On Mon, Aug 17, 2026 at 02:19:55PM +0800, Hongfu Li wrote:
> From: Hongfu Li <[email protected]>
> 
> Replace the perror()+exit(EXIT_FAILURE) pattern with
> ksft_exit_fail_perror() so failures are reported through the
> kselftest framework, consistent with the rest of the file.
> 
> Signed-off-by: Hongfu Li <[email protected]>

Reviewed-by: Mike Rapoport (Microsoft) <[email protected]>

> ---
>  tools/testing/selftests/mm/khugepaged.c | 20 +++++++-------------
>  1 file changed, 7 insertions(+), 13 deletions(-)
> 
> diff --git a/tools/testing/selftests/mm/khugepaged.c 
> b/tools/testing/selftests/mm/khugepaged.c
> index 0d6c71ed2fae..8d1b87f2195c 100644
> --- a/tools/testing/selftests/mm/khugepaged.c
> +++ b/tools/testing/selftests/mm/khugepaged.c
> @@ -358,21 +358,15 @@ static void *file_setup_area_common(int nr_hpages, enum 
> file_setup_ops setup)
>               ksft_exit_fail_perror("open()");
>  
>       size = nr_hpages * hpage_pmd_size;
> -     if (ftruncate(fd, size)) {
> -             perror("ftruncate()");
> -             exit(EXIT_FAILURE);
> -     }
> +     if (ftruncate(fd, size))
> +             ksft_exit_fail_perror("ftruncate()");
>       p = mmap(BASE_ADDR, size, PROT_READ | PROT_WRITE,
>               MAP_SHARED, fd, 0);
> -     if (p != BASE_ADDR) {
> -             perror("mmap()");
> -             exit(EXIT_FAILURE);
> -     }
> +     if (p != BASE_ADDR)
> +             ksft_exit_fail_perror("mmap()");
>       fill_memory(p, 0, size);
> -     if (msync(p, size, MS_SYNC)) {
> -             perror("msync()");
> -             exit(EXIT_FAILURE);
> -     }
> +     if (msync(p, size, MS_SYNC))
> +             ksft_exit_fail_perror("msync()");
>       close(fd);
>       munmap(p, size);
>       success("OK");
> @@ -447,7 +441,7 @@ static bool file_check_huge(void *addr, size_t len, int 
> nr_hpages,
>       case VMA_SHMEM:
>               return check_huge_shmem(addr, len, nr_hpages, hpage_size);
>       default:
> -             exit(EXIT_FAILURE);
> +             ksft_exit_fail_msg("Unknown VMA type\n");
>               return false;
>       }
>  }
> -- 
> 2.54.0
> 

-- 
Sincerely yours,
Mike.

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