diff options
| -rw-r--r-- | drivers/md/dm-mpath.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/md/dm-mpath.c b/drivers/md/dm-mpath.c index da2223aa727f..487ecda90ad4 100644 --- a/drivers/md/dm-mpath.c +++ b/drivers/md/dm-mpath.c @@ -893,6 +893,7 @@ static int multipath_ctr(struct dm_target *ti, unsigned int argc, } ti->num_flush_requests = 1; + ti->num_discard_requests = 1; return 0; @@ -1272,6 +1273,15 @@ static int do_end_io(struct multipath *m, struct request *clone, if (error == -EOPNOTSUPP) return error; + if (clone->cmd_flags & REQ_DISCARD) + /* + * Pass all discard request failures up. + * FIXME: only fail_path if the discard failed due to a + * transport problem. This requires precise understanding + * of the underlying failure (e.g. the SCSI sense). + */ + return error; + if (mpio->pgpath) fail_path(mpio->pgpath); |