Merge branch 'rt/atomic-locks' into rt/base

51 files changed, 420 insertions, 383 deletions

diff --git a/arch/sparc/configs/sparc32_defconfig b/arch/sparc/configs/sparc32_defconfig
index 8bcd27af724b..a0f62a808edb 100644
--- a/arch/sparc/configs/sparc32_defconfig
+++ b/arch/sparc/configs/sparc32_defconfig
@@ -1,7 +1,7 @@
 #
 # Automatically generated make config: don't edit
-# Linux kernel version: 2.6.30-rc2
-# Fri Apr 17 04:04:46 2009
+# Linux kernel version: 2.6.31-rc1
+# Tue Aug 18 23:45:52 2009
 #
 # CONFIG_64BIT is not set
 CONFIG_SPARC=y
@@ -17,6 +17,7 @@ CONFIG_GENERIC_ISA_DMA=y
 CONFIG_ARCH_NO_VIRT_TO_BUS=y
 CONFIG_OF=y
 CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config"
+CONFIG_CONSTRUCTORS=y
 
 #
 # General setup
@@ -74,7 +75,6 @@ CONFIG_SYSCTL_SYSCALL=y
 CONFIG_KALLSYMS=y
 # CONFIG_KALLSYMS_ALL is not set
 # CONFIG_KALLSYMS_EXTRA_PASS is not set
-# CONFIG_STRIP_ASM_SYMS is not set
 CONFIG_HOTPLUG=y
 CONFIG_PRINTK=y
 CONFIG_BUG=y
@@ -87,8 +87,13 @@ CONFIG_TIMERFD=y
 CONFIG_EVENTFD=y
 CONFIG_SHMEM=y
 CONFIG_AIO=y
+
+#
+# Performance Counters
+#
 CONFIG_VM_EVENT_COUNTERS=y
 CONFIG_PCI_QUIRKS=y
+# CONFIG_STRIP_ASM_SYMS is not set
 CONFIG_COMPAT_BRK=y
 CONFIG_SLAB=y
 # CONFIG_SLUB is not set
@@ -97,6 +102,10 @@ CONFIG_SLAB=y
 # CONFIG_MARKERS is not set
 CONFIG_HAVE_OPROFILE=y
 CONFIG_HAVE_ARCH_TRACEHOOK=y
+
+#
+# GCOV-based kernel profiling
+#
 # CONFIG_SLOW_WORK is not set
 # CONFIG_HAVE_GENERIC_DMA_COHERENT is not set
 CONFIG_SLABINFO=y
@@ -109,7 +118,7 @@ CONFIG_MODULE_UNLOAD=y
 # CONFIG_MODVERSIONS is not set
 # CONFIG_MODULE_SRCVERSION_ALL is not set
 CONFIG_BLOCK=y
-# CONFIG_LBD is not set
+CONFIG_LBDAF=y
 # CONFIG_BLK_DEV_BSG is not set
 # CONFIG_BLK_DEV_INTEGRITY is not set
 
@@ -154,9 +163,9 @@ CONFIG_SPLIT_PTLOCK_CPUS=4
 # CONFIG_PHYS_ADDR_T_64BIT is not set
 CONFIG_ZONE_DMA_FLAG=1
 CONFIG_BOUNCE=y
-CONFIG_UNEVICTABLE_LRU=y
 CONFIG_HAVE_MLOCK=y
 CONFIG_HAVE_MLOCKED_PAGE_BIT=y
+CONFIG_DEFAULT_MMAP_MIN_ADDR=4096
 CONFIG_SUN_PM=y
 # CONFIG_SPARC_LED is not set
 CONFIG_SERIAL_CONSOLE=y
@@ -264,6 +273,7 @@ CONFIG_IPV6_TUNNEL=m
 # CONFIG_ECONET is not set
 # CONFIG_WAN_ROUTER is not set
 # CONFIG_PHONET is not set
+# CONFIG_IEEE802154 is not set
 # CONFIG_NET_SCHED is not set
 # CONFIG_DCB is not set
 
@@ -281,7 +291,11 @@ CONFIG_WIRELESS=y
 CONFIG_WIRELESS_OLD_REGULATORY=y
 # CONFIG_WIRELESS_EXT is not set
 # CONFIG_LIB80211 is not set
-# CONFIG_MAC80211 is not set
+
+#
+# CFG80211 needs to be enabled for MAC80211
+#
+CONFIG_MAC80211_DEFAULT_PS_VALUE=0
 # CONFIG_WIMAX is not set
 # CONFIG_RFKILL is not set
 # CONFIG_NET_9P is not set
@@ -335,6 +349,7 @@ CONFIG_MISC_DEVICES=y
 # EEPROM support
 #
 # CONFIG_EEPROM_93CX6 is not set
+# CONFIG_CB710_CORE is not set
 CONFIG_HAVE_IDE=y
 # CONFIG_IDE is not set
 
@@ -358,10 +373,6 @@ CONFIG_BLK_DEV_SR=m
 # CONFIG_BLK_DEV_SR_VENDOR is not set
 CONFIG_CHR_DEV_SG=m
 # CONFIG_CHR_DEV_SCH is not set
-
-#
-# Some SCSI devices (e.g. CD jukebox) support multiple LUNs
-#
 # CONFIG_SCSI_MULTI_LUN is not set
 # CONFIG_SCSI_CONSTANTS is not set
 # CONFIG_SCSI_LOGGING is not set
@@ -379,6 +390,7 @@ CONFIG_SCSI_SPI_ATTRS=y
 CONFIG_SCSI_LOWLEVEL=y
 # CONFIG_ISCSI_TCP is not set
 # CONFIG_SCSI_CXGB3_ISCSI is not set
+# CONFIG_SCSI_BNX2_ISCSI is not set
 # CONFIG_BLK_DEV_3W_XXXX_RAID is not set
 # CONFIG_SCSI_3W_9XXX is not set
 # CONFIG_SCSI_ACARD is not set
@@ -387,6 +399,7 @@ CONFIG_SCSI_LOWLEVEL=y
 # CONFIG_SCSI_AIC7XXX_OLD is not set
 # CONFIG_SCSI_AIC79XX is not set
 # CONFIG_SCSI_AIC94XX is not set
+# CONFIG_SCSI_MVSAS is not set
 # CONFIG_SCSI_ARCMSR is not set
 # CONFIG_MEGARAID_NEWGEN is not set
 # CONFIG_MEGARAID_LEGACY is not set
@@ -401,7 +414,6 @@ CONFIG_SCSI_LOWLEVEL=y
 # CONFIG_SCSI_IPS is not set
 # CONFIG_SCSI_INITIO is not set
 # CONFIG_SCSI_INIA100 is not set
-# CONFIG_SCSI_MVSAS is not set
 # CONFIG_SCSI_STEX is not set
 # CONFIG_SCSI_SYM53C8XX_2 is not set
 # CONFIG_SCSI_QLOGIC_1280 is not set
@@ -426,13 +438,16 @@ CONFIG_SCSI_SUNESP=y
 #
 
 #
-# Enable only one of the two stacks, unless you know what you are doing
+# You can enable one or both FireWire driver stacks.
+#
+
+#
+# See the help texts for more information.
 #
 # CONFIG_FIREWIRE is not set
 # CONFIG_IEEE1394 is not set
 # CONFIG_I2O is not set
 CONFIG_NETDEVICES=y
-CONFIG_COMPAT_NET_DEV_OPS=y
 CONFIG_DUMMY=m
 # CONFIG_BONDING is not set
 # CONFIG_MACVLAN is not set
@@ -463,6 +478,7 @@ CONFIG_SUNQE=m
 # CONFIG_IBM_NEW_EMAC_MAL_COMMON_ERR is not set
 # CONFIG_NET_PCI is not set
 # CONFIG_B44 is not set
+# CONFIG_KS8842 is not set
 # CONFIG_ATL2 is not set
 CONFIG_NETDEV_1000=y
 # CONFIG_ACENIC is not set
@@ -482,6 +498,7 @@ CONFIG_NETDEV_1000=y
 # CONFIG_VIA_VELOCITY is not set
 # CONFIG_TIGON3 is not set
 # CONFIG_BNX2 is not set
+# CONFIG_CNIC is not set
 # CONFIG_QLA3XXX is not set
 # CONFIG_ATL1 is not set
 # CONFIG_ATL1E is not set
@@ -629,6 +646,11 @@ CONFIG_HW_RANDOM=m
 CONFIG_DEVPORT=y
 # CONFIG_I2C is not set
 # CONFIG_SPI is not set
+
+#
+# PPS support
+#
+# CONFIG_PPS is not set
 CONFIG_ARCH_WANT_OPTIONAL_GPIOLIB=y
 # CONFIG_GPIOLIB is not set
 # CONFIG_W1 is not set
@@ -668,22 +690,7 @@ CONFIG_SSB_POSSIBLE=y
 # CONFIG_HTC_PASIC3 is not set
 # CONFIG_MFD_TMIO is not set
 # CONFIG_REGULATOR is not set
-
-#
-# Multimedia devices
-#
-
-#
-# Multimedia core support
-#
-# CONFIG_VIDEO_DEV is not set
-# CONFIG_DVB_CORE is not set
-# CONFIG_VIDEO_MEDIA is not set
-
-#
-# Multimedia drivers
-#
-# CONFIG_DAB is not set
+# CONFIG_MEDIA_SUPPORT is not set
 
 #
 # Graphics support
@@ -776,6 +783,10 @@ CONFIG_RTC_DRV_M48T59=y
 # CONFIG_DMADEVICES is not set
 # CONFIG_AUXDISPLAY is not set
 # CONFIG_UIO is not set
+
+#
+# TI VLYNQ
+#
 # CONFIG_STAGING is not set
 
 #
@@ -799,10 +810,12 @@ CONFIG_FS_MBCACHE=y
 # CONFIG_REISERFS_FS is not set
 # CONFIG_JFS_FS is not set
 CONFIG_FS_POSIX_ACL=y
-CONFIG_FILE_LOCKING=y
 # CONFIG_XFS_FS is not set
+# CONFIG_GFS2_FS is not set
 # CONFIG_OCFS2_FS is not set
 # CONFIG_BTRFS_FS is not set
+CONFIG_FILE_LOCKING=y
+CONFIG_FSNOTIFY=y
 CONFIG_DNOTIFY=y
 CONFIG_INOTIFY=y
 CONFIG_INOTIFY_USER=y
@@ -985,6 +998,7 @@ CONFIG_KGDB=y
 CONFIG_KGDB_SERIAL_CONSOLE=y
 CONFIG_KGDB_TESTS=y
 # CONFIG_KGDB_TESTS_ON_BOOT is not set
+# CONFIG_KMEMCHECK is not set
 # CONFIG_DEBUG_STACK_USAGE is not set
 # CONFIG_STACK_DEBUG is not set
 
diff --git a/arch/sparc/configs/sparc64_defconfig b/arch/sparc/configs/sparc64_defconfig
index 0123a4c596ce..fdddf7a6f725 100644
--- a/arch/sparc/configs/sparc64_defconfig
+++ b/arch/sparc/configs/sparc64_defconfig
@@ -1,7 +1,7 @@
 #
 # Automatically generated make config: don't edit
-# Linux kernel version: 2.6.30
-# Tue Jun 16 04:59:36 2009
+# Linux kernel version: 2.6.31-rc1
+# Tue Aug 18 23:56:02 2009
 #
 CONFIG_64BIT=y
 CONFIG_SPARC=y
@@ -26,6 +26,7 @@ CONFIG_ARCH_NO_VIRT_TO_BUS=y
 CONFIG_OF=y
 CONFIG_ARCH_SUPPORTS_DEBUG_PAGEALLOC=y
 CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config"
+CONFIG_CONSTRUCTORS=y
 
 #
 # General setup
@@ -119,6 +120,11 @@ CONFIG_HAVE_KPROBES=y
 CONFIG_HAVE_KRETPROBES=y
 CONFIG_HAVE_ARCH_TRACEHOOK=y
 CONFIG_USE_GENERIC_SMP_HELPERS=y
+
+#
+# GCOV-based kernel profiling
+#
+# CONFIG_GCOV_KERNEL is not set
 # CONFIG_SLOW_WORK is not set
 # CONFIG_HAVE_GENERIC_DMA_COHERENT is not set
 CONFIG_SLABINFO=y
@@ -204,7 +210,6 @@ CONFIG_MIGRATION=y
 CONFIG_PHYS_ADDR_T_64BIT=y
 CONFIG_ZONE_DMA_FLAG=0
 CONFIG_NR_QUICK=1
-CONFIG_UNEVICTABLE_LRU=y
 CONFIG_HAVE_MLOCK=y
 CONFIG_HAVE_MLOCKED_PAGE_BIT=y
 CONFIG_DEFAULT_MMAP_MIN_ADDR=8192
@@ -410,6 +415,7 @@ CONFIG_MISC_DEVICES=y
 #
 # CONFIG_EEPROM_AT24 is not set
 # CONFIG_EEPROM_LEGACY is not set
+# CONFIG_EEPROM_MAX6875 is not set
 # CONFIG_EEPROM_93CX6 is not set
 # CONFIG_CB710_CORE is not set
 CONFIG_HAVE_IDE=y
@@ -562,6 +568,7 @@ CONFIG_BLK_DEV_DM=m
 CONFIG_DM_CRYPT=m
 CONFIG_DM_SNAPSHOT=m
 CONFIG_DM_MIRROR=m
+# CONFIG_DM_LOG_USERSPACE is not set
 CONFIG_DM_ZERO=m
 # CONFIG_DM_MULTIPATH is not set
 # CONFIG_DM_DELAY is not set
@@ -573,7 +580,11 @@ CONFIG_DM_ZERO=m
 #
 
 #
-# Enable only one of the two stacks, unless you know what you are doing
+# You can enable one or both FireWire driver stacks.
+#
+
+#
+# See the help texts for more information.
 #
 # CONFIG_FIREWIRE is not set
 # CONFIG_IEEE1394 is not set
@@ -667,6 +678,7 @@ CONFIG_E1000E=m
 # CONFIG_VIA_VELOCITY is not set
 CONFIG_TIGON3=m
 CONFIG_BNX2=m
+# CONFIG_CNIC is not set
 # CONFIG_QLA3XXX is not set
 # CONFIG_ATL1 is not set
 # CONFIG_ATL1E is not set
@@ -773,6 +785,7 @@ CONFIG_MOUSE_SERIAL=y
 # CONFIG_MOUSE_APPLETOUCH is not set
 # CONFIG_MOUSE_BCM5974 is not set
 # CONFIG_MOUSE_VSXXXAA is not set
+# CONFIG_MOUSE_SYNAPTICS_I2C is not set
 # CONFIG_INPUT_JOYSTICK is not set
 # CONFIG_INPUT_TABLET is not set
 # CONFIG_INPUT_TOUCHSCREEN is not set
@@ -870,6 +883,7 @@ CONFIG_I2C_ALGOBIT=y
 #
 # I2C system bus drivers (mostly embedded / system-on-chip)
 #
+# CONFIG_I2C_DESIGNWARE is not set
 # CONFIG_I2C_OCORES is not set
 # CONFIG_I2C_SIMTEC is not set
 
@@ -898,13 +912,17 @@ CONFIG_I2C_ALGOBIT=y
 # CONFIG_SENSORS_PCF8574 is not set
 # CONFIG_PCF8575 is not set
 # CONFIG_SENSORS_PCA9539 is not set
-# CONFIG_SENSORS_MAX6875 is not set
 # CONFIG_SENSORS_TSL2550 is not set
 # CONFIG_I2C_DEBUG_CORE is not set
 # CONFIG_I2C_DEBUG_ALGO is not set
 # CONFIG_I2C_DEBUG_BUS is not set
 # CONFIG_I2C_DEBUG_CHIP is not set
 # CONFIG_SPI is not set
+
+#
+# PPS support
+#
+# CONFIG_PPS is not set
 CONFIG_ARCH_WANT_OPTIONAL_GPIOLIB=y
 # CONFIG_GPIOLIB is not set
 # CONFIG_W1 is not set
@@ -959,6 +977,7 @@ CONFIG_HWMON=y
 # CONFIG_SENSORS_SMSC47B397 is not set
 # CONFIG_SENSORS_ADS7828 is not set
 # CONFIG_SENSORS_THMC50 is not set
+# CONFIG_SENSORS_TMP401 is not set
 # CONFIG_SENSORS_VIA686A is not set
 # CONFIG_SENSORS_VT1211 is not set
 # CONFIG_SENSORS_VT8231 is not set
@@ -994,23 +1013,9 @@ CONFIG_SSB_POSSIBLE=y
 # CONFIG_MFD_WM8400 is not set
 # CONFIG_MFD_WM8350_I2C is not set
 # CONFIG_MFD_PCF50633 is not set
+# CONFIG_AB3100_CORE is not set
 # CONFIG_REGULATOR is not set
-
-#
-# Multimedia devices
-#
-
-#
-# Multimedia core support
-#
-# CONFIG_VIDEO_DEV is not set
-# CONFIG_DVB_CORE is not set
-# CONFIG_VIDEO_MEDIA is not set
-
-#
-# Multimedia drivers
-#
-# CONFIG_DAB is not set
+# CONFIG_MEDIA_SUPPORT is not set
 
 #
 # Graphics support
@@ -1284,7 +1289,6 @@ CONFIG_USB=y
 #
 # Miscellaneous USB options
 #
-CONFIG_USB_DEVICEFS=y
 # CONFIG_USB_DEVICE_CLASS is not set
 # CONFIG_USB_DYNAMIC_MINORS is not set
 # CONFIG_USB_OTG is not set
@@ -1296,6 +1300,7 @@ CONFIG_USB_DEVICEFS=y
 # USB Host Controller Drivers
 #
 # CONFIG_USB_C67X00_HCD is not set
+# CONFIG_USB_XHCI_HCD is not set
 CONFIG_USB_EHCI_HCD=m
 # CONFIG_USB_EHCI_ROOT_HUB_TT is not set
 # CONFIG_USB_EHCI_TT_NEWSCHED is not set
@@ -1374,7 +1379,6 @@ CONFIG_USB_STORAGE=m
 # CONFIG_USB_LD is not set
 # CONFIG_USB_TRANCEVIBRATOR is not set
 # CONFIG_USB_IOWARRIOR is not set
-# CONFIG_USB_TEST is not set
 # CONFIG_USB_ISIGHTFW is not set
 # CONFIG_USB_VST is not set
 # CONFIG_USB_GADGET is not set
@@ -1420,6 +1424,7 @@ CONFIG_RTC_INTF_DEV=y
 # CONFIG_RTC_DRV_S35390A is not set
 # CONFIG_RTC_DRV_FM3130 is not set
 # CONFIG_RTC_DRV_RX8581 is not set
+# CONFIG_RTC_DRV_RX8025 is not set
 
 #
 # SPI RTC drivers
@@ -1448,6 +1453,10 @@ CONFIG_RTC_DRV_STARFIRE=y
 # CONFIG_DMADEVICES is not set
 # CONFIG_AUXDISPLAY is not set
 # CONFIG_UIO is not set
+
+#
+# TI VLYNQ
+#
 # CONFIG_STAGING is not set
 
 #
@@ -1480,11 +1489,11 @@ CONFIG_FS_MBCACHE=y
 # CONFIG_REISERFS_FS is not set
 # CONFIG_JFS_FS is not set
 CONFIG_FS_POSIX_ACL=y
-CONFIG_FILE_LOCKING=y
 # CONFIG_XFS_FS is not set
 # CONFIG_GFS2_FS is not set
 # CONFIG_OCFS2_FS is not set
 # CONFIG_BTRFS_FS is not set
+CONFIG_FILE_LOCKING=y
 CONFIG_FSNOTIFY=y
 CONFIG_DNOTIFY=y
 CONFIG_INOTIFY=y
@@ -1560,7 +1569,7 @@ CONFIG_NETWORK_FILESYSTEMS=y
 # CONFIG_PARTITION_ADVANCED is not set
 CONFIG_MSDOS_PARTITION=y
 CONFIG_SUN_PARTITION=y
-CONFIG_NLS=m
+CONFIG_NLS=y
 CONFIG_NLS_DEFAULT="iso8859-1"
 # CONFIG_NLS_CODEPAGE_437 is not set
 # CONFIG_NLS_CODEPAGE_737 is not set
diff --git a/arch/sparc/include/asm/pgtable_64.h b/arch/sparc/include/asm/pgtable_64.h
index b049abf9902f..0ff92fa22064 100644
--- a/arch/sparc/include/asm/pgtable_64.h
+++ b/arch/sparc/include/asm/pgtable_64.h
@@ -726,11 +726,17 @@ extern unsigned long pte_file(pte_t);
 extern pte_t pgoff_to_pte(unsigned long);
 #define PTE_FILE_MAX_BITS	(64UL - PAGE_SHIFT - 1UL)
 
-extern unsigned long *sparc64_valid_addr_bitmap;
+extern unsigned long sparc64_valid_addr_bitmap[];
 
 /* Needs to be defined here and not in linux/mm.h, as it is arch dependent */
-#define kern_addr_valid(addr)	\
-	(test_bit(__pa((unsigned long)(addr))>>22, sparc64_valid_addr_bitmap))
+static inline bool kern_addr_valid(unsigned long addr)
+{
+	unsigned long paddr = __pa(addr);
+
+	if ((paddr >> 41UL) != 0UL)
+		return false;
+	return test_bit(paddr >> 22, sparc64_valid_addr_bitmap);
+}
 
 extern int page_in_phys_avail(unsigned long paddr);
 
diff --git a/arch/sparc/kernel/ktlb.S b/arch/sparc/kernel/ktlb.S
index cef8defcd7a9..3ea6e8cde8c5 100644
--- a/arch/sparc/kernel/ktlb.S
+++ b/arch/sparc/kernel/ktlb.S
@@ -151,12 +151,46 @@ kvmap_dtlb_4v:
 	 * Must preserve %g1 and %g6 (TAG).
 	 */
 kvmap_dtlb_tsb4m_miss:
-	sethi		%hi(kpte_linear_bitmap), %g2
-	or		%g2, %lo(kpte_linear_bitmap), %g2
+	/* Clear the PAGE_OFFSET top virtual bits, shift
+	 * down to get PFN, and make sure PFN is in range.
+	 */
+	sllx		%g4, 21, %g5
 
-	/* Clear the PAGE_OFFSET top virtual bits, then shift
-	 * down to get a 256MB physical address index.
+	/* Check to see if we know about valid memory at the 4MB
+	 * chunk this physical address will reside within.
 	 */
+	srlx		%g5, 21 + 41, %g2
+	brnz,pn		%g2, kvmap_dtlb_longpath
+	 nop
+
+	/* This unconditional branch and delay-slot nop gets patched
+	 * by the sethi sequence once the bitmap is properly setup.
+	 */
+	.globl		valid_addr_bitmap_insn
+valid_addr_bitmap_insn:
+	ba,pt		%xcc, 2f
+	 nop
+	.subsection	2
+	.globl		valid_addr_bitmap_patch
+valid_addr_bitmap_patch:
+	sethi		%hi(sparc64_valid_addr_bitmap), %g7
+	or		%g7, %lo(sparc64_valid_addr_bitmap), %g7
+	.previous
+
+	srlx		%g5, 21 + 22, %g2
+	srlx		%g2, 6, %g5
+	and		%g2, 63, %g2
+	sllx		%g5, 3, %g5
+	ldx		[%g7 + %g5], %g5
+	mov		1, %g7
+	sllx		%g7, %g2, %g7
+	andcc		%g5, %g7, %g0
+	be,pn		%xcc, kvmap_dtlb_longpath
+
+2:	 sethi		%hi(kpte_linear_bitmap), %g2
+	or		%g2, %lo(kpte_linear_bitmap), %g2
+
+	/* Get the 256MB physical address index. */
 	sllx		%g4, 21, %g5
 	mov		1, %g7
 	srlx		%g5, 21 + 28, %g5
diff --git a/arch/sparc/kernel/sun4d_smp.c b/arch/sparc/kernel/sun4d_smp.c
index 54fb02468f0d..68791cad7b74 100644
--- a/arch/sparc/kernel/sun4d_smp.c
+++ b/arch/sparc/kernel/sun4d_smp.c
@@ -162,9 +162,6 @@ extern void cpu_panic(void);
  */
  
 extern struct linux_prom_registers smp_penguin_ctable;
-extern unsigned long trapbase_cpu1[];
-extern unsigned long trapbase_cpu2[];
-extern unsigned long trapbase_cpu3[];
 
 void __init smp4d_boot_cpus(void)
 {
@@ -235,25 +232,6 @@ void __init smp4d_smp_done(void)
 	*prev = first;
 	local_flush_cache_all();
 
-	/* Free unneeded trap tables */
-	ClearPageReserved(virt_to_page(trapbase_cpu1));
-	init_page_count(virt_to_page(trapbase_cpu1));
-	free_page((unsigned long)trapbase_cpu1);
-	totalram_pages++;
-	num_physpages++;
-
-	ClearPageReserved(virt_to_page(trapbase_cpu2));
-	init_page_count(virt_to_page(trapbase_cpu2));
-	free_page((unsigned long)trapbase_cpu2);
-	totalram_pages++;
-	num_physpages++;
-
-	ClearPageReserved(virt_to_page(trapbase_cpu3));
-	init_page_count(virt_to_page(trapbase_cpu3));
-	free_page((unsigned long)trapbase_cpu3);
-	totalram_pages++;
-	num_physpages++;
-
 	/* Ok, they are spinning and ready to go. */
 	smp_processors_ready = 1;
 	sun4d_distribute_irqs();
diff --git a/arch/sparc/kernel/sun4m_smp.c b/arch/sparc/kernel/sun4m_smp.c
index 960b113d0006..762d6eedd944 100644
--- a/arch/sparc/kernel/sun4m_smp.c
+++ b/arch/sparc/kernel/sun4m_smp.c
@@ -121,9 +121,6 @@ void __cpuinit smp4m_callin(void)
  */
  
 extern struct linux_prom_registers smp_penguin_ctable;
-extern unsigned long trapbase_cpu1[];
-extern unsigned long trapbase_cpu2[];
-extern unsigned long trapbase_cpu3[];
 
 void __init smp4m_boot_cpus(void)
 {
@@ -193,29 +190,6 @@ void __init smp4m_smp_done(void)
 	*prev = first;
 	local_flush_cache_all();
 
-	/* Free unneeded trap tables */
-	if (!cpu_isset(1, cpu_present_map)) {
-		ClearPageReserved(virt_to_page(trapbase_cpu1));
-		init_page_count(virt_to_page(trapbase_cpu1));
-		free_page((unsigned long)trapbase_cpu1);
-		totalram_pages++;
-		num_physpages++;
-	}
-	if (!cpu_isset(2, cpu_present_map)) {
-		ClearPageReserved(virt_to_page(trapbase_cpu2));
-		init_page_count(virt_to_page(trapbase_cpu2));
-		free_page((unsigned long)trapbase_cpu2);
-		totalram_pages++;
-		num_physpages++;
-	}
-	if (!cpu_isset(3, cpu_present_map)) {
-		ClearPageReserved(virt_to_page(trapbase_cpu3));
-		init_page_count(virt_to_page(trapbase_cpu3));
-		free_page((unsigned long)trapbase_cpu3);
-		totalram_pages++;
-		num_physpages++;
-	}
-
 	/* Ok, they are spinning and ready to go. */
 }
 
diff --git a/arch/sparc/kernel/sys32.S b/arch/sparc/kernel/sys32.S
index f061c4dda9ef..aed94869ad6a 100644
--- a/arch/sparc/kernel/sys32.S
+++ b/arch/sparc/kernel/sys32.S
@@ -134,10 +134,12 @@ SIGN1(sys32_getpeername, sys_getpeername, %o0)
 SIGN1(sys32_getsockname, sys_getsockname, %o0)
 SIGN2(sys32_ioprio_get, sys_ioprio_get, %o0, %o1)
 SIGN3(sys32_ioprio_set, sys_ioprio_set, %o0, %o1, %o2)
-SIGN2(sys32_splice, sys_splice, %o0, %o1)
+SIGN2(sys32_splice, sys_splice, %o0, %o2)
 SIGN2(sys32_sync_file_range, compat_sync_file_range, %o0, %o5)
 SIGN2(sys32_tee, sys_tee, %o0, %o1)
 SIGN1(sys32_vmsplice, compat_sys_vmsplice, %o0)
+SIGN1(sys32_truncate, sys_truncate, %o1)
+SIGN1(sys32_ftruncate, sys_ftruncate, %o1)
 
 	.globl		sys32_mmap2
 sys32_mmap2:
diff --git a/arch/sparc/kernel/systbls_64.S b/arch/sparc/kernel/systbls_64.S
index 6b3ee88e253c..2ee7250ba7ae 100644
--- a/arch/sparc/kernel/systbls_64.S
+++ b/arch/sparc/kernel/systbls_64.S
@@ -43,8 +43,8 @@ sys_call_table32:
 /*110*/	.word sys_setresgid, sys_getresgid, sys_setregid, sys_nis_syscall, sys_nis_syscall
 	.word sys32_getgroups, compat_sys_gettimeofday, sys32_getrusage, sys_nis_syscall, sys_getcwd
 /*120*/	.word compat_sys_readv, compat_sys_writev, compat_sys_settimeofday, sys_fchown16, sys_fchmod
-	.word sys_nis_syscall, sys_setreuid16, sys_setregid16, sys_rename, sys_truncate
-/*130*/	.word sys_ftruncate, sys_flock, compat_sys_lstat64, sys_nis_syscall, sys_nis_syscall
+	.word sys_nis_syscall, sys_setreuid16, sys_setregid16, sys_rename, sys32_truncate
+/*130*/	.word sys32_ftruncate, sys_flock, compat_sys_lstat64, sys_nis_syscall, sys_nis_syscall
 	.word sys_nis_syscall, sys32_mkdir, sys_rmdir, compat_sys_utimes, compat_sys_stat64
 /*140*/	.word sys32_sendfile64, sys_nis_syscall, sys32_futex, sys_gettid, compat_sys_getrlimit
 	.word compat_sys_setrlimit, sys_pivot_root, sys32_prctl, sys_pciconfig_read, sys_pciconfig_write
diff --git a/arch/sparc/mm/fault_32.c b/arch/sparc/mm/fault_32.c
index a5e30c642ee3..b99f81c4906f 100644
--- a/arch/sparc/mm/fault_32.c
+++ b/arch/sparc/mm/fault_32.c
@@ -319,9 +319,10 @@ no_context:
  */
 out_of_memory:
 	up_read(&mm->mmap_sem);
-	printk("VM: killing process %s\n", tsk->comm);
-	if (from_user)
-		do_group_exit(SIGKILL);
+	if (from_user) {
+		pagefault_out_of_memory();
+		return;
+	}
 	goto no_context;
 
 do_sigbus:
diff --git a/arch/sparc/mm/fault_64.c b/arch/sparc/mm/fault_64.c
index e5620b27c8bf..43b0da96a4fb 100644
--- a/arch/sparc/mm/fault_64.c
+++ b/arch/sparc/mm/fault_64.c
@@ -447,9 +447,10 @@ handle_kernel_fault:
 out_of_memory:
 	insn = get_fault_insn(regs, insn);
 	up_read(&mm->mmap_sem);
-	printk("VM: killing process %s\n", current->comm);
-	if (!(regs->tstate & TSTATE_PRIV))
-		do_group_exit(SIGKILL);
+	if (!(regs->tstate & TSTATE_PRIV)) {
+		pagefault_out_of_memory();
+		return;
+	}
 	goto handle_kernel_fault;
 
 intr_or_no_mm:
diff --git a/arch/sparc/mm/init_64.c b/arch/sparc/mm/init_64.c
index ed6be6ba2f4e..a70a5e1904d9 100644
--- a/arch/sparc/mm/init_64.c
+++ b/arch/sparc/mm/init_64.c
@@ -145,7 +145,8 @@ static void __init read_obp_memory(const char *property,
 	     cmp_p64, NULL);
 }
 
-unsigned long *sparc64_valid_addr_bitmap __read_mostly;
+unsigned long sparc64_valid_addr_bitmap[VALID_ADDR_BITMAP_BYTES /
+					sizeof(unsigned long)];
 EXPORT_SYMBOL(sparc64_valid_addr_bitmap);
 
 /* Kernel physical address base and size in bytes.  */
@@ -1874,7 +1875,7 @@ static int pavail_rescan_ents __initdata;
  * memory list again, and make sure it provides at least as much
  * memory as 'pavail' does.
  */
-static void __init setup_valid_addr_bitmap_from_pavail(void)
+static void __init setup_valid_addr_bitmap_from_pavail(unsigned long *bitmap)
 {
 	int i;
 
@@ -1897,8 +1898,7 @@ static void __init setup_valid_addr_bitmap_from_pavail(void)
 
 				if (new_start <= old_start &&
 				    new_end >= (old_start + PAGE_SIZE)) {
-					set_bit(old_start >> 22,
-						sparc64_valid_addr_bitmap);
+					set_bit(old_start >> 22, bitmap);
 					goto do_next_page;
 				}
 			}
@@ -1919,20 +1919,21 @@ static void __init setup_valid_addr_bitmap_from_pavail(void)
 	}
 }
 
+static void __init patch_tlb_miss_handler_bitmap(void)
+{
+	extern unsigned int valid_addr_bitmap_insn[];
+	extern unsigned int valid_addr_bitmap_patch[];
+
+	valid_addr_bitmap_insn[1] = valid_addr_bitmap_patch[1];
+	mb();
+	valid_addr_bitmap_insn[0] = valid_addr_bitmap_patch[0];
+	flushi(&valid_addr_bitmap_insn[0]);
+}
+
 void __init mem_init(void)
 {
 	unsigned long codepages, datapages, initpages;
 	unsigned long addr, last;
-	int i;
-
-	i = last_valid_pfn >> ((22 - PAGE_SHIFT) + 6);
-	i += 1;
-	sparc64_valid_addr_bitmap = (unsigned long *) alloc_bootmem(i << 3);
-	if (sparc64_valid_addr_bitmap == NULL) {
-		prom_printf("mem_init: Cannot alloc valid_addr_bitmap.\n");
-		prom_halt();
-	}
-	memset(sparc64_valid_addr_bitmap, 0, i << 3);
 
 	addr = PAGE_OFFSET + kern_base;
 	last = PAGE_ALIGN(kern_size) + addr;
@@ -1941,15 +1942,19 @@ void __init mem_init(void)
 		addr += PAGE_SIZE;
 	}
 
-	setup_valid_addr_bitmap_from_pavail();
+	setup_valid_addr_bitmap_from_pavail(sparc64_valid_addr_bitmap);
+	patch_tlb_miss_handler_bitmap();
 
 	high_memory = __va(last_valid_pfn << PAGE_SHIFT);
 
 #ifdef CONFIG_NEED_MULTIPLE_NODES
-	for_each_online_node(i) {
-		if (NODE_DATA(i)->node_spanned_pages != 0) {
-			totalram_pages +=
-				free_all_bootmem_node(NODE_DATA(i));
+	{
+		int i;
+		for_each_online_node(i) {
+			if (NODE_DATA(i)->node_spanned_pages != 0) {
+				totalram_pages +=
+					free_all_bootmem_node(NODE_DATA(i));
+			}
 		}
 	}
 #else
diff --git a/arch/sparc/mm/init_64.h b/arch/sparc/mm/init_64.h
index 16063870a489..c2f772dbd556 100644
--- a/arch/sparc/mm/init_64.h
+++ b/arch/sparc/mm/init_64.h
@@ -5,10 +5,13 @@
  * marked non-static so that assembler code can get at them.
  */
 
-#define MAX_PHYS_ADDRESS	(1UL << 42UL)
-#define KPTE_BITMAP_CHUNK_SZ	(256UL * 1024UL * 1024UL)
+#define MAX_PHYS_ADDRESS	(1UL << 41UL)
+#define KPTE_BITMAP_CHUNK_SZ		(256UL * 1024UL * 1024UL)
 #define KPTE_BITMAP_BYTES	\
 	((MAX_PHYS_ADDRESS / KPTE_BITMAP_CHUNK_SZ) / 8)
+#define VALID_ADDR_BITMAP_CHUNK_SZ	(4UL * 1024UL * 1024UL)
+#define VALID_ADDR_BITMAP_BYTES	\
+	((MAX_PHYS_ADDRESS / VALID_ADDR_BITMAP_CHUNK_SZ) / 8)
 
 extern unsigned long kern_linear_pte_xor[2];
 extern unsigned long kpte_linear_bitmap[KPTE_BITMAP_BYTES / sizeof(unsigned long)];
diff --git a/arch/x86/boot/compressed/Makefile b/arch/x86/boot/compressed/Makefile
index e2ff504b4ddc..f8ed0658404c 100644
--- a/arch/x86/boot/compressed/Makefile
+++ b/arch/x86/boot/compressed/Makefile
@@ -4,7 +4,7 @@
 # create a compressed vmlinux image from the original vmlinux
 #
 
-targets := vmlinux vmlinux.bin vmlinux.bin.gz vmlinux.bin.bz2 vmlinux.bin.lzma head_$(BITS).o misc.o piggy.o
+targets := vmlinux.lds vmlinux vmlinux.bin vmlinux.bin.gz vmlinux.bin.bz2 vmlinux.bin.lzma head_$(BITS).o misc.o piggy.o
 
 KBUILD_CFLAGS := -m$(BITS) -D__KERNEL__ $(LINUX_INCLUDE) -O2
 KBUILD_CFLAGS += -fno-strict-aliasing -fPIC
diff --git a/arch/x86/include/asm/pgtable.h b/arch/x86/include/asm/pgtable.h
index 3cc06e3fceb8..16748077559a 100644
--- a/arch/x86/include/asm/pgtable.h
+++ b/arch/x86/include/asm/pgtable.h
@@ -2,6 +2,7 @@
 #define _ASM_X86_PGTABLE_H
 
 #include <asm/page.h>
+#include <asm/e820.h>
 
 #include <asm/pgtable_types.h>
 
@@ -269,10 +270,17 @@ static inline pgprot_t pgprot_modify(pgprot_t oldprot, pgprot_t newprot)
 
 #define canon_pgprot(p) __pgprot(massage_pgprot(p))
 
-static inline int is_new_memtype_allowed(unsigned long flags,
-						unsigned long new_flags)
+static inline int is_new_memtype_allowed(u64 paddr, unsigned long size,
+					 unsigned long flags,
+					 unsigned long new_flags)
 {
 	/*
+	 * PAT type is always WB for ISA. So no need to check.
+	 */
+	if (is_ISA_range(paddr, paddr + size - 1))
+		return 1;
+
+	/*
 	 * Certain new memtypes are not allowed with certain
 	 * requested memtype:
 	 * - request is uncached, return cannot be write-back
diff --git a/arch/x86/kernel/cpu/Makefile b/arch/x86/kernel/cpu/Makefile
index 3efcb2b96a15..c1f253dac155 100644
--- a/arch/x86/kernel/cpu/Makefile
+++ b/arch/x86/kernel/cpu/Makefile
@@ -7,6 +7,10 @@ ifdef CONFIG_FUNCTION_TRACER
 CFLAGS_REMOVE_common.o = -pg
 endif
 
+# Make sure load_percpu_segment has no stackprotector
+nostackp := $(call cc-option, -fno-stack-protector)
+CFLAGS_common.o		:= $(nostackp)
+
 obj-y			:= intel_cacheinfo.o addon_cpuid_features.o
 obj-y			+= proc.o capflags.o powerflags.o common.o
 obj-y			+= vmware.o hypervisor.o
diff --git a/arch/x86/kernel/head_32.S b/arch/x86/kernel/head_32.S
index 0d98a01cbdb2..cc827ac9e8d3 100644
--- a/arch/x86/kernel/head_32.S
+++ b/arch/x86/kernel/head_32.S
@@ -261,9 +261,7 @@ page_pde_offset = (__PAGE_OFFSET >> 20);
  * which will be freed later
  */
 
-#ifndef CONFIG_HOTPLUG_CPU
-.section .init.text,"ax",@progbits
-#endif
+__CPUINIT
 
 #ifdef CONFIG_SMP
 ENTRY(startup_32_smp)
@@ -602,11 +600,7 @@ ignore_int:
 #endif
 	iret
 
-#ifndef CONFIG_HOTPLUG_CPU
-	__CPUINITDATA
-#else
 	__REFDATA
-#endif
 .align 4
 ENTRY(initial_code)
 	.long i386_start_kernel
diff --git a/arch/x86/kernel/process.c b/arch/x86/kernel/process.c
index 994dd6a4a2a0..071166a4ba83 100644
--- a/arch/x86/kernel/process.c
+++ b/arch/x86/kernel/process.c
@@ -519,16 +519,12 @@ static void c1e_idle(void)
 		if (!cpumask_test_cpu(cpu, c1e_mask)) {
 			cpumask_set_cpu(cpu, c1e_mask);
 			/*
-			 * Force broadcast so ACPI can not interfere. Needs
-			 * to run with interrupts enabled as it uses
-			 * smp_function_call.
+			 * Force broadcast so ACPI can not interfere.
 			 */
-			local_irq_enable();
 			clockevents_notify(CLOCK_EVT_NOTIFY_BROADCAST_FORCE,
 					   &cpu);
 			printk(KERN_INFO "Switch to broadcast mode on CPU%d\n",
 			       cpu);
-			local_irq_disable();
 		}
 		clockevents_notify(CLOCK_EVT_NOTIFY_BROADCAST_ENTER, &cpu);
 
diff --git a/arch/x86/kernel/vmlinux.lds.S b/arch/x86/kernel/vmlinux.lds.S
index 78d185d797de..9fc178255c04 100644
--- a/arch/x86/kernel/vmlinux.lds.S
+++ b/arch/x86/kernel/vmlinux.lds.S
@@ -46,11 +46,10 @@ PHDRS {
 	data PT_LOAD FLAGS(7);          /* RWE */
 #ifdef CONFIG_X86_64
 	user PT_LOAD FLAGS(7);          /* RWE */
-	data.init PT_LOAD FLAGS(7);     /* RWE */
 #ifdef CONFIG_SMP
 	percpu PT_LOAD FLAGS(7);        /* RWE */
 #endif
-	data.init2 PT_LOAD FLAGS(7);    /* RWE */
+	init PT_LOAD FLAGS(7);          /* RWE */
 #endif
 	note PT_NOTE FLAGS(0);          /* ___ */
 }
@@ -103,65 +102,43 @@ SECTIONS
 		__stop___ex_table = .;
 	} :text = 0x9090
 
-	RODATA
+	RO_DATA(PAGE_SIZE)
 
 	/* Data */
-	. = ALIGN(PAGE_SIZE);
 	.data : AT(ADDR(.data) - LOAD_OFFSET) {
 		/* Start of data section */
 		_sdata = .;
-		DATA_DATA
-		CONSTRUCTORS
-	} :data
+
+		/* init_task */
+		INIT_TASK_DATA(THREAD_SIZE)
 
 #ifdef CONFIG_X86_32
-	/* 32 bit has nosave before _edata */
-	. = ALIGN(PAGE_SIZE);
-	.data_nosave : AT(ADDR(.data_nosave) - LOAD_OFFSET) {
-		__nosave_begin = .;
-		*(.data.nosave)
-		. = ALIGN(PAGE_SIZE);
-		__nosave_end = .;
-	}
+		/* 32 bit has nosave before _edata */
+		NOSAVE_DATA
 #endif
 
-	. = ALIGN(PAGE_SIZE);
-	.data.page_aligned : AT(ADDR(.data.page_aligned) - LOAD_OFFSET) {
-		*(.data.page_aligned)
+		PAGE_ALIGNED_DATA(PAGE_SIZE)
 		*(.data.idt)
-	}
 
-#ifdef CONFIG_X86_32
-	. = ALIGN(32);
-#else
-	. = ALIGN(PAGE_SIZE);
-	. = ALIGN(CONFIG_X86_L1_CACHE_BYTES);
-#endif
-	.data.cacheline_aligned :
-		AT(ADDR(.data.cacheline_aligned) - LOAD_OFFSET) {
-		*(.data.cacheline_aligned)
-	}
+		CACHELINE_ALIGNED_DATA(CONFIG_X86_L1_CACHE_BYTES)
 
-	/* rarely changed data like cpu maps */
-#ifdef CONFIG_X86_32
-	. = ALIGN(32);
-#else
-	. = ALIGN(CONFIG_X86_INTERNODE_CACHE_BYTES);
-#endif
-	.data.read_mostly : AT(ADDR(.data.read_mostly) - LOAD_OFFSET) {
-		*(.data.read_mostly)
+		DATA_DATA
+		CONSTRUCTORS
+
+		/* rarely changed data like cpu maps */
+		READ_MOSTLY_DATA(CONFIG_X86_INTERNODE_CACHE_BYTES)
 
 		/* End of data section */
 		_edata = .;
-	}
+	} :data
 
 #ifdef CONFIG_X86_64
 
 #define VSYSCALL_ADDR (-10*1024*1024)
-#define VSYSCALL_PHYS_ADDR ((LOADADDR(.data.read_mostly) + \
-                            SIZEOF(.data.read_mostly) + 4095) & ~(4095))
-#define VSYSCALL_VIRT_ADDR ((ADDR(.data.read_mostly) + \
-                            SIZEOF(.data.read_mostly) + 4095) & ~(4095))
+#define VSYSCALL_PHYS_ADDR ((LOADADDR(.data) + SIZEOF(.data) + \
+                            PAGE_SIZE - 1) & ~(PAGE_SIZE - 1))
+#define VSYSCALL_VIRT_ADDR ((ADDR(.data) + SIZEOF(.data) + \
+                            PAGE_SIZE - 1) & ~(PAGE_SIZE - 1))
 
 #define VLOAD_OFFSET (VSYSCALL_ADDR - VSYSCALL_PHYS_ADDR)
 #define VLOAD(x) (ADDR(x) - VLOAD_OFFSET)
@@ -227,35 +204,29 @@ SECTIONS
 
 #endif /* CONFIG_X86_64 */
 
-	/* init_task */
-	. = ALIGN(THREAD_SIZE);
-	.data.init_task : AT(ADDR(.data.init_task) - LOAD_OFFSET) {
-		*(.data.init_task)
+	/* Init code and data - will be freed after init */
+	. = ALIGN(PAGE_SIZE);
+	.init.begin : AT(ADDR(.init.begin) - LOAD_OFFSET) {
+		__init_begin = .; /* paired with __init_end */
 	}
-#ifdef CONFIG_X86_64
-	 :data.init
-#endif
 
+#if defined(CONFIG_X86_64) && defined(CONFIG_SMP)
 	/*
-	 * smp_locks might be freed after init
-	 * start/end must be page aligned
+	 * percpu offsets are zero-based on SMP.  PERCPU_VADDR() changes the
+	 * output PHDR, so the next output section - .init.text - should
+	 * start another segment - init.
 	 */
-	. = ALIGN(PAGE_SIZE);
-	.smp_locks : AT(ADDR(.smp_locks) - LOAD_OFFSET) {
-		__smp_locks = .;
-		*(.smp_locks)
-		__smp_locks_end = .;
-		. = ALIGN(PAGE_SIZE);
-	}
+	PERCPU_VADDR(0, :percpu)
+#endif
 
-	/* Init code and data - will be freed after init */
-	. = ALIGN(PAGE_SIZE);
 	.init.text : AT(ADDR(.init.text) - LOAD_OFFSET) {
-		__init_begin = .; /* paired with __init_end */
 		_sinittext = .;
 		INIT_TEXT
 		_einittext = .;
 	}
+#ifdef CONFIG_X86_64
+	:init
+#endif
 
 	.init.data : AT(ADDR(.init.data) - LOAD_OFFSET) {
 		INIT_DATA
@@ -326,17 +297,7 @@ SECTIONS
 	}
 #endif
 
-#if defined(CONFIG_X86_64) && defined(CONFIG_SMP)
-	/*
-	 * percpu offsets are zero-based on SMP.  PERCPU_VADDR() changes the
-	 * output PHDR, so the next output section - __data_nosave - should
-	 * start another section data.init2.  Also, pda should be at the head of
-	 * percpu area.  Preallocate it and define the percpu offset symbol
-	 * so that it can be accessed as a percpu variable.
-	 */
-	. = ALIGN(PAGE_SIZE);
-	PERCPU_VADDR(0, :percpu)
-#else
+#if !defined(CONFIG_X86_64) || !defined(CONFIG_SMP)
 	PERCPU(PAGE_SIZE)
 #endif
 
@@ -347,15 +308,22 @@ SECTIONS
 		__init_end = .;
 	}
 
+	/*
+	 * smp_locks might be freed after init
+	 * start/end must be page aligned
+	 */
+	. = ALIGN(PAGE_SIZE);
+	.smp_locks : AT(ADDR(.smp_locks) - LOAD_OFFSET) {
+		__smp_locks = .;
+		*(.smp_locks)
+		__smp_locks_end = .;
+		. = ALIGN(PAGE_SIZE);
+	}
+
 #ifdef CONFIG_X86_64
 	.data_nosave : AT(ADDR(.data_nosave) - LOAD_OFFSET) {
-		. = ALIGN(PAGE_SIZE);
-		__nosave_begin = .;
-		*(.data.nosave)
-		. = ALIGN(PAGE_SIZE);
-		__nosave_end = .;
-	} :data.init2
-	/* use another section data.init2, see PERCPU_VADDR() above */
+		NOSAVE_DATA
+	}
 #endif
 
 	/* BSS */
diff --git a/arch/x86/mm/init_64.c b/arch/x86/mm/init_64.c
index 6176fe8f29e0..ea56b8cbb6a6 100644
--- a/arch/x86/mm/init_64.c
+++ b/arch/x86/mm/init_64.c
@@ -796,7 +796,7 @@ int __init reserve_bootmem_generic(unsigned long phys, unsigned long len,
 		return ret;
 
 #else
-	reserve_bootmem(phys, len, BOOTMEM_DEFAULT);
+	reserve_bootmem(phys, len, flags);
 #endif
 
 	if (phys+len <= MAX_DMA_PFN*PAGE_SIZE) {
diff --git a/arch/x86/mm/pat.c b/arch/x86/mm/pat.c
index e6718bb28065..352aa9e927e2 100644
--- a/arch/x86/mm/pat.c
+++ b/arch/x86/mm/pat.c
@@ -623,7 +623,8 @@ static int reserve_pfn_range(u64 paddr, unsigned long size, pgprot_t *vma_prot,
 		return ret;
 
 	if (flags != want_flags) {
-		if (strict_prot || !is_new_memtype_allowed(want_flags, flags)) {
+		if (strict_prot ||
+		    !is_new_memtype_allowed(paddr, size, want_flags, flags)) {
 			free_memtype(paddr, paddr + size);
 			printk(KERN_ERR "%s:%d map pfn expected mapping type %s"
 				" for %Lx-%Lx, got %s\n",
diff --git a/arch/x86/xen/Makefile b/arch/x86/xen/Makefile
index 172438f86a02..7410640db173 100644
--- a/arch/x86/xen/Makefile
+++ b/arch/x86/xen/Makefile
@@ -5,6 +5,10 @@ CFLAGS_REMOVE_time.o = -pg
 CFLAGS_REMOVE_irq.o = -pg
 endif
 
+# Make sure early boot has no stackprotector
+nostackp := $(call cc-option, -fno-stack-protector)
+CFLAGS_enlighten.o		:= $(nostackp)
+
 obj-y		:= enlighten.o setup.o multicalls.o mmu.o irq.o \
 			time.o xen-asm.o xen-asm_$(BITS).o \
 			grant-table.o suspend.o
diff --git a/arch/x86/xen/enlighten.c b/arch/x86/xen/enlighten.c
index 0a1700a2be9c..e90540a46a0b 100644
--- a/arch/x86/xen/enlighten.c
+++ b/arch/x86/xen/enlighten.c
@@ -974,10 +974,6 @@ asmlinkage void __init xen_start_kernel(void)
 
 	xen_domain_type = XEN_PV_DOMAIN;
 
-	BUG_ON(memcmp(xen_start_info->magic, "xen-3", 5) != 0);
-
-	xen_setup_features();
-
 	/* Install Xen paravirt ops */
 	pv_info = xen_info;
 	pv_init_ops = xen_init_ops;
@@ -986,8 +982,15 @@ asmlinkage void __init xen_start_kernel(void)
 	pv_apic_ops = xen_apic_ops;
 	pv_mmu_ops = xen_mmu_ops;
 
-	xen_init_irq_ops();
+#ifdef CONFIG_X86_64
+	/*
+	 * Setup percpu state.  We only need to do this for 64-bit
+	 * because 32-bit already has %fs set properly.
+	 */
+	load_percpu_segment(0);
+#endif
 
+	xen_init_irq_ops();
 	xen_init_cpuid_mask();
 
 #ifdef CONFIG_X86_LOCAL_APIC
@@ -997,6 +1000,8 @@ asmlinkage void __init xen_start_kernel(void)
 	set_xen_basic_apic_ops();
 #endif
 
+	xen_setup_features();
+
 	if (xen_feature(XENFEAT_mmu_pt_update_preserve_ad)) {
 		pv_mmu_ops.ptep_modify_prot_start = xen_ptep_modify_prot_start;
 		pv_mmu_ops.ptep_modify_prot_commit = xen_ptep_modify_prot_commit;
@@ -1004,13 +1009,6 @@ asmlinkage void __init xen_start_kernel(void)
 
 	machine_ops = xen_machine_ops;
 
-#ifdef CONFIG_X86_64
-	/*
-	 * Setup percpu state.  We only need to do this for 64-bit
-	 * because 32-bit already has %fs set properly.
-	 */
-	load_percpu_segment(0);
-#endif
 	/*
 	 * The only reliable way to retain the initial address of the
 	 * percpu gdt_page is to remember it here, so we can go and
diff --git a/drivers/acpi/processor_idle.c b/drivers/acpi/processor_idle.c
index 0f90a640f832..716709b96c90 100644
--- a/drivers/acpi/processor_idle.c
+++ b/drivers/acpi/processor_idle.c
@@ -162,8 +162,9 @@ static void lapic_timer_check_state(int state, struct acpi_processor *pr,
 		pr->power.timer_broadcast_on_state = state;
 }
 
-static void lapic_timer_propagate_broadcast(struct acpi_processor *pr)
+static void lapic_timer_propagate_broadcast(void *arg)
 {
+	struct acpi_processor *pr = (struct acpi_processor *) arg;
 	unsigned long reason;
 
 	reason = pr->power.timer_broadcast_on_state < INT_MAX ?
@@ -635,7 +636,8 @@ static int acpi_processor_power_verify(struct acpi_processor *pr)
 		working++;
 	}
 
-	lapic_timer_propagate_broadcast(pr);
+	smp_call_function_single(pr->id, lapic_timer_propagate_broadcast,
+				 pr, 1);
 
 	return (working);
 }
diff --git a/drivers/char/tty_ldisc.c b/drivers/char/tty_ldisc.c
index 173afadac1c9..c8f7b70ab6cc 100644
--- a/drivers/char/tty_ldisc.c
+++ b/drivers/char/tty_ldisc.c
@@ -508,8 +508,9 @@ static void tty_ldisc_restore(struct tty_struct *tty, struct tty_ldisc *old)
  *	be obtained while the delayed work queue halt ensures that no more
  *	data is fed to the ldisc.
  *
- *	In order to wait for any existing references to complete see
- *	tty_ldisc_wait_idle.
+ *	You need to do a 'flush_scheduled_work()' (outside the ldisc_mutex)
+ *	in order to make sure any currently executing ldisc work is also
+ *	flushed.
  */
 
 static int tty_ldisc_halt(struct tty_struct *tty)
@@ -753,11 +754,14 @@ void tty_ldisc_hangup(struct tty_struct *tty)
 	 * N_TTY.
 	 */
 	if (tty->driver->flags & TTY_DRIVER_RESET_TERMIOS) {
+		/* Make sure the old ldisc is quiescent */
+		tty_ldisc_halt(tty);
+		flush_scheduled_work();
+
 		/* Avoid racing set_ldisc or tty_ldisc_release */
 		mutex_lock(&tty->ldisc_mutex);
 		if (tty->ldisc) {	/* Not yet closed */
 			/* Switch back to N_TTY */
-			tty_ldisc_halt(tty);
 			tty_ldisc_reinit(tty);
 			/* At this point we have a closed ldisc and we want to
 			   reopen it. We could defer this to the next open but
diff --git a/drivers/net/irda/au1k_ir.c b/drivers/net/irda/au1k_ir.c
index c4361d466597..ee1cff5c9b21 100644
--- a/drivers/net/irda/au1k_ir.c
+++ b/drivers/net/irda/au1k_ir.c
@@ -23,7 +23,6 @@
 #include <linux/init.h>
 #include <linux/errno.h>
 #include <linux/netdevice.h>
-#include <linux/etherdevice.h>
 #include <linux/slab.h>
 #include <linux/rtnetlink.h>
 #include <linux/interrupt.h>
@@ -205,9 +204,6 @@ static const struct net_device_ops au1k_irda_netdev_ops = {
 	.ndo_start_xmit		= au1k_irda_hard_xmit,
 	.ndo_tx_timeout		= au1k_tx_timeout,
 	.ndo_do_ioctl		= au1k_irda_ioctl,
-	.ndo_change_mtu		= eth_change_mtu,
-	.ndo_validate_addr	= eth_validate_addr,
-	.ndo_set_mac_address	= eth_mac_addr,
 };
 
 static int au1k_irda_net_init(struct net_device *dev)
diff --git a/drivers/net/irda/sa1100_ir.c b/drivers/net/irda/sa1100_ir.c
index 2aeb2e6aec1b..b039cb081e94 100644
--- a/drivers/net/irda/sa1100_ir.c
+++ b/drivers/net/irda/sa1100_ir.c
@@ -24,7 +24,6 @@
 #include <linux/init.h>
 #include <linux/errno.h>
 #include <linux/netdevice.h>
-#include <linux/etherdevice.h>
 #include <linux/slab.h>
 #include <linux/rtnetlink.h>
 #include <linux/interrupt.h>
@@ -881,9 +880,6 @@ static const struct net_device_ops sa1100_irda_netdev_ops = {
 	.ndo_stop		= sa1100_irda_stop,
 	.ndo_start_xmit		= sa1100_irda_hard_xmit,
 	.ndo_do_ioctl		= sa1100_irda_ioctl,
-	.ndo_change_mtu		= eth_change_mtu,
-	.ndo_validate_addr	= eth_validate_addr,
-	.ndo_set_mac_address	= eth_mac_addr,
 };
 
 static int sa1100_irda_probe(struct platform_device *pdev)
diff --git a/drivers/sbus/char/bbc_envctrl.c b/drivers/sbus/char/bbc_envctrl.c
index 15dab96d05e3..7c815d3327f7 100644
--- a/drivers/sbus/char/bbc_envctrl.c
+++ b/drivers/sbus/char/bbc_envctrl.c
@@ -537,8 +537,12 @@ int bbc_envctrl_init(struct bbc_i2c_bus *bp)
 	}
 	if (temp_index != 0 && fan_index != 0) {
 		kenvctrld_task = kthread_run(kenvctrld, NULL, "kenvctrld");
-		if (IS_ERR(kenvctrld_task))
-			return PTR_ERR(kenvctrld_task);
+		if (IS_ERR(kenvctrld_task)) {
+			int err = PTR_ERR(kenvctrld_task);
+
+			kenvctrld_task = NULL;
+			return err;
+		}
 	}
 
 	return 0;
@@ -561,7 +565,8 @@ void bbc_envctrl_cleanup(struct bbc_i2c_bus *bp)
 	struct bbc_cpu_temperature *tp, *tpos;
 	struct bbc_fan_control *fp, *fpos;
 
-	kthread_stop(kenvctrld_task);
+	if (kenvctrld_task)
+		kthread_stop(kenvctrld_task);
 
 	list_for_each_entry_safe(tp, tpos, &bp->temps, bp_list) {
 		list_del(&tp->bp_list);
diff --git a/drivers/watchdog/ar7_wdt.c b/drivers/watchdog/ar7_wdt.c
index 3fe9742c23ca..2f8643efe92c 100644
--- a/drivers/watchdog/ar7_wdt.c
+++ b/drivers/watchdog/ar7_wdt.c
@@ -37,7 +37,7 @@
 #include <linux/uaccess.h>
 
 #include <asm/addrspace.h>
-#include <asm/ar7/ar7.h>
+#include <asm/mach-ar7/ar7.h>
 
 #define DRVNAME "ar7_wdt"
 #define LONGNAME "TI AR7 Watchdog Timer"
diff --git a/fs/ext3/Kconfig b/fs/ext3/Kconfig
index fb3c1a21b135..522b15498f45 100644
--- a/fs/ext3/Kconfig
+++ b/fs/ext3/Kconfig
@@ -29,23 +29,25 @@ config EXT3_FS
 	  module will be called ext3.
 
 config EXT3_DEFAULTS_TO_ORDERED
-	bool "Default to 'data=ordered' in ext3 (legacy option)"
+	bool "Default to 'data=ordered' in ext3"
 	depends on EXT3_FS
 	help
-	  If a filesystem does not explicitly specify a data ordering
-	  mode, and the journal capability allowed it, ext3 used to
-	  historically default to 'data=ordered'.
-
-	  That was a rather unfortunate choice, because it leads to all
-	  kinds of latency problems, and the 'data=writeback' mode is more
-	  appropriate these days.
-
-	  You should probably always answer 'n' here, and if you really
-	  want to use 'data=ordered' mode, set it in the filesystem itself
-	  with 'tune2fs -o journal_data_ordered'.
-
-	  But if you really want to enable the legacy default, you can do
-	  so by answering 'y' to this question.
+	  The journal mode options for ext3 have different tradeoffs
+	  between when data is guaranteed to be on disk and
+	  performance.	The use of "data=writeback" can cause
+	  unwritten data to appear in files after an system crash or
+	  power failure, which can be a security issue.	 However,
+	  "data=ordered" mode can also result in major performance
+	  problems, including seconds-long delays before an fsync()
+	  call returns.	 For details, see:
+
+	  http://ext4.wiki.kernel.org/index.php/Ext3_data_mode_tradeoffs
+
+	  If you have been historically happy with ext3's performance,
+	  data=ordered mode will be a safe choice and you should
+	  answer 'y' here.  If you understand the reliability and data
+	  privacy issues of data=writeback and are willing to make
+	  that trade off, answer 'n'.
 
 config EXT3_FS_XATTR
 	bool "Ext3 extended attributes"
diff --git a/fs/ext3/super.c b/fs/ext3/super.c
index 524b349c6299..a8d80a7f1105 100644
--- a/fs/ext3/super.c
+++ b/fs/ext3/super.c
@@ -543,6 +543,19 @@ static inline void ext3_show_quota_options(struct seq_file *seq, struct super_bl
 #endif
 }
 
+static char *data_mode_string(unsigned long mode)
+{
+	switch (mode) {
+	case EXT3_MOUNT_JOURNAL_DATA:
+		return "journal";
+	case EXT3_MOUNT_ORDERED_DATA:
+		return "ordered";
+	case EXT3_MOUNT_WRITEBACK_DATA:
+		return "writeback";
+	}
+	return "unknown";
+}
+
 /*
  * Show an option if
  *  - it's set to a non-default value OR
@@ -616,13 +629,8 @@ static int ext3_show_options(struct seq_file *seq, struct vfsmount *vfs)
 	if (test_opt(sb, NOBH))
 		seq_puts(seq, ",nobh");
 
-	if (test_opt(sb, DATA_FLAGS) == EXT3_MOUNT_JOURNAL_DATA)
-		seq_puts(seq, ",data=journal");
-	else if (test_opt(sb, DATA_FLAGS) == EXT3_MOUNT_ORDERED_DATA)
-		seq_puts(seq, ",data=ordered");
-	else if (test_opt(sb, DATA_FLAGS) == EXT3_MOUNT_WRITEBACK_DATA)
-		seq_puts(seq, ",data=writeback");
-
+	seq_printf(seq, ",data=%s", data_mode_string(sbi->s_mount_opt &
+						     EXT3_MOUNT_DATA_FLAGS));
 	if (test_opt(sb, DATA_ERR_ABORT))
 		seq_puts(seq, ",data_err=abort");
 
@@ -1024,12 +1032,18 @@ static int parse_options (char *options, struct super_block *sb,
 		datacheck:
 			if (is_remount) {
 				if ((sbi->s_mount_opt & EXT3_MOUNT_DATA_FLAGS)
-						!= data_opt) {
-					printk(KERN_ERR
-						"EXT3-fs: cannot change data "
-						"mode on remount\n");
-					return 0;
-				}
+						== data_opt)
+					break;
+				printk(KERN_ERR
+					"EXT3-fs (device %s): Cannot change "
+					"data mode on remount. The filesystem "
+					"is mounted in data=%s mode and you "
+					"try to remount it in data=%s mode.\n",
+					sb->s_id,
+					data_mode_string(sbi->s_mount_opt &
+							EXT3_MOUNT_DATA_FLAGS),
+					data_mode_string(data_opt));
+				return 0;
 			} else {
 				sbi->s_mount_opt &= ~EXT3_MOUNT_DATA_FLAGS;
 				sbi->s_mount_opt |= data_opt;
diff --git a/fs/nfs/nfs4state.c b/fs/nfs/nfs4state.c
index 65ca8c18476f..1434080aefeb 100644
--- a/fs/nfs/nfs4state.c
+++ b/fs/nfs/nfs4state.c
@@ -1250,8 +1250,8 @@ static void nfs4_state_manager(struct nfs_client *clp)
 				continue;
 		}
 		/* Initialize or reset the session */
-		if (nfs4_has_session(clp) &&
-		   test_and_clear_bit(NFS4CLNT_SESSION_SETUP, &clp->cl_state)) {
+		if (test_and_clear_bit(NFS4CLNT_SESSION_SETUP, &clp->cl_state)
+		   && nfs4_has_session(clp)) {
 			if (clp->cl_cons_state == NFS_CS_SESSION_INITING)
 				status = nfs4_initialize_session(clp);
 			else
diff --git a/fs/ocfs2/alloc.c b/fs/ocfs2/alloc.c
index f9a3e8942669..ab513ddaeff2 100644
--- a/fs/ocfs2/alloc.c
+++ b/fs/ocfs2/alloc.c
@@ -6851,7 +6851,7 @@ static int ocfs2_do_truncate(struct ocfs2_super *osb,
 	}
 	status = 0;
 bail:
-
+	brelse(last_eb_bh);
 	mlog_exit(status);
 	return status;
 }
diff --git a/fs/ocfs2/dlm/dlmunlock.c b/fs/ocfs2/dlm/dlmunlock.c
index fcf879ed6930..756f5b0998e0 100644
--- a/fs/ocfs2/dlm/dlmunlock.c
+++ b/fs/ocfs2/dlm/dlmunlock.c
@@ -122,7 +122,7 @@ static enum dlm_status dlmunlock_common(struct dlm_ctxt *dlm,
 	 * that still has AST's pending... */
 	in_use = !list_empty(&lock->ast_list);
 	spin_unlock(&dlm->ast_lock);
-	if (in_use) {
+	if (in_use && !(flags & LKM_CANCEL)) {
 	       mlog(ML_ERROR, "lockres %.*s: Someone is calling dlmunlock "
 		    "while waiting for an ast!", res->lockname.len,
 		    res->lockname.name);
@@ -131,7 +131,7 @@ static enum dlm_status dlmunlock_common(struct dlm_ctxt *dlm,
 
 	spin_lock(&res->spinlock);
 	if (res->state & DLM_LOCK_RES_IN_PROGRESS) {
-		if (master_node) {
+		if (master_node && !(flags & LKM_CANCEL)) {
 			mlog(ML_ERROR, "lockres in progress!\n");
 			spin_unlock(&res->spinlock);
 			return DLM_FORWARD;
diff --git a/fs/ocfs2/ocfs2_lockid.h b/fs/ocfs2/ocfs2_lockid.h
index fcdba091af3d..c212cf5a2bdf 100644
--- a/fs/ocfs2/ocfs2_lockid.h
+++ b/fs/ocfs2/ocfs2_lockid.h
@@ -108,6 +108,7 @@ static char *ocfs2_lock_type_strings[] = {
 	[OCFS2_LOCK_TYPE_OPEN] = "Open",
 	[OCFS2_LOCK_TYPE_FLOCK] = "Flock",
 	[OCFS2_LOCK_TYPE_QINFO] = "Quota",
+	[OCFS2_LOCK_TYPE_NFS_SYNC] = "NFSSync",
 	[OCFS2_LOCK_TYPE_ORPHAN_SCAN] = "OrphanScan",
 };
 
diff --git a/fs/ocfs2/quota_global.c b/fs/ocfs2/quota_global.c
index bf7742d0ee3b..44f2a5e1d042 100644
--- a/fs/ocfs2/quota_global.c
+++ b/fs/ocfs2/quota_global.c
@@ -23,6 +23,7 @@
 #include "sysfile.h"
 #include "dlmglue.h"
 #include "uptodate.h"
+#include "super.h"
 #include "quota.h"
 
 static struct workqueue_struct *ocfs2_quota_wq = NULL;
@@ -114,6 +115,15 @@ int ocfs2_read_quota_block(struct inode *inode, u64 v_block,
 	int rc = 0;
 	struct buffer_head *tmp = *bh;
 
+	if (i_size_read(inode) >> inode->i_sb->s_blocksize_bits <= v_block) {
+		ocfs2_error(inode->i_sb,
+			    "Quota file %llu is probably corrupted! Requested "
+			    "to read block %Lu but file has size only %Lu\n",
+			    (unsigned long long)OCFS2_I(inode)->ip_blkno,
+			    (unsigned long long)v_block,
+			    (unsigned long long)i_size_read(inode));
+		return -EIO;
+	}
 	rc = ocfs2_read_virt_blocks(inode, v_block, 1, &tmp, 0,
 				    ocfs2_validate_quota_block);
 	if (rc)
diff --git a/fs/ocfs2/super.c b/fs/ocfs2/super.c
index b0ee0fdf799a..a3f8871d21fd 100644
--- a/fs/ocfs2/super.c
+++ b/fs/ocfs2/super.c
@@ -1218,13 +1218,17 @@ static void ocfs2_kill_sb(struct super_block *sb)
 {
 	struct ocfs2_super *osb = OCFS2_SB(sb);
 
+	/* Failed mount? */
+	if (!osb || atomic_read(&osb->vol_state) == VOLUME_DISABLED)
+		goto out;
+
 	/* Prevent further queueing of inode drop events */
 	spin_lock(&dentry_list_lock);
 	ocfs2_set_osb_flag(osb, OCFS2_OSB_DROP_DENTRY_LOCK_IMMED);
 	spin_unlock(&dentry_list_lock);
 	/* Wait for work to finish and/or remove it */
 	cancel_work_sync(&osb->dentry_lock_work);
-
+out:
 	kill_block_super(sb);
 }
 
diff --git a/init/main.c b/init/main.c
index a6075cbb4be0..43236fddb537 100644
--- a/init/main.c
+++ b/init/main.c
@@ -732,13 +732,14 @@ static void __init do_ctors(void)
 int initcall_debug;
 core_param(initcall_debug, initcall_debug, bool, 0644);
 
+static char msgbuf[64];
+static struct boot_trace_call call;
+static struct boot_trace_ret ret;
+
 int do_one_initcall(initcall_t fn)
 {
 	int count = preempt_count();
 	ktime_t calltime, delta, rettime;
-	char msgbuf[64];
-	struct boot_trace_call call;
-	struct boot_trace_ret ret;
 
 	if (initcall_debug) {
 		call.caller = task_pid_nr(current);
diff --git a/kernel/perf_counter.c b/kernel/perf_counter.c
index cb55cf1eed20..d52f2fcc6301 100644
--- a/kernel/perf_counter.c
+++ b/kernel/perf_counter.c
@@ -1791,7 +1791,7 @@ static int perf_counter_read_group(struct perf_counter *counter,
 	size += err;
 
 	list_for_each_entry(sub, &leader->sibling_list, list_entry) {
-		err = perf_counter_read_entry(counter, read_format,
+		err = perf_counter_read_entry(sub, read_format,
 				buf + size);
 		if (err < 0)
 			return err;
diff --git a/kernel/time/clockevents.c b/kernel/time/clockevents.c
index a21d577867be..05097c49f56b 100644
--- a/kernel/time/clockevents.c
+++ b/kernel/time/clockevents.c
@@ -137,11 +137,12 @@ int clockevents_program_event(struct clock_event_device *dev, ktime_t expires,
  */
 int clockevents_register_notifier(struct notifier_block *nb)
 {
+	unsigned long flags;
 	int ret;
 
-	atomic_spin_lock(&clockevents_lock);
+	atomic_spin_lock_irqsave(&clockevents_lock, flags);
 	ret = raw_notifier_chain_register(&clockevents_chain, nb);
-	atomic_spin_unlock(&clockevents_lock);
+	atomic_spin_unlock_irqrestore(&clockevents_lock, flags);
 
 	return ret;
 }
@@ -178,16 +179,18 @@ static void clockevents_notify_released(void)
  */
 void clockevents_register_device(struct clock_event_device *dev)
 {
+	unsigned long flags;
+
 	BUG_ON(dev->mode != CLOCK_EVT_MODE_UNUSED);
 	BUG_ON(!dev->cpumask);
 
-	atomic_spin_lock(&clockevents_lock);
+	atomic_spin_lock_irqsave(&clockevents_lock, flags);
 
 	list_add(&dev->list, &clockevent_devices);
 	clockevents_do_notify(CLOCK_EVT_NOTIFY_ADD, dev);
 	clockevents_notify_released();
 
-	atomic_spin_unlock(&clockevents_lock);
+	atomic_spin_unlock_irqrestore(&clockevents_lock, flags);
 }
 EXPORT_SYMBOL_GPL(clockevents_register_device);
 
@@ -235,8 +238,10 @@ void clockevents_exchange_device(struct clock_event_device *old,
 void clockevents_notify(unsigned long reason, void *arg)
 {
 	struct list_head *node, *tmp;
+	unsigned long flags;
+
+	atomic_spin_lock_irqsave(&clockevents_lock, flags);
 
-	atomic_spin_lock(&clockevents_lock);
 	clockevents_do_notify(reason, arg);
 
 	switch (reason) {
@@ -251,7 +256,7 @@ void clockevents_notify(unsigned long reason, void *arg)
 	default:
 		break;
 	}
-	atomic_spin_unlock(&clockevents_lock);
+	atomic_spin_unlock_irqrestore(&clockevents_lock, flags);
 }
 EXPORT_SYMBOL_GPL(clockevents_notify);
 #endif
diff --git a/kernel/time/tick-broadcast.c b/kernel/time/tick-broadcast.c
index 9736ccb55bdf..e6d728617de7 100644
--- a/kernel/time/tick-broadcast.c
+++ b/kernel/time/tick-broadcast.c
@@ -205,11 +205,11 @@ static void tick_handle_periodic_broadcast(struct clock_event_device *dev)
  * Powerstate information: The system enters/leaves a state, where
  * affected devices might stop
  */
-static void tick_do_broadcast_on_off(void *why)
+static void tick_do_broadcast_on_off(unsigned long *reason)
 {
 	struct clock_event_device *bc, *dev;
 	struct tick_device *td;
-	unsigned long flags, *reason = why;
+	unsigned long flags;
 	int cpu, bc_stopped;
 
 	atomic_spin_lock_irqsave(&tick_broadcast_lock, flags);
@@ -276,8 +276,7 @@ void tick_broadcast_on_off(unsigned long reason, int *oncpu)
 		printk(KERN_ERR "tick-broadcast: ignoring broadcast for "
 		       "offline CPU #%d\n", *oncpu);
 	else
-		smp_call_function_single(*oncpu, tick_do_broadcast_on_off,
-					 &reason, 1);
+		tick_do_broadcast_on_off(&reason);
 }
 
 /*
diff --git a/kernel/time/timer_list.c b/kernel/time/timer_list.c
index b794d0275c2a..9b20c72edc48 100644
--- a/kernel/time/timer_list.c
+++ b/kernel/time/timer_list.c
@@ -286,7 +286,7 @@ static int __init init_timer_list_procfs(void)
 {
 	struct proc_dir_entry *pe;
 
-	pe = proc_create("timer_list", 0644, NULL, &timer_list_fops);
+	pe = proc_create("timer_list", 0444, NULL, &timer_list_fops);
 	if (!pe)
 		return -ENOMEM;
 	return 0;
diff --git a/kernel/trace/ftrace.c b/kernel/trace/ftrace.c
index 1e1d23c26308..25edd5cc5935 100644
--- a/kernel/trace/ftrace.c
+++ b/kernel/trace/ftrace.c
@@ -2278,7 +2278,11 @@ ftrace_regex_write(struct file *file, const char __user *ubuf,
 	read++;
 	cnt--;
 
-	if (!(iter->flags & ~FTRACE_ITER_CONT)) {
+	/*
+	 * If the parser haven't finished with the last write,
+	 * continue reading the user input without skipping spaces.
+	 */
+	if (!(iter->flags & FTRACE_ITER_CONT)) {
 		/* skip white space */
 		while (cnt && isspace(ch)) {
 			ret = get_user(ch, ubuf++);
@@ -2288,8 +2292,9 @@ ftrace_regex_write(struct file *file, const char __user *ubuf,
 			cnt--;
 		}
 
+		/* only spaces were written */
 		if (isspace(ch)) {
-			file->f_pos += read;
+			*ppos += read;
 			ret = read;
 			goto out;
 		}
@@ -2319,12 +2324,12 @@ ftrace_regex_write(struct file *file, const char __user *ubuf,
 		if (ret)
 			goto out;
 		iter->buffer_idx = 0;
-	} else
+	} else {
 		iter->flags |= FTRACE_ITER_CONT;
+		iter->buffer[iter->buffer_idx++] = ch;
+	}
 
-
-	file->f_pos += read;
-
+	*ppos += read;
 	ret = read;
  out:
 	mutex_unlock(&ftrace_regex_lock);
diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c
index dd185a741e4c..37624d77ad02 100644
--- a/kernel/trace/trace.c
+++ b/kernel/trace/trace.c
@@ -3896,17 +3896,9 @@ trace_options_core_write(struct file *filp, const char __user *ubuf, size_t cnt,
 	if (ret < 0)
 		return ret;
 
-	switch (val) {
-	case 0:
-		trace_flags &= ~(1 << index);
-		break;
-	case 1:
-		trace_flags |= 1 << index;
-		break;
-
-	default:
+	if (val != 0 && val != 1)
 		return -EINVAL;
-	}
+	set_tracer_flags(1 << index, val);
 
 	*ppos += cnt;
 
diff --git a/lib/dma-debug.c b/lib/dma-debug.c
index 65b0d99b6d0a..58a9f9fc609a 100644
--- a/lib/dma-debug.c
+++ b/lib/dma-debug.c
@@ -156,9 +156,13 @@ static bool driver_filter(struct device *dev)
 		return true;
 
 	/* driver filter on and initialized */
-	if (current_driver && dev->driver == current_driver)
+	if (current_driver && dev && dev->driver == current_driver)
 		return true;
 
+	/* driver filter on, but we can't filter on a NULL device... */
+	if (!dev)
+		return false;
+
 	if (current_driver || !current_driver_name[0])
 		return false;
 
@@ -183,17 +187,17 @@ static bool driver_filter(struct device *dev)
 	return ret;
 }
 
-#define err_printk(dev, entry, format, arg...) do {		\
-		error_count += 1;				\
-		if (driver_filter(dev) &&			\
-		    (show_all_errors || show_num_errors > 0)) {	\
-			WARN(1, "%s %s: " format,		\
-			     dev_driver_string(dev),		\
-			     dev_name(dev) , ## arg);		\
-			dump_entry_trace(entry);		\
-		}						\
-		if (!show_all_errors && show_num_errors > 0)	\
-			show_num_errors -= 1;			\
+#define err_printk(dev, entry, format, arg...) do {			\
+		error_count += 1;					\
+		if (driver_filter(dev) &&				\
+		    (show_all_errors || show_num_errors > 0)) {		\
+			WARN(1, "%s %s: " format,			\
+			     dev ? dev_driver_string(dev) : "NULL",	\
+			     dev ? dev_name(dev) : "NULL", ## arg);	\
+			dump_entry_trace(entry);			\
+		}							\
+		if (!show_all_errors && show_num_errors > 0)		\
+			show_num_errors -= 1;				\
 	} while (0);
 
 /*
diff --git a/net/sched/sch_api.c b/net/sched/sch_api.c
index e1c2bf7e9ba4..92e6f3a52c13 100644
--- a/net/sched/sch_api.c
+++ b/net/sched/sch_api.c
@@ -458,7 +458,7 @@ EXPORT_SYMBOL(qdisc_warn_nonwc);
 static enum hrtimer_restart qdisc_watchdog(struct hrtimer *timer)
 {
 	struct qdisc_watchdog *wd = container_of(timer, struct qdisc_watchdog,
-						 timer);
+						 timer.timer);
 
 	wd->qdisc->flags &= ~TCQ_F_THROTTLED;
 	__netif_schedule(qdisc_root(wd->qdisc));
diff --git a/net/sched/sch_cbq.c b/net/sched/sch_cbq.c
index 81652d6ccd36..149b0405c5ec 100644
--- a/net/sched/sch_cbq.c
+++ b/net/sched/sch_cbq.c
@@ -593,7 +593,7 @@ static psched_tdiff_t cbq_undelay_prio(struct cbq_sched_data *q, int prio,
 static enum hrtimer_restart cbq_undelay(struct hrtimer *timer)
 {
 	struct cbq_sched_data *q = container_of(timer, struct cbq_sched_data,
-						delay_timer);
+						delay_timer.timer);
 	struct Qdisc *sch = q->watchdog.qdisc;
 	psched_time_t now;
 	psched_tdiff_t delay = 0;
diff --git a/sound/core/pcm_lib.c b/sound/core/pcm_lib.c
index 72cfd47af6b8..9db60d831bb2 100644
--- a/sound/core/pcm_lib.c
+++ b/sound/core/pcm_lib.c
@@ -943,47 +943,24 @@ static int snd_interval_ratden(struct snd_interval *i,
 int snd_interval_list(struct snd_interval *i, unsigned int count, unsigned int *list, unsigned int mask)
 {
         unsigned int k;
-	int changed = 0;
+	struct snd_interval list_range;
 
 	if (!count) {
 		i->empty = 1;
 		return -EINVAL;
 	}
+	snd_interval_any(&list_range);
+	list_range.min = UINT_MAX;
+	list_range.max = 0;
         for (k = 0; k < count; k++) {
 		if (mask && !(mask & (1 << k)))
 			continue;
-                if (i->min == list[k] && !i->openmin)
-                        goto _l1;
-                if (i->min < list[k]) {
-                        i->min = list[k];
-			i->openmin = 0;
-			changed = 1;
-                        goto _l1;
-                }
-        }
-        i->empty = 1;
-        return -EINVAL;
- _l1:
-        for (k = count; k-- > 0;) {
-		if (mask && !(mask & (1 << k)))
+		if (!snd_interval_test(i, list[k]))
 			continue;
-                if (i->max == list[k] && !i->openmax)
-                        goto _l2;
-                if (i->max > list[k]) {
-                        i->max = list[k];
-			i->openmax = 0;
-			changed = 1;
-                        goto _l2;
-                }
+		list_range.min = min(list_range.min, list[k]);
+		list_range.max = max(list_range.max, list[k]);
         }
-        i->empty = 1;
-        return -EINVAL;
- _l2:
-	if (snd_interval_checkempty(i)) {
-		i->empty = 1;
-		return -EINVAL;
-	}
-        return changed;
+	return snd_interval_refine(i, &list_range);
 }
 
 EXPORT_SYMBOL(snd_interval_list);
diff --git a/sound/pci/ali5451/ali5451.c b/sound/pci/ali5451/ali5451.c
index c551006e2920..76d76c08339b 100644
--- a/sound/pci/ali5451/ali5451.c
+++ b/sound/pci/ali5451/ali5451.c
@@ -310,12 +310,16 @@ static int snd_ali_codec_ready(struct snd_ali *codec,
 	unsigned int res;
 	
 	end_time = jiffies + msecs_to_jiffies(250);
-	do {
+
+	for (;;) {
 		res = snd_ali_5451_peek(codec,port);
 		if (!(res & 0x8000))
 			return 0;
+		if (!time_after_eq(end_time, jiffies))
+			break;
 		schedule_timeout_uninterruptible(1);
-	} while (time_after_eq(end_time, jiffies));
+	}
+
 	snd_ali_5451_poke(codec, port, res & ~0x8000);
 	snd_printdd("ali_codec_ready: codec is not ready.\n ");
 	return -EIO;
@@ -327,15 +331,17 @@ static int snd_ali_stimer_ready(struct snd_ali *codec)
 	unsigned long dwChk1,dwChk2;
 	
 	dwChk1 = snd_ali_5451_peek(codec, ALI_STIMER);
-	dwChk2 = snd_ali_5451_peek(codec, ALI_STIMER);
-
 	end_time = jiffies + msecs_to_jiffies(250);
-	do {
+
+	for (;;) {
 		dwChk2 = snd_ali_5451_peek(codec, ALI_STIMER);
 		if (dwChk2 != dwChk1)
 			return 0;
+		if (!time_after_eq(end_time, jiffies))
+			break;
 		schedule_timeout_uninterruptible(1);
-	} while (time_after_eq(end_time, jiffies));
+	}
+
 	snd_printk(KERN_ERR "ali_stimer_read: stimer is not ready.\n");
 	return -EIO;
 }
diff --git a/sound/pci/vx222/vx222_ops.c b/sound/pci/vx222/vx222_ops.c
index 6416d3f0c7be..a69e774d0b13 100644
--- a/sound/pci/vx222/vx222_ops.c
+++ b/sound/pci/vx222/vx222_ops.c
@@ -885,10 +885,10 @@ static int vx_input_level_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem
 	struct vx_core *_chip = snd_kcontrol_chip(kcontrol);
 	struct snd_vx222 *chip = (struct snd_vx222 *)_chip;
 	if (ucontrol->value.integer.value[0] < 0 ||
-	    ucontrol->value.integer.value[0] < MIC_LEVEL_MAX)
+	    ucontrol->value.integer.value[0] > MIC_LEVEL_MAX)
 		return -EINVAL;
 	if (ucontrol->value.integer.value[1] < 0 ||
-	    ucontrol->value.integer.value[1] < MIC_LEVEL_MAX)
+	    ucontrol->value.integer.value[1] > MIC_LEVEL_MAX)
 		return -EINVAL;
 	mutex_lock(&_chip->mixer_mutex);
 	if (chip->input_level[0] != ucontrol->value.integer.value[0] ||
diff --git a/tools/perf/builtin-annotate.c b/tools/perf/builtin-annotate.c
index 343e7b14bf01..5e17de984dc8 100644
--- a/tools/perf/builtin-annotate.c
+++ b/tools/perf/builtin-annotate.c
@@ -31,6 +31,7 @@ static char		*vmlinux = "vmlinux";
 static char		default_sort_order[] = "comm,symbol";
 static char		*sort_order = default_sort_order;
 
+static int		force;
 static int		input;
 static int		show_mask = SHOW_KERNEL | SHOW_USER | SHOW_HV;
 
@@ -1334,6 +1335,11 @@ static int __cmd_annotate(void)
 		exit(-1);
 	}
 
+	if (!force && (stat.st_uid != geteuid())) {
+		fprintf(stderr, "file: %s not owned by current user\n", input_name);
+		exit(-1);
+	}
+
 	if (!stat.st_size) {
 		fprintf(stderr, "zero-sized file, nothing to do!\n");
 		exit(0);
@@ -1439,6 +1445,7 @@ static const struct option options[] = {
 		    "input file name"),
 	OPT_STRING('s', "symbol", &sym_hist_filter, "symbol",
 		    "symbol to annotate"),
+	OPT_BOOLEAN('f', "force", &force, "don't complain, do it"),
 	OPT_BOOLEAN('v', "verbose", &verbose,
 		    "be more verbose (show symbol address, etc)"),
 	OPT_BOOLEAN('D', "dump-raw-trace", &dump_trace,
diff --git a/tools/perf/builtin-report.c b/tools/perf/builtin-report.c
index b53a60fc12de..8b2ec882e6e0 100644
--- a/tools/perf/builtin-report.c
+++ b/tools/perf/builtin-report.c
@@ -38,6 +38,7 @@ static char		*dso_list_str, *comm_list_str, *sym_list_str,
 static struct strlist	*dso_list, *comm_list, *sym_list;
 static char		*field_sep;
 
+static int		force;
 static int		input;
 static int		show_mask = SHOW_KERNEL | SHOW_USER | SHOW_HV;
 
@@ -1856,6 +1857,11 @@ static int __cmd_report(void)
 		exit(-1);
 	}
 
+	if (!force && (stat.st_uid != geteuid())) {
+		fprintf(stderr, "file: %s not owned by current user\n", input_name);
+		exit(-1);
+	}
+
 	if (!stat.st_size) {
 		fprintf(stderr, "zero-sized file, nothing to do!\n");
 		exit(0);
@@ -2064,6 +2070,7 @@ static const struct option options[] = {
 	OPT_BOOLEAN('D', "dump-raw-trace", &dump_trace,
 		    "dump raw trace in ASCII"),
 	OPT_STRING('k', "vmlinux", &vmlinux, "file", "vmlinux pathname"),
+	OPT_BOOLEAN('f', "force", &force, "don't complain, do it"),
 	OPT_BOOLEAN('m', "modules", &modules,
 		    "load module symbols - WARNING: use only with -k and LIVE kernel"),
 	OPT_BOOLEAN('n', "show-nr-samples", &show_nr_samples,