[PATCH] lockdep: add per_cpu_offset()
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>
diff --git a/include/asm-generic/percpu.h b/include/asm-generic/percpu.h
index c745211..e160e04 100644
--- a/include/asm-generic/percpu.h
+++ b/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
diff --git a/include/asm-ia64/percpu.h b/include/asm-ia64/percpu.h
index 24d898b..fbe5cf3 100644
--- a/include/asm-ia64/percpu.h
+++ b/include/asm-ia64/percpu.h
@@ -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);
diff --git a/include/asm-powerpc/percpu.h b/include/asm-powerpc/percpu.h
index faa1fc7..2f2e302 100644
--- a/include/asm-powerpc/percpu.h
+++ b/include/asm-powerpc/percpu.h
@@ -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) \
diff --git a/include/asm-s390/percpu.h b/include/asm-s390/percpu.h
index d9a8cca..28b3517 100644
--- a/include/asm-s390/percpu.h
+++ b/include/asm-s390/percpu.h
@@ -42,6 +42,7 @@
#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) \
diff --git a/include/asm-sparc64/percpu.h b/include/asm-sparc64/percpu.h
index a6ece06..ced8cbd 100644
--- a/include/asm-sparc64/percpu.h
+++ b/include/asm-sparc64/percpu.h
@@ -11,6 +11,7 @@
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) \
diff --git a/include/asm-x86_64/percpu.h b/include/asm-x86_64/percpu.h
index 549eb92..08dd9f9 100644
--- a/include/asm-x86_64/percpu.h
+++ b/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