Commit: b42da457425cf0941d6ea68916ba48fc0f7516ba - system-core (git)

system/core

Commit MetaInfo

• Revision: b42da457425cf0941d6ea68916ba48fc0f7516ba (tree)
• Zeit: 2018-06-13 17:15:27
• Autor: Wei Wang <wvw@goog...>
• Commiter: Chih-Wei Huang

Log Message

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

Ändern Zusammenfassung

• modified: rootdir/init.rc

Diff

--- a/rootdir/init.rc
+++ b/rootdir/init.rc
@@ -158,25 +158,25 @@ on init
     # 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