diff options
Diffstat (limited to 'drivers/nvme/host/multipath.c')
| -rw-r--r-- | drivers/nvme/host/multipath.c | 18 |
1 files changed, 14 insertions, 4 deletions
diff --git a/drivers/nvme/host/multipath.c b/drivers/nvme/host/multipath.c index 91d9eb3c22ef..48e7a8906d01 100644 --- a/drivers/nvme/host/multipath.c +++ b/drivers/nvme/host/multipath.c @@ -421,6 +421,9 @@ static bool nvme_available_path(struct nvme_ns_head *head) { struct nvme_ns *ns; + if (!test_bit(NVME_NSHEAD_DISK_LIVE, &head->flags)) + return NULL; + list_for_each_entry_rcu(ns, &head->list, siblings) { if (test_bit(NVME_CTRL_FAILFAST_EXPIRED, &ns->ctrl->flags)) continue; @@ -616,7 +619,9 @@ int nvme_mpath_alloc_disk(struct nvme_ctrl *ctrl, struct nvme_ns_head *head) blk_set_stacking_limits(&lim); lim.dma_alignment = 3; lim.features |= BLK_FEAT_IO_STAT | BLK_FEAT_NOWAIT | BLK_FEAT_POLL; - if (head->ids.csi != NVME_CSI_ZNS) + if (head->ids.csi == NVME_CSI_ZNS) + lim.features |= BLK_FEAT_ZONED; + else lim.max_zone_append_sectors = 0; head->disk = blk_alloc_disk(&lim, ctrl->numa_node); @@ -646,7 +651,7 @@ static void nvme_mpath_set_live(struct nvme_ns *ns) rc = device_add_disk(&head->subsys->dev, head->disk, nvme_ns_attr_groups); if (rc) { - clear_bit(NVME_NSHEAD_DISK_LIVE, &ns->flags); + clear_bit(NVME_NSHEAD_DISK_LIVE, &head->flags); return; } nvme_add_ns_head_cdev(head); @@ -967,11 +972,16 @@ void nvme_mpath_shutdown_disk(struct nvme_ns_head *head) { if (!head->disk) return; - kblockd_schedule_work(&head->requeue_work); - if (test_bit(NVME_NSHEAD_DISK_LIVE, &head->flags)) { + if (test_and_clear_bit(NVME_NSHEAD_DISK_LIVE, &head->flags)) { nvme_cdev_del(&head->cdev, &head->cdev_device); del_gendisk(head->disk); } + /* + * requeue I/O after NVME_NSHEAD_DISK_LIVE has been cleared + * to allow multipath to fail all I/O. + */ + synchronize_srcu(&head->srcu); + kblockd_schedule_work(&head->requeue_work); } void nvme_mpath_remove_disk(struct nvme_ns_head *head) |