linux-kernel - [PATCH 2/3] rcuperf: Insert space between flag and message consistently

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Message-Id: <1471766080-17501-2-git-send-email-sj38.park@gmail.com>
Date:   Sun, 21 Aug 2016 16:54:39 +0900
From:   SeongJae Park <sj38.park@...il.com>
To:     paulmck@...ux.vnet.ibm.com
Cc:     linux-kernel@...r.kernel.org, SeongJae Park <sj38.park@...il.com>
Subject: [PATCH 2/3] rcuperf: Insert space between flag and message consistently

Few output messages of rcuperf has no space between flag and start of
message while every other messages keeps a space consistently.  It makes
output messages to be inconsistent and weird especially when it be read
by dmesg with color option enabled.  This commit fixes the problem by
modifying a pr_alert() call and PERFOUT_STRING() macro function.

Signed-off-by: SeongJae Park <sj38.park@...il.com>
---
 kernel/rcu/rcuperf.c | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/kernel/rcu/rcuperf.c b/kernel/rcu/rcuperf.c
index 6025342..03ba447 100644
--- a/kernel/rcu/rcuperf.c
+++ b/kernel/rcu/rcuperf.c
@@ -52,7 +52,7 @@ MODULE_AUTHOR("Paul E. McKenney <paulmck@...ux.vnet.ibm.com>");
 
 #define PERF_FLAG "-perf:"
 #define PERFOUT_STRING(s) \
-	pr_alert("%s" PERF_FLAG s "\n", perf_type)
+	pr_alert("%s" PERF_FLAG " %s\n", perf_type, s)
 #define VERBOSE_PERFOUT_STRING(s) \
 	do { if (verbose) pr_alert("%s" PERF_FLAG " %s\n", perf_type, s); } while (0)
 #define VERBOSE_PERFOUT_ERRSTRING(s) \
@@ -389,9 +389,8 @@ rcu_perf_writer(void *arg)
 			sp.sched_priority = 0;
 			sched_setscheduler_nocheck(current,
 						   SCHED_NORMAL, &sp);
-			pr_alert("%s" PERF_FLAG
-				 "rcu_perf_writer %ld has %d measurements\n",
-				 perf_type, me, MIN_MEAS);
+			pr_alert("%s%s rcu_perf_writer %ld has %d measurements\n",
+				 perf_type, PERF_FLAG, me, MIN_MEAS);
 			if (atomic_inc_return(&n_rcu_perf_writer_finished) >=
 			    nrealwriters) {
 				schedule_timeout_interruptible(10);
-- 
1.9.1