init.rc: set initial cpuset to all cores
Starting zygote early requires cpuset to be initialized to all cores for
foreground cpuset. Change to expolit all cores by default at boot and
let device manufacturers override to proper values in device specific
init script.
Bug: 36576280
Test: marlin boot fast and checked cpuset during early boot
Change-Id: I2c1ce0630e58a7b04d1a453c6740d3f0bce9de9f
diff --git a/rootdir/init.rc b/rootdir/init.rc
index 17dade4..6675e94 100644
--- a/rootdir/init.rc
+++ b/rootdir/init.rc
@@ -157,25 +157,25 @@
# this ensures that the cpusets are present and usable, but the device's
# init.rc must actually set the correct cpus
mkdir /dev/cpuset/foreground
- write /dev/cpuset/foreground/cpus 0
- write /dev/cpuset/foreground/mems 0
+ copy /dev/cpuset/cpus /dev/cpuset/foreground/cpus
+ copy /dev/cpuset/mems /dev/cpuset/foreground/mems
mkdir /dev/cpuset/foreground/boost
- write /dev/cpuset/foreground/boost/cpus 0
- write /dev/cpuset/foreground/boost/mems 0
+ copy /dev/cpuset/cpus /dev/cpuset/foreground/boost/cpus
+ copy /dev/cpuset/mems /dev/cpuset/foreground/boost/mems
mkdir /dev/cpuset/background
- write /dev/cpuset/background/cpus 0
- write /dev/cpuset/background/mems 0
+ copy /dev/cpuset/cpus /dev/cpuset/background/cpus
+ copy /dev/cpuset/mems /dev/cpuset/background/mems
# system-background is for system tasks that should only run on
# little cores, not on bigs
# to be used only by init, so don't change system-bg permissions
mkdir /dev/cpuset/system-background
- write /dev/cpuset/system-background/cpus 0
- write /dev/cpuset/system-background/mems 0
+ copy /dev/cpuset/cpus /dev/cpuset/system-background/cpus
+ copy /dev/cpuset/mems /dev/cpuset/system-background/mems
mkdir /dev/cpuset/top-app
- write /dev/cpuset/top-app/cpus 0
- write /dev/cpuset/top-app/mems 0
+ copy /dev/cpuset/cpus /dev/cpuset/top-app/cpus
+ copy /dev/cpuset/mems /dev/cpuset/top-app/mems
# change permissions for all cpusets we'll touch at runtime
chown system system /dev/cpuset