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From: Andi Kleen <ak@muc.de>
To: virtualization@lists.osdl.org
Cc: Andrew Morton <akpm@osdl.org>, Chris Wright <chrisw@sous-sol.org>,
	Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH 3/4] x86 paravirt_ops: implementation of paravirt_ops
Date: Mon, 7 Aug 2006 08:20:09 +0200	[thread overview]
Message-ID: <200608070820.09059.ak@muc.de> (raw)
In-Reply-To: <1154931222.7642.21.camel@localhost.localdomain>


> > I think I would prefer to patch always. Is there a particular
> > reason you can't do that?
> 
> We could patch all the indirect calls into direct calls, but I don't
> think it's worth bothering: most simply don't matter.

I still think it would be better to patch always.

> Each backend wants a different patch, so alternative() doesn't cut it.
> We could look at generalizing alternative() I guess, but it works fine
> so I didn't want to touch it.

You could at least use a common function (with the replacement passed
in as argument) for lock prefixes and your stuff

-Andi

WARNING: multiple messages have this Message-ID (diff)
From: Andi Kleen <ak@muc.de>
To: virtualization@lists.osdl.org
Cc: Rusty Russell <rusty@rustcorp.com.au>,
	Andrew Morton <akpm@osdl.org>,
	Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
	Chris Wright <chrisw@sous-sol.org>
Subject: Re: [PATCH 3/4] x86 paravirt_ops: implementation of paravirt_ops
Date: Mon, 7 Aug 2006 08:20:09 +0200	[thread overview]
Message-ID: <200608070820.09059.ak@muc.de> (raw)
In-Reply-To: <1154931222.7642.21.camel@localhost.localdomain>


> > I think I would prefer to patch always. Is there a particular
> > reason you can't do that?
> 
> We could patch all the indirect calls into direct calls, but I don't
> think it's worth bothering: most simply don't matter.

I still think it would be better to patch always.

> Each backend wants a different patch, so alternative() doesn't cut it.
> We could look at generalizing alternative() I guess, but it works fine
> so I didn't want to touch it.

You could at least use a common function (with the replacement passed
in as argument) for lock prefixes and your stuff

-Andi

  reply	other threads:[~2006-08-07  6:20 UTC|newest]

Thread overview: 47+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2006-08-07  4:43 [PATCH 1/4] x86 paravirt_ops: create no_paravirt.h for native ops Rusty Russell
2006-08-07  4:45 ` [PATCH 2/4] x86 paravirt_ops: paravirt_desc.h for native descriptor ops Rusty Russell
2006-08-07  4:45   ` Rusty Russell
2006-08-07  4:47   ` [PATCH 3/4] x86 paravirt_ops: implementation of paravirt_ops Rusty Russell
2006-08-07  4:47     ` Rusty Russell
2006-08-07  4:48     ` [PATCH 4/4] x86 paravirt_ops: binary patching infrastructure Rusty Russell
2006-08-07  4:48       ` Rusty Russell
2006-08-07  5:14       ` Rusty Russell
2006-08-07  5:38       ` Andi Kleen
2006-08-07  5:56         ` Jeremy Fitzhardinge
2006-08-07  5:56           ` Jeremy Fitzhardinge
2006-08-07  5:39     ` [PATCH 3/4] x86 paravirt_ops: implementation of paravirt_ops Andi Kleen
2006-08-07  5:56       ` Jeremy Fitzhardinge
2006-08-07  5:56         ` Jeremy Fitzhardinge
2006-08-07  6:13       ` Rusty Russell
2006-08-07  6:20         ` Andi Kleen [this message]
2006-08-07  6:20           ` Andi Kleen
2006-08-07  7:27           ` Rusty Russell
2006-08-07  5:40   ` [PATCH 2/4] x86 paravirt_ops: paravirt_desc.h for native descriptor ops Andi Kleen
2006-08-07  5:40     ` Andi Kleen
2006-08-07  7:50     ` Rusty Russell
2006-08-07  7:50       ` Rusty Russell
2006-08-07  8:53       ` Andi Kleen
2006-08-07 17:19         ` Dave Jones
2006-08-07 17:19           ` Dave Jones
2006-08-07  5:22 ` [PATCH 1/4] x86 paravirt_ops: create no_paravirt.h for native ops Jeremy Fitzhardinge
2006-08-07  5:30 ` Andi Kleen
2006-08-07  5:43   ` Jeremy Fitzhardinge
2006-08-07  6:02     ` Andi Kleen
2006-08-07  6:23       ` Jeremy Fitzhardinge
2006-08-07  6:03     ` Rusty Russell
2006-08-07  6:16       ` Andi Kleen
2006-08-07  6:04   ` Rusty Russell
2006-08-07  6:04     ` Rusty Russell
2006-08-07  6:17     ` Andi Kleen
2006-08-07  6:17       ` Andi Kleen
2006-08-07  6:27       ` Muli Ben-Yehuda
2006-08-07  6:27         ` Muli Ben-Yehuda
2006-08-07  7:34         ` Jan Engelhardt
2006-08-07  8:40           ` Muli Ben-Yehuda
2006-08-07  8:40             ` Muli Ben-Yehuda
2006-08-07 17:54             ` Jan Engelhardt
2006-08-07 17:54               ` Jan Engelhardt
2006-08-07 20:51     ` Zachary Amsden
2006-08-07 20:51       ` Zachary Amsden
2006-08-08  1:59       ` Andi Kleen
2006-08-08  1:59         ` Andi Kleen

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