linux-kernel - Re: [patch] x86, bts: fix unlock problem in ds.c

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Message-ID: <20081120214805.GA8475@elte.hu>
Date:	Thu, 20 Nov 2008 22:48:05 +0100
From:	Ingo Molnar <mingo@...e.hu>
To:	eranian@...il.com
Cc:	Markus Metzger <markus.t.metzger@...glemail.com>,
	lkml <linux-kernel@...r.kernel.org>,
	work <markus.t.metzger@...el.com>,
	"H. Peter Anvin" <hpa@...or.com>,
	Thomas Gleixner <tglx@...utronix.de>
Subject: Re: [patch] x86, bts: fix unlock problem in ds.c


* stephane eranian <eranian@...glemail.com> wrote:

> Markus,
> 
> I think this patch is not quite right. You don't want to go out via 
> out_unlock because you're going to call ds_put_context)() when you 
> did not invoke the matching ds_get_context() (hidden in 
> ds_alloc_context). It happens later in the ds_request() function.

i noticed that, and fixed it via:

 10db4ef: x86, PEBS/DS: fix code flow in ds_request()

can you still see problems with it?

	Ingo
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