diff --git a/drivers/nvme/host/tcp.c b/drivers/nvme/host/tcp.c
index 0b2ac150b675..1d303e54e13e 100644
--- a/drivers/nvme/host/tcp.c
+++ b/drivers/nvme/host/tcp.c
@@ -108,6 +108,7 @@ struct nvme_tcp_queue {
 
 	struct mutex		queue_lock;
 	struct mutex		send_mutex;
+	struct mutex		pf_cache_lock;
 	struct llist_head	req_list;
 	struct list_head	send_list;
 
@@ -552,9 +553,11 @@ static int nvme_tcp_init_request(struct blk_mq_tag_set *set,
 	struct nvme_tcp_queue *queue = &ctrl->queues[queue_idx];
 	u8 hdgst = nvme_tcp_hdgst_len(queue);
 
+	mutex_lock(&queue->pf_cache_lock);
 	req->pdu = page_frag_alloc(&queue->pf_cache,
 		sizeof(struct nvme_tcp_cmd_pdu) + hdgst,
 		GFP_KERNEL | __GFP_ZERO);
+	mutex_unlock(&queue->pf_cache_lock);
 	if (!req->pdu)
 		return -ENOMEM;
 
@@ -1419,9 +1422,11 @@ static int nvme_tcp_alloc_async_req(struct nvme_tcp_ctrl *ctrl)
 	struct nvme_tcp_request *async = &ctrl->async_req;
 	u8 hdgst = nvme_tcp_hdgst_len(queue);
 
+	mutex_lock(&queue->pf_cache_lock);
 	async->pdu = page_frag_alloc(&queue->pf_cache,
 		sizeof(struct nvme_tcp_cmd_pdu) + hdgst,
 		GFP_KERNEL | __GFP_ZERO);
+	mutex_unlock(&queue->pf_cache_lock);
 	if (!async->pdu)
 		return -ENOMEM;
 
@@ -1463,6 +1468,7 @@ static void nvme_tcp_free_queue(struct nvme_ctrl *nctrl, int qid)
 	kfree(queue->pdu);
 	mutex_destroy(&queue->send_mutex);
 	mutex_destroy(&queue->queue_lock);
+	mutex_destroy(&queue->pf_cache_lock);
 
 #ifdef CONFIG_DEBUG_LOCK_ALLOC
 	lockdep_unregister_key(&queue->nvme_tcp_sk_key);
@@ -1790,6 +1796,7 @@ static int nvme_tcp_alloc_queue(struct nvme_ctrl *nctrl, int qid,
 	INIT_LIST_HEAD(&queue->send_list);
 	mutex_init(&queue->send_mutex);
 	INIT_WORK(&queue->io_work, nvme_tcp_io_work);
+	mutex_init(&queue->pf_cache_lock);
 
 	if (qid > 0)
 		queue->cmnd_capsule_len = nctrl->ioccsz * 16;
@@ -1930,6 +1937,7 @@ static int nvme_tcp_alloc_queue(struct nvme_ctrl *nctrl, int qid,
 err_destroy_mutex:
 	mutex_destroy(&queue->send_mutex);
 	mutex_destroy(&queue->queue_lock);
+	mutex_destroy(&queue->pf_cache_lock);
 	return ret;
 }