[RFC 06/15] x86_64: Replace xxx_pda() operations in include_asm-x86_current_h

[Mike Travis]

  * 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@xxxxxxxxxxxxxxxxxxxx>
Signed-off-by: Mike Travis <travis@xxxxxxx>
---
 include/asm-x86/current.h |    3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

--- linux-2.6.tip.orig/include/asm-x86/current.h	2008-07-01 10:41:33.000000000 -0700
+++ linux-2.6.tip/include/asm-x86/current.h	2008-07-01 10:49:13.764285143 -0700
@@ -17,12 +17,13 @@ static __always_inline struct task_struc
 
 #ifndef __ASSEMBLY__
 #include <asm/pda.h>
+#include <asm/percpu.h>
 
 struct task_struct;
 
 static __always_inline struct task_struct *get_current(void)
 {
-	return read_pda(pcurrent);
+	return x86_read_percpu(pda.pcurrent);
 }
 
 #else /* __ASSEMBLY__ */

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