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-rw-r--r--fs/proc/softirqs.c33
1 files changed, 33 insertions, 0 deletions
diff --git a/fs/proc/softirqs.c b/fs/proc/softirqs.c
new file mode 100644
index 000000000..12901dcf5
--- /dev/null
+++ b/fs/proc/softirqs.c
@@ -0,0 +1,33 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <linux/init.h>
+#include <linux/kernel_stat.h>
+#include <linux/proc_fs.h>
+#include <linux/seq_file.h>
+
+/*
+ * /proc/softirqs ... display the number of softirqs
+ */
+static int show_softirqs(struct seq_file *p, void *v)
+{
+ int i, j;
+
+ seq_puts(p, " ");
+ for_each_possible_cpu(i)
+ seq_printf(p, "CPU%-8d", i);
+ seq_putc(p, '\n');
+
+ for (i = 0; i < NR_SOFTIRQS; i++) {
+ seq_printf(p, "%12s:", softirq_to_name[i]);
+ for_each_possible_cpu(j)
+ seq_printf(p, " %10u", kstat_softirqs_cpu(i, j));
+ seq_putc(p, '\n');
+ }
+ return 0;
+}
+
+static int __init proc_softirqs_init(void)
+{
+ proc_create_single("softirqs", 0, NULL, show_softirqs);
+ return 0;
+}
+fs_initcall(proc_softirqs_init);