1 files changed, 44 insertions, 0 deletions

diff --git a/fs/proc/softirqs.c b/fs/proc/softirqs.c
new file mode 100644
index 000000000000..1807c2419f17
--- /dev/null
+++ b/fs/proc/softirqs.c
@@ -0,0 +1,44 @@
+#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_printf(p, "                ");
+        for_each_possible_cpu(i)
+                seq_printf(p, "CPU%-8d", i);
+        seq_printf(p, "\n");
+
+        for (i = 0; i < NR_SOFTIRQS; i++) {
+                seq_printf(p, "%8s:", softirq_to_name[i]);
+                for_each_possible_cpu(j)
+                        seq_printf(p, " %10u", kstat_softirqs_cpu(i, j));
+                seq_printf(p, "\n");
+        }
+        return 0;
+}
+
+static int softirqs_open(struct inode *inode, struct file *file)
+{
+        return single_open(file, show_softirqs, NULL);
+}
+
+static const struct file_operations proc_softirqs_operations = {
+        .open           = softirqs_open,
+        .read           = seq_read,
+        .llseek         = seq_lseek,
+        .release        = single_release,
+};
+
+static int __init proc_softirqs_init(void)
+{
+        proc_create("softirqs", 0, NULL, &proc_softirqs_operations);
+        return 0;
+}
+module_init(proc_softirqs_init);