kernel26-xen/patches-2.6.25-r1/1032-2.6.25-xen-x86_64-Add-hacky-64-bit-x86_-read-write-_percpu.patch

From 8678e0caab8cd32d1d5cb5e603287cdb2f414ccb Mon Sep 17 00:00:00 2001
From: Eduardo Habkost <ehabkost@Rawhide-64.localdomain>
Date: Tue, 27 Nov 2007 18:21:29 -0200
Subject: [PATCH] xen x86_64: Add hacky 64-bit x86_{read,write}_percpu()

It isn't implemented on x86_64 yet, so I am simply using __get_cpu_var().

Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
---
 include/asm-x86/percpu.h |    4 ++++
 1 files changed, 4 insertions(+), 0 deletions(-)

diff --git a/include/asm-x86/percpu.h b/include/asm-x86/percpu.h
index 0dec00f..b80af66 100644
--- a/include/asm-x86/percpu.h
+++ b/include/asm-x86/percpu.h
@@ -22,6 +22,10 @@
 
 DECLARE_PER_CPU(struct x8664_pda, pda);
 
+/* x86_read_percpu & friends */
+#define x86_read_percpu(var) __get_cpu_var(var)
+#define x86_write_percpu(var,val) (__get_cpu_var(var) = (val))
+
 #else /* CONFIG_X86_64 */
 
 #ifdef __ASSEMBLY__
-- 
1.5.4.1

1	From 8678e0caab8cd32d1d5cb5e603287cdb2f414ccb Mon Sep 17 00:00:00 2001
2	From: Eduardo Habkost <ehabkost@Rawhide-64.localdomain>
3	Date: Tue, 27 Nov 2007 18:21:29 -0200
4	Subject: [PATCH] xen x86_64: Add hacky 64-bit x86_{read,write}_percpu()
5
6	It isn't implemented on x86_64 yet, so I am simply using __get_cpu_var().
7
8	Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
9	---
10	include/asm-x86/percpu.h \| 4 ++++
11	1 files changed, 4 insertions(+), 0 deletions(-)
12
13	diff --git a/include/asm-x86/percpu.h b/include/asm-x86/percpu.h
14	index 0dec00f..b80af66 100644
15	--- a/include/asm-x86/percpu.h
16	+++ b/include/asm-x86/percpu.h
17	@@ -22,6 +22,10 @@
18
19	DECLARE_PER_CPU(struct x8664_pda, pda);
20
21	+/* x86_read_percpu & friends */
22	+#define x86_read_percpu(var) __get_cpu_var(var)
23	+#define x86_write_percpu(var,val) (__get_cpu_var(var) = (val))
24	+
25	#else /* CONFIG_X86_64 */
26
27	#ifdef __ASSEMBLY__
28	--
29	1.5.4.1
30