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add property to adjust extra_free_kbytes kernel vm tunable

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ActivityManager can't directly write to extra_free_kbytes because
/proc/sys rejects all chown and chmod syscalls.  Proxy the writes
through init by using the sys.sysctl.extra_free_kbytes property.

Bug: 10024467
Change-Id: I441e00478421254355fcafb252bc878166483d4c
This commit is contained in:
Colin Cross 2013-07-25 10:34:30 -07:00
parent 44f5c15724
commit 57fdb5cfd2
1 changed files with 4 additions and 0 deletions
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4
rootdir/init.rc
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@ -402,6 +402,10 @@ on property:vold.decrypt=trigger_shutdown_framework
on property:sys.powerctl=*
powerctl ${sys.powerctl}
# system server cannot write to /proc/sys files, so proxy it through init
on property:sys.sysctl.extra_free_kbytes=*
write /proc/sys/vm/extra_free_kbytes ${sys.sysctl.extra_free_kbytes}
## Daemon processes to be run by init.
##
service ueventd /sbin/ueventd