parent
609d13a075
commit
4e786ca91f
@ -1 +0,0 @@
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# Calculate append=skip merge(sys-kernel/calculate-sources)=>5.4,5.5
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File diff suppressed because it is too large
Load Diff
@ -1,133 +0,0 @@
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# Calculate format=kernel name=.config os_install_arch_machine==x86_64
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# CONFIG_ADT7316 is not set
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# CONFIG_AK09911 is not set
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# CONFIG_AK8975 is not set
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# CONFIG_BACKLIGHT_ADP8870 is not set
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# CONFIG_BACKLIGHT_APPLE is not set
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# CONFIG_BACKLIGHT_ARCXCNN is not set
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# CONFIG_BACKLIGHT_BD6107 is not set
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# CONFIG_BACKLIGHT_GENERIC is not set
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# CONFIG_BACKLIGHT_GPIO is not set
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# CONFIG_BACKLIGHT_LM3639 is not set
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# CONFIG_BACKLIGHT_LV5207LP is not set
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# CONFIG_BACKLIGHT_PM8941_WLED is not set
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# CONFIG_BCMA_DRIVER_GPIO is not set
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# CONFIG_CHARGER_BQ24190 is not set
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# CONFIG_CHARGER_BQ24257 is not set
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# CONFIG_CHARGER_BQ24735 is not set
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# CONFIG_CHARGER_BQ25890 is not set
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# CONFIG_CHARGER_GPIO is not set
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# CONFIG_CHARGER_LT3651 is not set
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# CONFIG_CHARGER_RT9455 is not set
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# CONFIG_DEBUG_GPIO is not set
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CONFIG_DELL_RBU=m
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CONFIG_DELL_SMBIOS_SMM=y
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CONFIG_DELL_SMBIOS_WMI=y
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# CONFIG_DHT11 is not set
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# CONFIG_EXTCON_GPIO is not set
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# CONFIG_EXTCON_INTEL_INT3496 is not set
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# CONFIG_EXTCON_MAX3355 is not set
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# CONFIG_EXTCON_PTN5150 is not set
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# CONFIG_EXTCON_USB_GPIO is not set
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# CONFIG_FB_VIA is not set
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CONFIG_GPIO_ACPI=y
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# CONFIG_GPIO_ADP5588 is not set
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# CONFIG_GPIO_AMD8111 is not set
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CONFIG_GPIO_AMD_FCH=m
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# CONFIG_GPIO_AMDPT is not set
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# CONFIG_GPIO_BT8XX is not set
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# CONFIG_GPIO_DLN2 is not set
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# CONFIG_GPIO_DWAPB is not set
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# CONFIG_GPIO_EXAR is not set
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# CONFIG_GPIO_F7188X is not set
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# CONFIG_GPIO_GENERIC_PLATFORM is not set
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# CONFIG_GPIO_ICH is not set
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# CONFIG_GPIO_IT87 is not set
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CONFIG_GPIOLIB_FASTPATH_LIMIT=512
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CONFIG_GPIOLIB_IRQCHIP=y
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CONFIG_GPIOLIB=y
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# CONFIG_GPIO_LP873X is not set
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# CONFIG_GPIO_LYNXPOINT is not set
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# CONFIG_GPIO_MAX7300 is not set
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# CONFIG_GPIO_MAX732X is not set
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# CONFIG_GPIO_MB86S7X is not set
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# CONFIG_GPIO_ML_IOH is not set
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# CONFIG_GPIO_MOCKUP is not set
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# CONFIG_GPIO_PCA953X is not set
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# CONFIG_GPIO_PCF857X is not set
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# CONFIG_GPIO_PCIE_IDIO_24 is not set
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# CONFIG_GPIO_PCI_IDIO_16 is not set
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# CONFIG_GPIO_RDC321X is not set
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# CONFIG_GPIO_SCH311X is not set
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# CONFIG_GPIO_SCH is not set
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# CONFIG_GPIO_SYSFS is not set
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# CONFIG_GPIO_TPIC2810 is not set
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# CONFIG_GPIO_TPS65086 is not set
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# CONFIG_GPIO_TPS65912 is not set
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# CONFIG_GPIO_TQMX86 is not set
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# CONFIG_GPIO_VIPERBOARD is not set
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# CONFIG_GPIO_VX855 is not set
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# CONFIG_GPIO_WHISKEY_COVE is not set
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# CONFIG_GPIO_WINBOND is not set
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# CONFIG_GPIO_WS16C48 is not set
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# CONFIG_GPIO_XILINX is not set
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# CONFIG_HID_CP2112 is not set
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CONFIG_HID_SENSOR_TEMP=m
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CONFIG_HUAWEI_WMI=m
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# CONFIG_HX711 is not set
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# CONFIG_I2C_CBUS_GPIO is not set
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CONFIG_I2C_DESIGNWARE_SLAVE=y
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# CONFIG_I2C_GPIO is not set
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CONFIG_I2C_MULTI_INSTANTIATE=m
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CONFIG_I2C_MUX_GPIO=m
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CONFIG_I2C_MUX_LTC4306=m
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CONFIG_I2C_MUX_PCA954x=m
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# CONFIG_INPUT_DRV260X_HAPTICS is not set
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# CONFIG_INPUT_GP2A is not set
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# CONFIG_INPUT_GPIO_BEEPER is not set
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# CONFIG_INPUT_GPIO_DECODER is not set
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# CONFIG_INPUT_GPIO_ROTARY_ENCODER is not set
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# CONFIG_INPUT_GPIO_VIBRA is not set
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CONFIG_INTEL_ATOMISP2_PM=m
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CONFIG_INTEL_INT0002_VGPIO=m
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# CONFIG_INTEL_SOC_PMIC_CHTDC_TI is not set
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# CONFIG_KEYBOARD_GPIO is not set
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CONFIG_KEYBOARD_GPIO_POLLED=m
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# CONFIG_KEYBOARD_MATRIX is not set
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CONFIG_LEDS_GPIO=m
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# CONFIG_LEDS_LP3952 is not set
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# CONFIG_LEDS_PCA9532_GPIO is not set
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# CONFIG_LEDS_PCA955X_GPIO is not set
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# CONFIG_LEDS_TRIGGER_GPIO is not set
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# CONFIG_MANAGER_SBS is not set
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# CONFIG_MDIO_GPIO is not set
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# CONFIG_MEN_A21_WDT is not set
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# CONFIG_MMA7660 is not set
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# CONFIG_MMC35240 is not set
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# CONFIG_MOUSE_GPIO is not set
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CONFIG_PCENGINES_APU2=m
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CONFIG_PEAQ_WMI=m
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# CONFIG_REGULATOR_GPIO is not set
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# CONFIG_REGULATOR_TPS65132 is not set
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# CONFIG_RFKILL_GPIO is not set
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CONFIG_SENSORS_IBMAEM=m
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CONFIG_SENSORS_IBMPEX=m
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CONFIG_SENSORS_IIO_HWMON=m
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CONFIG_SENSORS_JC42=m
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CONFIG_SENSORS_SHT15=m
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CONFIG_SERIAL_MCTRL_GPIO=y
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# CONFIG_SERIO_GPIO_PS2 is not set
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# CONFIG_SRF04 is not set
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# CONFIG_SSB_DRIVER_GPIO is not set
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# CONFIG_TI_ST is not set
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CONFIG_TOUCHSCREEN_AUO_PIXCIR=m
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CONFIG_TOUCHSCREEN_CY8CTMG110=m
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CONFIG_TOUCHSCREEN_GOODIX=m
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CONFIG_TOUCHSCREEN_HIDEEP=m
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CONFIG_TOUCHSCREEN_RM_TS=m
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CONFIG_TOUCHSCREEN_SIS_I2C=m
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CONFIG_TOUCHSCREEN_ZFORCE=m
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# CONFIG_TPS65010 is not set
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# CONFIG_UCB1400_CORE is not set
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# CONFIG_USB_CONN_GPIO is not set
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# CONFIG_USB_GPIO_VBUS is not set
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@ -1,3 +0,0 @@
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# Calculate format=kernel name=.config
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CONFIG_DRM_VMWGFX_FBCON=y
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CONFIG_DRM_VMWGFX=m
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@ -1,13 +0,0 @@
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# Calculate format=kernel name=.config
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CONFIG_ARCH_ENABLE_HUGEPAGE_MIGRATION=y
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CONFIG_CGROUP_HUGETLB=y
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CONFIG_CGROUP_NET_PRIO=y
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CONFIG_HUGETLBFS=y
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CONFIG_HUGETLB_PAGE=y
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CONFIG_IP_VS=m
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CONFIG_IP_VS_NFCT=y
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CONFIG_IP_VS_PROTO_TCP=y
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CONFIG_IP_VS_PROTO_UDP=y
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CONFIG_IP_VS_RR=m
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CONFIG_NETFILTER_XT_MATCH_IPVS=m
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CONFIG_NETFILTER_XT_TARGET_AUDIT=m
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@ -1,31 +0,0 @@
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# Calculate format=kernel name=.config
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CONFIG_EXFAT_DEFAULT_CODEPAGE=437
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CONFIG_EXFAT_DEFAULT_IOCHARSET="utf8"
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CONFIG_EXFAT_DELAYED_SYNC=y
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CONFIG_EXFAT_DISCARD=y
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# CONFIG_EXFAT_DONT_MOUNT_VFAT is not set
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CONFIG_EXFAT_FS=m
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# CONFIG_EXFAT_DEBUG_MSG is not set
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# CONFIG_EXFAT_KERNEL_DEBUG is not set
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# CONFIG_IP_VS_DEBUG is not set
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# CONFIG_IP_VS_DH is not set
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# CONFIG_IP_VS_FO is not set
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# CONFIG_IP_VS_FTP is not set
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# CONFIG_IP_VS_IPV6 is not set
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# CONFIG_IP_VS_LBLC is not set
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# CONFIG_IP_VS_LBLCR is not set
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# CONFIG_IP_VS_LC is not set
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# CONFIG_IP_VS_MH is not set
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CONFIG_IP_VS_MH_TAB_INDEX=12
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# CONFIG_IP_VS_NQ is not set
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# CONFIG_IP_VS_OVF is not set
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# CONFIG_IP_VS_PE_SIP is not set
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# CONFIG_IP_VS_PROTO_AH is not set
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# CONFIG_IP_VS_PROTO_ESP is not set
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# CONFIG_IP_VS_PROTO_SCTP is not set
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# CONFIG_IP_VS_SED is not set
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# CONFIG_IP_VS_SH is not set
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CONFIG_IP_VS_SH_TAB_BITS=8
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CONFIG_IP_VS_TAB_BITS=12
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# CONFIG_IP_VS_WLC is not set
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# CONFIG_IP_VS_WRR is not set
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@ -1,2 +0,0 @@
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# Calculate format=kernel name=.config
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CONFIG_USB_PRINTER=m
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@ -1,7 +0,0 @@
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# Calculate format=kernel name=.config
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CONFIG_CRYPTO_LZ4HC=m
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CONFIG_CRYPTO_LZ4=m
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CONFIG_LZ4_COMPRESS=m
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CONFIG_LZ4HC_COMPRESS=m
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CONFIG_NET_REDIRECT=y
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CONFIG_ZRAM_WRITEBACK=y
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@ -1,4 +0,0 @@
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# Calculate format=kernel name=.config
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CONFIG_SQUASHFS_4K_DEVBLK_SIZE=y
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# CONFIG_SQUASHFS_DECOMP_MULTI is not set
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CONFIG_SQUASHFS_DECOMP_MULTI_PERCPU=y
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@ -1,10 +0,0 @@
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# Calculate format=kernel name=.config
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CONFIG_CRASH_DUMP=y
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# CONFIG_PROC_VMCORE_DEVICE_DUMP is not set
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CONFIG_PROC_VMCORE=y
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# CONFIG_UFS_DEBUG is not set
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CONFIG_UFS_FS=m
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# CONFIG_UFS_FS_WRITE is not set
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# CONFIG_VMWARE_BALLOON is not set
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CONFIG_VMWARE_VMCI=m
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CONFIG_VMWARE_VMCI_VSOCKETS=m
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@ -1,24 +0,0 @@
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# Calculate format=kernel name=.config
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CONFIG_ACPI_ADXL=y
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# CONFIG_ACPI_EXTLOG is not set
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CONFIG_EDAC_AMD64_ERROR_INJECTION=y
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CONFIG_EDAC_AMD64=m
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# CONFIG_EDAC_DEBUG is not set
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CONFIG_EDAC_DECODE_MCE=m
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CONFIG_EDAC_E752X=m
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CONFIG_EDAC_I10NM=m
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CONFIG_EDAC_I3000=m
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CONFIG_EDAC_I3200=m
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CONFIG_EDAC_I5000=m
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CONFIG_EDAC_I5100=m
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CONFIG_EDAC_I5400=m
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CONFIG_EDAC_I7300=m
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CONFIG_EDAC_I7CORE=m
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CONFIG_EDAC_I82975X=m
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CONFIG_EDAC_IE31200=m
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CONFIG_EDAC_LEGACY_SYSFS=y
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CONFIG_EDAC=m
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CONFIG_EDAC_PND2=m
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CONFIG_EDAC_SBRIDGE=m
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CONFIG_EDAC_SKX=m
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CONFIG_EDAC_X38=m
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@ -1,14 +0,0 @@
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# Calculate format=kernel name=.config
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CONFIG_HW_RANDOM_TPM=y
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# CONFIG_TCG_ATMEL is not set
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CONFIG_TCG_CRB=m
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# CONFIG_TCG_INFINEON is not set
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# CONFIG_TCG_NSC is not set
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# CONFIG_TCG_TIS_I2C_ATMEL is not set
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# CONFIG_TCG_TIS_I2C_INFINEON is not set
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# CONFIG_TCG_TIS_I2C_NUVOTON is not set
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# CONFIG_TCG_TIS is not set
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# CONFIG_TCG_TIS_ST33ZP24_I2C is not set
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CONFIG_TCG_TPM=m
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# CONFIG_TCG_VTPM_PROXY is not set
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# CONFIG_TRUSTED_KEYS is not set
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@ -1,14 +0,0 @@
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# Calculate format=kernel name=.config merge(sys-kernel/calculate-sources[-desktop])!=
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# CONFIG_BT is not set
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# CONFIG_GAMEPORT is not set
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# CONFIG_HZ_1000 is not set
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# CONFIG_INPUT_JOYSTICK is not set
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# CONFIG_INPUT_MOUSE is not set
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# CONFIG_INPUT_TABLET is not set
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# CONFIG_INPUT_TOUCHSCREEN is not set
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# CONFIG_MACINTOSH_DRIVERS is not set
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# CONFIG_MEDIA_SUPPORT is not set
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# CONFIG_PREEMPT is not set
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# CONFIG_RC_CORE is not set
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# CONFIG_SOUND is not set
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# CONFIG_USB_GADGET is not set
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@ -1,6 +0,0 @@
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# Calculate format=kernel name=.config
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# CONFIG_KERNEL_XZ is not set
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CONFIG_KERNEL_ZSTD=y
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# CONFIG_MODULE_COMPRESS_XZ is not set
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CONFIG_MODULE_COMPRESS_ZSTD=y
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CONFIG_ZSTD_DECOMPRESS=y
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File diff suppressed because it is too large
Load Diff
File diff suppressed because it is too large
Load Diff
@ -1,326 +0,0 @@
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# Calculate format=diff merge(sys-kernel/calculate-sources[fsync])!=
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||||
|
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Squashed futex-wait-multiple patchset onto stable release v5.2.1
|
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https://gitlab.collabora.com/krisman/linux/commits/futex-wait-multiple-master
|
||||
|
||||
diff --git a/include/uapi/linux/futex.h b/include/uapi/linux/futex.h
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||||
index a89eb0accd5e..c34e52e0f787 100644
|
||||
--- a/include/uapi/linux/futex.h
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||||
+++ b/include/uapi/linux/futex.h
|
||||
@@ -21,6 +21,7 @@
|
||||
#define FUTEX_WAKE_BITSET 10
|
||||
#define FUTEX_WAIT_REQUEUE_PI 11
|
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#define FUTEX_CMP_REQUEUE_PI 12
|
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+#define FUTEX_WAIT_MULTIPLE 31
|
||||
|
||||
#define FUTEX_PRIVATE_FLAG 128
|
||||
#define FUTEX_CLOCK_REALTIME 256
|
||||
@@ -150,4 +151,10 @@ struct robust_list_head {
|
||||
(((op & 0xf) << 28) | ((cmp & 0xf) << 24) \
|
||||
| ((oparg & 0xfff) << 12) | (cmparg & 0xfff))
|
||||
|
||||
+struct futex_wait_block {
|
||||
+ __u32 __user *uaddr;
|
||||
+ __u32 val;
|
||||
+ __u32 bitset;
|
||||
+};
|
||||
+
|
||||
#endif /* _UAPI_LINUX_FUTEX_H */
|
||||
diff --git a/kernel/futex.c b/kernel/futex.c
|
||||
index 6d50728ef2e7..338ae60bd86c 100644
|
||||
--- a/kernel/futex.c
|
||||
+++ b/kernel/futex.c
|
||||
@@ -183,6 +183,7 @@ static int __read_mostly futex_cmpxchg_enabled;
|
||||
#endif
|
||||
#define FLAGS_CLOCKRT 0x02
|
||||
#define FLAGS_HAS_TIMEOUT 0x04
|
||||
+#define FLAGS_WAKE_MULTIPLE 0x08
|
||||
|
||||
/*
|
||||
* Priority Inheritance state:
|
||||
@@ -2631,6 +2632,39 @@ static void futex_wait_queue_me(struct futex_hash_bucket *hb, struct futex_q *q,
|
||||
__set_current_state(TASK_RUNNING);
|
||||
}
|
||||
|
||||
+static int __futex_wait_setup(u32 __user *uaddr, u32 val, unsigned int flags,
|
||||
+ struct futex_q *q, struct futex_hash_bucket **hb)
|
||||
+{
|
||||
+
|
||||
+ u32 uval;
|
||||
+ int ret;
|
||||
+
|
||||
+retry_private:
|
||||
+ *hb = queue_lock(q);
|
||||
+
|
||||
+ ret = get_futex_value_locked(&uval, uaddr);
|
||||
+
|
||||
+ if (ret) {
|
||||
+ queue_unlock(*hb);
|
||||
+
|
||||
+ ret = get_user(uval, uaddr);
|
||||
+ if (ret)
|
||||
+ return ret;
|
||||
+
|
||||
+ if (!(flags & FLAGS_SHARED))
|
||||
+ goto retry_private;
|
||||
+
|
||||
+ return 1;
|
||||
+ }
|
||||
+
|
||||
+ if (uval != val) {
|
||||
+ queue_unlock(*hb);
|
||||
+ ret = -EWOULDBLOCK;
|
||||
+ }
|
||||
+
|
||||
+ return ret;
|
||||
+}
|
||||
+
|
||||
/**
|
||||
* futex_wait_setup() - Prepare to wait on a futex
|
||||
* @uaddr: the futex userspace address
|
||||
@@ -2651,7 +2685,6 @@ static void futex_wait_queue_me(struct futex_hash_bucket *hb, struct futex_q *q,
|
||||
static int futex_wait_setup(u32 __user *uaddr, u32 val, unsigned int flags,
|
||||
struct futex_q *q, struct futex_hash_bucket **hb)
|
||||
{
|
||||
- u32 uval;
|
||||
int ret;
|
||||
|
||||
/*
|
||||
@@ -2672,38 +2705,161 @@ static int futex_wait_setup(u32 __user *uaddr, u32 val, unsigned int flags,
|
||||
* absorb a wakeup if *uaddr does not match the desired values
|
||||
* while the syscall executes.
|
||||
*/
|
||||
-retry:
|
||||
- ret = get_futex_key(uaddr, flags & FLAGS_SHARED, &q->key, FUTEX_READ);
|
||||
- if (unlikely(ret != 0))
|
||||
- return ret;
|
||||
+ do {
|
||||
+ ret = get_futex_key(uaddr, flags & FLAGS_SHARED,
|
||||
+ &q->key, FUTEX_READ);
|
||||
+ if (unlikely(ret != 0))
|
||||
+ return ret;
|
||||
|
||||
-retry_private:
|
||||
- *hb = queue_lock(q);
|
||||
+ ret = __futex_wait_setup(uaddr, val, flags, q, hb);
|
||||
|
||||
- ret = get_futex_value_locked(&uval, uaddr);
|
||||
+ /* Drop key reference if retry or error. */
|
||||
+ if (ret)
|
||||
+ put_futex_key(&q->key);
|
||||
+ } while (ret > 0);
|
||||
|
||||
- if (ret) {
|
||||
- queue_unlock(*hb);
|
||||
+ return ret;
|
||||
+}
|
||||
|
||||
- ret = get_user(uval, uaddr);
|
||||
- if (ret)
|
||||
+static int do_futex_wait_multiple(struct futex_wait_block *wb,
|
||||
+ u32 count, unsigned int flags,
|
||||
+ ktime_t *abs_time)
|
||||
+{
|
||||
+
|
||||
+ struct hrtimer_sleeper timeout, *to;
|
||||
+ struct futex_hash_bucket *hb;
|
||||
+ struct futex_q *qs = NULL;
|
||||
+ int ret;
|
||||
+ int i;
|
||||
+
|
||||
+ qs = kcalloc(count, sizeof(struct futex_q), GFP_KERNEL);
|
||||
+ if (!qs)
|
||||
+ return -ENOMEM;
|
||||
+
|
||||
+ to = futex_setup_timer(abs_time, &timeout, flags,
|
||||
+ current->timer_slack_ns);
|
||||
+ retry:
|
||||
+ for (i = 0; i < count; i++) {
|
||||
+ qs[i].key = FUTEX_KEY_INIT;
|
||||
+ qs[i].bitset = wb[i].bitset;
|
||||
+
|
||||
+ ret = get_futex_key(wb[i].uaddr, flags & FLAGS_SHARED,
|
||||
+ &qs[i].key, FUTEX_READ);
|
||||
+ if (unlikely(ret != 0)) {
|
||||
+ for (--i; i >= 0; i--)
|
||||
+ put_futex_key(&qs[i].key);
|
||||
goto out;
|
||||
+ }
|
||||
+ }
|
||||
|
||||
- if (!(flags & FLAGS_SHARED))
|
||||
- goto retry_private;
|
||||
+ set_current_state(TASK_INTERRUPTIBLE);
|
||||
+
|
||||
+ for (i = 0; i < count; i++) {
|
||||
+ ret = __futex_wait_setup(wb[i].uaddr, wb[i].val,
|
||||
+ flags, &qs[i], &hb);
|
||||
+ if (ret) {
|
||||
+ /* Drop the failed key directly. keys 0..(i-1)
|
||||
+ * will be put by unqueue_me. */
|
||||
+ put_futex_key(&qs[i].key);
|
||||
+
|
||||
+ /* Undo the partial work we did. */
|
||||
+ for (--i; i >= 0; i--)
|
||||
+ unqueue_me(&qs[i]);
|
||||
+
|
||||
+ __set_current_state(TASK_RUNNING);
|
||||
+ if (ret > 0)
|
||||
+ goto retry;
|
||||
+ goto out;
|
||||
+ }
|
||||
+
|
||||
+ /* We can't hold to the bucket lock when dealing with
|
||||
+ * the next futex. Queue ourselves now so we can unlock
|
||||
+ * it before moving on. */
|
||||
+ queue_me(&qs[i], hb);
|
||||
+ }
|
||||
+
|
||||
+ if (to)
|
||||
+ hrtimer_start_expires(&to->timer, HRTIMER_MODE_ABS);
|
||||
+
|
||||
+ /* There is no easy to way to check if we are wake already on
|
||||
+ * multiple futexes without waking through each one of them. So
|
||||
+ * just sleep and let the scheduler handle it.
|
||||
+ */
|
||||
+ if (!to || to->task)
|
||||
+ freezable_schedule();
|
||||
+
|
||||
+ __set_current_state(TASK_RUNNING);
|
||||
|
||||
- put_futex_key(&q->key);
|
||||
+ ret = -ETIMEDOUT;
|
||||
+ /* If we were woken (and unqueued), we succeeded. */
|
||||
+ for (i = 0; i < count; i++)
|
||||
+ if (!unqueue_me(&qs[i]))
|
||||
+ ret = i;
|
||||
+
|
||||
+ /* Succeed wakeup */
|
||||
+ if (ret >= 0)
|
||||
+ goto out;
|
||||
+
|
||||
+ /* Woken by triggered timeout */
|
||||
+ if (to && !to->task)
|
||||
+ goto out;
|
||||
+
|
||||
+ /*
|
||||
+ * We expect signal_pending(current), but we might be the
|
||||
+ * victim of a spurious wakeup as well.
|
||||
+ */
|
||||
+ if (!signal_pending(current))
|
||||
goto retry;
|
||||
+
|
||||
+ ret = -ERESTARTSYS;
|
||||
+ if (!abs_time)
|
||||
+ goto out;
|
||||
+
|
||||
+ ret = -ERESTART_RESTARTBLOCK;
|
||||
+ out:
|
||||
+ if (to) {
|
||||
+ hrtimer_cancel(&to->timer);
|
||||
+ destroy_hrtimer_on_stack(&to->timer);
|
||||
}
|
||||
|
||||
- if (uval != val) {
|
||||
- queue_unlock(*hb);
|
||||
- ret = -EWOULDBLOCK;
|
||||
+ kfree(qs);
|
||||
+ return ret;
|
||||
+}
|
||||
+
|
||||
+static int futex_wait_multiple(u32 __user *uaddr, unsigned int flags,
|
||||
+ u32 count, ktime_t *abs_time)
|
||||
+{
|
||||
+ struct futex_wait_block *wb;
|
||||
+ struct restart_block *restart;
|
||||
+ int ret;
|
||||
+
|
||||
+ if (!count)
|
||||
+ return -EINVAL;
|
||||
+
|
||||
+ wb = kcalloc(count, sizeof(struct futex_wait_block), GFP_KERNEL);
|
||||
+ if (!wb)
|
||||
+ return -ENOMEM;
|
||||
+
|
||||
+ if (copy_from_user(wb, uaddr,
|
||||
+ count * sizeof(struct futex_wait_block))) {
|
||||
+ ret = -EFAULT;
|
||||
+ goto out;
|
||||
+ }
|
||||
+
|
||||
+ ret = do_futex_wait_multiple(wb, count, flags, abs_time);
|
||||
+
|
||||
+ if (ret == -ERESTART_RESTARTBLOCK) {
|
||||
+ restart = ¤t->restart_block;
|
||||
+ restart->fn = futex_wait_restart;
|
||||
+ restart->futex.uaddr = uaddr;
|
||||
+ restart->futex.val = count;
|
||||
+ restart->futex.time = *abs_time;
|
||||
+ restart->futex.flags = (flags | FLAGS_HAS_TIMEOUT |
|
||||
+ FLAGS_WAKE_MULTIPLE);
|
||||
}
|
||||
|
||||
out:
|
||||
- if (ret)
|
||||
- put_futex_key(&q->key);
|
||||
+ kfree(wb);
|
||||
return ret;
|
||||
}
|
||||
|
||||
@@ -2784,6 +2940,10 @@ static long futex_wait_restart(struct restart_block *restart)
|
||||
}
|
||||
restart->fn = do_no_restart_syscall;
|
||||
|
||||
+ if (restart->futex.flags & FLAGS_WAKE_MULTIPLE)
|
||||
+ return (long)futex_wait_multiple(uaddr, restart->futex.flags,
|
||||
+ restart->futex.val, tp);
|
||||
+
|
||||
return (long)futex_wait(uaddr, restart->futex.flags,
|
||||
restart->futex.val, tp, restart->futex.bitset);
|
||||
}
|
||||
@@ -3667,6 +3827,8 @@ long do_futex(u32 __user *uaddr, int op, u32 val, ktime_t *timeout,
|
||||
uaddr2);
|
||||
case FUTEX_CMP_REQUEUE_PI:
|
||||
return futex_requeue(uaddr, flags, uaddr2, val, val2, &val3, 1);
|
||||
+ case FUTEX_WAIT_MULTIPLE:
|
||||
+ return futex_wait_multiple(uaddr, flags, val, timeout);
|
||||
}
|
||||
return -ENOSYS;
|
||||
}
|
||||
@@ -3683,7 +3845,8 @@ SYSCALL_DEFINE6(futex, u32 __user *, uaddr, int, op, u32, val,
|
||||
|
||||
if (utime && (cmd == FUTEX_WAIT || cmd == FUTEX_LOCK_PI ||
|
||||
cmd == FUTEX_WAIT_BITSET ||
|
||||
- cmd == FUTEX_WAIT_REQUEUE_PI)) {
|
||||
+ cmd == FUTEX_WAIT_REQUEUE_PI ||
|
||||
+ cmd == FUTEX_WAIT_MULTIPLE)) {
|
||||
if (unlikely(should_fail_futex(!(op & FUTEX_PRIVATE_FLAG))))
|
||||
return -EFAULT;
|
||||
if (get_timespec64(&ts, utime))
|
||||
@@ -3692,7 +3855,7 @@ SYSCALL_DEFINE6(futex, u32 __user *, uaddr, int, op, u32, val,
|
||||
return -EINVAL;
|
||||
|
||||
t = timespec64_to_ktime(ts);
|
||||
- if (cmd == FUTEX_WAIT)
|
||||
+ if (cmd == FUTEX_WAIT || cmd == FUTEX_WAIT_MULTIPLE)
|
||||
t = ktime_add_safe(ktime_get(), t);
|
||||
tp = &t;
|
||||
}
|
||||
@@ -3876,14 +4039,15 @@ SYSCALL_DEFINE6(futex_time32, u32 __user *, uaddr, int, op, u32, val,
|
||||
|
||||
if (utime && (cmd == FUTEX_WAIT || cmd == FUTEX_LOCK_PI ||
|
||||
cmd == FUTEX_WAIT_BITSET ||
|
||||
- cmd == FUTEX_WAIT_REQUEUE_PI)) {
|
||||
+ cmd == FUTEX_WAIT_REQUEUE_PI ||
|
||||
+ cmd == FUTEX_WAIT_MULTIPLE)) {
|
||||
if (get_old_timespec32(&ts, utime))
|
||||
return -EFAULT;
|
||||
if (!timespec64_valid(&ts))
|
||||
return -EINVAL;
|
||||
|
||||
t = timespec64_to_ktime(ts);
|
||||
- if (cmd == FUTEX_WAIT)
|
||||
+ if (cmd == FUTEX_WAIT || cmd == FUTEX_WAIT_MULTIPLE)
|
||||
t = ktime_add_safe(ktime_get(), t);
|
||||
tp = &t;
|
||||
}
|
||||
File diff suppressed because it is too large
Load Diff
@ -1,24 +0,0 @@
|
||||
# Copyright 1999-2015 Gentoo Foundation
|
||||
# Distributed under the terms of the GNU General Public License v2
|
||||
# $Header: $
|
||||
|
||||
EAPI=7
|
||||
ETYPE="sources"
|
||||
|
||||
inherit calculate-kernel-8 eutils
|
||||
|
||||
DESCRIPTION="Calculate Linux kernel image"
|
||||
KEYWORDS="amd64"
|
||||
HOMEPAGE="http://www.calculate-linux.org"
|
||||
|
||||
SRC_URI="${KERNEL_URI} ${ARCH_URI}"
|
||||
|
||||
IUSE="fsync muqss uksm"
|
||||
|
||||
src_unpack() {
|
||||
calculate-kernel-8_src_unpack
|
||||
}
|
||||
|
||||
pkg_postinst() {
|
||||
calculate-kernel-8_pkg_postinst
|
||||
}
|
||||
@ -1,24 +0,0 @@
|
||||
# Copyright 1999-2015 Gentoo Foundation
|
||||
# Distributed under the terms of the GNU General Public License v2
|
||||
# $Header: $
|
||||
|
||||
EAPI=7
|
||||
ETYPE="sources"
|
||||
|
||||
inherit calculate-kernel-8 eutils
|
||||
|
||||
DESCRIPTION="Calculate Linux kernel image"
|
||||
KEYWORDS="~amd64"
|
||||
HOMEPAGE="http://www.calculate-linux.org"
|
||||
|
||||
SRC_URI="${KERNEL_URI} ${ARCH_URI}"
|
||||
|
||||
IUSE="fsync muqss uksm"
|
||||
|
||||
src_unpack() {
|
||||
calculate-kernel-8_src_unpack
|
||||
}
|
||||
|
||||
pkg_postinst() {
|
||||
calculate-kernel-8_pkg_postinst
|
||||
}
|
||||
Loading…
Reference in new issue