BDI_CAP_CGROUP_WRITEBACK  505 block/blk-core.c 	q->backing_dev_info->capabilities = BDI_CAP_CGROUP_WRITEBACK;
BDI_CAP_CGROUP_WRITEBACK 2965 fs/btrfs/disk-io.c 	sb->s_bdi->capabilities |= BDI_CAP_CGROUP_WRITEBACK;
BDI_CAP_CGROUP_WRITEBACK  261 include/linux/backing-dev.h 		(bdi->capabilities & BDI_CAP_CGROUP_WRITEBACK) &&