afs: add bdi backing to mount session.

This ensures that dirty data gets flushed properly.

Signed-off-by: Jens Axboe <jens.axboe@oracle.com>

1 files changed, 2 insertions, 0 deletions

diff --git a/fs/afs/internal.h b/fs/afs/internal.h
index c54dad4e6063..a10f2582844f 100644
--- a/fs/afs/internal.h
+++ b/fs/afs/internal.h
@@ -19,6 +19,7 @@
 #include <linux/workqueue.h>
 #include <linux/sched.h>
 #include <linux/fscache.h>
+#include <linux/backing-dev.h>
 
 #include "afs.h"
 #include "afs_vl.h"
@@ -313,6 +314,7 @@ struct afs_volume {
         unsigned short          rjservers;      /* number of servers discarded due to -ENOMEDIUM */
         struct afs_server       *servers[8];    /* servers on which volume resides (ordered) */
         struct rw_semaphore     server_sem;     /* lock for accessing current server */
+        struct backing_dev_info bdi;
 };
 
 /*