diff --git a/sepolicy/private/file.te b/sepolicy/private/file.te
index 79a1d17..288287c 100644
--- a/sepolicy/private/file.te
+++ b/sepolicy/private/file.te
@@ -18,3 +18,4 @@ type debugfs_wlan, debugfs_type, fs_type;
 type debugfs_sched_features, debugfs_type, fs_type;
 type proc_sysctl_schedboost, proc_type, fs_type;
 type sysfs_tp, fs_type, sysfs_type;
+type sysfs_mmc_host, fs_type, sysfs_type;
diff --git a/sepolicy/private/vold.te b/sepolicy/private/vold.te
new file mode 100644
index 0000000..9cd14b3
--- /dev/null
+++ b/sepolicy/private/vold.te
@@ -0,0 +1,2 @@
+# For setting read_ahead_kb
+allow vold sysfs_mmc_host:file w_file_perms;