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-rw-r--r--block/genhd.c8
1 files changed, 8 insertions, 0 deletions
diff --git a/block/genhd.c b/block/genhd.c
index 457fdac4c17d..36bd3e12a6d4 100644
--- a/block/genhd.c
+++ b/block/genhd.c
@@ -61,6 +61,14 @@ int register_blkdev(unsigned int major, const char *name)
/* temporary */
if (major == 0) {
for (index = ARRAY_SIZE(major_names)-1; index > 0; index--) {
+ /*
+ * Disallow the LANANA-assigned LOCAL/EXPERIMENTAL
+ * majors
+ */
+ if ((60 <= index && index <= 63) ||
+ (120 <= index && index <= 127) ||
+ (240 <= index && index <= 254))
+ continue;
if (major_names[index] == NULL)
break;
}