nodemask: use new node_to_cpumask_ptr function

  * Use new node_to_cpumask_ptr.  This creates a pointer to the
    cpumask for a given node.  This definition is in mm patch:

	asm-generic-add-node_to_cpumask_ptr-macro.patch

  * Use new set_cpus_allowed_ptr function.

Depends on:
	[mm-patch]: asm-generic-add-node_to_cpumask_ptr-macro.patch
	[sched-devel]: sched: add new set_cpus_allowed_ptr function
	[x86/latest]: x86: add cpus_scnprintf function

Cc: Greg Kroah-Hartman <gregkh@suse.de>
Cc: Greg Banks <gnb@melbourne.sgi.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Signed-off-by: Mike Travis <travis@sgi.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

1 files changed, 4 insertions, 3 deletions

diff --git a/drivers/base/node.c b/drivers/base/node.c
index e59861f18ce5..8e3f25bb8f80 100644
--- a/drivers/base/node.c
+++ b/drivers/base/node.c
@@ -22,14 +22,15 @@ static struct sysdev_class node_class = {
 static ssize_t node_read_cpumap(struct sys_device * dev, char * buf)
 {
         struct node *node_dev = to_node(dev);
-        cpumask_t mask = node_to_cpumask(node_dev->sysdev.id);
+        node_to_cpumask_ptr(mask, node_dev->sysdev.id);
         int len;
 
         /* 2004/06/03: buf currently PAGE_SIZE, need > 1 char per 4 bits. */
         BUILD_BUG_ON(MAX_NUMNODES/4 > PAGE_SIZE/2);
 
-        len = cpumask_scnprintf(buf, PAGE_SIZE-1, mask);
-        len += sprintf(buf + len, "\n");
+        len = cpumask_scnprintf(buf, PAGE_SIZE-2, *mask);
+        buf[len++] = '\n';
+        buf[len] = '\0';
         return len;
 }