[LTP] [PATCH 6/11 v2] mmap/mmap12: Testcase failed for non-root user

[Jan Stancek <jstancek@redhat.com>]

----- Original Message -----
> From: "Cui Bixuan" <cuibixuan@huawei.com>
> To: "Cyril Hrubis" <chrubis@suse.cz>
> Cc: "Jan Stancek" <jstancek@redhat.com>, zhuyanpeng@huawei.com, zhanyongming@huawei.com, ltp@lists.linux.it
> Sent: Tuesday, 3 November, 2015 9:01:22 AM
> Subject: [LTP] [PATCH 6/11 v2] mmap/mmap12: Testcase failed for non-root user
> 
> Unprivileged user open /proc/self/pagemap fail so add check for it
> 
> Signed-off-by: Cui Bixuan <cuibixuan@huawei.com>

Pushed with more verbose commit message and small changes to style.

Regards,
Jan

> ---
>  testcases/kernel/syscalls/mmap/mmap12.c |   10 ++++++++--
>  1 files changed, 8 insertions(+), 2 deletions(-)
> 
> diff --git a/testcases/kernel/syscalls/mmap/mmap12.c
> b/testcases/kernel/syscalls/mmap/mmap12.c
> index ba8c646..ebc44ae 100644
> --- a/testcases/kernel/syscalls/mmap/mmap12.c
> +++ b/testcases/kernel/syscalls/mmap/mmap12.c
> @@ -108,8 +108,14 @@ static int page_check(void)
>  	index = (vmstart / page_sz) * sizeof(uint64_t);
> 
>  	pm = open("/proc/self/pagemap", O_RDONLY);
> -	if (pm == -1)
> -		tst_brkm(TFAIL | TERRNO, NULL, "Open dev pagemap failed");
> +	if (pm == -1) {
> +		if ((0 != geteuid()) && (errno == EPERM))
> +			tst_brkm(TCONF | TERRNO, NULL,
> +				"don't have permission to open dev pagemap");
> +		else
> +			tst_brkm(TFAIL | TERRNO, NULL,
> +				"Open dev pagemap failed");
> +	}
> 
>  	offset = lseek(pm, index, SEEK_SET);
>  	if (offset != index)
> --
> 1.6.0.2
>