Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux

Resolved conflicts:
  fs/xfs/xfs_trans_priv.h:
    - deleted struct xfs_ail field xa_flags
    - kept field xa_log_flush in struct xfs_ail
  fs/xfs/xfs_trans_ail.c:
    - in xfsaild_push(), in XFS_ITEM_PUSHBUF case, replaced
      "flush_log = 1" with "ailp->xa_log_flush++"

Signed-off-by: Alex Elder <aelder@sgi.com>

101 files changed, 467 insertions, 334 deletions

diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt
index 854ed5ca7e3f..d6e6724446c8 100644
--- a/Documentation/kernel-parameters.txt
+++ b/Documentation/kernel-parameters.txt
@@ -2706,10 +2706,11 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
                         functions are at fixed addresses, they make nice
                         targets for exploits that can control RIP.
 
-                        emulate     [default] Vsyscalls turn into traps and are
-                                    emulated reasonably safely.
+                        emulate     Vsyscalls turn into traps and are emulated
+                                    reasonably safely.
 
-                        native      Vsyscalls are native syscall instructions.
+                        native      [default] Vsyscalls are native syscall
+                                    instructions.
                                     This is a little bit faster than trapping
                                     and makes a few dynamic recompilers work
                                     better than they would in emulation mode.
diff --git a/Documentation/networking/scaling.txt b/Documentation/networking/scaling.txt
index 8ce7c30e7230..fe67b5c79f0f 100644
--- a/Documentation/networking/scaling.txt
+++ b/Documentation/networking/scaling.txt
@@ -27,7 +27,7 @@ applying a filter to each packet that assigns it to one of a small number
 of logical flows. Packets for each flow are steered to a separate receive
 queue, which in turn can be processed by separate CPUs. This mechanism is
 generally known as “Receive-side Scaling” (RSS). The goal of RSS and
-the other scaling techniques to increase performance uniformly.
+the other scaling techniques is to increase performance uniformly.
 Multi-queue distribution can also be used for traffic prioritization, but
 that is not the focus of these techniques.
 
@@ -186,10 +186,10 @@ are steered using plain RPS. Multiple table entries may point to the
 same CPU. Indeed, with many flows and few CPUs, it is very likely that
 a single application thread handles flows with many different flow hashes.
 
-rps_sock_table is a global flow table that contains the *desired* CPU for
-flows: the CPU that is currently processing the flow in userspace. Each
-table value is a CPU index that is updated during calls to recvmsg and
-sendmsg (specifically, inet_recvmsg(), inet_sendmsg(), inet_sendpage()
+rps_sock_flow_table is a global flow table that contains the *desired* CPU
+for flows: the CPU that is currently processing the flow in userspace.
+Each table value is a CPU index that is updated during calls to recvmsg
+and sendmsg (specifically, inet_recvmsg(), inet_sendmsg(), inet_sendpage()
 and tcp_splice_read()).
 
 When the scheduler moves a thread to a new CPU while it has outstanding
diff --git a/MAINTAINERS b/MAINTAINERS
index ace8f9c81b96..5483e0c93b4b 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -6366,10 +6366,10 @@ F:	net/ipv4/tcp_lp.c
 
 TEGRA SUPPORT
 M:      Colin Cross <ccross@android.com>
-M:      Erik Gilling <konkers@android.com>
 M:      Olof Johansson <olof@lixom.net>
+M:      Stephen Warren <swarren@nvidia.com>
 L:      linux-tegra@vger.kernel.org
-T:      git git://android.git.kernel.org/kernel/tegra.git
+T:      git git://git.kernel.org/pub/scm/linux/kernel/git/olof/tegra.git
 S:      Supported
 F:      arch/arm/mach-tegra
 
diff --git a/arch/arm/common/vic.c b/arch/arm/common/vic.c
index 7aa4262ada7a..197f81c77351 100644
--- a/arch/arm/common/vic.c
+++ b/arch/arm/common/vic.c
@@ -259,7 +259,6 @@ static void __init vic_disable(void __iomem *base)
         writel(0, base + VIC_INT_SELECT);
         writel(0, base + VIC_INT_ENABLE);
         writel(~0, base + VIC_INT_ENABLE_CLEAR);
-        writel(0, base + VIC_IRQ_STATUS);
         writel(0, base + VIC_ITCR);
         writel(~0, base + VIC_INT_SOFT_CLEAR);
 }
diff --git a/arch/arm/include/asm/localtimer.h b/arch/arm/include/asm/localtimer.h
index 080d74f8128d..ff66638ff54d 100644
--- a/arch/arm/include/asm/localtimer.h
+++ b/arch/arm/include/asm/localtimer.h
@@ -10,6 +10,8 @@
 #ifndef __ASM_ARM_LOCALTIMER_H
 #define __ASM_ARM_LOCALTIMER_H
 
+#include <linux/errno.h>
+
 struct clock_event_device;
 
 /*
diff --git a/arch/arm/kernel/perf_event_v7.c b/arch/arm/kernel/perf_event_v7.c
index 4c851834f68e..6be3e2e4d838 100644
--- a/arch/arm/kernel/perf_event_v7.c
+++ b/arch/arm/kernel/perf_event_v7.c
@@ -321,8 +321,8 @@ static const unsigned armv7_a9_perf_map[PERF_COUNT_HW_MAX] = {
         [PERF_COUNT_HW_CPU_CYCLES]          = ARMV7_PERFCTR_CPU_CYCLES,
         [PERF_COUNT_HW_INSTRUCTIONS]        =
                                         ARMV7_PERFCTR_INST_OUT_OF_RENAME_STAGE,
-        [PERF_COUNT_HW_CACHE_REFERENCES]    = ARMV7_PERFCTR_COHERENT_LINE_HIT,
-        [PERF_COUNT_HW_CACHE_MISSES]        = ARMV7_PERFCTR_COHERENT_LINE_MISS,
+        [PERF_COUNT_HW_CACHE_REFERENCES]    = ARMV7_PERFCTR_DCACHE_ACCESS,
+        [PERF_COUNT_HW_CACHE_MISSES]        = ARMV7_PERFCTR_DCACHE_REFILL,
         [PERF_COUNT_HW_BRANCH_INSTRUCTIONS] = ARMV7_PERFCTR_PC_WRITE,
         [PERF_COUNT_HW_BRANCH_MISSES]       = ARMV7_PERFCTR_PC_BRANCH_MIS_PRED,
         [PERF_COUNT_HW_BUS_CYCLES]          = ARMV7_PERFCTR_CLOCK_CYCLES,
diff --git a/arch/arm/mach-omap2/board-2430sdp.c b/arch/arm/mach-omap2/board-2430sdp.c
index 2028464cf5b9..f79b7d2a8ed4 100644
--- a/arch/arm/mach-omap2/board-2430sdp.c
+++ b/arch/arm/mach-omap2/board-2430sdp.c
@@ -193,7 +193,8 @@ static int __init omap2430_i2c_init(void)
 {
         omap_register_i2c_bus(1, 100, sdp2430_i2c1_boardinfo,
                         ARRAY_SIZE(sdp2430_i2c1_boardinfo));
-        omap2_pmic_init("twl4030", &sdp2430_twldata);
+        omap_pmic_init(2, 100, "twl4030", INT_24XX_SYS_NIRQ,
+                        &sdp2430_twldata);
         return 0;
 }
 
diff --git a/arch/arm/mach-omap2/hsmmc.c b/arch/arm/mach-omap2/hsmmc.c
index a9b45c76e1d3..097a42d81e59 100644
--- a/arch/arm/mach-omap2/hsmmc.c
+++ b/arch/arm/mach-omap2/hsmmc.c
@@ -137,8 +137,7 @@ static void omap4_hsmmc1_before_set_reg(struct device *dev, int slot,
          */
         reg = omap4_ctrl_pad_readl(control_pbias_offset);
         reg &= ~(OMAP4_MMC1_PBIASLITE_PWRDNZ_MASK |
-                OMAP4_MMC1_PWRDNZ_MASK |
-                OMAP4_USBC1_ICUSB_PWRDNZ_MASK);
+                OMAP4_MMC1_PWRDNZ_MASK);
         omap4_ctrl_pad_writel(reg, control_pbias_offset);
 }
 
@@ -156,8 +155,7 @@ static void omap4_hsmmc1_after_set_reg(struct device *dev, int slot,
                 else
                         reg |= OMAP4_MMC1_PBIASLITE_VMODE_MASK;
                 reg |= (OMAP4_MMC1_PBIASLITE_PWRDNZ_MASK |
-                        OMAP4_MMC1_PWRDNZ_MASK |
-                        OMAP4_USBC1_ICUSB_PWRDNZ_MASK);
+                        OMAP4_MMC1_PWRDNZ_MASK);
                 omap4_ctrl_pad_writel(reg, control_pbias_offset);
 
                 timeout = jiffies + msecs_to_jiffies(5);
@@ -171,16 +169,14 @@ static void omap4_hsmmc1_after_set_reg(struct device *dev, int slot,
                 if (reg & OMAP4_MMC1_PBIASLITE_VMODE_ERROR_MASK) {
                         pr_err("Pbias Voltage is not same as LDO\n");
                         /* Caution : On VMODE_ERROR Power Down MMC IO */
-                        reg &= ~(OMAP4_MMC1_PWRDNZ_MASK |
-                                OMAP4_USBC1_ICUSB_PWRDNZ_MASK);
+                        reg &= ~(OMAP4_MMC1_PWRDNZ_MASK);
                         omap4_ctrl_pad_writel(reg, control_pbias_offset);
                 }
         } else {
                 reg = omap4_ctrl_pad_readl(control_pbias_offset);
                 reg |= (OMAP4_MMC1_PBIASLITE_PWRDNZ_MASK |
                         OMAP4_MMC1_PWRDNZ_MASK |
-                        OMAP4_MMC1_PBIASLITE_VMODE_MASK |
-                        OMAP4_USBC1_ICUSB_PWRDNZ_MASK);
+                        OMAP4_MMC1_PBIASLITE_VMODE_MASK);
                 omap4_ctrl_pad_writel(reg, control_pbias_offset);
         }
 }
diff --git a/arch/arm/mach-omap2/usb-musb.c b/arch/arm/mach-omap2/usb-musb.c
index a65145b02a55..19e4dac62a8c 100644
--- a/arch/arm/mach-omap2/usb-musb.c
+++ b/arch/arm/mach-omap2/usb-musb.c
@@ -137,9 +137,6 @@ void __init usb_musb_init(struct omap_musb_board_data *musb_board_data)
         musb_plat.mode = board_data->mode;
         musb_plat.extvbus = board_data->extvbus;
 
-        if (cpu_is_omap44xx())
-                omap4430_phy_init(dev);
-
         if (cpu_is_omap3517() || cpu_is_omap3505()) {
                 oh_name = "am35x_otg_hs";
                 name = "musb-am35x";
diff --git a/arch/arm/mach-tegra/cpu-tegra.c b/arch/arm/mach-tegra/cpu-tegra.c
index 0e1016a827ac..0e0fd4d889bd 100644
--- a/arch/arm/mach-tegra/cpu-tegra.c
+++ b/arch/arm/mach-tegra/cpu-tegra.c
@@ -32,7 +32,6 @@
 
 #include <asm/system.h>
 
-#include <mach/hardware.h>
 #include <mach/clk.h>
 
 /* Frequency table index must be sequential starting at 0 */
diff --git a/arch/arm/mach-ux500/Kconfig b/arch/arm/mach-ux500/Kconfig
index 4210cb434dbc..a3e0c8692f0d 100644
--- a/arch/arm/mach-ux500/Kconfig
+++ b/arch/arm/mach-ux500/Kconfig
@@ -6,6 +6,7 @@ config UX500_SOC_COMMON
         select ARM_GIC
         select HAS_MTU
         select ARM_ERRATA_753970
+        select ARM_ERRATA_754322
 
 menu "Ux500 SoC"
 
diff --git a/arch/arm/mm/init.c b/arch/arm/mm/init.c
index cc7e2d8be9aa..f8037ba338ac 100644
--- a/arch/arm/mm/init.c
+++ b/arch/arm/mm/init.c
@@ -496,6 +496,13 @@ static void __init free_unused_memmap(struct meminfo *mi)
                  */
                 bank_start = min(bank_start,
                                  ALIGN(prev_bank_end, PAGES_PER_SECTION));
+#else
+                /*
+                 * Align down here since the VM subsystem insists that the
+                 * memmap entries are valid from the bank start aligned to
+                 * MAX_ORDER_NR_PAGES.
+                 */
+                bank_start = round_down(bank_start, MAX_ORDER_NR_PAGES);
 #endif
                 /*
                  * If we had a previous bank, and there is a space
diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
index 177cdaf83564..b122adc8bdbb 100644
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -24,6 +24,7 @@ config MIPS
         select GENERIC_IRQ_PROBE
         select GENERIC_IRQ_SHOW
         select HAVE_ARCH_JUMP_LABEL
+        select IRQ_FORCED_THREADING
 
 menu "Machine selection"
 
@@ -722,6 +723,7 @@ config CAVIUM_OCTEON_SIMULATOR
         select SYS_SUPPORTS_HIGHMEM
         select SYS_SUPPORTS_HOTPLUG_CPU
         select SYS_HAS_CPU_CAVIUM_OCTEON
+        select HOLES_IN_ZONE
         help
           The Octeon simulator is software performance model of the Cavium
           Octeon Processor. It supports simulating Octeon processors on x86
@@ -744,6 +746,7 @@ config CAVIUM_OCTEON_REFERENCE_BOARD
         select ZONE_DMA32
         select USB_ARCH_HAS_OHCI
         select USB_ARCH_HAS_EHCI
+        select HOLES_IN_ZONE
         help
           This option supports all of the Octeon reference boards from Cavium
           Networks. It builds a kernel that dynamically determines the Octeon
@@ -973,6 +976,9 @@ config ISA_DMA_API
 config GENERIC_GPIO
         bool
 
+config HOLES_IN_ZONE
+        bool
+
 #
 # Endianess selection.  Sufficiently obscure so many users don't know what to
 # answer,so we try hard to limit the available choices.  Also the use of a
diff --git a/arch/mips/alchemy/common/platform.c b/arch/mips/alchemy/common/platform.c
index 3b2c18b14341..f72c48d4804c 100644
--- a/arch/mips/alchemy/common/platform.c
+++ b/arch/mips/alchemy/common/platform.c
@@ -492,7 +492,7 @@ static void __init alchemy_setup_macs(int ctype)
                 memcpy(au1xxx_eth0_platform_data.mac, ethaddr, 6);
 
         ret = platform_device_register(&au1xxx_eth0_device);
-        if (!ret)
+        if (ret)
                 printk(KERN_INFO "Alchemy: failed to register MAC0\n");
 
 
diff --git a/arch/mips/alchemy/common/power.c b/arch/mips/alchemy/common/power.c
index 647e518c90bc..b86324a42601 100644
--- a/arch/mips/alchemy/common/power.c
+++ b/arch/mips/alchemy/common/power.c
@@ -158,15 +158,21 @@ static void restore_core_regs(void)
 
 void au_sleep(void)
 {
-        int cpuid = alchemy_get_cputype();
-        if (cpuid != ALCHEMY_CPU_UNKNOWN) {
-                save_core_regs();
-                if (cpuid <= ALCHEMY_CPU_AU1500)
-                        alchemy_sleep_au1000();
-                else if (cpuid <= ALCHEMY_CPU_AU1200)
-                        alchemy_sleep_au1550();
-                restore_core_regs();
+        save_core_regs();
+
+        switch (alchemy_get_cputype()) {
+        case ALCHEMY_CPU_AU1000:
+        case ALCHEMY_CPU_AU1500:
+        case ALCHEMY_CPU_AU1100:
+                alchemy_sleep_au1000();
+                break;
+        case ALCHEMY_CPU_AU1550:
+        case ALCHEMY_CPU_AU1200:
+                alchemy_sleep_au1550();
+                break;
         }
+
+        restore_core_regs();
 }
 
 #endif  /* CONFIG_PM */
diff --git a/arch/mips/alchemy/devboards/bcsr.c b/arch/mips/alchemy/devboards/bcsr.c
index 596ad00e7f05..463d2c4d9441 100644
--- a/arch/mips/alchemy/devboards/bcsr.c
+++ b/arch/mips/alchemy/devboards/bcsr.c
@@ -89,8 +89,12 @@ static void bcsr_csc_handler(unsigned int irq, struct irq_desc *d)
 {
         unsigned short bisr = __raw_readw(bcsr_virt + BCSR_REG_INTSTAT);
 
+        disable_irq_nosync(irq);
+
         for ( ; bisr; bisr &= bisr - 1)
                 generic_handle_irq(bcsr_csc_base + __ffs(bisr));
+
+        enable_irq(irq);
 }
 
 /* NOTE: both the enable and mask bits must be cleared, otherwise the
diff --git a/arch/mips/alchemy/devboards/db1200/setup.c b/arch/mips/alchemy/devboards/db1200/setup.c
index 1dac4f27d334..4a8980027ecf 100644
--- a/arch/mips/alchemy/devboards/db1200/setup.c
+++ b/arch/mips/alchemy/devboards/db1200/setup.c
@@ -23,13 +23,6 @@ void __init board_setup(void)
         unsigned long freq0, clksrc, div, pfc;
         unsigned short whoami;
 
-        /* Set Config[OD] (disable overlapping bus transaction):
-         * This gets rid of a _lot_ of spurious interrupts (especially
-         * wrt. IDE); but incurs ~10% performance hit in some
-         * cpu-bound applications.
-         */
-        set_c0_config(1 << 19);
-
         bcsr_init(DB1200_BCSR_PHYS_ADDR,
                   DB1200_BCSR_PHYS_ADDR + DB1200_BCSR_HEXLED_OFS);
 
diff --git a/arch/mips/ar7/irq.c b/arch/mips/ar7/irq.c
index 03db3daadbd8..88c4babfdb5d 100644
--- a/arch/mips/ar7/irq.c
+++ b/arch/mips/ar7/irq.c
@@ -98,7 +98,8 @@ static struct irq_chip ar7_sec_irq_type = {
 
 static struct irqaction ar7_cascade_action = {
         .handler = no_action,
-        .name = "AR7 cascade interrupt"
+        .name = "AR7 cascade interrupt",
+        .flags = IRQF_NO_THREAD,
 };
 
 static void __init ar7_irq_init(int base)
diff --git a/arch/mips/bcm63xx/irq.c b/arch/mips/bcm63xx/irq.c
index cea6021cb8d7..162e11b4ed75 100644
--- a/arch/mips/bcm63xx/irq.c
+++ b/arch/mips/bcm63xx/irq.c
@@ -222,6 +222,7 @@ static struct irq_chip bcm63xx_external_irq_chip = {
 static struct irqaction cpu_ip2_cascade_action = {
         .handler        = no_action,
         .name           = "cascade_ip2",
+        .flags          = IRQF_NO_THREAD,
 };
 
 void __init arch_init_irq(void)
diff --git a/arch/mips/cobalt/irq.c b/arch/mips/cobalt/irq.c
index cb9bf820fe53..965c777d3561 100644
--- a/arch/mips/cobalt/irq.c
+++ b/arch/mips/cobalt/irq.c
@@ -48,6 +48,7 @@ asmlinkage void plat_irq_dispatch(void)
 static struct irqaction cascade = {
         .handler        = no_action,
         .name           = "cascade",
+        .flags          = IRQF_NO_THREAD,
 };
 
 void __init arch_init_irq(void)
diff --git a/arch/mips/dec/setup.c b/arch/mips/dec/setup.c
index fa45e924be05..f7b7ba6d5c45 100644
--- a/arch/mips/dec/setup.c
+++ b/arch/mips/dec/setup.c
@@ -101,20 +101,24 @@ int cpu_fpu_mask = DEC_CPU_IRQ_MASK(DEC_CPU_INR_FPU);
 static struct irqaction ioirq = {
         .handler = no_action,
         .name = "cascade",
+        .flags = IRQF_NO_THREAD,
 };
 static struct irqaction fpuirq = {
         .handler = no_action,
         .name = "fpu",
+        .flags = IRQF_NO_THREAD,
 };
 
 static struct irqaction busirq = {
         .flags = IRQF_DISABLED,
         .name = "bus error",
+        .flags = IRQF_NO_THREAD,
 };
 
 static struct irqaction haltirq = {
         .handler = dec_intr_halt,
         .name = "halt",
+        .flags = IRQF_NO_THREAD,
 };
 
 
diff --git a/arch/mips/emma/markeins/irq.c b/arch/mips/emma/markeins/irq.c
index 3dbd7a5a6ad3..7798887a1288 100644
--- a/arch/mips/emma/markeins/irq.c
+++ b/arch/mips/emma/markeins/irq.c
@@ -169,7 +169,7 @@ void emma2rh_gpio_irq_init(void)
 
 static struct irqaction irq_cascade = {
            .handler = no_action,
-           .flags = 0,
+           .flags = IRQF_NO_THREAD,
            .name = "cascade",
            .dev_id = NULL,
            .next = NULL,
diff --git a/arch/mips/include/asm/mach-cavium-octeon/cpu-feature-overrides.h b/arch/mips/include/asm/mach-cavium-octeon/cpu-feature-overrides.h
index 0d5a42b5f47a..a58addb98cfd 100644
--- a/arch/mips/include/asm/mach-cavium-octeon/cpu-feature-overrides.h
+++ b/arch/mips/include/asm/mach-cavium-octeon/cpu-feature-overrides.h
@@ -54,7 +54,6 @@
 #define cpu_has_mips_r2_exec_hazard 0
 #define cpu_has_dsp             0
 #define cpu_has_mipsmt          0
-#define cpu_has_userlocal       0
 #define cpu_has_vint            0
 #define cpu_has_veic            0
 #define cpu_hwrena_impl_bits    0xc0000000
diff --git a/arch/mips/include/asm/mach-powertv/dma-coherence.h b/arch/mips/include/asm/mach-powertv/dma-coherence.h
index 62c094085947..35371641575d 100644
--- a/arch/mips/include/asm/mach-powertv/dma-coherence.h
+++ b/arch/mips/include/asm/mach-powertv/dma-coherence.h
@@ -13,7 +13,6 @@
 #define __ASM_MACH_POWERTV_DMA_COHERENCE_H
 
 #include <linux/sched.h>
-#include <linux/version.h>
 #include <linux/device.h>
 #include <asm/mach-powertv/asic.h>
 
diff --git a/arch/mips/include/asm/stackframe.h b/arch/mips/include/asm/stackframe.h
index b4ba2449444b..cb41af5f3406 100644
--- a/arch/mips/include/asm/stackframe.h
+++ b/arch/mips/include/asm/stackframe.h
@@ -195,9 +195,9 @@
                  * to cover the pipeline delay.
                  */
                 .set    mips32
-                mfc0    v1, CP0_TCSTATUS
+                mfc0    k0, CP0_TCSTATUS
                 .set    mips0
-                LONG_S  v1, PT_TCSTATUS(sp)
+                LONG_S  k0, PT_TCSTATUS(sp)
 #endif /* CONFIG_MIPS_MT_SMTC */
                 LONG_S  $4, PT_R4(sp)
                 LONG_S  $5, PT_R5(sp)
diff --git a/arch/mips/jz4740/gpio.c b/arch/mips/jz4740/gpio.c
index 73031f7fc827..4397972949fa 100644
--- a/arch/mips/jz4740/gpio.c
+++ b/arch/mips/jz4740/gpio.c
@@ -18,7 +18,7 @@
 #include <linux/init.h>
 
 #include <linux/spinlock.h>
-#include <linux/sysdev.h>
+#include <linux/syscore_ops.h>
 #include <linux/io.h>
 #include <linux/gpio.h>
 #include <linux/delay.h>
@@ -86,7 +86,6 @@ struct jz_gpio_chip {
         spinlock_t lock;
 
         struct gpio_chip gpio_chip;
-        struct sys_device sysdev;
 };
 
 static struct jz_gpio_chip jz4740_gpio_chips[];
@@ -459,49 +458,47 @@ static struct jz_gpio_chip jz4740_gpio_chips[] = {
         JZ4740_GPIO_CHIP(D),
 };
 
-static inline struct jz_gpio_chip *sysdev_to_chip(struct sys_device *dev)
+static void jz4740_gpio_suspend_chip(struct jz_gpio_chip *chip)
 {
-        return container_of(dev, struct jz_gpio_chip, sysdev);
+        chip->suspend_mask = readl(chip->base + JZ_REG_GPIO_MASK);
+        writel(~(chip->wakeup), chip->base + JZ_REG_GPIO_MASK_SET);
+        writel(chip->wakeup, chip->base + JZ_REG_GPIO_MASK_CLEAR);
 }
 
-static int jz4740_gpio_suspend(struct sys_device *dev, pm_message_t state)
+static int jz4740_gpio_suspend(void)
 {
-        struct jz_gpio_chip *chip = sysdev_to_chip(dev);
+        int i;
 
-        chip->suspend_mask = readl(chip->base + JZ_REG_GPIO_MASK);
-        writel(~(chip->wakeup), chip->base + JZ_REG_GPIO_MASK_SET);
-        writel(chip->wakeup, chip->base + JZ_REG_GPIO_MASK_CLEAR);
+        for (i = 0; i < ARRAY_SIZE(jz4740_gpio_chips); i++)
+                jz4740_gpio_suspend_chip(&jz4740_gpio_chips[i]);
 
         return 0;
 }
 
-static int jz4740_gpio_resume(struct sys_device *dev)
+static void jz4740_gpio_resume_chip(struct jz_gpio_chip *chip)
 {
-        struct jz_gpio_chip *chip = sysdev_to_chip(dev);
         uint32_t mask = chip->suspend_mask;
 
         writel(~mask, chip->base + JZ_REG_GPIO_MASK_CLEAR);
         writel(mask, chip->base + JZ_REG_GPIO_MASK_SET);
+}
 
-        return 0;
+static void jz4740_gpio_resume(void)
+{
+        int i;
+
+        for (i = ARRAY_SIZE(jz4740_gpio_chips) - 1; i >= 0 ; i--)
+                jz4740_gpio_resume_chip(&jz4740_gpio_chips[i]);
 }
 
-static struct sysdev_class jz4740_gpio_sysdev_class = {
-        .name = "gpio",
+static struct syscore_ops jz4740_gpio_syscore_ops = {
         .suspend = jz4740_gpio_suspend,
         .resume = jz4740_gpio_resume,
 };
 
-static int jz4740_gpio_chip_init(struct jz_gpio_chip *chip, unsigned int id)
+static void jz4740_gpio_chip_init(struct jz_gpio_chip *chip, unsigned int id)
 {
-        int ret, irq;
-
-        chip->sysdev.id = id;
-        chip->sysdev.cls = &jz4740_gpio_sysdev_class;
-        ret = sysdev_register(&chip->sysdev);
-
-        if (ret)
-                return ret;
+        int irq;
 
         spin_lock_init(&chip->lock);
 
@@ -519,22 +516,17 @@ static int jz4740_gpio_chip_init(struct jz_gpio_chip *chip, unsigned int id)
                 irq_set_chip_and_handler(irq, &jz_gpio_irq_chip,
                                          handle_level_irq);
         }
-
-        return 0;
 }
 
 static int __init jz4740_gpio_init(void)
 {
         unsigned int i;
-        int ret;
-
-        ret = sysdev_class_register(&jz4740_gpio_sysdev_class);
-        if (ret)
-                return ret;
 
         for (i = 0; i < ARRAY_SIZE(jz4740_gpio_chips); ++i)
                 jz4740_gpio_chip_init(&jz4740_gpio_chips[i], i);
 
+        register_syscore_ops(&jz4740_gpio_syscore_ops);
+
         printk(KERN_INFO "JZ4740 GPIO initialized\n");
 
         return 0;
diff --git a/arch/mips/kernel/ftrace.c b/arch/mips/kernel/ftrace.c
index feb8021a305f..6a2d758dd8e9 100644
--- a/arch/mips/kernel/ftrace.c
+++ b/arch/mips/kernel/ftrace.c
@@ -19,6 +19,26 @@
 
 #include <asm-generic/sections.h>
 
+#if defined(KBUILD_MCOUNT_RA_ADDRESS) && defined(CONFIG_32BIT)
+#define MCOUNT_OFFSET_INSNS 5
+#else
+#define MCOUNT_OFFSET_INSNS 4
+#endif
+
+/*
+ * Check if the address is in kernel space
+ *
+ * Clone core_kernel_text() from kernel/extable.c, but doesn't call
+ * init_kernel_text() for Ftrace doesn't trace functions in init sections.
+ */
+static inline int in_kernel_space(unsigned long ip)
+{
+        if (ip >= (unsigned long)_stext &&
+            ip <= (unsigned long)_etext)
+                return 1;
+        return 0;
+}
+
 #ifdef CONFIG_DYNAMIC_FTRACE
 
 #define JAL 0x0c000000          /* jump & link: ip --> ra, jump to target */
@@ -54,20 +74,6 @@ static inline void ftrace_dyn_arch_init_insns(void)
 #endif
 }
 
-/*
- * Check if the address is in kernel space
- *
- * Clone core_kernel_text() from kernel/extable.c, but doesn't call
- * init_kernel_text() for Ftrace doesn't trace functions in init sections.
- */
-static inline int in_kernel_space(unsigned long ip)
-{
-        if (ip >= (unsigned long)_stext &&
-            ip <= (unsigned long)_etext)
-                return 1;
-        return 0;
-}
-
 static int ftrace_modify_code(unsigned long ip, unsigned int new_code)
 {
         int faulted;
@@ -112,11 +118,6 @@ static int ftrace_modify_code(unsigned long ip, unsigned int new_code)
  *                                  1: offset = 4 instructions
  */
 
-#if defined(KBUILD_MCOUNT_RA_ADDRESS) && defined(CONFIG_32BIT)
-#define MCOUNT_OFFSET_INSNS 5
-#else
-#define MCOUNT_OFFSET_INSNS 4
-#endif
 #define INSN_B_1F (0x10000000 | MCOUNT_OFFSET_INSNS)
 
 int ftrace_make_nop(struct module *mod,
diff --git a/arch/mips/kernel/i8259.c b/arch/mips/kernel/i8259.c
index 5c74eb797f08..32b397b646ee 100644
--- a/arch/mips/kernel/i8259.c
+++ b/arch/mips/kernel/i8259.c
@@ -229,7 +229,7 @@ static void i8259A_shutdown(void)
          */
         if (i8259A_auto_eoi >= 0) {
                 outb(0xff, PIC_MASTER_IMR);     /* mask all of 8259A-1 */
-                outb(0xff, PIC_SLAVE_IMR);      /* mask all of 8259A-1 */
+                outb(0xff, PIC_SLAVE_IMR);      /* mask all of 8259A-2 */
         }
 }
 
@@ -295,6 +295,7 @@ static void init_8259A(int auto_eoi)
 static struct irqaction irq2 = {
         .handler = no_action,
         .name = "cascade",
+        .flags = IRQF_NO_THREAD,
 };
 
 static struct resource pic1_io_resource = {
diff --git a/arch/mips/kernel/linux32.c b/arch/mips/kernel/linux32.c
index 876a75cc376f..922a554cd108 100644
--- a/arch/mips/kernel/linux32.c
+++ b/arch/mips/kernel/linux32.c
@@ -349,3 +349,10 @@ SYSCALL_DEFINE6(32_fanotify_mark, int, fanotify_fd, unsigned int, flags,
         return sys_fanotify_mark(fanotify_fd, flags, merge_64(a3, a4),
                                  dfd, pathname);
 }
+
+SYSCALL_DEFINE6(32_futex, u32 __user *, uaddr, int, op, u32, val,
+                struct compat_timespec __user *, utime, u32 __user *, uaddr2,
+                u32, val3)
+{
+        return compat_sys_futex(uaddr, op, val, utime, uaddr2, val3);
+}
diff --git a/arch/mips/kernel/scall64-n32.S b/arch/mips/kernel/scall64-n32.S
index f9296e894e46..6de1f598346e 100644
--- a/arch/mips/kernel/scall64-n32.S
+++ b/arch/mips/kernel/scall64-n32.S
@@ -315,7 +315,7 @@ EXPORT(sysn32_call_table)
         PTR     sys_fremovexattr
         PTR     sys_tkill
         PTR     sys_ni_syscall
-        PTR     compat_sys_futex
+        PTR     sys_32_futex
         PTR     compat_sys_sched_setaffinity    /* 6195 */
         PTR     compat_sys_sched_getaffinity
         PTR     sys_cacheflush
diff --git a/arch/mips/kernel/scall64-o32.S b/arch/mips/kernel/scall64-o32.S
index 4d7c9827706f..1d813169e453 100644
--- a/arch/mips/kernel/scall64-o32.S
+++ b/arch/mips/kernel/scall64-o32.S
@@ -441,7 +441,7 @@ sys_call_table:
         PTR     sys_fremovexattr                /* 4235 */
         PTR     sys_tkill
         PTR     sys_sendfile64
-        PTR     compat_sys_futex
+        PTR     sys_32_futex
         PTR     compat_sys_sched_setaffinity
         PTR     compat_sys_sched_getaffinity    /* 4240 */
         PTR     compat_sys_io_setup
diff --git a/arch/mips/kernel/signal.c b/arch/mips/kernel/signal.c
index dbbe0ce48d89..f8524003676a 100644
--- a/arch/mips/kernel/signal.c
+++ b/arch/mips/kernel/signal.c
@@ -8,6 +8,7 @@
  * Copyright (C) 1999, 2000 Silicon Graphics, Inc.
  */
 #include <linux/cache.h>
+#include <linux/irqflags.h>
 #include <linux/sched.h>
 #include <linux/mm.h>
 #include <linux/personality.h>
@@ -658,6 +659,8 @@ static void do_signal(struct pt_regs *regs)
 asmlinkage void do_notify_resume(struct pt_regs *regs, void *unused,
         __u32 thread_info_flags)
 {
+        local_irq_enable();
+
         /* deal with pending signal delivery */
         if (thread_info_flags & (_TIF_SIGPENDING | _TIF_RESTORE_SIGMASK))
                 do_signal(regs);
diff --git a/arch/mips/kernel/traps.c b/arch/mips/kernel/traps.c
index b7517e3abc85..cbea618af0b4 100644
--- a/arch/mips/kernel/traps.c
+++ b/arch/mips/kernel/traps.c
@@ -14,6 +14,7 @@
 #include <linux/bug.h>
 #include <linux/compiler.h>
 #include <linux/init.h>
+#include <linux/kernel.h>
 #include <linux/mm.h>
 #include <linux/module.h>
 #include <linux/sched.h>
@@ -364,21 +365,26 @@ static int regs_to_trapnr(struct pt_regs *regs)
         return (regs->cp0_cause >> 2) & 0x1f;
 }
 
-static DEFINE_SPINLOCK(die_lock);
+static DEFINE_RAW_SPINLOCK(die_lock);
 
 void __noreturn die(const char *str, struct pt_regs *regs)
 {
         static int die_counter;
         int sig = SIGSEGV;
 #ifdef CONFIG_MIPS_MT_SMTC
-        unsigned long dvpret = dvpe();
+        unsigned long dvpret;
 #endif /* CONFIG_MIPS_MT_SMTC */
 
+        oops_enter();
+
         if (notify_die(DIE_OOPS, str, regs, 0, regs_to_trapnr(regs), SIGSEGV) == NOTIFY_STOP)
                 sig = 0;
 
         console_verbose();
-        spin_lock_irq(&die_lock);
+        raw_spin_lock_irq(&die_lock);
+#ifdef CONFIG_MIPS_MT_SMTC
+        dvpret = dvpe();
+#endif /* CONFIG_MIPS_MT_SMTC */
         bust_spinlocks(1);
 #ifdef CONFIG_MIPS_MT_SMTC
         mips_mt_regdump(dvpret);
@@ -387,7 +393,9 @@ void __noreturn die(const char *str, struct pt_regs *regs)
         printk("%s[#%d]:\n", str, ++die_counter);
         show_registers(regs);
         add_taint(TAINT_DIE);
-        spin_unlock_irq(&die_lock);
+        raw_spin_unlock_irq(&die_lock);
+
+        oops_exit();
 
         if (in_interrupt())
                 panic("Fatal exception in interrupt");
diff --git a/arch/mips/kernel/vpe.c b/arch/mips/kernel/vpe.c
index 2cd50ad0d5c6..3efcb065f78a 100644
--- a/arch/mips/kernel/vpe.c
+++ b/arch/mips/kernel/vpe.c
@@ -192,7 +192,7 @@ static struct tc *get_tc(int index)
         }
         spin_unlock(&vpecontrol.tc_list_lock);
 
-        return NULL;
+        return res;
 }
 
 /* allocate a vpe and associate it with this minor (or index) */
diff --git a/arch/mips/lantiq/irq.c b/arch/mips/lantiq/irq.c
index fc89795cafdb..f9737bb3c5ab 100644
--- a/arch/mips/lantiq/irq.c
+++ b/arch/mips/lantiq/irq.c
@@ -123,11 +123,10 @@ void ltq_enable_irq(struct irq_data *d)
 static unsigned int ltq_startup_eiu_irq(struct irq_data *d)
 {
         int i;
-        int irq_nr = d->irq - INT_NUM_IRQ0;
 
         ltq_enable_irq(d);
         for (i = 0; i < MAX_EIU; i++) {
-                if (irq_nr == ltq_eiu_irq[i]) {
+                if (d->irq == ltq_eiu_irq[i]) {
                         /* low level - we should really handle set_type */
                         ltq_eiu_w32(ltq_eiu_r32(LTQ_EIU_EXIN_C) |
                                 (0x6 << (i * 4)), LTQ_EIU_EXIN_C);
@@ -147,11 +146,10 @@ static unsigned int ltq_startup_eiu_irq(struct irq_data *d)
 static void ltq_shutdown_eiu_irq(struct irq_data *d)
 {
         int i;
-        int irq_nr = d->irq - INT_NUM_IRQ0;
 
         ltq_disable_irq(d);
         for (i = 0; i < MAX_EIU; i++) {
-                if (irq_nr == ltq_eiu_irq[i]) {
+                if (d->irq == ltq_eiu_irq[i]) {
                         /* disable */
                         ltq_eiu_w32(ltq_eiu_r32(LTQ_EIU_EXIN_INEN) & ~(1 << i),
                                 LTQ_EIU_EXIN_INEN);
diff --git a/arch/mips/lantiq/xway/ebu.c b/arch/mips/lantiq/xway/ebu.c
index 66eb52fa50a1..033b3184c7a7 100644
--- a/arch/mips/lantiq/xway/ebu.c
+++ b/arch/mips/lantiq/xway/ebu.c
@@ -10,7 +10,6 @@
 
 #include <linux/kernel.h>
 #include <linux/module.h>
-#include <linux/version.h>
 #include <linux/ioport.h>
 
 #include <lantiq_soc.h>
diff --git a/arch/mips/lantiq/xway/pmu.c b/arch/mips/lantiq/xway/pmu.c
index 9d69f01e352b..39f0d2641cbf 100644
--- a/arch/mips/lantiq/xway/pmu.c
+++ b/arch/mips/lantiq/xway/pmu.c
@@ -8,7 +8,6 @@
 
 #include <linux/kernel.h>
 #include <linux/module.h>
-#include <linux/version.h>
 #include <linux/ioport.h>
 
 #include <lantiq_soc.h>
diff --git a/arch/mips/lasat/interrupt.c b/arch/mips/lasat/interrupt.c
index de4c165515d7..d608b6ef0edd 100644
--- a/arch/mips/lasat/interrupt.c
+++ b/arch/mips/lasat/interrupt.c
@@ -105,6 +105,7 @@ asmlinkage void plat_irq_dispatch(void)
 static struct irqaction cascade = {
         .handler        = no_action,
         .name           = "cascade",
+        .flags          = IRQF_NO_THREAD,
 };
 
 void __init arch_init_irq(void)
diff --git a/arch/mips/loongson/fuloong-2e/irq.c b/arch/mips/loongson/fuloong-2e/irq.c
index d61a04222b87..3cf1fef29f0e 100644
--- a/arch/mips/loongson/fuloong-2e/irq.c
+++ b/arch/mips/loongson/fuloong-2e/irq.c
@@ -42,6 +42,7 @@ asmlinkage void mach_irq_dispatch(unsigned int pending)
 static struct irqaction cascade_irqaction = {
         .handler = no_action,
         .name = "cascade",
+        .flags = IRQF_NO_THREAD,
 };
 
 void __init mach_init_irq(void)
diff --git a/arch/mips/loongson/lemote-2f/irq.c b/arch/mips/loongson/lemote-2f/irq.c
index 081db102bb98..14b081841b6b 100644
--- a/arch/mips/loongson/lemote-2f/irq.c
+++ b/arch/mips/loongson/lemote-2f/irq.c
@@ -96,12 +96,13 @@ static irqreturn_t ip6_action(int cpl, void *dev_id)
 struct irqaction ip6_irqaction = {
         .handler = ip6_action,
         .name = "cascade",
-        .flags = IRQF_SHARED,
+        .flags = IRQF_SHARED | IRQF_NO_THREAD,
 };
 
 struct irqaction cascade_irqaction = {
         .handler = no_action,
         .name = "cascade",
+        .flags = IRQF_NO_THREAD,
 };
 
 void __init mach_init_irq(void)
diff --git a/arch/mips/mm/mmap.c b/arch/mips/mm/mmap.c
index 9ff5d0fac556..302d779d5b0d 100644
--- a/arch/mips/mm/mmap.c
+++ b/arch/mips/mm/mmap.c
@@ -6,6 +6,7 @@
  * Copyright (C) 2011 Wind River Systems,
  *   written by Ralf Baechle <ralf@linux-mips.org>
  */
+#include <linux/compiler.h>
 #include <linux/errno.h>
 #include <linux/mm.h>
 #include <linux/mman.h>
@@ -15,12 +16,11 @@
 #include <linux/sched.h>
 
 unsigned long shm_align_mask = PAGE_SIZE - 1;   /* Sane caches */
-
 EXPORT_SYMBOL(shm_align_mask);
 
 /* gap between mmap and stack */
 #define MIN_GAP (128*1024*1024UL)
-#define MAX_GAP        ((TASK_SIZE)/6*5)
+#define MAX_GAP ((TASK_SIZE)/6*5)
 
 static int mmap_is_legacy(void)
 {
@@ -57,13 +57,13 @@ static inline unsigned long COLOUR_ALIGN_DOWN(unsigned long addr,
         return base - off;
 }
 
-#define COLOUR_ALIGN(addr,pgoff)                                \
+#define COLOUR_ALIGN(addr, pgoff)                               \
         ((((addr) + shm_align_mask) & ~shm_align_mask) +        \
          (((pgoff) << PAGE_SHIFT) & shm_align_mask))
 
 enum mmap_allocation_direction {UP, DOWN};
 
-static unsigned long arch_get_unmapped_area_foo(struct file *filp,
+static unsigned long arch_get_unmapped_area_common(struct file *filp,
         unsigned long addr0, unsigned long len, unsigned long pgoff,
         unsigned long flags, enum mmap_allocation_direction dir)
 {
@@ -103,16 +103,16 @@ static unsigned long arch_get_unmapped_area_foo(struct file *filp,
 
                 vma = find_vma(mm, addr);
                 if (TASK_SIZE - len >= addr &&
-                   (!vma || addr + len <= vma->vm_start))
+                    (!vma || addr + len <= vma->vm_start))
                         return addr;
         }
 
         if (dir == UP) {
                 addr = mm->mmap_base;
-                        if (do_color_align)
-                                addr = COLOUR_ALIGN(addr, pgoff);
-                        else
-                                addr = PAGE_ALIGN(addr);
+                if (do_color_align)
+                        addr = COLOUR_ALIGN(addr, pgoff);
+                else
+                        addr = PAGE_ALIGN(addr);
 
                 for (vma = find_vma(current->mm, addr); ; vma = vma->vm_next) {
                         /* At this point:  (!vma || addr < vma->vm_end). */
@@ -131,28 +131,30 @@ static unsigned long arch_get_unmapped_area_foo(struct file *filp,
                         mm->free_area_cache = mm->mmap_base;
                 }
 
-                /* either no address requested or can't fit in requested address hole */
+                /*
+                 * either no address requested, or the mapping can't fit into
+                 * the requested address hole
+                 */
                 addr = mm->free_area_cache;
-                        if (do_color_align) {
-                                unsigned long base =
-                                        COLOUR_ALIGN_DOWN(addr - len, pgoff);
-
+                if (do_color_align) {
+                        unsigned long base =
+                                COLOUR_ALIGN_DOWN(addr - len, pgoff);
                         addr = base + len;
-                 }
+                }
 
                 /* make sure it can fit in the remaining address space */
                 if (likely(addr > len)) {
                         vma = find_vma(mm, addr - len);
                         if (!vma || addr <= vma->vm_start) {
-                                /* remember the address as a hint for next time */
-                                return mm->free_area_cache = addr-len;
+                                /* cache the address as a hint for next time */
+                                return mm->free_area_cache = addr - len;
                         }
                 }
 
                 if (unlikely(mm->mmap_base < len))
                         goto bottomup;
 
-                addr = mm->mmap_base-len;
+                addr = mm->mmap_base - len;
                 if (do_color_align)
                         addr = COLOUR_ALIGN_DOWN(addr, pgoff);
 
@@ -163,8 +165,8 @@ static unsigned long arch_get_unmapped_area_foo(struct file *filp,
                          * return with success:
                          */
                         vma = find_vma(mm, addr);
-                        if (likely(!vma || addr+len <= vma->vm_start)) {
-                                /* remember the address as a hint for next time */
+                        if (likely(!vma || addr + len <= vma->vm_start)) {
+                                /* cache the address as a hint for next time */
                                 return mm->free_area_cache = addr;
                         }
 
@@ -173,7 +175,7 @@ static unsigned long arch_get_unmapped_area_foo(struct file *filp,
                                 mm->cached_hole_size = vma->vm_start - addr;
 
                         /* try just below the current vma->vm_start */
-                        addr = vma->vm_start-len;
+                        addr = vma->vm_start - len;
                         if (do_color_align)
                                 addr = COLOUR_ALIGN_DOWN(addr, pgoff);
                 } while (likely(len < vma->vm_start));
@@ -201,7 +203,7 @@ bottomup:
 unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr0,
         unsigned long len, unsigned long pgoff, unsigned long flags)
 {
-        return arch_get_unmapped_area_foo(filp,
+        return arch_get_unmapped_area_common(filp,
                         addr0, len, pgoff, flags, UP);
 }
 
@@ -213,7 +215,7 @@ unsigned long arch_get_unmapped_area_topdown(struct file *filp,
         unsigned long addr0, unsigned long len, unsigned long pgoff,
         unsigned long flags)
 {
-        return arch_get_unmapped_area_foo(filp,
+        return arch_get_unmapped_area_common(filp,
                         addr0, len, pgoff, flags, DOWN);
 }
 
diff --git a/arch/mips/mm/tlbex.c b/arch/mips/mm/tlbex.c
index b6e1cff50667..e06370f58ef3 100644
--- a/arch/mips/mm/tlbex.c
+++ b/arch/mips/mm/tlbex.c
@@ -1759,14 +1759,13 @@ static void __cpuinit build_r3000_tlb_modify_handler(void)
         u32 *p = handle_tlbm;
         struct uasm_label *l = labels;
         struct uasm_reloc *r = relocs;
-        struct work_registers wr;
 
         memset(handle_tlbm, 0, sizeof(handle_tlbm));
         memset(labels, 0, sizeof(labels));
         memset(relocs, 0, sizeof(relocs));
 
         build_r3000_tlbchange_handler_head(&p, K0, K1);
-        build_pte_modifiable(&p, &r, wr.r1, wr.r2,  wr.r3, label_nopage_tlbm);
+        build_pte_modifiable(&p, &r, K0, K1,  -1, label_nopage_tlbm);
         uasm_i_nop(&p); /* load delay */
         build_make_write(&p, &r, K0, K1);
         build_r3000_pte_reload_tlbwi(&p, K0, K1);
@@ -1963,7 +1962,8 @@ static void __cpuinit build_r4000_tlb_load_handler(void)
                         uasm_i_andi(&p, wr.r3, wr.r3, 2);
                         uasm_il_beqz(&p, &r, wr.r3, label_tlbl_goaround2);
                 }
-
+                if (PM_DEFAULT_MASK == 0)
+                        uasm_i_nop(&p);
                 /*
                  * We clobbered C0_PAGEMASK, restore it.  On the other branch
                  * it is restored in build_huge_tlb_write_entry.
diff --git a/arch/mips/mti-malta/malta-int.c b/arch/mips/mti-malta/malta-int.c
index 1d36c511a7a5..d53ff91b277c 100644
--- a/arch/mips/mti-malta/malta-int.c
+++ b/arch/mips/mti-malta/malta-int.c
@@ -350,12 +350,14 @@ unsigned int plat_ipi_resched_int_xlate(unsigned int cpu)
 
 static struct irqaction i8259irq = {
         .handler = no_action,
-        .name = "XT-PIC cascade"
+        .name = "XT-PIC cascade",
+        .flags = IRQF_NO_THREAD,
 };
 
 static struct irqaction corehi_irqaction = {
         .handler = no_action,
-        .name = "CoreHi"
+        .name = "CoreHi",
+        .flags = IRQF_NO_THREAD,
 };
 
 static msc_irqmap_t __initdata msc_irqmap[] = {
diff --git a/arch/mips/netlogic/xlr/Makefile b/arch/mips/netlogic/xlr/Makefile
index 9bd3f731f62e..2dca585dd2f7 100644
--- a/arch/mips/netlogic/xlr/Makefile
+++ b/arch/mips/netlogic/xlr/Makefile
@@ -2,4 +2,4 @@ obj-y				+= setup.o platform.o irq.o setup.o time.o
 obj-$(CONFIG_SMP)               += smp.o smpboot.o
 obj-$(CONFIG_EARLY_PRINTK)      += xlr_console.o
 
-EXTRA_CFLAGS                    += -Werror
+ccflags-y                       += -Werror
diff --git a/arch/mips/pci/pci-lantiq.c b/arch/mips/pci/pci-lantiq.c
index 603d7493e966..8656388b34bd 100644
--- a/arch/mips/pci/pci-lantiq.c
+++ b/arch/mips/pci/pci-lantiq.c
@@ -171,8 +171,13 @@ static int __devinit ltq_pci_startup(struct ltq_pci_data *conf)
         u32 temp_buffer;
 
         /* set clock to 33Mhz */
-        ltq_cgu_w32(ltq_cgu_r32(LTQ_CGU_IFCCR) & ~0xf00000, LTQ_CGU_IFCCR);
-        ltq_cgu_w32(ltq_cgu_r32(LTQ_CGU_IFCCR) | 0x800000, LTQ_CGU_IFCCR);
+        if (ltq_is_ar9()) {
+                ltq_cgu_w32(ltq_cgu_r32(LTQ_CGU_IFCCR) & ~0x1f00000, LTQ_CGU_IFCCR);
+                ltq_cgu_w32(ltq_cgu_r32(LTQ_CGU_IFCCR) | 0xe00000, LTQ_CGU_IFCCR);
+        } else {
+                ltq_cgu_w32(ltq_cgu_r32(LTQ_CGU_IFCCR) & ~0xf00000, LTQ_CGU_IFCCR);
+                ltq_cgu_w32(ltq_cgu_r32(LTQ_CGU_IFCCR) | 0x800000, LTQ_CGU_IFCCR);
+        }
 
         /* external or internal clock ? */
         if (conf->clock) {
diff --git a/arch/mips/pci/pci-rc32434.c b/arch/mips/pci/pci-rc32434.c
index 764362ce5e40..5f3a69cebad1 100644
--- a/arch/mips/pci/pci-rc32434.c
+++ b/arch/mips/pci/pci-rc32434.c
@@ -215,7 +215,7 @@ static int __init rc32434_pci_init(void)
         rc32434_pcibridge_init();
 
         io_map_base = ioremap(rc32434_res_pci_io1.start,
-                              resource_size(&rcrc32434_res_pci_io1));
+                              resource_size(&rc32434_res_pci_io1));
 
         if (!io_map_base)
                 return -ENOMEM;
diff --git a/arch/mips/pmc-sierra/msp71xx/msp_irq.c b/arch/mips/pmc-sierra/msp71xx/msp_irq.c
index 4531c4a514bc..d3c3d81757a5 100644
--- a/arch/mips/pmc-sierra/msp71xx/msp_irq.c
+++ b/arch/mips/pmc-sierra/msp71xx/msp_irq.c
@@ -108,12 +108,14 @@ asmlinkage void plat_irq_dispatch(struct pt_regs *regs)
 
 static struct irqaction cic_cascade_msp = {
         .handler = no_action,
-        .name    = "MSP CIC cascade"
+        .name    = "MSP CIC cascade",
+        .flags   = IRQF_NO_THREAD,
 };
 
 static struct irqaction per_cascade_msp = {
         .handler = no_action,
-        .name    = "MSP PER cascade"
+        .name    = "MSP PER cascade",
+        .flags   = IRQF_NO_THREAD,
 };
 
 void __init arch_init_irq(void)
diff --git a/arch/mips/pnx8550/common/int.c b/arch/mips/pnx8550/common/int.c
index 6b93c81779c1..1ebe22bdadc8 100644
--- a/arch/mips/pnx8550/common/int.c
+++ b/arch/mips/pnx8550/common/int.c
@@ -167,7 +167,7 @@ static struct irq_chip level_irq_type = {
 
 static struct irqaction gic_action = {
         .handler =      no_action,
-        .flags =        IRQF_DISABLED,
+        .flags =        IRQF_DISABLED | IRQF_NO_THREAD,
         .name =         "GIC",
 };
 
diff --git a/arch/mips/sgi-ip22/ip22-int.c b/arch/mips/sgi-ip22/ip22-int.c
index b4d08e4d2ea9..f72c336ea27b 100644
--- a/arch/mips/sgi-ip22/ip22-int.c
+++ b/arch/mips/sgi-ip22/ip22-int.c
@@ -155,32 +155,32 @@ static void __irq_entry indy_buserror_irq(void)
 
 static struct irqaction local0_cascade = {
         .handler        = no_action,
-        .flags          = IRQF_DISABLED,
+        .flags          = IRQF_DISABLED | IRQF_NO_THREAD,
         .name           = "local0 cascade",
 };
 
 static struct irqaction local1_cascade = {
         .handler        = no_action,
-        .flags          = IRQF_DISABLED,
+        .flags          = IRQF_DISABLED | IRQF_NO_THREAD,
         .name           = "local1 cascade",
 };
 
 static struct irqaction buserr = {
         .handler        = no_action,
-        .flags          = IRQF_DISABLED,
+        .flags          = IRQF_DISABLED | IRQF_NO_THREAD,
         .name           = "Bus Error",
 };
 
 static struct irqaction map0_cascade = {
         .handler        = no_action,
-        .flags          = IRQF_DISABLED,
+        .flags          = IRQF_DISABLED | IRQF_NO_THREAD,
         .name           = "mapable0 cascade",
 };
 
 #ifdef USE_LIO3_IRQ
 static struct irqaction map1_cascade = {
         .handler        = no_action,
-        .flags          = IRQF_DISABLED,
+        .flags          = IRQF_DISABLED | IRQF_NO_THREAD,
         .name           = "mapable1 cascade",
 };
 #define SGI_INTERRUPTS  SGINT_END
diff --git a/arch/mips/sni/rm200.c b/arch/mips/sni/rm200.c
index a7e5a6d917b1..3ab5b5d25b0a 100644
--- a/arch/mips/sni/rm200.c
+++ b/arch/mips/sni/rm200.c
@@ -359,6 +359,7 @@ void sni_rm200_init_8259A(void)
 static struct irqaction sni_rm200_irq2 = {
         .handler = no_action,
         .name = "cascade",
+        .flags = IRQF_NO_THREAD,
 };
 
 static struct resource sni_rm200_pic1_resource = {
diff --git a/arch/mips/vr41xx/common/irq.c b/arch/mips/vr41xx/common/irq.c
index 70a3b85f3757..fad2bef432cd 100644
--- a/arch/mips/vr41xx/common/irq.c
+++ b/arch/mips/vr41xx/common/irq.c
@@ -34,6 +34,7 @@ static irq_cascade_t irq_cascade[NR_IRQS] __cacheline_aligned;
 static struct irqaction cascade_irqaction = {
         .handler        = no_action,
         .name           = "cascade",
+        .flags          = IRQF_NO_THREAD,
 };
 
 int cascade_irq(unsigned int irq, int (*get_irq)(unsigned int))
diff --git a/arch/tile/kernel/intvec_32.S b/arch/tile/kernel/intvec_32.S
index fc94607f0bd5..aecc8ed5f39b 100644
--- a/arch/tile/kernel/intvec_32.S
+++ b/arch/tile/kernel/intvec_32.S
@@ -21,7 +21,7 @@
 #include <asm/ptrace.h>
 #include <asm/thread_info.h>
 #include <asm/irqflags.h>
-#include <linux/atomic.h>
+#include <asm/atomic_32.h>
 #include <asm/asm-offsets.h>
 #include <hv/hypervisor.h>
 #include <arch/abi.h>
diff --git a/arch/tile/lib/atomic_asm_32.S b/arch/tile/lib/atomic_asm_32.S
index 1f75a2a56101..30638042691d 100644
--- a/arch/tile/lib/atomic_asm_32.S
+++ b/arch/tile/lib/atomic_asm_32.S
@@ -70,7 +70,7 @@
  */
 
 #include <linux/linkage.h>
-#include <linux/atomic.h>
+#include <asm/atomic_32.h>
 #include <asm/page.h>
 #include <asm/processor.h>
 
diff --git a/arch/x86/kernel/vsyscall_64.c b/arch/x86/kernel/vsyscall_64.c
index 18ae83dd1cd7..b56c65de384d 100644
--- a/arch/x86/kernel/vsyscall_64.c
+++ b/arch/x86/kernel/vsyscall_64.c
@@ -56,7 +56,7 @@ DEFINE_VVAR(struct vsyscall_gtod_data, vsyscall_gtod_data) =
         .lock = __SEQLOCK_UNLOCKED(__vsyscall_gtod_data.lock),
 };
 
-static enum { EMULATE, NATIVE, NONE } vsyscall_mode = EMULATE;
+static enum { EMULATE, NATIVE, NONE } vsyscall_mode = NATIVE;
 
 static int __init vsyscall_setup(char *str)
 {
diff --git a/arch/x86/pci/acpi.c b/arch/x86/pci/acpi.c
index 039d91315bc5..404f21a3ff9e 100644
--- a/arch/x86/pci/acpi.c
+++ b/arch/x86/pci/acpi.c
@@ -43,6 +43,17 @@ static const struct dmi_system_id pci_use_crs_table[] __initconst = {
                         DMI_MATCH(DMI_PRODUCT_NAME, "ALiveSATA2-GLAN"),
                 },
         },
+        /* https://bugzilla.kernel.org/show_bug.cgi?id=30552 */
+        /* 2006 AMD HT/VIA system with two host bridges */
+        {
+                .callback = set_use_crs,
+                .ident = "ASUS M2V-MX SE",
+                .matches = {
+                        DMI_MATCH(DMI_BOARD_VENDOR, "ASUSTeK Computer INC."),
+                        DMI_MATCH(DMI_BOARD_NAME, "M2V-MX SE"),
+                        DMI_MATCH(DMI_BIOS_VENDOR, "American Megatrends Inc."),
+                },
+        },
         {}
 };
 
diff --git a/arch/x86/platform/mrst/mrst.c b/arch/x86/platform/mrst/mrst.c
index 58425adc22c6..fe73276e026b 100644
--- a/arch/x86/platform/mrst/mrst.c
+++ b/arch/x86/platform/mrst/mrst.c
@@ -678,38 +678,40 @@ static int __init sfi_parse_devs(struct sfi_table_header *table)
         pentry = (struct sfi_device_table_entry *)sb->pentry;
 
         for (i = 0; i < num; i++, pentry++) {
-                if (pentry->irq != (u8)0xff) { /* native RTE case */
+                int irq = pentry->irq;
+
+                if (irq != (u8)0xff) { /* native RTE case */
                         /* these SPI2 devices are not exposed to system as PCI
                          * devices, but they have separate RTE entry in IOAPIC
                          * so we have to enable them one by one here
                          */
-                        ioapic = mp_find_ioapic(pentry->irq);
+                        ioapic = mp_find_ioapic(irq);
                         irq_attr.ioapic = ioapic;
-                        irq_attr.ioapic_pin = pentry->irq;
+                        irq_attr.ioapic_pin = irq;
                         irq_attr.trigger = 1;
                         irq_attr.polarity = 1;
-                        io_apic_set_pci_routing(NULL, pentry->irq, &irq_attr);
+                        io_apic_set_pci_routing(NULL, irq, &irq_attr);
                 } else
-                        pentry->irq = 0; /* No irq */
+                        irq = 0; /* No irq */
 
                 switch (pentry->type) {
                 case SFI_DEV_TYPE_IPC:
                         /* ID as IRQ is a hack that will go away */
-                        pdev = platform_device_alloc(pentry->name, pentry->irq);
+                        pdev = platform_device_alloc(pentry->name, irq);
                         if (pdev == NULL) {
                                 pr_err("out of memory for SFI platform device '%s'.\n",
                                                         pentry->name);
                                 continue;
                         }
-                        install_irq_resource(pdev, pentry->irq);
+                        install_irq_resource(pdev, irq);
                         pr_debug("info[%2d]: IPC bus, name = %16.16s, "
-                                "irq = 0x%2x\n", i, pentry->name, pentry->irq);
+                                "irq = 0x%2x\n", i, pentry->name, irq);
                         sfi_handle_ipc_dev(pdev);
                         break;
                 case SFI_DEV_TYPE_SPI:
                         memset(&spi_info, 0, sizeof(spi_info));
                         strncpy(spi_info.modalias, pentry->name, SFI_NAME_LEN);
-                        spi_info.irq = pentry->irq;
+                        spi_info.irq = irq;
                         spi_info.bus_num = pentry->host_num;
                         spi_info.chip_select = pentry->addr;
                         spi_info.max_speed_hz = pentry->max_freq;
@@ -726,7 +728,7 @@ static int __init sfi_parse_devs(struct sfi_table_header *table)
                         memset(&i2c_info, 0, sizeof(i2c_info));
                         bus = pentry->host_num;
                         strncpy(i2c_info.type, pentry->name, SFI_NAME_LEN);
-                        i2c_info.irq = pentry->irq;
+                        i2c_info.irq = irq;
                         i2c_info.addr = pentry->addr;
                         pr_debug("info[%2d]: I2C bus = %d, name = %16.16s, "
                                 "irq = 0x%2x, addr = 0x%x\n", i, bus,
diff --git a/drivers/gpio/gpio-omap.c b/drivers/gpio/gpio-omap.c
index 0599854e2217..118ec12d2d5f 100644
--- a/drivers/gpio/gpio-omap.c
+++ b/drivers/gpio/gpio-omap.c
@@ -34,8 +34,8 @@ struct gpio_bank {
         u16 irq;
         u16 virtual_irq_start;
         int method;
-#if defined(CONFIG_ARCH_OMAP16XX) || defined(CONFIG_ARCH_OMAP2PLUS)
         u32 suspend_wakeup;
+#if defined(CONFIG_ARCH_OMAP16XX) || defined(CONFIG_ARCH_OMAP2PLUS)
         u32 saved_wakeup;
 #endif
         u32 non_wakeup_gpios;
diff --git a/drivers/gpio/gpio-pca953x.c b/drivers/gpio/gpio-pca953x.c
index c43b8ff626a7..0550dcb85814 100644
--- a/drivers/gpio/gpio-pca953x.c
+++ b/drivers/gpio/gpio-pca953x.c
@@ -577,6 +577,7 @@ pca953x_get_alt_pdata(struct i2c_client *client, int *gpio_base, int *invert)
 void
 pca953x_get_alt_pdata(struct i2c_client *client, int *gpio_base, int *invert)
 {
+        *gpio_base = -1;
 }
 #endif
 
diff --git a/drivers/gpu/drm/radeon/atombios_dp.c b/drivers/gpu/drm/radeon/atombios_dp.c
index 4da23889fea6..79e8ebc05307 100644
--- a/drivers/gpu/drm/radeon/atombios_dp.c
+++ b/drivers/gpu/drm/radeon/atombios_dp.c
@@ -129,7 +129,9 @@ static int radeon_dp_aux_native_write(struct radeon_connector *radeon_connector,
         for (retry = 0; retry < 4; retry++) {
                 ret = radeon_process_aux_ch(dig_connector->dp_i2c_bus,
                                             msg, msg_bytes, NULL, 0, delay, &ack);
-                if (ret < 0)
+                if (ret == -EBUSY)
+                        continue;
+                else if (ret < 0)
                         return ret;
                 if ((ack & AUX_NATIVE_REPLY_MASK) == AUX_NATIVE_REPLY_ACK)
                         return send_bytes;
@@ -160,7 +162,9 @@ static int radeon_dp_aux_native_read(struct radeon_connector *radeon_connector,
         for (retry = 0; retry < 4; retry++) {
                 ret = radeon_process_aux_ch(dig_connector->dp_i2c_bus,
                                             msg, msg_bytes, recv, recv_bytes, delay, &ack);
-                if (ret < 0)
+                if (ret == -EBUSY)
+                        continue;
+                else if (ret < 0)
                         return ret;
                 if ((ack & AUX_NATIVE_REPLY_MASK) == AUX_NATIVE_REPLY_ACK)
                         return ret;
@@ -236,7 +240,9 @@ int radeon_dp_i2c_aux_ch(struct i2c_adapter *adapter, int mode,
         for (retry = 0; retry < 4; retry++) {
                 ret = radeon_process_aux_ch(auxch,
                                             msg, msg_bytes, reply, reply_bytes, 0, &ack);
-                if (ret < 0) {
+                if (ret == -EBUSY)
+                        continue;
+                else if (ret < 0) {
                         DRM_DEBUG_KMS("aux_ch failed %d\n", ret);
                         return ret;
                 }
diff --git a/drivers/gpu/drm/radeon/radeon_connectors.c b/drivers/gpu/drm/radeon/radeon_connectors.c
index bce63fd329d4..449c3d8c6836 100644
--- a/drivers/gpu/drm/radeon/radeon_connectors.c
+++ b/drivers/gpu/drm/radeon/radeon_connectors.c
@@ -1303,23 +1303,14 @@ radeon_dp_detect(struct drm_connector *connector, bool force)
                 /* get the DPCD from the bridge */
                 radeon_dp_getdpcd(radeon_connector);
 
-                if (radeon_hpd_sense(rdev, radeon_connector->hpd.hpd))
-                        ret = connector_status_connected;
-                else {
-                        /* need to setup ddc on the bridge */
-                        if (encoder)
-                                radeon_atom_ext_encoder_setup_ddc(encoder);
+                if (encoder) {
+                        /* setup ddc on the bridge */
+                        radeon_atom_ext_encoder_setup_ddc(encoder);
                         if (radeon_ddc_probe(radeon_connector,
-                                             radeon_connector->requires_extended_probe))
+                                             radeon_connector->requires_extended_probe)) /* try DDC */
                                 ret = connector_status_connected;
-                }
-
-                if ((ret == connector_status_disconnected) &&
-                    radeon_connector->dac_load_detect) {
-                        struct drm_encoder *encoder = radeon_best_single_encoder(connector);
-                        struct drm_encoder_helper_funcs *encoder_funcs;
-                        if (encoder) {
-                                encoder_funcs = encoder->helper_private;
+                        else if (radeon_connector->dac_load_detect) { /* try load detection */
+                                struct drm_encoder_helper_funcs *encoder_funcs = encoder->helper_private;
                                 ret = encoder_funcs->detect(encoder, connector);
                         }
                 }
diff --git a/drivers/gpu/drm/radeon/radeon_encoders.c b/drivers/gpu/drm/radeon/radeon_encoders.c
index 13690f3eb4a4..8a171b21b453 100644
--- a/drivers/gpu/drm/radeon/radeon_encoders.c
+++ b/drivers/gpu/drm/radeon/radeon_encoders.c
@@ -1755,9 +1755,12 @@ static int radeon_atom_pick_dig_encoder(struct drm_encoder *encoder)
         /* DCE4/5 */
         if (ASIC_IS_DCE4(rdev)) {
                 dig = radeon_encoder->enc_priv;
-                if (ASIC_IS_DCE41(rdev))
-                        return radeon_crtc->crtc_id;
-                else {
+                if (ASIC_IS_DCE41(rdev)) {
+                        if (dig->linkb)
+                                return 1;
+                        else
+                                return 0;
+                } else {
                         switch (radeon_encoder->encoder_id) {
                         case ENCODER_OBJECT_ID_INTERNAL_UNIPHY:
                                 if (dig->linkb)
diff --git a/drivers/hwmon/w83627ehf.c b/drivers/hwmon/w83627ehf.c
index f2b377c56a3a..7b0260dc76fb 100644
--- a/drivers/hwmon/w83627ehf.c
+++ b/drivers/hwmon/w83627ehf.c
@@ -1715,7 +1715,8 @@ static void w83627ehf_device_remove_files(struct device *dev)
 }
 
 /* Get the monitoring functions started */
-static inline void __devinit w83627ehf_init_device(struct w83627ehf_data *data)
+static inline void __devinit w83627ehf_init_device(struct w83627ehf_data *data,
+                                                   enum kinds kind)
 {
         int i;
         u8 tmp, diode;
@@ -1746,10 +1747,16 @@ static inline void __devinit w83627ehf_init_device(struct w83627ehf_data *data)
                 w83627ehf_write_value(data, W83627EHF_REG_VBAT, tmp | 0x01);
 
         /* Get thermal sensor types */
-        diode = w83627ehf_read_value(data, W83627EHF_REG_DIODE);
+        switch (kind) {
+        case w83627ehf:
+                diode = w83627ehf_read_value(data, W83627EHF_REG_DIODE);
+                break;
+        default:
+                diode = 0x70;
+        }
         for (i = 0; i < 3; i++) {
                 if ((tmp & (0x02 << i)))
-                        data->temp_type[i] = (diode & (0x10 << i)) ? 1 : 2;
+                        data->temp_type[i] = (diode & (0x10 << i)) ? 1 : 3;
                 else
                         data->temp_type[i] = 4; /* thermistor */
         }
@@ -2016,7 +2023,7 @@ static int __devinit w83627ehf_probe(struct platform_device *pdev)
         }
 
         /* Initialize the chip */
-        w83627ehf_init_device(data);
+        w83627ehf_init_device(data, sio_data->kind);
 
         data->vrm = vid_which_vrm();
         superio_enter(sio_data->sioreg);
diff --git a/drivers/ide/Kconfig b/drivers/ide/Kconfig
index 9827c5e686cb..811dbbd9306c 100644
--- a/drivers/ide/Kconfig
+++ b/drivers/ide/Kconfig
@@ -327,7 +327,7 @@ config BLK_DEV_OPTI621
         select BLK_DEV_IDEPCI
         help
           This is a driver for the OPTi 82C621 EIDE controller.
-          Please read the comments at the top of <file:drivers/ide/pci/opti621.c>.
+          Please read the comments at the top of <file:drivers/ide/opti621.c>.
 
 config BLK_DEV_RZ1000
         tristate "RZ1000 chipset bugfix/support"
@@ -365,7 +365,7 @@ config BLK_DEV_ALI15X3
           normal dual channel support.
 
           Please read the comments at the top of
-          <file:drivers/ide/pci/alim15x3.c>.
+          <file:drivers/ide/alim15x3.c>.
 
           If unsure, say N.
 
@@ -528,7 +528,7 @@ config BLK_DEV_NS87415
           This driver adds detection and support for the NS87415 chip
           (used mainly on SPARC64 and PA-RISC machines).
 
-          Please read the comments at the top of <file:drivers/ide/pci/ns87415.c>.
+          Please read the comments at the top of <file:drivers/ide/ns87415.c>.
 
 config BLK_DEV_PDC202XX_OLD
         tristate "PROMISE PDC202{46|62|65|67} support"
@@ -547,7 +547,7 @@ config BLK_DEV_PDC202XX_OLD
           for more than one card.
 
           Please read the comments at the top of
-          <file:drivers/ide/pci/pdc202xx_old.c>.
+          <file:drivers/ide/pdc202xx_old.c>.
 
           If unsure, say N.
 
@@ -593,7 +593,7 @@ config BLK_DEV_SIS5513
           ATA100: SiS635, SiS645, SiS650, SiS730, SiS735, SiS740,
           SiS745, SiS750
 
-          Please read the comments at the top of <file:drivers/ide/pci/sis5513.c>.
+          Please read the comments at the top of <file:drivers/ide/sis5513.c>.
 
 config BLK_DEV_SL82C105
         tristate "Winbond SL82c105 support"
@@ -616,7 +616,7 @@ config BLK_DEV_SLC90E66
           look-a-like to the PIIX4 it should be a nice addition.
 
           Please read the comments at the top of
-          <file:drivers/ide/pci/slc90e66.c>.
+          <file:drivers/ide/slc90e66.c>.
 
 config BLK_DEV_TRM290
         tristate "Tekram TRM290 chipset support"
@@ -625,7 +625,7 @@ config BLK_DEV_TRM290
           This driver adds support for bus master DMA transfers
           using the Tekram TRM290 PCI IDE chip. Volunteers are
           needed for further tweaking and development.
-          Please read the comments at the top of <file:drivers/ide/pci/trm290.c>.
+          Please read the comments at the top of <file:drivers/ide/trm290.c>.
 
 config BLK_DEV_VIA82CXXX
         tristate "VIA82CXXX chipset support"
@@ -836,7 +836,7 @@ config BLK_DEV_ALI14XX
           of the ALI M1439/1443/1445/1487/1489 chipsets, and permits faster
           I/O speeds to be set as well.
           See the files <file:Documentation/ide/ide.txt> and
-          <file:drivers/ide/legacy/ali14xx.c> for more info.
+          <file:drivers/ide/ali14xx.c> for more info.
 
 config BLK_DEV_DTC2278
         tristate "DTC-2278 support"
@@ -847,7 +847,7 @@ config BLK_DEV_DTC2278
           boot parameter. It enables support for the secondary IDE interface
           of the DTC-2278 card, and permits faster I/O speeds to be set as
           well. See the <file:Documentation/ide/ide.txt> and
-          <file:drivers/ide/legacy/dtc2278.c> files for more info.
+          <file:drivers/ide/dtc2278.c> files for more info.
 
 config BLK_DEV_HT6560B
         tristate "Holtek HT6560B support"
@@ -858,7 +858,7 @@ config BLK_DEV_HT6560B
           boot parameter. It enables support for the secondary IDE interface
           of the Holtek card, and permits faster I/O speeds to be set as well.
           See the <file:Documentation/ide/ide.txt> and
-          <file:drivers/ide/legacy/ht6560b.c> files for more info.
+          <file:drivers/ide/ht6560b.c> files for more info.
 
 config BLK_DEV_QD65XX
         tristate "QDI QD65xx support"
@@ -867,7 +867,7 @@ config BLK_DEV_QD65XX
         help
           This driver is enabled at runtime using the "qd65xx.probe" kernel
           boot parameter.  It permits faster I/O speeds to be set.  See the
-          <file:Documentation/ide/ide.txt> and <file:drivers/ide/legacy/qd65xx.c>
+          <file:Documentation/ide/ide.txt> and <file:drivers/ide/qd65xx.c>
           for more info.
 
 config BLK_DEV_UMC8672
@@ -879,7 +879,7 @@ config BLK_DEV_UMC8672
           boot parameter. It enables support for the secondary IDE interface
           of the UMC-8672, and permits faster I/O speeds to be set as well.
           See the files <file:Documentation/ide/ide.txt> and
-          <file:drivers/ide/legacy/umc8672.c> for more info.
+          <file:drivers/ide/umc8672.c> for more info.
 
 endif
 
diff --git a/drivers/input/tablet/wacom_wac.c b/drivers/input/tablet/wacom_wac.c
index 0dc97ec15c28..9dea71849f40 100644
--- a/drivers/input/tablet/wacom_wac.c
+++ b/drivers/input/tablet/wacom_wac.c
@@ -1124,11 +1124,8 @@ void wacom_setup_input_capabilities(struct input_dev *input_dev,
                 for (i = 0; i < 8; i++)
                         __set_bit(BTN_0 + i, input_dev->keybit);
 
-                if (wacom_wac->features.type != WACOM_21UX2) {
-                        input_set_abs_params(input_dev, ABS_RX, 0, 4096, 0, 0);
-                        input_set_abs_params(input_dev, ABS_RY, 0, 4096, 0, 0);
-                }
-
+                input_set_abs_params(input_dev, ABS_RX, 0, 4096, 0, 0);
+                input_set_abs_params(input_dev, ABS_RY, 0, 4096, 0, 0);
                 input_set_abs_params(input_dev, ABS_Z, -900, 899, 0, 0);
 
                 __set_bit(INPUT_PROP_DIRECT, input_dev->propbit);
diff --git a/drivers/md/dm-crypt.c b/drivers/md/dm-crypt.c
index 49da55c1528a..8c2a000cf3f5 100644
--- a/drivers/md/dm-crypt.c
+++ b/drivers/md/dm-crypt.c
@@ -1698,6 +1698,8 @@ static int crypt_ctr(struct dm_target *ti, unsigned int argc, char **argv)
         }
 
         ti->num_flush_requests = 1;
+        ti->discard_zeroes_data_unsupported = 1;
+
         return 0;
 
 bad:
diff --git a/drivers/md/dm-flakey.c b/drivers/md/dm-flakey.c
index 89f73ca22cfa..f84c08029b21 100644
--- a/drivers/md/dm-flakey.c
+++ b/drivers/md/dm-flakey.c
@@ -81,8 +81,10 @@ static int parse_features(struct dm_arg_set *as, struct flakey_c *fc,
                  * corrupt_bio_byte <Nth_byte> <direction> <value> <bio_flags>
                  */
                 if (!strcasecmp(arg_name, "corrupt_bio_byte")) {
-                        if (!argc)
+                        if (!argc) {
                                 ti->error = "Feature corrupt_bio_byte requires parameters";
+                                return -EINVAL;
+                        }
 
                         r = dm_read_arg(_args + 1, as, &fc->corrupt_bio_byte, &ti->error);
                         if (r)
diff --git a/drivers/md/dm-raid.c b/drivers/md/dm-raid.c
index a002dd85db1e..86df8b2cf927 100644
--- a/drivers/md/dm-raid.c
+++ b/drivers/md/dm-raid.c
@@ -449,7 +449,7 @@ static int parse_raid_params(struct raid_set *rs, char **argv,
                                 rs->ti->error = "write_mostly option is only valid for RAID1";
                                 return -EINVAL;
                         }
-                        if (value > rs->md.raid_disks) {
+                        if (value >= rs->md.raid_disks) {
                                 rs->ti->error = "Invalid write_mostly drive index given";
                                 return -EINVAL;
                         }
diff --git a/drivers/md/dm-table.c b/drivers/md/dm-table.c
index 986b8754bb08..bc04518e9d8b 100644
--- a/drivers/md/dm-table.c
+++ b/drivers/md/dm-table.c
@@ -1238,14 +1238,15 @@ static void dm_table_set_integrity(struct dm_table *t)
                 return;
 
         template_disk = dm_table_get_integrity_disk(t, true);
-        if (!template_disk &&
-            blk_integrity_is_initialized(dm_disk(t->md))) {
+        if (template_disk)
+                blk_integrity_register(dm_disk(t->md),
+                                       blk_get_integrity(template_disk));
+        else if (blk_integrity_is_initialized(dm_disk(t->md)))
                 DMWARN("%s: device no longer has a valid integrity profile",
                        dm_device_name(t->md));
-                return;
-        }
-        blk_integrity_register(dm_disk(t->md),
-                               blk_get_integrity(template_disk));
+        else
+                DMWARN("%s: unable to establish an integrity profile",
+                       dm_device_name(t->md));
 }
 
 static int device_flush_capable(struct dm_target *ti, struct dm_dev *dev,
@@ -1282,6 +1283,22 @@ static bool dm_table_supports_flush(struct dm_table *t, unsigned flush)
         return 0;
 }
 
+static bool dm_table_discard_zeroes_data(struct dm_table *t)
+{
+        struct dm_target *ti;
+        unsigned i = 0;
+
+        /* Ensure that all targets supports discard_zeroes_data. */
+        while (i < dm_table_get_num_targets(t)) {
+                ti = dm_table_get_target(t, i++);
+
+                if (ti->discard_zeroes_data_unsupported)
+                        return 0;
+        }
+
+        return 1;
+}
+
 void dm_table_set_restrictions(struct dm_table *t, struct request_queue *q,
                                struct queue_limits *limits)
 {
@@ -1304,6 +1321,9 @@ void dm_table_set_restrictions(struct dm_table *t, struct request_queue *q,
         }
         blk_queue_flush(q, flush);
 
+        if (!dm_table_discard_zeroes_data(t))
+                q->limits.discard_zeroes_data = 0;
+
         dm_table_set_integrity(t);
 
         /*
diff --git a/drivers/md/md.c b/drivers/md/md.c
index 5404b2295820..5c95ccb59500 100644
--- a/drivers/md/md.c
+++ b/drivers/md/md.c
@@ -61,6 +61,11 @@
 static void autostart_arrays(int part);
 #endif
 
+/* pers_list is a list of registered personalities protected
+ * by pers_lock.
+ * pers_lock does extra service to protect accesses to
+ * mddev->thread when the mutex cannot be held.
+ */
 static LIST_HEAD(pers_list);
 static DEFINE_SPINLOCK(pers_lock);
 
@@ -739,7 +744,12 @@ static void mddev_unlock(mddev_t * mddev)
         } else
                 mutex_unlock(&mddev->reconfig_mutex);
 
+        /* was we've dropped the mutex we need a spinlock to
+         * make sur the thread doesn't disappear
+         */
+        spin_lock(&pers_lock);
         md_wakeup_thread(mddev->thread);
+        spin_unlock(&pers_lock);
 }
 
 static mdk_rdev_t * find_rdev_nr(mddev_t *mddev, int nr)
@@ -6429,11 +6439,18 @@ mdk_thread_t *md_register_thread(void (*run) (mddev_t *), mddev_t *mddev,
         return thread;
 }
 
-void md_unregister_thread(mdk_thread_t *thread)
+void md_unregister_thread(mdk_thread_t **threadp)
 {
+        mdk_thread_t *thread = *threadp;
         if (!thread)
                 return;
         dprintk("interrupting MD-thread pid %d\n", task_pid_nr(thread->tsk));
+        /* Locking ensures that mddev_unlock does not wake_up a
+         * non-existent thread
+         */
+        spin_lock(&pers_lock);
+        *threadp = NULL;
+        spin_unlock(&pers_lock);
 
         kthread_stop(thread->tsk);
         kfree(thread);
@@ -7340,8 +7357,7 @@ static void reap_sync_thread(mddev_t *mddev)
         mdk_rdev_t *rdev;
 
         /* resync has finished, collect result */
-        md_unregister_thread(mddev->sync_thread);
-        mddev->sync_thread = NULL;
+        md_unregister_thread(&mddev->sync_thread);
         if (!test_bit(MD_RECOVERY_INTR, &mddev->recovery) &&
             !test_bit(MD_RECOVERY_REQUESTED, &mddev->recovery)) {
                 /* success...*/
diff --git a/drivers/md/md.h b/drivers/md/md.h
index 1e586bb4452e..0a309dc29b45 100644
--- a/drivers/md/md.h
+++ b/drivers/md/md.h
@@ -560,7 +560,7 @@ extern int register_md_personality(struct mdk_personality *p);
 extern int unregister_md_personality(struct mdk_personality *p);
 extern mdk_thread_t * md_register_thread(void (*run) (mddev_t *mddev),
                                 mddev_t *mddev, const char *name);
-extern void md_unregister_thread(mdk_thread_t *thread);
+extern void md_unregister_thread(mdk_thread_t **threadp);
 extern void md_wakeup_thread(mdk_thread_t *thread);
 extern void md_check_recovery(mddev_t *mddev);
 extern void md_write_start(mddev_t *mddev, struct bio *bi);
diff --git a/drivers/md/multipath.c b/drivers/md/multipath.c
index 3535c23af288..d5b5fb300171 100644
--- a/drivers/md/multipath.c
+++ b/drivers/md/multipath.c
@@ -514,8 +514,7 @@ static int multipath_stop (mddev_t *mddev)
 {
         multipath_conf_t *conf = mddev->private;
 
-        md_unregister_thread(mddev->thread);
-        mddev->thread = NULL;
+        md_unregister_thread(&mddev->thread);
         blk_sync_queue(mddev->queue); /* the unplug fn references 'conf'*/
         mempool_destroy(conf->pool);
         kfree(conf->multipaths);
diff --git a/drivers/md/raid1.c b/drivers/md/raid1.c
index f4622dd8fc59..d9587dffe533 100644
--- a/drivers/md/raid1.c
+++ b/drivers/md/raid1.c
@@ -2562,8 +2562,7 @@ static int stop(mddev_t *mddev)
         raise_barrier(conf);
         lower_barrier(conf);
 
-        md_unregister_thread(mddev->thread);
-        mddev->thread = NULL;
+        md_unregister_thread(&mddev->thread);
         if (conf->r1bio_pool)
                 mempool_destroy(conf->r1bio_pool);
         kfree(conf->mirrors);
diff --git a/drivers/md/raid10.c b/drivers/md/raid10.c
index d7a8468ddeab..0cd9672cf9cb 100644
--- a/drivers/md/raid10.c
+++ b/drivers/md/raid10.c
@@ -2955,7 +2955,7 @@ static int run(mddev_t *mddev)
         return 0;
 
 out_free_conf:
-        md_unregister_thread(mddev->thread);
+        md_unregister_thread(&mddev->thread);
         if (conf->r10bio_pool)
                 mempool_destroy(conf->r10bio_pool);
         safe_put_page(conf->tmppage);
@@ -2973,8 +2973,7 @@ static int stop(mddev_t *mddev)
         raise_barrier(conf, 0);
         lower_barrier(conf);
 
-        md_unregister_thread(mddev->thread);
-        mddev->thread = NULL;
+        md_unregister_thread(&mddev->thread);
         blk_sync_queue(mddev->queue); /* the unplug fn references 'conf'*/
         if (conf->r10bio_pool)
                 mempool_destroy(conf->r10bio_pool);
diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c
index 43709fa6b6df..ac5e8b57e50f 100644
--- a/drivers/md/raid5.c
+++ b/drivers/md/raid5.c
@@ -4941,8 +4941,7 @@ static int run(mddev_t *mddev)
 
         return 0;
 abort:
-        md_unregister_thread(mddev->thread);
-        mddev->thread = NULL;
+        md_unregister_thread(&mddev->thread);
         if (conf) {
                 print_raid5_conf(conf);
                 free_conf(conf);
@@ -4956,8 +4955,7 @@ static int stop(mddev_t *mddev)
 {
         raid5_conf_t *conf = mddev->private;
 
-        md_unregister_thread(mddev->thread);
-        mddev->thread = NULL;
+        md_unregister_thread(&mddev->thread);
         if (mddev->queue)
                 mddev->queue->backing_dev_info.congested_fn = NULL;
         free_conf(conf);
diff --git a/drivers/net/bnx2x/bnx2x.h b/drivers/net/bnx2x/bnx2x.h
index e46df5331c55..9a7eb3b36cf3 100644
--- a/drivers/net/bnx2x/bnx2x.h
+++ b/drivers/net/bnx2x/bnx2x.h
@@ -239,13 +239,19 @@ void bnx2x_int_disable(struct bnx2x *bp);
  *  FUNC_N_CLID_X = N * NUM_SPECIAL_CLIENTS + FUNC_0_CLID_X
  *
  */
-/* iSCSI L2 */
-#define BNX2X_ISCSI_ETH_CL_ID_IDX       1
-#define BNX2X_ISCSI_ETH_CID             49
+enum {
+        BNX2X_ISCSI_ETH_CL_ID_IDX,
+        BNX2X_FCOE_ETH_CL_ID_IDX,
+        BNX2X_MAX_CNIC_ETH_CL_ID_IDX,
+};
 
-/* FCoE L2 */
-#define BNX2X_FCOE_ETH_CL_ID_IDX        2
-#define BNX2X_FCOE_ETH_CID              50
+#define BNX2X_CNIC_START_ETH_CID        48
+enum {
+        /* iSCSI L2 */
+        BNX2X_ISCSI_ETH_CID = BNX2X_CNIC_START_ETH_CID,
+        /* FCoE L2 */
+        BNX2X_FCOE_ETH_CID,
+};
 
 /** Additional rings budgeting */
 #ifdef BCM_CNIC
diff --git a/drivers/net/bnx2x/bnx2x_cmn.h b/drivers/net/bnx2x/bnx2x_cmn.h
index 223bfeebc597..2dc1199239d0 100644
--- a/drivers/net/bnx2x/bnx2x_cmn.h
+++ b/drivers/net/bnx2x/bnx2x_cmn.h
@@ -1297,7 +1297,7 @@ static inline void bnx2x_init_txdata(struct bnx2x *bp,
 static inline u8 bnx2x_cnic_eth_cl_id(struct bnx2x *bp, u8 cl_idx)
 {
         return bp->cnic_base_cl_id + cl_idx +
-                (bp->pf_num >> 1) * NON_ETH_CONTEXT_USE;
+                (bp->pf_num >> 1) * BNX2X_MAX_CNIC_ETH_CL_ID_IDX;
 }
 
 static inline u8 bnx2x_cnic_fw_sb_id(struct bnx2x *bp)
diff --git a/drivers/net/can/mscan/mscan.c b/drivers/net/can/mscan/mscan.c
index 92feac68b66e..4cc6f44c2ba2 100644
--- a/drivers/net/can/mscan/mscan.c
+++ b/drivers/net/can/mscan/mscan.c
@@ -261,11 +261,13 @@ static netdev_tx_t mscan_start_xmit(struct sk_buff *skb, struct net_device *dev)
                 void __iomem *data = &regs->tx.dsr1_0;
                 u16 *payload = (u16 *)frame->data;
 
-                /* It is safe to write into dsr[dlc+1] */
-                for (i = 0; i < (frame->can_dlc + 1) / 2; i++) {
+                for (i = 0; i < frame->can_dlc / 2; i++) {
                         out_be16(data, *payload++);
                         data += 2 + _MSCAN_RESERVED_DSR_SIZE;
                 }
+                /* write remaining byte if necessary */
+                if (frame->can_dlc & 1)
+                        out_8(data, frame->data[frame->can_dlc - 1]);
         }
 
         out_8(&regs->tx.dlr, frame->can_dlc);
@@ -330,10 +332,13 @@ static void mscan_get_rx_frame(struct net_device *dev, struct can_frame *frame)
                 void __iomem *data = &regs->rx.dsr1_0;
                 u16 *payload = (u16 *)frame->data;
 
-                for (i = 0; i < (frame->can_dlc + 1) / 2; i++) {
+                for (i = 0; i < frame->can_dlc / 2; i++) {
                         *payload++ = in_be16(data);
                         data += 2 + _MSCAN_RESERVED_DSR_SIZE;
                 }
+                /* read remaining byte if necessary */
+                if (frame->can_dlc & 1)
+                        frame->data[frame->can_dlc - 1] = in_8(data);
         }
 
         out_8(&regs->canrflg, MSCAN_RXF);
diff --git a/drivers/net/macvlan.c b/drivers/net/macvlan.c
index 05172c39a0ce..376e3e94bae0 100644
--- a/drivers/net/macvlan.c
+++ b/drivers/net/macvlan.c
@@ -239,7 +239,7 @@ static int macvlan_queue_xmit(struct sk_buff *skb, struct net_device *dev)
                 dest = macvlan_hash_lookup(port, eth->h_dest);
                 if (dest && dest->mode == MACVLAN_MODE_BRIDGE) {
                         /* send to lowerdev first for its network taps */
-                        vlan->forward(vlan->lowerdev, skb);
+                        dev_forward_skb(vlan->lowerdev, skb);
 
                         return NET_XMIT_SUCCESS;
                 }
diff --git a/drivers/net/mlx4/en_tx.c b/drivers/net/mlx4/en_tx.c
index 6e03de034ac7..f76ab6bf3096 100644
--- a/drivers/net/mlx4/en_tx.c
+++ b/drivers/net/mlx4/en_tx.c
@@ -172,7 +172,7 @@ int mlx4_en_activate_tx_ring(struct mlx4_en_priv *priv,
         memset(ring->buf, 0, ring->buf_size);
 
         ring->qp_state = MLX4_QP_STATE_RST;
-        ring->doorbell_qpn = swab32(ring->qp.qpn << 8);
+        ring->doorbell_qpn = ring->qp.qpn << 8;
 
         mlx4_en_fill_qp_context(priv, ring->size, ring->stride, 1, 0, ring->qpn,
                                 ring->cqn, &ring->context);
@@ -791,7 +791,7 @@ netdev_tx_t mlx4_en_xmit(struct sk_buff *skb, struct net_device *dev)
                 skb_orphan(skb);
 
         if (ring->bf_enabled && desc_size <= MAX_BF && !bounce && !vlan_tag) {
-                *(u32 *) (&tx_desc->ctrl.vlan_tag) |= ring->doorbell_qpn;
+                *(__be32 *) (&tx_desc->ctrl.vlan_tag) |= cpu_to_be32(ring->doorbell_qpn);
                 op_own |= htonl((bf_index & 0xffff) << 8);
                 /* Ensure new descirptor hits memory
                 * before setting ownership of this descriptor to HW */
@@ -812,7 +812,7 @@ netdev_tx_t mlx4_en_xmit(struct sk_buff *skb, struct net_device *dev)
                 wmb();
                 tx_desc->ctrl.owner_opcode = op_own;
                 wmb();
-                writel(ring->doorbell_qpn, ring->bf.uar->map + MLX4_SEND_DOORBELL);
+                iowrite32be(ring->doorbell_qpn, ring->bf.uar->map + MLX4_SEND_DOORBELL);
         }
 
         /* Poll CQ here */
diff --git a/drivers/scsi/libsas/sas_expander.c b/drivers/scsi/libsas/sas_expander.c
index c9e3dc024bc3..16ad97df5ba6 100644
--- a/drivers/scsi/libsas/sas_expander.c
+++ b/drivers/scsi/libsas/sas_expander.c
@@ -1769,10 +1769,12 @@ static void sas_unregister_devs_sas_addr(struct domain_device *parent,
                 sas_disable_routing(parent, phy->attached_sas_addr);
         }
         memset(phy->attached_sas_addr, 0, SAS_ADDR_SIZE);
-        sas_port_delete_phy(phy->port, phy->phy);
-        if (phy->port->num_phys == 0)
-                sas_port_delete(phy->port);
-        phy->port = NULL;
+        if (phy->port) {
+                sas_port_delete_phy(phy->port, phy->phy);
+                if (phy->port->num_phys == 0)
+                        sas_port_delete(phy->port);
+                phy->port = NULL;
+        }
 }
 
 static int sas_discover_bfs_by_root_level(struct domain_device *root,
diff --git a/drivers/scsi/qla2xxx/qla_os.c b/drivers/scsi/qla2xxx/qla_os.c
index 4cace3f20c04..1e69527f1e4e 100644
--- a/drivers/scsi/qla2xxx/qla_os.c
+++ b/drivers/scsi/qla2xxx/qla_os.c
@@ -1328,10 +1328,9 @@ qla2x00_abort_all_cmds(scsi_qla_host_t *vha, int res)
                                         qla2x00_sp_compl(ha, sp);
                                 } else {
                                         ctx = sp->ctx;
-                                        if (ctx->type == SRB_LOGIN_CMD ||
-                                            ctx->type == SRB_LOGOUT_CMD) {
-                                                ctx->u.iocb_cmd->free(sp);
-                                        } else {
+                                        if (ctx->type == SRB_ELS_CMD_RPT ||
+                                            ctx->type == SRB_ELS_CMD_HST ||
+                                            ctx->type == SRB_CT_CMD) {
                                                 struct fc_bsg_job *bsg_job =
                                                     ctx->u.bsg_job;
                                                 if (bsg_job->request->msgcode
@@ -1343,6 +1342,8 @@ qla2x00_abort_all_cmds(scsi_qla_host_t *vha, int res)
                                                 kfree(sp->ctx);
                                                 mempool_free(sp,
                                                         ha->srb_mempool);
+                                        } else {
+                                                ctx->u.iocb_cmd->free(sp);
                                         }
                                 }
                         }
diff --git a/drivers/staging/octeon/ethernet-rx.c b/drivers/staging/octeon/ethernet-rx.c
index 1a7c19ae766f..8b307b428791 100644
--- a/drivers/staging/octeon/ethernet-rx.c
+++ b/drivers/staging/octeon/ethernet-rx.c
@@ -411,7 +411,8 @@ static int cvm_oct_napi_poll(struct napi_struct *napi, int budget)
                                 skb->protocol = eth_type_trans(skb, dev);
                                 skb->dev = dev;
 
-                                if (unlikely(work->word2.s.not_IP || work->word2.s.IP_exc || work->word2.s.L4_error))
+                                if (unlikely(work->word2.s.not_IP || work->word2.s.IP_exc ||
+                                        work->word2.s.L4_error || !work->word2.s.tcp_or_udp))
                                         skb->ip_summed = CHECKSUM_NONE;
                                 else
                                         skb->ip_summed = CHECKSUM_UNNECESSARY;
diff --git a/drivers/tty/serial/lantiq.c b/drivers/tty/serial/lantiq.c
index 58cf279ed879..bc95f52cad8b 100644
--- a/drivers/tty/serial/lantiq.c
+++ b/drivers/tty/serial/lantiq.c
@@ -478,8 +478,10 @@ lqasc_set_termios(struct uart_port *port,
         spin_unlock_irqrestore(&ltq_asc_lock, flags);
 
         /* Don't rewrite B0 */
-        if (tty_termios_baud_rate(new))
+        if (tty_termios_baud_rate(new))
                 tty_termios_encode_baud_rate(new, baud, baud);
+
+        uart_update_timeout(port, cflag, baud);
 }
 
 static const char*
diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c
index 538f65a79ec5..dae5dfe41ba5 100644
--- a/fs/btrfs/ioctl.c
+++ b/fs/btrfs/ioctl.c
@@ -1047,7 +1047,16 @@ int btrfs_defrag_file(struct inode *inode, struct file *file,
         if (!max_to_defrag)
                 max_to_defrag = last_index - 1;
 
-        while (i <= last_index && defrag_count < max_to_defrag) {
+        /*
+         * make writeback starts from i, so the defrag range can be
+         * written sequentially.
+         */
+        if (i < inode->i_mapping->writeback_index)
+                inode->i_mapping->writeback_index = i;
+
+        while (i <= last_index && defrag_count < max_to_defrag &&
+               (i < (i_size_read(inode) + PAGE_CACHE_SIZE - 1) >>
+                PAGE_CACHE_SHIFT)) {
                 /*
                  * make sure we stop running if someone unmounts
                  * the FS
diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c
index f4af4cc37500..71beb0201970 100644
--- a/fs/cifs/connect.c
+++ b/fs/cifs/connect.c
@@ -2018,7 +2018,7 @@ cifs_get_smb_ses(struct TCP_Server_Info *server, struct smb_vol *volume_info)
                 warned_on_ntlm = true;
                 cERROR(1, "default security mechanism requested.  The default "
                         "security mechanism will be upgraded from ntlm to "
-                        "ntlmv2 in kernel release 3.1");
+                        "ntlmv2 in kernel release 3.2");
         }
         ses->overrideSecFlg = volume_info->secFlg;
 
diff --git a/fs/xfs/xfs_buf_item.c b/fs/xfs/xfs_buf_item.c
index 65d6f4432d28..1a3513881bce 100644
--- a/fs/xfs/xfs_buf_item.c
+++ b/fs/xfs/xfs_buf_item.c
@@ -629,7 +629,7 @@ xfs_buf_item_push(
  * the xfsbufd to get this buffer written. We have to unlock the buffer
  * to allow the xfsbufd to write it, too.
  */
-STATIC void
+STATIC bool
 xfs_buf_item_pushbuf(
         struct xfs_log_item     *lip)
 {
@@ -643,6 +643,7 @@ xfs_buf_item_pushbuf(
 
         xfs_buf_delwri_promote(bp);
         xfs_buf_relse(bp);
+        return true;
 }
 
 STATIC void
diff --git a/fs/xfs/xfs_dquot_item.c b/fs/xfs/xfs_dquot_item.c
index 9e0e2fa3f2c8..bb3f71d236d2 100644
--- a/fs/xfs/xfs_dquot_item.c
+++ b/fs/xfs/xfs_dquot_item.c
@@ -183,13 +183,14 @@ xfs_qm_dqunpin_wait(
  * search the buffer cache can be a time consuming thing, and AIL lock is a
  * spinlock.
  */
-STATIC void
+STATIC bool
 xfs_qm_dquot_logitem_pushbuf(
         struct xfs_log_item     *lip)
 {
         struct xfs_dq_logitem   *qlip = DQUOT_ITEM(lip);
         struct xfs_dquot        *dqp = qlip->qli_dquot;
         struct xfs_buf          *bp;
+        bool                    ret = true;
 
         ASSERT(XFS_DQ_IS_LOCKED(dqp));
 
@@ -201,17 +202,20 @@ xfs_qm_dquot_logitem_pushbuf(
         if (completion_done(&dqp->q_flush) ||
             !(lip->li_flags & XFS_LI_IN_AIL)) {
                 xfs_dqunlock(dqp);
-                return;
+                return true;
         }
 
         bp = xfs_incore(dqp->q_mount->m_ddev_targp, qlip->qli_format.qlf_blkno,
                         dqp->q_mount->m_quotainfo->qi_dqchunklen, XBF_TRYLOCK);
         xfs_dqunlock(dqp);
         if (!bp)
-                return;
+                return true;
         if (XFS_BUF_ISDELAYWRITE(bp))
                 xfs_buf_delwri_promote(bp);
+        if (xfs_buf_ispinned(bp))
+                ret = false;
         xfs_buf_relse(bp);
+        return ret;
 }
 
 /*
diff --git a/fs/xfs/xfs_inode_item.c b/fs/xfs/xfs_inode_item.c
index 8704a99241d7..b7cf21ba240f 100644
--- a/fs/xfs/xfs_inode_item.c
+++ b/fs/xfs/xfs_inode_item.c
@@ -706,13 +706,14 @@ xfs_inode_item_committed(
  * marked delayed write. If that's the case, we'll promote it and that will
  * allow the caller to write the buffer by triggering the xfsbufd to run.
  */
-STATIC void
+STATIC bool
 xfs_inode_item_pushbuf(
         struct xfs_log_item     *lip)
 {
         struct xfs_inode_log_item *iip = INODE_ITEM(lip);
         struct xfs_inode        *ip = iip->ili_inode;
         struct xfs_buf          *bp;
+        bool                    ret = true;
 
         ASSERT(xfs_isilocked(ip, XFS_ILOCK_SHARED));
 
@@ -723,7 +724,7 @@ xfs_inode_item_pushbuf(
         if (completion_done(&ip->i_flush) ||
             !(lip->li_flags & XFS_LI_IN_AIL)) {
                 xfs_iunlock(ip, XFS_ILOCK_SHARED);
-                return;
+                return true;
         }
 
         bp = xfs_incore(ip->i_mount->m_ddev_targp, iip->ili_format.ilf_blkno,
@@ -731,10 +732,13 @@ xfs_inode_item_pushbuf(
 
         xfs_iunlock(ip, XFS_ILOCK_SHARED);
         if (!bp)
-                return;
+                return true;
         if (XFS_BUF_ISDELAYWRITE(bp))
                 xfs_buf_delwri_promote(bp);
+        if (xfs_buf_ispinned(bp))
+                ret = false;
         xfs_buf_relse(bp);
+        return ret;
 }
 
 /*
diff --git a/fs/xfs/xfs_linux.h b/fs/xfs/xfs_linux.h
index 1e8a45e74c3e..828662f70d64 100644
--- a/fs/xfs/xfs_linux.h
+++ b/fs/xfs/xfs_linux.h
@@ -68,6 +68,8 @@
 #include <linux/ctype.h>
 #include <linux/writeback.h>
 #include <linux/capability.h>
+#include <linux/kthread.h>
+#include <linux/freezer.h>
 #include <linux/list_sort.h>
 
 #include <asm/page.h>
diff --git a/fs/xfs/xfs_super.c b/fs/xfs/xfs_super.c
index ba16248bcf24..3eca58f51ae9 100644
--- a/fs/xfs/xfs_super.c
+++ b/fs/xfs/xfs_super.c
@@ -1648,24 +1648,13 @@ xfs_init_workqueues(void)
          */
         xfs_syncd_wq = alloc_workqueue("xfssyncd", WQ_CPU_INTENSIVE, 8);
         if (!xfs_syncd_wq)
-                goto out;
-
-        xfs_ail_wq = alloc_workqueue("xfsail", WQ_CPU_INTENSIVE, 8);
-        if (!xfs_ail_wq)
-                goto out_destroy_syncd;
-
+                return -ENOMEM;
         return 0;
-
-out_destroy_syncd:
-        destroy_workqueue(xfs_syncd_wq);
-out:
-        return -ENOMEM;
 }
 
 STATIC void
 xfs_destroy_workqueues(void)
 {
-        destroy_workqueue(xfs_ail_wq);
         destroy_workqueue(xfs_syncd_wq);
 }
 
diff --git a/fs/xfs/xfs_trans.h b/fs/xfs/xfs_trans.h
index f5df16969f82..603f3eb52041 100644
--- a/fs/xfs/xfs_trans.h
+++ b/fs/xfs/xfs_trans.h
@@ -350,7 +350,7 @@ typedef struct xfs_item_ops {
         void (*iop_unlock)(xfs_log_item_t *);
         xfs_lsn_t (*iop_committed)(xfs_log_item_t *, xfs_lsn_t);
         void (*iop_push)(xfs_log_item_t *);
-        void (*iop_pushbuf)(xfs_log_item_t *);
+        bool (*iop_pushbuf)(xfs_log_item_t *);
         void (*iop_committing)(xfs_log_item_t *, xfs_lsn_t);
 } xfs_item_ops_t;
 
diff --git a/fs/xfs/xfs_trans_ail.c b/fs/xfs/xfs_trans_ail.c
index 9df7f9f1b5ee..512ff646d01c 100644
--- a/fs/xfs/xfs_trans_ail.c
+++ b/fs/xfs/xfs_trans_ail.c
@@ -28,8 +28,6 @@
 #include "xfs_trans_priv.h"
 #include "xfs_error.h"
 
-struct workqueue_struct *xfs_ail_wq;    /* AIL workqueue */
-
 #ifdef DEBUG
 /*
  * Check that the list is sorted as it should be.
@@ -356,16 +354,10 @@ xfs_ail_delete(
         xfs_trans_ail_cursor_clear(ailp, lip);
 }
 
-/*
- * xfs_ail_worker does the work of pushing on the AIL. It will requeue itself
- * to run at a later time if there is more work to do to complete the push.
- */
-STATIC void
-xfs_ail_worker(
-        struct work_struct      *work)
+static long
+xfsaild_push(
+        struct xfs_ail          *ailp)
 {
-        struct xfs_ail          *ailp = container_of(to_delayed_work(work),
-                                        struct xfs_ail, xa_work);
         xfs_mount_t             *mp = ailp->xa_mount;
         struct xfs_ail_cursor   cur;
         xfs_log_item_t          *lip;
@@ -439,8 +431,13 @@ xfs_ail_worker(
 
                 case XFS_ITEM_PUSHBUF:
                         XFS_STATS_INC(xs_push_ail_pushbuf);
-                        IOP_PUSHBUF(lip);
-                        ailp->xa_last_pushed_lsn = lsn;
+
+                        if (!IOP_PUSHBUF(lip)) {
+                                stuck++;
+                                flush_log = 1;
+                        } else {
+                                ailp->xa_last_pushed_lsn = lsn;
+                        }
                         push_xfsbufd = 1;
                         break;
 
@@ -452,7 +449,6 @@ xfs_ail_worker(
 
                 case XFS_ITEM_LOCKED:
                         XFS_STATS_INC(xs_push_ail_locked);
-                        ailp->xa_last_pushed_lsn = lsn;
                         stuck++;
                         break;
 
@@ -504,20 +500,6 @@ out_done:
                 ailp->xa_last_pushed_lsn = 0;
                 ailp->xa_log_flush = 0;
 
-                /*
-                 * We clear the XFS_AIL_PUSHING_BIT first before checking
-                 * whether the target has changed. If the target has changed,
-                 * this pushes the requeue race directly onto the result of the
-                 * atomic test/set bit, so we are guaranteed that either the
-                 * the pusher that changed the target or ourselves will requeue
-                 * the work (but not both).
-                 */
-                clear_bit(XFS_AIL_PUSHING_BIT, &ailp->xa_flags);
-                smp_rmb();
-                if (XFS_LSN_CMP(ailp->xa_target, target) == 0 ||
-                    test_and_set_bit(XFS_AIL_PUSHING_BIT, &ailp->xa_flags))
-                        return;
-
                 tout = 50;
         } else if (XFS_LSN_CMP(lsn, target) >= 0) {
                 /*
@@ -544,9 +526,30 @@ out_done:
                 ailp->xa_last_pushed_lsn = 0;
         }
 
-        /* There is more to do, requeue us.  */
-        queue_delayed_work(xfs_syncd_wq, &ailp->xa_work,
-                                        msecs_to_jiffies(tout));
+        return tout;
+}
+
+static int
+xfsaild(
+        void            *data)
+{
+        struct xfs_ail  *ailp = data;
+        long            tout = 0;       /* milliseconds */
+
+        while (!kthread_should_stop()) {
+                if (tout && tout <= 20)
+                        __set_current_state(TASK_KILLABLE);
+                else
+                        __set_current_state(TASK_INTERRUPTIBLE);
+                schedule_timeout(tout ?
+                                 msecs_to_jiffies(tout) : MAX_SCHEDULE_TIMEOUT);
+
+                try_to_freeze();
+
+                tout = xfsaild_push(ailp);
+        }
+
+        return 0;
 }
 
 /*
@@ -581,8 +584,9 @@ xfs_ail_push(
          */
         smp_wmb();
         xfs_trans_ail_copy_lsn(ailp, &ailp->xa_target, &threshold_lsn);
-        if (!test_and_set_bit(XFS_AIL_PUSHING_BIT, &ailp->xa_flags))
-                queue_delayed_work(xfs_syncd_wq, &ailp->xa_work, 0);
+        smp_wmb();
+
+        wake_up_process(ailp->xa_task);
 }
 
 /*
@@ -820,9 +824,18 @@ xfs_trans_ail_init(
         INIT_LIST_HEAD(&ailp->xa_ail);
         INIT_LIST_HEAD(&ailp->xa_cursors);
         spin_lock_init(&ailp->xa_lock);
-        INIT_DELAYED_WORK(&ailp->xa_work, xfs_ail_worker);
+
+        ailp->xa_task = kthread_run(xfsaild, ailp, "xfsaild/%s",
+                        ailp->xa_mount->m_fsname);
+        if (IS_ERR(ailp->xa_task))
+                goto out_free_ailp;
+
         mp->m_ail = ailp;
         return 0;
+
+out_free_ailp:
+        kmem_free(ailp);
+        return ENOMEM;
 }
 
 void
@@ -831,6 +844,6 @@ xfs_trans_ail_destroy(
 {
         struct xfs_ail  *ailp = mp->m_ail;
 
-        cancel_delayed_work_sync(&ailp->xa_work);
+        kthread_stop(ailp->xa_task);
         kmem_free(ailp);
 }
diff --git a/fs/xfs/xfs_trans_priv.h b/fs/xfs/xfs_trans_priv.h
index 0a6eec6d472a..44820b9fcb43 100644
--- a/fs/xfs/xfs_trans_priv.h
+++ b/fs/xfs/xfs_trans_priv.h
@@ -64,24 +64,18 @@ struct xfs_ail_cursor {
  */
 struct xfs_ail {
         struct xfs_mount        *xa_mount;
+        struct task_struct      *xa_task;
         struct list_head        xa_ail;
         xfs_lsn_t               xa_target;
         struct list_head        xa_cursors;
         spinlock_t              xa_lock;
-        struct delayed_work     xa_work;
         xfs_lsn_t               xa_last_pushed_lsn;
-        unsigned long           xa_flags;
         int                     xa_log_flush;
 };
 
-#define XFS_AIL_PUSHING_BIT     0
-
 /*
  * From xfs_trans_ail.c
  */
-
-extern struct workqueue_struct  *xfs_ail_wq;    /* AIL workqueue */
-
 void    xfs_trans_ail_update_bulk(struct xfs_ail *ailp,
                                 struct xfs_ail_cursor *cur,
                                 struct xfs_log_item **log_items, int nr_items,
diff --git a/include/linux/device-mapper.h b/include/linux/device-mapper.h
index 3fa1f3d90ce0..99e3e50b5c57 100644
--- a/include/linux/device-mapper.h
+++ b/include/linux/device-mapper.h
@@ -197,6 +197,11 @@ struct dm_target {
          * whether or not its underlying devices have support.
          */
         unsigned discards_supported:1;
+
+        /*
+         * Set if this target does not return zeroes on discarded blocks.
+         */
+        unsigned discard_zeroes_data_unsupported:1;
 };
 
 /* Each target can link one of these into the table */
diff --git a/kernel/sys.c b/kernel/sys.c
index 18ee1d2f6474..1dbbe695a5ef 100644
--- a/kernel/sys.c
+++ b/kernel/sys.c
@@ -1172,7 +1172,7 @@ DECLARE_RWSEM(uts_sem);
 static int override_release(char __user *release, int len)
 {
         int ret = 0;
-        char buf[len];
+        char buf[65];
 
         if (current->personality & UNAME26) {
                 char *rest = UTS_RELEASE;
diff --git a/net/bridge/br_device.c b/net/bridge/br_device.c
index 32b8f9f7f79e..ff3ed6086ce1 100644
--- a/net/bridge/br_device.c
+++ b/net/bridge/br_device.c
@@ -91,7 +91,6 @@ static int br_dev_open(struct net_device *dev)
 {
         struct net_bridge *br = netdev_priv(dev);
 
-        netif_carrier_off(dev);
         netdev_update_features(dev);
         netif_start_queue(dev);
         br_stp_enable_bridge(br);
@@ -108,8 +107,6 @@ static int br_dev_stop(struct net_device *dev)
 {
         struct net_bridge *br = netdev_priv(dev);
 
-        netif_carrier_off(dev);
-
         br_stp_disable_bridge(br);
         br_multicast_stop(br);
 
diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c
index 21fab3edb92c..d73aab3fbfc0 100644
--- a/net/ipv4/tcp_input.c
+++ b/net/ipv4/tcp_input.c
@@ -1389,9 +1389,7 @@ static int tcp_shifted_skb(struct sock *sk, struct sk_buff *skb,
 
         BUG_ON(!pcount);
 
-        /* Tweak before seqno plays */
-        if (!tcp_is_fack(tp) && tcp_is_sack(tp) && tp->lost_skb_hint &&
-            !before(TCP_SKB_CB(tp->lost_skb_hint)->seq, TCP_SKB_CB(skb)->seq))
+        if (skb == tp->lost_skb_hint)
                 tp->lost_cnt_hint += pcount;
 
         TCP_SKB_CB(prev)->end_seq += shifted;
diff --git a/net/ipv4/tcp_ipv4.c b/net/ipv4/tcp_ipv4.c
index c34f01513945..7963e03f1068 100644
--- a/net/ipv4/tcp_ipv4.c
+++ b/net/ipv4/tcp_ipv4.c
@@ -927,18 +927,21 @@ int tcp_v4_md5_do_add(struct sock *sk, __be32 addr,
                         }
                         sk_nocaps_add(sk, NETIF_F_GSO_MASK);
                 }
-                if (tcp_alloc_md5sig_pool(sk) == NULL) {
+
+                md5sig = tp->md5sig_info;
+                if (md5sig->entries4 == 0 &&
+                    tcp_alloc_md5sig_pool(sk) == NULL) {
                         kfree(newkey);
                         return -ENOMEM;
                 }
-                md5sig = tp->md5sig_info;
 
                 if (md5sig->alloced4 == md5sig->entries4) {
                         keys = kmalloc((sizeof(*keys) *
                                         (md5sig->entries4 + 1)), GFP_ATOMIC);
                         if (!keys) {
                                 kfree(newkey);
-                                tcp_free_md5sig_pool();
+                                if (md5sig->entries4 == 0)
+                                        tcp_free_md5sig_pool();
                                 return -ENOMEM;
                         }
 
@@ -982,6 +985,7 @@ int tcp_v4_md5_do_del(struct sock *sk, __be32 addr)
                                 kfree(tp->md5sig_info->keys4);
                                 tp->md5sig_info->keys4 = NULL;
                                 tp->md5sig_info->alloced4 = 0;
+                                tcp_free_md5sig_pool();
                         } else if (tp->md5sig_info->entries4 != i) {
                                 /* Need to do some manipulation */
                                 memmove(&tp->md5sig_info->keys4[i],
@@ -989,7 +993,6 @@ int tcp_v4_md5_do_del(struct sock *sk, __be32 addr)
                                         (tp->md5sig_info->entries4 - i) *
                                          sizeof(struct tcp4_md5sig_key));
                         }
-                        tcp_free_md5sig_pool();
                         return 0;
                 }
         }
diff --git a/net/ipv6/af_inet6.c b/net/ipv6/af_inet6.c
index 3b5669a2582d..d27c797f9f05 100644
--- a/net/ipv6/af_inet6.c
+++ b/net/ipv6/af_inet6.c
@@ -875,6 +875,7 @@ static struct sk_buff **ipv6_gro_receive(struct sk_buff **head,
                 skb_reset_transport_header(skb);
                 __skb_push(skb, skb_gro_offset(skb));
 
+                ops = rcu_dereference(inet6_protos[proto]);
                 if (!ops || !ops->gro_receive)
                         goto out_unlock;
 
diff --git a/net/ipv6/tcp_ipv6.c b/net/ipv6/tcp_ipv6.c
index 79cc6469508d..7b8fc5794352 100644
--- a/net/ipv6/tcp_ipv6.c
+++ b/net/ipv6/tcp_ipv6.c
@@ -591,7 +591,8 @@ static int tcp_v6_md5_do_add(struct sock *sk, const struct in6_addr *peer,
                         }
                         sk_nocaps_add(sk, NETIF_F_GSO_MASK);
                 }
-                if (tcp_alloc_md5sig_pool(sk) == NULL) {
+                if (tp->md5sig_info->entries6 == 0 &&
+                        tcp_alloc_md5sig_pool(sk) == NULL) {
                         kfree(newkey);
                         return -ENOMEM;
                 }
@@ -600,8 +601,9 @@ static int tcp_v6_md5_do_add(struct sock *sk, const struct in6_addr *peer,
                                        (tp->md5sig_info->entries6 + 1)), GFP_ATOMIC);
 
                         if (!keys) {
-                                tcp_free_md5sig_pool();
                                 kfree(newkey);
+                                if (tp->md5sig_info->entries6 == 0)
+                                        tcp_free_md5sig_pool();
                                 return -ENOMEM;
                         }
 
@@ -647,6 +649,7 @@ static int tcp_v6_md5_do_del(struct sock *sk, const struct in6_addr *peer)
                                 kfree(tp->md5sig_info->keys6);
                                 tp->md5sig_info->keys6 = NULL;
                                 tp->md5sig_info->alloced6 = 0;
+                                tcp_free_md5sig_pool();
                         } else {
                                 /* shrink the database */
                                 if (tp->md5sig_info->entries6 != i)
@@ -655,7 +658,6 @@ static int tcp_v6_md5_do_del(struct sock *sk, const struct in6_addr *peer)
                                                 (tp->md5sig_info->entries6 - i)
                                                 * sizeof (tp->md5sig_info->keys6[0]));
                         }
-                        tcp_free_md5sig_pool();
                         return 0;
                 }
         }
diff --git a/net/netfilter/ipvs/ip_vs_ctl.c b/net/netfilter/ipvs/ip_vs_ctl.c
index 2b771dc708a3..5290ac353a5e 100644
--- a/net/netfilter/ipvs/ip_vs_ctl.c
+++ b/net/netfilter/ipvs/ip_vs_ctl.c
@@ -3679,7 +3679,7 @@ int __net_init ip_vs_control_net_init(struct net *net)
         int idx;
         struct netns_ipvs *ipvs = net_ipvs(net);
 
-        ipvs->rs_lock = __RW_LOCK_UNLOCKED(ipvs->rs_lock);
+        rwlock_init(&ipvs->rs_lock);
 
         /* Initialize rs_table */
         for (idx = 0; idx < IP_VS_RTAB_SIZE; idx++)