/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _BLK_CGROUP_H
#define _BLK_CGROUP_H
/*
* Common Block IO controller cgroup interface
*
* Based on ideas and code from CFQ , CFS and BFQ :
* Copyright ( C ) 2003 Jens Axboe < axboe @ kernel . dk >
*
* Copyright ( C ) 2008 Fabio Checconi < fabio @ gandalf . sssup . it >
* Paolo Valente < paolo . valente @ unimore . it >
*
* Copyright ( C ) 2009 Vivek Goyal < vgoyal @ redhat . com >
* Nauman Rafique < nauman @ google . com >
*/
#include <linux/types.h>
struct bio;
struct cgroup_subsys_state;
struct gendisk;
#define FC_APPID_LEN 129
#ifdef CONFIG_BLK_CGROUP
extern struct cgroup_subsys_state * const blkcg_root_css;
void blkcg_schedule_throttle(struct gendisk *disk, bool use_memdelay);
void blkcg_maybe_throttle_current(void );
bool blk_cgroup_congested(void );
void blkcg_pin_online(struct cgroup_subsys_state *blkcg_css);
void blkcg_unpin_online(struct cgroup_subsys_state *blkcg_css);
struct list_head *blkcg_get_cgwb_list(struct cgroup_subsys_state *css);
struct cgroup_subsys_state *bio_blkcg_css(struct bio *bio);
#else /* CONFIG_BLK_CGROUP */
#define blkcg_root_css ((struct cgroup_subsys_state *)ERR_PTR(-EINVAL))
static inline void blkcg_maybe_throttle_current(void ) { }
static inline bool blk_cgroup_congested(void ) { return false ; }
static inline struct cgroup_subsys_state *bio_blkcg_css(struct bio *bio)
{
return NULL;
}
#endif /* CONFIG_BLK_CGROUP */
int blkcg_set_fc_appid(char *app_id, u64 cgrp_id, size_t app_id_len);
char *blkcg_get_fc_appid(struct bio *bio);
#endif /* _BLK_CGROUP_H */
Messung V0.5 in Prozent C=89 H=94 G=91
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(vorverarbeitet am 2026-09-27)
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