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List:       linux-kernel
Subject:    Re: [PATCH] parisc: unbreak automounter support on 64-bit kernel with 32-bit userspace
From:       "H. Peter Anvin" <hpa () zytor ! com>
Date:       2013-01-31 23:13:48
Message-ID: 510AFAAC.8020609 () zytor ! com
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On 01/31/2013 02:10 PM, Rolf Eike Beer wrote:
> H. Peter Anvin wrote:
>> On 01/31/2013 01:42 PM, James Bottomley wrote:
>>> On Thu, 2013-01-31 at 13:29 -0800, H. Peter Anvin wrote:
>>>> On 01/31/2013 12:26 PM, James Bottomley wrote:
>>>>> [adding autofs list and maintainer for their perusal and
>>>>> ack, although this is an obvious fix to me
>>>>> 
>>>>> James]
>>>> 
>>>> The #if list probably should be inverted, and only specific
>>>> platforms should have unsigned long...
>>> 
>>> The whitelist is 64 bit only platforms, like ia64, isn't it?
>>> So yes, they're far less numerous.
>> 
>> Correct.  It is basically the 64-bit platforms without any
>> 32-bit userspace, like Alpha and IA64.
> 
> Arm64? Should this be a CONFIG_ARCH_CAN_HAVE_32BIT_USERSPACE that
> would cover this? And may e.g. be used to remove compat_ioctl on
> those archs, too?
> 

compat_ioctl should be CONFIG_COMPAT.

	-hpa


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