371 				struct bdi_writeback *old_wb,  in inode_do_switch_wbs()  argument
389 	trace_inode_switch_wbs(inode, old_wb, new_wb);  in inode_do_switch_wbs()
399 			wb_stat_mod(old_wb, WB_RECLAIMABLE, -nr);  in inode_do_switch_wbs()
408 		wb_stat_mod(old_wb, WB_WRITEBACK, -nr);  in inode_do_switch_wbs()
413 		atomic_dec(&old_wb->writeback_inodes);  in inode_do_switch_wbs()
469 	struct bdi_writeback *old_wb = isw->inodes[0]->i_wb;  in inode_switch_wbs_work_fn()  local
490 	if (old_wb < new_wb) {  in inode_switch_wbs_work_fn()
491 		spin_lock(&old_wb->list_lock);  in inode_switch_wbs_work_fn()
495 		spin_lock_nested(&old_wb->list_lock, SINGLE_DEPTH_NESTING);  in inode_switch_wbs_work_fn()
499 		WARN_ON_ONCE((*inodep)->i_wb != old_wb);  in inode_switch_wbs_work_fn()
500 		if (inode_do_switch_wbs(*inodep, old_wb, new_wb))  in inode_switch_wbs_work_fn()
505 	spin_unlock(&old_wb->list_lock);  in inode_switch_wbs_work_fn()
511 		wb_put_many(old_wb, nr_switched);  in inode_switch_wbs_work_fn()