• Jan Kara's avatar
    bdi: Unify bdi->wb_list handling for root wb_writeback · e8cb72b3
    Jan Kara authored
    Currently root wb_writeback structure is added to bdi->wb_list in
    bdi_init() and never removed. That is different from all other
    wb_writeback structures which get added to the list when created and
    removed from it before wb_shutdown().
    
    So move list addition of root bdi_writeback to bdi_register() and list
    removal of all wb_writeback structures to wb_shutdown(). That way a
    wb_writeback structure is on bdi->wb_list if and only if it can handle
    writeback and it will make it easier for us to handle shutdown of all
    wb_writeback structures in bdi_unregister().
    Acked-by: default avatarTejun Heo <tj@kernel.org>
    Signed-off-by: default avatarJan Kara <jack@suse.cz>
    Signed-off-by: default avatarJens Axboe <axboe@fb.com>
    e8cb72b3
backing-dev.c 28 KB