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()
110 	md_account_bio(mddev, &bio);  in multipath_make_request()
114 	mp_bh->mddev = mddev;  in multipath_make_request()
130 	mddev_check_write_zeroes(mddev, &mp_bh->bio);  in multipath_make_request()
135 static void multipath_status(struct seq_file *seq, struct mddev *mddev)  in multipath_status()  argument
137 	struct mpconf *conf = mddev->private;  in multipath_status()
141 		    conf->raid_disks - mddev->degraded);  in multipath_status()
154 static void multipath_error (struct mddev *mddev, struct md_rdev *rdev)  in multipath_error()  argument
156 	struct mpconf *conf = mddev->private;  in multipath_error()
158 	if (conf->raid_disks - mddev->degraded <= 1) {  in multipath_error()
174 		mddev->degraded++;  in multipath_error()
178 	set_bit(MD_SB_CHANGE_DEVS, &mddev->sb_flags);  in multipath_error()
182 	       conf->raid_disks - mddev->degraded);  in multipath_error()
195 	pr_debug(" --- wd:%d rd:%d\n", conf->raid_disks - conf->mddev->degraded,  in print_multipath_conf()
207 static int multipath_add_disk(struct mddev *mddev, struct md_rdev *rdev)  in multipath_add_disk()  argument
209 	struct mpconf *conf = mddev->private;  in multipath_add_disk()
214 	int last = mddev->raid_disks - 1;  in multipath_add_disk()
223 			disk_stack_limits(mddev->gendisk, rdev->bdev,  in multipath_add_disk()
226 			err = md_integrity_add_rdev(rdev, mddev);  in multipath_add_disk()
230 			mddev->degraded--;  in multipath_add_disk()
244 static int multipath_remove_disk(struct mddev *mddev, struct md_rdev *rdev)  in multipath_remove_disk()  argument
246 	struct mpconf *conf = mddev->private;  in multipath_remove_disk()
270 		err = md_integrity_register(mddev);  in multipath_remove_disk()
288 	struct mddev *mddev = thread->mddev;  in multipathd()  local
292 	struct mpconf *conf = mddev->private;  in multipathd()
295 	md_check_recovery(mddev);  in multipathd()
329 static sector_t multipath_size(struct mddev *mddev, sector_t sectors, int raid_disks)  in multipath_size()  argument
334 	return mddev->dev_sectors;  in multipath_size()
337 static int multipath_run (struct mddev *mddev)  in multipath_run()  argument
346 	if (md_check_no_bitmap(mddev))  in multipath_run()
349 	if (mddev->level != LEVEL_MULTIPATH) {  in multipath_run()
351 			mdname(mddev), mddev->level);  in multipath_run()
361 	mddev->private = conf;  in multipath_run()
365 	conf->multipaths = kcalloc(mddev->raid_disks,  in multipath_run()
372 	rdev_for_each(rdev, mddev) {  in multipath_run()
375 		    disk_idx >= mddev->raid_disks)  in multipath_run()
380 		disk_stack_limits(mddev->gendisk, rdev->bdev,  in multipath_run()
387 	conf->raid_disks = mddev->raid_disks;  in multipath_run()
388 	conf->mddev = mddev;  in multipath_run()
394 			mdname(mddev));  in multipath_run()
397 	mddev->degraded = conf->raid_disks - working_disks;  in multipath_run()
404 	rcu_assign_pointer(mddev->thread,  in multipath_run()
405 			   md_register_thread(multipathd, mddev, "multipath"));  in multipath_run()
406 	if (!mddev->thread)  in multipath_run()
410 		mdname(mddev), conf->raid_disks - mddev->degraded,  in multipath_run()
411 		mddev->raid_disks);  in multipath_run()
415 	md_set_array_sectors(mddev, multipath_size(mddev, 0, 0));  in multipath_run()
417 	if (md_integrity_register(mddev))  in multipath_run()
426 	mddev->private = NULL;  in multipath_run()
431 static void multipath_free(struct mddev *mddev, void *priv)  in multipath_free()  argument