• NeilBrown's avatar
    md/raid10: fix memory leak when reshaping a RAID10. · ce0b0a46
    NeilBrown authored
    raid10 reshape clears unwanted bits from a bio->bi_flags using
    a method which, while clumsy, worked until 3.10 when BIO_OWNS_VEC
    was added.
    Since then it clears that bit but shouldn't.  This results in a
    memory leak.
    
    So change to used the approved method of clearing unwanted bits.
    
    As this causes a memory leak which can consume all of memory
    the fix is suitable for -stable.
    
    Fixes: a38352e0
    Cc: stable@vger.kernel.org (v3.10+)
    Reported-by: mdraid.pkoch@dfgh.net (Peter Koch)
    Signed-off-by: default avatarNeilBrown <neilb@suse.de>
    ce0b0a46
raid10.c 131 KB