Activity Manager now takes care of setting OOM values.

All init needs to do is make these files writeable so that the
activity manager can set them.

Change-Id: Ieea43208fadc01504d813be379aecbafcadf0d34

2 files changed, 8 insertions, 64 deletions

diff --git a/rootdir/init.lowmem.rc b/rootdir/init.lowmem.rc
deleted file mode 100644
index 7c08054..0000000
--- a/rootdir/init.lowmem.rc
+++ /dev/null
@@ -1,19 +0,0 @@
-# Adjustments to the out-of-memory killer, for devices that are
-# tight on memory.  These should not be used if not needed, as they
-# can result in more paging.
-
-on early-boot
-
-    setprop ro.FOREGROUND_APP_MEM 1536
-    setprop ro.VISIBLE_APP_MEM 2048
-    setprop ro.PERCEPTIBLE_APP_MEM 2048
-    setprop ro.HEAVY_WEIGHT_APP_MEM 2048
-    setprop ro.SECONDARY_SERVER_MEM 4096
-    setprop ro.BACKUP_APP_MEM 4096
-    setprop ro.HOME_APP_MEM 4096
-    setprop ro.HIDDEN_APP_MEM 5120
-    setprop ro.EMPTY_APP_MEM 6144
-
-on boot
-
-    write /sys/module/lowmemorykiller/parameters/minfree 1536,2048,3072,4096,5120,6144
diff --git a/rootdir/init.rc b/rootdir/init.rc
index f843824..d0f82b9 100644
--- a/rootdir/init.rc
+++ b/rootdir/init.rc
@@ -190,54 +190,17 @@ on boot
 # set RLIMIT_NICE to allow priorities from 19 to -20
     setrlimit 13 40 40
 
-# Define the oom_adj values for the classes of processes that can be
-# killed by the kernel.  These are used in ActivityManagerService.
-    setprop ro.FOREGROUND_APP_ADJ 0
-    setprop ro.VISIBLE_APP_ADJ 1
-    setprop ro.PERCEPTIBLE_APP_ADJ 2
-    setprop ro.HEAVY_WEIGHT_APP_ADJ 3
-    setprop ro.SECONDARY_SERVER_ADJ 4
-    setprop ro.BACKUP_APP_ADJ 5
-    setprop ro.HOME_APP_ADJ 6
-    setprop ro.HIDDEN_APP_MIN_ADJ 7
-    setprop ro.EMPTY_APP_ADJ 15
-
-# Define the memory thresholds at which the above process classes will
-# be killed.  These numbers are in pages (4k).
-    # These are currently tuned for tablets with approx 1GB RAM.
-    setprop ro.FOREGROUND_APP_MEM 8192
-    setprop ro.VISIBLE_APP_MEM 10240
-    setprop ro.PERCEPTIBLE_APP_MEM 12288
-    setprop ro.HEAVY_WEIGHT_APP_MEM 12288
-    setprop ro.SECONDARY_SERVER_MEM 14336
-    setprop ro.BACKUP_APP_MEM 14336
-    setprop ro.HOME_APP_MEM 14336
-    setprop ro.HIDDEN_APP_MEM 16384
-    setprop ro.EMPTY_APP_MEM 20480
-
-    # Old values for phones.  Should probably be adjusted up for the next
-    # phone version.
-    #setprop ro.FOREGROUND_APP_MEM 2048
-    #setprop ro.VISIBLE_APP_MEM 3072
-    #setprop ro.PERCEPTIBLE_APP_MEM 4096
-    #setprop ro.HEAVY_WEIGHT_APP_MEM 4096
-    #setprop ro.SECONDARY_SERVER_MEM 6144
-    #setprop ro.BACKUP_APP_MEM 6144
-    #setprop ro.HOME_APP_MEM 6144
-    #setprop ro.HIDDEN_APP_MEM 7168
-    #setprop ro.EMPTY_APP_MEM 8192
-
-# Write value must be consistent with the above properties.
-# Note that the driver only supports 6 slots, so we have combined some of
-# the classes into the same memory level; the associated processes of higher
-# classes will still be killed first.
-    write /sys/module/lowmemorykiller/parameters/adj 0,1,2,4,7,15
-
+# Memory management.  Basic kernel parameters, and allow the high
+# level system server to be able to adjust the kernel OOM driver
+# paramters to match how it is managing things.
     write /proc/sys/vm/overcommit_memory 1
     write /proc/sys/vm/min_free_order_shift 4
-    write /sys/module/lowmemorykiller/parameters/minfree 8192,10240,12288,14336,16384,20480
+    chown root system /sys/module/lowmemorykiller/parameters/adj
+    chmod 0664 /sys/module/lowmemorykiller/parameters/adj
+    chown root system /sys/module/lowmemorykiller/parameters/minfree
+    chmod 0664 /sys/module/lowmemorykiller/parameters/minfree
 
-    # Set init its forked children's oom_adj.
+    # Set init and its forked children's oom_adj.
     write /proc/1/oom_adj -16
 
     # Tweak background writeout