Re: [PATCH v6 0/6] selftests/mm: skip several tests when thp is not available

["David Hildenbrand (Arm)" <david@kernel.org>]

On 3/24/26 17:09, Andrew Morton wrote:
> On Tue, 24 Mar 2026 09:33:10 +0800 Chunyu Hu <chuhu@redhat.com> wrote:
> 
>> There are several tests requires transprarent hugepages, when run on thp
>> disabled kernel such as realtime kernel, there will be false negative.
>> Mark those tests as skip when thp is not available.
> 
> Thanks, I updated mm.git's mm-unstable branch to this version.
> 
>> Chagnes in v6:
>>   - patch 3 add reviewed-by from Lorenzo
>>   - patch 4 handle the errno before and after close(), suggested by AI
> 
> Here's how v6 altered mm.git:
> 
> 
>  tools/testing/selftests/mm/vm_util.c |   12 ++++++++++--
>  1 file changed, 10 insertions(+), 2 deletions(-)
> 
> --- a/tools/testing/selftests/mm/vm_util.c~b
> +++ a/tools/testing/selftests/mm/vm_util.c
> @@ -785,15 +785,23 @@ int unpoison_memory(unsigned long pfn)
>  
>  void write_file(const char *path, const char *buf, size_t buflen)
>  {
> -	int fd;
> +	int fd, saved_errno;
>  	ssize_t numwritten;

Empty line? :)

> +	if (buflen < 1)
> +		ksft_exit_fail_msg("Incorrect buffer len: %zu\n", buflen);

-- 
Cheers,

David