From a0af6841cd9ebf0c5ef3f9d40d744488abed3709 Mon Sep 17 00:00:00 2001
From: arjanvandeven <arjanvandeven@46b42954-3823-0410-bd82-eb80b452c9b5>
Date: Tue, 28 Aug 2007 16:08:14 +0000
Subject: [PATCH] make sure we don't set affinity for NONE interrupts Bug
 report by Maxim Patlasov

git-svn-id: https://irqbalance.googlecode.com/svn/trunk@19 46b42954-3823-0410-bd82-eb80b452c9b5
---
 activate.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/activate.c b/activate.c
index 9384577..d66cf27 100644
--- a/activate.c
+++ b/activate.c
@@ -41,7 +41,10 @@ void activate_mapping(void)
 		irq = iter->data;
 		iter = g_list_next(iter);
 
-		if (!cpus_equal(irq->mask, irq->old_mask)) {
+		/* don't set the level if it's a NONE irq, or if there is
+		 * no change */
+		if (irq->balance_level != BALANCE_NONE && 
+			!cpus_equal(irq->mask, irq->old_mask)) {
 			char buf[PATH_MAX];
 			FILE *file;
 			sprintf(buf, "/proc/irq/%i/smp_affinity", irq->number);