Re: Linux 6.19.1

[Greg Kroah-Hartman]

diff --git a/Makefile b/Makefile
index d3a8482bdbd0..965228c1c2ff 100644
--- a/Makefile
+++ b/Makefile
@@ -1,7 +1,7 @@
 # SPDX-License-Identifier: GPL-2.0
 VERSION = 6
 PATCHLEVEL = 19
-SUBLEVEL = 0
+SUBLEVEL = 1
 EXTRAVERSION =
 NAME = Baby Opossum Posse
 
diff --git a/drivers/base/base.h b/drivers/base/base.h
index 430cbefbc97f..677320881af1 100644
--- a/drivers/base/base.h
+++ b/drivers/base/base.h
@@ -182,9 +182,18 @@ void device_set_deferred_probe_reason(const struct device *dev, struct va_format
 static inline int driver_match_device(const struct device_driver *drv,
 				      struct device *dev)
 {
+	device_lock_assert(dev);
+
 	return drv->bus->match ? drv->bus->match(dev, drv) : 1;
 }
 
+static inline int driver_match_device_locked(const struct device_driver *drv,
+					     struct device *dev)
+{
+	guard(device)(dev);
+	return driver_match_device(drv, dev);
+}
+
 static inline void dev_sync_state(struct device *dev)
 {
 	if (dev->bus->sync_state)
diff --git a/drivers/base/bus.c b/drivers/base/bus.c
index 9eb7771706f0..331d750465e2 100644
--- a/drivers/base/bus.c
+++ b/drivers/base/bus.c
@@ -263,7 +263,7 @@ static ssize_t bind_store(struct device_driver *drv, const char *buf,
 	int err = -ENODEV;
 
 	dev = bus_find_device_by_name(bus, NULL, buf);
-	if (dev && driver_match_device(drv, dev)) {
+	if (dev && driver_match_device_locked(drv, dev)) {
 		err = device_driver_attach(drv, dev);
 		if (!err) {
 			/* success */
diff --git a/drivers/base/dd.c b/drivers/base/dd.c
index bea8da5f8a3a..ed3a07624816 100644
--- a/drivers/base/dd.c
+++ b/drivers/base/dd.c
@@ -1180,7 +1180,7 @@ static int __driver_attach(struct device *dev, void *data)
 	 * is an error.
 	 */
 
-	ret = driver_match_device(drv, dev);
+	ret = driver_match_device_locked(drv, dev);
 	if (ret == 0) {
 		/* no match */
 		return 0;
diff --git a/drivers/bluetooth/btusb.c b/drivers/bluetooth/btusb.c
index ded09e94d296..80ccfa8fd982 100644
--- a/drivers/bluetooth/btusb.c
+++ b/drivers/bluetooth/btusb.c
@@ -527,6 +527,8 @@ static const struct usb_device_id quirks_table[] = {
 						     BTUSB_WIDEBAND_SPEECH },
 	{ USB_DEVICE(0x2001, 0x332a), .driver_info = BTUSB_REALTEK |
 						     BTUSB_WIDEBAND_SPEECH },
+	{ USB_DEVICE(0x7392, 0xe611), .driver_info = BTUSB_REALTEK |
+						     BTUSB_WIDEBAND_SPEECH },
 
 	/* Realtek 8852AE Bluetooth devices */
 	{ USB_DEVICE(0x0bda, 0x2852), .driver_info = BTUSB_REALTEK |
diff --git a/drivers/bus/fsl-mc/fsl-mc-bus.c b/drivers/bus/fsl-mc/fsl-mc-bus.c
index 25845c04e562..a97baf2cbcdd 100644
--- a/drivers/bus/fsl-mc/fsl-mc-bus.c
+++ b/drivers/bus/fsl-mc/fsl-mc-bus.c
@@ -202,8 +202,12 @@ static ssize_t driver_override_show(struct device *dev,
 				    struct device_attribute *attr, char *buf)
 {
 	struct fsl_mc_device *mc_dev = to_fsl_mc_device(dev);
+	ssize_t len;
 
-	return sysfs_emit(buf, "%s\n", mc_dev->driver_override);
+	device_lock(dev);
+	len = sysfs_emit(buf, "%s\n", mc_dev->driver_override);
+	device_unlock(dev);
+	return len;
 }
 static DEVICE_ATTR_RW(driver_override);
 
diff --git a/drivers/crypto/intel/iaa/iaa_crypto_main.c b/drivers/crypto/intel/iaa/iaa_crypto_main.c
index d0058757b000..da9b2bc51519 100644
--- a/drivers/crypto/intel/iaa/iaa_crypto_main.c
+++ b/drivers/crypto/intel/iaa/iaa_crypto_main.c
@@ -221,15 +221,13 @@ static struct iaa_compression_mode *iaa_compression_modes[IAA_COMP_MODES_MAX];
 
 static int find_empty_iaa_compression_mode(void)
 {
-	int i = -EINVAL;
+	int i;
 
-	for (i = 0; i < IAA_COMP_MODES_MAX; i++) {
-		if (iaa_compression_modes[i])
-			continue;
-		break;
-	}
+	for (i = 0; i < IAA_COMP_MODES_MAX; i++)
+		if (!iaa_compression_modes[i])
+			return i;
 
-	return i;
+	return -EINVAL;
 }
 
 static struct iaa_compression_mode *find_iaa_compression_mode(const char *name, int *idx)
diff --git a/drivers/crypto/marvell/octeontx/otx_cptpf_ucode.c b/drivers/crypto/marvell/octeontx/otx_cptpf_ucode.c
index 9f5601c0280b..417a48f41350 100644
--- a/drivers/crypto/marvell/octeontx/otx_cptpf_ucode.c
+++ b/drivers/crypto/marvell/octeontx/otx_cptpf_ucode.c
@@ -1326,7 +1326,7 @@ static ssize_t ucode_load_store(struct device *dev,
 	int del_grp_idx = -1;
 	int ucode_idx = 0;
 
-	if (strlen(buf) > OTX_CPT_UCODE_NAME_LENGTH)
+	if (count >= OTX_CPT_UCODE_NAME_LENGTH)
 		return -EINVAL;
 
 	eng_grps = container_of(attr, struct otx_cpt_eng_grps, ucode_load_attr);
diff --git a/drivers/crypto/omap-crypto.c b/drivers/crypto/omap-crypto.c
index a4cc6bf146ec..0345c9383d50 100644
--- a/drivers/crypto/omap-crypto.c
+++ b/drivers/crypto/omap-crypto.c
@@ -21,7 +21,7 @@ static int omap_crypto_copy_sg_lists(int total, int bs,
 	struct scatterlist *tmp;
 
 	if (!(flags & OMAP_CRYPTO_FORCE_SINGLE_ENTRY)) {
-		new_sg = kmalloc_array(n, sizeof(*sg), GFP_KERNEL);
+		new_sg = kmalloc_array(n, sizeof(*new_sg), GFP_KERNEL);
 		if (!new_sg)
 			return -ENOMEM;
 
diff --git a/drivers/crypto/virtio/virtio_crypto_core.c b/drivers/crypto/virtio/virtio_crypto_core.c
index 3d241446099c..ccc6b5c1b24b 100644
--- a/drivers/crypto/virtio/virtio_crypto_core.c
+++ b/drivers/crypto/virtio/virtio_crypto_core.c
@@ -75,15 +75,20 @@ static void virtcrypto_done_task(unsigned long data)
 	struct data_queue *data_vq = (struct data_queue *)data;
 	struct virtqueue *vq = data_vq->vq;
 	struct virtio_crypto_request *vc_req;
+	unsigned long flags;
 	unsigned int len;
 
+	spin_lock_irqsave(&data_vq->lock, flags);
 	do {
 		virtqueue_disable_cb(vq);
 		while ((vc_req = virtqueue_get_buf(vq, &len)) != NULL) {
+			spin_unlock_irqrestore(&data_vq->lock, flags);
 			if (vc_req->alg_cb)
 				vc_req->alg_cb(vc_req, len);
+			spin_lock_irqsave(&data_vq->lock, flags);
 		}
 	} while (!virtqueue_enable_cb(vq));
+	spin_unlock_irqrestore(&data_vq->lock, flags);
 }
 
 static void virtcrypto_dataq_callback(struct virtqueue *vq)
diff --git a/drivers/crypto/virtio/virtio_crypto_skcipher_algs.c b/drivers/crypto/virtio/virtio_crypto_skcipher_algs.c
index 1b3fb21a2a7d..11053d1786d4 100644
--- a/drivers/crypto/virtio/virtio_crypto_skcipher_algs.c
+++ b/drivers/crypto/virtio/virtio_crypto_skcipher_algs.c
@@ -541,8 +541,6 @@ int virtio_crypto_skcipher_crypt_req(
 	if (ret < 0)
 		return ret;
 
-	virtqueue_kick(data_vq->vq);
-
 	return 0;
 }
 
diff --git a/drivers/gpu/drm/exynos/exynos_drm_vidi.c b/drivers/gpu/drm/exynos/exynos_drm_vidi.c
index 64c69dd2966e..aa255a7ddd85 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_vidi.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_vidi.c
@@ -187,29 +187,37 @@ static ssize_t vidi_store_connection(struct device *dev,
 				const char *buf, size_t len)
 {
 	struct vidi_context *ctx = dev_get_drvdata(dev);
-	int ret;
+	int ret, new_connected;
 
-	ret = kstrtoint(buf, 0, &ctx->connected);
+	ret = kstrtoint(buf, 0, &new_connected);
 	if (ret)
 		return ret;
-
-	if (ctx->connected > 1)
+	if (new_connected > 1)
 		return -EINVAL;
 
+	mutex_lock(&ctx->lock);
+
 	/*
 	 * Use fake edid data for test. If raw_edid is set then it can't be
 	 * tested.
 	 */
 	if (ctx->raw_edid) {
 		DRM_DEV_DEBUG_KMS(dev, "edid data is not fake data.\n");
-		return -EINVAL;
+		ret = -EINVAL;
+		goto fail;
 	}
 
+	ctx->connected = new_connected;
+	mutex_unlock(&ctx->lock);
+
 	DRM_DEV_DEBUG_KMS(dev, "requested connection.\n");
 
 	drm_helper_hpd_irq_event(ctx->drm_dev);
 
 	return len;
+fail:
+	mutex_unlock(&ctx->lock);
+	return ret;
 }
 
 static DEVICE_ATTR(connection, 0644, vidi_show_connection,
@@ -239,11 +247,14 @@ int vidi_connection_ioctl(struct drm_device *drm_dev, void *data,
 		return -EINVAL;
 	}
 
+	mutex_lock(&ctx->lock);
 	if (ctx->connected == vidi->connection) {
+		mutex_unlock(&ctx->lock);
 		DRM_DEV_DEBUG_KMS(ctx->dev,
 				  "same connection request.\n");
 		return -EINVAL;
 	}
+	mutex_unlock(&ctx->lock);
 
 	if (vidi->connection) {
 		const struct drm_edid *drm_edid;
@@ -263,14 +274,21 @@ int vidi_connection_ioctl(struct drm_device *drm_dev, void *data,
 					  "edid data is invalid.\n");
 			return -EINVAL;
 		}
+		mutex_lock(&ctx->lock);
 		ctx->raw_edid = drm_edid;
+		mutex_unlock(&ctx->lock);
 	} else {
 		/* with connection = 0, free raw_edid */
+		mutex_lock(&ctx->lock);
 		drm_edid_free(ctx->raw_edid);
 		ctx->raw_edid = NULL;
+		mutex_unlock(&ctx->lock);
 	}
 
+	mutex_lock(&ctx->lock);
 	ctx->connected = vidi->connection;
+	mutex_unlock(&ctx->lock);
+
 	drm_helper_hpd_irq_event(ctx->drm_dev);
 
 	return 0;
@@ -285,7 +303,7 @@ static enum drm_connector_status vidi_detect(struct drm_connector *connector,
 	 * connection request would come from user side
 	 * to do hotplug through specific ioctl.
 	 */
-	return ctx->connected ? connector_status_connected :
+	return READ_ONCE(ctx->connected) ? connector_status_connected :
 			connector_status_disconnected;
 }
 
@@ -308,11 +326,15 @@ static int vidi_get_modes(struct drm_connector *connector)
 	const struct drm_edid *drm_edid;
 	int count;
 
+	mutex_lock(&ctx->lock);
+
 	if (ctx->raw_edid)
 		drm_edid = drm_edid_dup(ctx->raw_edid);
 	else
 		drm_edid = drm_edid_alloc(fake_edid_info, sizeof(fake_edid_info));
 
+	mutex_unlock(&ctx->lock);
+
 	drm_edid_connector_update(connector, drm_edid);
 
 	count = drm_edid_connector_add_modes(connector);
@@ -457,9 +479,13 @@ static void vidi_remove(struct platform_device *pdev)
 {
 	struct vidi_context *ctx = platform_get_drvdata(pdev);
 
+	mutex_lock(&ctx->lock);
+
 	drm_edid_free(ctx->raw_edid);
 	ctx->raw_edid = NULL;
 
+	mutex_unlock(&ctx->lock);
+
 	component_del(&pdev->dev, &vidi_component_ops);
 }
 
diff --git a/drivers/net/wireless/realtek/rtl8xxxu/core.c b/drivers/net/wireless/realtek/rtl8xxxu/core.c
index c06ad064f37c..f9a527f6a175 100644
--- a/drivers/net/wireless/realtek/rtl8xxxu/core.c
+++ b/drivers/net/wireless/realtek/rtl8xxxu/core.c
@@ -7826,6 +7826,7 @@ static int rtl8xxxu_probe(struct usb_interface *interface,
 		goto err_set_intfdata;
 
 	hw->vif_data_size = sizeof(struct rtl8xxxu_vif);
+	hw->sta_data_size = sizeof(struct rtl8xxxu_sta_info);
 
 	hw->wiphy->max_scan_ssids = 1;
 	hw->wiphy->max_scan_ie_len = IEEE80211_MAX_DATA_LEN;
diff --git a/drivers/net/wireless/realtek/rtw88/main.c b/drivers/net/wireless/realtek/rtw88/main.c
index fa0ed39cb199..d93d21656f26 100644
--- a/drivers/net/wireless/realtek/rtw88/main.c
+++ b/drivers/net/wireless/realtek/rtw88/main.c
@@ -2444,10 +2444,10 @@ void rtw_core_enable_beacon(struct rtw_dev *rtwdev, bool enable)
 
 	if (enable) {
 		rtw_write32_set(rtwdev, REG_BCN_CTRL, BIT_EN_BCN_FUNCTION);
-		rtw_write32_clr(rtwdev, REG_TXPAUSE, BIT_HIGH_QUEUE);
+		rtw_write8_clr(rtwdev, REG_TXPAUSE, BIT_HIGH_QUEUE);
 	} else {
 		rtw_write32_clr(rtwdev, REG_BCN_CTRL, BIT_EN_BCN_FUNCTION);
-		rtw_write32_set(rtwdev, REG_TXPAUSE, BIT_HIGH_QUEUE);
+		rtw_write8_set(rtwdev, REG_TXPAUSE, BIT_HIGH_QUEUE);
 	}
 }
 
diff --git a/drivers/pci/endpoint/pci-ep-cfs.c b/drivers/pci/endpoint/pci-ep-cfs.c
index ef50c82e647f..43feb6139fa3 100644
--- a/drivers/pci/endpoint/pci-ep-cfs.c
+++ b/drivers/pci/endpoint/pci-ep-cfs.c
@@ -23,7 +23,6 @@ struct pci_epf_group {
 	struct config_group group;
 	struct config_group primary_epc_group;
 	struct config_group secondary_epc_group;
-	struct delayed_work cfs_work;
 	struct pci_epf *epf;
 	int index;
 };
@@ -103,7 +102,7 @@ static struct config_group
 	secondary_epc_group = &epf_group->secondary_epc_group;
 	config_group_init_type_name(secondary_epc_group, "secondary",
 				    &pci_secondary_epc_type);
-	configfs_register_group(&epf_group->group, secondary_epc_group);
+	configfs_add_default_group(secondary_epc_group, &epf_group->group);
 
 	return secondary_epc_group;
 }
@@ -166,7 +165,7 @@ static struct config_group
 
 	config_group_init_type_name(primary_epc_group, "primary",
 				    &pci_primary_epc_type);
-	configfs_register_group(&epf_group->group, primary_epc_group);
+	configfs_add_default_group(primary_epc_group, &epf_group->group);
 
 	return primary_epc_group;
 }
@@ -570,15 +569,13 @@ static void pci_ep_cfs_add_type_group(struct pci_epf_group *epf_group)
 		return;
 	}
 
-	configfs_register_group(&epf_group->group, group);
+	configfs_add_default_group(group, &epf_group->group);
 }
 
-static void pci_epf_cfs_work(struct work_struct *work)
+static void pci_epf_cfs_add_sub_groups(struct pci_epf_group *epf_group)
 {
-	struct pci_epf_group *epf_group;
 	struct config_group *group;
 
-	epf_group = container_of(work, struct pci_epf_group, cfs_work.work);
 	group = pci_ep_cfs_add_primary_group(epf_group);
 	if (IS_ERR(group)) {
 		pr_err("failed to create 'primary' EPC interface\n");
@@ -637,9 +634,7 @@ static struct config_group *pci_epf_make(struct config_group *group,
 
 	kfree(epf_name);
 
-	INIT_DELAYED_WORK(&epf_group->cfs_work, pci_epf_cfs_work);
-	queue_delayed_work(system_wq, &epf_group->cfs_work,
-			   msecs_to_jiffies(1));
+	pci_epf_cfs_add_sub_groups(epf_group);
 
 	return &epf_group->group;
 
diff --git a/drivers/scsi/qla2xxx/qla_gs.c b/drivers/scsi/qla2xxx/qla_gs.c
index 51c7cea71f90..880cd73feaca 100644
--- a/drivers/scsi/qla2xxx/qla_gs.c
+++ b/drivers/scsi/qla2xxx/qla_gs.c
@@ -3266,9 +3266,6 @@ void qla_fab_scan_finish(scsi_qla_host_t *vha, srb_t *sp)
 			    atomic_read(&fcport->state) == FCS_ONLINE) ||
 				do_delete) {
 				if (fcport->loop_id != FC_NO_LOOP_ID) {
-					if (fcport->flags & FCF_FCP2_DEVICE)
-						continue;
-
 					ql_log(ql_log_warn, vha, 0x20f0,
 					       "%s %d %8phC post del sess\n",
 					       __func__, __LINE__,
@@ -3535,8 +3532,8 @@ int qla_fab_async_scan(scsi_qla_host_t *vha, srb_t *sp)
 	if (vha->scan.scan_flags & SF_SCANNING) {
 		spin_unlock_irqrestore(&vha->work_lock, flags);
 		ql_dbg(ql_dbg_disc + ql_dbg_verbose, vha, 0x2012,
-		    "%s: scan active\n", __func__);
-		return rval;
+		    "%s: scan active for sp:%p\n", __func__, sp);
+		goto done_free_sp;
 	}
 	vha->scan.scan_flags |= SF_SCANNING;
 	if (!sp)
@@ -3701,23 +3698,25 @@ int qla_fab_async_scan(scsi_qla_host_t *vha, srb_t *sp)
 	return rval;
 
 done_free_sp:
-	if (sp->u.iocb_cmd.u.ctarg.req) {
-		dma_free_coherent(&vha->hw->pdev->dev,
-		    sp->u.iocb_cmd.u.ctarg.req_allocated_size,
-		    sp->u.iocb_cmd.u.ctarg.req,
-		    sp->u.iocb_cmd.u.ctarg.req_dma);
-		sp->u.iocb_cmd.u.ctarg.req = NULL;
-	}
-	if (sp->u.iocb_cmd.u.ctarg.rsp) {
-		dma_free_coherent(&vha->hw->pdev->dev,
-		    sp->u.iocb_cmd.u.ctarg.rsp_allocated_size,
-		    sp->u.iocb_cmd.u.ctarg.rsp,
-		    sp->u.iocb_cmd.u.ctarg.rsp_dma);
-		sp->u.iocb_cmd.u.ctarg.rsp = NULL;
-	}
+	if (sp) {
+		if (sp->u.iocb_cmd.u.ctarg.req) {
+			dma_free_coherent(&vha->hw->pdev->dev,
+			    sp->u.iocb_cmd.u.ctarg.req_allocated_size,
+			    sp->u.iocb_cmd.u.ctarg.req,
+			    sp->u.iocb_cmd.u.ctarg.req_dma);
+			sp->u.iocb_cmd.u.ctarg.req = NULL;
+		}
+		if (sp->u.iocb_cmd.u.ctarg.rsp) {
+			dma_free_coherent(&vha->hw->pdev->dev,
+			    sp->u.iocb_cmd.u.ctarg.rsp_allocated_size,
+			    sp->u.iocb_cmd.u.ctarg.rsp,
+			    sp->u.iocb_cmd.u.ctarg.rsp_dma);
+			sp->u.iocb_cmd.u.ctarg.rsp = NULL;
+		}
 
-	/* ref: INIT */
-	kref_put(&sp->cmd_kref, qla2x00_sp_release);
+		/* ref: INIT */
+		kref_put(&sp->cmd_kref, qla2x00_sp_release);
+	}
 
 	spin_lock_irqsave(&vha->work_lock, flags);
 	vha->scan.scan_flags &= ~SF_SCANNING;
diff --git a/drivers/scsi/qla2xxx/qla_init.c b/drivers/scsi/qla2xxx/qla_init.c
index d395cbfe6802..80d66ad324ba 100644
--- a/drivers/scsi/qla2xxx/qla_init.c
+++ b/drivers/scsi/qla2xxx/qla_init.c
@@ -1859,15 +1859,6 @@ void qla2x00_handle_rscn(scsi_qla_host_t *vha, struct event_arg *ea)
 	case RSCN_PORT_ADDR:
 		fcport = qla2x00_find_fcport_by_nportid(vha, &ea->id, 1);
 		if (fcport) {
-			if (ql2xfc2target &&
-			    fcport->flags & FCF_FCP2_DEVICE &&
-			    atomic_read(&fcport->state) == FCS_ONLINE) {
-				ql_dbg(ql_dbg_disc, vha, 0x2115,
-				       "Delaying session delete for FCP2 portid=%06x %8phC ",
-					fcport->d_id.b24, fcport->port_name);
-				return;
-			}
-
 			if (vha->hw->flags.edif_enabled && DBELL_ACTIVE(vha)) {
 				/*
 				 * On ipsec start by remote port, Target port
@@ -2471,8 +2462,23 @@ qla24xx_handle_plogi_done_event(struct scsi_qla_host *vha, struct event_arg *ea)
 	    ea->sp->gen1, fcport->rscn_gen,
 	    ea->data[0], ea->data[1], ea->iop[0], ea->iop[1]);
 
-	if ((fcport->fw_login_state == DSC_LS_PLOGI_PEND) ||
-	    (fcport->fw_login_state == DSC_LS_PRLI_PEND)) {
+	if (fcport->fw_login_state == DSC_LS_PLOGI_PEND) {
+		ql_dbg(ql_dbg_disc, vha, 0x20ea,
+		    "%s %d %8phC Remote is trying to login\n",
+		    __func__, __LINE__, fcport->port_name);
+		/*
+		 * If we get here, there is port thats already logged in,
+		 * but it's state has not moved ahead. Recheck with FW on
+		 * what state it is in and proceed ahead
+		 */
+		if (!N2N_TOPO(vha->hw)) {
+			fcport->fw_login_state = DSC_LS_PRLI_COMP;
+			qla24xx_post_gpdb_work(vha, fcport, 0);
+		}
+		return;
+	}
+
+	if (fcport->fw_login_state == DSC_LS_PRLI_PEND) {
 		ql_dbg(ql_dbg_disc, vha, 0x20ea,
 		    "%s %d %8phC Remote is trying to login\n",
 		    __func__, __LINE__, fcport->port_name);
diff --git a/drivers/scsi/qla2xxx/qla_isr.c b/drivers/scsi/qla2xxx/qla_isr.c
index a04a5aa0d005..608d2f36e7b4 100644
--- a/drivers/scsi/qla2xxx/qla_isr.c
+++ b/drivers/scsi/qla2xxx/qla_isr.c
@@ -1676,13 +1676,28 @@ qla2x00_async_event(scsi_qla_host_t *vha, struct rsp_que *rsp, uint16_t *mb)
 
 			/* Port logout */
 			fcport = qla2x00_find_fcport_by_loopid(vha, mb[1]);
-			if (!fcport)
+			if (!fcport) {
+				ql_dbg(ql_dbg_async, vha, 0x5011,
+					"Could not find fcport:%04x %04x %04x\n",
+					mb[1], mb[2], mb[3]);
 				break;
-			if (atomic_read(&fcport->state) != FCS_ONLINE)
+			}
+
+			if (atomic_read(&fcport->state) != FCS_ONLINE) {
+				ql_dbg(ql_dbg_async, vha, 0x5012,
+					"Port state is not online State:0x%x \n",
+					atomic_read(&fcport->state));
+				ql_dbg(ql_dbg_async, vha, 0x5012,
+					"Scheduling session for deletion \n");
+				fcport->logout_on_delete = 0;
+				qlt_schedule_sess_for_deletion(fcport);
 				break;
+			}
+
 			ql_dbg(ql_dbg_async, vha, 0x508a,
 			    "Marking port lost loopid=%04x portid=%06x.\n",
 			    fcport->loop_id, fcport->d_id.b24);
+
 			if (qla_ini_mode_enabled(vha)) {
 				fcport->logout_on_delete = 0;
 				qlt_schedule_sess_for_deletion(fcport);
diff --git a/drivers/scsi/qla2xxx/qla_os.c b/drivers/scsi/qla2xxx/qla_os.c
index e939bc88e151..35fb3e5f4e9f 100644
--- a/drivers/scsi/qla2xxx/qla_os.c
+++ b/drivers/scsi/qla2xxx/qla_os.c
@@ -1183,7 +1183,8 @@ qla2x00_wait_for_hba_ready(scsi_qla_host_t *vha)
 	while ((qla2x00_reset_active(vha) || ha->dpc_active ||
 		ha->flags.mbox_busy) ||
 	       test_bit(FX00_RESET_RECOVERY, &vha->dpc_flags) ||
-	       test_bit(FX00_TARGET_SCAN, &vha->dpc_flags)) {
+	       test_bit(FX00_TARGET_SCAN, &vha->dpc_flags) ||
+	       (vha->scan.scan_flags & SF_SCANNING)) {
 		if (test_bit(UNLOADING, &base_vha->dpc_flags))
 			break;
 		msleep(1000);
diff --git a/fs/erofs/fileio.c b/fs/erofs/fileio.c
index 932e8b353ba1..1673c5416fba 100644
--- a/fs/erofs/fileio.c
+++ b/fs/erofs/fileio.c
@@ -10,6 +10,7 @@ struct erofs_fileio_rq {
 	struct bio bio;
 	struct kiocb iocb;
 	struct super_block *sb;
+	refcount_t ref;
 };
 
 struct erofs_fileio {
@@ -42,7 +43,8 @@ static void erofs_fileio_ki_complete(struct kiocb *iocb, long ret)
 	}
 	bio_endio(&rq->bio);
 	bio_uninit(&rq->bio);
-	kfree(rq);
+	if (refcount_dec_and_test(&rq->ref))
+		kfree(rq);
 }
 
 static void erofs_fileio_rq_submit(struct erofs_fileio_rq *rq)
@@ -64,6 +66,8 @@ static void erofs_fileio_rq_submit(struct erofs_fileio_rq *rq)
 		ret = vfs_iocb_iter_read(rq->iocb.ki_filp, &rq->iocb, &iter);
 	if (ret != -EIOCBQUEUED)
 		erofs_fileio_ki_complete(&rq->iocb, ret);
+	if (refcount_dec_and_test(&rq->ref))
+		kfree(rq);
 }
 
 static struct erofs_fileio_rq *erofs_fileio_rq_alloc(struct erofs_map_dev *mdev)
@@ -74,6 +78,7 @@ static struct erofs_fileio_rq *erofs_fileio_rq_alloc(struct erofs_map_dev *mdev)
 	bio_init(&rq->bio, NULL, rq->bvecs, ARRAY_SIZE(rq->bvecs), REQ_OP_READ);
 	rq->iocb.ki_filp = mdev->m_dif->file;
 	rq->sb = mdev->m_sb;
+	refcount_set(&rq->ref, 2);
 	return rq;
 }
 
diff --git a/fs/hfs/mdb.c b/fs/hfs/mdb.c
index 53f3fae60217..f28cd24dee84 100644
--- a/fs/hfs/mdb.c
+++ b/fs/hfs/mdb.c
@@ -92,7 +92,7 @@ int hfs_mdb_get(struct super_block *sb)
 		/* See if this is an HFS filesystem */
 		bh = sb_bread512(sb, part_start + HFS_MDB_BLK, mdb);
 		if (!bh)
-			goto out;
+			return -EIO;
 
 		if (mdb->drSigWord == cpu_to_be16(HFS_SUPER_MAGIC))
 			break;
@@ -102,13 +102,14 @@ int hfs_mdb_get(struct super_block *sb)
 		 * (should do this only for cdrom/loop though)
 		 */
 		if (hfs_part_find(sb, &part_start, &part_size))
-			goto out;
+			return -EIO;
 	}
 
 	HFS_SB(sb)->alloc_blksz = size = be32_to_cpu(mdb->drAlBlkSiz);
 	if (!size || (size & (HFS_SECTOR_SIZE - 1))) {
 		pr_err("bad allocation block size %d\n", size);
-		goto out_bh;
+		brelse(bh);
+		return -EIO;
 	}
 
 	size = min(HFS_SB(sb)->alloc_blksz, (u32)PAGE_SIZE);
@@ -125,14 +126,16 @@ int hfs_mdb_get(struct super_block *sb)
 	brelse(bh);
 	if (!sb_set_blocksize(sb, size)) {
 		pr_err("unable to set blocksize to %u\n", size);
-		goto out;
+		return -EIO;
 	}
 
 	bh = sb_bread512(sb, part_start + HFS_MDB_BLK, mdb);
 	if (!bh)
-		goto out;
-	if (mdb->drSigWord != cpu_to_be16(HFS_SUPER_MAGIC))
-		goto out_bh;
+		return -EIO;
+	if (mdb->drSigWord != cpu_to_be16(HFS_SUPER_MAGIC)) {
+		brelse(bh);
+		return -EIO;
+	}
 
 	HFS_SB(sb)->mdb_bh = bh;
 	HFS_SB(sb)->mdb = mdb;
@@ -174,7 +177,7 @@ int hfs_mdb_get(struct super_block *sb)
 
 	HFS_SB(sb)->bitmap = kzalloc(8192, GFP_KERNEL);
 	if (!HFS_SB(sb)->bitmap)
-		goto out;
+		return -EIO;
 
 	/* read in the bitmap */
 	block = be16_to_cpu(mdb->drVBMSt) + part_start;
@@ -185,7 +188,7 @@ int hfs_mdb_get(struct super_block *sb)
 		bh = sb_bread(sb, off >> sb->s_blocksize_bits);
 		if (!bh) {
 			pr_err("unable to read volume bitmap\n");
-			goto out;
+			return -EIO;
 		}
 		off2 = off & (sb->s_blocksize - 1);
 		len = min((int)sb->s_blocksize - off2, size);
@@ -199,12 +202,12 @@ int hfs_mdb_get(struct super_block *sb)
 	HFS_SB(sb)->ext_tree = hfs_btree_open(sb, HFS_EXT_CNID, hfs_ext_keycmp);
 	if (!HFS_SB(sb)->ext_tree) {
 		pr_err("unable to open extent tree\n");
-		goto out;
+		return -EIO;
 	}
 	HFS_SB(sb)->cat_tree = hfs_btree_open(sb, HFS_CAT_CNID, hfs_cat_keycmp);
 	if (!HFS_SB(sb)->cat_tree) {
 		pr_err("unable to open catalog tree\n");
-		goto out;
+		return -EIO;
 	}
 
 	attrib = mdb->drAtrb;
@@ -229,12 +232,6 @@ int hfs_mdb_get(struct super_block *sb)
 	}
 
 	return 0;
-
-out_bh:
-	brelse(bh);
-out:
-	hfs_mdb_put(sb);
-	return -EIO;
 }
 
 /*
@@ -359,8 +356,6 @@ void hfs_mdb_close(struct super_block *sb)
  * Release the resources associated with the in-core MDB.  */
 void hfs_mdb_put(struct super_block *sb)
 {
-	if (!HFS_SB(sb))
-		return;
 	/* free the B-trees */
 	hfs_btree_close(HFS_SB(sb)->ext_tree);
 	hfs_btree_close(HFS_SB(sb)->cat_tree);
@@ -373,6 +368,4 @@ void hfs_mdb_put(struct super_block *sb)
 	unload_nls(HFS_SB(sb)->nls_disk);
 
 	kfree(HFS_SB(sb)->bitmap);
-	kfree(HFS_SB(sb));
-	sb->s_fs_info = NULL;
 }
diff --git a/fs/hfs/super.c b/fs/hfs/super.c
index 47f50fa555a4..df289cbdd4e8 100644
--- a/fs/hfs/super.c
+++ b/fs/hfs/super.c
@@ -431,10 +431,18 @@ static int hfs_init_fs_context(struct fs_context *fc)
 	return 0;
 }
 
+static void hfs_kill_super(struct super_block *sb)
+{
+	struct hfs_sb_info *hsb = HFS_SB(sb);
+
+	kill_block_super(sb);
+	kfree(hsb);
+}
+
 static struct file_system_type hfs_fs_type = {
 	.owner		= THIS_MODULE,
 	.name		= "hfs",
-	.kill_sb	= kill_block_super,
+	.kill_sb	= hfs_kill_super,
 	.fs_flags	= FS_REQUIRES_DEV,
 	.init_fs_context = hfs_init_fs_context,
 };
diff --git a/fs/nilfs2/sufile.c b/fs/nilfs2/sufile.c
index 83f93337c01b..eceedca02697 100644
--- a/fs/nilfs2/sufile.c
+++ b/fs/nilfs2/sufile.c
@@ -1093,6 +1093,9 @@ int nilfs_sufile_trim_fs(struct inode *sufile, struct fstrim_range *range)
 	else
 		end_block = start_block + len - 1;
 
+	if (end_block < nilfs->ns_first_data_block)
+		goto out;
+
 	segnum = nilfs_get_segnum_of_block(nilfs, start_block);
 	segnum_end = nilfs_get_segnum_of_block(nilfs, end_block);
 
@@ -1191,6 +1194,7 @@ int nilfs_sufile_trim_fs(struct inode *sufile, struct fstrim_range *range)
 out_sem:
 	up_read(&NILFS_MDT(sufile)->mi_sem);
 
+out:
 	range->len = ndiscarded << nilfs->ns_blocksize_bits;
 	return ret;
 }
diff --git a/fs/smb/client/cached_dir.h b/fs/smb/client/cached_dir.h
index 1e383db7c337..5091bf45345e 100644
--- a/fs/smb/client/cached_dir.h
+++ b/fs/smb/client/cached_dir.h
@@ -36,10 +36,10 @@ struct cached_fid {
 	struct list_head entry;
 	struct cached_fids *cfids;
 	const char *path;
-	bool has_lease:1;
-	bool is_open:1;
-	bool on_list:1;
-	bool file_all_info_is_valid:1;
+	bool has_lease;
+	bool is_open;
+	bool on_list;
+	bool file_all_info_is_valid;
 	unsigned long time; /* jiffies of when lease was taken */
 	unsigned long last_access_time; /* jiffies of when last accessed */
 	struct kref refcount;
diff --git a/fs/smb/client/smbdirect.c b/fs/smb/client/smbdirect.c
index 788a0670c4a8..01d55bcc6d0f 100644
--- a/fs/smb/client/smbdirect.c
+++ b/fs/smb/client/smbdirect.c
@@ -35,6 +35,10 @@ static void enqueue_reassembly(
 static struct smbdirect_recv_io *_get_first_reassembly(
 		struct smbdirect_socket *sc);
 
+static int smbd_post_send(struct smbdirect_socket *sc,
+			  struct smbdirect_send_batch *batch,
+			  struct smbdirect_send_io *request);
+
 static int smbd_post_recv(
 		struct smbdirect_socket *sc,
 		struct smbdirect_recv_io *response);
@@ -493,27 +497,103 @@ static inline void *smbdirect_recv_io_payload(struct smbdirect_recv_io *response
 	return (void *)response->packet;
 }
 
+static struct smbdirect_send_io *smbd_alloc_send_io(struct smbdirect_socket *sc)
+{
+	struct smbdirect_send_io *msg;
+
+	msg = mempool_alloc(sc->send_io.mem.pool, GFP_KERNEL);
+	if (!msg)
+		return ERR_PTR(-ENOMEM);
+	msg->socket = sc;
+	INIT_LIST_HEAD(&msg->sibling_list);
+	msg->num_sge = 0;
+
+	return msg;
+}
+
+static void smbd_free_send_io(struct smbdirect_send_io *msg)
+{
+	struct smbdirect_socket *sc = msg->socket;
+	size_t i;
+
+	/*
+	 * The list needs to be empty!
+	 * The caller should take care of it.
+	 */
+	WARN_ON_ONCE(!list_empty(&msg->sibling_list));
+
+	/*
+	 * Note we call ib_dma_unmap_page(), even if some sges are mapped using
+	 * ib_dma_map_single().
+	 *
+	 * The difference between _single() and _page() only matters for the
+	 * ib_dma_map_*() case.
+	 *
+	 * For the ib_dma_unmap_*() case it does not matter as both take the
+	 * dma_addr_t and dma_unmap_single_attrs() is just an alias to
+	 * dma_unmap_page_attrs().
+	 */
+	for (i = 0; i < msg->num_sge; i++)
+		ib_dma_unmap_page(sc->ib.dev,
+				  msg->sge[i].addr,
+				  msg->sge[i].length,
+				  DMA_TO_DEVICE);
+
+	mempool_free(msg, sc->send_io.mem.pool);
+}
+
 /* Called when a RDMA send is done */
 static void send_done(struct ib_cq *cq, struct ib_wc *wc)
 {
-	int i;
 	struct smbdirect_send_io *request =
 		container_of(wc->wr_cqe, struct smbdirect_send_io, cqe);
 	struct smbdirect_socket *sc = request->socket;
+	struct smbdirect_send_io *sibling, *next;
 	int lcredits = 0;
 
 	log_rdma_send(INFO, "smbdirect_send_io 0x%p completed wc->status=%s\n",
 		request, ib_wc_status_msg(wc->status));
 
-	for (i = 0; i < request->num_sge; i++)
-		ib_dma_unmap_single(sc->ib.dev,
-			request->sge[i].addr,
-			request->sge[i].length,
-			DMA_TO_DEVICE);
-	mempool_free(request, sc->send_io.mem.pool);
+	if (unlikely(!(request->wr.send_flags & IB_SEND_SIGNALED))) {
+		/*
+		 * This happens when smbdirect_send_io is a sibling
+		 * before the final message, it is signaled on
+		 * error anyway, so we need to skip
+		 * smbdirect_connection_free_send_io here,
+		 * otherwise is will destroy the memory
+		 * of the siblings too, which will cause
+		 * use after free problems for the others
+		 * triggered from ib_drain_qp().
+		 */
+		if (wc->status != IB_WC_SUCCESS)
+			goto skip_free;
+
+		/*
+		 * This should not happen!
+		 * But we better just close the
+		 * connection...
+		 */
+		log_rdma_send(ERR,
+			"unexpected send completion wc->status=%s (%d) wc->opcode=%d\n",
+			ib_wc_status_msg(wc->status), wc->status, wc->opcode);
+		smbd_disconnect_rdma_connection(sc);
+		return;
+	}
+
+	/*
+	 * Free possible siblings and then the main send_io
+	 */
+	list_for_each_entry_safe(sibling, next, &request->sibling_list, sibling_list) {
+		list_del_init(&sibling->sibling_list);
+		smbd_free_send_io(sibling);
+		lcredits += 1;
+	}
+	/* Note this frees wc->wr_cqe, but not wc */
+	smbd_free_send_io(request);
 	lcredits += 1;
 
 	if (wc->status != IB_WC_SUCCESS || wc->opcode != IB_WC_SEND) {
+skip_free:
 		if (wc->status != IB_WC_WR_FLUSH_ERR)
 			log_rdma_send(ERR, "wc->status=%s wc->opcode=%d\n",
 				ib_wc_status_msg(wc->status), wc->opcode);
@@ -608,6 +688,7 @@ static bool process_negotiation_response(
 			sp->max_frmr_depth * PAGE_SIZE);
 	sp->max_frmr_depth = sp->max_read_write_size / PAGE_SIZE;
 
+	atomic_set(&sc->send_io.bcredits.count, 1);
 	sc->recv_io.expected = SMBDIRECT_EXPECT_DATA_TRANSFER;
 	return true;
 }
@@ -618,6 +699,7 @@ static void smbd_post_send_credits(struct work_struct *work)
 	struct smbdirect_recv_io *response;
 	struct smbdirect_socket *sc =
 		container_of(work, struct smbdirect_socket, recv_io.posted.refill_work);
+	int posted = 0;
 
 	if (sc->status != SMBDIRECT_SOCKET_CONNECTED) {
 		return;
@@ -640,9 +722,21 @@ static void smbd_post_send_credits(struct work_struct *work)
 			}
 
 			atomic_inc(&sc->recv_io.posted.count);
+			posted += 1;
 		}
 	}
 
+	atomic_add(posted, &sc->recv_io.credits.available);
+
+	/*
+	 * If the last send credit is waiting for credits
+	 * it can grant we need to wake it up
+	 */
+	if (posted &&
+	    atomic_read(&sc->send_io.bcredits.count) == 0 &&
+	    atomic_read(&sc->send_io.credits.count) == 0)
+		wake_up(&sc->send_io.credits.wait_queue);
+
 	/* Promptly send an immediate packet as defined in [MS-SMBD] 3.1.1.1 */
 	if (atomic_read(&sc->recv_io.credits.count) <
 		sc->recv_io.credits.target - 1) {
@@ -659,6 +753,7 @@ static void recv_done(struct ib_cq *cq, struct ib_wc *wc)
 		container_of(wc->wr_cqe, struct smbdirect_recv_io, cqe);
 	struct smbdirect_socket *sc = response->socket;
 	struct smbdirect_socket_parameters *sp = &sc->parameters;
+	int current_recv_credits;
 	u16 old_recv_credit_target;
 	u32 data_offset = 0;
 	u32 data_length = 0;
@@ -743,7 +838,8 @@ static void recv_done(struct ib_cq *cq, struct ib_wc *wc)
 		}
 
 		atomic_dec(&sc->recv_io.posted.count);
-		atomic_dec(&sc->recv_io.credits.count);
+		current_recv_credits = atomic_dec_return(&sc->recv_io.credits.count);
+
 		old_recv_credit_target = sc->recv_io.credits.target;
 		sc->recv_io.credits.target =
 			le16_to_cpu(data_transfer->credits_requested);
@@ -779,7 +875,8 @@ static void recv_done(struct ib_cq *cq, struct ib_wc *wc)
 		 * reassembly queue and wake up the reading thread
 		 */
 		if (data_length) {
-			if (sc->recv_io.credits.target > old_recv_credit_target)
+			if (current_recv_credits <= (sc->recv_io.credits.target / 4) ||
+			    sc->recv_io.credits.target > old_recv_credit_target)
 				queue_work(sc->workqueue, &sc->recv_io.posted.refill_work);
 
 			enqueue_reassembly(sc, response, data_length);
@@ -955,16 +1052,13 @@ static int smbd_ia_open(
 static int smbd_post_send_negotiate_req(struct smbdirect_socket *sc)
 {
 	struct smbdirect_socket_parameters *sp = &sc->parameters;
-	struct ib_send_wr send_wr;
-	int rc = -ENOMEM;
+	int rc;
 	struct smbdirect_send_io *request;
 	struct smbdirect_negotiate_req *packet;
 
-	request = mempool_alloc(sc->send_io.mem.pool, GFP_KERNEL);
-	if (!request)
-		return rc;
-
-	request->socket = sc;
+	request = smbd_alloc_send_io(sc);
+	if (IS_ERR(request))
+		return PTR_ERR(request);
 
 	packet = smbdirect_send_io_payload(request);
 	packet->min_version = cpu_to_le16(SMBDIRECT_V1);
@@ -976,7 +1070,6 @@ static int smbd_post_send_negotiate_req(struct smbdirect_socket *sc)
 	packet->max_fragmented_size =
 		cpu_to_le32(sp->max_fragmented_recv_size);
 
-	request->num_sge = 1;
 	request->sge[0].addr = ib_dma_map_single(
 				sc->ib.dev, (void *)packet,
 				sizeof(*packet), DMA_TO_DEVICE);
@@ -984,42 +1077,20 @@ static int smbd_post_send_negotiate_req(struct smbdirect_socket *sc)
 		rc = -EIO;
 		goto dma_mapping_failed;
 	}
+	request->num_sge = 1;
 
 	request->sge[0].length = sizeof(*packet);
 	request->sge[0].lkey = sc->ib.pd->local_dma_lkey;
 
-	ib_dma_sync_single_for_device(
-		sc->ib.dev, request->sge[0].addr,
-		request->sge[0].length, DMA_TO_DEVICE);
-
-	request->cqe.done = send_done;
-
-	send_wr.next = NULL;
-	send_wr.wr_cqe = &request->cqe;
-	send_wr.sg_list = request->sge;
-	send_wr.num_sge = request->num_sge;
-	send_wr.opcode = IB_WR_SEND;
-	send_wr.send_flags = IB_SEND_SIGNALED;
-
-	log_rdma_send(INFO, "sge addr=0x%llx length=%u lkey=0x%x\n",
-		request->sge[0].addr,
-		request->sge[0].length, request->sge[0].lkey);
-
-	atomic_inc(&sc->send_io.pending.count);
-	rc = ib_post_send(sc->ib.qp, &send_wr, NULL);
+	rc = smbd_post_send(sc, NULL, request);
 	if (!rc)
 		return 0;
 
-	/* if we reach here, post send failed */
-	log_rdma_send(ERR, "ib_post_send failed rc=%d\n", rc);
-	atomic_dec(&sc->send_io.pending.count);
-	ib_dma_unmap_single(sc->ib.dev, request->sge[0].addr,
-		request->sge[0].length, DMA_TO_DEVICE);
-
-	smbd_disconnect_rdma_connection(sc);
+	if (rc == -EAGAIN)
+		rc = -EIO;
 
 dma_mapping_failed:
-	mempool_free(request, sc->send_io.mem.pool);
+	smbd_free_send_io(request);
 	return rc;
 }
 
@@ -1033,19 +1104,38 @@ static int smbd_post_send_negotiate_req(struct smbdirect_socket *sc)
  */
 static int manage_credits_prior_sending(struct smbdirect_socket *sc)
 {
+	int missing;
+	int available;
 	int new_credits;
 
 	if (atomic_read(&sc->recv_io.credits.count) >= sc->recv_io.credits.target)
 		return 0;
 
-	new_credits = atomic_read(&sc->recv_io.posted.count);
-	if (new_credits == 0)
+	missing = (int)sc->recv_io.credits.target - atomic_read(&sc->recv_io.credits.count);
+	available = atomic_xchg(&sc->recv_io.credits.available, 0);
+	new_credits = (u16)min3(U16_MAX, missing, available);
+	if (new_credits <= 0) {
+		/*
+		 * If credits are available, but not granted
+		 * we need to re-add them again.
+		 */
+		if (available)
+			atomic_add(available, &sc->recv_io.credits.available);
 		return 0;
+	}
 
-	new_credits -= atomic_read(&sc->recv_io.credits.count);
-	if (new_credits <= 0)
-		return 0;
+	if (new_credits < available) {
+		/*
+		 * Readd the remaining available again.
+		 */
+		available -= new_credits;
+		atomic_add(available, &sc->recv_io.credits.available);
+	}
 
+	/*
+	 * Remember we granted the credits
+	 */
+	atomic_add(new_credits, &sc->recv_io.credits.count);
 	return new_credits;
 }
 
@@ -1075,12 +1165,27 @@ static int manage_keep_alive_before_sending(struct smbdirect_socket *sc)
 	return 0;
 }
 
+static int smbd_ib_post_send(struct smbdirect_socket *sc,
+			     struct ib_send_wr *wr)
+{
+	int ret;
+
+	atomic_inc(&sc->send_io.pending.count);
+	ret = ib_post_send(sc->ib.qp, wr, NULL);
+	if (ret) {
+		pr_err("failed to post send: %d\n", ret);
+		smbd_disconnect_rdma_connection(sc);
+		ret = -EAGAIN;
+	}
+	return ret;
+}
+
 /* Post the send request */
 static int smbd_post_send(struct smbdirect_socket *sc,
-		struct smbdirect_send_io *request)
+			  struct smbdirect_send_batch *batch,
+			  struct smbdirect_send_io *request)
 {
-	struct ib_send_wr send_wr;
-	int rc, i;
+	int i;
 
 	for (i = 0; i < request->num_sge; i++) {
 		log_rdma_send(INFO,
@@ -1094,79 +1199,245 @@ static int smbd_post_send(struct smbdirect_socket *sc,
 	}
 
 	request->cqe.done = send_done;
+	request->wr.next = NULL;
+	request->wr.sg_list = request->sge;
+	request->wr.num_sge = request->num_sge;
+	request->wr.opcode = IB_WR_SEND;
+
+	if (batch) {
+		request->wr.wr_cqe = NULL;
+		request->wr.send_flags = 0;
+		if (!list_empty(&batch->msg_list)) {
+			struct smbdirect_send_io *last;
+
+			last = list_last_entry(&batch->msg_list,
+					       struct smbdirect_send_io,
+					       sibling_list);
+			last->wr.next = &request->wr;
+		}
+		list_add_tail(&request->sibling_list, &batch->msg_list);
+		batch->wr_cnt++;
+		return 0;
+	}
 
-	send_wr.next = NULL;
-	send_wr.wr_cqe = &request->cqe;
-	send_wr.sg_list = request->sge;
-	send_wr.num_sge = request->num_sge;
-	send_wr.opcode = IB_WR_SEND;
-	send_wr.send_flags = IB_SEND_SIGNALED;
+	request->wr.wr_cqe = &request->cqe;
+	request->wr.send_flags = IB_SEND_SIGNALED;
+	return smbd_ib_post_send(sc, &request->wr);
+}
 
-	rc = ib_post_send(sc->ib.qp, &send_wr, NULL);
-	if (rc) {
-		log_rdma_send(ERR, "ib_post_send failed rc=%d\n", rc);
-		smbd_disconnect_rdma_connection(sc);
-		rc = -EAGAIN;
+static void smbd_send_batch_init(struct smbdirect_send_batch *batch,
+				 bool need_invalidate_rkey,
+				 unsigned int remote_key)
+{
+	INIT_LIST_HEAD(&batch->msg_list);
+	batch->wr_cnt = 0;
+	batch->need_invalidate_rkey = need_invalidate_rkey;
+	batch->remote_key = remote_key;
+	batch->credit = 0;
+}
+
+static int smbd_send_batch_flush(struct smbdirect_socket *sc,
+				 struct smbdirect_send_batch *batch,
+				 bool is_last)
+{
+	struct smbdirect_send_io *first, *last;
+	int ret = 0;
+
+	if (list_empty(&batch->msg_list))
+		goto release_credit;
+
+	first = list_first_entry(&batch->msg_list,
+				 struct smbdirect_send_io,
+				 sibling_list);
+	last = list_last_entry(&batch->msg_list,
+			       struct smbdirect_send_io,
+			       sibling_list);
+
+	if (batch->need_invalidate_rkey) {
+		first->wr.opcode = IB_WR_SEND_WITH_INV;
+		first->wr.ex.invalidate_rkey = batch->remote_key;
+		batch->need_invalidate_rkey = false;
+		batch->remote_key = 0;
 	}
 
-	return rc;
+	last->wr.send_flags = IB_SEND_SIGNALED;
+	last->wr.wr_cqe = &last->cqe;
+
+	/*
+	 * Remove last from batch->msg_list
+	 * and splice the rest of batch->msg_list
+	 * to last->sibling_list.
+	 *
+	 * batch->msg_list is a valid empty list
+	 * at the end.
+	 */
+	list_del_init(&last->sibling_list);
+	list_splice_tail_init(&batch->msg_list, &last->sibling_list);
+	batch->wr_cnt = 0;
+
+	ret = smbd_ib_post_send(sc, &first->wr);
+	if (ret) {
+		struct smbdirect_send_io *sibling, *next;
+
+		list_for_each_entry_safe(sibling, next, &last->sibling_list, sibling_list) {
+			list_del_init(&sibling->sibling_list);
+			smbd_free_send_io(sibling);
+		}
+		smbd_free_send_io(last);
+	}
+
+release_credit:
+	if (is_last && !ret && batch->credit) {
+		atomic_add(batch->credit, &sc->send_io.bcredits.count);
+		batch->credit = 0;
+		wake_up(&sc->send_io.bcredits.wait_queue);
+	}
+
+	return ret;
+}
+
+static int wait_for_credits(struct smbdirect_socket *sc,
+			    wait_queue_head_t *waitq, atomic_t *total_credits,
+			    int needed)
+{
+	int ret;
+
+	do {
+		if (atomic_sub_return(needed, total_credits) >= 0)
+			return 0;
+
+		atomic_add(needed, total_credits);
+		ret = wait_event_interruptible(*waitq,
+					       atomic_read(total_credits) >= needed ||
+					       sc->status != SMBDIRECT_SOCKET_CONNECTED);
+
+		if (sc->status != SMBDIRECT_SOCKET_CONNECTED)
+			return -ENOTCONN;
+		else if (ret < 0)
+			return ret;
+	} while (true);
+}
+
+static int wait_for_send_bcredit(struct smbdirect_socket *sc,
+				 struct smbdirect_send_batch *batch)
+{
+	int ret;
+
+	if (batch->credit)
+		return 0;
+
+	ret = wait_for_credits(sc,
+			       &sc->send_io.bcredits.wait_queue,
+			       &sc->send_io.bcredits.count,
+			       1);
+	if (ret)
+		return ret;
+
+	batch->credit = 1;
+	return 0;
+}
+
+static int wait_for_send_lcredit(struct smbdirect_socket *sc,
+				 struct smbdirect_send_batch *batch)
+{
+	if (batch && (atomic_read(&sc->send_io.lcredits.count) <= 1)) {
+		int ret;
+
+		ret = smbd_send_batch_flush(sc, batch, false);
+		if (ret)
+			return ret;
+	}
+
+	return wait_for_credits(sc,
+				&sc->send_io.lcredits.wait_queue,
+				&sc->send_io.lcredits.count,
+				1);
+}
+
+static int wait_for_send_credits(struct smbdirect_socket *sc,
+				 struct smbdirect_send_batch *batch)
+{
+	if (batch &&
+	    (batch->wr_cnt >= 16 || atomic_read(&sc->send_io.credits.count) <= 1)) {
+		int ret;
+
+		ret = smbd_send_batch_flush(sc, batch, false);
+		if (ret)
+			return ret;
+	}
+
+	return wait_for_credits(sc,
+				&sc->send_io.credits.wait_queue,
+				&sc->send_io.credits.count,
+				1);
 }
 
 static int smbd_post_send_iter(struct smbdirect_socket *sc,
+			       struct smbdirect_send_batch *batch,
 			       struct iov_iter *iter,
 			       int *_remaining_data_length)
 {
 	struct smbdirect_socket_parameters *sp = &sc->parameters;
-	int i, rc;
+	int rc;
 	int header_length;
 	int data_length;
 	struct smbdirect_send_io *request;
 	struct smbdirect_data_transfer *packet;
 	int new_credits = 0;
+	struct smbdirect_send_batch _batch;
 
-wait_lcredit:
-	/* Wait for local send credits */
-	rc = wait_event_interruptible(sc->send_io.lcredits.wait_queue,
-		atomic_read(&sc->send_io.lcredits.count) > 0 ||
-		sc->status != SMBDIRECT_SOCKET_CONNECTED);
-	if (rc)
-		goto err_wait_lcredit;
+	if (!batch) {
+		smbd_send_batch_init(&_batch, false, 0);
+		batch = &_batch;
+	}
 
-	if (sc->status != SMBDIRECT_SOCKET_CONNECTED) {
-		log_outgoing(ERR, "disconnected not sending on wait_credit\n");
+	rc = wait_for_send_bcredit(sc, batch);
+	if (rc) {
+		log_outgoing(ERR, "disconnected not sending on wait_bcredit\n");
 		rc = -EAGAIN;
-		goto err_wait_lcredit;
-	}
-	if (unlikely(atomic_dec_return(&sc->send_io.lcredits.count) < 0)) {
-		atomic_inc(&sc->send_io.lcredits.count);
-		goto wait_lcredit;
+		goto err_wait_bcredit;
 	}
 
-wait_credit:
-	/* Wait for send credits. A SMBD packet needs one credit */
-	rc = wait_event_interruptible(sc->send_io.credits.wait_queue,
-		atomic_read(&sc->send_io.credits.count) > 0 ||
-		sc->status != SMBDIRECT_SOCKET_CONNECTED);
-	if (rc)
-		goto err_wait_credit;
+	rc = wait_for_send_lcredit(sc, batch);
+	if (rc) {
+		log_outgoing(ERR, "disconnected not sending on wait_lcredit\n");
+		rc = -EAGAIN;
+		goto err_wait_lcredit;
+	}
 
-	if (sc->status != SMBDIRECT_SOCKET_CONNECTED) {
+	rc = wait_for_send_credits(sc, batch);
+	if (rc) {
 		log_outgoing(ERR, "disconnected not sending on wait_credit\n");
 		rc = -EAGAIN;
 		goto err_wait_credit;
 	}
-	if (unlikely(atomic_dec_return(&sc->send_io.credits.count) < 0)) {
-		atomic_inc(&sc->send_io.credits.count);
-		goto wait_credit;
+
+	new_credits = manage_credits_prior_sending(sc);
+	if (new_credits == 0 &&
+	    atomic_read(&sc->send_io.credits.count) == 0 &&
+	    atomic_read(&sc->recv_io.credits.count) == 0) {
+		queue_work(sc->workqueue, &sc->recv_io.posted.refill_work);
+		rc = wait_event_interruptible(sc->send_io.credits.wait_queue,
+					      atomic_read(&sc->send_io.credits.count) >= 1 ||
+					      atomic_read(&sc->recv_io.credits.available) >= 1 ||
+					      sc->status != SMBDIRECT_SOCKET_CONNECTED);
+		if (sc->status != SMBDIRECT_SOCKET_CONNECTED)
+			rc = -ENOTCONN;
+		if (rc < 0) {
+			log_outgoing(ERR, "disconnected not sending on last credit\n");
+			rc = -EAGAIN;
+			goto err_wait_credit;
+		}
+
+		new_credits = manage_credits_prior_sending(sc);
 	}
 
-	request = mempool_alloc(sc->send_io.mem.pool, GFP_KERNEL);
-	if (!request) {
-		rc = -ENOMEM;
+	request = smbd_alloc_send_io(sc);
+	if (IS_ERR(request)) {
+		rc = PTR_ERR(request);
 		goto err_alloc;
 	}
 
-	request->socket = sc;
 	memset(request->sge, 0, sizeof(request->sge));
 
 	/* Map the packet to DMA */
@@ -1215,9 +1486,6 @@ static int smbd_post_send_iter(struct smbdirect_socket *sc,
 
 	/* Fill in the packet header */
 	packet->credits_requested = cpu_to_le16(sp->send_credit_target);
-
-	new_credits = manage_credits_prior_sending(sc);
-	atomic_add(new_credits, &sc->recv_io.credits.count);
 	packet->credits_granted = cpu_to_le16(new_credits);
 
 	packet->flags = 0;
@@ -1240,32 +1508,18 @@ static int smbd_post_send_iter(struct smbdirect_socket *sc,
 		     le32_to_cpu(packet->data_length),
 		     le32_to_cpu(packet->remaining_data_length));
 
-	/*
-	 * Now that we got a local and a remote credit
-	 * we add us as pending
-	 */
-	atomic_inc(&sc->send_io.pending.count);
-
-	rc = smbd_post_send(sc, request);
-	if (!rc)
-		return 0;
-
-	if (atomic_dec_and_test(&sc->send_io.pending.count))
-		wake_up(&sc->send_io.pending.zero_wait_queue);
+	rc = smbd_post_send(sc, batch, request);
+	if (!rc) {
+		if (batch != &_batch)
+			return 0;
 
-	wake_up(&sc->send_io.pending.dec_wait_queue);
+		rc = smbd_send_batch_flush(sc, batch, true);
+		if (!rc)
+			return 0;
+	}
 
 err_dma:
-	for (i = 0; i < request->num_sge; i++)
-		if (request->sge[i].addr)
-			ib_dma_unmap_single(sc->ib.dev,
-					    request->sge[i].addr,
-					    request->sge[i].length,
-					    DMA_TO_DEVICE);
-	mempool_free(request, sc->send_io.mem.pool);
-
-	/* roll back the granted receive credits */
-	atomic_sub(new_credits, &sc->recv_io.credits.count);
+	smbd_free_send_io(request);
 
 err_alloc:
 	atomic_inc(&sc->send_io.credits.count);
@@ -1276,6 +1530,11 @@ static int smbd_post_send_iter(struct smbdirect_socket *sc,
 	wake_up(&sc->send_io.lcredits.wait_queue);
 
 err_wait_lcredit:
+	atomic_add(batch->credit, &sc->send_io.bcredits.count);
+	batch->credit = 0;
+	wake_up(&sc->send_io.bcredits.wait_queue);
+
+err_wait_bcredit:
 	return rc;
 }
 
@@ -1289,10 +1548,11 @@ static int smbd_post_send_empty(struct smbdirect_socket *sc)
 	int remaining_data_length = 0;
 
 	sc->statistics.send_empty++;
-	return smbd_post_send_iter(sc, NULL, &remaining_data_length);
+	return smbd_post_send_iter(sc, NULL, NULL, &remaining_data_length);
 }
 
 static int smbd_post_send_full_iter(struct smbdirect_socket *sc,
+				    struct smbdirect_send_batch *batch,
 				    struct iov_iter *iter,
 				    int *_remaining_data_length)
 {
@@ -1305,7 +1565,7 @@ static int smbd_post_send_full_iter(struct smbdirect_socket *sc,
 	 */
 
 	while (iov_iter_count(iter) > 0) {
-		rc = smbd_post_send_iter(sc, iter, _remaining_data_length);
+		rc = smbd_post_send_iter(sc, batch, iter, _remaining_data_length);
 		if (rc < 0)
 			break;
 	}
@@ -2227,8 +2487,10 @@ int smbd_send(struct TCP_Server_Info *server,
 	struct smbdirect_socket_parameters *sp = &sc->parameters;
 	struct smb_rqst *rqst;
 	struct iov_iter iter;
+	struct smbdirect_send_batch batch;
 	unsigned int remaining_data_length, klen;
 	int rc, i, rqst_idx;
+	int error = 0;
 
 	if (sc->status != SMBDIRECT_SOCKET_CONNECTED)
 		return -EAGAIN;
@@ -2253,6 +2515,7 @@ int smbd_send(struct TCP_Server_Info *server,
 			num_rqst, remaining_data_length);
 
 	rqst_idx = 0;
+	smbd_send_batch_init(&batch, false, 0);
 	do {
 		rqst = &rqst_array[rqst_idx];
 
@@ -2271,20 +2534,28 @@ int smbd_send(struct TCP_Server_Info *server,
 			klen += rqst->rq_iov[i].iov_len;
 		iov_iter_kvec(&iter, ITER_SOURCE, rqst->rq_iov, rqst->rq_nvec, klen);
 
-		rc = smbd_post_send_full_iter(sc, &iter, &remaining_data_length);
-		if (rc < 0)
+		rc = smbd_post_send_full_iter(sc, &batch, &iter, &remaining_data_length);
+		if (rc < 0) {
+			error = rc;
 			break;
+		}
 
 		if (iov_iter_count(&rqst->rq_iter) > 0) {
 			/* And then the data pages if there are any */
-			rc = smbd_post_send_full_iter(sc, &rqst->rq_iter,
+			rc = smbd_post_send_full_iter(sc, &batch, &rqst->rq_iter,
 						      &remaining_data_length);
-			if (rc < 0)
+			if (rc < 0) {
+				error = rc;
 				break;
+			}
 		}
 
 	} while (++rqst_idx < num_rqst);
 
+	rc = smbd_send_batch_flush(sc, &batch, true);
+	if (unlikely(!rc && error))
+		rc = error;
+
 	/*
 	 * As an optimization, we don't wait for individual I/O to finish
 	 * before sending the next one.
diff --git a/fs/smb/common/smbdirect/smbdirect_socket.h b/fs/smb/common/smbdirect/smbdirect_socket.h
index ee4c2726771a..95265192bb01 100644
--- a/fs/smb/common/smbdirect/smbdirect_socket.h
+++ b/fs/smb/common/smbdirect/smbdirect_socket.h
@@ -162,6 +162,17 @@ struct smbdirect_socket {
 			mempool_t		*pool;
 		} mem;
 
+		/*
+		 * This is a coordination for smbdirect_send_batch.
+		 *
+		 * There's only one possible credit, which means
+		 * only one instance is running at a time.
+		 */
+		struct {
+			atomic_t count;
+			wait_queue_head_t wait_queue;
+		} bcredits;
+
 		/*
 		 * The local credit state for ib_post_send()
 		 */
@@ -239,6 +250,7 @@ struct smbdirect_socket {
 		 */
 		struct {
 			u16 target;
+			atomic_t available;
 			atomic_t count;
 		} credits;
 
@@ -370,6 +382,9 @@ static __always_inline void smbdirect_socket_init(struct smbdirect_socket *sc)
 	INIT_DELAYED_WORK(&sc->idle.timer_work, __smbdirect_socket_disabled_work);
 	disable_delayed_work_sync(&sc->idle.timer_work);
 
+	atomic_set(&sc->send_io.bcredits.count, 0);
+	init_waitqueue_head(&sc->send_io.bcredits.wait_queue);
+
 	atomic_set(&sc->send_io.lcredits.count, 0);
 	init_waitqueue_head(&sc->send_io.lcredits.wait_queue);
 
@@ -387,6 +402,7 @@ static __always_inline void smbdirect_socket_init(struct smbdirect_socket *sc)
 	INIT_WORK(&sc->recv_io.posted.refill_work, __smbdirect_socket_disabled_work);
 	disable_work_sync(&sc->recv_io.posted.refill_work);
 
+	atomic_set(&sc->recv_io.credits.available, 0);
 	atomic_set(&sc->recv_io.credits.count, 0);
 
 	INIT_LIST_HEAD(&sc->recv_io.reassembly.list);
@@ -483,6 +499,8 @@ struct smbdirect_send_batch {
 	 */
 	bool need_invalidate_rkey;
 	u32 remote_key;
+
+	int credit;
 };
 
 struct smbdirect_recv_io {
diff --git a/fs/smb/server/mgmt/user_session.c b/fs/smb/server/mgmt/user_session.c
index 7d880ff34402..26cb87625f1c 100644
--- a/fs/smb/server/mgmt/user_session.c
+++ b/fs/smb/server/mgmt/user_session.c
@@ -32,12 +32,14 @@ static void free_channel_list(struct ksmbd_session *sess)
 	struct channel *chann;
 	unsigned long index;
 
+	down_write(&sess->chann_lock);
 	xa_for_each(&sess->ksmbd_chann_list, index, chann) {
 		xa_erase(&sess->ksmbd_chann_list, index);
 		kfree(chann);
 	}
 
 	xa_destroy(&sess->ksmbd_chann_list);
+	up_write(&sess->chann_lock);
 }
 
 static void __session_rpc_close(struct ksmbd_session *sess,
@@ -220,7 +222,9 @@ static int ksmbd_chann_del(struct ksmbd_conn *conn, struct ksmbd_session *sess)
 {
 	struct channel *chann;
 
+	down_write(&sess->chann_lock);
 	chann = xa_erase(&sess->ksmbd_chann_list, (long)conn);
+	up_write(&sess->chann_lock);
 	if (!chann)
 		return -ENOENT;
 
@@ -454,6 +458,7 @@ static struct ksmbd_session *__session_create(int protocol)
 	rwlock_init(&sess->tree_conns_lock);
 	atomic_set(&sess->refcnt, 2);
 	init_rwsem(&sess->rpc_lock);
+	init_rwsem(&sess->chann_lock);
 
 	ret = __init_smb2_session(sess);
 	if (ret)
diff --git a/fs/smb/server/mgmt/user_session.h b/fs/smb/server/mgmt/user_session.h
index c5749d6ec715..cba7f688f6b5 100644
--- a/fs/smb/server/mgmt/user_session.h
+++ b/fs/smb/server/mgmt/user_session.h
@@ -49,6 +49,7 @@ struct ksmbd_session {
 	char				sess_key[CIFS_KEY_SIZE];
 
 	struct hlist_node		hlist;
+	struct rw_semaphore		chann_lock;
 	struct xarray			ksmbd_chann_list;
 	struct xarray			tree_conns;
 	struct ida			tree_conn_ida;
diff --git a/fs/smb/server/server.c b/fs/smb/server/server.c
index 554ae90df906..d2410a3f163a 100644
--- a/fs/smb/server/server.c
+++ b/fs/smb/server/server.c
@@ -126,21 +126,21 @@ static int __process_request(struct ksmbd_work *work, struct ksmbd_conn *conn,
 andx_again:
 	if (command >= conn->max_cmds) {
 		conn->ops->set_rsp_status(work, STATUS_INVALID_PARAMETER);
-		return SERVER_HANDLER_CONTINUE;
+		return SERVER_HANDLER_ABORT;
 	}
 
 	cmds = &conn->cmds[command];
 	if (!cmds->proc) {
 		ksmbd_debug(SMB, "*** not implemented yet cmd = %x\n", command);
 		conn->ops->set_rsp_status(work, STATUS_NOT_IMPLEMENTED);
-		return SERVER_HANDLER_CONTINUE;
+		return SERVER_HANDLER_ABORT;
 	}
 
 	if (work->sess && conn->ops->is_sign_req(work, command)) {
 		ret = conn->ops->check_sign_req(work);
 		if (!ret) {
 			conn->ops->set_rsp_status(work, STATUS_ACCESS_DENIED);
-			return SERVER_HANDLER_CONTINUE;
+			return SERVER_HANDLER_ABORT;
 		}
 	}
 
diff --git a/fs/smb/server/smb2pdu.c b/fs/smb/server/smb2pdu.c
index 2fcd0d4d1fb0..4c361c6c566e 100644
--- a/fs/smb/server/smb2pdu.c
+++ b/fs/smb/server/smb2pdu.c
@@ -79,7 +79,13 @@ static inline bool check_session_id(struct ksmbd_conn *conn, u64 id)
 
 struct channel *lookup_chann_list(struct ksmbd_session *sess, struct ksmbd_conn *conn)
 {
-	return xa_load(&sess->ksmbd_chann_list, (long)conn);
+	struct channel *chann;
+
+	down_read(&sess->chann_lock);
+	chann = xa_load(&sess->ksmbd_chann_list, (long)conn);
+	up_read(&sess->chann_lock);
+
+	return chann;
 }
 
 /**
@@ -1558,8 +1564,10 @@ static int ntlm_authenticate(struct ksmbd_work *work,
 				return -ENOMEM;
 
 			chann->conn = conn;
+			down_write(&sess->chann_lock);
 			old = xa_store(&sess->ksmbd_chann_list, (long)conn, chann,
 					KSMBD_DEFAULT_GFP);
+			up_write(&sess->chann_lock);
 			if (xa_is_err(old)) {
 				kfree(chann);
 				return xa_err(old);
@@ -1651,8 +1659,10 @@ static int krb5_authenticate(struct ksmbd_work *work,
 				return -ENOMEM;
 
 			chann->conn = conn;
+			down_write(&sess->chann_lock);
 			old = xa_store(&sess->ksmbd_chann_list, (long)conn,
 					chann, KSMBD_DEFAULT_GFP);
+			up_write(&sess->chann_lock);
 			if (xa_is_err(old)) {
 				kfree(chann);
 				return xa_err(old);
diff --git a/fs/smb/server/transport_rdma.c b/fs/smb/server/transport_rdma.c
index e4273932e7e4..c94068b78a1d 100644
--- a/fs/smb/server/transport_rdma.c
+++ b/fs/smb/server/transport_rdma.c
@@ -221,6 +221,7 @@ static void smb_direct_disconnect_wake_up_all(struct smbdirect_socket *sc)
 	 * in order to notice the broken connection.
 	 */
 	wake_up_all(&sc->status_wait);
+	wake_up_all(&sc->send_io.bcredits.wait_queue);
 	wake_up_all(&sc->send_io.lcredits.wait_queue);
 	wake_up_all(&sc->send_io.credits.wait_queue);
 	wake_up_all(&sc->send_io.pending.zero_wait_queue);
@@ -644,6 +645,7 @@ static void recv_done(struct ib_cq *cq, struct ib_wc *wc)
 		struct smbdirect_data_transfer *data_transfer =
 			(struct smbdirect_data_transfer *)recvmsg->packet;
 		u32 remaining_data_length, data_offset, data_length;
+		int current_recv_credits;
 		u16 old_recv_credit_target;
 
 		if (wc->byte_len <
@@ -682,7 +684,7 @@ static void recv_done(struct ib_cq *cq, struct ib_wc *wc)
 		}
 
 		atomic_dec(&sc->recv_io.posted.count);
-		atomic_dec(&sc->recv_io.credits.count);
+		current_recv_credits = atomic_dec_return(&sc->recv_io.credits.count);
 
 		old_recv_credit_target = sc->recv_io.credits.target;
 		sc->recv_io.credits.target =
@@ -702,7 +704,8 @@ static void recv_done(struct ib_cq *cq, struct ib_wc *wc)
 			wake_up(&sc->send_io.credits.wait_queue);
 
 		if (data_length) {
-			if (sc->recv_io.credits.target > old_recv_credit_target)
+			if (current_recv_credits <= (sc->recv_io.credits.target / 4) ||
+			    sc->recv_io.credits.target > old_recv_credit_target)
 				queue_work(sc->workqueue, &sc->recv_io.posted.refill_work);
 
 			enqueue_reassembly(sc, recvmsg, (int)data_length);
@@ -1028,6 +1031,17 @@ static void smb_direct_post_recv_credits(struct work_struct *work)
 		}
 	}
 
+	atomic_add(credits, &sc->recv_io.credits.available);
+
+	/*
+	 * If the last send credit is waiting for credits
+	 * it can grant we need to wake it up
+	 */
+	if (credits &&
+	    atomic_read(&sc->send_io.bcredits.count) == 0 &&
+	    atomic_read(&sc->send_io.credits.count) == 0)
+		wake_up(&sc->send_io.credits.wait_queue);
+
 	if (credits)
 		queue_work(sc->workqueue, &sc->idle.immediate_work);
 }
@@ -1045,6 +1059,31 @@ static void send_done(struct ib_cq *cq, struct ib_wc *wc)
 		    ib_wc_status_msg(wc->status), wc->status,
 		    wc->opcode);
 
+	if (unlikely(!(sendmsg->wr.send_flags & IB_SEND_SIGNALED))) {
+		/*
+		 * This happens when smbdirect_send_io is a sibling
+		 * before the final message, it is signaled on
+		 * error anyway, so we need to skip
+		 * smbdirect_connection_free_send_io here,
+		 * otherwise is will destroy the memory
+		 * of the siblings too, which will cause
+		 * use after free problems for the others
+		 * triggered from ib_drain_qp().
+		 */
+		if (wc->status != IB_WC_SUCCESS)
+			goto skip_free;
+
+		/*
+		 * This should not happen!
+		 * But we better just close the
+		 * connection...
+		 */
+		pr_err("unexpected send completion wc->status=%s (%d) wc->opcode=%d\n",
+		       ib_wc_status_msg(wc->status), wc->status, wc->opcode);
+		smb_direct_disconnect_rdma_connection(sc);
+		return;
+	}
+
 	/*
 	 * Free possible siblings and then the main send_io
 	 */
@@ -1058,6 +1097,7 @@ static void send_done(struct ib_cq *cq, struct ib_wc *wc)
 	lcredits += 1;
 
 	if (wc->status != IB_WC_SUCCESS || wc->opcode != IB_WC_SEND) {
+skip_free:
 		pr_err("Send error. status='%s (%d)', opcode=%d\n",
 		       ib_wc_status_msg(wc->status), wc->status,
 		       wc->opcode);
@@ -1074,19 +1114,37 @@ static void send_done(struct ib_cq *cq, struct ib_wc *wc)
 
 static int manage_credits_prior_sending(struct smbdirect_socket *sc)
 {
+	int missing;
+	int available;
 	int new_credits;
 
 	if (atomic_read(&sc->recv_io.credits.count) >= sc->recv_io.credits.target)
 		return 0;
 
-	new_credits = atomic_read(&sc->recv_io.posted.count);
-	if (new_credits == 0)
+	missing = (int)sc->recv_io.credits.target - atomic_read(&sc->recv_io.credits.count);
+	available = atomic_xchg(&sc->recv_io.credits.available, 0);
+	new_credits = (u16)min3(U16_MAX, missing, available);
+	if (new_credits <= 0) {
+		/*
+		 * If credits are available, but not granted
+		 * we need to re-add them again.
+		 */
+		if (available)
+			atomic_add(available, &sc->recv_io.credits.available);
 		return 0;
+	}
 
-	new_credits -= atomic_read(&sc->recv_io.credits.count);
-	if (new_credits <= 0)
-		return 0;
+	if (new_credits < available) {
+		/*
+		 * Readd the remaining available again.
+		 */
+		available -= new_credits;
+		atomic_add(available, &sc->recv_io.credits.available);
+	}
 
+	/*
+	 * Remember we granted the credits
+	 */
 	atomic_add(new_credits, &sc->recv_io.credits.count);
 	return new_credits;
 }
@@ -1130,6 +1188,7 @@ static void smb_direct_send_ctx_init(struct smbdirect_send_batch *send_ctx,
 	send_ctx->wr_cnt = 0;
 	send_ctx->need_invalidate_rkey = need_invalidate_rkey;
 	send_ctx->remote_key = remote_key;
+	send_ctx->credit = 0;
 }
 
 static int smb_direct_flush_send_list(struct smbdirect_socket *sc,
@@ -1137,10 +1196,10 @@ static int smb_direct_flush_send_list(struct smbdirect_socket *sc,
 				      bool is_last)
 {
 	struct smbdirect_send_io *first, *last;
-	int ret;
+	int ret = 0;
 
 	if (list_empty(&send_ctx->msg_list))
-		return 0;
+		goto release_credit;
 
 	first = list_first_entry(&send_ctx->msg_list,
 				 struct smbdirect_send_io,
@@ -1182,6 +1241,13 @@ static int smb_direct_flush_send_list(struct smbdirect_socket *sc,
 		smb_direct_free_sendmsg(sc, last);
 	}
 
+release_credit:
+	if (is_last && !ret && send_ctx->credit) {
+		atomic_add(send_ctx->credit, &sc->send_io.bcredits.count);
+		send_ctx->credit = 0;
+		wake_up(&sc->send_io.bcredits.wait_queue);
+	}
+
 	return ret;
 }
 
@@ -1207,6 +1273,25 @@ static int wait_for_credits(struct smbdirect_socket *sc,
 	} while (true);
 }
 
+static int wait_for_send_bcredit(struct smbdirect_socket *sc,
+				 struct smbdirect_send_batch *send_ctx)
+{
+	int ret;
+
+	if (send_ctx->credit)
+		return 0;
+
+	ret = wait_for_credits(sc,
+			       &sc->send_io.bcredits.wait_queue,
+			       &sc->send_io.bcredits.count,
+			       1);
+	if (ret)
+		return ret;
+
+	send_ctx->credit = 1;
+	return 0;
+}
+
 static int wait_for_send_lcredit(struct smbdirect_socket *sc,
 				 struct smbdirect_send_batch *send_ctx)
 {
@@ -1256,6 +1341,7 @@ static int calc_rw_credits(struct smbdirect_socket *sc,
 
 static int smb_direct_create_header(struct smbdirect_socket *sc,
 				    int size, int remaining_data_length,
+				    int new_credits,
 				    struct smbdirect_send_io **sendmsg_out)
 {
 	struct smbdirect_socket_parameters *sp = &sc->parameters;
@@ -1271,7 +1357,7 @@ static int smb_direct_create_header(struct smbdirect_socket *sc,
 	/* Fill in the packet header */
 	packet = (struct smbdirect_data_transfer *)sendmsg->packet;
 	packet->credits_requested = cpu_to_le16(sp->send_credit_target);
-	packet->credits_granted = cpu_to_le16(manage_credits_prior_sending(sc));
+	packet->credits_granted = cpu_to_le16(new_credits);
 
 	packet->flags = 0;
 	if (manage_keep_alive_before_sending(sc))
@@ -1408,6 +1494,17 @@ static int smb_direct_post_send_data(struct smbdirect_socket *sc,
 	struct smbdirect_send_io *msg;
 	int data_length;
 	struct scatterlist sg[SMBDIRECT_SEND_IO_MAX_SGE - 1];
+	struct smbdirect_send_batch _send_ctx;
+	int new_credits;
+
+	if (!send_ctx) {
+		smb_direct_send_ctx_init(&_send_ctx, false, 0);
+		send_ctx = &_send_ctx;
+	}
+
+	ret = wait_for_send_bcredit(sc, send_ctx);
+	if (ret)
+		goto bcredit_failed;
 
 	ret = wait_for_send_lcredit(sc, send_ctx);
 	if (ret)
@@ -1417,12 +1514,29 @@ static int smb_direct_post_send_data(struct smbdirect_socket *sc,
 	if (ret)
 		goto credit_failed;
 
+	new_credits = manage_credits_prior_sending(sc);
+	if (new_credits == 0 &&
+	    atomic_read(&sc->send_io.credits.count) == 0 &&
+	    atomic_read(&sc->recv_io.credits.count) == 0) {
+		queue_work(sc->workqueue, &sc->recv_io.posted.refill_work);
+		ret = wait_event_interruptible(sc->send_io.credits.wait_queue,
+					       atomic_read(&sc->send_io.credits.count) >= 1 ||
+					       atomic_read(&sc->recv_io.credits.available) >= 1 ||
+					       sc->status != SMBDIRECT_SOCKET_CONNECTED);
+		if (sc->status != SMBDIRECT_SOCKET_CONNECTED)
+			ret = -ENOTCONN;
+		if (ret < 0)
+			goto credit_failed;
+
+		new_credits = manage_credits_prior_sending(sc);
+	}
+
 	data_length = 0;
 	for (i = 0; i < niov; i++)
 		data_length += iov[i].iov_len;
 
 	ret = smb_direct_create_header(sc, data_length, remaining_data_length,
-				       &msg);
+				       new_credits, &msg);
 	if (ret)
 		goto header_failed;
 
@@ -1460,6 +1574,13 @@ static int smb_direct_post_send_data(struct smbdirect_socket *sc,
 	ret = post_sendmsg(sc, send_ctx, msg);
 	if (ret)
 		goto err;
+
+	if (send_ctx == &_send_ctx) {
+		ret = smb_direct_flush_send_list(sc, send_ctx, true);
+		if (ret)
+			goto err;
+	}
+
 	return 0;
 err:
 	smb_direct_free_sendmsg(sc, msg);
@@ -1468,6 +1589,9 @@ static int smb_direct_post_send_data(struct smbdirect_socket *sc,
 credit_failed:
 	atomic_inc(&sc->send_io.lcredits.count);
 lcredit_failed:
+	atomic_add(send_ctx->credit, &sc->send_io.bcredits.count);
+	send_ctx->credit = 0;
+bcredit_failed:
 	return ret;
 }
 
@@ -1939,6 +2063,7 @@ static int smb_direct_send_negotiate_response(struct smbdirect_socket *sc,
 		resp->max_fragmented_size =
 				cpu_to_le32(sp->max_fragmented_recv_size);
 
+		atomic_set(&sc->send_io.bcredits.count, 1);
 		sc->recv_io.expected = SMBDIRECT_EXPECT_DATA_TRANSFER;
 		sc->status = SMBDIRECT_SOCKET_CONNECTED;
 	}
diff --git a/fs/smb/server/transport_tcp.c b/fs/smb/server/transport_tcp.c
index 4bb07937d7ef..2436dabada95 100644
--- a/fs/smb/server/transport_tcp.c
+++ b/fs/smb/server/transport_tcp.c
@@ -40,6 +40,7 @@ static const struct ksmbd_transport_ops ksmbd_tcp_transport_ops;
 
 static void tcp_stop_kthread(struct task_struct *kthread);
 static struct interface *alloc_iface(char *ifname);
+static void ksmbd_tcp_disconnect(struct ksmbd_transport *t);
 
 #define KSMBD_TRANS(t)	(&(t)->transport)
 #define TCP_TRANS(t)	((struct tcp_transport *)container_of(t, \
@@ -202,7 +203,7 @@ static int ksmbd_tcp_new_connection(struct socket *client_sk)
 	if (IS_ERR(handler)) {
 		pr_err("cannot start conn thread\n");
 		rc = PTR_ERR(handler);
-		free_transport(t);
+		ksmbd_tcp_disconnect(KSMBD_TRANS(t));
 	}
 	return rc;
 }
diff --git a/fs/xfs/scrub/btree.c b/fs/xfs/scrub/btree.c
index cd6f0ff382a7..acade92c5fce 100644
--- a/fs/xfs/scrub/btree.c
+++ b/fs/xfs/scrub/btree.c
@@ -370,12 +370,15 @@ xchk_btree_check_block_owner(
 {
 	xfs_agnumber_t		agno;
 	xfs_agblock_t		agbno;
+	bool			is_bnobt, is_rmapbt;
 	bool			init_sa;
 	int			error = 0;
 
 	if (!bs->cur)
 		return 0;
 
+	is_bnobt = xfs_btree_is_bno(bs->cur->bc_ops);
+	is_rmapbt = xfs_btree_is_rmap(bs->cur->bc_ops);
 	agno = xfs_daddr_to_agno(bs->cur->bc_mp, daddr);
 	agbno = xfs_daddr_to_agbno(bs->cur->bc_mp, daddr);
 
@@ -398,11 +401,11 @@ xchk_btree_check_block_owner(
 	 * have to nullify it (to shut down further block owner checks) if
 	 * self-xref encounters problems.
 	 */
-	if (!bs->sc->sa.bno_cur && xfs_btree_is_bno(bs->cur->bc_ops))
+	if (!bs->sc->sa.bno_cur && is_bnobt)
 		bs->cur = NULL;
 
 	xchk_xref_is_only_owned_by(bs->sc, agbno, 1, bs->oinfo);
-	if (!bs->sc->sa.rmap_cur && xfs_btree_is_rmap(bs->cur->bc_ops))
+	if (!bs->sc->sa.rmap_cur && is_rmapbt)
 		bs->cur = NULL;
 
 out_free:
diff --git a/io_uring/io-wq.c b/io_uring/io-wq.c
index 2fa7d3601edb..f42d573b5b17 100644
--- a/io_uring/io-wq.c
+++ b/io_uring/io-wq.c
@@ -34,6 +34,7 @@ enum {
 
 enum {
 	IO_WQ_BIT_EXIT		= 0,	/* wq exiting */
+	IO_WQ_BIT_EXIT_ON_IDLE	= 1,	/* allow all workers to exit on idle */
 };
 
 enum {
@@ -706,9 +707,13 @@ static int io_wq_worker(void *data)
 		raw_spin_lock(&acct->workers_lock);
 		/*
 		 * Last sleep timed out. Exit if we're not the last worker,
-		 * or if someone modified our affinity.
+		 * or if someone modified our affinity. If wq is marked
+		 * idle-exit, drop the worker as well. This is used to avoid
+		 * keeping io-wq workers around for tasks that no longer have
+		 * any active io_uring instances.
 		 */
-		if (last_timeout && (exit_mask || acct->nr_workers > 1)) {
+		if ((last_timeout && (exit_mask || acct->nr_workers > 1)) ||
+		    test_bit(IO_WQ_BIT_EXIT_ON_IDLE, &wq->state)) {
 			acct->nr_workers--;
 			raw_spin_unlock(&acct->workers_lock);
 			__set_current_state(TASK_RUNNING);
@@ -963,6 +968,24 @@ static bool io_wq_worker_wake(struct io_worker *worker, void *data)
 	return false;
 }
 
+void io_wq_set_exit_on_idle(struct io_wq *wq, bool enable)
+{
+	if (!wq->task)
+		return;
+
+	if (!enable) {
+		clear_bit(IO_WQ_BIT_EXIT_ON_IDLE, &wq->state);
+		return;
+	}
+
+	if (test_and_set_bit(IO_WQ_BIT_EXIT_ON_IDLE, &wq->state))
+		return;
+
+	rcu_read_lock();
+	io_wq_for_each_worker(wq, io_wq_worker_wake, NULL);
+	rcu_read_unlock();
+}
+
 static void io_run_cancel(struct io_wq_work *work, struct io_wq *wq)
 {
 	do {
diff --git a/io_uring/io-wq.h b/io_uring/io-wq.h
index 774abab54732..94b14742b703 100644
--- a/io_uring/io-wq.h
+++ b/io_uring/io-wq.h
@@ -41,6 +41,7 @@ struct io_wq_data {
 struct io_wq *io_wq_create(unsigned bounded, struct io_wq_data *data);
 void io_wq_exit_start(struct io_wq *wq);
 void io_wq_put_and_exit(struct io_wq *wq);
+void io_wq_set_exit_on_idle(struct io_wq *wq, bool enable);
 
 void io_wq_enqueue(struct io_wq *wq, struct io_wq_work *work);
 void io_wq_hash_work(struct io_wq_work *work, void *val);
diff --git a/io_uring/tctx.c b/io_uring/tctx.c
index 6d6f44215ec8..91f4b830b77b 100644
--- a/io_uring/tctx.c
+++ b/io_uring/tctx.c
@@ -122,6 +122,14 @@ int __io_uring_add_tctx_node(struct io_ring_ctx *ctx)
 				return ret;
 		}
 	}
+
+	/*
+	 * Re-activate io-wq keepalive on any new io_uring usage. The wq may have
+	 * been marked for idle-exit when the task temporarily had no active
+	 * io_uring instances.
+	 */
+	if (tctx->io_wq)
+		io_wq_set_exit_on_idle(tctx->io_wq, false);
 	if (!xa_load(&tctx->xa, (unsigned long)ctx)) {
 		node = kmalloc(sizeof(*node), GFP_KERNEL);
 		if (!node)
@@ -183,6 +191,9 @@ __cold void io_uring_del_tctx_node(unsigned long index)
 	if (tctx->last == node->ctx)
 		tctx->last = NULL;
 	kfree(node);
+
+	if (xa_empty(&tctx->xa) && tctx->io_wq)
+		io_wq_set_exit_on_idle(tctx->io_wq, true);
 }
 
 __cold void io_uring_clean_tctx(struct io_uring_task *tctx)
diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index 854984967fe2..61c2d65156b5 100644
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -10729,10 +10729,9 @@ void sched_mm_cid_exit(struct task_struct *t)
 					return;
 				/*
 				 * Mode change. The task has the CID unset
-				 * already. The CPU CID is still valid and
-				 * does not have MM_CID_TRANSIT set as the
-				 * mode change has just taken effect under
-				 * mm::mm_cid::lock. Drop it.
+				 * already and dealt with an eventually set
+				 * TRANSIT bit. If the CID is owned by the CPU
+				 * then drop it.
 				 */
 				mm_drop_cid_on_cpu(mm, this_cpu_ptr(mm->mm_cid.pcpu));
 			}
diff --git a/kernel/sched/sched.h b/kernel/sched/sched.h
index bd350e40859d..1b4283e9edc3 100644
--- a/kernel/sched/sched.h
+++ b/kernel/sched/sched.h
@@ -3758,8 +3758,10 @@ static __always_inline void mm_unset_cid_on_task(struct task_struct *t)
 static __always_inline void mm_drop_cid_on_cpu(struct mm_struct *mm, struct mm_cid_pcpu *pcp)
 {
 	/* Clear the ONCPU bit, but do not set UNSET in the per CPU storage */
-	pcp->cid = cpu_cid_to_cid(pcp->cid);
-	mm_drop_cid(mm, pcp->cid);
+	if (cid_on_cpu(pcp->cid)) {
+		pcp->cid = cpu_cid_to_cid(pcp->cid);
+		mm_drop_cid(mm, pcp->cid);
+	}
 }
 
 static inline unsigned int __mm_get_cid(struct mm_struct *mm, unsigned int max_cids)
diff --git a/sound/hda/codecs/conexant.c b/sound/hda/codecs/conexant.c
index 5fcbc1312c69..d6fba7460301 100644
--- a/sound/hda/codecs/conexant.c
+++ b/sound/hda/codecs/conexant.c
@@ -1081,6 +1081,7 @@ static const struct hda_quirk cxt5066_fixups[] = {
 	SND_PCI_QUIRK(0x103c, 0x8174, "HP Spectre x360", CXT_FIXUP_HP_SPECTRE),
 	SND_PCI_QUIRK(0x103c, 0x822e, "HP ProBook 440 G4", CXT_FIXUP_MUTE_LED_GPIO),
 	SND_PCI_QUIRK(0x103c, 0x8231, "HP ProBook 450 G4", CXT_FIXUP_MUTE_LED_GPIO),
+	SND_PCI_QUIRK(0x103c, 0x826b, "HP ZBook Studio G4", CXT_FIXUP_MUTE_LED_GPIO),
 	SND_PCI_QUIRK(0x103c, 0x828c, "HP EliteBook 840 G4", CXT_FIXUP_HP_DOCK),
 	SND_PCI_QUIRK(0x103c, 0x8299, "HP 800 G3 SFF", CXT_FIXUP_HP_MIC_NO_PRESENCE),
 	SND_PCI_QUIRK(0x103c, 0x829a, "HP 800 G3 DM", CXT_FIXUP_HP_MIC_NO_PRESENCE),