diff options
79 files changed, 624 insertions, 419 deletions
@@ -51,6 +51,7 @@ Greg Kroah-Hartman <gregkh@suse.de> Greg Kroah-Hartman <greg@kroah.com> Henk Vergonet <Henk.Vergonet@gmail.com> Henrik Kretzschmar <henne@nachtwindheim.de> +Henrik Rydberg <rydberg@bitmath.org> Herbert Xu <herbert@gondor.apana.org.au> Jacob Shin <Jacob.Shin@amd.com> James Bottomley <jejb@mulgrave.(none)> diff --git a/MAINTAINERS b/MAINTAINERS index ddb9ac8d32b3..3589d67437f8 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -724,15 +724,15 @@ F: include/uapi/linux/apm_bios.h F: drivers/char/apm-emulation.c APPLE BCM5974 MULTITOUCH DRIVER -M: Henrik Rydberg <rydberg@euromail.se> +M: Henrik Rydberg <rydberg@bitmath.org> L: linux-input@vger.kernel.org -S: Maintained +S: Odd fixes F: drivers/input/mouse/bcm5974.c APPLE SMC DRIVER -M: Henrik Rydberg <rydberg@euromail.se> +M: Henrik Rydberg <rydberg@bitmath.org> L: lm-sensors@lm-sensors.org -S: Maintained +S: Odd fixes F: drivers/hwmon/applesmc.c APPLETALK NETWORK LAYER @@ -2259,6 +2259,7 @@ F: drivers/gpio/gpio-bt8xx.c BTRFS FILE SYSTEM M: Chris Mason <clm@fb.com> M: Josef Bacik <jbacik@fb.com> +M: David Sterba <dsterba@suse.cz> L: linux-btrfs@vger.kernel.org W: http://btrfs.wiki.kernel.org/ Q: http://patchwork.kernel.org/project/linux-btrfs/list/ @@ -4940,10 +4941,10 @@ F: include/uapi/linux/input.h F: include/linux/input/ INPUT MULTITOUCH (MT) PROTOCOL -M: Henrik Rydberg <rydberg@euromail.se> +M: Henrik Rydberg <rydberg@bitmath.org> L: linux-input@vger.kernel.org T: git git://git.kernel.org/pub/scm/linux/kernel/git/rydberg/input-mt.git -S: Maintained +S: Odd fixes F: Documentation/input/multi-touch-protocol.txt F: drivers/input/input-mt.c K: \b(ABS|SYN)_MT_ @@ -391,6 +391,7 @@ USERINCLUDE := \ # Needed to be compatible with the O= option LINUXINCLUDE := \ -I$(srctree)/arch/$(hdr-arch)/include \ + -Iarch/$(hdr-arch)/include/generated/uapi \ -Iarch/$(hdr-arch)/include/generated \ $(if $(KBUILD_SRC), -I$(srctree)/include) \ -Iinclude \ diff --git a/arch/blackfin/mach-bf533/boards/stamp.c b/arch/blackfin/mach-bf533/boards/stamp.c index 6f4bac969bf7..23eada79439c 100644 --- a/arch/blackfin/mach-bf533/boards/stamp.c +++ b/arch/blackfin/mach-bf533/boards/stamp.c @@ -7,6 +7,7 @@ */ #include <linux/device.h> +#include <linux/delay.h> #include <linux/platform_device.h> #include <linux/mtd/mtd.h> #include <linux/mtd/partitions.h> diff --git a/arch/ia64/kernel/acpi.c b/arch/ia64/kernel/acpi.c index 615ef81def49..e795cb848154 100644 --- a/arch/ia64/kernel/acpi.c +++ b/arch/ia64/kernel/acpi.c @@ -893,13 +893,13 @@ static int _acpi_map_lsapic(acpi_handle handle, int physid, int *pcpu) } /* wrapper to silence section mismatch warning */ -int __ref acpi_map_lsapic(acpi_handle handle, int physid, int *pcpu) +int __ref acpi_map_cpu(acpi_handle handle, int physid, int *pcpu) { return _acpi_map_lsapic(handle, physid, pcpu); } -EXPORT_SYMBOL(acpi_map_lsapic); +EXPORT_SYMBOL(acpi_map_cpu); -int acpi_unmap_lsapic(int cpu) +int acpi_unmap_cpu(int cpu) { ia64_cpu_to_sapicid[cpu] = -1; set_cpu_present(cpu, false); @@ -910,8 +910,7 @@ int acpi_unmap_lsapic(int cpu) return (0); } - -EXPORT_SYMBOL(acpi_unmap_lsapic); +EXPORT_SYMBOL(acpi_unmap_cpu); #endif /* CONFIG_ACPI_HOTPLUG_CPU */ #ifdef CONFIG_ACPI_NUMA diff --git a/arch/x86/crypto/Makefile b/arch/x86/crypto/Makefile index fd0f848938cc..5a4a089e8b1f 100644 --- a/arch/x86/crypto/Makefile +++ b/arch/x86/crypto/Makefile @@ -26,7 +26,6 @@ obj-$(CONFIG_CRYPTO_GHASH_CLMUL_NI_INTEL) += ghash-clmulni-intel.o obj-$(CONFIG_CRYPTO_CRC32C_INTEL) += crc32c-intel.o obj-$(CONFIG_CRYPTO_SHA1_SSSE3) += sha1-ssse3.o -obj-$(CONFIG_CRYPTO_SHA1_MB) += sha-mb/ obj-$(CONFIG_CRYPTO_CRC32_PCLMUL) += crc32-pclmul.o obj-$(CONFIG_CRYPTO_SHA256_SSSE3) += sha256-ssse3.o obj-$(CONFIG_CRYPTO_SHA512_SSSE3) += sha512-ssse3.o @@ -46,6 +45,7 @@ endif ifeq ($(avx2_supported),yes) obj-$(CONFIG_CRYPTO_CAMELLIA_AESNI_AVX2_X86_64) += camellia-aesni-avx2.o obj-$(CONFIG_CRYPTO_SERPENT_AVX2_X86_64) += serpent-avx2.o + obj-$(CONFIG_CRYPTO_SHA1_MB) += sha-mb/ endif aes-i586-y := aes-i586-asm_32.o aes_glue.o diff --git a/arch/x86/crypto/aes_ctrby8_avx-x86_64.S b/arch/x86/crypto/aes_ctrby8_avx-x86_64.S index 2df2a0298f5a..a916c4a61165 100644 --- a/arch/x86/crypto/aes_ctrby8_avx-x86_64.S +++ b/arch/x86/crypto/aes_ctrby8_avx-x86_64.S @@ -208,7 +208,7 @@ ddq_add_8: .if (klen == KEY_128) .if (load_keys) - vmovdqa 3*16(p_keys), xkeyA + vmovdqa 3*16(p_keys), xkey4 .endif .else vmovdqa 3*16(p_keys), xkeyA @@ -224,7 +224,7 @@ ddq_add_8: add $(16*by), p_in .if (klen == KEY_128) - vmovdqa 4*16(p_keys), xkey4 + vmovdqa 4*16(p_keys), xkeyB .else .if (load_keys) vmovdqa 4*16(p_keys), xkey4 @@ -234,7 +234,12 @@ ddq_add_8: .set i, 0 .rept by club XDATA, i - vaesenc xkeyA, var_xdata, var_xdata /* key 3 */ + /* key 3 */ + .if (klen == KEY_128) + vaesenc xkey4, var_xdata, var_xdata + .else + vaesenc xkeyA, var_xdata, var_xdata + .endif .set i, (i +1) .endr @@ -243,13 +248,18 @@ ddq_add_8: .set i, 0 .rept by club XDATA, i - vaesenc xkey4, var_xdata, var_xdata /* key 4 */ + /* key 4 */ + .if (klen == KEY_128) + vaesenc xkeyB, var_xdata, var_xdata + .else + vaesenc xkey4, var_xdata, var_xdata + .endif .set i, (i +1) .endr .if (klen == KEY_128) .if (load_keys) - vmovdqa 6*16(p_keys), xkeyB + vmovdqa 6*16(p_keys), xkey8 .endif .else vmovdqa 6*16(p_keys), xkeyB @@ -267,12 +277,17 @@ ddq_add_8: .set i, 0 .rept by club XDATA, i - vaesenc xkeyB, var_xdata, var_xdata /* key 6 */ + /* key 6 */ + .if (klen == KEY_128) + vaesenc xkey8, var_xdata, var_xdata + .else + vaesenc xkeyB, var_xdata, var_xdata + .endif .set i, (i +1) .endr .if (klen == KEY_128) - vmovdqa 8*16(p_keys), xkey8 + vmovdqa 8*16(p_keys), xkeyB .else .if (load_keys) vmovdqa 8*16(p_keys), xkey8 @@ -288,7 +303,7 @@ ddq_add_8: .if (klen == KEY_128) .if (load_keys) - vmovdqa 9*16(p_keys), xkeyA + vmovdqa 9*16(p_keys), xkey12 .endif .else vmovdqa 9*16(p_keys), xkeyA @@ -297,7 +312,12 @@ ddq_add_8: .set i, 0 .rept by club XDATA, i - vaesenc xkey8, var_xdata, var_xdata /* key 8 */ + /* key 8 */ + .if (klen == KEY_128) + vaesenc xkeyB, var_xdata, var_xdata + .else + vaesenc xkey8, var_xdata, var_xdata + .endif .set i, (i +1) .endr @@ -306,7 +326,12 @@ ddq_add_8: .set i, 0 .rept by club XDATA, i - vaesenc xkeyA, var_xdata, var_xdata /* key 9 */ + /* key 9 */ + .if (klen == KEY_128) + vaesenc xkey12, var_xdata, var_xdata + .else + vaesenc xkeyA, var_xdata, var_xdata + .endif .set i, (i +1) .endr @@ -412,7 +437,6 @@ ddq_add_8: /* main body of aes ctr load */ .macro do_aes_ctrmain key_len - cmp $16, num_bytes jb .Ldo_return2\key_len diff --git a/arch/x86/kernel/acpi/boot.c b/arch/x86/kernel/acpi/boot.c index 4433a4be8171..d1626364a28a 100644 --- a/arch/x86/kernel/acpi/boot.c +++ b/arch/x86/kernel/acpi/boot.c @@ -750,13 +750,13 @@ static int _acpi_map_lsapic(acpi_handle handle, int physid, int *pcpu) } /* wrapper to silence section mismatch warning */ -int __ref acpi_map_lsapic(acpi_handle handle, int physid, int *pcpu) +int __ref acpi_map_cpu(acpi_handle handle, int physid, int *pcpu) { return _acpi_map_lsapic(handle, physid, pcpu); } -EXPORT_SYMBOL(acpi_map_lsapic); +EXPORT_SYMBOL(acpi_map_cpu); -int acpi_unmap_lsapic(int cpu) +int acpi_unmap_cpu(int cpu) { #ifdef CONFIG_ACPI_NUMA set_apicid_to_node(per_cpu(x86_cpu_to_apicid, cpu), NUMA_NO_NODE); @@ -768,8 +768,7 @@ int acpi_unmap_lsapic(int cpu) return (0); } - -EXPORT_SYMBOL(acpi_unmap_lsapic); +EXPORT_SYMBOL(acpi_unmap_cpu); #endif /* CONFIG_ACPI_HOTPLUG_CPU */ int acpi_register_ioapic(acpi_handle handle, u64 phys_addr, u32 gsi_base) diff --git a/drivers/acpi/acpi_processor.c b/drivers/acpi/acpi_processor.c index 1fdf5e07a1c7..1020b1b53a17 100644 --- a/drivers/acpi/acpi_processor.c +++ b/drivers/acpi/acpi_processor.c @@ -170,7 +170,7 @@ static int acpi_processor_hotadd_init(struct acpi_processor *pr) acpi_status status; int ret; - if (pr->apic_id == -1) + if (pr->phys_id == -1) return -ENODEV; status = acpi_evaluate_integer(pr->handle, "_STA", NULL, &sta); @@ -180,13 +180,13 @@ static int acpi_processor_hotadd_init(struct acpi_processor *pr) cpu_maps_update_begin(); cpu_hotplug_begin(); - ret = acpi_map_lsapic(pr->handle, pr->apic_id, &pr->id); + ret = acpi_map_cpu(pr->handle, pr->phys_id, &pr->id); if (ret) goto out; ret = arch_register_cpu(pr->id); if (ret) { - acpi_unmap_lsapic(pr->id); + acpi_unmap_cpu(pr->id); goto out; } @@ -215,7 +215,7 @@ static int acpi_processor_get_info(struct acpi_device *device) union acpi_object object = { 0 }; struct acpi_buffer buffer = { sizeof(union acpi_object), &object }; struct acpi_processor *pr = acpi_driver_data(device); - int apic_id, cpu_index, device_declaration = 0; + int phys_id, cpu_index, device_declaration = 0; acpi_status status = AE_OK; static int cpu0_initialized; unsigned long long value; @@ -262,15 +262,18 @@ static int acpi_processor_get_info(struct acpi_device *device) pr->acpi_id = value; } - apic_id = acpi_get_apicid(pr->handle, device_declaration, pr->acpi_id); - if (apic_id < 0) - acpi_handle_debug(pr->handle, "failed to get CPU APIC ID.\n"); - pr->apic_id = apic_id; + phys_id = acpi_get_phys_id(pr->handle, device_declaration, pr->acpi_id); + if (phys_id < 0) + acpi_handle_debug(pr->handle, "failed to get CPU physical ID.\n"); + pr->phys_id = phys_id; - cpu_index = acpi_map_cpuid(pr->apic_id, pr->acpi_id); + cpu_index = acpi_map_cpuid(pr->phys_id, pr->acpi_id); if (!cpu0_initialized && !acpi_has_cpu_in_madt()) { cpu0_initialized = 1; - /* Handle UP system running SMP kernel, with no LAPIC in MADT */ + /* + * Handle UP system running SMP kernel, with no CPU + * entry in MADT + */ if ((cpu_index == -1) && (num_online_cpus() == 1)) cpu_index = 0; } @@ -458,7 +461,7 @@ static void acpi_processor_remove(struct acpi_device *device) /* Remove the CPU. */ arch_unregister_cpu(pr->id); - acpi_unmap_lsapic(pr->id); + acpi_unmap_cpu(pr->id); cpu_hotplug_done(); cpu_maps_update_done(); diff --git a/drivers/acpi/device_pm.c b/drivers/acpi/device_pm.c index c2daa85fc9f7..c0d44d394ca3 100644 --- a/drivers/acpi/device_pm.c +++ b/drivers/acpi/device_pm.c @@ -257,7 +257,7 @@ int acpi_bus_init_power(struct acpi_device *device) device->power.state = ACPI_STATE_UNKNOWN; if (!acpi_device_is_present(device)) - return 0; + return -ENXIO; result = acpi_device_get_power(device, &state); if (result) diff --git a/drivers/acpi/processor_core.c b/drivers/acpi/processor_core.c index 342942f90a10..02e48394276c 100644 --- a/drivers/acpi/processor_core.c +++ b/drivers/acpi/processor_core.c @@ -69,7 +69,7 @@ static int map_madt_entry(int type, u32 acpi_id) unsigned long madt_end, entry; static struct acpi_table_madt *madt; static int read_madt; - int apic_id = -1; + int phys_id = -1; /* CPU hardware ID */ if (!read_madt) { if (ACPI_FAILURE(acpi_get_table(ACPI_SIG_MADT, 0, @@ -79,7 +79,7 @@ static int map_madt_entry(int type, u32 acpi_id) } if (!madt) - return apic_id; + return phys_id; entry = (unsigned long)madt; madt_end = entry + madt->header.length; @@ -91,18 +91,18 @@ static int map_madt_entry(int type, u32 acpi_id) struct acpi_subtable_header *header = (struct acpi_subtable_header *)entry; if (header->type == ACPI_MADT_TYPE_LOCAL_APIC) { - if (!map_lapic_id(header, acpi_id, &apic_id)) + if (!map_lapic_id(header, acpi_id, &phys_id)) break; } else if (header->type == ACPI_MADT_TYPE_LOCAL_X2APIC) { - if (!map_x2apic_id(header, type, acpi_id, &apic_id)) + if (!map_x2apic_id(header, type, acpi_id, &phys_id)) break; } else if (header->type == ACPI_MADT_TYPE_LOCAL_SAPIC) { - if (!map_lsapic_id(header, type, acpi_id, &apic_id)) + if (!map_lsapic_id(header, type, acpi_id, &phys_id)) break; } entry += header->length; } - return apic_id; + return phys_id; } static int map_mat_entry(acpi_handle handle, int type, u32 acpi_id) @@ -110,7 +110,7 @@ static int map_mat_entry(acpi_handle handle, int type, u32 acpi_id) struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL }; union acpi_object *obj; struct acpi_subtable_header *header; - int apic_id = -1; + int phys_id = -1; if (ACPI_FAILURE(acpi_evaluate_object(handle, "_MAT", NULL, &buffer))) goto exit; @@ -126,38 +126,38 @@ static int map_mat_entry(acpi_handle handle, int type, u32 acpi_id) header = (struct acpi_subtable_header *)obj->buffer.pointer; if (header->type == ACPI_MADT_TYPE_LOCAL_APIC) - map_lapic_id(header, acpi_id, &apic_id); + map_lapic_id(header, acpi_id, &phys_id); else if (header->type == ACPI_MADT_TYPE_LOCAL_SAPIC) - map_lsapic_id(header, type, acpi_id, &apic_id); + map_lsapic_id(header, type, acpi_id, &phys_id); else if (header->type == ACPI_MADT_TYPE_LOCAL_X2APIC) - map_x2apic_id(header, type, acpi_id, &apic_id); + map_x2apic_id(header, type, acpi_id, &phys_id); exit: kfree(buffer.pointer); - return apic_id; + return phys_id; } -int acpi_get_apicid(acpi_handle handle, int type, u32 acpi_id) +int acpi_get_phys_id(acpi_handle handle, int type, u32 acpi_id) { - int apic_id; + int phys_id; - apic_id = map_mat_entry(handle, type, acpi_id); - if (apic_id == -1) - apic_id = map_madt_entry(type, acpi_id); + phys_id = map_mat_entry(handle, type, acpi_id); + if (phys_id == -1) + phys_id = map_madt_entry(type, acpi_id); - return apic_id; + return phys_id; } -int acpi_map_cpuid(int apic_id, u32 acpi_id) +int acpi_map_cpuid(int phys_id, u32 acpi_id) { #ifdef CONFIG_SMP int i; #endif - if (apic_id == -1) { + if (phys_id == -1) { /* * On UP processor, there is no _MAT or MADT table. - * So above apic_id is always set to -1. + * So above phys_id is always set to -1. * * BIOS may define multiple CPU handles even for UP processor. * For example, @@ -170,7 +170,7 @@ int acpi_map_cpuid(int apic_id, u32 acpi_id) * Processor (CPU3, 0x03, 0x00000410, 0x06) {} * } * - * Ignores apic_id and always returns 0 for the processor + * Ignores phys_id and always returns 0 for the processor * handle with acpi id 0 if nr_cpu_ids is 1. * This should be the case if SMP tables are not found. * Return -1 for other CPU's handle. @@ -178,28 +178,28 @@ int acpi_map_cpuid(int apic_id, u32 acpi_id) if (nr_cpu_ids <= 1 && acpi_id == 0) return acpi_id; else - return apic_id; + return phys_id; } #ifdef CONFIG_SMP for_each_possible_cpu(i) { - if (cpu_physical_id(i) == apic_id) + if (cpu_physical_id(i) == phys_id) return i; } #else /* In UP kernel, only processor 0 is valid */ - if (apic_id == 0) - return apic_id; + if (phys_id == 0) + return phys_id; #endif return -1; } int acpi_get_cpuid(acpi_handle handle, int type, u32 acpi_id) { - int apic_id; + int phys_id; - apic_id = acpi_get_apicid(handle, type, acpi_id); + phys_id = acpi_get_phys_id(handle, type, acpi_id); - return acpi_map_cpuid(apic_id, acpi_id); + return acpi_map_cpuid(phys_id, acpi_id); } EXPORT_SYMBOL_GPL(acpi_get_cpuid); diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c index 16914cc30882..dc4d8960684a 100644 --- a/drivers/acpi/scan.c +++ b/drivers/acpi/scan.c @@ -1001,7 +1001,7 @@ static void acpi_free_power_resources_lists(struct acpi_device *device) if (device->wakeup.flags.valid) acpi_power_resources_list_free(&device->wakeup.resources); - if (!device->flags.power_manageable) + if (!device->power.flags.power_resources) return; for (i = ACPI_STATE_D0; i <= ACPI_STATE_D3_HOT; i++) { @@ -1744,10 +1744,8 @@ static void acpi_bus_get_power_flags(struct acpi_device *device) device->power.flags.power_resources) device->power.states[ACPI_STATE_D3_COLD].flags.os_accessible = 1; - if (acpi_bus_init_power(device)) { - acpi_free_power_resources_lists(device); + if (acpi_bus_init_power(device)) device->flags.power_manageable = 0; - } } static void acpi_bus_get_flags(struct acpi_device *device) @@ -2371,13 +2369,18 @@ static void acpi_bus_attach(struct acpi_device *device) /* Skip devices that are not present. */ if (!acpi_device_is_present(device)) { device->flags.visited = false; + device->flags.power_manageable = 0; return; } if (device->handler) goto ok; if (!device->flags.initialized) { - acpi_bus_update_power(device, NULL); + device->flags.power_manageable = + device->power.states[ACPI_STATE_D0].flags.valid; + if (acpi_bus_init_power(device)) + device->flags.power_manageable = 0; + device->flags.initialized = true; } device->flags.visited = false; diff --git a/drivers/acpi/video.c b/drivers/acpi/video.c index c72e79d2c5ad..032db459370f 100644 --- a/drivers/acpi/video.c +++ b/drivers/acpi/video.c @@ -522,6 +522,16 @@ static struct dmi_system_id video_dmi_table[] __initdata = { DMI_MATCH(DMI_PRODUCT_NAME, "370R4E/370R4V/370R5E/3570RE/370R5V"), }, }, + + { + /* https://bugzilla.redhat.com/show_bug.cgi?id=1163574 */ + .callback = video_disable_native_backlight, + .ident = "Dell XPS15 L521X", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), + DMI_MATCH(DMI_PRODUCT_NAME, "XPS L521X"), + }, + }, {} }; diff --git a/drivers/char/ipmi/ipmi_ssif.c b/drivers/char/ipmi/ipmi_ssif.c index fd5a5e85d7dc..982b96323f82 100644 --- a/drivers/char/ipmi/ipmi_ssif.c +++ b/drivers/char/ipmi/ipmi_ssif.c @@ -969,7 +969,8 @@ static void sender(void *send_info, do_gettimeofday(&t); pr_info("**Enqueue %02x %02x: %ld.%6.6ld\n", - msg->data[0], msg->data[1], t.tv_sec, t.tv_usec); + msg->data[0], msg->data[1], + (long) t.tv_sec, (long) t.tv_usec); } } diff --git a/drivers/iommu/intel-iommu.c b/drivers/iommu/intel-iommu.c index 1232336b960e..40dfbc0444c0 100644 --- a/drivers/iommu/intel-iommu.c +++ b/drivers/iommu/intel-iommu.c @@ -4029,14 +4029,6 @@ static int device_notifier(struct notifier_block *nb, if (action != BUS_NOTIFY_REMOVED_DEVICE) return 0; - /* - * If the device is still attached to a device driver we can't - * tear down the domain yet as DMA mappings may still be in use. - * Wait for the BUS_NOTIFY_UNBOUND_DRIVER event to do that. - */ - if (action == BUS_NOTIFY_DEL_DEVICE && dev->driver != NULL) - return 0; - domain = find_domain(dev); if (!domain) return 0; @@ -4428,6 +4420,10 @@ static int intel_iommu_attach_device(struct iommu_domain *domain, domain_remove_one_dev_info(old_domain, dev); else domain_remove_dev_info(old_domain); + + if (!domain_type_is_vm_or_si(old_domain) && + list_empty(&old_domain->devices)) + domain_exit(old_domain); } } diff --git a/drivers/iommu/ipmmu-vmsa.c b/drivers/iommu/ipmmu-vmsa.c index 68dfb0fd5ee9..748693192c20 100644 --- a/drivers/iommu/ipmmu-vmsa.c +++ b/drivers/iommu/ipmmu-vmsa.c @@ -558,7 +558,7 @@ static pmd_t *ipmmu_alloc_pmd(struct ipmmu_vmsa_device *mmu, pgd_t *pgd, static u64 ipmmu_page_prot(unsigned int prot, u64 type) { - u64 pgprot = ARM_VMSA_PTE_XN | ARM_VMSA_PTE_nG | ARM_VMSA_PTE_AF + u64 pgprot = ARM_VMSA_PTE_nG | ARM_VMSA_PTE_AF | ARM_VMSA_PTE_SH_IS | ARM_VMSA_PTE_AP_UNPRIV | ARM_VMSA_PTE_NS | type; @@ -568,8 +568,8 @@ static u64 ipmmu_page_prot(unsigned int prot, u64 type) if (prot & IOMMU_CACHE) pgprot |= IMMAIR_ATTR_IDX_WBRWA << ARM_VMSA_PTE_ATTRINDX_SHIFT; - if (prot & IOMMU_EXEC) - pgprot &= ~ARM_VMSA_PTE_XN; + if (prot & IOMMU_NOEXEC) + pgprot |= ARM_VMSA_PTE_XN; else if (!(prot & (IOMMU_READ | IOMMU_WRITE))) /* If no access create a faulting entry to avoid TLB fills. */ pgprot &= ~ARM_VMSA_PTE_PAGE; diff --git a/drivers/iommu/rockchip-iommu.c b/drivers/iommu/rockchip-iommu.c index b2023af384b9..6a8b1ec4a48a 100644 --- a/drivers/iommu/rockchip-iommu.c +++ b/drivers/iommu/rockchip-iommu.c @@ -1009,7 +1009,6 @@ static struct platform_driver rk_iommu_driver = { .remove = rk_iommu_remove, .driver = { .name = "rk_iommu", - .owner = THIS_MODULE, .of_match_table = of_match_ptr(rk_iommu_dt_ids), }, }; diff --git a/drivers/net/ethernet/allwinner/sun4i-emac.c b/drivers/net/ethernet/allwinner/sun4i-emac.c index 1fcd5568a352..f3470d96837a 100644 --- a/drivers/net/ethernet/allwinner/sun4i-emac.c +++ b/drivers/net/ethernet/allwinner/sun4i-emac.c @@ -850,8 +850,10 @@ static int emac_probe(struct platform_device *pdev) } db->clk = devm_clk_get(&pdev->dev, NULL); - if (IS_ERR(db->clk)) + if (IS_ERR(db->clk)) { + ret = PTR_ERR(db->clk); goto out; + } clk_prepare_enable(db->clk); diff --git a/drivers/net/ethernet/altera/altera_tse_main.c b/drivers/net/ethernet/altera/altera_tse_main.c index 3498760dc22a..760c72c6e2ac 100644 --- a/drivers/net/ethernet/altera/altera_tse_main.c +++ b/drivers/net/ethernet/altera/altera_tse_main.c @@ -1170,10 +1170,6 @@ tx_request_irq_error: init_error: free_skbufs(dev); alloc_skbuf_error: - if (priv->phydev) { - phy_disconnect(priv->phydev); - priv->phydev = NULL; - } phy_error: return ret; } @@ -1186,12 +1182,9 @@ static int tse_shutdown(struct net_device *dev) int ret; unsigned long int flags; - /* Stop and disconnect the PHY */ - if (priv->phydev) { + /* Stop the PHY */ + if (priv->phydev) phy_stop(priv->phydev); - phy_disconnect(priv->phydev); - priv->phydev = NULL; - } netif_stop_queue(dev); napi_disable(&priv->napi); @@ -1525,6 +1518,10 @@ err_free_netdev: static int altera_tse_remove(struct platform_device *pdev) { struct net_device *ndev = platform_get_drvdata(pdev); + struct altera_tse_private *priv = netdev_priv(ndev); + + if (priv->phydev) + phy_disconnect(priv->phydev); platform_set_drvdata(pdev, NULL); altera_tse_mdio_destroy(ndev); diff --git a/drivers/net/ethernet/cisco/enic/enic_main.c b/drivers/net/ethernet/cisco/enic/enic_main.c index 705f334ebb85..b29e027c476e 100644 --- a/drivers/net/ethernet/cisco/enic/enic_main.c +++ b/drivers/net/ethernet/cisco/enic/enic_main.c @@ -1616,7 +1616,7 @@ static int enic_open(struct net_device *netdev) if (vnic_rq_desc_used(&enic->rq[i]) == 0) { netdev_err(netdev, "Unable to alloc receive buffers\n"); err = -ENOMEM; - goto err_out_notify_unset; + goto err_out_free_rq; } } @@ -1649,7 +1649,9 @@ static int enic_open(struct net_device *netdev) return 0; -err_out_notify_unset: +err_out_free_rq: + for (i = 0; i < enic->rq_count; i++) + vnic_rq_clean(&enic->rq[i], enic_free_rq_buf); enic_dev_notify_unset(enic); err_out_free_intr: enic_free_intr(enic); diff --git a/drivers/net/ethernet/intel/e100.c b/drivers/net/ethernet/intel/e100.c index 781065eb5431..e9c3a87e5b11 100644 --- a/drivers/net/ethernet/intel/e100.c +++ b/drivers/net/ethernet/intel/e100.c @@ -1543,7 +1543,7 @@ static int e100_phy_init(struct nic *nic) mdio_write(netdev, nic->mii.phy_id, MII_BMCR, bmcr); } else if ((nic->mac >= mac_82550_D102) || ((nic->flags & ich) && (mdio_read(netdev, nic->mii.phy_id, MII_TPISTATUS) & 0x8000) && - !(nic->eeprom[eeprom_cnfg_mdix] & eeprom_mdix_enabled))) { + (nic->eeprom[eeprom_cnfg_mdix] & eeprom_mdix_enabled))) { /* enable/disable MDI/MDI-X auto-switching. */ mdio_write(netdev, nic->mii.phy_id, MII_NCONFIG, nic->mii.force_media ? 0 : NCONFIG_AUTO_SWITCH); diff --git a/drivers/net/ethernet/intel/i40e/i40e_debugfs.c b/drivers/net/ethernet/intel/i40e/i40e_debugfs.c index 433a55886ad2..cb0de455683e 100644 --- a/drivers/net/ethernet/intel/i40e/i40e_debugfs.c +++ b/drivers/net/ethernet/intel/i40e/i40e_debugfs.c @@ -829,7 +829,7 @@ static void i40e_dbg_dump_desc(int cnt, int vsi_seid, int ring_id, int desc_n, if (desc_n >= ring->count || desc_n < 0) { dev_info(&pf->pdev->dev, "descriptor %d not found\n", desc_n); - return; + goto out; } if (!is_rx_ring) { txd = I40E_TX_DESC(ring, desc_n); @@ -855,6 +855,8 @@ static void i40e_dbg_dump_desc(int cnt, int vsi_seid, int ring_id, int desc_n, } else { dev_info(&pf->pdev->dev, "dump desc rx/tx <vsi_seid> <ring_id> [<desc_n>]\n"); } + +out: kfree(ring); } diff --git a/drivers/net/ethernet/intel/igb/e1000_82575.c b/drivers/net/ethernet/intel/igb/e1000_82575.c index 051ea94bdcd3..0f69ef81751a 100644 --- a/drivers/net/ethernet/intel/igb/e1000_82575.c +++ b/drivers/net/ethernet/intel/igb/e1000_82575.c @@ -1125,7 +1125,7 @@ static s32 igb_acquire_swfw_sync_82575(struct e1000_hw *hw, u16 mask) u32 swmask = mask; u32 fwmask = mask << 16; s32 ret_val = 0; - s32 i = 0, timeout = 200; /* FIXME: find real value to use here */ + s32 i = 0, timeout = 200; while (i < timeout) { if (igb_get_hw_semaphore(hw)) { diff --git a/drivers/net/ethernet/mellanox/mlx4/main.c b/drivers/net/ethernet/mellanox/mlx4/main.c index 943cbd47d832..03e9eb0dc761 100644 --- a/drivers/net/ethernet/mellanox/mlx4/main.c +++ b/drivers/net/ethernet/mellanox/mlx4/main.c @@ -1829,7 +1829,7 @@ static int mlx4_init_hca(struct mlx4_dev *dev) err = mlx4_dev_cap(dev, &dev_cap); if (err) { mlx4_err(dev, "QUERY_DEV_CAP command failed, aborting\n"); - goto err_stop_fw; + return err; } choose_steering_mode(dev, &dev_cap); @@ -1860,7 +1860,7 @@ static int mlx4_init_hca(struct mlx4_dev *dev) &init_hca); if ((long long) icm_size < 0) { err = icm_size; - goto err_stop_fw; + return err; } dev->caps.max_fmr_maps = (1 << (32 - ilog2(dev->caps.num_mpts))) - 1; @@ -1874,7 +1874,7 @@ static int mlx4_init_hca(struct mlx4_dev *dev) err = mlx4_init_icm(dev, &dev_cap, &init_hca, icm_size); if (err) - goto err_stop_fw; + return err; err = mlx4_INIT_HCA(dev, &init_hca); if (err) { @@ -1886,7 +1886,7 @@ static int mlx4_init_hca(struct mlx4_dev *dev) err = mlx4_query_func(dev, &dev_cap); if (err < 0) { mlx4_err(dev, "QUERY_FUNC command failed, aborting.\n"); - goto err_stop_fw; + goto err_close; } else if (err & MLX4_QUERY_FUNC_NUM_SYS_EQS) { dev->caps.num_eqs = dev_cap.max_eqs; dev->caps.reserved_eqs = dev_cap.reserved_eqs; @@ -2006,11 +2006,6 @@ err_free_icm: if (!mlx4_is_slave(dev)) mlx4_free_icms(dev); -err_stop_fw: - if (!mlx4_is_slave(dev)) { - mlx4_UNMAP_FA(dev); - mlx4_free_icm(dev, priv->fw.fw_icm, 0); - } return err; } diff --git a/drivers/net/ethernet/mellanox/mlx4/mr.c b/drivers/net/ethernet/mellanox/mlx4/mr.c index d6f549685c0f..7094a9c70fd5 100644 --- a/drivers/net/ethernet/mellanox/mlx4/mr.c +++ b/drivers/net/ethernet/mellanox/mlx4/mr.c @@ -584,6 +584,7 @@ EXPORT_SYMBOL_GPL(mlx4_mr_free); void mlx4_mr_rereg_mem_cleanup(struct mlx4_dev *dev, struct mlx4_mr *mr) { mlx4_mtt_cleanup(dev, &mr->mtt); + mr->mtt.order = -1; } EXPORT_SYMBOL_GPL(mlx4_mr_rereg_mem_cleanup); @@ -593,14 +594,14 @@ int mlx4_mr_rereg_mem_write(struct mlx4_dev *dev, struct mlx4_mr *mr, { int err; - mpt_entry->start = cpu_to_be64(iova); - mpt_entry->length = cpu_to_be64(size); - mpt_entry->entity_size = cpu_to_be32(page_shift); - err = mlx4_mtt_init(dev, npages, page_shift, &mr->mtt); if (err) return err; + mpt_entry->start = cpu_to_be64(mr->iova); + mpt_entry->length = cpu_to_be64(mr->size); + mpt_entry->entity_size = cpu_to_be32(mr->mtt.page_shift); + mpt_entry->pd_flags &= cpu_to_be32(MLX4_MPT_PD_MASK | MLX4_MPT_PD_FLAG_EN_INV); mpt_entry->flags &= cpu_to_be32(MLX4_MPT_FLAG_FREE | diff --git a/drivers/net/ethernet/myricom/myri10ge/myri10ge.c b/drivers/net/ethernet/myricom/myri10ge/myri10ge.c index af099057f0e9..71af98bb72cb 100644 --- a/drivers/net/ethernet/myricom/myri10ge/myri10ge.c +++ b/drivers/net/ethernet/myricom/myri10ge/myri10ge.c @@ -4033,8 +4033,10 @@ static int myri10ge_probe(struct pci_dev *pdev, const struct pci_device_id *ent) (void)pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64)); mgp->cmd = dma_alloc_coherent(&pdev->dev, sizeof(*mgp->cmd), &mgp->cmd_bus, GFP_KERNEL); - if (mgp->cmd == NULL) + if (!mgp->cmd) { + status = -ENOMEM; goto abort_with_enabled; + } mgp->board_span = pci_resource_len(pdev, 0); mgp->iomem_base = pci_resource_start(pdev, 0); diff --git a/drivers/net/ethernet/qlogic/qla3xxx.c b/drivers/net/ethernet/qlogic/qla3xxx.c index c2f09af5c25b..4847713211ca 100644 --- a/drivers/net/ethernet/qlogic/qla3xxx.c +++ b/drivers/net/ethernet/qlogic/qla3xxx.c @@ -146,10 +146,7 @@ static int ql_wait_for_drvr_lock(struct ql3_adapter *qdev) { int i = 0; - while (i < 10) { - if (i) - ssleep(1); - + do { if (ql_sem_lock(qdev, QL_DRVR_SEM_MASK, (QL_RESOURCE_BITS_BASE_CODE | (qdev->mac_index) @@ -158,7 +155,8 @@ static int ql_wait_for_drvr_lock(struct ql3_adapter *qdev) "driver lock acquired\n"); return 1; } - } + ssleep(1); + } while (++i < 10); netdev_err(qdev->ndev, "Timed out waiting for driver lock...\n"); return 0; diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c index 9929b97cfb36..2528c3fb6b90 100644 --- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c +++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c @@ -2605,6 +2605,7 @@ qlcnic_probe(struct pci_dev *pdev, const struct pci_device_id *ent) } else { dev_err(&pdev->dev, "%s: failed. Please Reboot\n", __func__); + err = -ENODEV; goto err_out_free_hw; } diff --git a/drivers/net/ethernet/ti/cpsw.c b/drivers/net/ethernet/ti/cpsw.c index c560f9aeb55d..e61ee8351272 100644 --- a/drivers/net/ethernet/ti/cpsw.c +++ b/drivers/net/ethernet/ti/cpsw.c @@ -757,6 +757,14 @@ requeue: static irqreturn_t cpsw_interrupt(int irq, void *dev_id) { struct cpsw_priv *priv = dev_id; + int value = irq - priv->irqs_table[0]; + + /* NOTICE: Ending IRQ here. The trick with the 'value' variable above + * is to make sure we will always write the correct value to the EOI + * register. Namely 0 for RX_THRESH Interrupt, 1 for RX Interrupt, 2 + * for TX Interrupt and 3 for MISC Interrupt. + */ + cpdma_ctlr_eoi(priv->dma, value); cpsw_intr_disable(priv); if (priv->irq_enabled == true) { @@ -786,8 +794,6 @@ static int cpsw_poll(struct napi_struct *napi, int budget) int num_tx, num_rx; num_tx = cpdma_chan_process(priv->txch, 128); - if (num_tx) - cpdma_ctlr_eoi(priv->dma, CPDMA_EOI_TX); num_rx = cpdma_chan_process(priv->rxch, budget); if (num_rx < budget) { @@ -795,7 +801,6 @@ static int cpsw_poll(struct napi_struct *napi, int budget) napi_complete(napi); cpsw_intr_enable(priv); - cpdma_ctlr_eoi(priv->dma, CPDMA_EOI_RX); prim_cpsw = cpsw_get_slave_priv(priv, 0); if (prim_cpsw->irq_enabled == false) { prim_cpsw->irq_enabled = true; @@ -1310,8 +1315,6 @@ static int cpsw_ndo_open(struct net_device *ndev) napi_enable(&priv->napi); cpdma_ctlr_start(priv->dma); cpsw_intr_enable(priv); - cpdma_ctlr_eoi(priv->dma, CPDMA_EOI_RX); - cpdma_ctlr_eoi(priv->dma, CPDMA_EOI_TX); prim_cpsw = cpsw_get_slave_priv(priv, 0); if (prim_cpsw->irq_enabled == false) { @@ -1578,9 +1581,6 @@ static void cpsw_ndo_tx_timeout(struct net_device *ndev) cpdma_chan_start(priv->txch); cpdma_ctlr_int_ctrl(priv->dma, true); cpsw_intr_enable(priv); - cpdma_ctlr_eoi(priv->dma, CPDMA_EOI_RX); - cpdma_ctlr_eoi(priv->dma, CPDMA_EOI_TX); - } static int cpsw_ndo_set_mac_address(struct net_device *ndev, void *p) @@ -1620,9 +1620,6 @@ static void cpsw_ndo_poll_controller(struct net_device *ndev) cpsw_interrupt(ndev->irq, priv); cpdma_ctlr_int_ctrl(priv->dma, true); cpsw_intr_enable(priv); - cpdma_ctlr_eoi(priv->dma, CPDMA_EOI_RX); - cpdma_ctlr_eoi(priv->dma, CPDMA_EOI_TX); - } #endif diff --git a/drivers/net/ethernet/xilinx/ll_temac_main.c b/drivers/net/ethernet/xilinx/ll_temac_main.c index 9c2d91ea0af4..dbcbf0c5bcfa 100644 --- a/drivers/net/ethernet/xilinx/ll_temac_main.c +++ b/drivers/net/ethernet/xilinx/ll_temac_main.c @@ -1043,6 +1043,7 @@ static int temac_of_probe(struct platform_device *op) lp->regs = of_iomap(op->dev.of_node, 0); if (!lp->regs) { dev_err(&op->dev, "could not map temac regs.\n"); + rc = -ENOMEM; goto nodev; } @@ -1062,6 +1063,7 @@ static int temac_of_probe(struct platform_device *op) np = of_parse_phandle(op->dev.of_node, "llink-connected", 0); if (!np) { dev_err(&op->dev, "could not find DMA node\n"); + rc = -ENODEV; goto err_iounmap; } diff --git a/drivers/net/ethernet/xilinx/xilinx_axienet_main.c b/drivers/net/ethernet/xilinx/xilinx_axienet_main.c index c18a0c637c44..a6d2860b712c 100644 --- a/drivers/net/ethernet/xilinx/xilinx_axienet_main.c +++ b/drivers/net/ethernet/xilinx/xilinx_axienet_main.c @@ -1501,6 +1501,7 @@ static int axienet_of_probe(struct platform_device *op) lp->regs = of_iomap(op->dev.of_node, 0); if (!lp->regs) { dev_err(&op->dev, "could not map Axi Ethernet regs.\n"); + ret = -ENOMEM; goto nodev; } /* Setup checksum offload, but default to off if not specified */ @@ -1563,6 +1564,7 @@ static int axienet_of_probe(struct platform_device *op) np = of_parse_phandle(op->dev.of_node, "axistream-connected", 0); if (!np) { dev_err(&op->dev, "could not find DMA node\n"); + ret = -ENODEV; goto err_iounmap; } lp->dma_regs = of_iomap(np, 0); diff --git a/drivers/net/ethernet/xilinx/xilinx_emaclite.c b/drivers/net/ethernet/xilinx/xilinx_emaclite.c index 24858799c204..9d4ce388510a 100644 --- a/drivers/net/ethernet/xilinx/xilinx_emaclite.c +++ b/drivers/net/ethernet/xilinx/xilinx_emaclite.c @@ -1109,6 +1109,7 @@ static int xemaclite_of_probe(struct platform_device *ofdev) res = platform_get_resource(ofdev, IORESOURCE_IRQ, 0); if (!res) { dev_err(dev, "no IRQ found\n"); + rc = -ENXIO; goto error; } diff --git a/drivers/net/usb/qmi_wwan.c b/drivers/net/usb/qmi_wwan.c index b8a82b86f909..602dc6668c3a 100644 --- a/drivers/net/usb/qmi_wwan.c +++ b/drivers/net/usb/qmi_wwan.c @@ -56,6 +56,8 @@ struct qmi_wwan_state { /* default ethernet address used by the modem */ static const u8 default_modem_addr[ETH_ALEN] = {0x02, 0x50, 0xf3}; +static const u8 buggy_fw_addr[ETH_ALEN] = {0x00, 0xa0, 0xc6, 0x00, 0x00, 0x00}; + /* Make up an ethernet header if the packet doesn't have one. * * A firmware bug common among several devices cause them to send raw @@ -332,10 +334,12 @@ next_desc: usb_driver_release_interface(driver, info->data); } - /* Never use the same address on both ends of the link, even - * if the buggy firmware told us to. + /* Never use the same address on both ends of the link, even if the + * buggy firmware told us to. Or, if device is assigned the well-known + * buggy firmware MAC address, replace it with a random address, */ - if (ether_addr_equal(dev->net->dev_addr, default_modem_addr)) + if (ether_addr_equal(dev->net->dev_addr, default_modem_addr) || + ether_addr_equal(dev->net->dev_addr, buggy_fw_addr)) eth_hw_addr_random(dev->net); /* make MAC addr easily distinguishable from an IP header */ diff --git a/drivers/net/usb/r8152.c b/drivers/net/usb/r8152.c index 2d1c77e81836..57ec23e8ccfa 100644 --- a/drivers/net/usb/r8152.c +++ b/drivers/net/usb/r8152.c @@ -1897,6 +1897,22 @@ static void _rtl8152_set_rx_mode(struct net_device *netdev) netif_wake_queue(netdev); } +static netdev_features_t +rtl8152_features_check(struct sk_buff *skb, struct net_device *dev, + netdev_features_t features) +{ + u32 mss = skb_shinfo(skb)->gso_size; + int max_offset = mss ? GTTCPHO_MAX : TCPHO_MAX; + int offset = skb_transport_offset(skb); + + if ((mss || skb->ip_summed == CHECKSUM_PARTIAL) && offset > max_offset) + features &= ~(NETIF_F_ALL_CSUM | NETIF_F_GSO_MASK); + else if ((skb->len + sizeof(struct tx_desc)) > agg_buf_sz) + features &= ~NETIF_F_GSO_MASK; + + return features; +} + static netdev_tx_t rtl8152_start_xmit(struct sk_buff *skb, struct net_device *netdev) { @@ -3706,6 +3722,7 @@ static const struct net_device_ops rtl8152_netdev_ops = { .ndo_set_mac_address = rtl8152_set_mac_address, .ndo_change_mtu = rtl8152_change_mtu, .ndo_validate_addr = eth_validate_addr, + .ndo_features_check = rtl8152_features_check, }; static void r8152b_get_version(struct r8152 *tp) diff --git a/drivers/net/xen-netback/xenbus.c b/drivers/net/xen-netback/xenbus.c index efbaf2ae1999..794204e34fba 100644 --- a/drivers/net/xen-netback/xenbus.c +++ b/drivers/net/xen-netback/xenbus.c @@ -737,6 +737,7 @@ static void connect(struct backend_info *be) } queue->remaining_credit = credit_bytes; + queue->credit_usec = credit_usec; err = connect_rings(be, queue); if (err) { diff --git a/drivers/pinctrl/pinctrl-rockchip.c b/drivers/pinctrl/pinctrl-rockchip.c index ba74f0aa60c7..3c22dbebc80f 100644 --- a/drivers/pinctrl/pinctrl-rockchip.c +++ b/drivers/pinctrl/pinctrl-rockchip.c @@ -89,6 +89,7 @@ struct rockchip_iomux { * @reg_pull: optional separate register for additional pull settings * @clk: clock of the gpio bank * @irq: interrupt of the gpio bank + * @saved_enables: Saved content of GPIO_INTEN at suspend time. * @pin_base: first pin number * @nr_pins: number of pins in this bank * @name: name of the bank @@ -107,6 +108,7 @@ struct rockchip_pin_bank { struct regmap *regmap_pull; struct clk *clk; int irq; + u32 saved_enables; u32 pin_base; u8 nr_pins; char *name; @@ -1543,6 +1545,51 @@ static int rockchip_irq_set_type(struct irq_data *d, unsigned int type) return 0; } +static void rockchip_irq_suspend(struct irq_data *d) +{ + struct irq_chip_generic *gc = irq_data_get_irq_chip_data(d); + struct rockchip_pin_bank *bank = gc->private; + + bank->saved_enables = irq_reg_readl(gc, GPIO_INTEN); + irq_reg_writel(gc, gc->wake_active, GPIO_INTEN); +} + +static void rockchip_irq_resume(struct irq_data *d) +{ + struct irq_chip_generic *gc = irq_data_get_irq_chip_data(d); + struct rockchip_pin_bank *bank = gc->private; + + irq_reg_writel(gc, bank->saved_enables, GPIO_INTEN); +} + +static void rockchip_irq_disable(struct irq_data *d) +{ + struct irq_chip_generic *gc = irq_data_get_irq_chip_data(d); + u32 val; + + irq_gc_lock(gc); + + val = irq_reg_readl(gc, GPIO_INTEN); + val &= ~d->mask; + irq_reg_writel(gc, val, GPIO_INTEN); + + irq_gc_unlock(gc); +} + +static void rockchip_irq_enable(struct irq_data *d) +{ + struct irq_chip_generic *gc = irq_data_get_irq_chip_data(d); + u32 val; + + irq_gc_lock(gc); + + val = irq_reg_readl(gc, GPIO_INTEN); + val |= d->mask; + irq_reg_writel(gc, val, GPIO_INTEN); + + irq_gc_unlock(gc); +} + static int rockchip_interrupts_register(struct platform_device *pdev, struct rockchip_pinctrl *info) { @@ -1581,12 +1628,16 @@ static int rockchip_interrupts_register(struct platform_device *pdev, gc = irq_get_domain_generic_chip(bank->domain, 0); gc->reg_base = bank->reg_base; gc->private = bank; - gc->chip_types[0].regs.mask = GPIO_INTEN; + gc->chip_types[0].regs.mask = GPIO_INTMASK; gc->chip_types[0].regs.ack = GPIO_PORTS_EOI; gc->chip_types[0].chip.irq_ack = irq_gc_ack_set_bit; - gc->chip_types[0].chip.irq_mask = irq_gc_mask_clr_bit; - gc->chip_types[0].chip.irq_unmask = irq_gc_mask_set_bit; + gc->chip_types[0].chip.irq_mask = irq_gc_mask_set_bit; + gc->chip_types[0].chip.irq_unmask = irq_gc_mask_clr_bit; + gc->chip_types[0].chip.irq_enable = rockchip_irq_enable; + gc->chip_types[0].chip.irq_disable = rockchip_irq_disable; gc->chip_types[0].chip.irq_set_wake = irq_gc_set_wake; + gc->chip_types[0].chip.irq_suspend = rockchip_irq_suspend; + gc->chip_types[0].chip.irq_resume = rockchip_irq_resume; gc->chip_types[0].chip.irq_set_type = rockchip_irq_set_type; gc->wake_enabled = IRQ_MSK(bank->nr_pins); diff --git a/drivers/pinctrl/pinctrl-st.c b/drivers/pinctrl/pinctrl-st.c index 7c9d51382248..9e5ec00084bb 100644 --- a/drivers/pinctrl/pinctrl-st.c +++ b/drivers/pinctrl/pinctrl-st.c @@ -1012,8 +1012,10 @@ static void st_pinconf_dbg_show(struct pinctrl_dev *pctldev, struct seq_file *s, unsigned pin_id) { unsigned long config; - st_pinconf_get(pctldev, pin_id, &config); + mutex_unlock(&pctldev->mutex); + st_pinconf_get(pctldev, pin_id, &config); + mutex_lock(&pctldev->mutex); seq_printf(s, "[OE:%ld,PU:%ld,OD:%ld]\n" "\t\t[retime:%ld,invclk:%ld,clknotdat:%ld," "de:%ld,rt-clk:%ld,rt-delay:%ld]", @@ -1443,6 +1445,7 @@ static struct gpio_chip st_gpio_template = { static struct irq_chip st_gpio_irqchip = { .name = "GPIO", + .irq_disable = st_gpio_irq_mask, .irq_mask = st_gpio_irq_mask, .irq_unmask = st_gpio_irq_unmask, .irq_set_type = st_gpio_irq_set_type, diff --git a/drivers/vhost/net.c b/drivers/vhost/net.c index 14419a8ccbb6..d415d69dc237 100644 --- a/drivers/vhost/net.c +++ b/drivers/vhost/net.c @@ -538,7 +538,7 @@ static int get_rx_bufs(struct vhost_virtqueue *vq, ++headcount; seg += in; } - heads[headcount - 1].len = cpu_to_vhost32(vq, len - datalen); + heads[headcount - 1].len = cpu_to_vhost32(vq, len + datalen); *iovcount = seg; if (unlikely(log)) *log_num = nlogs; diff --git a/drivers/virtio/virtio_pci_common.c b/drivers/virtio/virtio_pci_common.c index 2ef9529809d8..9756f21b809e 100644 --- a/drivers/virtio/virtio_pci_common.c +++ b/drivers/virtio/virtio_pci_common.c @@ -282,6 +282,7 @@ void vp_del_vqs(struct virtio_device *vdev) vp_free_vectors(vdev); kfree(vp_dev->vqs); + vp_dev->vqs = NULL; } static int vp_try_to_find_vqs(struct virtio_device *vdev, unsigned nvqs, @@ -421,15 +422,6 @@ int vp_set_vq_affinity(struct virtqueue *vq, int cpu) return 0; } -void virtio_pci_release_dev(struct device *_d) -{ - /* - * No need for a release method as we allocate/free - * all devices together with the pci devices. - * Provide an empty one to avoid getting a warning from core. - */ -} - #ifdef CONFIG_PM_SLEEP static int virtio_pci_freeze(struct device *dev) { diff --git a/drivers/virtio/virtio_pci_common.h b/drivers/virtio/virtio_pci_common.h index adddb647b21d..5a497289b7e9 100644 --- a/drivers/virtio/virtio_pci_common.h +++ b/drivers/virtio/virtio_pci_common.h @@ -126,7 +126,6 @@ const char *vp_bus_name(struct virtio_device *vdev); * - ignore the affinity request if we're using INTX */ int vp_set_vq_affinity(struct virtqueue *vq, int cpu); -void virtio_pci_release_dev(struct device *); int virtio_pci_legacy_probe(struct pci_dev *pci_dev, const struct pci_device_id *id); diff --git a/drivers/virtio/virtio_pci_legacy.c b/drivers/virtio/virtio_pci_legacy.c index 6c76f0f5658c..a5486e65e04b 100644 --- a/drivers/virtio/virtio_pci_legacy.c +++ b/drivers/virtio/virtio_pci_legacy.c @@ -211,6 +211,17 @@ static const struct virtio_config_ops virtio_pci_config_ops = { .set_vq_affinity = vp_set_vq_affinity, }; +static void virtio_pci_release_dev(struct device *_d) +{ + struct virtio_device *vdev = dev_to_virtio(_d); + struct virtio_pci_device *vp_dev = to_vp_device(vdev); + + /* As struct device is a kobject, it's not safe to + * free the memory (including the reference counter itself) + * until it's release callback. */ + kfree(vp_dev); +} + /* the PCI probing function */ int virtio_pci_legacy_probe(struct pci_dev *pci_dev, const struct pci_device_id *id) @@ -302,5 +313,4 @@ void virtio_pci_legacy_remove(struct pci_dev *pci_dev) pci_iounmap(pci_dev, vp_dev->ioaddr); pci_release_regions(pci_dev); pci_disable_device(pci_dev); - kfree(vp_dev); } diff --git a/fs/btrfs/backref.c b/fs/btrfs/backref.c index 2d3e32ebfd15..8729cf68d2fe 100644 --- a/fs/btrfs/backref.c +++ b/fs/btrfs/backref.c @@ -1552,7 +1552,6 @@ int tree_backref_for_extent(unsigned long *ptr, struct extent_buffer *eb, { int ret; int type; - struct btrfs_tree_block_info *info; struct btrfs_extent_inline_ref *eiref; if (*ptr == (unsigned long)-1) @@ -1573,9 +1572,17 @@ int tree_backref_for_extent(unsigned long *ptr, struct extent_buffer *eb, } /* we can treat both ref types equally here */ - info = (struct btrfs_tree_block_info *)(ei + 1); *out_root = btrfs_extent_inline_ref_offset(eb, eiref); - *out_level = btrfs_tree_block_level(eb, info); + + if (key->type == BTRFS_EXTENT_ITEM_KEY) { + struct btrfs_tree_block_info *info; + + info = (struct btrfs_tree_block_info *)(ei + 1); + *out_level = btrfs_tree_block_level(eb, info); + } else { + ASSERT(key->type == BTRFS_METADATA_ITEM_KEY); + *out_level = (u8)key->offset; + } if (ret == 1) *ptr = (unsigned long)-1; diff --git a/fs/btrfs/delayed-inode.c b/fs/btrfs/delayed-inode.c index 054577bddaf2..de4e70fb3cbb 100644 --- a/fs/btrfs/delayed-inode.c +++ b/fs/btrfs/delayed-inode.c @@ -1857,6 +1857,14 @@ int btrfs_delayed_delete_inode_ref(struct inode *inode) { struct btrfs_delayed_node *delayed_node; + /* + * we don't do delayed inode updates during log recovery because it + * leads to enospc problems. This means we also can't do + * delayed inode refs + */ + if (BTRFS_I(inode)->root->fs_info->log_root_recovering) + return -EAGAIN; + delayed_node = btrfs_get_or_create_delayed_node(inode); if (IS_ERR(delayed_node)) return PTR_ERR(delayed_node); diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c index a80b97100d90..15116585e714 100644 --- a/fs/btrfs/extent-tree.c +++ b/fs/btrfs/extent-tree.c @@ -3139,9 +3139,11 @@ static int write_one_cache_group(struct btrfs_trans_handle *trans, struct extent_buffer *leaf; ret = btrfs_search_slot(trans, extent_root, &cache->key, path, 0, 1); - if (ret < 0) + if (ret) { + if (ret > 0) + ret = -ENOENT; goto fail; - BUG_ON(ret); /* Corruption */ + } leaf = path->nodes[0]; bi = btrfs_item_ptr_offset(leaf, path->slots[0]); @@ -3149,11 +3151,9 @@ static int write_one_cache_group(struct btrfs_trans_handle *trans, btrfs_mark_buffer_dirty(leaf); btrfs_release_path(path); fail: - if (ret) { + if (ret) btrfs_abort_transaction(trans, root, ret); - return ret; - } - return 0; + return ret; } diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c index e687bb0dc73a..8bf326affb94 100644 --- a/fs/btrfs/inode.c +++ b/fs/btrfs/inode.c @@ -6255,8 +6255,10 @@ static int btrfs_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode) out_fail: btrfs_end_transaction(trans, root); - if (drop_on_err) + if (drop_on_err) { + inode_dec_link_count(inode); iput(inode); + } btrfs_balance_delayed_items(root); btrfs_btree_balance_dirty(root); return err; diff --git a/fs/btrfs/scrub.c b/fs/btrfs/scrub.c index f2bb13a23f86..9e1569ffbf6e 100644 --- a/fs/btrfs/scrub.c +++ b/fs/btrfs/scrub.c @@ -2607,9 +2607,9 @@ static int scrub_extent_for_parity(struct scrub_parity *sparity, ret = scrub_pages_for_parity(sparity, logical, l, physical, dev, flags, gen, mirror_num, have_csum ? csum : NULL); -skip: if (ret) return ret; +skip: len -= l; logical += l; physical += l; diff --git a/fs/ext4/extents.c b/fs/ext4/extents.c index e5d3eadf47b1..bed43081720f 100644 --- a/fs/ext4/extents.c +++ b/fs/ext4/extents.c @@ -5166,8 +5166,8 @@ int ext4_fiemap(struct inode *inode, struct fiemap_extent_info *fieinfo, /* fallback to generic here if not in extents fmt */ if (!(ext4_test_inode_flag(inode, EXT4_INODE_EXTENTS))) - return __generic_block_fiemap(inode, fieinfo, start, len, - ext4_get_block); + return generic_block_fiemap(inode, fieinfo, start, len, + ext4_get_block); if (fiemap_check_flags(fieinfo, EXT4_FIEMAP_FLAGS)) return -EBADR; diff --git a/fs/ext4/file.c b/fs/ext4/file.c index 513c12cf444c..8131be8c0af3 100644 --- a/fs/ext4/file.c +++ b/fs/ext4/file.c @@ -273,19 +273,24 @@ static int ext4_file_open(struct inode * inode, struct file * filp) * we determine this extent as a data or a hole according to whether the * page cache has data or not. */ -static int ext4_find_unwritten_pgoff(struct inode *inode, int whence, - loff_t endoff, loff_t *offset) +static int ext4_find_unwritten_pgoff(struct inode *inode, + int whence, + struct ext4_map_blocks *map, + loff_t *offset) { struct pagevec pvec; + unsigned int blkbits; pgoff_t index; pgoff_t end; + loff_t endoff; loff_t startoff; loff_t lastoff; int found = 0; + blkbits = inode->i_sb->s_blocksize_bits; startoff = *offset; lastoff = startoff; - + endoff = (loff_t)(map->m_lblk + map->m_len) << blkbits; index = startoff >> PAGE_CACHE_SHIFT; end = endoff >> PAGE_CACHE_SHIFT; @@ -403,144 +408,147 @@ out: static loff_t ext4_seek_data(struct file *file, loff_t offset, loff_t maxsize) { struct inode *inode = file->f_mapping->host; - struct fiemap_extent_info fie; - struct fiemap_extent ext[2]; - loff_t next; - int i, ret = 0; + struct ext4_map_blocks map; + struct extent_status es; + ext4_lblk_t start, last, end; + loff_t dataoff, isize; + int blkbits; + int ret = 0; mutex_lock(&inode->i_mutex); - if (offset >= inode->i_size) { + + isize = i_size_read(inode); + if (offset >= isize) { mutex_unlock(&inode->i_mutex); return -ENXIO; } - fie.fi_flags = 0; - fie.fi_extents_max = 2; - fie.fi_extents_start = (struct fiemap_extent __user *) &ext; - while (1) { - mm_segment_t old_fs = get_fs(); - - fie.fi_extents_mapped = 0; - memset(ext, 0, sizeof(*ext) * fie.fi_extents_max); - - set_fs(get_ds()); - ret = ext4_fiemap(inode, &fie, offset, maxsize - offset); - set_fs(old_fs); - if (ret) + + blkbits = inode->i_sb->s_blocksize_bits; + start = offset >> blkbits; + last = start; + end = isize >> blkbits; + dataoff = offset; + + do { + map.m_lblk = last; + map.m_len = end - last + 1; + ret = ext4_map_blocks(NULL, inode, &map, 0); + if (ret > 0 && !(map.m_flags & EXT4_MAP_UNWRITTEN)) { + if (last != start) + dataoff = (loff_t)last << blkbits; break; + } - /* No extents found, EOF */ - if (!fie.fi_extents_mapped) { - ret = -ENXIO; + /* + * If there is a delay extent at this offset, + * it will be as a data. + */ + ext4_es_find_delayed_extent_range(inode, last, last, &es); + if (es.es_len != 0 && in_range(last, es.es_lblk, es.es_len)) { + if (last != start) + dataoff = (loff_t)last << blkbits; break; } - for (i = 0; i < fie.fi_extents_mapped; i++) { - next = (loff_t)(ext[i].fe_length + ext[i].fe_logical); - if (offset < (loff_t)ext[i].fe_logical) - offset = (loff_t)ext[i].fe_logical; - /* - * If extent is not unwritten, then it contains valid - * data, mapped or delayed. - */ - if (!(ext[i].fe_flags & FIEMAP_EXTENT_UNWRITTEN)) - goto out; + /* + * If there is a unwritten extent at this offset, + * it will be as a data or a hole according to page + * cache that has data or not. + */ + if (map.m_flags & EXT4_MAP_UNWRITTEN) { + int unwritten; + unwritten = ext4_find_unwritten_pgoff(inode, SEEK_DATA, + &map, &dataoff); + if (unwritten) + break; + } - /* - * If there is a unwritten extent at this offset, - * it will be as a data or a hole according to page - * cache that has data or not. - */ - if (ext4_find_unwritten_pgoff(inode, SEEK_DATA, - next, &offset)) - goto out; + last++; + dataoff = (loff_t)last << blkbits; + } while (last <= end); - if (ext[i].fe_flags & FIEMAP_EXTENT_LAST) { - ret = -ENXIO; - goto out; - } - offset = next; - } - } - if (offset > inode->i_size) - offset = inode->i_size; -out: mutex_unlock(&inode->i_mutex); - if (ret) - return ret; - return vfs_setpos(file, offset, maxsize); + if (dataoff > isize) + return -ENXIO; + + return vfs_setpos(file, dataoff, maxsize); } /* - * ext4_seek_hole() retrieves the offset for SEEK_HOLE + * ext4_seek_hole() retrieves the offset for SEEK_HOLE. */ static loff_t ext4_seek_hole(struct file *file, loff_t offset, loff_t maxsize) { struct inode *inode = file->f_mapping->host; - struct fiemap_extent_info fie; - struct fiemap_extent ext[2]; - loff_t next; - int i, ret = 0; + struct ext4_map_blocks map; + struct extent_status es; + ext4_lblk_t start, last, end; + loff_t holeoff, isize; + int blkbits; + int ret = 0; mutex_lock(&inode->i_mutex); - if (offset >= inode->i_size) { + + isize = i_size_read(inode); + if (offset >= isize) { mutex_unlock(&inode->i_mutex); return -ENXIO; } - fie.fi_flags = 0; - fie.fi_extents_max = 2; - fie.fi_extents_start = (struct fiemap_extent __user *)&ext; - while (1) { - mm_segment_t old_fs = get_fs(); - - fie.fi_extents_mapped = 0; - memset(ext, 0, sizeof(*ext)); + blkbits = inode->i_sb->s_blocksize_bits; + start = offset >> blkbits; + last = start; + end = isize >> blkbits; + holeoff = offset; - set_fs(get_ds()); - ret = ext4_fiemap(inode, &fie, offset, maxsize - offset); - set_fs(old_fs); - if (ret) - break; + do { + map.m_lblk = last; + map.m_len = end - last + 1; + ret = ext4_map_blocks(NULL, inode, &map, 0); + if (ret > 0 && !(map.m_flags & EXT4_MAP_UNWRITTEN)) { + last += ret; + holeoff = (loff_t)last << blkbits; + continue; + } - /* No extents found */ - if (!fie.fi_extents_mapped) - break; + /* + * If there is a delay extent at this offset, + * we will skip this extent. + */ + ext4_es_find_delayed_extent_range(inode, last, last, &es); + if (es.es_len != 0 && in_range(last, es.es_lblk, es.es_len)) { + last = es.es_lblk + es.es_len; + holeoff = (loff_t)last << blkbits; + continue; + } - for (i = 0; i < fie.fi_extents_mapped; i++) { - next = (loff_t)(ext[i].fe_logical + ext[i].fe_length); - /* - * If extent is not unwritten, then it contains valid - * data, mapped or delayed. - */ - if (!(ext[i].fe_flags & FIEMAP_EXTENT_UNWRITTEN)) { - if (offset < (loff_t)ext[i].fe_logical) - goto out; - offset = next; + /* + * If there is a unwritten extent at this offset, + * it will be as a data or a hole according to page + * cache that has data or not. + */ + if (map.m_flags & EXT4_MAP_UNWRITTEN) { + int unwritten; + unwritten = ext4_find_unwritten_pgoff(inode, SEEK_HOLE, + &map, &holeoff); + if (!unwritten) { + last += ret; + holeoff = (loff_t)last << blkbits; continue; } - /* - * If there is a unwritten extent at this offset, - * it will be as a data or a hole according to page - * cache that has data or not. - */ - if (ext4_find_unwritten_pgoff(inode, SEEK_HOLE, - next, &offset)) - goto out; - - offset = next; - if (ext[i].fe_flags & FIEMAP_EXTENT_LAST) - goto out; } - } - if (offset > inode->i_size) - offset = inode->i_size; -out: + + /* find a hole */ + break; + } while (last <= end); + mutex_unlock(&inode->i_mutex); - if (ret) - return ret; - return vfs_setpos(file, offset, maxsize); + if (holeoff > isize) + holeoff = isize; + + return vfs_setpos(file, holeoff, maxsize); } /* diff --git a/fs/ext4/resize.c b/fs/ext4/resize.c index bf76f405a5f9..8a8ec6293b19 100644 --- a/fs/ext4/resize.c +++ b/fs/ext4/resize.c @@ -24,6 +24,18 @@ int ext4_resize_begin(struct super_block *sb) return -EPERM; /* + * If we are not using the primary superblock/GDT copy don't resize, + * because the user tools have no way of handling this. Probably a + * bad time to do it anyways. + */ + if (EXT4_SB(sb)->s_sbh->b_blocknr != + le32_to_cpu(EXT4_SB(sb)->s_es->s_first_data_block)) { + ext4_warning(sb, "won't resize using backup superblock at %llu", + (unsigned long long)EXT4_SB(sb)->s_sbh->b_blocknr); + return -EPERM; + } + + /* * We are not allowed to do online-resizing on a filesystem mounted * with error, because it can destroy the filesystem easily. */ @@ -758,18 +770,6 @@ static int add_new_gdb(handle_t *handle, struct inode *inode, "EXT4-fs: ext4_add_new_gdb: adding group block %lu\n", gdb_num); - /* - * If we are not using the primary superblock/GDT copy don't resize, - * because the user tools have no way of handling this. Probably a - * bad time to do it anyways. - */ - if (EXT4_SB(sb)->s_sbh->b_blocknr != - le32_to_cpu(EXT4_SB(sb)->s_es->s_first_data_block)) { - ext4_warning(sb, "won't resize using backup superblock at %llu", - (unsigned long long)EXT4_SB(sb)->s_sbh->b_blocknr); - return -EPERM; - } - gdb_bh = sb_bread(sb, gdblock); if (!gdb_bh) return -EIO; diff --git a/fs/ext4/super.c b/fs/ext4/super.c index 43c92b1685cb..74c5f53595fb 100644 --- a/fs/ext4/super.c +++ b/fs/ext4/super.c @@ -3482,7 +3482,7 @@ static int ext4_fill_super(struct super_block *sb, void *data, int silent) if (EXT4_HAS_RO_COMPAT_FEATURE(sb, EXT4_FEATURE_RO_COMPAT_METADATA_CSUM) && EXT4_HAS_RO_COMPAT_FEATURE(sb, EXT4_FEATURE_RO_COMPAT_GDT_CSUM)) - ext4_warning(sb, KERN_INFO "metadata_csum and uninit_bg are " + ext4_warning(sb, "metadata_csum and uninit_bg are " "redundant flags; please run fsck."); /* Check for a known checksum algorithm */ diff --git a/fs/fcntl.c b/fs/fcntl.c index 99d440a4a6ba..ee85cd4e136a 100644 --- a/fs/fcntl.c +++ b/fs/fcntl.c @@ -740,14 +740,15 @@ static int __init fcntl_init(void) * Exceptions: O_NONBLOCK is a two bit define on parisc; O_NDELAY * is defined as O_NONBLOCK on some platforms and not on others. */ - BUILD_BUG_ON(20 - 1 /* for O_RDONLY being 0 */ != HWEIGHT32( + BUILD_BUG_ON(21 - 1 /* for O_RDONLY being 0 */ != HWEIGHT32( O_RDONLY | O_WRONLY | O_RDWR | O_CREAT | O_EXCL | O_NOCTTY | O_TRUNC | O_APPEND | /* O_NONBLOCK | */ __O_SYNC | O_DSYNC | FASYNC | O_DIRECT | O_LARGEFILE | O_DIRECTORY | O_NOFOLLOW | O_NOATIME | O_CLOEXEC | - __FMODE_EXEC | O_PATH | __O_TMPFILE + __FMODE_EXEC | O_PATH | __O_TMPFILE | + __FMODE_NONOTIFY )); fasync_cache = kmem_cache_create("fasync_cache", diff --git a/fs/ocfs2/dlm/dlmrecovery.c b/fs/ocfs2/dlm/dlmrecovery.c index 79b5af5e6a7b..cecd875653e4 100644 --- a/fs/ocfs2/dlm/dlmrecovery.c +++ b/fs/ocfs2/dlm/dlmrecovery.c @@ -2023,11 +2023,8 @@ leave: dlm_lockres_drop_inflight_ref(dlm, res); spin_unlock(&res->spinlock); - if (ret < 0) { + if (ret < 0) mlog_errno(ret); - if (newlock) - dlm_lock_put(newlock); - } return ret; } diff --git a/fs/ocfs2/namei.c b/fs/ocfs2/namei.c index b931e04e3388..914c121ec890 100644 --- a/fs/ocfs2/namei.c +++ b/fs/ocfs2/namei.c @@ -94,6 +94,14 @@ static int ocfs2_create_symlink_data(struct ocfs2_super *osb, struct inode *inode, const char *symname); +static int ocfs2_double_lock(struct ocfs2_super *osb, + struct buffer_head **bh1, + struct inode *inode1, + struct buffer_head **bh2, + struct inode *inode2, + int rename); + +static void ocfs2_double_unlock(struct inode *inode1, struct inode *inode2); /* An orphan dir name is an 8 byte value, printed as a hex string */ #define OCFS2_ORPHAN_NAMELEN ((int)(2 * sizeof(u64))) @@ -678,8 +686,10 @@ static int ocfs2_link(struct dentry *old_dentry, { handle_t *handle; struct inode *inode = old_dentry->d_inode; + struct inode *old_dir = old_dentry->d_parent->d_inode; int err; struct buffer_head *fe_bh = NULL; + struct buffer_head *old_dir_bh = NULL; struct buffer_head *parent_fe_bh = NULL; struct ocfs2_dinode *fe = NULL; struct ocfs2_super *osb = OCFS2_SB(dir->i_sb); @@ -696,19 +706,33 @@ static int ocfs2_link(struct dentry *old_dentry, dquot_initialize(dir); - err = ocfs2_inode_lock_nested(dir, &parent_fe_bh, 1, OI_LS_PARENT); + err = ocfs2_double_lock(osb, &old_dir_bh, old_dir, + &parent_fe_bh, dir, 0); if (err < 0) { if (err != -ENOENT) mlog_errno(err); return err; } + /* make sure both dirs have bhs + * get an extra ref on old_dir_bh if old==new */ + if (!parent_fe_bh) { + if (old_dir_bh) { + parent_fe_bh = old_dir_bh; + get_bh(parent_fe_bh); + } else { + mlog(ML_ERROR, "%s: no old_dir_bh!\n", osb->uuid_str); + err = -EIO; + goto out; + } + } + if (!dir->i_nlink) { err = -ENOENT; goto out; } - err = ocfs2_lookup_ino_from_name(dir, old_dentry->d_name.name, + err = ocfs2_lookup_ino_from_name(old_dir, old_dentry->d_name.name, old_dentry->d_name.len, &old_de_ino); if (err) { err = -ENOENT; @@ -801,10 +825,11 @@ out_unlock_inode: ocfs2_inode_unlock(inode, 1); out: - ocfs2_inode_unlock(dir, 1); + ocfs2_double_unlock(old_dir, dir); brelse(fe_bh); brelse(parent_fe_bh); + brelse(old_dir_bh); ocfs2_free_dir_lookup_result(&lookup); @@ -1072,14 +1097,15 @@ static int ocfs2_check_if_ancestor(struct ocfs2_super *osb, } /* - * The only place this should be used is rename! + * The only place this should be used is rename and link! * if they have the same id, then the 1st one is the only one locked. */ static int ocfs2_double_lock(struct ocfs2_super *osb, struct buffer_head **bh1, struct inode *inode1, struct buffer_head **bh2, - struct inode *inode2) + struct inode *inode2, + int rename) { int status; int inode1_is_ancestor, inode2_is_ancestor; @@ -1127,7 +1153,7 @@ static int ocfs2_double_lock(struct ocfs2_super *osb, } /* lock id2 */ status = ocfs2_inode_lock_nested(inode2, bh2, 1, - OI_LS_RENAME1); + rename == 1 ? OI_LS_RENAME1 : OI_LS_PARENT); if (status < 0) { if (status != -ENOENT) mlog_errno(status); @@ -1136,7 +1162,8 @@ static int ocfs2_double_lock(struct ocfs2_super *osb, } /* lock id1 */ - status = ocfs2_inode_lock_nested(inode1, bh1, 1, OI_LS_RENAME2); + status = ocfs2_inode_lock_nested(inode1, bh1, 1, + rename == 1 ? OI_LS_RENAME2 : OI_LS_PARENT); if (status < 0) { /* * An error return must mean that no cluster locks @@ -1252,7 +1279,7 @@ static int ocfs2_rename(struct inode *old_dir, /* if old and new are the same, this'll just do one lock. */ status = ocfs2_double_lock(osb, &old_dir_bh, old_dir, - &new_dir_bh, new_dir); + &new_dir_bh, new_dir, 1); if (status < 0) { mlog_errno(status); goto bail; diff --git a/include/acpi/processor.h b/include/acpi/processor.h index 3ca9b751f122..b95dc32a6e6b 100644 --- a/include/acpi/processor.h +++ b/include/acpi/processor.h @@ -196,8 +196,8 @@ struct acpi_processor_flags { struct acpi_processor { acpi_handle handle; u32 acpi_id; - u32 apic_id; - u32 id; + u32 phys_id; /* CPU hardware ID such as APIC ID for x86 */ + u32 id; /* CPU logical ID allocated by OS */ u32 pblk; int performance_platform_limit; int throttling_platform_limit; @@ -310,8 +310,8 @@ static inline int acpi_processor_get_bios_limit(int cpu, unsigned int *limit) #endif /* CONFIG_CPU_FREQ */ /* in processor_core.c */ -int acpi_get_apicid(acpi_handle, int type, u32 acpi_id); -int acpi_map_cpuid(int apic_id, u32 acpi_id); +int acpi_get_phys_id(acpi_handle, int type, u32 acpi_id); +int acpi_map_cpuid(int phys_id, u32 acpi_id); int acpi_get_cpuid(acpi_handle, int type, u32 acpi_id); /* in processor_pdc.c */ diff --git a/include/linux/acpi.h b/include/linux/acpi.h index 856d381b1d5b..d459cd17b477 100644 --- a/include/linux/acpi.h +++ b/include/linux/acpi.h @@ -147,8 +147,8 @@ void acpi_numa_arch_fixup(void); #ifdef CONFIG_ACPI_HOTPLUG_CPU /* Arch dependent functions for cpu hotplug support */ -int acpi_map_lsapic(acpi_handle handle, int physid, int *pcpu); -int acpi_unmap_lsapic(int cpu); +int acpi_map_cpu(acpi_handle handle, int physid, int *pcpu); +int acpi_unmap_cpu(int cpu); #endif /* CONFIG_ACPI_HOTPLUG_CPU */ int acpi_register_ioapic(acpi_handle handle, u64 phys_addr, u32 gsi_base); diff --git a/include/linux/fs.h b/include/linux/fs.h index f90c0282c114..42efe13077b6 100644 --- a/include/linux/fs.h +++ b/include/linux/fs.h @@ -135,7 +135,7 @@ typedef void (dio_iodone_t)(struct kiocb *iocb, loff_t offset, #define FMODE_CAN_WRITE ((__force fmode_t)0x40000) /* File was opened by fanotify and shouldn't generate fanotify events */ -#define FMODE_NONOTIFY ((__force fmode_t)0x1000000) +#define FMODE_NONOTIFY ((__force fmode_t)0x4000000) /* * Flag for rw_copy_check_uvector and compat_rw_copy_check_uvector diff --git a/include/linux/mm.h b/include/linux/mm.h index f80d0194c9bc..80fc92a49649 100644 --- a/include/linux/mm.h +++ b/include/linux/mm.h @@ -1952,7 +1952,7 @@ extern int expand_downwards(struct vm_area_struct *vma, #if VM_GROWSUP extern int expand_upwards(struct vm_area_struct *vma, unsigned long address); #else - #define expand_upwards(vma, address) do { } while (0) + #define expand_upwards(vma, address) (0) #endif /* Look up the first VMA which satisfies addr < vm_end, NULL if none. */ diff --git a/include/linux/rmap.h b/include/linux/rmap.h index c0c2bce6b0b7..d9d7e7e56352 100644 --- a/include/linux/rmap.h +++ b/include/linux/rmap.h @@ -37,6 +37,16 @@ struct anon_vma { atomic_t refcount; /* + * Count of child anon_vmas and VMAs which points to this anon_vma. + * + * This counter is used for making decision about reusing anon_vma + * instead of forking new one. See comments in function anon_vma_clone. + */ + unsigned degree; + + struct anon_vma *parent; /* Parent of this anon_vma */ + + /* * NOTE: the LSB of the rb_root.rb_node is set by * mm_take_all_locks() _after_ taking the above lock. So the * rb_root must only be read/written after taking the above lock diff --git a/include/linux/writeback.h b/include/linux/writeback.h index a219be961c0a..00048339c23e 100644 --- a/include/linux/writeback.h +++ b/include/linux/writeback.h @@ -177,7 +177,6 @@ int write_cache_pages(struct address_space *mapping, struct writeback_control *wbc, writepage_t writepage, void *data); int do_writepages(struct address_space *mapping, struct writeback_control *wbc); -void set_page_dirty_balance(struct page *page); void writeback_set_ratelimit(void); void tag_pages_for_writeback(struct address_space *mapping, pgoff_t start, pgoff_t end); diff --git a/include/net/mac80211.h b/include/net/mac80211.h index 58d719ddaa60..29c7be8808d5 100644 --- a/include/net/mac80211.h +++ b/include/net/mac80211.h @@ -1270,8 +1270,7 @@ struct ieee80211_vif *wdev_to_ieee80211_vif(struct wireless_dev *wdev); * * @IEEE80211_KEY_FLAG_GENERATE_IV: This flag should be set by the * driver to indicate that it requires IV generation for this - * particular key. Setting this flag does not necessarily mean that SKBs - * will have sufficient tailroom for ICV or MIC. + * particular key. * @IEEE80211_KEY_FLAG_GENERATE_MMIC: This flag should be set by * the driver for a TKIP key if it requires Michael MIC * generation in software. @@ -1283,9 +1282,7 @@ struct ieee80211_vif *wdev_to_ieee80211_vif(struct wireless_dev *wdev); * @IEEE80211_KEY_FLAG_PUT_IV_SPACE: This flag should be set by the driver * if space should be prepared for the IV, but the IV * itself should not be generated. Do not set together with - * @IEEE80211_KEY_FLAG_GENERATE_IV on the same key. Setting this flag does - * not necessarily mean that SKBs will have sufficient tailroom for ICV or - * MIC. + * @IEEE80211_KEY_FLAG_GENERATE_IV on the same key. * @IEEE80211_KEY_FLAG_RX_MGMT: This key will be used to decrypt received * management frames. The flag can help drivers that have a hardware * crypto implementation that doesn't deal with management frames diff --git a/include/uapi/asm-generic/fcntl.h b/include/uapi/asm-generic/fcntl.h index 7543b3e51331..e063effe0cc1 100644 --- a/include/uapi/asm-generic/fcntl.h +++ b/include/uapi/asm-generic/fcntl.h @@ -5,7 +5,7 @@ /* * FMODE_EXEC is 0x20 - * FMODE_NONOTIFY is 0x1000000 + * FMODE_NONOTIFY is 0x4000000 * These cannot be used by userspace O_* until internal and external open * flags are split. * -Eric Paris diff --git a/kernel/exit.c b/kernel/exit.c index 1ea4369890a3..6806c55475ee 100644 --- a/kernel/exit.c +++ b/kernel/exit.c @@ -1287,9 +1287,15 @@ static int wait_task_continued(struct wait_opts *wo, struct task_struct *p) static int wait_consider_task(struct wait_opts *wo, int ptrace, struct task_struct *p) { + /* + * We can race with wait_task_zombie() from another thread. + * Ensure that EXIT_ZOMBIE -> EXIT_DEAD/EXIT_TRACE transition + * can't confuse the checks below. + */ + int exit_state = ACCESS_ONCE(p->exit_state); int ret; - if (unlikely(p->exit_state == EXIT_DEAD)) + if (unlikely(exit_state == EXIT_DEAD)) return 0; ret = eligible_child(wo, p); @@ -1310,7 +1316,7 @@ static int wait_consider_task(struct wait_opts *wo, int ptrace, return 0; } - if (unlikely(p->exit_state == EXIT_TRACE)) { + if (unlikely(exit_state == EXIT_TRACE)) { /* * ptrace == 0 means we are the natural parent. In this case * we should clear notask_error, debugger will notify us. @@ -1337,7 +1343,7 @@ static int wait_consider_task(struct wait_opts *wo, int ptrace, } /* slay zombie? */ - if (p->exit_state == EXIT_ZOMBIE) { + if (exit_state == EXIT_ZOMBIE) { /* we don't reap group leaders with subthreads */ if (!delay_group_leader(p)) { /* diff --git a/lib/assoc_array.c b/lib/assoc_array.c index 2404d03e251a..03dd576e6773 100644 --- a/lib/assoc_array.c +++ b/lib/assoc_array.c @@ -11,6 +11,7 @@ * 2 of the Licence, or (at your option) any later version. */ //#define DEBUG +#include <linux/rcupdate.h> #include <linux/slab.h> #include <linux/err.h> #include <linux/assoc_array_priv.h> diff --git a/mm/Kconfig.debug b/mm/Kconfig.debug index 56badfc4810a..957d3da53ddd 100644 --- a/mm/Kconfig.debug +++ b/mm/Kconfig.debug @@ -14,7 +14,6 @@ config DEBUG_PAGEALLOC depends on !KMEMCHECK select PAGE_EXTENSION select PAGE_POISONING if !ARCH_SUPPORTS_DEBUG_PAGEALLOC - select PAGE_GUARD if ARCH_SUPPORTS_DEBUG_PAGEALLOC ---help--- Unmap pages from the kernel linear mapping after free_pages(). This results in a large slowdown, but helps to find certain types @@ -27,13 +26,5 @@ config DEBUG_PAGEALLOC that would result in incorrect warnings of memory corruption after a resume because free pages are not saved to the suspend image. -config WANT_PAGE_DEBUG_FLAGS - bool - config PAGE_POISONING bool - select WANT_PAGE_DEBUG_FLAGS - -config PAGE_GUARD - bool - select WANT_PAGE_DEBUG_FLAGS diff --git a/mm/memcontrol.c b/mm/memcontrol.c index ef91e856c7e4..851924fa5170 100644 --- a/mm/memcontrol.c +++ b/mm/memcontrol.c @@ -3043,18 +3043,6 @@ static int mem_cgroup_move_swap_account(swp_entry_t entry, if (swap_cgroup_cmpxchg(entry, old_id, new_id) == old_id) { mem_cgroup_swap_statistics(from, false); mem_cgroup_swap_statistics(to, true); - /* - * This function is only called from task migration context now. - * It postpones page_counter and refcount handling till the end - * of task migration(mem_cgroup_clear_mc()) for performance - * improvement. But we cannot postpone css_get(to) because if - * the process that has been moved to @to does swap-in, the - * refcount of @to might be decreased to 0. - * - * We are in attach() phase, so the cgroup is guaranteed to be - * alive, so we can just call css_get(). - */ - css_get(&to->css); return 0; } return -EINVAL; @@ -4679,6 +4667,7 @@ mem_cgroup_css_alloc(struct cgroup_subsys_state *parent_css) if (parent_css == NULL) { root_mem_cgroup = memcg; page_counter_init(&memcg->memory, NULL); + memcg->soft_limit = PAGE_COUNTER_MAX; page_counter_init(&memcg->memsw, NULL); page_counter_init(&memcg->kmem, NULL); } @@ -4724,6 +4713,7 @@ mem_cgroup_css_online(struct cgroup_subsys_state *css) if (parent->use_hierarchy) { page_counter_init(&memcg->memory, &parent->memory); + memcg->soft_limit = PAGE_COUNTER_MAX; page_counter_init(&memcg->memsw, &parent->memsw); page_counter_init(&memcg->kmem, &parent->kmem); @@ -4733,6 +4723,7 @@ mem_cgroup_css_online(struct cgroup_subsys_state *css) */ } else { page_counter_init(&memcg->memory, NULL); + memcg->soft_limit = PAGE_COUNTER_MAX; page_counter_init(&memcg->memsw, NULL); page_counter_init(&memcg->kmem, NULL); /* @@ -4807,7 +4798,7 @@ static void mem_cgroup_css_reset(struct cgroup_subsys_state *css) mem_cgroup_resize_limit(memcg, PAGE_COUNTER_MAX); mem_cgroup_resize_memsw_limit(memcg, PAGE_COUNTER_MAX); memcg_update_kmem_limit(memcg, PAGE_COUNTER_MAX); - memcg->soft_limit = 0; + memcg->soft_limit = PAGE_COUNTER_MAX; } #ifdef CONFIG_MMU diff --git a/mm/memory.c b/mm/memory.c index ca920d1fd314..c6565f00fb38 100644 --- a/mm/memory.c +++ b/mm/memory.c @@ -2137,17 +2137,24 @@ reuse: if (!dirty_page) return ret; - /* - * Yes, Virginia, this is actually required to prevent a race - * with clear_page_dirty_for_io() from clearing the page dirty - * bit after it clear all dirty ptes, but before a racing - * do_wp_page installs a dirty pte. - * - * do_shared_fault is protected similarly. - */ if (!page_mkwrite) { - wait_on_page_locked(dirty_page); - set_page_dirty_balance(dirty_page); + struct address_space *mapping; + int dirtied; + + lock_page(dirty_page); + dirtied = set_page_dirty(dirty_page); + VM_BUG_ON_PAGE(PageAnon(dirty_page), dirty_page); + mapping = dirty_page->mapping; + unlock_page(dirty_page); + + if (dirtied && mapping) { + /* + * Some device drivers do not set page.mapping + * but still dirty their pages + */ + balance_dirty_pages_ratelimited(mapping); + } + /* file_update_time outside page_lock */ if (vma->vm_file) file_update_time(vma->vm_file); @@ -2593,7 +2600,7 @@ static inline int check_stack_guard_page(struct vm_area_struct *vma, unsigned lo if (prev && prev->vm_end == address) return prev->vm_flags & VM_GROWSDOWN ? 0 : -ENOMEM; - expand_downwards(vma, address - PAGE_SIZE); + return expand_downwards(vma, address - PAGE_SIZE); } if ((vma->vm_flags & VM_GROWSUP) && address + PAGE_SIZE == vma->vm_end) { struct vm_area_struct *next = vma->vm_next; @@ -2602,7 +2609,7 @@ static inline int check_stack_guard_page(struct vm_area_struct *vma, unsigned lo if (next && next->vm_start == address + PAGE_SIZE) return next->vm_flags & VM_GROWSUP ? 0 : -ENOMEM; - expand_upwards(vma, address + PAGE_SIZE); + return expand_upwards(vma, address + PAGE_SIZE); } return 0; } diff --git a/mm/page-writeback.c b/mm/page-writeback.c index d5d81f5384d1..6f4335238e33 100644 --- a/mm/page-writeback.c +++ b/mm/page-writeback.c @@ -1541,16 +1541,6 @@ pause: bdi_start_background_writeback(bdi); } -void set_page_dirty_balance(struct page *page) -{ - if (set_page_dirty(page)) { - struct address_space *mapping = page_mapping(page); - - if (mapping) - balance_dirty_pages_ratelimited(mapping); - } -} - static DEFINE_PER_CPU(int, bdp_ratelimits); /* @@ -2123,32 +2113,25 @@ EXPORT_SYMBOL(account_page_dirtied); * page dirty in that case, but not all the buffers. This is a "bottom-up" * dirtying, whereas __set_page_dirty_buffers() is a "top-down" dirtying. * - * Most callers have locked the page, which pins the address_space in memory. - * But zap_pte_range() does not lock the page, however in that case the - * mapping is pinned by the vma's ->vm_file reference. - * - * We take care to handle the case where the page was truncated from the - * mapping by re-checking page_mapping() inside tree_lock. + * The caller must ensure this doesn't race with truncation. Most will simply + * hold the page lock, but e.g. zap_pte_range() calls with the page mapped and + * the pte lock held, which also locks out truncation. */ int __set_page_dirty_nobuffers(struct page *page) { if (!TestSetPageDirty(page)) { struct address_space *mapping = page_mapping(page); - struct address_space *mapping2; unsigned long flags; if (!mapping) return 1; spin_lock_irqsave(&mapping->tree_lock, flags); - mapping2 = page_mapping(page); - if (mapping2) { /* Race with truncate? */ - BUG_ON(mapping2 != mapping); - WARN_ON_ONCE(!PagePrivate(page) && !PageUptodate(page)); - account_page_dirtied(page, mapping); - radix_tree_tag_set(&mapping->page_tree, - page_index(page), PAGECACHE_TAG_DIRTY); - } + BUG_ON(page_mapping(page) != mapping); + WARN_ON_ONCE(!PagePrivate(page) && !PageUptodate(page)); + account_page_dirtied(page, mapping); + radix_tree_tag_set(&mapping->page_tree, page_index(page), + PAGECACHE_TAG_DIRTY); spin_unlock_irqrestore(&mapping->tree_lock, flags); if (mapping->host) { /* !PageAnon && !swapper_space */ @@ -2305,12 +2288,10 @@ int clear_page_dirty_for_io(struct page *page) /* * We carefully synchronise fault handlers against * installing a dirty pte and marking the page dirty - * at this point. We do this by having them hold the - * page lock at some point after installing their - * pte, but before marking the page dirty. - * Pages are always locked coming in here, so we get - * the desired exclusion. See mm/memory.c:do_wp_page() - * for more comments. + * at this point. We do this by having them hold the + * page lock while dirtying the page, and pages are + * always locked coming in here, so we get the desired + * exclusion. */ if (TestClearPageDirty(page)) { dec_zone_page_state(page, NR_FILE_DIRTY); diff --git a/mm/rmap.c b/mm/rmap.c index c5bc241127b2..71cd5bd0c17d 100644 --- a/mm/rmap.c +++ b/mm/rmap.c @@ -72,6 +72,8 @@ static inline struct anon_vma *anon_vma_alloc(void) anon_vma = kmem_cache_alloc(anon_vma_cachep, GFP_KERNEL); if (anon_vma) { atomic_set(&anon_vma->refcount, 1); + anon_vma->degree = 1; /* Reference for first vma */ + anon_vma->parent = anon_vma; /* * Initialise the anon_vma root to point to itself. If called * from fork, the root will be reset to the parents anon_vma. @@ -188,6 +190,8 @@ int anon_vma_prepare(struct vm_area_struct *vma) if (likely(!vma->anon_vma)) { vma->anon_vma = anon_vma; anon_vma_chain_link(vma, avc, anon_vma); + /* vma reference or self-parent link for new root */ + anon_vma->degree++; allocated = NULL; avc = NULL; } @@ -236,6 +240,14 @@ static inline void unlock_anon_vma_root(struct anon_vma *root) /* * Attach the anon_vmas from src to dst. * Returns 0 on success, -ENOMEM on failure. + * + * If dst->anon_vma is NULL this function tries to find and reuse existing + * anon_vma which has no vmas and only one child anon_vma. This prevents + * degradation of anon_vma hierarchy to endless linear chain in case of + * constantly forking task. On the other hand, an anon_vma with more than one + * child isn't reused even if there was no alive vma, thus rmap walker has a + * good chance of avoiding scanning the whole hierarchy when it searches where + * page is mapped. */ int anon_vma_clone(struct vm_area_struct *dst, struct vm_area_struct *src) { @@ -256,7 +268,21 @@ int anon_vma_clone(struct vm_area_struct *dst, struct vm_area_struct *src) anon_vma = pavc->anon_vma; root = lock_anon_vma_root(root, anon_vma); anon_vma_chain_link(dst, avc, anon_vma); + + /* + * Reuse existing anon_vma if its degree lower than two, + * that means it has no vma and only one anon_vma child. + * + * Do not chose parent anon_vma, otherwise first child + * will always reuse it. Root anon_vma is never reused: + * it has self-parent reference and at least one child. + */ + if (!dst->anon_vma && anon_vma != src->anon_vma && + anon_vma->degree < 2) + dst->anon_vma = anon_vma; } + if (dst->anon_vma) + dst->anon_vma->degree++; unlock_anon_vma_root(root); return 0; @@ -280,6 +306,9 @@ int anon_vma_fork(struct vm_area_struct *vma, struct vm_area_struct *pvma) if (!pvma->anon_vma) return 0; + /* Drop inherited anon_vma, we'll reuse existing or allocate new. */ + vma->anon_vma = NULL; + /* * First, attach the new VMA to the parent VMA's anon_vmas, * so rmap can find non-COWed pages in child processes. @@ -288,6 +317,10 @@ int anon_vma_fork(struct vm_area_struct *vma, struct vm_area_struct *pvma) if (error) return error; + /* An existing anon_vma has been reused, all done then. */ + if (vma->anon_vma) + return 0; + /* Then add our own anon_vma. */ anon_vma = anon_vma_alloc(); if (!anon_vma) @@ -301,6 +334,7 @@ int anon_vma_fork(struct vm_area_struct *vma, struct vm_area_struct *pvma) * lock any of the anon_vmas in this anon_vma tree. */ anon_vma->root = pvma->anon_vma->root; + anon_vma->parent = pvma->anon_vma; /* * With refcounts, an anon_vma can stay around longer than the * process it belongs to. The root anon_vma needs to be pinned until @@ -311,6 +345,7 @@ int anon_vma_fork(struct vm_area_struct *vma, struct vm_area_struct *pvma) vma->anon_vma = anon_vma; anon_vma_lock_write(anon_vma); anon_vma_chain_link(vma, avc, anon_vma); + anon_vma->parent->degree++; anon_vma_unlock_write(anon_vma); return 0; @@ -341,12 +376,16 @@ void unlink_anon_vmas(struct vm_area_struct *vma) * Leave empty anon_vmas on the list - we'll need * to free them outside the lock. */ - if (RB_EMPTY_ROOT(&anon_vma->rb_root)) + if (RB_EMPTY_ROOT(&anon_vma->rb_root)) { + anon_vma->parent->degree--; continue; + } list_del(&avc->same_vma); anon_vma_chain_free(avc); } + if (vma->anon_vma) + vma->anon_vma->degree--; unlock_anon_vma_root(root); /* @@ -357,6 +396,7 @@ void unlink_anon_vmas(struct vm_area_struct *vma) list_for_each_entry_safe(avc, next, &vma->anon_vma_chain, same_vma) { struct anon_vma *anon_vma = avc->anon_vma; + BUG_ON(anon_vma->degree); put_anon_vma(anon_vma); list_del(&avc->same_vma); diff --git a/mm/vmscan.c b/mm/vmscan.c index bd9a72bc4a1b..ab2505c3ef54 100644 --- a/mm/vmscan.c +++ b/mm/vmscan.c @@ -2921,18 +2921,20 @@ static bool prepare_kswapd_sleep(pg_data_t *pgdat, int order, long remaining, return false; /* - * There is a potential race between when kswapd checks its watermarks - * and a process gets throttled. There is also a potential race if - * processes get throttled, kswapd wakes, a large process exits therby - * balancing the zones that causes kswapd to miss a wakeup. If kswapd - * is going to sleep, no process should be sleeping on pfmemalloc_wait - * so wake them now if necessary. If necessary, processes will wake - * kswapd and get throttled again + * The throttled processes are normally woken up in balance_pgdat() as + * soon as pfmemalloc_watermark_ok() is true. But there is a potential + * race between when kswapd checks the watermarks and a process gets + * throttled. There is also a potential race if processes get + * throttled, kswapd wakes, a large process exits thereby balancing the + * zones, which causes kswapd to exit balance_pgdat() before reaching + * the wake up checks. If kswapd is going to sleep, no process should + * be sleeping on pfmemalloc_wait, so wake them now if necessary. If + * the wake up is premature, processes will wake kswapd and get + * throttled again. The difference from wake ups in balance_pgdat() is + * that here we are under prepare_to_wait(). */ - if (waitqueue_active(&pgdat->pfmemalloc_wait)) { - wake_up(&pgdat->pfmemalloc_wait); - return false; - } + if (waitqueue_active(&pgdat->pfmemalloc_wait)) + wake_up_all(&pgdat->pfmemalloc_wait); return pgdat_balanced(pgdat, order, classzone_idx); } diff --git a/net/batman-adv/multicast.c b/net/batman-adv/multicast.c index ab6bb2af1d45..b24e4bb64fb5 100644 --- a/net/batman-adv/multicast.c +++ b/net/batman-adv/multicast.c @@ -685,11 +685,13 @@ static void batadv_mcast_tvlv_ogm_handler_v1(struct batadv_priv *bat_priv, if (orig_initialized) atomic_dec(&bat_priv->mcast.num_disabled); orig->capabilities |= BATADV_ORIG_CAPA_HAS_MCAST; - /* If mcast support is being switched off increase the disabled - * mcast node counter. + /* If mcast support is being switched off or if this is an initial + * OGM without mcast support then increase the disabled mcast + * node counter. */ } else if (!orig_mcast_enabled && - orig->capabilities & BATADV_ORIG_CAPA_HAS_MCAST) { + (orig->capabilities & BATADV_ORIG_CAPA_HAS_MCAST || + !orig_initialized)) { atomic_inc(&bat_priv->mcast.num_disabled); orig->capabilities &= ~BATADV_ORIG_CAPA_HAS_MCAST; } @@ -738,7 +740,8 @@ void batadv_mcast_purge_orig(struct batadv_orig_node *orig) { struct batadv_priv *bat_priv = orig->bat_priv; - if (!(orig->capabilities & BATADV_ORIG_CAPA_HAS_MCAST)) + if (!(orig->capabilities & BATADV_ORIG_CAPA_HAS_MCAST) && + orig->capa_initialized & BATADV_ORIG_CAPA_HAS_MCAST) atomic_dec(&bat_priv->mcast.num_disabled); batadv_mcast_want_unsnoop_update(bat_priv, orig, BATADV_NO_FLAGS); diff --git a/net/batman-adv/network-coding.c b/net/batman-adv/network-coding.c index 8d04d174669e..fab47f1f3ef9 100644 --- a/net/batman-adv/network-coding.c +++ b/net/batman-adv/network-coding.c @@ -133,7 +133,7 @@ int batadv_nc_mesh_init(struct batadv_priv *bat_priv) if (!bat_priv->nc.decoding_hash) goto err; - batadv_hash_set_lock_class(bat_priv->nc.coding_hash, + batadv_hash_set_lock_class(bat_priv->nc.decoding_hash, &batadv_nc_decoding_hash_lock_class_key); INIT_DELAYED_WORK(&bat_priv->nc.work, batadv_nc_worker); diff --git a/net/batman-adv/originator.c b/net/batman-adv/originator.c index 6a484514cd3e..bea8198d0198 100644 --- a/net/batman-adv/originator.c +++ b/net/batman-adv/originator.c @@ -570,9 +570,6 @@ static void batadv_orig_node_free_rcu(struct rcu_head *rcu) batadv_frag_purge_orig(orig_node, NULL); - batadv_tt_global_del_orig(orig_node->bat_priv, orig_node, -1, - "originator timed out"); - if (orig_node->bat_priv->bat_algo_ops->bat_orig_free) orig_node->bat_priv->bat_algo_ops->bat_orig_free(orig_node); @@ -678,6 +675,7 @@ struct batadv_orig_node *batadv_orig_node_new(struct batadv_priv *bat_priv, atomic_set(&orig_node->last_ttvn, 0); orig_node->tt_buff = NULL; orig_node->tt_buff_len = 0; + orig_node->last_seen = jiffies; reset_time = jiffies - 1 - msecs_to_jiffies(BATADV_RESET_PROTECTION_MS); orig_node->bcast_seqno_reset = reset_time; #ifdef CONFIG_BATMAN_ADV_MCAST @@ -977,6 +975,9 @@ static void _batadv_purge_orig(struct batadv_priv *bat_priv) if (batadv_purge_orig_node(bat_priv, orig_node)) { batadv_gw_node_delete(bat_priv, orig_node); hlist_del_rcu(&orig_node->hash_entry); + batadv_tt_global_del_orig(orig_node->bat_priv, + orig_node, -1, + "originator timed out"); batadv_orig_node_free_ref(orig_node); continue; } diff --git a/net/batman-adv/routing.c b/net/batman-adv/routing.c index 35f76f2f7824..6648f321864d 100644 --- a/net/batman-adv/routing.c +++ b/net/batman-adv/routing.c @@ -443,11 +443,13 @@ batadv_find_router(struct batadv_priv *bat_priv, router = batadv_orig_router_get(orig_node, recv_if); + if (!router) + return router; + /* only consider bonding for recv_if == BATADV_IF_DEFAULT (first hop) * and if activated. */ - if (recv_if == BATADV_IF_DEFAULT || !atomic_read(&bat_priv->bonding) || - !router) + if (!(recv_if == BATADV_IF_DEFAULT && atomic_read(&bat_priv->bonding))) return router; /* bonding: loop through the list of possible routers found diff --git a/net/ipv4/tcp_output.c b/net/ipv4/tcp_output.c index 7f18262e2326..65caf8b95e17 100644 --- a/net/ipv4/tcp_output.c +++ b/net/ipv4/tcp_output.c @@ -2019,7 +2019,7 @@ static bool tcp_write_xmit(struct sock *sk, unsigned int mss_now, int nonagle, if (unlikely(!tcp_snd_wnd_test(tp, skb, mss_now))) break; - if (tso_segs == 1) { + if (tso_segs == 1 || !max_segs) { if (unlikely(!tcp_nagle_test(tp, skb, mss_now, (tcp_skb_is_last(sk, skb) ? nonagle : TCP_NAGLE_PUSH)))) @@ -2032,7 +2032,7 @@ static bool tcp_write_xmit(struct sock *sk, unsigned int mss_now, int nonagle, } limit = mss_now; - if (tso_segs > 1 && !tcp_urg_mode(tp)) + if (tso_segs > 1 && max_segs && !tcp_urg_mode(tp)) limit = tcp_mss_split_point(sk, skb, mss_now, min_t(unsigned int, cwnd_quota, diff --git a/net/mac80211/key.c b/net/mac80211/key.c index 0bb7038121ac..bd4e46ec32bd 100644 --- a/net/mac80211/key.c +++ b/net/mac80211/key.c @@ -140,7 +140,9 @@ static int ieee80211_key_enable_hw_accel(struct ieee80211_key *key) if (!ret) { key->flags |= KEY_FLAG_UPLOADED_TO_HARDWARE; - if (!(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_MMIC)) + if (!((key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_MMIC) || + (key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV) || + (key->conf.flags & IEEE80211_KEY_FLAG_PUT_IV_SPACE))) sdata->crypto_tx_tailroom_needed_cnt--; WARN_ON((key->conf.flags & IEEE80211_KEY_FLAG_PUT_IV_SPACE) && @@ -188,7 +190,9 @@ static void ieee80211_key_disable_hw_accel(struct ieee80211_key *key) sta = key->sta; sdata = key->sdata; - if (!(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_MMIC)) + if (!((key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_MMIC) || + (key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV) || + (key->conf.flags & IEEE80211_KEY_FLAG_PUT_IV_SPACE))) increment_tailroom_need_count(sdata); ret = drv_set_key(key->local, DISABLE_KEY, sdata, @@ -884,7 +888,9 @@ void ieee80211_remove_key(struct ieee80211_key_conf *keyconf) if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE) { key->flags &= ~KEY_FLAG_UPLOADED_TO_HARDWARE; - if (!(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_MMIC)) + if (!((key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_MMIC) || + (key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV) || + (key->conf.flags & IEEE80211_KEY_FLAG_PUT_IV_SPACE))) increment_tailroom_need_count(key->sdata); } diff --git a/net/openvswitch/flow.c b/net/openvswitch/flow.c index 70bef2ab7f2b..da2fae0873a5 100644 --- a/net/openvswitch/flow.c +++ b/net/openvswitch/flow.c @@ -70,6 +70,7 @@ void ovs_flow_stats_update(struct sw_flow *flow, __be16 tcp_flags, { struct flow_stats *stats; int node = numa_node_id(); + int len = skb->len + (vlan_tx_tag_present(skb) ? VLAN_HLEN : 0); stats = rcu_dereference(flow->stats[node]); @@ -105,7 +106,7 @@ void ovs_flow_stats_update(struct sw_flow *flow, __be16 tcp_flags, if (likely(new_stats)) { new_stats->used = jiffies; new_stats->packet_count = 1; - new_stats->byte_count = skb->len; + new_stats->byte_count = len; new_stats->tcp_flags = tcp_flags; spin_lock_init(&new_stats->lock); @@ -120,7 +121,7 @@ void ovs_flow_stats_update(struct sw_flow *flow, __be16 tcp_flags, stats->used = jiffies; stats->packet_count++; - stats->byte_count += skb->len; + stats->byte_count += len; stats->tcp_flags |= tcp_flags; unlock: spin_unlock(&stats->lock); diff --git a/net/openvswitch/vport.c b/net/openvswitch/vport.c index 53f3ebbfceab..2034c6d9cb5a 100644 --- a/net/openvswitch/vport.c +++ b/net/openvswitch/vport.c @@ -480,7 +480,7 @@ void ovs_vport_receive(struct vport *vport, struct sk_buff *skb, stats = this_cpu_ptr(vport->percpu_stats); u64_stats_update_begin(&stats->syncp); stats->rx_packets++; - stats->rx_bytes += skb->len; + stats->rx_bytes += skb->len + (vlan_tx_tag_present(skb) ? VLAN_HLEN : 0); u64_stats_update_end(&stats->syncp); OVS_CB(skb)->input_vport = vport; diff --git a/scripts/Makefile.clean b/scripts/Makefile.clean index 1bca180db8ad..627f8cbbedb8 100644 --- a/scripts/Makefile.clean +++ b/scripts/Makefile.clean @@ -42,19 +42,19 @@ __clean-files := $(extra-y) $(extra-m) $(extra-) \ __clean-files := $(filter-out $(no-clean-files), $(__clean-files)) -# as clean-files is given relative to the current directory, this adds -# a $(obj) prefix, except for absolute paths +# clean-files is given relative to the current directory, unless it +# starts with $(objtree)/ (which means "./", so do not add "./" unless +# you want to delete a file from the toplevel object directory). __clean-files := $(wildcard \ - $(addprefix $(obj)/, $(filter-out /%, $(__clean-files))) \ - $(filter /%, $(__clean-files))) + $(addprefix $(obj)/, $(filter-out $(objtree)/%, $(__clean-files))) \ + $(filter $(objtree)/%, $(__clean-files))) -# as clean-dirs is given relative to the current directory, this adds -# a $(obj) prefix, except for absolute paths +# same as clean-files __clean-dirs := $(wildcard \ - $(addprefix $(obj)/, $(filter-out /%, $(clean-dirs))) \ - $(filter /%, $(clean-dirs))) + $(addprefix $(obj)/, $(filter-out $(objtree)/%, $(clean-dirs))) \ + $(filter $(objtree)/%, $(clean-dirs))) # ========================================================================== diff --git a/security/keys/gc.c b/security/keys/gc.c index 9609a7f0faea..c7952375ac53 100644 --- a/security/keys/gc.c +++ b/security/keys/gc.c @@ -148,12 +148,12 @@ static noinline void key_gc_unused_keys(struct list_head *keys) if (test_bit(KEY_FLAG_INSTANTIATED, &key->flags)) atomic_dec(&key->user->nikeys); - key_user_put(key->user); - /* now throw away the key memory */ if (key->type->destroy) key->type->destroy(key); + key_user_put(key->user); + kfree(key->description); #ifdef KEY_DEBUGGING |