linux-kernel - Re: [PATCH 3/3] IRQ: Maintain regs pointer globally rather than passing to IRQ handlers

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Date:	Mon, 2 Oct 2006 16:52:46 -0700
From:	Greg KH <greg@...ah.com>
To:	Dmitry Torokhov <dmitry.torokhov@...il.com>
Cc:	Andrew Morton <akpm@...l.org>, David Howells <dhowells@...hat.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	Ingo Molnar <mingo@...e.hu>, torvalds@...l.org,
	linux-kernel@...r.kernel.org, linux-arch@...r.kernel.org,
	David Brownell <david-b@...bell.net>,
	Alan Stern <stern@...land.harvard.edu>
Subject: Re: [PATCH 3/3] IRQ: Maintain regs pointer globally rather than passing to IRQ handlers

On Mon, Oct 02, 2006 at 04:43:38PM -0400, Dmitry Torokhov wrote:
> On 10/2/06, Andrew Morton <akpm@...l.org> wrote:
> >On Mon, 02 Oct 2006 17:21:09 +0100
> >David Howells <dhowells@...hat.com> wrote:
> >
> >> Maintain a per-CPU global "struct pt_regs *" variable which can be used 
> >instead
> >> of passing regs around manually through all ~1800 interrupt handlers in 
> >the
> >> Linux kernel.
> >>
> 
> Nice! I was wanting to do that for a long time...

Yeah!  Finally get rid of that from every single fricken USB urb
callback.  I have been wanting that gone for a very long time.

> >I think the change is good.  But I don't want to maintain this whopper
> >out-of-tree for two months!  If we want to do this, we should just smash it
> >in and grit our teeth.
> 
> Yes, lets drop it in while we still not reached rc1.

I don't care when it goes it, I have no objection to it at all.

David, thanks a lot for doing this.

greg k-h
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