linux-kernel - Re: i386 PDA patches use of %gs

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Message-ID: <4506665D.2090001@goop.org>
Date:	Tue, 12 Sep 2006 00:48:45 -0700
From:	Jeremy Fitzhardinge <jeremy@...p.org>
To:	Arjan van de Ven <arjan@...radead.org>
CC:	akpm@...l.org, ak@...e.de, mingo@...e.hu,
	linux-kernel@...r.kernel.org
Subject: Re: i386 PDA patches use of %gs

Arjan van de Ven wrote:
> Jeremy, is there a reason you're specifically using %gs and not %fs? If
> not, would you mind a switch to using %fs instead?
>   

The main reason for using %gs was to take advantage of gcc's TLS 
support.  I intend to measure the cost of gs vs fs, and if there's a 
significant difference I'll switch.

    J
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