This is a note to let you know that I've just added the patch titled
partitions/msdos: FreeBSD UFS2 file systems are not recognized
to the 4.9-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
partitions-msdos-freebsd-ufs2-file-systems-are-not-recognized.patch
and it can be found in the queue-4.9 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 223220356d5ebc05ead9a8d697abb0c0a906fc81 Mon Sep 17 00:00:00 2001
From: Richard <richard@xxxxxxxxxx>
Date: Sun, 21 May 2017 12:27:00 -0700
Subject: partitions/msdos: FreeBSD UFS2 file systems are not recognized
From: Richard <richard@xxxxxxxxxx>
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@xxxxxxxxx>
Reviewed-by: Christoph Hellwig <hch@xxxxxx>
Signed-off-by: Jens Axboe <axboe@xxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
block/partitions/msdos.c | 2 ++
1 file changed, 2 insertions(+)
--- a/block/partitions/msdos.c
+++ b/block/partitions/msdos.c
@@ -300,6 +300,8 @@ static void parse_bsd(struct parsed_part
continue;
bsd_start = le32_to_cpu(p->p_offset);
bsd_size = le32_to_cpu(p->p_size);
+ if (memcmp(flavour, "bsd\0", 4) == 0)
+ bsd_start += offset;
if (offset == bsd_start && size == bsd_size)
/* full parent partition, we have it already */
continue;
Patches currently in stable-queue which might be from richard@xxxxxxxxxx are
queue-4.9/partitions-msdos-freebsd-ufs2-file-systems-are-not-recognized.patch