396 				struct bdi_writeback *old_wb,  in inode_do_switch_wbs()  argument
414 	trace_inode_switch_wbs(inode, old_wb, new_wb);  in inode_do_switch_wbs()
424 			wb_stat_mod(old_wb, WB_RECLAIMABLE, -nr);  in inode_do_switch_wbs()
433 		wb_stat_mod(old_wb, WB_WRITEBACK, -nr);  in inode_do_switch_wbs()
438 		atomic_dec(&old_wb->writeback_inodes);  in inode_do_switch_wbs()
494 	struct bdi_writeback *old_wb = isw->inodes[0]->i_wb;  in inode_switch_wbs_work_fn()  local
515 	if (old_wb < new_wb) {  in inode_switch_wbs_work_fn()
516 		spin_lock(&old_wb->list_lock);  in inode_switch_wbs_work_fn()
520 		spin_lock_nested(&old_wb->list_lock, SINGLE_DEPTH_NESTING);  in inode_switch_wbs_work_fn()
524 		WARN_ON_ONCE((*inodep)->i_wb != old_wb);  in inode_switch_wbs_work_fn()
525 		if (inode_do_switch_wbs(*inodep, old_wb, new_wb))  in inode_switch_wbs_work_fn()
530 	spin_unlock(&old_wb->list_lock);  in inode_switch_wbs_work_fn()
536 		wb_put_many(old_wb, nr_switched);  in inode_switch_wbs_work_fn()