Provide a set of sysctls and tunables to disable device node creation

for specific "kinds" of disk labels - for example, GPT UUIDs.  Reason
for this is that sometimes, other GEOM classes attach to these device
nodes instead of the proper ones - e.g. they attach to /dev/gptid/XXX
instead of /dev/ada0p2, which is annoying.

Reviewed by:	pjd (earlier version)
MFC after:	1 month

1 files changed, 5 insertions, 2 deletions

diff --git a/sys/geom/label/g_label_reiserfs.c b/sys/geom/label/g_label_reiserfs.c
index 18ce1ef..a912e97 100644
--- a/sys/geom/label/g_label_reiserfs.c
+++ b/sys/geom/label/g_label_reiserfs.c
@@ -111,7 +111,10 @@ exit_free:
 	g_free(fs);
 }
 
-const struct g_label_desc g_label_reiserfs = {
+struct g_label_desc g_label_reiserfs = {
 	.ld_taste = g_label_reiserfs_taste,
-	.ld_dir = "reiserfs"
+	.ld_dir = "reiserfs",
+	.ld_enabled = 1
 };
+
+G_LABEL_INIT(reiserfs, g_label_reiserfs, "Create device nodes for REISERFS volumes");