diff options
64 files changed, 278 insertions, 186 deletions
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/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/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/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/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/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(<q_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/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/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/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++) |