init: Remove schedtune support
Schedtune was an out of tree cgroup controller present in Android
kernels up to 4.19. It was replaced with uclamp and the cpu controller.
Now that 4.19 is EOL and unsupported, and schedtune is not present in
any supported Android kernels, remove the userspace support for
schedtune.
Bug: 362504801
Change-Id: Iab7b7295d1fb443209d5868ac5c65dca0aabfbab
diff --git a/init/service_parser.cpp b/init/service_parser.cpp
index e6f3af6..ec3b176 100644
--- a/init/service_parser.cpp
+++ b/init/service_parser.cpp
@@ -538,12 +538,9 @@
// when we migrate to cgroups v2 while these hardcoded paths stay the same.
static std::optional<const std::string> ConvertTaskFileToProfile(const std::string& file) {
static const std::map<const std::string, const std::string> map = {
- {"/dev/stune/top-app/tasks", "MaxPerformance"},
- {"/dev/stune/foreground/tasks", "HighPerformance"},
{"/dev/cpuset/camera-daemon/tasks", "CameraServiceCapacity"},
{"/dev/cpuset/foreground/tasks", "ProcessCapacityHigh"},
{"/dev/cpuset/system-background/tasks", "ServiceCapacityLow"},
- {"/dev/stune/nnapi-hal/tasks", "NNApiHALPerformance"},
{"/dev/blkio/background/tasks", "LowIoPriority"},
};
auto iter = map.find(file);
diff --git a/rootdir/init.rc b/rootdir/init.rc
index 1acd637..c8b725d 100644
--- a/rootdir/init.rc
+++ b/rootdir/init.rc
@@ -112,37 +112,6 @@
# Create socket dir for ot-daemon
mkdir /dev/socket/ot-daemon 0770 thread_network thread_network
- # Create energy-aware scheduler tuning nodes
- mkdir /dev/stune/foreground
- mkdir /dev/stune/background
- mkdir /dev/stune/top-app
- mkdir /dev/stune/rt
- chown system system /dev/stune
- chown system system /dev/stune/foreground
- chown system system /dev/stune/background
- chown system system /dev/stune/top-app
- chown system system /dev/stune/rt
- chown system system /dev/stune/tasks
- chown system system /dev/stune/foreground/tasks
- chown system system /dev/stune/background/tasks
- chown system system /dev/stune/top-app/tasks
- chown system system /dev/stune/rt/tasks
- chown system system /dev/stune/cgroup.procs
- chown system system /dev/stune/foreground/cgroup.procs
- chown system system /dev/stune/background/cgroup.procs
- chown system system /dev/stune/top-app/cgroup.procs
- chown system system /dev/stune/rt/cgroup.procs
- chmod 0664 /dev/stune/tasks
- chmod 0664 /dev/stune/foreground/tasks
- chmod 0664 /dev/stune/background/tasks
- chmod 0664 /dev/stune/top-app/tasks
- chmod 0664 /dev/stune/rt/tasks
- chmod 0664 /dev/stune/cgroup.procs
- chmod 0664 /dev/stune/foreground/cgroup.procs
- chmod 0664 /dev/stune/background/cgroup.procs
- chmod 0664 /dev/stune/top-app/cgroup.procs
- chmod 0664 /dev/stune/rt/cgroup.procs
-
# cpuctl hierarchy for devices using utilclamp
mkdir /dev/cpuctl/foreground
mkdir /dev/cpuctl/foreground_window
@@ -216,24 +185,6 @@
chmod 0664 /dev/cpuctl/camera-daemon/tasks
chmod 0664 /dev/cpuctl/camera-daemon/cgroup.procs
- # Create an stune group for camera-specific processes
- mkdir /dev/stune/camera-daemon
- chown system system /dev/stune/camera-daemon
- chown system system /dev/stune/camera-daemon/tasks
- chown system system /dev/stune/camera-daemon/cgroup.procs
- chmod 0664 /dev/stune/camera-daemon/tasks
- chmod 0664 /dev/stune/camera-daemon/cgroup.procs
-
- # Create an stune group for NNAPI HAL processes
- mkdir /dev/stune/nnapi-hal
- chown system system /dev/stune/nnapi-hal
- chown system system /dev/stune/nnapi-hal/tasks
- chown system system /dev/stune/nnapi-hal/cgroup.procs
- chmod 0664 /dev/stune/nnapi-hal/tasks
- chmod 0664 /dev/stune/nnapi-hal/cgroup.procs
- 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.