24 static inline dev_info_t *which_dev(mddev_t *mddev, sector_t sector)  in which_dev()  argument
27 	linear_conf_t *conf = mddev_to_conf(mddev);  in which_dev()
53 	mddev_t *mddev = q->queuedata;  in linear_mergeable_bvec()  local
58 	dev0 = which_dev(mddev, sector);  in linear_mergeable_bvec()
77 	mddev_t *mddev = q->queuedata;  in linear_unplug()  local
78 	linear_conf_t *conf = mddev_to_conf(mddev);  in linear_unplug()
81 	for (i=0; i < mddev->raid_disks; i++) {  in linear_unplug()
89 	mddev_t *mddev = data;  in linear_congested()  local
90 	linear_conf_t *conf = mddev_to_conf(mddev);  in linear_congested()
93 	for (i = 0; i < mddev->raid_disks && !ret ; i++) {  in linear_congested()
100 static linear_conf_t *linear_conf(mddev_t *mddev, int raid_disks)  in linear_conf()  argument
117 	list_for_each_entry(rdev, &mddev->disks, same_set) {  in linear_conf()
128 		blk_queue_stack_limits(mddev->queue,  in linear_conf()
135 		    mddev->queue->max_sectors > (PAGE_SIZE>>9))  in linear_conf()
136 			blk_queue_max_sectors(mddev->queue, PAGE_SIZE>>9);  in linear_conf()
242 static int linear_run (mddev_t *mddev)  in linear_run()  argument
246 	mddev->queue->queue_lock = &mddev->queue->__queue_lock;  in linear_run()
247 	conf = linear_conf(mddev, mddev->raid_disks);  in linear_run()
251 	mddev->private = conf;  in linear_run()
252 	mddev->array_sectors = conf->array_sectors;  in linear_run()
254 	blk_queue_merge_bvec(mddev->queue, linear_mergeable_bvec);  in linear_run()
255 	mddev->queue->unplug_fn = linear_unplug;  in linear_run()
256 	mddev->queue->backing_dev_info.congested_fn = linear_congested;  in linear_run()
257 	mddev->queue->backing_dev_info.congested_data = mddev;  in linear_run()
261 static int linear_add(mddev_t *mddev, mdk_rdev_t *rdev)  in linear_add()  argument
273 	if (rdev->saved_raid_disk != mddev->raid_disks)  in linear_add()
278 	newconf = linear_conf(mddev,mddev->raid_disks+1);  in linear_add()
283 	newconf->prev = mddev_to_conf(mddev);  in linear_add()
284 	mddev->private = newconf;  in linear_add()
285 	mddev->raid_disks++;  in linear_add()
286 	mddev->array_sectors = newconf->array_sectors;  in linear_add()
287 	set_capacity(mddev->gendisk, mddev->array_sectors);  in linear_add()
291 static int linear_stop (mddev_t *mddev)  in linear_stop()  argument
293 	linear_conf_t *conf = mddev_to_conf(mddev);  in linear_stop()
295 	blk_sync_queue(mddev->queue); /* the unplug fn references 'conf'*/  in linear_stop()
309 	mddev_t *mddev = q->queuedata;  in linear_make_request()  local
319 	part_stat_inc(cpu, &mddev->gendisk->part0, ios[rw]);  in linear_make_request()
320 	part_stat_add(cpu, &mddev->gendisk->part0, sectors[rw],  in linear_make_request()
324 	tmp_dev = which_dev(mddev, bio->bi_sector);  in linear_make_request()
367 static void linear_status (struct seq_file *seq, mddev_t *mddev)  in linear_status()  argument
370 	seq_printf(seq, " %dk rounding", mddev->chunk_size/1024);  in linear_status()