diff options
Diffstat (limited to 'drivers/md/dm-mpath.c')
-rw-r--r-- | drivers/md/dm-mpath.c | 19 |
1 files changed, 11 insertions, 8 deletions
diff --git a/drivers/md/dm-mpath.c b/drivers/md/dm-mpath.c index 926a6bcb32c8..3df056b73b66 100644 --- a/drivers/md/dm-mpath.c +++ b/drivers/md/dm-mpath.c | |||
@@ -447,7 +447,7 @@ failed: | |||
447 | * it has been invoked. | 447 | * it has been invoked. |
448 | */ | 448 | */ |
449 | #define dm_report_EIO(m) \ | 449 | #define dm_report_EIO(m) \ |
450 | ({ \ | 450 | do { \ |
451 | struct mapped_device *md = dm_table_get_md((m)->ti->table); \ | 451 | struct mapped_device *md = dm_table_get_md((m)->ti->table); \ |
452 | \ | 452 | \ |
453 | pr_debug("%s: returning EIO; QIFNP = %d; SQIFNP = %d; DNFS = %d\n", \ | 453 | pr_debug("%s: returning EIO; QIFNP = %d; SQIFNP = %d; DNFS = %d\n", \ |
@@ -455,8 +455,7 @@ failed: | |||
455 | test_bit(MPATHF_QUEUE_IF_NO_PATH, &(m)->flags), \ | 455 | test_bit(MPATHF_QUEUE_IF_NO_PATH, &(m)->flags), \ |
456 | test_bit(MPATHF_SAVED_QUEUE_IF_NO_PATH, &(m)->flags), \ | 456 | test_bit(MPATHF_SAVED_QUEUE_IF_NO_PATH, &(m)->flags), \ |
457 | dm_noflush_suspending((m)->ti)); \ | 457 | dm_noflush_suspending((m)->ti)); \ |
458 | -EIO; \ | 458 | } while (0) |
459 | }) | ||
460 | 459 | ||
461 | /* | 460 | /* |
462 | * Map cloned requests (request-based multipath) | 461 | * Map cloned requests (request-based multipath) |
@@ -481,7 +480,8 @@ static int multipath_clone_and_map(struct dm_target *ti, struct request *rq, | |||
481 | if (!pgpath) { | 480 | if (!pgpath) { |
482 | if (test_bit(MPATHF_QUEUE_IF_NO_PATH, &m->flags)) | 481 | if (test_bit(MPATHF_QUEUE_IF_NO_PATH, &m->flags)) |
483 | return DM_MAPIO_DELAY_REQUEUE; | 482 | return DM_MAPIO_DELAY_REQUEUE; |
484 | return dm_report_EIO(m); /* Failed */ | 483 | dm_report_EIO(m); /* Failed */ |
484 | return DM_MAPIO_KILL; | ||
485 | } else if (test_bit(MPATHF_QUEUE_IO, &m->flags) || | 485 | } else if (test_bit(MPATHF_QUEUE_IO, &m->flags) || |
486 | test_bit(MPATHF_PG_INIT_REQUIRED, &m->flags)) { | 486 | test_bit(MPATHF_PG_INIT_REQUIRED, &m->flags)) { |
487 | if (pg_init_all_paths(m)) | 487 | if (pg_init_all_paths(m)) |
@@ -558,7 +558,8 @@ static int __multipath_map_bio(struct multipath *m, struct bio *bio, struct dm_m | |||
558 | if (!pgpath) { | 558 | if (!pgpath) { |
559 | if (test_bit(MPATHF_QUEUE_IF_NO_PATH, &m->flags)) | 559 | if (test_bit(MPATHF_QUEUE_IF_NO_PATH, &m->flags)) |
560 | return DM_MAPIO_REQUEUE; | 560 | return DM_MAPIO_REQUEUE; |
561 | return dm_report_EIO(m); | 561 | dm_report_EIO(m); |
562 | return -EIO; | ||
562 | } | 563 | } |
563 | 564 | ||
564 | mpio->pgpath = pgpath; | 565 | mpio->pgpath = pgpath; |
@@ -1493,7 +1494,7 @@ static int multipath_end_io(struct dm_target *ti, struct request *clone, | |||
1493 | if (atomic_read(&m->nr_valid_paths) == 0 && | 1494 | if (atomic_read(&m->nr_valid_paths) == 0 && |
1494 | !test_bit(MPATHF_QUEUE_IF_NO_PATH, &m->flags)) { | 1495 | !test_bit(MPATHF_QUEUE_IF_NO_PATH, &m->flags)) { |
1495 | if (error == -EIO) | 1496 | if (error == -EIO) |
1496 | error = dm_report_EIO(m); | 1497 | dm_report_EIO(m); |
1497 | /* complete with the original error */ | 1498 | /* complete with the original error */ |
1498 | r = DM_ENDIO_DONE; | 1499 | r = DM_ENDIO_DONE; |
1499 | } | 1500 | } |
@@ -1524,8 +1525,10 @@ static int do_end_io_bio(struct multipath *m, struct bio *clone, | |||
1524 | fail_path(mpio->pgpath); | 1525 | fail_path(mpio->pgpath); |
1525 | 1526 | ||
1526 | if (atomic_read(&m->nr_valid_paths) == 0 && | 1527 | if (atomic_read(&m->nr_valid_paths) == 0 && |
1527 | !test_bit(MPATHF_QUEUE_IF_NO_PATH, &m->flags)) | 1528 | !test_bit(MPATHF_QUEUE_IF_NO_PATH, &m->flags)) { |
1528 | return dm_report_EIO(m); | 1529 | dm_report_EIO(m); |
1530 | return -EIO; | ||
1531 | } | ||
1529 | 1532 | ||
1530 | /* Queue for the daemon to resubmit */ | 1533 | /* Queue for the daemon to resubmit */ |
1531 | dm_bio_restore(get_bio_details_from_bio(clone), clone); | 1534 | dm_bio_restore(get_bio_details_from_bio(clone), clone); |