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#ifndef _BCACHE_REQUEST_H_
#define _BCACHE_REQUEST_H_
#include <linux/cgroup.h>
struct search {
/* Stack frame for bio_complete */
struct closure cl;
struct closure btree;
struct bcache_device *d;
struct cache_set *c;
struct task_struct *task;
struct bbio bio;
struct bio *orig_bio;
struct bio *cache_miss;
/* Bio to be inserted into the cache */
struct bio *cache_bio;
unsigned cache_bio_sectors;
unsigned inode;
unsigned recoverable:1;
unsigned unaligned_bvec:1;
unsigned write:1;
unsigned writeback:1;
unsigned csum:1;
unsigned bypass:1;
unsigned flush_journal:1;
unsigned insert_data_done:1;
unsigned replace:1;
unsigned insert_collision:1;
uint16_t write_prio;
/* IO error returned to s->bio */
short error;
unsigned long start_time;
struct btree_op op;
/* Anything past this point won't get zeroed in search_alloc() */
struct keylist insert_keys;
BKEY_PADDED(replace_key);
};
unsigned bch_get_congested(struct cache_set *);
void bch_data_insert(struct closure *cl);
void bch_open_buckets_free(struct cache_set *);
int bch_open_buckets_alloc(struct cache_set *);
void bch_cached_dev_request_init(struct cached_dev *dc);
void bch_flash_dev_request_init(struct bcache_device *d);
extern struct kmem_cache *bch_search_cache, *bch_passthrough_cache;
struct bch_cgroup {
#ifdef CONFIG_CGROUP_BCACHE
struct cgroup_subsys_state css;
#endif
/*
* We subtract one from the index into bch_cache_modes[], so that
* default == -1; this makes it so the rest match up with d->cache_mode,
* and we use d->cache_mode if cgrp->cache_mode < 0
*/
short cache_mode;
bool verify;
struct cache_stat_collector stats;
};
struct bch_cgroup *bch_bio_to_cgroup(struct bio *bio);
#endif /* _BCACHE_REQUEST_H_ */
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