From: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Date: Wed, 18 Jun 2014 16:18:31 +0000 (-0700)
Subject: rcu: Don't use NMIs to dump other CPUs' stacks
X-Git-Tag: omap-for-v3.17/fixes-against-rc2~180^2^2~1^2~5
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=bc1dce514e9b29b64df28a533015885862f47814;p=pandora-kernel.git

rcu: Don't use NMIs to dump other CPUs' stacks

Although NMI-based stack dumps are in principle more accurate, they are
also more likely to trigger deadlocks.  This commit therefore replaces
all uses of trigger_all_cpu_backtrace() with rcu_dump_cpu_stacks(), so
that the CPU detecting an RCU CPU stall does the stack dumping.

Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Reviewed-by: Lai Jiangshan <laijs@cn.fujitsu.com>
---

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