| From | Paul Gortmaker <> | Subject | [34-longterm 128/196] Increase OSF partition limit from 8 to 18 | Date | Mon, 12 Mar 2012 20:20:41 -0400 |
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From: Linus Torvalds <torvalds@linux-foundation.org>
------------------- This is a commit scheduled for the next v2.6.34 longterm release. If you see a problem with using this for longterm, please comment. -------------------
commit 34d211a2d5df4984a35b18d8ccacbe1d10abb067 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> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com> --- fs/partitions/osf.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/fs/partitions/osf.c b/fs/partitions/osf.c index 6e0825e..9ddca58 100644 --- a/fs/partitions/osf.c +++ b/fs/partitions/osf.c @@ -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) { -- 1.7.9.3
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