[deliverable/linux.git] / drivers / md / bcache / request.h

#ifndef _BCACHE_REQUEST_H_
#define _BCACHE_REQUEST_H_

#include <linux/cgroup.h>

struct data_insert_op {
	struct closure		cl;
	struct cache_set	*c;
	struct bio		*bio;

	unsigned		inode;
	uint16_t		write_point;
	uint16_t		write_prio;
	short			error;

	unsigned		bypass:1;
	unsigned		writeback:1;
	unsigned		flush_journal:1;
	unsigned		csum:1;

	unsigned		replace:1;
	unsigned		replace_collision:1;

	unsigned		insert_data_done:1;

	/* 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_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_ */
Commit	Line	Data
cafe5635 KO	1	#ifndef _BCACHE_REQUEST_H_
	2	#define _BCACHE_REQUEST_H_
	3
	4	#include <linux/cgroup.h>
	5
220bb38c	6	struct data_insert_op {
cafe5635	7	struct closure cl;
c18536a7	8	struct cache_set *c;
220bb38c	9	struct bio *bio;
cafe5635	10
c18536a7	11	unsigned inode;
2599b53b	12	uint16_t write_point;
220bb38c KO	13	uint16_t write_prio;
220bb38c KO	14	short error;
c18536a7	15
c18536a7	16	unsigned bypass:1;
220bb38c	17	unsigned writeback:1;
c18536a7	18	unsigned flush_journal:1;
220bb38c	19	unsigned csum:1;
c18536a7	20
1b207d80	21	unsigned replace:1;
220bb38c	22	unsigned replace_collision:1;
cafe5635	23
220bb38c	24	unsigned insert_data_done:1;
0b93207a KO	25
	26	/* Anything past this point won't get zeroed in search_alloc() */
	27	struct keylist insert_keys;
1b207d80	28	BKEY_PADDED(replace_key);
cafe5635 KO	29	};
cafe5635 KO	30
c37511b8	31	unsigned bch_get_congested(struct cache_set *);
a34a8bfd	32	void bch_data_insert(struct closure *cl);
cafe5635	33
cafe5635 KO	34	void bch_cached_dev_request_init(struct cached_dev *dc);
	35	void bch_flash_dev_request_init(struct bcache_device *d);
	36
	37	extern struct kmem_cache bch_search_cache, bch_passthrough_cache;
	38
	39	struct bch_cgroup {
	40	#ifdef CONFIG_CGROUP_BCACHE
	41	struct cgroup_subsys_state css;
	42	#endif
	43	/*
	44	* We subtract one from the index into bch_cache_modes[], so that
	45	* default == -1; this makes it so the rest match up with d->cache_mode,
	46	* and we use d->cache_mode if cgrp->cache_mode < 0
	47	*/
	48	short cache_mode;
	49	bool verify;
	50	struct cache_stat_collector stats;
	51	};
	52
	53	struct bch_cgroup bch_bio_to_cgroup(struct bio bio);
	54
	55	#endif /* _BCACHE_REQUEST_H_ */