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# ifndef _ASM_GENERIC_PERCPU_H_
# define _ASM_GENERIC_PERCPU_H_
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# include <linux/compiler.h>
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# include <linux/threads.h>
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# include <linux/percpu-defs.h>
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# ifdef CONFIG_SMP
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/*
* per_cpu_offset ( ) is the offset that has to be added to a
* percpu variable to get to the instance for a certain processor .
*
* Most arches use the __per_cpu_offset array for those offsets but
* some arches have their own ways of determining the offset ( x86_64 , s390 ) .
*/
# ifndef __per_cpu_offset
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extern unsigned long __per_cpu_offset [ NR_CPUS ] ;
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# define per_cpu_offset(x) (__per_cpu_offset[x])
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# endif
/*
* Determine the offset for the currently active processor .
* An arch may define __my_cpu_offset to provide a more effective
* means of obtaining the offset to the per cpu variables of the
* current processor .
*/
# ifndef __my_cpu_offset
# define __my_cpu_offset per_cpu_offset(raw_smp_processor_id())
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# endif
# ifdef CONFIG_DEBUG_PREEMPT
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# define my_cpu_offset per_cpu_offset(smp_processor_id())
# else
# define my_cpu_offset __my_cpu_offset
# endif
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/*
* Arch may define arch_raw_cpu_ptr ( ) to provide more efficient address
* translations for raw_cpu_ptr ( ) .
*/
# ifndef arch_raw_cpu_ptr
# define arch_raw_cpu_ptr(ptr) SHIFT_PERCPU_PTR(ptr, __my_cpu_offset)
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# endif
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# ifdef CONFIG_HAVE_SETUP_PER_CPU_AREA
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extern void setup_per_cpu_areas ( void ) ;
# endif
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# endif /* SMP */
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# ifndef PER_CPU_BASE_SECTION
# ifdef CONFIG_SMP
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# define PER_CPU_BASE_SECTION ".data..percpu"
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# else
# define PER_CPU_BASE_SECTION ".data"
# endif
# endif
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# ifndef PER_CPU_ATTRIBUTES
# define PER_CPU_ATTRIBUTES
# endif
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# ifndef PER_CPU_DEF_ATTRIBUTES
# define PER_CPU_DEF_ATTRIBUTES
# endif
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# define raw_cpu_generic_to_op(pcp, val, op) \
do { \
* raw_cpu_ptr ( & ( pcp ) ) op val ; \
} while ( 0 )
# define raw_cpu_generic_add_return(pcp, val) \
( { \
raw_cpu_add ( pcp , val ) ; \
raw_cpu_read ( pcp ) ; \
} )
# define raw_cpu_generic_xchg(pcp, nval) \
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( { \
typeof ( pcp ) __ret ; \
__ret = raw_cpu_read ( pcp ) ; \
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raw_cpu_write ( pcp , nval ) ; \
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__ret ; \
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} )
# define raw_cpu_generic_cmpxchg(pcp, oval, nval) \
( { \
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typeof ( pcp ) __ret ; \
__ret = raw_cpu_read ( pcp ) ; \
if ( __ret = = ( oval ) ) \
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raw_cpu_write ( pcp , nval ) ; \
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__ret ; \
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} )
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# define raw_cpu_generic_cmpxchg_double(pcp1, pcp2, oval1, oval2, nval1, nval2) \
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( { \
int __ret = 0 ; \
if ( raw_cpu_read ( pcp1 ) = = ( oval1 ) & & \
raw_cpu_read ( pcp2 ) = = ( oval2 ) ) { \
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raw_cpu_write ( pcp1 , nval1 ) ; \
raw_cpu_write ( pcp2 , nval2 ) ; \
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__ret = 1 ; \
} \
( __ret ) ; \
} )
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# define this_cpu_generic_read(pcp) \
( { \
typeof ( pcp ) __ret ; \
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preempt_disable ( ) ; \
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__ret = * this_cpu_ptr ( & ( pcp ) ) ; \
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preempt_enable ( ) ; \
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__ret ; \
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} )
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# define this_cpu_generic_to_op(pcp, val, op) \
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do { \
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unsigned long __flags ; \
raw_local_irq_save ( __flags ) ; \
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* raw_cpu_ptr ( & ( pcp ) ) op val ; \
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raw_local_irq_restore ( __flags ) ; \
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} while ( 0 )
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# define this_cpu_generic_add_return(pcp, val) \
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( { \
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typeof ( pcp ) __ret ; \
unsigned long __flags ; \
raw_local_irq_save ( __flags ) ; \
raw_cpu_add ( pcp , val ) ; \
__ret = raw_cpu_read ( pcp ) ; \
raw_local_irq_restore ( __flags ) ; \
__ret ; \
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} )
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# define this_cpu_generic_xchg(pcp, nval) \
( { \
typeof ( pcp ) __ret ; \
unsigned long __flags ; \
raw_local_irq_save ( __flags ) ; \
__ret = raw_cpu_read ( pcp ) ; \
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raw_cpu_write ( pcp , nval ) ; \
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raw_local_irq_restore ( __flags ) ; \
__ret ; \
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} )
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# define this_cpu_generic_cmpxchg(pcp, oval, nval) \
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( { \
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typeof ( pcp ) __ret ; \
unsigned long __flags ; \
raw_local_irq_save ( __flags ) ; \
__ret = raw_cpu_read ( pcp ) ; \
if ( __ret = = ( oval ) ) \
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raw_cpu_write ( pcp , nval ) ; \
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raw_local_irq_restore ( __flags ) ; \
__ret ; \
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} )
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# define this_cpu_generic_cmpxchg_double(pcp1, pcp2, oval1, oval2, nval1, nval2) \
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( { \
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int __ret ; \
unsigned long __flags ; \
raw_local_irq_save ( __flags ) ; \
__ret = raw_cpu_generic_cmpxchg_double ( pcp1 , pcp2 , \
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oval1 , oval2 , nval1 , nval2 ) ; \
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raw_local_irq_restore ( __flags ) ; \
__ret ; \
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} )
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# ifndef raw_cpu_read_1
# define raw_cpu_read_1(pcp) (*raw_cpu_ptr(&(pcp)))
# endif
# ifndef raw_cpu_read_2
# define raw_cpu_read_2(pcp) (*raw_cpu_ptr(&(pcp)))
# endif
# ifndef raw_cpu_read_4
# define raw_cpu_read_4(pcp) (*raw_cpu_ptr(&(pcp)))
# endif
# ifndef raw_cpu_read_8
# define raw_cpu_read_8(pcp) (*raw_cpu_ptr(&(pcp)))
# endif
# ifndef raw_cpu_write_1
# define raw_cpu_write_1(pcp, val) raw_cpu_generic_to_op(pcp, val, =)
# endif
# ifndef raw_cpu_write_2
# define raw_cpu_write_2(pcp, val) raw_cpu_generic_to_op(pcp, val, =)
# endif
# ifndef raw_cpu_write_4
# define raw_cpu_write_4(pcp, val) raw_cpu_generic_to_op(pcp, val, =)
# endif
# ifndef raw_cpu_write_8
# define raw_cpu_write_8(pcp, val) raw_cpu_generic_to_op(pcp, val, =)
# endif
# ifndef raw_cpu_add_1
# define raw_cpu_add_1(pcp, val) raw_cpu_generic_to_op(pcp, val, +=)
# endif
# ifndef raw_cpu_add_2
# define raw_cpu_add_2(pcp, val) raw_cpu_generic_to_op(pcp, val, +=)
# endif
# ifndef raw_cpu_add_4
# define raw_cpu_add_4(pcp, val) raw_cpu_generic_to_op(pcp, val, +=)
# endif
# ifndef raw_cpu_add_8
# define raw_cpu_add_8(pcp, val) raw_cpu_generic_to_op(pcp, val, +=)
# endif
# ifndef raw_cpu_and_1
# define raw_cpu_and_1(pcp, val) raw_cpu_generic_to_op(pcp, val, &=)
# endif
# ifndef raw_cpu_and_2
# define raw_cpu_and_2(pcp, val) raw_cpu_generic_to_op(pcp, val, &=)
# endif
# ifndef raw_cpu_and_4
# define raw_cpu_and_4(pcp, val) raw_cpu_generic_to_op(pcp, val, &=)
# endif
# ifndef raw_cpu_and_8
# define raw_cpu_and_8(pcp, val) raw_cpu_generic_to_op(pcp, val, &=)
# endif
# ifndef raw_cpu_or_1
# define raw_cpu_or_1(pcp, val) raw_cpu_generic_to_op(pcp, val, |=)
# endif
# ifndef raw_cpu_or_2
# define raw_cpu_or_2(pcp, val) raw_cpu_generic_to_op(pcp, val, |=)
# endif
# ifndef raw_cpu_or_4
# define raw_cpu_or_4(pcp, val) raw_cpu_generic_to_op(pcp, val, |=)
# endif
# ifndef raw_cpu_or_8
# define raw_cpu_or_8(pcp, val) raw_cpu_generic_to_op(pcp, val, |=)
# endif
# ifndef raw_cpu_add_return_1
# define raw_cpu_add_return_1(pcp, val) raw_cpu_generic_add_return(pcp, val)
# endif
# ifndef raw_cpu_add_return_2
# define raw_cpu_add_return_2(pcp, val) raw_cpu_generic_add_return(pcp, val)
# endif
# ifndef raw_cpu_add_return_4
# define raw_cpu_add_return_4(pcp, val) raw_cpu_generic_add_return(pcp, val)
# endif
# ifndef raw_cpu_add_return_8
# define raw_cpu_add_return_8(pcp, val) raw_cpu_generic_add_return(pcp, val)
# endif
# ifndef raw_cpu_xchg_1
# define raw_cpu_xchg_1(pcp, nval) raw_cpu_generic_xchg(pcp, nval)
# endif
# ifndef raw_cpu_xchg_2
# define raw_cpu_xchg_2(pcp, nval) raw_cpu_generic_xchg(pcp, nval)
# endif
# ifndef raw_cpu_xchg_4
# define raw_cpu_xchg_4(pcp, nval) raw_cpu_generic_xchg(pcp, nval)
# endif
# ifndef raw_cpu_xchg_8
# define raw_cpu_xchg_8(pcp, nval) raw_cpu_generic_xchg(pcp, nval)
# endif
# ifndef raw_cpu_cmpxchg_1
# define raw_cpu_cmpxchg_1(pcp, oval, nval) \
raw_cpu_generic_cmpxchg ( pcp , oval , nval )
# endif
# ifndef raw_cpu_cmpxchg_2
# define raw_cpu_cmpxchg_2(pcp, oval, nval) \
raw_cpu_generic_cmpxchg ( pcp , oval , nval )
# endif
# ifndef raw_cpu_cmpxchg_4
# define raw_cpu_cmpxchg_4(pcp, oval, nval) \
raw_cpu_generic_cmpxchg ( pcp , oval , nval )
# endif
# ifndef raw_cpu_cmpxchg_8
# define raw_cpu_cmpxchg_8(pcp, oval, nval) \
raw_cpu_generic_cmpxchg ( pcp , oval , nval )
# endif
# ifndef raw_cpu_cmpxchg_double_1
# define raw_cpu_cmpxchg_double_1(pcp1, pcp2, oval1, oval2, nval1, nval2) \
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raw_cpu_generic_cmpxchg_double ( pcp1 , pcp2 , oval1 , oval2 , nval1 , nval2 )
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# endif
# ifndef raw_cpu_cmpxchg_double_2
# define raw_cpu_cmpxchg_double_2(pcp1, pcp2, oval1, oval2, nval1, nval2) \
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raw_cpu_generic_cmpxchg_double ( pcp1 , pcp2 , oval1 , oval2 , nval1 , nval2 )
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# endif
# ifndef raw_cpu_cmpxchg_double_4
# define raw_cpu_cmpxchg_double_4(pcp1, pcp2, oval1, oval2, nval1, nval2) \
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raw_cpu_generic_cmpxchg_double ( pcp1 , pcp2 , oval1 , oval2 , nval1 , nval2 )
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# endif
# ifndef raw_cpu_cmpxchg_double_8
# define raw_cpu_cmpxchg_double_8(pcp1, pcp2, oval1, oval2, nval1, nval2) \
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raw_cpu_generic_cmpxchg_double ( pcp1 , pcp2 , oval1 , oval2 , nval1 , nval2 )
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# endif
# ifndef this_cpu_read_1
# define this_cpu_read_1(pcp) this_cpu_generic_read(pcp)
# endif
# ifndef this_cpu_read_2
# define this_cpu_read_2(pcp) this_cpu_generic_read(pcp)
# endif
# ifndef this_cpu_read_4
# define this_cpu_read_4(pcp) this_cpu_generic_read(pcp)
# endif
# ifndef this_cpu_read_8
# define this_cpu_read_8(pcp) this_cpu_generic_read(pcp)
# endif
# ifndef this_cpu_write_1
# define this_cpu_write_1(pcp, val) this_cpu_generic_to_op(pcp, val, =)
# endif
# ifndef this_cpu_write_2
# define this_cpu_write_2(pcp, val) this_cpu_generic_to_op(pcp, val, =)
# endif
# ifndef this_cpu_write_4
# define this_cpu_write_4(pcp, val) this_cpu_generic_to_op(pcp, val, =)
# endif
# ifndef this_cpu_write_8
# define this_cpu_write_8(pcp, val) this_cpu_generic_to_op(pcp, val, =)
# endif
# ifndef this_cpu_add_1
# define this_cpu_add_1(pcp, val) this_cpu_generic_to_op(pcp, val, +=)
# endif
# ifndef this_cpu_add_2
# define this_cpu_add_2(pcp, val) this_cpu_generic_to_op(pcp, val, +=)
# endif
# ifndef this_cpu_add_4
# define this_cpu_add_4(pcp, val) this_cpu_generic_to_op(pcp, val, +=)
# endif
# ifndef this_cpu_add_8
# define this_cpu_add_8(pcp, val) this_cpu_generic_to_op(pcp, val, +=)
# endif
# ifndef this_cpu_and_1
# define this_cpu_and_1(pcp, val) this_cpu_generic_to_op(pcp, val, &=)
# endif
# ifndef this_cpu_and_2
# define this_cpu_and_2(pcp, val) this_cpu_generic_to_op(pcp, val, &=)
# endif
# ifndef this_cpu_and_4
# define this_cpu_and_4(pcp, val) this_cpu_generic_to_op(pcp, val, &=)
# endif
# ifndef this_cpu_and_8
# define this_cpu_and_8(pcp, val) this_cpu_generic_to_op(pcp, val, &=)
# endif
# ifndef this_cpu_or_1
# define this_cpu_or_1(pcp, val) this_cpu_generic_to_op(pcp, val, |=)
# endif
# ifndef this_cpu_or_2
# define this_cpu_or_2(pcp, val) this_cpu_generic_to_op(pcp, val, |=)
# endif
# ifndef this_cpu_or_4
# define this_cpu_or_4(pcp, val) this_cpu_generic_to_op(pcp, val, |=)
# endif
# ifndef this_cpu_or_8
# define this_cpu_or_8(pcp, val) this_cpu_generic_to_op(pcp, val, |=)
# endif
# ifndef this_cpu_add_return_1
# define this_cpu_add_return_1(pcp, val) this_cpu_generic_add_return(pcp, val)
# endif
# ifndef this_cpu_add_return_2
# define this_cpu_add_return_2(pcp, val) this_cpu_generic_add_return(pcp, val)
# endif
# ifndef this_cpu_add_return_4
# define this_cpu_add_return_4(pcp, val) this_cpu_generic_add_return(pcp, val)
# endif
# ifndef this_cpu_add_return_8
# define this_cpu_add_return_8(pcp, val) this_cpu_generic_add_return(pcp, val)
# endif
# ifndef this_cpu_xchg_1
# define this_cpu_xchg_1(pcp, nval) this_cpu_generic_xchg(pcp, nval)
# endif
# ifndef this_cpu_xchg_2
# define this_cpu_xchg_2(pcp, nval) this_cpu_generic_xchg(pcp, nval)
# endif
# ifndef this_cpu_xchg_4
# define this_cpu_xchg_4(pcp, nval) this_cpu_generic_xchg(pcp, nval)
# endif
# ifndef this_cpu_xchg_8
# define this_cpu_xchg_8(pcp, nval) this_cpu_generic_xchg(pcp, nval)
# endif
# ifndef this_cpu_cmpxchg_1
# define this_cpu_cmpxchg_1(pcp, oval, nval) \
this_cpu_generic_cmpxchg ( pcp , oval , nval )
# endif
# ifndef this_cpu_cmpxchg_2
# define this_cpu_cmpxchg_2(pcp, oval, nval) \
this_cpu_generic_cmpxchg ( pcp , oval , nval )
# endif
# ifndef this_cpu_cmpxchg_4
# define this_cpu_cmpxchg_4(pcp, oval, nval) \
this_cpu_generic_cmpxchg ( pcp , oval , nval )
# endif
# ifndef this_cpu_cmpxchg_8
# define this_cpu_cmpxchg_8(pcp, oval, nval) \
this_cpu_generic_cmpxchg ( pcp , oval , nval )
# endif
# ifndef this_cpu_cmpxchg_double_1
# define this_cpu_cmpxchg_double_1(pcp1, pcp2, oval1, oval2, nval1, nval2) \
this_cpu_generic_cmpxchg_double ( pcp1 , pcp2 , oval1 , oval2 , nval1 , nval2 )
# endif
# ifndef this_cpu_cmpxchg_double_2
# define this_cpu_cmpxchg_double_2(pcp1, pcp2, oval1, oval2, nval1, nval2) \
this_cpu_generic_cmpxchg_double ( pcp1 , pcp2 , oval1 , oval2 , nval1 , nval2 )
# endif
# ifndef this_cpu_cmpxchg_double_4
# define this_cpu_cmpxchg_double_4(pcp1, pcp2, oval1, oval2, nval1, nval2) \
this_cpu_generic_cmpxchg_double ( pcp1 , pcp2 , oval1 , oval2 , nval1 , nval2 )
# endif
# ifndef this_cpu_cmpxchg_double_8
# define this_cpu_cmpxchg_double_8(pcp1, pcp2, oval1, oval2, nval1, nval2) \
this_cpu_generic_cmpxchg_double ( pcp1 , pcp2 , oval1 , oval2 , nval1 , nval2 )
# endif
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# endif /* _ASM_GENERIC_PERCPU_H_ */