commit: 3d3e7192efd56077525a8da5d9867c53bd7f0caf Author: Mike Pagano <mpagano <AT> gentoo <DOT> org> AuthorDate: Wed Nov 21 12:20:16 2018 +0000 Commit: Mike Pagano <mpagano <AT> gentoo <DOT> org> CommitDate: Wed Nov 21 12:20:16 2018 +0000 URL: https://gitweb.gentoo.org/proj/linux-patches.git/commit/?id=3d3e7192
proj/linux-patches: Linux patch 4.9.138 Signed-off-by: Mike Pagano <mpagano <AT> gentoo.org> 0000_README | 4 + 1137_linux-4.9.138.patch | 2138 ++++++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 2142 insertions(+) diff --git a/0000_README b/0000_README index f5409e3..75308be 100644 --- a/0000_README +++ b/0000_README @@ -591,6 +591,10 @@ Patch: 1136_linux-4.9.137.patch From: http://www.kernel.org Desc: Linux 4.9.137 +Patch: 1137_linux-4.9.138.patch +From: http://www.kernel.org +Desc: Linux 4.9.138 + Patch: 1500_XATTR_USER_PREFIX.patch From: https://bugs.gentoo.org/show_bug.cgi?id=470644 Desc: Support for namespace user.pax.* on tmpfs. diff --git a/1137_linux-4.9.138.patch b/1137_linux-4.9.138.patch new file mode 100644 index 0000000..4e776d3 --- /dev/null +++ b/1137_linux-4.9.138.patch @@ -0,0 +1,2138 @@ +diff --git a/Makefile b/Makefile +index 41fe3014b712..ccf2602f664d 100644 +--- a/Makefile ++++ b/Makefile +@@ -1,6 +1,6 @@ + VERSION = 4 + PATCHLEVEL = 9 +-SUBLEVEL = 137 ++SUBLEVEL = 138 + EXTRAVERSION = + NAME = Roaring Lionus + +diff --git a/arch/alpha/include/asm/termios.h b/arch/alpha/include/asm/termios.h +index 7fde0f88da88..51ed90be770a 100644 +--- a/arch/alpha/include/asm/termios.h ++++ b/arch/alpha/include/asm/termios.h +@@ -72,9 +72,15 @@ + }) + + #define user_termios_to_kernel_termios(k, u) \ +- copy_from_user(k, u, sizeof(struct termios)) ++ copy_from_user(k, u, sizeof(struct termios2)) + + #define kernel_termios_to_user_termios(u, k) \ ++ copy_to_user(u, k, sizeof(struct termios2)) ++ ++#define user_termios_to_kernel_termios_1(k, u) \ ++ copy_from_user(k, u, sizeof(struct termios)) ++ ++#define kernel_termios_to_user_termios_1(u, k) \ + copy_to_user(u, k, sizeof(struct termios)) + + #endif /* _ALPHA_TERMIOS_H */ +diff --git a/arch/alpha/include/uapi/asm/ioctls.h b/arch/alpha/include/uapi/asm/ioctls.h +index f30c94ae1bdb..7ee8ab577e11 100644 +--- a/arch/alpha/include/uapi/asm/ioctls.h ++++ b/arch/alpha/include/uapi/asm/ioctls.h +@@ -31,6 +31,11 @@ + #define TCXONC _IO('t', 30) + #define TCFLSH _IO('t', 31) + ++#define TCGETS2 _IOR('T', 42, struct termios2) ++#define TCSETS2 _IOW('T', 43, struct termios2) ++#define TCSETSW2 _IOW('T', 44, struct termios2) ++#define TCSETSF2 _IOW('T', 45, struct termios2) ++ + #define TIOCSWINSZ _IOW('t', 103, struct winsize) + #define TIOCGWINSZ _IOR('t', 104, struct winsize) + #define TIOCSTART _IO('t', 110) /* start output, like ^Q */ +diff --git a/arch/alpha/include/uapi/asm/termbits.h b/arch/alpha/include/uapi/asm/termbits.h +index 879dd3589921..483c7ec2a879 100644 +--- a/arch/alpha/include/uapi/asm/termbits.h ++++ b/arch/alpha/include/uapi/asm/termbits.h +@@ -25,6 +25,19 @@ struct termios { + speed_t c_ospeed; /* output speed */ + }; + ++/* Alpha has identical termios and termios2 */ ++ ++struct termios2 { ++ tcflag_t c_iflag; /* input mode flags */ ++ tcflag_t c_oflag; /* output mode flags */ ++ tcflag_t c_cflag; /* control mode flags */ ++ tcflag_t c_lflag; /* local mode flags */ ++ cc_t c_cc[NCCS]; /* control characters */ ++ cc_t c_line; /* line discipline (== c_cc[19]) */ ++ speed_t c_ispeed; /* input speed */ ++ speed_t c_ospeed; /* output speed */ ++}; ++ + /* Alpha has matching termios and ktermios */ + + struct ktermios { +@@ -147,6 +160,7 @@ struct ktermios { + #define B3000000 00034 + #define B3500000 00035 + #define B4000000 00036 ++#define BOTHER 00037 + + #define CSIZE 00001400 + #define CS5 00000000 +@@ -164,6 +178,9 @@ struct ktermios { + #define CMSPAR 010000000000 /* mark or space (stick) parity */ + #define CRTSCTS 020000000000 /* flow control */ + ++#define CIBAUD 07600000 ++#define IBSHIFT 16 ++ + /* c_lflag bits */ + #define ISIG 0x00000080 + #define ICANON 0x00000100 +diff --git a/arch/arm/configs/imx_v6_v7_defconfig b/arch/arm/configs/imx_v6_v7_defconfig +index 8ec4dbbb50b0..47c3fb8d4313 100644 +--- a/arch/arm/configs/imx_v6_v7_defconfig ++++ b/arch/arm/configs/imx_v6_v7_defconfig +@@ -361,6 +361,7 @@ CONFIG_ZISOFS=y + CONFIG_UDF_FS=m + CONFIG_MSDOS_FS=m + CONFIG_VFAT_FS=y ++CONFIG_TMPFS_POSIX_ACL=y + CONFIG_JFFS2_FS=y + CONFIG_UBIFS_FS=y + CONFIG_NFS_FS=y +diff --git a/arch/arm/kvm/arm.c b/arch/arm/kvm/arm.c +index 20436972537f..a670c70f4def 100644 +--- a/arch/arm/kvm/arm.c ++++ b/arch/arm/kvm/arm.c +@@ -1092,8 +1092,6 @@ static void cpu_init_hyp_mode(void *dummy) + + __cpu_init_hyp_mode(pgd_ptr, hyp_stack_ptr, vector_ptr); + __cpu_init_stage2(); +- +- kvm_arm_init_debug(); + } + + static void cpu_hyp_reinit(void) +@@ -1108,6 +1106,8 @@ static void cpu_hyp_reinit(void) + if (__hyp_get_vectors() == hyp_default_vectors) + cpu_init_hyp_mode(NULL); + } ++ ++ kvm_arm_init_debug(); + } + + static void cpu_hyp_reset(void) +diff --git a/arch/mips/include/asm/mach-loongson64/irq.h b/arch/mips/include/asm/mach-loongson64/irq.h +index d18c45c7c394..19ff9ce46c02 100644 +--- a/arch/mips/include/asm/mach-loongson64/irq.h ++++ b/arch/mips/include/asm/mach-loongson64/irq.h +@@ -9,7 +9,7 @@ + #define MIPS_CPU_IRQ_BASE 56 + + #define LOONGSON_UART_IRQ (MIPS_CPU_IRQ_BASE + 2) /* UART */ +-#define LOONGSON_HT1_IRQ (MIPS_CPU_IRQ_BASE + 3) /* HT1 */ ++#define LOONGSON_BRIDGE_IRQ (MIPS_CPU_IRQ_BASE + 3) /* CASCADE */ + #define LOONGSON_TIMER_IRQ (MIPS_CPU_IRQ_BASE + 7) /* CPU Timer */ + + #define LOONGSON_HT1_CFG_BASE loongson_sysconf.ht_control_base +diff --git a/arch/mips/kernel/crash.c b/arch/mips/kernel/crash.c +index 1723b1762297..e757f36cea6f 100644 +--- a/arch/mips/kernel/crash.c ++++ b/arch/mips/kernel/crash.c +@@ -34,6 +34,9 @@ static void crash_shutdown_secondary(void *passed_regs) + if (!cpu_online(cpu)) + return; + ++ /* We won't be sent IPIs any more. */ ++ set_cpu_online(cpu, false); ++ + local_irq_disable(); + if (!cpumask_test_cpu(cpu, &cpus_in_crash)) + crash_save_cpu(regs, cpu); +diff --git a/arch/mips/kernel/machine_kexec.c b/arch/mips/kernel/machine_kexec.c +index 59725204105c..32b567e88b02 100644 +--- a/arch/mips/kernel/machine_kexec.c ++++ b/arch/mips/kernel/machine_kexec.c +@@ -96,6 +96,9 @@ machine_kexec(struct kimage *image) + *ptr = (unsigned long) phys_to_virt(*ptr); + } + ++ /* Mark offline BEFORE disabling local irq. */ ++ set_cpu_online(smp_processor_id(), false); ++ + /* + * we do not want to be bothered. + */ +diff --git a/arch/mips/loongson64/loongson-3/irq.c b/arch/mips/loongson64/loongson-3/irq.c +index 8e7649088353..027f53e3bc81 100644 +--- a/arch/mips/loongson64/loongson-3/irq.c ++++ b/arch/mips/loongson64/loongson-3/irq.c +@@ -44,51 +44,8 @@ void mach_irq_dispatch(unsigned int pending) + } + } + +-static struct irqaction cascade_irqaction = { +- .handler = no_action, +- .flags = IRQF_NO_SUSPEND, +- .name = "cascade", +-}; +- +-static inline void mask_loongson_irq(struct irq_data *d) +-{ +- clear_c0_status(0x100 << (d->irq - MIPS_CPU_IRQ_BASE)); +- irq_disable_hazard(); +- +- /* Workaround: UART IRQ may deliver to any core */ +- if (d->irq == LOONGSON_UART_IRQ) { +- int cpu = smp_processor_id(); +- int node_id = cpu_logical_map(cpu) / loongson_sysconf.cores_per_node; +- int core_id = cpu_logical_map(cpu) % loongson_sysconf.cores_per_node; +- u64 intenclr_addr = smp_group[node_id] | +- (u64)(&LOONGSON_INT_ROUTER_INTENCLR); +- u64 introuter_lpc_addr = smp_group[node_id] | +- (u64)(&LOONGSON_INT_ROUTER_LPC); +- +- *(volatile u32 *)intenclr_addr = 1 << 10; +- *(volatile u8 *)introuter_lpc_addr = 0x10 + (1<<core_id); +- } +-} +- +-static inline void unmask_loongson_irq(struct irq_data *d) +-{ +- /* Workaround: UART IRQ may deliver to any core */ +- if (d->irq == LOONGSON_UART_IRQ) { +- int cpu = smp_processor_id(); +- int node_id = cpu_logical_map(cpu) / loongson_sysconf.cores_per_node; +- int core_id = cpu_logical_map(cpu) % loongson_sysconf.cores_per_node; +- u64 intenset_addr = smp_group[node_id] | +- (u64)(&LOONGSON_INT_ROUTER_INTENSET); +- u64 introuter_lpc_addr = smp_group[node_id] | +- (u64)(&LOONGSON_INT_ROUTER_LPC); +- +- *(volatile u32 *)intenset_addr = 1 << 10; +- *(volatile u8 *)introuter_lpc_addr = 0x10 + (1<<core_id); +- } +- +- set_c0_status(0x100 << (d->irq - MIPS_CPU_IRQ_BASE)); +- irq_enable_hazard(); +-} ++static inline void mask_loongson_irq(struct irq_data *d) { } ++static inline void unmask_loongson_irq(struct irq_data *d) { } + + /* For MIPS IRQs which shared by all cores */ + static struct irq_chip loongson_irq_chip = { +@@ -126,12 +83,11 @@ void __init mach_init_irq(void) + mips_cpu_irq_init(); + init_i8259_irqs(); + irq_set_chip_and_handler(LOONGSON_UART_IRQ, +- &loongson_irq_chip, handle_level_irq); +- +- /* setup HT1 irq */ +- setup_irq(LOONGSON_HT1_IRQ, &cascade_irqaction); ++ &loongson_irq_chip, handle_percpu_irq); ++ irq_set_chip_and_handler(LOONGSON_BRIDGE_IRQ, ++ &loongson_irq_chip, handle_percpu_irq); + +- set_c0_status(STATUSF_IP2 | STATUSF_IP6); ++ set_c0_status(STATUSF_IP2 | STATUSF_IP3 | STATUSF_IP6); + } + + #ifdef CONFIG_HOTPLUG_CPU +diff --git a/arch/mips/pci/pci-legacy.c b/arch/mips/pci/pci-legacy.c +index 014649be158d..2d6886f09ba3 100644 +--- a/arch/mips/pci/pci-legacy.c ++++ b/arch/mips/pci/pci-legacy.c +@@ -116,8 +116,12 @@ static void pcibios_scanbus(struct pci_controller *hose) + if (pci_has_flag(PCI_PROBE_ONLY)) { + pci_bus_claim_resources(bus); + } else { ++ struct pci_bus *child; ++ + pci_bus_size_bridges(bus); + pci_bus_assign_resources(bus); ++ list_for_each_entry(child, &bus->children, node) ++ pcie_bus_configure_settings(child); + } + pci_bus_add_devices(bus); + } +diff --git a/arch/parisc/kernel/hpmc.S b/arch/parisc/kernel/hpmc.S +index 0fbd0a0e1cda..e88f4e7f39f3 100644 +--- a/arch/parisc/kernel/hpmc.S ++++ b/arch/parisc/kernel/hpmc.S +@@ -83,7 +83,8 @@ END(hpmc_pim_data) + .text + + .import intr_save, code +-ENTRY_CFI(os_hpmc) ++ .align 16 ++ENTRY(os_hpmc) + .os_hpmc: + + /* +@@ -299,11 +300,14 @@ os_hpmc_6: + + b . + nop +-ENDPROC_CFI(os_hpmc) ++ .align 16 /* make function length multiple of 16 bytes */ + .os_hpmc_end: + + + __INITRODATA +- .export os_hpmc_size ++.globl os_hpmc_size ++ .align 4 ++ .type os_hpmc_size, @object ++ .size os_hpmc_size, 4 + os_hpmc_size: + .word .os_hpmc_end-.os_hpmc +diff --git a/arch/powerpc/boot/crt0.S b/arch/powerpc/boot/crt0.S +index 12866ccb5694..5c2199857aa8 100644 +--- a/arch/powerpc/boot/crt0.S ++++ b/arch/powerpc/boot/crt0.S +@@ -47,8 +47,10 @@ p_end: .long _end + p_pstack: .long _platform_stack_top + #endif + +- .weak _zimage_start + .globl _zimage_start ++ /* Clang appears to require the .weak directive to be after the symbol ++ * is defined. See https://bugs.llvm.org/show_bug.cgi?id=38921 */ ++ .weak _zimage_start + _zimage_start: + .globl _zimage_start_lib + _zimage_start_lib: +diff --git a/arch/powerpc/kernel/eeh.c b/arch/powerpc/kernel/eeh.c +index e5bfbf62827a..8336b9016ca9 100644 +--- a/arch/powerpc/kernel/eeh.c ++++ b/arch/powerpc/kernel/eeh.c +@@ -169,6 +169,11 @@ static size_t eeh_dump_dev_log(struct eeh_dev *edev, char *buf, size_t len) + int n = 0, l = 0; + char buffer[128]; + ++ if (!pdn) { ++ pr_warn("EEH: Note: No error log for absent device.\n"); ++ return 0; ++ } ++ + n += scnprintf(buf+n, len-n, "%04x:%02x:%02x.%01x\n", + edev->phb->global_number, pdn->busno, + PCI_SLOT(pdn->devfn), PCI_FUNC(pdn->devfn)); +diff --git a/arch/powerpc/mm/tlb_nohash.c b/arch/powerpc/mm/tlb_nohash.c +index 0b50019505a5..79cf21be8f6e 100644 +--- a/arch/powerpc/mm/tlb_nohash.c ++++ b/arch/powerpc/mm/tlb_nohash.c +@@ -481,6 +481,9 @@ static void setup_page_sizes(void) + for (psize = 0; psize < MMU_PAGE_COUNT; ++psize) { + struct mmu_psize_def *def = &mmu_psize_defs[psize]; + ++ if (!def->shift) ++ continue; ++ + if (tlb1ps & (1U << (def->shift - 10))) { + def->flags |= MMU_PAGE_SIZE_DIRECT; + +diff --git a/arch/xtensa/boot/Makefile b/arch/xtensa/boot/Makefile +index ca20a892021b..6c6877d628ef 100644 +--- a/arch/xtensa/boot/Makefile ++++ b/arch/xtensa/boot/Makefile +@@ -31,7 +31,7 @@ $(bootdir-y): $(addprefix $(obj)/,$(subdir-y)) \ + $(addprefix $(obj)/,$(host-progs)) + $(Q)$(MAKE) $(build)=$(obj)/$@ $(MAKECMDGOALS) + +-OBJCOPYFLAGS = --strip-all -R .comment -R .note.gnu.build-id -O binary ++OBJCOPYFLAGS = --strip-all -R .comment -R .notes -O binary + + vmlinux.bin: vmlinux FORCE + $(call if_changed,objcopy) +diff --git a/arch/xtensa/include/asm/processor.h b/arch/xtensa/include/asm/processor.h +index b42d68bfe3cf..521c1e789e6e 100644 +--- a/arch/xtensa/include/asm/processor.h ++++ b/arch/xtensa/include/asm/processor.h +@@ -24,7 +24,11 @@ + # error Linux requires the Xtensa Windowed Registers Option. + #endif + +-#define ARCH_SLAB_MINALIGN XCHAL_DATA_WIDTH ++/* Xtensa ABI requires stack alignment to be at least 16 */ ++ ++#define STACK_ALIGN (XCHAL_DATA_WIDTH > 16 ? XCHAL_DATA_WIDTH : 16) ++ ++#define ARCH_SLAB_MINALIGN STACK_ALIGN + + /* + * User space process size: 1 GB. +diff --git a/arch/xtensa/kernel/head.S b/arch/xtensa/kernel/head.S +index 23ce62e60435..27c8e07ace43 100644 +--- a/arch/xtensa/kernel/head.S ++++ b/arch/xtensa/kernel/head.S +@@ -88,9 +88,12 @@ _SetupMMU: + initialize_mmu + #if defined(CONFIG_MMU) && XCHAL_HAVE_PTP_MMU && XCHAL_HAVE_SPANNING_WAY + rsr a2, excsave1 +- movi a3, 0x08000000 ++ movi a3, XCHAL_KSEG_PADDR ++ bltu a2, a3, 1f ++ sub a2, a2, a3 ++ movi a3, XCHAL_KSEG_SIZE + bgeu a2, a3, 1f +- movi a3, 0xd0000000 ++ movi a3, XCHAL_KSEG_CACHED_VADDR + add a2, a2, a3 + wsr a2, excsave1 + 1: +diff --git a/arch/xtensa/kernel/vmlinux.lds.S b/arch/xtensa/kernel/vmlinux.lds.S +index 31411fc82662..e8358ea0a9f9 100644 +--- a/arch/xtensa/kernel/vmlinux.lds.S ++++ b/arch/xtensa/kernel/vmlinux.lds.S +@@ -109,6 +109,7 @@ SECTIONS + .fixup : { *(.fixup) } + + EXCEPTION_TABLE(16) ++ NOTES + /* Data section */ + + _sdata = .; +diff --git a/drivers/cdrom/cdrom.c b/drivers/cdrom/cdrom.c +index 987e8f503522..ff4280800cd0 100644 +--- a/drivers/cdrom/cdrom.c ++++ b/drivers/cdrom/cdrom.c +@@ -2435,7 +2435,7 @@ static int cdrom_ioctl_select_disc(struct cdrom_device_info *cdi, + return -ENOSYS; + + if (arg != CDSL_CURRENT && arg != CDSL_NONE) { +- if ((int)arg >= cdi->capacity) ++ if (arg >= cdi->capacity) + return -EINVAL; + } + +diff --git a/drivers/clk/at91/clk-pll.c b/drivers/clk/at91/clk-pll.c +index 2bb2551c6245..a17a428fa706 100644 +--- a/drivers/clk/at91/clk-pll.c ++++ b/drivers/clk/at91/clk-pll.c +@@ -133,6 +133,9 @@ static unsigned long clk_pll_recalc_rate(struct clk_hw *hw, + { + struct clk_pll *pll = to_clk_pll(hw); + ++ if (!pll->div || !pll->mul) ++ return 0; ++ + return (parent_rate / pll->div) * (pll->mul + 1); + } + +diff --git a/drivers/clk/clk-s2mps11.c b/drivers/clk/clk-s2mps11.c +index fbaa84a33c46..14071a57c926 100644 +--- a/drivers/clk/clk-s2mps11.c ++++ b/drivers/clk/clk-s2mps11.c +@@ -245,6 +245,36 @@ static const struct platform_device_id s2mps11_clk_id[] = { + }; + MODULE_DEVICE_TABLE(platform, s2mps11_clk_id); + ++#ifdef CONFIG_OF ++/* ++ * Device is instantiated through parent MFD device and device matching is done ++ * through platform_device_id. ++ * ++ * However if device's DT node contains proper clock compatible and driver is ++ * built as a module, then the *module* matching will be done trough DT aliases. ++ * This requires of_device_id table. In the same time this will not change the ++ * actual *device* matching so do not add .of_match_table. ++ */ ++static const struct of_device_id s2mps11_dt_match[] = { ++ { ++ .compatible = "samsung,s2mps11-clk", ++ .data = (void *)S2MPS11X, ++ }, { ++ .compatible = "samsung,s2mps13-clk", ++ .data = (void *)S2MPS13X, ++ }, { ++ .compatible = "samsung,s2mps14-clk", ++ .data = (void *)S2MPS14X, ++ }, { ++ .compatible = "samsung,s5m8767-clk", ++ .data = (void *)S5M8767X, ++ }, { ++ /* Sentinel */ ++ }, ++}; ++MODULE_DEVICE_TABLE(of, s2mps11_dt_match); ++#endif ++ + static struct platform_driver s2mps11_clk_driver = { + .driver = { + .name = "s2mps11-clk", +diff --git a/drivers/clk/hisilicon/reset.c b/drivers/clk/hisilicon/reset.c +index 2a5015c736ce..43e82fa64422 100644 +--- a/drivers/clk/hisilicon/reset.c ++++ b/drivers/clk/hisilicon/reset.c +@@ -109,9 +109,8 @@ struct hisi_reset_controller *hisi_reset_init(struct platform_device *pdev) + return NULL; + + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); +- rstc->membase = devm_ioremap(&pdev->dev, +- res->start, resource_size(res)); +- if (!rstc->membase) ++ rstc->membase = devm_ioremap_resource(&pdev->dev, res); ++ if (IS_ERR(rstc->membase)) + return NULL; + + spin_lock_init(&rstc->lock); +diff --git a/drivers/clk/rockchip/clk-ddr.c b/drivers/clk/rockchip/clk-ddr.c +index e8075359366b..ebce5260068b 100644 +--- a/drivers/clk/rockchip/clk-ddr.c ++++ b/drivers/clk/rockchip/clk-ddr.c +@@ -80,16 +80,12 @@ static long rockchip_ddrclk_sip_round_rate(struct clk_hw *hw, + static u8 rockchip_ddrclk_get_parent(struct clk_hw *hw) + { + struct rockchip_ddrclk *ddrclk = to_rockchip_ddrclk_hw(hw); +- int num_parents = clk_hw_get_num_parents(hw); + u32 val; + + val = clk_readl(ddrclk->reg_base + + ddrclk->mux_offset) >> ddrclk->mux_shift; + val &= GENMASK(ddrclk->mux_width - 1, 0); + +- if (val >= num_parents) +- return -EINVAL; +- + return val; + } + +diff --git a/drivers/clocksource/i8253.c b/drivers/clocksource/i8253.c +index 0efd36e483ab..a2b545fdee81 100644 +--- a/drivers/clocksource/i8253.c ++++ b/drivers/clocksource/i8253.c +@@ -19,6 +19,13 @@ + DEFINE_RAW_SPINLOCK(i8253_lock); + EXPORT_SYMBOL(i8253_lock); + ++/* ++ * Handle PIT quirk in pit_shutdown() where zeroing the counter register ++ * restarts the PIT, negating the shutdown. On platforms with the quirk, ++ * platform specific code can set this to false. ++ */ ++bool i8253_clear_counter_on_shutdown __ro_after_init = true; ++ + #ifdef CONFIG_CLKSRC_I8253 + /* + * Since the PIT overflows every tick, its not very useful +@@ -108,8 +115,11 @@ static int pit_shutdown(struct clock_event_device *evt) + raw_spin_lock(&i8253_lock); + + outb_p(0x30, PIT_MODE); +- outb_p(0, PIT_CH0); +- outb_p(0, PIT_CH0); ++ ++ if (i8253_clear_counter_on_shutdown) { ++ outb_p(0, PIT_CH0); ++ outb_p(0, PIT_CH0); ++ } + + raw_spin_unlock(&i8253_lock); + return 0; +diff --git a/drivers/gpu/drm/drm_dp_mst_topology.c b/drivers/gpu/drm/drm_dp_mst_topology.c +index db7890cb254e..b59441d109a5 100644 +--- a/drivers/gpu/drm/drm_dp_mst_topology.c ++++ b/drivers/gpu/drm/drm_dp_mst_topology.c +@@ -1230,6 +1230,9 @@ static struct drm_dp_mst_branch *drm_dp_get_mst_branch_device(struct drm_dp_mst_ + mutex_lock(&mgr->lock); + mstb = mgr->mst_primary; + ++ if (!mstb) ++ goto out; ++ + for (i = 0; i < lct - 1; i++) { + int shift = (i % 2) ? 0 : 4; + int port_num = (rad[i / 2] >> shift) & 0xf; +diff --git a/drivers/gpu/drm/i915/intel_audio.c b/drivers/gpu/drm/i915/intel_audio.c +index 6c70a5bfd7d8..840522867436 100644 +--- a/drivers/gpu/drm/i915/intel_audio.c ++++ b/drivers/gpu/drm/i915/intel_audio.c +@@ -76,6 +76,9 @@ static const struct { + /* HDMI N/CTS table */ + #define TMDS_297M 297000 + #define TMDS_296M 296703 ++#define TMDS_594M 594000 ++#define TMDS_593M 593407 ++ + static const struct { + int sample_rate; + int clock; +@@ -96,6 +99,20 @@ static const struct { + { 176400, TMDS_297M, 18816, 247500 }, + { 192000, TMDS_296M, 23296, 281250 }, + { 192000, TMDS_297M, 20480, 247500 }, ++ { 44100, TMDS_593M, 8918, 937500 }, ++ { 44100, TMDS_594M, 9408, 990000 }, ++ { 48000, TMDS_593M, 5824, 562500 }, ++ { 48000, TMDS_594M, 6144, 594000 }, ++ { 32000, TMDS_593M, 5824, 843750 }, ++ { 32000, TMDS_594M, 3072, 445500 }, ++ { 88200, TMDS_593M, 17836, 937500 }, ++ { 88200, TMDS_594M, 18816, 990000 }, ++ { 96000, TMDS_593M, 11648, 562500 }, ++ { 96000, TMDS_594M, 12288, 594000 }, ++ { 176400, TMDS_593M, 35672, 937500 }, ++ { 176400, TMDS_594M, 37632, 990000 }, ++ { 192000, TMDS_593M, 23296, 562500 }, ++ { 192000, TMDS_594M, 24576, 594000 }, + }; + + /* get AUD_CONFIG_PIXEL_CLOCK_HDMI_* value for mode */ +diff --git a/drivers/gpu/drm/i915/intel_lrc.c b/drivers/gpu/drm/i915/intel_lrc.c +index 67db1577ee49..fd11be6b23b9 100644 +--- a/drivers/gpu/drm/i915/intel_lrc.c ++++ b/drivers/gpu/drm/i915/intel_lrc.c +@@ -368,7 +368,8 @@ static u64 execlists_update_context(struct drm_i915_gem_request *rq) + + reg_state[CTX_RING_TAIL+1] = intel_ring_offset(rq->ring, rq->tail); + +- /* True 32b PPGTT with dynamic page allocation: update PDP ++ /* ++ * True 32b PPGTT with dynamic page allocation: update PDP + * registers and point the unallocated PDPs to scratch page. + * PML4 is allocated during ppgtt init, so this is not needed + * in 48-bit mode. +@@ -376,6 +377,17 @@ static u64 execlists_update_context(struct drm_i915_gem_request *rq) + if (ppgtt && !USES_FULL_48BIT_PPGTT(ppgtt->base.dev)) + execlists_update_context_pdps(ppgtt, reg_state); + ++ /* ++ * Make sure the context image is complete before we submit it to HW. ++ * ++ * Ostensibly, writes (including the WCB) should be flushed prior to ++ * an uncached write such as our mmio register access, the empirical ++ * evidence (esp. on Braswell) suggests that the WC write into memory ++ * may not be visible to the HW prior to the completion of the UC ++ * register write and that we may begin execution from the context ++ * before its image is complete leading to invalid PD chasing. ++ */ ++ wmb(); + return ce->lrc_desc; + } + +diff --git a/drivers/gpu/drm/omapdrm/omap_dmm_tiler.c b/drivers/gpu/drm/omapdrm/omap_dmm_tiler.c +index 7def04049498..6a0b25e0823f 100644 +--- a/drivers/gpu/drm/omapdrm/omap_dmm_tiler.c ++++ b/drivers/gpu/drm/omapdrm/omap_dmm_tiler.c +@@ -273,6 +273,17 @@ static int dmm_txn_commit(struct dmm_txn *txn, bool wait) + } + + txn->last_pat->next_pa = 0; ++ /* ensure that the written descriptors are visible to DMM */ ++ wmb(); ++ ++ /* ++ * NOTE: the wmb() above should be enough, but there seems to be a bug ++ * in OMAP's memory barrier implementation, which in some rare cases may ++ * cause the writes not to be observable after wmb(). ++ */ ++ ++ /* read back to ensure the data is in RAM */ ++ readl(&txn->last_pat->next_pa); + + /* write to PAT_DESCR to clear out any pending transaction */ + dmm_write(dmm, 0x0, reg[PAT_DESCR][engine->id]); +diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_drv.c b/drivers/gpu/drm/rockchip/rockchip_drm_drv.c +index 8c8cbe837e61..f2033ab36f37 100644 +--- a/drivers/gpu/drm/rockchip/rockchip_drm_drv.c ++++ b/drivers/gpu/drm/rockchip/rockchip_drm_drv.c +@@ -478,6 +478,11 @@ static int rockchip_drm_platform_remove(struct platform_device *pdev) + return 0; + } + ++static void rockchip_drm_platform_shutdown(struct platform_device *pdev) ++{ ++ rockchip_drm_platform_remove(pdev); ++} ++ + static const struct of_device_id rockchip_drm_dt_ids[] = { + { .compatible = "rockchip,display-subsystem", }, + { /* sentinel */ }, +@@ -487,6 +492,7 @@ MODULE_DEVICE_TABLE(of, rockchip_drm_dt_ids); + static struct platform_driver rockchip_drm_platform_driver = { + .probe = rockchip_drm_platform_probe, + .remove = rockchip_drm_platform_remove, ++ .shutdown = rockchip_drm_platform_shutdown, + .driver = { + .name = "rockchip-drm", + .of_match_table = rockchip_drm_dt_ids, +diff --git a/drivers/media/i2c/tvp5150.c b/drivers/media/i2c/tvp5150.c +index 5d9c2b03d83a..e83f8111a5fb 100644 +--- a/drivers/media/i2c/tvp5150.c ++++ b/drivers/media/i2c/tvp5150.c +@@ -897,9 +897,6 @@ static int tvp5150_set_selection(struct v4l2_subdev *sd, + + /* tvp5150 has some special limits */ + rect.left = clamp(rect.left, 0, TVP5150_MAX_CROP_LEFT); +- rect.width = clamp_t(unsigned int, rect.width, +- TVP5150_H_MAX - TVP5150_MAX_CROP_LEFT - rect.left, +- TVP5150_H_MAX - rect.left); + rect.top = clamp(rect.top, 0, TVP5150_MAX_CROP_TOP); + + /* Calculate height based on current standard */ +@@ -913,9 +910,16 @@ static int tvp5150_set_selection(struct v4l2_subdev *sd, + else + hmax = TVP5150_V_MAX_OTHERS; + +- rect.height = clamp_t(unsigned int, rect.height, ++ /* ++ * alignments: ++ * - width = 2 due to UYVY colorspace ++ * - height, image = no special alignment ++ */ ++ v4l_bound_align_image(&rect.width, ++ TVP5150_H_MAX - TVP5150_MAX_CROP_LEFT - rect.left, ++ TVP5150_H_MAX - rect.left, 1, &rect.height, + hmax - TVP5150_MAX_CROP_TOP - rect.top, +- hmax - rect.top); ++ hmax - rect.top, 0, 0); + + tvp5150_write(sd, TVP5150_VERT_BLANKING_START, rect.top); + tvp5150_write(sd, TVP5150_VERT_BLANKING_STOP, +diff --git a/drivers/media/pci/cx23885/altera-ci.c b/drivers/media/pci/cx23885/altera-ci.c +index aaf4e46ff3e9..a0c1ff97f905 100644 +--- a/drivers/media/pci/cx23885/altera-ci.c ++++ b/drivers/media/pci/cx23885/altera-ci.c +@@ -660,6 +660,10 @@ static int altera_hw_filt_init(struct altera_ci_config *config, int hw_filt_nr) + } + + temp_int = append_internal(inter); ++ if (!temp_int) { ++ ret = -ENOMEM; ++ goto err; ++ } + inter->filts_used = 1; + inter->dev = config->dev; + inter->fpga_rw = config->fpga_rw; +@@ -694,6 +698,7 @@ err: + __func__, ret); + + kfree(pid_filt); ++ kfree(inter); + + return ret; + } +@@ -728,6 +733,10 @@ int altera_ci_init(struct altera_ci_config *config, int ci_nr) + } + + temp_int = append_internal(inter); ++ if (!temp_int) { ++ ret = -ENOMEM; ++ goto err; ++ } + inter->cis_used = 1; + inter->dev = config->dev; + inter->fpga_rw = config->fpga_rw; +@@ -796,6 +805,7 @@ err: + ci_dbg_print("%s: Cannot initialize CI: Error %d.\n", __func__, ret); + + kfree(state); ++ kfree(inter); + + return ret; + } +diff --git a/drivers/mtd/devices/Kconfig b/drivers/mtd/devices/Kconfig +index 58329d2dacd1..75c816a5dded 100644 +--- a/drivers/mtd/devices/Kconfig ++++ b/drivers/mtd/devices/Kconfig +@@ -196,7 +196,7 @@ comment "Disk-On-Chip Device Drivers" + config MTD_DOCG3 + tristate "M-Systems Disk-On-Chip G3" + select BCH +- select BCH_CONST_PARAMS ++ select BCH_CONST_PARAMS if !MTD_NAND_BCH + select BITREVERSE + ---help--- + This provides an MTD device driver for the M-Systems DiskOnChip +diff --git a/drivers/net/ethernet/brocade/bna/bnad_ethtool.c b/drivers/net/ethernet/brocade/bna/bnad_ethtool.c +index 31f61a744d66..9473d12ce239 100644 +--- a/drivers/net/ethernet/brocade/bna/bnad_ethtool.c ++++ b/drivers/net/ethernet/brocade/bna/bnad_ethtool.c +@@ -541,8 +541,8 @@ bnad_get_strings(struct net_device *netdev, u32 stringset, u8 *string) + for (i = 0; i < BNAD_ETHTOOL_STATS_NUM; i++) { + BUG_ON(!(strlen(bnad_net_stats_strings[i]) < + ETH_GSTRING_LEN)); +- memcpy(string, bnad_net_stats_strings[i], +- ETH_GSTRING_LEN); ++ strncpy(string, bnad_net_stats_strings[i], ++ ETH_GSTRING_LEN); + string += ETH_GSTRING_LEN; + } + bmap = bna_tx_rid_mask(&bnad->bna); +diff --git a/drivers/net/ethernet/intel/e1000/e1000_ethtool.c b/drivers/net/ethernet/intel/e1000/e1000_ethtool.c +index e84574b1eae7..2a81f6d72140 100644 +--- a/drivers/net/ethernet/intel/e1000/e1000_ethtool.c ++++ b/drivers/net/ethernet/intel/e1000/e1000_ethtool.c +@@ -1826,11 +1826,12 @@ static void e1000_get_ethtool_stats(struct net_device *netdev, + { + struct e1000_adapter *adapter = netdev_priv(netdev); + int i; +- char *p = NULL; + const struct e1000_stats *stat = e1000_gstrings_stats; + + e1000_update_stats(adapter); +- for (i = 0; i < E1000_GLOBAL_STATS_LEN; i++) { ++ for (i = 0; i < E1000_GLOBAL_STATS_LEN; i++, stat++) { ++ char *p; ++ + switch (stat->type) { + case NETDEV_STATS: + p = (char *)netdev + stat->stat_offset; +@@ -1841,15 +1842,13 @@ static void e1000_get_ethtool_stats(struct net_device *netdev, + default: + WARN_ONCE(1, "Invalid E1000 stat type: %u index %d\n", + stat->type, i); +- break; ++ continue; + } + + if (stat->sizeof_stat == sizeof(u64)) + data[i] = *(u64 *)p; + else + data[i] = *(u32 *)p; +- +- stat++; + } + /* BUG_ON(i != E1000_STATS_LEN); */ + } +diff --git a/drivers/net/ethernet/intel/e1000/e1000_main.c b/drivers/net/ethernet/intel/e1000/e1000_main.c +index dd112aa5cebb..39a09e18c1b7 100644 +--- a/drivers/net/ethernet/intel/e1000/e1000_main.c ++++ b/drivers/net/ethernet/intel/e1000/e1000_main.c +@@ -521,8 +521,6 @@ void e1000_down(struct e1000_adapter *adapter) + struct net_device *netdev = adapter->netdev; + u32 rctl, tctl; + +- netif_carrier_off(netdev); +- + /* disable receives in the hardware */ + rctl = er32(RCTL); + ew32(RCTL, rctl & ~E1000_RCTL_EN); +@@ -538,6 +536,15 @@ void e1000_down(struct e1000_adapter *adapter) + E1000_WRITE_FLUSH(); + msleep(10); + ++ /* Set the carrier off after transmits have been disabled in the ++ * hardware, to avoid race conditions with e1000_watchdog() (which ++ * may be running concurrently to us, checking for the carrier ++ * bit to decide whether it should enable transmits again). Such ++ * a race condition would result into transmission being disabled ++ * in the hardware until the next IFF_DOWN+IFF_UP cycle. ++ */ ++ netif_carrier_off(netdev); ++ + napi_disable(&adapter->napi); + + e1000_irq_disable(adapter); +diff --git a/drivers/of/of_numa.c b/drivers/of/of_numa.c +index 2db1f7a04baf..0b29ee9ee8c3 100644 +--- a/drivers/of/of_numa.c ++++ b/drivers/of/of_numa.c +@@ -126,9 +126,14 @@ static int __init of_numa_parse_distance_map_v1(struct device_node *map) + distance = of_read_number(matrix, 1); + matrix++; + ++ if ((nodea == nodeb && distance != LOCAL_DISTANCE) || ++ (nodea != nodeb && distance <= LOCAL_DISTANCE)) { ++ pr_err("Invalid distance[node%d -> node%d] = %d\n", ++ nodea, nodeb, distance); ++ return -EINVAL; ++ } ++ + numa_set_distance(nodea, nodeb, distance); +- pr_debug("distance[node%d -> node%d] = %d\n", +- nodea, nodeb, distance); + + /* Set default distance of node B->A same as A->B */ + if (nodeb > nodea) +diff --git a/drivers/rtc/hctosys.c b/drivers/rtc/hctosys.c +index e79f2a181ad2..b9ec4a16db1f 100644 +--- a/drivers/rtc/hctosys.c ++++ b/drivers/rtc/hctosys.c +@@ -50,8 +50,10 @@ static int __init rtc_hctosys(void) + tv64.tv_sec = rtc_tm_to_time64(&tm); + + #if BITS_PER_LONG == 32 +- if (tv64.tv_sec > INT_MAX) ++ if (tv64.tv_sec > INT_MAX) { ++ err = -ERANGE; + goto err_read; ++ } + #endif + + err = do_settimeofday64(&tv64); +diff --git a/drivers/scsi/qla2xxx/qla_init.c b/drivers/scsi/qla2xxx/qla_init.c +index b6d9e3104b89..2e3a70a6b300 100644 +--- a/drivers/scsi/qla2xxx/qla_init.c ++++ b/drivers/scsi/qla2xxx/qla_init.c +@@ -4894,7 +4894,7 @@ qla2x00_abort_isp(scsi_qla_host_t *vha) + * The next call disables the board + * completely. + */ +- ha->isp_ops->reset_adapter(vha); ++ qla2x00_abort_isp_cleanup(vha); + vha->flags.online = 0; + clear_bit(ISP_ABORT_RETRY, + &vha->dpc_flags); +diff --git a/drivers/scsi/qla2xxx/qla_mbx.c b/drivers/scsi/qla2xxx/qla_mbx.c +index a1b01d66c9ab..bf29ad454118 100644 +--- a/drivers/scsi/qla2xxx/qla_mbx.c ++++ b/drivers/scsi/qla2xxx/qla_mbx.c +@@ -3580,10 +3580,7 @@ qla2x00_set_idma_speed(scsi_qla_host_t *vha, uint16_t loop_id, + mcp->mb[0] = MBC_PORT_PARAMS; + mcp->mb[1] = loop_id; + mcp->mb[2] = BIT_0; +- if (IS_CNA_CAPABLE(vha->hw)) +- mcp->mb[3] = port_speed & (BIT_5|BIT_4|BIT_3|BIT_2|BIT_1|BIT_0); +- else +- mcp->mb[3] = port_speed & (BIT_2|BIT_1|BIT_0); ++ mcp->mb[3] = port_speed & (BIT_5|BIT_4|BIT_3|BIT_2|BIT_1|BIT_0); + mcp->mb[9] = vha->vp_idx; + mcp->out_mb = MBX_9|MBX_3|MBX_2|MBX_1|MBX_0; + mcp->in_mb = MBX_3|MBX_1|MBX_0; +diff --git a/drivers/tty/serial/sc16is7xx.c b/drivers/tty/serial/sc16is7xx.c +index 793395451982..ea6b62cece88 100644 +--- a/drivers/tty/serial/sc16is7xx.c ++++ b/drivers/tty/serial/sc16is7xx.c +@@ -661,7 +661,7 @@ static void sc16is7xx_handle_tx(struct uart_port *port) + uart_write_wakeup(port); + } + +-static void sc16is7xx_port_irq(struct sc16is7xx_port *s, int portno) ++static bool sc16is7xx_port_irq(struct sc16is7xx_port *s, int portno) + { + struct uart_port *port = &s->p[portno].port; + +@@ -670,7 +670,7 @@ static void sc16is7xx_port_irq(struct sc16is7xx_port *s, int portno) + + iir = sc16is7xx_port_read(port, SC16IS7XX_IIR_REG); + if (iir & SC16IS7XX_IIR_NO_INT_BIT) +- break; ++ return false; + + iir &= SC16IS7XX_IIR_ID_MASK; + +@@ -692,16 +692,23 @@ static void sc16is7xx_port_irq(struct sc16is7xx_port *s, int portno) + port->line, iir); + break; + } +- } while (1); ++ } while (0); ++ return true; + } + + static void sc16is7xx_ist(struct kthread_work *ws) + { + struct sc16is7xx_port *s = to_sc16is7xx_port(ws, irq_work); +- int i; + +- for (i = 0; i < s->devtype->nr_uart; ++i) +- sc16is7xx_port_irq(s, i); ++ while (1) { ++ bool keep_polling = false; ++ int i; ++ ++ for (i = 0; i < s->devtype->nr_uart; ++i) ++ keep_polling |= sc16is7xx_port_irq(s, i); ++ if (!keep_polling) ++ break; ++ } + } + + static irqreturn_t sc16is7xx_irq(int irq, void *dev_id) +diff --git a/drivers/tty/tty_io.c b/drivers/tty/tty_io.c +index e6429d419b80..e6c4321d695c 100644 +--- a/drivers/tty/tty_io.c ++++ b/drivers/tty/tty_io.c +@@ -354,7 +354,7 @@ struct tty_driver *tty_find_polling_driver(char *name, int *line) + mutex_lock(&tty_mutex); + /* Search through the tty devices to look for a match */ + list_for_each_entry(p, &tty_drivers, tty_drivers) { +- if (strncmp(name, p->name, len) != 0) ++ if (!len || strncmp(name, p->name, len) != 0) + continue; + stp = str; + if (*stp == ',') +diff --git a/drivers/tty/tty_ioctl.c b/drivers/tty/tty_ioctl.c +index bf36ac9aee41..11bb9a5c700d 100644 +--- a/drivers/tty/tty_ioctl.c ++++ b/drivers/tty/tty_ioctl.c +@@ -325,7 +325,7 @@ speed_t tty_termios_baud_rate(struct ktermios *termios) + else + cbaud += 15; + } +- return baud_table[cbaud]; ++ return cbaud >= n_baud_table ? 0 : baud_table[cbaud]; + } + EXPORT_SYMBOL(tty_termios_baud_rate); + +@@ -361,7 +361,7 @@ speed_t tty_termios_input_baud_rate(struct ktermios *termios) + else + cbaud += 15; + } +- return baud_table[cbaud]; ++ return cbaud >= n_baud_table ? 0 : baud_table[cbaud]; + #else + return tty_termios_baud_rate(termios); + #endif +diff --git a/drivers/vhost/scsi.c b/drivers/vhost/scsi.c +index 9e36632b6f0e..17f9ad6fdfa5 100644 +--- a/drivers/vhost/scsi.c ++++ b/drivers/vhost/scsi.c +@@ -999,7 +999,8 @@ vhost_scsi_handle_vq(struct vhost_scsi *vs, struct vhost_virtqueue *vq) + prot_bytes = vhost32_to_cpu(vq, v_req_pi.pi_bytesin); + } + /* +- * Set prot_iter to data_iter, and advance past any ++ * Set prot_iter to data_iter and truncate it to ++ * prot_bytes, and advance data_iter past any + * preceeding prot_bytes that may be present. + * + * Also fix up the exp_data_len to reflect only the +@@ -1008,6 +1009,7 @@ vhost_scsi_handle_vq(struct vhost_scsi *vs, struct vhost_virtqueue *vq) + if (prot_bytes) { + exp_data_len -= prot_bytes; + prot_iter = data_iter; ++ iov_iter_truncate(&prot_iter, prot_bytes); + iov_iter_advance(&data_iter, prot_bytes); + } + tag = vhost64_to_cpu(vq, v_req_pi.tag); +diff --git a/drivers/video/fbdev/aty/mach64_accel.c b/drivers/video/fbdev/aty/mach64_accel.c +index 182bd680141f..e9dfe0e40b8b 100644 +--- a/drivers/video/fbdev/aty/mach64_accel.c ++++ b/drivers/video/fbdev/aty/mach64_accel.c +@@ -126,7 +126,7 @@ void aty_init_engine(struct atyfb_par *par, struct fb_info *info) + + /* set host attributes */ + wait_for_fifo(13, par); +- aty_st_le32(HOST_CNTL, 0, par); ++ aty_st_le32(HOST_CNTL, HOST_BYTE_ALIGN, par); + + /* set pattern attributes */ + aty_st_le32(PAT_REG0, 0, par); +@@ -232,7 +232,8 @@ void atyfb_copyarea(struct fb_info *info, const struct fb_copyarea *area) + rotation = rotation24bpp(dx, direction); + } + +- wait_for_fifo(4, par); ++ wait_for_fifo(5, par); ++ aty_st_le32(DP_PIX_WIDTH, par->crtc.dp_pix_width, par); + aty_st_le32(DP_SRC, FRGD_SRC_BLIT, par); + aty_st_le32(SRC_Y_X, (sx << 16) | sy, par); + aty_st_le32(SRC_HEIGHT1_WIDTH1, (width << 16) | area->height, par); +@@ -268,7 +269,8 @@ void atyfb_fillrect(struct fb_info *info, const struct fb_fillrect *rect) + rotation = rotation24bpp(dx, DST_X_LEFT_TO_RIGHT); + } + +- wait_for_fifo(3, par); ++ wait_for_fifo(4, par); ++ aty_st_le32(DP_PIX_WIDTH, par->crtc.dp_pix_width, par); + aty_st_le32(DP_FRGD_CLR, color, par); + aty_st_le32(DP_SRC, + BKGD_SRC_BKGD_CLR | FRGD_SRC_FRGD_CLR | MONO_SRC_ONE, +@@ -283,7 +285,7 @@ void atyfb_imageblit(struct fb_info *info, const struct fb_image *image) + { + struct atyfb_par *par = (struct atyfb_par *) info->par; + u32 src_bytes, dx = image->dx, dy = image->dy, width = image->width; +- u32 pix_width_save, pix_width, host_cntl, rotation = 0, src, mix; ++ u32 pix_width, rotation = 0, src, mix; + + if (par->asleep) + return; +@@ -295,8 +297,7 @@ void atyfb_imageblit(struct fb_info *info, const struct fb_image *image) + return; + } + +- pix_width = pix_width_save = aty_ld_le32(DP_PIX_WIDTH, par); +- host_cntl = aty_ld_le32(HOST_CNTL, par) | HOST_BYTE_ALIGN; ++ pix_width = par->crtc.dp_pix_width; + + switch (image->depth) { + case 1: +@@ -344,7 +345,7 @@ void atyfb_imageblit(struct fb_info *info, const struct fb_image *image) + * since Rage 3D IIc we have DP_HOST_TRIPLE_EN bit + * this hwaccelerated triple has an issue with not aligned data + */ +- if (M64_HAS(HW_TRIPLE) && image->width % 8 == 0) ++ if (image->depth == 1 && M64_HAS(HW_TRIPLE) && image->width % 8 == 0) + pix_width |= DP_HOST_TRIPLE_EN; + } + +@@ -369,19 +370,18 @@ void atyfb_imageblit(struct fb_info *info, const struct fb_image *image) + mix = FRGD_MIX_D_XOR_S | BKGD_MIX_D; + } + +- wait_for_fifo(6, par); +- aty_st_le32(DP_WRITE_MASK, 0xFFFFFFFF, par); ++ wait_for_fifo(5, par); + aty_st_le32(DP_PIX_WIDTH, pix_width, par); + aty_st_le32(DP_MIX, mix, par); + aty_st_le32(DP_SRC, src, par); +- aty_st_le32(HOST_CNTL, host_cntl, par); ++ aty_st_le32(HOST_CNTL, HOST_BYTE_ALIGN, par); + aty_st_le32(DST_CNTL, DST_Y_TOP_TO_BOTTOM | DST_X_LEFT_TO_RIGHT | rotation, par); + + draw_rect(dx, dy, width, image->height, par); + src_bytes = (((image->width * image->depth) + 7) / 8) * image->height; + + /* manual triple each pixel */ +- if (info->var.bits_per_pixel == 24 && !(pix_width & DP_HOST_TRIPLE_EN)) { ++ if (image->depth == 1 && info->var.bits_per_pixel == 24 && !(pix_width & DP_HOST_TRIPLE_EN)) { + int inbit, outbit, mult24, byte_id_in_dword, width; + u8 *pbitmapin = (u8*)image->data, *pbitmapout; + u32 hostdword; +@@ -414,7 +414,7 @@ void atyfb_imageblit(struct fb_info *info, const struct fb_image *image) + } + } + wait_for_fifo(1, par); +- aty_st_le32(HOST_DATA0, hostdword, par); ++ aty_st_le32(HOST_DATA0, le32_to_cpu(hostdword), par); + } + } else { + u32 *pbitmap, dwords = (src_bytes + 3) / 4; +@@ -423,8 +423,4 @@ void atyfb_imageblit(struct fb_info *info, const struct fb_image *image) + aty_st_le32(HOST_DATA0, get_unaligned_le32(pbitmap), par); + } + } +- +- /* restore pix_width */ +- wait_for_fifo(1, par); +- aty_st_le32(DP_PIX_WIDTH, pix_width_save, par); + } +diff --git a/fs/9p/vfs_file.c b/fs/9p/vfs_file.c +index d7b78d531e63..398a3eddb2df 100644 +--- a/fs/9p/vfs_file.c ++++ b/fs/9p/vfs_file.c +@@ -204,6 +204,14 @@ static int v9fs_file_do_lock(struct file *filp, int cmd, struct file_lock *fl) + break; + if (schedule_timeout_interruptible(P9_LOCK_TIMEOUT) != 0) + break; ++ /* ++ * p9_client_lock_dotl overwrites flock.client_id with the ++ * server message, free and reuse the client name ++ */ ++ if (flock.client_id != fid->clnt->name) { ++ kfree(flock.client_id); ++ flock.client_id = fid->clnt->name; ++ } + } + + /* map 9p status to VFS status */ +@@ -235,6 +243,8 @@ out_unlock: + locks_lock_file_wait(filp, fl); + fl->fl_type = fl_type; + } ++ if (flock.client_id != fid->clnt->name) ++ kfree(flock.client_id); + out: + return res; + } +@@ -269,7 +279,7 @@ static int v9fs_file_getlock(struct file *filp, struct file_lock *fl) + + res = p9_client_getlock_dotl(fid, &glock); + if (res < 0) +- return res; ++ goto out; + /* map 9p lock type to os lock type */ + switch (glock.type) { + case P9_LOCK_TYPE_RDLCK: +@@ -290,7 +300,9 @@ static int v9fs_file_getlock(struct file *filp, struct file_lock *fl) + fl->fl_end = glock.start + glock.length - 1; + fl->fl_pid = glock.proc_id; + } +- kfree(glock.client_id); ++out: ++ if (glock.client_id != fid->clnt->name) ++ kfree(glock.client_id); + return res; + } + +diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c +index 17e143d91fa9..1b1a9e35e082 100644 +--- a/fs/btrfs/inode.c ++++ b/fs/btrfs/inode.c +@@ -1548,12 +1548,11 @@ out_check: + } + btrfs_release_path(path); + +- if (cur_offset <= end && cow_start == (u64)-1) { ++ if (cur_offset <= end && cow_start == (u64)-1) + cow_start = cur_offset; +- cur_offset = end; +- } + + if (cow_start != (u64)-1) { ++ cur_offset = end; + ret = cow_file_range(inode, locked_page, cow_start, end, end, + page_started, nr_written, 1, NULL); + if (ret) +diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c +index cbf512b64597..96ad2778405b 100644 +--- a/fs/btrfs/ioctl.c ++++ b/fs/btrfs/ioctl.c +@@ -3911,9 +3911,17 @@ static noinline int btrfs_clone_files(struct file *file, struct file *file_src, + goto out_unlock; + if (len == 0) + olen = len = src->i_size - off; +- /* if we extend to eof, continue to block boundary */ +- if (off + len == src->i_size) ++ /* ++ * If we extend to eof, continue to block boundary if and only if the ++ * destination end offset matches the destination file's size, otherwise ++ * we would be corrupting data by placing the eof block into the middle ++ * of a file. ++ */ ++ if (off + len == src->i_size) { ++ if (!IS_ALIGNED(len, bs) && destoff + len < inode->i_size) ++ goto out_unlock; + len = ALIGN(src->i_size, bs) - off; ++ } + + if (len == 0) { + ret = 0; +diff --git a/fs/ceph/inode.c b/fs/ceph/inode.c +index 1f754336f801..30d9d9e7057d 100644 +--- a/fs/ceph/inode.c ++++ b/fs/ceph/inode.c +@@ -1077,8 +1077,12 @@ static struct dentry *splice_dentry(struct dentry *dn, struct inode *in) + if (IS_ERR(realdn)) { + pr_err("splice_dentry error %ld %p inode %p ino %llx.%llx\n", + PTR_ERR(realdn), dn, in, ceph_vinop(in)); +- dput(dn); +- dn = realdn; /* note realdn contains the error */ ++ dn = realdn; ++ /* ++ * Caller should release 'dn' in the case of error. ++ * If 'req->r_dentry' is passed to this function, ++ * caller should leave 'req->r_dentry' untouched. ++ */ + goto out; + } else if (realdn) { + dout("dn %p (%d) spliced with %p (%d) " +diff --git a/fs/configfs/symlink.c b/fs/configfs/symlink.c +index 314b4edac72b..fea6db1ee065 100644 +--- a/fs/configfs/symlink.c ++++ b/fs/configfs/symlink.c +@@ -64,7 +64,7 @@ static void fill_item_path(struct config_item * item, char * buffer, int length) + + /* back up enough to print this bus id with '/' */ + length -= cur; +- strncpy(buffer + length,config_item_name(p),cur); ++ memcpy(buffer + length, config_item_name(p), cur); + *(buffer + --length) = '/'; + } + } +diff --git a/fs/ext4/namei.c b/fs/ext4/namei.c +index bc727c393a89..3c3757ee11f0 100644 +--- a/fs/ext4/namei.c ++++ b/fs/ext4/namei.c +@@ -124,6 +124,7 @@ static struct buffer_head *__ext4_read_dirblock(struct inode *inode, + if (!is_dx_block && type == INDEX) { + ext4_error_inode(inode, func, line, block, + "directory leaf block found instead of index block"); ++ brelse(bh); + return ERR_PTR(-EFSCORRUPTED); + } + if (!ext4_has_metadata_csum(inode->i_sb) || +@@ -2842,7 +2843,9 @@ int ext4_orphan_add(handle_t *handle, struct inode *inode) + list_del_init(&EXT4_I(inode)->i_orphan); + mutex_unlock(&sbi->s_orphan_lock); + } +- } ++ } else ++ brelse(iloc.bh); ++ + jbd_debug(4, "superblock will point to %lu\n", inode->i_ino); + jbd_debug(4, "orphan inode %lu will point to %d\n", + inode->i_ino, NEXT_ORPHAN(inode)); +diff --git a/fs/ext4/resize.c b/fs/ext4/resize.c +index 1da301ee78ce..9be605c63ae1 100644 +--- a/fs/ext4/resize.c ++++ b/fs/ext4/resize.c +@@ -442,16 +442,18 @@ static int set_flexbg_block_bitmap(struct super_block *sb, handle_t *handle, + + BUFFER_TRACE(bh, "get_write_access"); + err = ext4_journal_get_write_access(handle, bh); +- if (err) ++ if (err) { ++ brelse(bh); + return err; ++ } + ext4_debug("mark block bitmap %#04llx (+%llu/%u)\n", block, + block - start, count2); + ext4_set_bits(bh->b_data, block - start, count2); + + err = ext4_handle_dirty_metadata(handle, NULL, bh); ++ brelse(bh); + if (unlikely(err)) + return err; +- brelse(bh); + } + + return 0; +@@ -588,7 +590,6 @@ handle_bb: + bh = bclean(handle, sb, block); + if (IS_ERR(bh)) { + err = PTR_ERR(bh); +- bh = NULL; + goto out; + } + overhead = ext4_group_overhead_blocks(sb, group); +@@ -600,9 +601,9 @@ handle_bb: + ext4_mark_bitmap_end(group_data[i].blocks_count, + sb->s_blocksize * 8, bh->b_data); + err = ext4_handle_dirty_metadata(handle, NULL, bh); ++ brelse(bh); + if (err) + goto out; +- brelse(bh); + + handle_ib: + if (bg_flags[i] & EXT4_BG_INODE_UNINIT) +@@ -617,18 +618,16 @@ handle_ib: + bh = bclean(handle, sb, block); + if (IS_ERR(bh)) { + err = PTR_ERR(bh); +- bh = NULL; + goto out; + } + + ext4_mark_bitmap_end(EXT4_INODES_PER_GROUP(sb), + sb->s_blocksize * 8, bh->b_data); + err = ext4_handle_dirty_metadata(handle, NULL, bh); ++ brelse(bh); + if (err) + goto out; +- brelse(bh); + } +- bh = NULL; + + /* Mark group tables in block bitmap */ + for (j = 0; j < GROUP_TABLE_COUNT; j++) { +@@ -659,7 +658,6 @@ handle_ib: + } + + out: +- brelse(bh); + err2 = ext4_journal_stop(handle); + if (err2 && !err) + err = err2; +@@ -846,6 +844,7 @@ static int add_new_gdb(handle_t *handle, struct inode *inode, + err = ext4_handle_dirty_metadata(handle, NULL, gdb_bh); + if (unlikely(err)) { + ext4_std_error(sb, err); ++ iloc.bh = NULL; + goto exit_inode; + } + brelse(dind); +@@ -897,6 +896,7 @@ static int add_new_gdb_meta_bg(struct super_block *sb, + sizeof(struct buffer_head *), + GFP_NOFS); + if (!n_group_desc) { ++ brelse(gdb_bh); + err = -ENOMEM; + ext4_warning(sb, "not enough memory for %lu groups", + gdb_num + 1); +@@ -912,8 +912,6 @@ static int add_new_gdb_meta_bg(struct super_block *sb, + kvfree(o_group_desc); + BUFFER_TRACE(gdb_bh, "get_write_access"); + err = ext4_journal_get_write_access(handle, gdb_bh); +- if (unlikely(err)) +- brelse(gdb_bh); + return err; + } + +@@ -1095,8 +1093,10 @@ static void update_backups(struct super_block *sb, sector_t blk_off, char *data, + backup_block, backup_block - + ext4_group_first_block_no(sb, group)); + BUFFER_TRACE(bh, "get_write_access"); +- if ((err = ext4_journal_get_write_access(handle, bh))) ++ if ((err = ext4_journal_get_write_access(handle, bh))) { ++ brelse(bh); + break; ++ } + lock_buffer(bh); + memcpy(bh->b_data, data, size); + if (rest) +@@ -1991,7 +1991,7 @@ retry: + + err = ext4_alloc_flex_bg_array(sb, n_group + 1); + if (err) +- return err; ++ goto out; + + err = ext4_mb_alloc_groupinfo(sb, n_group + 1); + if (err) +@@ -2027,6 +2027,10 @@ retry: + n_blocks_count_retry = 0; + free_flex_gd(flex_gd); + flex_gd = NULL; ++ if (resize_inode) { ++ iput(resize_inode); ++ resize_inode = NULL; ++ } + goto retry; + } + +diff --git a/fs/ext4/super.c b/fs/ext4/super.c +index f88d4804c3a8..75177eb498ed 100644 +--- a/fs/ext4/super.c ++++ b/fs/ext4/super.c +@@ -3897,6 +3897,14 @@ static int ext4_fill_super(struct super_block *sb, void *data, int silent) + sbi->s_groups_count = blocks_count; + sbi->s_blockfile_groups = min_t(ext4_group_t, sbi->s_groups_count, + (EXT4_MAX_BLOCK_FILE_PHYS / EXT4_BLOCKS_PER_GROUP(sb))); ++ if (((u64)sbi->s_groups_count * sbi->s_inodes_per_group) != ++ le32_to_cpu(es->s_inodes_count)) { ++ ext4_msg(sb, KERN_ERR, "inodes count not valid: %u vs %llu", ++ le32_to_cpu(es->s_inodes_count), ++ ((u64)sbi->s_groups_count * sbi->s_inodes_per_group)); ++ ret = -EINVAL; ++ goto failed_mount; ++ } + db_count = (sbi->s_groups_count + EXT4_DESC_PER_BLOCK(sb) - 1) / + EXT4_DESC_PER_BLOCK(sb); + if (ext4_has_feature_meta_bg(sb)) { +@@ -3916,14 +3924,6 @@ static int ext4_fill_super(struct super_block *sb, void *data, int silent) + ret = -ENOMEM; + goto failed_mount; + } +- if (((u64)sbi->s_groups_count * sbi->s_inodes_per_group) != +- le32_to_cpu(es->s_inodes_count)) { +- ext4_msg(sb, KERN_ERR, "inodes count not valid: %u vs %llu", +- le32_to_cpu(es->s_inodes_count), +- ((u64)sbi->s_groups_count * sbi->s_inodes_per_group)); +- ret = -EINVAL; +- goto failed_mount; +- } + + bgl_lock_init(sbi->s_blockgroup_lock); + +@@ -4305,6 +4305,7 @@ failed_mount6: + percpu_counter_destroy(&sbi->s_freeinodes_counter); + percpu_counter_destroy(&sbi->s_dirs_counter); + percpu_counter_destroy(&sbi->s_dirtyclusters_counter); ++ percpu_free_rwsem(&sbi->s_journal_flag_rwsem); + failed_mount5: + ext4_ext_release(sb); + ext4_release_system_zone(sb); +diff --git a/fs/ext4/xattr.c b/fs/ext4/xattr.c +index 38385bcb9148..22f765069655 100644 +--- a/fs/ext4/xattr.c ++++ b/fs/ext4/xattr.c +@@ -1221,6 +1221,8 @@ ext4_xattr_set_handle(handle_t *handle, struct inode *inode, int name_index, + error = ext4_xattr_block_set(handle, inode, &i, &bs); + } else if (error == -ENOSPC) { + if (EXT4_I(inode)->i_file_acl && !bs.s.base) { ++ brelse(bs.bh); ++ bs.bh = NULL; + error = ext4_xattr_block_find(inode, &i, &bs); + if (error) + goto cleanup; +@@ -1391,6 +1393,8 @@ out: + kfree(buffer); + if (is) + brelse(is->iloc.bh); ++ if (bs) ++ brelse(bs->bh); + kfree(is); + kfree(bs); + +diff --git a/fs/fuse/dev.c b/fs/fuse/dev.c +index c94bab6103f5..b4253181b5d4 100644 +--- a/fs/fuse/dev.c ++++ b/fs/fuse/dev.c +@@ -383,12 +383,19 @@ static void request_end(struct fuse_conn *fc, struct fuse_req *req) + if (test_bit(FR_BACKGROUND, &req->flags)) { + spin_lock(&fc->lock); + clear_bit(FR_BACKGROUND, &req->flags); +- if (fc->num_background == fc->max_background) ++ if (fc->num_background == fc->max_background) { + fc->blocked = 0; +- +- /* Wake up next waiter, if any */ +- if (!fc->blocked && waitqueue_active(&fc->blocked_waitq)) + wake_up(&fc->blocked_waitq); ++ } else if (!fc->blocked) { ++ /* ++ * Wake up next waiter, if any. It's okay to use ++ * waitqueue_active(), as we've already synced up ++ * fc->blocked with waiters with the wake_up() call ++ * above. ++ */ ++ if (waitqueue_active(&fc->blocked_waitq)) ++ wake_up(&fc->blocked_waitq); ++ } + + if (fc->num_background == fc->congestion_threshold && + fc->connected && fc->bdi_initialized) { +@@ -1303,12 +1310,14 @@ static ssize_t fuse_dev_do_read(struct fuse_dev *fud, struct file *file, + goto out_end; + } + list_move_tail(&req->list, &fpq->processing); +- spin_unlock(&fpq->lock); ++ __fuse_get_request(req); + set_bit(FR_SENT, &req->flags); ++ spin_unlock(&fpq->lock); + /* matches barrier in request_wait_answer() */ + smp_mb__after_atomic(); + if (test_bit(FR_INTERRUPTED, &req->flags)) + queue_interrupt(fiq, req); ++ fuse_put_request(fc, req); + + return reqsize; + +@@ -1706,8 +1715,10 @@ static int fuse_retrieve(struct fuse_conn *fc, struct inode *inode, + req->in.args[1].size = total_len; + + err = fuse_request_send_notify_reply(fc, req, outarg->notify_unique); +- if (err) ++ if (err) { + fuse_retrieve_end(fc, req); ++ fuse_put_request(fc, req); ++ } + + return err; + } +@@ -1866,16 +1877,20 @@ static ssize_t fuse_dev_do_write(struct fuse_dev *fud, + + /* Is it an interrupt reply? */ + if (req->intr_unique == oh.unique) { ++ __fuse_get_request(req); + spin_unlock(&fpq->lock); + + err = -EINVAL; +- if (nbytes != sizeof(struct fuse_out_header)) ++ if (nbytes != sizeof(struct fuse_out_header)) { ++ fuse_put_request(fc, req); + goto err_finish; ++ } + + if (oh.error == -ENOSYS) + fc->no_interrupt = 1; + else if (oh.error == -EAGAIN) + queue_interrupt(&fc->iq, req); ++ fuse_put_request(fc, req); + + fuse_copy_finish(cs); + return nbytes; +diff --git a/fs/fuse/file.c b/fs/fuse/file.c +index 4408abf6675b..1cd46e667e3d 100644 +--- a/fs/fuse/file.c ++++ b/fs/fuse/file.c +@@ -2900,10 +2900,12 @@ fuse_direct_IO(struct kiocb *iocb, struct iov_iter *iter) + } + + if (io->async) { ++ bool blocking = io->blocking; ++ + fuse_aio_complete(io, ret < 0 ? ret : 0, -1); + + /* we have a non-extending, async request, so return */ +- if (!io->blocking) ++ if (!blocking) + return -EIOCBQUEUED; + + wait_for_completion(&wait); +diff --git a/fs/namespace.c b/fs/namespace.c +index 0a9e766b4087..41f906a6f5d9 100644 +--- a/fs/namespace.c ++++ b/fs/namespace.c +@@ -1599,8 +1599,13 @@ static int do_umount(struct mount *mnt, int flags) + + namespace_lock(); + lock_mount_hash(); +- event++; + ++ /* Recheck MNT_LOCKED with the locks held */ ++ retval = -EINVAL; ++ if (mnt->mnt.mnt_flags & MNT_LOCKED) ++ goto out; ++ ++ event++; + if (flags & MNT_DETACH) { + if (!list_empty(&mnt->mnt_list)) + umount_tree(mnt, UMOUNT_PROPAGATE); +@@ -1614,6 +1619,7 @@ static int do_umount(struct mount *mnt, int flags) + retval = 0; + } + } ++out: + unlock_mount_hash(); + namespace_unlock(); + return retval; +@@ -1704,7 +1710,7 @@ SYSCALL_DEFINE2(umount, char __user *, name, int, flags) + goto dput_and_out; + if (!check_mnt(mnt)) + goto dput_and_out; +- if (mnt->mnt.mnt_flags & MNT_LOCKED) ++ if (mnt->mnt.mnt_flags & MNT_LOCKED) /* Check optimistically */ + goto dput_and_out; + retval = -EPERM; + if (flags & MNT_FORCE && !capable(CAP_SYS_ADMIN)) +@@ -1782,8 +1788,14 @@ struct mount *copy_tree(struct mount *mnt, struct dentry *dentry, + for (s = r; s; s = next_mnt(s, r)) { + if (!(flag & CL_COPY_UNBINDABLE) && + IS_MNT_UNBINDABLE(s)) { +- s = skip_mnt_tree(s); +- continue; ++ if (s->mnt.mnt_flags & MNT_LOCKED) { ++ /* Both unbindable and locked. */ ++ q = ERR_PTR(-EPERM); ++ goto out; ++ } else { ++ s = skip_mnt_tree(s); ++ continue; ++ } + } + if (!(flag & CL_COPY_MNT_NS_FILE) && + is_mnt_ns_file(s->mnt.mnt_root)) { +@@ -1836,7 +1848,7 @@ void drop_collected_mounts(struct vfsmount *mnt) + { + namespace_lock(); + lock_mount_hash(); +- umount_tree(real_mount(mnt), UMOUNT_SYNC); ++ umount_tree(real_mount(mnt), 0); + unlock_mount_hash(); + namespace_unlock(); + } +diff --git a/fs/nfsd/nfs4proc.c b/fs/nfsd/nfs4proc.c +index e9495516527d..66985a6a7047 100644 +--- a/fs/nfsd/nfs4proc.c ++++ b/fs/nfsd/nfs4proc.c +@@ -1016,6 +1016,9 @@ nfsd4_verify_copy(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, + { + __be32 status; + ++ if (!cstate->save_fh.fh_dentry) ++ return nfserr_nofilehandle; ++ + status = nfs4_preprocess_stateid_op(rqstp, cstate, &cstate->save_fh, + src_stateid, RD_STATE, src, NULL); + if (status) { +diff --git a/fs/ocfs2/dir.c b/fs/ocfs2/dir.c +index 3ecb9f337b7d..20e610419501 100644 +--- a/fs/ocfs2/dir.c ++++ b/fs/ocfs2/dir.c +@@ -1896,8 +1896,7 @@ static int ocfs2_dir_foreach_blk_el(struct inode *inode, + /* On error, skip the f_pos to the + next block. */ + ctx->pos = (ctx->pos | (sb->s_blocksize - 1)) + 1; +- brelse(bh); +- continue; ++ break; + } + if (le64_to_cpu(de->inode)) { + unsigned char d_type = DT_UNKNOWN; +diff --git a/include/linux/ceph/libceph.h b/include/linux/ceph/libceph.h +index 1816c5e26581..a8a574897d3c 100644 +--- a/include/linux/ceph/libceph.h ++++ b/include/linux/ceph/libceph.h +@@ -77,7 +77,13 @@ struct ceph_options { + + #define CEPH_MSG_MAX_FRONT_LEN (16*1024*1024) + #define CEPH_MSG_MAX_MIDDLE_LEN (16*1024*1024) +-#define CEPH_MSG_MAX_DATA_LEN (16*1024*1024) ++ ++/* ++ * Handle the largest possible rbd object in one message. ++ * There is no limit on the size of cephfs objects, but it has to obey ++ * rsize and wsize mount options anyway. ++ */ ++#define CEPH_MSG_MAX_DATA_LEN (32*1024*1024) + + #define CEPH_AUTH_NAME_DEFAULT "guest" + +diff --git a/include/linux/hugetlb.h b/include/linux/hugetlb.h +index 48c76d612d40..b699d59d0f4f 100644 +--- a/include/linux/hugetlb.h ++++ b/include/linux/hugetlb.h +@@ -109,6 +109,8 @@ pte_t *huge_pte_alloc(struct mm_struct *mm, + unsigned long addr, unsigned long sz); + pte_t *huge_pte_offset(struct mm_struct *mm, unsigned long addr); + int huge_pmd_unshare(struct mm_struct *mm, unsigned long *addr, pte_t *ptep); ++void adjust_range_if_pmd_sharing_possible(struct vm_area_struct *vma, ++ unsigned long *start, unsigned long *end); + struct page *follow_huge_addr(struct mm_struct *mm, unsigned long address, + int write); + struct page *follow_huge_pmd(struct mm_struct *mm, unsigned long address, +@@ -131,6 +133,18 @@ static inline unsigned long hugetlb_total_pages(void) + return 0; + } + ++static inline int huge_pmd_unshare(struct mm_struct *mm, unsigned long *addr, ++ pte_t *ptep) ++{ ++ return 0; ++} ++ ++static inline void adjust_range_if_pmd_sharing_possible( ++ struct vm_area_struct *vma, ++ unsigned long *start, unsigned long *end) ++{ ++} ++ + #define follow_hugetlb_page(m,v,p,vs,a,b,i,w) ({ BUG(); 0; }) + #define follow_huge_addr(mm, addr, write) ERR_PTR(-EINVAL) + #define copy_hugetlb_page_range(src, dst, vma) ({ BUG(); 0; }) +diff --git a/include/linux/i8253.h b/include/linux/i8253.h +index e6bb36a97519..8336b2f6f834 100644 +--- a/include/linux/i8253.h ++++ b/include/linux/i8253.h +@@ -21,6 +21,7 @@ + #define PIT_LATCH ((PIT_TICK_RATE + HZ/2) / HZ) + + extern raw_spinlock_t i8253_lock; ++extern bool i8253_clear_counter_on_shutdown; + extern struct clock_event_device i8253_clockevent; + extern void clockevent_i8253_init(bool oneshot); + +diff --git a/include/linux/mm.h b/include/linux/mm.h +index 493d07931ea5..11a5a46ce72b 100644 +--- a/include/linux/mm.h ++++ b/include/linux/mm.h +@@ -2187,6 +2187,12 @@ static inline struct vm_area_struct *find_exact_vma(struct mm_struct *mm, + return vma; + } + ++static inline bool range_in_vma(struct vm_area_struct *vma, ++ unsigned long start, unsigned long end) ++{ ++ return (vma && vma->vm_start <= start && end <= vma->vm_end); ++} ++ + #ifdef CONFIG_MMU + pgprot_t vm_get_page_prot(unsigned long vm_flags); + void vma_set_page_prot(struct vm_area_struct *vma); +diff --git a/lib/ubsan.c b/lib/ubsan.c +index 50d1d5c25deb..60e108c5c173 100644 +--- a/lib/ubsan.c ++++ b/lib/ubsan.c +@@ -451,8 +451,7 @@ void __ubsan_handle_shift_out_of_bounds(struct shift_out_of_bounds_data *data, + EXPORT_SYMBOL(__ubsan_handle_shift_out_of_bounds); + + +-void __noreturn +-__ubsan_handle_builtin_unreachable(struct unreachable_data *data) ++void __ubsan_handle_builtin_unreachable(struct unreachable_data *data) + { + unsigned long flags; + +diff --git a/mm/gup.c b/mm/gup.c +index be4ccddac26f..d71da7216c6e 100644 +--- a/mm/gup.c ++++ b/mm/gup.c +@@ -1122,8 +1122,6 @@ int __mm_populate(unsigned long start, unsigned long len, int ignore_errors) + int locked = 0; + long ret = 0; + +- VM_BUG_ON(start & ~PAGE_MASK); +- VM_BUG_ON(len != PAGE_ALIGN(len)); + end = start + len; + + for (nstart = start; nstart < end; nstart = nend) { +diff --git a/mm/hugetlb.c b/mm/hugetlb.c +index 9c566e4b06ce..5e3a4db36310 100644 +--- a/mm/hugetlb.c ++++ b/mm/hugetlb.c +@@ -3220,7 +3220,7 @@ static int is_hugetlb_entry_hwpoisoned(pte_t pte) + int copy_hugetlb_page_range(struct mm_struct *dst, struct mm_struct *src, + struct vm_area_struct *vma) + { +- pte_t *src_pte, *dst_pte, entry; ++ pte_t *src_pte, *dst_pte, entry, dst_entry; + struct page *ptepage; + unsigned long addr; + int cow; +@@ -3248,15 +3248,30 @@ int copy_hugetlb_page_range(struct mm_struct *dst, struct mm_struct *src, + break; + } + +- /* If the pagetables are shared don't copy or take references */ +- if (dst_pte == src_pte) ++ /* ++ * If the pagetables are shared don't copy or take references. ++ * dst_pte == src_pte is the common case of src/dest sharing. ++ * ++ * However, src could have 'unshared' and dst shares with ++ * another vma. If dst_pte !none, this implies sharing. ++ * Check here before taking page table lock, and once again ++ * after taking the lock below. ++ */ ++ dst_entry = huge_ptep_get(dst_pte); ++ if ((dst_pte == src_pte) || !huge_pte_none(dst_entry)) + continue; + + dst_ptl = huge_pte_lock(h, dst, dst_pte); + src_ptl = huge_pte_lockptr(h, src, src_pte); + spin_lock_nested(src_ptl, SINGLE_DEPTH_NESTING); + entry = huge_ptep_get(src_pte); +- if (huge_pte_none(entry)) { /* skip none entry */ ++ dst_entry = huge_ptep_get(dst_pte); ++ if (huge_pte_none(entry) || !huge_pte_none(dst_entry)) { ++ /* ++ * Skip if src entry none. Also, skip in the ++ * unlikely case dst entry !none as this implies ++ * sharing with another vma. ++ */ + ; + } else if (unlikely(is_hugetlb_entry_migration(entry) || + is_hugetlb_entry_hwpoisoned(entry))) { +@@ -4318,12 +4333,40 @@ static bool vma_shareable(struct vm_area_struct *vma, unsigned long addr) + /* + * check on proper vm_flags and page table alignment + */ +- if (vma->vm_flags & VM_MAYSHARE && +- vma->vm_start <= base && end <= vma->vm_end) ++ if (vma->vm_flags & VM_MAYSHARE && range_in_vma(vma, base, end)) + return true; + return false; + } + ++/* ++ * Determine if start,end range within vma could be mapped by shared pmd. ++ * If yes, adjust start and end to cover range associated with possible ++ * shared pmd mappings. ++ */ ++void adjust_range_if_pmd_sharing_possible(struct vm_area_struct *vma, ++ unsigned long *start, unsigned long *end) ++{ ++ unsigned long check_addr = *start; ++ ++ if (!(vma->vm_flags & VM_MAYSHARE)) ++ return; ++ ++ for (check_addr = *start; check_addr < *end; check_addr += PUD_SIZE) { ++ unsigned long a_start = check_addr & PUD_MASK; ++ unsigned long a_end = a_start + PUD_SIZE; ++ ++ /* ++ * If sharing is possible, adjust start/end if necessary. ++ */ ++ if (range_in_vma(vma, a_start, a_end)) { ++ if (a_start < *start) ++ *start = a_start; ++ if (a_end > *end) ++ *end = a_end; ++ } ++ } ++} ++ + /* + * Search for a shareable pmd page for hugetlb. In any case calls pmd_alloc() + * and returns the corresponding pte. While this is not necessary for the +@@ -4420,6 +4463,11 @@ int huge_pmd_unshare(struct mm_struct *mm, unsigned long *addr, pte_t *ptep) + { + return 0; + } ++ ++void adjust_range_if_pmd_sharing_possible(struct vm_area_struct *vma, ++ unsigned long *start, unsigned long *end) ++{ ++} + #define want_pmd_share() (0) + #endif /* CONFIG_ARCH_WANT_HUGE_PMD_SHARE */ + +diff --git a/mm/mempolicy.c b/mm/mempolicy.c +index 69c4a0c92ebb..e21d9b44247b 100644 +--- a/mm/mempolicy.c ++++ b/mm/mempolicy.c +@@ -2027,8 +2027,36 @@ retry_cpuset: + nmask = policy_nodemask(gfp, pol); + if (!nmask || node_isset(hpage_node, *nmask)) { + mpol_cond_put(pol); +- page = __alloc_pages_node(hpage_node, +- gfp | __GFP_THISNODE, order); ++ /* ++ * We cannot invoke reclaim if __GFP_THISNODE ++ * is set. Invoking reclaim with ++ * __GFP_THISNODE set, would cause THP ++ * allocations to trigger heavy swapping ++ * despite there may be tons of free memory ++ * (including potentially plenty of THP ++ * already available in the buddy) on all the ++ * other NUMA nodes. ++ * ++ * At most we could invoke compaction when ++ * __GFP_THISNODE is set (but we would need to ++ * refrain from invoking reclaim even if ++ * compaction returned COMPACT_SKIPPED because ++ * there wasn't not enough memory to succeed ++ * compaction). For now just avoid ++ * __GFP_THISNODE instead of limiting the ++ * allocation path to a strict and single ++ * compaction invocation. ++ * ++ * Supposedly if direct reclaim was enabled by ++ * the caller, the app prefers THP regardless ++ * of the node it comes from so this would be ++ * more desiderable behavior than only ++ * providing THP originated from the local ++ * node in such case. ++ */ ++ if (!(gfp & __GFP_DIRECT_RECLAIM)) ++ gfp |= __GFP_THISNODE; ++ page = __alloc_pages_node(hpage_node, gfp, order); + goto out; + } + } +diff --git a/mm/mmap.c b/mm/mmap.c +index aa97074a4a99..283755645d17 100644 +--- a/mm/mmap.c ++++ b/mm/mmap.c +@@ -2876,21 +2876,15 @@ static inline void verify_mm_writelocked(struct mm_struct *mm) + * anonymous maps. eventually we may be able to do some + * brk-specific accounting here. + */ +-static int do_brk(unsigned long addr, unsigned long request) ++static int do_brk(unsigned long addr, unsigned long len) + { + struct mm_struct *mm = current->mm; + struct vm_area_struct *vma, *prev; +- unsigned long flags, len; ++ unsigned long flags; + struct rb_node **rb_link, *rb_parent; + pgoff_t pgoff = addr >> PAGE_SHIFT; + int error; + +- len = PAGE_ALIGN(request); +- if (len < request) +- return -ENOMEM; +- if (!len) +- return 0; +- + flags = VM_DATA_DEFAULT_FLAGS | VM_ACCOUNT | mm->def_flags; + + error = get_unmapped_area(NULL, addr, len, 0, MAP_FIXED); +@@ -2959,12 +2953,19 @@ out: + return 0; + } + +-int vm_brk(unsigned long addr, unsigned long len) ++int vm_brk(unsigned long addr, unsigned long request) + { + struct mm_struct *mm = current->mm; ++ unsigned long len; + int ret; + bool populate; + ++ len = PAGE_ALIGN(request); ++ if (len < request) ++ return -ENOMEM; ++ if (!len) ++ return 0; ++ + if (down_write_killable(&mm->mmap_sem)) + return -EINTR; + +diff --git a/mm/rmap.c b/mm/rmap.c +index 94488b0362f8..a7276d8c96f3 100644 +--- a/mm/rmap.c ++++ b/mm/rmap.c +@@ -1476,6 +1476,9 @@ static int try_to_unmap_one(struct page *page, struct vm_area_struct *vma, + pte_t pteval; + spinlock_t *ptl; + int ret = SWAP_AGAIN; ++ unsigned long sh_address; ++ bool pmd_sharing_possible = false; ++ unsigned long spmd_start, spmd_end; + struct rmap_private *rp = arg; + enum ttu_flags flags = rp->flags; + +@@ -1491,6 +1494,32 @@ static int try_to_unmap_one(struct page *page, struct vm_area_struct *vma, + goto out; + } + ++ /* ++ * Only use the range_start/end mmu notifiers if huge pmd sharing ++ * is possible. In the normal case, mmu_notifier_invalidate_page ++ * is sufficient as we only unmap a page. However, if we unshare ++ * a pmd, we will unmap a PUD_SIZE range. ++ */ ++ if (PageHuge(page)) { ++ spmd_start = address; ++ spmd_end = spmd_start + vma_mmu_pagesize(vma); ++ ++ /* ++ * Check if pmd sharing is possible. If possible, we could ++ * unmap a PUD_SIZE range. spmd_start/spmd_end will be ++ * modified if sharing is possible. ++ */ ++ adjust_range_if_pmd_sharing_possible(vma, &spmd_start, ++ &spmd_end); ++ if (spmd_end - spmd_start != vma_mmu_pagesize(vma)) { ++ sh_address = address; ++ ++ pmd_sharing_possible = true; ++ mmu_notifier_invalidate_range_start(vma->vm_mm, ++ spmd_start, spmd_end); ++ } ++ } ++ + pte = page_check_address(page, mm, address, &ptl, + PageTransCompound(page)); + if (!pte) +@@ -1524,6 +1553,30 @@ static int try_to_unmap_one(struct page *page, struct vm_area_struct *vma, + } + } + ++ /* ++ * Call huge_pmd_unshare to potentially unshare a huge pmd. Pass ++ * sh_address as it will be modified if unsharing is successful. ++ */ ++ if (PageHuge(page) && huge_pmd_unshare(mm, &sh_address, pte)) { ++ /* ++ * huge_pmd_unshare unmapped an entire PMD page. There is ++ * no way of knowing exactly which PMDs may be cached for ++ * this mm, so flush them all. spmd_start/spmd_end cover ++ * this PUD_SIZE range. ++ */ ++ flush_cache_range(vma, spmd_start, spmd_end); ++ flush_tlb_range(vma, spmd_start, spmd_end); ++ ++ /* ++ * The ref count of the PMD page was dropped which is part ++ * of the way map counting is done for shared PMDs. When ++ * there is no other sharing, huge_pmd_unshare returns false ++ * and we will unmap the actual page and drop map count ++ * to zero. ++ */ ++ goto out_unmap; ++ } ++ + /* Nuke the page table entry. */ + flush_cache_page(vma, address, page_to_pfn(page)); + if (should_defer_flush(mm, flags)) { +@@ -1621,6 +1674,9 @@ out_unmap: + if (ret != SWAP_FAIL && ret != SWAP_MLOCK && !(flags & TTU_MUNLOCK)) + mmu_notifier_invalidate_page(mm, address); + out: ++ if (pmd_sharing_possible) ++ mmu_notifier_invalidate_range_end(vma->vm_mm, ++ spmd_start, spmd_end); + return ret; + } + +diff --git a/net/9p/protocol.c b/net/9p/protocol.c +index 16d287565987..145f80518064 100644 +--- a/net/9p/protocol.c ++++ b/net/9p/protocol.c +@@ -46,10 +46,15 @@ p9pdu_writef(struct p9_fcall *pdu, int proto_version, const char *fmt, ...); + void p9stat_free(struct p9_wstat *stbuf) + { + kfree(stbuf->name); ++ stbuf->name = NULL; + kfree(stbuf->uid); ++ stbuf->uid = NULL; + kfree(stbuf->gid); ++ stbuf->gid = NULL; + kfree(stbuf->muid); ++ stbuf->muid = NULL; + kfree(stbuf->extension); ++ stbuf->extension = NULL; + } + EXPORT_SYMBOL(p9stat_free); + +diff --git a/net/netfilter/nf_conntrack_core.c b/net/netfilter/nf_conntrack_core.c +index db3586ba1211..19b3f4fbea52 100644 +--- a/net/netfilter/nf_conntrack_core.c ++++ b/net/netfilter/nf_conntrack_core.c +@@ -918,19 +918,22 @@ static unsigned int early_drop_list(struct net *net, + return drops; + } + +-static noinline int early_drop(struct net *net, unsigned int _hash) ++static noinline int early_drop(struct net *net, unsigned int hash) + { +- unsigned int i; ++ unsigned int i, bucket; + + for (i = 0; i < NF_CT_EVICTION_RANGE; i++) { + struct hlist_nulls_head *ct_hash; +- unsigned int hash, hsize, drops; ++ unsigned int hsize, drops; + + rcu_read_lock(); + nf_conntrack_get_ht(&ct_hash, &hsize); +- hash = reciprocal_scale(_hash++, hsize); ++ if (!i) ++ bucket = reciprocal_scale(hash, hsize); ++ else ++ bucket = (bucket + 1) % hsize; + +- drops = early_drop_list(net, &ct_hash[hash]); ++ drops = early_drop_list(net, &ct_hash[bucket]); + rcu_read_unlock(); + + if (drops) { +diff --git a/net/sunrpc/xdr.c b/net/sunrpc/xdr.c +index 7f1071e103ca..1b38fc486351 100644 +--- a/net/sunrpc/xdr.c ++++ b/net/sunrpc/xdr.c +@@ -639,11 +639,10 @@ void xdr_truncate_encode(struct xdr_stream *xdr, size_t len) + WARN_ON_ONCE(xdr->iov); + return; + } +- if (fraglen) { ++ if (fraglen) + xdr->end = head->iov_base + head->iov_len; +- xdr->page_ptr--; +- } + /* (otherwise assume xdr->end is already set) */ ++ xdr->page_ptr--; + head->iov_len = len; + buf->len = len; + xdr->p = head->iov_base + head->iov_len; +diff --git a/tools/testing/selftests/powerpc/tm/tm-tmspr.c b/tools/testing/selftests/powerpc/tm/tm-tmspr.c +index 2bda81c7bf23..df1d7d4b1c89 100644 +--- a/tools/testing/selftests/powerpc/tm/tm-tmspr.c ++++ b/tools/testing/selftests/powerpc/tm/tm-tmspr.c +@@ -98,7 +98,7 @@ void texasr(void *in) + + int test_tmspr() + { +- pthread_t thread; ++ pthread_t *thread; + int thread_num; + unsigned long i; + +@@ -107,21 +107,28 @@ int test_tmspr() + /* To cause some context switching */ + thread_num = 10 * sysconf(_SC_NPROCESSORS_ONLN); + ++ thread = malloc(thread_num * sizeof(pthread_t)); ++ if (thread == NULL) ++ return EXIT_FAILURE; ++ + /* Test TFIAR and TFHAR */ +- for (i = 0 ; i < thread_num ; i += 2){ +- if (pthread_create(&thread, NULL, (void*)tfiar_tfhar, (void *)i)) ++ for (i = 0; i < thread_num; i += 2) { ++ if (pthread_create(&thread[i], NULL, (void *)tfiar_tfhar, ++ (void *)i)) + return EXIT_FAILURE; + } +- if (pthread_join(thread, NULL) != 0) +- return EXIT_FAILURE; +- + /* Test TEXASR */ +- for (i = 0 ; i < thread_num ; i++){ +- if (pthread_create(&thread, NULL, (void*)texasr, (void *)i)) ++ for (i = 1; i < thread_num; i += 2) { ++ if (pthread_create(&thread[i], NULL, (void *)texasr, (void *)i)) + return EXIT_FAILURE; + } +- if (pthread_join(thread, NULL) != 0) +- return EXIT_FAILURE; ++ ++ for (i = 0; i < thread_num; i++) { ++ if (pthread_join(thread[i], NULL) != 0) ++ return EXIT_FAILURE; ++ } ++ ++ free(thread); + + if (passed) + return 0;
