[PATCH v4] ubifs: allow userspace to map mounts to volumes

From: Rabin Vincent There currently appears to be no way for userspace to find out the underlying volume number for a mounted ubifs file system, since ubifs uses anonymous block devices. The volume name is present in /proc/mounts but UBI volumes can be renamed after the volume

[PATCH v4] ubifs: allow userspace to map mounts to volumes

From: Rabin Vincent There currently appears to be no way for userspace to find out the underlying volume number for a mounted ubifs file system, since ubifs uses anonymous block devices. The volume name is present in /proc/mounts but UBI volumes can be renamed after the volume has been mounted.