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@xxxxxxxxxx> --- drivers/md/dm-mpath.c | 11 +---------- 1 files changed, 1 insertions(+), 10 deletions(-) diff --git a/drivers/md/dm-mpath.c b/drivers/md/dm-mpath.c index 487ecda..071529a 100644 --- a/drivers/md/dm-mpath.c +++ b/drivers/md/dm-mpath.c @@ -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) -- 1.7.2.3 -- dm-devel mailing list dm-devel@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/dm-devel
