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    writeback: separate out include/linux/backing-dev-defs.h · 66114cad
    Tejun Heo 提交于
    With the planned cgroup writeback support, backing-dev related
    declarations will be more widely used across block and cgroup;
    unfortunately, including backing-dev.h from include/linux/blkdev.h
    makes cyclic include dependency quite likely.
    
    This patch separates out backing-dev-defs.h which only has the
    essential definitions and updates blkdev.h to include it.  c files
    which need access to more backing-dev details now include
    backing-dev.h directly.  This takes backing-dev.h off the common
    include dependency chain making it a lot easier to use it across block
    and cgroup.
    
    v2: fs/fat build failure fixed.
    Signed-off-by: NTejun Heo <tj@kernel.org>
    Reviewed-by: NJan Kara <jack@suse.cz>
    Cc: Jens Axboe <axboe@kernel.dk>
    Signed-off-by: NJens Axboe <axboe@fb.com>
    66114cad
extents.c 155.6 KB