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-rw-r--r--include/asm-generic/percpu.h8
1 files changed, 7 insertions, 1 deletions
diff --git a/include/asm-generic/percpu.h b/include/asm-generic/percpu.h
index c0caf433a7d7..6d45ee5472af 100644
--- a/include/asm-generic/percpu.h
+++ b/include/asm-generic/percpu.h
@@ -7,13 +7,18 @@
7 7
8extern unsigned long __per_cpu_offset[NR_CPUS]; 8extern unsigned long __per_cpu_offset[NR_CPUS];
9 9
10#define per_cpu_offset(x) (__per_cpu_offset[x])
11
10/* Separate out the type, so (int[3], foo) works. */ 12/* Separate out the type, so (int[3], foo) works. */
11#define DEFINE_PER_CPU(type, name) \ 13#define DEFINE_PER_CPU(type, name) \
12 __attribute__((__section__(".data.percpu"))) __typeof__(type) per_cpu__##name 14 __attribute__((__section__(".data.percpu"))) __typeof__(type) per_cpu__##name
13 15
14/* var is in discarded region: offset to particular copy we want */ 16/* var is in discarded region: offset to particular copy we want */
15#define per_cpu(var, cpu) (*RELOC_HIDE(&per_cpu__##var, __per_cpu_offset[cpu])) 17#define per_cpu(var, cpu) (*({ \
18 extern int simple_indentifier_##var(void); \
19 RELOC_HIDE(&per_cpu__##var, __per_cpu_offset[cpu]); }))
16#define __get_cpu_var(var) per_cpu(var, smp_processor_id()) 20#define __get_cpu_var(var) per_cpu(var, smp_processor_id())
21#define __raw_get_cpu_var(var) per_cpu(var, raw_smp_processor_id())
17 22
18/* A macro to avoid #include hell... */ 23/* A macro to avoid #include hell... */
19#define percpu_modcopy(pcpudst, src, size) \ 24#define percpu_modcopy(pcpudst, src, size) \
@@ -30,6 +35,7 @@ do { \
30 35
31#define per_cpu(var, cpu) (*((void)(cpu), &per_cpu__##var)) 36#define per_cpu(var, cpu) (*((void)(cpu), &per_cpu__##var))
32#define __get_cpu_var(var) per_cpu__##var 37#define __get_cpu_var(var) per_cpu__##var
38#define __raw_get_cpu_var(var) per_cpu__##var
33 39
34#endif /* SMP */ 40#endif /* SMP */
35 41