linux-kernel - Re: [PATCH v1 06/47] mtrr: add __arch_phys_wc

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Message-ID: <CAErSpo5mBtLuMcRJBYuxXqGBJRkqzQDQiimVgeLk2k+ztyCCCw@mail.gmail.com>
Date:	Thu, 2 Apr 2015 17:35:30 -0500
From:	Bjorn Helgaas <bhelgaas@...gle.com>
To:	"Luis R. Rodriguez" <mcgrof@...e.com>
Cc:	"Luis R. Rodriguez" <mcgrof@...not-panic.com>,
	Andy Lutomirski <luto@...capital.net>,
	Ingo Molnar <mingo@...hat.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	"H. Peter Anvin" <hpa@...or.com>, Juergen Gross <jgross@...e.com>,
	Jan Beulich <JBeulich@...e.com>, Borislav Petkov <bp@...e.de>,
	Dave Airlie <airlied@...hat.com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	linux-fbdev <linux-fbdev@...r.kernel.org>,
	"x86@...nel.org" <x86@...nel.org>,
	"xen-devel@...ts.xenproject.org" <xen-devel@...ts.xenproject.org>,
	Ingo Molnar <mingo@...e.hu>,
	Daniel Vetter <daniel.vetter@...ll.ch>,
	Antonino Daplas <adaplas@...il.com>,
	Jean-Christophe Plagniol-Villard <plagnioj@...osoft.com>,
	Tomi Valkeinen <tomi.valkeinen@...com>
Subject: Re: [PATCH v1 06/47] mtrr: add __arch_phys_wc_add()

[-cc Venkatesh, Suresh]

On Thu, Apr 2, 2015 at 3:55 PM, Luis R. Rodriguez <mcgrof@...e.com> wrote:
> On Thu, Apr 02, 2015 at 03:21:22PM -0500, Bjorn Helgaas wrote:
>> On Fri, Mar 20, 2015 at 6:17 PM, Luis R. Rodriguez
>> <mcgrof@...not-panic.com> wrote:
>> > From: "Luis R. Rodriguez" <mcgrof@...e.com>

>> > This is *only* a transitive API -- and as such no new
>> > drivers are ever expected to use this.
>>
>> "transient"?  Do you mean you intend to remove this API in the near future?
>
> That's correct, the problem is that in order to use PAT cleanly we'd need to
> change these drivers ...

I was just trying to ask whether you intended to write "transient"
instead of "transitive."  But I'm not doing a very good job :)

Bjorn
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