From 4322f2d74f625a0e8275ea1d2fa0d78bfc5c3029 Mon Sep 17 00:00:00 2001
From: San Mehat <san@google.com>
Date: Mon, 29 Jun 2009 08:47:43 -0700
Subject: [PATCH] init: Enable sched_yield() compatability mode on boot.

    In CFS, the (somewhat undefined) behavior of sched_yield() changed.

    See: http://kerneltrap.org/Linux/CFS_and_sched_yield

    This change enables 'compat' mode for sched_yield()

Signed-off-by: San Mehat <san@google.com>
---
 rootdir/init.rc | 1 +
 1 file changed, 1 insertion(+)

diff --git a/rootdir/init.rc b/rootdir/init.rc
index 3fe4c258b..23ee1c8a5 100644
--- a/rootdir/init.rc
+++ b/rootdir/init.rc
@@ -33,6 +33,7 @@ loglevel 3
     write /proc/cpu/alignment 4
     write /proc/sys/kernel/sched_latency_ns 10000000
     write /proc/sys/kernel/sched_wakeup_granularity_ns 2000000
+    write /proc/sys/kernel/sched_compat_yield 1
 
 # Create cgroup mount points for process groups
     mkdir /dev/cpuctl