2 files changed, 16 insertions, 0 deletions

diff --git a/block/bsg.c b/block/bsg.c
index 5358f9ae13c1..54106f052f70 100644
--- a/block/bsg.c
+++ b/block/bsg.c
@@ -1065,6 +1065,11 @@ EXPORT_SYMBOL_GPL(bsg_register_queue);
 
 static struct cdev bsg_cdev;
 
+static char *bsg_nodename(struct device *dev)
+{
+        return kasprintf(GFP_KERNEL, "bsg/%s", dev_name(dev));
+}
+
 static int __init bsg_init(void)
 {
         int ret, i;
@@ -1085,6 +1090,7 @@ static int __init bsg_init(void)
                 ret = PTR_ERR(bsg_class);
                 goto destroy_kmemcache;
         }
+        bsg_class->nodename = bsg_nodename;
 
         ret = alloc_chrdev_region(&devid, 0, BSG_MAX_DEVS, "bsg");
         if (ret)
diff --git a/block/genhd.c b/block/genhd.c
index fe7ccc0a618f..f4c64c2b303a 100644
--- a/block/genhd.c
+++ b/block/genhd.c
@@ -996,10 +996,20 @@ struct class block_class = {
         .name           = "block",
 };
 
+static char *block_nodename(struct device *dev)
+{
+        struct gendisk *disk = dev_to_disk(dev);
+
+        if (disk->nodename)
+                return disk->nodename(disk);
+        return NULL;
+}
+
 static struct device_type disk_type = {
         .name           = "disk",
         .groups         = disk_attr_groups,
         .release        = disk_release,
+        .nodename       = block_nodename,
 };
 
 #ifdef CONFIG_PROC_FS