drivers/md/raid5.c

702 			rdev = READ_ONCE(conf->disks[i].replacement);
727 			rdev = READ_ONCE(conf->disks[i].replacement);
1184 		rbi = &dev->rreq; /* For writing to replacement */
1187 		rrdev = conf->disks[i].replacement;
1211 		 * on the replacement, so we don't to check rrdev.
1317 				 "replacement disc %d\n",
2738 		/* If replacement finished while this request was outstanding,
2739 		 * 'replacement' might be NULL already.
2743 		rdev = conf->disks[i].replacement;
2755 			 * replacement device.  We just fail those on
2787 				"md/raid:%s: read error on replacement device (sector %llu on %pg).\n",
2852 	int replacement = 0;
2860 			rdev = conf->disks[i].replacement;
2862 				replacement = 1;
2864 				/* rdev was removed and 'replacement'
2880 	if (replacement) {
2907 	if (sh->batch_head && bi->bi_status && !replacement)
3761 			rdev = conf->disks[i].replacement;
3782 	rdev = sh->raid_conf->disks[disk_idx].replacement;
4704 		/* Prefer to use the replacement for reads, but only
4707 		rdev = conf->disks[i].replacement;
4763 			/* This flag does not apply to '.replacement'
4776 			/* This flag does not apply to '.replacement'
4787 			struct md_rdev *rdev2 = conf->disks[i].replacement;
4809 				rdev = conf->disks[i].replacement;
5182 		/* Write out to replacement devices where possible */
5305 				rdev = conf->disks[i].replacement;
5470 	rdev = conf->disks[dd_idx].replacement;
7572 			if (disk->replacement)
7574 			RCU_INIT_POINTER(disk->replacement, rdev);
7923 		if (conf->disks[i].replacement &&
7926 			pr_warn("md: cannot handle concurrent replacement and reshape.\n");
8089 	struct md_rdev *rdev, *replacement;
8095 		replacement = conf->disks[i].replacement;
8096 		if (replacement
8097 		    && replacement->recovery_offset == MaxSector
8098 		    && !test_bit(Faulty, &replacement->flags)
8099 		    && !test_and_set_bit(In_sync, &replacement->flags)) {
8113 			sysfs_notify_dirent_safe(replacement->sysfs_state);
8159 	else if (rdev == p->replacement)
8160 		rdevp = &p->replacement;
8179 	    (!p->replacement || p->replacement == rdev) &&
8191 	tmp = p->replacement;
8196 		WRITE_ONCE(p->replacement, NULL);
8276 		    p->replacement == NULL) {
8282 			WRITE_ONCE(p->replacement, rdev);
8415 		if (conf->disks[i].replacement)
8568 				rdev = conf->disks[d].replacement;