Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 726a68cb authored Oct 08, 2019 by Marco Ballesio

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

parent e91c76b2

libprocessgroup/profiles/cgroups.json

+7 −0

Original line number	Diff line number	Diff line
		@@ -39,6 +39,13 @@
		"Mode": "0755",
		"UID": "system",
		"GID": "system"
		},
		{
		"Controller": "freezer",
		"Path": "/dev/freezer",
		"Mode": "0755",
		"UID": "system",
		"GID": "system"
		}
		],
		"Cgroups2": {

libprocessgroup/profiles/task_profiles.json

+26 −0

Original line number	Diff line number	Diff line
		@@ -66,6 +66,32 @@
		}
		]
		},
		{
		"Name": "Frozen",
		"Actions": [
		{
		"Name": "JoinCgroup",
		"Params":
		{
		"Controller": "freezer",
		"Path": "frozen"
		}
		}
		]
		},
		{
		"Name": "Unfrozen",
		"Actions": [
		{
		"Name": "JoinCgroup",
		"Params":
		{
		"Controller": "freezer",
		"Path": ""
		}
		}
		]
		},
		{
		"Name": "NormalPerformance",
		"Actions": [

rootdir/init.rc

+10 −0

Original line number	Diff line number	Diff line
		@@ -283,6 +283,16 @@ on init
		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