X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=include%2Fasm-generic%2Fpercpu.h;h=196376262240470ba6d5d3a11990e55690099629;hb=refs%2Fheads%2Fvserver;hp=3b709b84934f4db134327d00538989e601b57e87;hpb=5273a3df6485dc2ad6aa7ddd441b9a21970f003b;p=linux-2.6.git diff --git a/include/asm-generic/percpu.h b/include/asm-generic/percpu.h index 3b709b849..196376262 100644 --- a/include/asm-generic/percpu.h +++ b/include/asm-generic/percpu.h @@ -7,30 +7,35 @@ 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 /* var is in discarded region: offset to particular copy we want */ -#define per_cpu(var, cpu) (*RELOC_HIDE(&per_cpu__##var, __per_cpu_offset[cpu])) +#define per_cpu(var, cpu) (*({ \ + extern int simple_identifier_##var(void); \ + RELOC_HIDE(&per_cpu__##var, __per_cpu_offset[cpu]); })) #define __get_cpu_var(var) per_cpu(var, smp_processor_id()) +#define __raw_get_cpu_var(var) per_cpu(var, raw_smp_processor_id()) /* A macro to avoid #include hell... */ #define percpu_modcopy(pcpudst, src, size) \ do { \ unsigned int __i; \ - for (__i = 0; __i < NR_CPUS; __i++) \ - if (cpu_possible(__i)) \ - memcpy((pcpudst)+__per_cpu_offset[__i], \ - (src), (size)); \ + for_each_possible_cpu(__i) \ + memcpy((pcpudst)+__per_cpu_offset[__i], \ + (src), (size)); \ } while (0) #else /* ! SMP */ #define DEFINE_PER_CPU(type, name) \ __typeof__(type) per_cpu__##name -#define per_cpu(var, cpu) (*((void)cpu, &per_cpu__##var)) +#define per_cpu(var, cpu) (*((void)(cpu), &per_cpu__##var)) #define __get_cpu_var(var) per_cpu__##var +#define __raw_get_cpu_var(var) per_cpu__##var #endif /* SMP */