diff --git a/fs/xfs/xfs_linux.h b/fs/xfs/xfs_linux.h
index 99562ec0de56..74d3576c8043 100644
--- a/fs/xfs/xfs_linux.h
+++ b/fs/xfs/xfs_linux.h
@@ -285,8 +285,10 @@ static inline uint64_t howmany_64(uint64_t x, uint32_t y)
 #define XFS_IS_REALTIME_INODE(ip)			\
 	(((ip)->i_d.di_flags & XFS_DIFLAG_REALTIME) &&	\
 	 (ip)->i_mount->m_rtdev_targp)
+#define XFS_IS_REALTIME_MOUNT(mp) ((mp)->m_rtdev_targp ? 1 : 0)
 #else
 #define XFS_IS_REALTIME_INODE(ip) (0)
+#define XFS_IS_REALTIME_MOUNT(mp) (0)
 #endif
 
 #endif /* __XFS_LINUX__ */
diff --git a/fs/xfs/xfs_super.c b/fs/xfs/xfs_super.c
index 1dacccc367f8..a66335599c7d 100644
--- a/fs/xfs/xfs_super.c
+++ b/fs/xfs/xfs_super.c
@@ -1153,6 +1153,14 @@ xfs_fs_statfs(
 	    ((mp->m_qflags & (XFS_PQUOTA_ACCT|XFS_PQUOTA_ENFD))) ==
 			      (XFS_PQUOTA_ACCT|XFS_PQUOTA_ENFD))
 		xfs_qm_statvfs(ip, statp);
+
+	if (XFS_IS_REALTIME_MOUNT(mp) &&
+	    (ip->i_d.di_flags & (XFS_DIFLAG_RTINHERIT | XFS_DIFLAG_REALTIME))) {
+		statp->f_blocks = sbp->sb_rblocks;
+		statp->f_bavail = statp->f_bfree =
+			sbp->sb_frextents * sbp->sb_rextsize;
+	}
+
 	return 0;
 }