linux-kernel - [PATCH 1/2] refscale: simplify the errexit checkpoint

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Date:   Fri, 22 Oct 2021 18:51:10 +0800
From:   Li Zhijian <lizhijian@...fujitsu.com>
To:     <dave@...olabs.net>, <paulmck@...nel.org>, <josh@...htriplett.org>,
        <rostedt@...dmis.org>, <mathieu.desnoyers@...icios.com>,
        <jiangshanlai@...il.com>, <joel@...lfernandes.org>,
        <rcu@...r.kernel.org>
CC:     <linux-kernel@...r.kernel.org>,
        Li Zhijian <lizhijian@...fujitsu.com>
Subject: [PATCH 1/2] refscale: simplify the errexit checkpoint

Signed-off-by: Li Zhijian <lizhijian@...fujitsu.com>
---
 kernel/rcu/refscale.c | 17 ++++++++---------
 1 file changed, 8 insertions(+), 9 deletions(-)

diff --git a/kernel/rcu/refscale.c b/kernel/rcu/refscale.c
index 66dc14cf5687..2cbe2a2ba387 100644
--- a/kernel/rcu/refscale.c
+++ b/kernel/rcu/refscale.c
@@ -698,26 +698,25 @@ static int main_func(void *arg)
 	// Print the average of all experiments
 	SCALEOUT("END OF TEST. Calculating average duration per loop (nanoseconds)...\n");
 
-	if (!errexit) {
-		buf[0] = 0;
-		strcat(buf, "\n");
-		strcat(buf, "Runs\tTime(ns)\n");
-	}
+	if (errexit)
+		goto err;
+
+	buf[0] = 0;
+	strcat(buf, "\n");
+	strcat(buf, "Runs\tTime(ns)\n");
 
 	for (exp = 0; exp < nruns; exp++) {
 		u64 avg;
 		u32 rem;
 
-		if (errexit)
-			break;
 		avg = div_u64_rem(result_avg[exp], 1000, &rem);
 		sprintf(buf1, "%d\t%llu.%03u\n", exp + 1, avg, rem);
 		strcat(buf, buf1);
 	}
 
-	if (!errexit)
-		SCALEOUT("%s", buf);
+	SCALEOUT("%s", buf);
 
+err:
 	// This will shutdown everything including us.
 	if (shutdown) {
 		shutdown_start = 1;
-- 
2.33.0