more perf_counter stuff [LWN.net]

From:		Peter Zijlstra <a.p.zijlstra@chello.nl>
To:		Ingo Molnar <mingo@elte.hu>
Subject:		[PATCH 0/6] more perf_counter stuff
Date:		Thu, 02 Apr 2009 11:11:58 +0200
Message-ID:		<20090402091158.291810516@chello.nl>
Cc:		Paul Mackerras <paulus@samba.org>, Corey Ashford <cjashfor@linux.vnet.ibm.com>, linux-kernel@vger.kernel.org, Peter Zijlstra <a.p.zijlstra@chello.nl>
Archive-link:		Article, Thread

This patch set implements some features requested by Paul/Corey.
The main one being the singleshot thing, which is still RFC due to
being incomplete.

It really needs a mechanism to run bits in a regular context ASAP
after the event context. My faviourite is a self-IPI, because one can
issue it from NMI context, or IRQ-disabled rq->lock context and have
it work as expected.

I'll look at doing a x86 self-IPI.


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