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Re: [PATCH 1/10] Add generic helpers for arch IPI function calls

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From: Jens Axboe <jens.axboe@...>
To: Paul E. McKenney <paulmck@...>
Cc: Nick Piggin <npiggin@...>, Peter Zijlstra <peterz@...>, <linux-kernel@...>, <linux-arch@...>, <jeremy@...>, <mingo@...>
Subject: Re: [PATCH 1/10] Add generic helpers for arch IPI function calls
Date: Wednesday, May 7, 2008 - 4:42 pm

On Mon, May 05 2008, Paul E. McKenney wrote:

Sorry for the delayed response here. The below looks pretty good to me,
though it'll require a few modifications to fixup smp_call_function()
from irq disabled context.

But that's doable, though I have to do a grep over the kernel to check
everything (I remember CPU send_stop being one such path). Not a huge
fan of such an interface, but hey...

Is everyone OK with going this route, initially at least? It's the
lesser of all evils, I think.


This part puzzled me, why? We default to 'n' and let converted archs
opt-in, so I don't get this part of your patch...

-- 
Jens Axboe

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Messages in current thread:
[PATCH 0/10] Add generic helpers for arch IPI function calls..., Jens Axboe, (Tue Apr 29, 3:26 am)
[PATCH 1/10] Add generic helpers for arch IPI function calls, Jens Axboe, (Tue Apr 29, 3:26 am)
Re: [PATCH 1/10] Add generic helpers for arch IPI function c..., Jeremy Fitzhardinge, (Wed Apr 30, 6:56 pm)
Re: [PATCH 1/10] Add generic helpers for arch IPI function c..., Paul E. McKenney, (Tue Apr 29, 9:59 am)
Re: [PATCH 1/10] Add generic helpers for arch IPI function c..., Paul E. McKenney, (Wed Apr 30, 7:29 am)
Re: [PATCH 1/10] Add generic helpers for arch IPI function c..., Jens Axboe, (Wed Apr 30, 7:34 am)
Re: [PATCH 1/10] Add generic helpers for arch IPI function c..., Paul E. McKenney, (Wed Apr 30, 8:17 am)
Re: [PATCH 1/10] Add generic helpers for arch IPI function c..., Jens Axboe, (Wed Apr 30, 8:37 am)
Re: [PATCH 1/10] Add generic helpers for arch IPI function c..., Paul E. McKenney, (Thu May 1, 10:02 pm)
Re: [PATCH 1/10] Add generic helpers for arch IPI function c..., Nick Piggin, (Thu May 1, 10:12 pm)
Re: [PATCH 1/10] Add generic helpers for arch IPI function c..., Paul E. McKenney, (Fri May 2, 8:29 am)
Re: [PATCH 1/10] Add generic helpers for arch IPI function c..., Keith Owens, (Fri May 2, 8:50 am)
Re: [PATCH 1/10] Add generic helpers for arch IPI function c..., Paul E. McKenney, (Fri May 2, 9:09 am)
Re: [PATCH 1/10] Add generic helpers for arch IPI function c..., Paul E. McKenney, (Fri May 2, 8:42 am)
Re: [PATCH 1/10] Add generic helpers for arch IPI function c..., Peter Zijlstra, (Fri May 2, 8:59 am)
Re: [PATCH 1/10] Add generic helpers for arch IPI function c..., Nick Piggin, (Sat May 3, 1:49 am)
Re: [PATCH 1/10] Add generic helpers for arch IPI function c..., Paul E. McKenney, (Sat May 3, 2:11 pm)
Re: [PATCH 1/10] Add generic helpers for arch IPI function c..., Nick Piggin, (Mon May 5, 12:15 am)
Re: [PATCH 1/10] Add generic helpers for arch IPI function c..., Paul E. McKenney, (Mon May 5, 1:43 pm)
Re: [PATCH 1/10] Add generic helpers for arch IPI function c..., Jens Axboe, (Wed May 7, 4:42 pm)
Re: [PATCH 1/10] Add generic helpers for arch IPI function c..., Paul E. McKenney, (Thu May 8, 12:36 am)
Re: [PATCH 1/10] Add generic helpers for arch IPI function c..., Paul E. McKenney, (Sun May 4, 6:04 pm)
Re: [PATCH 1/10] Add generic helpers for arch IPI function c..., Paul E. McKenney, (Fri May 2, 10:21 am)
Re: [PATCH 1/10] Add generic helpers for arch IPI function c..., Paul E. McKenney, (Fri May 2, 10:30 pm)
Re: [PATCH 1/10] Add generic helpers for arch IPI function c..., Paul E. McKenney, (Wed Apr 30, 10:44 pm)
[PATCH 7/10] m32r: convert to generic helpers for IPI functi..., Jens Axboe, (Tue Apr 29, 3:26 am)
[PATCH 6/10] arm: convert to generic helpers for IPI functio..., Jens Axboe, (Tue Apr 29, 3:26 am)
[PATCH 5/10] alpha: convert to generic helpers for IPI funct..., Jens Axboe, (Tue Apr 29, 3:26 am)
[PATCH 2/10] x86: convert to generic helpers for IPI functio..., Jens Axboe, (Tue Apr 29, 3:26 am)
Re: [PATCH 2/10] x86: convert to generic helpers for IPI fun..., Jeremy Fitzhardinge, (Wed Apr 30, 5:39 pm)
Re: [PATCH 2/10] x86: convert to generic helpers for IPI fun..., Jeremy Fitzhardinge, (Tue Apr 29, 4:35 pm)
Re: [PATCH 2/10] x86: convert to generic helpers for IPI fun..., Jens Axboe, (Wed Apr 30, 7:35 am)
Re: [PATCH 2/10] x86: convert to generic helpers for IPI fun..., Paul E. McKenney, (Wed Apr 30, 8:20 am)
Re: [PATCH 2/10] x86: convert to generic helpers for IPI fun..., Jens Axboe, (Wed Apr 30, 8:31 am)
Re: [PATCH 2/10] x86: convert to generic helpers for IPI fun..., Jeremy Fitzhardinge, (Wed Apr 30, 10:51 am)
[PATCH 4/10] ia64: convert to generic helpers for IPI functi..., Jens Axboe, (Tue Apr 29, 3:26 am)
[PATCH 9/10] parisc: convert to generic helpers for IPI func..., Jens Axboe, (Tue Apr 29, 3:26 am)
[PATCH 3/10] powerpc: convert to generic helpers for IPI fun..., Jens Axboe, (Tue Apr 29, 3:26 am)
[PATCH 8/10] mips: convert to generic helpers for IPI functi..., Jens Axboe, (Tue Apr 29, 3:26 am)
[PATCH 10/10] sh: convert to generic helpers for IPI functio..., Jens Axboe, (Tue Apr 29, 3:26 am)