nvme: merge nvme_keep_alive into nvme_keep_alive_work

Merge nvme_keep_alive into its only caller to prepare for additional
changes to this code.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Reviewed-by: Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: Daniel Wagner <dwagner@suse.de>

diff --git a/drivers/nvme/host/core.c b/drivers/nvme/host/core.c
index a565389..45d510a 100644 (file)
--- a/drivers/nvme/host/core.c
+++ b/drivers/nvme/host/core.c
@@ -1226,28 +1226,12 @@ static void nvme_keep_alive_end_io(struct request *rq, blk_status_t status)
                queue_delayed_work(nvme_wq, &ctrl->ka_work, ctrl->kato * HZ);
 }
 
-static int nvme_keep_alive(struct nvme_ctrl *ctrl)
-{
-       struct request *rq;
-
-       rq = nvme_alloc_request(ctrl->admin_q, &ctrl->ka_cmd,
-                       BLK_MQ_REQ_RESERVED);
-       if (IS_ERR(rq))
-               return PTR_ERR(rq);
-
-       rq->timeout = ctrl->kato * HZ;
-       rq->end_io_data = ctrl;
-
-       blk_execute_rq_nowait(NULL, rq, 0, nvme_keep_alive_end_io);
-
-       return 0;
-}
-
 static void nvme_keep_alive_work(struct work_struct *work)
 {
        struct nvme_ctrl *ctrl = container_of(to_delayed_work(work),
                        struct nvme_ctrl, ka_work);
        bool comp_seen = ctrl->comp_seen;
+       struct request *rq;
 
        if ((ctrl->ctratt & NVME_CTRL_ATTR_TBKAS) && comp_seen) {
                dev_dbg(ctrl->device,
@@ -1257,12 +1241,18 @@ static void nvme_keep_alive_work(struct work_struct *work)
                return;
        }
 
-       if (nvme_keep_alive(ctrl)) {
+       rq = nvme_alloc_request(ctrl->admin_q, &ctrl->ka_cmd,
+                               BLK_MQ_REQ_RESERVED);
+       if (IS_ERR(rq)) {
                /* allocation failure, reset the controller */
                dev_err(ctrl->device, "keep-alive failed\n");
                nvme_reset_ctrl(ctrl);
                return;
        }
+
+       rq->timeout = ctrl->kato * HZ;
+       rq->end_io_data = ctrl;
+       blk_execute_rq_nowait(NULL, rq, 0, nvme_keep_alive_end_io);
 }
 
 static void nvme_start_keep_alive(struct nvme_ctrl *ctrl)