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()
63 static int linear_mergeable_bvec(struct mddev *mddev,  in linear_mergeable_bvec()  argument
73 	dev0 = which_dev(mddev, sector);  in linear_mergeable_bvec()
97 static int linear_congested(struct mddev *mddev, int bits)  in linear_congested()  argument
102 	conf = mddev->private;  in linear_congested()
104 	for (i = 0; i < mddev->raid_disks && !ret ; i++) {  in linear_congested()
112 static sector_t linear_size(struct mddev *mddev, sector_t sectors, int raid_disks)  in linear_size()  argument
117 	conf = mddev->private;  in linear_size()
125 static struct linear_conf *linear_conf(struct mddev *mddev, int raid_disks)  in linear_conf()  argument
140 	rdev_for_each(rdev, mddev) {  in linear_conf()
147 			       mdname(mddev));  in linear_conf()
152 		if (mddev->chunk_sectors) {  in linear_conf()
154 			sector_div(sectors, mddev->chunk_sectors);  in linear_conf()
155 			rdev->sectors = sectors * mddev->chunk_sectors;  in linear_conf()
158 		disk_stack_limits(mddev->gendisk, rdev->bdev,  in linear_conf()
169 		       mdname(mddev));  in linear_conf()
174 		queue_flag_clear_unlocked(QUEUE_FLAG_DISCARD, mddev->queue);  in linear_conf()
176 		queue_flag_set_unlocked(QUEUE_FLAG_DISCARD, mddev->queue);  in linear_conf()
195 static int linear_run (struct mddev *mddev)  in linear_run()  argument
200 	if (md_check_no_bitmap(mddev))  in linear_run()
202 	conf = linear_conf(mddev, mddev->raid_disks);  in linear_run()
206 	mddev->private = conf;  in linear_run()
207 	md_set_array_sectors(mddev, linear_size(mddev, 0, 0));  in linear_run()
209 	ret =  md_integrity_register(mddev);  in linear_run()
212 		mddev->private = NULL;  in linear_run()
217 static int linear_add(struct mddev *mddev, struct md_rdev *rdev)  in linear_add()  argument
229 	if (rdev->saved_raid_disk != mddev->raid_disks)  in linear_add()
235 	newconf = linear_conf(mddev,mddev->raid_disks+1);  in linear_add()
240 	mddev_suspend(mddev);  in linear_add()
241 	oldconf = mddev->private;  in linear_add()
242 	mddev->raid_disks++;  in linear_add()
243 	mddev->private = newconf;  in linear_add()
244 	md_set_array_sectors(mddev, linear_size(mddev, 0, 0));  in linear_add()
245 	set_capacity(mddev->gendisk, mddev->array_sectors);  in linear_add()
246 	mddev_resume(mddev);  in linear_add()
247 	revalidate_disk(mddev->gendisk);  in linear_add()
252 static void linear_free(struct mddev *mddev, void *priv)  in linear_free()  argument
259 static void linear_make_request(struct mddev *mddev, struct bio *bio)  in linear_make_request()  argument
267 		md_flush_request(mddev, bio);  in linear_make_request()
272 		tmp_dev = which_dev(mddev, bio->bi_iter.bi_sector);  in linear_make_request()
310 	       mdname(mddev),  in linear_make_request()
318 static void linear_status (struct seq_file *seq, struct mddev *mddev)  in linear_status()  argument
321 	seq_printf(seq, " %dk rounding", mddev->chunk_sectors / 2);  in linear_status()
324 static void linear_quiesce(struct mddev *mddev, int state)  in linear_quiesce()  argument