From: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Date: Wed, 17 Dec 2014 16:35:02 +0000 (-0800)
Subject: rcu: Add GP-kthread-starvation checks to CPU stall warnings
X-Git-Tag: fixes-v4.0-rc1~182^2^2^5~2
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=fb81a44b88e6173ed0f6e9d6a1afa5305fb63f6e;p=pandora-kernel.git

rcu: Add GP-kthread-starvation checks to CPU stall warnings

This commit adds a message that is printed if the relevant grace-period
kthread has not been able to run for the two seconds preceding the
stall warning.  (The two seconds is double the maximum interval between
successive bouts of quiescent-state forcing.)

Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
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