Re: [PATCH v1 1/2] selftests/mm: Include linux/mman.h

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On Wed, Jun 05, 2024 at 10:36:34PM +0000, Edward Liaw wrote:
> thuge-gen defines MAP_HUGE_* macros that are provided by linux/mman.h
> since 4.15. Removes the macros and includes linux/mman.h instead.
> 
> Signed-off-by: Edward Liaw <edliaw@xxxxxxxxxx>
> ---
>  tools/testing/selftests/mm/thuge-gen.c | 5 +----
>  1 file changed, 1 insertion(+), 4 deletions(-)
> 
> diff --git a/tools/testing/selftests/mm/thuge-gen.c b/tools/testing/selftests/mm/thuge-gen.c
> index ea7fd8fe2876..034635317935 100644
> --- a/tools/testing/selftests/mm/thuge-gen.c
> +++ b/tools/testing/selftests/mm/thuge-gen.c
> @@ -15,6 +15,7 @@
>  
>  #define _GNU_SOURCE 1
>  #include <sys/mman.h>
> +#include <linux/mman.h>
>  #include <stdlib.h>
>  #include <stdio.h>
>  #include <sys/ipc.h>
> @@ -28,10 +29,6 @@
>  #include "vm_util.h"
>  #include "../kselftest.h"
>  
> -#define MAP_HUGE_2MB    (21 << MAP_HUGE_SHIFT)
> -#define MAP_HUGE_1GB    (30 << MAP_HUGE_SHIFT)
> -#define MAP_HUGE_SHIFT  26
> -#define MAP_HUGE_MASK   0x3f
>  #if !defined(MAP_HUGETLB)
>  #define MAP_HUGETLB	0x40000
>  #endif
> -- 
> 2.45.1.467.gbab1589fc0-goog
> 

This makes sense to me, particularly when other mm selftests are using
the same include pattern.

Reviewed-by: Carlos Llamas <cmllamas@xxxxxxxxxx>




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