@@ -1270,16 +1270,7 @@ static int do_end_io(struct multipath *m, struct request *clone,
if (!error && !clone->errors)
return 0; /* I/O complete */
- 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).
- */
+ if (error == -EOPNOTSUPP || error == -EREMOTEIO)
return error;
if (mpio->pgpath)
DM now has more information about the nature of the underlying storage failure. Path failure is avoided if a request failed due to a target error. Instead the target error is immediately passed up the stack. Discard requests that fail due to non-target errors may now be retried. Signed-off-by: Mike Snitzer <snitzer@redhat.com> --- drivers/md/dm-mpath.c | 11 +---------- 1 files changed, 1 insertions(+), 10 deletions(-)