From 2957e9a7ea070524508a846205689431cb5c101f Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel.baumann@progress-linux.org>
Date: Mon, 1 Jul 2024 19:13:54 +0200
Subject: Adding upstream version 6.9.7.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
---
 drivers/nvme/host/core.c       | 17 +++++++++++------
 drivers/nvme/host/multipath.c  |  3 ++-
 drivers/nvme/host/nvme.h       |  1 +
 drivers/nvme/host/pr.c         |  2 +-
 drivers/nvme/target/configfs.c |  8 ++++++++
 drivers/nvme/target/passthru.c |  6 +++---
 6 files changed, 26 insertions(+), 11 deletions(-)

(limited to 'drivers/nvme')

diff --git a/drivers/nvme/host/core.c b/drivers/nvme/host/core.c
index 095f59e7aa..d513fd2758 100644
--- a/drivers/nvme/host/core.c
+++ b/drivers/nvme/host/core.c
@@ -414,7 +414,15 @@ static inline void nvme_end_req_zoned(struct request *req)
 	}
 }
 
-static inline void nvme_end_req(struct request *req)
+static inline void __nvme_end_req(struct request *req)
+{
+	nvme_end_req_zoned(req);
+	nvme_trace_bio_complete(req);
+	if (req->cmd_flags & REQ_NVME_MPATH)
+		nvme_mpath_end_request(req);
+}
+
+void nvme_end_req(struct request *req)
 {
 	blk_status_t status = nvme_error_status(nvme_req(req)->status);
 
@@ -424,10 +432,7 @@ static inline void nvme_end_req(struct request *req)
 		else
 			nvme_log_error(req);
 	}
-	nvme_end_req_zoned(req);
-	nvme_trace_bio_complete(req);
-	if (req->cmd_flags & REQ_NVME_MPATH)
-		nvme_mpath_end_request(req);
+	__nvme_end_req(req);
 	blk_mq_end_request(req, status);
 }
 
@@ -476,7 +481,7 @@ void nvme_complete_batch_req(struct request *req)
 {
 	trace_nvme_complete_rq(req);
 	nvme_cleanup_cmd(req);
-	nvme_end_req_zoned(req);
+	__nvme_end_req(req);
 }
 EXPORT_SYMBOL_GPL(nvme_complete_batch_req);
 
diff --git a/drivers/nvme/host/multipath.c b/drivers/nvme/host/multipath.c
index d16e976ae1..a4e46eb20b 100644
--- a/drivers/nvme/host/multipath.c
+++ b/drivers/nvme/host/multipath.c
@@ -118,7 +118,8 @@ void nvme_failover_req(struct request *req)
 	blk_steal_bios(&ns->head->requeue_list, req);
 	spin_unlock_irqrestore(&ns->head->requeue_lock, flags);
 
-	blk_mq_end_request(req, 0);
+	nvme_req(req)->status = 0;
+	nvme_end_req(req);
 	kblockd_schedule_work(&ns->head->requeue_work);
 }
 
diff --git a/drivers/nvme/host/nvme.h b/drivers/nvme/host/nvme.h
index 05532c2811..d7bcc6d51e 100644
--- a/drivers/nvme/host/nvme.h
+++ b/drivers/nvme/host/nvme.h
@@ -767,6 +767,7 @@ static inline bool nvme_state_terminal(struct nvme_ctrl *ctrl)
 	}
 }
 
+void nvme_end_req(struct request *req);
 void nvme_complete_rq(struct request *req);
 void nvme_complete_batch_req(struct request *req);
 
diff --git a/drivers/nvme/host/pr.c b/drivers/nvme/host/pr.c
index e05571b2a1..8fa1ffcdae 100644
--- a/drivers/nvme/host/pr.c
+++ b/drivers/nvme/host/pr.c
@@ -77,7 +77,7 @@ static int nvme_sc_to_pr_err(int nvme_sc)
 	if (nvme_is_path_error(nvme_sc))
 		return PR_STS_PATH_FAILED;
 
-	switch (nvme_sc) {
+	switch (nvme_sc & 0x7ff) {
 	case NVME_SC_SUCCESS:
 		return PR_STS_SUCCESS;
 	case NVME_SC_RESERVATION_CONFLICT:
diff --git a/drivers/nvme/target/configfs.c b/drivers/nvme/target/configfs.c
index 7fda69395c..dfdff6aba6 100644
--- a/drivers/nvme/target/configfs.c
+++ b/drivers/nvme/target/configfs.c
@@ -676,10 +676,18 @@ static ssize_t nvmet_ns_enable_store(struct config_item *item,
 	if (kstrtobool(page, &enable))
 		return -EINVAL;
 
+	/*
+	 * take a global nvmet_config_sem because the disable routine has a
+	 * window where it releases the subsys-lock, giving a chance to
+	 * a parallel enable to concurrently execute causing the disable to
+	 * have a misaccounting of the ns percpu_ref.
+	 */
+	down_write(&nvmet_config_sem);
 	if (enable)
 		ret = nvmet_ns_enable(ns);
 	else
 		nvmet_ns_disable(ns);
+	up_write(&nvmet_config_sem);
 
 	return ret ? ret : count;
 }
diff --git a/drivers/nvme/target/passthru.c b/drivers/nvme/target/passthru.c
index bb4a69d538..f003782d4e 100644
--- a/drivers/nvme/target/passthru.c
+++ b/drivers/nvme/target/passthru.c
@@ -226,13 +226,13 @@ static void nvmet_passthru_execute_cmd_work(struct work_struct *w)
 	    req->cmd->common.opcode == nvme_admin_identify) {
 		switch (req->cmd->identify.cns) {
 		case NVME_ID_CNS_CTRL:
-			nvmet_passthru_override_id_ctrl(req);
+			status = nvmet_passthru_override_id_ctrl(req);
 			break;
 		case NVME_ID_CNS_NS:
-			nvmet_passthru_override_id_ns(req);
+			status = nvmet_passthru_override_id_ns(req);
 			break;
 		case NVME_ID_CNS_NS_DESC_LIST:
-			nvmet_passthru_override_id_descs(req);
+			status = nvmet_passthru_override_id_descs(req);
 			break;
 		}
 	} else if (status < 0)
-- 
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