tree ed04596369ee036dfcbfbc1417e354564e56c271
parent 7a7b2d5f65a7a12c4f5d43fb10913ca908102833
author Richard <richard@aaazen.com> 1495394820 -0700
committer Greg Kroah-Hartman <gregkh@linuxfoundation.org> 1497674509 +0200

partitions/msdos: FreeBSD UFS2 file systems are not recognized

commit 223220356d5ebc05ead9a8d697abb0c0a906fc81 upstream.

The code in block/partitions/msdos.c recognizes FreeBSD, OpenBSD
and NetBSD partitions and does a reasonable job picking out OpenBSD
and NetBSD UFS subpartitions.

But for FreeBSD the subpartitions are always "bad".

    Kernel: <bsd:bad subpartition - ignored

Though all 3 of these BSD systems use UFS as a file system, only
FreeBSD uses relative start addresses in the subpartition
declarations.

The following patch fixes this for FreeBSD partitions and leaves
the code for OpenBSD and NetBSD intact:

Signed-off-by: Richard Narron <comet.berkeley@gmail.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@fb.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>