21 static inline struct backing_dev_info *bdi_get(struct backing_dev_info *bdi)  in bdi_get()  argument
23 	kref_get(&bdi->refcnt);  in bdi_get()
24 	return bdi;  in bdi_get()
28 void bdi_put(struct backing_dev_info *bdi);
31 int bdi_register(struct backing_dev_info *bdi, const char *fmt, ...);
33 int bdi_register_va(struct backing_dev_info *bdi, const char *fmt,
35 int bdi_register_owner(struct backing_dev_info *bdi, struct device *owner);
36 void bdi_unregister(struct backing_dev_info *bdi);
61 static inline bool bdi_has_dirty_io(struct backing_dev_info *bdi)  in bdi_has_dirty_io()  argument
67 	return atomic_long_read(&bdi->tot_write_bandwidth);  in bdi_has_dirty_io()
110 int bdi_set_min_ratio(struct backing_dev_info *bdi, unsigned int min_ratio);
111 int bdi_set_max_ratio(struct backing_dev_info *bdi, unsigned int max_ratio);
175 	struct backing_dev_info *bdi = wb->bdi;  in wb_congested()  local
177 	if (bdi->congested_fn)  in wb_congested()
178 		return bdi->congested_fn(bdi->congested_data, cong_bits);  in wb_congested()
185 static inline bool bdi_cap_synchronous_io(struct backing_dev_info *bdi)  in bdi_cap_synchronous_io()  argument
187 	return bdi->capabilities & BDI_CAP_SYNCHRONOUS_IO;  in bdi_cap_synchronous_io()
190 static inline bool bdi_cap_stable_pages_required(struct backing_dev_info *bdi)  in bdi_cap_stable_pages_required()  argument
192 	return bdi->capabilities & BDI_CAP_STABLE_WRITES;  in bdi_cap_stable_pages_required()
195 static inline bool bdi_cap_writeback_dirty(struct backing_dev_info *bdi)  in bdi_cap_writeback_dirty()  argument
197 	return !(bdi->capabilities & BDI_CAP_NO_WRITEBACK);  in bdi_cap_writeback_dirty()
200 static inline bool bdi_cap_account_dirty(struct backing_dev_info *bdi)  in bdi_cap_account_dirty()  argument
202 	return !(bdi->capabilities & BDI_CAP_NO_ACCT_DIRTY);  in bdi_cap_account_dirty()
205 static inline bool bdi_cap_account_writeback(struct backing_dev_info *bdi)  in bdi_cap_account_writeback()  argument
208 	return !(bdi->capabilities & (BDI_CAP_NO_ACCT_WB |  in bdi_cap_account_writeback()
231 wb_congested_get_create(struct backing_dev_info *bdi, int blkcg_id, gfp_t gfp);
233 struct bdi_writeback *wb_get_lookup(struct backing_dev_info *bdi,
235 struct bdi_writeback *wb_get_create(struct backing_dev_info *bdi,
255 	struct backing_dev_info *bdi = inode_to_bdi(inode);  in inode_cgwb_enabled()  local
259 		bdi_cap_account_dirty(bdi) &&  in inode_cgwb_enabled()
260 		(bdi->capabilities & BDI_CAP_CGROUP_WRITEBACK) &&  in inode_cgwb_enabled()
272 static inline struct bdi_writeback *wb_find_current(struct backing_dev_info *bdi)  in wb_find_current()  argument
279 		return &bdi->wb;  in wb_find_current()
281 	wb = radix_tree_lookup(&bdi->cgwb_tree, memcg_css->id);  in wb_find_current()
302 wb_get_create_current(struct backing_dev_info *bdi, gfp_t gfp)  in wb_get_create_current()  argument
307 	wb = wb_find_current(bdi);  in wb_get_create_current()
316 		wb = wb_get_create(bdi, memcg_css, gfp);  in wb_get_create_current()
411 wb_congested_get_create(struct backing_dev_info *bdi, int blkcg_id, gfp_t gfp)  in wb_congested_get_create()  argument
413 	refcount_inc(&bdi->wb_congested->refcnt);  in wb_congested_get_create()
414 	return bdi->wb_congested;  in wb_congested_get_create()
423 static inline struct bdi_writeback *wb_find_current(struct backing_dev_info *bdi)  in wb_find_current()  argument
425 	return &bdi->wb;  in wb_find_current()
429 wb_get_create_current(struct backing_dev_info *bdi, gfp_t gfp)  in wb_get_create_current()  argument
431 	return &bdi->wb;  in wb_get_create_current()
486 static inline int bdi_congested(struct backing_dev_info *bdi, int cong_bits)  in bdi_congested()  argument
488 	return wb_congested(&bdi->wb, cong_bits);  in bdi_congested()
491 static inline int bdi_read_congested(struct backing_dev_info *bdi)  in bdi_read_congested()  argument
493 	return bdi_congested(bdi, 1 << WB_sync_congested);  in bdi_read_congested()
496 static inline int bdi_write_congested(struct backing_dev_info *bdi)  in bdi_write_congested()  argument
498 	return bdi_congested(bdi, 1 << WB_async_congested);  in bdi_write_congested()
501 static inline int bdi_rw_congested(struct backing_dev_info *bdi)  in bdi_rw_congested()  argument
503 	return bdi_congested(bdi, (1 << WB_sync_congested) |  in bdi_rw_congested()