linux-kernel - [PATCH] docs/cpu-load: format the example code.

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Message-ID: <20201018170557.GA7670@rlk>
Date:   Mon, 19 Oct 2020 01:05:57 +0800
From:   Hui Su <sh_def@....com>
To:     corbet@....net, dsterba@...e.com, mchehab+huawei@...nel.org,
        sh_def@....com, linux-doc@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: [PATCH] docs/cpu-load: format the example code.

format the example code.

Signed-off-by: Hui Su <sh_def@....com>
---
 Documentation/admin-guide/cpu-load.rst | 63 ++++++++++++++------------
 1 file changed, 33 insertions(+), 30 deletions(-)

diff --git a/Documentation/admin-guide/cpu-load.rst b/Documentation/admin-guide/cpu-load.rst
index ebdecf864080..f3ada90e9ca8 100644
--- a/Documentation/admin-guide/cpu-load.rst
+++ b/Documentation/admin-guide/cpu-load.rst
@@ -61,43 +61,46 @@ will lead to quite erratic information inside ``/proc/stat``::
 
 	static volatile sig_atomic_t stop;
 
-	static void sighandler (int signr)
+	static void sighandler(int signr)
 	{
-	(void) signr;
-	stop = 1;
+		(void) signr;
+		stop = 1;
 	}
+
 	static unsigned long hog (unsigned long niters)
 	{
-	stop = 0;
-	while (!stop && --niters);
-	return niters;
+		stop = 0;
+		while (!stop && --niters);
+		return niters;
 	}
+
 	int main (void)
 	{
-	int i;
-	struct itimerval it = { .it_interval = { .tv_sec = 0, .tv_usec = 1 },
-				.it_value = { .tv_sec = 0, .tv_usec = 1 } };
-	sigset_t set;
-	unsigned long v[HIST];
-	double tmp = 0.0;
-	unsigned long n;
-	signal (SIGALRM, &sighandler);
-	setitimer (ITIMER_REAL, &it, NULL);
-
-	hog (ULONG_MAX);
-	for (i = 0; i < HIST; ++i) v[i] = ULONG_MAX - hog (ULONG_MAX);
-	for (i = 0; i < HIST; ++i) tmp += v[i];
-	tmp /= HIST;
-	n = tmp - (tmp / 3.0);
-
-	sigemptyset (&set);
-	sigaddset (&set, SIGALRM);
-
-	for (;;) {
-		hog (n);
-		sigwait (&set, &i);
-	}
-	return 0;
+		int i;
+		struct itimerval it = {
+			.it_interval = { .tv_sec = 0, .tv_usec = 1 },
+			.it_value    = { .tv_sec = 0, .tv_usec = 1 } };
+		sigset_t set;
+		unsigned long v[HIST];
+		double tmp = 0.0;
+		unsigned long n;
+		signal(SIGALRM, &sighandler);
+		setitimer(ITIMER_REAL, &it, NULL);
+
+		hog (ULONG_MAX);
+		for (i = 0; i < HIST; ++i) v[i] = ULONG_MAX - hog(ULONG_MAX);
+		for (i = 0; i < HIST; ++i) tmp += v[i];
+		tmp /= HIST;
+		n = tmp - (tmp / 3.0);
+
+		sigemptyset(&set);
+		sigaddset(&set, SIGALRM);
+
+		for (;;) {
+			hog(n);
+			sigwait(&set, &i);
+		}
+		return 0;
 	}
 
 
-- 
2.25.1