proc: move /proc/diskstats boilerplate to block/genhd.c

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Acked-by: Jens Axboe <jens.axboe@oracle.com>

1 files changed, 14 insertions, 1 deletions

diff --git a/block/genhd.c b/block/genhd.c
index 15f4d2b12c48..4e5e7493f676 100644
--- a/block/genhd.c
+++ b/block/genhd.c
@@ -1005,15 +1005,28 @@ static int diskstats_show(struct seq_file *seqf, void *v)
         return 0;
 }
 
-const struct seq_operations diskstats_op = {
+static const struct seq_operations diskstats_op = {
         .start  = disk_seqf_start,
         .next   = disk_seqf_next,
         .stop   = disk_seqf_stop,
         .show   = diskstats_show
 };
 
+static int diskstats_open(struct inode *inode, struct file *file)
+{
+        return seq_open(file, &diskstats_op);
+}
+
+static const struct file_operations proc_diskstats_operations = {
+        .open           = diskstats_open,
+        .read           = seq_read,
+        .llseek         = seq_lseek,
+        .release        = seq_release,
+};
+
 static int __init proc_genhd_init(void)
 {
+        proc_create("diskstats", 0, NULL, &proc_diskstats_operations);
         proc_create("partitions", 0, NULL, &proc_partitions_operations);
         return 0;
 }