Re: [PATCH 14/24] ARM64:ILP32: COMPAT_USE_64BIT_TIME is true for ILP32 tasks.

From: Catalin Marinas
Date: Thu Jun 19 2014 - 08:52:31 EST


On Sat, May 24, 2014 at 12:02:09AM -0700, Andrew Pinski wrote:
> Since __kernel_long_t (time_t) is long long, we need to tell the rest
> of kernel that we use 64bit time_t for compat when the task is not an
> AARCH32 task. The reason why we check AARCH32 rather than ILP32 here
> is because if we don't have AARCH32 compiled in (which is going to be
> the common case due to AARCH32 requiring 4k pages).
>
> Thanks,
> Andrew Pinski
>
> Signed-off-by: Andrew Pinski <apinski@xxxxxxxxxx>
> ---
> arch/arm64/include/asm/compat.h | 3 +++
> 1 files changed, 3 insertions(+), 0 deletions(-)
>
> diff --git a/arch/arm64/include/asm/compat.h b/arch/arm64/include/asm/compat.h
> index 85f945c..c77fc0f 100644
> --- a/arch/arm64/include/asm/compat.h
> +++ b/arch/arm64/include/asm/compat.h
> @@ -76,6 +76,9 @@ struct compat_timeval {
> s32 tv_usec;
> };
>
> +/* ILP32 uses 64bit time_t and not the above compat structures */
> +#define COMPAT_USE_64BIT_TIME !is_a32_compat_task()

Brackets.

BTW, you could write is_ilp32_compat_task().

--
Catalin
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