initial import

git-svn-id: https://irqbalance.googlecode.com/svn/trunk@2 46b42954-3823-0410-bd82-eb80b452c9b5

Makefile

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+CFLAGS+=-g -Os -D_FORTIFY_SOURCE=2 -Wall -W `pkg-config --cflags glib-2.0` 
+
+all: irqbalance
+
+LIBS=bitmap.o irqbalance.o cputree.o  procinterrupts.o irqlist.o placement.o activate.o network.o powermode.o numa.o classify.o
+
+irqbalance: .depend $(LIBS)
+	gcc  -g -O2 -D_FORTIFY_SOURCE=2 -Wall  `pkg-config --libs glib-2.0` $(LIBS) -o irqbalance 
+
+clean:
+	rm -f irqbalance *~ *.o .depend
+
+# rule for building dependency lists, and writing them to a file
+# named ".depend".
+.depend:
+	rm -f .depend
+	gccmakedep -f- -- $(CFLAGS) -- *.c > .depend

activate.c

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+/* 
+ * Copyright (C) 2006, Intel Corporation
+ * 
+ * This file is part of irqbalance
+ *
+ * This program file is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; version 2 of the License.
+ * 
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * for more details.
+ * 
+ * You should have received a copy of the GNU General Public License
+ * along with this program in a file named COPYING; if not, write to the 
+ * Free Software Foundation, Inc., 
+ * 51 Franklin Street, Fifth Floor, 
+ * Boston, MA 02110-1301 USA
+ */
+
+/* 
+ * This file contains the code to communicate a selected distribution / mapping
+ * of interrupts to the kernel.
+ */
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <stdint.h>
+
+#include "irqbalance.h"
+
+
+void activate_mapping(void)
+{
+	struct interrupt *irq;
+	GList *iter;
+
+	iter = g_list_first(interrupts);
+	while (iter) {
+		irq = iter->data;
+		iter = g_list_next(iter);
+
+		if (!cpus_equal(irq->mask, irq->old_mask)) {
+			char buf[PATH_MAX];
+			FILE *file;
+			sprintf(buf, "/proc/irq/%i/smp_affinity", irq->number);
+			file = fopen(buf, "w");
+			if (!file)
+				continue;
+			cpumask_scnprintf(buf, PATH_MAX, irq->mask);
+			fprintf(file,"%s", buf);
+			fclose(file);
+			irq->old_mask = irq->mask;
+		}
+	}
+}