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

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    Revision 606 - (show annotations) (download)
    Thu May 22 23:13:13 2008 UTC (15 years, 11 months ago) by niro
    File size: 891 byte(s) 
    -ver bump to 2.6.25-magellan-r1:
- linux-2.6.25.4
- fbcondecor-0.9.4
- squashfs-3.3
- unionfs-2.3.3
- tuxonice-3.0-rc7
- linux-phc-0.3.0
- acpi-dstd-0.9a
- reiser4
- xen-3.2.0
. ipw3945-1.2.2
    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