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[v1,1/3] kselftest/arm64: Don't repeat termination handler for fp-stress

Message ID 20220921181345.618085-2-broonie@kernel.org
State Accepted
Commit c38d381fff26ece271447d558dcb4b42f0ccda51
Headers show
Series kselftest/arm64: fp-stress updates | expand

Commit Message

Mark Brown Sept. 21, 2022, 6:13 p.m. UTC
When fp-stress gets a termination signal it sets a flag telling itself to
exit and sends a termination signal to all the children. If the flag is set
then don't bother repeating this process, it isn't going to accomplish
anything other than consume CPU time which can be an issue when running in
emulation.

Signed-off-by: Mark Brown <broonie@kernel.org>
---
 tools/testing/selftests/arm64/fp/fp-stress.c | 4 ++++
 1 file changed, 4 insertions(+)
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Patch

diff --git a/tools/testing/selftests/arm64/fp/fp-stress.c b/tools/testing/selftests/arm64/fp/fp-stress.c
index a5c0ebef2419..4387c3cacaa7 100644
--- a/tools/testing/selftests/arm64/fp/fp-stress.c
+++ b/tools/testing/selftests/arm64/fp/fp-stress.c
@@ -255,6 +255,10 @@  static void handle_exit_signal(int sig, siginfo_t *info, void *context)
 {
 	int i;
 
+	/* If we're already exiting then don't signal again */
+	if (terminate)
+		return;
+
 	ksft_print_msg("Got signal, exiting...\n");
 
 	terminate = true;