drivers/md/bcache/request.h

Source file repositories/reference/linux-study-clean/drivers/md/bcache/request.h

File Facts

System
Linux kernel
Corpus path
drivers/md/bcache/request.h
Extension
.h
Size
997 bytes
Lines
48
Domain
Driver Families
Bucket
drivers/md
Inferred role
Driver Families: implementation source
Status
source implementation candidate

Why This File Exists

Repeatable hardware-adapter layer. Deep compatibility for every driver is out of scope; this atlas records patterns, probe lifecycles, bus glue, IRQ/DMA usage, and links back to core abstractions.

Dependency Surface

Detected Declarations

Annotated Snippet

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

	unsigned int		inode;
	uint16_t		write_point;
	uint16_t		write_prio;
	blk_status_t		status;

	union {
		uint16_t	flags;

	struct {
		unsigned int	bypass:1;
		unsigned int	writeback:1;
		unsigned int	flush_journal:1;
		unsigned int	csum:1;

		unsigned int	replace:1;
		unsigned int	replace_collision:1;

		unsigned int	insert_data_done:1;
	};
	};

	struct keylist		insert_keys;
	BKEY_PADDED(replace_key);
};

unsigned int bch_get_congested(const struct cache_set *c);
CLOSURE_CALLBACK(bch_data_insert);

void bch_cached_dev_request_init(struct cached_dev *dc);
void cached_dev_submit_bio(struct bio *bio);

void bch_flash_dev_request_init(struct bcache_device *d);
void flash_dev_submit_bio(struct bio *bio);

extern struct kmem_cache *bch_search_cache;

#endif /* _BCACHE_REQUEST_H_ */

Annotation

Implementation Notes