• Christoph Hellwig's avatar
    dm: refactor ioctl handling · e56f81e0
    Christoph Hellwig authored
    This moves the call to blkdev_ioctl and the argument checking to DM core
    code, and only leaves a callout to find the block device to operate on
    in the targets.  This simplifies the code and allows us to pass through
    ioctl-like command using other methods in the next patch.
    
    Also split out a helper around calling the prepare_ioctl method that
    will be reused for persistent reservation handling.
    Signed-off-by: default avatarChristoph Hellwig <hch@lst.de>
    Signed-off-by: default avatarMike Snitzer <snitzer@redhat.com>
    e56f81e0
dm-log-writes.c 19.9 KB