diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt
index c1601e5..753d18a 100644
--- a/Documentation/kernel-parameters.txt
+++ b/Documentation/kernel-parameters.txt
@@ -557,6 +557,8 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
 			UART at the specified I/O port or MMIO address,
 			switching to the matching ttyS device later.  The
 			options are the same as for ttyS, above.
+		hvc<n>	Use the hypervisor console device <n>. This is for
+			both Xen and PowerPC hypervisors.
 
                 If the device connected to the port is not a TTY but a braille
                 device, prepend "brl," before the device type, for instance
@@ -742,6 +744,7 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
 
 	earlyprintk=	[X86,SH,BLACKFIN]
 			earlyprintk=vga
+			earlyprintk=xen
 			earlyprintk=serial[,ttySn[,baudrate]]
 			earlyprintk=ttySn[,baudrate]
 			earlyprintk=dbgp[debugController#]
@@ -759,6 +762,8 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
 			The VGA output is eventually overwritten by the real
 			console.
 
+			The xen output can only be used by Xen PV guests.
+
 	ekgdboc=	[X86,KGDB] Allow early kernel console debugging
 			ekgdboc=kbd
 
diff --git a/Makefile b/Makefile
index 250be36..282e8da 100644
--- a/Makefile
+++ b/Makefile
@@ -1,6 +1,6 @@
 VERSION = 3
 PATCHLEVEL = 4
-SUBLEVEL = 34
+SUBLEVEL = 35
 EXTRAVERSION =
 NAME = Saber-toothed Squirrel
 
diff --git a/arch/x86/kernel/head.c b/arch/x86/kernel/head.c
index 48d9d4e..992f442 100644
--- a/arch/x86/kernel/head.c
+++ b/arch/x86/kernel/head.c
@@ -5,8 +5,6 @@
 #include <asm/setup.h>
 #include <asm/bios_ebda.h>
 
-#define BIOS_LOWMEM_KILOBYTES 0x413
-
 /*
  * The BIOS places the EBDA/XBDA at the top of conventional
  * memory, and usually decreases the reported amount of
@@ -16,17 +14,30 @@
  * chipset: reserve a page before VGA to prevent PCI prefetch
  * into it (errata #56). Usually the page is reserved anyways,
  * unless you have no PS/2 mouse plugged in.
+ *
+ * This functions is deliberately very conservative.  Losing
+ * memory in the bottom megabyte is rarely a problem, as long
+ * as we have enough memory to install the trampoline.  Using
+ * memory that is in use by the BIOS or by some DMA device
+ * the BIOS didn't shut down *is* a big problem.
  */
+
+#define BIOS_LOWMEM_KILOBYTES	0x413
+#define LOWMEM_CAP		0x9f000U	/* Absolute maximum */
+#define INSANE_CUTOFF		0x20000U	/* Less than this = insane */
+
 void __init reserve_ebda_region(void)
 {
 	unsigned int lowmem, ebda_addr;
 
-	/* To determine the position of the EBDA and the */
-	/* end of conventional memory, we need to look at */
-	/* the BIOS data area. In a paravirtual environment */
-	/* that area is absent. We'll just have to assume */
-	/* that the paravirt case can handle memory setup */
-	/* correctly, without our help. */
+	/*
+	 * To determine the position of the EBDA and the
+	 * end of conventional memory, we need to look at
+	 * the BIOS data area. In a paravirtual environment
+	 * that area is absent. We'll just have to assume
+	 * that the paravirt case can handle memory setup
+	 * correctly, without our help.
+	 */
 	if (paravirt_enabled())
 		return;
 
@@ -37,19 +48,23 @@ void __init reserve_ebda_region(void)
 	/* start of EBDA area */
 	ebda_addr = get_bios_ebda();
 
-	/* Fixup: bios puts an EBDA in the top 64K segment */
-	/* of conventional memory, but does not adjust lowmem. */
-	if ((lowmem - ebda_addr) <= 0x10000)
-		lowmem = ebda_addr;
+	/*
+	 * Note: some old Dells seem to need 4k EBDA without
+	 * reporting so, so just consider the memory above 0x9f000
+	 * to be off limits (bugzilla 2990).
+	 */
+
+	/* If the EBDA address is below 128K, assume it is bogus */
+	if (ebda_addr < INSANE_CUTOFF)
+		ebda_addr = LOWMEM_CAP;
 
-	/* Fixup: bios does not report an EBDA at all. */
-	/* Some old Dells seem to need 4k anyhow (bugzilla 2990) */
-	if ((ebda_addr == 0) && (lowmem >= 0x9f000))
-		lowmem = 0x9f000;
+	/* If lowmem is less than 128K, assume it is bogus */
+	if (lowmem < INSANE_CUTOFF)
+		lowmem = LOWMEM_CAP;
 
-	/* Paranoia: should never happen, but... */
-	if ((lowmem == 0) || (lowmem >= 0x100000))
-		lowmem = 0x9f000;
+	/* Use the lower of the lowmem and EBDA markers as the cutoff */
+	lowmem = min(lowmem, ebda_addr);
+	lowmem = min(lowmem, LOWMEM_CAP); /* Absolute cap */
 
 	/* reserve all memory between lowmem and the 1MB mark */
 	memblock_reserve(lowmem, 0x100000 - lowmem);
diff --git a/arch/x86/platform/efi/efi.c b/arch/x86/platform/efi/efi.c
index 3705bb0..1e40637 100644
--- a/arch/x86/platform/efi/efi.c
+++ b/arch/x86/platform/efi/efi.c
@@ -84,9 +84,10 @@ int efi_enabled(int facility)
 }
 EXPORT_SYMBOL(efi_enabled);
 
+static bool disable_runtime = false;
 static int __init setup_noefi(char *arg)
 {
-	clear_bit(EFI_RUNTIME_SERVICES, &x86_efi_facility);
+	disable_runtime = true;
 	return 0;
 }
 early_param("noefi", setup_noefi);
@@ -733,7 +734,7 @@ void __init efi_init(void)
 	if (!efi_is_native())
 		pr_info("No EFI runtime due to 32/64-bit mismatch with kernel\n");
 	else {
-		if (efi_runtime_init())
+		if (disable_runtime || efi_runtime_init())
 			return;
 		set_bit(EFI_RUNTIME_SERVICES, &x86_efi_facility);
 	}
diff --git a/block/genhd.c b/block/genhd.c
index 9cf5583..60108d9 100644
--- a/block/genhd.c
+++ b/block/genhd.c
@@ -25,7 +25,7 @@ static DEFINE_MUTEX(block_class_lock);
 struct kobject *block_depr;
 
 /* for extended dynamic devt allocation, currently only one major is used */
-#define MAX_EXT_DEVT		(1 << MINORBITS)
+#define NR_EXT_DEVT		(1 << MINORBITS)
 
 /* For extended devt allocation.  ext_devt_mutex prevents look up
  * results from going away underneath its user.
@@ -420,17 +420,18 @@ int blk_alloc_devt(struct hd_struct *part, dev_t *devt)
 	do {
 		if (!idr_pre_get(&ext_devt_idr, GFP_KERNEL))
 			return -ENOMEM;
+		mutex_lock(&ext_devt_mutex);
 		rc = idr_get_new(&ext_devt_idr, part, &idx);
+		if (!rc && idx >= NR_EXT_DEVT) {
+			idr_remove(&ext_devt_idr, idx);
+			rc = -EBUSY;
+		}
+		mutex_unlock(&ext_devt_mutex);
 	} while (rc == -EAGAIN);
 
 	if (rc)
 		return rc;
 
-	if (idx > MAX_EXT_DEVT) {
-		idr_remove(&ext_devt_idr, idx);
-		return -EBUSY;
-	}
-
 	*devt = MKDEV(BLOCK_EXT_MAJOR, blk_mangle_minor(idx));
 	return 0;
 }
@@ -644,7 +645,6 @@ void del_gendisk(struct gendisk *disk)
 	disk_part_iter_exit(&piter);
 
 	invalidate_partition(disk, 0);
-	blk_free_devt(disk_to_dev(disk)->devt);
 	set_capacity(disk, 0);
 	disk->flags &= ~GENHD_FL_UP;
 
@@ -662,6 +662,7 @@ void del_gendisk(struct gendisk *disk)
 	if (!sysfs_deprecated)
 		sysfs_remove_link(block_depr, dev_name(disk_to_dev(disk)));
 	device_del(disk_to_dev(disk));
+	blk_free_devt(disk_to_dev(disk)->devt);
 }
 EXPORT_SYMBOL(del_gendisk);
 
diff --git a/block/partition-generic.c b/block/partition-generic.c
index 6df5d69..7b8b8d1 100644
--- a/block/partition-generic.c
+++ b/block/partition-generic.c
@@ -249,11 +249,11 @@ void delete_partition(struct gendisk *disk, int partno)
 	if (!part)
 		return;
 
-	blk_free_devt(part_devt(part));
 	rcu_assign_pointer(ptbl->part[partno], NULL);
 	rcu_assign_pointer(ptbl->last_lookup, NULL);
 	kobject_put(part->holder_dir);
 	device_del(part_to_dev(part));
+	blk_free_devt(part_devt(part));
 
 	hd_struct_put(part);
 }
diff --git a/drivers/acpi/sleep.c b/drivers/acpi/sleep.c
index aa0a904..189c704 100644
--- a/drivers/acpi/sleep.c
+++ b/drivers/acpi/sleep.c
@@ -186,6 +186,14 @@ static struct dmi_system_id __initdata acpisleep_dmi_table[] = {
 	},
 	{
 	.callback = init_nvs_nosave,
+	.ident = "Sony Vaio VGN-FW41E_H",
+	.matches = {
+		DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
+		DMI_MATCH(DMI_PRODUCT_NAME, "VGN-FW41E_H"),
+		},
+	},
+	{
+	.callback = init_nvs_nosave,
 	.ident = "Sony Vaio VGN-FW21E",
 	.matches = {
 		DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
diff --git a/drivers/ata/ata_piix.c b/drivers/ata/ata_piix.c
index 3c809bf..88f6908 100644
--- a/drivers/ata/ata_piix.c
+++ b/drivers/ata/ata_piix.c
@@ -331,6 +331,23 @@ static const struct pci_device_id piix_pci_tbl[] = {
 	{ 0x8086, 0x8c09, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich8_2port_sata },
 	/* SATA Controller IDE (DH89xxCC) */
 	{ 0x8086, 0x2326, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich8_2port_sata },
+	/* SATA Controller IDE (Avoton) */
+	{ 0x8086, 0x1f20, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich8_sata_snb },
+	/* SATA Controller IDE (Avoton) */
+	{ 0x8086, 0x1f21, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich8_sata_snb },
+	/* SATA Controller IDE (Avoton) */
+	{ 0x8086, 0x1f30, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich8_2port_sata },
+	/* SATA Controller IDE (Avoton) */
+	{ 0x8086, 0x1f31, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich8_2port_sata },
+	/* SATA Controller IDE (Wellsburg) */
+	{ 0x8086, 0x8d00, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich8_sata_snb },
+	/* SATA Controller IDE (Wellsburg) */
+	{ 0x8086, 0x8d08, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich8_2port_sata },
+	/* SATA Controller IDE (Wellsburg) */
+	{ 0x8086, 0x8d60, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich8_sata_snb },
+	/* SATA Controller IDE (Wellsburg) */
+	{ 0x8086, 0x8d68, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich8_2port_sata },
+
 	{ }	/* terminate list */
 };
 
diff --git a/drivers/block/xen-blkback/blkback.c b/drivers/block/xen-blkback/blkback.c
index c6decb9..73d8c92 100644
--- a/drivers/block/xen-blkback/blkback.c
+++ b/drivers/block/xen-blkback/blkback.c
@@ -623,7 +623,6 @@ static int dispatch_rw_block_io(struct xen_blkif *blkif,
 		goto fail_response;
 	}
 
-	preq.dev           = req->u.rw.handle;
 	preq.sector_number = req->u.rw.sector_number;
 	preq.nr_sects      = 0;
 
diff --git a/drivers/block/xen-blkback/xenbus.c b/drivers/block/xen-blkback/xenbus.c
index 4f66171..a155254 100644
--- a/drivers/block/xen-blkback/xenbus.c
+++ b/drivers/block/xen-blkback/xenbus.c
@@ -367,6 +367,7 @@ static int xen_blkbk_remove(struct xenbus_device *dev)
 		be->blkif = NULL;
 	}
 
+	kfree(be->mode);
 	kfree(be);
 	dev_set_drvdata(&dev->dev, NULL);
 	return 0;
@@ -502,6 +503,7 @@ static void backend_changed(struct xenbus_watch *watch,
 		= container_of(watch, struct backend_info, backend_watch);
 	struct xenbus_device *dev = be->dev;
 	int cdrom = 0;
+	unsigned long handle;
 	char *device_type;
 
 	DPRINTK("");
@@ -521,10 +523,10 @@ static void backend_changed(struct xenbus_watch *watch,
 		return;
 	}
 
-	if ((be->major || be->minor) &&
-	    ((be->major != major) || (be->minor != minor))) {
-		pr_warn(DRV_PFX "changing physical device (from %x:%x to %x:%x) not supported.\n",
-			be->major, be->minor, major, minor);
+	if (be->major | be->minor) {
+		if (be->major != major || be->minor != minor)
+			pr_warn(DRV_PFX "changing physical device (from %x:%x to %x:%x) not supported.\n",
+				be->major, be->minor, major, minor);
 		return;
 	}
 
@@ -542,36 +544,33 @@ static void backend_changed(struct xenbus_watch *watch,
 		kfree(device_type);
 	}
 
-	if (be->major == 0 && be->minor == 0) {
-		/* Front end dir is a number, which is used as the handle. */
-
-		char *p = strrchr(dev->otherend, '/') + 1;
-		long handle;
-		err = strict_strtoul(p, 0, &handle);
-		if (err)
-			return;
+	/* Front end dir is a number, which is used as the handle. */
+	err = strict_strtoul(strrchr(dev->otherend, '/') + 1, 0, &handle);
+	if (err)
+		return;
 
-		be->major = major;
-		be->minor = minor;
+	be->major = major;
+	be->minor = minor;
 
-		err = xen_vbd_create(be->blkif, handle, major, minor,
-				 (NULL == strchr(be->mode, 'w')), cdrom);
-		if (err) {
-			be->major = 0;
-			be->minor = 0;
-			xenbus_dev_fatal(dev, err, "creating vbd structure");
-			return;
-		}
+	err = xen_vbd_create(be->blkif, handle, major, minor,
+			     !strchr(be->mode, 'w'), cdrom);
 
+	if (err)
+		xenbus_dev_fatal(dev, err, "creating vbd structure");
+	else {
 		err = xenvbd_sysfs_addif(dev);
 		if (err) {
 			xen_vbd_free(&be->blkif->vbd);
-			be->major = 0;
-			be->minor = 0;
 			xenbus_dev_fatal(dev, err, "creating sysfs entries");
-			return;
 		}
+	}
 
+	if (err) {
+		kfree(be->mode);
+		be->mode = NULL;
+		be->major = 0;
+		be->minor = 0;
+	} else {
 		/* We're potentially connected now */
 		xen_update_blkif_status(be->blkif);
 	}
diff --git a/drivers/firewire/core-device.c b/drivers/firewire/core-device.c
index 68109e9..04ebeaf 100644
--- a/drivers/firewire/core-device.c
+++ b/drivers/firewire/core-device.c
@@ -999,6 +999,10 @@ static void fw_device_init(struct work_struct *work)
 	ret = idr_pre_get(&fw_device_idr, GFP_KERNEL) ?
 	      idr_get_new(&fw_device_idr, device, &minor) :
 	      -ENOMEM;
+	if (minor >= 1 << MINORBITS) {
+		idr_remove(&fw_device_idr, minor);
+		minor = -ENOSPC;
+	}
 	up_write(&fw_device_rwsem);
 
 	if (ret < 0)
diff --git a/drivers/hid/hid-core.c b/drivers/hid/hid-core.c
index 1a92a27..ff73d60 100644
--- a/drivers/hid/hid-core.c
+++ b/drivers/hid/hid-core.c
@@ -1922,6 +1922,7 @@ static const struct hid_device_id hid_ignore_list[] = {
 	{ HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_HYBRID) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_HEATCONTROL) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_MADCATZ, USB_DEVICE_ID_MADCATZ_BEATPAD) },
+	{ HID_USB_DEVICE(USB_VENDOR_ID_MASTERKIT, USB_DEVICE_ID_MASTERKIT_MA901RADIO) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_MCC, USB_DEVICE_ID_MCC_PMD1024LS) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_MCC, USB_DEVICE_ID_MCC_PMD1208LS) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_MICROCHIP, USB_DEVICE_ID_PICKIT1) },
diff --git a/drivers/hid/hid-ids.h b/drivers/hid/hid-ids.h
index 5583899..02f4664 100644
--- a/drivers/hid/hid-ids.h
+++ b/drivers/hid/hid-ids.h
@@ -520,6 +520,9 @@
 #define USB_VENDOR_ID_MADCATZ		0x0738
 #define USB_DEVICE_ID_MADCATZ_BEATPAD	0x4540
 
+#define USB_VENDOR_ID_MASTERKIT			0x16c0
+#define USB_DEVICE_ID_MASTERKIT_MA901RADIO	0x05df
+
 #define USB_VENDOR_ID_MCC		0x09db
 #define USB_DEVICE_ID_MCC_PMD1024LS	0x0076
 #define USB_DEVICE_ID_MCC_PMD1208LS	0x007a
diff --git a/drivers/iommu/amd_iommu_init.c b/drivers/iommu/amd_iommu_init.c
index ef0ae93..b573f80 100644
--- a/drivers/iommu/amd_iommu_init.c
+++ b/drivers/iommu/amd_iommu_init.c
@@ -1572,8 +1572,6 @@ int __init amd_iommu_init_hardware(void)
 	if (amd_iommu_pd_alloc_bitmap == NULL)
 		goto free;
 
-	/* init the device table */
-	init_device_table();
 
 	/*
 	 * let all alias entries point to itself
@@ -1655,6 +1653,7 @@ out:
  */
 static int __init amd_iommu_init(void)
 {
+	struct amd_iommu *iommu;
 	int ret = 0;
 
 	ret = amd_iommu_init_hardware();
@@ -1673,6 +1672,12 @@ static int __init amd_iommu_init(void)
 	if (ret)
 		goto free;
 
+	/* init the device table */
+	init_device_table();
+
+	for_each_iommu(iommu)
+		iommu_flush_all_caches(iommu);
+
 	amd_iommu_init_api();
 
 	x86_platform.iommu_shutdown = disable_iommus;
diff --git a/drivers/media/rc/rc-main.c b/drivers/media/rc/rc-main.c
index cabc19c..cec1f8c 100644
--- a/drivers/media/rc/rc-main.c
+++ b/drivers/media/rc/rc-main.c
@@ -778,8 +778,10 @@ static ssize_t show_protocols(struct device *device,
 	} else if (dev->raw) {
 		enabled = dev->raw->enabled_protocols;
 		allowed = ir_raw_get_allowed_protocols();
-	} else
+	} else {
+		mutex_unlock(&dev->lock);
 		return -ENODEV;
+	}
 
 	IR_dprintk(1, "allowed - 0x%llx, enabled - 0x%llx\n",
 		   (long long)allowed,
diff --git a/drivers/net/wireless/ath/ath9k/ar9003_calib.c b/drivers/net/wireless/ath/ath9k/ar9003_calib.c
index 63089cc..9284bca 100644
--- a/drivers/net/wireless/ath/ath9k/ar9003_calib.c
+++ b/drivers/net/wireless/ath/ath9k/ar9003_calib.c
@@ -938,6 +938,8 @@ static bool ar9003_hw_init_cal(struct ath_hw *ah,
 					  AR_PHY_CL_TAB_1,
 					  AR_PHY_CL_TAB_2 };
 
+	ar9003_hw_set_chain_masks(ah, ah->caps.rx_chainmask, ah->caps.tx_chainmask);
+
 	if (rtt) {
 		if (!ar9003_hw_rtt_restore(ah, chan))
 			run_rtt_cal = true;
diff --git a/drivers/net/wireless/ath/ath9k/ar9003_phy.c b/drivers/net/wireless/ath/ath9k/ar9003_phy.c
index 600aca9..f86ee0c 100644
--- a/drivers/net/wireless/ath/ath9k/ar9003_phy.c
+++ b/drivers/net/wireless/ath/ath9k/ar9003_phy.c
@@ -543,7 +543,7 @@ static void ar9003_hw_init_bb(struct ath_hw *ah,
 	udelay(synthDelay + BASE_ACTIVATE_DELAY);
 }
 
-static void ar9003_hw_set_chain_masks(struct ath_hw *ah, u8 rx, u8 tx)
+void ar9003_hw_set_chain_masks(struct ath_hw *ah, u8 rx, u8 tx)
 {
 	switch (rx) {
 	case 0x5:
diff --git a/drivers/net/wireless/ath/ath9k/hw.h b/drivers/net/wireless/ath/ath9k/hw.h
index f8e1fbb..d5c5dca 100644
--- a/drivers/net/wireless/ath/ath9k/hw.h
+++ b/drivers/net/wireless/ath/ath9k/hw.h
@@ -1014,6 +1014,7 @@ int ar9003_paprd_setup_gain_table(struct ath_hw *ah, int chain);
 int ar9003_paprd_init_table(struct ath_hw *ah);
 bool ar9003_paprd_is_done(struct ath_hw *ah);
 void ar9003_hw_set_paprd_txdesc(struct ath_hw *ah, void *ds, u8 chains);
+void ar9003_hw_set_chain_masks(struct ath_hw *ah, u8 rx, u8 tx);
 
 /* Hardware family op attach helpers */
 void ar5008_hw_attach_phy_ops(struct ath_hw *ah);
diff --git a/drivers/power/ab8500_btemp.c b/drivers/power/ab8500_btemp.c
index d8bb993..2a6bf76 100644
--- a/drivers/power/ab8500_btemp.c
+++ b/drivers/power/ab8500_btemp.c
@@ -1115,7 +1115,7 @@ static void __exit ab8500_btemp_exit(void)
 	platform_driver_unregister(&ab8500_btemp_driver);
 }
 
-subsys_initcall_sync(ab8500_btemp_init);
+device_initcall(ab8500_btemp_init);
 module_exit(ab8500_btemp_exit);
 
 MODULE_LICENSE("GPL v2");
diff --git a/drivers/power/abx500_chargalg.c b/drivers/power/abx500_chargalg.c
index 804b88c..d8cd151 100644
--- a/drivers/power/abx500_chargalg.c
+++ b/drivers/power/abx500_chargalg.c
@@ -1698,7 +1698,7 @@ static ssize_t abx500_chargalg_sysfs_charger(struct kobject *kobj,
 static struct attribute abx500_chargalg_en_charger = \
 {
 	.name = "chargalg",
-	.mode = S_IWUGO,
+	.mode = S_IWUSR,
 };
 
 static struct attribute *abx500_chargalg_chg[] = {
diff --git a/drivers/staging/comedi/comedi_fops.c b/drivers/staging/comedi/comedi_fops.c
index cf67ce5..3799cf1 100644
--- a/drivers/staging/comedi/comedi_fops.c
+++ b/drivers/staging/comedi/comedi_fops.c
@@ -1577,7 +1577,7 @@ static unsigned int comedi_poll(struct file *file, poll_table * wait)
 
 	mask = 0;
 	read_subdev = comedi_get_read_subdevice(dev_file_info);
-	if (read_subdev) {
+	if (read_subdev && read_subdev->async) {
 		poll_wait(file, &read_subdev->async->wait_head, wait);
 		if (!read_subdev->busy
 		    || comedi_buf_read_n_available(read_subdev->async) > 0
@@ -1587,7 +1587,7 @@ static unsigned int comedi_poll(struct file *file, poll_table * wait)
 		}
 	}
 	write_subdev = comedi_get_write_subdevice(dev_file_info);
-	if (write_subdev) {
+	if (write_subdev && write_subdev->async) {
 		poll_wait(file, &write_subdev->async->wait_head, wait);
 		comedi_buf_write_alloc(write_subdev->async,
 				       write_subdev->async->prealloc_bufsz);
@@ -1629,7 +1629,7 @@ static ssize_t comedi_write(struct file *file, const char __user *buf,
 	}
 
 	s = comedi_get_write_subdevice(dev_file_info);
-	if (s == NULL) {
+	if (s == NULL || s->async == NULL) {
 		retval = -EIO;
 		goto done;
 	}
@@ -1740,7 +1740,7 @@ static ssize_t comedi_read(struct file *file, char __user *buf, size_t nbytes,
 	}
 
 	s = comedi_get_read_subdevice(dev_file_info);
-	if (s == NULL) {
+	if (s == NULL || s->async == NULL) {
 		retval = -EIO;
 		goto done;
 	}
diff --git a/drivers/staging/comedi/drivers/ni_labpc.c b/drivers/staging/comedi/drivers/ni_labpc.c
index 721b2be..0517a23 100644
--- a/drivers/staging/comedi/drivers/ni_labpc.c
+++ b/drivers/staging/comedi/drivers/ni_labpc.c
@@ -1264,7 +1264,9 @@ static int labpc_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s)
 	else
 		channel = CR_CHAN(cmd->chanlist[0]);
 	/* munge channel bits for differential / scan disabled mode */
-	if (labpc_ai_scan_mode(cmd) != MODE_SINGLE_CHAN && aref == AREF_DIFF)
+	if ((labpc_ai_scan_mode(cmd) == MODE_SINGLE_CHAN ||
+	     labpc_ai_scan_mode(cmd) == MODE_SINGLE_CHAN_INTERVAL) &&
+	    aref == AREF_DIFF)
 		channel *= 2;
 	devpriv->command1_bits |= ADC_CHAN_BITS(channel);
 	devpriv->command1_bits |= thisboard->ai_range_code[range];
@@ -1280,21 +1282,6 @@ static int labpc_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s)
 		devpriv->write_byte(devpriv->command1_bits,
 				    dev->iobase + COMMAND1_REG);
 	}
-	/*  setup any external triggering/pacing (command4 register) */
-	devpriv->command4_bits = 0;
-	if (cmd->convert_src != TRIG_EXT)
-		devpriv->command4_bits |= EXT_CONVERT_DISABLE_BIT;
-	/* XXX should discard first scan when using interval scanning
-	 * since manual says it is not synced with scan clock */
-	if (labpc_use_continuous_mode(cmd) == 0) {
-		devpriv->command4_bits |= INTERVAL_SCAN_EN_BIT;
-		if (cmd->scan_begin_src == TRIG_EXT)
-			devpriv->command4_bits |= EXT_SCAN_EN_BIT;
-	}
-	/*  single-ended/differential */
-	if (aref == AREF_DIFF)
-		devpriv->command4_bits |= ADC_DIFF_BIT;
-	devpriv->write_byte(devpriv->command4_bits, dev->iobase + COMMAND4_REG);
 
 	devpriv->write_byte(cmd->chanlist_len,
 			    dev->iobase + INTERVAL_COUNT_REG);
@@ -1374,6 +1361,22 @@ static int labpc_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s)
 		devpriv->command3_bits &= ~ADC_FNE_INTR_EN_BIT;
 	devpriv->write_byte(devpriv->command3_bits, dev->iobase + COMMAND3_REG);
 
+	/*  setup any external triggering/pacing (command4 register) */
+	devpriv->command4_bits = 0;
+	if (cmd->convert_src != TRIG_EXT)
+		devpriv->command4_bits |= EXT_CONVERT_DISABLE_BIT;
+	/* XXX should discard first scan when using interval scanning
+	 * since manual says it is not synced with scan clock */
+	if (labpc_use_continuous_mode(cmd) == 0) {
+		devpriv->command4_bits |= INTERVAL_SCAN_EN_BIT;
+		if (cmd->scan_begin_src == TRIG_EXT)
+			devpriv->command4_bits |= EXT_SCAN_EN_BIT;
+	}
+	/*  single-ended/differential */
+	if (aref == AREF_DIFF)
+		devpriv->command4_bits |= ADC_DIFF_BIT;
+	devpriv->write_byte(devpriv->command4_bits, dev->iobase + COMMAND4_REG);
+
 	/*  startup acquisition */
 
 	/*  command2 reg */
diff --git a/drivers/target/target_core_device.c b/drivers/target/target_core_device.c
index 4ecf9d6..79d9865 100644
--- a/drivers/target/target_core_device.c
+++ b/drivers/target/target_core_device.c
@@ -1483,24 +1483,18 @@ static struct se_lun *core_dev_get_lun(struct se_portal_group *tpg, u32 unpacked
 
 struct se_lun_acl *core_dev_init_initiator_node_lun_acl(
 	struct se_portal_group *tpg,
+	struct se_node_acl *nacl,
 	u32 mapped_lun,
-	char *initiatorname,
 	int *ret)
 {
 	struct se_lun_acl *lacl;
-	struct se_node_acl *nacl;
 
-	if (strlen(initiatorname) >= TRANSPORT_IQN_LEN) {
+	if (strlen(nacl->initiatorname) >= TRANSPORT_IQN_LEN) {
 		pr_err("%s InitiatorName exceeds maximum size.\n",
 			tpg->se_tpg_tfo->get_fabric_name());
 		*ret = -EOVERFLOW;
 		return NULL;
 	}
-	nacl = core_tpg_get_initiator_node_acl(tpg, initiatorname);
-	if (!nacl) {
-		*ret = -EINVAL;
-		return NULL;
-	}
 	lacl = kzalloc(sizeof(struct se_lun_acl), GFP_KERNEL);
 	if (!lacl) {
 		pr_err("Unable to allocate memory for struct se_lun_acl.\n");
@@ -1511,7 +1505,8 @@ struct se_lun_acl *core_dev_init_initiator_node_lun_acl(
 	INIT_LIST_HEAD(&lacl->lacl_list);
 	lacl->mapped_lun = mapped_lun;
 	lacl->se_lun_nacl = nacl;
-	snprintf(lacl->initiatorname, TRANSPORT_IQN_LEN, "%s", initiatorname);
+	snprintf(lacl->initiatorname, TRANSPORT_IQN_LEN, "%s",
+		 nacl->initiatorname);
 
 	return lacl;
 }
diff --git a/drivers/target/target_core_fabric_configfs.c b/drivers/target/target_core_fabric_configfs.c
index 817ba7c..6b79ee7 100644
--- a/drivers/target/target_core_fabric_configfs.c
+++ b/drivers/target/target_core_fabric_configfs.c
@@ -356,9 +356,17 @@ static struct config_group *target_fabric_make_mappedlun(
 		ret = -EINVAL;
 		goto out;
 	}
+	if (mapped_lun > (TRANSPORT_MAX_LUNS_PER_TPG-1)) {
+		pr_err("Mapped LUN: %lu exceeds TRANSPORT_MAX_LUNS_PER_TPG"
+			"-1: %u for Target Portal Group: %u\n", mapped_lun,
+			TRANSPORT_MAX_LUNS_PER_TPG-1,
+			se_tpg->se_tpg_tfo->tpg_get_tag(se_tpg));
+		ret = -EINVAL;
+		goto out;
+	}
 
-	lacl = core_dev_init_initiator_node_lun_acl(se_tpg, mapped_lun,
-			config_item_name(acl_ci), &ret);
+	lacl = core_dev_init_initiator_node_lun_acl(se_tpg, se_nacl,
+			mapped_lun, &ret);
 	if (!lacl) {
 		ret = -EINVAL;
 		goto out;
diff --git a/drivers/target/target_core_internal.h b/drivers/target/target_core_internal.h
index 21c0563..17179b1 100644
--- a/drivers/target/target_core_internal.h
+++ b/drivers/target/target_core_internal.h
@@ -61,7 +61,7 @@ struct se_lun *core_dev_add_lun(struct se_portal_group *, struct se_hba *,
 int	core_dev_del_lun(struct se_portal_group *, u32);
 struct se_lun *core_get_lun_from_tpg(struct se_portal_group *, u32);
 struct se_lun_acl *core_dev_init_initiator_node_lun_acl(struct se_portal_group *,
-		u32, char *, int *);
+		struct se_node_acl *, u32, int *);
 int	core_dev_add_initiator_node_lun_acl(struct se_portal_group *,
 		struct se_lun_acl *, u32, u32);
 int	core_dev_del_initiator_node_lun_acl(struct se_portal_group *,
diff --git a/drivers/target/target_core_tpg.c b/drivers/target/target_core_tpg.c
index ba537b6..0e17fa3 100644
--- a/drivers/target/target_core_tpg.c
+++ b/drivers/target/target_core_tpg.c
@@ -114,16 +114,10 @@ struct se_node_acl *core_tpg_get_initiator_node_acl(
 	struct se_node_acl *acl;
 
 	spin_lock_irq(&tpg->acl_node_lock);
-	list_for_each_entry(acl, &tpg->acl_node_list, acl_list) {
-		if (!strcmp(acl->initiatorname, initiatorname) &&
-		    !acl->dynamic_node_acl) {
-			spin_unlock_irq(&tpg->acl_node_lock);
-			return acl;
-		}
-	}
+	acl = __core_tpg_get_initiator_node_acl(tpg, initiatorname);
 	spin_unlock_irq(&tpg->acl_node_lock);
 
-	return NULL;
+	return acl;
 }
 
 /*	core_tpg_add_node_to_devs():
diff --git a/drivers/vhost/vhost.c b/drivers/vhost/vhost.c
index 51e4c1e..1a9e2a9 100644
--- a/drivers/vhost/vhost.c
+++ b/drivers/vhost/vhost.c
@@ -1074,7 +1074,7 @@ static int translate_desc(struct vhost_dev *dev, u64 addr, u32 len,
 		}
 		_iov = iov + ret;
 		size = reg->memory_size - addr + reg->guest_phys_addr;
-		_iov->iov_len = min((u64)len, size);
+		_iov->iov_len = min((u64)len - s, size);
 		_iov->iov_base = (void __user *)(unsigned long)
 			(reg->userspace_addr + addr - reg->guest_phys_addr);
 		s += size;
diff --git a/fs/direct-io.c b/fs/direct-io.c
index f4aadd1..29c4fda 100644
--- a/fs/direct-io.c
+++ b/fs/direct-io.c
@@ -305,9 +305,9 @@ static ssize_t dio_complete(struct dio *dio, loff_t offset, ssize_t ret, bool is
 		dio->end_io(dio->iocb, offset, transferred,
 			    dio->private, ret, is_async);
 	} else {
+		inode_dio_done(dio->inode);
 		if (is_async)
 			aio_complete(dio->iocb, ret, 0);
-		inode_dio_done(dio->inode);
 	}
 
 	return ret;
diff --git a/fs/ext4/balloc.c b/fs/ext4/balloc.c
index df76291..3e1018a 100644
--- a/fs/ext4/balloc.c
+++ b/fs/ext4/balloc.c
@@ -326,7 +326,7 @@ err_out:
 	return 0;
 }
 /**
- * ext4_read_block_bitmap()
+ * ext4_read_block_bitmap_nowait()
  * @sb:			super block
  * @block_group:	given block group
  *
@@ -422,6 +422,8 @@ ext4_read_block_bitmap(struct super_block *sb, ext4_group_t block_group)
 	struct buffer_head *bh;
 
 	bh = ext4_read_block_bitmap_nowait(sb, block_group);
+	if (!bh)
+		return NULL;
 	if (ext4_wait_block_bitmap(sb, block_group, bh)) {
 		put_bh(bh);
 		return NULL;
@@ -447,11 +449,16 @@ static int ext4_has_free_clusters(struct ext4_sb_info *sbi,
 
 	free_clusters  = percpu_counter_read_positive(fcc);
 	dirty_clusters = percpu_counter_read_positive(dcc);
-	root_clusters = EXT4_B2C(sbi, ext4_r_blocks_count(sbi->s_es));
+
+	/*
+	 * r_blocks_count should always be multiple of the cluster ratio so
+	 * we are safe to do a plane bit shift only.
+	 */
+	root_clusters = ext4_r_blocks_count(sbi->s_es) >> sbi->s_cluster_bits;
 
 	if (free_clusters - (nclusters + root_clusters + dirty_clusters) <
 					EXT4_FREECLUSTERS_WATERMARK) {
-		free_clusters  = EXT4_C2B(sbi, percpu_counter_sum_positive(fcc));
+		free_clusters  = percpu_counter_sum_positive(fcc);
 		dirty_clusters = percpu_counter_sum_positive(dcc);
 	}
 	/* Check whether we have space after accounting for current
diff --git a/fs/ext4/mballoc.c b/fs/ext4/mballoc.c
index e77c4fe..3122ece 100644
--- a/fs/ext4/mballoc.c
+++ b/fs/ext4/mballoc.c
@@ -4126,7 +4126,7 @@ static void ext4_mb_add_n_trim(struct ext4_allocation_context *ac)
 		/* The max size of hash table is PREALLOC_TB_SIZE */
 		order = PREALLOC_TB_SIZE - 1;
 	/* Add the prealloc space to lg */
-	rcu_read_lock();
+	spin_lock(&lg->lg_prealloc_lock);
 	list_for_each_entry_rcu(tmp_pa, &lg->lg_prealloc_list[order],
 						pa_inode_list) {
 		spin_lock(&tmp_pa->pa_lock);
@@ -4150,12 +4150,12 @@ static void ext4_mb_add_n_trim(struct ext4_allocation_context *ac)
 	if (!added)
 		list_add_tail_rcu(&pa->pa_inode_list,
 					&lg->lg_prealloc_list[order]);
-	rcu_read_unlock();
+	spin_unlock(&lg->lg_prealloc_lock);
 
 	/* Now trim the list to be not more than 8 elements */
 	if (lg_prealloc_count > 8) {
 		ext4_mb_discard_lg_preallocations(sb, lg,
-						order, lg_prealloc_count);
+						  order, lg_prealloc_count);
 		return;
 	}
 	return ;
diff --git a/fs/ext4/xattr.c b/fs/ext4/xattr.c
index e88748e..e712a8c 100644
--- a/fs/ext4/xattr.c
+++ b/fs/ext4/xattr.c
@@ -495,7 +495,7 @@ ext4_xattr_release_block(handle_t *handle, struct inode *inode,
 		error = ext4_handle_dirty_metadata(handle, inode, bh);
 		if (IS_SYNC(inode))
 			ext4_handle_sync(handle);
-		dquot_free_block(inode, 1);
+		dquot_free_block(inode, EXT4_C2B(EXT4_SB(inode->i_sb), 1));
 		ea_bdebug(bh, "refcount now=%d; releasing",
 			  le32_to_cpu(BHDR(bh)->h_refcount));
 	}
@@ -784,7 +784,8 @@ inserted:
 			else {
 				/* The old block is released after updating
 				   the inode. */
-				error = dquot_alloc_block(inode, 1);
+				error = dquot_alloc_block(inode,
+						EXT4_C2B(EXT4_SB(sb), 1));
 				if (error)
 					goto cleanup;
 				error = ext4_journal_get_write_access(handle,
@@ -880,7 +881,7 @@ cleanup:
 	return error;
 
 cleanup_dquot:
-	dquot_free_block(inode, 1);
+	dquot_free_block(inode, EXT4_C2B(EXT4_SB(sb), 1));
 	goto cleanup;
 
 bad_block:
diff --git a/fs/fuse/dir.c b/fs/fuse/dir.c
index bc43832..d48478a 100644
--- a/fs/fuse/dir.c
+++ b/fs/fuse/dir.c
@@ -645,7 +645,14 @@ static int fuse_unlink(struct inode *dir, struct dentry *entry)
 
 		spin_lock(&fc->lock);
 		fi->attr_version = ++fc->attr_version;
-		drop_nlink(inode);
+		/*
+		 * If i_nlink == 0 then unlink doesn't make sense, yet this can
+		 * happen if userspace filesystem is careless.  It would be
+		 * difficult to enforce correct nlink usage so just ignore this
+		 * condition here
+		 */
+		if (inode->i_nlink > 0)
+			drop_nlink(inode);
 		spin_unlock(&fc->lock);
 		fuse_invalidate_attr(inode);
 		fuse_invalidate_attr(dir);
diff --git a/fs/nfsd/nfs4state.c b/fs/nfsd/nfs4state.c
index 537731e..abd785e 100644
--- a/fs/nfsd/nfs4state.c
+++ b/fs/nfsd/nfs4state.c
@@ -1053,6 +1053,8 @@ free_client(struct nfs4_client *clp)
 		put_group_info(clp->cl_cred.cr_group_info);
 	kfree(clp->cl_principal);
 	kfree(clp->cl_name.data);
+	idr_remove_all(&clp->cl_stateids);
+	idr_destroy(&clp->cl_stateids);
 	kfree(clp);
 }
 
diff --git a/fs/ocfs2/aops.c b/fs/ocfs2/aops.c
index 6577432..340bd02 100644
--- a/fs/ocfs2/aops.c
+++ b/fs/ocfs2/aops.c
@@ -593,9 +593,9 @@ static void ocfs2_dio_end_io(struct kiocb *iocb,
 	level = ocfs2_iocb_rw_locked_level(iocb);
 	ocfs2_rw_unlock(inode, level);
 
+	inode_dio_done(inode);
 	if (is_async)
 		aio_complete(iocb, ret, 0);
-	inode_dio_done(inode);
 }
 
 /*
diff --git a/fs/ocfs2/suballoc.c b/fs/ocfs2/suballoc.c
index f169da4..b7e74b5 100644
--- a/fs/ocfs2/suballoc.c
+++ b/fs/ocfs2/suballoc.c
@@ -642,7 +642,7 @@ ocfs2_block_group_alloc_discontig(handle_t *handle,
 	 * cluster groups will be staying in cache for the duration of
 	 * this operation.
 	 */
-	ac->ac_allow_chain_relink = 0;
+	ac->ac_disable_chain_relink = 1;
 
 	/* Claim the first region */
 	status = ocfs2_block_group_claim_bits(osb, handle, ac, min_bits,
@@ -1823,7 +1823,7 @@ static int ocfs2_search_chain(struct ocfs2_alloc_context *ac,
 	 * Do this *after* figuring out how many bits we're taking out
 	 * of our target group.
 	 */
-	if (ac->ac_allow_chain_relink &&
+	if (!ac->ac_disable_chain_relink &&
 	    (prev_group_bh) &&
 	    (ocfs2_block_group_reasonably_empty(bg, res->sr_bits))) {
 		status = ocfs2_relink_block_group(handle, alloc_inode,
@@ -1928,7 +1928,6 @@ static int ocfs2_claim_suballoc_bits(struct ocfs2_alloc_context *ac,
 
 	victim = ocfs2_find_victim_chain(cl);
 	ac->ac_chain = victim;
-	ac->ac_allow_chain_relink = 1;
 
 	status = ocfs2_search_chain(ac, handle, bits_wanted, min_bits,
 				    res, &bits_left);
@@ -1947,7 +1946,7 @@ static int ocfs2_claim_suballoc_bits(struct ocfs2_alloc_context *ac,
 	 * searching each chain in order. Don't allow chain relinking
 	 * because we only calculate enough journal credits for one
 	 * relink per alloc. */
-	ac->ac_allow_chain_relink = 0;
+	ac->ac_disable_chain_relink = 1;
 	for (i = 0; i < le16_to_cpu(cl->cl_next_free_rec); i ++) {
 		if (i == victim)
 			continue;
diff --git a/fs/ocfs2/suballoc.h b/fs/ocfs2/suballoc.h
index b8afabf..a36d0aa 100644
--- a/fs/ocfs2/suballoc.h
+++ b/fs/ocfs2/suballoc.h
@@ -49,7 +49,7 @@ struct ocfs2_alloc_context {
 
 	/* these are used by the chain search */
 	u16    ac_chain;
-	int    ac_allow_chain_relink;
+	int    ac_disable_chain_relink;
 	group_search_t *ac_group_search;
 
 	u64    ac_last_group;
diff --git a/fs/ocfs2/xattr.c b/fs/ocfs2/xattr.c
index 0ba9ea1..2e3ea30 100644
--- a/fs/ocfs2/xattr.c
+++ b/fs/ocfs2/xattr.c
@@ -7189,7 +7189,7 @@ int ocfs2_init_security_and_acl(struct inode *dir,
 	struct buffer_head *dir_bh = NULL;
 
 	ret = ocfs2_init_security_get(inode, dir, qstr, NULL);
-	if (!ret) {
+	if (ret) {
 		mlog_errno(ret);
 		goto leave;
 	}
diff --git a/fs/pstore/platform.c b/fs/pstore/platform.c
index 82c585f..4a66a5c 100644
--- a/fs/pstore/platform.c
+++ b/fs/pstore/platform.c
@@ -88,6 +88,27 @@ static const char *get_reason_str(enum kmsg_dump_reason reason)
 	}
 }
 
+bool pstore_cannot_block_path(enum kmsg_dump_reason reason)
+{
+	/*
+	 * In case of NMI path, pstore shouldn't be blocked
+	 * regardless of reason.
+	 */
+	if (in_nmi())
+		return true;
+
+	switch (reason) {
+	/* In panic case, other cpus are stopped by smp_send_stop(). */
+	case KMSG_DUMP_PANIC:
+	/* Emergency restart shouldn't be blocked by spin lock. */
+	case KMSG_DUMP_EMERG:
+		return true;
+	default:
+		return false;
+	}
+}
+EXPORT_SYMBOL_GPL(pstore_cannot_block_path);
+
 /*
  * callback from kmsg_dump. (s2,l2) has the most recently
  * written bytes, older bytes are in (s1,l1). Save as much
@@ -111,10 +132,12 @@ static void pstore_dump(struct kmsg_dumper *dumper,
 
 	why = get_reason_str(reason);
 
-	if (in_nmi()) {
-		is_locked = spin_trylock(&psinfo->buf_lock);
-		if (!is_locked)
-			pr_err("pstore dump routine blocked in NMI, may corrupt error record\n");
+	if (pstore_cannot_block_path(reason)) {
+		is_locked = spin_trylock_irqsave(&psinfo->buf_lock, flags);
+		if (!is_locked) {
+			pr_err("pstore dump routine blocked in %s path, may corrupt error record\n"
+				       , in_nmi() ? "NMI" : why);
+		}
 	} else
 		spin_lock_irqsave(&psinfo->buf_lock, flags);
 	oopscount++;
@@ -145,9 +168,9 @@ static void pstore_dump(struct kmsg_dumper *dumper,
 		total += l1_cpy + l2_cpy;
 		part++;
 	}
-	if (in_nmi()) {
+	if (pstore_cannot_block_path(reason)) {
 		if (is_locked)
-			spin_unlock(&psinfo->buf_lock);
+			spin_unlock_irqrestore(&psinfo->buf_lock, flags);
 	} else
 		spin_unlock_irqrestore(&psinfo->buf_lock, flags);
 }
diff --git a/include/linux/auto_fs.h b/include/linux/auto_fs.h
index da64e15..6cdabb4 100644
--- a/include/linux/auto_fs.h
+++ b/include/linux/auto_fs.h
@@ -31,25 +31,16 @@
 #define AUTOFS_MIN_PROTO_VERSION	AUTOFS_PROTO_VERSION
 
 /*
- * Architectures where both 32- and 64-bit binaries can be executed
- * on 64-bit kernels need this.  This keeps the structure format
- * uniform, and makes sure the wait_queue_token isn't too big to be
- * passed back down to the kernel.
- *
- * This assumes that on these architectures:
- * mode     32 bit    64 bit
- * -------------------------
- * int      32 bit    32 bit
- * long     32 bit    64 bit
- *
- * If so, 32-bit user-space code should be backwards compatible.
+ * The wait_queue_token (autofs_wqt_t) is part of a structure which is passed
+ * back to the kernel via ioctl from userspace. On architectures where 32- and
+ * 64-bit userspace binaries can be executed it's important that the size of
+ * autofs_wqt_t stays constant between 32- and 64-bit Linux kernels so that we
+ * do not break the binary ABI interface by changing the structure size.
  */
-
-#if defined(__sparc__) || defined(__mips__) || defined(__x86_64__) \
- || defined(__powerpc__) || defined(__s390__)
-typedef unsigned int autofs_wqt_t;
-#else
+#if defined(__ia64__) || defined(__alpha__) /* pure 64bit architectures */
 typedef unsigned long autofs_wqt_t;
+#else
+typedef unsigned int autofs_wqt_t;
 #endif
 
 /* Packet types */
diff --git a/include/linux/pstore.h b/include/linux/pstore.h
index e1461e1..318cca1 100644
--- a/include/linux/pstore.h
+++ b/include/linux/pstore.h
@@ -54,12 +54,18 @@ struct pstore_info {
 
 #ifdef CONFIG_PSTORE
 extern int pstore_register(struct pstore_info *);
+extern bool pstore_cannot_block_path(enum kmsg_dump_reason reason);
 #else
 static inline int
 pstore_register(struct pstore_info *psi)
 {
 	return -ENODEV;
 }
+static inline bool
+pstore_cannot_block_path(enum kmsg_dump_reason reason)
+{
+	return false;
+}
 #endif
 
 #endif /*_LINUX_PSTORE_H*/
diff --git a/include/linux/quota.h b/include/linux/quota.h
index c09fa04..ffd8607 100644
--- a/include/linux/quota.h
+++ b/include/linux/quota.h
@@ -417,6 +417,7 @@ struct quota_module_name {
 #define INIT_QUOTA_MODULE_NAMES {\
 	{QFMT_VFS_OLD, "quota_v1"},\
 	{QFMT_VFS_V0, "quota_v2"},\
+	{QFMT_VFS_V1, "quota_v2"},\
 	{0, NULL}}
 
 #endif /* __KERNEL__ */
diff --git a/kernel/cgroup.c b/kernel/cgroup.c
index a5dccd4..a4c47d1b 100644
--- a/kernel/cgroup.c
+++ b/kernel/cgroup.c
@@ -378,12 +378,20 @@ static void __put_css_set(struct css_set *cg, int taskexit)
 		struct cgroup *cgrp = link->cgrp;
 		list_del(&link->cg_link_list);
 		list_del(&link->cgrp_link_list);
+
+		/*
+		 * We may not be holding cgroup_mutex, and if cgrp->count is
+		 * dropped to 0 the cgroup can be destroyed at any time, hence
+		 * rcu_read_lock is used to keep it alive.
+		 */
+		rcu_read_lock();
 		if (atomic_dec_and_test(&cgrp->count) &&
 		    notify_on_release(cgrp)) {
 			if (taskexit)
 				set_bit(CGRP_RELEASABLE, &cgrp->flags);
 			check_for_release(cgrp);
 		}
+		rcu_read_unlock();
 
 		kfree(link);
 	}
diff --git a/kernel/cpuset.c b/kernel/cpuset.c
index 5fc1570..8fe6f6b6 100644
--- a/kernel/cpuset.c
+++ b/kernel/cpuset.c
@@ -2479,8 +2479,16 @@ void cpuset_print_task_mems_allowed(struct task_struct *tsk)
 
 	dentry = task_cs(tsk)->css.cgroup->dentry;
 	spin_lock(&cpuset_buffer_lock);
-	snprintf(cpuset_name, CPUSET_NAME_LEN,
-		 dentry ? (const char *)dentry->d_name.name : "/");
+
+	if (!dentry) {
+		strcpy(cpuset_name, "/");
+	} else {
+		spin_lock(&dentry->d_lock);
+		strlcpy(cpuset_name, (const char *)dentry->d_name.name,
+			CPUSET_NAME_LEN);
+		spin_unlock(&dentry->d_lock);
+	}
+
 	nodelist_scnprintf(cpuset_nodelist, CPUSET_NODELIST_LEN,
 			   tsk->mems_allowed);
 	printk(KERN_INFO "%s cpuset=%s mems_allowed=%s\n",
diff --git a/kernel/posix-timers.c b/kernel/posix-timers.c
index 69185ae..e885be1 100644
--- a/kernel/posix-timers.c
+++ b/kernel/posix-timers.c
@@ -639,6 +639,13 @@ static struct k_itimer *__lock_timer(timer_t timer_id, unsigned long *flags)
 {
 	struct k_itimer *timr;
 
+	/*
+	 * timer_t could be any type >= int and we want to make sure any
+	 * @timer_id outside positive int range fails lookup.
+	 */
+	if ((unsigned long long)timer_id > INT_MAX)
+		return NULL;
+
 	rcu_read_lock();
 	timr = idr_find(&posix_timers_id, (int)timer_id);
 	if (timr) {
diff --git a/kernel/sysctl_binary.c b/kernel/sysctl_binary.c
index a650694..9f9aa32 100644
--- a/kernel/sysctl_binary.c
+++ b/kernel/sysctl_binary.c
@@ -1194,9 +1194,10 @@ static ssize_t bin_dn_node_address(struct file *file,
 
 		/* Convert the decnet address to binary */
 		result = -EIO;
-		nodep = strchr(buf, '.') + 1;
+		nodep = strchr(buf, '.');
 		if (!nodep)
 			goto out;
+		++nodep;
 
 		area = simple_strtoul(buf, NULL, 10);
 		node = simple_strtoul(nodep, NULL, 10);
diff --git a/kernel/trace/ftrace.c b/kernel/trace/ftrace.c
index 6b194d8..4a86e64 100644
--- a/kernel/trace/ftrace.c
+++ b/kernel/trace/ftrace.c
@@ -3841,37 +3841,51 @@ static void ftrace_init_module(struct module *mod,
 	ftrace_process_locs(mod, start, end);
 }
 
-static int ftrace_module_notify(struct notifier_block *self,
-				unsigned long val, void *data)
+static int ftrace_module_notify_enter(struct notifier_block *self,
+				      unsigned long val, void *data)
 {
 	struct module *mod = data;
 
-	switch (val) {
-	case MODULE_STATE_COMING:
+	if (val == MODULE_STATE_COMING)
 		ftrace_init_module(mod, mod->ftrace_callsites,
 				   mod->ftrace_callsites +
 				   mod->num_ftrace_callsites);
-		break;
-	case MODULE_STATE_GOING:
+	return 0;
+}
+
+static int ftrace_module_notify_exit(struct notifier_block *self,
+				     unsigned long val, void *data)
+{
+	struct module *mod = data;
+
+	if (val == MODULE_STATE_GOING)
 		ftrace_release_mod(mod);
-		break;
-	}
 
 	return 0;
 }
 #else
-static int ftrace_module_notify(struct notifier_block *self,
-				unsigned long val, void *data)
+static int ftrace_module_notify_enter(struct notifier_block *self,
+				      unsigned long val, void *data)
+{
+	return 0;
+}
+static int ftrace_module_notify_exit(struct notifier_block *self,
+				     unsigned long val, void *data)
 {
 	return 0;
 }
 #endif /* CONFIG_MODULES */
 
-struct notifier_block ftrace_module_nb = {
-	.notifier_call = ftrace_module_notify,
+struct notifier_block ftrace_module_enter_nb = {
+	.notifier_call = ftrace_module_notify_enter,
 	.priority = INT_MAX,	/* Run before anything that can use kprobes */
 };
 
+struct notifier_block ftrace_module_exit_nb = {
+	.notifier_call = ftrace_module_notify_exit,
+	.priority = INT_MIN,	/* Run after anything that can remove kprobes */
+};
+
 extern unsigned long __start_mcount_loc[];
 extern unsigned long __stop_mcount_loc[];
 
@@ -3903,9 +3917,13 @@ void __init ftrace_init(void)
 				  __start_mcount_loc,
 				  __stop_mcount_loc);
 
-	ret = register_module_notifier(&ftrace_module_nb);
+	ret = register_module_notifier(&ftrace_module_enter_nb);
+	if (ret)
+		pr_warning("Failed to register trace ftrace module enter notifier\n");
+
+	ret = register_module_notifier(&ftrace_module_exit_nb);
 	if (ret)
-		pr_warning("Failed to register trace ftrace module notifier\n");
+		pr_warning("Failed to register trace ftrace module exit notifier\n");
 
 	set_ftrace_early_filters();
 
diff --git a/lib/idr.c b/lib/idr.c
index 4046e29..e90d2d0 100644
--- a/lib/idr.c
+++ b/lib/idr.c
@@ -625,7 +625,14 @@ void *idr_get_next(struct idr *idp, int *nextidp)
 			return p;
 		}
 
-		id += 1 << n;
+		/*
+		 * Proceed to the next layer at the current level.  Unlike
+		 * idr_for_each(), @id isn't guaranteed to be aligned to
+		 * layer boundary at this point and adding 1 << n may
+		 * incorrectly skip IDs.  Make sure we jump to the
+		 * beginning of the next layer using round_up().
+		 */
+		id = round_up(id + 1, 1 << n);
 		while (n < fls(id)) {
 			n += IDR_BITS;
 			p = *--paa;
diff --git a/net/sunrpc/svc_xprt.c b/net/sunrpc/svc_xprt.c
index fd9b288..aec7dbb 100644
--- a/net/sunrpc/svc_xprt.c
+++ b/net/sunrpc/svc_xprt.c
@@ -817,7 +817,6 @@ static void svc_age_temp_xprts(unsigned long closure)
 	struct svc_serv *serv = (struct svc_serv *)closure;
 	struct svc_xprt *xprt;
 	struct list_head *le, *next;
-	LIST_HEAD(to_be_aged);
 
 	dprintk("svc_age_temp_xprts\n");
 
@@ -838,25 +837,15 @@ static void svc_age_temp_xprts(unsigned long closure)
 		if (atomic_read(&xprt->xpt_ref.refcount) > 1 ||
 		    test_bit(XPT_BUSY, &xprt->xpt_flags))
 			continue;
-		svc_xprt_get(xprt);
-		list_move(le, &to_be_aged);
+		list_del_init(le);
 		set_bit(XPT_CLOSE, &xprt->xpt_flags);
 		set_bit(XPT_DETACHED, &xprt->xpt_flags);
-	}
-	spin_unlock_bh(&serv->sv_lock);
-
-	while (!list_empty(&to_be_aged)) {
-		le = to_be_aged.next;
-		/* fiddling the xpt_list node is safe 'cos we're XPT_DETACHED */
-		list_del_init(le);
-		xprt = list_entry(le, struct svc_xprt, xpt_list);
-
 		dprintk("queuing xprt %p for closing\n", xprt);
 
 		/* a thread will dequeue and close it soon */
 		svc_xprt_enqueue(xprt);
-		svc_xprt_put(xprt);
 	}
+	spin_unlock_bh(&serv->sv_lock);
 
 	mod_timer(&serv->sv_temptimer, jiffies + svc_conn_age_period * HZ);
 }
diff --git a/sound/pci/hda/patch_hdmi.c b/sound/pci/hda/patch_hdmi.c
index 02a6e3f..fa2ce0c 100644
--- a/sound/pci/hda/patch_hdmi.c
+++ b/sound/pci/hda/patch_hdmi.c
@@ -1244,6 +1244,9 @@ static int generic_hdmi_build_jack(struct hda_codec *codec, int pin_idx)
 
 	if (pcmdev > 0)
 		sprintf(hdmi_str + strlen(hdmi_str), ",pcm=%d", pcmdev);
+	if (!is_jack_detectable(codec, per_pin->pin_nid))
+		strncat(hdmi_str, " Phantom",
+			sizeof(hdmi_str) - strlen(hdmi_str) - 1);
 
 	return snd_hda_jack_add_kctl(codec, per_pin->pin_nid, hdmi_str, 0);
 }
diff --git a/tools/perf/Makefile b/tools/perf/Makefile
index c3dd3d4..2db7ba0 100644
--- a/tools/perf/Makefile
+++ b/tools/perf/Makefile
@@ -241,13 +241,13 @@ $(OUTPUT)util/parse-events-flex.c: util/parse-events.l
 	$(QUIET_FLEX)$(FLEX) --header-file=$(OUTPUT)util/parse-events-flex.h -t util/parse-events.l > $(OUTPUT)util/parse-events-flex.c
 
 $(OUTPUT)util/parse-events-bison.c: util/parse-events.y
-	$(QUIET_BISON)$(BISON) -v util/parse-events.y -d -o $(OUTPUT)util/parse-events-bison.c
+	$(QUIET_BISON)$(BISON) -v util/parse-events.y -d -o $(OUTPUT)util/parse-events-bison.c -p parse_events_
 
 $(OUTPUT)util/pmu-flex.c: util/pmu.l
 	$(QUIET_FLEX)$(FLEX) --header-file=$(OUTPUT)util/pmu-flex.h -t util/pmu.l > $(OUTPUT)util/pmu-flex.c
 
 $(OUTPUT)util/pmu-bison.c: util/pmu.y
-	$(QUIET_BISON)$(BISON) -v util/pmu.y -d -o $(OUTPUT)util/pmu-bison.c
+	$(QUIET_BISON)$(BISON) -v util/pmu.y -d -o $(OUTPUT)util/pmu-bison.c -p perf_pmu_
 
 $(OUTPUT)util/parse-events.o: $(OUTPUT)util/parse-events-flex.c $(OUTPUT)util/parse-events-bison.c
 $(OUTPUT)util/pmu.o: $(OUTPUT)util/pmu-flex.c $(OUTPUT)util/pmu-bison.c
diff --git a/tools/perf/util/parse-events.y b/tools/perf/util/parse-events.y
index d9637da..3f35ea3 100644
--- a/tools/perf/util/parse-events.y
+++ b/tools/perf/util/parse-events.y
@@ -1,5 +1,4 @@
 
-%name-prefix "parse_events_"
 %parse-param {struct list_head *list_all}
 %parse-param {struct list_head *list_event}
 %parse-param {int *idx}
diff --git a/tools/perf/util/pmu.y b/tools/perf/util/pmu.y
index 20ea77e..522943f 100644
--- a/tools/perf/util/pmu.y
+++ b/tools/perf/util/pmu.y
@@ -1,5 +1,4 @@
 
-%name-prefix "perf_pmu_"
 %parse-param {struct list_head *format}
 %parse-param {char *name}