54 	struct mddev *mddev = mp_bh->mddev;  in multipath_reschedule_retry()  local
55 	struct mpconf *conf = mddev->private;  in multipath_reschedule_retry()
60 	md_wakeup_thread(mddev->thread);  in multipath_reschedule_retry()
71 	struct mpconf *conf = mp_bh->mddev->private;  in multipath_end_bh_io()
81 	struct mpconf *conf = mp_bh->mddev->private;  in multipath_end_request()
90 		md_error (mp_bh->mddev, rdev);  in multipath_end_request()
97 	rdev_dec_pending(rdev, conf->mddev);  in multipath_end_request()
100 static bool multipath_make_request(struct mddev *mddev, struct bio * bio)  in multipath_make_request()  argument
102 	struct mpconf *conf = mddev->private;  in multipath_make_request()
107 	    && md_flush_request(mddev, bio))  in multipath_make_request()
113 	mp_bh->mddev = mddev;  in multipath_make_request()
129 	mddev_check_write_zeroes(mddev, &mp_bh->bio);  in multipath_make_request()
134 static void multipath_status(struct seq_file *seq, struct mddev *mddev)  in multipath_status()  argument
136 	struct mpconf *conf = mddev->private;  in multipath_status()
140 		    conf->raid_disks - mddev->degraded);  in multipath_status()
153 static void multipath_error (struct mddev *mddev, struct md_rdev *rdev)  in multipath_error()  argument
155 	struct mpconf *conf = mddev->private;  in multipath_error()
157 	if (conf->raid_disks - mddev->degraded <= 1) {  in multipath_error()
173 		mddev->degraded++;  in multipath_error()
177 	set_bit(MD_SB_CHANGE_DEVS, &mddev->sb_flags);  in multipath_error()
181 	       conf->raid_disks - mddev->degraded);  in multipath_error()
194 	pr_debug(" --- wd:%d rd:%d\n", conf->raid_disks - conf->mddev->degraded,  in print_multipath_conf()
206 static int multipath_add_disk(struct mddev *mddev, struct md_rdev *rdev)  in multipath_add_disk()  argument
208 	struct mpconf *conf = mddev->private;  in multipath_add_disk()
213 	int last = mddev->raid_disks - 1;  in multipath_add_disk()
222 			disk_stack_limits(mddev->gendisk, rdev->bdev,  in multipath_add_disk()
225 			err = md_integrity_add_rdev(rdev, mddev);  in multipath_add_disk()
229 			mddev->degraded--;  in multipath_add_disk()
243 static int multipath_remove_disk(struct mddev *mddev, struct md_rdev *rdev)  in multipath_remove_disk()  argument
245 	struct mpconf *conf = mddev->private;  in multipath_remove_disk()
269 		err = md_integrity_register(mddev);  in multipath_remove_disk()
287 	struct mddev *mddev = thread->mddev;  in multipathd()  local
291 	struct mpconf *conf = mddev->private;  in multipathd()
294 	md_check_recovery(mddev);  in multipathd()
328 static sector_t multipath_size(struct mddev *mddev, sector_t sectors, int raid_disks)  in multipath_size()  argument
333 	return mddev->dev_sectors;  in multipath_size()
336 static int multipath_run (struct mddev *mddev)  in multipath_run()  argument
345 	if (md_check_no_bitmap(mddev))  in multipath_run()
348 	if (mddev->level != LEVEL_MULTIPATH) {  in multipath_run()
350 			mdname(mddev), mddev->level);  in multipath_run()
360 	mddev->private = conf;  in multipath_run()
364 	conf->multipaths = kcalloc(mddev->raid_disks,  in multipath_run()
371 	rdev_for_each(rdev, mddev) {  in multipath_run()
374 		    disk_idx >= mddev->raid_disks)  in multipath_run()
379 		disk_stack_limits(mddev->gendisk, rdev->bdev,  in multipath_run()
386 	conf->raid_disks = mddev->raid_disks;  in multipath_run()
387 	conf->mddev = mddev;  in multipath_run()
393 			mdname(mddev));  in multipath_run()
396 	mddev->degraded = conf->raid_disks - working_disks;  in multipath_run()
403 	mddev->thread = md_register_thread(multipathd, mddev,  in multipath_run()
405 	if (!mddev->thread)  in multipath_run()
409 		mdname(mddev), conf->raid_disks - mddev->degraded,  in multipath_run()
410 		mddev->raid_disks);  in multipath_run()
414 	md_set_array_sectors(mddev, multipath_size(mddev, 0, 0));  in multipath_run()
416 	if (md_integrity_register(mddev))  in multipath_run()
425 	mddev->private = NULL;  in multipath_run()
430 static void multipath_free(struct mddev *mddev, void *priv)  in multipath_free()  argument