linux-kernel - Re: x86: cleanup - rename VM_MASK to X86_VM

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Message-ID: <20080423182615.GA7713@cvg>
Date:	Wed, 23 Apr 2008 22:26:15 +0400
From:	Cyrill Gorcunov <gorcunov@...il.com>
To:	"H. Peter Anvin" <hpa@...or.com>
Cc:	David Woodhouse <dwmw2@...radead.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Ingo Molnar <mingo@...e.hu>
Subject: Re: x86: cleanup - rename VM_MASK to X86_VM_MASK

[H. Peter Anvin - Wed, Apr 23, 2008 at 11:12:33AM -0700]
> Cyrill Gorcunov wrote:
>> Hi David,
>> actually, this CONFIG_VM86 was there even before the renaming was done.
>> The main questions (imo) - is there any user space application who uses
>> these flags? If they are - then even the idea of this patch was a bit 
>> bogus,
>> and I should *not* remove all these VM86 specific flags but better define 
>> them
>> as aliases on flags from processor-flags.h.
>
> Hard to know.  VM86 is only used by a handful of applications (DOSEMU, 
> X.org, others?) but it's hard to know what exactly they are.
>
> The fact that noone hollered when that CONFIG_VM86 went in is probably a 
> good hint that they don't matter, but it's hard to say for sure.
>
> 	-hpa
>

Actually, being google a bit I found that most of emulators
redefine their own equvalence of these flags. So I think
we could remain all as is. But if we wanna be sure I could
make a patch like this

...
#define CF_MASK X86_EFLAGS_CF
...

		- Cyrill -

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