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    Subject[RFC 09/15] x86_64: Replace xxx_pda() operations in include_asm-x86_percpu_h
      * It is now possible to use percpu operations for pda access
    since the pda is in the percpu area. Drop the pda operations.

    Thus:

    read_pda --> x86_read_percpu
    write_pda --> x86_write_percpu
    add_pda (+1) --> x86_inc_percpu
    or_pda --> x86_or_percpu

    Based on linux-2.6.tip/master

    Signed-off-by: Christoph Lameter <cl@linux-foundation.org>
    Signed-off-by: Mike Travis <travis@sgi.com>
    ---
    include/asm-x86/percpu.h | 2 +-
    1 file changed, 1 insertion(+), 1 deletion(-)

    --- linux-2.6.tip.orig/include/asm-x86/percpu.h 2008-07-01 10:41:33.000000000 -0700
    +++ linux-2.6.tip/include/asm-x86/percpu.h 2008-07-01 10:49:14.432325788 -0700
    @@ -7,7 +7,7 @@

    /* Same as asm-generic/percpu.h, except we use %gs as a segment offset. */
    #ifdef CONFIG_SMP
    -#define __my_cpu_offset read_pda(data_offset)
    +#define __my_cpu_offset (x86_read_percpu(pda.data_offset))
    #define __percpu_seg "%%gs:"
    #else
    #define __percpu_seg ""
    --


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