diff options
Diffstat (limited to 'drivers/md/multipath.c')
| -rw-r--r-- | drivers/md/multipath.c | 23 |
1 files changed, 13 insertions, 10 deletions
diff --git a/drivers/md/multipath.c b/drivers/md/multipath.c index 4ee31aa13c40..cbe368fa6598 100644 --- a/drivers/md/multipath.c +++ b/drivers/md/multipath.c @@ -58,7 +58,7 @@ static void multipath_reschedule_retry (struct multipath_bh *mp_bh) { unsigned long flags; mddev_t *mddev = mp_bh->mddev; - multipath_conf_t *conf = mddev_to_conf(mddev); + multipath_conf_t *conf = mddev->private; spin_lock_irqsave(&conf->device_lock, flags); list_add(&mp_bh->retry_list, &conf->retry_list); @@ -75,7 +75,7 @@ static void multipath_reschedule_retry (struct multipath_bh *mp_bh) static void multipath_end_bh_io (struct multipath_bh *mp_bh, int err) { struct bio *bio = mp_bh->master_bio; - multipath_conf_t *conf = mddev_to_conf(mp_bh->mddev); + multipath_conf_t *conf = mp_bh->mddev->private; bio_endio(bio, err); mempool_free(mp_bh, conf->pool); @@ -85,7 +85,7 @@ static void multipath_end_request(struct bio *bio, int error) { int uptodate = test_bit(BIO_UPTODATE, &bio->bi_flags); struct multipath_bh * mp_bh = (struct multipath_bh *)(bio->bi_private); - multipath_conf_t *conf = mddev_to_conf(mp_bh->mddev); + multipath_conf_t *conf = mp_bh->mddev->private; mdk_rdev_t *rdev = conf->multipaths[mp_bh->path].rdev; if (uptodate) @@ -107,7 +107,7 @@ static void multipath_end_request(struct bio *bio, int error) static void unplug_slaves(mddev_t *mddev) { - multipath_conf_t *conf = mddev_to_conf(mddev); + multipath_conf_t *conf = mddev->private; int i; rcu_read_lock(); @@ -138,7 +138,7 @@ static void multipath_unplug(struct request_queue *q) static int multipath_make_request (struct request_queue *q, struct bio * bio) { mddev_t *mddev = q->queuedata; - multipath_conf_t *conf = mddev_to_conf(mddev); + multipath_conf_t *conf = mddev->private; struct multipath_bh * mp_bh; struct multipath_info *multipath; const int rw = bio_data_dir(bio); @@ -180,7 +180,7 @@ static int multipath_make_request (struct request_queue *q, struct bio * bio) static void multipath_status (struct seq_file *seq, mddev_t *mddev) { - multipath_conf_t *conf = mddev_to_conf(mddev); + multipath_conf_t *conf = mddev->private; int i; seq_printf (seq, " [%d/%d] [", conf->raid_disks, @@ -195,7 +195,7 @@ static void multipath_status (struct seq_file *seq, mddev_t *mddev) static int multipath_congested(void *data, int bits) { mddev_t *mddev = data; - multipath_conf_t *conf = mddev_to_conf(mddev); + multipath_conf_t *conf = mddev->private; int i, ret = 0; rcu_read_lock(); @@ -220,7 +220,7 @@ static int multipath_congested(void *data, int bits) */ static void multipath_error (mddev_t *mddev, mdk_rdev_t *rdev) { - multipath_conf_t *conf = mddev_to_conf(mddev); + multipath_conf_t *conf = mddev->private; if (conf->working_disks <= 1) { /* @@ -367,7 +367,7 @@ static void multipathd (mddev_t *mddev) struct multipath_bh *mp_bh; struct bio *bio; unsigned long flags; - multipath_conf_t *conf = mddev_to_conf(mddev); + multipath_conf_t *conf = mddev->private; struct list_head *head = &conf->retry_list; md_check_recovery(mddev); @@ -421,6 +421,9 @@ static int multipath_run (mddev_t *mddev) struct multipath_info *disk; mdk_rdev_t *rdev; + if (md_check_no_bitmap(mddev)) + return -EINVAL; + if (mddev->level != LEVEL_MULTIPATH) { printk("multipath: %s: raid level not set to multipath IO (%d)\n", mdname(mddev), mddev->level); @@ -531,7 +534,7 @@ out: static int multipath_stop (mddev_t *mddev) { - multipath_conf_t *conf = mddev_to_conf(mddev); + multipath_conf_t *conf = mddev->private; md_unregister_thread(mddev->thread); mddev->thread = NULL; |