From: Ingo Molnar <mingo@elte.hu>
Date: Wed, 25 Jan 2006 18:50:12 +0000 (+0100)
Subject: [PATCH] rcu_torture_lock deadlock fix
X-Git-Tag: v2.6.16-rc2~246
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=adac1665234dd966990af846eccd20b7f4923279;p=pandora-kernel.git

[PATCH] rcu_torture_lock deadlock fix

rcu_torture_lock is used in a softirq-unsafe manner, but it is also
taken by rcu_torture_cb(), which may execute in softirq-context,
resulting in potential deadlocks.

The fix is to acquire rcu_torture_lock in a softirq-safe manner.  With
this fix applied, the rcu-torture code passes validation.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Acked-by: Paul E. McKenney <paulmck@us.ibm.com>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
---

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