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-rw-r--r--drivers/nvme/host/core.c14
1 files changed, 8 insertions, 6 deletions
diff --git a/drivers/nvme/host/core.c b/drivers/nvme/host/core.c
index 120fb593d1da..22c68e3b71d5 100644
--- a/drivers/nvme/host/core.c
+++ b/drivers/nvme/host/core.c
@@ -3344,6 +3344,14 @@ static void nvme_ns_remove(struct nvme_ns *ns)
return;
nvme_fault_inject_fini(ns);
+
+ mutex_lock(&ns->ctrl->subsys->lock);
+ list_del_rcu(&ns->siblings);
+ mutex_unlock(&ns->ctrl->subsys->lock);
+ synchronize_rcu(); /* guarantee not available in head->list */
+ nvme_mpath_clear_current_path(ns);
+ synchronize_srcu(&ns->head->srcu); /* wait for concurrent submissions */
+
if (ns->disk && ns->disk->flags & GENHD_FL_UP) {
del_gendisk(ns->disk);
blk_cleanup_queue(ns->queue);
@@ -3351,16 +3359,10 @@ static void nvme_ns_remove(struct nvme_ns *ns)
blk_integrity_unregister(ns->disk);
}
- mutex_lock(&ns->ctrl->subsys->lock);
- list_del_rcu(&ns->siblings);
- nvme_mpath_clear_current_path(ns);
- mutex_unlock(&ns->ctrl->subsys->lock);
-
down_write(&ns->ctrl->namespaces_rwsem);
list_del_init(&ns->list);
up_write(&ns->ctrl->namespaces_rwsem);
- synchronize_srcu(&ns->head->srcu);
nvme_mpath_check_last_path(ns);
nvme_put_ns(ns);
}