diff options
Diffstat (limited to 'drivers/md/multipath.c')
| -rw-r--r-- | drivers/md/multipath.c | 38 |
1 files changed, 5 insertions, 33 deletions
diff --git a/drivers/md/multipath.c b/drivers/md/multipath.c index 3a62d440e27b..c35890990985 100644 --- a/drivers/md/multipath.c +++ b/drivers/md/multipath.c @@ -106,36 +106,6 @@ static void multipath_end_request(struct bio *bio, int error) rdev_dec_pending(rdev, conf->mddev); } -static void unplug_slaves(mddev_t *mddev) -{ - multipath_conf_t *conf = mddev->private; - int i; - - rcu_read_lock(); - for (i=0; i<mddev->raid_disks; i++) { - mdk_rdev_t *rdev = rcu_dereference(conf->multipaths[i].rdev); - if (rdev && !test_bit(Faulty, &rdev->flags) - && atomic_read(&rdev->nr_pending)) { - struct request_queue *r_queue = bdev_get_queue(rdev->bdev); - - atomic_inc(&rdev->nr_pending); - rcu_read_unlock(); - - blk_unplug(r_queue); - - rdev_dec_pending(rdev, mddev); - rcu_read_lock(); - } - } - rcu_read_unlock(); -} - -static void multipath_unplug(struct request_queue *q) -{ - unplug_slaves(q->queuedata); -} - - static int multipath_make_request(mddev_t *mddev, struct bio * bio) { multipath_conf_t *conf = mddev->private; @@ -345,7 +315,7 @@ static int multipath_remove_disk(mddev_t *mddev, int number) p->rdev = rdev; goto abort; } - md_integrity_register(mddev); + err = md_integrity_register(mddev); } abort: @@ -517,10 +487,12 @@ static int multipath_run (mddev_t *mddev) */ md_set_array_sectors(mddev, multipath_size(mddev, 0, 0)); - mddev->queue->unplug_fn = multipath_unplug; mddev->queue->backing_dev_info.congested_fn = multipath_congested; mddev->queue->backing_dev_info.congested_data = mddev; - md_integrity_register(mddev); + + if (md_integrity_register(mddev)) + goto out_free_conf; + return 0; out_free_conf: |