From: Chao Leng <lengchao@huawei.com> mainline inclusion from mainline-v5.10-rc3 commit 04800fbff4764ab7b32c49d19628605a5d4cb85c category: bugfix bugzilla: NA CVE: NA Link: https://gitee.com/openeuler/kernel/issues/I1WGZE ------------------------------------------------- Introduce sync io queues for some scenarios which just only need sync io queues not sync all queues. Signed-off-by: Chao Leng <lengchao@huawei.com> Reviewed-by: Sagi Grimberg <sagi@grimberg.me> Reviewed-by: Jike Cheng <chengjike.cheng@huawei.com> Signed-off-by: Ruozhu Li <liruozhu@huawei.com> Signed-off-by: Lijie <lijie34@huawei.com> Acked-by: Hanjun Guo <guohanjun@huawei.com> Signed-off-by: Yang Yingliang <yangyingliang@huawei.com> --- drivers/nvme/host/core.c | 11 +++++++++++ drivers/nvme/host/nvme.h | 1 + 2 files changed, 12 insertions(+) diff --git a/drivers/nvme/host/core.c b/drivers/nvme/host/core.c index 60b42d778007..8443c6c5c5af 100644 --- a/drivers/nvme/host/core.c +++ b/drivers/nvme/host/core.c @@ -3923,6 +3923,17 @@ void nvme_start_queues(struct nvme_ctrl *ctrl) } EXPORT_SYMBOL_GPL(nvme_start_queues); +void nvme_sync_io_queues(struct nvme_ctrl *ctrl) +{ + struct nvme_ns *ns; + + down_read(&ctrl->namespaces_rwsem); + list_for_each_entry(ns, &ctrl->namespaces, list) + blk_sync_queue(ns->queue); + up_read(&ctrl->namespaces_rwsem); +} +EXPORT_SYMBOL_GPL(nvme_sync_io_queues); + int __init nvme_core_init(void) { int result = -ENOMEM; diff --git a/drivers/nvme/host/nvme.h b/drivers/nvme/host/nvme.h index 9516b1e129d9..5699397d3a5d 100644 --- a/drivers/nvme/host/nvme.h +++ b/drivers/nvme/host/nvme.h @@ -440,6 +440,7 @@ void nvme_complete_async_event(struct nvme_ctrl *ctrl, __le16 status, void nvme_stop_queues(struct nvme_ctrl *ctrl); void nvme_start_queues(struct nvme_ctrl *ctrl); void nvme_kill_queues(struct nvme_ctrl *ctrl); +void nvme_sync_io_queues(struct nvme_ctrl *ctrl); void nvme_unfreeze(struct nvme_ctrl *ctrl); void nvme_wait_freeze(struct nvme_ctrl *ctrl); void nvme_wait_freeze_timeout(struct nvme_ctrl *ctrl, long timeout); -- 2.25.1