On 10/01/2014 07:31 AM, Kirill A. Shutemov wrote:
> +#define _VM_DUMP(arg, cond) do { \
> + if (__builtin_types_compatible_p(typeof(*arg), struct page)) \
> + dump_page((struct page *) arg, \
> + "VM_BUG_ON(" __stringify(cond)")"); \
> + else if (__builtin_types_compatible_p(typeof(*arg), \
> + struct vm_area_struct)) \
> + dump_vma((struct vm_area_struct *) arg); \
> + else if (__builtin_types_compatible_p(typeof(*arg), \
> + struct mm_struct)) \
> + dump_mm((struct mm_struct *) arg); \
> + else \
> + BUILD_BUG(); \
> +} while(0)
__same_type() instead of __builtin_types_compatible_p() would look nicer,
but I don't think that all compilers support that:
include/linux/compiler-intel.h:/* Intel ECC compiler doesn't support __builtin_types_compatible_p() */
So it would effectively disable VM_BUG_ONs on Intel's compiler.
Thanks,
Sasha
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