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[PATCH] lockdep: add per_cpu_offset()

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Add the per_cpu_offset() generic method. (used by the lock validator)

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
Cc: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Ingo Molnar 2006-07-03 00:24:26 -07:00 committed by Linus Torvalds
parent 8d8fdf5c76
commit a875a69f8b
6 changed files with 8 additions and 0 deletions
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2
include/asm-generic/percpu.h
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@ -7,6 +7,8 @@
extern unsigned long __per_cpu_offset[NR_CPUS];
#define per_cpu_offset(x) (__per_cpu_offset[x])
/* Separate out the type, so (int[3], foo) works. */
#define DEFINE_PER_CPU(type, name) \
__attribute__((__section__(".data.percpu"))) __typeof__(type) per_cpu__##name

1
include/asm-ia64/percpu.h
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@ -36,6 +36,7 @@
#ifdef CONFIG_SMP
extern unsigned long __per_cpu_offset[NR_CPUS];
#define per_cpu_offset(x) (__per_cpu_offset(x))
/* Equal to __per_cpu_offset[smp_processor_id()], but faster to access: */
DECLARE_PER_CPU(unsigned long, local_per_cpu_offset);

1
include/asm-powerpc/percpu.h
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@ -14,6 +14,7 @@
#define __per_cpu_offset(cpu) (paca[cpu].data_offset)
#define __my_cpu_offset() get_paca()->data_offset
#define per_cpu_offset(x) (__per_cpu_offset(x))
/* Separate out the type, so (int[3], foo) works. */
#define DEFINE_PER_CPU(type, name) \

1
include/asm-s390/percpu.h
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@ -42,6 +42,7 @@ extern unsigned long __per_cpu_offset[NR_CPUS];
#define __get_cpu_var(var) __reloc_hide(var,S390_lowcore.percpu_offset)
#define __raw_get_cpu_var(var) __reloc_hide(var,S390_lowcore.percpu_offset)
#define per_cpu(var,cpu) __reloc_hide(var,__per_cpu_offset[cpu])
#define per_cpu_offset(x) (__per_cpu_offset[x])
/* A macro to avoid #include hell... */
#define percpu_modcopy(pcpudst, src, size) \

1
include/asm-sparc64/percpu.h
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@ -11,6 +11,7 @@ extern unsigned long __per_cpu_base;
extern unsigned long __per_cpu_shift;
#define __per_cpu_offset(__cpu) \
(__per_cpu_base + ((unsigned long)(__cpu) << __per_cpu_shift))
#define per_cpu_offset(x) (__per_cpu_offset(x))
/* Separate out the type, so (int[3], foo) works. */
#define DEFINE_PER_CPU(type, name) \

2
include/asm-x86_64/percpu.h
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@ -14,6 +14,8 @@
#define __per_cpu_offset(cpu) (cpu_pda(cpu)->data_offset)
#define __my_cpu_offset() read_pda(data_offset)
#define per_cpu_offset(x) (__per_cpu_offset(x))
/* Separate out the type, so (int[3], foo) works. */
#define DEFINE_PER_CPU(type, name) \
__attribute__((__section__(".data.percpu"))) __typeof__(type) per_cpu__##name