Merge tag 'for-5.18/drivers-2022-03-18' of git://git.kernel.dk/linux-block

Pull block driver updates from Jens Axboe:

 - NVMe updates via Christoph:
      - add vectored-io support for user-passthrough (Kanchan Joshi)
      - add verbose error logging (Alan Adamson)
      - support buffered I/O on block devices in nvmet (Chaitanya
        Kulkarni)
      - central discovery controller support (Martin Belanger)
      - fix and extended the globally unique idenfier validation
        (Christoph)
      - move away from the deprecated IDA APIs (Sagi Grimberg)
      - misc code cleanup (Keith Busch, Max Gurtovoy, Qinghua Jin,
        Chaitanya Kulkarni)
      - add lockdep annotations for in-kernel sockets (Chris Leech)
      - use vmalloc for ANA log buffer (Hannes Reinecke)
      - kerneldoc fixes (Chaitanya Kulkarni)
      - cleanups (Guoqing Jiang, Chaitanya Kulkarni, Christoph)
      - warn about shared namespaces without multipathing (Christoph)

 - MD updates via Song with a set of cleanups (Christoph, Mariusz, Paul,
   Erik, Dirk)

 - loop cleanups and queue depth configuration (Chaitanya)

 - null_blk cleanups and fixes (Chaitanya)

 - Use descriptive init/exit names in virtio_blk (Randy)

 - Use bvec_kmap_local() in drivers (Christoph)

 - bcache fixes (Mingzhe)

 - xen blk-front persistent grant speedups (Juergen)

 - rnbd fix and cleanup (Gioh)

 - Misc fixes (Christophe, Colin)

* tag 'for-5.18/drivers-2022-03-18' of git://git.kernel.dk/linux-block: (76 commits)
  virtio_blk: eliminate anonymous module_init & module_exit
  nvme: warn about shared namespaces without CONFIG_NVME_MULTIPATH
  nvme: remove nvme_alloc_request and nvme_alloc_request_qid
  nvme: cleanup how disk->disk_name is assigned
  nvmet: move the call to nvmet_ns_changed out of nvmet_ns_revalidate
  nvmet: use snprintf() with PAGE_SIZE in configfs
  nvmet: don't fold lines
  nvmet-rdma: fix kernel-doc warning for nvmet_rdma_device_removal
  nvmet-fc: fix kernel-doc warning for nvmet_fc_unregister_targetport
  nvmet-fc: fix kernel-doc warning for nvmet_fc_register_targetport
  nvme-tcp: lockdep: annotate in-kernel sockets
  nvme-tcp: don't fold the line
  nvme-tcp: don't initialize ret variable
  nvme-multipath: call bio_io_error in nvme_ns_head_submit_bio
  nvme-multipath: use vmalloc for ANA log buffer
  xen/blkfront: speed up purge_persistent_grants()
  raid5: initialize the stripe_head embeeded bios as needed
  raid5-cache: statically allocate the recovery ra bio
  raid5-cache: fully initialize flush_bio when needed
  raid5-ppl: fully initialize the bio in ppl_new_iounit
  ...

drivers/nvme/target/configfs.c

@@ -60,10 +60,11 @@ static ssize_t nvmet_addr_adrfam_show(struct config_item *item, char *page)
 
 	for (i = 1; i < ARRAY_SIZE(nvmet_addr_family); i++) {
 		if (nvmet_addr_family[i].type == adrfam)
-			return sprintf(page, "%s\n", nvmet_addr_family[i].name);
+			return snprintf(page, PAGE_SIZE, "%s\n",
+					nvmet_addr_family[i].name);
 	}
 
-	return sprintf(page, "\n");
+	return snprintf(page, PAGE_SIZE, "\n");
 }
 
 static ssize_t nvmet_addr_adrfam_store(struct config_item *item,
@@ -93,10 +94,9 @@ CONFIGFS_ATTR(nvmet_, addr_adrfam);
 static ssize_t nvmet_addr_portid_show(struct config_item *item,
 		char *page)
 {
-	struct nvmet_port *port = to_nvmet_port(item);
+	__le16 portid = to_nvmet_port(item)->disc_addr.portid;
 
-	return snprintf(page, PAGE_SIZE, "%d\n",
-			le16_to_cpu(port->disc_addr.portid));
+	return snprintf(page, PAGE_SIZE, "%d\n", le16_to_cpu(portid));
 }
 
 static ssize_t nvmet_addr_portid_store(struct config_item *item,
@@ -124,8 +124,7 @@ static ssize_t nvmet_addr_traddr_show(struct config_item *item,
 {
 	struct nvmet_port *port = to_nvmet_port(item);
 
-	return snprintf(page, PAGE_SIZE, "%s\n",
-			port->disc_addr.traddr);
+	return snprintf(page, PAGE_SIZE, "%s\n", port->disc_addr.traddr);
 }
 
 static ssize_t nvmet_addr_traddr_store(struct config_item *item,
@@ -162,10 +161,11 @@ static ssize_t nvmet_addr_treq_show(struct config_item *item, char *page)
 
 	for (i = 0; i < ARRAY_SIZE(nvmet_addr_treq); i++) {
 		if (treq == nvmet_addr_treq[i].type)
-			return sprintf(page, "%s\n", nvmet_addr_treq[i].name);
+			return snprintf(page, PAGE_SIZE, "%s\n",
+					nvmet_addr_treq[i].name);
 	}
 
-	return sprintf(page, "\n");
+	return snprintf(page, PAGE_SIZE, "\n");
 }
 
 static ssize_t nvmet_addr_treq_store(struct config_item *item,
@@ -199,8 +199,7 @@ static ssize_t nvmet_addr_trsvcid_show(struct config_item *item,
 {
 	struct nvmet_port *port = to_nvmet_port(item);
 
-	return snprintf(page, PAGE_SIZE, "%s\n",
-			port->disc_addr.trsvcid);
+	return snprintf(page, PAGE_SIZE, "%s\n", port->disc_addr.trsvcid);
 }
 
 static ssize_t nvmet_addr_trsvcid_store(struct config_item *item,
@@ -284,7 +283,8 @@ static ssize_t nvmet_addr_trtype_show(struct config_item *item,
 
 	for (i = 0; i < ARRAY_SIZE(nvmet_transport); i++) {
 		if (port->disc_addr.trtype == nvmet_transport[i].type)
-			return sprintf(page, "%s\n", nvmet_transport[i].name);
+			return snprintf(page, PAGE_SIZE,
+					"%s\n", nvmet_transport[i].name);
 	}
 
 	return sprintf(page, "\n");
@@ -586,7 +586,8 @@ static ssize_t nvmet_ns_revalidate_size_store(struct config_item *item,
 		mutex_unlock(&ns->subsys->lock);
 		return -EINVAL;
 	}
-	nvmet_ns_revalidate(ns);
+	if (nvmet_ns_revalidate(ns))
+		nvmet_ns_changed(ns->subsys, ns->nsid);
 	mutex_unlock(&ns->subsys->lock);
 	return count;
 }