[LTP] [PATCH] getrusage04: initialise [us]last to current values

[Jan Stancek <jstancek@redhat.com>]

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On slower machines, startup can take some time,
set last values to current [us]time before actual test.

This caused test to fail, because first delta contained
time spent by test starting up:
getrusage04    0  TINFO  :  utime:         999us; stime:        6998us
getrusage04    0  TINFO  :  utime:         999us; stime:        6998us
getrusage04    1  TFAIL  :  stime increased > 1000us: delta = 6998us

Signed-off-by: Jan Stancek <jstancek@redhat.com>
---
  testcases/kernel/syscalls/getrusage/getrusage04.c |    4 +++-
  1 files changed, 3 insertions(+), 1 deletions(-)



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diff --git a/testcases/kernel/syscalls/getrusage/getrusage04.c b/testcases/kernel/syscalls/getrusage/getrusage04.c
index e142d22..9801192 100644
--- a/testcases/kernel/syscalls/getrusage/getrusage04.c
+++ b/testcases/kernel/syscalls/getrusage/getrusage04.c
@@ -100,10 +100,12 @@ int main(int argc, char *argv[])
 
 	for (lc = 0; TEST_LOOPING(lc); lc++) {
 		Tst_count = 0; i = 0;
-		ulast = 0, slast = 0;
 		SAFE_GETRUSAGE(cleanup, RUSAGE_THREAD, &usage);
 		tst_resm(TINFO, "utime:%12luus; stime:%12luus",
 			usage.ru_utime.tv_usec, usage.ru_stime.tv_usec);
+		ulast = usage.ru_utime.tv_usec;
+		slast = usage.ru_stime.tv_usec;
+
 		while (i < RECORD_MAX) {
 			SAFE_GETRUSAGE(cleanup, RUSAGE_THREAD, &usage);
 			udelta = usage.ru_utime.tv_usec - ulast;


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