62 	struct mddev *mddev = mp_bh->mddev;  in multipath_reschedule_retry()  local
63 	struct mpconf *conf = mddev->private;  in multipath_reschedule_retry()
68 	md_wakeup_thread(mddev->thread);  in multipath_reschedule_retry()
79 	struct mpconf *conf = mp_bh->mddev->private;  in multipath_end_bh_io()
89 	struct mpconf *conf = mp_bh->mddev->private;  in multipath_end_request()
99 		md_error (mp_bh->mddev, rdev);  in multipath_end_request()
106 	rdev_dec_pending(rdev, conf->mddev);  in multipath_end_request()
109 static bool multipath_make_request(struct mddev *mddev, struct bio * bio)  in multipath_make_request()  argument
111 	struct mpconf *conf = mddev->private;  in multipath_make_request()
116 		md_flush_request(mddev, bio);  in multipath_make_request()
123 	mp_bh->mddev = mddev;  in multipath_make_request()
141 	mddev_check_writesame(mddev, &mp_bh->bio);  in multipath_make_request()
142 	mddev_check_write_zeroes(mddev, &mp_bh->bio);  in multipath_make_request()
147 static void multipath_status(struct seq_file *seq, struct mddev *mddev)  in multipath_status()  argument
149 	struct mpconf *conf = mddev->private;  in multipath_status()
153 		    conf->raid_disks - mddev->degraded);  in multipath_status()
163 static int multipath_congested(struct mddev *mddev, int bits)  in multipath_congested()  argument
165 	struct mpconf *conf = mddev->private;  in multipath_congested()
169 	for (i = 0; i < mddev->raid_disks ; i++) {  in multipath_congested()
188 static void multipath_error (struct mddev *mddev, struct md_rdev *rdev)  in multipath_error()  argument
190 	struct mpconf *conf = mddev->private;  in multipath_error()
193 	if (conf->raid_disks - mddev->degraded <= 1) {  in multipath_error()
209 		mddev->degraded++;  in multipath_error()
213 	set_bit(MD_SB_CHANGE_DEVS, &mddev->sb_flags);  in multipath_error()
217 	       conf->raid_disks - mddev->degraded);  in multipath_error()
230 	pr_debug(" --- wd:%d rd:%d\n", conf->raid_disks - conf->mddev->degraded,  in print_multipath_conf()
243 static int multipath_add_disk(struct mddev *mddev, struct md_rdev *rdev)  in multipath_add_disk()  argument
245 	struct mpconf *conf = mddev->private;  in multipath_add_disk()
250 	int last = mddev->raid_disks - 1;  in multipath_add_disk()
259 			disk_stack_limits(mddev->gendisk, rdev->bdev,  in multipath_add_disk()
262 			err = md_integrity_add_rdev(rdev, mddev);  in multipath_add_disk()
266 			mddev->degraded--;  in multipath_add_disk()
280 static int multipath_remove_disk(struct mddev *mddev, struct md_rdev *rdev)  in multipath_remove_disk()  argument
282 	struct mpconf *conf = mddev->private;  in multipath_remove_disk()
306 		err = md_integrity_register(mddev);  in multipath_remove_disk()
324 	struct mddev *mddev = thread->mddev;  in multipathd()  local
328 	struct mpconf *conf = mddev->private;  in multipathd()
331 	md_check_recovery(mddev);  in multipathd()
366 static sector_t multipath_size(struct mddev *mddev, sector_t sectors, int raid_disks)  in multipath_size()  argument
371 	return mddev->dev_sectors;  in multipath_size()
374 static int multipath_run (struct mddev *mddev)  in multipath_run()  argument
383 	if (md_check_no_bitmap(mddev))  in multipath_run()
386 	if (mddev->level != LEVEL_MULTIPATH) {  in multipath_run()
388 			mdname(mddev), mddev->level);  in multipath_run()
398 	mddev->private = conf;  in multipath_run()
402 	conf->multipaths = kcalloc(mddev->raid_disks,  in multipath_run()
409 	rdev_for_each(rdev, mddev) {  in multipath_run()
412 		    disk_idx >= mddev->raid_disks)  in multipath_run()
417 		disk_stack_limits(mddev->gendisk, rdev->bdev,  in multipath_run()
424 	conf->raid_disks = mddev->raid_disks;  in multipath_run()
425 	conf->mddev = mddev;  in multipath_run()
431 			mdname(mddev));  in multipath_run()
434 	mddev->degraded = conf->raid_disks - working_disks;  in multipath_run()
441 	mddev->thread = md_register_thread(multipathd, mddev,  in multipath_run()
443 	if (!mddev->thread)  in multipath_run()
447 		mdname(mddev), conf->raid_disks - mddev->degraded,  in multipath_run()
448 		mddev->raid_disks);  in multipath_run()
452 	md_set_array_sectors(mddev, multipath_size(mddev, 0, 0));  in multipath_run()
454 	if (md_integrity_register(mddev))  in multipath_run()
463 	mddev->private = NULL;  in multipath_run()
468 static void multipath_free(struct mddev *mddev, void *priv)  in multipath_free()  argument