add new system file

hc

2024-02-20 102a0743326a03cd1a1202ceda21e175b7d3575c

 kernel/tools/testing/selftests/powerpc/harness.c
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@@ -1,6 +1,6 @@
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+// SPDX-License-Identifier: GPL-2.0-only
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 /*
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  * Copyright 2013, Michael Ellerman, IBM Corp.
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- * Licensed under GPLv2.
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  */
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 #include <errno.h>
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@@ -21,6 +21,7 @@
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 #define KILL_TIMEOUT	5
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+/* Setting timeout to -1 disables the alarm */
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 static uint64_t timeout = 120;
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 int run_test(int (test_function)(void), char *name)
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@@ -43,8 +44,9 @@
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 	setpgid(pid, pid);
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-	/* Wake us up in timeout seconds */
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-	alarm(timeout);
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+	if (timeout != -1)
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+		/* Wake us up in timeout seconds */
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+		alarm(timeout);
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 	terminated = false;
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