add comment explaining previous change
diff --git a/util-linux/volume_id/get_devname.c b/util-linux/volume_id/get_devname.c
index e99c15b..d82808f 100644
--- a/util-linux/volume_id/get_devname.c
+++ b/util-linux/volume_id/get_devname.c
@@ -107,6 +107,17 @@
if (uuidCache)
return;
+ /* We were scanning /proc/partitions
+ * and /proc/sys/dev/cdrom/info here.
+ * Missed volume managers. I see that "standard" blkid uses these:
+ * /dev/mapper/control
+ * /proc/devices
+ * /proc/evms/volumes
+ * /proc/lvm/VGs
+ * This is unacceptably complex. Let's just scan /dev.
+ * (Maybe add scanning of /sys/block/XXX/dev for devices
+ * somehow not having their /dev/XXX entries created?) */
+
recursive_action("/dev", ACTION_RECURSE,
uuidcache_check_device, /* file_action */
NULL, /* dir_action */