Merge cherrypicks of ['android-review.googlesource.com/2929791', 'android-review.googlesource.com/2929790'] into 24Q1-release.android-14.0.0_r33android-14.0.0_r32android-14.0.0_r31android-14.0.0_r30android-14.0.0_r29android14-qpr2-s3-releaseandroid14-qpr2-s2-releaseandroid14-qpr2-s1-releaseandroid14-qpr2-release

Change-Id: I90b726358d80f569dde7b69fc7827cf9bf2a1812

3 files changed, 39 insertions, 150 deletions

diff --git a/libprocessgroup/profiles/cgroups.json b/libprocessgroup/profiles/cgroups.json
index d013ec858..3e4393df2 100644
--- a/libprocessgroup/profiles/cgroups.json
+++ b/libprocessgroup/profiles/cgroups.json
@@ -1,6 +1,13 @@
 {
   "Cgroups": [
     {
+      "Controller": "blkio",
+      "Path": "/dev/blkio",
+      "Mode": "0775",
+      "UID": "system",
+      "GID": "system"
+    },
+    {
       "Controller": "cpu",
       "Path": "/dev/cpuctl",
       "Mode": "0755",
@@ -32,12 +39,6 @@
       {
         "Controller": "freezer",
         "Path": "."
-      },
-      {
-        "Controller": "io",
-        "Path": ".",
-        "NeedsActivation": true,
-        "Optional": true
       }
     ]
   }
diff --git a/libprocessgroup/profiles/task_profiles.json b/libprocessgroup/profiles/task_profiles.json
index f2ef316e2..1fc66ba10 100644
--- a/libprocessgroup/profiles/task_profiles.json
+++ b/libprocessgroup/profiles/task_profiles.json
@@ -76,26 +76,6 @@
       "Name": "FreezerState",
       "Controller": "freezer",
       "File": "cgroup.freeze"
-    },
-    {
-      "Name": "BfqWeight",
-      "Controller": "io",
-      "File": "io.bfq.weight"
-    },
-    {
-      "Name": "CfqGroupIdle",
-      "Controller": "io",
-      "File": "io.group_idle"
-    },
-    {
-      "Name": "CfqWeight",
-      "Controller": "io",
-      "File": "io.weight"
-    },
-    {
-      "Name": "IoPrioClass",
-      "Controller": "io",
-      "File": "io.prio.class"
     }
   ],
 
@@ -459,39 +439,11 @@
       "Name": "LowIoPriority",
       "Actions": [
         {
-          "Name": "SetAttribute",
-          "Params":
-          {
-            "Name": "BfqWeight",
-            "Value": "10",
-            "Optional": "true"
-          }
-        },
-        {
-          "Name": "SetAttribute",
-          "Params":
-          {
-            "Name": "CfqGroupIdle",
-            "Value": "0",
-            "Optional": "true"
-          }
-        },
-        {
-          "Name": "SetAttribute",
-          "Params":
-          {
-            "Name": "CfqWeight",
-            "Value": "200",
-            "Optional": "true"
-          }
-        },
-        {
-          "Name": "SetAttribute",
+          "Name": "JoinCgroup",
           "Params":
           {
-            "Name": "IoPrioClass",
-            "Value": "restrict-to-be",
-            "Optional": "true"
+            "Controller": "blkio",
+            "Path": "background"
           }
         }
       ]
@@ -500,39 +452,11 @@
       "Name": "NormalIoPriority",
       "Actions": [
         {
-          "Name": "SetAttribute",
-          "Params":
-          {
-            "Name": "BfqWeight",
-            "Value": "100",
-            "Optional": "true"
-          }
-        },
-        {
-          "Name": "SetAttribute",
-          "Params":
-          {
-            "Name": "CfqGroupIdle",
-            "Value": "0",
-            "Optional": "true"
-          }
-        },
-        {
-          "Name": "SetAttribute",
-          "Params":
-          {
-            "Name": "CfqWeight",
-            "Value": "1000",
-            "Optional": "true"
-          }
-        },
-        {
-          "Name": "SetAttribute",
+          "Name": "JoinCgroup",
           "Params":
           {
-            "Name": "IoPrioClass",
-            "Value": "restrict-to-be",
-            "Optional": "true"
+            "Controller": "blkio",
+            "Path": ""
           }
         }
       ]
@@ -541,39 +465,11 @@
       "Name": "HighIoPriority",
       "Actions": [
         {
-          "Name": "SetAttribute",
-          "Params":
-          {
-            "Name": "BfqWeight",
-            "Value": "100",
-            "Optional": "true"
-          }
-        },
-        {
-          "Name": "SetAttribute",
-          "Params":
-          {
-            "Name": "CfqGroupIdle",
-            "Value": "0",
-            "Optional": "true"
-          }
-        },
-        {
-          "Name": "SetAttribute",
-          "Params":
-          {
-            "Name": "CfqWeight",
-            "Value": "1000",
-            "Optional": "true"
-          }
-        },
-        {
-          "Name": "SetAttribute",
+          "Name": "JoinCgroup",
           "Params":
           {
-            "Name": "IoPrioClass",
-            "Value": "promote-to-rt",
-            "Optional": "true"
+            "Controller": "blkio",
+            "Path": ""
           }
         }
       ]
@@ -582,39 +478,11 @@
       "Name": "MaxIoPriority",
       "Actions": [
         {
-          "Name": "SetAttribute",
-          "Params":
-          {
-            "Name": "BfqWeight",
-            "Value": "100",
-            "Optional": "true"
-          }
-        },
-        {
-          "Name": "SetAttribute",
-          "Params":
-          {
-            "Name": "CfqGroupIdle",
-            "Value": "0",
-            "Optional": "true"
-          }
-        },
-        {
-          "Name": "SetAttribute",
-          "Params":
-          {
-            "Name": "CfqWeight",
-            "Value": "1000",
-            "Optional": "true"
-          }
-        },
-        {
-          "Name": "SetAttribute",
+          "Name": "JoinCgroup",
           "Params":
           {
-            "Name": "IoPrioClass",
-            "Value": "promote-to-rt",
-            "Optional": "true"
+            "Controller": "blkio",
+            "Path": ""
           }
         }
       ]
diff --git a/rootdir/init.rc b/rootdir/init.rc
index fb6473666..317f80908 100644
--- a/rootdir/init.rc
+++ b/rootdir/init.rc
@@ -219,6 +219,26 @@ on init
     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