nr_wb_congested  1059 mm/backing-dev.c static atomic_t nr_wb_congested[2];
nr_wb_congested  1068 mm/backing-dev.c 		atomic_dec(&nr_wb_congested[sync]);
nr_wb_congested  1081 mm/backing-dev.c 		atomic_inc(&nr_wb_congested[sync]);
nr_wb_congested  1136 mm/backing-dev.c 	if (atomic_read(&nr_wb_congested[sync]) == 0) {