• Tejun Heo's avatar
    writeback: relocate wb[_try]_get(), wb_put(), inode_{attach|detach}_wb() · 21c6321f
    Tejun Heo authored
    Currently, majority of cgroup writeback support including all the
    above functions are implemented in include/linux/backing-dev.h and
    mm/backing-dev.c; however, the portion closely related to writeback
    logic implemented in include/linux/writeback.h and mm/page-writeback.c
    will expand to support foreign writeback detection and correction.
    
    This patch moves wb[_try]_get() and wb_put() to
    include/linux/backing-dev-defs.h so that they can be used from
    writeback.h and inode_{attach|detach}_wb() to writeback.h and
    page-writeback.c.
    
    This is pure reorganization and doesn't introduce any functional
    changes.
    Signed-off-by: default avatarTejun Heo <tj@kernel.org>
    Cc: Jens Axboe <axboe@kernel.dk>
    Cc: Jan Kara <jack@suse.cz>
    Cc: Wu Fengguang <fengguang.wu@intel.com>
    Cc: Greg Thelen <gthelen@google.com>
    Signed-off-by: default avatarJens Axboe <axboe@fb.com>
    21c6321f
backing-dev.c 25.6 KB