Auto-update from upstream

MAINTAINERS

@@ -1636,6 +1636,15 @@ L:	ldm-devel@lists.sourceforge.net
 W:	http://ldm.sourceforge.net
 S:	Maintained
 
+LSILOGIC MPT FUSION DRIVERS (FC/SAS/SPI)
+P:	Eric Moore
+M:	Eric.Moore@lsil.com
+M:	support@lsil.com
+L:	mpt_linux_developer@lsil.com
+L:	linux-scsi@vger.kernel.org
+W:	http://www.lsilogic.com/support
+S:	Supported
+
 LSILOGIC/SYMBIOS/NCR 53C8XX and 53C1010 PCI-SCSI drivers
 P:	Matthew Wilcox
 M:	matthew@wil.cx

Makefile

@@ -1,7 +1,7 @@
 VERSION = 2
 PATCHLEVEL = 6
 SUBLEVEL = 15
-EXTRAVERSION =-rc4
+EXTRAVERSION =-rc5
 NAME=Affluent Albatross
 
 # *DOCUMENTATION*

drivers/Makefile

@@ -5,7 +5,7 @@
 # Rewritten to use lists instead of if-statements.
 #
 
-obj-$(CONFIG_PCI)		+= pci/ usb/
+obj-$(CONFIG_PCI)		+= pci/
 obj-$(CONFIG_PARISC)		+= parisc/
 obj-$(CONFIG_RAPIDIO)		+= rapidio/
 obj-y				+= video/
@@ -49,6 +49,7 @@ obj-$(CONFIG_ATA_OVER_ETH)	+= block/aoe/
 obj-$(CONFIG_PARIDE) 		+= block/paride/
 obj-$(CONFIG_TC)		+= tc/
 obj-$(CONFIG_USB)		+= usb/
+obj-$(CONFIG_PCI)		+= usb/
 obj-$(CONFIG_USB_GADGET)	+= usb/gadget/
 obj-$(CONFIG_GAMEPORT)		+= input/gameport/
 obj-$(CONFIG_INPUT)		+= input/

drivers/acpi/processor_idle.c

@@ -169,15 +169,11 @@ acpi_processor_power_activate(struct acpi_processor *pr,
 
 static void acpi_safe_halt(void)
 {
-	int polling = test_thread_flag(TIF_POLLING_NRFLAG);
-	if (polling) {
-		clear_thread_flag(TIF_POLLING_NRFLAG);
-		smp_mb__after_clear_bit();
-	}
+	clear_thread_flag(TIF_POLLING_NRFLAG);
+	smp_mb__after_clear_bit();
 	if (!need_resched())
 		safe_halt();
-	if (polling)
-		set_thread_flag(TIF_POLLING_NRFLAG);
+	set_thread_flag(TIF_POLLING_NRFLAG);
 }
 
 static atomic_t c3_cpu_count;
@@ -295,6 +291,16 @@ static void acpi_processor_idle(void)
 	 * ------
 	 * Invoke the current Cx state to put the processor to sleep.
 	 */
+	if (cx->type == ACPI_STATE_C2 || cx->type == ACPI_STATE_C3) {
+		clear_thread_flag(TIF_POLLING_NRFLAG);
+		smp_mb__after_clear_bit();
+		if (need_resched()) {
+			set_thread_flag(TIF_POLLING_NRFLAG);
+			local_irq_enable();
+			return;
+		}
+	}
+
 	switch (cx->type) {
 
 	case ACPI_STATE_C1:
@@ -327,6 +333,7 @@ static void acpi_processor_idle(void)
 		t2 = inl(acpi_fadt.xpm_tmr_blk.address);
 		/* Re-enable interrupts */
 		local_irq_enable();
+		set_thread_flag(TIF_POLLING_NRFLAG);
 		/* Compute time (ticks) that we were actually asleep */
 		sleep_ticks =
 		    ticks_elapsed(t1, t2) - cx->latency_ticks - C2_OVERHEAD;
@@ -366,6 +373,7 @@ static void acpi_processor_idle(void)
 
 		/* Re-enable interrupts */
 		local_irq_enable();
+		set_thread_flag(TIF_POLLING_NRFLAG);
 		/* Compute time (ticks) that we were actually asleep */
 		sleep_ticks =
 		    ticks_elapsed(t1, t2) - cx->latency_ticks - C3_OVERHEAD;

drivers/media/video/cx88/cx88-cards.c

@@ -567,6 +567,7 @@ struct cx88_board cx88_boards[] = {
 		.radio_type     = UNSET,
 		.tuner_addr	= ADDR_UNSET,
 		.radio_addr	= ADDR_UNSET,
+		.tda9887_conf   = TDA9887_PRESENT,
 		.input          = {{
 			.type   = CX88_VMUX_TELEVISION,
 			.vmux   = 0,
@@ -711,6 +712,7 @@ struct cx88_board cx88_boards[] = {
 		.radio_type     = UNSET,
 		.tuner_addr	= ADDR_UNSET,
 		.radio_addr	= ADDR_UNSET,
+		.tda9887_conf   = TDA9887_PRESENT,
 		.input          = {{
 			.type   = CX88_VMUX_TELEVISION,
 			.vmux   = 0,

drivers/message/fusion/mptbase.c

@@ -1118,6 +1118,65 @@ mpt_verify_adapter(int iocid, MPT_ADAPTER **iocpp)
 	return -1;
 }
 
+int
+mpt_alt_ioc_wait(MPT_ADAPTER *ioc)
+{
+	int loop_count = 30 * 4;  /* Wait 30 seconds */
+	int status = -1; /* -1 means failed to get board READY */
+
+	do {
+		spin_lock(&ioc->initializing_hba_lock);
+		if (ioc->initializing_hba_lock_flag == 0) {
+			ioc->initializing_hba_lock_flag=1;
+			spin_unlock(&ioc->initializing_hba_lock);
+			status = 0;
+			break;
+		}
+		spin_unlock(&ioc->initializing_hba_lock);
+		set_current_state(TASK_INTERRUPTIBLE);
+		schedule_timeout(HZ/4);
+	} while (--loop_count);
+
+	return status;
+}
+
+/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
+/*
+ *	mpt_bringup_adapter - This is a wrapper function for mpt_do_ioc_recovery
+ *	@ioc: Pointer to MPT adapter structure
+ *	@sleepFlag: Use schedule if CAN_SLEEP else use udelay.
+ *
+ *	This routine performs all the steps necessary to bring the IOC
+ *	to a OPERATIONAL state.
+ *
+ *      Special Note: This function was added with spin lock's so as to allow
+ *      the dv(domain validation) work thread to succeed on the other channel
+ *      that maybe occuring at the same time when this function is called.
+ *      Without this lock, the dv would fail when message frames were
+ *      requested during hba bringup on the alternate ioc.
+ */
+static int
+mpt_bringup_adapter(MPT_ADAPTER *ioc, int sleepFlag)
+{
+	int r;
+
+	if(ioc->alt_ioc) {
+		if((r=mpt_alt_ioc_wait(ioc->alt_ioc)!=0))
+			return r;
+	}
+
+	r = mpt_do_ioc_recovery(ioc, MPT_HOSTEVENT_IOC_BRINGUP,
+	    CAN_SLEEP);
+
+	if(ioc->alt_ioc) {
+		spin_lock(&ioc->alt_ioc->initializing_hba_lock);
+		ioc->alt_ioc->initializing_hba_lock_flag=0;
+		spin_unlock(&ioc->alt_ioc->initializing_hba_lock);
+	}
+
+return r;
+}
+
 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
 /*
  *	mpt_attach - Install a PCI intelligent MPT adapter.
@@ -1186,6 +1245,7 @@ mpt_attach(struct pci_dev *pdev, const struct pci_device_id *id)
 	ioc->pcidev = pdev;
 	ioc->diagPending = 0;
 	spin_lock_init(&ioc->diagLock);
+	spin_lock_init(&ioc->initializing_hba_lock);
 
 	/* Initialize the event logging.
 	 */
@@ -1408,8 +1468,7 @@ mpt_attach(struct pci_dev *pdev, const struct pci_device_id *id)
 	 */
 	mpt_detect_bound_ports(ioc, pdev);
 
-	if ((r = mpt_do_ioc_recovery(ioc,
-	  MPT_HOSTEVENT_IOC_BRINGUP, CAN_SLEEP)) != 0) {
+	if ((r = mpt_bringup_adapter(ioc, CAN_SLEEP)) != 0){
 		printk(KERN_WARNING MYNAM
 		  ": WARNING - %s did not initialize properly! (%d)\n",
 		  ioc->name, r);
@@ -6298,6 +6357,7 @@ EXPORT_SYMBOL(mpt_read_ioc_pg_3);
 EXPORT_SYMBOL(mpt_alloc_fw_memory);
 EXPORT_SYMBOL(mpt_free_fw_memory);
 EXPORT_SYMBOL(mptbase_sas_persist_operation);
+EXPORT_SYMBOL(mpt_alt_ioc_wait);
 
 
 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/

drivers/message/fusion/mptbase.h

@@ -611,6 +611,8 @@ typedef struct _MPT_ADAPTER
 	int			 DoneCtx;
 	int			 TaskCtx;
 	int			 InternalCtx;
+	spinlock_t		 initializing_hba_lock;
+	int 	 		 initializing_hba_lock_flag;
 	struct list_head	 list;
 	struct net_device	*netdev;
 	struct list_head	 sas_topology;
@@ -1001,6 +1003,7 @@ extern void	 mpt_free_fw_memory(MPT_ADAPTER *ioc);
 extern int	 mpt_findImVolumes(MPT_ADAPTER *ioc);
 extern int	 mpt_read_ioc_pg_3(MPT_ADAPTER *ioc);
 extern int	 mptbase_sas_persist_operation(MPT_ADAPTER *ioc, u8 persist_opcode);
+extern int	 mpt_alt_ioc_wait(MPT_ADAPTER *ioc);
 
 /*
  *  Public data decl's...

drivers/message/fusion/mptscsih.c

@@ -4162,6 +4162,12 @@ mptscsih_domainValidation(void *arg)
 						}
 					}
 
+					if(mpt_alt_ioc_wait(hd->ioc)!=0) {
+						ddvprintk((MYIOC_s_WARN_FMT "alt_ioc busy!\n",
+						    hd->ioc->name));
+						continue;
+					}
+
 					if (mptscsih_doDv(hd, 0, id) == 1) {
 						/* Untagged device was busy, try again
 						 */
@@ -4173,6 +4179,10 @@ mptscsih_domainValidation(void *arg)
 						hd->ioc->spi_data.dvStatus[id] &= ~(MPT_SCSICFG_DV_NOT_DONE | MPT_SCSICFG_DV_PENDING);
 					}
 
+					spin_lock(&hd->ioc->initializing_hba_lock);
+					hd->ioc->initializing_hba_lock_flag=0;
+					spin_unlock(&hd->ioc->initializing_hba_lock);
+
 					if (isPhysDisk) {
 						for (ii=0; ii < MPT_MAX_SCSI_DEVICES; ii++) {
 							if (hd->ioc->raid_data.isRaid & (1 << ii)) {

drivers/s390/scsi/zfcp_aux.c

@@ -996,6 +996,20 @@ zfcp_adapter_enqueue(struct ccw_device *ccw_device)
 	spin_lock_init(&adapter->fsf_req_list_lock);
 	INIT_LIST_HEAD(&adapter->fsf_req_list_head);
 
+	/* initialize debug locks */
+
+	spin_lock_init(&adapter->erp_dbf_lock);
+	spin_lock_init(&adapter->hba_dbf_lock);
+	spin_lock_init(&adapter->san_dbf_lock);
+	spin_lock_init(&adapter->scsi_dbf_lock);
+
+	/* initialize error recovery stuff */
+
+	rwlock_init(&adapter->erp_lock);
+	sema_init(&adapter->erp_ready_sem, 0);
+	INIT_LIST_HEAD(&adapter->erp_ready_head);
+	INIT_LIST_HEAD(&adapter->erp_running_head);
+
 	/* initialize abort lock */
 	rwlock_init(&adapter->abort_lock);
 

drivers/s390/scsi/zfcp_dbf.c

@@ -926,7 +926,6 @@ int zfcp_adapter_debug_register(struct zfcp_adapter *adapter)
 	char dbf_name[DEBUG_MAX_NAME_LEN];
 
 	/* debug feature area which records recovery activity */
-	spin_lock_init(&adapter->erp_dbf_lock);
 	sprintf(dbf_name, "zfcp_%s_erp", zfcp_get_busid_by_adapter(adapter));
 	adapter->erp_dbf = debug_register(dbf_name, dbfsize, 2,
 					  sizeof(struct zfcp_erp_dbf_record));
@@ -936,7 +935,6 @@ int zfcp_adapter_debug_register(struct zfcp_adapter *adapter)
 	debug_set_level(adapter->erp_dbf, 3);
 
 	/* debug feature area which records HBA (FSF and QDIO) conditions */
-	spin_lock_init(&adapter->hba_dbf_lock);
 	sprintf(dbf_name, "zfcp_%s_hba", zfcp_get_busid_by_adapter(adapter));
 	adapter->hba_dbf = debug_register(dbf_name, dbfsize, 1,
 					  sizeof(struct zfcp_hba_dbf_record));
@@ -947,7 +945,6 @@ int zfcp_adapter_debug_register(struct zfcp_adapter *adapter)
 	debug_set_level(adapter->hba_dbf, 3);
 
 	/* debug feature area which records SAN command failures and recovery */
-	spin_lock_init(&adapter->san_dbf_lock);
 	sprintf(dbf_name, "zfcp_%s_san", zfcp_get_busid_by_adapter(adapter));
 	adapter->san_dbf = debug_register(dbf_name, dbfsize, 1,
 					  sizeof(struct zfcp_san_dbf_record));
@@ -958,7 +955,6 @@ int zfcp_adapter_debug_register(struct zfcp_adapter *adapter)
 	debug_set_level(adapter->san_dbf, 6);
 
 	/* debug feature area which records SCSI command failures and recovery */
-	spin_lock_init(&adapter->scsi_dbf_lock);
 	sprintf(dbf_name, "zfcp_%s_scsi", zfcp_get_busid_by_adapter(adapter));
 	adapter->scsi_dbf = debug_register(dbf_name, dbfsize, 1,
 					   sizeof(struct zfcp_scsi_dbf_record));

drivers/s390/scsi/zfcp_erp.c

@@ -1071,11 +1071,6 @@ zfcp_erp_thread_setup(struct zfcp_adapter *adapter)
 
 	atomic_clear_mask(ZFCP_STATUS_ADAPTER_ERP_THREAD_UP, &adapter->status);
 
-	rwlock_init(&adapter->erp_lock);
-	INIT_LIST_HEAD(&adapter->erp_ready_head);
-	INIT_LIST_HEAD(&adapter->erp_running_head);
-	sema_init(&adapter->erp_ready_sem, 0);
-
 	retval = kernel_thread(zfcp_erp_thread, adapter, SIGCHLD);
 	if (retval < 0) {
 		ZFCP_LOG_NORMAL("error: creation of erp thread failed for "
@@ -2248,29 +2243,26 @@ zfcp_erp_adapter_strategy_close_qdio(struct zfcp_erp_action *erp_action)
 	return retval;
 }
 
-/*
- * function:    zfcp_fsf_init
- *
- * purpose:	initializes FSF operation for the specified adapter
- *
- * returns:	0 - succesful initialization of FSF operation
- *		!0 - failed to initialize FSF operation
- */
 static int
 zfcp_erp_adapter_strategy_open_fsf(struct zfcp_erp_action *erp_action)
 {
-	int xconfig, xport;
+	int retval;
 
-	if (atomic_test_mask(ZFCP_STATUS_ADAPTER_LINK_UNPLUGGED,
-			     &erp_action->adapter->status)) {
+	if ((atomic_test_mask(ZFCP_STATUS_ADAPTER_LINK_UNPLUGGED,
+			      &erp_action->adapter->status)) &&
+	    (erp_action->adapter->adapter_features &
+	     FSF_FEATURE_HBAAPI_MANAGEMENT)) {
 		zfcp_erp_adapter_strategy_open_fsf_xport(erp_action);
 		atomic_set(&erp_action->adapter->erp_counter, 0);
 		return ZFCP_ERP_FAILED;
 	}
 
-	xconfig = zfcp_erp_adapter_strategy_open_fsf_xconfig(erp_action);
-	xport   = zfcp_erp_adapter_strategy_open_fsf_xport(erp_action);
-	if ((xconfig == ZFCP_ERP_FAILED) || (xport == ZFCP_ERP_FAILED))
+	retval = zfcp_erp_adapter_strategy_open_fsf_xconfig(erp_action);
+	if (retval == ZFCP_ERP_FAILED)
+		return ZFCP_ERP_FAILED;
+
+	retval = zfcp_erp_adapter_strategy_open_fsf_xport(erp_action);
+	if (retval == ZFCP_ERP_FAILED)
 		return ZFCP_ERP_FAILED;
 
 	return zfcp_erp_adapter_strategy_open_fsf_statusread(erp_action);
@@ -2359,41 +2351,29 @@ zfcp_erp_adapter_strategy_open_fsf_xconfig(struct zfcp_erp_action *erp_action)
 static int
 zfcp_erp_adapter_strategy_open_fsf_xport(struct zfcp_erp_action *erp_action)
 {
-	int retval = ZFCP_ERP_SUCCEEDED;
+	int ret;
 	int retries;
 	int sleep;
 	struct zfcp_adapter *adapter = erp_action->adapter;
 
 	atomic_clear_mask(ZFCP_STATUS_ADAPTER_XPORT_OK, &adapter->status);
 
-	for (retries = 0; ; retries++) {
-		ZFCP_LOG_DEBUG("Doing exchange port data\n");
+	retries = 0;
+	do {
+		write_lock(&adapter->erp_lock);
 		zfcp_erp_action_to_running(erp_action);
+		write_unlock(&adapter->erp_lock);
 		zfcp_erp_timeout_init(erp_action);
-		if (zfcp_fsf_exchange_port_data(erp_action, adapter, NULL)) {
-			retval = ZFCP_ERP_FAILED;
-			debug_text_event(adapter->erp_dbf, 5, "a_fstx_xf");
-			ZFCP_LOG_INFO("error: initiation of exchange of "
-				      "port data failed for adapter %s\n",
-				      zfcp_get_busid_by_adapter(adapter));
-			break;
+		ret = zfcp_fsf_exchange_port_data(erp_action, adapter, NULL);
+		if (ret == -EOPNOTSUPP) {
+			debug_text_event(adapter->erp_dbf, 3, "a_xport_notsupp");
+			return ZFCP_ERP_SUCCEEDED;
+		} else if (ret) {
+			debug_text_event(adapter->erp_dbf, 3, "a_xport_failed");
+			return ZFCP_ERP_FAILED;
 		}
-		debug_text_event(adapter->erp_dbf, 6, "a_fstx_xok");
-		ZFCP_LOG_DEBUG("Xchange underway\n");
+		debug_text_event(adapter->erp_dbf, 6, "a_xport_ok");
 
-		/*
-		 * Why this works:
-		 * Both the normal completion handler as well as the timeout
-		 * handler will do an 'up' when the 'exchange port data'
-		 * request completes or times out. Thus, the signal to go on
-		 * won't be lost utilizing this semaphore.
-		 * Furthermore, this 'adapter_reopen' action is
-		 * guaranteed to be the only action being there (highest action
-		 * which prevents other actions from being created).
-		 * Resulting from that, the wake signal recognized here
-		 * _must_ be the one belonging to the 'exchange port
-		 * data' request.
-		 */
 		down(&adapter->erp_ready_sem);
 		if (erp_action->status & ZFCP_STATUS_ERP_TIMEDOUT) {
 			ZFCP_LOG_INFO("error: exchange of port data "
@@ -2401,29 +2381,19 @@ zfcp_erp_adapter_strategy_open_fsf_xport(struct zfcp_erp_action *erp_action)
 				      zfcp_get_busid_by_adapter(adapter));
 			break;
 		}
-
 		if (!atomic_test_mask(ZFCP_STATUS_ADAPTER_LINK_UNPLUGGED,
 				      &adapter->status))
 			break;
 
-		ZFCP_LOG_DEBUG("host connection still initialising... "
-			       "waiting and retrying...\n");
-		/* sleep a little bit before retry */
-		sleep = retries < ZFCP_EXCHANGE_PORT_DATA_SHORT_RETRIES ?
-				ZFCP_EXCHANGE_PORT_DATA_SHORT_SLEEP :
-				ZFCP_EXCHANGE_PORT_DATA_LONG_SLEEP;
-		msleep(jiffies_to_msecs(sleep));
-	}
-
-	if (atomic_test_mask(ZFCP_STATUS_ADAPTER_LINK_UNPLUGGED,
-			     &adapter->status)) {
-		ZFCP_LOG_INFO("error: exchange of port data for "
-			      "adapter %s failed\n",
-			      zfcp_get_busid_by_adapter(adapter));
-		retval = ZFCP_ERP_FAILED;
-	}
+		if (retries < ZFCP_EXCHANGE_PORT_DATA_SHORT_RETRIES) {
+			sleep = ZFCP_EXCHANGE_PORT_DATA_SHORT_SLEEP;
+			retries++;
+		} else
+			sleep = ZFCP_EXCHANGE_PORT_DATA_LONG_SLEEP;
+		schedule_timeout(sleep);
+	} while (1);
 
-	return retval;
+	return ZFCP_ERP_SUCCEEDED;
 }
 
 /*

drivers/s390/scsi/zfcp_fsf.c

@@ -554,6 +554,17 @@ static void
 zfcp_fsf_link_down_info_eval(struct zfcp_adapter *adapter,
 			     struct fsf_link_down_info *link_down)
 {
+	if (atomic_test_mask(ZFCP_STATUS_ADAPTER_LINK_UNPLUGGED,
+	                     &adapter->status))
+		return;
+
+	atomic_set_mask(ZFCP_STATUS_ADAPTER_LINK_UNPLUGGED, &adapter->status);
+
+	if (link_down == NULL) {
+		zfcp_erp_adapter_reopen(adapter, 0);
+		return;
+	}
+
 	switch (link_down->error_code) {
 	case FSF_PSQ_LINK_NO_LIGHT:
 		ZFCP_LOG_NORMAL("The local link to adapter %s is down "
@@ -634,20 +645,15 @@ zfcp_fsf_link_down_info_eval(struct zfcp_adapter *adapter,
 				link_down->explanation_code,
 				link_down->vendor_specific_code);
 
-	if (!atomic_test_mask(ZFCP_STATUS_ADAPTER_LINK_UNPLUGGED,
-			      &adapter->status)) {
-		atomic_set_mask(ZFCP_STATUS_ADAPTER_LINK_UNPLUGGED,
-				&adapter->status);
-		switch (link_down->error_code) {
-		case FSF_PSQ_LINK_NO_LIGHT:
-		case FSF_PSQ_LINK_WRAP_PLUG:
-		case FSF_PSQ_LINK_NO_FCP:
-		case FSF_PSQ_LINK_FIRMWARE_UPDATE:
-			zfcp_erp_adapter_reopen(adapter, 0);
-			break;
-		default:
-			zfcp_erp_adapter_failed(adapter);
-		}
+	switch (link_down->error_code) {
+	case FSF_PSQ_LINK_NO_LIGHT:
+	case FSF_PSQ_LINK_WRAP_PLUG:
+	case FSF_PSQ_LINK_NO_FCP:
+	case FSF_PSQ_LINK_FIRMWARE_UPDATE:
+		zfcp_erp_adapter_reopen(adapter, 0);
+		break;
+	default:
+		zfcp_erp_adapter_failed(adapter);
 	}
 }
 
@@ -919,30 +925,36 @@ zfcp_fsf_status_read_handler(struct zfcp_fsf_req *fsf_req)
 		case FSF_STATUS_READ_SUB_NO_PHYSICAL_LINK:
 			ZFCP_LOG_INFO("Physical link to adapter %s is down\n",
 				      zfcp_get_busid_by_adapter(adapter));
+			zfcp_fsf_link_down_info_eval(adapter,
+				(struct fsf_link_down_info *)
+				&status_buffer->payload);
 			break;
 		case FSF_STATUS_READ_SUB_FDISC_FAILED:
 			ZFCP_LOG_INFO("Local link to adapter %s is down "
 				      "due to failed FDISC login\n",
-			      zfcp_get_busid_by_adapter(adapter));
+				      zfcp_get_busid_by_adapter(adapter));
+			zfcp_fsf_link_down_info_eval(adapter,
+				(struct fsf_link_down_info *)
+				&status_buffer->payload);
 			break;
 		case FSF_STATUS_READ_SUB_FIRMWARE_UPDATE:
 			ZFCP_LOG_INFO("Local link to adapter %s is down "
 				      "due to firmware update on adapter\n",
 				      zfcp_get_busid_by_adapter(adapter));
+			zfcp_fsf_link_down_info_eval(adapter, NULL);
 			break;
 		default:
 			ZFCP_LOG_INFO("Local link to adapter %s is down "
 				      "due to unknown reason\n",
 				      zfcp_get_busid_by_adapter(adapter));
+			zfcp_fsf_link_down_info_eval(adapter, NULL);
 		};
-		zfcp_fsf_link_down_info_eval(adapter,
-			(struct fsf_link_down_info *) &status_buffer->payload);
 		break;
 
 	case FSF_STATUS_READ_LINK_UP:
 		ZFCP_LOG_NORMAL("Local link to adapter %s was replugged. "
-			      "Restarting operations on this adapter\n",
-			      zfcp_get_busid_by_adapter(adapter));
+				"Restarting operations on this adapter\n",
+				zfcp_get_busid_by_adapter(adapter));
 		/* All ports should be marked as ready to run again */
 		zfcp_erp_modify_adapter_status(adapter,
 					       ZFCP_STATUS_COMMON_RUNNING,
@@ -2191,13 +2203,10 @@ zfcp_fsf_exchange_port_data(struct zfcp_erp_action *erp_action,
                 return -EOPNOTSUPP;
         }
 
-	timer = kmalloc(sizeof(struct timer_list), GFP_KERNEL);
-	if (!timer)
-		return -ENOMEM;
-
 	/* setup new FSF request */
 	retval = zfcp_fsf_req_create(adapter, FSF_QTCB_EXCHANGE_PORT_DATA,
-                                     0, 0, &lock_flags, &fsf_req);
+				     erp_action ? ZFCP_REQ_AUTO_CLEANUP : 0,
+				     0, &lock_flags, &fsf_req);
 	if (retval < 0) {
 		ZFCP_LOG_INFO("error: Out of resources. Could not create an "
                               "exchange port data request for"
@@ -2205,25 +2214,33 @@ zfcp_fsf_exchange_port_data(struct zfcp_erp_action *erp_action,
 			      zfcp_get_busid_by_adapter(adapter));
 		write_unlock_irqrestore(&adapter->request_queue.queue_lock,
 					lock_flags);
-		goto out;
-	}
-
-	if (erp_action) {
-		erp_action->fsf_req = fsf_req;
-		fsf_req->erp_action = erp_action;
+		return retval;
 	}
 
 	if (data)
-	fsf_req->data = (unsigned long) data;
+		fsf_req->data = (unsigned long) data;
 
 	sbale = zfcp_qdio_sbale_req(fsf_req, fsf_req->sbal_curr, 0);
         sbale[0].flags |= SBAL_FLAGS0_TYPE_READ;
         sbale[1].flags |= SBAL_FLAGS_LAST_ENTRY;
 
-	init_timer(timer);
-	timer->function = zfcp_fsf_request_timeout_handler;
-	timer->data = (unsigned long) adapter;
-	timer->expires = ZFCP_FSF_REQUEST_TIMEOUT;
+	if (erp_action) {
+		erp_action->fsf_req = fsf_req;
+		fsf_req->erp_action = erp_action;
+		timer = &erp_action->timer;
+	} else {
+		timer = kmalloc(sizeof(struct timer_list), GFP_ATOMIC);
+		if (!timer) {
+			write_unlock_irqrestore(&adapter->request_queue.queue_lock,
+						lock_flags);
+			zfcp_fsf_req_free(fsf_req);
+			return -ENOMEM;
+		}
+		init_timer(timer);
+		timer->function = zfcp_fsf_request_timeout_handler;
+		timer->data = (unsigned long) adapter;
+		timer->expires = ZFCP_FSF_REQUEST_TIMEOUT;
+	}
 
 	retval = zfcp_fsf_req_send(fsf_req, timer);
 	if (retval) {
@@ -2233,23 +2250,22 @@ zfcp_fsf_exchange_port_data(struct zfcp_erp_action *erp_action,
 		zfcp_fsf_req_free(fsf_req);
 		if (erp_action)
 			erp_action->fsf_req = NULL;
+		else
+			kfree(timer);
 		write_unlock_irqrestore(&adapter->request_queue.queue_lock,
 					lock_flags);
-		goto out;
+		return retval;
 	}
 
-	ZFCP_LOG_DEBUG("Exchange Port Data request initiated (adapter %s)\n",
-		       zfcp_get_busid_by_adapter(adapter));
-
-	write_unlock_irqrestore(&adapter->request_queue.queue_lock,
-				lock_flags);
+	write_unlock_irqrestore(&adapter->request_queue.queue_lock, lock_flags);
 
-	wait_event(fsf_req->completion_wq,
-		   fsf_req->status & ZFCP_STATUS_FSFREQ_COMPLETED);
-	del_timer_sync(timer);
-	zfcp_fsf_req_free(fsf_req);
- out:
-	kfree(timer);
+	if (!erp_action) {
+		wait_event(fsf_req->completion_wq,
+			   fsf_req->status & ZFCP_STATUS_FSFREQ_COMPLETED);
+		del_timer_sync(timer);
+		zfcp_fsf_req_free(fsf_req);
+		kfree(timer);
+	}
 	return retval;
 }
 

drivers/s390/scsi/zfcp_scsi.c

@@ -179,7 +179,7 @@ zfcp_scsi_slave_alloc(struct scsi_device *sdp)
 	struct zfcp_adapter *adapter;
 	struct zfcp_unit *unit;
 	unsigned long flags;
-	int retval = -ENODEV;
+	int retval = -ENXIO;
 
 	adapter = (struct zfcp_adapter *) sdp->host->hostdata[0];
 	if (!adapter)

drivers/scsi/aacraid/linit.c

@@ -325,6 +325,8 @@ static int aac_biosparm(struct scsi_device *sdev, struct block_device *bdev,
 	 *	translations ( 64/32, 128/32, 255/63 ).
 	 */
 	buf = scsi_bios_ptable(bdev);
+	if (!buf)
+		return 0;
 	if(*(__le16 *)(buf + 0x40) == cpu_to_le16(0xaa55)) {
 		struct partition *first = (struct partition * )buf;
 		struct partition *entry = first;

drivers/scsi/aic7xxx/aic79xx_osm.c

@@ -2105,7 +2105,7 @@ ahd_linux_queue_recovery_cmd(struct scsi_cmnd *cmd, scb_flag flag)
 					  scmd_id(cmd),
 					  scmd_channel(cmd) + 'A',
 					  CAM_LUN_WILDCARD,
-					  SCB_LIST_NULL, ROLE_INITIATOR) == 0)
+					  SCB_LIST_NULL, ROLE_INITIATOR))
 				break;
 		}
 	}

drivers/scsi/aic7xxx/aic7xxx_osm.c

@@ -2169,7 +2169,7 @@ ahc_linux_queue_recovery_cmd(struct scsi_cmnd *cmd, scb_flag flag)
 		  	if (ahc_match_scb(ahc, pending_scb, scmd_id(cmd),
 					  scmd_channel(cmd) + 'A',
 					  CAM_LUN_WILDCARD,
-					  SCB_LIST_NULL, ROLE_INITIATOR) == 0)
+					  SCB_LIST_NULL, ROLE_INITIATOR))
 				break;
 		}
 	}

drivers/scsi/libata-scsi.c

@@ -2239,7 +2239,7 @@ ata_scsi_pass_thru(struct ata_queued_cmd *qc, const u8 *scsicmd)
 	struct scsi_cmnd *cmd = qc->scsicmd;
 
 	if ((tf->protocol = ata_scsi_map_proto(scsicmd[1])) == ATA_PROT_UNKNOWN)
-		return 1;
+		goto invalid_fld;
 
 	/*
 	 * 12 and 16 byte CDBs use different offsets to
@@ -2301,7 +2301,7 @@ ata_scsi_pass_thru(struct ata_queued_cmd *qc, const u8 *scsicmd)
 	 */
 	if ((tf->command == ATA_CMD_SET_FEATURES)
 	 && (tf->feature == SETFEATURES_XFER))
-		return 1;
+		goto invalid_fld;
 
 	/*
 	 * Set flags so that all registers will be written,
@@ -2322,6 +2322,11 @@ ata_scsi_pass_thru(struct ata_queued_cmd *qc, const u8 *scsicmd)
 	qc->nsect = cmd->bufflen / ATA_SECT_SIZE;
 
 	return 0;
+
+ invalid_fld:
+	ata_scsi_set_sense(qc->scsicmd, ILLEGAL_REQUEST, 0x24, 0x00);
+	/* "Invalid field in cdb" */
+	return 1;
 }
 
 /**

drivers/scsi/scsi_lib.c

@@ -542,17 +542,10 @@ static void scsi_requeue_command(struct request_queue *q, struct scsi_cmnd *cmd)
 
 void scsi_next_command(struct scsi_cmnd *cmd)
 {
-	struct scsi_device *sdev = cmd->device;
-	struct request_queue *q = sdev->request_queue;
-
-	/* need to hold a reference on the device before we let go of the cmd */
-	get_device(&sdev->sdev_gendev);
+	struct request_queue *q = cmd->device->request_queue;
 
 	scsi_put_command(cmd);
 	scsi_run_queue(q);
-
-	/* ok to remove device now */
-	put_device(&sdev->sdev_gendev);
 }
 
 void scsi_run_host_queues(struct Scsi_Host *shost)

drivers/scsi/scsi_transport_spi.c

@@ -812,12 +812,10 @@ spi_dv_device_internal(struct scsi_device *sdev, u8 *buffer)
 	if (!scsi_device_sync(sdev) && !scsi_device_dt(sdev))
 		return;
 
-	/* see if the device has an echo buffer.  If it does we can
-	 * do the SPI pattern write tests */
-
-	len = 0;
-	if (scsi_device_dt(sdev))
-		len = spi_dv_device_get_echo_buffer(sdev, buffer);
+	/* len == -1 is the signal that we need to ascertain the
+	 * presence of an echo buffer before trying to use it.  len ==
+	 * 0 means we don't have an echo buffer */
+	len = -1;
 
  retry:
 
@@ -840,11 +838,23 @@ spi_dv_device_internal(struct scsi_device *sdev, u8 *buffer)
 		if (spi_min_period(starget) == 8)
 			DV_SET(pcomp_en, 1);
 	}
+	/* Do the read only INQUIRY tests */
+	spi_dv_retrain(sdev, buffer, buffer + sdev->inquiry_len,
+		       spi_dv_device_compare_inquiry);
+	/* See if we actually managed to negotiate and sustain DT */
+	if (i->f->get_dt)
+		i->f->get_dt(starget);
+
+	/* see if the device has an echo buffer.  If it does we can do
+	 * the SPI pattern write tests.  Because of some broken
+	 * devices, we *only* try this on a device that has actually
+	 * negotiated DT */
+
+	if (len == -1 && spi_dt(starget))
+		len = spi_dv_device_get_echo_buffer(sdev, buffer);
 
-	if (len == 0) {
+	if (len <= 0) {
 		starget_printk(KERN_INFO, starget, "Domain Validation skipping write tests\n");
-		spi_dv_retrain(sdev, buffer, buffer + len,
-			       spi_dv_device_compare_inquiry);
 		return;
 	}
 

drivers/scsi/sg.c

@@ -1860,9 +1860,11 @@ st_map_user_pages(struct scatterlist *sgl, const unsigned int max_pages,
 	   unlock_page(pages[j]); */
 	res = 0;
  out_unmap:
-	if (res > 0)
+	if (res > 0) {
 		for (j=0; j < res; j++)
 			page_cache_release(pages[j]);
+		res = 0;
+	}
 	kfree(pages);
 	return res;
 }
@@ -1878,8 +1880,6 @@ st_unmap_user_pages(struct scatterlist *sgl, const unsigned int nr_pages,
 	for (i=0; i < nr_pages; i++) {
 		struct page *page = sgl[i].page;
 
-		/* XXX: just for debug. Remove when PageReserved is removed */
-		BUG_ON(PageReserved(page));
 		if (dirtied)
 			SetPageDirty(page);
 		/* unlock_page(page); */

drivers/scsi/st.c

@@ -4509,6 +4509,7 @@ static int sgl_map_user_pages(struct scatterlist *sgl, const unsigned int max_pa
 	if (res > 0) {
 		for (j=0; j < res; j++)
 			page_cache_release(pages[j]);
+		res = 0;
 	}
 	kfree(pages);
 	return res;
@@ -4524,8 +4525,6 @@ static int sgl_unmap_user_pages(struct scatterlist *sgl, const unsigned int nr_p
 	for (i=0; i < nr_pages; i++) {
 		struct page *page = sgl[i].page;
 
-		/* XXX: just for debug. Remove when PageReserved is removed */
-		BUG_ON(PageReserved(page));
 		if (dirtied)
 			SetPageDirty(page);
 		/* FIXME: cache flush missing for rw==READ

drivers/scsi/sym53c8xx_2/sym_glue.c

@@ -2086,6 +2086,7 @@ static void sym2_set_dt(struct scsi_target *starget, int dt)
 	tp->tgoal.check_nego = 1;
 }
 
+#if 0
 static void sym2_set_iu(struct scsi_target *starget, int iu)
 {
 	struct Scsi_Host *shost = dev_to_shost(starget->dev.parent);
@@ -2111,7 +2112,7 @@ static void sym2_set_qas(struct scsi_target *starget, int qas)
 		tp->tgoal.qas = 0;
 	tp->tgoal.check_nego = 1;
 }
-
+#endif
 
 static struct spi_function_template sym2_transport_functions = {
 	.set_offset	= sym2_set_offset,
@@ -2122,10 +2123,12 @@ static struct spi_function_template sym2_transport_functions = {
 	.show_width	= 1,
 	.set_dt		= sym2_set_dt,
 	.show_dt	= 1,
+#if 0
 	.set_iu		= sym2_set_iu,
 	.show_iu	= 1,
 	.set_qas	= sym2_set_qas,
 	.show_qas	= 1,
+#endif
 	.get_signalling	= sym2_get_signalling,
 };
 

fs/nfs/dir.c

@@ -1287,6 +1287,7 @@ dentry->d_parent->d_name.name, dentry->d_name.name);
 		nfs_begin_data_update(dentry->d_inode);
 		error = NFS_PROTO(dir)->rename(dir, &dentry->d_name,
 				dir, &qsilly);
+		nfs_mark_for_revalidate(dentry->d_inode);
 		nfs_end_data_update(dentry->d_inode);
 	} else
 		error = NFS_PROTO(dir)->rename(dir, &dentry->d_name,
@@ -1334,6 +1335,7 @@ static int nfs_safe_remove(struct dentry *dentry)
 		/* The VFS may want to delete this inode */
 		if (error == 0)
 			inode->i_nlink--;
+		nfs_mark_for_revalidate(inode);
 		nfs_end_data_update(inode);
 	} else
 		error = NFS_PROTO(dir)->remove(dir, &dentry->d_name);
@@ -1556,6 +1558,7 @@ go_ahead:
 	nfs_begin_data_update(old_inode);
 	error = NFS_PROTO(old_dir)->rename(old_dir, &old_dentry->d_name,
 					   new_dir, &new_dentry->d_name);
+	nfs_mark_for_revalidate(old_inode);
 	nfs_end_data_update(old_inode);
 	nfs_end_data_update(new_dir);
 	nfs_end_data_update(old_dir);

fs/nfs/inode.c

@@ -54,7 +54,7 @@
 #define NFS_MAX_READAHEAD	(RPC_DEF_SLOT_TABLE - 1)
 
 static void nfs_invalidate_inode(struct inode *);
-static int nfs_update_inode(struct inode *, struct nfs_fattr *, unsigned long);
+static int nfs_update_inode(struct inode *, struct nfs_fattr *);
 
 static struct inode *nfs_alloc_inode(struct super_block *sb);
 static void nfs_destroy_inode(struct inode *);
@@ -1080,8 +1080,6 @@ __nfs_revalidate_inode(struct nfs_server *server, struct inode *inode)
 	int		 status = -ESTALE;
 	struct nfs_fattr fattr;
 	struct nfs_inode *nfsi = NFS_I(inode);
-	unsigned long verifier;
-	unsigned long cache_validity;
 
 	dfprintk(PAGECACHE, "NFS: revalidating (%s/%Ld)\n",
 		inode->i_sb->s_id, (long long)NFS_FILEID(inode));
@@ -1106,8 +1104,6 @@ __nfs_revalidate_inode(struct nfs_server *server, struct inode *inode)
 		}
 	}
 
-	/* Protect against RPC races by saving the change attribute */
-	verifier = nfs_save_change_attribute(inode);
 	status = NFS_PROTO(inode)->getattr(server, NFS_FH(inode), &fattr);
 	if (status != 0) {
 		dfprintk(PAGECACHE, "nfs_revalidate_inode: (%s/%Ld) getattr failed, error=%d\n",
@@ -1122,7 +1118,7 @@ __nfs_revalidate_inode(struct nfs_server *server, struct inode *inode)
 	}
 
 	spin_lock(&inode->i_lock);
-	status = nfs_update_inode(inode, &fattr, verifier);
+	status = nfs_update_inode(inode, &fattr);
 	if (status) {
 		spin_unlock(&inode->i_lock);
 		dfprintk(PAGECACHE, "nfs_revalidate_inode: (%s/%Ld) refresh failed, error=%d\n",
@@ -1130,20 +1126,11 @@ __nfs_revalidate_inode(struct nfs_server *server, struct inode *inode)
 			 (long long)NFS_FILEID(inode), status);
 		goto out;
 	}
-	cache_validity = nfsi->cache_validity;
-	nfsi->cache_validity &= ~NFS_INO_REVAL_PAGECACHE;
-
-	/*
-	 * We may need to keep the attributes marked as invalid if
-	 * we raced with nfs_end_attr_update().
-	 */
-	if (time_after_eq(verifier, nfsi->cache_change_attribute))
-		nfsi->cache_validity &= ~(NFS_INO_INVALID_ATTR|NFS_INO_INVALID_ATIME);
 	spin_unlock(&inode->i_lock);
 
 	nfs_revalidate_mapping(inode, inode->i_mapping);
 
-	if (cache_validity & NFS_INO_INVALID_ACL)
+	if (nfsi->cache_validity & NFS_INO_INVALID_ACL)
 		nfs_zap_acl_cache(inode);
 
 	dfprintk(PAGECACHE, "NFS: (%s/%Ld) revalidation complete\n",
@@ -1346,10 +1333,8 @@ int nfs_refresh_inode(struct inode *inode, struct nfs_fattr *fattr)
 		return 0;
 	spin_lock(&inode->i_lock);
 	nfsi->cache_validity &= ~NFS_INO_REVAL_PAGECACHE;
-	if (nfs_verify_change_attribute(inode, fattr->time_start))
-		nfsi->cache_validity &= ~(NFS_INO_INVALID_ATTR|NFS_INO_INVALID_ATIME);
 	if (time_after(fattr->time_start, nfsi->last_updated))
-		status = nfs_update_inode(inode, fattr, fattr->time_start);
+		status = nfs_update_inode(inode, fattr);
 	else
 		status = nfs_check_inode_attributes(inode, fattr);
 
@@ -1375,10 +1360,7 @@ int nfs_post_op_update_inode(struct inode *inode, struct nfs_fattr *fattr)
 		nfsi->cache_validity |= NFS_INO_INVALID_ATTR | NFS_INO_INVALID_ACCESS;
 		goto out;
 	}
-	status = nfs_update_inode(inode, fattr, fattr->time_start);
-	if (time_after_eq(fattr->time_start, nfsi->cache_change_attribute))
-		nfsi->cache_validity &= ~(NFS_INO_INVALID_ATTR|NFS_INO_INVALID_ATIME|NFS_INO_REVAL_PAGECACHE);
-	nfsi->cache_change_attribute = jiffies;
+	status = nfs_update_inode(inode, fattr);
 out:
 	spin_unlock(&inode->i_lock);
 	return status;
@@ -1396,12 +1378,12 @@ out:
  *
  * A very similar scenario holds for the dir cache.
  */
-static int nfs_update_inode(struct inode *inode, struct nfs_fattr *fattr, unsigned long verifier)
+static int nfs_update_inode(struct inode *inode, struct nfs_fattr *fattr)
 {
 	struct nfs_inode *nfsi = NFS_I(inode);
 	loff_t cur_isize, new_isize;
 	unsigned int	invalid = 0;
-	int data_unstable;
+	int data_stable;
 
 	dfprintk(VFS, "NFS: %s(%s/%ld ct=%d info=0x%x)\n",
 			__FUNCTION__, inode->i_sb->s_id, inode->i_ino,
@@ -1432,8 +1414,9 @@ static int nfs_update_inode(struct inode *inode, struct nfs_fattr *fattr, unsign
 	nfsi->last_updated = jiffies;
 
 	/* Are we racing with known updates of the metadata on the server? */
-	data_unstable = ! (nfs_verify_change_attribute(inode, verifier) ||
-		(nfsi->cache_validity & NFS_INO_REVAL_PAGECACHE));
+	data_stable = nfs_verify_change_attribute(inode, fattr->time_start);
+	if (data_stable)
+		nfsi->cache_validity &= ~(NFS_INO_INVALID_ATTR|NFS_INO_INVALID_ATIME);
 
 	/* Check if our cached file size is stale */
  	new_isize = nfs_size_to_loff_t(fattr->size);
@@ -1442,7 +1425,7 @@ static int nfs_update_inode(struct inode *inode, struct nfs_fattr *fattr, unsign
 		/* Do we perhaps have any outstanding writes? */
 		if (nfsi->npages == 0) {
 			/* No, but did we race with nfs_end_data_update()? */
-			if (time_after_eq(verifier,  nfsi->cache_change_attribute)) {
+			if (data_stable) {
 				inode->i_size = new_isize;
 				invalid |= NFS_INO_INVALID_DATA;
 			}
@@ -1451,6 +1434,7 @@ static int nfs_update_inode(struct inode *inode, struct nfs_fattr *fattr, unsign
 			inode->i_size = new_isize;
 			invalid |= NFS_INO_INVALID_ATTR|NFS_INO_INVALID_DATA;
 		}
+		nfsi->cache_change_attribute = jiffies;
 		dprintk("NFS: isize change on server for file %s/%ld\n",
 				inode->i_sb->s_id, inode->i_ino);
 	}
@@ -1460,8 +1444,8 @@ static int nfs_update_inode(struct inode *inode, struct nfs_fattr *fattr, unsign
 		memcpy(&inode->i_mtime, &fattr->mtime, sizeof(inode->i_mtime));
 		dprintk("NFS: mtime change on server for file %s/%ld\n",
 				inode->i_sb->s_id, inode->i_ino);
-		if (!data_unstable)
-			invalid |= NFS_INO_INVALID_ATTR|NFS_INO_INVALID_DATA;
+		invalid |= NFS_INO_INVALID_ATTR|NFS_INO_INVALID_DATA;
+		nfsi->cache_change_attribute = jiffies;
 	}
 
 	if ((fattr->valid & NFS_ATTR_FATTR_V4)
@@ -1469,15 +1453,15 @@ static int nfs_update_inode(struct inode *inode, struct nfs_fattr *fattr, unsign
 		dprintk("NFS: change_attr change on server for file %s/%ld\n",
 		       inode->i_sb->s_id, inode->i_ino);
 		nfsi->change_attr = fattr->change_attr;
-		if (!data_unstable)
-			invalid |= NFS_INO_INVALID_ATTR|NFS_INO_INVALID_DATA|NFS_INO_INVALID_ACCESS|NFS_INO_INVALID_ACL;
+		invalid |= NFS_INO_INVALID_ATTR|NFS_INO_INVALID_DATA|NFS_INO_INVALID_ACCESS|NFS_INO_INVALID_ACL;
+		nfsi->cache_change_attribute = jiffies;
 	}
 
 	/* If ctime has changed we should definitely clear access+acl caches */
 	if (!timespec_equal(&inode->i_ctime, &fattr->ctime)) {
-		if (!data_unstable)
-			invalid |= NFS_INO_INVALID_ACCESS|NFS_INO_INVALID_ACL;
+		invalid |= NFS_INO_INVALID_ACCESS|NFS_INO_INVALID_ACL;
 		memcpy(&inode->i_ctime, &fattr->ctime, sizeof(inode->i_ctime));
+		nfsi->cache_change_attribute = jiffies;
 	}
 	memcpy(&inode->i_atime, &fattr->atime, sizeof(inode->i_atime));
 
@@ -1515,6 +1499,8 @@ static int nfs_update_inode(struct inode *inode, struct nfs_fattr *fattr, unsign
 	if (!(S_ISREG(inode->i_mode) || S_ISDIR(inode->i_mode)
 				|| S_ISLNK(inode->i_mode)))
 		invalid &= ~NFS_INO_INVALID_DATA;
+	if (data_stable)
+		invalid &= ~(NFS_INO_INVALID_ATTR|NFS_INO_INVALID_ATIME|NFS_INO_REVAL_PAGECACHE);
 	if (!nfs_have_delegation(inode, FMODE_READ))
 		nfsi->cache_validity |= invalid;
 
@@ -2066,6 +2052,7 @@ static struct inode *nfs_alloc_inode(struct super_block *sb)
 		return NULL;
 	nfsi->flags = 0UL;
 	nfsi->cache_validity = 0UL;
+	nfsi->cache_change_attribute = jiffies;
 #ifdef CONFIG_NFS_V3_ACL
 	nfsi->acl_access = ERR_PTR(-EAGAIN);
 	nfsi->acl_default = ERR_PTR(-EAGAIN);

fs/nfs/nfs4proc.c

@@ -1506,10 +1506,15 @@ static int _nfs4_proc_write(struct nfs_write_data *wdata)
 	dprintk("NFS call  write %d @ %Ld\n", wdata->args.count,
 			(long long) wdata->args.offset);
 
+	wdata->args.bitmask = server->attr_bitmask;
+	wdata->res.server = server;
 	nfs_fattr_init(fattr);
 	status = rpc_call_sync(server->client, &msg, rpcflags);
 	dprintk("NFS reply write: %d\n", status);
-	return status;
+	if (status < 0)
+		return status;
+	nfs_post_op_update_inode(inode, fattr);
+	return wdata->res.count;
 }
 
 static int nfs4_proc_write(struct nfs_write_data *wdata)
@@ -1540,9 +1545,13 @@ static int _nfs4_proc_commit(struct nfs_write_data *cdata)
 	dprintk("NFS call  commit %d @ %Ld\n", cdata->args.count,
 			(long long) cdata->args.offset);
 
+	cdata->args.bitmask = server->attr_bitmask;
+	cdata->res.server = server;
 	nfs_fattr_init(fattr);
 	status = rpc_call_sync(server->client, &msg, 0);
 	dprintk("NFS reply commit: %d\n", status);
+	if (status >= 0)
+		nfs_post_op_update_inode(inode, fattr);
 	return status;
 }
 

fs/nfs/proc.c

@@ -375,6 +375,7 @@ nfs_proc_link(struct inode *inode, struct inode *dir, struct qstr *name)
 
 	dprintk("NFS call  link %s\n", name->name);
 	status = rpc_call(NFS_CLIENT(inode), NFSPROC_LINK, &arg, NULL, 0);
+	nfs_mark_for_revalidate(inode);
 	nfs_mark_for_revalidate(dir);
 	dprintk("NFS reply link: %d\n", status);
 	return status;

fs/nfs/write.c

@@ -189,6 +189,7 @@ static int nfs_writepage_sync(struct nfs_open_context *ctx, struct inode *inode,
 		(long long)NFS_FILEID(inode),
 		count, (long long)(page_offset(page) + offset));
 
+	set_page_writeback(page);
 	nfs_begin_data_update(inode);
 	do {
 		if (count < wsize)
@@ -221,6 +222,7 @@ static int nfs_writepage_sync(struct nfs_open_context *ctx, struct inode *inode,
 
 io_error:
 	nfs_end_data_update(inode);
+	end_page_writeback(page);
 	nfs_writedata_free(wdata);
 	return written ? written : result;
 }
@@ -929,7 +931,7 @@ static int nfs_flush_multi(struct list_head *head, struct inode *inode, int how)
 	atomic_set(&req->wb_complete, requests);
 
 	ClearPageError(page);
-	SetPageWriteback(page);
+	set_page_writeback(page);
 	offset = 0;
 	nbytes = req->wb_bytes;
 	do {
@@ -992,7 +994,7 @@ static int nfs_flush_one(struct list_head *head, struct inode *inode, int how)
 		nfs_list_remove_request(req);
 		nfs_list_add_request(req, &data->pages);
 		ClearPageError(req->wb_page);
-		SetPageWriteback(req->wb_page);
+		set_page_writeback(req->wb_page);
 		*pages++ = req->wb_page;
 		count += req->wb_bytes;
 	}

mm/memory.c

@@ -1223,7 +1223,7 @@ int vm_insert_page(struct vm_area_struct *vma, unsigned long addr, struct page *
 		return -EINVAL;
 	return insert_page(vma->vm_mm, addr, page, vma->vm_page_prot);
 }
-EXPORT_SYMBOL_GPL(vm_insert_page);
+EXPORT_SYMBOL(vm_insert_page);
 
 /*
  * Somebody does a pfn remapping that doesn't actually work as a vma.

mm/page_alloc.c

@@ -1772,16 +1772,16 @@ static int __devinit zone_batchsize(struct zone *zone)
 		batch = 1;
 
 	/*
-	 * We will be trying to allcoate bigger chunks of contiguous
-	 * memory of the order of fls(batch).  This should result in
-	 * better cache coloring.
+	 * Clamp the batch to a 2^n - 1 value. Having a power
+	 * of 2 value was found to be more likely to have
+	 * suboptimal cache aliasing properties in some cases.
 	 *
-	 * A sanity check also to ensure that batch is still in limits.
+	 * For example if 2 tasks are alternately allocating
+	 * batches of pages, one task can end up with a lot
+	 * of pages of one half of the possible page colors
+	 * and the other with pages of the other colors.
 	 */
-	batch = (1 << fls(batch + batch/2));
-
-	if (fls(batch) >= (PAGE_SHIFT + MAX_ORDER - 2))
-		batch = PAGE_SHIFT + ((MAX_ORDER - 1 - PAGE_SHIFT)/2);
+	batch = (1 << (fls(batch + batch/2)-1)) - 1;
 
 	return batch;
 }

net/ipv4/af_inet.c

@@ -228,13 +228,14 @@ static int inet_create(struct socket *sock, int protocol)
 	unsigned char answer_flags;
 	char answer_no_check;
 	int try_loading_module = 0;
-	int err = -ESOCKTNOSUPPORT;
+	int err;
 
 	sock->state = SS_UNCONNECTED;
 
 	/* Look for the requested type/protocol pair. */
 	answer = NULL;
 lookup_protocol:
+	err = -ESOCKTNOSUPPORT;
 	rcu_read_lock();
 	list_for_each_rcu(p, &inetsw[sock->type]) {
 		answer = list_entry(p, struct inet_protosw, list);
@@ -252,6 +253,7 @@ lookup_protocol:
 			if (IPPROTO_IP == answer->protocol)
 				break;
 		}
+		err = -EPROTONOSUPPORT;
 		answer = NULL;
 	}
 
@@ -280,9 +282,6 @@ lookup_protocol:
 	err = -EPERM;
 	if (answer->capability > 0 && !capable(answer->capability))
 		goto out_rcu_unlock;
-	err = -EPROTONOSUPPORT;
-	if (!protocol)
-		goto out_rcu_unlock;
 
 	sock->ops = answer->ops;
 	answer_prot = answer->prot;

net/ipv4/igmp.c

@@ -897,7 +897,10 @@ int igmp_rcv(struct sk_buff *skb)
 		/* Is it our report looped back? */
 		if (((struct rtable*)skb->dst)->fl.iif == 0)
 			break;
-		igmp_heard_report(in_dev, ih->group);
+		/* don't rely on MC router hearing unicast reports */
+		if (skb->pkt_type == PACKET_MULTICAST ||
+		    skb->pkt_type == PACKET_BROADCAST)
+			igmp_heard_report(in_dev, ih->group);
 		break;
 	case IGMP_PIM:
 #ifdef CONFIG_IP_PIMSM_V1

net/ipv6/af_inet6.c

@@ -92,10 +92,13 @@ static int inet6_create(struct socket *sock, int protocol)
 	struct proto *answer_prot;
 	unsigned char answer_flags;
 	char answer_no_check;
-	int rc;
+	int try_loading_module = 0;
+	int err;
 
 	/* Look for the requested type/protocol pair. */
 	answer = NULL;
+lookup_protocol:
+	err = -ESOCKTNOSUPPORT;
 	rcu_read_lock();
 	list_for_each_rcu(p, &inetsw6[sock->type]) {
 		answer = list_entry(p, struct inet_protosw, list);
@@ -113,21 +116,37 @@ static int inet6_create(struct socket *sock, int protocol)
 			if (IPPROTO_IP == answer->protocol)
 				break;
 		}
+		err = -EPROTONOSUPPORT;
 		answer = NULL;
 	}
 
-	rc = -ESOCKTNOSUPPORT;
-	if (!answer)
-		goto out_rcu_unlock;
-	rc = -EPERM;
+	if (!answer) {
+		if (try_loading_module < 2) {
+			rcu_read_unlock();
+			/*
+			 * Be more specific, e.g. net-pf-10-proto-132-type-1
+			 * (net-pf-PF_INET6-proto-IPPROTO_SCTP-type-SOCK_STREAM)
+			 */
+			if (++try_loading_module == 1)
+				request_module("net-pf-%d-proto-%d-type-%d",
+						PF_INET6, protocol, sock->type);
+			/*
+			 * Fall back to generic, e.g. net-pf-10-proto-132
+			 * (net-pf-PF_INET6-proto-IPPROTO_SCTP)
+			 */
+			else
+				request_module("net-pf-%d-proto-%d",
+						PF_INET6, protocol);
+			goto lookup_protocol;
+		} else
+			goto out_rcu_unlock;
+	}
+
+	err = -EPERM;
 	if (answer->capability > 0 && !capable(answer->capability))
 		goto out_rcu_unlock;
-	rc = -EPROTONOSUPPORT;
-	if (!protocol)
-		goto out_rcu_unlock;
 
 	sock->ops = answer->ops;
-
 	answer_prot = answer->prot;
 	answer_no_check = answer->no_check;
 	answer_flags = answer->flags;
@@ -135,14 +154,14 @@ static int inet6_create(struct socket *sock, int protocol)
 
 	BUG_TRAP(answer_prot->slab != NULL);
 
-	rc = -ENOBUFS;
+	err = -ENOBUFS;
 	sk = sk_alloc(PF_INET6, GFP_KERNEL, answer_prot, 1);
 	if (sk == NULL)
 		goto out;
 
 	sock_init_data(sock, sk);
 
-	rc = 0;
+	err = 0;
 	sk->sk_no_check = answer_no_check;
 	if (INET_PROTOSW_REUSE & answer_flags)
 		sk->sk_reuse = 1;
@@ -202,14 +221,14 @@ static int inet6_create(struct socket *sock, int protocol)
 		sk->sk_prot->hash(sk);
 	}
 	if (sk->sk_prot->init) {
-		rc = sk->sk_prot->init(sk);
-		if (rc) {
+		err = sk->sk_prot->init(sk);
+		if (err) {
 			sk_common_release(sk);
 			goto out;
 		}
 	}
 out:
-	return rc;
+	return err;
 out_rcu_unlock:
 	rcu_read_unlock();
 	goto out;

net/ipv6/mcast.c

@@ -1231,6 +1231,11 @@ int igmp6_event_report(struct sk_buff *skb)
 	if (skb->pkt_type == PACKET_LOOPBACK)
 		return 0;
 
+	/* send our report if the MC router may not have heard this report */
+	if (skb->pkt_type != PACKET_MULTICAST &&
+	    skb->pkt_type != PACKET_BROADCAST)
+		return 0;
+
 	if (!pskb_may_pull(skb, sizeof(struct in6_addr)))
 		return -EINVAL;
 

net/sctp/socket.c

@@ -4743,11 +4743,6 @@ static struct sk_buff *sctp_skb_recv_datagram(struct sock *sk, int flags,
 	struct sk_buff *skb;
 	long timeo;
 
-	/* Caller is allowed not to check sk->sk_err before calling.  */
-	error = sock_error(sk);
-	if (error)
-		goto no_packet;
-
 	timeo = sock_rcvtimeo(sk, noblock);
 
 	SCTP_DEBUG_PRINTK("Timeout: timeo: %ld, MAX: %ld.\n",
@@ -4774,6 +4769,11 @@ static struct sk_buff *sctp_skb_recv_datagram(struct sock *sk, int flags,
 		if (skb)
 			return skb;
 
+		/* Caller is allowed not to check sk->sk_err before calling. */
+		error = sock_error(sk);
+		if (error)
+			goto no_packet;
+
 		if (sk->sk_shutdown & RCV_SHUTDOWN)
 			break;
 

net/sctp/transport.c

@@ -261,7 +261,8 @@ void sctp_transport_route(struct sctp_transport *transport,
 		 * association's active path for getsockname().
 		 */ 
 		if (asoc && (transport == asoc->peer.active_path))
-			af->to_sk_saddr(&transport->saddr, asoc->base.sk);
+			opt->pf->af->to_sk_saddr(&transport->saddr,
+						 asoc->base.sk);
 	} else
 		transport->pmtu = SCTP_DEFAULT_MAXSEGMENT;
 }

net/sunrpc/rpc_pipe.c

@@ -59,7 +59,6 @@ __rpc_purge_upcall(struct inode *inode, int err)
 	struct rpc_inode *rpci = RPC_I(inode);
 
 	__rpc_purge_list(rpci, &rpci->pipe, err);
-	__rpc_purge_list(rpci, &rpci->in_upcall, err);
 	rpci->pipelen = 0;
 	wake_up(&rpci->waitq);
 }
@@ -119,6 +118,7 @@ rpc_close_pipes(struct inode *inode)
 	down(&inode->i_sem);
 	if (rpci->ops != NULL) {
 		rpci->nreaders = 0;
+		__rpc_purge_list(rpci, &rpci->in_upcall, -EPIPE);
 		__rpc_purge_upcall(inode, -EPIPE);
 		rpci->nwriters = 0;
 		if (rpci->ops->release_pipe)