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-rw-r--r--drivers/ieee1394/nodemgr.c20
1 files changed, 17 insertions, 3 deletions
diff --git a/drivers/ieee1394/nodemgr.c b/drivers/ieee1394/nodemgr.c
index 01ab2bfa8d9d..0ec298768621 100644
--- a/drivers/ieee1394/nodemgr.c
+++ b/drivers/ieee1394/nodemgr.c
@@ -1407,14 +1407,28 @@ static void nodemgr_node_probe(struct host_info *hi, int generation)
struct hpsb_host *host = hi->host;
struct class *class = &nodemgr_ne_class;
struct class_device *cdev;
+ struct node_entry *ne;
/* Do some processing of the nodes we've probed. This pulls them
* into the sysfs layer if needed, and can result in processing of
* unit-directories, or just updating the node and it's
- * unit-directories. */
+ * unit-directories.
+ *
+ * Run updates before probes. Usually, updates are time-critical
+ * while probes are time-consuming. (Well, those probes need some
+ * improvement...) */
+
down_read(&class->subsys.rwsem);
- list_for_each_entry(cdev, &class->children, node)
- nodemgr_probe_ne(hi, container_of(cdev, struct node_entry, class_dev), generation);
+ list_for_each_entry(cdev, &class->children, node) {
+ ne = container_of(cdev, struct node_entry, class_dev);
+ if (!ne->needs_probe)
+ nodemgr_probe_ne(hi, ne, generation);
+ }
+ list_for_each_entry(cdev, &class->children, node) {
+ ne = container_of(cdev, struct node_entry, class_dev);
+ if (ne->needs_probe)
+ nodemgr_probe_ne(hi, ne, generation);
+ }
up_read(&class->subsys.rwsem);