linux-kernel - Using random in interrupts for RT

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Message-ID: <1344954649.6724.13.camel@gandalf.stny.rr.com>
Date:	Tue, 14 Aug 2012 10:30:49 -0400
From:	Steven Rostedt <rostedt@...dmis.org>
To:	Thomas Gleixner <tglx@...utronix.de>
Cc:	LKML <linux-kernel@...r.kernel.org>,
	Ben Hutchings <ben@...adent.org.uk>,
	RT <linux-rt-users@...r.kernel.org>
Subject: Using random in interrupts for RT

Thomas,

Ben Hutchings asked me if we still need "genirq: Disable random call on
preempt-rt" for -rt? With commit 902c098a366 "random: use lockless
techniques in the interrupt path" there is no more locks used. But does
it still produce high latencies?

-- Steve


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