On Thu, 4 Mar 2010, Lee Schermerhorn wrote:
> Index: linux-2.6.33-mmotm-100302-1838/arch/x86/include/asm/percpu.h
> ===================================================================
> --- linux-2.6.33-mmotm-100302-1838.orig/arch/x86/include/asm/percpu.h
> +++ linux-2.6.33-mmotm-100302-1838/arch/x86/include/asm/percpu.h
> @@ -208,10 +208,12 @@ do { \
> #define percpu_or(var, val) percpu_to_op("or", var, val)
> #define percpu_xor(var, val) percpu_to_op("xor", var, val)
>
> +#define __this_cpu_read(pcp) percpu_from_op("mov", (pcp), "m"(pcp))
> #define __this_cpu_read_1(pcp) percpu_from_op("mov", (pcp), "m"(pcp))
> #define __this_cpu_read_2(pcp) percpu_from_op("mov", (pcp), "m"(pcp))
> #define __this_cpu_read_4(pcp) percpu_from_op("mov", (pcp), "m"(pcp))
>
> +#define __this_cpu_write(pcp, val) percpu_to_op("mov", (pcp), val)
> #define __this_cpu_write_1(pcp, val) percpu_to_op("mov", (pcp), val)
> #define __this_cpu_write_2(pcp, val) percpu_to_op("mov", (pcp), val)
> #define __this_cpu_write_4(pcp, val) percpu_to_op("mov", (pcp), val)
The functions added are already defined in linux/percpu.h and their
definition here is wrong since the u64 case is not handled (percpu.h does
that correctly).
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