The only behavior change introduced by this patch is that WARN_ON_ONCE() is called if __multipath_map_bio() would return an unsupported return value. Signed-off-by: Bart Van Assche <bart.vanassche@xxxxxxx> Cc: Christoph Hellwig <hch@xxxxxx> Cc: Laurence Oberman <loberman@xxxxxxxxxx> --- drivers/md/dm-mpath.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/drivers/md/dm-mpath.c b/drivers/md/dm-mpath.c index 6e20deac4add..f2ffa20c69b9 100644 --- a/drivers/md/dm-mpath.c +++ b/drivers/md/dm-mpath.c @@ -632,6 +632,11 @@ 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); -- 2.13.3 -- dm-devel mailing list dm-devel@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/dm-devel
