io: Fix sporadic test failures in io/tst-stat
Checks
Commit Message
support_stat_nanoseconds cannot restore the ctime time, and
this may lead to sporadic test failures. Therefore, probe for
nanoseconds support before the initial statx call.
---
io/tst-stat.c | 10 +++++-----
support/support.h | 3 ++-
2 files changed, 7 insertions(+), 6 deletions(-)
Comments
On 10/06/2021 05:10, Florian Weimer wrote:
> support_stat_nanoseconds cannot restore the ctime time, and
> this may lead to sporadic test failures. Therefore, probe for
> nanoseconds support before the initial statx call.
>
LGTM, thanks for catching it.
Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
> ---
> io/tst-stat.c | 10 +++++-----
> support/support.h | 3 ++-
> 2 files changed, 7 insertions(+), 6 deletions(-)
>
> diff --git a/io/tst-stat.c b/io/tst-stat.c
> index b3e8dc2170..82e965de6a 100644
> --- a/io/tst-stat.c
> +++ b/io/tst-stat.c
> @@ -69,15 +69,15 @@ do_test (void)
> TEST_VERIFY_EXIT (fd >= 0);
> support_write_file_string (path, "abc");
>
> - struct statx stx;
> - TEST_COMPARE (statx (fd, path, 0, STATX_BASIC_STATS, &stx), 0);
> -
> - test_t tests[] = { stat_check, lstat_check, fstat_check, fstatat_check };
> -
> bool check_ns = support_stat_nanoseconds (path);
> if (!check_ns)
> printf ("warning: timestamp with nanoseconds not supported\n");
>
> + struct statx stx;
> + TEST_COMPARE (statx (fd, path, 0, STATX_BASIC_STATS, &stx), 0);
> +
> + test_t tests[] = { stat_check, lstat_check, fstat_check, fstatat_check };
> +
> for (int i = 0; i < array_length (tests); i++)
> {
> struct stat st;
> diff --git a/support/support.h b/support/support.h
> index db264e3db7..874204b7fc 100644
> --- a/support/support.h
> +++ b/support/support.h
> @@ -141,7 +141,8 @@ static __inline bool support_path_support_time64 (const char *path)
> 0x80000002ULL);
> }
>
> -/* Return true if stat supports nanoseconds resolution. */
> +/* Return true if stat supports nanoseconds resolution. PATH is used
> + for tests and its ctime may change. */
> extern bool support_stat_nanoseconds (const char *path);
>
> /* Return true if select modify the timeout to reflect the amount of time
>
@@ -69,15 +69,15 @@ do_test (void)
TEST_VERIFY_EXIT (fd >= 0);
support_write_file_string (path, "abc");
- struct statx stx;
- TEST_COMPARE (statx (fd, path, 0, STATX_BASIC_STATS, &stx), 0);
-
- test_t tests[] = { stat_check, lstat_check, fstat_check, fstatat_check };
-
bool check_ns = support_stat_nanoseconds (path);
if (!check_ns)
printf ("warning: timestamp with nanoseconds not supported\n");
+ struct statx stx;
+ TEST_COMPARE (statx (fd, path, 0, STATX_BASIC_STATS, &stx), 0);
+
+ test_t tests[] = { stat_check, lstat_check, fstat_check, fstatat_check };
+
for (int i = 0; i < array_length (tests); i++)
{
struct stat st;
@@ -141,7 +141,8 @@ static __inline bool support_path_support_time64 (const char *path)
0x80000002ULL);
}
-/* Return true if stat supports nanoseconds resolution. */
+/* Return true if stat supports nanoseconds resolution. PATH is used
+ for tests and its ctime may change. */
extern bool support_stat_nanoseconds (const char *path);
/* Return true if select modify the timeout to reflect the amount of time