From: Kees Cook keescook@chromium.org

[ Upstream commit fe48319243a626c860fd666ca032daacc2ba84a5 ]

When running under a pipe, some timer tests would not report output in real-time because stdout flushes were missing after printf()s that lacked a newline. This adds them to restore real-time status output that humans can enjoy.

Signed-off-by: Kees Cook keescook@chromium.org Signed-off-by: Shuah Khan skhan@linuxfoundation.org Signed-off-by: Sasha Levin sashal@kernel.org --- tools/testing/selftests/timers/adjtick.c | 1 + tools/testing/selftests/timers/leapcrash.c | 1 + tools/testing/selftests/timers/mqueue-lat.c | 1 + tools/testing/selftests/timers/nanosleep.c | 1 + tools/testing/selftests/timers/nsleep-lat.c | 1 + tools/testing/selftests/timers/raw_skew.c | 1 + tools/testing/selftests/timers/set-tai.c | 1 + tools/testing/selftests/timers/set-tz.c | 2 ++ tools/testing/selftests/timers/threadtest.c | 1 + tools/testing/selftests/timers/valid-adjtimex.c | 2 ++ 10 files changed, 12 insertions(+)

diff --git a/tools/testing/selftests/timers/adjtick.c b/tools/testing/selftests/timers/adjtick.c index 9887fd538fec..91316ab4b041 100644 --- a/tools/testing/selftests/timers/adjtick.c +++ b/tools/testing/selftests/timers/adjtick.c @@ -147,6 +147,7 @@ int check_tick_adj(long tickval)

eppm = get_ppm_drift(); printf("%lld usec, %lld ppm", systick + (systick * eppm / MILLION), eppm); + fflush(stdout);

tx1.modes = 0; adjtimex(&tx1); diff --git a/tools/testing/selftests/timers/leapcrash.c b/tools/testing/selftests/timers/leapcrash.c index a1071bdbdeb7..a77c70b47495 100644 --- a/tools/testing/selftests/timers/leapcrash.c +++ b/tools/testing/selftests/timers/leapcrash.c @@ -114,6 +114,7 @@ int main(void) } clear_time_state(); printf("."); + fflush(stdout); } printf("[OK]\n"); return ksft_exit_pass(); diff --git a/tools/testing/selftests/timers/mqueue-lat.c b/tools/testing/selftests/timers/mqueue-lat.c index a2a3924d0b41..efdb62470052 100644 --- a/tools/testing/selftests/timers/mqueue-lat.c +++ b/tools/testing/selftests/timers/mqueue-lat.c @@ -113,6 +113,7 @@ int main(int argc, char **argv) int ret;

printf("Mqueue latency : "); + fflush(stdout);

ret = mqueue_lat_test(); if (ret < 0) { diff --git a/tools/testing/selftests/timers/nanosleep.c b/tools/testing/selftests/timers/nanosleep.c index ff942ff7c9b3..2e6e94c02a33 100644 --- a/tools/testing/selftests/timers/nanosleep.c +++ b/tools/testing/selftests/timers/nanosleep.c @@ -153,6 +153,7 @@ int main(int argc, char **argv) continue;

printf("Nanosleep %-31s ", clockstring(clockid)); + fflush(stdout);

length = 10; while (length <= (NSEC_PER_SEC * 10)) { diff --git a/tools/testing/selftests/timers/nsleep-lat.c b/tools/testing/selftests/timers/nsleep-lat.c index 2d7898fda0f1..ac06cf10a5c2 100644 --- a/tools/testing/selftests/timers/nsleep-lat.c +++ b/tools/testing/selftests/timers/nsleep-lat.c @@ -166,6 +166,7 @@ int main(int argc, char **argv) continue;

printf("nsleep latency %-26s ", clockstring(clockid)); + fflush(stdout);

length = 10; while (length <= (NSEC_PER_SEC * 10)) { diff --git a/tools/testing/selftests/timers/raw_skew.c b/tools/testing/selftests/timers/raw_skew.c index 0ab937a17ebb..4e631da7f956 100644 --- a/tools/testing/selftests/timers/raw_skew.c +++ b/tools/testing/selftests/timers/raw_skew.c @@ -124,6 +124,7 @@ int main(int argv, char **argc) printf("WARNING: ADJ_OFFSET in progress, this will cause inaccurate results\n");

printf("Estimating clock drift: "); + fflush(stdout); sleep(120);

get_monotonic_and_raw(&mon, &raw); diff --git a/tools/testing/selftests/timers/set-tai.c b/tools/testing/selftests/timers/set-tai.c index dc88dbc8831f..3ae76ab483de 100644 --- a/tools/testing/selftests/timers/set-tai.c +++ b/tools/testing/selftests/timers/set-tai.c @@ -66,6 +66,7 @@ int main(int argc, char **argv) printf("tai offset started at %i\n", ret);

printf("Checking tai offsets can be properly set: "); + fflush(stdout); for (i = 1; i <= 60; i++) { ret = set_tai(i); ret = get_tai(); diff --git a/tools/testing/selftests/timers/set-tz.c b/tools/testing/selftests/timers/set-tz.c index f4184928b16b..b038131c9682 100644 --- a/tools/testing/selftests/timers/set-tz.c +++ b/tools/testing/selftests/timers/set-tz.c @@ -76,6 +76,7 @@ int main(int argc, char **argv) printf("tz_minuteswest started at %i, dst at %i\n", min, dst);

printf("Checking tz_minuteswest can be properly set: "); + fflush(stdout); for (i = -15*60; i < 15*60; i += 30) { ret = set_tz(i, dst); ret = get_tz_min(); @@ -87,6 +88,7 @@ int main(int argc, char **argv) printf("[OK]\n");

printf("Checking invalid tz_minuteswest values are caught: "); + fflush(stdout);

if (!set_tz(-15*60-1, dst)) { printf("[FAILED] %i didn't return failure!\n", -15*60-1); diff --git a/tools/testing/selftests/timers/threadtest.c b/tools/testing/selftests/timers/threadtest.c index e632e116f05e..a4bf736dd842 100644 --- a/tools/testing/selftests/timers/threadtest.c +++ b/tools/testing/selftests/timers/threadtest.c @@ -175,6 +175,7 @@ int main(int argc, char **argv) strftime(buf, 255, "%a, %d %b %Y %T %z", localtime(&start)); printf("%s\n", buf); printf("Testing consistency with %i threads for %ld seconds: ", thread_count, runtime); + fflush(stdout);

/* spawn */ for (i = 0; i < thread_count; i++) diff --git a/tools/testing/selftests/timers/valid-adjtimex.c b/tools/testing/selftests/timers/valid-adjtimex.c index 60fe3c569bd9..a747645d79f4 100644 --- a/tools/testing/selftests/timers/valid-adjtimex.c +++ b/tools/testing/selftests/timers/valid-adjtimex.c @@ -134,6 +134,7 @@ int validate_freq(void) /* Set the leap second insert flag */

printf("Testing ADJ_FREQ... "); + fflush(stdout); for (i = 0; i < NUM_FREQ_VALID; i++) { tx.modes = ADJ_FREQUENCY; tx.freq = valid_freq[i]; @@ -261,6 +262,7 @@ int set_bad_offset(long sec, long usec, int use_nano) int validate_set_offset(void) { printf("Testing ADJ_SETOFFSET... "); + fflush(stdout);

/* Test valid values */ if (set_offset(NSEC_PER_SEC - 1, 1))