arpi-5.15
684 Commits
| Author | SHA1 | Message | Date | |
|---|---|---|---|---|
Greg Kroah-Hartman
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e3d8fe0993 |
Merge 5.15.91 into android14-5.15
Changes in 5.15.91 memory: tegra: Remove clients SID override programming memory: atmel-sdramc: Fix missing clk_disable_unprepare in atmel_ramc_probe() memory: mvebu-devbus: Fix missing clk_disable_unprepare in mvebu_devbus_probe() dmaengine: ti: k3-udma: Do conditional decrement of UDMA_CHAN_RT_PEER_BCNT_REG arm64: dts: imx8mp-phycore-som: Remove invalid PMIC property ARM: dts: imx6ul-pico-dwarf: Use 'clock-frequency' ARM: dts: imx7d-pico: Use 'clock-frequency' ARM: dts: imx6qdl-gw560x: Remove incorrect 'uart-has-rtscts' arm64: dts: imx8mm-beacon: Fix ecspi2 pinmux ARM: imx: add missing of_node_put() HID: intel_ish-hid: Add check for ishtp_dma_tx_map arm64: dts: imx8mm-venice-gw7901: fix USB2 controller OC polarity soc: imx8m: Fix incorrect check for of_clk_get_by_name() reset: uniphier-glue: Use reset_control_bulk API reset: uniphier-glue: Fix possible null-ptr-deref EDAC/highbank: Fix memory leak in highbank_mc_probe() firmware: arm_scmi: Harden shared memory access in fetch_response firmware: arm_scmi: Harden shared memory access in fetch_notification tomoyo: fix broken dependency on *.conf.default RDMA/core: Fix ib block iterator counter overflow IB/hfi1: Reject a zero-length user expected buffer IB/hfi1: Reserve user expected TIDs IB/hfi1: Fix expected receive setup error exit issues IB/hfi1: Immediately remove invalid memory from hardware IB/hfi1: Remove user expected buffer invalidate race affs: initialize fsdata in affs_truncate() PM: AVS: qcom-cpr: Fix an error handling path in cpr_probe() arm64: dts: qcom: msm8992: Don't use sfpb mutex arm64: dts: qcom: msm8992-libra: Add CPU regulators arm64: dts: qcom: msm8992-libra: Fix the memory map phy: ti: fix Kconfig warning and operator precedence NFSD: fix use-after-free in nfsd4_ssc_setup_dul() ARM: dts: at91: sam9x60: fix the ddr clock for sam9x60 amd-xgbe: TX Flow Ctrl Registers are h/w ver dependent amd-xgbe: Delay AN timeout during KR training bpf: Fix pointer-leak due to insufficient speculative store bypass mitigation phy: rockchip-inno-usb2: Fix missing clk_disable_unprepare() in rockchip_usb2phy_power_on() net: nfc: Fix use-after-free in local_cleanup() net: wan: Add checks for NULL for utdm in undo_uhdlc_init and unmap_si_regs net: enetc: avoid deadlock in enetc_tx_onestep_tstamp() sch_htb: Avoid grafting on htb_destroy_class_offload when destroying htb gpio: use raw spinlock for gpio chip shadowed data gpio: mxc: Protect GPIO irqchip RMW with bgpio spinlock gpio: mxc: Always set GPIOs used as interrupt source to INPUT mode wifi: rndis_wlan: Prevent buffer overflow in rndis_query_oid pinctrl/rockchip: Use temporary variable for struct device pinctrl/rockchip: add error handling for pull/drive register getters pinctrl: rockchip: fix reading pull type on rk3568 net: stmmac: Fix queue statistics reading net/sched: sch_taprio: fix possible use-after-free l2tp: Serialize access to sk_user_data with sk_callback_lock l2tp: Don't sleep and disable BH under writer-side sk_callback_lock l2tp: convert l2tp_tunnel_list to idr l2tp: close all race conditions in l2tp_tunnel_register() octeontx2-pf: Avoid use of GFP_KERNEL in atomic context net: usb: sr9700: Handle negative len net: mdio: validate parameter addr in mdiobus_get_phy() HID: check empty report_list in hid_validate_values() HID: check empty report_list in bigben_probe() net: stmmac: fix invalid call to mdiobus_get_phy() pinctrl: rockchip: fix mux route data for rk3568 HID: revert CHERRY_MOUSE_000C quirk usb: gadget: f_fs: Prevent race during ffs_ep0_queue_wait usb: gadget: f_fs: Ensure ep0req is dequeued before free_request Bluetooth: Fix possible deadlock in rfcomm_sk_state_change net: ipa: disable ipa interrupt during suspend net/mlx5: E-switch, Fix setting of reserved fields on MODIFY_SCHEDULING_ELEMENT net: mlx5: eliminate anonymous module_init & module_exit drm/panfrost: fix GENERIC_ATOMIC64 dependency dmaengine: Fix double increment of client_count in dma_chan_get() net: macb: fix PTP TX timestamp failure due to packet padding virtio-net: correctly enable callback during start_xmit l2tp: prevent lockdep issue in l2tp_tunnel_register() HID: betop: check shape of output reports cifs: fix potential deadlock in cache_refresh_path() dmaengine: xilinx_dma: call of_node_put() when breaking out of for_each_child_of_node() phy: phy-can-transceiver: Skip warning if no "max-bitrate" drm/amd/display: fix issues with driver unload nvme-pci: fix timeout request state check tcp: avoid the lookup process failing to get sk in ehash table octeontx2-pf: Fix the use of GFP_KERNEL in atomic context on rt ptdma: pt_core_execute_cmd() should use spinlock device property: fix of node refcount leak in fwnode_graph_get_next_endpoint() w1: fix deadloop in __w1_remove_master_device() w1: fix WARNING after calling w1_process() driver core: Fix test_async_probe_init saves device in wrong array selftests/net: toeplitz: fix race on tpacket_v3 block close net: dsa: microchip: ksz9477: port map correction in ALU table entry register thermal/core: Remove duplicate information when an error occurs thermal/core: Rename 'trips' to 'num_trips' thermal: Validate new state in cur_state_store() thermal/core: fix error code in __thermal_cooling_device_register() thermal: core: call put_device() only after device_register() fails net: stmmac: enable all safety features by default tcp: fix rate_app_limited to default to 1 scsi: iscsi: Fix multiple iSCSI session unbind events sent to userspace cpufreq: Add Tegra234 to cpufreq-dt-platdev blocklist kcsan: test: don't put the expect array on the stack cpufreq: Add SM6375 to cpufreq-dt-platdev blocklist ASoC: fsl_micfil: Correct the number of steps on SX controls net: usb: cdc_ether: add support for Thales Cinterion PLS62-W modem drm: Add orientation quirk for Lenovo ideapad D330-10IGL s390/debug: add _ASM_S390_ prefix to header guard s390: expicitly align _edata and _end symbols on page boundary perf/x86/msr: Add Emerald Rapids perf/x86/intel/uncore: Add Emerald Rapids cpufreq: armada-37xx: stop using 0 as NULL pointer ASoC: fsl_ssi: Rename AC'97 streams to avoid collisions with AC'97 CODEC ASoC: fsl-asoc-card: Fix naming of AC'97 CODEC widgets spi: spidev: remove debug messages that access spidev->spi without locking KVM: s390: interrupt: use READ_ONCE() before cmpxchg() scsi: hisi_sas: Set a port invalid only if there are no devices attached when refreshing port id r8152: add vendor/device ID pair for Microsoft Devkit platform/x86: touchscreen_dmi: Add info for the CSL Panther Tab HD platform/x86: asus-nb-wmi: Add alternate mapping for KEY_SCREENLOCK lockref: stop doing cpu_relax in the cmpxchg loop firmware: coreboot: Check size of table entry and use flex-array drm/i915: Allow switching away via vga-switcheroo if uninitialized Revert "selftests/bpf: check null propagation only neither reg is PTR_TO_BTF_ID" drm/i915: Remove unused variable x86: ACPI: cstate: Optimize C3 entry on AMD CPUs fs: reiserfs: remove useless new_opts in reiserfs_remount sysctl: add a new register_sysctl_init() interface kernel/panic: move panic sysctls to its own file panic: unset panic_on_warn inside panic() ubsan: no need to unset panic_on_warn in ubsan_epilogue() kasan: no need to unset panic_on_warn in end_report() exit: Add and use make_task_dead. objtool: Add a missing comma to avoid string concatenation hexagon: Fix function name in die() h8300: Fix build errors from do_exit() to make_task_dead() transition csky: Fix function name in csky_alignment() and die() ia64: make IA64_MCA_RECOVERY bool instead of tristate panic: Separate sysctl logic from CONFIG_SMP exit: Put an upper limit on how often we can oops exit: Expose "oops_count" to sysfs exit: Allow oops_limit to be disabled panic: Consolidate open-coded panic_on_warn checks panic: Introduce warn_limit panic: Expose "warn_count" to sysfs docs: Fix path paste-o for /sys/kernel/warn_count exit: Use READ_ONCE() for all oops/warn limit reads Bluetooth: hci_sync: cancel cmd_timer if hci_open failed drm/amdgpu: complete gfxoff allow signal during suspend without delay scsi: hpsa: Fix allocation size for scsi_host_alloc() KVM: SVM: fix tsc scaling cache logic module: Don't wait for GOING modules tracing: Make sure trace_printk() can output as soon as it can be used trace_events_hist: add check for return value of 'create_hist_field' ftrace/scripts: Update the instructions for ftrace-bisect.sh cifs: Fix oops due to uncleared server->smbd_conn in reconnect i2c: mv64xxx: Remove shutdown method from driver i2c: mv64xxx: Add atomic_xfer method to driver ksmbd: add smbd max io size parameter ksmbd: add max connections parameter ksmbd: do not sign response to session request for guest login ksmbd: downgrade ndr version error message to debug ksmbd: limit pdu length size according to connection status ovl: fail on invalid uid/gid mapping at copy up KVM: x86/vmx: Do not skip segment attributes if unusable bit is set KVM: arm64: GICv4.1: Fix race with doorbell on VPE activation/deactivation thermal: intel: int340x: Protect trip temperature from concurrent updates ipv6: fix reachability confirmation with proxy_ndp ARM: 9280/1: mm: fix warning on phys_addr_t to void pointer assignment EDAC/device: Respect any driver-supplied workqueue polling value EDAC/qcom: Do not pass llcc_driv_data as edac_device_ctl_info's pvt_info net: mana: Fix IRQ name - add PCI and queue number scsi: ufs: core: Fix devfreq deadlocks i2c: designware: use casting of u64 in clock multiplication to avoid overflow netlink: prevent potential spectre v1 gadgets net: fix UaF in netns ops registration error path drm/i915/selftest: fix intel_selftest_modify_policy argument types netfilter: nft_set_rbtree: Switch to node list walk for overlap detection netfilter: nft_set_rbtree: skip elements in transaction from garbage collection netlink: annotate data races around nlk->portid netlink: annotate data races around dst_portid and dst_group netlink: annotate data races around sk_state ipv4: prevent potential spectre v1 gadget in ip_metrics_convert() ipv4: prevent potential spectre v1 gadget in fib_metrics_match() netfilter: conntrack: fix vtag checks for ABORT/SHUTDOWN_COMPLETE netrom: Fix use-after-free of a listening socket. net/sched: sch_taprio: do not schedule in taprio_reset() sctp: fail if no bound addresses can be used for a given scope riscv/kprobe: Fix instruction simulation of JALR nvme: fix passthrough csi check gpio: mxc: Unlock on error path in mxc_flip_edge() ravb: Rename "no_ptp_cfg_active" and "ptp_cfg_active" variables net: ravb: Fix lack of register setting after system resumed for Gen3 net: ravb: Fix possible hang if RIS2_QFF1 happen net: mctp: mark socks as dead on unhash, prevent re-add thermal: intel: int340x: Add locking to int340x_thermal_get_trip_type() net/tg3: resolve deadlock in tg3_reset_task() during EEH net: mdio-mux-meson-g12a: force internal PHY off on mux switch treewide: fix up files incorrectly marked executable tools: gpio: fix -c option of gpio-event-mon Revert "Input: synaptics - switch touchpad on HP Laptop 15-da3001TU to RMI mode" cpufreq: Move to_gov_attr_set() to cpufreq.h cpufreq: governor: Use kobject release() method to free dbs_data kbuild: Allow kernel installation packaging to override pkg-config block: fix and cleanup bio_check_ro x86/i8259: Mark legacy PIC interrupts with IRQ_LEVEL netfilter: conntrack: unify established states for SCTP paths perf/x86/amd: fix potential integer overflow on shift of a int Linux 5.15.91 Change-Id: I3349d802533097ac86e5c680fbd40c00c9719ec7 Signed-off-by: Greg Kroah-Hartman <gregkh@google.com> |
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tangmeng
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191f1f1f6a |
kernel/panic: move panic sysctls to its own file
commit 9df918698408fd914493aba0b7858fef50eba63a upstream. kernel/sysctl.c is a kitchen sink where everyone leaves their dirty dishes, this makes it very difficult to maintain. To help with this maintenance let's start by moving sysctls to places where they actually belong. The proc sysctl maintainers do not want to know what sysctl knobs you wish to add for your own piece of code, we just care about the core logic. All filesystem syctls now get reviewed by fs folks. This commit follows the commit of fs, move the oops_all_cpu_backtrace sysctl to its own file, kernel/panic.c. Signed-off-by: tangmeng <tangmeng@uniontech.com> Signed-off-by: Luis Chamberlain <mcgrof@kernel.org> Signed-off-by: Eric Biggers <ebiggers@google.com> Signed-off-by: Sasha Levin <sashal@kernel.org> |
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Greg Kroah-Hartman
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b3d82fd3de |
Merge 5.15.82 into android14-5.15
Changes in 5.15.82
arm64: mte: Avoid setting PG_mte_tagged if no tags cleared or restored
drm/i915: Create a dummy object for gen6 ppgtt
drm/i915/gt: Use i915_vm_put on ppgtt_create error paths
erofs: fix order >= MAX_ORDER warning due to crafted negative i_size
btrfs: sink iterator parameter to btrfs_ioctl_logical_to_ino
btrfs: free btrfs_path before copying inodes to userspace
spi: spi-imx: Fix spi_bus_clk if requested clock is higher than input clock
btrfs: move QUOTA_ENABLED check to rescan_should_stop from btrfs_qgroup_rescan_worker
btrfs: qgroup: fix sleep from invalid context bug in btrfs_qgroup_inherit()
drm/display/dp_mst: Fix drm_dp_mst_add_affected_dsc_crtcs() return code
drm/amdgpu: update drm_display_info correctly when the edid is read
drm/amdgpu: Partially revert "drm/amdgpu: update drm_display_info correctly when the edid is read"
iio: health: afe4403: Fix oob read in afe4403_read_raw
iio: health:
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Linus Torvalds
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48642f9431 |
proc: proc_skip_spaces() shouldn't think it is working on C strings
commit bce9332220bd677d83b19d21502776ad555a0e73 upstream. proc_skip_spaces() seems to think it is working on C strings, and ends up being just a wrapper around skip_spaces() with a really odd calling convention. Instead of basing it on skip_spaces(), it should have looked more like proc_skip_char(), which really is the exact same function (except it skips a particular character, rather than whitespace). So use that as inspiration, odd coding and all. Now the calling convention actually makes sense and works for the intended purpose. Reported-and-tested-by: Kyle Zeng <zengyhkyle@gmail.com> Acked-by: Eric Dumazet <edumazet@google.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
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Linus Torvalds
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3eb9213f66 |
proc: avoid integer type confusion in get_proc_long
commit e6cfaf34be9fcd1a8285a294e18986bfc41a409c upstream. proc_get_long() is passed a size_t, but then assigns it to an 'int' variable for the length. Let's not do that, even if our IO paths are limited to MAX_RW_COUNT (exactly because of these kinds of type errors). So do the proper test in the rigth type. Reported-by: Kyle Zeng <zengyhkyle@gmail.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
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Greg Kroah-Hartman
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6d2ac8a0a4 |
Merge 5.15.58 into android14-5.15
Changes in 5.15.58 pinctrl: stm32: fix optional IRQ support to gpios riscv: add as-options for modules with assembly compontents mlxsw: spectrum_router: Fix IPv4 nexthop gateway indication lockdown: Fix kexec lockdown bypass with ima policy drm/ttm: fix locking in vmap/vunmap TTM GEM helpers bus: mhi: host: pci_generic: add Telit FN980 v1 hardware revision bus: mhi: host: pci_generic: add Telit FN990 Revert "selftest/vm: verify remap destination address in mremap_test" Revert "selftest/vm: verify mmap addr in mremap_test" PCI: hv: Fix multi-MSI to allow more than one MSI vector PCI: hv: Fix hv_arch_irq_unmask() for multi-MSI PCI: hv: Reuse existing IRTE allocation in compose_msi_msg() PCI: hv: Fix interrupt mapping for multi-MSI serial: mvebu-uart: correctly report configured baudrate value batman-adv: Use netif_rx_any_context() any. Revert "mt76: mt7921: Fix the error handling path of mt7921_pci_probe()" Revert "mt76: mt7921e: fix possible probe failure after reboot" mt76: mt7921: use physical addr to unify register access mt76: mt7921e: fix possible probe failure after reboot mt76: mt7921: Fix the error handling path of mt7921_pci_probe() xfs: fix maxlevels comparisons in the btree staging code xfs: fold perag loop iteration logic into helper function xfs: rename the next_agno perag iteration variable xfs: terminate perag iteration reliably on agcount xfs: fix perag reference leak on iteration race with growfs xfs: prevent a WARN_ONCE() in xfs_ioc_attr_list() r8152: fix a WOL issue ip: Fix data-races around sysctl_ip_default_ttl. xfrm: xfrm_policy: fix a possible double xfrm_pols_put() in xfrm_bundle_lookup() power/reset: arm-versatile: Fix refcount leak in versatile_reboot_probe RDMA/irdma: Do not advertise 1GB page size for x722 RDMA/irdma: Fix sleep from invalid context BUG pinctrl: ralink: rename MT7628(an) functions to MT76X8 pinctrl: ralink: rename pinctrl-rt2880 to pinctrl-ralink pinctrl: ralink: Check for null return of devm_kcalloc perf/core: Fix data race between perf_event_set_output() and perf_mmap_close() ipv4/tcp: do not use per netns ctl sockets net: tun: split run_ebpf_filter() and pskb_trim() into different "if statement" mm/pagealloc: sysctl: change watermark_scale_factor max limit to 30% sysctl: move some boundary constants from sysctl.c to sysctl_vals tcp: Fix data-races around sysctl_tcp_ecn. drm/amd/display: Support for DMUB HPD interrupt handling drm/amd/display: Add option to defer works of hpd_rx_irq drm/amd/display: Fork thread to offload work of hpd_rx_irq drm/amdgpu/display: add quirk handling for stutter mode drm/amd/display: Ignore First MST Sideband Message Return Error scsi: megaraid: Clear READ queue map's nr_queues scsi: ufs: core: Drop loglevel of WriteBoost message nvme: check for duplicate identifiers earlier nvme: fix block device naming collision e1000e: Enable GPT clock before sending message to CSME Revert "e1000e: Fix possible HW unit hang after an s0ix exit" igc: Reinstate IGC_REMOVED logic and implement it properly ip: Fix data-races around sysctl_ip_no_pmtu_disc. ip: Fix data-races around sysctl_ip_fwd_use_pmtu. ip: Fix data-races around sysctl_ip_fwd_update_priority. ip: Fix data-races around sysctl_ip_nonlocal_bind. ip: Fix a data-race around sysctl_ip_autobind_reuse. ip: Fix a data-race around sysctl_fwmark_reflect. tcp/dccp: Fix a data-race around sysctl_tcp_fwmark_accept. tcp: sk->sk_bound_dev_if once in inet_request_bound_dev_if() tcp: Fix data-races around sysctl_tcp_l3mdev_accept. tcp: Fix data-races around sysctl_tcp_mtu_probing. tcp: Fix data-races around sysctl_tcp_base_mss. tcp: Fix data-races around sysctl_tcp_min_snd_mss. tcp: Fix a data-race around sysctl_tcp_mtu_probe_floor. tcp: Fix a data-race around sysctl_tcp_probe_threshold. tcp: Fix a data-race around sysctl_tcp_probe_interval. net: stmmac: fix pm runtime issue in stmmac_dvr_remove() net: stmmac: fix unbalanced ptp clock issue in suspend/resume flow mtd: rawnand: gpmi: validate controller clock rate mtd: rawnand: gpmi: Set WAIT_FOR_READY timeout based on program/erase times net: dsa: microchip: ksz_common: Fix refcount leak bug net: skb: introduce kfree_skb_reason() net: skb: use kfree_skb_reason() in tcp_v4_rcv() net: skb: use kfree_skb_reason() in __udp4_lib_rcv() net: socket: rename SKB_DROP_REASON_SOCKET_FILTER net: skb_drop_reason: add document for drop reasons net: netfilter: use kfree_drop_reason() for NF_DROP net: ipv4: use kfree_skb_reason() in ip_rcv_core() net: ipv4: use kfree_skb_reason() in ip_rcv_finish_core() i2c: mlxcpld: Fix register setting for 400KHz frequency i2c: cadence: Change large transfer count reset logic to be unconditional perf tests: Fix Convert perf time to TSC test for hybrid net: stmmac: fix dma queue left shift overflow issue net/tls: Fix race in TLS device down flow igmp: Fix data-races around sysctl_igmp_llm_reports. igmp: Fix a data-race around sysctl_igmp_max_memberships. igmp: Fix data-races around sysctl_igmp_max_msf. tcp: Fix data-races around keepalive sysctl knobs. tcp: Fix data-races around sysctl_tcp_syn(ack)?_retries. tcp: Fix data-races around sysctl_tcp_syncookies. tcp: Fix data-races around sysctl_tcp_migrate_req. tcp: Fix data-races around sysctl_tcp_reordering. tcp: Fix data-races around some timeout sysctl knobs. tcp: Fix a data-race around sysctl_tcp_notsent_lowat. tcp: Fix a data-race around sysctl_tcp_tw_reuse. tcp: Fix data-races around sysctl_max_syn_backlog. tcp: Fix data-races around sysctl_tcp_fastopen. tcp: Fix data-races around sysctl_tcp_fastopen_blackhole_timeout. iavf: Fix handling of dummy receive descriptors pinctrl: armada-37xx: Use temporary variable for struct device pinctrl: armada-37xx: Make use of the devm_platform_ioremap_resource() pinctrl: armada-37xx: Convert to use dev_err_probe() pinctrl: armada-37xx: use raw spinlocks for regmap to avoid invalid wait context i40e: Fix erroneous adapter reinitialization during recovery process ixgbe: Add locking to prevent panic when setting sriov_numvfs to zero net: stmmac: remove redunctant disable xPCS EEE call gpio: pca953x: only use single read/write for No AI mode gpio: pca953x: use the correct range when do regmap sync gpio: pca953x: use the correct register address when regcache sync during init be2net: Fix buffer overflow in be_get_module_eeprom net: dsa: sja1105: silent spi_device_id warnings net: dsa: vitesse-vsc73xx: silent spi_device_id warnings drm/imx/dcss: Add missing of_node_put() in fail path ipv4: Fix a data-race around sysctl_fib_multipath_use_neigh. ipv4: Fix data-races around sysctl_fib_multipath_hash_policy. ipv4: Fix data-races around sysctl_fib_multipath_hash_fields. ip: Fix data-races around sysctl_ip_prot_sock. udp: Fix a data-race around sysctl_udp_l3mdev_accept. tcp: Fix data-races around sysctl knobs related to SYN option. tcp: Fix a data-race around sysctl_tcp_early_retrans. tcp: Fix data-races around sysctl_tcp_recovery. tcp: Fix a data-race around sysctl_tcp_thin_linear_timeouts. tcp: Fix data-races around sysctl_tcp_slow_start_after_idle. tcp: Fix a data-race around sysctl_tcp_retrans_collapse. tcp: Fix a data-race around sysctl_tcp_stdurg. tcp: Fix a data-race around sysctl_tcp_rfc1337. tcp: Fix a data-race around sysctl_tcp_abort_on_overflow. tcp: Fix data-races around sysctl_tcp_max_reordering. gpio: gpio-xilinx: Fix integer overflow KVM: selftests: Fix target thread to be migrated in rseq_test spi: bcm2835: bcm2835_spi_handle_err(): fix NULL pointer deref for non DMA transfers KVM: Don't null dereference ops->destroy mm/mempolicy: fix uninit-value in mpol_rebind_policy() bpf: Make sure mac_header was set before using it sched/deadline: Fix BUG_ON condition for deboosted tasks x86/bugs: Warn when "ibrs" mitigation is selected on Enhanced IBRS parts dlm: fix pending remove if msg allocation fails x86/uaccess: Implement macros for CMPXCHG on user addresses x86/extable: Tidy up redundant handler functions x86/extable: Get rid of redundant macros x86/mce: Deduplicate exception handling x86/extable: Rework the exception table mechanics x86/extable: Provide EX_TYPE_DEFAULT_MCE_SAFE and EX_TYPE_FAULT_MCE_SAFE bitfield.h: Fix "type of reg too small for mask" test x86/entry_32: Remove .fixup usage x86/extable: Extend extable functionality x86/msr: Remove .fixup usage x86/futex: Remove .fixup usage KVM: x86: Use __try_cmpxchg_user() to emulate atomic accesses xhci: dbc: refactor xhci_dbc_init() xhci: dbc: create and remove dbc structure in dbgtty driver. xhci: dbc: Rename xhci_dbc_init and xhci_dbc_exit xhci: Set HCD flag to defer primary roothub registration mt76: fix use-after-free by removing a non-RCU wcid pointer iwlwifi: fw: uefi: add missing include guards crypto: qat - set to zero DH parameters before free crypto: qat - use pre-allocated buffers in datapath crypto: qat - refactor submission logic crypto: qat - add backlog mechanism crypto: qat - fix memory leak in RSA crypto: qat - remove dma_free_coherent() for RSA crypto: qat - remove dma_free_coherent() for DH crypto: qat - add param check for RSA crypto: qat - add param check for DH crypto: qat - re-enable registration of algorithms exfat: fix referencing wrong parent directory information after renaming tracing: Have event format check not flag %p* on __get_dynamic_array() tracing: Place trace_pid_list logic into abstract functions tracing: Fix return value of trace_pid_write() um: virtio_uml: Allow probing from devicetree um: virtio_uml: Fix broken device handling in time-travel Bluetooth: Add bt_skb_sendmsg helper Bluetooth: Add bt_skb_sendmmsg helper Bluetooth: SCO: Replace use of memcpy_from_msg with bt_skb_sendmsg Bluetooth: RFCOMM: Replace use of memcpy_from_msg with bt_skb_sendmmsg Bluetooth: Fix passing NULL to PTR_ERR Bluetooth: SCO: Fix sco_send_frame returning skb->len Bluetooth: Fix bt_skb_sendmmsg not allocating partial chunks exfat: use updated exfat_chain directly during renaming drm/amd/display: Reset DMCUB before HW init drm/amd/display: Optimize bandwidth on following fast update drm/amd/display: Fix surface optimization regression on Carrizo x86/amd: Use IBPB for firmware calls x86/alternative: Report missing return thunk details watchqueue: make sure to serialize 'wqueue->defunct' properly tty: drivers/tty/, stop using tty_schedule_flip() tty: the rest, stop using tty_schedule_flip() tty: drop tty_schedule_flip() tty: extract tty_flip_buffer_commit() from tty_flip_buffer_push() tty: use new tty_insert_flip_string_and_push_buffer() in pty_write() net: usb: ax88179_178a needs FLAG_SEND_ZLP watch-queue: remove spurious double semicolon drm/amd/display: Don't lock connection_mutex for DMUB HPD drm/amd/display: invalid parameter check in dmub_hpd_callback x86/extable: Prefer local labels in .set directives KVM: x86: fix typo in __try_cmpxchg_user causing non-atomicness x86: drop bogus "cc" clobber from __try_cmpxchg_user_asm() drm/amdgpu: Off by one in dm_dmub_outbox1_low_irq() x86/entry_32: Fix segment exceptions drm/amd/display: Fix wrong format specifier in amdgpu_dm.c Linux 5.15.58 Signed-off-by: Greg Kroah-Hartman <gregkh@google.com> Change-Id: I6655a937b4226d3011278d13df84b25e5ab4b9ef |
||
Xiaoming Ni
|
9cb4959493 |
sysctl: move some boundary constants from sysctl.c to sysctl_vals
[ Upstream commit 78e36f3b0dae586f623c4a37ec5eb5496f5abbe1 ] sysctl has helpers which let us specify boundary values for a min or max int value. Since these are used for a boundary check only they don't change, so move these variables to sysctl_vals to avoid adding duplicate variables. This will help with our cleanup of kernel/sysctl.c. [akpm@linux-foundation.org: update it for "mm/pagealloc: sysctl: change watermark_scale_factor max limit to 30%"] [mcgrof@kernel.org: major rebase] Link: https://lkml.kernel.org/r/20211123202347.818157-3-mcgrof@kernel.org Signed-off-by: Xiaoming Ni <nixiaoming@huawei.com> Signed-off-by: Luis Chamberlain <mcgrof@kernel.org> Reviewed-by: Kees Cook <keescook@chromium.org> Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: Amir Goldstein <amir73il@gmail.com> Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Cc: Benjamin LaHaise <bcrl@kvack.org> Cc: "Eric W. Biederman" <ebiederm@xmission.com> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Iurii Zaikin <yzaikin@google.com> Cc: Jan Kara <jack@suse.cz> Cc: Paul Turner <pjt@google.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Petr Mladek <pmladek@suse.com> Cc: Qing Wang <wangqing@vivo.com> Cc: Sebastian Reichel <sre@kernel.org> Cc: Sergey Senozhatsky <senozhatsky@chromium.org> Cc: Stephen Kitt <steve@sk2.org> Cc: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> Cc: Antti Palosaari <crope@iki.fi> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Clemens Ladisch <clemens@ladisch.de> Cc: David Airlie <airlied@linux.ie> Cc: Jani Nikula <jani.nikula@linux.intel.com> Cc: Joel Becker <jlbec@evilplan.org> Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Cc: Joseph Qi <joseph.qi@linux.alibaba.com> Cc: Julia Lawall <julia.lawall@inria.fr> Cc: Lukas Middendorf <kernel@tuxforce.de> Cc: Mark Fasheh <mark@fasheh.com> Cc: Phillip Potter <phil@philpotter.co.uk> Cc: Rodrigo Vivi <rodrigo.vivi@intel.com> Cc: Douglas Gilbert <dgilbert@interlog.com> Cc: James E.J. Bottomley <jejb@linux.ibm.com> Cc: Jani Nikula <jani.nikula@intel.com> Cc: John Ogness <john.ogness@linutronix.de> Cc: Martin K. Petersen <martin.petersen@oracle.com> Cc: "Rafael J. Wysocki" <rafael@kernel.org> Cc: Steven Rostedt (VMware) <rostedt@goodmis.org> Cc: Suren Baghdasaryan <surenb@google.com> Cc: "Theodore Ts'o" <tytso@mit.edu> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Sasha Levin <sashal@kernel.org> |
||
Suren Baghdasaryan
|
e2b6c5f7ee |
mm/pagealloc: sysctl: change watermark_scale_factor max limit to 30%
[ Upstream commit 39c65a94cd9661532be150e88f8b02f4a6844a35 ] For embedded systems with low total memory, having to run applications with relatively large memory requirements, 10% max limitation for watermark_scale_factor poses an issue of triggering direct reclaim every time such application is started. This results in slow application startup times and bad end-user experience. By increasing watermark_scale_factor max limit we allow vendors more flexibility to choose the right level of kswapd aggressiveness for their device and workload requirements. Link: https://lkml.kernel.org/r/20211124193604.2758863-1-surenb@google.com Signed-off-by: Suren Baghdasaryan <surenb@google.com> Acked-by: Johannes Weiner <hannes@cmpxchg.org> Cc: Michal Hocko <mhocko@suse.com> Cc: Lukas Middendorf <kernel@tuxforce.de> Cc: Antti Palosaari <crope@iki.fi> Cc: Luis Chamberlain <mcgrof@kernel.org> Cc: Kees Cook <keescook@chromium.org> Cc: Iurii Zaikin <yzaikin@google.com> Cc: Dave Hansen <dave.hansen@linux.intel.com> Cc: Vlastimil Babka <vbabka@suse.cz> Cc: Mel Gorman <mgorman@techsingularity.net> Cc: Jonathan Corbet <corbet@lwn.net> Cc: Zhang Yi <yi.zhang@huawei.com> Cc: Fengfei Xi <xi.fengfei@h3c.com> Cc: Mike Rapoport <rppt@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Sasha Levin <sashal@kernel.org> |
||
|
Greg Kroah-Hartman
|
56f32ebb01 |
Merge 5.15.56 into android14-5.15
Changes in 5.15.56
ALSA: hda - Add fixup for Dell Latitidue E5430
ALSA: hda/conexant: Apply quirk for another HP ProDesk 600 G3 model
ALSA: hda/realtek: Fix headset mic for Acer SF313-51
ALSA: hda/realtek - Fix headset mic problem for a HP machine with alc671
ALSA: hda/realtek: fix mute/micmute LEDs for HP machines
ALSA: hda/realtek - Fix headset mic problem for a HP machine with alc221
ALSA: hda/realtek - Enable the headset-mic on a Xiaomi's laptop
xen/netback: avoid entering xenvif_rx_next_skb() with an empty rx queue
fix race between exit_itimers() and /proc/pid/timers
mm: userfaultfd: fix UFFDIO_CONTINUE on fallocated shmem pages
mm: split huge PUD on wp_huge_pud fallback
tracing/histograms: Fix memory leak problem
net: sock: tracing: Fix sock_exceed_buf_limit not to dereference stale pointer
ip: fix dflt addr selection for connected nexthop
ARM: 9213/1: Print message about disabled Spectre workarounds only once
ARM: 9214/1: alignment: advance IT state after emulating Thumb instruction
wifi: mac80211: fix queue selection for mesh/OCB interfaces
cgroup: Use separate src/dst nodes when preloading css_sets for migration
btrfs: return -EAGAIN for NOWAIT dio reads/writes on compressed and inline extents
drm/panfrost: Put mapping instead of shmem obj on panfrost_mmu_map_fault_addr() error
drm/panfrost: Fix shrinker list corruption by madvise IOCTL
fs/remap: constrain dedupe of EOF blocks
nilfs2: fix incorrect masking of permission flags for symlinks
sh: convert nommu io{re,un}map() to static inline functions
Revert "evm: Fix memleak in init_desc"
xfs: only run COW extent recovery when there are no live extents
xfs: don't include bnobt blocks when reserving free block pool
xfs: run callbacks before waking waiters in xlog_state_shutdown_callbacks
xfs: drop async cache flushes from CIL commits.
reset: Fix devm bulk optional exclusive control getter
ARM: dts: imx6qdl-ts7970: Fix ngpio typo and count
spi: amd: Limit max transfer and message size
ARM: 9209/1: Spectre-BHB: avoid pr_info() every time a CPU comes out of idle
ARM: 9210/1: Mark the FDT_FIXED sections as shareable
net/mlx5e: kTLS, Fix build time constant test in TX
net/mlx5e: kTLS, Fix build time constant test in RX
net/mlx5e: Fix enabling sriov while tc nic rules are offloaded
net/mlx5e: Fix capability check for updating vnic env counters
net/mlx5e: Ring the TX doorbell on DMA errors
drm/i915: fix a possible refcount leak in intel_dp_add_mst_connector()
ima: Fix a potential integer overflow in ima_appraise_measurement
ASoC: sgtl5000: Fix noise on shutdown/remove
ASoC: tas2764: Add post reset delays
ASoC: tas2764: Fix and extend FSYNC polarity handling
ASoC: tas2764: Correct playback volume range
ASoC: tas2764: Fix amp gain register offset & default
ASoC: Intel: Skylake: Correct the ssp rate discovery in skl_get_ssp_clks()
ASoC: Intel: Skylake: Correct the handling of fmt_config flexible array
net: stmmac: dwc-qos: Disable split header for Tegra194
net: ethernet: ti: am65-cpsw: Fix devlink port register sequence
sysctl: Fix data races in proc_dointvec().
sysctl: Fix data races in proc_douintvec().
sysctl: Fix data races in proc_dointvec_minmax().
sysctl: Fix data races in proc_douintvec_minmax().
sysctl: Fix data races in proc_doulongvec_minmax().
sysctl: Fix data races in proc_dointvec_jiffies().
tcp: Fix a data-race around sysctl_tcp_max_orphans.
inetpeer: Fix data-races around sysctl.
net: Fix data-races around sysctl_mem.
cipso: Fix data-races around sysctl.
icmp: Fix data-races around sysctl.
ipv4: Fix a data-race around sysctl_fib_sync_mem.
ARM: dts: at91: sama5d2: Fix typo in i2s1 node
ARM: dts: sunxi: Fix SPI NOR campatible on Orange Pi Zero
arm64: dts: broadcom: bcm4908: Fix timer node for BCM4906 SoC
arm64: dts: broadcom: bcm4908: Fix cpu node for smp boot
netfilter: nf_log: incorrect offset to network header
netfilter: nf_tables: replace BUG_ON by element length check
drm/i915/gvt: IS_ERR() vs NULL bug in intel_gvt_update_reg_whitelist()
xen/gntdev: Ignore failure to unmap INVALID_GRANT_HANDLE
lockd: set fl_owner when unlocking files
lockd: fix nlm_close_files
tracing: Fix sleeping while atomic in kdb ftdump
drm/i915/selftests: fix a couple IS_ERR() vs NULL tests
drm/i915/dg2: Add Wa_22011100796
drm/i915/gt: Serialize GRDOM access between multiple engine resets
drm/i915/gt: Serialize TLB invalidates with GT resets
drm/i915/uc: correctly track uc_fw init failure
drm/i915: Require the vm mutex for i915_vma_bind()
bnxt_en: Fix bnxt_reinit_after_abort() code path
bnxt_en: Fix bnxt_refclk_read()
sysctl: Fix data-races in proc_dou8vec_minmax().
sysctl: Fix data-races in proc_dointvec_ms_jiffies().
icmp: Fix data-races around sysctl_icmp_echo_enable_probe.
icmp: Fix a data-race around sysctl_icmp_ignore_bogus_error_responses.
icmp: Fix a data-race around sysctl_icmp_errors_use_inbound_ifaddr.
icmp: Fix a data-race around sysctl_icmp_ratelimit.
icmp: Fix a data-race around sysctl_icmp_ratemask.
raw: Fix a data-race around sysctl_raw_l3mdev_accept.
tcp: Fix a data-race around sysctl_tcp_ecn_fallback.
ipv4: Fix data-races around sysctl_ip_dynaddr.
nexthop: Fix data-races around nexthop_compat_mode.
net: ftgmac100: Hold reference returned by of_get_child_by_name()
net: stmmac: fix leaks in probe
ima: force signature verification when CONFIG_KEXEC_SIG is configured
ima: Fix potential memory leak in ima_init_crypto()
drm/amd/display: Only use depth 36 bpp linebuffers on DCN display engines.
drm/amd/pm: Prevent divide by zero
sfc: fix use after free when disabling sriov
ceph: switch netfs read ops to use rreq->inode instead of rreq->mapping->host
seg6: fix skb checksum evaluation in SRH encapsulation/insertion
seg6: fix skb checksum in SRv6 End.B6 and End.B6.Encaps behaviors
seg6: bpf: fix skb checksum in bpf_push_seg6_encap()
sfc: fix kernel panic when creating VF
net: atlantic: remove deep parameter on suspend/resume functions
net: atlantic: remove aq_nic_deinit() when resume
KVM: x86: Fully initialize 'struct kvm_lapic_irq' in kvm_pv_kick_cpu_op()
net/tls: Check for errors in tls_device_init
ACPI: video: Fix acpi_video_handles_brightness_key_presses()
mm: sysctl: fix missing numa_stat when !CONFIG_HUGETLB_PAGE
btrfs: rename btrfs_bio to btrfs_io_context
btrfs: zoned: fix a leaked bioc in read_zone_info
ksmbd: use SOCK_NONBLOCK type for kernel_accept()
powerpc/xive/spapr: correct bitmap allocation size
vdpa/mlx5: Initialize CVQ vringh only once
vduse: Tie vduse mgmtdev and its device
virtio_mmio: Add missing PM calls to freeze/restore
virtio_mmio: Restore guest page size on resume
netfilter: br_netfilter: do not skip all hooks with 0 priority
scsi: hisi_sas: Limit max hw sectors for v3 HW
cpufreq: pmac32-cpufreq: Fix refcount leak bug
platform/x86: hp-wmi: Ignore Sanitization Mode event
firmware: sysfb: Make sysfb_create_simplefb() return a pdev pointer
firmware: sysfb: Add sysfb_disable() helper function
fbdev: Disable sysfb device registration when removing conflicting FBs
net: tipc: fix possible refcount leak in tipc_sk_create()
NFC: nxp-nci: don't print header length mismatch on i2c error
nvme-tcp: always fail a request when sending it failed
nvme: fix regression when disconnect a recovering ctrl
net: sfp: fix memory leak in sfp_probe()
ASoC: ops: Fix off by one in range control validation
pinctrl: aspeed: Fix potential NULL dereference in aspeed_pinmux_set_mux()
ASoC: Realtek/Maxim SoundWire codecs: disable pm_runtime on remove
ASoC: rt711-sdca-sdw: fix calibrate mutex initialization
ASoC: Intel: sof_sdw: handle errors on card registration
ASoC: rt711: fix calibrate mutex initialization
ASoC: rt7*-sdw: harden jack_detect_handler
ASoC: codecs: rt700/rt711/rt711-sdca: initialize workqueues in probe
ASoC: SOF: Intel: hda-loader: Clarify the cl_dsp_init() flow
ASoC: wcd938x: Fix event generation for some controls
ASoC: Intel: bytcr_wm5102: Fix GPIO related probe-ordering problem
ASoC: wm5110: Fix DRE control
ASoC: rt711-sdca: fix kernel NULL pointer dereference when IO error
ASoC: dapm: Initialise kcontrol data for mux/demux controls
ASoC: cs47l15: Fix event generation for low power mux control
ASoC: madera: Fix event generation for OUT1 demux
ASoC: madera: Fix event generation for rate controls
irqchip: or1k-pic: Undefine mask_ack for level triggered hardware
x86: Clear .brk area at early boot
soc: ixp4xx/npe: Fix unused match warning
ARM: dts: stm32: use the correct clock source for CEC on stm32mp151
Revert "can: xilinx_can: Limit CANFD brp to 2"
ALSA: usb-audio: Add quirks for MacroSilicon MS2100/MS2106 devices
ALSA: usb-audio: Add quirk for Fiero SC-01
ALSA: usb-audio: Add quirk for Fiero SC-01 (fw v1.0.0)
nvme-pci: phison e16 has bogus namespace ids
signal handling: don't use BUG_ON() for debugging
USB: serial: ftdi_sio: add Belimo device ids
usb: typec: add missing uevent when partner support PD
usb: dwc3: gadget: Fix event pending check
tty: serial: samsung_tty: set dma burst_size to 1
vt: fix memory overlapping when deleting chars in the buffer
serial: 8250: fix return error code in serial8250_request_std_resource()
serial: stm32: Clear prev values before setting RTS delays
serial: pl011: UPSTAT_AUTORTS requires .throttle/unthrottle
serial: 8250: Fix PM usage_count for console handover
x86/pat: Fix x86_has_pat_wp()
drm/aperture: Run fbdev removal before internal helpers
Linux 5.15.56
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I763d2a7b49435bf2996b31e201aa9794ab64609e
|
||
Muchun Song
|
a06248fa62 |
mm: sysctl: fix missing numa_stat when !CONFIG_HUGETLB_PAGE
[ Upstream commit 43b5240ca6b33108998810593248186b1e3ae34a ]
"numa_stat" should not be included in the scope of CONFIG_HUGETLB_PAGE, if
CONFIG_HUGETLB_PAGE is not configured even if CONFIG_NUMA is configured,
"numa_stat" is missed form /proc. Move it out of CONFIG_HUGETLB_PAGE to
fix it.
Fixes:
|
||
Kuniyuki Iwashima
|
a716a3846c |
sysctl: Fix data-races in proc_dointvec_ms_jiffies().
[ Upstream commit 7d1025e559782b58824b36cb8ad547a69f2e4b31 ]
A sysctl variable is accessed concurrently, and there is always a chance
of data-race. So, all readers and writers need some basic protection to
avoid load/store-tearing.
This patch changes proc_dointvec_ms_jiffies() to use READ_ONCE() and
WRITE_ONCE() internally to fix data-races on the sysctl side. For now,
proc_dointvec_ms_jiffies() itself is tolerant to a data-race, but we still
need to add annotations on the other subsystem's side.
Fixes:
|
||
|
Kuniyuki Iwashima
|
e58b02e445 |
sysctl: Fix data-races in proc_dou8vec_minmax().
[ Upstream commit 7dee5d7747a69aa2be41f04c6a7ecfe3ac8cdf18 ]
A sysctl variable is accessed concurrently, and there is always a chance
of data-race. So, all readers and writers need some basic protection to
avoid load/store-tearing.
This patch changes proc_dou8vec_minmax() to use READ_ONCE() and
WRITE_ONCE() internally to fix data-races on the sysctl side. For now,
proc_dou8vec_minmax() itself is tolerant to a data-race, but we still
need to add annotations on the other subsystem's side.
Fixes:
|
||
|
Kuniyuki Iwashima
|
67623d290d |
sysctl: Fix data races in proc_dointvec_jiffies().
[ Upstream commit e877820877663fbae8cb9582ea597a7230b94df3 ]
A sysctl variable is accessed concurrently, and there is always a chance
of data-race. So, all readers and writers need some basic protection to
avoid load/store-tearing.
This patch changes proc_dointvec_jiffies() to use READ_ONCE() and
WRITE_ONCE() internally to fix data-races on the sysctl side. For now,
proc_dointvec_jiffies() itself is tolerant to a data-race, but we still
need to add annotations on the other subsystem's side.
Fixes:
|
||
|
Kuniyuki Iwashima
|
dcdf3c3c58 |
sysctl: Fix data races in proc_doulongvec_minmax().
[ Upstream commit c31bcc8fb89fc2812663900589c6325ba35d9a65 ]
A sysctl variable is accessed concurrently, and there is always a chance
of data-race. So, all readers and writers need some basic protection to
avoid load/store-tearing.
This patch changes proc_doulongvec_minmax() to use READ_ONCE() and
WRITE_ONCE() internally to fix data-races on the sysctl side. For now,
proc_doulongvec_minmax() itself is tolerant to a data-race, but we still
need to add annotations on the other subsystem's side.
Fixes:
|
||
|
Kuniyuki Iwashima
|
40e0477a73 |
sysctl: Fix data races in proc_douintvec_minmax().
[ Upstream commit 2d3b559df3ed39258737789aae2ae7973d205bc1 ]
A sysctl variable is accessed concurrently, and there is always a chance
of data-race. So, all readers and writers need some basic protection to
avoid load/store-tearing.
This patch changes proc_douintvec_minmax() to use READ_ONCE() and
WRITE_ONCE() internally to fix data-races on the sysctl side. For now,
proc_douintvec_minmax() itself is tolerant to a data-race, but we still
need to add annotations on the other subsystem's side.
Fixes:
|
||
|
Kuniyuki Iwashima
|
32d7f8da82 |
sysctl: Fix data races in proc_dointvec_minmax().
[ Upstream commit f613d86d014b6375a4085901de39406598121e35 ]
A sysctl variable is accessed concurrently, and there is always a chance
of data-race. So, all readers and writers need some basic protection to
avoid load/store-tearing.
This patch changes proc_dointvec_minmax() to use READ_ONCE() and
WRITE_ONCE() internally to fix data-races on the sysctl side. For now,
proc_dointvec_minmax() itself is tolerant to a data-race, but we still
need to add annotations on the other subsystem's side.
Fixes:
|
||
|
Kuniyuki Iwashima
|
d335db59f7 |
sysctl: Fix data races in proc_douintvec().
[ Upstream commit 4762b532ec9539755aab61445d5da6e1926ccb99 ]
A sysctl variable is accessed concurrently, and there is always a chance
of data-race. So, all readers and writers need some basic protection to
avoid load/store-tearing.
This patch changes proc_douintvec() to use READ_ONCE() and WRITE_ONCE()
internally to fix data-races on the sysctl side. For now, proc_douintvec()
itself is tolerant to a data-race, but we still need to add annotations on
the other subsystem's side.
Fixes:
|
||
|
Kuniyuki Iwashima
|
279bf2a909 |
sysctl: Fix data races in proc_dointvec().
[ Upstream commit 1f1be04b4d48a2475ea1aab46a99221bfc5c0968 ]
A sysctl variable is accessed concurrently, and there is always a chance
of data-race. So, all readers and writers need some basic protection to
avoid load/store-tearing.
This patch changes proc_dointvec() to use READ_ONCE() and WRITE_ONCE()
internally to fix data-races on the sysctl side. For now, proc_dointvec()
itself is tolerant to a data-race, but we still need to add annotations on
the other subsystem's side.
Fixes:
|
||
|
Greg Kroah-Hartman
|
8f997c3ab5 |
Merge 5.15.28 into android13-5.15
Changes in 5.15.28 slip: fix macro redefine warning x86,bugs: Unconditionally allow spectre_v2=retpoline,amd x86/speculation: Rename RETPOLINE_AMD to RETPOLINE_LFENCE x86/speculation: Add eIBRS + Retpoline options Documentation/hw-vuln: Update spectre doc x86/speculation: Include unprivileged eBPF status in Spectre v2 mitigation reporting x86/speculation: Use generic retpoline by default on AMD x86/speculation: Update link to AMD speculation whitepaper x86/speculation: Warn about Spectre v2 LFENCE mitigation x86/speculation: Warn about eIBRS + LFENCE + Unprivileged eBPF + SMT ARM: report Spectre v2 status through sysfs ARM: early traps initialisation ARM: use LOADADDR() to get load address of sections ARM: Spectre-BHB workaround ARM: include unprivileged BPF status in Spectre V2 reporting arm64: Add Neoverse-N2, Cortex-A710 CPU part definition arm64: Add HWCAP for self-synchronising virtual counter arm64: Add Cortex-X2 CPU part definition arm64: add ID_AA64ISAR2_EL1 sys register arm64: cpufeature: add HWCAP for FEAT_AFP arm64: cpufeature: add HWCAP for FEAT_RPRES arm64: entry.S: Add ventry overflow sanity checks arm64: spectre: Rename spectre_v4_patch_fw_mitigation_conduit KVM: arm64: Allow indirect vectors to be used without SPECTRE_V3A arm64: entry: Make the trampoline cleanup optional arm64: entry: Free up another register on kpti's tramp_exit path arm64: entry: Move the trampoline data page before the text page arm64: entry: Allow tramp_alias to access symbols after the 4K boundary arm64: entry: Don't assume tramp_vectors is the start of the vectors arm64: entry: Move trampoline macros out of ifdef'd section arm64: entry: Make the kpti trampoline's kpti sequence optional arm64: entry: Allow the trampoline text to occupy multiple pages arm64: entry: Add non-kpti __bp_harden_el1_vectors for mitigations arm64: entry: Add vectors that have the bhb mitigation sequences arm64: entry: Add macro for reading symbol addresses from the trampoline arm64: Add percpu vectors for EL1 arm64: proton-pack: Report Spectre-BHB vulnerabilities as part of Spectre-v2 arm64: Mitigate spectre style branch history side channels KVM: arm64: Allow SMCCC_ARCH_WORKAROUND_3 to be discovered and migrated arm64: Use the clearbhb instruction in mitigations arm64: proton-pack: Include unprivileged eBPF status in Spectre v2 mitigation reporting ARM: fix build error when BPF_SYSCALL is disabled ARM: fix co-processor register typo ARM: Do not use NOCROSSREFS directive with ld.lld arm64: Do not include __READ_ONCE() block in assembly files ARM: fix build warning in proc-v7-bugs.c xen/xenbus: don't let xenbus_grant_ring() remove grants in error case xen/grant-table: add gnttab_try_end_foreign_access() xen/blkfront: don't use gnttab_query_foreign_access() for mapped status xen/netfront: don't use gnttab_query_foreign_access() for mapped status xen/scsifront: don't use gnttab_query_foreign_access() for mapped status xen/gntalloc: don't use gnttab_query_foreign_access() xen: remove gnttab_query_foreign_access() xen/9p: use alloc/free_pages_exact() xen/pvcalls: use alloc/free_pages_exact() xen/gnttab: fix gnttab_end_foreign_access() without page specified xen/netfront: react properly to failing gnttab_end_foreign_access_ref() Revert "ACPI: PM: s2idle: Cancel wakeup before dispatching EC GPE" Linux 5.15.28 Signed-off-by: Greg Kroah-Hartman <gregkh@google.com> Change-Id: I6d6fcf4f171c097168e17ecff30e1c510cf69fe8 |
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Josh Poimboeuf
|
316e4a1652 |
x86/speculation: Include unprivileged eBPF status in Spectre v2 mitigation reporting
commit 44a3918c8245ab10c6c9719dd12e7a8d291980d8 upstream. With unprivileged eBPF enabled, eIBRS (without retpoline) is vulnerable to Spectre v2 BHB-based attacks. When both are enabled, print a warning message and report it in the 'spectre_v2' sysfs vulnerabilities file. Signed-off-by: Josh Poimboeuf <jpoimboe@redhat.com> Signed-off-by: Borislav Petkov <bp@suse.de> Reviewed-by: Thomas Gleixner <tglx@linutronix.de> [fllinden@amazon.com: backported to 5.15] Signed-off-by: Frank van der Linden <fllinden@amazon.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
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Suren Baghdasaryan
|
1d50adbe5a |
ANDROID: Fix "one_thousand" defined but not used warning
Fix the following warning issued when CONFIG_PERF_EVENTS is not
defined:
kernel/sysctl.c:124:12: error: ‘one_thousand’ defined but not used [-Werror=unused-variable]
These definitions in upstream has been changed [1] and therefore
the issue does not exist there.
[1] https://lore.kernel.org/all/20211124220801.ip01WsWPQ%25akpm@linux-foundation.org/
Fixes:
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Suren Baghdasaryan
|
0f047989b0 |
FROMGIT: mm/pagealloc: sysctl: change watermark_scale_factor max limit to 30%
For embedded systems with low total memory, having to run applications with relatively large memory requirements, 10% max limitation for watermark_scale_factor poses an issue of triggering direct reclaim every time such application is started. This results in slow application startup times and bad end-user experience. By increasing watermark_scale_factor max limit we allow vendors more flexibility to choose the right level of kswapd aggressiveness for their device and workload requirements. Link: https://lkml.kernel.org/r/20211124193604.2758863-1-surenb@google.com Signed-off-by: Suren Baghdasaryan <surenb@google.com> Acked-by: Johannes Weiner <hannes@cmpxchg.org> Cc: Michal Hocko <mhocko@suse.com> Cc: Lukas Middendorf <kernel@tuxforce.de> Cc: Antti Palosaari <crope@iki.fi> Cc: Mauro Carvalho Chehab <mchehab@kernel.org> Cc: Luis Chamberlain <mcgrof@kernel.org> Cc: Kees Cook <keescook@chromium.org> Cc: Iurii Zaikin <yzaikin@google.com> Cc: Dave Hansen <dave.hansen@linux.intel.com> Cc: Vlastimil Babka <vbabka@suse.cz> Cc: Mel Gorman <mgorman@techsingularity.net> Cc: Jonathan Corbet <corbet@lwn.net> Cc: Zhang Yi <yi.zhang@huawei.com> Cc: Fengfei Xi <xi.fengfei@h3c.com> Cc: Mike Rapoport <rppt@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 4e36dc369cc7581ac19a7523303e682a53e52e59 git://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master) Bug: 194652782 Signed-off-by: Suren Baghdasaryan <surenb@google.com> Change-Id: I3e926c8b222933a10c79068d22a1407ff3181824 |
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Vincent Donnefort
|
889f8be857 |
ANDROID: sched: Introducing PELT multiplier
The new sysctl sched_pelt_multiplier allows a user to set a clock multiplier x2 or x4 (x1 being the default). This clock multiplier artificially speed-up PELT ramp up/down similarly to a faster half-life. Indeed, if we write PELT as a first order filter: y(t) = G * (1 - exp(t/tau)) Then we can see that multiplying the time by a constant X, is the same as dividing the time constant tau by X. y(t) = G * (1 - exp((t*X)/tau)) y(t) = G * (1 - exp(t/(tau/X))) Tau being half-life*ln(2), multiplying the PELT time is the same as dividing the half-life: - x1: 32ms half-life - x2: 16ms half-life - x4: 8ms half-life Internally, a new clock is created: rq->clock_task_mult. It sits in the clock hierarchy between rq->clock_task and rq->clock_pelt. Bug: 177593580 Change-Id: I67e6ca7994bebea22bf75732ee11d2b10e0d6b7e Suggested-by: Morten Rasmussen <morten.rasmussen@arm.com> Signed-off-by: Vincent Donnefort <vincent.donnefort@arm.com> |
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Linus Torvalds
|
14726903c8 |
Merge branch 'akpm' (patches from Andrew)
Merge misc updates from Andrew Morton: "173 patches. Subsystems affected by this series: ia64, ocfs2, block, and mm (debug, pagecache, gup, swap, shmem, memcg, selftests, pagemap, mremap, bootmem, sparsemem, vmalloc, kasan, pagealloc, memory-failure, hugetlb, userfaultfd, vmscan, compaction, mempolicy, memblock, oom-kill, migration, ksm, percpu, vmstat, and madvise)" * emailed patches from Andrew Morton <akpm@linux-foundation.org>: (173 commits) mm/madvise: add MADV_WILLNEED to process_madvise() mm/vmstat: remove unneeded return value mm/vmstat: simplify the array size calculation mm/vmstat: correct some wrong comments mm/percpu,c: remove obsolete comments of pcpu_chunk_populated() selftests: vm: add COW time test for KSM pages selftests: vm: add KSM merging time test mm: KSM: fix data type selftests: vm: add KSM merging across nodes test selftests: vm: add KSM zero page merging test selftests: vm: add KSM unmerge test selftests: vm: add KSM merge test mm/migrate: correct kernel-doc notation mm: wire up syscall process_mrelease mm: introduce process_mrelease system call memblock: make memblock_find_in_range method private mm/mempolicy.c: use in_task() in mempolicy_slab_node() mm/mempolicy: unify the create() func for bind/interleave/prefer-many policies mm/mempolicy: advertise new MPOL_PREFERRED_MANY mm/hugetlb: add support for mempolicy MPOL_PREFERRED_MANY ... |
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Charan Teja Reddy
|
65d759c8f9 |
mm: compaction: support triggering of proactive compaction by user
The proactive compaction[1] gets triggered for every 500msec and run compaction on the node for COMPACTION_HPAGE_ORDER (usually order-9) pages based on the value set to sysctl.compaction_proactiveness. Triggering the compaction for every 500msec in search of COMPACTION_HPAGE_ORDER pages is not needed for all applications, especially on the embedded system usecases which may have few MB's of RAM. Enabling the proactive compaction in its state will endup in running almost always on such systems. Other side, proactive compaction can still be very much useful for getting a set of higher order pages in some controllable manner(controlled by using the sysctl.compaction_proactiveness). So, on systems where enabling the proactive compaction always may proove not required, can trigger the same from user space on write to its sysctl interface. As an example, say app launcher decide to launch the memory heavy application which can be launched fast if it gets more higher order pages thus launcher can prepare the system in advance by triggering the proactive compaction from userspace. This triggering of proactive compaction is done on a write to sysctl.compaction_proactiveness by user. [1]https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit?id=facdaa917c4d5a376d09d25865f5a863f906234a [akpm@linux-foundation.org: tweak vm.rst, per Mike] Link: https://lkml.kernel.org/r/1627653207-12317-1-git-send-email-charante@codeaurora.org Signed-off-by: Charan Teja Reddy <charante@codeaurora.org> Acked-by: Vlastimil Babka <vbabka@suse.cz> Acked-by: Rafael Aquini <aquini@redhat.com> Cc: Mike Rapoport <rppt@kernel.org> Cc: Luis Chamberlain <mcgrof@kernel.org> Cc: Kees Cook <keescook@chromium.org> Cc: Iurii Zaikin <yzaikin@google.com> Cc: Dave Hansen <dave.hansen@linux.intel.com> Cc: Mel Gorman <mgorman@techsingularity.net> Cc: Nitin Gupta <nigupta@nvidia.com> Cc: Jonathan Corbet <corbet@lwn.net> Cc: Khalid Aziz <khalid.aziz@oracle.com> Cc: David Rientjes <rientjes@google.com> Cc: Vinayak Menon <vinmenon@codeaurora.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Jia He
|
a2071573d6 |
sysctl: introduce new proc handler proc_dobool
This is to let bool variable could be correctly displayed in big/little endian sysctl procfs. sizeof(bool) is arch dependent, proc_dobool should work in all arches. Suggested-by: Pan Xinhui <xinhui@linux.vnet.ibm.com> Signed-off-by: Jia He <hejianet@gmail.com> [thuth: rebased the patch to the current kernel version] Signed-off-by: Thomas Huth <thuth@redhat.com> Signed-off-by: Chuck Lever <chuck.lever@oracle.com> |
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Linus Torvalds
|
71bd934101 |
Merge branch 'akpm' (patches from Andrew)
Merge more updates from Andrew Morton: "190 patches. Subsystems affected by this patch series: mm (hugetlb, userfaultfd, vmscan, kconfig, proc, z3fold, zbud, ras, mempolicy, memblock, migration, thp, nommu, kconfig, madvise, memory-hotplug, zswap, zsmalloc, zram, cleanups, kfence, and hmm), procfs, sysctl, misc, core-kernel, lib, lz4, checkpatch, init, kprobes, nilfs2, hfs, signals, exec, kcov, selftests, compress/decompress, and ipc" * emailed patches from Andrew Morton <akpm@linux-foundation.org>: (190 commits) ipc/util.c: use binary search for max_idx ipc/sem.c: use READ_ONCE()/WRITE_ONCE() for use_global_lock ipc: use kmalloc for msg_queue and shmid_kernel ipc sem: use kvmalloc for sem_undo allocation lib/decompressors: remove set but not used variabled 'level' selftests/vm/pkeys: exercise x86 XSAVE init state selftests/vm/pkeys: refill shadow register after implicit kernel write selftests/vm/pkeys: handle negative sys_pkey_alloc() return code selftests/vm/pkeys: fix alloc_random_pkey() to make it really, really random kcov: add __no_sanitize_coverage to fix noinstr for all architectures exec: remove checks in __register_bimfmt() x86: signal: don't do sas_ss_reset() until we are certain that sigframe won't be abandoned hfsplus: report create_date to kstat.btime hfsplus: remove unnecessary oom message nilfs2: remove redundant continue statement in a while-loop kprobes: remove duplicated strong free_insn_page in x86 and s390 init: print out unknown kernel parameters checkpatch: do not complain about positive return values starting with EPOLL checkpatch: improve the indented label test checkpatch: scripts/spdxcheck.py now requires python3 ... |
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Andy Shevchenko
|
f39650de68 |
kernel.h: split out panic and oops helpers
kernel.h is being used as a dump for all kinds of stuff for a long time. Here is the attempt to start cleaning it up by splitting out panic and oops helpers. There are several purposes of doing this: - dropping dependency in bug.h - dropping a loop by moving out panic_notifier.h - unload kernel.h from something which has its own domain At the same time convert users tree-wide to use new headers, although for the time being include new header back to kernel.h to avoid twisted indirected includes for existing users. [akpm@linux-foundation.org: thread_info.h needs limits.h] [andriy.shevchenko@linux.intel.com: ia64 fix] Link: https://lkml.kernel.org/r/20210520130557.55277-1-andriy.shevchenko@linux.intel.com Link: https://lkml.kernel.org/r/20210511074137.33666-1-andriy.shevchenko@linux.intel.com Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org> Co-developed-by: Andrew Morton <akpm@linux-foundation.org> Acked-by: Mike Rapoport <rppt@linux.ibm.com> Acked-by: Corey Minyard <cminyard@mvista.com> Acked-by: Christian Brauner <christian.brauner@ubuntu.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Kees Cook <keescook@chromium.org> Acked-by: Wei Liu <wei.liu@kernel.org> Acked-by: Rasmus Villemoes <linux@rasmusvillemoes.dk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Acked-by: Sebastian Reichel <sre@kernel.org> Acked-by: Luis Chamberlain <mcgrof@kernel.org> Acked-by: Stephen Boyd <sboyd@kernel.org> Acked-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de> Acked-by: Helge Deller <deller@gmx.de> # parisc Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Jiapeng Chong
|
9a52c5f3c8 |
sysctl: remove redundant assignment to first
Variable first is set to '0', but this value is never read as it is not used later on, hence it is a redundant assignment and can be removed. Clean up the following clang-analyzer warning: kernel/sysctl.c:1562:4: warning: Value stored to 'first' is never read [clang-analyzer-deadcode.DeadStores]. Link: https://lkml.kernel.org/r/1620469990-22182-1-git-send-email-jiapeng.chong@linux.alibaba.com Signed-off-by: Jiapeng Chong <jiapeng.chong@linux.alibaba.com> Reported-by: Abaci Robot <abaci@linux.alibaba.com> Acked-by: Luis Chamberlain <mcgrof@kernel.org> Cc: Kees Cook <keescook@chromium.org> Cc: Iurii Zaikin <yzaikin@google.com> Cc: Alexei Starovoitov <ast@kernel.org> Cc: Daniel Borkmann <daniel@iogearbox.net> Cc: Andrii Nakryiko <andrii@kernel.org> Cc: Martin KaFai Lau <kafai@fb.com> Cc: Song Liu <songliubraving@fb.com> Cc: Yonghong Song <yhs@fb.com> Cc: John Fastabend <john.fastabend@gmail.com> Cc: KP Singh <kpsingh@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Linus Torvalds
|
df668a5fe4 |
Merge tag 'for-5.14/block-2021-06-29' of git://git.kernel.dk/linux-block
Pull core block updates from Jens Axboe: - disk events cleanup (Christoph) - gendisk and request queue allocation simplifications (Christoph) - bdev_disk_changed cleanups (Christoph) - IO priority improvements (Bart) - Chained bio completion trace fix (Edward) - blk-wbt fixes (Jan) - blk-wbt enable/disable fix (Zhang) - Scheduler dispatch improvements (Jan, Ming) - Shared tagset scheduler improvements (John) - BFQ updates (Paolo, Luca, Pietro) - BFQ lock inversion fix (Jan) - Documentation improvements (Kir) - CLONE_IO block cgroup fix (Tejun) - Remove of ancient and deprecated block dump feature (zhangyi) - Discard merge fix (Ming) - Misc fixes or followup fixes (Colin, Damien, Dan, Long, Max, Thomas, Yang) * tag 'for-5.14/block-2021-06-29' of git://git.kernel.dk/linux-block: (129 commits) block: fix discard request merge block/mq-deadline: Remove a WARN_ON_ONCE() call blk-mq: update hctx->dispatch_busy in case of real scheduler blk: Fix lock inversion between ioc lock and bfqd lock bfq: Remove merged request already in bfq_requests_merged() block: pass a gendisk to bdev_disk_changed block: move bdev_disk_changed block: add the events* attributes to disk_attrs block: move the disk events code to a separate file block: fix trace completion for chained bio block/partitions/msdos: Fix typo inidicator -> indicator block, bfq: reset waker pointer with shared queues block, bfq: check waker only for queues with no in-flight I/O block, bfq: avoid delayed merge of async queues block, bfq: boost throughput by extending queue-merging times block, bfq: consider also creation time in delayed stable merge block, bfq: fix delayed stable merge check block, bfq: let also stably merged queues enjoy weight raising blk-wbt: make sure throttle is enabled properly blk-wbt: introduce a new disable state to prevent false positive by rwb_enabled() ... |
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Linus Torvalds
|
65090f30ab |
Merge branch 'akpm' (patches from Andrew)
Merge misc updates from Andrew Morton: "191 patches. Subsystems affected by this patch series: kthread, ia64, scripts, ntfs, squashfs, ocfs2, kernel/watchdog, and mm (gup, pagealloc, slab, slub, kmemleak, dax, debug, pagecache, gup, swap, memcg, pagemap, mprotect, bootmem, dma, tracing, vmalloc, kasan, initialization, pagealloc, and memory-failure)" * emailed patches from Andrew Morton <akpm@linux-foundation.org>: (191 commits) mm,hwpoison: make get_hwpoison_page() call get_any_page() mm,hwpoison: send SIGBUS with error virutal address mm/page_alloc: split pcp->high across all online CPUs for cpuless nodes mm/page_alloc: allow high-order pages to be stored on the per-cpu lists mm: replace CONFIG_FLAT_NODE_MEM_MAP with CONFIG_FLATMEM mm: replace CONFIG_NEED_MULTIPLE_NODES with CONFIG_NUMA docs: remove description of DISCONTIGMEM arch, mm: remove stale mentions of DISCONIGMEM mm: remove CONFIG_DISCONTIGMEM m68k: remove support for DISCONTIGMEM arc: remove support for DISCONTIGMEM arc: update comment about HIGHMEM implementation alpha: remove DISCONTIGMEM and NUMA mm/page_alloc: move free_the_page mm/page_alloc: fix counting of managed_pages mm/page_alloc: improve memmap_pages dbg msg mm: drop SECTION_SHIFT in code comments mm/page_alloc: introduce vm.percpu_pagelist_high_fraction mm/page_alloc: limit the number of pages on PCP lists when reclaim is active mm/page_alloc: scale the number of pages that are batch freed ... |
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Mel Gorman
|
74f4482209 |
mm/page_alloc: introduce vm.percpu_pagelist_high_fraction
This introduces a new sysctl vm.percpu_pagelist_high_fraction. It is
similar to the old vm.percpu_pagelist_fraction. The old sysctl increased
both pcp->batch and pcp->high with the higher pcp->high potentially
reducing zone->lock contention. However, the higher pcp->batch value also
potentially increased allocation latency while the PCP was refilled. This
sysctl only adjusts pcp->high so that zone->lock contention is potentially
reduced but allocation latency during a PCP refill remains the same.
# grep -E "high:|batch" /proc/zoneinfo | tail -2
high: 649
batch: 63
# sysctl vm.percpu_pagelist_high_fraction=8
# grep -E "high:|batch" /proc/zoneinfo | tail -2
high: 35071
batch: 63
# sysctl vm.percpu_pagelist_high_fraction=64
high: 4383
batch: 63
# sysctl vm.percpu_pagelist_high_fraction=0
high: 649
batch: 63
[mgorman@techsingularity.net: fix documentation]
Link: https://lkml.kernel.org/r/20210528151010.GQ30378@techsingularity.net
Link: https://lkml.kernel.org/r/20210525080119.5455-7-mgorman@techsingularity.net
Signed-off-by: Mel Gorman <mgorman@techsingularity.net>
Acked-by: Dave Hansen <dave.hansen@linux.intel.com>
Acked-by: Vlastimil Babka <vbabka@suse.cz>
Cc: Hillf Danton <hdanton@sina.com>
Cc: Michal Hocko <mhocko@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Mel Gorman
|
bbbecb35a4 |
mm/page_alloc: delete vm.percpu_pagelist_fraction
Patch series "Calculate pcp->high based on zone sizes and active CPUs", v2. The per-cpu page allocator (PCP) is meant to reduce contention on the zone lock but the sizing of batch and high is archaic and neither takes the zone size into account or the number of CPUs local to a zone. With larger zones and more CPUs per node, the contention is getting worse. Furthermore, the fact that vm.percpu_pagelist_fraction adjusts both batch and high values means that the sysctl can reduce zone lock contention but also increase allocation latencies. This series disassociates pcp->high from pcp->batch and then scales pcp->high based on the size of the local zone with limited impact to reclaim and accounting for active CPUs but leaves pcp->batch static. It also adapts the number of pages that can be on the pcp list based on recent freeing patterns. The motivation is partially to adjust to larger memory sizes but is also driven by the fact that large batches of page freeing via release_pages() often shows zone contention as a major part of the problem. Another is a bug report based on an older kernel where a multi-terabyte process can takes several minutes to exit. A workaround was to use vm.percpu_pagelist_fraction to increase the pcp->high value but testing indicated that a production workload could not use the same values because of an increase in allocation latencies. Unfortunately, I cannot reproduce this test case myself as the multi-terabyte machines are in active use but it should alleviate the problem. The series aims to address both and partially acts as a pre-requisite. pcp only works with order-0 which is useless for SLUB (when using high orders) and THP (unconditionally). To store high-order pages on PCP, the pcp->high values need to be increased first. This patch (of 6): The vm.percpu_pagelist_fraction is used to increase the batch and high limits for the per-cpu page allocator (PCP). The intent behind the sysctl is to reduce zone lock acquisition when allocating/freeing pages but it has a problem. While it can decrease contention, it can also increase latency on the allocation side due to unreasonably large batch sizes. This leads to games where an administrator adjusts percpu_pagelist_fraction on the fly to work around contention and allocation latency problems. This series aims to alleviate the problems with zone lock contention while avoiding the allocation-side latency problems. For the purposes of review, it's easier to remove this sysctl now and reintroduce a similar sysctl later in the series that deals only with pcp->high. Link: https://lkml.kernel.org/r/20210525080119.5455-1-mgorman@techsingularity.net Link: https://lkml.kernel.org/r/20210525080119.5455-2-mgorman@techsingularity.net Signed-off-by: Mel Gorman <mgorman@techsingularity.net> Acked-by: Dave Hansen <dave.hansen@linux.intel.com> Acked-by: Vlastimil Babka <vbabka@suse.cz> Cc: Hillf Danton <hdanton@sina.com> Cc: Michal Hocko <mhocko@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Ingo Molnar
|
a9e906b71f |
Merge branch 'sched/urgent' into sched/core, to pick up fixes
Signed-off-by: Ingo Molnar <mingo@kernel.org> |
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zhangyi (F)
|
3af3d772f7 |
block_dump: remove block_dump feature
We have already delete block_dump feature in mark_inode_dirty() because it can be replaced by tracepoints, now we also remove the part in submit_bio() for the same reason. The part of block dump feature in submit_bio() dump the write process, write region and sectors on the target disk into kernel message. it can be replaced by block_bio_queue tracepoint in submit_bio_checks(), so we do not need block_dump anymore, remove the whole block_dump feature. Signed-off-by: zhangyi (F) <yi.zhang@huawei.com> Reviewed-by: Jan Kara <jack@suse.cz> Reviewed-by: Christoph Hellwig <hch@lst.de> Link: https://lore.kernel.org/r/20210313030146.2882027-3-yi.zhang@huawei.com Signed-off-by: Jens Axboe <axboe@kernel.dk> |
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Peter Zijlstra
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0cd7c741f0 |
delayacct: Add sysctl to enable at runtime
Just like sched_schedstats, allow runtime enabling (and disabling) of delayacct. This is useful if one forgot to add the delayacct boot time option. Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Link: https://lkml.kernel.org/r/YJkhebGJAywaZowX@hirez.programming.kicks-ass.net |
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David S. Miller
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df6f823703 |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf
Daniel Borkmann says:
====================
pull-request: bpf 2021-05-11
The following pull-request contains BPF updates for your *net* tree.
We've added 13 non-merge commits during the last 8 day(s) which contain
a total of 21 files changed, 817 insertions(+), 382 deletions(-).
The main changes are:
1) Fix multiple ringbuf bugs in particular to prevent writable mmap of
read-only pages, from Andrii Nakryiko & Thadeu Lima de Souza Cascardo.
2) Fix verifier alu32 known-const subregister bound tracking for bitwise
operations and/or/xor, from Daniel Borkmann.
3) Reject trampoline attachment for functions with variable arguments,
and also add a deny list of other forbidden functions, from Jiri Olsa.
4) Fix nested bpf_bprintf_prepare() calls used by various helpers by
switching to per-CPU buffers, from Florent Revest.
5) Fix kernel compilation with BTF debug info on ppc64 due to pahole
missing TCP-CC functions like cubictcp_init, from Martin KaFai Lau.
6) Add a kconfig entry to provide an option to disallow unprivileged
BPF by default, from Daniel Borkmann.
7) Fix libbpf compilation for older libelf when GELF_ST_VISIBILITY()
macro is not available, from Arnaldo Carvalho de Melo.
8) Migrate test_tc_redirect to test_progs framework as prep work
for upcoming skb_change_head() fix & selftest, from Jussi Maki.
9) Fix a libbpf segfault in add_dummy_ksym_var() if BTF is not
present, from Ian Rogers.
10) Fix tx_only micro-benchmark in xdpsock BPF sample with proper frame
size, from Magnus Karlsson.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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Daniel Borkmann
|
08389d8882 |
bpf: Add kconfig knob for disabling unpriv bpf by default
Add a kconfig knob which allows for unprivileged bpf to be disabled by default.
If set, the knob sets /proc/sys/kernel/unprivileged_bpf_disabled to value of 2.
This still allows a transition of 2 -> {0,1} through an admin. Similarly,
this also still keeps 1 -> {1} behavior intact, so that once set to permanently
disabled, it cannot be undone aside from a reboot.
We've also added extra2 with max of 2 for the procfs handler, so that an admin
still has a chance to toggle between 0 <-> 2.
Either way, as an additional alternative, applications can make use of CAP_BPF
that we added a while ago.
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/bpf/74ec548079189e4e4dffaeb42b8987bb3c852eee.1620765074.git.daniel@iogearbox.net
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Pintu Kumar
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ef49843841 |
mm/compaction: remove unused variable sysctl_compact_memory
The sysctl_compact_memory is mostly unused in mm/compaction.c It just acts as a place holder for sysctl to store .data. But the .data itself is not needed here. So we can get ride of this variable completely and make .data as NULL. This will also eliminate the extern declaration from header file. No functionality is broken or changed this way. Link: https://lkml.kernel.org/r/1614852224-14671-1-git-send-email-pintu@codeaurora.org Signed-off-by: Pintu Kumar <pintu@codeaurora.org> Signed-off-by: Pintu Agarwal <pintu.ping@gmail.com> Reviewed-by: Vlastimil Babka <vbabka@suse.cz> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Linus Torvalds
|
9d31d23389 |
Merge tag 'net-next-5.13' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next
Pull networking updates from Jakub Kicinski:
"Core:
- bpf:
- allow bpf programs calling kernel functions (initially to
reuse TCP congestion control implementations)
- enable task local storage for tracing programs - remove the
need to store per-task state in hash maps, and allow tracing
programs access to task local storage previously added for
BPF_LSM
- add bpf_for_each_map_elem() helper, allowing programs to walk
all map elements in a more robust and easier to verify fashion
- sockmap: support UDP and cross-protocol BPF_SK_SKB_VERDICT
redirection
- lpm: add support for batched ops in LPM trie
- add BTF_KIND_FLOAT support - mostly to allow use of BTF on
s390 which has floats in its headers files
- improve BPF syscall documentation and extend the use of kdoc
parsing scripts we already employ for bpf-helpers
- libbpf, bpftool: support static linking of BPF ELF files
- improve support for encapsulation of L2 packets
- xdp: restructure redirect actions to avoid a runtime lookup,
improving performance by 4-8% in microbenchmarks
- xsk: build skb by page (aka generic zerocopy xmit) - improve
performance of software AF_XDP path by 33% for devices which don't
need headers in the linear skb part (e.g. virtio)
- nexthop: resilient next-hop groups - improve path stability on
next-hops group changes (incl. offload for mlxsw)
- ipv6: segment routing: add support for IPv4 decapsulation
- icmp: add support for RFC 8335 extended PROBE messages
- inet: use bigger hash table for IP ID generation
- tcp: deal better with delayed TX completions - make sure we don't
give up on fast TCP retransmissions only because driver is slow in
reporting that it completed transmitting the original
- tcp: reorder tcp_congestion_ops for better cache locality
- mptcp:
- add sockopt support for common TCP options
- add support for common TCP msg flags
- include multiple address ids in RM_ADDR
- add reset option support for resetting one subflow
- udp: GRO L4 improvements - improve 'forward' / 'frag_list'
co-existence with UDP tunnel GRO, allowing the first to take place
correctly even for encapsulated UDP traffic
- micro-optimize dev_gro_receive() and flow dissection, avoid
retpoline overhead on VLAN and TEB GRO
- use less memory for sysctls, add a new sysctl type, to allow using
u8 instead of "int" and "long" and shrink networking sysctls
- veth: allow GRO without XDP - this allows aggregating UDP packets
before handing them off to routing, bridge, OvS, etc.
- allow specifing ifindex when device is moved to another namespace
- netfilter:
- nft_socket: add support for cgroupsv2
- nftables: add catch-all set element - special element used to
define a default action in case normal lookup missed
- use net_generic infra in many modules to avoid allocating
per-ns memory unnecessarily
- xps: improve the xps handling to avoid potential out-of-bound
accesses and use-after-free when XPS change race with other
re-configuration under traffic
- add a config knob to turn off per-cpu netdev refcnt to catch
underflows in testing
Device APIs:
- add WWAN subsystem to organize the WWAN interfaces better and
hopefully start driving towards more unified and vendor-
independent APIs
- ethtool:
- add interface for reading IEEE MIB stats (incl. mlx5 and bnxt
support)
- allow network drivers to dump arbitrary SFP EEPROM data,
current offset+length API was a poor fit for modern SFP which
define EEPROM in terms of pages (incl. mlx5 support)
- act_police, flow_offload: add support for packet-per-second
policing (incl. offload for nfp)
- psample: add additional metadata attributes like transit delay for
packets sampled from switch HW (and corresponding egress and
policy-based sampling in the mlxsw driver)
- dsa: improve support for sandwiched LAGs with bridge and DSA
- netfilter:
- flowtable: use direct xmit in topologies with IP forwarding,
bridging, vlans etc.
- nftables: counter hardware offload support
- Bluetooth:
- improvements for firmware download w/ Intel devices
- add support for reading AOSP vendor capabilities
- add support for virtio transport driver
- mac80211:
- allow concurrent monitor iface and ethernet rx decap
- set priority and queue mapping for injected frames
- phy: add support for Clause-45 PHY Loopback
- pci/iov: add sysfs MSI-X vector assignment interface to distribute
MSI-X resources to VFs (incl. mlx5 support)
New hardware/drivers:
- dsa: mv88e6xxx: add support for Marvell mv88e6393x - 11-port
Ethernet switch with 8x 1-Gigabit Ethernet and 3x 10-Gigabit
interfaces.
- dsa: support for legacy Broadcom tags used on BCM5325, BCM5365 and
BCM63xx switches
- Microchip KSZ8863 and KSZ8873; 3x 10/100Mbps Ethernet switches
- ath11k: support for QCN9074 a 802.11ax device
- Bluetooth: Broadcom BCM4330 and BMC4334
- phy: Marvell 88X2222 transceiver support
- mdio: add BCM6368 MDIO mux bus controller
- r8152: support RTL8153 and RTL8156 (USB Ethernet) chips
- mana: driver for Microsoft Azure Network Adapter (MANA)
- Actions Semi Owl Ethernet MAC
- can: driver for ETAS ES58X CAN/USB interfaces
Pure driver changes:
- add XDP support to: enetc, igc, stmmac
- add AF_XDP support to: stmmac
- virtio:
- page_to_skb() use build_skb when there's sufficient tailroom
(21% improvement for 1000B UDP frames)
- support XDP even without dedicated Tx queues - share the Tx
queues with the stack when necessary
- mlx5:
- flow rules: add support for mirroring with conntrack, matching
on ICMP, GTP, flex filters and more
- support packet sampling with flow offloads
- persist uplink representor netdev across eswitch mode changes
- allow coexistence of CQE compression and HW time-stamping
- add ethtool extended link error state reporting
- ice, iavf: support flow filters, UDP Segmentation Offload
- dpaa2-switch:
- move the driver out of staging
- add spanning tree (STP) support
- add rx copybreak support
- add tc flower hardware offload on ingress traffic
- ionic:
- implement Rx page reuse
- support HW PTP time-stamping
- octeon: support TC hardware offloads - flower matching on ingress
and egress ratelimitting.
- stmmac:
- add RX frame steering based on VLAN priority in tc flower
- support frame preemption (FPE)
- intel: add cross time-stamping freq difference adjustment
- ocelot:
- support forwarding of MRP frames in HW
- support multiple bridges
- support PTP Sync one-step timestamping
- dsa: mv88e6xxx, dpaa2-switch: offload bridge port flags like
learning, flooding etc.
- ipa: add IPA v4.5, v4.9 and v4.11 support (Qualcomm SDX55, SM8350,
SC7280 SoCs)
- mt7601u: enable TDLS support
- mt76:
- add support for 802.3 rx frames (mt7915/mt7615)
- mt7915 flash pre-calibration support
- mt7921/mt7663 runtime power management fixes"
* tag 'net-next-5.13' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (2451 commits)
net: selftest: fix build issue if INET is disabled
net: netrom: nr_in: Remove redundant assignment to ns
net: tun: Remove redundant assignment to ret
net: phy: marvell: add downshift support for M88E1240
net: dsa: ksz: Make reg_mib_cnt a u8 as it never exceeds 255
net/sched: act_ct: Remove redundant ct get and check
icmp: standardize naming of RFC 8335 PROBE constants
bpf, selftests: Update array map tests for per-cpu batched ops
bpf: Add batched ops support for percpu array
bpf: Implement formatted output helpers with bstr_printf
seq_file: Add a seq_bprintf function
sfc: adjust efx->xdp_tx_queue_count with the real number of initialized queues
net:nfc:digital: Fix a double free in digital_tg_recv_dep_req
net: fix a concurrency bug in l2tp_tunnel_register()
net/smc: Remove redundant assignment to rc
mpls: Remove redundant assignment to err
llc2: Remove redundant assignment to rc
net/tls: Remove redundant initialization of record
rds: Remove redundant assignment to nr_sig
dt-bindings: net: mdio-gpio: add compatible for microchip,mdio-smi0
...
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Linus Torvalds
|
3644286f6c |
Merge tag 'fsnotify_for_v5.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs
Pull fsnotify updates from Jan Kara:
- support for limited fanotify functionality for unpriviledged users
- faster merging of fanotify events
- a few smaller fsnotify improvements
* tag 'fsnotify_for_v5.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs:
shmem: allow reporting fanotify events with file handles on tmpfs
fs: introduce a wrapper uuid_to_fsid()
fanotify_user: use upper_32_bits() to verify mask
fanotify: support limited functionality for unprivileged users
fanotify: configurable limits via sysfs
fanotify: limit number of event merge attempts
fsnotify: use hash table for faster events merge
fanotify: mix event info and pid into merge key hash
fanotify: reduce event objectid to 29-bit hash
fsnotify: allow fsnotify_{peek,remove}_first_event with empty queue
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Peter Zijlstra
|
8a99b6833c |
sched: Move SCHED_DEBUG sysctl to debugfs
Stop polluting sysctl with undocumented knobs that really are debug only, move them all to /debug/sched/ along with the existing /debug/sched_* files that already exist. Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Tested-by: Valentin Schneider <valentin.schneider@arm.com> Link: https://lkml.kernel.org/r/20210412102001.287610138@infradead.org |
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Peter Zijlstra
|
1d1c2509de |
sched: Remove sched_schedstats sysctl out from under SCHED_DEBUG
CONFIG_SCHEDSTATS does not depend on SCHED_DEBUG, it is inconsistent to have the sysctl depend on it. Suggested-by: Mel Gorman <mgorman@suse.de> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Tested-by: Valentin Schneider <valentin.schneider@arm.com> Link: https://lkml.kernel.org/r/20210412102001.161151631@infradead.org |
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Mel Gorman
|
b7cc6ec744 |
sched/numa: Allow runtime enabling/disabling of NUMA balance without SCHED_DEBUG
The ability to enable/disable NUMA balancing is not a debugging feature and should not depend on CONFIG_SCHED_DEBUG. For example, machines within a HPC cluster may disable NUMA balancing temporarily for some jobs and re-enable it for other jobs without needing to reboot. This patch removes the dependency on CONFIG_SCHED_DEBUG for kernel.numa_balancing sysctl. The other numa balancing related sysctls are left as-is because if they need to be tuned then it is more likely that NUMA balancing needs to be fixed instead. Signed-off-by: Mel Gorman <mgorman@suse.de> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Tested-by: Valentin Schneider <valentin.schneider@arm.com> Link: https://lkml.kernel.org/r/20210324133916.GQ15768@suse.de |
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Eric Dumazet
|
cb94441306 |
sysctl: add proc_dou8vec_minmax()
Networking has many sysctls that could fit in one u8. This patch adds proc_dou8vec_minmax() for this purpose. Note that the .extra1 and .extra2 fields are pointing to integers, because it makes conversions easier. Signed-off-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net> |
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Amir Goldstein
|
5b8fea65d1 |
fanotify: configurable limits via sysfs
fanotify has some hardcoded limits. The only APIs to escape those limits are FAN_UNLIMITED_QUEUE and FAN_UNLIMITED_MARKS. Allow finer grained tuning of the system limits via sysfs tunables under /proc/sys/fs/fanotify, similar to tunables under /proc/sys/fs/inotify, with some minor differences. - max_queued_events - global system tunable for group queue size limit. Like the inotify tunable with the same name, it defaults to 16384 and applies on initialization of a new group. - max_user_marks - user ns tunable for marks limit per user. Like the inotify tunable named max_user_watches, on a machine with sufficient RAM and it defaults to 1048576 in init userns and can be further limited per containing user ns. - max_user_groups - user ns tunable for number of groups per user. Like the inotify tunable named max_user_instances, it defaults to 128 in init userns and can be further limited per containing user ns. The slightly different tunable names used for fanotify are derived from the "group" and "mark" terminology used in the fanotify man pages and throughout the code. Considering the fact that the default value for max_user_instances was increased in kernel v5.10 from 8192 to 1048576, leaving the legacy fanotify limit of 8192 marks per group in addition to the max_user_marks limit makes little sense, so the per group marks limit has been removed. Note that when a group is initialized with FAN_UNLIMITED_MARKS, its own marks are not accounted in the per user marks account, so in effect the limit of max_user_marks is only for the collection of groups that are not initialized with FAN_UNLIMITED_MARKS. Link: https://lore.kernel.org/r/20210304112921.3996419-2-amir73il@gmail.com Suggested-by: Jan Kara <jack@suse.cz> Signed-off-by: Amir Goldstein <amir73il@gmail.com> Signed-off-by: Jan Kara <jack@suse.cz> |
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Lin Feng
|
3b3376f222 |
sysctl.c: fix underflow value setting risk in vm_table
Apart from subsystem specific .proc_handler handler, all ctl_tables with extra1 and extra2 members set should use proc_dointvec_minmax instead of proc_dointvec, or the limit set in extra* never work and potentially echo underflow values(negative numbers) is likely make system unstable. Especially vfs_cache_pressure and zone_reclaim_mode, -1 is apparently not a valid value, but we can set to them. And then kernel may crash. # echo -1 > /proc/sys/vm/vfs_cache_pressure Link: https://lkml.kernel.org/r/20201223105535.2875-1-linf@wangsu.com Signed-off-by: Lin Feng <linf@wangsu.com> Cc: Alexey Dobriyan <adobriyan@gmail.com> Cc: "Eric W. Biederman" <ebiederm@xmission.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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chao
|
dfe564045c |
rcu: Panic after fixed number of stalls
Some stalls are transient, so that system fully recovers. This commit therefore allows users to configure the number of stalls that must happen in order to trigger kernel panic. Signed-off-by: chao <chao@eero.com> Signed-off-by: Paul E. McKenney <paulmck@kernel.org> |
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Linus Torvalds
|
5ef64cc898 |
mm: allow a controlled amount of unfairness in the page lock
Commit
|
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Tobias Klauser
|
7787b6fc93 |
bpf, sysctl: Let bpf_stats_handler take a kernel pointer buffer
Commit |