morton <akpm@...ux-foundation.org>,
	Christoph Lameter <cl@...ux-foundation.org>,
	Tejun Heo <tj@...nel.org>
Cc:	"H. Peter Anvin" <hpa@...or.com>, Ingo Molnar <mingo@...e.hu>,
	Thomas Gleixner <tglx@...utronix.de>,
	linux-kernel@...r.kernel.org,
	Heiko Carstens <heiko.carstens@...ibm.com>
Subject: [PATCH 0/2] percpu: remove this_cpu_xor()

While optimizing and testing s390's this_cpu ops I realized that
this_cpu_xor() generates broken code ("or" instead of "xor").

Since there is not a single user in the whole kernel tree it seems
to be a good opportunity to simply remove it instead of fixing it.

These two patches only remove the generic and x86 variant. It doesn't
touch s390 since it would only generate a merge conflict later on.
I will take care of s390 anyway if the consensus is that it should be
removed.

Heiko Carstens (2):
  percpu: remove this_cpu_xor() implementation
  x86: remove this_cpu_xor() implementation

 arch/x86/include/asm/percpu.h |  8 --------
 include/linux/percpu.h        | 32 --------------------------------
 2 files changed, 40 deletions(-)

-- 
1.8.3.4

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