94de3b405c8dee0ffc8de5c06b32fbf00fc4e8f9
22 Commits
| Author | SHA1 | Message | Date | |
|---|---|---|---|---|
Greg Kroah-Hartman
|
a9422ed2f1 |
Merge 5.15.46 into android13-5.15-lts
Changes in 5.15.46
binfmt_flat: do not stop relocating GOT entries prematurely on riscv
parisc/stifb: Implement fb_is_primary_device()
parisc/stifb: Keep track of hardware path of graphics card
RISC-V: Mark IORESOURCE_EXCLUSIVE for reserved mem instead of IORESOURCE_BUSY
riscv: Initialize thread pointer before calling C functions
riscv: Fix irq_work when SMP is disabled
riscv: Wire up memfd_secret in UAPI header
riscv: Move alternative length validation into subsection
ALSA: hda/realtek - Add new type for ALC245
ALSA: hda/realtek: Enable 4-speaker output for Dell XPS 15 9520 laptop
ALSA: hda/realtek - Fix microphone noise on ASUS TUF B550M-PLUS
ALSA: usb-audio: Cancel pending work at closing a MIDI substream
USB: serial: pl2303: fix type detection for odd device
USB: serial: option: add Quectel BG95 modem
USB: new quirk for Dell Gen 2 devices
usb: isp1760: Fix out-of-bounds array access
usb: dwc3: gadget: Move null pinter check to proper place
usb: core: hcd: Add support for deferring roothub registration
fs/ntfs3: Update valid size if -EIOCBQUEUED
fs/ntfs3: Fix fiemap + fix shrink file size (to remove preallocated space)
fs/ntfs3: Keep preallocated only if option prealloc enabled
fs/ntfs3: Check new size for limits
fs/ntfs3: In function ntfs_set_acl_ex do not change inode->i_mode if called from function ntfs_init_acl
fs/ntfs3: Fix some memory leaks in an error handling path of 'log_replay()'
fs/ntfs3: Update i_ctime when xattr is added
fs/ntfs3: Restore ntfs_xattr_get_acl and ntfs_xattr_set_acl functions
cifs: fix potential double free during failed mount
cifs: when extending a file with falloc we should make files not-sparse
xhci: Allow host runtime PM as default for Intel Alder Lake N xHCI
platform/x86: intel-hid: fix _DSM function index handling
x86/MCE/AMD: Fix memory leak when threshold_create_bank() fails
perf/x86/intel: Fix event constraints for ICL
x86/kexec: fix memory leak of elf header buffer
x86/sgx: Set active memcg prior to shmem allocation
ptrace/um: Replace PT_DTRACE with TIF_SINGLESTEP
ptrace/xtensa: Replace PT_SINGLESTEP with TIF_SINGLESTEP
ptrace: Reimplement PTRACE_KILL by always sending SIGKILL
btrfs: add "0x" prefix for unsupported optional features
btrfs: return correct error number for __extent_writepage_io()
btrfs: repair super block num_devices automatically
btrfs: fix the error handling for submit_extent_page() for btrfs_do_readpage()
iommu/vt-d: Add RPLS to quirk list to skip TE disabling
drm/vmwgfx: validate the screen formats
drm/virtio: fix NULL pointer dereference in virtio_gpu_conn_get_modes
selftests/bpf: Fix vfs_link kprobe definition
selftests/bpf: Fix parsing of prog types in UAPI hdr for bpftool sync
mwifiex: add mutex lock for call in mwifiex_dfs_chan_sw_work_queue
b43legacy: Fix assigning negative value to unsigned variable
b43: Fix assigning negative value to unsigned variable
ipw2x00: Fix potential NULL dereference in libipw_xmit()
ipv6: fix locking issues with loops over idev->addr_list
fbcon: Consistently protect deferred_takeover with console_lock()
x86/platform/uv: Update TSC sync state for UV5
ACPICA: Avoid cache flush inside virtual machines
mac80211: minstrel_ht: fix where rate stats are stored (fixes debugfs output)
drm/komeda: return early if drm_universal_plane_init() fails.
drm/amd/display: Disabling Z10 on DCN31
rcu-tasks: Fix race in schedule and flush work
rcu: Make TASKS_RUDE_RCU select IRQ_WORK
sfc: ef10: Fix assigning negative value to unsigned variable
ALSA: jack: Access input_dev under mutex
rtw88: 8821c: fix debugfs rssi value
spi: spi-rspi: Remove setting {src,dst}_{addr,addr_width} based on DMA direction
tools/power turbostat: fix ICX DRAM power numbers
scsi: lpfc: Move cfg_log_verbose check before calling lpfc_dmp_dbg()
scsi: lpfc: Fix SCSI I/O completion and abort handler deadlock
scsi: lpfc: Fix call trace observed during I/O with CMF enabled
cpuidle: PSCI: Improve support for suspend-to-RAM for PSCI OSI mode
drm/amd/pm: fix double free in si_parse_power_table()
ASoC: rsnd: care default case on rsnd_ssiu_busif_err_status_clear()
ASoC: rsnd: care return value from rsnd_node_fixed_index()
ath9k: fix QCA9561 PA bias level
media: venus: hfi: avoid null dereference in deinit
media: pci: cx23885: Fix the error handling in cx23885_initdev()
media: cx25821: Fix the warning when removing the module
md/bitmap: don't set sb values if can't pass sanity check
mmc: jz4740: Apply DMA engine limits to maximum segment size
drivers: mmc: sdhci_am654: Add the quirk to set TESTCD bit
scsi: megaraid: Fix error check return value of register_chrdev()
drm/amdgpu/sdma: Fix incorrect calculations of the wptr of the doorbells
scsi: ufs: Use pm_runtime_resume_and_get() instead of pm_runtime_get_sync()
scsi: lpfc: Fix resource leak in lpfc_sli4_send_seq_to_ulp()
ath11k: disable spectral scan during spectral deinit
ASoC: Intel: bytcr_rt5640: Add quirk for the HP Pro Tablet 408
drm/plane: Move range check for format_count earlier
drm/amd/pm: fix the compile warning
ath10k: skip ath10k_halt during suspend for driver state RESTARTING
arm64: compat: Do not treat syscall number as ESR_ELx for a bad syscall
drm: msm: fix error check return value of irq_of_parse_and_map()
scsi: target: tcmu: Fix possible data corruption
ipv6: Don't send rs packets to the interface of ARPHRD_TUNNEL
net/mlx5: fs, delete the FTE when there are no rules attached to it
ASoC: dapm: Don't fold register value changes into notifications
mlxsw: spectrum_dcb: Do not warn about priority changes
mlxsw: Treat LLDP packets as control
drm/amdgpu/psp: move PSP memory alloc from hw_init to sw_init
drm/amdgpu/ucode: Remove firmware load type check in amdgpu_ucode_free_bo
regulator: mt6315: Enforce regulator-compatible, not name
HID: bigben: fix slab-out-of-bounds Write in bigben_probe
of: Support more than one crash kernel regions for kexec -s
ASoC: tscs454: Add endianness flag in snd_soc_component_driver
scsi: lpfc: Alter FPIN stat accounting logic
net: remove two BUG() from skb_checksum_help()
s390/preempt: disable __preempt_count_add() optimization for PROFILE_ALL_BRANCHES
perf/amd/ibs: Cascade pmu init functions' return value
sched/core: Avoid obvious double update_rq_clock warning
spi: stm32-qspi: Fix wait_cmd timeout in APM mode
dma-debug: change allocation mode from GFP_NOWAIT to GFP_ATIOMIC
ACPI: PM: Block ASUS B1400CEAE from suspend to idle by default
ipmi:ssif: Check for NULL msg when handling events and messages
ipmi: Fix pr_fmt to avoid compilation issues
rtlwifi: Use pr_warn instead of WARN_ONCE
mt76: mt7921: accept rx frames with non-standard VHT MCS10-11
mt76: fix encap offload ethernet type check
media: rga: fix possible memory leak in rga_probe
media: coda: limit frame interval enumeration to supported encoder frame sizes
media: hantro: HEVC: unconditionnaly set pps_{cb/cr}_qp_offset values
media: ccs-core.c: fix failure to call clk_disable_unprepare
media: imon: reorganize serialization
media: cec-adap.c: fix is_configuring state
usbnet: Run unregister_netdev() before unbind() again
openrisc: start CPU timer early in boot
nvme-pci: fix a NULL pointer dereference in nvme_alloc_admin_tags
ASoC: rt5645: Fix errorenous cleanup order
nbd: Fix hung on disconnect request if socket is closed before
drm/amd/pm: update smartshift powerboost calc for smu12
drm/amd/pm: update smartshift powerboost calc for smu13
net: phy: micrel: Allow probing without .driver_data
media: exynos4-is: Fix compile warning
media: hantro: Stop using H.264 parameter pic_num
ASoC: max98357a: remove dependency on GPIOLIB
ASoC: rt1015p: remove dependency on GPIOLIB
ACPI: CPPC: Assume no transition latency if no PCCT
nvme: set non-mdts limits in nvme_scan_work
can: mcp251xfd: silence clang's -Wunaligned-access warning
x86/microcode: Add explicit CPU vendor dependency
net: ipa: ignore endianness if there is no header
m68k: atari: Make Atari ROM port I/O write macros return void
rxrpc: Return an error to sendmsg if call failed
rxrpc, afs: Fix selection of abort codes
afs: Adjust ACK interpretation to try and cope with NAT
eth: tg3: silence the GCC 12 array-bounds warning
char: tpm: cr50_i2c: Suppress duplicated error message in .remove()
selftests/bpf: fix btf_dump/btf_dump due to recent clang change
gfs2: use i_lock spin_lock for inode qadata
scsi: target: tcmu: Avoid holding XArray lock when calling lock_page
IB/rdmavt: add missing locks in rvt_ruc_loopback
ARM: dts: ox820: align interrupt controller node name with dtschema
ARM: dts: socfpga: align interrupt controller node name with dtschema
ARM: dts: s5pv210: align DMA channels with dtschema
arm64: dts: qcom: msm8994: Fix the cont_splash_mem address
arm64: dts: qcom: msm8994: Fix BLSP[12]_DMA channels count
PM / devfreq: rk3399_dmc: Disable edev on remove()
crypto: ccree - use fine grained DMA mapping dir
soc: ti: ti_sci_pm_domains: Check for null return of devm_kcalloc
fs: jfs: fix possible NULL pointer dereference in dbFree()
arm64: dts: qcom: sdm845-xiaomi-beryllium: fix typo in panel's vddio-supply property
ALSA: usb-audio: Add quirk bits for enabling/disabling generic implicit fb
ALSA: usb-audio: Move generic implicit fb quirk entries into quirks.c
ARM: OMAP1: clock: Fix UART rate reporting algorithm
powerpc/fadump: Fix fadump to work with a different endian capture kernel
fat: add ratelimit to fat*_ent_bread()
pinctrl: renesas: rzn1: Fix possible null-ptr-deref in sh_pfc_map_resources()
ARM: versatile: Add missing of_node_put in dcscb_init
ARM: dts: exynos: add atmel,24c128 fallback to Samsung EEPROM
ARM: hisi: Add missing of_node_put after of_find_compatible_node
cpufreq: Avoid unnecessary frequency updates due to mismatch
powerpc/rtas: Keep MSR[RI] set when calling RTAS
PCI: Avoid pci_dev_lock() AB/BA deadlock with sriov_numvfs_store()
KVM: PPC: Book3S HV Nested: L2 LPCR should inherit L1 LPES setting
alpha: fix alloc_zeroed_user_highpage_movable()
tracing: incorrect isolate_mote_t cast in mm_vmscan_lru_isolate
powerpc/powernv/vas: Assign real address to rx_fifo in vas_rx_win_attr
powerpc/xics: fix refcount leak in icp_opal_init()
powerpc/powernv: fix missing of_node_put in uv_init()
macintosh/via-pmu: Fix build failure when CONFIG_INPUT is disabled
powerpc/iommu: Add missing of_node_put in iommu_init_early_dart
smb3: check for null tcon
RDMA/hfi1: Prevent panic when SDMA is disabled
Input: gpio-keys - cancel delayed work only in case of GPIO
drm: fix EDID struct for old ARM OABI format
drm/bridge_connector: enable HPD by default if supported
dt-bindings: display: sitronix, st7735r: Fix backlight in example
drm/vmwgfx: Fix an invalid read
ath11k: acquire ab->base_lock in unassign when finding the peer by addr
drm: bridge: it66121: Fix the register page length
ath9k: fix ar9003_get_eepmisc
drm/edid: fix invalid EDID extension block filtering
drm/bridge: adv7511: clean up CEC adapter when probe fails
drm: bridge: icn6211: Fix register layout
drm: bridge: icn6211: Fix HFP_HSW_HBP_HI and HFP_MIN handling
mtd: spinand: gigadevice: fix Quad IO for GD5F1GQ5UExxG
spi: qcom-qspi: Add minItems to interconnect-names
ASoC: mediatek: Fix error handling in mt8173_max98090_dev_probe
ASoC: mediatek: Fix missing of_node_put in mt2701_wm8960_machine_probe
x86/delay: Fix the wrong asm constraint in delay_loop()
drm/vc4: hvs: Fix frame count register readout
drm/mediatek: Fix mtk_cec_mask()
drm/vc4: hvs: Reset muxes at probe time
drm/vc4: txp: Don't set TXP_VSTART_AT_EOF
drm/vc4: txp: Force alpha to be 0xff if it's disabled
libbpf: Don't error out on CO-RE relos for overriden weak subprogs
x86/PCI: Fix ALi M1487 (IBC) PIRQ router link value interpretation
mptcp: reset the packet scheduler on PRIO change
nl80211: show SSID for P2P_GO interfaces
drm/komeda: Fix an undefined behavior bug in komeda_plane_add()
drm: mali-dp: potential dereference of null pointer
spi: spi-ti-qspi: Fix return value handling of wait_for_completion_timeout
scftorture: Fix distribution of short handler delays
net: dsa: mt7530: 1G can also support 1000BASE-X link mode
ixp4xx_eth: fix error check return value of platform_get_irq()
NFC: NULL out the dev->rfkill to prevent UAF
efi: Add missing prototype for efi_capsule_setup_info
device property: Check fwnode->secondary when finding properties
device property: Allow error pointer to be passed to fwnode APIs
target: remove an incorrect unmap zeroes data deduction
drbd: fix duplicate array initializer
EDAC/dmc520: Don't print an error for each unconfigured interrupt line
mtd: rawnand: denali: Use managed device resources
HID: hid-led: fix maximum brightness for Dream Cheeky
HID: elan: Fix potential double free in elan_input_configured
drm/bridge: Fix error handling in analogix_dp_probe
regulator: da9121: Fix uninit-value in da9121_assign_chip_model()
drm/mediatek: dpi: Use mt8183 output formats for mt8192
signal: Deliver SIGTRAP on perf event asynchronously if blocked
sched/fair: Fix cfs_rq_clock_pelt() for throttled cfs_rq
sched/psi: report zeroes for CPU full at the system level
spi: img-spfi: Fix pm_runtime_get_sync() error checking
cpufreq: Fix possible race in cpufreq online error path
printk: use atomic updates for klogd work
printk: add missing memory barrier to wake_up_klogd()
printk: wake waiters for safe and NMI contexts
ath9k_htc: fix potential out of bounds access with invalid rxstatus->rs_keyix
media: i2c: max9286: Use dev_err_probe() helper
media: i2c: max9286: Use "maxim,gpio-poc" property
media: i2c: max9286: fix kernel oops when removing module
media: hantro: Empty encoder capture buffers by default
drm/panel: simple: Add missing bus flags for Innolux G070Y2-L01
ALSA: pcm: Check for null pointer of pointer substream before dereferencing it
mtdblock: warn if opened on NAND
inotify: show inotify mask flags in proc fdinfo
fsnotify: fix wrong lockdep annotations
spi: rockchip: Stop spi slave dma receiver when cs inactive
spi: rockchip: Preset cs-high and clk polarity in setup progress
spi: rockchip: fix missing error on unsupported SPI_CS_HIGH
of: overlay: do not break notify on NOTIFY_{OK|STOP}
selftests/damon: add damon to selftests root Makefile
drm/msm/dp: Modify prototype of encoder based API
drm/msm/hdmi: switch to drm_bridge_connector
drm/msm/dpu: adjust display_v_end for eDP and DP
scsi: iscsi: Fix harmless double shift bug
scsi: ufs: qcom: Fix ufs_qcom_resume()
scsi: ufs: core: Exclude UECxx from SFR dump list
drm/v3d: Fix null pointer dereference of pointer perfmon
selftests/resctrl: Fix null pointer dereference on open failed
libbpf: Fix logic for finding matching program for CO-RE relocation
mtd: spi-nor: core: Check written SR value in spi_nor_write_16bit_sr_and_check()
x86/pm: Fix false positive kmemleak report in msr_build_context()
mtd: rawnand: cadence: fix possible null-ptr-deref in cadence_nand_dt_probe()
mtd: rawnand: intel: fix possible null-ptr-deref in ebu_nand_probe()
x86/speculation: Add missing prototype for unpriv_ebpf_notify()
ASoC: rk3328: fix disabling mclk on pclk probe failure
perf tools: Add missing headers needed by util/data.h
drm/msm/disp/dpu1: set vbif hw config to NULL to avoid use after memory free during pm runtime resume
drm/msm/dp: stop event kernel thread when DP unbind
drm/msm/dp: fix error check return value of irq_of_parse_and_map()
drm/msm/dp: reset DP controller before transmit phy test pattern
drm/msm/dp: do not stop transmitting phy test pattern during DP phy compliance test
drm/msm/dsi: fix error checks and return values for DSI xmit functions
drm/msm/hdmi: check return value after calling platform_get_resource_byname()
drm/msm/hdmi: fix error check return value of irq_of_parse_and_map()
drm/msm: add missing include to msm_drv.c
drm/panel: panel-simple: Fix proper bpc for AM-1280800N3TZQW-T00H
kunit: fix debugfs code to use enum kunit_status, not bool
drm/rockchip: vop: fix possible null-ptr-deref in vop_bind()
spi: cadence-quadspi: fix Direct Access Mode disable for SoCFPGA
perf tools: Use Python devtools for version autodetection rather than runtime
virtio_blk: fix the discard_granularity and discard_alignment queue limits
nl80211: don't hold RTNL in color change request
x86: Fix return value of __setup handlers
irqchip/exiu: Fix acknowledgment of edge triggered interrupts
irqchip/aspeed-i2c-ic: Fix irq_of_parse_and_map() return value
irqchip/aspeed-scu-ic: Fix irq_of_parse_and_map() return value
x86/mm: Cleanup the control_va_addr_alignment() __setup handler
arm64: fix types in copy_highpage()
regulator: core: Fix enable_count imbalance with EXCLUSIVE_GET
drm/msm/dsi: fix address for second DSI PHY on SDM660
drm/msm/dp: fix event thread stuck in wait_event after kthread_stop()
drm/msm/mdp5: Return error code in mdp5_pipe_release when deadlock is detected
drm/msm/mdp5: Return error code in mdp5_mixer_release when deadlock is detected
drm/msm: return an error pointer in msm_gem_prime_get_sg_table()
media: uvcvideo: Fix missing check to determine if element is found in list
arm64: stackleak: fix current_top_of_stack()
iomap: iomap_write_failed fix
spi: spi-fsl-qspi: check return value after calling platform_get_resource_byname()
Revert "cpufreq: Fix possible race in cpufreq online error path"
regulator: qcom_smd: Fix up PM8950 regulator configuration
samples: bpf: Don't fail for a missing VMLINUX_BTF when VMLINUX_H is provided
perf/amd/ibs: Use interrupt regs ip for stack unwinding
ath11k: Don't check arvif->is_started before sending management frames
wilc1000: fix crash observed in AP mode with cfg80211_register_netdevice()
HID: amd_sfh: Modify the bus name
HID: amd_sfh: Modify the hid name
ASoC: fsl: Use dev_err_probe() helper
ASoC: fsl: Fix refcount leak in imx_sgtl5000_probe
ASoC: imx-hdmi: Fix refcount leak in imx_hdmi_probe
ASoC: mxs-saif: Fix refcount leak in mxs_saif_probe
regulator: pfuze100: Fix refcount leak in pfuze_parse_regulators_dt
dma-direct: factor out a helper for DMA_ATTR_NO_KERNEL_MAPPING allocations
dma-direct: don't fail on highmem CMA pages in dma_direct_alloc_pages
ASoC: samsung: Use dev_err_probe() helper
ASoC: samsung: Fix refcount leak in aries_audio_probe
block: Fix the bio.bi_opf comment
kselftest/cgroup: fix test_stress.sh to use OUTPUT dir
scripts/faddr2line: Fix overlapping text section failures
media: aspeed: Fix an error handling path in aspeed_video_probe()
media: exynos4-is: Fix PM disable depth imbalance in fimc_is_probe
mt76: mt7921: Fix the error handling path of mt7921_pci_probe()
mt76: do not attempt to reorder received 802.3 packets without agg session
media: st-delta: Fix PM disable depth imbalance in delta_probe
media: atmel: atmel-isc: Fix PM disable depth imbalance in atmel_isc_probe
media: i2c: rdacm2x: properly set subdev entity function
media: exynos4-is: Change clk_disable to clk_disable_unprepare
media: pvrusb2: fix array-index-out-of-bounds in pvr2_i2c_core_init
media: vsp1: Fix offset calculation for plane cropping
media: atmel: atmel-sama5d2-isc: fix wrong mask in YUYV format check
media: hantro: HEVC: Fix tile info buffer value computation
Bluetooth: fix dangling sco_conn and use-after-free in sco_sock_timeout
Bluetooth: use hdev lock in activate_scan for hci_is_adv_monitoring
Bluetooth: use hdev lock for accept_list and reject_list in conn req
nvme: set dma alignment to dword
m68k: math-emu: Fix dependencies of math emulation support
sctp: read sk->sk_bound_dev_if once in sctp_rcv()
net: hinic: add missing destroy_workqueue in hinic_pf_to_mgmt_init
ASoC: ti: j721e-evm: Fix refcount leak in j721e_soc_probe_*
kselftest/arm64: bti: force static linking
media: ov7670: remove ov7670_power_off from ov7670_remove
media: i2c: ov5648: fix wrong pointer passed to IS_ERR() and PTR_ERR()
media: staging: media: rkvdec: Make use of the helper function devm_platform_ioremap_resource()
media: rkvdec: h264: Fix dpb_valid implementation
media: rkvdec: h264: Fix bit depth wrap in pps packet
regulator: scmi: Fix refcount leak in scmi_regulator_probe
ext4: reject the 'commit' option on ext2 filesystems
drm/msm/a6xx: Fix refcount leak in a6xx_gpu_init
drm: msm: fix possible memory leak in mdp5_crtc_cursor_set()
x86/sev: Annotate stack change in the #VC handler
drm/msm: don't free the IRQ if it was not requested
selftests/bpf: Add missed ima_setup.sh in Makefile
drm/msm/dpu: handle pm_runtime_get_sync() errors in bind path
drm/i915: Fix CFI violation with show_dynamic_id()
thermal/drivers/bcm2711: Don't clamp temperature at zero
thermal/drivers/broadcom: Fix potential NULL dereference in sr_thermal_probe
thermal/core: Fix memory leak in __thermal_cooling_device_register()
thermal/drivers/imx_sc_thermal: Fix refcount leak in imx_sc_thermal_probe
bfq: Relax waker detection for shared queues
bfq: Allow current waker to defend against a tentative one
ASoC: wm2000: fix missing clk_disable_unprepare() on error in wm2000_anc_transition()
PM: domains: Fix initialization of genpd's next_wakeup
net: macb: Fix PTP one step sync support
NFC: hci: fix sleep in atomic context bugs in nfc_hci_hcp_message_tx
ASoC: max98090: Move check for invalid values before casting in max98090_put_enab_tlv()
net: stmmac: selftests: Use kcalloc() instead of kzalloc()
net: stmmac: fix out-of-bounds access in a selftest
hv_netvsc: Fix potential dereference of NULL pointer
hwmon: (pmbus) Check PEC support before reading other registers
rxrpc: Fix listen() setting the bar too high for the prealloc rings
rxrpc: Don't try to resend the request if we're receiving the reply
rxrpc: Fix overlapping ACK accounting
rxrpc: Don't let ack.previousPacket regress
rxrpc: Fix decision on when to generate an IDLE ACK
net: huawei: hinic: Use devm_kcalloc() instead of devm_kzalloc()
hinic: Avoid some over memory allocation
net: dsa: restrict SMSC_LAN9303_I2C kconfig
net/smc: postpone sk_refcnt increment in connect()
dma-direct: factor out dma_set_{de,en}crypted helpers
dma-direct: don't call dma_set_decrypted for remapped allocations
dma-direct: always leak memory that can't be re-encrypted
dma-direct: don't over-decrypt memory
arm64: dts: rockchip: Move drive-impedance-ohm to emmc phy on rk3399
arm64: dts: mt8192: Fix nor_flash status disable typo
PCI/ACPI: Allow D3 only if Root Port can signal and wake from D3
memory: samsung: exynos5422-dmc: Avoid some over memory allocation
ARM: dts: BCM5301X: update CRU block description
ARM: dts: BCM5301X: Update pin controller node name
ARM: dts: suniv: F1C100: fix watchdog compatible
soc: qcom: smp2p: Fix missing of_node_put() in smp2p_parse_ipc
soc: qcom: smsm: Fix missing of_node_put() in smsm_parse_ipc
PCI: cadence: Fix find_first_zero_bit() limit
PCI: rockchip: Fix find_first_zero_bit() limit
PCI: mediatek: Fix refcount leak in mtk_pcie_subsys_powerup()
PCI: dwc: Fix setting error return on MSI DMA mapping failure
ARM: dts: ci4x10: Adapt to changes in imx6qdl.dtsi regarding fec clocks
soc: qcom: llcc: Add MODULE_DEVICE_TABLE()
KVM: nVMX: Leave most VM-Exit info fields unmodified on failed VM-Entry
KVM: nVMX: Clear IDT vectoring on nested VM-Exit for double/triple fault
crypto: qat - set CIPHER capability for QAT GEN2
crypto: qat - set COMPRESSION capability for QAT GEN2
crypto: qat - set CIPHER capability for DH895XCC
crypto: qat - set COMPRESSION capability for DH895XCC
platform/chrome: cros_ec: fix error handling in cros_ec_register()
ARM: dts: imx6dl-colibri: Fix I2C pinmuxing
platform/chrome: Re-introduce cros_ec_cmd_xfer and use it for ioctls
can: xilinx_can: mark bit timing constants as const
ARM: dts: stm32: Fix PHY post-reset delay on Avenger96
ARM: dts: bcm2835-rpi-zero-w: Fix GPIO line name for Wifi/BT
ARM: dts: bcm2837-rpi-cm3-io3: Fix GPIO line names for SMPS I2C
ARM: dts: bcm2837-rpi-3-b-plus: Fix GPIO line name of power LED
ARM: dts: bcm2835-rpi-b: Fix GPIO line names
misc: ocxl: fix possible double free in ocxl_file_register_afu
crypto: marvell/cesa - ECB does not IV
gpiolib: of: Introduce hook for missing gpio-ranges
pinctrl: bcm2835: implement hook for missing gpio-ranges
arm: mediatek: select arch timer for mt7629
pinctrl/rockchip: support deferring other gpio params
pinctrl: mediatek: mt8195: enable driver on mtk platforms
arm64: dts: qcom: qrb5165-rb5: Fix can-clock node name
Drivers: hv: vmbus: Fix handling of messages with transaction ID of zero
powerpc/fadump: fix PT_LOAD segment for boot memory area
mfd: ipaq-micro: Fix error check return value of platform_get_irq()
scsi: fcoe: Fix Wstringop-overflow warnings in fcoe_wwn_from_mac()
soc: bcm: Check for NULL return of devm_kzalloc()
arm64: dts: ti: k3-am64-mcu: remove incorrect UART base clock rates
ASoC: sh: rz-ssi: Check return value of pm_runtime_resume_and_get()
ASoC: sh: rz-ssi: Propagate error codes returned from platform_get_irq_byname()
ASoC: sh: rz-ssi: Release the DMA channels in rz_ssi_probe() error path
firmware: arm_scmi: Fix list protocols enumeration in the base protocol
nvdimm: Fix firmware activation deadlock scenarios
nvdimm: Allow overwrite in the presence of disabled dimms
pinctrl: mvebu: Fix irq_of_parse_and_map() return value
drivers/base/node.c: fix compaction sysfs file leak
dax: fix cache flush on PMD-mapped pages
drivers/base/memory: fix an unlikely reference counting issue in __add_memory_block()
firmware: arm_ffa: Fix uuid parameter to ffa_partition_probe
firmware: arm_ffa: Remove incorrect assignment of driver_data
list: introduce list_is_head() helper and re-use it in list.h
list: fix a data-race around ep->rdllist
drm/msm/dpu: fix error check return value of irq_of_parse_and_map()
powerpc/8xx: export 'cpm_setbrg' for modules
pinctrl: renesas: r8a779a0: Fix GPIO function on I2C-capable pins
pinctrl: renesas: core: Fix possible null-ptr-deref in sh_pfc_map_resources()
powerpc/idle: Fix return value of __setup() handler
powerpc/4xx/cpm: Fix return value of __setup() handler
RDMA/hns: Add the detection for CMDQ status in the device initialization process
arm64: dts: marvell: espressobin-ultra: fix SPI-NOR config
arm64: dts: marvell: espressobin-ultra: enable front USB3 port
ASoC: atmel-pdmic: Remove endianness flag on pdmic component
ASoC: atmel-classd: Remove endianness flag on class d component
proc: fix dentry/inode overinstantiating under /proc/${pid}/net
ipc/mqueue: use get_tree_nodev() in mqueue_get_tree()
PCI: imx6: Fix PERST# start-up sequence
tty: fix deadlock caused by calling printk() under tty_port->lock
crypto: sun8i-ss - rework handling of IV
crypto: sun8i-ss - handle zero sized sg
crypto: cryptd - Protect per-CPU resource by disabling BH.
ARM: dts: at91: sama7g5: remove interrupt-parent from gic node
hugetlbfs: fix hugetlbfs_statfs() locking
Input: sparcspkr - fix refcount leak in bbc_beep_probe
PCI/AER: Clear MULTI_ERR_COR/UNCOR_RCV bits
PCI: microchip: Fix potential race in interrupt handling
hwrng: omap3-rom - fix using wrong clk_disable() in omap_rom_rng_runtime_resume()
powerpc/64: Only WARN if __pa()/__va() called with bad addresses
powerpc/perf: Fix the threshold compare group constraint for power10
powerpc/perf: Fix the threshold compare group constraint for power9
macintosh: via-pmu and via-cuda need RTC_LIB
powerpc/xive: Add some error handling code to 'xive_spapr_init()'
powerpc/xive: Fix refcount leak in xive_spapr_init
powerpc/fsl_rio: Fix refcount leak in fsl_rio_setup
mfd: davinci_voicecodec: Fix possible null-ptr-deref davinci_vc_probe()
nfsd: destroy percpu stats counters after reply cache shutdown
mailbox: forward the hrtimer if not queued and under a lock
RDMA/hfi1: Prevent use of lock before it is initialized
KVM: LAPIC: Drop pending LAPIC timer injection when canceling the timer
Input: stmfts - do not leave device disabled in stmfts_input_open
OPP: call of_node_put() on error path in _bandwidth_supported()
f2fs: support fault injection for dquot_initialize()
f2fs: fix to do sanity check on inline_dots inode
f2fs: fix dereference of stale list iterator after loop body
iommu/amd: Enable swiotlb in all cases
iommu/mediatek: Fix 2 HW sharing pgtable issue
iommu/mediatek: Add list_del in mtk_iommu_remove
iommu/mediatek: Remove clk_disable in mtk_iommu_remove
iommu/mediatek: Add mutex for m4u_group and m4u_dom in data
i2c: at91: use dma safe buffers
cpufreq: mediatek: Use module_init and add module_exit
cpufreq: mediatek: Unregister platform device on exit
iommu/arm-smmu-v3-sva: Fix mm use-after-free
MIPS: Loongson: Use hwmon_device_register_with_groups() to register hwmon
iommu/mediatek: Fix NULL pointer dereference when printing dev_name
i2c: at91: Initialize dma_buf in at91_twi_xfer()
dmaengine: idxd: Fix the error handling path in idxd_cdev_register()
NFS: Do not report EINTR/ERESTARTSYS as mapping errors
NFS: fsync() should report filesystem errors over EINTR/ERESTARTSYS
NFS: Don't report ENOSPC write errors twice
NFS: Do not report flush errors in nfs_write_end()
NFS: Don't report errors from nfs_pageio_complete() more than once
NFSv4/pNFS: Do not fail I/O when we fail to allocate the pNFS layout
NFS: Further fixes to the writeback error handling
video: fbdev: clcdfb: Fix refcount leak in clcdfb_of_vram_setup
dmaengine: stm32-mdma: remove GISR1 register
dmaengine: stm32-mdma: fix chan initialization in stm32_mdma_irq_handler()
iommu/amd: Increase timeout waiting for GA log enablement
i2c: npcm: Fix timeout calculation
i2c: npcm: Correct register access width
i2c: npcm: Handle spurious interrupts
i2c: rcar: fix PM ref counts in probe error paths
perf build: Fix btf__load_from_kernel_by_id() feature check
perf c2c: Use stdio interface if slang is not supported
perf jevents: Fix event syntax error caused by ExtSel
video: fbdev: vesafb: Fix a use-after-free due early fb_info cleanup
NFS: Always initialise fattr->label in nfs_fattr_alloc()
NFS: Create a new nfs_alloc_fattr_with_label() function
NFS: Convert GFP_NOFS to GFP_KERNEL
NFSv4.1 mark qualified async operations as MOVEABLE tasks
f2fs: fix to avoid f2fs_bug_on() in dec_valid_node_count()
f2fs: fix to do sanity check on block address in f2fs_do_zero_range()
f2fs: fix to clear dirty inode in f2fs_evict_inode()
f2fs: fix deadloop in foreground GC
f2fs: don't need inode lock for system hidden quota
f2fs: fix to do sanity check on total_data_blocks
f2fs: don't use casefolded comparison for "." and ".."
f2fs: fix fallocate to use file_modified to update permissions consistently
f2fs: fix to do sanity check for inline inode
objtool: Fix objtool regression on x32 systems
objtool: Fix symbol creation
wifi: mac80211: fix use-after-free in chanctx code
iwlwifi: mvm: fix assert 1F04 upon reconfig
fs-writeback: writeback_sb_inodes：Recalculate 'wrote' according skipped pages
efi: Do not import certificates from UEFI Secure Boot for T2 Macs
bfq: Avoid false marking of bic as stably merged
bfq: Avoid merging queues with different parents
bfq: Split shared queues on move between cgroups
bfq: Update cgroup information before merging bio
bfq: Drop pointless unlock-lock pair
bfq: Remove pointless bfq_init_rq() calls
bfq: Track whether bfq_group is still online
bfq: Get rid of __bio_blkcg() usage
bfq: Make sure bfqg for which we are queueing requests is online
ext4: mark group as trimmed only if it was fully scanned
ext4: fix use-after-free in ext4_rename_dir_prepare
ext4: fix race condition between ext4_write and ext4_convert_inline_data
ext4: fix warning in ext4_handle_inode_extension
ext4: fix bug_on in ext4_writepages
ext4: filter out EXT4_FC_REPLAY from on-disk superblock field s_state
ext4: fix bug_on in __es_tree_search
ext4: verify dir block before splitting it
ext4: avoid cycles in directory h-tree
ACPI: property: Release subnode properties with data nodes
tty: goldfish: Introduce gf_ioread32()/gf_iowrite32()
tracing: Fix potential double free in create_var_ref()
tracing: Initialize integer variable to prevent garbage return value
drm/amdgpu: add beige goby PCI ID
PCI/PM: Fix bridge_d3_blacklist[] Elo i2 overwrite of Gigabyte X299
PCI: qcom: Fix runtime PM imbalance on probe errors
PCI: qcom: Fix unbalanced PHY init on probe errors
staging: r8188eu: prevent ->Ssid overflow in rtw_wx_set_scan()
mm, compaction: fast_find_migrateblock() should return pfn in the target zone
s390/perf: obtain sie_block from the right address
s390/stp: clock_delta should be signed
dlm: fix plock invalid read
dlm: uninitialized variable on error in dlm_listen_for_all()
dlm: fix missing lkb refcount handling
ocfs2: dlmfs: fix error handling of user_dlm_destroy_lock
scsi: dc395x: Fix a missing check on list iterator
scsi: ufs: qcom: Add a readl() to make sure ref_clk gets enabled
landlock: Add clang-format exceptions
landlock: Format with clang-format
selftests/landlock: Add clang-format exceptions
selftests/landlock: Normalize array assignment
selftests/landlock: Format with clang-format
samples/landlock: Add clang-format exceptions
samples/landlock: Format with clang-format
landlock: Fix landlock_add_rule(2) documentation
selftests/landlock: Make tests build with old libc
selftests/landlock: Extend tests for minimal valid attribute size
selftests/landlock: Add tests for unknown access rights
selftests/landlock: Extend access right tests to directories
selftests/landlock: Fully test file rename with "remove" access
selftests/landlock: Add tests for O_PATH
landlock: Change landlock_add_rule(2) argument check ordering
landlock: Change landlock_restrict_self(2) check ordering
selftests/landlock: Test landlock_create_ruleset(2) argument check ordering
landlock: Define access_mask_t to enforce a consistent access mask size
landlock: Reduce the maximum number of layers to 16
landlock: Create find_rule() from unmask_layers()
landlock: Fix same-layer rule unions
drm/amdgpu/cs: make commands with 0 chunks illegal behaviour.
drm/nouveau/subdev/bus: Ratelimit logging for fault errors
drm/etnaviv: check for reaped mapping in etnaviv_iommu_unmap_gem
drm/nouveau/clk: Fix an incorrect NULL check on list iterator
drm/nouveau/kms/nv50-: atom: fix an incorrect NULL check on list iterator
drm/bridge: analogix_dp: Grab runtime PM reference for DP-AUX
drm/i915/dsi: fix VBT send packet port selection for ICL+
md: fix an incorrect NULL check in does_sb_need_changing
md: fix an incorrect NULL check in md_reload_sb
mtd: cfi_cmdset_0002: Move and rename chip_check/chip_ready/chip_good_for_write
mtd: cfi_cmdset_0002: Use chip_ready() for write on S29GL064N
media: coda: Fix reported H264 profile
media: coda: Add more H264 levels for CODA960
ima: remove the IMA_TEMPLATE Kconfig option
Kconfig: Add option for asm goto w/ tied outputs to workaround clang-13 bug
RDMA/hfi1: Fix potential integer multiplication overflow errors
mmc: core: Allows to override the timeout value for ioctl() path
csky: patch_text: Fixup last cpu should be master
irqchip/armada-370-xp: Do not touch Performance Counter Overflow on A375, A38x, A39x
irqchip: irq-xtensa-mx: fix initial IRQ affinity
thermal: devfreq_cooling: use local ops instead of global ops
cfg80211: declare MODULE_FIRMWARE for regulatory.db
mac80211: upgrade passive scan to active scan on DFS channels after beacon rx
um: Use asm-generic/dma-mapping.h
um: chan_user: Fix winch_tramp() return value
um: Fix out-of-bounds read in LDT setup
kexec_file: drop weak attribute from arch_kexec_apply_relocations[_add]
ftrace: Clean up hash direct_functions on register failures
ksmbd: fix outstanding credits related bugs
iommu/msm: Fix an incorrect NULL check on list iterator
iommu/dma: Fix iova map result check bug
Revert "mm/cma.c: remove redundant cma_mutex lock"
mm/page_alloc: always attempt to allocate at least one page during bulk allocation
nodemask.h: fix compilation error with GCC12
hugetlb: fix huge_pmd_unshare address update
mm/memremap: fix missing call to untrack_pfn() in pagemap_range()
xtensa/simdisk: fix proc_read_simdisk()
rtl818x: Prevent using not initialized queues
ASoC: rt5514: Fix event generation for "DSP Voice Wake Up" control
carl9170: tx: fix an incorrect use of list iterator
stm: ltdc: fix two incorrect NULL checks on list iterator
bcache: improve multithreaded bch_btree_check()
bcache: improve multithreaded bch_sectors_dirty_init()
bcache: remove incremental dirty sector counting for bch_sectors_dirty_init()
bcache: avoid journal no-space deadlock by reserving 1 journal bucket
serial: pch: don't overwrite xmit->buf[0] by x_char
tilcdc: tilcdc_external: fix an incorrect NULL check on list iterator
gma500: fix an incorrect NULL check on list iterator
arm64: dts: qcom: ipq8074: fix the sleep clock frequency
arm64: tegra: Add missing DFLL reset on Tegra210
clk: tegra: Add missing reset deassertion
phy: qcom-qmp: fix struct clk leak on probe errors
ARM: dts: s5pv210: Remove spi-cs-high on panel in Aries
ARM: pxa: maybe fix gpio lookup tables
SMB3: EBADF/EIO errors in rename/open caused by race condition in smb2_compound_op
docs/conf.py: Cope with removal of language=None in Sphinx 5.0.0
dt-bindings: gpio: altera: correct interrupt-cells
vdpasim: allow to enable a vq repeatedly
blk-iolatency: Fix inflight count imbalances and IO hangs on offline
coresight: core: Fix coresight device probe failure issue
phy: qcom-qmp: fix reset-controller leak on probe errors
net: ipa: fix page free in ipa_endpoint_trans_release()
net: ipa: fix page free in ipa_endpoint_replenish_one()
kseltest/cgroup: Make test_stress.sh work if run interactively
list: test: Add a test for list_is_head()
Revert "random: use static branch for crng_ready()"
staging: r8188eu: delete rtw_wx_read/write32()
RDMA/hns: Remove the num_cqc_timer variable
RDMA/rxe: Generate a completion for unsupported/invalid opcode
MIPS: IP27: Remove incorrect `cpu_has_fpu' override
MIPS: IP30: Remove incorrect `cpu_has_fpu' override
ext4: only allow test_dummy_encryption when supported
interconnect: qcom: sc7180: Drop IP0 interconnects
interconnect: qcom: icc-rpmh: Add BCMs to commit list in pre_aggregate
fs: add two trivial lookup helpers
exportfs: support idmapped mounts
fs/ntfs3: Fix invalid free in log_replay
md: Don't set mddev private to NULL in raid0 pers->free
md: fix double free of io_acct_set bioset
md: bcache: check the return value of kzalloc() in detached_dev_do_request()
pinctrl/rockchip: support setting input-enable param
block: fix bio_clone_blkg_association() to associate with proper blkcg_gq
Linux 5.15.46
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: Id50a95d816e662c0cba3d09dbfd561f386d7a52e
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Paul E. McKenney
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2da36b14af |
rcu: Make TASKS_RUDE_RCU select IRQ_WORK
[ Upstream commit 46e861be589881e0905b9ade3d8439883858721c ] The TASKS_RUDE_RCU does not select IRQ_WORK, which can result in build failures for kernels that do not otherwise select IRQ_WORK. This commit therefore causes the TASKS_RUDE_RCU Kconfig option to select IRQ_WORK. Reported-by: Hyeonggon Yoo <42.hyeyoo@gmail.com> Signed-off-by: Paul E. McKenney <paulmck@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org> |
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Kalesh Singh
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46a5d62344 |
FROMGIT: EXP rcu: Move expedited grace period (GP) work to RT kthread_worker
Enabling CONFIG_RCU_BOOST did not reduce RCU expedited grace-period latency because its workqueues run at SCHED_OTHER, and thus can be delayed by normal processes. This commit avoids these delays by moving the expedited GP work items to a real-time-priority kthread_worker. This option is controlled by CONFIG_RCU_EXP_KTHREAD and disabled by default on PREEMPT_RT=y kernels which disable expedited grace periods after boot by unconditionally setting rcupdate.rcu_normal_after_boot=1. The results were evaluated on arm64 Android devices (6GB ram) running 5.10 kernel, and capturing trace data in critical user-level code. The table below shows the resulting order-of-magnitude improvements in synchronize_rcu_expedited() latency: ------------------------------------------------------------------------ | | workqueues | kthread_worker | Diff | ------------------------------------------------------------------------ | Count | 725 | 688 | | ------------------------------------------------------------------------ | Min Duration (ns) | 326 | 447 | 37.12% | ------------------------------------------------------------------------ | Q1 (ns) | 39,428 | 38,971 | -1.16% | ------------------------------------------------------------------------ | Q2 - Median (ns) | 98,225 | 69,743 | -29.00% | ------------------------------------------------------------------------ | Q3 (ns) | 342,122 | 126,638 | -62.98% | ------------------------------------------------------------------------ | Max Duration (ns) | 372,766,967 | 2,329,671 | -99.38% | ------------------------------------------------------------------------ | Avg Duration (ns) | 2,746,353 | 151,242 | -94.49% | ------------------------------------------------------------------------ | Standard Deviation (ns) | 19,327,765 | 294,408 | | ------------------------------------------------------------------------ The below table show the range of maximums/minimums for synchronize_rcu_expedited() latency from all experiments: ------------------------------------------------------------------------ | | workqueues | kthread_worker | Diff | ------------------------------------------------------------------------ | Total No. of Experiments | 25 | 23 | | ------------------------------------------------------------------------ | Largest Maximum (ns) | 372,766,967 | 2,329,671 | -99.38% | ------------------------------------------------------------------------ | Smallest Maximum (ns) | 38,819 | 86,954 | 124.00% | ------------------------------------------------------------------------ | Range of Maximums (ns) | 372,728,148 | 2,242,717 | | ------------------------------------------------------------------------ | Largest Minimum (ns) | 88,623 | 27,588 | -68.87% | ------------------------------------------------------------------------ | Smallest Minimum (ns) | 326 | 447 | 37.12% | ------------------------------------------------------------------------ | Range of Minimums (ns) | 88,297 | 27,141 | | ------------------------------------------------------------------------ Cc: "Paul E. McKenney" <paulmck@kernel.org> Cc: Tejun Heo <tj@kernel.org> Reported-by: Tim Murray <timmurray@google.com> Reported-by: Wei Wang <wvw@google.com> Tested-by: Kyle Lin <kylelin@google.com> Tested-by: Chunwei Lu <chunweilu@google.com> Tested-by: Lulu Wang <luluw@google.com> Signed-off-by: Kalesh Singh <kaleshsingh@google.com> Signed-off-by: Paul E. McKenney <paulmck@kernel.org> Link: https://lore.kernel.org/r/20220409003527.1587028-1-kaleshsingh@google.com/ (cherry picked from commit 3902dd17a29bd3ed1ead364a331a1761edb7162b git: //git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu.git fastexp.2022.04.11a) Bug: 224791892 Change-Id: I4cc5d28f9ae99e44e92afc43ff4db4b71c415d6c |
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Paul E. McKenney
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0d2460ba61 |
Merge branches 'doc.2021.01.06a', 'fixes.2021.01.04b', 'kfree_rcu.2021.01.04a', 'mmdumpobj.2021.01.22a', 'nocb.2021.01.06a', 'rt.2021.01.04a', 'stall.2021.01.06a', 'torture.2021.01.12a' and 'tortureall.2021.01.06a' into HEAD
doc.2021.01.06a: Documentation updates. fixes.2021.01.04b: Miscellaneous fixes. kfree_rcu.2021.01.04a: kfree_rcu() updates. mmdumpobj.2021.01.22a: Dump allocation point for memory blocks. nocb.2021.01.06a: RCU callback offload updates and cblist segment lengths. rt.2021.01.04a: Real-time updates. stall.2021.01.06a: RCU CPU stall warning updates. torture.2021.01.12a: Torture-test updates and polling SRCU grace-period API. tortureall.2021.01.06a: Torture-test script updates. |
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Paul E. McKenney
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c26165efac |
rcu: Make TASKS_TRACE_RCU select IRQ_WORK
Tasks Trace RCU uses irq_work_queue() to safely awaken its grace-period kthread, so this commit therefore causes the TASKS_TRACE_RCU Kconfig option select the IRQ_WORK Kconfig option. Reported-by: kernel test robot <lkp@intel.com> Acked-by: Randy Dunlap <rdunlap@infradead.org> # build-tested Signed-off-by: Paul E. McKenney <paulmck@kernel.org> |
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Sebastian Andrzej Siewior
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2341bc4a03 |
rcu: Make RCU_BOOST default on CONFIG_PREEMPT_RT
On PREEMPT_RT kernels, RCU callbacks are deferred to the `rcuc' kthread. This can stall RCU grace periods due to lengthy preemption not only of RCU readers but also of 'rcuc' kthreads, either of which prevent grace periods from completing, which can in turn result in OOM. Because PREEMPT_RT kernels have more kthreads that can block grace periods, it is more important for such kernels to enable RCU_BOOST. This commit therefore makes RCU_BOOST the default on PREEMPT_RT. RCU_BOOST can still be manually disabled if need be. Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Signed-off-by: Paul E. McKenney <paulmck@kernel.org> |
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Neeraj Upadhyay
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a3941517fc |
rcu: Clarify nocb kthreads naming in RCU_NOCB_CPU config
This commit clarifies that the "p" and the "s" in the in the RCU_NOCB_CPU config-option description refer to the "x" in the "rcuox/N" kthread name. Signed-off-by: Neeraj Upadhyay <neeraju@codeaurora.org> [ paulmck: While in the area, update description and advice. ] Signed-off-by: Paul E. McKenney <paulmck@kernel.org> |
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Paul E. McKenney
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dc1269186b |
rcu: Reduce leaf fanout for strict RCU grace periods
Because strict RCU grace periods will complete more quickly, they will experience greater lock contention on each leaf rcu_node structure's ->lock. This commit therefore reduces the leaf fanout in order to reduce this lock contention. Note that this also has the effect of reducing the number of CPUs supported to 16 in the case of CONFIG_RCU_FANOUT_LEAF=2 or 81 in the case of CONFIG_RCU_FANOUT_LEAF=3. However, greater numbers of CPUs are probably a bad idea when using CONFIG_RCU_STRICT_GRACE_PERIOD=y. Those wishing to live dangerously are free to edit their kernel/rcu/Kconfig files accordingly. Reported-by Jann Horn <jannh@google.com> Signed-off-by: Paul E. McKenney <paulmck@kernel.org> |
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Paul E. McKenney
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9ae58d7bd1 |
rcu-tasks: Add Kconfig option to mediate smp_mb() vs. IPI
This commit provides a new TASKS_TRACE_RCU_READ_MB Kconfig option that enables use of read-side memory barriers by both rcu_read_lock_trace() and rcu_read_unlock_trace() when the are executed with the current->trc_reader_special.b.need_mb flag set. This flag is currently never set. Doing that is the subject of a later commit. Signed-off-by: Paul E. McKenney <paulmck@kernel.org> |
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Paul E. McKenney
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d5f177d35c |
rcu-tasks: Add an RCU Tasks Trace to simplify protection of tracing hooks
Because RCU does not watch exception early-entry/late-exit, idle-loop, or CPU-hotplug execution, protection of tracing and BPF operations is needlessly complicated. This commit therefore adds a variant of Tasks RCU that: o Has explicit read-side markers to allow finite grace periods in the face of in-kernel loops for PREEMPT=n builds. These markers are rcu_read_lock_trace() and rcu_read_unlock_trace(). o Protects code in the idle loop, exception entry/exit, and CPU-hotplug code paths. In this respect, RCU-tasks trace is similar to SRCU, but with lighter-weight readers. o Avoids expensive read-side instruction, having overhead similar to that of Preemptible RCU. There are of course downsides: o The grace-period code can send IPIs to CPUs, even when those CPUs are in the idle loop or in nohz_full userspace. This is mitigated by later commits. o It is necessary to scan the full tasklist, much as for Tasks RCU. o There is a single callback queue guarded by a single lock, again, much as for Tasks RCU. However, those early use cases that request multiple grace periods in quick succession are expected to do so from a single task, which makes the single lock almost irrelevant. If needed, multiple callback queues can be provided using any number of schemes. Perhaps most important, this variant of RCU does not affect the vanilla flavors, rcu_preempt and rcu_sched. The fact that RCU Tasks Trace readers can operate from idle, offline, and exception entry/exit in no way enables rcu_preempt and rcu_sched readers to do so. The memory ordering was outlined here: https://lore.kernel.org/lkml/20200319034030.GX3199@paulmck-ThinkPad-P72/ This effort benefited greatly from off-list discussions of BPF requirements with Alexei Starovoitov and Andrii Nakryiko. At least some of the on-list discussions are captured in the Link: tags below. In addition, KCSAN was quite helpful in finding some early bugs. Link: https://lore.kernel.org/lkml/20200219150744.428764577@infradead.org/ Link: https://lore.kernel.org/lkml/87mu8p797b.fsf@nanos.tec.linutronix.de/ Link: https://lore.kernel.org/lkml/20200225221305.605144982@linutronix.de/ Cc: Alexei Starovoitov <alexei.starovoitov@gmail.com> Cc: Andrii Nakryiko <andriin@fb.com> [ paulmck: Apply feedback from Steve Rostedt and Joel Fernandes. ] [ paulmck: Decrement trc_n_readers_need_end upon IPI failure. ] [ paulmck: Fix locking issue reported by rcutorture. ] Signed-off-by: Paul E. McKenney <paulmck@kernel.org> |
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Paul E. McKenney
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c84aad7654 |
rcu-tasks: Add an RCU-tasks rude variant
This commit adds a "rude" variant of RCU-tasks that has as quiescent states schedule(), cond_resched_tasks_rcu_qs(), userspace execution, and (in theory, anyway) cond_resched(). In other words, RCU-tasks rude readers are regions of code with preemption disabled, but excluding code early in the CPU-online sequence and late in the CPU-offline sequence. Updates make use of IPIs and force an IPI and a context switch on each online CPU. This variant is useful in some situations in tracing. Suggested-by: Steven Rostedt <rostedt@goodmis.org> [ paulmck: Apply EXPORT_SYMBOL_GPL() feedback from Qiujun Huang. ] Signed-off-by: Paul E. McKenney <paulmck@kernel.org> [ paulmck: Apply review feedback from Steve Rostedt. ] |
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Paul E. McKenney
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5873b8a94e |
rcu-tasks: Refactor RCU-tasks to allow variants to be added
This commit splits out generic processing from RCU-tasks-specific processing in order to allow additional flavors to be added. It also adds a def_bool TASKS_RCU_GENERIC to enable the common RCU-tasks infrastructure code. This is primarily, but not entirely, a code-movement commit. Signed-off-by: Paul E. McKenney <paulmck@kernel.org> |
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Sebastian Andrzej Siewior
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90326f0521 |
rcu: Use CONFIG_PREEMPTION where appropriate
The config option `CONFIG_PREEMPT' is used for the preemption model "Low-Latency Desktop". The config option `CONFIG_PREEMPTION' is enabled when kernel preemption is enabled which is true for the preemption model `CONFIG_PREEMPT' and `CONFIG_PREEMPT_RT'. Use `CONFIG_PREEMPTION' if it applies to both preemption models and not just to `CONFIG_PREEMPT'. Cc: "Paul E. McKenney" <paulmck@kernel.org> Cc: Josh Triplett <josh@joshtriplett.org> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com> Cc: Lai Jiangshan <jiangshanlai@gmail.com> Cc: Joel Fernandes <joel@joelfernandes.org> Cc: Davidlohr Bueso <dave@stgolabs.net> Cc: rcu@vger.kernel.org Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Signed-off-by: Paul E. McKenney <paulmck@kernel.org> |
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Lai Jiangshan
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b3e627d3d5 |
rcu: Make PREEMPT_RCU be a modifier to TREE_RCU
Currently PREEMPT_RCU and TREE_RCU are mutually exclusive Kconfig options. But PREEMPT_RCU actually specifies a kind of TREE_RCU, namely a preemptible TREE_RCU. This commit therefore makes PREEMPT_RCU be a modifer to the TREE_RCU Kconfig option. This has the benefit of simplifying several of the #if expressions that formerly needed to check both, but now need only check one or the other. Signed-off-by: Lai Jiangshan <laijs@linux.alibaba.com> Signed-off-by: Lai Jiangshan <jiangshanlai@gmail.com> Reviewed-by: Joel Fernandes (Google) <joel@joelfernandes.org> Signed-off-by: Paul E. McKenney <paulmck@kernel.org> |
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Thomas Gleixner
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01b1d88b09 |
rcu: Use CONFIG_PREEMPTION
CONFIG_PREEMPTION is selected by CONFIG_PREEMPT and by CONFIG_PREEMPT_RT. Both PREEMPT and PREEMPT_RT require the same functionality which today depends on CONFIG_PREEMPT. Switch the conditionals in RCU to use CONFIG_PREEMPTION. That's the first step towards RCU on RT. The further tweaks are work in progress. This neither touches the selftest bits which need a closer look by Paul. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Masami Hiramatsu <mhiramat@kernel.org> Cc: Paolo Bonzini <pbonzini@redhat.com> Cc: Paul E. McKenney <paulmck@linux.ibm.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Steven Rostedt <rostedt@goodmis.org> Link: http://lkml.kernel.org/r/20190726212124.210156346@linutronix.de Signed-off-by: Ingo Molnar <mingo@kernel.org> |
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Thomas Gleixner
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ec8f24b7fa |
treewide: Add SPDX license identifier - Makefile/Kconfig
Add SPDX license identifiers to all Make/Kconfig files which: - Have no license information of any form These files fall under the project license, GPL v2 only. The resulting SPDX license identifier is: GPL-2.0-only Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
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Paul E. McKenney
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a4cffdad73 |
time: Move CONTEXT_TRACKING to kernel/time/Kconfig
Both CONTEXT_TRACKING and CONTEXT_TRACKING_FORCE are currently defined in kernel/rcu/kconfig, which might have made sense at some point, but no longer does given that RCU refers to neither of these Kconfig options. Therefore move them to kernel/time/Kconfig, where the rest of the NO_HZ_FULL Kconfig options live. Signed-off-by: Paul E. McKenney <paulmck@linux.ibm.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Frederic Weisbecker <fweisbec@gmail.com> Link: https://lkml.kernel.org/r/20181220170525.GA12579@linux.ibm.com |
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Paul E. McKenney
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8c1cf2da6f |
rcu: Clean up flavor-related definitions and comments in Kconfig
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> |
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Paul E. McKenney
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82fcecfa81 |
rcu: Update comments and help text for no more RCU-bh updaters
This commit updates comments and help text to account for the fact that RCU-bh update-side functions are now simple wrappers for their RCU or RCU-sched counterparts. Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> |
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Paul E. McKenney
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7e42776d5e |
rcu: Drive TASKS_RCU directly off of PREEMPT
The actual use of TASKS_RCU is only when PREEMPT, otherwise RCU-sched is used instead. This commit therefore makes synchronize_rcu_tasks() and call_rcu_tasks() available always, but mapped to synchronize_sched() and call_rcu_sched(), respectively, when !PREEMPT. This approach also allows some #ifdefs to be removed from rcutorture. Reported-by: Ingo Molnar <mingo@kernel.org> Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Reviewed-by: Masami Hiramatsu <mhiramat@kernel.org> Acked-by: Ingo Molnar <mingo@kernel.org> |
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Paul E. McKenney
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6d48152eaf |
rcu: Remove RCU CPU stall warnings from Tiny RCU
Tiny RCU's job is to be tiny, so this commit removes its RCU CPU stall warning code. After this, there is no longer any need for rcu_sched_ctrlblk and rcu_bh_ctrlblk to be in tiny_plugin.h, so this commit also moves them to tiny.c. Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> |
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Paul E. McKenney
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0af92d4609 |
rcu: Move RCU non-debug Kconfig options to kernel/rcu
RCU's Kconfig options are scattered, and there are enough of them that it would be good for them to be more centralized. This commit therefore extracts RCU's Kconfig options from init/Kconfig into a new kernel/rcu/Kconfig file. Reported-by: Ingo Molnar <mingo@kernel.org> Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> |