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Increase OSF partition limit from 8 to 18

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commit 34d211a2d5 upstream.

It turns out that while a maximum of 8 partitions may be what people
"should" have had, you can actually fit up to 18 entries(*) in a sector.

And some people clearly were taking advantage of that, like Michael
Cree, who had ten partitions on one of his OSF disks.

(*) The OSF partition data starts at byte offset 64 in the first sector,
    and the array of 16-byte partition entries start at offset 148 in
    the on-disk partition structure.

Reported-by: Michael Cree <mcree@orcon.net.nz>
Cc: stable@kernel.org (v2.6.38)
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Linus Torvalds 2011-03-16 08:04:07 -07:00 committed by Greg Kroah-Hartman
parent 473ef924e5
commit 06200342c9
1 changed files with 1 additions and 1 deletions
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2
fs/partitions/osf.c
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@ -10,7 +10,7 @@
#include "check.h"
#include "osf.h"
#define MAX_OSF_PARTITIONS 8
#define MAX_OSF_PARTITIONS 18
int osf_partition(struct parsed_partitions *state, struct block_device *bdev)
{