295 	ssize_t v;  in STORE()  local
320 		long int v = atomic_long_read(&dc->writeback_rate.rate);  in STORE()  local
322 		ret = strtoul_safe_clamp(buf, v, 1, INT_MAX);  in STORE()
325 			atomic_long_set(&dc->writeback_rate.rate, v);  in STORE()
358 		int v = strtoul_or_return(buf);  in STORE()  local
360 		dc->io_disable = v ? 1 : 0;  in STORE()
372 		v = bch_cached_dev_run(dc);  in STORE()
373 		if (v)  in STORE()
374 			return v;  in STORE()
378 		v = __sysfs_match_string(bch_cache_modes, -1, buf);  in STORE()
379 		if (v < 0)  in STORE()
380 			return v;  in STORE()
382 		if ((unsigned int) v != BDEV_CACHE_MODE(&dc->sb)) {  in STORE()
383 			SET_BDEV_CACHE_MODE(&dc->sb, v);  in STORE()
389 		v = __sysfs_match_string(bch_reada_cache_policies, -1, buf);  in STORE()
390 		if (v < 0)  in STORE()
391 			return v;  in STORE()
393 		if ((unsigned int) v != dc->cache_readahead_policy)  in STORE()
394 			dc->cache_readahead_policy = v;  in STORE()
398 		v = __sysfs_match_string(bch_stop_on_failure_modes, -1, buf);  in STORE()
399 		if (v < 0)  in STORE()
400 			return v;  in STORE()
402 		dc->stop_when_cache_set_failed = v;  in STORE()
437 		v = -ENOENT;  in STORE()
439 			v = bch_cached_dev_attach(dc, c, set_uuid);  in STORE()
440 			if (!v)  in STORE()
443 		if (v == -ENOENT)  in STORE()
445 		return v;  in STORE()
581 		uint64_t v;  in STORE()  local
583 		strtoi_h_or_return(buf, v);  in STORE()
585 		u->sectors = v >> 9;  in STORE()
772 	/* See count_io_errors for why 88 */  in SHOW()
773 	sysfs_print(io_error_halflife,	c->error_decay * 88);  in SHOW()
817 	ssize_t v;  in STORE()  local
840 		uint64_t v;  in STORE()  local
842 		strtoi_h_or_return(buf, v);  in STORE()
844 		r = bch_flash_dev_create(c, v);  in STORE()
877 		v = __sysfs_match_string(error_actions, -1, buf);  in STORE()
878 		if (v < 0)  in STORE()
879 			return v;  in STORE()
881 		c->on_error = v;  in STORE()
886 	/* See count_io_errors() for why 88 */  in STORE()
888 		unsigned long v = 0;  in STORE()  local
891 		ret = strtoul_safe_clamp(buf, v, 0, UINT_MAX);  in STORE()
893 			c->error_decay = v / 88;  in STORE()
900 		v = strtoul_or_return(buf);  in STORE()
901 		if (v) {  in STORE()
1141 	ssize_t v;  in STORE()  local
1148 		bool v = strtoul_or_return(buf);  in STORE()  local
1151 			ca->discard = v;  in STORE()
1153 		if (v != CACHE_DISCARD(&ca->sb)) {  in STORE()
1154 			SET_CACHE_DISCARD(&ca->sb, v);  in STORE()
1160 		v = __sysfs_match_string(cache_replacement_policies, -1, buf);  in STORE()
1161 		if (v < 0)  in STORE()
1162 			return v;  in STORE()
1164 		if ((unsigned int) v != CACHE_REPLACEMENT(&ca->sb)) {  in STORE()
1166 			SET_CACHE_REPLACEMENT(&ca->sb, v);  in STORE()