linux-kernel - Re: [PATCH 01/29] tsx: Add generic noop macros for RTM intrinsics

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Date:	Mon, 25 Mar 2013 01:19:28 -0700
From:	Andi Kleen <ak@...ux.intel.com>
To:	Michael Neuling <mikey@...ling.org>
Cc:	Andi Kleen <andi@...stfloor.org>, linux-kernel@...r.kernel.org,
	torvalds@...ux-foundation.org, akpm@...ux-foundation.org,
	x86@...nel.org
Subject: Re: [PATCH 01/29] tsx: Add generic noop macros for RTM intrinsics

> RTM == restricted transactional memory.  I don't understand why it's
> "restricted" and why any other architecture else would call it that and

It's restricted as in there is no guarantee that a transaction ever succeeds
and always needs a fallback path. My understanding is that this is true for 
PPC too, but not necessarily zSeries.

> hence why Linux should call it that?
> 
> Can we just call it TM for transactional memory?  Each arch can then
> have their own implementation and call it what they want.

I don't think the name will stop them to do anything.

If people feel strongly about it can change it, but it's not
actually making a real difference.

-Andi
-- 
ak@...ux.intel.com -- Speaking for myself only
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