From mboxrd@z Thu Jan  1 00:00:00 1970
From: "H. Peter Anvin" <hpa@zytor.com>
Subject: Re: linux-next: manual merge of the akpm-current tree with the tip
 tree
Date: Tue, 14 Jan 2014 08:19:08 -0800
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To: Geert Uytterhoeven <geert@linux-m68k.org>, Peter Zijlstra <peterz@infradead.org>
Cc: Stephen Rothwell <sfr@canb.auug.org.au>, Andrew Morton <akpm@linux-foundation.org>, Thomas Gleixner <tglx@linutronix.de>, Ingo Molnar <mingo@elte.hu>, Linux-Next <linux-next@vger.kernel.org>, "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>, Davidlohr Bueso <davidlohr@hp.com>

On 01/14/2014 05:17 AM, Geert Uytterhoeven wrote:
>>
>> This seems terribly broken, the *futex_value*() ops should not need
>> that; they are supposed to access userspace without any of that.
> 
> Why don't they need set_fs(USER_DS)?
> 
> Gr{oetje,eeting}s,
> 
>                         Geert

Because USER_DS is the normal operating state?  It would appear m68k is
the only(?) arch that calls initcalls with get_fs() == KERNEL_DS...

	-hpa