30 static inline struct dev_info *which_dev(struct mddev *mddev, sector_t sector)  in which_dev()  argument
36 	hi = mddev->raid_disks - 1;  in which_dev()
37 	conf = mddev->private;  in which_dev()
55 static int linear_congested(struct mddev *mddev, int bits)  in linear_congested()  argument
60 	conf = mddev->private;  in linear_congested()
62 	for (i = 0; i < mddev->raid_disks && !ret ; i++) {  in linear_congested()
70 static sector_t linear_size(struct mddev *mddev, sector_t sectors, int raid_disks)  in linear_size()  argument
75 	conf = mddev->private;  in linear_size()
83 static struct linear_conf *linear_conf(struct mddev *mddev, int raid_disks)  in linear_conf()  argument
98 	rdev_for_each(rdev, mddev) {  in linear_conf()
105 			       mdname(mddev));  in linear_conf()
110 		if (mddev->chunk_sectors) {  in linear_conf()
112 			sector_div(sectors, mddev->chunk_sectors);  in linear_conf()
113 			rdev->sectors = sectors * mddev->chunk_sectors;  in linear_conf()
116 		disk_stack_limits(mddev->gendisk, rdev->bdev,  in linear_conf()
127 		       mdname(mddev));  in linear_conf()
132 		queue_flag_clear_unlocked(QUEUE_FLAG_DISCARD, mddev->queue);  in linear_conf()
134 		queue_flag_set_unlocked(QUEUE_FLAG_DISCARD, mddev->queue);  in linear_conf()
153 static int linear_run (struct mddev *mddev)  in linear_run()  argument
158 	if (md_check_no_bitmap(mddev))  in linear_run()
160 	conf = linear_conf(mddev, mddev->raid_disks);  in linear_run()
164 	mddev->private = conf;  in linear_run()
165 	md_set_array_sectors(mddev, linear_size(mddev, 0, 0));  in linear_run()
167 	ret =  md_integrity_register(mddev);  in linear_run()
170 		mddev->private = NULL;  in linear_run()
175 static int linear_add(struct mddev *mddev, struct md_rdev *rdev)  in linear_add()  argument
187 	if (rdev->saved_raid_disk != mddev->raid_disks)  in linear_add()
193 	newconf = linear_conf(mddev,mddev->raid_disks+1);  in linear_add()
198 	mddev_suspend(mddev);  in linear_add()
199 	oldconf = mddev->private;  in linear_add()
200 	mddev->raid_disks++;  in linear_add()
201 	mddev->private = newconf;  in linear_add()
202 	md_set_array_sectors(mddev, linear_size(mddev, 0, 0));  in linear_add()
203 	set_capacity(mddev->gendisk, mddev->array_sectors);  in linear_add()
204 	mddev_resume(mddev);  in linear_add()
205 	revalidate_disk(mddev->gendisk);  in linear_add()
210 static void linear_free(struct mddev *mddev, void *priv)  in linear_free()  argument
217 static void linear_make_request(struct mddev *mddev, struct bio *bio)  in linear_make_request()  argument
225 		md_flush_request(mddev, bio);  in linear_make_request()
230 		tmp_dev = which_dev(mddev, bio->bi_iter.bi_sector);  in linear_make_request()
268 	       mdname(mddev),  in linear_make_request()
276 static void linear_status (struct seq_file *seq, struct mddev *mddev)  in linear_status()  argument
279 	seq_printf(seq, " %dk rounding", mddev->chunk_sectors / 2);  in linear_status()
282 static void linear_quiesce(struct mddev *mddev, int state)  in linear_quiesce()  argument