linux-kernel - Re: [patch 10/21] Xen-paravirt: add hooks to intercept mm creation and destruction

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Message-ID: <45DDFB4D.9050809@goop.org>
Date:	Thu, 22 Feb 2007 12:21:33 -0800
From:	Jeremy Fitzhardinge <jeremy@...p.org>
To:	Pavel Machek <pavel@....cz>
CC:	Andi Kleen <ak@....de>, Andrew Morton <akpm@...ux-foundation.org>,
	linux-kernel@...r.kernel.org, virtualization@...ts.osdl.org,
	xen-devel@...ts.xensource.com, Chris Wright <chrisw@...s-sol.org>,
	Zachary Amsden <zach@...are.com>
Subject: Re: [patch 10/21] Xen-paravirt: add hooks to intercept mm creation
 and destruction

Pavel Machek wrote:
> Hi!
>
>   
>> @@ -126,6 +126,12 @@ struct paravirt_ops
>>  	void (*io_delay)(void);
>>  	void (*const_udelay)(unsigned long loops);
>>  
>> +	void (fastcall *activate_mm)(struct mm_struct *prev,
>> +				     struct mm_struct *next);
>> +	void (fastcall *dup_mmap)(struct mm_struct *oldmm, 
>> +				  struct mm_struct *mm);
>> +	void (fastcall *exit_mmap)(struct mm_struct *mm);
>> +
>>     
>
> Why the fastcall stuff?  Why is io_delay different from activate_mm in
> this regard?
>   

That's crud; I forgot to remove it.  Everything is effectively fastcall
now that -mregparm=3 is always on.

    J
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