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  • Cai Zhiyong's avatar
    block: support embedded device command line partition · bab55417
    Cai Zhiyong authored
    
    
    Read block device partition table from command line.  The partition used
    for fixed block device (eMMC) embedded device.  It is no MBR, save
    storage space.  Bootloader can be easily accessed by absolute address of
    data on the block device.  Users can easily change the partition.
    
    This code reference MTD partition, source "drivers/mtd/cmdlinepart.c"
    About the partition verbose reference
    "Documentation/block/cmdline-partition.txt"
    
    [akpm@linux-foundation.org: fix printk text]
    [yongjun_wei@trendmicro.com.cn: fix error return code in parse_parts()]
    Signed-off-by: default avatarCai Zhiyong <caizhiyong@huawei.com>
    Cc: Karel Zak <kzak@redhat.com>
    Cc: "Wanglin (Albert)" <albert.wanglin@huawei.com>
    Cc: Marius Groeger <mag@sysgo.de>
    Cc: David Woodhouse <dwmw2@infradead.org>
    Cc: Jens Axboe <axboe@kernel.dk>
    Cc: Brian Norris <computersforpeace@gmail.com>
    Cc: Artem Bityutskiy <dedekind@infradead.org>
    Signed-off-by: default avatarWei Yongjun <yongjun_wei@trendmicro.com.cn>
    Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
    Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
    bab55417