commit 658ae90f699bd21ec8d79b18a34765ed5993c828
author Tim Murray <timmurray@google.com> Fri Apr 13 10:15:49 2018 -0700
committer Tim Murray <timmurray@google.com> Wed Apr 18 16:42:12 2018 -0700
tree e33a75c65f54348a83925d94626aebe2e2567cd2
parent e58d713e47bc798a546c3d2a2c40e2339527133d

cutils: add restricted cpuset

Bug 78197570
Test: CTS
Exempt-From-Owner-Approval: owner OOO, build cop says it's fine

Change-Id: I6df972950b75a839caa463ae282ad000b959e8ae

rootdir/init.rc

diff --git a/rootdir/init.rc b/rootdir/init.rc
index d75b9ef..5b06fdb 100644
--- a/rootdir/init.rc
+++ b/rootdir/init.rc
@@ -176,6 +176,12 @@
     copy /dev/cpuset/cpus /dev/cpuset/system-background/cpus
     copy /dev/cpuset/mems /dev/cpuset/system-background/mems
 
+    # restricted is for system tasks that are being throttled
+    # due to screen off.
+    mkdir /dev/cpuset/restricted
+    copy /dev/cpuset/cpus /dev/cpuset/restricted/cpus
+    copy /dev/cpuset/mems /dev/cpuset/restricted/mems
+
     mkdir /dev/cpuset/top-app
     copy /dev/cpuset/cpus /dev/cpuset/top-app/cpus
     copy /dev/cpuset/mems /dev/cpuset/top-app/mems
@@ -186,11 +192,13 @@
     chown system system /dev/cpuset/background
     chown system system /dev/cpuset/system-background
     chown system system /dev/cpuset/top-app
+    chown system system /dev/cpuset/restricted
     chown system system /dev/cpuset/tasks
     chown system system /dev/cpuset/foreground/tasks
     chown system system /dev/cpuset/background/tasks
     chown system system /dev/cpuset/system-background/tasks
     chown system system /dev/cpuset/top-app/tasks
+    chown system system /dev/cpuset/restricted/tasks
 
     # set system-background to 0775 so SurfaceFlinger can touch it
     chmod 0775 /dev/cpuset/system-background
@@ -199,6 +207,7 @@
     chmod 0664 /dev/cpuset/background/tasks
     chmod 0664 /dev/cpuset/system-background/tasks
     chmod 0664 /dev/cpuset/top-app/tasks
+    chmod 0664 /dev/cpuset/restricted/tasks
     chmod 0664 /dev/cpuset/tasks