30 Dec, 2020
2 commits
-
Changes in 5.10.4
hwmon: (k10temp) Remove support for displaying voltage and current on Zen CPUs
drm/gma500: fix double free of gma_connector
iio: adc: at91_adc: add Kconfig dep on the OF symbol and remove of_match_ptr()
drm/aspeed: Fix Kconfig warning & subsequent build errors
drm/mcde: Fix handling of platform_get_irq() error
drm/tve200: Fix handling of platform_get_irq() error
arm64: dts: renesas: hihope-rzg2-ex: Drop rxc-skew-ps from ethernet-phy node
arm64: dts: renesas: cat875: Remove rxc-skew-ps from ethernet-phy node
soc: renesas: rmobile-sysc: Fix some leaks in rmobile_init_pm_domains()
soc: mediatek: Check if power domains can be powered on at boot time
arm64: dts: mediatek: mt8183: fix gce incorrect mbox-cells value
arm64: dts: ipq6018: update the reserved-memory node
arm64: dts: qcom: sc7180: Fix one forgotten interconnect reference
soc: qcom: geni: More properly switch to DMA mode
Revert "i2c: i2c-qcom-geni: Fix DMA transfer race"
RDMA/bnxt_re: Set queue pair state when being queried
rtc: pcf2127: fix pcf2127_nvmem_read/write() returns
RDMA/bnxt_re: Fix entry size during SRQ create
selinux: fix error initialization in inode_doinit_with_dentry()
ARM: dts: aspeed-g6: Fix the GPIO memory size
ARM: dts: aspeed: s2600wf: Fix VGA memory region location
RDMA/core: Fix error return in _ib_modify_qp()
RDMA/rxe: Compute PSN windows correctly
x86/mm/ident_map: Check for errors from ident_pud_init()
ARM: p2v: fix handling of LPAE translation in BE mode
RDMA/rtrs-clt: Remove destroy_con_cq_qp in case route resolving failed
RDMA/rtrs-clt: Missing error from rtrs_rdma_conn_established
RDMA/rtrs-srv: Don't guard the whole __alloc_srv with srv_mutex
x86/apic: Fix x2apic enablement without interrupt remapping
ASoC: qcom: fix unsigned int bitwidth compared to less than zero
sched/deadline: Fix sched_dl_global_validate()
sched: Reenable interrupts in do_sched_yield()
drm/amdgpu: fix incorrect enum type
crypto: talitos - Endianess in current_desc_hdr()
crypto: talitos - Fix return type of current_desc_hdr()
crypto: inside-secure - Fix sizeof() mismatch
ASoC: sun4i-i2s: Fix lrck_period computation for I2S justified mode
drm/msm: Add missing stub definition
ARM: dts: aspeed: tiogapass: Remove vuart
drm/amdgpu: fix build_coefficients() argument
powerpc/64: Set up a kernel stack for secondaries before cpu_restore()
spi: img-spfi: fix reference leak in img_spfi_resume
f2fs: call f2fs_get_meta_page_retry for nat page
RDMA/mlx5: Fix corruption of reg_pages in mlx5_ib_rereg_user_mr()
perf test: Use generic event for expand_libpfm_events()
drm/msm/dp: DisplayPort PHY compliance tests fixup
drm/msm/dsi_pll_7nm: restore VCO rate during restore_state
drm/msm/dsi_pll_10nm: restore VCO rate during restore_state
drm/msm/dpu: fix clock scaling on non-sc7180 board
spi: spi-mem: fix reference leak in spi_mem_access_start
scsi: aacraid: Improve compat_ioctl handlers
pinctrl: core: Add missing #ifdef CONFIG_GPIOLIB
ASoC: pcm: DRAIN support reactivation
drm/bridge: tpd12s015: Fix irq registering in tpd12s015_probe
crypto: arm64/poly1305-neon - reorder PAC authentication with SP update
crypto: arm/aes-neonbs - fix usage of cbc(aes) fallback
crypto: caam - fix printing on xts fallback allocation error path
selinux: fix inode_doinit_with_dentry() LABEL_INVALID error handling
nl80211/cfg80211: fix potential infinite loop
spi: stm32: fix reference leak in stm32_spi_resume
bpf: Fix tests for local_storage
x86/mce: Correct the detection of invalid notifier priorities
drm/edid: Fix uninitialized variable in drm_cvt_modes()
ath11k: Initialize complete alpha2 for regulatory change
ath11k: Fix number of rules in filtered ETSI regdomain
ath11k: fix wmi init configuration
brcmfmac: Fix memory leak for unpaired brcmf_{alloc/free}
arm64: dts: exynos: Include common syscon restart/poweroff for Exynos7
arm64: dts: exynos: Correct psci compatible used on Exynos7
drm/panel: simple: Add flags to boe_nv133fhm_n61
Bluetooth: Fix null pointer dereference in hci_event_packet()
Bluetooth: Fix: LL PRivacy BLE device fails to connect
Bluetooth: hci_h5: fix memory leak in h5_close
spi: stm32-qspi: fix reference leak in stm32 qspi operations
spi: spi-ti-qspi: fix reference leak in ti_qspi_setup
spi: mt7621: fix missing clk_disable_unprepare() on error in mt7621_spi_probe
spi: tegra20-slink: fix reference leak in slink ops of tegra20
spi: tegra20-sflash: fix reference leak in tegra_sflash_resume
spi: tegra114: fix reference leak in tegra spi ops
spi: bcm63xx-hsspi: fix missing clk_disable_unprepare() on error in bcm63xx_hsspi_resume
spi: imx: fix reference leak in two imx operations
ASoC: qcom: common: Fix refcounting in qcom_snd_parse_of()
ath11k: Handle errors if peer creation fails
mwifiex: fix mwifiex_shutdown_sw() causing sw reset failure
drm/msm/a6xx: Clear shadow on suspend
drm/msm/a5xx: Clear shadow on suspend
firmware: tegra: fix strncpy()/strncat() confusion
drm/msm/dp: return correct connection status after suspend
drm/msm/dp: skip checking LINK_STATUS_UPDATED bit
drm/msm/dp: do not notify audio subsystem if sink doesn't support audio
selftests/run_kselftest.sh: fix dry-run typo
selftest/bpf: Add missed ip6ip6 test back
ASoC: wm8994: Fix PM disable depth imbalance on error
ASoC: wm8998: Fix PM disable depth imbalance on error
spi: sprd: fix reference leak in sprd_spi_remove
virtiofs fix leak in setup
ASoC: arizona: Fix a wrong free in wm8997_probe
RDMa/mthca: Work around -Wenum-conversion warning
ASoC: SOF: Intel: fix Kconfig dependency for SND_INTEL_DSP_CONFIG
arm64: dts: ti: k3-am65*/j721e*: Fix unit address format error for dss node
MIPS: BCM47XX: fix kconfig dependency bug for BCM47XX_BCMA
drm/amdgpu: fix compute queue priority if num_kcq is less than 4
soc: ti: omap-prm: Do not check rstst bit on deassert if already deasserted
crypto: Kconfig - CRYPTO_MANAGER_EXTRA_TESTS requires the manager
crypto: qat - fix status check in qat_hal_put_rel_rd_xfer()
firmware: arm_scmi: Fix missing destroy_workqueue()
drm/udl: Fix missing error code in udl_handle_damage()
staging: greybus: codecs: Fix reference counter leak in error handling
staging: gasket: interrupt: fix the missed eventfd_ctx_put() in gasket_interrupt.c
scripts: kernel-doc: Restore anonymous enum parsing
drm/amdkfd: Put ACPI table after using it
ionic: use mc sync for multicast filters
ionic: flatten calls to ionic_lif_rx_mode
ionic: change set_rx_mode from_ndo to can_sleep
media: tm6000: Fix sizeof() mismatches
media: platform: add missing put_device() call in mtk_jpeg_clk_init()
media: mtk-vcodec: add missing put_device() call in mtk_vcodec_init_dec_pm()
media: mtk-vcodec: add missing put_device() call in mtk_vcodec_release_dec_pm()
media: mtk-vcodec: add missing put_device() call in mtk_vcodec_init_enc_pm()
media: v4l2-fwnode: Return -EINVAL for invalid bus-type
media: v4l2-fwnode: v4l2_fwnode_endpoint_parse caller must init vep argument
media: ov5640: fix support of BT656 bus mode
media: staging: rkisp1: cap: fix runtime PM imbalance on error
media: cedrus: fix reference leak in cedrus_start_streaming
media: platform: add missing put_device() call in mtk_jpeg_probe() and mtk_jpeg_remove()
media: venus: core: change clk enable and disable order in resume and suspend
media: venus: core: vote for video-mem path
media: venus: core: vote with average bandwidth and peak bandwidth as zero
RDMA/cma: Add missing error handling of listen_id
ASoC: meson: fix COMPILE_TEST error
spi: dw: fix build error by selecting MULTIPLEXER
scsi: core: Fix VPD LUN ID designator priorities
media: venus: put dummy vote on video-mem path after last session release
media: solo6x10: fix missing snd_card_free in error handling case
video: fbdev: atmel_lcdfb: fix return error code in atmel_lcdfb_of_init()
mmc: sdhci: tegra: fix wrong unit with busy_timeout
drm/omap: dmm_tiler: fix return error code in omap_dmm_probe()
drm/meson: Free RDMA resources after tearing down DRM
drm/meson: Unbind all connectors on module removal
drm/meson: dw-hdmi: Register a callback to disable the regulator
drm/meson: dw-hdmi: Ensure that clocks are enabled before touching the TOP registers
ASoC: intel: SND_SOC_INTEL_KEEMBAY should depend on ARCH_KEEMBAY
iommu/vt-d: include conditionally on CONFIG_INTEL_IOMMU_SVM
Input: ads7846 - fix race that causes missing releases
Input: ads7846 - fix integer overflow on Rt calculation
Input: ads7846 - fix unaligned access on 7845
bus: mhi: core: Remove double locking from mhi_driver_remove()
bus: mhi: core: Fix null pointer access when parsing MHI configuration
usb/max3421: fix return error code in max3421_probe()
spi: mxs: fix reference leak in mxs_spi_probe
selftests/bpf: Fix broken riscv build
powerpc: Avoid broken GCC __attribute__((optimize))
powerpc/feature: Fix CPU_FTRS_ALWAYS by removing CPU_FTRS_GENERIC_32
ARM: dts: tacoma: Fix node vs reg mismatch for flash memory
Revert "powerpc/pseries/hotplug-cpu: Remove double free in error path"
powerpc/powernv/sriov: fix unsigned int win compared to less than zero
mfd: htc-i2cpld: Add the missed i2c_put_adapter() in htcpld_register_chip_i2c()
mfd: MFD_SL28CPLD should depend on ARCH_LAYERSCAPE
mfd: stmfx: Fix dev_err_probe() call in stmfx_chip_init()
mfd: cpcap: Fix interrupt regression with regmap clear_ack
EDAC/mce_amd: Use struct cpuinfo_x86.cpu_die_id for AMD NodeId
scsi: ufs: Avoid to call REQ_CLKS_OFF to CLKS_OFF
scsi: ufs: Fix clkgating on/off
rcu: Allow rcu_irq_enter_check_tick() from NMI
rcu,ftrace: Fix ftrace recursion
rcu/tree: Defer kvfree_rcu() allocation to a clean context
crypto: crypto4xx - Replace bitwise OR with logical OR in crypto4xx_build_pd
crypto: omap-aes - Fix PM disable depth imbalance in omap_aes_probe
crypto: sun8i-ce - fix two error path's memory leak
spi: fix resource leak for drivers without .remove callback
drm/meson: dw-hdmi: Disable clocks on driver teardown
drm/meson: dw-hdmi: Enable the iahb clock early enough
PCI: Disable MSI for Pericom PCIe-USB adapter
PCI: brcmstb: Initialize "tmp" before use
soc: ti: knav_qmss: fix reference leak in knav_queue_probe
soc: ti: Fix reference imbalance in knav_dma_probe
drivers: soc: ti: knav_qmss_queue: Fix error return code in knav_queue_probe
soc: qcom: initialize local variable
arm64: dts: qcom: sm8250: correct compatible for sm8250-mtp
arm64: dts: qcom: msm8916-samsung-a2015: Disable muic i2c pin bias
Input: omap4-keypad - fix runtime PM error handling
clk: meson: Kconfig: fix dependency for G12A
staging: mfd: hi6421-spmi-pmic: fix error return code in hi6421_spmi_pmic_probe()
ath11k: Fix the rx_filter flag setting for peer rssi stats
RDMA/cxgb4: Validate the number of CQEs
soundwire: Fix DEBUG_LOCKS_WARN_ON for uninitialized attribute
pinctrl: sunxi: fix irq bank map for the Allwinner A100 pin controller
memstick: fix a double-free bug in memstick_check
ARM: dts: at91: sam9x60: add pincontrol for USB Host
ARM: dts: at91: sama5d4_xplained: add pincontrol for USB Host
ARM: dts: at91: sama5d3_xplained: add pincontrol for USB Host
mmc: pxamci: Fix error return code in pxamci_probe
brcmfmac: fix error return code in brcmf_cfg80211_connect()
orinoco: Move context allocation after processing the skb
qtnfmac: fix error return code in qtnf_pcie_probe()
rsi: fix error return code in rsi_reset_card()
cw1200: fix missing destroy_workqueue() on error in cw1200_init_common
dmaengine: mv_xor_v2: Fix error return code in mv_xor_v2_probe()
arm64: dts: qcom: sdm845: Limit ipa iommu streams
leds: netxbig: add missing put_device() call in netxbig_leds_get_of_pdata()
leds: lp50xx: Fix an error handling path in 'lp50xx_probe_dt()'
leds: turris-omnia: check for LED_COLOR_ID_RGB instead LED_COLOR_ID_MULTI
arm64: tegra: Fix DT binding for IO High Voltage entry
RDMA/cma: Fix deadlock on &lock in rdma_cma_listen_on_all() error unwind
soundwire: qcom: Fix build failure when slimbus is module
drm/imx/dcss: fix rotations for Vivante tiled formats
media: siano: fix memory leak of debugfs members in smsdvb_hotplug
platform/x86: mlx-platform: Remove PSU EEPROM from default platform configuration
platform/x86: mlx-platform: Remove PSU EEPROM from MSN274x platform configuration
arm64: dts: qcom: sc7180: limit IPA iommu streams
RDMA/hns: Only record vlan info for HIP08
RDMA/hns: Fix missing fields in address vector
RDMA/hns: Avoid setting loopback indicator when smac is same as dmac
serial: 8250-mtk: Fix reference leak in mtk8250_probe
samples: bpf: Fix lwt_len_hist reusing previous BPF map
media: imx214: Fix stop streaming
mips: cdmm: fix use-after-free in mips_cdmm_bus_discover
media: max2175: fix max2175_set_csm_mode() error code
slimbus: qcom-ngd-ctrl: Avoid sending power requests without QMI
RDMA/core: Track device memory MRs
drm/mediatek: Use correct aliases name for ovl
HSI: omap_ssi: Don't jump to free ID in ssi_add_controller()
ARM: dts: Remove non-existent i2c1 from 98dx3236
arm64: dts: armada-3720-turris-mox: update ethernet-phy handle name
power: supply: bq25890: Use the correct range for IILIM register
arm64: dts: rockchip: Set dr_mode to "host" for OTG on rk3328-roc-cc
power: supply: max17042_battery: Fix current_{avg,now} hiding with no current sense
power: supply: axp288_charger: Fix HP Pavilion x2 10 DMI matching
power: supply: bq24190_charger: fix reference leak
genirq/irqdomain: Don't try to free an interrupt that has no mapping
arm64: dts: ls1028a: fix ENETC PTP clock input
arm64: dts: ls1028a: fix FlexSPI clock input
arm64: dts: freescale: sl28: combine SPI MTD partitions
phy: tegra: xusb: Fix usb_phy device driver field
arm64: dts: qcom: c630: Polish i2c-hid devices
arm64: dts: qcom: c630: Fix pinctrl pins properties
PCI: Bounds-check command-line resource alignment requests
PCI: Fix overflow in command-line resource alignment requests
PCI: iproc: Fix out-of-bound array accesses
PCI: iproc: Invalidate correct PAXB inbound windows
arm64: dts: meson: fix spi-max-frequency on Khadas VIM2
arm64: dts: meson-sm1: fix typo in opp table
soc: amlogic: canvas: add missing put_device() call in meson_canvas_get()
scsi: hisi_sas: Fix up probe error handling for v3 hw
scsi: pm80xx: Do not sleep in atomic context
spi: spi-fsl-dspi: Use max_native_cs instead of num_chipselect to set SPI_MCR
ARM: dts: at91: at91sam9rl: fix ADC triggers
RDMA/hns: Fix 0-length sge calculation error
RDMA/hns: Bugfix for calculation of extended sge
mailbox: arm_mhu_db: Fix mhu_db_shutdown by replacing kfree with devm_kfree
soundwire: master: use pm_runtime_set_active() on add
platform/x86: dell-smbios-base: Fix error return code in dell_smbios_init
ASoC: Intel: Boards: tgl_max98373: update TDM slot_width
media: max9271: Fix GPIO enable/disable
media: rdacm20: Enable GPIO1 explicitly
media: i2c: imx219: Selection compliance fixes
ath11k: Don't cast ath11k_skb_cb to ieee80211_tx_info.control
ath11k: Reset ath11k_skb_cb before setting new flags
ath11k: Fix an error handling path
ath10k: Fix the parsing error in service available event
ath10k: Fix an error handling path
ath10k: Release some resources in an error handling path
SUNRPC: rpc_wake_up() should wake up tasks in the correct order
NFSv4.2: condition READDIR's mask for security label based on LSM state
SUNRPC: xprt_load_transport() needs to support the netid "rdma6"
NFSv4: Fix the alignment of page data in the getdeviceinfo reply
net: sunrpc: Fix 'snprintf' return value check in 'do_xprt_debugfs'
lockd: don't use interval-based rebinding over TCP
NFS: switch nfsiod to be an UNBOUND workqueue.
selftests/seccomp: Update kernel config
vfio-pci: Use io_remap_pfn_range() for PCI IO memory
hwmon: (ina3221) Fix PM usage counter unbalance in ina3221_write_enable
f2fs: fix double free of unicode map
media: tvp5150: Fix wrong return value of tvp5150_parse_dt()
media: saa7146: fix array overflow in vidioc_s_audio()
powerpc/perf: Fix crash with is_sier_available when pmu is not set
powerpc/64: Fix an EMIT_BUG_ENTRY in head_64.S
powerpc/xmon: Fix build failure for 8xx
powerpc/perf: Fix to update radix_scope_qual in power10
powerpc/perf: Update the PMU group constraints for l2l3 events in power10
powerpc/perf: Fix the PMU group constraints for threshold events in power10
clocksource/drivers/orion: Add missing clk_disable_unprepare() on error path
clocksource/drivers/cadence_ttc: Fix memory leak in ttc_setup_clockevent()
clocksource/drivers/ingenic: Fix section mismatch
clocksource/drivers/riscv: Make RISCV_TIMER depends on RISCV_SBI
arm64: mte: fix prctl(PR_GET_TAGGED_ADDR_CTRL) if TCF0=NONE
iio: hrtimer-trigger: Mark hrtimer to expire in hard interrupt context
libbpf: Sanitise map names before pinning
ARM: dts: at91: sam9x60ek: remove bypass property
ARM: dts: at91: sama5d2: map securam as device
scripts: kernel-doc: fix parsing function-like typedefs
bpf: Fix bpf_put_raw_tracepoint()'s use of __module_address()
selftests/bpf: Fix invalid use of strncat in test_sockmap
pinctrl: falcon: add missing put_device() call in pinctrl_falcon_probe()
soc: rockchip: io-domain: Fix error return code in rockchip_iodomain_probe()
arm64: dts: rockchip: Fix UART pull-ups on rk3328
memstick: r592: Fix error return in r592_probe()
MIPS: Don't round up kernel sections size for memblock_add()
mt76: mt7663s: fix a possible ple quota underflow
mt76: mt7915: set fops_sta_stats.owner to THIS_MODULE
mt76: set fops_tx_stats.owner to THIS_MODULE
mt76: dma: fix possible deadlock running mt76_dma_cleanup
net/mlx5: Properly convey driver version to firmware
mt76: fix memory leak if device probing fails
mt76: fix tkip configuration for mt7615/7663 devices
ASoC: jz4740-i2s: add missed checks for clk_get()
ASoC: q6afe-clocks: Add missing parent clock rate
dm ioctl: fix error return code in target_message
ASoC: cros_ec_codec: fix uninitialized memory read
ASoC: atmel: mchp-spdifrx needs COMMON_CLK
ASoC: qcom: fix QDSP6 dependencies, attempt #3
phy: mediatek: allow compile-testing the hdmi phy
phy: renesas: rcar-gen3-usb2: disable runtime pm in case of failure
memory: ti-emif-sram: only build for ARMv7
memory: jz4780_nemc: Fix potential NULL dereference in jz4780_nemc_probe()
drm/msm: a5xx: Make preemption reset case reentrant
drm/msm: add IOMMU_SUPPORT dependency
clocksource/drivers/arm_arch_timer: Use stable count reader in erratum sne
clocksource/drivers/arm_arch_timer: Correct fault programming of CNTKCTL_EL1.EVNTI
cpufreq: ap806: Add missing MODULE_DEVICE_TABLE
cpufreq: highbank: Add missing MODULE_DEVICE_TABLE
cpufreq: mediatek: Add missing MODULE_DEVICE_TABLE
cpufreq: qcom: Add missing MODULE_DEVICE_TABLE
cpufreq: st: Add missing MODULE_DEVICE_TABLE
cpufreq: sun50i: Add missing MODULE_DEVICE_TABLE
cpufreq: loongson1: Add missing MODULE_ALIAS
cpufreq: scpi: Add missing MODULE_ALIAS
cpufreq: vexpress-spc: Add missing MODULE_ALIAS
cpufreq: imx: fix NVMEM_IMX_OCOTP dependency
macintosh/adb-iop: Always wait for reply message from IOP
macintosh/adb-iop: Send correct poll command
staging: bcm2835: fix vchiq_mmal dependencies
staging: greybus: audio: Fix possible leak free widgets in gbaudio_dapm_free_controls
spi: dw: Fix error return code in dw_spi_bt1_probe()
Bluetooth: btusb: Add the missed release_firmware() in btusb_mtk_setup_firmware()
Bluetooth: btmtksdio: Add the missed release_firmware() in mtk_setup_firmware()
Bluetooth: sco: Fix crash when using BT_SNDMTU/BT_RCVMTU option
block/rnbd-clt: Dynamically alloc buffer for pathname & blk_symlink_name
block/rnbd: fix a null pointer dereference on dev->blk_symlink_name
Bluetooth: btusb: Fix detection of some fake CSR controllers with a bcdDevice val of 0x0134
platform/x86: intel-vbtn: Fix SW_TABLET_MODE always reporting 1 on some HP x360 models
adm8211: fix error return code in adm8211_probe()
mtd: spi-nor: sst: fix BPn bits for the SST25VF064C
mtd: spi-nor: ignore errors in spi_nor_unlock_all()
mtd: spi-nor: atmel: remove global protection flag
mtd: spi-nor: atmel: fix unlock_all() for AT25FS010/040
arm64: dts: meson: g12b: odroid-n2: fix PHY deassert timing requirements
arm64: dts: meson: fix PHY deassert timing requirements
ARM: dts: meson: fix PHY deassert timing requirements
arm64: dts: meson: g12a: x96-max: fix PHY deassert timing requirements
arm64: dts: meson: g12b: w400: fix PHY deassert timing requirements
clk: fsl-sai: fix memory leak
scsi: qedi: Fix missing destroy_workqueue() on error in __qedi_probe
scsi: pm80xx: Fix error return in pm8001_pci_probe()
scsi: iscsi: Fix inappropriate use of put_device()
seq_buf: Avoid type mismatch for seq_buf_init
scsi: fnic: Fix error return code in fnic_probe()
platform/x86: mlx-platform: Fix item counter assignment for MSN2700, MSN24xx systems
platform/x86: mlx-platform: Fix item counter assignment for MSN2700/ComEx system
ARM: 9030/1: entry: omit FP emulation for UND exceptions taken in kernel mode
powerpc/pseries/hibernation: drop pseries_suspend_begin() from suspend ops
powerpc/pseries/hibernation: remove redundant cacheinfo update
powerpc/powermac: Fix low_sleep_handler with CONFIG_VMAP_STACK
drm/mediatek: avoid dereferencing a null hdmi_phy on an error message
ASoC: amd: change clk_get() to devm_clk_get() and add missed checks
coresight: remove broken __exit annotations
ASoC: max98390: Fix error codes in max98390_dsm_init()
powerpc/mm: sanity_check_fault() should work for all, not only BOOK3S
usb: ehci-omap: Fix PM disable depth umbalance in ehci_hcd_omap_probe
usb: oxu210hp-hcd: Fix memory leak in oxu_create
speakup: fix uninitialized flush_lock
nfsd: Fix message level for normal termination
NFSD: Fix 5 seconds delay when doing inter server copy
nfs_common: need lock during iterate through the list
x86/kprobes: Restore BTF if the single-stepping is cancelled
scsi: qla2xxx: Fix FW initialization error on big endian machines
scsi: qla2xxx: Fix N2N and NVMe connect retry failure
platform/chrome: cros_ec_spi: Don't overwrite spi::mode
misc: pci_endpoint_test: fix return value of error branch
bus: fsl-mc: add back accidentally dropped error check
bus: fsl-mc: fix error return code in fsl_mc_object_allocate()
fsi: Aspeed: Add mutex to protect HW access
s390/cio: fix use-after-free in ccw_device_destroy_console
iwlwifi: dbg-tlv: fix old length in is_trig_data_contained()
iwlwifi: mvm: hook up missing RX handlers
erofs: avoid using generic_block_bmap
clk: renesas: r8a779a0: Fix R and OSC clocks
can: m_can: m_can_config_endisable(): remove double clearing of clock stop request bit
powerpc/sstep: Emulate prefixed instructions only when CPU_FTR_ARCH_31 is set
powerpc/sstep: Cover new VSX instructions under CONFIG_VSX
slimbus: qcom: fix potential NULL dereference in qcom_slim_prg_slew()
ALSA: hda/hdmi: fix silent stream for first playback to DP
RDMA/core: Do not indicate device ready when device enablement fails
RDMA/uverbs: Fix incorrect variable type
remoteproc/mediatek: change MT8192 CFG register base
remoteproc/mtk_scp: surround DT device IDs with CONFIG_OF
remoteproc: q6v5-mss: fix error handling in q6v5_pds_enable
remoteproc: qcom: fix reference leak in adsp_start
remoteproc: qcom: pas: fix error handling in adsp_pds_enable
remoteproc: k3-dsp: Fix return value check in k3_dsp_rproc_of_get_memories()
remoteproc: qcom: Fix potential NULL dereference in adsp_init_mmio()
remoteproc/mediatek: unprepare clk if scp_before_load fails
clk: qcom: gcc-sc7180: Use floor ops for sdcc clks
clk: tegra: Fix duplicated SE clock entry
mtd: rawnand: gpmi: fix reference count leak in gpmi ops
mtd: rawnand: meson: Fix a resource leak in init
mtd: rawnand: gpmi: Fix the random DMA timeout issue
samples/bpf: Fix possible hang in xdpsock with multiple threads
fs: Handle I_DONTCACHE in iput_final() instead of generic_drop_inode()
extcon: max77693: Fix modalias string
crypto: atmel-i2c - select CONFIG_BITREVERSE
mac80211: don't set set TDLS STA bandwidth wider than possible
mac80211: fix a mistake check for rx_stats update
ASoC: wm_adsp: remove "ctl" from list on error in wm_adsp_create_control()
irqchip/alpine-msi: Fix freeing of interrupts on allocation error path
irqchip/ti-sci-inta: Fix printing of inta id on probe success
irqchip/ti-sci-intr: Fix freeing of irqs
dmaengine: ti: k3-udma: Correct normal channel offset when uchan_cnt is not 0
RDMA/hns: Limit the length of data copied between kernel and userspace
RDMA/hns: Normalization the judgment of some features
RDMA/hns: Do shift on traffic class when using RoCEv2
gpiolib: irq hooks: fix recursion in gpiochip_irq_unmask
ath11k: Fix incorrect tlvs in scan start command
irqchip/qcom-pdc: Fix phantom irq when changing between rising/falling
watchdog: armada_37xx: Add missing dependency on HAS_IOMEM
watchdog: sirfsoc: Add missing dependency on HAS_IOMEM
watchdog: sprd: remove watchdog disable from resume fail path
watchdog: sprd: check busy bit before new loading rather than after that
watchdog: Fix potential dereferencing of null pointer
ubifs: Fix error return code in ubifs_init_authentication()
um: Monitor error events in IRQ controller
um: tty: Fix handling of close in tty lines
um: chan_xterm: Fix fd leak
sunrpc: fix xs_read_xdr_buf for partial pages receive
RDMA/mlx5: Fix MR cache memory leak
RDMA/cma: Don't overwrite sgid_attr after device is released
nfc: s3fwrn5: Release the nfc firmware
drm: mxsfb: Silence -EPROBE_DEFER while waiting for bridge
powerpc/perf: Fix Threshold Event Counter Multiplier width for P10
powerpc/ps3: use dma_mapping_error()
perf test: Fix metric parsing test
drm/amdgpu: fix regression in vbios reservation handling on headless
mm/gup: reorganize internal_get_user_pages_fast()
mm/gup: prevent gup_fast from racing with COW during fork
mm/gup: combine put_compound_head() and unpin_user_page()
mm: memcg/slab: fix return of child memcg objcg for root memcg
mm: memcg/slab: fix use after free in obj_cgroup_charge
mm/rmap: always do TTU_IGNORE_ACCESS
sparc: fix handling of page table constructor failure
mm/vmalloc: Fix unlock order in s_stop()
mm/vmalloc.c: fix kasan shadow poisoning size
mm,memory_failure: always pin the page in madvise_inject_error
hugetlb: fix an error code in hugetlb_reserve_pages()
mm: don't wake kswapd prematurely when watermark boosting is disabled
proc: fix lookup in /proc/net subdirectories after setns(2)
checkpatch: fix unescaped left brace
s390/test_unwind: fix CALL_ON_STACK tests
lan743x: fix rx_napi_poll/interrupt ping-pong
ice, xsk: clear the status bits for the next_to_use descriptor
i40e, xsk: clear the status bits for the next_to_use descriptor
net: dsa: qca: ar9331: fix sleeping function called from invalid context bug
dpaa2-eth: fix the size of the mapped SGT buffer
net: bcmgenet: Fix a resource leak in an error handling path in the probe functin
net: mscc: ocelot: Fix a resource leak in the error handling path of the probe function
net: allwinner: Fix some resources leak in the error handling path of the probe and in the remove function
block/rnbd-clt: Get rid of warning regarding size argument in strlcpy
block/rnbd-clt: Fix possible memleak
NFS/pNFS: Fix a typo in ff_layout_resend_pnfs_read()
net: korina: fix return value
devlink: use _BITUL() macro instead of BIT() in the UAPI header
libnvdimm/label: Return -ENXIO for no slot in __blk_label_update
powerpc/32s: Fix cleanup_cpu_mmu_context() compile bug
watchdog: qcom: Avoid context switch in restart handler
watchdog: coh901327: add COMMON_CLK dependency
clk: ti: Fix memleak in ti_fapll_synth_setup
pwm: zx: Add missing cleanup in error path
pwm: lp3943: Dynamically allocate PWM chip base
pwm: imx27: Fix overflow for bigger periods
pwm: sun4i: Remove erroneous else branch
io_uring: cancel only requests of current task
tools build: Add missing libcap to test-all.bin target
perf record: Fix memory leak when using '--user-regs=?' to list registers
qlcnic: Fix error code in probe
nfp: move indirect block cleanup to flower app stop callback
vdpa/mlx5: Use write memory barrier after updating CQ index
virtio_ring: Cut and paste bugs in vring_create_virtqueue_packed()
virtio_net: Fix error code in probe()
virtio_ring: Fix two use after free bugs
vhost scsi: fix error return code in vhost_scsi_set_endpoint()
epoll: check for events when removing a timed out thread from the wait queue
clk: bcm: dvp: Add MODULE_DEVICE_TABLE()
clk: at91: sama7g5: fix compilation error
clk: at91: sam9x60: remove atmel,osc-bypass support
clk: s2mps11: Fix a resource leak in error handling paths in the probe function
clk: sunxi-ng: Make sure divider tables have sentinel
clk: vc5: Use "idt,voltage-microvolt" instead of "idt,voltage-microvolts"
kconfig: fix return value of do_error_if()
powerpc/boot: Fix build of dts/fsl
powerpc/smp: Add __init to init_big_cores()
ARM: 9044/1: vfp: use undef hook for VFP support detection
ARM: 9036/1: uncompress: Fix dbgadtb size parameter name
perf probe: Fix memory leak when synthesizing SDT probes
io_uring: fix racy IOPOLL flush overflow
io_uring: cancel reqs shouldn't kill overflow list
Smack: Handle io_uring kernel thread privileges
proc mountinfo: make splice available again
io_uring: fix io_cqring_events()'s noflush
io_uring: fix racy IOPOLL completions
io_uring: always let io_iopoll_complete() complete polled io
vfio/pci: Move dummy_resources_list init in vfio_pci_probe()
vfio/pci/nvlink2: Do not attempt NPU2 setup on POWER8NVL NPU
media: gspca: Fix memory leak in probe
io_uring: fix io_wqe->work_list corruption
io_uring: fix 0-iov read buffer select
io_uring: hold uring_lock while completing failed polled io in io_wq_submit_work()
io_uring: fix ignoring xa_store errors
io_uring: fix double io_uring free
io_uring: make ctx cancel on exit targeted to actual ctx
media: sunxi-cir: ensure IR is handled when it is continuous
media: netup_unidvb: Don't leak SPI master in probe error path
media: ipu3-cio2: Remove traces of returned buffers
media: ipu3-cio2: Return actual subdev format
media: ipu3-cio2: Serialise access to pad format
media: ipu3-cio2: Validate mbus format in setting subdev format
media: ipu3-cio2: Make the field on subdev format V4L2_FIELD_NONE
Input: cyapa_gen6 - fix out-of-bounds stack access
ALSA: hda/ca0132 - Change Input Source enum strings.
ACPI: NFIT: Fix input validation of bus-family
PM: ACPI: PCI: Drop acpi_pm_set_bridge_wakeup()
Revert "ACPI / resources: Use AE_CTRL_TERMINATE to terminate resources walks"
ACPI: PNP: compare the string length in the matching_id()
ALSA: hda: Fix regressions on clear and reconfig sysfs
ALSA: hda/ca0132 - Fix AE-5 rear headphone pincfg.
ALSA: hda/realtek: make bass spk volume adjustable on a yoga laptop
ALSA: hda/realtek - Enable headset mic of ASUS X430UN with ALC256
ALSA: hda/realtek - Enable headset mic of ASUS Q524UQK with ALC255
ALSA: hda/realtek - Add supported for more Lenovo ALC285 Headset Button
ALSA: pcm: oss: Fix a few more UBSAN fixes
ALSA/hda: apply jack fixup for the Acer Veriton N4640G/N6640G/N2510G
ALSA: hda/realtek: Add quirk for MSI-GP73
ALSA: hda/realtek: Apply jack fixup for Quanta NL3
ALSA: hda/realtek: Remove dummy lineout on Acer TravelMate P648/P658
ALSA: hda/realtek - Supported Dell fixed type headset
ALSA: usb-audio: Add VID to support native DSD reproduction on FiiO devices
ALSA: usb-audio: Disable sample read check if firmware doesn't give back
ALSA: usb-audio: Add alias entry for ASUS PRIME TRX40 PRO-S
ALSA: core: memalloc: add page alignment for iram
s390/smp: perform initial CPU reset also for SMT siblings
s390/kexec_file: fix diag308 subcode when loading crash kernel
s390/idle: add missing mt_cycles calculation
s390/idle: fix accounting with machine checks
s390/dasd: fix hanging device offline processing
s390/dasd: prevent inconsistent LCU device data
s390/dasd: fix list corruption of pavgroup group list
s390/dasd: fix list corruption of lcu list
binder: add flag to clear buffer on txn complete
ASoC: cx2072x: Fix doubly definitions of Playback and Capture streams
ASoC: AMD Renoir - add DMI table to avoid the ACP mic probe (broken BIOS)
ASoC: AMD Raven/Renoir - fix the PCI probe (PCI revision)
staging: comedi: mf6x4: Fix AI end-of-conversion detection
z3fold: simplify freeing slots
z3fold: stricter locking and more careful reclaim
perf/x86/intel: Add event constraint for CYCLE_ACTIVITY.STALLS_MEM_ANY
perf/x86/intel: Fix rtm_abort_event encoding on Ice Lake
perf/x86/intel/lbr: Fix the return type of get_lbr_cycles()
powerpc/perf: Exclude kernel samples while counting events in user space.
cpufreq: intel_pstate: Use most recent guaranteed performance values
crypto: ecdh - avoid unaligned accesses in ecdh_set_secret()
crypto: arm/aes-ce - work around Cortex-A57/A72 silion errata
m68k: Fix WARNING splat in pmac_zilog driver
Documentation: seqlock: s/LOCKTYPE/LOCKNAME/g
EDAC/i10nm: Use readl() to access MMIO registers
EDAC/amd64: Fix PCI component registration
cpuset: fix race between hotplug work and later CPU offline
dyndbg: fix use before null check
USB: serial: mos7720: fix parallel-port state restore
USB: serial: digi_acceleport: fix write-wakeup deadlocks
USB: serial: keyspan_pda: fix dropped unthrottle interrupts
USB: serial: keyspan_pda: fix write deadlock
USB: serial: keyspan_pda: fix stalled writes
USB: serial: keyspan_pda: fix write-wakeup use-after-free
USB: serial: keyspan_pda: fix tx-unthrottle use-after-free
USB: serial: keyspan_pda: fix write unthrottling
btrfs: do not shorten unpin len for caching block groups
btrfs: update last_byte_to_unpin in switch_commit_roots
btrfs: fix race when defragmenting leads to unnecessary IO
ext4: fix an IS_ERR() vs NULL check
ext4: fix a memory leak of ext4_free_data
ext4: fix deadlock with fs freezing and EA inodes
ext4: don't remount read-only with errors=continue on reboot
RISC-V: Fix usage of memblock_enforce_memory_limit
arm64: dts: ti: k3-am65: mark dss as dma-coherent
arm64: dts: marvell: keep SMMU disabled by default for Armada 7040 and 8040
KVM: arm64: Introduce handling of AArch32 TTBCR2 traps
KVM: x86: reinstate vendor-agnostic check on SPEC_CTRL cpuid bits
KVM: SVM: Remove the call to sev_platform_status() during setup
iommu/arm-smmu: Allow implementation specific write_s2cr
iommu/arm-smmu-qcom: Read back stream mappings
iommu/arm-smmu-qcom: Implement S2CR quirk
ARM: dts: pandaboard: fix pinmux for gpio user button of Pandaboard ES
ARM: dts: at91: sama5d2: fix CAN message ram offset and size
ARM: tegra: Populate OPP table for Tegra20 Ventana
xprtrdma: Fix XDRBUF_SPARSE_PAGES support
powerpc/32: Fix vmap stack - Properly set r1 before activating MMU on syscall too
powerpc: Fix incorrect stw{, ux, u, x} instructions in __set_pte_at
powerpc/rtas: Fix typo of ibm,open-errinjct in RTAS filter
powerpc/bitops: Fix possible undefined behaviour with fls() and fls64()
powerpc/feature: Add CPU_FTR_NOEXECUTE to G2_LE
powerpc/xmon: Change printk() to pr_cont()
powerpc/8xx: Fix early debug when SMC1 is relocated
powerpc/mm: Fix verification of MMU_FTR_TYPE_44x
powerpc/powernv/npu: Do not attempt NPU2 setup on POWER8NVL NPU
powerpc/powernv/memtrace: Don't leak kernel memory to user space
powerpc/powernv/memtrace: Fix crashing the kernel when enabling concurrently
ovl: make ioctl() safe
ima: Don't modify file descriptor mode on the fly
um: Remove use of asprinf in umid.c
um: Fix time-travel mode
ceph: fix race in concurrent __ceph_remove_cap invocations
SMB3: avoid confusing warning message on mount to Azure
SMB3.1.1: remove confusing mount warning when no SPNEGO info on negprot rsp
SMB3.1.1: do not log warning message if server doesn't populate salt
ubifs: wbuf: Don't leak kernel memory to flash
jffs2: Fix GC exit abnormally
jffs2: Fix ignoring mounting options problem during remounting
fsnotify: generalize handle_inode_event()
inotify: convert to handle_inode_event() interface
fsnotify: fix events reported to watching parent and child
jfs: Fix array index bounds check in dbAdjTree
drm/panfrost: Fix job timeout handling
drm/panfrost: Move the GPU reset bits outside the timeout handler
platform/x86: mlx-platform: remove an unused variable
drm/amdgpu: only set DP subconnector type on DP and eDP connectors
drm/amd/display: Fix memory leaks in S3 resume
drm/dp_aux_dev: check aux_dev before use in drm_dp_aux_dev_get_by_minor()
drm/i915: Fix mismatch between misplaced vma check and vma insert
iio: ad_sigma_delta: Don't put SPI transfer buffer on the stack
spi: pxa2xx: Fix use-after-free on unbind
spi: spi-sh: Fix use-after-free on unbind
spi: atmel-quadspi: Fix use-after-free on unbind
spi: spi-mtk-nor: Don't leak SPI master in probe error path
spi: ar934x: Don't leak SPI master in probe error path
spi: davinci: Fix use-after-free on unbind
spi: fsl: fix use of spisel_boot signal on MPC8309
spi: gpio: Don't leak SPI master in probe error path
spi: mxic: Don't leak SPI master in probe error path
spi: npcm-fiu: Disable clock in probe error path
spi: pic32: Don't leak DMA channels in probe error path
spi: rb4xx: Don't leak SPI master in probe error path
spi: rpc-if: Fix use-after-free on unbind
spi: sc18is602: Don't leak SPI master in probe error path
spi: spi-geni-qcom: Fix use-after-free on unbind
spi: spi-qcom-qspi: Fix use-after-free on unbind
spi: st-ssc4: Fix unbalanced pm_runtime_disable() in probe error path
spi: synquacer: Disable clock in probe error path
spi: mt7621: Disable clock in probe error path
spi: mt7621: Don't leak SPI master in probe error path
spi: atmel-quadspi: Disable clock in probe error path
spi: atmel-quadspi: Fix AHB memory accesses
soc: qcom: smp2p: Safely acquire spinlock without IRQs
mtd: spinand: Fix OOB read
mtd: parser: cmdline: Fix parsing of part-names with colons
mtd: core: Fix refcounting for unpartitioned MTDs
mtd: rawnand: qcom: Fix DMA sync on FLASH_STATUS register read
mtd: rawnand: meson: fix meson_nfc_dma_buffer_release() arguments
scsi: qla2xxx: Fix crash during driver load on big endian machines
scsi: lpfc: Fix invalid sleeping context in lpfc_sli4_nvmet_alloc()
scsi: lpfc: Fix scheduling call while in softirq context in lpfc_unreg_rpi
scsi: lpfc: Re-fix use after free in lpfc_rq_buf_free()
openat2: reject RESOLVE_BENEATH|RESOLVE_IN_ROOT
iio: buffer: Fix demux update
iio: adc: rockchip_saradc: fix missing clk_disable_unprepare() on error in rockchip_saradc_resume
iio: imu: st_lsm6dsx: fix edge-trigger interrupts
iio:light:rpr0521: Fix timestamp alignment and prevent data leak.
iio:light:st_uvis25: Fix timestamp alignment and prevent data leak.
iio:magnetometer:mag3110: Fix alignment and data leak issues.
iio:pressure:mpl3115: Force alignment of buffer
iio:imu:bmi160: Fix too large a buffer.
iio:imu:bmi160: Fix alignment and data leak issues
iio:adc:ti-ads124s08: Fix buffer being too long.
iio:adc:ti-ads124s08: Fix alignment and data leak issues.
md/cluster: block reshape with remote resync job
md/cluster: fix deadlock when node is doing resync job
pinctrl: sunxi: Always call chained_irq_{enter, exit} in sunxi_pinctrl_irq_handler
clk: ingenic: Fix divider calculation with div tables
clk: mvebu: a3700: fix the XTAL MODE pin to MPP1_9
clk: tegra: Do not return 0 on failure
counter: microchip-tcb-capture: Fix CMR value check
device-dax/core: Fix memory leak when rmmod dax.ko
dma-buf/dma-resv: Respect num_fences when initializing the shared fence list.
driver: core: Fix list corruption after device_del()
xen-blkback: set ring->xenblkd to NULL after kthread_stop()
xen/xenbus: Allow watches discard events before queueing
xen/xenbus: Add 'will_handle' callback support in xenbus_watch_path()
xen/xenbus/xen_bus_type: Support will_handle watch callback
xen/xenbus: Count pending messages for each watch
xenbus/xenbus_backend: Disallow pending watch messages
memory: jz4780_nemc: Fix an error pointer vs NULL check in probe()
memory: renesas-rpc-if: Fix a node reference leak in rpcif_probe()
memory: renesas-rpc-if: Return correct value to the caller of rpcif_manual_xfer()
memory: renesas-rpc-if: Fix unbalanced pm_runtime_enable in rpcif_{enable,disable}_rpm
libnvdimm/namespace: Fix reaping of invalidated block-window-namespace labels
platform/x86: intel-vbtn: Allow switch events on Acer Switch Alpha 12
tracing: Disable ftrace selftests when any tracer is running
mt76: add back the SUPPORTS_REORDERING_BUFFER flag
of: fix linker-section match-table corruption
PCI: Fix pci_slot_release() NULL pointer dereference
regulator: axp20x: Fix DLDO2 voltage control register mask for AXP22x
remoteproc: sysmon: Ensure remote notification ordering
thermal/drivers/cpufreq_cooling: Update cpufreq_state only if state has changed
rtc: ep93xx: Fix NULL pointer dereference in ep93xx_rtc_read_time
Revert: "ring-buffer: Remove HAVE_64BIT_ALIGNED_ACCESS"
null_blk: Fix zone size initialization
null_blk: Fail zone append to conventional zones
drm/edid: fix objtool warning in drm_cvt_modes()
x86/CPU/AMD: Save AMD NodeId as cpu_die_id
Linux 5.10.4Signed-off-by: Greg Kroah-Hartman
Change-Id: I25209e79d8b9faf5382087955a29b7404bdefe38 -
[ Upstream commit 57efa1fe5957694fa541c9062de0a127f0b9acb0 ]
Since commit 70e806e4e645 ("mm: Do early cow for pinned pages during
fork() for ptes") pages under a FOLL_PIN will not be write protected
during COW for fork. This means that pages returned from
pin_user_pages(FOLL_WRITE) should not become write protected while the pin
is active.However, there is a small race where get_user_pages_fast(FOLL_PIN) can
establish a FOLL_PIN at the same time copy_present_page() is write
protecting it:CPU 0 CPU 1
get_user_pages_fast()
internal_get_user_pages_fast()
copy_page_range()
pte_alloc_map_lock()
copy_present_page()
atomic_read(has_pinned) == 0
page_maybe_dma_pinned() == false
atomic_set(has_pinned, 1);
gup_pgd_range()
gup_pte_range()
pte_t pte = gup_get_pte(ptep)
pte_access_permitted(pte)
try_grab_compound_head()
pte = pte_wrprotect(pte)
set_pte_at();
pte_unmap_unlock()
// GUP now returns with a write protected pageThe first attempt to resolve this by using the write protect caused
problems (and was missing a barrrier), see commit f3c64eda3e50 ("mm: avoid
early COW write protect games during fork()")Instead wrap copy_p4d_range() with the write side of a seqcount and check
the read side around gup_pgd_range(). If there is a collision then
get_user_pages_fast() fails and falls back to slow GUP.Slow GUP is safe against this race because copy_page_range() is only
called while holding the exclusive side of the mmap_lock on the src
mm_struct.[akpm@linux-foundation.org: coding style fixes]
Link: https://lore.kernel.org/r/CAHk-=wi=iCnYCARbPGjkVJu9eyYeZ13N64tZYLdOB8CP5Q_PLw@mail.gmail.comLink: https://lkml.kernel.org/r/2-v4-908497cf359a+4782-gup_fork_jgg@nvidia.com
Fixes: f3c64eda3e50 ("mm: avoid early COW write protect games during fork()")
Signed-off-by: Jason Gunthorpe
Suggested-by: Linus Torvalds
Reviewed-by: John Hubbard
Reviewed-by: Jan Kara
Reviewed-by: Peter Xu
Acked-by: "Ahmed S. Darwish" [seqcount_t parts]
Cc: Andrea Arcangeli
Cc: "Aneesh Kumar K.V"
Cc: Christoph Hellwig
Cc: Hugh Dickins
Cc: Jann Horn
Cc: Kirill Shutemov
Cc: Kirill Tkhai
Cc: Leon Romanovsky
Cc: Michal Hocko
Cc: Oleg Nesterov
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
Signed-off-by: Sasha Levin
21 Oct, 2020
1 commit
-
…scm/linux/kernel/git/tip/tip") into android-mainline
Steps on the way to 5.10-rc1
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I5570b629e4f548b0b625a9b117516d59f569b122
13 Oct, 2020
1 commit
-
Pull x86 PASID updates from Borislav Petkov:
"Initial support for sharing virtual addresses between the CPU and
devices which doesn't need pinning of pages for DMA anymore.Add support for the command submission to devices using new x86
instructions like ENQCMD{,S} and MOVDIR64B. In addition, add support
for process address space identifiers (PASIDs) which are referenced by
those command submission instructions along with the handling of the
PASID state on context switch as another extended state.Work by Fenghua Yu, Ashok Raj, Yu-cheng Yu and Dave Jiang"
* tag 'x86_pasid_for_5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/asm: Add an enqcmds() wrapper for the ENQCMDS instruction
x86/asm: Carve out a generic movdir64b() helper for general usage
x86/mmu: Allocate/free a PASID
x86/cpufeatures: Mark ENQCMD as disabled when configured out
mm: Add a pasid member to struct mm_struct
x86/msr-index: Define an IA32_PASID MSR
x86/fpu/xstate: Add supervisor PASID state for ENQCMD
x86/cpufeatures: Enumerate ENQCMD and ENQCMDS instructions
Documentation/x86: Add documentation for SVA (Shared Virtual Addressing)
iommu/vt-d: Change flags type to unsigned int in binding mm
drm, iommu: Change type of pasid to u32
28 Sep, 2020
2 commits
-
Linux 5.9-rc7
Signed-off-by: Greg Kroah-Hartman
Change-Id: I27a128f784a1570ef0181a480c612cc294a645a7 -
(Commit message majorly collected from Jason Gunthorpe)
Reduce the chance of false positive from page_maybe_dma_pinned() by
keeping track if the mm_struct has ever been used with pin_user_pages().
This allows cases that might drive up the page ref_count to avoid any
penalty from handling dma_pinned pages.Future work is planned, to provide a more sophisticated solution, likely
to turn it into a real counter. For now, make it atomic_t but use it as
a boolean for simplicity.Suggested-by: Jason Gunthorpe
Signed-off-by: Peter Xu
Signed-off-by: Linus Torvalds
18 Sep, 2020
1 commit
-
A PASID is shared by all threads in a process. So the logical place to
keep track of it is in the mm_struct. Both ARM and x86 would use this
PASID.[ bp: Massage commit message. ]
Suggested-by: Christoph Hellwig
Signed-off-by: Fenghua Yu
Signed-off-by: Borislav Petkov
Reviewed-by: Tony Luck
Link: https://lkml.kernel.org/r/1600187413-163670-8-git-send-email-fenghua.yu@intel.com
17 Aug, 2020
1 commit
-
…ux-block") into android-mainline
Steps on the way to 5.9-rc1
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I904678b5c31139b25fb49ee67cbacb4721a3c7bc
15 Aug, 2020
1 commit
-
Patch series "THP prep patches".
These are some generic cleanups and improvements, which I would like
merged into mmotm soon. The first one should be a performance improvement
for all users of compound pages, and the others are aimed at getting code
to compile away when CONFIG_TRANSPARENT_HUGEPAGE is disabled (ie small
systems). Also better documented / less confusing than the current prefix
mixture of compound, hpage and thp.This patch (of 7):
This removes a few instructions from functions which need to know how many
pages are in a compound page. The storage used is either page->mapping on
64-bit or page->index on 32-bit. Both of these are fine to overlay on
tail pages.Signed-off-by: Matthew Wilcox (Oracle)
Signed-off-by: Andrew Morton
Reviewed-by: William Kucharski
Reviewed-by: Zi Yan
Cc: David Hildenbrand
Cc: Mike Kravetz
Cc: "Kirill A. Shutemov"
Link: http://lkml.kernel.org/r/20200629151959.15779-1-willy@infradead.org
Link: http://lkml.kernel.org/r/20200629151959.15779-2-willy@infradead.org
Signed-off-by: Linus Torvalds
08 Aug, 2020
2 commits
-
…kernel/git/sre/linux-power-supply") into android-mainline
Merges along the way to 5.9-rc1
resolves conflicts in:
Documentation/ABI/testing/sysfs-class-power
drivers/power/supply/power_supply_sysfs.c
fs/crypto/inline_crypt.cSigned-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: Ia087834f54fb4e5269d68c3c404747ceed240701 -
Allocate and release memory to store obj_cgroup pointers for each non-root
slab page. Reuse page->mem_cgroup pointer to store a pointer to the
allocated space.This commit temporarily increases the memory footprint of the kernel memory
accounting. To store obj_cgroup pointers we'll need a place for an
objcg_pointer for each allocated object. However, the following patches
in the series will enable sharing of slab pages between memory cgroups,
which will dramatically increase the total slab utilization. And the final
memory footprint will be significantly smaller than before.To distinguish between obj_cgroups and memcg pointers in case when it's
not obvious which one is used (as in page_cgroup_ino()), let's always set
the lowest bit in the obj_cgroup case. The original obj_cgroups
pointer is marked to be ignored by kmemleak, which otherwise would
report a memory leak for each allocated vector.Signed-off-by: Roman Gushchin
Signed-off-by: Andrew Morton
Reviewed-by: Vlastimil Babka
Reviewed-by: Shakeel Butt
Cc: Christoph Lameter
Cc: Johannes Weiner
Cc: Michal Hocko
Cc: Tejun Heo
Link: http://lkml.kernel.org/r/20200623174037.3951353-8-guro@fb.com
Signed-off-by: Linus Torvalds
24 Jun, 2020
1 commit
-
…cm/linux/kernel/git/linkinjeon/exfat") into android-mainline
Steps on the way to 5.8-rc1.
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I4bc42f572167ea2f815688b4d1eb6124b6d260d4
12 Jun, 2020
1 commit
-
Tiny merge resolutions along the way to 5.8-rc1.
Change-Id: I24b3cca28ed36f32c92b6374dae5d7f006d3bced
Signed-off-by: Greg Kroah-Hartman
10 Jun, 2020
2 commits
-
Convert comments that reference mmap_sem to reference mmap_lock instead.
[akpm@linux-foundation.org: fix up linux-next leftovers]
[akpm@linux-foundation.org: s/lockaphore/lock/, per Vlastimil]
[akpm@linux-foundation.org: more linux-next fixups, per Michel]Signed-off-by: Michel Lespinasse
Signed-off-by: Andrew Morton
Reviewed-by: Vlastimil Babka
Reviewed-by: Daniel Jordan
Cc: Davidlohr Bueso
Cc: David Rientjes
Cc: Hugh Dickins
Cc: Jason Gunthorpe
Cc: Jerome Glisse
Cc: John Hubbard
Cc: Laurent Dufour
Cc: Liam Howlett
Cc: Matthew Wilcox
Cc: Peter Zijlstra
Cc: Ying Han
Link: http://lkml.kernel.org/r/20200520052908.204642-13-walken@google.com
Signed-off-by: Linus Torvalds -
Rename the mmap_sem field to mmap_lock. Any new uses of this lock should
now go through the new mmap locking api. The mmap_lock is still
implemented as a rwsem, though this could change in the future.[akpm@linux-foundation.org: fix it for mm-gup-might_lock_readmmap_sem-in-get_user_pages_fast.patch]
Signed-off-by: Michel Lespinasse
Signed-off-by: Andrew Morton
Reviewed-by: Vlastimil Babka
Reviewed-by: Davidlohr Bueso
Reviewed-by: Daniel Jordan
Cc: David Rientjes
Cc: Hugh Dickins
Cc: Jason Gunthorpe
Cc: Jerome Glisse
Cc: John Hubbard
Cc: Laurent Dufour
Cc: Liam Howlett
Cc: Matthew Wilcox
Cc: Peter Zijlstra
Cc: Ying Han
Link: http://lkml.kernel.org/r/20200520052908.204642-11-walken@google.com
Signed-off-by: Linus Torvalds
03 Jun, 2020
1 commit
-
Change it to inline function to make callers use the proper argument. And
no need for it to be macro per Andrew's comment [1].[1] https://lore.kernel.org/lkml/20200518221235.1fa32c38e5766113f78e3f0d@linux-foundation.org/
Signed-off-by: Guoqing Jiang
Signed-off-by: Andrew Morton
Reviewed-by: Andrew Morton
Link: http://lkml.kernel.org/r/20200525203149.18802-1-guoqing.jiang@cloud.ionos.com
Signed-off-by: Linus Torvalds
10 Apr, 2020
1 commit
-
…x") into android-mainline
Baby steps on the way to 5.7-rc1
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I89095a90046a14eab189aab257a75b3dfdb5b1db
08 Apr, 2020
1 commit
-
The parameter of remap_pfn_range() @pfn passed from the caller is actually
a page-frame number converted by corresponding physical address of kernel
memory, the original comment is ambiguous that may mislead the users.Meanwhile, there is an ambiguous typo "VMM" in the comment of
vm_area_struct. So fixing them will make the code more readable.Signed-off-by: chenqiwu
Signed-off-by: Andrew Morton
Reviewed-by: Andrew Morton
Link: http://lkml.kernel.org/r/1583026921-15279-1-git-send-email-qiwuchen55@gmail.com
Signed-off-by: Linus Torvalds
07 Apr, 2020
1 commit
-
…ux/kernel/git/mtd/linux") into android-mainline
Baby steps on the way to 5.7-rc1
Change-Id: I136ebb5242e3499873dcd5f5178ad7f68512d11c
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
03 Apr, 2020
1 commit
-
For huge pages (and in fact, any compound page), the GUP_PIN_COUNTING_BIAS
scheme tends to overflow too easily, each tail page increments the head
page->_refcount by GUP_PIN_COUNTING_BIAS (1024). That limits the number
of huge pages that can be pinned.This patch removes that limitation, by using an exact form of pin counting
for compound pages of order > 1. The "order > 1" is required because this
approach uses the 3rd struct page in the compound page, and order 1
compound pages only have two pages, so that won't work there.A new struct page field, hpage_pinned_refcount, has been added, replacing
a padding field in the union (so no new space is used).This enhancement also has a useful side effect: huge pages and compound
pages (of order > 1) do not suffer from the "potential false positives"
problem that is discussed in the page_dma_pinned() comment block. That is
because these compound pages have extra space for tracking things, so they
get exact pin counts instead of overloading page->_refcount.Documentation/core-api/pin_user_pages.rst is updated accordingly.
Suggested-by: Jan Kara
Signed-off-by: John Hubbard
Signed-off-by: Andrew Morton
Reviewed-by: Jan Kara
Acked-by: Kirill A. Shutemov
Cc: Ira Weiny
Cc: Jérôme Glisse
Cc: "Matthew Wilcox (Oracle)"
Cc: Al Viro
Cc: Christoph Hellwig
Cc: Dan Williams
Cc: Dave Chinner
Cc: Jason Gunthorpe
Cc: Jonathan Corbet
Cc: Michal Hocko
Cc: Mike Kravetz
Cc: Shuah Khan
Cc: Vlastimil Babka
Link: http://lkml.kernel.org/r/20200211001536.1027652-8-jhubbard@nvidia.com
Signed-off-by: Linus Torvalds
08 Feb, 2020
1 commit
-
…x/kernel/git/andersson/remoteproc") into android-mainline
Another "small" merge point to handle conflicts in a sane way.
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I5dc2f5f11275b29f3c9b5b8d4dd59864ceb6faf9
04 Feb, 2020
1 commit
-
Pull drm ttm/mm updates from Dave Airlie:
"Thomas Hellstrom has some more changes to the TTM layer that needed a
patch to the mm subsystem.This adds a new mm API vmf_insert_mixed_prot to avoid an ugly hack
that has limitations in the TTM layer"* tag 'drm-next-2020-02-04' of git://anongit.freedesktop.org/drm/drm:
mm, drm/ttm: Fix vm page protection handling
mm: Add a vmf_insert_mixed_prot() function
03 Feb, 2020
1 commit
-
…inux/kernel/git/rdma/rdma") into android-mainline
Baby steps in the 5.6-rc1 merge cycle to make things easier to review
and debug.Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I0fa183764fd1adbde44e8181f0b3df6cff4da18b
16 Jan, 2020
1 commit
-
The TTM module today uses a hack to be able to set a different page
protection than struct vm_area_struct::vm_page_prot. To be able to do
this properly, add the needed vm functionality as vmf_insert_mixed_prot().Cc: Andrew Morton
Cc: Michal Hocko
Cc: "Matthew Wilcox (Oracle)"
Cc: "Kirill A. Shutemov"
Cc: Ralph Campbell
Cc: "Jérôme Glisse"
Cc: "Christian König"
Signed-off-by: Thomas Hellstrom
Acked-by: Christian König
Acked-by: Michal Hocko
Acked-by: Andrew Morton
14 Jan, 2020
1 commit
-
The name mmu_notifier_mm implies that the thing is a mm_struct pointer,
and is difficult to abbreviate. The struct is actually holding the
interval tree and hlist containing the notifiers subscribed to a mm.Use 'subscriptions' as the variable name for this struct instead of the
really terrible and misleading 'mmn_mm'.Signed-off-by: Jason Gunthorpe
11 Nov, 2019
1 commit
-
Linux 5.4-rc7
Signed-off-by: Greg Kroah-Hartman
Change-Id: I505207a0a6f68ccc3519d7f190d8faf25d9d479a
07 Nov, 2019
1 commit
-
We have a usecase to use tmpfs as QEMU memory backend and we would like
to take the advantage of THP as well. But, our test shows the EPT is
not PMD mapped even though the underlying THP are PMD mapped on host.
The number showed by /sys/kernel/debug/kvm/largepage is much less than
the number of PMD mapped shmem pages as the below:7f2778200000-7f2878200000 rw-s 00000000 00:14 262232 /dev/shm/qemu_back_mem.mem.Hz2hSf (deleted)
Size: 4194304 kB
[snip]
AnonHugePages: 0 kB
ShmemPmdMapped: 579584 kB
[snip]
Locked: 0 kBcat /sys/kernel/debug/kvm/largepages
12And some benchmarks do worse than with anonymous THPs.
By digging into the code we figured out that commit 127393fbe597 ("mm:
thp: kvm: fix memory corruption in KVM with THP enabled") checks if
there is a single PTE mapping on the page for anonymous THP when setting
up EPT map. But the _mapcount < 0 check doesn't work for page cache THP
since every subpage of page cache THP would get _mapcount inc'ed once it
is PMD mapped, so PageTransCompoundMap() always returns false for page
cache THP. This would prevent KVM from setting up PMD mapped EPT entry.So we need handle page cache THP correctly. However, when page cache
THP's PMD gets split, kernel just remove the map instead of setting up
PTE map like what anonymous THP does. Before KVM calls get_user_pages()
the subpages may get PTE mapped even though it is still a THP since the
page cache THP may be mapped by other processes at the mean time.Checking its _mapcount and whether the THP has PTE mapped or not.
Although this may report some false negative cases (PTE mapped by other
processes), it looks not trivial to make this accurate.With this fix /sys/kernel/debug/kvm/largepage would show reasonable
pages are PMD mapped by EPT as the below:7fbeaee00000-7fbfaee00000 rw-s 00000000 00:14 275464 /dev/shm/qemu_back_mem.mem.SKUvat (deleted)
Size: 4194304 kB
[snip]
AnonHugePages: 0 kB
ShmemPmdMapped: 557056 kB
[snip]
Locked: 0 kBcat /sys/kernel/debug/kvm/largepages
271And the benchmarks are as same as anonymous THPs.
[yang.shi@linux.alibaba.com: v4]
Link: http://lkml.kernel.org/r/1571865575-42913-1-git-send-email-yang.shi@linux.alibaba.com
Link: http://lkml.kernel.org/r/1571769577-89735-1-git-send-email-yang.shi@linux.alibaba.com
Fixes: dd78fedde4b9 ("rmap: support file thp")
Signed-off-by: Yang Shi
Reported-by: Gang Deng
Tested-by: Gang Deng
Suggested-by: Hugh Dickins
Acked-by: Kirill A. Shutemov
Cc: Andrea Arcangeli
Cc: Matthew Wilcox
Cc: [4.8+]
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
03 Oct, 2019
1 commit
-
Linux 5.4-rc1
Signed-off-by: Greg Kroah-Hartman
Change-Id: I15eec52df70f829acf81ff614a1c2a5fb443a4e0
02 Oct, 2019
1 commit
-
To make the 5.4-rc1 merge easier, merge at a prerelease point in time
before the final release happens.Signed-off-by: Greg Kroah-Hartman
Change-Id: If613d657fd0abf9910c5bf3435a745f01b89765e
29 Sep, 2019
1 commit
-
Pull scheduler fixes from Ingo Molnar:
- Apply a number of membarrier related fixes and cleanups, which fixes
a use-after-free race in the membarrier code- Introduce proper RCU protection for tasks on the runqueue - to get
rid of the subtle task_rcu_dereference() interface that was easy to
get wrong- Misc fixes, but also an EAS speedup
* 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
sched/fair: Avoid redundant EAS calculation
sched/core: Remove double update_max_interval() call on CPU startup
sched/core: Fix preempt_schedule() interrupt return comment
sched/fair: Fix -Wunused-but-set-variable warnings
sched/core: Fix migration to invalid CPU in __set_cpus_allowed_ptr()
sched/membarrier: Return -ENOMEM to userspace on memory allocation failure
sched/membarrier: Skip IPIs when mm->mm_users == 1
selftests, sched/membarrier: Add multi-threaded test
sched/membarrier: Fix p->mm->membarrier_state racy load
sched/membarrier: Call sync_core only before usermode for same mm
sched/membarrier: Remove redundant check
sched/membarrier: Fix private expedited registration check
tasks, sched/core: RCUify the assignment of rq->curr
tasks, sched/core: With a grace period after finish_task_switch(), remove unnecessary code
tasks, sched/core: Ensure tasks are available for a grace period after leaving the runqueue
tasks: Add a count of task RCU users
sched/core: Convert vcpu_is_preempted() from macro to an inline function
sched/fair: Remove unused cfs_rq_clock_task() function
25 Sep, 2019
2 commits
-
The membarrier_state field is located within the mm_struct, which
is not guaranteed to exist when used from runqueue-lock-free iteration
on runqueues by the membarrier system call.Copy the membarrier_state from the mm_struct into the scheduler runqueue
when the scheduler switches between mm.When registering membarrier for mm, after setting the registration bit
in the mm membarrier state, issue a synchronize_rcu() to ensure the
scheduler observes the change. In order to take care of the case
where a runqueue keeps executing the target mm without swapping to
other mm, iterate over each runqueue and issue an IPI to copy the
membarrier_state from the mm_struct into each runqueue which have the
same mm which state has just been modified.Move the mm membarrier_state field closer to pgd in mm_struct to use
a cache line already touched by the scheduler switch_mm.The membarrier_execve() (now membarrier_exec_mmap) hook now needs to
clear the runqueue's membarrier state in addition to clear the mm
membarrier state, so move its implementation into the scheduler
membarrier code so it can access the runqueue structure.Add memory barrier in membarrier_exec_mmap() prior to clearing
the membarrier state, ensuring memory accesses executed prior to exec
are not reordered with the stores clearing the membarrier state.As suggested by Linus, move all membarrier.c RCU read-side locks outside
of the for each cpu loops.Suggested-by: Linus Torvalds
Signed-off-by: Mathieu Desnoyers
Signed-off-by: Peter Zijlstra (Intel)
Cc: Chris Metcalf
Cc: Christoph Lameter
Cc: Eric W. Biederman
Cc: Kirill Tkhai
Cc: Mike Galbraith
Cc: Oleg Nesterov
Cc: Paul E. McKenney
Cc: Peter Zijlstra
Cc: Russell King - ARM Linux admin
Cc: Thomas Gleixner
Link: https://lkml.kernel.org/r/20190919173705.2181-5-mathieu.desnoyers@efficios.com
Signed-off-by: Ingo Molnar -
Currently THP deferred split shrinker is not memcg aware, this may cause
premature OOM with some configuration. For example the below test would
run into premature OOM easily:$ cgcreate -g memory:thp
$ echo 4G > /sys/fs/cgroup/memory/thp/memory/limit_in_bytes
$ cgexec -g memory:thp transhuge-stress 4000transhuge-stress comes from kernel selftest.
It is easy to hit OOM, but there are still a lot THP on the deferred split
queue, memcg direct reclaim can't touch them since the deferred split
shrinker is not memcg aware.Convert deferred split shrinker memcg aware by introducing per memcg
deferred split queue. The THP should be on either per node or per memcg
deferred split queue if it belongs to a memcg. When the page is
immigrated to the other memcg, it will be immigrated to the target memcg's
deferred split queue too.Reuse the second tail page's deferred_list for per memcg list since the
same THP can't be on multiple deferred split queues.[yang.shi@linux.alibaba.com: simplify deferred split queue dereference per Kirill Tkhai]
Link: http://lkml.kernel.org/r/1566496227-84952-5-git-send-email-yang.shi@linux.alibaba.com
Link: http://lkml.kernel.org/r/1565144277-36240-5-git-send-email-yang.shi@linux.alibaba.com
Signed-off-by: Yang Shi
Acked-by: Kirill A. Shutemov
Reviewed-by: Kirill Tkhai
Cc: Johannes Weiner
Cc: Michal Hocko
Cc: "Kirill A . Shutemov"
Cc: Hugh Dickins
Cc: Shakeel Butt
Cc: David Rientjes
Cc: Qian Cai
Cc: Vladimir Davydov
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
23 Sep, 2019
1 commit
-
To make the 5.4-rc1 merge easier, merge at a prerelease point in time
before the final release happens.Signed-off-by: Greg Kroah-Hartman
Change-Id: I29b683c837ed1a3324644dbf9bf863f30740cd0b
26 Aug, 2019
1 commit
-
Linux 5.3-rc5
Signed-off-by: Greg Kroah-Hartman
Change-Id: Ibfaea1b9aca9f04a59def096f327c2afbd0cb296
22 Aug, 2019
1 commit
-
From rdma.git
Jason Gunthorpe says:
====================
This is a collection of general cleanups for ODP to clarify some of the
flows around umem creation and use of the interval tree.
====================The branch is based on v5.3-rc5 due to dependencies, and is being taken
into hmm.git due to dependencies in the next patches.* odp_fixes:
RDMA/mlx5: Use odp instead of mr->umem in pagefault_mr
RDMA/mlx5: Use ib_umem_start instead of umem.address
RDMA/core: Make invalidate_range a device operation
RDMA/odp: Use kvcalloc for the dma_list and page_list
RDMA/odp: Check for overflow when computing the umem_odp end
RDMA/odp: Provide ib_umem_odp_release() to undo the allocs
RDMA/odp: Split creating a umem_odp from ib_umem_get
RDMA/odp: Make the three ways to create a umem_odp clear
RMDA/odp: Consolidate umem_odp initialization
RDMA/odp: Make it clearer when a umem is an implicit ODP umem
RDMA/odp: Iterate over the whole rbtree directly
RDMA/odp: Use the common interval tree library instead of generic
RDMA/mlx5: Fix MR npages calculation for IB_ACCESS_HUGETLBSigned-off-by: Jason Gunthorpe
20 Aug, 2019
1 commit
-
This is a significant simplification, it eliminates all the remaining
'hmm' stuff in mm_struct, eliminates krefing along the critical notifier
paths, and takes away all the ugly locking and abuse of page_table_lock.mmu_notifier_get() provides the single struct hmm per struct mm which
eliminates mm->hmm.It also directly guarantees that no mmu_notifier op callback is callable
while concurrent free is possible, this eliminates all the krefs inside
the mmu_notifier callbacks.The remaining krefs in the range code were overly cautious, drivers are
already not permitted to free the mirror while a range exists.Link: https://lore.kernel.org/r/20190806231548.25242-6-jgg@ziepe.ca
Reviewed-by: Christoph Hellwig
Reviewed-by: Ralph Campbell
Tested-by: Ralph Campbell
Signed-off-by: Jason Gunthorpe
14 Aug, 2019
1 commit
-
Patch series "mm/hmm: fixes for device private page migration", v3.
Testing the latest linux git tree turned up a few bugs with page
migration to and from ZONE_DEVICE private and anonymous pages.
Hopefully it clarifies how ZONE_DEVICE private struct page uses the same
mapping and index fields from the source anonymous page mapping.This patch (of 3):
Struct page for ZONE_DEVICE private pages uses the page->mapping and and
page->index fields while the source anonymous pages are migrated to
device private memory. This is so rmap_walk() can find the page when
migrating the ZONE_DEVICE private page back to system memory.
ZONE_DEVICE pmem backed fsdax pages also use the page->mapping and
page->index fields when files are mapped into a process address space.Add comments to struct page and remove the unused "_zd_pad_1" field to
make this more clear.Link: http://lkml.kernel.org/r/20190724232700.23327-2-rcampbell@nvidia.com
Signed-off-by: Ralph Campbell
Reviewed-by: John Hubbard
Cc: Matthew Wilcox
Cc: Vlastimil Babka
Cc: Christoph Lameter
Cc: Dave Hansen
Cc: Jérôme Glisse
Cc: "Kirill A . Shutemov"
Cc: Lai Jiangshan
Cc: Martin Schwidefsky
Cc: Pekka Enberg
Cc: Randy Dunlap
Cc: Andrey Ryabinin
Cc: Christoph Hellwig
Cc: Jason Gunthorpe
Cc: Andrew Morton
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
24 Jul, 2019
1 commit
-
Linus 5.3-rc1 release
Signed-off-by: Greg Kroah-Hartman
Change-Id: Ic171e37d4c21ffa495240c5538852bbb5a9dcce8
15 Jul, 2019
1 commit
-
Pull HMM updates from Jason Gunthorpe:
"Improvements and bug fixes for the hmm interface in the kernel:- Improve clarity, locking and APIs related to the 'hmm mirror'
feature merged last cycle. In linux-next we now see AMDGPU and
nouveau to be using this API.- Remove old or transitional hmm APIs. These are hold overs from the
past with no users, or APIs that existed only to manage cross tree
conflicts. There are still a few more of these cleanups that didn't
make the merge window cut off.- Improve some core mm APIs:
- export alloc_pages_vma() for driver use
- refactor into devm_request_free_mem_region() to manage
DEVICE_PRIVATE resource reservations
- refactor duplicative driver code into the core dev_pagemap
struct- Remove hmm wrappers of improved core mm APIs, instead have drivers
use the simplified API directly- Remove DEVICE_PUBLIC
- Simplify the kconfig flow for the hmm users and core code"
* tag 'for-linus-hmm' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma: (42 commits)
mm: don't select MIGRATE_VMA_HELPER from HMM_MIRROR
mm: remove the HMM config option
mm: sort out the DEVICE_PRIVATE Kconfig mess
mm: simplify ZONE_DEVICE page private data
mm: remove hmm_devmem_add
mm: remove hmm_vma_alloc_locked_page
nouveau: use devm_memremap_pages directly
nouveau: use alloc_page_vma directly
PCI/P2PDMA: use the dev_pagemap internal refcount
device-dax: use the dev_pagemap internal refcount
memremap: provide an optional internal refcount in struct dev_pagemap
memremap: replace the altmap_valid field with a PGMAP_ALTMAP_VALID flag
memremap: remove the data field in struct dev_pagemap
memremap: add a migrate_to_ram method to struct dev_pagemap_ops
memremap: lift the devmap_enable manipulation into devm_memremap_pages
memremap: pass a struct dev_pagemap to ->kill and ->cleanup
memremap: move dev_pagemap callbacks into a separate structure
memremap: validate the pagemap type passed to devm_memremap_pages
mm: factor out a devm_request_free_mem_region helper
mm: export alloc_pages_vma
...
13 Jul, 2019
1 commit
-
The field is only used in swap code.
Link: http://lkml.kernel.org/r/20190503190500.GA30589@avx2
Signed-off-by: Alexey Dobriyan
Acked-by: Michal Hocko
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
