linux-kernel - [PATCH] xen: minor fix in apic ipi interface func

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Message-ID: <5163F29D.6080605@oracle.com>
Date:	Tue, 09 Apr 2013 18:51:09 +0800
From:	Zhenzhong Duan <zhenzhong.duan@...cle.com>
To:	xen-devel@...ts.xensource.com,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
CC:	Konrad Rzeszutek Wilk <konrad.wilk@...cle.com>,
	Feng Jin <joe.jin@...cle.com>, ben@...hro.net
Subject: [PATCH] xen: minor fix in apic ipi interface func

xen_send_IPI_mask_allbutself uses native vector as input other than xen_vector.

xen_send_IPI_one need to be called to pass xen_vector in xen_send_IPI_mask_allbutself.

Signed-off-by: Zhenzhong Duan <zhenzhong.duan@...cle.com>
---
 arch/x86/xen/smp.c |   11 ++++++-----
 1 files changed, 6 insertions(+), 5 deletions(-)

diff --git a/arch/x86/xen/smp.c b/arch/x86/xen/smp.c
index 09ea61d..bf27868 100644
--- a/arch/x86/xen/smp.c
+++ b/arch/x86/xen/smp.c
@@ -565,6 +565,10 @@ void xen_send_IPI_mask_allbutself(const struct cpumask *mask,
 {
 	unsigned cpu;
 	unsigned int this_cpu = smp_processor_id();
+	int xen_vector = xen_map_vector(vector);
+
+	if (xen_vector < 0)
+		return;
 
 	if (!(num_online_cpus() > 1))
 		return;
@@ -573,16 +577,13 @@ void xen_send_IPI_mask_allbutself(const struct cpumask *mask,
 		if (this_cpu == cpu)
 			continue;
 
-		xen_smp_send_call_function_single_ipi(cpu);
+		xen_send_IPI_one(cpu, xen_vector);
 	}
 }
 
 void xen_send_IPI_allbutself(int vector)
 {
-	int xen_vector = xen_map_vector(vector);
-
-	if (xen_vector >= 0)
-		xen_send_IPI_mask_allbutself(cpu_online_mask, xen_vector);
+	xen_send_IPI_mask_allbutself(cpu_online_mask, vector);
 }
 
 static irqreturn_t xen_call_function_interrupt(int irq, void *dev_id)
-- 
1.7.3

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