block: kill genhd_media_change_notify()

There's no user of the facility.  Kill it.

Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Jens Axboe <jaxboe@fusionio.com>

diff --git a/block/genhd.c b/block/genhd.c
index 5fa2b44..0905ab2 100644 (file)
--- a/block/genhd.c
+++ b/block/genhd.c
@@ -1110,29 +1110,6 @@ static int __init proc_genhd_init(void)
 module_init(proc_genhd_init);
 #endif /* CONFIG_PROC_FS */
 
-static void media_change_notify_thread(struct work_struct *work)
-{
-       struct gendisk *gd = container_of(work, struct gendisk, async_notify);
-       char event[] = "MEDIA_CHANGE=1";
-       char *envp[] = { event, NULL };
-
-       /*
-        * set enviroment vars to indicate which event this is for
-        * so that user space will know to go check the media status.
-        */
-       kobject_uevent_env(&disk_to_dev(gd)->kobj, KOBJ_CHANGE, envp);
-       put_device(gd->driverfs_dev);
-}
-
-#if 0
-void genhd_media_change_notify(struct gendisk *disk)
-{
-       get_device(disk->driverfs_dev);
-       schedule_work(&disk->async_notify);
-}
-EXPORT_SYMBOL_GPL(genhd_media_change_notify);
-#endif  /*  0  */
-
 dev_t blk_lookup_devt(const char *name, int partno)
 {
        dev_t devt = MKDEV(0, 0);
@@ -1198,8 +1175,6 @@ struct gendisk *alloc_disk_node(int minors, int node_id)
                disk_to_dev(disk)->class = &block_class;
                disk_to_dev(disk)->type = &disk_type;
                device_initialize(disk_to_dev(disk));
-               INIT_WORK(&disk->async_notify,
-                       media_change_notify_thread);
        }
        return disk;
 }

diff --git a/include/linux/genhd.h b/include/linux/genhd.h
index 7a7b9c1..5e4e692 100644 (file)
--- a/include/linux/genhd.h
+++ b/include/linux/genhd.h
@@ -173,7 +173,6 @@ struct gendisk {
        struct timer_rand_state *random;
 
        atomic_t sync_io;               /* RAID */
-       struct work_struct async_notify;
 #ifdef  CONFIG_BLK_DEV_INTEGRITY
        struct blk_integrity *integrity;
 #endif