Run the script,
$ ../build/gki/add_EXPORT_SYMBOL_GPL < abi_gki_aarch64_qcom_whitelist
This will export all the required symbols that are in this kernel.
Signed-off-by: Will McVicker <willmcvicker@google.com>
Bug: 153886473
Test: compile
Change-Id: I703509d75104cd86f472481346e3efbd235121ab
-----BEGIN PGP SIGNATURE-----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=Ekyt
-----END PGP SIGNATURE-----
Merge 4.19.89 into android-4.19
Changes in 4.19.89
rsi: release skb if rsi_prepare_beacon fails
arm64: tegra: Fix 'active-low' warning for Jetson TX1 regulator
sparc64: implement ioremap_uc
lp: fix sparc64 LPSETTIMEOUT ioctl
usb: gadget: u_serial: add missing port entry locking
tty: serial: fsl_lpuart: use the sg count from dma_map_sg
tty: serial: msm_serial: Fix flow control
serial: pl011: Fix DMA ->flush_buffer()
serial: serial_core: Perform NULL checks for break_ctl ops
serial: ifx6x60: add missed pm_runtime_disable
autofs: fix a leak in autofs_expire_indirect()
RDMA/hns: Correct the value of HNS_ROCE_HEM_CHUNK_LEN
iwlwifi: pcie: don't consider IV len in A-MSDU
exportfs_decode_fh(): negative pinned may become positive without the parent locked
audit_get_nd(): don't unlock parent too early
NFC: nxp-nci: Fix NULL pointer dereference after I2C communication error
xfrm: release device reference for invalid state
Input: cyttsp4_core - fix use after free bug
sched/core: Avoid spurious lock dependencies
perf/core: Consistently fail fork on allocation failures
ALSA: pcm: Fix stream lock usage in snd_pcm_period_elapsed()
drm/sun4i: tcon: Set min division of TCON0_DCLK to 1.
selftests: kvm: fix build with glibc >= 2.30
rsxx: add missed destroy_workqueue calls in remove
net: ep93xx_eth: fix mismatch of request_mem_region in remove
i2c: core: fix use after free in of_i2c_notify
serial: core: Allow processing sysrq at port unlock time
cxgb4vf: fix memleak in mac_hlist initialization
iwlwifi: mvm: synchronize TID queue removal
iwlwifi: trans: Clear persistence bit when starting the FW
iwlwifi: mvm: Send non offchannel traffic via AP sta
ARM: 8813/1: Make aligned 2-byte getuser()/putuser() atomic on ARMv6+
audit: Embed key into chunk
netfilter: nf_tables: don't use position attribute on rule replacement
ARC: IOC: panic if kernel was started with previously enabled IOC
net/mlx5: Release resource on error flow
clk: sunxi-ng: a64: Fix gate bit of DSI DPHY
ice: Fix NVM mask defines
dlm: fix possible call to kfree() for non-initialized pointer
ARM: dts: exynos: Fix LDO13 min values on Odroid XU3/XU4/HC1
extcon: max8997: Fix lack of path setting in USB device mode
net: ethernet: ti: cpts: correct debug for expired txq skb
rtc: s3c-rtc: Avoid using broken ALMYEAR register
rtc: max77686: Fix the returned value in case of error in 'max77686_rtc_read_time()'
i40e: don't restart nway if autoneg not supported
virtchnl: Fix off by one error
clk: rockchip: fix rk3188 sclk_smc gate data
clk: rockchip: fix rk3188 sclk_mac_lbtest parameter ordering
ARM: dts: rockchip: Fix rk3288-rock2 vcc_flash name
dlm: fix missing idr_destroy for recover_idr
MIPS: SiByte: Enable ZONE_DMA32 for LittleSur
net: dsa: mv88e6xxx: Work around mv886e6161 SERDES missing MII_PHYSID2
scsi: zfcp: update kernel message for invalid FCP_CMND length, it's not the CDB
scsi: zfcp: drop default switch case which might paper over missing case
drivers: soc: Allow building the amlogic drivers without ARCH_MESON
bus: ti-sysc: Fix getting optional clocks in clock_roles
ARM: dts: imx6: RDU2: fix eGalax touchscreen node
crypto: ecc - check for invalid values in the key verification test
crypto: bcm - fix normal/non key hash algorithm failure
arm64: dts: zynqmp: Fix node names which contain "_"
pinctrl: qcom: ssbi-gpio: fix gpio-hog related boot issues
Staging: iio: adt7316: Fix i2c data reading, set the data field
firmware: raspberrypi: Fix firmware calls with large buffers
mm/vmstat.c: fix NUMA statistics updates
clk: rockchip: fix I2S1 clock gate register for rk3328
clk: rockchip: fix ID of 8ch clock of I2S1 for rk3328
sctp: count sk_wmem_alloc by skb truesize in sctp_packet_transmit
regulator: Fix return value of _set_load() stub
USB: serial: f81534: fix reading old/new IC config
xfs: extent shifting doesn't fully invalidate page cache
net-next/hinic:fix a bug in set mac address
net-next/hinic: fix a bug in rx data flow
ice: Fix return value from NAPI poll
ice: Fix possible NULL pointer de-reference
iomap: FUA is wrong for DIO O_DSYNC writes into unwritten extents
iomap: sub-block dio needs to zeroout beyond EOF
iomap: dio data corruption and spurious errors when pipes fill
iomap: readpages doesn't zero page tail beyond EOF
iw_cxgb4: only reconnect with MPAv1 if the peer aborts
MIPS: OCTEON: octeon-platform: fix typing
net/smc: use after free fix in smc_wr_tx_put_slot()
math-emu/soft-fp.h: (_FP_ROUND_ZERO) cast 0 to void to fix warning
nds32: Fix the items of hwcap_str ordering issue.
rtc: max8997: Fix the returned value in case of error in 'max8997_rtc_read_alarm()'
rtc: dt-binding: abx80x: fix resistance scale
ARM: dts: exynos: Use Samsung SoC specific compatible for DWC2 module
media: coda: fix memory corruption in case more than 32 instances are opened
media: pulse8-cec: return 0 when invalidating the logical address
media: cec: report Vendor ID after initialization
iwlwifi: fix cfg structs for 22000 with different RF modules
ravb: Clean up duplex handling
net/ipv6: re-do dad when interface has IFF_NOARP flag change
dmaengine: coh901318: Fix a double-lock bug
dmaengine: coh901318: Remove unused variable
dmaengine: dw-dmac: implement dma protection control setting
net: qualcomm: rmnet: move null check on dev before dereferecing it
selftests/powerpc: Allocate base registers
selftests/powerpc: Skip test instead of failing
usb: dwc3: debugfs: Properly print/set link state for HS
usb: dwc3: don't log probe deferrals; but do log other error codes
ACPI: fix acpi_find_child_device() invocation in acpi_preset_companion()
f2fs: fix to account preflush command for noflush_merge mode
f2fs: fix count of seg_freed to make sec_freed correct
f2fs: change segment to section in f2fs_ioc_gc_range
ARM: dts: rockchip: Fix the PMU interrupt number for rv1108
ARM: dts: rockchip: Assign the proper GPIO clocks for rv1108
f2fs: fix to allow node segment for GC by ioctl path
sparc: Fix JIT fused branch convergance.
sparc: Correct ctx->saw_frame_pointer logic.
nvme: Free ctrl device name on init failure
dma-mapping: fix return type of dma_set_max_seg_size()
slimbus: ngd: Fix build error on x86
altera-stapl: check for a null key before strcasecmp'ing it
serial: imx: fix error handling in console_setup
i2c: imx: don't print error message on probe defer
clk: meson: Fix GXL HDMI PLL fractional bits width
gpu: host1x: Fix syncpoint ID field size on Tegra186
lockd: fix decoding of TEST results
sctp: increase sk_wmem_alloc when head->truesize is increased
iommu/amd: Fix line-break in error log reporting
ASoC: rsnd: tidyup registering method for rsnd_kctrl_new()
ARM: dts: sun4i: Fix gpio-keys warning
ARM: dts: sun4i: Fix HDMI output DTC warning
ARM: dts: sun5i: a10s: Fix HDMI output DTC warning
ARM: dts: r8a779[01]: Disable unconnected LVDS encoders
ARM: dts: sun7i: Fix HDMI output DTC warning
ARM: dts: sun8i: a23/a33: Fix OPP DTC warnings
ARM: dts: sun8i: v3s: Change pinctrl nodes to avoid warning
dlm: NULL check before kmem_cache_destroy is not needed
ARM: debug: enable UART1 for socfpga Cyclone5
can: xilinx: fix return type of ndo_start_xmit function
nfsd: fix a warning in __cld_pipe_upcall()
bpf: btf: implement btf_name_valid_identifier()
bpf: btf: check name validity for various types
tools: bpftool: fix a bitfield pretty print issue
ASoC: au8540: use 64-bit arithmetic instead of 32-bit
ARM: OMAP1/2: fix SoC name printing
arm64: dts: meson-gxl-libretech-cc: fix GPIO lines names
arm64: dts: meson-gxbb-nanopi-k2: fix GPIO lines names
arm64: dts: meson-gxbb-odroidc2: fix GPIO lines names
arm64: dts: meson-gxl-khadas-vim: fix GPIO lines names
net/x25: fix called/calling length calculation in x25_parse_address_block
net/x25: fix null_x25_address handling
tools/bpf: make libbpf _GNU_SOURCE friendly
clk: mediatek: Drop __init from mtk_clk_register_cpumuxes()
clk: mediatek: Drop more __init markings for driver probe
soc: renesas: r8a77970-sysc: Correct names of A2DP/A2CN power domains
soc: renesas: r8a77980-sysc: Correct names of A2DP[01] power domains
soc: renesas: r8a77980-sysc: Correct A3VIP[012] power domain hierarchy
kbuild: disable dtc simple_bus_reg warnings by default
tcp: make tcp_space() aware of socket backlog
ARM: dts: mmp2: fix the gpio interrupt cell number
ARM: dts: realview-pbx: Fix duplicate regulator nodes
tcp: fix off-by-one bug on aborting window-probing socket
tcp: fix SNMP under-estimation on failed retransmission
tcp: fix SNMP TCP timeout under-estimation
modpost: skip ELF local symbols during section mismatch check
kbuild: fix single target build for external module
mtd: fix mtd_oobavail() incoherent returned value
ARM: dts: pxa: clean up USB controller nodes
clk: meson: meson8b: fix the offset of vid_pll_dco's N value
clk: sunxi-ng: h3/h5: Fix CSI_MCLK parent
clk: qcom: Fix MSM8998 resets
media: cxd2880-spi: fix probe when dvb_attach fails
ARM: dts: realview: Fix some more duplicate regulator nodes
dlm: fix invalid cluster name warning
net/mlx4_core: Fix return codes of unsupported operations
pstore/ram: Avoid NULL deref in ftrace merging failure path
powerpc/math-emu: Update macros from GCC
clk: renesas: r8a77990: Correct parent clock of DU
clk: renesas: r8a77995: Correct parent clock of DU
MIPS: OCTEON: cvmx_pko_mem_debug8: use oldest forward compatible definition
nfsd: Return EPERM, not EACCES, in some SETATTR cases
media: uvcvideo: Abstract streaming object lifetime
tty: serial: qcom_geni_serial: Fix softlock
ARM: dts: sun8i: h3: Fix the system-control register range
tty: Don't block on IO when ldisc change is pending
media: stkwebcam: Bugfix for wrong return values
firmware: qcom: scm: fix compilation error when disabled
clk: qcom: gcc-msm8998: Disable halt check of UFS clocks
sctp: frag_point sanity check
soc: renesas: r8a77990-sysc: Fix initialization order of 3DG-{A,B}
mlxsw: spectrum_router: Relax GRE decap matching check
IB/hfi1: Ignore LNI errors before DC8051 transitions to Polling state
IB/hfi1: Close VNIC sdma_progress sleep window
mlx4: Use snprintf instead of complicated strcpy
usb: mtu3: fix dbginfo in qmu_tx_zlp_error_handler
clk: renesas: rcar-gen3: Set state when registering SD clocks
ASoC: max9867: Fix power management
ARM: dts: sunxi: Fix PMU compatible strings
ARM: dts: am335x-pdu001: Fix polarity of card detection input
media: vimc: fix start stream when link is disabled
net: aquantia: fix RSS table and key sizes
sched/fair: Scale bandwidth quota and period without losing quota/period ratio precision
fuse: verify nlink
fuse: verify attributes
ALSA: hda/realtek - Enable internal speaker of ASUS UX431FLC
ALSA: hda/realtek - Enable the headset-mic on a Xiaomi's laptop
ALSA: hda/realtek - Dell headphone has noise on unmute for ALC236
ALSA: pcm: oss: Avoid potential buffer overflows
ALSA: hda - Add mute led support for HP ProBook 645 G4
Input: synaptics - switch another X1 Carbon 6 to RMI/SMbus
Input: synaptics-rmi4 - re-enable IRQs in f34v7_do_reflash
Input: synaptics-rmi4 - don't increment rmiaddr for SMBus transfers
Input: goodix - add upside-down quirk for Teclast X89 tablet
coresight: etm4x: Fix input validation for sysfs.
Input: Fix memory leak in psxpad_spi_probe
x86/mm/32: Sync only to VMALLOC_END in vmalloc_sync_all()
x86/PCI: Avoid AMD FCH XHCI USB PME# from D0 defect
xfrm interface: fix memory leak on creation
xfrm interface: avoid corruption on changelink
xfrm interface: fix list corruption for x-netns
xfrm interface: fix management of phydev
CIFS: Fix NULL-pointer dereference in smb2_push_mandatory_locks
CIFS: Fix SMB2 oplock break processing
tty: vt: keyboard: reject invalid keycodes
can: slcan: Fix use-after-free Read in slcan_open
kernfs: fix ino wrap-around detection
jbd2: Fix possible overflow in jbd2_log_space_left()
drm/msm: fix memleak on release
drm/i810: Prevent underflow in ioctl
arm64: dts: exynos: Revert "Remove unneeded address space mapping for soc node"
KVM: arm/arm64: vgic: Don't rely on the wrong pending table
KVM: x86: do not modify masked bits of shared MSRs
KVM: x86: fix presentation of TSX feature in ARCH_CAPABILITIES
KVM: x86: Grab KVM's srcu lock when setting nested state
crypto: crypto4xx - fix double-free in crypto4xx_destroy_sdr
crypto: atmel-aes - Fix IV handling when req->nbytes < ivsize
crypto: af_alg - cast ki_complete ternary op to int
crypto: ccp - fix uninitialized list head
crypto: ecdh - fix big endian bug in ECC library
crypto: user - fix memory leak in crypto_report
spi: atmel: Fix CS high support
mwifiex: update set_mac_address logic
can: ucan: fix non-atomic allocation in completion handler
RDMA/qib: Validate ->show()/store() callbacks before calling them
iomap: Fix pipe page leakage during splicing
thermal: Fix deadlock in thermal thermal_zone_device_check
vcs: prevent write access to vcsu devices
binder: Fix race between mmap() and binder_alloc_print_pages()
binder: Handle start==NULL in binder_update_page_range()
ALSA: hda - Fix pending unsol events at shutdown
md/raid0: Fix an error message in raid0_make_request()
watchdog: aspeed: Fix clock behaviour for ast2600
perf script: Fix invalid LBR/binary mismatch error
splice: don't read more than available pipe space
iomap: partially revert 4721a601099 (simulated directio short read on EFAULT)
xfs: add missing error check in xfs_prepare_shift()
ASoC: rsnd: fixup MIX kctrl registration
KVM: x86: fix out-of-bounds write in KVM_GET_EMULATED_CPUID (CVE-2019-19332)
net: qrtr: fix memort leak in qrtr_tun_write_iter
appletalk: Fix potential NULL pointer dereference in unregister_snap_client
appletalk: Set error code if register_snap_client failed
Linux 4.19.89
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: Ie3fa59adde9a7e9a6d4684de0e95de14a8b83d0b
commit e23f568aa63f64cd6b355094224cc9356c0f696b upstream.
When the 32bit ino wraps around, kernfs increments the generation
number to distinguish reused ino instances. The wrap-around detection
tests whether the allocated ino is lower than what the cursor but the
cursor is pointing to the next ino to allocate so the condition never
triggers.
Fix it by remembering the last ino and comparing against that.
Signed-off-by: Tejun Heo <tj@kernel.org>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Fixes: 4a3ef68aca ("kernfs: implement i_generation")
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: stable@vger.kernel.org # v4.14+
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-----BEGIN PGP SIGNATURE-----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=EUxi
-----END PGP SIGNATURE-----
Merge 4.19.85 into android-4.19
Changes in 4.19.85
KVM: x86: introduce is_pae_paging
MIPS: BCM63XX: fix switch core reset on BCM6368
scsi: core: Handle drivers which set sg_tablesize to zero
ax88172a: fix information leak on short answers
ipmr: Fix skb headroom in ipmr_get_route().
net: gemini: add missed free_netdev
net: usb: qmi_wwan: add support for Foxconn T77W968 LTE modules
slip: Fix memory leak in slip_open error path
ALSA: usb-audio: Fix missing error check at mixer resolution test
ALSA: usb-audio: not submit urb for stopped endpoint
ALSA: usb-audio: Fix incorrect NULL check in create_yamaha_midi_quirk()
ALSA: usb-audio: Fix incorrect size check for processing/extension units
Btrfs: fix log context list corruption after rename exchange operation
Input: ff-memless - kill timer in destroy()
Input: synaptics-rmi4 - fix video buffer size
Input: synaptics-rmi4 - disable the relative position IRQ in the F12 driver
Input: synaptics-rmi4 - do not consume more data than we have (F11, F12)
Input: synaptics-rmi4 - clear IRQ enables for F54
Input: synaptics-rmi4 - destroy F54 poller workqueue when removing
IB/hfi1: Ensure full Gen3 speed in a Gen4 system
IB/hfi1: Use a common pad buffer for 9B and 16B packets
i2c: acpi: Force bus speed to 400KHz if a Silead touchscreen is present
ecryptfs_lookup_interpose(): lower_dentry->d_inode is not stable
ecryptfs_lookup_interpose(): lower_dentry->d_parent is not stable either
net: ethernet: dwmac-sun8i: Use the correct function in exit path
iommu/vt-d: Fix QI_DEV_IOTLB_PFSID and QI_DEV_EIOTLB_PFSID macros
mm: mempolicy: fix the wrong return value and potential pages leak of mbind
mm: memcg: switch to css_tryget() in get_mem_cgroup_from_mm()
mm: hugetlb: switch to css_tryget() in hugetlb_cgroup_charge_cgroup()
mmc: sdhci-of-at91: fix quirk2 overwrite
iio: adc: max9611: explicitly cast gain_selectors
tee: optee: take DT status property into account
ath10k: fix kernel panic by moving pci flush after napi_disable
iio: dac: mcp4922: fix error handling in mcp4922_write_raw
clk: sunxi-ng: h6: fix PWM gate/reset offset
soundwire: Initialize completion for defer messages
soundwire: intel: Fix uninitialized adev deref
arm64: dts: allwinner: a64: Orange Pi Win: Fix SD card node
arm64: dts: allwinner: a64: Olinuxino: fix DRAM voltage
arm64: dts: allwinner: a64: NanoPi-A64: Fix DCDC1 voltage
ALSA: pcm: signedness bug in snd_pcm_plug_alloc()
soc/tegra: pmc: Fix pad voltage configuration for Tegra186
arm64: dts: tegra210-p2180: Correct sdmmc4 vqmmc-supply
y2038: make do_gettimeofday() and get_seconds() inline
ARM: dts: rcar: Correct SATA device sizes to 2 MiB
ARM: dts: at91/trivial: Fix USART1 definition for at91sam9g45
rtc: sysfs: fix NULL check in rtc_add_groups()
rtc: rv8803: fix the rv8803 id in the OF table
remoteproc/davinci: Use %zx for formating size_t
extcon: cht-wc: Return from default case to avoid warnings
cfg80211: Avoid regulatory restore when COUNTRY_IE_IGNORE is set
ALSA: seq: Do error checks at creating system ports
ath10k: skip resetting rx filter for WCN3990
ath9k: fix tx99 with monitor mode interface
wil6210: drop Rx multicast packets that are looped-back to STA
wil6210: set edma variables only for Talyn-MB devices
wil6210: prevent usage of tx ring 0 for eDMA
wil6210: fix invalid memory access for rx_buff_mgmt debugfs
ath10k: limit available channels via DT ieee80211-freq-limit
ice: Update request resource command to latest specification
ice: Prevent control queue operations during reset
gfs2: Don't set GFS2_RDF_UPTODATE when the lvb is updated
ice: Fix and update driver version string
ASoC: dapm: Don't fail creating new DAPM control on NULL pinctrl
ASoC: dpcm: Properly initialise hw->rate_max
ASoC: meson: axg-fifo: report interrupt request failure
ASoC: AMD: Change MCLK to 48Mhz
pinctrl: ingenic: Probe driver at subsys_initcall
MIPS: BCM47XX: Enable USB power on Netgear WNDR3400v3
ARM: dts: exynos: Use i2c-gpio for HDMI-DDC on Arndale
ARM: dts: exynos: Fix HDMI-HPD line handling on Arndale
ARM: dts: exynos: Fix sound in Snow-rev5 Chromebook
liquidio: fix race condition in instruction completion processing
arm64: dts: stratix10: i2c clock running out of spec
ARM: dts: exynos: Fix regulators configuration on Peach Pi/Pit Chromebooks
i40evf: Validate the number of queues a PF sends
i40e: use correct length for strncpy
i40evf: set IFF_UNICAST_FLT flag for the VF
i40e: Check and correct speed values for link on open
i40evf: Don't enable vlan stripping when rx offload is turned on
i40e: hold the rtnl lock on clearing interrupt scheme
i40evf: cancel workqueue sync for adminq when a VF is removed
i40e: Prevent deleting MAC address from VF when set by PF
IB/rxe: avoid back-to-back retries
IB/rxe: fixes for rdma read retry
iwlwifi: drop packets with bad status in CD
iwlwifi: don't WARN on trying to dump dead firmware
iwlwifi: mvm: avoid sending too many BARs
media: vicodec: fix out-of-range values when decoding
media: i2c: Fix pm_runtime_get_if_in_use() usage in sensor drivers
media: ov772x: Disable clk on error path
ARM: dts: pxa: fix the rtc controller
ARM: dts: pxa: fix power i2c base address
rtl8187: Fix warning generated when strncpy() destination length matches the sixe argument
mwifiex: do no submit URB in suspended state
mwifex: free rx_cmd skb in suspended state
brcmfmac: fix wrong strnchr usage
mt76: Fix comparisons with invalid hardware key index
soc: imx: gpc: fix PDN delay
ASoC: rsnd: ssi: Fix issue in dma data address assignment
net: hns3: Fix for multicast failure
net: hns3: Fix error of checking used vlan id
net: hns3: Fix for loopback selftest failed problem
net: hns3: Change the dst mac addr of loopback packet
net/mlx5: Fix atomic_mode enum values
net: phy: mscc: read 'vsc8531,vddmac' as an u32
net: phy: mscc: read 'vsc8531, edge-slowdown' as an u32
ARM: dts: meson8: fix the clock controller register size
ARM: dts: meson8b: fix the clock controller register size
mtd: rawnand: marvell: use regmap_update_bits() for syscon access
mtd: rawnand: fsl_ifc: check result of SRAM initialization
mtd: rawnand: fsl_ifc: fixup SRAM init for newer ctrl versions
mtd: rawnand: qcom: don't include dma-direct.h
IB/mlx5: Change TX affinity assignment in RoCE LAG mode
qxl: fix null-pointer crash during suspend
mac80211: fix saving a few HE values
cfg80211: validate wmm rule when setting
f2fs: avoid wrong decrypted data from disk
net: lan78xx: Bail out if lan78xx_get_endpoints fails
rtnetlink: move type calculation out of loop
ASoC: sgtl5000: avoid division by zero if lo_vag is zero
ath10k: avoid possible memory access violation
ARM: dts: exynos: Disable pull control for S5M8767 PMIC
ath10k: wmi: disable softirq's while calling ieee80211_rx
i2c: mediatek: Use DMA safe buffers for i2c transactions
IB/mlx5: Don't hold spin lock while checking device state
IB/ipoib: Ensure that MTU isn't less than minimum permitted
RDMA/core: Rate limit MAD error messages
RDMA/core: Follow correct unregister order between sysfs and cgroup
mips: txx9: fix iounmap related issue
udf: Fix crash during mount
ASoC: dapm: Avoid uninitialised variable warning
ASoC: Intel: hdac_hdmi: Limit sampling rates at dai creation
ata: Disable AHCI ALPM feature for Ampere Computing eMAG SATA
of: make PowerMac cache node search conditional on CONFIG_PPC_PMAC
ARM: dts: omap3-gta04: give spi_lcd node a label so that we can overwrite in other DTS files
ARM: dts: omap3-gta04: fixes for tvout / venc
ARM: dts: omap3-gta04: tvout: enable as display1 alias
ARM: dts: omap3-gta04: fix touchscreen tsc2007
ARM: dts: omap3-gta04: make NAND partitions compatible with recent U-Boot
ARM: dts: omap3-gta04: keep vpll2 always on
f2fs: submit bio after shutdown
failover: Fix error return code in net_failover_create
sched/debug: Explicitly cast sched_feat() to bool
sched/debug: Use symbolic names for task state constants
firmware: arm_scmi: use strlcpy to ensure NULL-terminated strings
arm64: dts: rockchip: Fix VCC5V0_HOST_EN on rk3399-sapphire
ARM: dts: exynos: Disable pull control for PMIC IRQ line on Artik5 board
usb: mtu3: disable vbus rise/fall interrupts of ltssm
dmaengine: dma-jz4780: Don't depend on MACH_JZ4780
dmaengine: dma-jz4780: Further residue status fix
EDAC, sb_edac: Return early on ADDRV bit and address type test
rtc: mt6397: fix possible race condition
rtc: pl030: fix possible race condition
ath9k: add back support for using active monitor interfaces for tx99
dmaengine: at_xdmac: remove a stray bottom half unlock
RDMA/hns: Fix an error code in hns_roce_v2_init_eq_table()
IB/hfi1: Missing return value in error path for user sdma
signal: Always ignore SIGKILL and SIGSTOP sent to the global init
signal: Properly deliver SIGILL from uprobes
signal: Properly deliver SIGSEGV from x86 uprobes
f2fs: fix memory leak of write_io in fill_super()
f2fs: fix memory leak of percpu counter in fill_super()
f2fs: fix setattr project check upon fssetxattr ioctl
scsi: qla2xxx: Use correct qpair for ABTS/CMD
scsi: qla2xxx: Fix iIDMA error
scsi: qla2xxx: Defer chip reset until target mode is enabled
scsi: qla2xxx: Terminate Plogi/PRLI if WWN is 0
scsi: qla2xxx: Fix deadlock between ATIO and HW lock
scsi: qla2xxx: Increase abort timeout value
scsi: qla2xxx: Check for Register disconnect
scsi: qla2xxx: Fix port speed display on chip reset
scsi: qla2xxx: Fix dropped srb resource.
scsi: qla2xxx: Fix duplicate switch's Nport ID entries
scsi: lpfc: Fix GFT_ID and PRLI logic for RSCN
scsi: lpfc: Correct invalid EQ doorbell write on if_type=6
scsi: lpfc: Fix errors in log messages.
scsi: sym53c8xx: fix NULL pointer dereference panic in sym_int_sir()
ARM: imx6: register pm_power_off handler if "fsl,pmic-stby-poweroff" is set
scsi: pm80xx: Corrected dma_unmap_sg() parameter
scsi: pm80xx: Fixed system hang issue during kexec boot
kprobes: Don't call BUG_ON() if there is a kprobe in use on free list
net: aquantia: fix hw_atl_utils_fw_upload_dwords
Drivers: hv: vmbus: Fix synic per-cpu context initialization
nvmem: core: return error code instead of NULL from nvmem_device_get
media: dt-bindings: adv748x: Fix decimal unit addresses
ALSA: hda: Fix implicit definition of pci_iomap() on SH
media: fix: media: pci: meye: validate offset to avoid arbitrary access
media: dvb: fix compat ioctl translation
net: bcmgenet: Fix speed selection for reverse MII
arm64: dts: meson: libretech: update board model
arm64: dts: meson-axg: use the proper compatible for ethmac
ALSA: intel8x0m: Register irq handler after register initializations
arm64: dts: renesas: salvator-common: adv748x: Override secondary addresses
arm64: dts: renesas: r8a77965: Attach the SYS-DMAC to the IPMMU
arm64: dts: renesas: r8a77965: Fix HS-USB compatible
arm64: dts: renesas: r8a77965: Fix clock/reset for usb2_phy1
pinctrl: at91-pio4: fix has_config check in atmel_pctl_dt_subnode_to_map()
llc: avoid blocking in llc_sap_close()
ARM: dts: qcom: ipq4019: fix cpu0's qcom,saw2 reg value
soc: qcom: geni: Don't ignore clk_round_rate() errors in geni_se_clk_tbl_get()
soc: qcom: geni: geni_se_clk_freq_match() should always accept multiples
soc: qcom: wcnss_ctrl: Avoid string overflow
soc: qcom: apr: Avoid string overflow
drivers: qcom: rpmh-rsc: clear wait_for_compl after use
arm64: dts: broadcom: Fix I2C and SPI bus warnings
ARM: dts: bcm: Fix SPI bus warnings
ARM: dts: aspeed: Fix I2C bus warnings
powerpc/vdso: Correct call frame information
ARM: dts: socfpga: Fix I2C bus unit-address error
ARM: dts: sunxi: Fix I2C bus warnings
pinctrl: at91: don't use the same irqchip with multiple gpiochips
ARM: dts: sun9i: Fix I2C bus warnings
android: binder: no outgoing transaction when thread todo has transaction
cxgb4: Fix endianness issue in t4_fwcache()
arm64: fix for bad_mode() handler to always result in panic
block, bfq: inject other-queue I/O into seeky idle queues on NCQ flash
blok, bfq: do not plug I/O if all queues are weight-raised
arm64: dts: meson: Fix erroneous SPI bus warnings
power: supply: ab8500_fg: silence uninitialized variable warnings
power: reset: at91-poweroff: do not procede if at91_shdwc is allocated
power: supply: max8998-charger: Fix platform data retrieval
component: fix loop condition to call unbind() if bind() fails
kernfs: Fix range checks in kernfs_get_target_path
ip_gre: fix parsing gre header in ipgre_err
scsi: ufshcd: Fix NULL pointer dereference for in ufshcd_init
ARM: dts: rockchip: Fix erroneous SPI bus dtc warnings on rk3036
arm64: dts: rockchip: Fix I2C bus unit-address error on rk3399-puma-haikou
ACPI / LPSS: Exclude I2C busses shared with PUNIT from pmc_atom_d3_mask
netfilter: nf_tables: avoid BUG_ON usage
ath9k: Fix a locking bug in ath9k_add_interface()
s390/qeth: uninstall IRQ handler on device removal
s390/qeth: invoke softirqs after napi_schedule()
media: vsp1: Fix vsp1_regs.h license header
media: vsp1: Fix YCbCr planar formats pitch calculation
media: ov2680: don't register the v4l2 subdevice before checking chip ID
PCI/ACPI: Correct error message for ASPM disabling
net: socionext: Fix two sleep-in-atomic-context bugs in ave_rxfifo_reset()
PCI: mediatek: Fix unchecked return value
ARM: dts: xilinx: Fix I2C and SPI bus warnings
serial: uartps: Fix suspend functionality
serial: samsung: Enable baud clock for UART reset procedure in resume
serial: mxs-auart: Fix potential infinite loop
tty: serial: qcom_geni_serial: Fix serial when not used as console
arm64: dts: ti: k3-am65: Change #address-cells and #size-cells of interconnect to 2
samples/bpf: fix a compilation failure
spi/bcm63xx-hsspi: keep pll clk enabled
spi: mediatek: Don't modify spi_transfer when transfer.
ASoC: rt5682: Fix the boost volume at the begining of playback
ipmi_si_pci: fix NULL device in ipmi_si error message
ipmi_si: fix potential integer overflow on large shift
ipmi:dmi: Ignore IPMI SMBIOS entries with a zero base address
ipmi: fix return value of ipmi_set_my_LUN
net: hns3: fix return type of ndo_start_xmit function
net: cavium: fix return type of ndo_start_xmit function
net: ibm: fix return type of ndo_start_xmit function
powerpc/iommu: Avoid derefence before pointer check
selftests/powerpc: Do not fail with reschedule
powerpc/64s/hash: Fix stab_rr off by one initialization
powerpc/pseries/memory-hotplug: Only update DT once per memory DLPAR request
powerpc/pseries: Disable CPU hotplug across migrations
powerpc: Fix duplicate const clang warning in user access code
RDMA/i40iw: Fix incorrect iterator type
ARM: dts: atmel: Fix I2C and SPI bus warnings
OPP: Protect dev_list with opp_table lock
of/unittest: Fix I2C bus unit-address error
libfdt: Ensure INT_MAX is defined in libfdt_env.h
power: supply: twl4030_charger: fix charging current out-of-bounds
power: supply: twl4030_charger: disable eoc interrupt on linear charge
net: mvpp2: fix the number of queues per cpu for PPv2.2
net: marvell: fix return type of ndo_start_xmit function
net: toshiba: fix return type of ndo_start_xmit function
net: xilinx: fix return type of ndo_start_xmit function
net: broadcom: fix return type of ndo_start_xmit function
net: amd: fix return type of ndo_start_xmit function
net: sun: fix return type of ndo_start_xmit function
net: hns3: Fix for setting speed for phy failed problem
net: hns3: Fix cmdq registers initialization issue for vf
net: hns3: Clear client pointer when initialize client failed or unintialize finished
net: hns3: Fix client initialize state issue when roce client initialize failed
net: hns3: Fix parameter type for q_id in hclge_tm_q_to_qs_map_cfg()
nfp: provide a better warning when ring allocation fails
usb: chipidea: imx: enable OTG overcurrent in case USB subsystem is already started
usb: chipidea: Fix otg event handler
usb: usbtmc: Fix ioctl USBTMC_IOCTL_ABORT_BULK_OUT
s390/zcrypt: enable AP bus scan without a valid default domain
s390/vdso: avoid 64-bit vdso mapping for compat tasks
s390/vdso: correct CFI annotations of vDSO functions
brcmfmac: increase buffer for obtaining firmware capabilities
brcmsmac: Use kvmalloc() for ucode allocations
mlxsw: spectrum: Init shaper for TCs 8..15
PCI: portdrv: Initialize service drivers directly
ARM: dts: am335x-evm: fix number of cpsw
ARM: dts: ti: Fix SPI and I2C bus warnings
f2fs: avoid infinite loop in f2fs_alloc_nid
f2fs: fix to recover inode's uid/gid during POR
ARM: dts: ux500: Correct SCU unit address
ARM: dts: ux500: Fix LCDA clock line muxing
ARM: dts: ste: Fix SPI controller node names
spi: pic32: Use proper enum in dmaengine_prep_slave_rg
crypto: chacha20 - Fix chacha20_block() keystream alignment (again)
cpufeature: avoid warning when compiling with clang
crypto: arm/crc32 - avoid warning when compiling with Clang
ARM: dts: marvell: Fix SPI and I2C bus warnings
x86/mce-inject: Reset injection struct after injection
ARM: dts: stm32: enable display on stm32mp157c-ev1 board
ARM: dts: clearfog: fix sdhci supply property name
ARM: dts: stm32: Fix SPI controller node names
bnx2x: Ignore bandwidth attention in single function mode
PCI/AER: Take reference on error devices
PCI/AER: Don't read upstream ports below fatal errors
PCI/ERR: Use slot reset if available
samples/bpf: fix compilation failure
net: phy: mdio-bcm-unimac: Allow configuring MDIO clock divider
net: micrel: fix return type of ndo_start_xmit function
net: freescale: fix return type of ndo_start_xmit function
x86/CPU: Use correct macros for Cyrix calls
x86/CPU: Change query logic so CPUID is enabled before testing
EDAC: Correct DIMM capacity unit symbol
MIPS: kexec: Relax memory restriction
arm64: dts: rockchip: Fix microSD in rk3399 sapphire board
mlxsw: Make MLXSW_SP1_FWREV_MINOR a hard requirement
media: imx: work around false-positive warning, again
media: pci: ivtv: Fix a sleep-in-atomic-context bug in ivtv_yuv_init()
media: au0828: Fix incorrect error messages
media: davinci: Fix implicit enum conversion warning
ARM: dts: rockchip: explicitly set vcc_sd0 pin to gpio on rk3188-radxarock
usb: gadget: uvc: configfs: Drop leaked references to config items
usb: gadget: uvc: configfs: Prevent format changes after linking header
usb: gadget: uvc: configfs: Sort frame intervals upon writing
ARM: dts: exynos: Correct audio subsystem parent clock on Peach Chromebooks
i2c: aspeed: fix invalid clock parameters for very large divisors
gpiolib: Fix gpio_direction_* for single direction GPIOs
ARM: at91: pm: call put_device instead of of_node_put in at91_pm_config_ws
phy: brcm-sata: allow PHY_BRCM_SATA driver to be built for DSL SoCs
phy: renesas: rcar-gen3-usb2: fix vbus_ctrl for role sysfs
phy: phy-twl4030-usb: fix denied runtime access
ARM: dts: imx6ull: update vdd_soc voltage for 900MHz operating point
usb: gadget: uvc: Factor out video USB request queueing
usb: gadget: uvc: Only halt video streaming endpoint in bulk mode
coresight: Use ERR_CAST instead of ERR_PTR
coresight: Fix handling of sinks
coresight: perf: Fix per cpu path management
coresight: perf: Disable trace path upon source error
coresight: tmc-etr: Handle driver mode specific ETR buffers
coresight: etm4x: Configure EL2 exception level when kernel is running in HYP
coresight: tmc: Fix byte-address alignment for RRP
coresight: dynamic-replicator: Handle multiple connections
slimbus: ngd: register ngd driver only once.
slimbus: ngd: return proper error code instead of zero
silmbus: ngd: register controller after power up.
misc: kgdbts: Fix restrict error
misc: genwqe: should return proper error value.
vmbus: keep pointer to ring buffer page
vfio/pci: Fix potential memory leak in vfio_msi_cap_len
vfio/pci: Mask buggy SR-IOV VF INTx support
iw_cxgb4: Use proper enumerated type in c4iw_bar2_addrs
scsi: libsas: always unregister the old device if going to discover new
f2fs: fix remount problem of option io_bits
phy: lantiq: Fix compile warning
arm64: dts: fsl: Fix I2C and SPI bus warnings
ARM: dts: imx51-zii-rdu1: Fix the rtc compatible string
arm64: tegra: I2C on Tegra194 is not compatible with Tegra114
ARM: dts: tegra30: fix xcvr-setup-use-fuses
ARM: dts: tegra20: restore address order
ARM: tegra: apalis_t30: fix mmc1 cmd pull-up
ARM: tegra: apalis_t30: fix mcp2515 can controller interrupt polarity
ARM: tegra: colibri_t30: fix mcp2515 can controller interrupt polarity
ARM: dts: paz00: fix wakeup gpio keycode
net: smsc: fix return type of ndo_start_xmit function
net: faraday: fix return type of ndo_start_xmit function
PCI/ERR: Run error recovery callbacks for all affected devices
f2fs: update i_size after DIO completion
f2fs: fix to recover inode's project id during POR
f2fs: mark inode dirty explicitly in recover_inode()
RDMA: Fix dependencies for rdma_user_mmap_io
EDAC: Raise the maximum number of memory controllers
ARM: dts: realview: Fix SPI controller node names
firmware: dell_rbu: Make payload memory uncachable
Bluetooth: hci_serdev: clear HCI_UART_PROTO_READY to avoid closing proto races
Bluetooth: L2CAP: Detect if remote is not able to use the whole MPS
Bluetooth: btrsi: fix bt tx timeout issue
x86/hyperv: Suppress "PCI: Fatal: No config space access function found"
crypto: s5p-sss: Fix race in error handling
crypto: s5p-sss: Fix Fix argument list alignment
crypto: fix a memory leak in rsa-kcs1pad's encryption mode
iwlwifi: dbg: don't crash if the firmware crashes in the middle of a debug dump
iwlwifi: fix non_shared_ant for 22000 devices
iwlwifi: pcie: read correct prph address for newer devices
iwlwifi: api: annotate compressed BA notif array sizes
iwlwifi: pcie: gen2: build A-MSDU only for GSO
iwlwifi: pcie: fit reclaim msg to MAX_MSG_LEN
iwlwifi: mvm: use correct FIFO length
iwlwifi: mvm: Allow TKIP for AP mode
scsi: NCR5380: Clear all unissued commands on host reset
scsi: NCR5380: Have NCR5380_select() return a bool
scsi: NCR5380: Withhold disconnect privilege for REQUEST SENSE
scsi: NCR5380: Use DRIVER_SENSE to indicate valid sense data
scsi: NCR5380: Check for invalid reselection target
scsi: NCR5380: Don't clear busy flag when abort fails
scsi: NCR5380: Don't call dsprintk() following reselection interrupt
scsi: NCR5380: Handle BUS FREE during reselection
scsi: NCR5380: Check for bus reset
arm64: dts: amd: Fix SPI bus warnings
arm64: dts: lg: Fix SPI controller node names
ARM: dts: lpc32xx: Fix SPI controller node names
rtc: isl1208: avoid possible sysfs race
rtc: tx4939: fixup nvmem name and register size
rtc: armada38x: fix possible race condition
netfilter: masquerade: don't flush all conntracks if only one address deleted on device
usb: xhci-mtk: fix ISOC error when interval is zero
usb: usbtmc: uninitialized symbol 'actual' in usbtmc_ioctl_clear
fuse: use READ_ONCE on congestion_threshold and max_background
IB/iser: Fix possible NULL deref at iser_inv_desc()
media: ov2680: fix null dereference at power on
s390/vdso: correct vdso mapping for compat tasks
net: phy: mdio-bcm-unimac: mark PM functions as __maybe_unused
memfd: Use radix_tree_deref_slot_protected to avoid the warning.
slcan: Fix memory leak in error path
Linux 4.19.85
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I0857e66ee2cdd412cd736548a1395bf764a8ab0a
[ Upstream commit a75e78f21f9ad4b810868c89dbbabcc3931591ca ]
The terminating NUL byte is only there because the buffer is
allocated with kzalloc(PAGE_SIZE, GFP_KERNEL), but since the
range-check is off-by-one, and PAGE_SIZE==PATH_MAX, the
returned string may not be zero-terminated if it is exactly
PATH_MAX characters long. Furthermore also the initial loop
may theoretically exceed PATH_MAX and cause a fault.
Signed-off-by: Bernd Edlinger <bernd.edlinger@hotmail.de>
Acked-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
-----BEGIN PGP SIGNATURE-----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=v14F
-----END PGP SIGNATURE-----
Merge 4.19.44 into android-4.19
Changes in 4.19.44
bfq: update internal depth state when queue depth changes
platform/x86: sony-laptop: Fix unintentional fall-through
platform/x86: thinkpad_acpi: Disable Bluetooth for some machines
platform/x86: dell-laptop: fix rfkill functionality
hwmon: (pwm-fan) Disable PWM if fetching cooling data fails
kernfs: fix barrier usage in __kernfs_new_node()
virt: vbox: Sanity-check parameter types for hgcm-calls coming from userspace
USB: serial: fix unthrottle races
iio: adc: xilinx: fix potential use-after-free on remove
iio: adc: xilinx: fix potential use-after-free on probe
iio: adc: xilinx: prevent touching unclocked h/w on remove
acpi/nfit: Always dump _DSM output payload
libnvdimm/namespace: Fix a potential NULL pointer dereference
HID: input: add mapping for Expose/Overview key
HID: input: add mapping for keyboard Brightness Up/Down/Toggle keys
HID: input: add mapping for "Toggle Display" key
libnvdimm/btt: Fix a kmemdup failure check
s390/dasd: Fix capacity calculation for large volumes
mac80211: fix unaligned access in mesh table hash function
mac80211: Increase MAX_MSG_LEN
cfg80211: Handle WMM rules in regulatory domain intersection
mac80211: fix memory accounting with A-MSDU aggregation
nl80211: Add NL80211_FLAG_CLEAR_SKB flag for other NL commands
libnvdimm/pmem: fix a possible OOB access when read and write pmem
s390/3270: fix lockdep false positive on view->lock
drm/amd/display: extending AUX SW Timeout
clocksource/drivers/npcm: select TIMER_OF
clocksource/drivers/oxnas: Fix OX820 compatible
selftests: fib_tests: Fix 'Command line is not complete' errors
mISDN: Check address length before reading address family
vxge: fix return of a free'd memblock on a failed dma mapping
qede: fix write to free'd pointer error and double free of ptp
afs: Unlock pages for __pagevec_release()
drm/amd/display: If one stream full updates, full update all planes
s390/pkey: add one more argument space for debug feature entry
x86/build/lto: Fix truncated .bss with -fdata-sections
x86/reboot, efi: Use EFI reboot for Acer TravelMate X514-51T
KVM: fix spectrev1 gadgets
KVM: x86: avoid misreporting level-triggered irqs as edge-triggered in tracing
tools lib traceevent: Fix missing equality check for strcmp
ipmi: ipmi_si_hardcode.c: init si_type array to fix a crash
ocelot: Don't sleep in atomic context (irqs_disabled())
scsi: aic7xxx: fix EISA support
mm: fix inactive list balancing between NUMA nodes and cgroups
init: initialize jump labels before command line option parsing
selftests: netfilter: check icmp pkttoobig errors are set as related
ipvs: do not schedule icmp errors from tunnels
netfilter: ctnetlink: don't use conntrack/expect object addresses as id
netfilter: nf_tables: prevent shift wrap in nft_chain_parse_hook()
MIPS: perf: ath79: Fix perfcount IRQ assignment
s390: ctcm: fix ctcm_new_device error return code
drm/sun4i: Set device driver data at bind time for use in unbind
drm/sun4i: Fix component unbinding and component master deletion
selftests/net: correct the return value for run_netsocktests
netfilter: fix nf_l4proto_log_invalid to log invalid packets
gpu: ipu-v3: dp: fix CSC handling
drm/imx: don't skip DP channel disable for background plane
ARM: 8856/1: NOMMU: Fix CCR register faulty initialization when MPU is disabled
spi: Micrel eth switch: declare missing of table
spi: ST ST95HF NFC: declare missing of table
drm/sun4i: Unbind components before releasing DRM and memory
Input: synaptics-rmi4 - fix possible double free
RDMA/hns: Bugfix for mapping user db
mm/memory_hotplug.c: drop memory device reference after find_memory_block()
powerpc/smp: Fix NMI IPI timeout
powerpc/smp: Fix NMI IPI xmon timeout
net: dsa: mv88e6xxx: fix few issues in mv88e6390x_port_set_cmode
mm/memory.c: fix modifying of page protection by insert_pfn()
usb: typec: Fix unchecked return value
netfilter: nf_tables: use-after-free in dynamic operations
netfilter: nf_tables: add missing ->release_ops() in error path of newrule()
net: fec: manage ahb clock in runtime pm
mlxsw: spectrum_switchdev: Add MDB entries in prepare phase
mlxsw: core: Do not use WQ_MEM_RECLAIM for EMAD workqueue
mlxsw: core: Do not use WQ_MEM_RECLAIM for mlxsw ordered workqueue
mlxsw: core: Do not use WQ_MEM_RECLAIM for mlxsw workqueue
net/tls: fix the IV leaks
net: strparser: partially revert "strparser: Call skb_unclone conditionally"
NFC: nci: Add some bounds checking in nci_hci_cmd_received()
nfc: nci: Potential off by one in ->pipes[] array
x86/kprobes: Avoid kretprobe recursion bug
cw1200: fix missing unlock on error in cw1200_hw_scan()
mwl8k: Fix rate_idx underflow
rtlwifi: rtl8723ae: Fix missing break in switch statement
Don't jump to compute_result state from check_result state
um: Don't hardcode path as it is architecture dependent
powerpc/64s: Include cpu header
bonding: fix arp_validate toggling in active-backup mode
bridge: Fix error path for kobject_init_and_add()
dpaa_eth: fix SG frame cleanup
fib_rules: return 0 directly if an exactly same rule exists when NLM_F_EXCL not supplied
ipv4: Fix raw socket lookup for local traffic
net: dsa: Fix error cleanup path in dsa_init_module
net: ethernet: stmmac: dwmac-sun8i: enable support of unicast filtering
net: macb: Change interrupt and napi enable order in open
net: seeq: fix crash caused by not set dev.parent
net: ucc_geth - fix Oops when changing number of buffers in the ring
packet: Fix error path in packet_init
selinux: do not report error on connect(AF_UNSPEC)
vlan: disable SIOCSHWTSTAMP in container
vrf: sit mtu should not be updated when vrf netdev is the link
tuntap: fix dividing by zero in ebpf queue selection
tuntap: synchronize through tfiles array instead of tun->numqueues
isdn: bas_gigaset: use usb_fill_int_urb() properly
tipc: fix hanging clients using poll with EPOLLOUT flag
drivers/virt/fsl_hypervisor.c: dereferencing error pointers in ioctl
drivers/virt/fsl_hypervisor.c: prevent integer overflow in ioctl
powerpc/book3s/64: check for NULL pointer in pgd_alloc()
powerpc/powernv/idle: Restore IAMR after idle
powerpc/booke64: set RI in default MSR
PCI: hv: Fix a memory leak in hv_eject_device_work()
PCI: hv: Add hv_pci_remove_slots() when we unload the driver
PCI: hv: Add pci_destroy_slot() in pci_devices_present_work(), if necessary
Linux 4.19.44
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
commit 998267900cee901c5d1dfa029a6304d00acbc29f upstream.
smp_mb__before_atomic() can not be applied to atomic_set(). Remove the
barrier and rely on RELEASE synchronization.
Fixes: ba16b2846a ("kernfs: add an API to get kernfs node from inode number")
Cc: stable@vger.kernel.org
Signed-off-by: Andrea Parri <andrea.parri@amarulasolutions.com>
Acked-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-----BEGIN PGP SIGNATURE-----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=xtLx
-----END PGP SIGNATURE-----
Merge 4.19.31 into android-4.19
Changes in 4.19.31
media: videobuf2-v4l2: drop WARN_ON in vb2_warn_zero_bytesused()
9p: use inode->i_lock to protect i_size_write() under 32-bit
9p/net: fix memory leak in p9_client_create
ASoC: fsl_esai: fix register setting issue in RIGHT_J mode
ASoC: codecs: pcm186x: fix wrong usage of DECLARE_TLV_DB_SCALE()
ASoC: codecs: pcm186x: Fix energysense SLEEP bit
iio: adc: exynos-adc: Fix NULL pointer exception on unbind
mei: hbm: clean the feature flags on link reset
mei: bus: move hw module get/put to probe/release
stm class: Fix an endless loop in channel allocation
crypto: caam - fix hash context DMA unmap size
crypto: ccree - fix missing break in switch statement
crypto: caam - fixed handling of sg list
crypto: caam - fix DMA mapping of stack memory
crypto: ccree - fix free of unallocated mlli buffer
crypto: ccree - unmap buffer before copying IV
crypto: ccree - don't copy zero size ciphertext
crypto: cfb - add missing 'chunksize' property
crypto: cfb - remove bogus memcpy() with src == dest
crypto: ahash - fix another early termination in hash walk
crypto: rockchip - fix scatterlist nents error
crypto: rockchip - update new iv to device in multiple operations
drm/imx: ignore plane updates on disabled crtcs
gpu: ipu-v3: Fix i.MX51 CSI control registers offset
drm/imx: imx-ldb: add missing of_node_puts
gpu: ipu-v3: Fix CSI offsets for imx53
ASoC: rt5682: Correct the setting while select ASRC clk for AD/DA filter
clocksource: timer-ti-dm: Fix pwm dmtimer usage of fck reparenting
KVM: arm/arm64: vgic: Make vgic_dist->lpi_list_lock a raw_spinlock
arm64: dts: rockchip: fix graph_port warning on rk3399 bob kevin and excavator
s390/dasd: fix using offset into zero size array error
Input: pwm-vibra - prevent unbalanced regulator
Input: pwm-vibra - stop regulator after disabling pwm, not before
ARM: dts: Configure clock parent for pwm vibra
ARM: OMAP2+: Variable "reg" in function omap4_dsi_mux_pads() could be uninitialized
ASoC: dapm: fix out-of-bounds accesses to DAPM lookup tables
ASoC: rsnd: fixup rsnd_ssi_master_clk_start() user count check
KVM: arm/arm64: Reset the VCPU without preemption and vcpu state loaded
arm/arm64: KVM: Allow a VCPU to fully reset itself
arm/arm64: KVM: Don't panic on failure to properly reset system registers
KVM: arm/arm64: vgic: Always initialize the group of private IRQs
KVM: arm64: Forbid kprobing of the VHE world-switch code
ASoC: samsung: Prevent clk_get_rate() calls in atomic context
ARM: OMAP2+: fix lack of timer interrupts on CPU1 after hotplug
Input: cap11xx - switch to using set_brightness_blocking()
Input: ps2-gpio - flush TX work when closing port
Input: matrix_keypad - use flush_delayed_work()
mac80211: call drv_ibss_join() on restart
mac80211: Fix Tx aggregation session tear down with ITXQs
netfilter: compat: initialize all fields in xt_init
blk-mq: insert rq with DONTPREP to hctx dispatch list when requeue
ipvs: fix dependency on nf_defrag_ipv6
floppy: check_events callback should not return a negative number
xprtrdma: Make sure Send CQ is allocated on an existing compvec
NFS: Don't use page_file_mapping after removing the page
mm/gup: fix gup_pmd_range() for dax
Revert "mm: use early_pfn_to_nid in page_ext_init"
scsi: qla2xxx: Fix panic from use after free in qla2x00_async_tm_cmd
net: dsa: bcm_sf2: potential array overflow in bcm_sf2_sw_suspend()
x86/CPU: Add Icelake model number
mm: page_alloc: fix ref bias in page_frag_alloc() for 1-byte allocs
net: hns: Fix object reference leaks in hns_dsaf_roce_reset()
i2c: cadence: Fix the hold bit setting
i2c: bcm2835: Clear current buffer pointers and counts after a transfer
auxdisplay: ht16k33: fix potential user-after-free on module unload
Input: st-keyscan - fix potential zalloc NULL dereference
clk: sunxi-ng: v3s: Fix TCON reset de-assert bit
kallsyms: Handle too long symbols in kallsyms.c
clk: sunxi: A31: Fix wrong AHB gate number
esp: Skip TX bytes accounting when sending from a request socket
ARM: 8824/1: fix a migrating irq bug when hotplug cpu
bpf: only adjust gso_size on bytestream protocols
bpf: fix lockdep false positive in stackmap
af_key: unconditionally clone on broadcast
ARM: 8835/1: dma-mapping: Clear DMA ops on teardown
assoc_array: Fix shortcut creation
keys: Fix dependency loop between construction record and auth key
scsi: libiscsi: Fix race between iscsi_xmit_task and iscsi_complete_task
net: systemport: Fix reception of BPDUs
net: dsa: bcm_sf2: Do not assume DSA master supports WoL
pinctrl: meson: meson8b: fix the sdxc_a data 1..3 pins
qmi_wwan: apply SET_DTR quirk to Sierra WP7607
net: mv643xx_eth: disable clk on error path in mv643xx_eth_shared_probe()
xfrm: Fix inbound traffic via XFRM interfaces across network namespaces
mailbox: bcm-flexrm-mailbox: Fix FlexRM ring flush timeout issue
ASoC: topology: free created components in tplg load error
qed: Fix iWARP buffer size provided for syn packet processing.
qed: Fix iWARP syn packet mac address validation.
ARM: dts: armada-xp: fix Armada XP boards NAND description
arm64: Relax GIC version check during early boot
ARM: tegra: Restore DT ABI on Tegra124 Chromebooks
net: marvell: mvneta: fix DMA debug warning
mm: handle lru_add_drain_all for UP properly
tmpfs: fix link accounting when a tmpfile is linked in
ixgbe: fix older devices that do not support IXGBE_MRQC_L3L4TXSWEN
ARCv2: lib: memcpy: fix doing prefetchw outside of buffer
ARC: uacces: remove lp_start, lp_end from clobber list
ARCv2: support manual regfile save on interrupts
ARCv2: don't assume core 0x54 has dual issue
phonet: fix building with clang
mac80211_hwsim: propagate genlmsg_reply return code
bpf, lpm: fix lookup bug in map_delete_elem
net: thunderx: make CFG_DONE message to run through generic send-ack sequence
net: thunderx: add nicvf_send_msg_to_pf result check for set_rx_mode_task
nfp: bpf: fix code-gen bug on BPF_ALU | BPF_XOR | BPF_K
nfp: bpf: fix ALU32 high bits clearance bug
bnxt_en: Fix typo in firmware message timeout logic.
bnxt_en: Wait longer for the firmware message response to complete.
net: set static variable an initial value in atl2_probe()
selftests: fib_tests: sleep after changing carrier. again.
tmpfs: fix uninitialized return value in shmem_link
stm class: Prevent division by zero
nfit: acpi_nfit_ctl(): Check out_obj->type in the right place
acpi/nfit: Fix bus command validation
nfit/ars: Attempt a short-ARS whenever the ARS state is idle at boot
nfit/ars: Attempt short-ARS even in the no_init_ars case
libnvdimm/label: Clear 'updating' flag after label-set update
libnvdimm, pfn: Fix over-trim in trim_pfn_device()
libnvdimm/pmem: Honor force_raw for legacy pmem regions
libnvdimm: Fix altmap reservation size calculation
fix cgroup_do_mount() handling of failure exits
crypto: aead - set CRYPTO_TFM_NEED_KEY if ->setkey() fails
crypto: aegis - fix handling chunked inputs
crypto: arm/crct10dif - revert to C code for short inputs
crypto: arm64/aes-neonbs - fix returning final keystream block
crypto: arm64/crct10dif - revert to C code for short inputs
crypto: hash - set CRYPTO_TFM_NEED_KEY if ->setkey() fails
crypto: morus - fix handling chunked inputs
crypto: pcbc - remove bogus memcpy()s with src == dest
crypto: skcipher - set CRYPTO_TFM_NEED_KEY if ->setkey() fails
crypto: testmgr - skip crc32c context test for ahash algorithms
crypto: x86/aegis - fix handling chunked inputs and MAY_SLEEP
crypto: x86/aesni-gcm - fix crash on empty plaintext
crypto: x86/morus - fix handling chunked inputs and MAY_SLEEP
crypto: arm64/aes-ccm - fix logical bug in AAD MAC handling
crypto: arm64/aes-ccm - fix bugs in non-NEON fallback routine
CIFS: Do not reset lease state to NONE on lease break
CIFS: Do not skip SMB2 message IDs on send failures
CIFS: Fix read after write for files with read caching
tracing: Use strncpy instead of memcpy for string keys in hist triggers
tracing: Do not free iter->trace in fail path of tracing_open_pipe()
tracing/perf: Use strndup_user() instead of buggy open-coded version
xen: fix dom0 boot on huge systems
ACPI / device_sysfs: Avoid OF modalias creation for removed device
mmc: sdhci-esdhc-imx: fix HS400 timing issue
mmc:fix a bug when max_discard is 0
netfilter: ipt_CLUSTERIP: fix warning unused variable cn
spi: ti-qspi: Fix mmap read when more than one CS in use
spi: pxa2xx: Setup maximum supported DMA transfer length
regulator: s2mps11: Fix steps for buck7, buck8 and LDO35
regulator: max77620: Initialize values for DT properties
regulator: s2mpa01: Fix step values for some LDOs
clocksource/drivers/exynos_mct: Move one-shot check from tick clear to ISR
clocksource/drivers/exynos_mct: Clear timer interrupt when shutdown
clocksource/drivers/arch_timer: Workaround for Allwinner A64 timer instability
s390/setup: fix early warning messages
s390/virtio: handle find on invalid queue gracefully
scsi: virtio_scsi: don't send sc payload with tmfs
scsi: aacraid: Fix performance issue on logical drives
scsi: sd: Optimal I/O size should be a multiple of physical block size
scsi: target/iscsi: Avoid iscsit_release_commands_from_conn() deadlock
scsi: qla2xxx: Fix LUN discovery if loop id is not assigned yet by firmware
fs/devpts: always delete dcache dentry-s in dput()
splice: don't merge into linked buffers
ovl: During copy up, first copy up data and then xattrs
ovl: Do not lose security.capability xattr over metadata file copy-up
m68k: Add -ffreestanding to CFLAGS
Btrfs: setup a nofs context for memory allocation at btrfs_create_tree()
Btrfs: setup a nofs context for memory allocation at __btrfs_set_acl
btrfs: ensure that a DUP or RAID1 block group has exactly two stripes
Btrfs: fix corruption reading shared and compressed extents after hole punching
soc: qcom: rpmh: Avoid accessing freed memory from batch API
libertas_tf: don't set URB_ZERO_PACKET on IN USB transfer
irqchip/gic-v3-its: Avoid parsing _indirect_ twice for Device table
irqchip/brcmstb-l2: Use _irqsave locking variants in non-interrupt code
x86/kprobes: Prohibit probing on optprobe template code
cpufreq: kryo: Release OPP tables on module removal
cpufreq: tegra124: add missing of_node_put()
cpufreq: pxa2xx: remove incorrect __init annotation
ext4: fix check of inode in swap_inode_boot_loader
ext4: cleanup pagecache before swap i_data
ext4: update quota information while swapping boot loader inode
ext4: add mask of ext4 flags to swap
ext4: fix crash during online resizing
PCI/ASPM: Use LTR if already enabled by platform
PCI/DPC: Fix print AER status in DPC event handling
PCI: dwc: skip MSI init if MSIs have been explicitly disabled
IB/hfi1: Close race condition on user context disable and close
cxl: Wrap iterations over afu slices inside 'afu_list_lock'
ext2: Fix underflow in ext2_max_size()
clk: uniphier: Fix update register for CPU-gear
clk: clk-twl6040: Fix imprecise external abort for pdmclk
clk: samsung: exynos5: Fix possible NULL pointer exception on platform_device_alloc() failure
clk: samsung: exynos5: Fix kfree() of const memory on setting driver_override
clk: ingenic: Fix round_rate misbehaving with non-integer dividers
clk: ingenic: Fix doc of ingenic_cgu_div_info
usb: chipidea: tegra: Fix missed ci_hdrc_remove_device()
usb: typec: tps6598x: handle block writes separately with plain-I2C adapters
dmaengine: usb-dmac: Make DMAC system sleep callbacks explicit
mm: hwpoison: fix thp split handing in soft_offline_in_use_page()
mm/vmalloc: fix size check for remap_vmalloc_range_partial()
mm/memory.c: do_fault: avoid usage of stale vm_area_struct
kernel/sysctl.c: add missing range check in do_proc_dointvec_minmax_conv
device property: Fix the length used in PROPERTY_ENTRY_STRING()
intel_th: Don't reference unassigned outputs
parport_pc: fix find_superio io compare code, should use equal test.
i2c: tegra: fix maximum transfer size
media: i2c: ov5640: Fix post-reset delay
gpio: pca953x: Fix dereference of irq data in shutdown
can: flexcan: FLEXCAN_IFLAG_MB: add () around macro argument
drm/i915: Relax mmap VMA check
bpf: only test gso type on gso packets
serial: uartps: Fix stuck ISR if RX disabled with non-empty FIFO
serial: 8250_of: assume reg-shift of 2 for mrvl,mmp-uart
serial: 8250_pci: Fix number of ports for ACCES serial cards
serial: 8250_pci: Have ACCES cards that use the four port Pericom PI7C9X7954 chip use the pci_pericom_setup()
jbd2: clear dirty flag when revoking a buffer from an older transaction
jbd2: fix compile warning when using JBUFFER_TRACE
selinux: add the missing walk_size + len check in selinux_sctp_bind_connect
security/selinux: fix SECURITY_LSM_NATIVE_LABELS on reused superblock
powerpc/32: Clear on-stack exception marker upon exception return
powerpc/wii: properly disable use of BATs when requested.
powerpc/powernv: Make opal log only readable by root
powerpc/83xx: Also save/restore SPRG4-7 during suspend
powerpc/powernv: Don't reprogram SLW image on every KVM guest entry/exit
powerpc: Fix 32-bit KVM-PR lockup and host crash with MacOS guest
powerpc/ptrace: Simplify vr_get/set() to avoid GCC warning
powerpc/hugetlb: Don't do runtime allocation of 16G pages in LPAR configuration
powerpc/traps: fix recoverability of machine check handling on book3s/32
powerpc/traps: Fix the message printed when stack overflows
ARM: s3c24xx: Fix boolean expressions in osiris_dvs_notify
arm64: Fix HCR.TGE status for NMI contexts
arm64: debug: Ensure debug handlers check triggering exception level
arm64: KVM: Fix architecturally invalid reset value for FPEXC32_EL2
ipmi_si: fix use-after-free of resource->name
dm: fix to_sector() for 32bit
dm integrity: limit the rate of error messages
mfd: sm501: Fix potential NULL pointer dereference
cpcap-charger: generate events for userspace
NFS: Fix I/O request leakages
NFS: Fix an I/O request leakage in nfs_do_recoalesce
NFS: Don't recoalesce on error in nfs_pageio_complete_mirror()
nfsd: fix performance-limiting session calculation
nfsd: fix memory corruption caused by readdir
nfsd: fix wrong check in write_v4_end_grace()
NFSv4.1: Reinitialise sequence results before retransmitting a request
svcrpc: fix UDP on servers with lots of threads
PM / wakeup: Rework wakeup source timer cancellation
bcache: never writeback a discard operation
stable-kernel-rules.rst: add link to networking patch queue
vt: perform safe console erase in the right order
x86/unwind/orc: Fix ORC unwind table alignment
perf intel-pt: Fix CYC timestamp calculation after OVF
perf tools: Fix split_kallsyms_for_kcore() for trampoline symbols
perf auxtrace: Define auxtrace record alignment
perf intel-pt: Fix overlap calculation for padding
perf/x86/intel/uncore: Fix client IMC events return huge result
perf intel-pt: Fix divide by zero when TSC is not available
md: Fix failed allocation of md_register_thread
tpm/tpm_crb: Avoid unaligned reads in crb_recv()
tpm: Unify the send callback behaviour
rcu: Do RCU GP kthread self-wakeup from softirq and interrupt
media: imx: prpencvf: Stop upstream before disabling IDMA channel
media: lgdt330x: fix lock status reporting
media: uvcvideo: Avoid NULL pointer dereference at the end of streaming
media: vimc: Add vimc-streamer for stream control
media: imx: csi: Disable CSI immediately after last EOF
media: imx: csi: Stop upstream before disabling IDMA channel
drm/fb-helper: generic: Fix drm_fbdev_client_restore()
drm/radeon/evergreen_cs: fix missing break in switch statement
drm/amd/powerplay: correct power reading on fiji
drm/amd/display: don't call dm_pp_ function from an fpu block
KVM: Call kvm_arch_memslots_updated() before updating memslots
KVM: x86/mmu: Detect MMIO generation wrap in any address space
KVM: x86/mmu: Do not cache MMIO accesses while memslots are in flux
KVM: nVMX: Sign extend displacements of VMX instr's mem operands
KVM: nVMX: Apply addr size mask to effective address for VMX instructions
KVM: nVMX: Ignore limit checks on VMX instructions using flat segments
bcache: use (REQ_META|REQ_PRIO) to indicate bio for metadata
s390/setup: fix boot crash for machine without EDAT-1
Linux 4.19.31
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
commit 399504e21a10be16dd1408ba0147367d9d82a10c upstream.
same story as with last May fixes in sysfs (7b745a4e40
"unfuck sysfs_mount()"); new_sb is left uninitialized
in case of early errors in kernfs_mount_ns() and papering
over it by treating any error from kernfs_mount_ns() as
equivalent to !new_ns ends up conflating the cases when
objects had never been transferred to a superblock with
ones when that has happened and resulting new superblock
had been dropped. Easily fixed (same way as in sysfs
case). Additionally, there's a superblock leak on
kernfs_node_dentry() failure *and* a dentry leak inside
kernfs_node_dentry() itself - the latter on probably
impossible errors, but the former not impossible to trigger
(as the matter of fact, injecting allocation failures
at that point *does* trigger it).
Cc: stable@kernel.org
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Patch series "psi: pressure stall monitors", v3.
Android is adopting psi to detect and remedy memory pressure that results
in stuttering and decreased responsiveness on mobile devices.
Psi gives us the stall information, but because we're dealing with
latencies in the millisecond range, periodically reading the pressure
files to detect stalls in a timely fashion is not feasible. Psi also
doesn't aggregate its averages at a high enough frequency right now.
This patch series extends the psi interface such that users can configure
sensitive latency thresholds and use poll() and friends to be notified
when these are breached.
As high-frequency aggregation is costly, it implements an aggregation
method that is optimized for fast, short-interval averaging, and makes the
aggregation frequency adaptive, such that high-frequency updates only
happen while monitored stall events are actively occurring.
With these patches applied, Android can monitor for, and ward off,
mounting memory shortages before they cause problems for the user. For
example, using memory stall monitors in userspace low memory killer daemon
(lmkd) we can detect mounting pressure and kill less important processes
before device becomes visibly sluggish. In our memory stress testing psi
memory monitors produce roughly 10x less false positives compared to
vmpressure signals. Having ability to specify multiple triggers for the
same psi metric allows other parts of Android framework to monitor memory
state of the device and act accordingly.
The new interface is straightforward. The user opens one of the pressure
files for writing and writes a trigger description into the file
descriptor that defines the stall state - some or full, and the maximum
stall time over a given window of time. E.g.:
/* Signal when stall time exceeds 100ms of a 1s window */
char trigger[] = "full 100000 1000000";
fd = open("/proc/pressure/memory");
write(fd, trigger, sizeof(trigger));
while (poll() >= 0) {
...
}
close(fd);
When the monitored stall state is entered, psi adapts its aggregation
frequency according to what the configured time window requires in order
to emit event signals in a timely fashion. Once the stalling subsides,
aggregation reverts back to normal.
The trigger is associated with the open file descriptor. To stop
monitoring, the user only needs to close the file descriptor and the
trigger is discarded.
Patches 1-4 prepare the psi code for polling support. Patch 5 implements
the adaptive polling logic, the pressure growth detection optimized for
short intervals, and hooks up write() and poll() on the pressure files.
The patches were developed in collaboration with Johannes Weiner.
This patch (of 5):
Kernfs has a standardized poll/notification mechanism for waking all
pollers on all fds when a filesystem node changes. To allow polling for
custom events, add a .poll callback that can override the default.
This is in preparation for pollable cgroup pressure files which have
per-fd trigger configurations.
Link: http://lkml.kernel.org/r/20190124211518.244221-2-surenb@google.com
Signed-off-by: Johannes Weiner <hannes@cmpxchg.org>
Signed-off-by: Suren Baghdasaryan <surenb@google.com>
Cc: Dennis Zhou <dennis@kernel.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jens Axboe <axboe@kernel.dk>
Cc: Li Zefan <lizefan@huawei.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Tejun Heo <tj@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
(cherry picked from commit: 147e1a97c4a0bdd43f55a582a9416bb9092563a9)
Bug: 127712811
Test: lmkd in PSI mode
Change-Id: I67d81f9c2ac340830aa4fb8954554b5ff8628244
Signed-off-by: Suren Baghdasaryan <surenb@google.com>
Here are all of the driver core and related patches for 4.19-rc1.
Nothing huge here, just a number of small cleanups and the ability to
now stop the deferred probing after init happens.
All of these have been in linux-next for a while with only a merge issue
reported. That merge issue is in fs/sysfs/group.c and Stephen has
posted the diff of what it should be to resolve this. I'll follow up
with that diff to this pull request.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-----BEGIN PGP SIGNATURE-----
iG0EABECAC0WIQT0tgzFv3jCIUoxPcsxR9QN2y37KQUCW3g86Q8cZ3JlZ0Brcm9h
aC5jb20ACgkQMUfUDdst+ynyXQCePaZSW8wft4b7nLN8RdZ98ATBru0Ani10lrJa
HQeQJRNbWU1AZ0ym7695
=tOaH
-----END PGP SIGNATURE-----
Merge tag 'driver-core-4.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
Pull driver core updates from Greg KH:
"Here are all of the driver core and related patches for 4.19-rc1.
Nothing huge here, just a number of small cleanups and the ability to
now stop the deferred probing after init happens.
All of these have been in linux-next for a while with only a merge
issue reported"
* tag 'driver-core-4.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (21 commits)
base: core: Remove WARN_ON from link dependencies check
drivers/base: stop new probing during shutdown
drivers: core: Remove glue dirs from sysfs earlier
driver core: remove unnecessary function extern declare
sysfs.h: fix non-kernel-doc comment
PM / Domains: Stop deferring probe at the end of initcall
iommu: Remove IOMMU_OF_DECLARE
iommu: Stop deferring probe at end of initcalls
pinctrl: Support stopping deferred probe after initcalls
dt-bindings: pinctrl: add a 'pinctrl-use-default' property
driver core: allow stopping deferred probe after init
driver core: add a debugfs entry to show deferred devices
sysfs: Fix internal_create_group() for named group updates
base: fix order of OF initialization
linux/device.h: fix kernel-doc notation warning
Documentation: update firmware loader fallback reference
kobject: Replace strncpy with memcpy
drivers: base: cacheinfo: use OF property_read_u32 instead of get_property,read_number
kernfs: Replace strncpy with memcpy
device: Add #define dev_fmt similar to #define pr_fmt
...
This change allows creating kernfs files and directories with arbitrary
uid/gid instead of always using GLOBAL_ROOT_UID/GID by extending
kernfs_create_dir_ns() and kernfs_create_file_ns() with uid/gid arguments.
The "simple" kernfs_create_file() and kernfs_create_dir() are left alone
and always create objects belonging to the global root.
When creating symlinks ownership (uid/gid) is taken from the target kernfs
object.
Co-Developed-by: Tyler Hicks <tyhicks@canonical.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Tyler Hicks <tyhicks@canonical.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
gcc 8.1.0 complains:
fs/kernfs/symlink.c:91:3: warning:
'strncpy' output truncated before terminating nul copying
as many bytes from a string as its length
fs/kernfs/symlink.c: In function 'kernfs_iop_get_link':
fs/kernfs/symlink.c:88:14: note: length computed here
Using strncpy() is indeed less than perfect since the length of data to
be copied has already been determined with strlen(). Replace strncpy()
with memcpy() to address the warning and optimize the code a little.
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Acked-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This is a late set of changes from Deepa Dinamani doing an automated
treewide conversion of the inode and iattr structures from 'timespec'
to 'timespec64', to push the conversion from the VFS layer into the
individual file systems.
There were no conflicts between this and the contents of linux-next
until just before the merge window, when we saw multiple problems:
- A minor conflict with my own y2038 fixes, which I could address
by adding another patch on top here.
- One semantic conflict with late changes to the NFS tree. I addressed
this by merging Deepa's original branch on top of the changes that
now got merged into mainline and making sure the merge commit includes
the necessary changes as produced by coccinelle.
- A trivial conflict against the removal of staging/lustre.
- Multiple conflicts against the VFS changes in the overlayfs tree.
These are still part of linux-next, but apparently this is no longer
intended for 4.18 [1], so I am ignoring that part.
As Deepa writes:
The series aims to switch vfs timestamps to use struct timespec64.
Currently vfs uses struct timespec, which is not y2038 safe.
The series involves the following:
1. Add vfs helper functions for supporting struct timepec64 timestamps.
2. Cast prints of vfs timestamps to avoid warnings after the switch.
3. Simplify code using vfs timestamps so that the actual
replacement becomes easy.
4. Convert vfs timestamps to use struct timespec64 using a script.
This is a flag day patch.
Next steps:
1. Convert APIs that can handle timespec64, instead of converting
timestamps at the boundaries.
2. Update internal data structures to avoid timestamp conversions.
Thomas Gleixner adds:
I think there is no point to drag that out for the next merge window.
The whole thing needs to be done in one go for the core changes which
means that you're going to play that catchup game forever. Let's get
over with it towards the end of the merge window.
[1] https://www.spinics.net/lists/linux-fsdevel/msg128294.html
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1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=CZX2
-----END PGP SIGNATURE-----
Merge tag 'vfs-timespec64' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/playground
Pull inode timestamps conversion to timespec64 from Arnd Bergmann:
"This is a late set of changes from Deepa Dinamani doing an automated
treewide conversion of the inode and iattr structures from 'timespec'
to 'timespec64', to push the conversion from the VFS layer into the
individual file systems.
As Deepa writes:
'The series aims to switch vfs timestamps to use struct timespec64.
Currently vfs uses struct timespec, which is not y2038 safe.
The series involves the following:
1. Add vfs helper functions for supporting struct timepec64
timestamps.
2. Cast prints of vfs timestamps to avoid warnings after the switch.
3. Simplify code using vfs timestamps so that the actual replacement
becomes easy.
4. Convert vfs timestamps to use struct timespec64 using a script.
This is a flag day patch.
Next steps:
1. Convert APIs that can handle timespec64, instead of converting
timestamps at the boundaries.
2. Update internal data structures to avoid timestamp conversions'
Thomas Gleixner adds:
'I think there is no point to drag that out for the next merge
window. The whole thing needs to be done in one go for the core
changes which means that you're going to play that catchup game
forever. Let's get over with it towards the end of the merge window'"
* tag 'vfs-timespec64' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/playground:
pstore: Remove bogus format string definition
vfs: change inode times to use struct timespec64
pstore: Convert internal records to timespec64
udf: Simplify calls to udf_disk_stamp_to_time
fs: nfs: get rid of memcpys for inode times
ceph: make inode time prints to be long long
lustre: Use long long type to print inode time
fs: add timespec64_truncate()
Pull the timespec64 conversion from Deepa Dinamani:
"The series aims to switch vfs timestamps to use
struct timespec64. Currently vfs uses struct timespec,
which is not y2038 safe.
The flag patch applies cleanly. I've not seen the timestamps
update logic change often. The series applies cleanly on 4.17-rc6
and linux-next tip (top commit: next-20180517).
I'm not sure how to merge this kind of a series with a flag patch.
We are targeting 4.18 for this.
Let me know if you have other suggestions.
The series involves the following:
1. Add vfs helper functions for supporting struct timepec64 timestamps.
2. Cast prints of vfs timestamps to avoid warnings after the switch.
3. Simplify code using vfs timestamps so that the actual
replacement becomes easy.
4. Convert vfs timestamps to use struct timespec64 using a script.
This is a flag day patch.
I've tried to keep the conversions with the script simple, to
aid in the reviews. I've kept all the internal filesystem data
structures and function signatures the same.
Next steps:
1. Convert APIs that can handle timespec64, instead of converting
timestamps at the boundaries.
2. Update internal data structures to avoid timestamp conversions."
I've pulled it into a branch based on top of the NFS changes that
are now in mainline, so I could resolve the non-obvious conflict
between the two while merging.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Here is the driver core patchset for 4.18-rc1.
The large chunk of these are firmware core documentation and api
updates. Nothing major there, just better descriptions for others to be
able to understand the firmware code better. There's also a user for a
new firmware api call.
Other than that, there are some minor updates for debugfs, kernfs, and
the driver core itself.
All of these have been in linux-next for a while with no reported
issues.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-----BEGIN PGP SIGNATURE-----
iG0EABECAC0WIQT0tgzFv3jCIUoxPcsxR9QN2y37KQUCWxbZAg8cZ3JlZ0Brcm9h
aC5jb20ACgkQMUfUDdst+ykbiACgu/2qqou1iV4GxOkvrj5wfsHD+lYAoNPNNDHu
Qf3CCEKbxogF6YowDiAH
=Dsqq
-----END PGP SIGNATURE-----
Merge tag 'driver-core-4.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
Pull driver core updates from Greg KH:
"Here is the driver core patchset for 4.18-rc1.
The large chunk of these are firmware core documentation and api
updates. Nothing major there, just better descriptions for others to
be able to understand the firmware code better. There's also a user
for a new firmware api call.
Other than that, there are some minor updates for debugfs, kernfs, and
the driver core itself.
All of these have been in linux-next for a while with no reported
issues"
* tag 'driver-core-4.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (23 commits)
driver core: hold dev's parent lock when needed
driver-core: return EINVAL error instead of BUG_ON()
driver core: add __printf verification to device_create_groups_vargs
mm: memory_hotplug: use put_device() if device_register fail
base: core: fix typo 'can by' to 'can be'
debugfs: inode: debugfs_create_dir uses mode permission from parent
debugfs: Re-use kstrtobool_from_user()
Documentation: clarify firmware_class provenance and why we can't rename the module
Documentation: remove stale firmware API reference
Documentation: fix few typos and clarifications for the firmware loader
ath10k: re-enable the firmware fallback mechanism for testmode
ath10k: use firmware_request_nowarn() to load firmware
firmware: add firmware_request_nowarn() - load firmware without warnings
firmware_loader: make firmware_fallback_sysfs() print more useful
firmware_loader: move kconfig FW_LOADER entries to its own file
firmware_loader: replace ---help--- with help
firmware_loader: enhance Kconfig documentation over FW_LOADER
firmware_loader: document firmware_sysfs_fallback()
firmware: rename fw_sysfs_fallback to firmware_fallback_sysfs()
firmware: use () to terminate kernel-doc function names
...
Use new return type vm_fault_t for page_mkwrite and
fault handler. For now, this is just documenting that
the function returns a VM_FAULT value rather than an
errno. Once all instances are converted, vm_fault_t
will become a distinct type.
Reference id -> 1c8f422059 ("mm: change return type to
vm_fault_t")
Signed-off-by: Souptick Joarder <jrdr.linux@gmail.com>
Reviewed-by: Matthew Wilcox <mawilcox@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This is the mindless scripted replacement of kernel use of POLL*
variables as described by Al, done by this script:
for V in IN OUT PRI ERR RDNORM RDBAND WRNORM WRBAND HUP RDHUP NVAL MSG; do
L=`git grep -l -w POLL$V | grep -v '^t' | grep -v /um/ | grep -v '^sa' | grep -v '/poll.h$'|grep -v '^D'`
for f in $L; do sed -i "-es/^\([^\"]*\)\(\<POLL$V\>\)/\\1E\\2/" $f; done
done
with de-mangling cleanups yet to come.
NOTE! On almost all architectures, the EPOLL* constants have the same
values as the POLL* constants do. But they keyword here is "almost".
For various bad reasons they aren't the same, and epoll() doesn't
actually work quite correctly in some cases due to this on Sparc et al.
The next patch from Al will sort out the final differences, and we
should be all done.
Scripted-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Pull misc vfs fixes from Al Viro.
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
seq_file: fix incomplete reset on read from zero offset
kernfs: fix regression in kernfs_fop_write caused by wrong type
Pull poll annotations from Al Viro:
"This introduces a __bitwise type for POLL### bitmap, and propagates
the annotations through the tree. Most of that stuff is as simple as
'make ->poll() instances return __poll_t and do the same to local
variables used to hold the future return value'.
Some of the obvious brainos found in process are fixed (e.g. POLLIN
misspelled as POLL_IN). At that point the amount of sparse warnings is
low and most of them are for genuine bugs - e.g. ->poll() instance
deciding to return -EINVAL instead of a bitmap. I hadn't touched those
in this series - it's large enough as it is.
Another problem it has caught was eventpoll() ABI mess; select.c and
eventpoll.c assumed that corresponding POLL### and EPOLL### were
equal. That's true for some, but not all of them - EPOLL### are
arch-independent, but POLL### are not.
The last commit in this series separates userland POLL### values from
the (now arch-independent) kernel-side ones, converting between them
in the few places where they are copied to/from userland. AFAICS, this
is the least disruptive fix preserving poll(2) ABI and making epoll()
work on all architectures.
As it is, it's simply broken on sparc - try to give it EPOLLWRNORM and
it will trigger only on what would've triggered EPOLLWRBAND on other
architectures. EPOLLWRBAND and EPOLLRDHUP, OTOH, are never triggered
at all on sparc. With this patch they should work consistently on all
architectures"
* 'misc.poll' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (37 commits)
make kernel-side POLL... arch-independent
eventpoll: no need to mask the result of epi_item_poll() again
eventpoll: constify struct epoll_event pointers
debugging printk in sg_poll() uses %x to print POLL... bitmap
annotate poll(2) guts
9p: untangle ->poll() mess
->si_band gets POLL... bitmap stored into a user-visible long field
ring_buffer_poll_wait() return value used as return value of ->poll()
the rest of drivers/*: annotate ->poll() instances
media: annotate ->poll() instances
fs: annotate ->poll() instances
ipc, kernel, mm: annotate ->poll() instances
net: annotate ->poll() instances
apparmor: annotate ->poll() instances
tomoyo: annotate ->poll() instances
sound: annotate ->poll() instances
acpi: annotate ->poll() instances
crypto: annotate ->poll() instances
block: annotate ->poll() instances
x86: annotate ->poll() instances
...
Commit b7ce40cff0 ("kernfs: cache atomic_write_len in
kernfs_open_file") changes type of local variable 'len' from ssize_t
to size_t. This change caused that the *ppos value is updated also
when the previous write callback failed.
Mentioned snippet:
...
len = ops->write(...); <- return value can be negative
...
if (len > 0) <- true here in this case
*ppos += len;
...
Fixes: b7ce40cff0 ("kernfs: cache atomic_write_len in kernfs_open_file")
Acked-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Ivan Vecera <ivecera@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This is a pure automated search-and-replace of the internal kernel
superblock flags.
The s_flags are now called SB_*, with the names and the values for the
moment mirroring the MS_* flags that they're equivalent to.
Note how the MS_xyz flags are the ones passed to the mount system call,
while the SB_xyz flags are what we then use in sb->s_flags.
The script to do this was:
# places to look in; re security/*: it generally should *not* be
# touched (that stuff parses mount(2) arguments directly), but
# there are two places where we really deal with superblock flags.
FILES="drivers/mtd drivers/staging/lustre fs ipc mm \
include/linux/fs.h include/uapi/linux/bfs_fs.h \
security/apparmor/apparmorfs.c security/apparmor/include/lib.h"
# the list of MS_... constants
SYMS="RDONLY NOSUID NODEV NOEXEC SYNCHRONOUS REMOUNT MANDLOCK \
DIRSYNC NOATIME NODIRATIME BIND MOVE REC VERBOSE SILENT \
POSIXACL UNBINDABLE PRIVATE SLAVE SHARED RELATIME KERNMOUNT \
I_VERSION STRICTATIME LAZYTIME SUBMOUNT NOREMOTELOCK NOSEC BORN \
ACTIVE NOUSER"
SED_PROG=
for i in $SYMS; do SED_PROG="$SED_PROG -e s/MS_$i/SB_$i/g"; done
# we want files that contain at least one of MS_...,
# with fs/namespace.c and fs/pnode.c excluded.
L=$(for i in $SYMS; do git grep -w -l MS_$i $FILES; done| sort|uniq|grep -v '^fs/namespace.c'|grep -v '^fs/pnode.c')
for f in $L; do sed -i $f $SED_PROG; done
Requested-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Pull block layer updates from Jens Axboe:
"This is the first pull request for 4.14, containing most of the code
changes. It's a quiet series this round, which I think we needed after
the churn of the last few series. This contains:
- Fix for a registration race in loop, from Anton Volkov.
- Overflow complaint fix from Arnd for DAC960.
- Series of drbd changes from the usual suspects.
- Conversion of the stec/skd driver to blk-mq. From Bart.
- A few BFQ improvements/fixes from Paolo.
- CFQ improvement from Ritesh, allowing idling for group idle.
- A few fixes found by Dan's smatch, courtesy of Dan.
- A warning fixup for a race between changing the IO scheduler and
device remova. From David Jeffery.
- A few nbd fixes from Josef.
- Support for cgroup info in blktrace, from Shaohua.
- Also from Shaohua, new features in the null_blk driver to allow it
to actually hold data, among other things.
- Various corner cases and error handling fixes from Weiping Zhang.
- Improvements to the IO stats tracking for blk-mq from me. Can
drastically improve performance for fast devices and/or big
machines.
- Series from Christoph removing bi_bdev as being needed for IO
submission, in preparation for nvme multipathing code.
- Series from Bart, including various cleanups and fixes for switch
fall through case complaints"
* 'for-4.14/block' of git://git.kernel.dk/linux-block: (162 commits)
kernfs: checking for IS_ERR() instead of NULL
drbd: remove BIOSET_NEED_RESCUER flag from drbd_{md_,}io_bio_set
drbd: Fix allyesconfig build, fix recent commit
drbd: switch from kmalloc() to kmalloc_array()
drbd: abort drbd_start_resync if there is no connection
drbd: move global variables to drbd namespace and make some static
drbd: rename "usermode_helper" to "drbd_usermode_helper"
drbd: fix race between handshake and admin disconnect/down
drbd: fix potential deadlock when trying to detach during handshake
drbd: A single dot should be put into a sequence.
drbd: fix rmmod cleanup, remove _all_ debugfs entries
drbd: Use setup_timer() instead of init_timer() to simplify the code.
drbd: fix potential get_ldev/put_ldev refcount imbalance during attach
drbd: new disk-option disable-write-same
drbd: Fix resource role for newly created resources in events2
drbd: mark symbols static where possible
drbd: Send P_NEG_ACK upon write error in protocol != C
drbd: add explicit plugging when submitting batches
drbd: change list_for_each_safe to while(list_first_entry_or_null)
drbd: introduce drbd_recv_header_maybe_unplug
...
The reference count in kernfs_node structure is treated like a rwsem by
using lockdep instrumentation code. The lockdep name, however, is still
"s_active" which is carried over from the old sysfs code. As s_active
is no longer the variable name, its use may confuse users on where the
lock is when it is reported by lockdep. So it is changed to "kn->count"
which is how this variable is normally referenced in kernfs code.
Signed-off-by: Waiman Long <longman@redhat.com>
Acked-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
By default we output cgroup id in blktrace. This adds an option to
display cgroup path. Since get cgroup path is a relativly heavy
operation, we don't enable it by default.
with the option enabled, blktrace will output something like this:
dd-1353 [007] d..2 293.015252: 8,0 /test/level D R 24 + 8 [dd]
Signed-off-by: Shaohua Li <shli@fb.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Now we have the facilities to implement exportfs operations. The idea is
cgroup can export the fhandle info to userspace, then userspace uses
fhandle to find the cgroup name. Another example is userspace can get
fhandle for a cgroup and BPF uses the fhandle to filter info for the
cgroup.
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Shaohua Li <shli@fb.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
inode number and generation can identify a kernfs node. We are going to
export the identification by exportfs operations, so put ino and
generation into a separate structure. It's convenient when later patches
use the identification.
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Shaohua Li <shli@fb.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
When working on adding exportfs operations in kernfs, I found it's hard
to initialize dentry->d_fsdata in the exportfs operations. Looks there
is no way to do it without race condition. Look at the kernfs code
closely, there is no point to set dentry->d_fsdata. inode->i_private
already points to kernfs_node, and we can get inode from a dentry. So
this patch just delete the d_fsdata usage.
Acked-by: Tejun Heo <tj@kernel.org>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Shaohua Li <shli@fb.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Add an API to get kernfs node from inode number. We will need this to
implement exportfs operations.
This API will be used in blktrace too later, so it should be as fast as
possible. To make the API lock free, kernfs node is freed in RCU
context. And we depend on kernfs_node count/ino number to filter out
stale kernfs nodes.
Acked-by: Tejun Heo <tj@kernel.org>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Shaohua Li <shli@fb.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Set i_generation for kernfs inode. This is required to implement
exportfs operations. The generation is 32-bit, so it's possible the
generation wraps up and we find stale files. To reduce the posssibility,
we don't reuse inode numer immediately. When the inode number allocation
wraps, we increase generation number. In this way generation/inode
number consist of a 64-bit number which is unlikely duplicated. This
does make the idr tree more sparse and waste some memory. Since idr
manages 32-bit keys, idr uses a 6-level radix tree, each level covers 6
bits of the key. In a 100k inode kernfs, the worst case will have around
300k radix tree node. Each node is 576bytes, so the tree will use about
~150M memory. Sounds not too bad, if this really is a problem, we should
find better data structure.
Acked-by: Tejun Heo <tj@kernel.org>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Shaohua Li <shli@fb.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
kernfs uses ida to manage inode number. The problem is we can't get
kernfs_node from inode number with ida. Switching to use idr, next patch
will add an API to get kernfs_node from inode number.
Acked-by: Tejun Heo <tj@kernel.org>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Shaohua Li <shli@fb.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Recently started seeing a kernel oops when a module tries removing a
memory mapped sysfs bin_attribute. On closer investigation the root
cause seems to be kernfs_release_file() trying to call
kernfs_op.release() callback that's NULL for such sysfs
bin_attributes. The oops occurs when kernfs_release_file() is called from
kernfs_drain_open_files() to cleanup any open handles with active
memory mappings.
The patch fixes this by checking for flag KERNFS_HAS_RELEASE before
calling kernfs_release_file() in function kernfs_drain_open_files().
On ppc64-le arch with cxl module the oops back-trace is of the
form below:
[ 861.381126] Unable to handle kernel paging request for instruction fetch
[ 861.381360] Faulting instruction address: 0x00000000
[ 861.381428] Oops: Kernel access of bad area, sig: 11 [#1]
....
[ 861.382481] NIP: 0000000000000000 LR: c000000000362c60 CTR:
0000000000000000
....
Call Trace:
[c000000f1680b750] [c000000000362c34] kernfs_drain_open_files+0x104/0x1d0 (unreliable)
[c000000f1680b790] [c00000000035fa00] __kernfs_remove+0x260/0x2c0
[c000000f1680b820] [c000000000360da0] kernfs_remove_by_name_ns+0x60/0xe0
[c000000f1680b8b0] [c0000000003638f4] sysfs_remove_bin_file+0x24/0x40
[c000000f1680b8d0] [c00000000062a164] device_remove_bin_file+0x24/0x40
[c000000f1680b8f0] [d000000009b7b22c] cxl_sysfs_afu_remove+0x144/0x170 [cxl]
[c000000f1680b940] [d000000009b7c7e4] cxl_remove+0x6c/0x1a0 [cxl]
[c000000f1680b990] [c00000000052f694] pci_device_remove+0x64/0x110
[c000000f1680b9d0] [c0000000006321d4] device_release_driver_internal+0x1f4/0x2b0
[c000000f1680ba20] [c000000000525cb0] pci_stop_bus_device+0xa0/0xd0
[c000000f1680ba60] [c000000000525e80] pci_stop_and_remove_bus_device+0x20/0x40
[c000000f1680ba90] [c00000000004a6c4] pci_hp_remove_devices+0x84/0xc0
[c000000f1680bad0] [c00000000004a688] pci_hp_remove_devices+0x48/0xc0
[c000000f1680bb10] [c0000000009dfda4] eeh_reset_device+0xb0/0x290
[c000000f1680bbb0] [c000000000032b4c] eeh_handle_normal_event+0x47c/0x530
[c000000f1680bc60] [c000000000032e64] eeh_handle_event+0x174/0x350
[c000000f1680bd10] [c000000000033228] eeh_event_handler+0x1e8/0x1f0
[c000000f1680bdc0] [c0000000000d384c] kthread+0x14c/0x190
[c000000f1680be30] [c00000000000b5a0] ret_from_kernel_thread+0x5c/0xbc
Fixes: f83f3c5156 ("kernfs: fix locking around kernfs_ops->release() callback")
Signed-off-by: Vaibhav Jain <vaibhav@linux.vnet.ibm.com>
Acked-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Pull vfs 'statx()' update from Al Viro.
This adds the new extended stat() interface that internally subsumes our
previous stat interfaces, and allows user mode to specify in more detail
what kind of information it wants.
It also allows for some explicit synchronization information to be
passed to the filesystem, which can be relevant for network filesystems:
is the cached value ok, or do you need open/close consistency, or what?
From David Howells.
Andreas Dilger points out that the first version of the extended statx
interface was posted June 29, 2010:
https://www.spinics.net/lists/linux-fsdevel/msg33831.html
* 'rebased-statx' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
statx: Add a system call to make enhanced file info available
Add a system call to make extended file information available, including
file creation and some attribute flags where available through the
underlying filesystem.
The getattr inode operation is altered to take two additional arguments: a
u32 request_mask and an unsigned int flags that indicate the
synchronisation mode. This change is propagated to the vfs_getattr*()
function.
Functions like vfs_stat() are now inline wrappers around new functions
vfs_statx() and vfs_statx_fd() to reduce stack usage.
========
OVERVIEW
========
The idea was initially proposed as a set of xattrs that could be retrieved
with getxattr(), but the general preference proved to be for a new syscall
with an extended stat structure.
A number of requests were gathered for features to be included. The
following have been included:
(1) Make the fields a consistent size on all arches and make them large.
(2) Spare space, request flags and information flags are provided for
future expansion.
(3) Better support for the y2038 problem [Arnd Bergmann] (tv_sec is an
__s64).
(4) Creation time: The SMB protocol carries the creation time, which could
be exported by Samba, which will in turn help CIFS make use of
FS-Cache as that can be used for coherency data (stx_btime).
This is also specified in NFSv4 as a recommended attribute and could
be exported by NFSD [Steve French].
(5) Lightweight stat: Ask for just those details of interest, and allow a
netfs (such as NFS) to approximate anything not of interest, possibly
without going to the server [Trond Myklebust, Ulrich Drepper, Andreas
Dilger] (AT_STATX_DONT_SYNC).
(6) Heavyweight stat: Force a netfs to go to the server, even if it thinks
its cached attributes are up to date [Trond Myklebust]
(AT_STATX_FORCE_SYNC).
And the following have been left out for future extension:
(7) Data version number: Could be used by userspace NFS servers [Aneesh
Kumar].
Can also be used to modify fill_post_wcc() in NFSD which retrieves
i_version directly, but has just called vfs_getattr(). It could get
it from the kstat struct if it used vfs_xgetattr() instead.
(There's disagreement on the exact semantics of a single field, since
not all filesystems do this the same way).
(8) BSD stat compatibility: Including more fields from the BSD stat such
as creation time (st_btime) and inode generation number (st_gen)
[Jeremy Allison, Bernd Schubert].
(9) Inode generation number: Useful for FUSE and userspace NFS servers
[Bernd Schubert].
(This was asked for but later deemed unnecessary with the
open-by-handle capability available and caused disagreement as to
whether it's a security hole or not).
(10) Extra coherency data may be useful in making backups [Andreas Dilger].
(No particular data were offered, but things like last backup
timestamp, the data version number and the DOS archive bit would come
into this category).
(11) Allow the filesystem to indicate what it can/cannot provide: A
filesystem can now say it doesn't support a standard stat feature if
that isn't available, so if, for instance, inode numbers or UIDs don't
exist or are fabricated locally...
(This requires a separate system call - I have an fsinfo() call idea
for this).
(12) Store a 16-byte volume ID in the superblock that can be returned in
struct xstat [Steve French].
(Deferred to fsinfo).
(13) Include granularity fields in the time data to indicate the
granularity of each of the times (NFSv4 time_delta) [Steve French].
(Deferred to fsinfo).
(14) FS_IOC_GETFLAGS value. These could be translated to BSD's st_flags.
Note that the Linux IOC flags are a mess and filesystems such as Ext4
define flags that aren't in linux/fs.h, so translation in the kernel
may be a necessity (or, possibly, we provide the filesystem type too).
(Some attributes are made available in stx_attributes, but the general
feeling was that the IOC flags were to ext[234]-specific and shouldn't
be exposed through statx this way).
(15) Mask of features available on file (eg: ACLs, seclabel) [Brad Boyer,
Michael Kerrisk].
(Deferred, probably to fsinfo. Finding out if there's an ACL or
seclabal might require extra filesystem operations).
(16) Femtosecond-resolution timestamps [Dave Chinner].
(A __reserved field has been left in the statx_timestamp struct for
this - if there proves to be a need).
(17) A set multiple attributes syscall to go with this.
===============
NEW SYSTEM CALL
===============
The new system call is:
int ret = statx(int dfd,
const char *filename,
unsigned int flags,
unsigned int mask,
struct statx *buffer);
The dfd, filename and flags parameters indicate the file to query, in a
similar way to fstatat(). There is no equivalent of lstat() as that can be
emulated with statx() by passing AT_SYMLINK_NOFOLLOW in flags. There is
also no equivalent of fstat() as that can be emulated by passing a NULL
filename to statx() with the fd of interest in dfd.
Whether or not statx() synchronises the attributes with the backing store
can be controlled by OR'ing a value into the flags argument (this typically
only affects network filesystems):
(1) AT_STATX_SYNC_AS_STAT tells statx() to behave as stat() does in this
respect.
(2) AT_STATX_FORCE_SYNC will require a network filesystem to synchronise
its attributes with the server - which might require data writeback to
occur to get the timestamps correct.
(3) AT_STATX_DONT_SYNC will suppress synchronisation with the server in a
network filesystem. The resulting values should be considered
approximate.
mask is a bitmask indicating the fields in struct statx that are of
interest to the caller. The user should set this to STATX_BASIC_STATS to
get the basic set returned by stat(). It should be noted that asking for
more information may entail extra I/O operations.
buffer points to the destination for the data. This must be 256 bytes in
size.
======================
MAIN ATTRIBUTES RECORD
======================
The following structures are defined in which to return the main attribute
set:
struct statx_timestamp {
__s64 tv_sec;
__s32 tv_nsec;
__s32 __reserved;
};
struct statx {
__u32 stx_mask;
__u32 stx_blksize;
__u64 stx_attributes;
__u32 stx_nlink;
__u32 stx_uid;
__u32 stx_gid;
__u16 stx_mode;
__u16 __spare0[1];
__u64 stx_ino;
__u64 stx_size;
__u64 stx_blocks;
__u64 __spare1[1];
struct statx_timestamp stx_atime;
struct statx_timestamp stx_btime;
struct statx_timestamp stx_ctime;
struct statx_timestamp stx_mtime;
__u32 stx_rdev_major;
__u32 stx_rdev_minor;
__u32 stx_dev_major;
__u32 stx_dev_minor;
__u64 __spare2[14];
};
The defined bits in request_mask and stx_mask are:
STATX_TYPE Want/got stx_mode & S_IFMT
STATX_MODE Want/got stx_mode & ~S_IFMT
STATX_NLINK Want/got stx_nlink
STATX_UID Want/got stx_uid
STATX_GID Want/got stx_gid
STATX_ATIME Want/got stx_atime{,_ns}
STATX_MTIME Want/got stx_mtime{,_ns}
STATX_CTIME Want/got stx_ctime{,_ns}
STATX_INO Want/got stx_ino
STATX_SIZE Want/got stx_size
STATX_BLOCKS Want/got stx_blocks
STATX_BASIC_STATS [The stuff in the normal stat struct]
STATX_BTIME Want/got stx_btime{,_ns}
STATX_ALL [All currently available stuff]
stx_btime is the file creation time, stx_mask is a bitmask indicating the
data provided and __spares*[] are where as-yet undefined fields can be
placed.
Time fields are structures with separate seconds and nanoseconds fields
plus a reserved field in case we want to add even finer resolution. Note
that times will be negative if before 1970; in such a case, the nanosecond
fields will also be negative if not zero.
The bits defined in the stx_attributes field convey information about a
file, how it is accessed, where it is and what it does. The following
attributes map to FS_*_FL flags and are the same numerical value:
STATX_ATTR_COMPRESSED File is compressed by the fs
STATX_ATTR_IMMUTABLE File is marked immutable
STATX_ATTR_APPEND File is append-only
STATX_ATTR_NODUMP File is not to be dumped
STATX_ATTR_ENCRYPTED File requires key to decrypt in fs
Within the kernel, the supported flags are listed by:
KSTAT_ATTR_FS_IOC_FLAGS
[Are any other IOC flags of sufficient general interest to be exposed
through this interface?]
New flags include:
STATX_ATTR_AUTOMOUNT Object is an automount trigger
These are for the use of GUI tools that might want to mark files specially,
depending on what they are.
Fields in struct statx come in a number of classes:
(0) stx_dev_*, stx_blksize.
These are local system information and are always available.
(1) stx_mode, stx_nlinks, stx_uid, stx_gid, stx_[amc]time, stx_ino,
stx_size, stx_blocks.
These will be returned whether the caller asks for them or not. The
corresponding bits in stx_mask will be set to indicate whether they
actually have valid values.
If the caller didn't ask for them, then they may be approximated. For
example, NFS won't waste any time updating them from the server,
unless as a byproduct of updating something requested.
If the values don't actually exist for the underlying object (such as
UID or GID on a DOS file), then the bit won't be set in the stx_mask,
even if the caller asked for the value. In such a case, the returned
value will be a fabrication.
Note that there are instances where the type might not be valid, for
instance Windows reparse points.
(2) stx_rdev_*.
This will be set only if stx_mode indicates we're looking at a
blockdev or a chardev, otherwise will be 0.
(3) stx_btime.
Similar to (1), except this will be set to 0 if it doesn't exist.
=======
TESTING
=======
The following test program can be used to test the statx system call:
samples/statx/test-statx.c
Just compile and run, passing it paths to the files you want to examine.
The file is built automatically if CONFIG_SAMPLES is enabled.
Here's some example output. Firstly, an NFS directory that crosses to
another FSID. Note that the AUTOMOUNT attribute is set because transiting
this directory will cause d_automount to be invoked by the VFS.
[root@andromeda ~]# /tmp/test-statx -A /warthog/data
statx(/warthog/data) = 0
results=7ff
Size: 4096 Blocks: 8 IO Block: 1048576 directory
Device: 00:26 Inode: 1703937 Links: 125
Access: (3777/drwxrwxrwx) Uid: 0 Gid: 4041
Access: 2016-11-24 09:02:12.219699527+0000
Modify: 2016-11-17 10:44:36.225653653+0000
Change: 2016-11-17 10:44:36.225653653+0000
Attributes: 0000000000001000 (-------- -------- -------- -------- -------- -------- ---m---- --------)
Secondly, the result of automounting on that directory.
[root@andromeda ~]# /tmp/test-statx /warthog/data
statx(/warthog/data) = 0
results=7ff
Size: 4096 Blocks: 8 IO Block: 1048576 directory
Device: 00:27 Inode: 2 Links: 125
Access: (3777/drwxrwxrwx) Uid: 0 Gid: 4041
Access: 2016-11-24 09:02:12.219699527+0000
Modify: 2016-11-17 10:44:36.225653653+0000
Change: 2016-11-17 10:44:36.225653653+0000
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Update code that relied on sched.h including various MM types for them.
This will allow us to remove the <linux/mm_types.h> include from <linux/sched.h>.
Acked-by: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Pull cgroup updates from Tejun Heo:
"Several noteworthy changes.
- Parav's rdma controller is finally merged. It is very straight
forward and can limit the abosolute numbers of common rdma
constructs used by different cgroups.
- kernel/cgroup.c got too chubby and disorganized. Created
kernel/cgroup/ subdirectory and moved all cgroup related files
under kernel/ there and reorganized the core code. This hurts for
backporting patches but was long overdue.
- cgroup v2 process listing reimplemented so that it no longer
depends on allocating a buffer large enough to cache the entire
result to sort and uniq the output. v2 has always mangled the sort
order to ensure that users don't depend on the sorted output, so
this shouldn't surprise anybody. This makes the pid listing
functions use the same iterators that are used internally, which
have to have the same iterating capabilities anyway.
- perf cgroup filtering now works automatically on cgroup v2. This
patch was posted a long time ago but somehow fell through the
cracks.
- misc fixes asnd documentation updates"
* 'for-4.11' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup: (27 commits)
kernfs: fix locking around kernfs_ops->release() callback
cgroup: drop the matching uid requirement on migration for cgroup v2
cgroup, perf_event: make perf_event controller work on cgroup2 hierarchy
cgroup: misc cleanups
cgroup: call subsys->*attach() only for subsystems which are actually affected by migration
cgroup: track migration context in cgroup_mgctx
cgroup: cosmetic update to cgroup_taskset_add()
rdmacg: Fixed uninitialized current resource usage
cgroup: Add missing cgroup-v2 PID controller documentation.
rdmacg: Added documentation for rdmacg
IB/core: added support to use rdma cgroup controller
rdmacg: Added rdma cgroup controller
cgroup: fix a comment typo
cgroup: fix RCU related sparse warnings
cgroup: move namespace code to kernel/cgroup/namespace.c
cgroup: rename functions for consistency
cgroup: move v1 mount functions to kernel/cgroup/cgroup-v1.c
cgroup: separate out cgroup1_kf_syscall_ops
cgroup: refactor mount path and clearly distinguish v1 and v2 paths
cgroup: move cgroup v1 specific code to kernel/cgroup/cgroup-v1.c
...
->fault(), ->page_mkwrite(), and ->pfn_mkwrite() calls do not need to
take a vma and vmf parameter when the vma already resides in vmf.
Remove the vma parameter to simplify things.
[arnd@arndb.de: fix ARM build]
Link: http://lkml.kernel.org/r/20170125223558.1451224-1-arnd@arndb.de
Link: http://lkml.kernel.org/r/148521301778.19116.10840599906674778980.stgit@djiang5-desk3.ch.intel.com
Signed-off-by: Dave Jiang <dave.jiang@intel.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Ross Zwisler <ross.zwisler@linux.intel.com>
Cc: Theodore Ts'o <tytso@mit.edu>
Cc: Darrick J. Wong <darrick.wong@oracle.com>
Cc: Matthew Wilcox <mawilcox@microsoft.com>
Cc: Dave Hansen <dave.hansen@intel.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Jan Kara <jack@suse.com>
Cc: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
The release callback may be called from two places - file release
operation and kernfs open file draining. kernfs_open_file->mutex is
used to synchronize the two callsites. This unfortunately leads to
possible circular locking because of->mutex is used to protect the
usual kernfs operations which may use locking constructs which are
held while removing and thus draining kernfs files.
@of->mutex is for synchronizing concurrent kernfs access operations
and all we need here is synchronization between the releaes and drain
paths. As the drain path has to grab kernfs_open_file_mutex anyway,
let's use the mutex to synchronize the release operation instead.
Signed-off-by: Tejun Heo <tj@kernel.org>
Reported-and-tested-by: Tony Lindgren <tony@atomide.com>
Fixes: 0e67db2f9f ("kernfs: add kernfs_ops->open/release() callbacks")
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Null kernfs nodes could be found at cgroups during construction.
It seems safer to handle these null pointers right in kernfs in
the same way as printf prints "(null)" for null pointer string.
Signed-off-by: Konstantin Khlebnikov <khlebnikov@yandex-team.ru>
Acked-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Add ->open/release() methods to kernfs_ops. ->open() is called when
the file is opened and ->release() when the file is either released or
severed. These callbacks can be used, for example, to manage
persistent caching objects over multiple seq_file iterations.
Signed-off-by: Tejun Heo <tj@kernel.org>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Acked-by: Zefan Li <lizefan@huawei.com>
More kernfs_open_file->mutex synchronized flags are planned to be
added. Convert ->mmapped to a bitfield in preparation.
While at it, make kernfs_fop_mmap() use "true" instead of "1" on
->mmapped.
Signed-off-by: Tejun Heo <tj@kernel.org>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Acked-by: Zefan Li <lizefan@huawei.com>
Pull partial readlink cleanups from Miklos Szeredi.
This is the uncontroversial part of the readlink cleanup patch-set that
simplifies the default readlink handling.
Miklos and Al are still discussing the rest of the series.
* git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/vfs:
vfs: make generic_readlink() static
vfs: remove ".readlink = generic_readlink" assignments
vfs: default to generic_readlink()
vfs: replace calling i_op->readlink with vfs_readlink()
proc/self: use generic_readlink
ecryptfs: use vfs_get_link()
bad_inode: add missing i_op initializers
If .readlink == NULL implies generic_readlink().
Generated by:
to_del="\.readlink.*=.*generic_readlink"
for i in `git grep -l $to_del`; do sed -i "/$to_del"/d $i; done
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
This was spotted by the 'sparse' static checker.
Signed-off-by: Bart Van Assche <bart.vanassche@sandisk.com>
Cc: Andreas Gruenbacher <agruenba@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
If you edit a kernfs backed file with vi(1), you see an ugly error
message when you write the file because vi tries to fsync(2) the
file after writing, which fails.
We have noop_fsync() for this, use it.
Signed-off-by: Tony Luck <tony.luck@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Pull cgroup updates from Tejun Heo:
- tracepoints for basic cgroup management operations added
- kernfs and cgroup path formatting functions updated to behave in the
style of strlcpy()
- non-critical bug fixes
* 'for-4.9' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup:
blkcg: Unlock blkcg_pol_mutex only once when cpd == NULL
cgroup: fix error handling regressions in proc_cgroup_show() and cgroup_release_agent()
cpuset: fix error handling regression in proc_cpuset_show()
cgroup: add tracepoints for basic operations
cgroup: make cgroup_path() and friends behave in the style of strlcpy()
kernfs: remove kernfs_path_len()
kernfs: make kernfs_path*() behave in the style of strlcpy()
kernfs: add dummy implementation of kernfs_path_from_node()
Will McVicker
Greg Kroah-Hartman
Tejun Heo
Bernd Edlinger
Andrea Parri
Al Viro
Johannes Weiner
Linus Torvalds
Dmitry Torokhov
Guenter Roeck
Arnd Bergmann
Deepa Dinamani
Souptick Joarder
Ivan Vecera
Dan Carpenter
Waiman Long
Shaohua Li
Vaibhav Jain
David Howells
Ingo Molnar
Dave Jiang
Konstantin Khlebnikov
Miklos Szeredi
Bart Van Assche
Tony Luck