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-rw-r--r--block/genhd.c14
1 files changed, 14 insertions, 0 deletions
diff --git a/block/genhd.c b/block/genhd.c
index 626c8406f21a..9eca1f7d35c9 100644
--- a/block/genhd.c
+++ b/block/genhd.c
@@ -549,6 +549,20 @@ out_free_ext_minor:
EXPORT_SYMBOL(device_add_disk);
/**
+ * blk_mark_disk_dead - mark a disk as dead
+ * @disk: disk to mark as dead
+ *
+ * Mark as disk as dead (e.g. surprise removed) and don't accept any new I/O
+ * to this disk.
+ */
+void blk_mark_disk_dead(struct gendisk *disk)
+{
+ set_bit(GD_DEAD, &disk->state);
+ blk_queue_start_drain(disk->queue);
+}
+EXPORT_SYMBOL_GPL(blk_mark_disk_dead);
+
+/**
* del_gendisk - remove the gendisk
* @disk: the struct gendisk to remove
*