46 struct blkcg {  struct
104 	struct blkcg			*blkcg;  member
114 	struct blkcg			*blkcg;  member
182 extern struct blkcg blkcg_root;
185 struct blkcg_gq *blkg_lookup_slowpath(struct blkcg *blkcg,
187 struct blkcg_gq *blkg_lookup_create(struct blkcg *blkcg,
202 void blkcg_print_blkgs(struct seq_file *sf, struct blkcg *blkcg,
229 int blkg_conf_prep(struct blkcg *blkcg, const struct blkcg_policy *pol,
234 static inline struct blkcg *css_to_blkcg(struct cgroup_subsys_state *css)  in css_to_blkcg()
236 	return css ? container_of(css, struct blkcg, css) : NULL;  in css_to_blkcg()
239 static inline struct blkcg *bio_blkcg(struct bio *bio)  in bio_blkcg()
293 static inline struct blkcg *blkcg_parent(struct blkcg *blkcg)  in blkcg_parent()  argument
295 	return css_to_blkcg(blkcg->css.parent);  in blkcg_parent()
309 static inline struct blkcg_gq *__blkg_lookup(struct blkcg *blkcg,  in __blkg_lookup()  argument
315 	if (blkcg == &blkcg_root)  in __blkg_lookup()
318 	blkg = rcu_dereference(blkcg->blkg_hint);  in __blkg_lookup()
322 	return blkg_lookup_slowpath(blkcg, q, update_hint);  in __blkg_lookup()
334 static inline struct blkcg_gq *blkg_lookup(struct blkcg *blkcg,  in blkg_lookup()  argument
341 	return __blkg_lookup(blkcg, q, false);  in blkg_lookup()
368 static inline struct blkcg_policy_data *blkcg_to_cpd(struct blkcg *blkcg,  in blkcg_to_cpd()  argument
371 	return blkcg ? blkcg->cpd[pol->plid] : NULL;  in blkcg_to_cpd()
385 static inline struct blkcg *cpd_to_blkcg(struct blkcg_policy_data *cpd)  in cpd_to_blkcg()
387 	return cpd ? cpd->blkcg : NULL;  in cpd_to_blkcg()
390 extern void blkcg_destroy_blkgs(struct blkcg *blkcg);
400 static inline void blkcg_cgwb_get(struct blkcg *blkcg)  in blkcg_cgwb_get()  argument
402 	refcount_inc(&blkcg->cgwb_refcnt);  in blkcg_cgwb_get()
415 static inline void blkcg_cgwb_put(struct blkcg *blkcg)  in blkcg_cgwb_put()  argument
417 	if (refcount_dec_and_test(&blkcg->cgwb_refcnt))  in blkcg_cgwb_put()
418 		blkcg_destroy_blkgs(blkcg);  in blkcg_cgwb_put()
423 static inline void blkcg_cgwb_get(struct blkcg *blkcg) { }  in blkcg_cgwb_get()  argument
425 static inline void blkcg_cgwb_put(struct blkcg *blkcg)  in blkcg_cgwb_put()  argument
428 	blkcg_destroy_blkgs(blkcg);  in blkcg_cgwb_put()
443 	return cgroup_path(blkg->blkcg->css.cgroup, buf, buflen);  in blkg_path()
499 	css_for_each_descendant_pre((pos_css), &(p_blkg)->blkcg->css)	\
514 	css_for_each_descendant_post((pos_css), &(p_blkg)->blkcg->css)	\
531 	struct blkcg *blkcg;  in blk_get_rl()  local
536 	blkcg = bio_blkcg(bio);  in blk_get_rl()
539 	if (blkcg == &blkcg_root)  in blk_get_rl()
547 	blkg = blkg_lookup(blkcg, q);  in blk_get_rl()
568 	if (rl->blkg->blkcg != &blkcg_root)  in blk_put_rl()
803 	struct blkcg *blkcg;  in blkcg_bio_issue_check()  local
808 	blkcg = bio_blkcg(bio);  in blkcg_bio_issue_check()
811 	bio_associate_blkcg(bio, &blkcg->css);  in blkcg_bio_issue_check()
813 	blkg = blkg_lookup(blkcg, q);  in blkcg_bio_issue_check()
816 		blkg = blkg_lookup_create(blkcg, q);  in blkcg_bio_issue_check()
844 		atomic_inc(&blkg->blkcg->css.cgroup->congestion_count);  in blkcg_use_delay()
871 		atomic_dec(&blkg->blkcg->css.cgroup->congestion_count);  in blkcg_unuse_delay()
884 			atomic_dec(&blkg->blkcg->css.cgroup->congestion_count);  in blkcg_clear_delay()
896 struct blkcg {  struct
920 static inline struct blkcg_gq *blkg_lookup(struct blkcg *blkcg, void *key) { return NULL; }  in blkg_lookup()  argument
933 static inline struct blkcg *bio_blkcg(struct bio *bio) { return NULL; }  in bio_blkcg()