138 static inline struct backing_dev_info *inode_to_bdi(struct inode *inode)  in inode_to_bdi()  argument
142 	if (!inode)  in inode_to_bdi()
145 	sb = inode->i_sb;  in inode_to_bdi()
148 		return I_BDEV(inode)->bd_disk->bdi;  in inode_to_bdi()
181 int inode_congested(struct inode *inode, int cong_bits);
194 static inline bool inode_cgwb_enabled(struct inode *inode)  in inode_cgwb_enabled()  argument
196 	struct backing_dev_info *bdi = inode_to_bdi(inode);  in inode_cgwb_enabled()
201 		(inode->i_sb->s_iflags & SB_I_CGROUPWB);  in inode_cgwb_enabled()
269 static inline bool inode_to_wb_is_valid(struct inode *inode)  in inode_to_wb_is_valid()  argument
271 	return inode->i_wb;  in inode_to_wb_is_valid()
282 static inline struct bdi_writeback *inode_to_wb(const struct inode *inode)  in inode_to_wb()  argument
286 		     (!lockdep_is_held(&inode->i_lock) &&  in inode_to_wb()
287 		      !lockdep_is_held(&inode->i_mapping->i_pages.xa_lock) &&  in inode_to_wb()
288 		      !lockdep_is_held(&inode->i_wb->list_lock)));  in inode_to_wb()
290 	return inode->i_wb;  in inode_to_wb()
294 				struct inode *inode,  in inode_to_wb_wbc()  argument
301 	return wbc->wb ? wbc->wb : &inode_to_bdi(inode)->wb;  in inode_to_wb_wbc()
320 unlocked_inode_to_wb_begin(struct inode *inode, struct wb_lock_cookie *cookie)  in unlocked_inode_to_wb_begin()  argument
328 	cookie->locked = smp_load_acquire(&inode->i_state) & I_WB_SWITCH;  in unlocked_inode_to_wb_begin()
331 		xa_lock_irqsave(&inode->i_mapping->i_pages, cookie->flags);  in unlocked_inode_to_wb_begin()
337 	return inode->i_wb;  in unlocked_inode_to_wb_begin()
345 static inline void unlocked_inode_to_wb_end(struct inode *inode,  in unlocked_inode_to_wb_end()  argument
349 		xa_unlock_irqrestore(&inode->i_mapping->i_pages, cookie->flags);  in unlocked_inode_to_wb_end()
356 static inline bool inode_cgwb_enabled(struct inode *inode)  in inode_cgwb_enabled()  argument
372 static inline bool inode_to_wb_is_valid(struct inode *inode)  in inode_to_wb_is_valid()  argument
377 static inline struct bdi_writeback *inode_to_wb(struct inode *inode)  in inode_to_wb()  argument
379 	return &inode_to_bdi(inode)->wb;  in inode_to_wb()
383 				struct inode *inode,  in inode_to_wb_wbc()  argument
386 	return inode_to_wb(inode);  in inode_to_wb_wbc()
391 unlocked_inode_to_wb_begin(struct inode *inode, struct wb_lock_cookie *cookie)  in unlocked_inode_to_wb_begin()  argument
393 	return inode_to_wb(inode);  in unlocked_inode_to_wb_begin()
396 static inline void unlocked_inode_to_wb_end(struct inode *inode,  in unlocked_inode_to_wb_end()  argument
409 static inline int inode_congested(struct inode *inode, int cong_bits)  in inode_congested()  argument
411 	return wb_congested(&inode_to_bdi(inode)->wb, cong_bits);  in inode_congested()
416 static inline int inode_read_congested(struct inode *inode)  in inode_read_congested()  argument
418 	return inode_congested(inode, 1 << WB_sync_congested);  in inode_read_congested()
421 static inline int inode_write_congested(struct inode *inode)  in inode_write_congested()  argument
423 	return inode_congested(inode, 1 << WB_async_congested);  in inode_write_congested()
426 static inline int inode_rw_congested(struct inode *inode)  in inode_rw_congested()  argument
428 	return inode_congested(inode, (1 << WB_sync_congested) |  in inode_rw_congested()