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Message-ID: <4F84F788.3020702@zytor.com>
Date: Tue, 10 Apr 2012 20:16:24 -0700
From: "H. Peter Anvin" <hpa@...or.com>
To: Will Drewry <wad@...omium.org>
CC: linux-kernel@...r.kernel.org, linux-arch@...r.kernel.org,
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Subject: Re: [PATCH v15 04/13] arch/x86: add syscall_get_arch to syscall.h
On 04/10/2012 08:13 PM, Will Drewry wrote:
>
> Now that I've seen is_ia32_task(), it appears to be exactly the same as above:
> (1) If we're x86_32, it's ia32
> (2) If we're x86_64, ia32 == !!(status & TS_COMPAT)
> (3) Otherwise, it's x86_64, including x32
>
> Am I missing something? Should is_ia32_task(void) take a task_struct?
> Right now, I don't see any reason to change the code, as posted, but
> maybe I am mis-reading?
>
is_compat_task() is true for x32, is_ia32_task() is false.
-hpa
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