1 files changed, 8 insertions, 0 deletions

diff --git a/include/linux/nbd.h b/include/linux/nbd.h
index 090e210e98f0..f95d51fae733 100644
--- a/include/linux/nbd.h
+++ b/include/linux/nbd.h
@@ -37,18 +37,26 @@ enum {
 /* userspace doesn't need the nbd_device structure */
 #ifdef __KERNEL__
 
+#include <linux/wait.h>
+
 /* values for flags field */
 #define NBD_READ_ONLY 0x0001
 #define NBD_WRITE_NOCHK 0x0002
 
+struct request;
+
 struct nbd_device {
         int flags;
         int harderror;          /* Code of hard error                   */
         struct socket * sock;
         struct file * file;     /* If == NULL, device is not ready, yet */
         int magic;
+
         spinlock_t queue_lock;
         struct list_head queue_head;/* Requests are added here...       */
+        struct request *active_req;
+        wait_queue_head_t active_wq;
+
         struct semaphore tx_lock;
         struct gendisk *disk;
         int blksize;