drivers/lightnvm/pblk.h

257 struct pblk_rl {  struct
258 	unsigned int high;	/* Upper threshold for rate limiter (free run -
261 	unsigned int high_pw;	/* High rounded up as a power of 2 */
266 	int rb_windows_pw;	/* Number of rate windows in the write buffer
274 	int rb_budget;		/* Total number of entries available for I/O */
275 	int rb_user_max;	/* Max buffer entries available for user I/O */
276 	int rb_gc_max;		/* Max buffer entries available for GC I/O */
277 	int rb_gc_rsv;		/* Reserved buffer entries for GC I/O */
278 	int rb_state;		/* Rate-limiter current state */
279 	int rb_max_io;		/* Maximum size for an I/O giving the config */
281 	atomic_t rb_user_cnt;	/* User I/O buffer counter */
282 	atomic_t rb_gc_cnt;	/* GC I/O buffer counter */
283 	atomic_t rb_space;	/* Space limit in case of reaching capacity */
285 	int rsv_blocks;		/* Reserved blocks for GC */
287 	int rb_user_active;
288 	int rb_gc_active;
290 	atomic_t werr_lines;	/* Number of write error lines that needs gc */
292 	struct timer_list u_timer;
294 	unsigned long total_blocks;
296 	atomic_t free_blocks;		/* Total number of free blocks (+ OP) */
297 	atomic_t free_user_blocks;	/* Number of user free blocks (no OP) */