1 files changed, 14 insertions, 0 deletions

diff --git a/fs/fuse/fuse_i.h b/fs/fuse/fuse_i.h
index 242e69cb1251..19c7185a7546 100644
--- a/fs/fuse/fuse_i.h
+++ b/fs/fuse/fuse_i.h
@@ -18,6 +18,9 @@
 /** Max number of pages that can be used in a single read request */
 #define FUSE_MAX_PAGES_PER_REQ 32
 
+/** Maximum number of outstanding background requests */
+#define FUSE_MAX_BACKGROUND 10
+
 /** It could be as large as PATH_MAX, but would that have any uses? */
 #define FUSE_NAME_MAX 1024
 
@@ -241,6 +244,17 @@ struct fuse_conn {
             interrupted request) */
         struct list_head background;
 
+        /** Number of requests currently in the background */
+        unsigned num_background;
+
+        /** Flag indicating if connection is blocked.  This will be
+            the case before the INIT reply is received, and if there
+            are too many outstading backgrounds requests */
+        int blocked;
+
+        /** waitq for blocked connection */
+        wait_queue_head_t blocked_waitq;
+
         /** RW semaphore for exclusion with fuse_put_super() */
         struct rw_semaphore sbput_sem;