commit c7a6fe684c7cea3fb9fba6dbb5cceeb698bfd318
author Jooyung Han <jooyung@google.com> Fri Jan 06 05:50:26 2023 +0000
committer Jooyung Han <jooyung@google.com> Fri Jan 06 06:20:54 2023 +0000
tree 2966205916dcea2c46bf6f60bb9951c8c85a12f1
parent 5400ae2440229470362df374b440889ff0810e1b

Revert "Migrate the blkio controller to the v2 cgroup hierarchy"

Revert submission 2218645-blkio-cgroup-v2

Reason for revert: 260143932, 264620181

Reverted changes: /q/submissionid:2218645-blkio-cgroup-v2

Change-Id: I8bf1592cd5f7234f28094fe80341c37d42fa609b

rootdir/init.rc

diff --git a/rootdir/init.rc b/rootdir/init.rc
index 408daff..323d9cb 100644
--- a/rootdir/init.rc
+++ b/rootdir/init.rc
@@ -218,6 +218,26 @@
     write /dev/stune/nnapi-hal/schedtune.boost 1
     write /dev/stune/nnapi-hal/schedtune.prefer_idle 1
 
+    # Create blkio group and apply initial settings.
+    # This feature needs kernel to support it, and the
+    # device's init.rc must actually set the correct values.
+    mkdir /dev/blkio/background
+    chown system system /dev/blkio
+    chown system system /dev/blkio/background
+    chown system system /dev/blkio/tasks
+    chown system system /dev/blkio/background/tasks
+    chown system system /dev/blkio/cgroup.procs
+    chown system system /dev/blkio/background/cgroup.procs
+    chmod 0664 /dev/blkio/tasks
+    chmod 0664 /dev/blkio/background/tasks
+    chmod 0664 /dev/blkio/cgroup.procs
+    chmod 0664 /dev/blkio/background/cgroup.procs
+    write /dev/blkio/blkio.weight 1000
+    write /dev/blkio/background/blkio.weight 200
+    write /dev/blkio/background/blkio.bfq.weight 10
+    write /dev/blkio/blkio.group_idle 0
+    write /dev/blkio/background/blkio.group_idle 0
+
     restorecon_recursive /mnt
 
     mount configfs none /config nodev noexec nosuid