diff options
-rw-r--r-- | MAINTAINERS | 1 | ||||
-rw-r--r-- | block/compat_ioctl.c | 16 | ||||
-rw-r--r-- | drivers/ata/ahci_brcm.c | 133 | ||||
-rw-r--r-- | drivers/ata/libahci_platform.c | 6 | ||||
-rw-r--r-- | drivers/ata/libata-core.c | 24 | ||||
-rw-r--r-- | drivers/ata/sata_fsl.c | 2 | ||||
-rw-r--r-- | drivers/ata/sata_mv.c | 2 | ||||
-rw-r--r-- | drivers/ata/sata_nv.c | 2 | ||||
-rw-r--r-- | drivers/block/pktcdvd.c | 2 | ||||
-rw-r--r-- | drivers/gpio/Kconfig | 4 | ||||
-rw-r--r-- | drivers/gpio/gpio-aspeed-sgpio.c | 2 | ||||
-rw-r--r-- | drivers/gpio/gpio-mockup.c | 7 | ||||
-rw-r--r-- | drivers/gpio/gpio-mpc8xxx.c | 1 | ||||
-rw-r--r-- | drivers/gpio/gpio-pca953x.c | 26 | ||||
-rw-r--r-- | drivers/gpio/gpio-xgs-iproc.c | 2 | ||||
-rw-r--r-- | drivers/gpio/gpio-xtensa.c | 7 | ||||
-rw-r--r-- | drivers/gpio/gpiolib.c | 13 | ||||
-rw-r--r-- | fs/io-wq.c | 10 | ||||
-rw-r--r-- | fs/io_uring.c | 690 | ||||
-rw-r--r-- | include/linux/ahci_platform.h | 2 | ||||
-rw-r--r-- | include/linux/libata.h | 1 |
21 files changed, 537 insertions, 416 deletions
diff --git a/MAINTAINERS b/MAINTAINERS index ffa3371bc750..e09bd92a1e44 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -7034,6 +7034,7 @@ L: linux-acpi@vger.kernel.org S: Maintained F: Documentation/firmware-guide/acpi/gpio-properties.rst F: drivers/gpio/gpiolib-acpi.c +F: drivers/gpio/gpiolib-acpi.h GPIO IR Transmitter M: Sean Young <sean@mess.org> diff --git a/block/compat_ioctl.c b/block/compat_ioctl.c index 6ca015f92766..3ed7a0f144a9 100644 --- a/block/compat_ioctl.c +++ b/block/compat_ioctl.c @@ -6,6 +6,7 @@ #include <linux/compat.h> #include <linux/elevator.h> #include <linux/hdreg.h> +#include <linux/pr.h> #include <linux/slab.h> #include <linux/syscalls.h> #include <linux/types.h> @@ -354,6 +355,13 @@ long compat_blkdev_ioctl(struct file *file, unsigned cmd, unsigned long arg) * but we call blkdev_ioctl, which gets the lock for us */ case BLKRRPART: + case BLKREPORTZONE: + case BLKRESETZONE: + case BLKOPENZONE: + case BLKCLOSEZONE: + case BLKFINISHZONE: + case BLKGETZONESZ: + case BLKGETNRZONES: return blkdev_ioctl(bdev, mode, cmd, (unsigned long)compat_ptr(arg)); case BLKBSZSET_32: @@ -401,6 +409,14 @@ long compat_blkdev_ioctl(struct file *file, unsigned cmd, unsigned long arg) case BLKTRACETEARDOWN: /* compatible */ ret = blk_trace_ioctl(bdev, cmd, compat_ptr(arg)); return ret; + case IOC_PR_REGISTER: + case IOC_PR_RESERVE: + case IOC_PR_RELEASE: + case IOC_PR_PREEMPT: + case IOC_PR_PREEMPT_ABORT: + case IOC_PR_CLEAR: + return blkdev_ioctl(bdev, mode, cmd, + (unsigned long)compat_ptr(arg)); default: if (disk->fops->compat_ioctl) ret = disk->fops->compat_ioctl(bdev, mode, cmd, arg); diff --git a/drivers/ata/ahci_brcm.c b/drivers/ata/ahci_brcm.c index f41744b9b38a..66a570d0da83 100644 --- a/drivers/ata/ahci_brcm.c +++ b/drivers/ata/ahci_brcm.c @@ -76,8 +76,7 @@ enum brcm_ahci_version { }; enum brcm_ahci_quirks { - BRCM_AHCI_QUIRK_NO_NCQ = BIT(0), - BRCM_AHCI_QUIRK_SKIP_PHY_ENABLE = BIT(1), + BRCM_AHCI_QUIRK_SKIP_PHY_ENABLE = BIT(0), }; struct brcm_ahci_priv { @@ -213,19 +212,12 @@ static void brcm_sata_phys_disable(struct brcm_ahci_priv *priv) brcm_sata_phy_disable(priv, i); } -static u32 brcm_ahci_get_portmask(struct platform_device *pdev, +static u32 brcm_ahci_get_portmask(struct ahci_host_priv *hpriv, struct brcm_ahci_priv *priv) { - void __iomem *ahci; - struct resource *res; u32 impl; - res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "ahci"); - ahci = devm_ioremap_resource(&pdev->dev, res); - if (IS_ERR(ahci)) - return 0; - - impl = readl(ahci + HOST_PORTS_IMPL); + impl = readl(hpriv->mmio + HOST_PORTS_IMPL); if (fls(impl) > SATA_TOP_MAX_PHYS) dev_warn(priv->dev, "warning: more ports than PHYs (%#x)\n", @@ -233,9 +225,6 @@ static u32 brcm_ahci_get_portmask(struct platform_device *pdev, else if (!impl) dev_info(priv->dev, "no ports found\n"); - devm_iounmap(&pdev->dev, ahci); - devm_release_mem_region(&pdev->dev, res->start, resource_size(res)); - return impl; } @@ -285,6 +274,13 @@ static unsigned int brcm_ahci_read_id(struct ata_device *dev, /* Perform the SATA PHY reset sequence */ brcm_sata_phy_disable(priv, ap->port_no); + /* Reset the SATA clock */ + ahci_platform_disable_clks(hpriv); + msleep(10); + + ahci_platform_enable_clks(hpriv); + msleep(10); + /* Bring the PHY back on */ brcm_sata_phy_enable(priv, ap->port_no); @@ -347,11 +343,10 @@ static int brcm_ahci_suspend(struct device *dev) struct ata_host *host = dev_get_drvdata(dev); struct ahci_host_priv *hpriv = host->private_data; struct brcm_ahci_priv *priv = hpriv->plat_data; - int ret; - ret = ahci_platform_suspend(dev); brcm_sata_phys_disable(priv); - return ret; + + return ahci_platform_suspend(dev); } static int brcm_ahci_resume(struct device *dev) @@ -359,11 +354,44 @@ static int brcm_ahci_resume(struct device *dev) struct ata_host *host = dev_get_drvdata(dev); struct ahci_host_priv *hpriv = host->private_data; struct brcm_ahci_priv *priv = hpriv->plat_data; + int ret; + + /* Make sure clocks are turned on before re-configuration */ + ret = ahci_platform_enable_clks(hpriv); + if (ret) + return ret; brcm_sata_init(priv); brcm_sata_phys_enable(priv); brcm_sata_alpm_init(hpriv); - return ahci_platform_resume(dev); + + /* Since we had to enable clocks earlier on, we cannot use + * ahci_platform_resume() as-is since a second call to + * ahci_platform_enable_resources() would bump up the resources + * (regulators, clocks, PHYs) count artificially so we copy the part + * after ahci_platform_enable_resources(). + */ + ret = ahci_platform_enable_phys(hpriv); + if (ret) + goto out_disable_phys; + + ret = ahci_platform_resume_host(dev); + if (ret) + goto out_disable_platform_phys; + + /* We resumed so update PM runtime state */ + pm_runtime_disable(dev); + pm_runtime_set_active(dev); + pm_runtime_enable(dev); + + return 0; + +out_disable_platform_phys: + ahci_platform_disable_phys(hpriv); +out_disable_phys: + brcm_sata_phys_disable(priv); + ahci_platform_disable_clks(hpriv); + return ret; } #endif @@ -410,44 +438,71 @@ static int brcm_ahci_probe(struct platform_device *pdev) if (!IS_ERR_OR_NULL(priv->rcdev)) reset_control_deassert(priv->rcdev); - if ((priv->version == BRCM_SATA_BCM7425) || - (priv->version == BRCM_SATA_NSP)) { - priv->quirks |= BRCM_AHCI_QUIRK_NO_NCQ; + hpriv = ahci_platform_get_resources(pdev, 0); + if (IS_ERR(hpriv)) { + ret = PTR_ERR(hpriv); + goto out_reset; + } + + hpriv->plat_data = priv; + hpriv->flags = AHCI_HFLAG_WAKE_BEFORE_STOP | AHCI_HFLAG_NO_WRITE_TO_RO; + + switch (priv->version) { + case BRCM_SATA_BCM7425: + hpriv->flags |= AHCI_HFLAG_DELAY_ENGINE; + /* fall through */ + case BRCM_SATA_NSP: + hpriv->flags |= AHCI_HFLAG_NO_NCQ; priv->quirks |= BRCM_AHCI_QUIRK_SKIP_PHY_ENABLE; + break; + default: + break; } + ret = ahci_platform_enable_clks(hpriv); + if (ret) + goto out_reset; + + /* Must be first so as to configure endianness including that + * of the standard AHCI register space. + */ brcm_sata_init(priv); - priv->port_mask = brcm_ahci_get_portmask(pdev, priv); - if (!priv->port_mask) - return -ENODEV; + /* Initializes priv->port_mask which is used below */ + priv->port_mask = brcm_ahci_get_portmask(hpriv, priv); + if (!priv->port_mask) { + ret = -ENODEV; + goto out_disable_clks; + } + /* Must be done before ahci_platform_enable_phys() */ brcm_sata_phys_enable(priv); - hpriv = ahci_platform_get_resources(pdev, 0); - if (IS_ERR(hpriv)) - return PTR_ERR(hpriv); - hpriv->plat_data = priv; - hpriv->flags = AHCI_HFLAG_WAKE_BEFORE_STOP; - brcm_sata_alpm_init(hpriv); - ret = ahci_platform_enable_resources(hpriv); + ret = ahci_platform_enable_phys(hpriv); if (ret) - return ret; - - if (priv->quirks & BRCM_AHCI_QUIRK_NO_NCQ) - hpriv->flags |= AHCI_HFLAG_NO_NCQ; - hpriv->flags |= AHCI_HFLAG_NO_WRITE_TO_RO; + goto out_disable_phys; ret = ahci_platform_init_host(pdev, hpriv, &ahci_brcm_port_info, &ahci_platform_sht); if (ret) - return ret; + goto out_disable_platform_phys; dev_info(dev, "Broadcom AHCI SATA3 registered\n"); return 0; + +out_disable_platform_phys: + ahci_platform_disable_phys(hpriv); +out_disable_phys: + brcm_sata_phys_disable(priv); +out_disable_clks: + ahci_platform_disable_clks(hpriv); +out_reset: + if (!IS_ERR_OR_NULL(priv->rcdev)) + reset_control_assert(priv->rcdev); + return ret; } static int brcm_ahci_remove(struct platform_device *pdev) @@ -457,12 +512,12 @@ static int brcm_ahci_remove(struct platform_device *pdev) struct brcm_ahci_priv *priv = hpriv->plat_data; int ret; + brcm_sata_phys_disable(priv); + ret = ata_platform_remove_one(pdev); if (ret) return ret; - brcm_sata_phys_disable(priv); - return 0; } diff --git a/drivers/ata/libahci_platform.c b/drivers/ata/libahci_platform.c index 8befce036af8..129556fcf6be 100644 --- a/drivers/ata/libahci_platform.c +++ b/drivers/ata/libahci_platform.c @@ -43,7 +43,7 @@ EXPORT_SYMBOL_GPL(ahci_platform_ops); * RETURNS: * 0 on success otherwise a negative error code */ -static int ahci_platform_enable_phys(struct ahci_host_priv *hpriv) +int ahci_platform_enable_phys(struct ahci_host_priv *hpriv) { int rc, i; @@ -74,6 +74,7 @@ disable_phys: } return rc; } +EXPORT_SYMBOL_GPL(ahci_platform_enable_phys); /** * ahci_platform_disable_phys - Disable PHYs @@ -81,7 +82,7 @@ disable_phys: * * This function disables all PHYs found in hpriv->phys. */ -static void ahci_platform_disable_phys(struct ahci_host_priv *hpriv) +void ahci_platform_disable_phys(struct ahci_host_priv *hpriv) { int i; @@ -90,6 +91,7 @@ static void ahci_platform_disable_phys(struct ahci_host_priv *hpriv) phy_exit(hpriv->phys[i]); } } +EXPORT_SYMBOL_GPL(ahci_platform_disable_phys); /** * ahci_platform_enable_clks - Enable platform clocks diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c index e9017c570bc5..6f4ab5c5b52d 100644 --- a/drivers/ata/libata-core.c +++ b/drivers/ata/libata-core.c @@ -5329,6 +5329,30 @@ void ata_qc_complete(struct ata_queued_cmd *qc) } /** + * ata_qc_get_active - get bitmask of active qcs + * @ap: port in question + * + * LOCKING: + * spin_lock_irqsave(host lock) + * + * RETURNS: + * Bitmask of active qcs + */ +u64 ata_qc_get_active(struct ata_port *ap) +{ + u64 qc_active = ap->qc_active; + + /* ATA_TAG_INTERNAL is sent to hw as tag 0 */ + if (qc_active & (1ULL << ATA_TAG_INTERNAL)) { + qc_active |= (1 << 0); + qc_active &= ~(1ULL << ATA_TAG_INTERNAL); + } + + return qc_active; +} +EXPORT_SYMBOL_GPL(ata_qc_get_active); + +/** * ata_qc_complete_multiple - Complete multiple qcs successfully * @ap: port in question * @qc_active: new qc_active mask diff --git a/drivers/ata/sata_fsl.c b/drivers/ata/sata_fsl.c index 9239615d8a04..d55ee244d693 100644 --- a/drivers/ata/sata_fsl.c +++ b/drivers/ata/sata_fsl.c @@ -1280,7 +1280,7 @@ static void sata_fsl_host_intr(struct ata_port *ap) i, ioread32(hcr_base + CC), ioread32(hcr_base + CA)); } - ata_qc_complete_multiple(ap, ap->qc_active ^ done_mask); + ata_qc_complete_multiple(ap, ata_qc_get_active(ap) ^ done_mask); return; } else if ((ap->qc_active & (1ULL << ATA_TAG_INTERNAL))) { diff --git a/drivers/ata/sata_mv.c b/drivers/ata/sata_mv.c index 277f11909fc1..d7228f8e9297 100644 --- a/drivers/ata/sata_mv.c +++ b/drivers/ata/sata_mv.c @@ -2829,7 +2829,7 @@ static void mv_process_crpb_entries(struct ata_port *ap, struct mv_port_priv *pp } if (work_done) { - ata_qc_complete_multiple(ap, ap->qc_active ^ done_mask); + ata_qc_complete_multiple(ap, ata_qc_get_active(ap) ^ done_mask); /* Update the software queue position index in hardware */ writelfl((pp->crpb_dma & EDMA_RSP_Q_BASE_LO_MASK) | diff --git a/drivers/ata/sata_nv.c b/drivers/ata/sata_nv.c index f3e62f5528bd..eb9dc14e5147 100644 --- a/drivers/ata/sata_nv.c +++ b/drivers/ata/sata_nv.c @@ -984,7 +984,7 @@ static irqreturn_t nv_adma_interrupt(int irq, void *dev_instance) check_commands = 0; check_commands &= ~(1 << pos); } - ata_qc_complete_multiple(ap, ap->qc_active ^ done_mask); + ata_qc_complete_multiple(ap, ata_qc_get_active(ap) ^ done_mask); } } diff --git a/drivers/block/pktcdvd.c b/drivers/block/pktcdvd.c index ee67bf929fac..861fc65a1b75 100644 --- a/drivers/block/pktcdvd.c +++ b/drivers/block/pktcdvd.c @@ -2707,7 +2707,7 @@ static const struct block_device_operations pktcdvd_ops = { .release = pkt_close, .ioctl = pkt_ioctl, #ifdef CONFIG_COMPAT - .ioctl = pkt_compat_ioctl, + .compat_ioctl = pkt_compat_ioctl, #endif .check_events = pkt_check_events, }; diff --git a/drivers/gpio/Kconfig b/drivers/gpio/Kconfig index 8adffd42f8cb..6ab25fe1c423 100644 --- a/drivers/gpio/Kconfig +++ b/drivers/gpio/Kconfig @@ -553,8 +553,8 @@ config GPIO_TEGRA config GPIO_TEGRA186 tristate "NVIDIA Tegra186 GPIO support" - default ARCH_TEGRA_186_SOC - depends on ARCH_TEGRA_186_SOC || COMPILE_TEST + default ARCH_TEGRA_186_SOC || ARCH_TEGRA_194_SOC + depends on ARCH_TEGRA_186_SOC || ARCH_TEGRA_194_SOC || COMPILE_TEST depends on OF_GPIO select GPIOLIB_IRQCHIP select IRQ_DOMAIN_HIERARCHY diff --git a/drivers/gpio/gpio-aspeed-sgpio.c b/drivers/gpio/gpio-aspeed-sgpio.c index 7e99860ca447..8319812593e3 100644 --- a/drivers/gpio/gpio-aspeed-sgpio.c +++ b/drivers/gpio/gpio-aspeed-sgpio.c @@ -107,7 +107,7 @@ static void __iomem *bank_reg(struct aspeed_sgpio *gpio, return gpio->base + bank->irq_regs + GPIO_IRQ_STATUS; default: /* acturally if code runs to here, it's an error case */ - BUG_ON(1); + BUG(); } } diff --git a/drivers/gpio/gpio-mockup.c b/drivers/gpio/gpio-mockup.c index 56d647a30e3e..c4fdc192ea4e 100644 --- a/drivers/gpio/gpio-mockup.c +++ b/drivers/gpio/gpio-mockup.c @@ -226,7 +226,7 @@ static int gpio_mockup_get_direction(struct gpio_chip *gc, unsigned int offset) int direction; mutex_lock(&chip->lock); - direction = !chip->lines[offset].dir; + direction = chip->lines[offset].dir; mutex_unlock(&chip->lock); return direction; @@ -395,7 +395,7 @@ static int gpio_mockup_probe(struct platform_device *pdev) struct gpio_chip *gc; struct device *dev; const char *name; - int rv, base; + int rv, base, i; u16 ngpio; dev = &pdev->dev; @@ -447,6 +447,9 @@ static int gpio_mockup_probe(struct platform_device *pdev) if (!chip->lines) return -ENOMEM; + for (i = 0; i < gc->ngpio; i++) + chip->lines[i].dir = GPIO_LINE_DIRECTION_IN; + if (device_property_read_bool(dev, "named-gpio-lines")) { rv = gpio_mockup_name_lines(dev, chip); if (rv) diff --git a/drivers/gpio/gpio-mpc8xxx.c b/drivers/gpio/gpio-mpc8xxx.c index f1e164cecff8..5ae30de3490a 100644 --- a/drivers/gpio/gpio-mpc8xxx.c +++ b/drivers/gpio/gpio-mpc8xxx.c @@ -346,6 +346,7 @@ static int mpc8xxx_probe(struct platform_device *pdev) return -ENOMEM; gc = &mpc8xxx_gc->gc; + gc->parent = &pdev->dev; if (of_property_read_bool(np, "little-endian")) { ret = bgpio_init(gc, &pdev->dev, 4, diff --git a/drivers/gpio/gpio-pca953x.c b/drivers/gpio/gpio-pca953x.c index 6652bee01966..9853547e7276 100644 --- a/drivers/gpio/gpio-pca953x.c +++ b/drivers/gpio/gpio-pca953x.c @@ -568,16 +568,18 @@ static void pca953x_irq_mask(struct irq_data *d) { struct gpio_chip *gc = irq_data_get_irq_chip_data(d); struct pca953x_chip *chip = gpiochip_get_data(gc); + irq_hw_number_t hwirq = irqd_to_hwirq(d); - chip->irq_mask[d->hwirq / BANK_SZ] &= ~BIT(d->hwirq % BANK_SZ); + clear_bit(hwirq, chip->irq_mask); } static void pca953x_irq_unmask(struct irq_data *d) { struct gpio_chip *gc = irq_data_get_irq_chip_data(d); struct pca953x_chip *chip = gpiochip_get_data(gc); + irq_hw_number_t hwirq = irqd_to_hwirq(d); - chip->irq_mask[d->hwirq / BANK_SZ] |= BIT(d->hwirq % BANK_SZ); + set_bit(hwirq, chip->irq_mask); } static int pca953x_irq_set_wake(struct irq_data *d, unsigned int on) @@ -635,8 +637,7 @@ static int pca953x_irq_set_type(struct irq_data *d, unsigned int type) { struct gpio_chip *gc = irq_data_get_irq_chip_data(d); struct pca953x_chip *chip = gpiochip_get_data(gc); - int bank_nb = d->hwirq / BANK_SZ; - u8 mask = BIT(d->hwirq % BANK_SZ); + irq_hw_number_t hwirq = irqd_to_hwirq(d); if (!(type & IRQ_TYPE_EDGE_BOTH)) { dev_err(&chip->client->dev, "irq %d: unsupported type %d\n", @@ -644,15 +645,8 @@ static int pca953x_irq_set_type(struct irq_data *d, unsigned int type) return -EINVAL; } - if (type & IRQ_TYPE_EDGE_FALLING) - chip->irq_trig_fall[bank_nb] |= mask; - else - chip->irq_trig_fall[bank_nb] &= ~mask; - - if (type & IRQ_TYPE_EDGE_RISING) - chip->irq_trig_raise[bank_nb] |= mask; - else - chip->irq_trig_raise[bank_nb] &= ~mask; + assign_bit(hwirq, chip->irq_trig_fall, type & IRQ_TYPE_EDGE_FALLING); + assign_bit(hwirq, chip->irq_trig_raise, type & IRQ_TYPE_EDGE_RISING); return 0; } @@ -661,10 +655,10 @@ static void pca953x_irq_shutdown(struct irq_data *d) { struct gpio_chip *gc = irq_data_get_irq_chip_data(d); struct pca953x_chip *chip = gpiochip_get_data(gc); - u8 mask = BIT(d->hwirq % BANK_SZ); + irq_hw_number_t hwirq = irqd_to_hwirq(d); - chip->irq_trig_raise[d->hwirq / BANK_SZ] &= ~mask; - chip->irq_trig_fall[d->hwirq / BANK_SZ] &= ~mask; + clear_bit(hwirq, chip->irq_trig_raise); + clear_bit(hwirq, chip->irq_trig_fall); } static bool pca953x_irq_pending(struct pca953x_chip *chip, unsigned long *pending) diff --git a/drivers/gpio/gpio-xgs-iproc.c b/drivers/gpio/gpio-xgs-iproc.c index 773e5c24309e..b21c2e436b61 100644 --- a/drivers/gpio/gpio-xgs-iproc.c +++ b/drivers/gpio/gpio-xgs-iproc.c @@ -280,7 +280,7 @@ static int iproc_gpio_probe(struct platform_device *pdev) return 0; } -static int __exit iproc_gpio_remove(struct platform_device *pdev) +static int iproc_gpio_remove(struct platform_device *pdev) { struct iproc_gpio_chip *chip; diff --git a/drivers/gpio/gpio-xtensa.c b/drivers/gpio/gpio-xtensa.c index 08d7c3b32038..c8af34a6368f 100644 --- a/drivers/gpio/gpio-xtensa.c +++ b/drivers/gpio/gpio-xtensa.c @@ -44,15 +44,14 @@ static inline unsigned long enable_cp(unsigned long *cpenable) unsigned long flags; local_irq_save(flags); - RSR_CPENABLE(*cpenable); - WSR_CPENABLE(*cpenable | BIT(XCHAL_CP_ID_XTIOP)); - + *cpenable = xtensa_get_sr(cpenable); + xtensa_set_sr(*cpenable | BIT(XCHAL_CP_ID_XTIOP), cpenable); return flags; } static inline void disable_cp(unsigned long flags, unsigned long cpenable) { - WSR_CPENABLE(cpenable); + xtensa_set_sr(cpenable, cpenable); local_irq_restore(flags); } diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c index 9913886ede90..78a16e42f222 100644 --- a/drivers/gpio/gpiolib.c +++ b/drivers/gpio/gpiolib.c @@ -220,6 +220,14 @@ int gpiod_get_direction(struct gpio_desc *desc) chip = gpiod_to_chip(desc); offset = gpio_chip_hwgpio(desc); + /* + * Open drain emulation using input mode may incorrectly report + * input here, fix that up. + */ + if (test_bit(FLAG_OPEN_DRAIN, &desc->flags) && + test_bit(FLAG_IS_OUT, &desc->flags)) + return 0; + if (!chip->get_direction) return -ENOTSUPP; @@ -4472,8 +4480,9 @@ static struct gpio_desc *gpiod_find(struct device *dev, const char *con_id, if (chip->ngpio <= p->chip_hwnum) { dev_err(dev, - "requested GPIO %d is out of range [0..%d] for chip %s\n", - idx, chip->ngpio, chip->label); + "requested GPIO %u (%u) is out of range [0..%u] for chip %s\n", + idx, p->chip_hwnum, chip->ngpio - 1, + chip->label); return ERR_PTR(-EINVAL); } diff --git a/fs/io-wq.c b/fs/io-wq.c index 11e80b7252a8..541c8a3e0bbb 100644 --- a/fs/io-wq.c +++ b/fs/io-wq.c @@ -92,7 +92,6 @@ struct io_wqe { struct io_wqe_acct acct[2]; struct hlist_nulls_head free_list; - struct hlist_nulls_head busy_list; struct list_head all_list; struct io_wq *wq; @@ -327,7 +326,6 @@ static void __io_worker_busy(struct io_wqe *wqe, struct io_worker *worker, if (worker->flags & IO_WORKER_F_FREE) { worker->flags &= ~IO_WORKER_F_FREE; hlist_nulls_del_init_rcu(&worker->nulls_node); - hlist_nulls_add_head_rcu(&worker->nulls_node, &wqe->busy_list); } /* @@ -365,7 +363,6 @@ static bool __io_worker_idle(struct io_wqe *wqe, struct io_worker *worker) { if (!(worker->flags & IO_WORKER_F_FREE)) { worker->flags |= IO_WORKER_F_FREE; - hlist_nulls_del_init_rcu(&worker->nulls_node); hlist_nulls_add_head_rcu(&worker->nulls_node, &wqe->free_list); } @@ -432,6 +429,8 @@ next: if (signal_pending(current)) flush_signals(current); + cond_resched(); + spin_lock_irq(&worker->lock); worker->cur_work = work; spin_unlock_irq(&worker->lock); @@ -798,10 +797,6 @@ void io_wq_cancel_all(struct io_wq *wq) set_bit(IO_WQ_BIT_CANCEL, &wq->state); - /* - * Browse both lists, as there's a gap between handing work off - * to a worker and the worker putting itself on the busy_list - */ rcu_read_lock(); for_each_node(node) { struct io_wqe *wqe = wq->wqes[node]; @@ -1049,7 +1044,6 @@ struct io_wq *io_wq_create(unsigned bounded, struct io_wq_data *data) spin_lock_init(&wqe->lock); INIT_WQ_LIST(&wqe->work_list); INIT_HLIST_NULLS_HEAD(&wqe->free_list, 0); - INIT_HLIST_NULLS_HEAD(&wqe->busy_list, 1); INIT_LIST_HEAD(&wqe->all_list); } diff --git a/fs/io_uring.c b/fs/io_uring.c index 6f084e3cf835..562e3a1a1bf9 100644 --- a/fs/io_uring.c +++ b/fs/io_uring.c @@ -330,6 +330,26 @@ struct io_timeout { struct file *file; u64 addr; int flags; + unsigned count; +}; + +struct io_rw { + /* NOTE: kiocb has the file as the first member, so don't do it here */ + struct kiocb kiocb; + u64 addr; + u64 len; +}; + +struct io_connect { + struct file *file; + struct sockaddr __user *addr; + int addr_len; +}; + +struct io_sr_msg { + struct file *file; + struct user_msghdr __user *msg; + int msg_flags; }; struct io_async_connect { @@ -351,7 +371,6 @@ struct io_async_rw { }; struct io_async_ctx { - struct io_uring_sqe sqe; union { struct io_async_rw rw; struct io_async_msghdr msg; @@ -369,15 +388,16 @@ struct io_async_ctx { struct io_kiocb { union { struct file *file; - struct kiocb rw; + struct io_rw rw; struct io_poll_iocb poll; struct io_accept accept; struct io_sync sync; struct io_cancel cancel; struct io_timeout timeout; + struct io_connect connect; + struct io_sr_msg sr_msg; }; - const struct io_uring_sqe *sqe; struct io_async_ctx *io; struct file *ring_file; int ring_fd; @@ -411,7 +431,6 @@ struct io_kiocb { #define REQ_F_INFLIGHT 16384 /* on inflight list */ #define REQ_F_COMP_LOCKED 32768 /* completion under lock */ #define REQ_F_HARDLINK 65536 /* doesn't sever on completion < 0 */ -#define REQ_F_PREPPED 131072 /* request already opcode prepared */ u64 user_data; u32 result; u32 sequence; @@ -609,33 +628,31 @@ static inline bool io_prep_async_work(struct io_kiocb *req, { bool do_hashed = false; - if (req->sqe) { - switch (req->opcode) { - case IORING_OP_WRITEV: - case IORING_OP_WRITE_FIXED: - /* only regular files should be hashed for writes */ - if (req->flags & REQ_F_ISREG) - do_hashed = true; - /* fall-through */ - case IORING_OP_READV: - case IORING_OP_READ_FIXED: - case IORING_OP_SENDMSG: - case IORING_OP_RECVMSG: - case IORING_OP_ACCEPT: - case IORING_OP_POLL_ADD: - case IORING_OP_CONNECT: - /* - * We know REQ_F_ISREG is not set on some of these - * opcodes, but this enables us to keep the check in - * just one place. - */ - if (!(req->flags & REQ_F_ISREG)) - req->work.flags |= IO_WQ_WORK_UNBOUND; - break; - } - if (io_req_needs_user(req)) - req->work.flags |= IO_WQ_WORK_NEEDS_USER; + switch (req->opcode) { + case IORING_OP_WRITEV: + case IORING_OP_WRITE_FIXED: + /* only regular files should be hashed for writes */ + if (req->flags & REQ_F_ISREG) + do_hashed = true; + /* fall-through */ + case IORING_OP_READV: + case IORING_OP_READ_FIXED: + case IORING_OP_SENDMSG: + case IORING_OP_RECVMSG: + case IORING_OP_ACCEPT: + case IORING_OP_POLL_ADD: + case IORING_OP_CONNECT: + /* + * We know REQ_F_ISREG is not set on some of these + * opcodes, but this enables us to keep the check in + * just one place. + */ + if (!(req->flags & REQ_F_ISREG)) + req->work.flags |= IO_WQ_WORK_UNBOUND; + break; } + if (io_req_needs_user(req)) + req->work.flags |= IO_WQ_WORK_NEEDS_USER; *link = io_prep_linked_timeout(req); return do_hashed; @@ -1180,7 +1197,7 @@ static int io_do_iopoll(struct io_ring_ctx *ctx, unsigned int *nr_events, ret = 0; list_for_each_entry_safe(req, tmp, &ctx->poll_list, list) { - struct kiocb *kiocb = &req->rw; + struct kiocb *kiocb = &req->rw.kiocb; /* * Move completed entries to our local list. If we find a @@ -1335,7 +1352,7 @@ static inline void req_set_fail_links(struct io_kiocb *req) static void io_complete_rw_common(struct kiocb *kiocb, long res) { - struct io_kiocb *req = container_of(kiocb, struct io_kiocb, rw); + struct io_kiocb *req = container_of(kiocb, struct io_kiocb, rw.kiocb); if (kiocb->ki_flags & IOCB_WRITE) kiocb_end_write(req); @@ -1347,7 +1364,7 @@ static void io_complete_rw_common(struct kiocb *kiocb, long res) static void io_complete_rw(struct kiocb *kiocb, long res, long res2) { - struct io_kiocb *req = container_of(kiocb, struct io_kiocb, rw); + struct io_kiocb *req = container_of(kiocb, struct io_kiocb, rw.kiocb); io_complete_rw_common(kiocb, res); io_put_req(req); @@ -1355,7 +1372,7 @@ static void io_complete_rw(struct kiocb *kiocb, long res, long res2) static struct io_kiocb *__io_complete_rw(struct kiocb *kiocb, long res) { - struct io_kiocb *req = container_of(kiocb, struct io_kiocb, rw); + struct io_kiocb *req = container_of(kiocb, struct io_kiocb, rw.kiocb); struct io_kiocb *nxt = NULL; io_complete_rw_common(kiocb, res); @@ -1366,7 +1383,7 @@ static struct io_kiocb *__io_complete_rw(struct kiocb *kiocb, long res) static void io_complete_rw_iopoll(struct kiocb *kiocb, long res, long res2) { - struct io_kiocb *req = container_of(kiocb, struct io_kiocb, rw); + struct io_kiocb *req = container_of(kiocb, struct io_kiocb, rw.kiocb); if (kiocb->ki_flags & IOCB_WRITE) kiocb_end_write(req); @@ -1400,7 +1417,7 @@ static void io_iopoll_req_issued(struct io_kiocb *req) list_req = list_first_entry(&ctx->poll_list, struct io_kiocb, list); - if (list_req->rw.ki_filp != req->rw.ki_filp) + if (list_req->file != req->file) ctx->poll_multi_file = true; } @@ -1471,11 +1488,11 @@ static bool io_file_supports_async(struct file *file) return false; } -static int io_prep_rw(struct io_kiocb *req, bool force_nonblock) +static int io_prep_rw(struct io_kiocb *req, const struct io_uring_sqe *sqe, + bool force_nonblock) { - const struct io_uring_sqe *sqe = req->sqe; struct io_ring_ctx *ctx = req->ctx; - struct kiocb *kiocb = &req->rw; + struct kiocb *kiocb = &req->rw.kiocb; unsigned ioprio; int ret; @@ -1524,6 +1541,12 @@ static int io_prep_rw(struct io_kiocb *req, bool force_nonblock) return -EINVAL; kiocb->ki_complete = io_complete_rw; } + + req->rw.addr = READ_ONCE(sqe->addr); + req->rw.len = READ_ONCE(sqe->len); + /* we own ->private, reuse it for the buffer index */ + req->rw.kiocb.private = (void *) (unsigned long) + READ_ONCE(sqe->buf_index); return 0; } @@ -1557,11 +1580,11 @@ static void kiocb_done(struct kiocb *kiocb, ssize_t ret, struct io_kiocb **nxt, io_rw_done(kiocb, ret); } -static ssize_t io_import_fixed(struct io_ring_ctx *ctx, int rw, - const struct io_uring_sqe *sqe, +static ssize_t io_import_fixed(struct io_kiocb *req, int rw, struct iov_iter *iter) { - size_t len = READ_ONCE(sqe->len); + struct io_ring_ctx *ctx = req->ctx; + size_t len = req->rw.len; struct io_mapped_ubuf *imu; unsigned index, buf_index; size_t offset; @@ -1571,13 +1594,13 @@ static ssize_t io_import_fixed(struct io_ring_ctx *ctx, int rw, if (unlikely(!ctx->user_bufs)) return -EFAULT; - buf_index = READ_ONCE(sqe->buf_index); + buf_index = (unsigned long) req->rw.kiocb.private; if (unlikely(buf_index >= ctx->nr_user_bufs)) return -EFAULT; index = array_index_nospec(buf_index, ctx->nr_user_bufs); imu = &ctx->user_bufs[index]; - buf_addr = READ_ONCE(sqe->addr); + buf_addr = req->rw.addr; /* overflow */ if (buf_addr + len < buf_addr) @@ -1634,25 +1657,20 @@ static ssize_t io_import_fixed(struct io_ring_ctx *ctx, int rw, static ssize_t io_import_iovec(int rw, struct io_kiocb *req, struct iovec **iovec, struct iov_iter *iter) { - const struct io_uring_sqe *sqe = req->sqe; - void __user *buf = u64_to_user_ptr(READ_ONCE(sqe->addr)); - size_t sqe_len = READ_ONCE(sqe->len); + void __user *buf = u64_to_user_ptr(req->rw.addr); + size_t sq |