Commit 9157c8d3 authored by Bart Van Assche's avatar Bart Van Assche Committed by Mike Snitzer
Browse files

dm mpath: complain about unsupported __multipath_map_bio() return values 



WARN_ONCE() if __multipath_map_bio() returns an unsupported return value.

Signed-off-by: default avatarBart Van Assche <bart.vanassche@wdc.com>
Reviewed-by: default avatarChristoph Hellwig <hch@lst.de>
Signed-off-by: default avatarMike Snitzer <snitzer@redhat.com>
parent 7b06e09a

drivers/md/dm-mpath.c

+4 −0
Original line number Diff line number Diff line
@@ -632,6 +632,10 @@ static void process_queued_bios(struct work_struct *work) 
		case DM_MAPIO_REMAPPED:

			generic_make_request(bio);

			break;

		case 0:

			break;

		default:

			WARN_ONCE(true, "__multipath_map_bio() returned %d\n", r);

		}

	}

	blk_finish_plug(&plug);