From: Ingo Molnar <[email protected]>
add the per_cpu_offset() generic method. (used by the lock validator)
Signed-off-by: Ingo Molnar <[email protected]>
Signed-off-by: Arjan van de Ven <[email protected]>
---
include/asm-generic/percpu.h | 2 ++
include/asm-x86_64/percpu.h | 2 ++
2 files changed, 4 insertions(+)
Index: linux/include/asm-generic/percpu.h
===================================================================
--- linux.orig/include/asm-generic/percpu.h
+++ linux/include/asm-generic/percpu.h
@@ -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
Index: linux/include/asm-x86_64/percpu.h
===================================================================
--- linux.orig/include/asm-x86_64/percpu.h
+++ linux/include/asm-x86_64/percpu.h
@@ -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
-
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