From mboxrd@z Thu Jan  1 00:00:00 1970
From: Sebastian Andrzej Siewior <sebastian@breakpoint.cc>
Subject: Re: [RFC PATCH v3 19/19] smp, x86: kill SMP single function call
	interrupt
Date: Wed, 11 Dec 2013 23:10:11 +0100
Message-ID: <20131211221011.GA26423@breakpoint.cc>
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To: Jiang Liu <liuj97@gmail.com>
Cc: Jeremy Fitzhardinge <jeremy@goop.org>, Gleb Natapov <gleb@redhat.com>, Peter Zijlstra <peterz@infradead.org>, Wang YanQing <udknight@gmail.com>, "H. Peter Anvin" <hpa@zytor.com>, Thomas Gleixner <tglx@linutronix.de>, linux-arch@vger.kernel.org, Andi Kleen <ak@linux.intel.com>, Joerg Roedel <joro@8bytes.org>, x86@kernel.org, Ingo Molnar <mingo@redhat.com>, Yang Zhang <yang.z.zhang@Intel.com>, xen-devel@lists.xenproject.org, Ingo Molnar <mingo@elte.hu>, Shaohua Li <shli@kernel.org>, Peter Zijlstra <a.p.zijlstra@chello.nl>, Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>, Steven Rostedt <rostedt@goodmis.org>, xen-devel@lists.xensource.com, Al Viro <viro@zeniv.linux.org.uk>, Jiri Kosina <trivial@kernel.org>, Boris Ostrovsky <boris.ostrovsky@oracle.com>, virtualization@lists.linux-foundation.org, Seiji Aguchi <seiji.aguchi@hds.com>, linux-kernel@vger.kernel.org, David
List-Id: xen-devel@lists.xenproject.org

On 05.12.13, Jiang Liu wrote:

I like this in general however

> diff --git a/arch/x86/xen/smp.c b/arch/x86/xen/smp.c
> index 7cf1689..f241792 100644
> --- a/arch/x86/xen/smp.c
> +++ b/arch/x86/xen/smp.c
> @@ -560,7 +560,6 @@ static inline int xen_map_vector(int vector)
>  		xen_vector = XEN_RESCHEDULE_VECTOR;
>  		break;
>  	case CALL_FUNCTION_VECTOR:
> -	case CALL_FUNCTION_SINGLE_VECTOR:
>  		xen_vector = XEN_CALL_FUNCTION_VECTOR;
>  		break;
>  	case IRQ_WORK_VECTOR:

This chunk does not apply again tip's master branch, the code looks
different. You need to also kill XEN_CALL_FUNCTION_SINGLE_VECTOR which
is either part of a different patch or against a different tree. I
haven't seen a note in 0/19 or this patch description so I'm confused
here :)

Sebastian