Commit 9157c8d3 authored Aug 09, 2017 by Bart Van Assche Committed by Mike Snitzer Aug 28, 2017

dm mpath: complain about unsupported __multipath_map_bio() return values



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

Signed-off-by: Bart Van Assche <bart.vanassche@wdc.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Mike 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);