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    SubjectRE: [PATCH] block: add verifier for cmdline partition
    Date
    > -----Original Message-----
    > From: Wang YanQing [mailto:udknight@gmail.com]
    > Sent: Thursday, May 03, 2018 7:18 PM
    > To: axboe@kernel.dk
    > Cc: gregkh@linuxfoundation.org; pombredanne@nexb.com;
    > tglx@linutronix.de; Caizhiyong <caizhiyong@hisilicon.com>; linux-
    > block@vger.kernel.org; linux-kernel@vger.kernel.org
    > Subject: [PATCH] block: add verifier for cmdline partition
    >
    > I meet strange filesystem corruption issue recently, the reason
    > is there are overlaps partitions in cmdline partition argument.
    >
    > This patch add verifier for cmdline partition, then if there are
    > overlaps partitions, cmdline_partition will return error and log
    > a error message.
    >

    Partition overlap was intentionally designed in this cmdline partition.
    some time, the cmdline partition save raw data(not filesystem), the overlap makes data access very convenient.

    reference http://lists.infradead.org/pipermail/linux-mtd/2013-August/048092.html

    > Signed-off-by: Wang YanQing <udknight@gmail.com>
    > ---
    > block/partitions/cmdline.c | 63
    > +++++++++++++++++++++++++++++++++++++++++++++-
    > 1 file changed, 62 insertions(+), 1 deletion(-)
    >

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