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, 1 insertions, 0 deletions

diff --git a/fs/afs/super.c b/fs/afs/super.c
index 14f6431598ad..e932e5a3a0c1 100644
--- a/fs/afs/super.c
+++ b/fs/afs/super.c
@@ -311,6 +311,7 @@ static int afs_fill_super(struct super_block *sb, void *data)
         sb->s_magic             = AFS_FS_MAGIC;
         sb->s_op                = &afs_super_ops;
         sb->s_fs_info           = as;
+        sb->s_bdi               = &as->volume->bdi;
 
         /* allocate the root inode and dentry */
         fid.vid         = as->volume->vid;