md/bcache/bcache.h

299 struct cached_dev {  struct
300 	struct list_head	list;
301 	struct bcache_device	disk;
302 	struct block_device	*bdev;
304 	struct cache_sb		sb;
305 	struct cache_sb_disk	*sb_disk;
306 	struct bio		sb_bio;
307 	struct bio_vec		sb_bv[1];
308 	struct closure		sb_write;
309 	struct semaphore	sb_write_mutex;
312 	refcount_t		count;
313 	struct work_struct	detach;
319 	atomic_t		running;
325 	struct rw_semaphore	writeback_lock;
332 	atomic_t		has_dirty;
336 	unsigned int		cache_readahead_policy;
337 	struct bch_ratelimit	writeback_rate;
338 	struct delayed_work	writeback_rate_update;
341 	struct semaphore	in_flight;
342 	struct task_struct	*writeback_thread;
343 	struct workqueue_struct	*writeback_write_wq;
345 	struct keybuf		writeback_keys;
347 	struct task_struct	*status_update_thread;
353 	struct closure_waitlist writeback_ordering_wait;
354 	atomic_t		writeback_sequence_next;
359 	struct io		io[RECENT_IO];
360 	struct hlist_head	io_hash[RECENT_IO + 1];
361 	struct list_head	io_lru;
362 	spinlock_t		io_lock;
364 	struct cache_accounting	accounting;
367 	unsigned int		sequential_cutoff;
369 	unsigned int		io_disable:1;
370 	unsigned int		verify:1;
371 	unsigned int		bypass_torture_test:1;
373 	unsigned int		partial_stripes_expensive:1;
374 	unsigned int		writeback_metadata:1;
375 	unsigned int		writeback_running:1;
376 	unsigned int		writeback_consider_fragment:1;
377 	unsigned char		writeback_percent;
378 	unsigned int		writeback_delay;
380 	uint64_t		writeback_rate_target;
381 	int64_t			writeback_rate_proportional;
382 	int64_t			writeback_rate_integral;
383 	int64_t			writeback_rate_integral_scaled;
384 	int32_t			writeback_rate_change;
386 	unsigned int		writeback_rate_update_seconds;
387 	unsigned int		writeback_rate_i_term_inverse;
388 	unsigned int		writeback_rate_p_term_inverse;
389 	unsigned int		writeback_rate_fp_term_low;
390 	unsigned int		writeback_rate_fp_term_mid;
391 	unsigned int		writeback_rate_fp_term_high;
392 	unsigned int		writeback_rate_minimum;
394 	enum stop_on_failure	stop_when_cache_set_failed;
396 	atomic_t		io_errors;
397 	unsigned int		error_limit;
398 	unsigned int		offline_seconds;
405 	unsigned int		rate_update_retry;