linux-kernel - Re: [PATCH 0/8] Update kernel uabi header files for x32

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Message-ID: <52BF03D8.7000309@zytor.com>
Date:	Sat, 28 Dec 2013 09:01:12 -0800
From:	"H. Peter Anvin" <hpa@...or.com>
To:	Christoph Hellwig <hch@...radead.org>,
	"H.J. Lu" <hjl.tools@...il.com>
CC:	LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 0/8] Update kernel uabi header files for x32

On 12/28/2013 08:33 AM, Christoph Hellwig wrote:
> 
> Independent on how this fixes things, how does the kernel_long_t name
> here make any sense?
> 
> On x86-64 "kernel" long always is 64 bits wide.  The userspace ABI long
> might be 32 or 64bits wide.
> 
> Currently kernel_long_t has almost no uses, so it might be a good time
> to fix the name, define the rules for it, and last but not least
> properly document the intent for thse types.
> 

The definition is "an integer type the same width as 'long' for the
native kernel type for the ABI".  If you have any suggestions for a
better name, or for that matter, a better alternative, that would be
genuinely appreciated...

	-hpa

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