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    Subject[072/143] Increase OSF partition limit from 8 to 18
    2.6.32-longterm review patch.  If anyone has any objections, please let us know.


    From: Linus Torvalds <>

    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 <>
    Cc: (v2.6.38)
    Signed-off-by: Linus Torvalds <>
    Signed-off-by: Greg Kroah-Hartman <>
    fs/partitions/osf.c | 2 +-
    1 file changed, 1 insertion(+), 1 deletion(-)

    --- 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)

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      Last update: 2011-05-06 02:53    [W:0.027 / U:46.324 seconds]
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