commit e178e517afac5c66403baf564479da31b1219041
Author: Hannes Reinecke <hare@suse.de>
Date:   Thu Mar 20 09:19:34 2008 +0100

    Update discovery to work with new sysfs layout
    
    With the new sysfs layout the parent device of a block device
    it 'block', and only the parent of this is the 'real' parent.
    
    Signed-off-by: Hannes Reinecke <hare@suse.de>

diff --git a/libmultipath/discovery.c b/libmultipath/discovery.c
index a85a248..30c36e5 100644
--- a/libmultipath/discovery.c
+++ b/libmultipath/discovery.c
@@ -550,6 +550,9 @@ sysfs_pathinfo(struct path * pp)
 	if (!parent)
 		parent = pp->sysdev;
 
+	if (!strncmp(parent->kernel, "block",5))
+		parent = sysfs_device_get_parent(parent);
+
 	condlog(3, "%s: subsystem = %s", pp->dev, parent->subsystem);
 
 	if (!strncmp(parent->subsystem, "scsi",4))