Attachment 155155 Details for Bug 240392 – new patch to handle one shot specific settings and reset of affinity

[patch] new patch to handle one shot specific settings and reset of affinity

irqbalance.patch (text/plain), 1.73 KB, created by Neil Horman on 2007-05-22 11:35:59 UTC

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Creator: Neil Horman

Created: 2007-05-22 11:35:59 UTC

Size: 1.73 KB

patch

obsolete

>? irqbalance-0.55
>? irqbalance-0.55.tar.gz
>Index: irqbalance.init
>===================================================================
>RCS file: /cvs/dist/rpms/irqbalance/RHEL-5/irqbalance.init,v
>retrieving revision 1.6
>diff -u -r1.6 irqbalance.init
>--- irqbalance.init	17 Apr 2007 19:06:19 -0000	1.6
>+++ irqbalance.init	22 May 2007 11:27:05 -0000
>@@ -42,6 +42,41 @@
> 
> RETVAL=0
> 
>+reset_masks() {
>+	local i;
>+	local j;
>+	local mask_size;
>+	local mask;
>+
>+		
>+	for i in `ls /proc/irq`
>+	do
>+		mask=""
>+		mask_size=`cat /proc/irq/$i/smp_affinity | wc -c`
>+		#for some reason wc count the newline character in them
>+		let mask_size=$mask_size-1
>+		for j in `seq 1 1 $mask_size`
>+		do
>+			mask=$mask"f"
>+		done
>+		echo $mask >> /proc/irq/$i/smp_affinity
>+	done
>+}
>+
>+set_specific_masks() {
>+	local i;
>+	local irqnum;
>+
>+	for i in `ls /etc/sysconfig/irqbalance_masks/*.mask`
>+	do
>+		irqnum=`echo $i | cut -d"/" -f5 | cut -d"." -f1`
>+		if [ -d /proc/irq/$irqnum ]
>+		then
>+			cat /etc/sysconfig/irqbalance_masks/$irqnum.mask >> /proc/irq/$irqnum/smp_affinity
>+		fi
>+	done
>+}
>+
> start() {
>         if [ -n "$ONESHOT" -a -f /var/lock/irqbalance ]; then
>                 exit 0
>@@ -51,8 +86,14 @@
> 	then
> 		export IRQBALANCE_BANNED_CPUS=$IRQ_AFFINITY_MASK
> 	fi 	
>-        daemon irqbalance $ONESHOT $IRQ_AFFINITY
>-        RETVAL=$?
>+	if [ -n "$SPECIFIC_MASKS" ]
>+	then
>+		set_specific_masks
>+		RETVAL=0
>+	else
>+		daemon irqbalance $ONESHOT $IRQ_AFFINITY
>+		RETVAL=$?
>+	fi
>         echo
>         if [ $RETVAL -eq 0 ]; then
>                 if [ -n "$ONESHOT" ]; then
>@@ -69,6 +110,7 @@
>         echo -n $"Stopping $prog: "
>         killproc irqbalance
>         RETVAL=$?
>+	reset_masks
>         echo
>         [ $RETVAL -eq 0 ] && rm -f /var/lock/subsys/irqbalance
> 	return $RETVAL

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