diff options
Diffstat (limited to 'drivers/nvme/host/core.c')
| -rw-r--r-- | drivers/nvme/host/core.c | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/drivers/nvme/host/core.c b/drivers/nvme/host/core.c index 25ec4e585220..9b3b57fef446 100644 --- a/drivers/nvme/host/core.c +++ b/drivers/nvme/host/core.c @@ -2344,6 +2344,53 @@ void nvme_kill_queues(struct nvme_ctrl *ctrl) } EXPORT_SYMBOL_GPL(nvme_kill_queues); +void nvme_unfreeze(struct nvme_ctrl *ctrl) +{ + struct nvme_ns *ns; + + mutex_lock(&ctrl->namespaces_mutex); + list_for_each_entry(ns, &ctrl->namespaces, list) + blk_mq_unfreeze_queue(ns->queue); + mutex_unlock(&ctrl->namespaces_mutex); +} +EXPORT_SYMBOL_GPL(nvme_unfreeze); + +void nvme_wait_freeze_timeout(struct nvme_ctrl *ctrl, long timeout) +{ + struct nvme_ns *ns; + + mutex_lock(&ctrl->namespaces_mutex); + list_for_each_entry(ns, &ctrl->namespaces, list) { + timeout = blk_mq_freeze_queue_wait_timeout(ns->queue, timeout); + if (timeout <= 0) + break; + } + mutex_unlock(&ctrl->namespaces_mutex); +} +EXPORT_SYMBOL_GPL(nvme_wait_freeze_timeout); + +void nvme_wait_freeze(struct nvme_ctrl *ctrl) +{ + struct nvme_ns *ns; + + mutex_lock(&ctrl->namespaces_mutex); + list_for_each_entry(ns, &ctrl->namespaces, list) + blk_mq_freeze_queue_wait(ns->queue); + mutex_unlock(&ctrl->namespaces_mutex); +} +EXPORT_SYMBOL_GPL(nvme_wait_freeze); + +void nvme_start_freeze(struct nvme_ctrl *ctrl) +{ + struct nvme_ns *ns; + + mutex_lock(&ctrl->namespaces_mutex); + list_for_each_entry(ns, &ctrl->namespaces, list) + blk_mq_freeze_queue_start(ns->queue); + mutex_unlock(&ctrl->namespaces_mutex); +} +EXPORT_SYMBOL_GPL(nvme_start_freeze); + void nvme_stop_queues(struct nvme_ctrl *ctrl) { struct nvme_ns *ns; |