commit 726a68cb401538da8843ee3521e7bd8f81823e48
author Marco Ballesio <balejs@google.com> Tue Oct 08 09:12:22 2019 -0700
committer Marco Ballesio <balejs@google.com> Wed Nov 13 20:21:07 2019 +0000
tree 4b02609c6510602fe70e4aa24fc4af7eb24355ed
parent e91c76b2104792d839b2bd3036e7e265427dcdc1

Add support for freezer cgroup

Adds the freezer cgroup to process groups

Change-Id: Ib7a8dbe776ff156ff3827b9a659365384f3e6ac8
Bug: 143308662
Test: manual - frozen processes aren't scheduled for execution until
unfrozen

rootdir/init.rc

diff --git a/rootdir/init.rc b/rootdir/init.rc
index bc18e27..674b737 100644
--- a/rootdir/init.rc
+++ b/rootdir/init.rc
@@ -283,6 +283,16 @@
     chmod 0664 /dev/cpuset/restricted/tasks
     chmod 0664 /dev/cpuset/tasks
 
+    # freezer cgroup entries
+    mkdir /dev/freezer/frozen
+    write /dev/freezer/frozen/freezer.state FROZEN
+    chown system system /dev/freezer/cgroup.procs
+    chown system system /dev/freezer/frozen
+    chown system system /dev/freezer/frozen/freezer.state
+    chown system system /dev/freezer/frozen/cgroup.procs
+
+    chmod 0444 /dev/freezer/frozen/freezer.state
+
     # make the PSI monitor accessible to others
     chown system system /proc/pressure/memory
     chmod 0664 /proc/pressure/memory