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2446 Commits
| Author | SHA1 | Message | Date | |
|---|---|---|---|---|
Tao Huang
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fd0e3eb0c2 |
Merge remote branch 'android-4.19' of https://android.googlesource.com/kernel/common
* android-4.19: (3557 commits) ANDROID: kernel: cgroup: cpuset: Clear cpus_requested for empty buf ANDROID: kernel: cgroup: cpuset: Add missing allocation of cpus_requested in alloc_trial_cpuset Linux 4.19.53 rtc: pcf8523: don't return invalid date when battery is low drm: add fallback override/firmware EDID modes workaround drm/edid: abstract override/firmware EDID retrieval x86/resctrl: Prevent NULL pointer dereference when local MBM is disabled x86/mm/KASLR: Compute the size of the vmemmap section properly x86/kasan: Fix boot with 5-level paging and KASAN x86/microcode, cpuhotplug: Add a microcode loader CPU hotplug callback RAS/CEC: Fix binary search function RAS/CEC: Convert the timer callback to a workqueue timekeeping: Repair ktime_get_coarse*() granularity USB: serial: option: add Telit 0x1260 and 0x1261 compositions USB: serial: option: add support for Simcom SIM7500/SIM7600 RNDIS mode USB: serial: pl2303: add Allied Telesis VT-Kit3 USB: usb-storage: Add new ID to ums-realtek USB: Fix chipmunk-like voice when using Logitech C270 for recording audio. usb: dwc2: host: Fix wMaxPacketSize handling (fix webcam regression) usb: dwc2: Fix DMA cache alignment issues ... Conflicts: arch/arm/boot/dts/rk3288.dtsi drivers/bluetooth/hci_ldisc.c drivers/clk/clk-fractional-divider.c drivers/clk/rockchip/clk-rk3288.c drivers/gpu/drm/rockchip/rockchip_drm_vop.c init/main.c kernel/sched/fair.c Change-Id: I8bcf9aad06fe9648fc2621bac8475a47be1212fb |
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Greg Kroah-Hartman
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01f5de3fbc |
This is the 4.19.48 stable release
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Masahiro Yamada
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0276ebf166 |
jump_label: move 'asm goto' support test to Kconfig
commit
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Greg Kroah-Hartman
|
cab4399ebf |
This is the 4.19.47 stable release
-----BEGIN PGP SIGNATURE----- iQIzBAABCAAdFiEEZH8oZUiU471FcZm+ONu9yGCSaT4FAlzxMDsACgkQONu9yGCS aT6kjxAAvyKCDNGaQgBXGXe6xvBK7ad+mk+MU6WVycN+PIQzA8zVfR7RcGJgEP8t 65QrePyacMe5bmSgTnUKGz6DpwpWbCMamyftjoaPWIhxDFmQy7FB9ANOVoPDBw49 +jKT30ioBSI6LYQDU4xhxDO01HVEXmmLZquqYDfLoHOMLeXCivfTlM7PQPfxMZzn fdeLtvfCnfMiftkXZjGqaWoUAnrlTmncQk9nXMcDgxrGy9pHJ6B1WWE5ygqr4Z5s MaKfHotCSYD/eP8JsyIdJg+iMESv5Z0ZDCjbVslm81fCLeUD6atdnmpYxCphmT7Q ifN23i4FJrXBX4xLpD9RYzavH3+hQzqb2pt02aBZRW0OLFK0qjYrkdayjwWGOIUI zK9bgfHiiNKtoyvakQJ09uMhpO2thWeTMh8a6iBLTQ5Koi60adW1l5GrPuTTZYG7 V8xNB2cLsUktDsAr1I/kwrCMlE/oNFgy2La5zMzmELnFTUJRlMAoAGaa1DPcOFLt QVdT8luJMu+1KTeMZPoK/7QQGszMDTAot4+Ys56KyPQ6zN/rGr2vm7kHYn41FyEp KXpyeIm0/RKxUysz2Fyx+dL75e4ZhBof+amQ7Kotz6bF45o+ZwJ7THT6XKIOoln5 E7iI5RhQMZ2WuVIHLKa0QFBRn4RPpzie1lwOXWAAF6oqNgewXHw= =fjPE -----END PGP SIGNATURE----- Merge 4.19.47 into android-4.19 Changes in 4.19.47 x86: Hide the int3_emulate_call/jmp functions from UML ext4: do not delete unlinked inode from orphan list on failed truncate ext4: wait for outstanding dio during truncate in nojournal mode f2fs: Fix use of number of devices KVM: x86: fix return value for reserved EFER bio: fix improper use of smp_mb__before_atomic() sbitmap: fix improper use of smp_mb__before_atomic() Revert "scsi: sd: Keep disk read-only when re-reading partition" crypto: vmx - CTR: always increment IV as quadword mmc: sdhci-iproc: cygnus: Set NO_HISPD bit to fix HS50 data hold time problem mmc: sdhci-iproc: Set NO_HISPD bit to fix HS50 data hold time problem kvm: svm/avic: fix off-by-one in checking host APIC ID libnvdimm/pmem: Bypass CONFIG_HARDENED_USERCOPY overhead arm64/kernel: kaslr: reduce module randomization range to 2 GB arm64/iommu: handle non-remapped addresses in ->mmap and ->get_sgtable gfs2: Fix sign extension bug in gfs2_update_stats btrfs: don't double unlock on error in btrfs_punch_hole Btrfs: do not abort transaction at btrfs_update_root() after failure to COW path Btrfs: avoid fallback to transaction commit during fsync of files with holes Btrfs: fix race between ranged fsync and writeback of adjacent ranges btrfs: sysfs: Fix error path kobject memory leak btrfs: sysfs: don't leak memory when failing add fsid udlfb: fix some inconsistent NULL checking fbdev: fix divide error in fb_var_to_videomode NFSv4.2 fix unnecessary retry in nfs4_copy_file_range NFSv4.1 fix incorrect return value in copy_file_range bpf: add bpf_jit_limit knob to restrict unpriv allocations brcmfmac: assure SSID length from firmware is limited brcmfmac: add subtype check for event handling in data path arm64: errata: Add workaround for Cortex-A76 erratum #1463225 btrfs: honor path->skip_locking in backref code ovl: relax WARN_ON() for overlapping layers use case fbdev: fix WARNING in __alloc_pages_nodemask bug media: cpia2: Fix use-after-free in cpia2_exit media: serial_ir: Fix use-after-free in serial_ir_init_module media: vb2: add waiting_in_dqbuf flag media: vivid: use vfree() instead of kfree() for dev->bitmap_cap ssb: Fix possible NULL pointer dereference in ssb_host_pcmcia_exit bpf: devmap: fix use-after-free Read in __dev_map_entry_free batman-adv: mcast: fix multicast tt/tvlv worker locking at76c50x-usb: Don't register led_trigger if usb_register_driver failed acct_on(): don't mess with freeze protection Revert "btrfs: Honour FITRIM range constraints during free space trim" gfs2: Fix lru_count going negative cxgb4: Fix error path in cxgb4_init_module NFS: make nfs_match_client killable IB/hfi1: Fix WQ_MEM_RECLAIM warning gfs2: Fix occasional glock use-after-free mmc: core: Verify SD bus width tools/bpf: fix perf build error with uClibc (seen on ARC) selftests/bpf: set RLIMIT_MEMLOCK properly for test_libbpf_open.c bpftool: exclude bash-completion/bpftool from .gitignore pattern dmaengine: tegra210-dma: free dma controller in remove() net: ena: gcc 8: fix compilation warning hv_netvsc: fix race that may miss tx queue wakeup Bluetooth: Ignore CC events not matching the last HCI command pinctrl: zte: fix leaked of_node references ASoC: Intel: kbl_da7219_max98357a: Map BTN_0 to KEY_PLAYPAUSE usb: dwc2: gadget: Increase descriptors count for ISOC's usb: dwc3: move synchronize_irq() out of the spinlock protected block ASoC: hdmi-codec: unlock the device on startup errors powerpc/perf: Return accordingly on invalid chip-id in powerpc/boot: Fix missing check of lseek() return value powerpc/perf: Fix loop exit condition in nest_imc_event_init ASoC: imx: fix fiq dependencies spi: pxa2xx: fix SCR (divisor) calculation brcm80211: potential NULL dereference in brcmf_cfg80211_vndr_cmds_dcmd_handler() ACPI / property: fix handling of data_nodes in acpi_get_next_subnode() drm/nouveau/bar/nv50: ensure BAR is mapped media: stm32-dcmi: return appropriate error codes during probe ARM: vdso: Remove dependency with the arch_timer driver internals arm64: Fix compiler warning from pte_unmap() with -Wunused-but-set-variable powerpc/watchdog: Use hrtimers for per-CPU heartbeat sched/cpufreq: Fix kobject memleak scsi: qla2xxx: Fix a qla24xx_enable_msix() error path scsi: qla2xxx: Fix abort handling in tcm_qla2xxx_write_pending() scsi: qla2xxx: Avoid that lockdep complains about unsafe locking in tcm_qla2xxx_close_session() scsi: qla2xxx: Fix hardirq-unsafe locking x86/modules: Avoid breaking W^X while loading modules Btrfs: fix data bytes_may_use underflow with fallocate due to failed quota reserve btrfs: fix panic during relocation after ENOSPC before writeback happens btrfs: Don't panic when we can't find a root key iwlwifi: pcie: don't crash on invalid RX interrupt rtc: 88pm860x: prevent use-after-free on device remove rtc: stm32: manage the get_irq probe defer case scsi: qedi: Abort ep termination if offload not scheduled s390/kexec_file: Fix detection of text segment in ELF loader sched/nohz: Run NOHZ idle load balancer on HK_FLAG_MISC CPUs w1: fix the resume command API s390: qeth: address type mismatch warning dmaengine: pl330: _stop: clear interrupt status mac80211/cfg80211: update bss channel on channel switch libbpf: fix samples/bpf build failure due to undefined UINT32_MAX slimbus: fix a potential NULL pointer dereference in of_qcom_slim_ngd_register ASoC: fsl_sai: Update is_slave_mode with correct value mwifiex: prevent an array overflow rsi: Fix NULL pointer dereference in kmalloc net: cw1200: fix a NULL pointer dereference nvme: set 0 capacity if namespace block size exceeds PAGE_SIZE nvme-rdma: fix a NULL deref when an admin connect times out crypto: sun4i-ss - Fix invalid calculation of hash end bcache: avoid potential memleak of list of journal_replay(s) in the CACHE_SYNC branch of run_cache_set bcache: return error immediately in bch_journal_replay() bcache: fix failure in journal relplay bcache: add failure check to run_cache_set() for journal replay bcache: avoid clang -Wunintialized warning RDMA/cma: Consider scope_id while binding to ipv6 ll address vfio-ccw: Do not call flush_workqueue while holding the spinlock vfio-ccw: Release any channel program when releasing/removing vfio-ccw mdev x86/build: Move _etext to actual end of .text smpboot: Place the __percpu annotation correctly x86/mm: Remove in_nmi() warning from 64-bit implementation of vmalloc_fault() mm/uaccess: Use 'unsigned long' to placate UBSAN warnings on older GCC versions Bluetooth: hci_qca: Give enough time to ROME controller to bootup. HID: logitech-hidpp: use RAP instead of FAP to get the protocol version pinctrl: pistachio: fix leaked of_node references pinctrl: samsung: fix leaked of_node references clk: rockchip: undo several noc and special clocks as critical on rk3288 perf/arm-cci: Remove broken race mitigation dmaengine: at_xdmac: remove BUG_ON macro in tasklet media: coda: clear error return value before picture run media: ov6650: Move v4l2_clk_get() to ov6650_video_probe() helper media: au0828: stop video streaming only when last user stops media: ov2659: make S_FMT succeed even if requested format doesn't match audit: fix a memory leak bug media: stm32-dcmi: fix crash when subdev do not expose any formats media: au0828: Fix NULL pointer dereference in au0828_analog_stream_enable() media: pvrusb2: Prevent a buffer overflow iio: adc: stm32-dfsdm: fix unmet direct dependencies detected block: fix use-after-free on gendisk powerpc/numa: improve control of topology updates powerpc/64: Fix booting large kernels with STRICT_KERNEL_RWX random: fix CRNG initialization when random.trust_cpu=1 random: add a spinlock_t to struct batched_entropy cgroup: protect cgroup->nr_(dying_)descendants by css_set_lock sched/core: Check quota and period overflow at usec to nsec conversion sched/rt: Check integer overflow at usec to nsec conversion sched/core: Handle overflow in cpu_shares_write_u64 staging: vc04_services: handle kzalloc failure drm/msm: a5xx: fix possible object reference leak irq_work: Do not raise an IPI when queueing work on the local CPU thunderbolt: Take domain lock in switch sysfs attribute callbacks s390/qeth: handle error from qeth_update_from_chp_desc() USB: core: Don't unbind interfaces following device reset failure x86/irq/64: Limit IST stack overflow check to #DB stack drm: etnaviv: avoid DMA API warning when importing buffers phy: sun4i-usb: Make sure to disable PHY0 passby for peripheral mode phy: mapphone-mdm6600: add gpiolib dependency i40e: Able to add up to 16 MAC filters on an untrusted VF i40e: don't allow changes to HW VLAN stripping on active port VLANs ACPI/IORT: Reject platform device creation on NUMA node mapping failure arm64: vdso: Fix clock_getres() for CLOCK_REALTIME RDMA/cxgb4: Fix null pointer dereference on alloc_skb failure perf/x86/msr: Add Icelake support perf/x86/intel/rapl: Add Icelake support perf/x86/intel/cstate: Add Icelake support hwmon: (vt1211) Use request_muxed_region for Super-IO accesses hwmon: (smsc47m1) Use request_muxed_region for Super-IO accesses hwmon: (smsc47b397) Use request_muxed_region for Super-IO accesses hwmon: (pc87427) Use request_muxed_region for Super-IO accesses hwmon: (f71805f) Use request_muxed_region for Super-IO accesses scsi: libsas: Do discovery on empty PHY to update PHY info mmc: core: make pwrseq_emmc (partially) support sleepy GPIO controllers mmc_spi: add a status check for spi_sync_locked mmc: sdhci-of-esdhc: add erratum eSDHC5 support mmc: sdhci-of-esdhc: add erratum A-009204 support mmc: sdhci-of-esdhc: add erratum eSDHC-A001 and A-008358 support drm/amdgpu: fix old fence check in amdgpu_fence_emit PM / core: Propagate dev->power.wakeup_path when no callbacks clk: rockchip: Fix video codec clocks on rk3288 extcon: arizona: Disable mic detect if running when driver is removed clk: rockchip: Make rkpwm a critical clock on rk3288 s390: zcrypt: initialize variables before_use x86/microcode: Fix the ancient deprecated microcode loading method s390/mm: silence compiler warning when compiling without CONFIG_PGSTE s390: cio: fix cio_irb declaration selftests: cgroup: fix cleanup path in test_memcg_subtree_control() qmi_wwan: Add quirk for Quectel dynamic config cpufreq: ppc_cbe: fix possible object reference leak cpufreq/pasemi: fix possible object reference leak cpufreq: pmac32: fix possible object reference leak cpufreq: kirkwood: fix possible object reference leak block: sed-opal: fix IOC_OPAL_ENABLE_DISABLE_MBR x86/build: Keep local relocations with ld.lld drm/pl111: fix possible object reference leak iio: ad_sigma_delta: Properly handle SPI bus locking vs CS assertion iio: hmc5843: fix potential NULL pointer dereferences iio: common: ssp_sensors: Initialize calculated_time in ssp_common_process_data iio: adc: ti-ads7950: Fix improper use of mlock selftests/bpf: ksym_search won't check symbols exists rtlwifi: fix a potential NULL pointer dereference mwifiex: Fix mem leak in mwifiex_tm_cmd brcmfmac: fix missing checks for kmemdup b43: shut up clang -Wuninitialized variable warning brcmfmac: convert dev_init_lock mutex to completion brcmfmac: fix WARNING during USB disconnect in case of unempty psq brcmfmac: fix race during disconnect when USB completion is in progress brcmfmac: fix Oops when bringing up interface during USB disconnect rtc: xgene: fix possible race condition rtlwifi: fix potential NULL pointer dereference scsi: ufs: Fix regulator load and icc-level configuration scsi: ufs: Avoid configuring regulator with undefined voltage range drm/panel: otm8009a: Add delay at the end of initialization arm64: cpu_ops: fix a leaked reference by adding missing of_node_put wil6210: fix return code of wmi_mgmt_tx and wmi_mgmt_tx_ext x86/uaccess, ftrace: Fix ftrace_likely_update() vs. SMAP x86/uaccess, signal: Fix AC=1 bloat x86/ia32: Fix ia32_restore_sigcontext() AC leak x86/uaccess: Fix up the fixup chardev: add additional check for minor range overlap RDMA/hns: Fix bad endianess of port_pd variable sh: sh7786: Add explicit I/O cast to sh7786_mm_sel() HID: core: move Usage Page concatenation to Main item ASoC: eukrea-tlv320: fix a leaked reference by adding missing of_node_put ASoC: fsl_utils: fix a leaked reference by adding missing of_node_put cxgb3/l2t: Fix undefined behaviour HID: logitech-hidpp: change low battery level threshold from 31 to 30 percent spi: tegra114: reset controller on probe kobject: Don't trigger kobject_uevent(KOBJ_REMOVE) twice. media: video-mux: fix null pointer dereferences media: wl128x: prevent two potential buffer overflows media: gspca: Kill URBs on USB device disconnect efifb: Omit memory map check on legacy boot thunderbolt: property: Fix a missing check of kzalloc thunderbolt: Fix to check the return value of kmemdup timekeeping: Force upper bound for setting CLOCK_REALTIME scsi: qedf: Add missing return in qedf_post_io_req() in the fcport offload check virtio_console: initialize vtermno value for ports tty: ipwireless: fix missing checks for ioremap overflow: Fix -Wtype-limits compilation warnings x86/mce: Fix machine_check_poll() tests for error types rcutorture: Fix cleanup path for invalid torture_type strings x86/mce: Handle varying MCA bank counts rcuperf: Fix cleanup path for invalid perf_type strings usb: core: Add PM runtime calls to usb_hcd_platform_shutdown scsi: qla4xxx: avoid freeing unallocated dma memory scsi: lpfc: avoid uninitialized variable warning selinux: avoid uninitialized variable warning batman-adv: allow updating DAT entry timeouts on incoming ARP Replies dmaengine: tegra210-adma: use devm_clk_*() helpers hwrng: omap - Set default quality thunderbolt: Fix to check return value of ida_simple_get thunderbolt: Fix to check for kmemdup failure drm/amd/display: fix releasing planes when exiting odm thunderbolt: property: Fix a NULL pointer dereference e1000e: Disable runtime PM on CNP+ tinydrm/mipi-dbi: Use dma-safe buffers for all SPI transfers igb: Exclude device from suspend direct complete optimization media: si2165: fix a missing check of return value media: dvbsky: Avoid leaking dvb frontend media: m88ds3103: serialize reset messages in m88ds3103_set_frontend media: staging: davinci_vpfe: disallow building with COMPILE_TEST drm/amd/display: Fix Divide by 0 in memory calculations drm/amd/display: Set stream->mode_changed when connectors change scsi: ufs: fix a missing check of devm_reset_control_get media: vimc: stream: fix thread state before sleep media: gspca: do not resubmit URBs when streaming has stopped media: go7007: avoid clang frame overflow warning with KASAN media: vimc: zero the media_device on probe scsi: lpfc: Fix FDMI manufacturer attribute value scsi: lpfc: Fix fc4type information for FDMI media: saa7146: avoid high stack usage with clang scsi: lpfc: Fix SLI3 commands being issued on SLI4 devices spi : spi-topcliff-pch: Fix to handle empty DMA buffers drm/omap: dsi: Fix PM for display blank with paired dss_pll calls spi: rspi: Fix sequencer reset during initialization spi: imx: stop buffer overflow in RX FIFO flush spi: Fix zero length xfer bug ASoC: davinci-mcasp: Fix clang warning without CONFIG_PM drm/v3d: Handle errors from IRQ setup. drm/drv: Hold ref on parent device during drm_device lifetime drm: Wake up next in drm_read() chain if we are forced to putback the event drm/sun4i: dsi: Change the start delay calculation vfio-ccw: Prevent quiesce function going into an infinite loop drm/sun4i: dsi: Enforce boundaries on the start delay NFS: Fix a double unlock from nfs_match,get_client Linux 4.19.47 Signed-off-by: Greg Kroah-Hartman <gregkh@google.com> |
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Konstantin Khlebnikov
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355673f808 |
sched/core: Handle overflow in cpu_shares_write_u64
[ Upstream commit
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Konstantin Khlebnikov
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7053046e35 |
sched/rt: Check integer overflow at usec to nsec conversion
[ Upstream commit
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Konstantin Khlebnikov
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925275d0cc |
sched/core: Check quota and period overflow at usec to nsec conversion
[ Upstream commit
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Nicholas Piggin
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07da741d48 |
sched/nohz: Run NOHZ idle load balancer on HK_FLAG_MISC CPUs
[ Upstream commit
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Greg Kroah-Hartman
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aa07ecba6f |
This is the 4.19.46 stable release
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net: avoid weird emergency message net/mlx4_core: Change the error print to info print net: test nouarg before dereferencing zerocopy pointers net: usb: qmi_wwan: add Telit 0x1260 and 0x1261 compositions nfp: flower: add rcu locks when accessing netdev for tunnels ppp: deflate: Fix possible crash in deflate_init rtnetlink: always put IFLA_LINK for links with a link-netnsid tipc: switch order of device registration to fix a crash vsock/virtio: free packets during the socket release tipc: fix modprobe tipc failed after switch order of device registration vsock/virtio: Initialize core virtio vsock before registering the driver net/mlx5: Imply MLXFW in mlx5_core net/mlx5e: Fix ethtool rxfh commands when CONFIG_MLX5_EN_RXNFC is disabled parisc: Export running_on_qemu symbol for modules parisc: Skip registering LED when running in QEMU parisc: Use PA_ASM_LEVEL in boot code parisc: Rename LEVEL to PA_ASM_LEVEL to avoid name clash with DRBD code stm class: Fix channel free in stm output free path stm class: Fix channel bitmap on 32-bit systems brd: re-enable __GFP_HIGHMEM in brd_insert_page() proc: prevent changes to overridden credentials Revert "MD: fix lock contention for flush bios" md: batch flush requests. md: add mddev->pers to avoid potential NULL pointer dereference dcache: sort the freeing-without-RCU-delay mess for good. intel_th: msu: Fix single mode with IOMMU p54: drop device reference count if fails to enable device of: fix clang -Wunsequenced for be32_to_cpu() cifs: fix strcat buffer overflow and reduce raciness in smb21_set_oplock_level() phy: ti-pipe3: fix missing bit-wise or operator when assigning val media: ov6650: Fix sensor possibly not detected on probe media: imx: csi: Allow unknown nearest upstream entities media: imx: Clear fwnode link struct for each endpoint iteration NFS4: Fix v4.0 client state corruption when mount PNFS fallback to MDS if no deviceid found clk: hi3660: Mark clk_gate_ufs_subsys as critical clk: tegra: Fix PLLM programming on Tegra124+ when PMC overrides divider clk: mediatek: Disable tuner_en before change PLL rate clk: rockchip: fix wrong clock definitions for rk3328 udlfb: delete the unused parameter for dlfb_handle_damage udlfb: fix sleeping inside spinlock udlfb: introduce a rendering mutex fuse: fix writepages on 32bit fuse: honor RLIMIT_FSIZE in fuse_file_fallocate ovl: fix missing upper fs freeze protection on copy up for ioctl iommu/tegra-smmu: Fix invalid ASID bits on Tegra30/114 ceph: flush dirty inodes before proceeding with remount x86_64: Add gap to int3 to allow for call emulation x86_64: Allow breakpoints to emulate call instructions ftrace/x86_64: Emulate call function while updating in breakpoint handler tracing: Fix partial reading of trace event's id file memory: tegra: Fix integer overflow on tick value calculation perf intel-pt: Fix instructions sampling rate perf intel-pt: Fix improved sample timestamp perf intel-pt: Fix sample timestamp wrt non-taken branches MIPS: perf: Fix build with CONFIG_CPU_BMIPS5000 enabled objtool: Allow AR to be overridden with HOSTAR fbdev/efifb: Ignore framebuffer memmap entries that lack any memory types fbdev: sm712fb: fix brightness control on reboot, don't set SR30 fbdev: sm712fb: fix VRAM detection, don't set SR70/71/74/75 fbdev: sm712fb: fix white screen of death on reboot, don't set CR3B-CR3F fbdev: sm712fb: fix boot screen glitch when sm712fb replaces VGA fbdev: sm712fb: fix crashes during framebuffer writes by correctly mapping VRAM fbdev: sm712fb: fix support for 1024x768-16 mode fbdev: sm712fb: use 1024x768 by default on non-MIPS, fix garbled display fbdev: sm712fb: fix crashes and garbled display during DPMS modesetting PCI: Mark AMD Stoney Radeon R7 GPU ATS as broken PCI: Mark Atheros AR9462 to avoid bus reset PCI: Init PCIe feature bits for managed host bridge alloc PCI/AER: Change pci_aer_init() stub to return void PCI: rcar: Add the initialization of PCIe link in resume_noirq() PCI: Factor out pcie_retrain_link() function PCI: Work around Pericom PCIe-to-PCI bridge Retrain Link erratum dm cache metadata: Fix loading discard bitset dm zoned: Fix zone report handling dm delay: fix a crash when invalid device is specified dm integrity: correctly calculate the size of metadata area dm mpath: always free attached_handler_name in parse_path() fuse: Add FOPEN_STREAM to use stream_open() xfrm: policy: Fix out-of-bound array accesses in __xfrm_policy_unlink xfrm6_tunnel: Fix potential panic when unloading xfrm6_tunnel module vti4: ipip tunnel deregistration fixes. xfrm: clean up xfrm protocol checks esp4: add length check for UDP encapsulation xfrm: Honor original L3 slave device in xfrmi policy lookup xfrm4: Fix uninitialized memory read in _decode_session4 clk: sunxi-ng: nkmp: Avoid GENMASK(-1, 0) power: supply: cpcap-battery: Fix division by zero securityfs: fix use-after-free on symlink traversal apparmorfs: fix use-after-free on symlink traversal PCI: Fix issue with "pci=disable_acs_redir" parameter being ignored x86: kvm: hyper-v: deal with buggy TLB flush requests from WS2012 mac80211: Fix kernel panic due to use of txq after free net: ieee802154: fix missing checks for regmap_update_bits KVM: arm/arm64: Ensure vcpu target is unset on reset failure power: supply: sysfs: prevent endless uevent loop with CONFIG_POWER_SUPPLY_DEBUG bpf: Fix preempt_enable_no_resched() abuse qmi_wwan: new Wistron, ZTE and D-Link devices iwlwifi: mvm: check for length correctness in iwl_mvm_create_skb() sched/cpufreq: Fix kobject memleak x86/mm/mem_encrypt: Disable all instrumentation for early SME setup ufs: fix braino in ufs_get_inode_gid() for solaris UFS flavour perf bench numa: Add define for RUSAGE_THREAD if not present perf/x86/intel: Fix race in intel_pmu_disable_event() Revert "Don't jump to compute_result state from check_result state" md/raid: raid5 preserve the writeback action after the parity check driver core: Postpone DMA tear-down until after devres release for probe failure Revert "selftests/bpf: skip verifier tests for unsupported program types" bpf: relax inode permission check for retrieving bpf program bpf: add map_lookup_elem_sys_only for lookups from syscall side bpf, lru: avoid messing with eviction heuristics upon syscall lookup fbdev: sm712fb: fix memory frequency by avoiding a switch/case fallthrough Linux 4.19.46 Signed-off-by: Greg Kroah-Hartman <gregkh@google.com> |
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Tobin C. Harding
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290da8e79c |
sched/cpufreq: Fix kobject memleak
[ Upstream commit
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Greg Kroah-Hartman
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5e7b4fbe36 |
This is the 4.19.38 stable release
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Merge 4.19.38 into android-4.19
Changes in 4.19.38
netfilter: nft_compat: use refcnt_t type for nft_xt reference count
netfilter: nft_compat: make lists per netns
netfilter: nf_tables: split set destruction in deactivate and destroy phase
netfilter: nft_compat: destroy function must not have side effects
netfilter: nf_tables: warn when expr implements only one of activate/deactivate
netfilter: nf_tables: unbind set in rule from commit path
netfilter: nft_compat: don't use refcount_inc on newly allocated entry
netfilter: nft_compat: use .release_ops and remove list of extension
netfilter: nf_tables: fix set double-free in abort path
netfilter: nf_tables: bogus EBUSY when deleting set after flush
netfilter: nf_tables: bogus EBUSY in helper removal from transaction
net/ibmvnic: Fix RTNL deadlock during device reset
net: mvpp2: fix validate for PPv2.1
ext4: fix some error pointer dereferences
tipc: handle the err returned from cmd header function
loop: do not print warn message if partition scan is successful
drm/rockchip: fix for mailbox read validation.
vsock/virtio: fix kernel panic from virtio_transport_reset_no_sock
ipvs: fix warning on unused variable
powerpc/vdso32: fix CLOCK_MONOTONIC on PPC64
ALSA: hda/ca0132 - Fix build error without CONFIG_PCI
net: dsa: mv88e6xxx: add call to mv88e6xxx_ports_cmode_init to probe for new DSA framework
cifs: fix memory leak in SMB2_read
cifs: do not attempt cifs operation on smb2+ rename error
tracing: Fix a memory leak by early error exit in trace_pid_write()
tracing: Fix buffer_ref pipe ops
gpio: eic: sprd: Fix incorrect irq type setting for the sync EIC
zram: pass down the bvec we need to read into in the work struct
lib/Kconfig.debug: fix build error without CONFIG_BLOCK
MIPS: scall64-o32: Fix indirect syscall number load
trace: Fix preempt_enable_no_resched() abuse
IB/rdmavt: Fix frwr memory registration
RDMA/mlx5: Do not allow the user to write to the clock page
sched/numa: Fix a possible divide-by-zero
ceph: only use d_name directly when parent is locked
ceph: ensure d_name stability in ceph_dentry_hash()
ceph: fix ci->i_head_snapc leak
nfsd: Don't release the callback slot unless it was actually held
sunrpc: don't mark uninitialised items as VALID.
perf/x86/intel: Update KBL Package C-state events to also include PC8/PC9/PC10 counters
Input: synaptics-rmi4 - write config register values to the right offset
vfio/type1: Limit DMA mappings per container
dmaengine: sh: rcar-dmac: With cyclic DMA residue 0 is valid
dmaengine: sh: rcar-dmac: Fix glitch in dmaengine_tx_status
ARM: 8857/1: efi: enable CP15 DMB instructions before cleaning the cache
powerpc/mm/radix: Make Radix require HUGETLB_PAGE
drm/vc4: Fix memory leak during gpu reset.
Revert "drm/i915/fbdev: Actually configure untiled displays"
drm/vc4: Fix compilation error reported by kbuild test bot
USB: Add new USB LPM helpers
USB: Consolidate LPM checks to avoid enabling LPM twice
slip: make slhc_free() silently accept an error pointer
intel_th: gth: Fix an off-by-one in output unassigning
fs/proc/proc_sysctl.c: Fix a NULL pointer dereference
workqueue: Try to catch flush_work() without INIT_WORK().
binder: fix handling of misaligned binder object
sched/deadline: Correctly handle active 0-lag timers
NFS: Forbid setting AF_INET6 to "struct sockaddr_in"->sin_family.
netfilter: ebtables: CONFIG_COMPAT: drop a bogus WARN_ON
fm10k: Fix a potential NULL pointer dereference
tipc: check bearer name with right length in tipc_nl_compat_bearer_enable
tipc: check link name with right length in tipc_nl_compat_link_set
net: netrom: Fix error cleanup path of nr_proto_init
net/rds: Check address length before reading address family
rxrpc: fix race condition in rxrpc_input_packet()
aio: clear IOCB_HIPRI
aio: use assigned completion handler
aio: separate out ring reservation from req allocation
aio: don't zero entire aio_kiocb aio_get_req()
aio: use iocb_put() instead of open coding it
aio: split out iocb copy from io_submit_one()
aio: abstract out io_event filler helper
aio: initialize kiocb private in case any filesystems expect it.
aio: simplify - and fix - fget/fput for io_submit()
pin iocb through aio.
aio: fold lookup_kiocb() into its sole caller
aio: keep io_event in aio_kiocb
aio: store event at final iocb_put()
Fix aio_poll() races
x86, retpolines: Raise limit for generating indirect calls from switch-case
x86/retpolines: Disable switch jump tables when retpolines are enabled
mm: Fix warning in insert_pfn()
x86/fpu: Don't export __kernel_fpu_{begin,end}()
ipv4: add sanity checks in ipv4_link_failure()
ipv4: set the tcp_min_rtt_wlen range from 0 to one day
mlxsw: spectrum: Fix autoneg status in ethtool
net/mlx5e: ethtool, Remove unsupported SFP EEPROM high pages query
net: rds: exchange of 8K and 1M pool
net/rose: fix unbound loop in rose_loopback_timer()
net: stmmac: move stmmac_check_ether_addr() to driver probe
net/tls: fix refcount adjustment in fallback
stmmac: pci: Adjust IOT2000 matching
team: fix possible recursive locking when add slaves
net: hns: Fix WARNING when hns modules installed
mlxsw: pci: Reincrease PCI reset timeout
mlxsw: spectrum: Put MC TCs into DWRR mode
net/mlx5e: Fix the max MTU check in case of XDP
net/mlx5e: Fix use-after-free after xdp_return_frame
net/tls: avoid potential deadlock in tls_set_device_offload_rx()
net/tls: don't leak IV and record seq when offload fails
powerpc/fsl: Add FSL_PPC_BOOK3E as supported arch for nospectre_v2 boot arg
Linux 4.19.38
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
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luca abeni
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245a94a0ff |
sched/deadline: Correctly handle active 0-lag timers
commit
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Xie XiuQi
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9b8c07129d |
sched/numa: Fix a possible divide-by-zero
commit
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Greg Kroah-Hartman
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9bf5904866 |
This is the 4.19.37 stable release
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add two more pin configuration sets to quirk table ALSA: core: Fix card races between register and disconnect Input: elan_i2c - add hardware ID for multiple Lenovo laptops serial: sh-sci: Fix HSCIF RX sampling point adjustment serial: sh-sci: Fix HSCIF RX sampling point calculation vt: fix cursor when clearing the screen scsi: core: set result when the command cannot be dispatched Revert "scsi: fcoe: clear FC_RP_STARTED flags when receiving a LOGO" Revert "svm: Fix AVIC incomplete IPI emulation" coredump: fix race condition between mmget_not_zero()/get_task_mm() and core dumping ipmi: fix sleep-in-atomic in free_user at cleanup SRCU user->release_barrier crypto: x86/poly1305 - fix overflow during partial reduction drm/ttm: fix out-of-bounds read in ttm_put_pages() v2 arm64: futex: Restore oldval initialization to work around buggy compilers x86/kprobes: Verify stack frame on kretprobe kprobes: Mark ftrace mcount handler functions nokprobe kprobes: Fix error check when reusing optimized probes rt2x00: do not increment sequence number while re-transmitting mac80211: do not call driver wake_tx_queue op during reconfig drm/amdgpu/gmc9: fix VM_L2_CNTL3 programming perf/x86/amd: Add event map for AMD Family 17h x86/cpu/bugs: Use __initconst for 'const' init data perf/x86: Fix incorrect PEBS_REGS x86/speculation: Prevent deadlock on ssb_state::lock timers/sched_clock: Prevent generic sched_clock wrap caused by tick_freeze() nfit/ars: Remove ars_start_flags nfit/ars: Introduce scrub_flags nfit/ars: Allow root to busy-poll the ARS state machine nfit/ars: Avoid stale ARS results mmc: sdhci: Fix data command CRC error handling mmc: sdhci: Rename SDHCI_ACMD12_ERR and SDHCI_INT_ACMD12ERR mmc: sdhci: Handle auto-command errors modpost: file2alias: go back to simple devtable lookup modpost: file2alias: check prototype of handler tpm/tpm_i2c_atmel: Return -E2BIG when the transfer is incomplete tpm: Fix the type of the return value in calc_tpm2_event_size() Revert "kbuild: use -Oz instead of -Os when using clang" sched/fair: Limit sched_cfs_period_timer() loop to avoid hard lockup device_cgroup: fix RCU imbalance in error case mm/vmstat.c: fix /proc/vmstat format for CONFIG_DEBUG_TLBFLUSH=y CONFIG_SMP=n ALSA: info: Fix racy addition/deletion of nodes percpu: stop printing kernel addresses tools include: Adopt linux/bits.h ASoC: rockchip: add missing INTERLEAVED PCM attribute i2c-hid: properly terminate i2c_hid_dmi_desc_override_table[] array Revert "locking/lockdep: Add debug_locks check in __lock_downgrade()" kernel/sysctl.c: fix out-of-bounds access when setting file-max Linux 4.19.37 Signed-off-by: Greg Kroah-Hartman <gregkh@google.com> |
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Phil Auld
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c3edd427d5 |
sched/fair: Limit sched_cfs_period_timer() loop to avoid hard lockup
[ Upstream commit
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Greg Kroah-Hartman
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10f41ccfc7 |
This is the 4.19.36 stable release
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IB/mlx4: Fix race condition between catas error reset and aliasguid flows i40iw: Avoid panic when handling the inetdev event mmc: davinci: remove extraneous __init annotation ALSA: opl3: fix mismatch between snd_opl3_drum_switch definition and declaration thermal/intel_powerclamp: fix __percpu declaration of worker_data thermal: samsung: Fix incorrect check after code merge thermal: bcm2835: Fix crash in bcm2835_thermal_debugfs thermal/int340x_thermal: Add additional UUIDs thermal/int340x_thermal: fix mode setting thermal/intel_powerclamp: fix truncated kthread name scsi: iscsi: flush running unbind operations when removing a session sched/cpufreq: Fix 32-bit math overflow sched/core: Fix buffer overflow in cgroup2 property cpu.max x86/mm: Don't leak kernel addresses tools/power turbostat: return the exit status of a command perf list: Don't forget to drop the reference to the allocated thread_map perf config: Fix an error in the config template documentation perf config: Fix a memory leak in collect_config() perf build-id: Fix memory leak in print_sdt_events() perf top: Fix error handling in cmd_top() perf hist: Add missing map__put() in error case perf evsel: Free evsel->counts in perf_evsel__exit() perf tests: Fix a memory leak of cpu_map object in the openat_syscall_event_on_all_cpus test perf tests: Fix memory leak by expr__find_other() in test__expr() perf tests: Fix a memory leak in test__perf_evsel__tp_sched_test() ACPI / utils: Drop reference in test for device presence PM / Domains: Avoid a potential deadlock blk-iolatency: #include "blk.h" drm/exynos/mixer: fix MIXER shadow registry synchronisation code irqchip/stm32: Don't clear rising/falling config registers at init irqchip/mbigen: Don't clear eventid when freeing an MSI x86/hpet: Prevent potential NULL pointer dereference x86/hyperv: Prevent potential NULL pointer dereference x86/cpu/cyrix: Use correct macros for Cyrix calls on Geode processors drm/nouveau/debugfs: Fix check of pm_runtime_get_sync failure iommu/vt-d: Check capability before disabling protected memory x86/hw_breakpoints: Make default case in hw_breakpoint_arch_parse() return an error fix incorrect error code mapping for OBJECTID_NOT_FOUND x86/gart: Exclude GART aperture from kcore ext4: prohibit fstrim in norecovery mode drm/cirrus: Use drm_framebuffer_put to avoid kernel oops in clean-up gpio: pxa: handle corner case of unprobed device rsi: improve kernel thread handling to fix kernel panic f2fs: fix to avoid NULL pointer dereference on se->discard_map 9p: do not trust pdu content for stat item size 9p locks: add mount option for lock retry interval ASoC: Fix UBSAN warning at snd_soc_get/put_volsw_sx() f2fs: fix to do sanity check with current segment number netfilter: xt_cgroup: shrink size of v2 path serial: uartps: console_setup() can't be placed to init section powerpc/pseries: Remove prrn_work workqueue media: au0828: cannot kfree dev before usb disconnect Bluetooth: Fix debugfs NULL pointer dereference HID: i2c-hid: override HID descriptors for certain devices pinctrl: core: make sure strcmp() doesn't get a null parameter ARM: samsung: Limit SAMSUNG_PM_CHECK config option to non-Exynos platforms usbip: fix vhci_hcd controller counting ACPI / SBS: Fix GPE storm on recent MacBookPro's HID: usbhid: Add quirk for Redragon/Dragonrise Seymur 2 KVM: nVMX: restore host state in nested_vmx_vmexit for VMFail compiler.h: update definition of unreachable() netfilter: nf_flow_table: remove flowtable hook flush routine in netns exit routine f2fs: cleanup dirty pages if recover failed net: stmmac: Set OWN bit for jumbo frames cifs: fallback to older infolevels on findfirst queryinfo retry kernel: hung_task.c: disable on suspend platform/x86: Add Intel AtomISP2 dummy / power-management driver drm/ttm: Fix bo_global and mem_global kfree error ALSA: hda: fix front speakers on Huawei MBXP ACPI: EC / PM: Disable non-wakeup GPEs for suspend-to-idle net/rds: fix warn in rds_message_alloc_sgs xfrm: destroy xfrm_state synchronously on net exit path crypto: sha256/arm - fix crash bug in Thumb2 build crypto: sha512/arm - fix crash bug in Thumb2 build net: ip6_gre: fix possible NULL pointer dereference in ip6erspan_set_version iommu/dmar: Fix buffer overflow during PCI bus notification scsi: core: Avoid that system resume triggers a kernel warning soc/tegra: pmc: Drop locking from tegra_powergate_is_powered() lkdtm: Print real addresses lkdtm: Add tests for NULL pointer dereference drm/panel: panel-innolux: set display off in innolux_panel_unprepare crypto: axis - fix for recursive locking from bottom half Revert "ACPI / EC: Remove old CLEAR_ON_RESUME quirk" coresight: cpu-debug: Support for CA73 CPUs PCI: Blacklist power management of Gigabyte X299 DESIGNARE EX PCIe ports drm/nouveau/volt/gf117: fix speedo readout register ARM: 8839/1: kprobe: make patch_lock a raw_spinlock_t drm/amdkfd: use init_mqd function to allocate object for hid_mqd (CI) appletalk: Fix use-after-free in atalk_proc_exit lib/div64.c: off by one in shift rxrpc: Fix client call connect/disconnect race f2fs: fix to dirty inode for i_mode recovery include/linux/swap.h: use offsetof() instead of custom __swapoffset macro bpf: fix use after free in bpf_evict_inode IB/hfi1: Failed to drain send queue when QP is put into error state mm: hide incomplete nr_indirectly_reclaimable in /proc/zoneinfo mm: hide incomplete nr_indirectly_reclaimable in sysfs appletalk: Fix compile regression Linux 4.19.36 Signed-off-by: Greg Kroah-Hartman <gregkh@google.com> |
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Konstantin Khlebnikov
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52466ab203 |
sched/core: Fix buffer overflow in cgroup2 property cpu.max
[ Upstream commit |
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Peter Zijlstra
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a8c1de3ab8 |
sched/cpufreq: Fix 32-bit math overflow
[ Upstream commit
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Greg Kroah-Hartman
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3e166630b0 |
This is the 4.19.35 stable release
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Merge 4.19.35 into android-4.19
Changes in 4.19.35
kvm: nVMX: NMI-window and interrupt-window exiting should wake L2 from HLT
drm/i915/gvt: do not let pin count of shadow mm go negative
powerpc/tm: Limit TM code inside PPC_TRANSACTIONAL_MEM
hv_netvsc: Fix unwanted wakeup after tx_disable
ibmvnic: Fix completion structure initialization
ip6_tunnel: Match to ARPHRD_TUNNEL6 for dev type
ipv6: Fix dangling pointer when ipv6 fragment
ipv6: sit: reset ip header pointer in ipip6_rcv
kcm: switch order of device registration to fix a crash
net: ethtool: not call vzalloc for zero sized memory request
net-gro: Fix GRO flush when receiving a GSO packet.
net/mlx5: Decrease default mr cache size
netns: provide pure entropy for net_hash_mix()
net: rds: force to destroy connection if t_sock is NULL in rds_tcp_kill_sock().
net/sched: act_sample: fix divide by zero in the traffic path
net/sched: fix ->get helper of the matchall cls
openvswitch: fix flow actions reallocation
qmi_wwan: add Olicard 600
r8169: disable ASPM again
sctp: initialize _pad of sockaddr_in before copying to user memory
tcp: Ensure DCTCP reacts to losses
tcp: fix a potential NULL pointer dereference in tcp_sk_exit
vrf: check accept_source_route on the original netdevice
net/mlx5e: Fix error handling when refreshing TIRs
net/mlx5e: Add a lock on tir list
nfp: validate the return code from dev_queue_xmit()
nfp: disable netpoll on representors
bnxt_en: Improve RX consumer index validity check.
bnxt_en: Reset device on RX buffer errors.
net: ip_gre: fix possible use-after-free in erspan_rcv
net: ip6_gre: fix possible use-after-free in ip6erspan_rcv
net: core: netif_receive_skb_list: unlist skb before passing to pt->func
r8169: disable default rx interrupt coalescing on RTL8168
net: mlx5: Add a missing check on idr_find, free buf
net/mlx5e: Update xoff formula
net/mlx5e: Update xon formula
kbuild: deb-pkg: fix bindeb-pkg breakage when O= is used
kbuild: clang: choose GCC_TOOLCHAIN_DIR not on LD
x86/vdso: Drop implicit common-page-size linker flag
lib/string.c: implement a basic bcmp
Revert "clk: meson: clean-up clock registration"
netfilter: nfnetlink_cttimeout: pass default timeout policy to obj_to_nlattr
netfilter: nfnetlink_cttimeout: fetch timeouts for udplite and gre, too
arm64: kaslr: Reserve size of ARM64_MEMSTART_ALIGN in linear region
tty: mark Siemens R3964 line discipline as BROKEN
tty: ldisc: add sysctl to prevent autoloading of ldiscs
hwmon: (w83773g) Select REGMAP_I2C to fix build error
ACPICA: Clear status of GPEs before enabling them
ACPICA: Namespace: remove address node from global list after method termination
ALSA: seq: Fix OOB-reads from strlcpy
ALSA: hda/realtek: Enable headset MIC of Acer TravelMate B114-21 with ALC233
ALSA: hda/realtek - Add quirk for Tuxedo XC 1509
ALSA: hda - Add two more machines to the power_save_blacklist
mm/huge_memory.c: fix modifying of page protection by insert_pfn_pmd()
arm64: dts: rockchip: fix rk3328 sdmmc0 write errors
parisc: Detect QEMU earlier in boot process
parisc: regs_return_value() should return gpr28
parisc: also set iaoq_b in instruction_pointer_set()
alarmtimer: Return correct remaining time
drm/i915/gvt: do not deliver a workload if its creation fails
drm/udl: add a release method and delay modeset teardown
kvm: svm: fix potential get_num_contig_pages overflow
include/linux/bitrev.h: fix constant bitrev
mm: writeback: use exact memcg dirty counts
ASoC: intel: Fix crash at suspend/resume after failed codec registration
ASoC: fsl_esai: fix channel swap issue when stream starts
Btrfs: do not allow trimming when a fs is mounted with the nologreplay option
btrfs: prop: fix zstd compression parameter validation
btrfs: prop: fix vanished compression property after failed set
riscv: Fix syscall_get_arguments() and syscall_set_arguments()
block: do not leak memory in bio_copy_user_iov()
block: fix the return errno for direct IO
genirq: Respect IRQCHIP_SKIP_SET_WAKE in irq_chip_set_wake_parent()
genirq: Initialize request_mutex if CONFIG_SPARSE_IRQ=n
virtio: Honour 'may_reduce_num' in vring_create_virtqueue
ARM: dts: rockchip: fix rk3288 cpu opp node reference
ARM: dts: am335x-evmsk: Correct the regulators for the audio codec
ARM: dts: am335x-evm: Correct the regulators for the audio codec
ARM: dts: at91: Fix typo in ISC_D0 on PC9
arm64: futex: Fix FUTEX_WAKE_OP atomic ops with non-zero result value
arm64: dts: rockchip: fix rk3328 rgmii high tx error rate
arm64: backtrace: Don't bother trying to unwind the userspace stack
xen: Prevent buffer overflow in privcmd ioctl
sched/fair: Do not re-read ->h_load_next during hierarchical load calculation
xtensa: fix return_address
x86/asm: Remove dead __GNUC__ conditionals
x86/asm: Use stricter assembly constraints in bitops
x86/perf/amd: Resolve race condition when disabling PMC
x86/perf/amd: Resolve NMI latency issues for active PMCs
x86/perf/amd: Remove need to check "running" bit in NMI handler
PCI: Add function 1 DMA alias quirk for Marvell 9170 SATA controller
PCI: pciehp: Ignore Link State Changes after powering off a slot
dm integrity: change memcmp to strncmp in dm_integrity_ctr
dm: revert
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Mel Gorman
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cb75a0c5d3 |
sched/fair: Do not re-read ->h_load_next during hierarchical load calculation
commit |
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Caesar Wang
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d9ac79d896 |
sched/fair: remove printk while schedule is in progress
It will cause deadlock and while(1) if call printk while schedule is in progress. The block state like as below: cpu0(hold the console sem): printk->console_unlock->up_sem->spin_lock(&sem->lock)->wake_up_process(cpu1) ->try_to_wake_up(cpu1)->while(p->on_cpu). cpu1(request console sem): console_lock->down_sem->schedule->idle_banlance->update_cpu_capacity-> printk->console_trylock->spin_lock(&sem->lock). p->on_cpu will be 1 forever, because the task is still running on cpu1, so cpu0 is blocked in while(p->on_cpu), but cpu1 could not get spin_lock(&sem->lock), it is blocked too, it means the task will running on cpu1 forever. Change-Id: I61f5633b5e8dfa4fb6bac801dc1732a5494a0a88 Signed-off-by: Caesar Wang <wxt@rock-chips.com> Git-commit: df232437710122fcb4e4a0484a1eded5aec29a6a Git-repo: https://android.googlesource.com/kernel/msm Signed-off-by: Pavankumar Kondeti <pkondeti@codeaurora.org> |
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Greg Kroah-Hartman
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d885da678e |
This is the 4.19.34 stable release
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ext4_ind_remove_space() tty/serial: atmel: Add is_half_duplex helper tty/serial: atmel: RS485 HD w/DMA: enable RX after TX is stopped CIFS: fix POSIX lock leak and invalid ptr deref h8300: use cc-cross-prefix instead of hardcoding h8300-unknown-linux- f2fs: fix to adapt small inline xattr space in __find_inline_xattr() f2fs: fix to avoid deadlock in f2fs_read_inline_dir() tracing: kdb: Fix ftdump to not sleep net/mlx5: Avoid panic when setting vport rate net/mlx5: Avoid panic when setting vport mac, getting vport config gpio: gpio-omap: fix level interrupt idling include/linux/relay.h: fix percpu annotation in struct rchan sysctl: handle overflow for file-max net: stmmac: Avoid sometimes uninitialized Clang warnings enic: fix build warning without CONFIG_CPUMASK_OFFSTACK libbpf: force fixdep compilation at the start of the build scsi: hisi_sas: Set PHY linkrate when disconnected scsi: hisi_sas: Fix a timeout race of driver internal and SMP IO iio: adc: fix warning in Qualcomm PM8xxx HK/XOADC driver x86/hyperv: Fix kernel panic when kexec on HyperV perf c2c: Fix c2c report for empty numa node mm/sparse: fix a bad comparison mm/cma.c: cma_declare_contiguous: correct err handling mm/page_ext.c: fix an imbalance with kmemleak mm, swap: bounds check swap_info array accesses to avoid NULL derefs mm,oom: don't kill global init via memory.oom.group memcg: killed threads should not invoke memcg OOM killer mm, mempolicy: fix uninit memory access mm/vmalloc.c: fix kernel BUG at mm/vmalloc.c:512! mm/slab.c: kmemleak no scan alien caches ocfs2: fix a panic problem caused by o2cb_ctl f2fs: do not use mutex lock in atomic context fs/file.c: initialize init_files.resize_wait page_poison: play nicely with KASAN cifs: use correct format characters dm thin: add sanity checks to thin-pool and external snapshot creation f2fs: fix to check inline_xattr_size boundary correctly cifs: Accept validate negotiate if server return NT_STATUS_NOT_SUPPORTED cifs: Fix NULL pointer dereference of devname netfilter: nf_tables: check the result of dereferencing base_chain->stats netfilter: conntrack: tcp: only close if RST matches exact sequence jbd2: fix invalid descriptor block checksum fs: fix guard_bio_eod to check for real EOD errors tools lib traceevent: Fix buffer overflow in arg_eval PCI/PME: Fix hotplug/sysfs remove deadlock in pcie_pme_remove() wil6210: check null pointer in _wil_cfg80211_merge_extra_ies mt76: fix a leaked reference by adding a missing of_node_put crypto: crypto4xx - add missing of_node_put after of_device_is_available crypto: cavium/zip - fix collision with generic cra_driver_name usb: chipidea: Grab the (legacy) USB PHY by phandle first powerpc/powernv/ioda: Fix locked_vm counting for memory used by IOMMU tables scsi: core: replace GFP_ATOMIC with GFP_KERNEL in scsi_scan.c kbuild: invoke syncconfig if include/config/auto.conf.cmd is missing powerpc/xmon: Fix opcode being uninitialized in print_insn_powerpc coresight: etm4x: Add support to enable ETMv4.2 serial: 8250_pxa: honor the port number from devicetree ARM: 8840/1: use a raw_spinlock_t in unwind iommu/io-pgtable-arm-v7s: Only kmemleak_ignore L2 tables powerpc/hugetlb: Handle mmap_min_addr correctly in get_unmapped_area callback btrfs: qgroup: Make qgroup async transaction commit more aggressive mmc: omap: fix the maximum timeout setting net: dsa: mv88e6xxx: Add lockdep classes to fix false positive splat e1000e: Fix -Wformat-truncation warnings mlxsw: spectrum: Avoid -Wformat-truncation warnings platform/x86: ideapad-laptop: Fix no_hw_rfkill_list for Lenovo RESCUER R720-15IKBN platform/mellanox: mlxreg-hotplug: Fix KASAN warning loop: set GENHD_FL_NO_PART_SCAN after blkdev_reread_part() IB/mlx4: Increase the timeout for CM cache clk: fractional-divider: check parent rate only if flag is set perf annotate: Fix getting source line failure ASoC: qcom: Fix of-node refcount unbalance in qcom_snd_parse_of() cpufreq: acpi-cpufreq: Report if CPU doesn't support boost technologies efi: cper: Fix possible out-of-bounds access s390/ism: ignore some errors during deregistration scsi: megaraid_sas: return error when create DMA pool failed scsi: fcoe: make use of fip_mode enum complete drm/amd/display: Clear stream->mode_changed after commit perf test: Fix failure of 'evsel-tp-sched' test on s390 mwifiex: don't advertise IBSS features without FW support perf report: Don't shadow inlined symbol with different addr range SoC: imx-sgtl5000: add missing put_device() media: ov7740: fix runtime pm initialization media: sh_veu: Correct return type for mem2mem buffer helpers media: s5p-jpeg: Correct return type for mem2mem buffer helpers media: rockchip/rga: Correct return type for mem2mem buffer helpers media: s5p-g2d: Correct return type for mem2mem buffer helpers media: mx2_emmaprp: Correct return type for mem2mem buffer helpers media: mtk-jpeg: Correct return type for mem2mem buffer helpers mt76: usb: do not run mt76u_queues_deinit twice xen/gntdev: Do not destroy context while dma-bufs are in use vfs: fix preadv64v2 and pwritev64v2 compat syscalls with offset == -1 HID: intel-ish-hid: avoid binding wrong ishtp_cl_device cgroup, rstat: Don't flush subtree root unless necessary jbd2: fix race when writing superblock leds: lp55xx: fix null deref on firmware load failure perf report: Add s390 diagnosic sampling descriptor size iwlwifi: pcie: fix emergency path ACPI / video: Refactor and fix dmi_is_desktop() selftests: skip seccomp get_metadata test if not real root kprobes: Prohibit probing on bsearch() kprobes: Prohibit probing on RCU debug routine netfilter: conntrack: fix cloned unconfirmed skb->_nfct race in __nf_conntrack_confirm ARM: 8833/1: Ensure that NEON code always compiles with Clang ARM: dts: meson8b: fix the Ethernet data line signals in eth_rgmii_pins ALSA: PCM: check if ops are defined before suspending PCM ath10k: fix shadow register implementation for WCN3990 usb: f_fs: Avoid crash due to out-of-scope stack ptr access sched/topology: Fix percpu data types in struct sd_data & struct s_data bcache: fix input overflow to cache set sysfs file io_error_halflife bcache: fix input overflow to sequential_cutoff bcache: fix potential div-zero error of writeback_rate_i_term_inverse bcache: improve sysfs_strtoul_clamp() genirq: Avoid summation loops for /proc/stat net: marvell: mvpp2: fix stuck in-band SGMII negotiation iw_cxgb4: fix srqidx leak during connection abort net: phy: consider latched link-down status in polling mode fbdev: fbmem: fix memory access if logo is bigger than the screen cdrom: Fix race condition in cdrom_sysctl_register drm: rcar-du: add missing of_node_put drm/amd/display: Don't re-program planes for DPMS changes drm/amd/display: Disconnect mpcc when changing tg perf/aux: Make perf_event accessible to setup_aux() e1000e: fix cyclic resets at link up with active tx e1000e: Exclude device from suspend direct complete optimization platform/x86: intel_pmc_core: Fix PCH IP sts reading i2c: of: Try to find an I2C adapter matching the parent staging: spi: mt7621: Add return code check on device_reset() iwlwifi: mvm: fix RFH config command with >=10 CPUs ASoC: fsl-asoc-card: fix object reference leaks in fsl_asoc_card_probe sched/debug: Initialize sd_sysctl_cpus if !CONFIG_CPUMASK_OFFSTACK efi/memattr: Don't bail on zero VA if it equals the region's PA sched/core: Use READ_ONCE()/WRITE_ONCE() in move_queued_task()/task_rq_lock() drm/vkms: Bugfix extra vblank frame ARM: dts: lpc32xx: Remove leading 0x and 0s from bindings notation efi/arm/arm64: Allow SetVirtualAddressMap() to be omitted soc: qcom: gsbi: Fix error handling in gsbi_probe() mt7601u: bump supported EEPROM version ARM: 8830/1: NOMMU: Toggle only bits in EXC_RETURN we are really care of ARM: avoid Cortex-A9 livelock on tight dmb loops block, bfq: fix in-service-queue check for queue merging bpf: fix missing prototype warnings selftests/bpf: skip verifier tests for unsupported program types powerpc/64s: Clear on-stack exception marker upon exception return cgroup/pids: turn cgroup_subsys->free() into cgroup_subsys->release() to fix the accounting backlight: pwm_bl: Use gpiod_get_value_cansleep() to get initial state tty: increase the default flip buffer limit to 2*640K powerpc/pseries: Perform full re-add of CPU for topology update post-migration drm/amd/display: Enable vblank interrupt during CRC capture ALSA: dice: add support for Solid State Logic Duende Classic/Mini usb: dwc3: gadget: Fix OTG events when gadget driver isn't loaded platform/x86: intel-hid: Missing power button release on some Dell models perf script python: Use PyBytes for attr in trace-event-python perf script python: Add trace_context extension module to sys.modules media: mt9m111: set initial frame size other than 0x0 hwrng: virtio - Avoid repeated init of completion soc/tegra: fuse: Fix illegal free of IO base address HID: intel-ish: ipc: handle PIMR before ish_wakeup also clear PISR busy_clear bit f2fs: UBSAN: set boolean value iostat_enable correctly hpet: Fix missing '=' character in the __setup() code of hpet_mmap_enable cpu/hotplug: Mute hotplug lockdep during init dmaengine: imx-dma: fix warning comparison of distinct pointer types dmaengine: qcom_hidma: assign channel cookie correctly dmaengine: qcom_hidma: initialize tx flags in hidma_prep_dma_* netfilter: physdev: relax br_netfilter dependency media: rcar-vin: Allow independent VIN link enablement media: s5p-jpeg: Check for fmt_ver_flag when doing fmt enumeration regulator: act8865: Fix act8600_sudcdc_voltage_ranges setting pinctrl: meson: meson8b: add the eth_rxd2 and eth_rxd3 pins drm: Auto-set allow_fb_modifiers when given modifiers at plane init drm/nouveau: Stop using drm_crtc_force_disable x86/build: Specify elf_i386 linker emulation explicitly for i386 objects selinux: do not override context on context mounts brcmfmac: Use firmware_request_nowarn for the clm_blob wlcore: Fix memory leak in case wl12xx_fetch_firmware failure x86/build: Mark per-CPU symbols as absolute explicitly for LLD drm/fb-helper: fix leaks in error path of drm_fb_helper_fbdev_setup clk: meson: clean-up clock registration clk: rockchip: fix frac settings of GPLL clock for rk3328 dmaengine: tegra: avoid overflow of byte tracking Input: soc_button_array - fix mapping of the 5th GPIO in a PNP0C40 device drm/dp/mst: Configure no_stop_bit correctly for remote i2c xfers net: stmmac: Avoid one more sometimes uninitialized Clang warning ACPI / video: Extend chassis-type detection with a "Lunch Box" check bcache: fix potential div-zero error of writeback_rate_p_term_inverse kprobes/x86: Blacklist non-attachable interrupt functions Linux 4.19.34 Signed-off-by: Greg Kroah-Hartman <gregkh@google.com> |
||
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Andrea Parri
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e8e0bd4915 |
sched/core: Use READ_ONCE()/WRITE_ONCE() in move_queued_task()/task_rq_lock()
[ Upstream commit
|
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Hidetoshi Seto
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f056c90f07 |
sched/debug: Initialize sd_sysctl_cpus if !CONFIG_CPUMASK_OFFSTACK
[ Upstream commit
|
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Luc Van Oostenryck
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845d4849b6 |
sched/topology: Fix percpu data types in struct sd_data & struct s_data
[ Upstream commit
|
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Quentin Perret
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549020c814 |
ANDROID: sched: Disable find_best_target() by default
Now that the mainline EAS wake-up path has been extended to cope with
prefer-idle tasks, the need for a dedicated Android-specific wake-up
routine (find_best_target()) becomes less clear. Indeed, main reasons
for introducting find_best_target() in the first place were:
1. the energy_diff function was very slow, so we couldn't afford to
use it on all CPUs for each wake-up for latency reasons;
2. schedtune provides additional information about tasks (the
prefer-idle flag in particular) which needed to be taken into
account in the placement algorithm.
Now that the energy diff calculation is much faster (with the simplified
energy model) and that the EAS path is aware of prefer-idle tasks, there
is no clear reason to use find_best_target() any more.
So, let's disable it for now to minimize the amount of out-of-tree code
used in the scheduler. If using the mainline path doesn't cause
regressions, it is a good sign find_best_target() can be removed safely,
eventually. Otherwise, reverting back to the old behaviour is trivial
since this patch only changes the sched_feat default, but doesn't remove
the fbt() code path.
Bug: 120440300
Change-Id: Idb5d68a3c4af7d2212e0922ab6d9a089170b5e1c
Signed-off-by: Quentin Perret <quentin.perret@arm.com>
|
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Quentin Perret
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d0eb1f3514 |
ANDROID: sched/fair: Make the EAS wake-up prefer-idle aware
Make the mainline EAS wake-up path aware of prefer idle tasks in
preparation for disabling find_best_target().
What is done in the mainline algoritm isn't strictly equivalent to the
find_best_target() algorithm but comes real close, and isn't very
invasive. The main differences with the original find_best_target()
behaviour are the following:
1. the policy for prefer idle when there isn't a single idle CPU in the
system is simpler now. We just pick the CPU with the highest spare
capacity;
2. the cstate awareness for prefer idle is implemented by minimizing
the exit latency rather than the idle state index. This is how it is
done in the slow path (find_idlest_group_cpu()), it doesn't require
us to keep hooks into CPUIdle, and should actually be better because
what we want is a CPU that can wake up quickly;
3. non-prefer-idle tasks just use the standard mainline energy-aware
wake-up path, which decides the placement using the Energy Model.
Bug: 120440300
Change-Id: I57769c90c57115f6a28d27c5a88e08aa93a30a56
Signed-off-by: Quentin Perret <quentin.perret@arm.com>
|
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Vincent Guittot
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d36e8b820e |
UPSTREAM: sched/pelt: Skip updating util_est when utilization is higher than CPU's capacity
util_est is mainly meant to be a lower-bound for tasks utilization.
That's why task_util_est() returns the actual util_avg when it's higher
than the estimated utilization.
With new invaraince signal and without any special check on samples
collection, if a task is limited because of thermal capping for
example, we could end up overestimating its utilization and thus
perhaps generating an unwanted frequency spike when the capping is
relaxed... and (even worst) it will take some more activations for the
estimated utilization to converge back to the actual utilization.
Since we cannot easily know if there is idle time in a CPU when a task
completes an activation with a utilization higher then the CPU capacity,
we skip the sampling when utilization is higher than CPU's capacity.
Bug: 120440300
Change-Id: If1a6001451f80acb953e2a5f955fd302b1b73bc0
Suggested-by: Patrick Bellasi <patrick.bellasi@arm.com>
Signed-off-by: Vincent Guittot <vincent.guittot@linaro.org>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Morten.Rasmussen@arm.com
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: bsegall@google.com
Cc: dietmar.eggemann@arm.com
Cc: pjt@google.com
Cc: pkondeti@codeaurora.org
Cc: quentin.perret@arm.com
Cc: rjw@rjwysocki.net
Cc: srinivas.pandruvada@linux.intel.com
Cc: thara.gopinath@linaro.org
Link: https://lkml.kernel.org/r/1548257214-13745-4-git-send-email-vincent.guittot@linaro.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
(cherry picked from commit
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Vincent Guittot
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eb0db1782a |
UPSTREAM: sched/fair: Update scale invariance of PELT
The current implementation of load tracking invariance scales the
contribution with current frequency and uarch performance (only for
utilization) of the CPU. One main result of this formula is that the
figures are capped by current capacity of CPU. Another one is that the
load_avg is not invariant because not scaled with uarch.
The util_avg of a periodic task that runs r time slots every p time slots
varies in the range :
U * (1-y^r)/(1-y^p) * y^i < Utilization < U * (1-y^r)/(1-y^p)
with U is the max util_avg value = SCHED_CAPACITY_SCALE
At a lower capacity, the range becomes:
U * C * (1-y^r')/(1-y^p) * y^i' < Utilization < U * C * (1-y^r')/(1-y^p)
with C reflecting the compute capacity ratio between current capacity and
max capacity.
so C tries to compensate changes in (1-y^r') but it can't be accurate.
Instead of scaling the contribution value of PELT algo, we should scale the
running time. The PELT signal aims to track the amount of computation of
tasks and/or rq so it seems more correct to scale the running time to
reflect the effective amount of computation done since the last update.
In order to be fully invariant, we need to apply the same amount of
running time and idle time whatever the current capacity. Because running
at lower capacity implies that the task will run longer, we have to ensure
that the same amount of idle time will be applied when system becomes idle
and no idle time has been "stolen". But reaching the maximum utilization
value (SCHED_CAPACITY_SCALE) means that the task is seen as an
always-running task whatever the capacity of the CPU (even at max compute
capacity). In this case, we can discard this "stolen" idle times which
becomes meaningless.
In order to achieve this time scaling, a new clock_pelt is created per rq.
The increase of this clock scales with current capacity when something
is running on rq and synchronizes with clock_task when rq is idle. With
this mechanism, we ensure the same running and idle time whatever the
current capacity. This also enables to simplify the pelt algorithm by
removing all references of uarch and frequency and applying the same
contribution to utilization and loads. Furthermore, the scaling is done
only once per update of clock (update_rq_clock_task()) instead of during
each update of sched_entities and cfs/rt/dl_rq of the rq like the current
implementation. This is interesting when cgroup are involved as shown in
the results below:
On a hikey (octo Arm64 platform).
Performance cpufreq governor and only shallowest c-state to remove variance
generated by those power features so we only track the impact of pelt algo.
each test runs 16 times:
./perf bench sched pipe
(higher is better)
kernel tip/sched/core + patch
ops/seconds ops/seconds diff
cgroup
root 59652(+/- 0.18%) 59876(+/- 0.24%) +0.38%
level1 55608(+/- 0.27%) 55923(+/- 0.24%) +0.57%
level2 52115(+/- 0.29%) 52564(+/- 0.22%) +0.86%
hackbench -l 1000
(lower is better)
kernel tip/sched/core + patch
duration(sec) duration(sec) diff
cgroup
root 4.453(+/- 2.37%) 4.383(+/- 2.88%) -1.57%
level1 4.859(+/- 8.50%) 4.830(+/- 7.07%) -0.60%
level2 5.063(+/- 9.83%) 4.928(+/- 9.66%) -2.66%
Then, the responsiveness of PELT is improved when CPU is not running at max
capacity with this new algorithm. I have put below some examples of
duration to reach some typical load values according to the capacity of the
CPU with current implementation and with this patch. These values has been
computed based on the geometric series and the half period value:
Util (%) max capacity half capacity(mainline) half capacity(w/ patch)
972 (95%) 138ms not reachable 276ms
486 (47.5%) 30ms 138ms 60ms
256 (25%) 13ms 32ms 26ms
On my hikey (octo Arm64 platform) with schedutil governor, the time to
reach max OPP when starting from a null utilization, decreases from 223ms
with current scale invariance down to 121ms with the new algorithm.
Bug: 120440300
Change-Id: I0bd4ed2317f2a9a965634e53ce1476417af697a6
Signed-off-by: Vincent Guittot <vincent.guittot@linaro.org>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Morten.Rasmussen@arm.com
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: bsegall@google.com
Cc: dietmar.eggemann@arm.com
Cc: patrick.bellasi@arm.com
Cc: pjt@google.com
Cc: pkondeti@codeaurora.org
Cc: quentin.perret@arm.com
Cc: rjw@rjwysocki.net
Cc: srinivas.pandruvada@linux.intel.com
Cc: thara.gopinath@linaro.org
Link: https://lkml.kernel.org/r/1548257214-13745-3-git-send-email-vincent.guittot@linaro.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
(cherry picked from commit
|
||
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Vincent Guittot
|
0dd28f4253 |
UPSTREAM: sched/fair: Move the rq_of() helper function
Move rq_of() helper function so it can be used in pelt.c
[ mingo: Improve readability while at it. ]
Bug: 120440300
Change-Id: I2133979476631d68baaffcaa308f4cdab94f22b1
Signed-off-by: Vincent Guittot <vincent.guittot@linaro.org>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Morten.Rasmussen@arm.com
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: bsegall@google.com
Cc: dietmar.eggemann@arm.com
Cc: patrick.bellasi@arm.com
Cc: pjt@google.com
Cc: pkondeti@codeaurora.org
Cc: quentin.perret@arm.com
Cc: rjw@rjwysocki.net
Cc: srinivas.pandruvada@linux.intel.com
Cc: thara.gopinath@linaro.org
Link: https://lkml.kernel.org/r/1548257214-13745-2-git-send-email-vincent.guittot@linaro.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
(cherry picked from commit
|
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Dietmar Eggemann
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5bfd3ce4e0 |
UPSTREAM: sched/fair: Remove setting task's se->runnable_weight during PELT update
A CFS (SCHED_OTHER, SCHED_BATCH or SCHED_IDLE policy) task's
se->runnable_weight must always be in sync with its se->load.weight.
se->runnable_weight is set to se->load.weight when the task is
forked (init_entity_runnable_average()) or reniced (reweight_entity()).
There are two cases in set_load_weight() which since they currently only
set se->load.weight could lead to a situation in which se->load.weight
is different to se->runnable_weight for a CFS task:
(1) A task switches to SCHED_IDLE.
(2) A SCHED_FIFO, SCHED_RR or SCHED_DEADLINE task which has been reniced
(during which only its static priority gets set) switches to
SCHED_OTHER or SCHED_BATCH.
Set se->runnable_weight to se->load.weight in these two cases to prevent
this. This eliminates the need to explicitly set it to se->load.weight
during PELT updates in the CFS scheduler fastpath.
Bug: 120440300
Change-Id: I52184a9e1fd53cb42ef3ae546b1fae78b744c9ad
Signed-off-by: Dietmar Eggemann <dietmar.eggemann@arm.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Joel Fernandes <joelaf@google.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Morten Rasmussen <morten.rasmussen@arm.com>
Cc: Patrick Bellasi <patrick.bellasi@arm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Quentin Perret <quentin.perret@arm.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Vincent Guittot <vincent.guittot@linaro.org>
Link: http://lkml.kernel.org/r/20180803140538.1178-1-dietmar.eggemann@arm.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
(cherry picked from commit
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||
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Suren Baghdasaryan
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617a4ba0ec |
FROMLIST: psi: introduce psi monitor
Psi monitor aims to provide a low-latency short-term pressure detection mechanism configurable by users. It allows users to monitor psi metrics growth and trigger events whenever a metric raises above user-defined threshold within user-defined time window. Time window and threshold are both expressed in usecs. Multiple psi resources with different thresholds and window sizes can be monitored concurrently. Psi monitors activate when system enters stall state for the monitored psi metric and deactivate upon exit from the stall state. While system is in the stall state psi signal growth is monitored at a rate of 10 times per tracking window. Min window size is 500ms, therefore the min monitoring interval is 50ms. Max window size is 10s with monitoring interval of 1s. When activated psi monitor stays active for at least the duration of one tracking window to avoid repeated activations/deactivations when psi signal is bouncing. Notifications to the users are rate-limited to one per tracking window. Signed-off-by: Suren Baghdasaryan <surenb@google.com> Signed-off-by: Johannes Weiner <hannes@cmpxchg.org> (not upstream yet, latest version published at: https://lore.kernel.org/patchwork/patch/1052418/) Bug: 127712811 Bug: 129157727 Test: lmkd in PSI mode Change-Id: I860049d32420485346ad545c4650f990fe0c08e3 Signed-off-by: Suren Baghdasaryan <surenb@google.com> |
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Suren Baghdasaryan
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23c32cf595 |
FROMLIST: psi: track changed states
Introduce changed_states parameter into collect_percpu_times to track the states changed since the last update. Signed-off-by: Suren Baghdasaryan <surenb@google.com> (not upstream yet, latest version published at: https://lore.kernel.org/patchwork/patch/1052420/) Bug: 127712811 Bug: 129157727 Test: lmkd in PSI mode Change-Id: I944b024cd65e8520a57097bf5a3d7b2c01605bd0 Signed-off-by: Suren Baghdasaryan <surenb@google.com> |
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Suren Baghdasaryan
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f270022469 |
FROMLIST: psi: split update_stats into parts
Split update_stats into collect_percpu_times and update_averages for collect_percpu_times to be reused later inside psi monitor. Signed-off-by: Suren Baghdasaryan <surenb@google.com> (not upstream yet, latest version published at: https://lore.kernel.org/patchwork/patch/1052419/) Bug: 127712811 Bug: 129157727 Test: lmkd in PSI mode Change-Id: Ia9cfed8964fd57e41098fca285a2be0252fd5277 Signed-off-by: Suren Baghdasaryan <surenb@google.com> |
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Suren Baghdasaryan
|
c6e18d9458 |
FROMLIST: psi: rename psi fields in preparation for psi trigger addition
Renaming psi_group structure member fields used for calculating psi totals and averages for clear distinction between them and trigger-related fields that will be added next. Signed-off-by: Suren Baghdasaryan <surenb@google.com> (not upstream yet, latest version published at: https://lore.kernel.org/patchwork/patch/1052416/) Bug: 127712811 Bug: 129157727 Test: lmkd in PSI mode Change-Id: I579a60e0915fa8fedaa508357d3d1aefab9428c4 Signed-off-by: Suren Baghdasaryan <surenb@google.com> |
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Suren Baghdasaryan
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18d15b1861 |
FROMLIST: psi: make psi_enable static
psi_enable is not used outside of psi.c, make it static. Suggested-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Suren Baghdasaryan <surenb@google.com> (not upstream yet, latest version published at: https://lore.kernel.org/patchwork/patch/1052415/) Bug: 127712811 Bug: 129157727 Test: lmkd in PSI mode Change-Id: I249c6d2271f93a7975f1622faf2d2b4196b701bc Signed-off-by: Suren Baghdasaryan <surenb@google.com> |
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Suren Baghdasaryan
|
ada57da3b1 |
FROMLIST: psi: introduce state_mask to represent stalled psi states
The psi monitoring patches will need to determine the same states as record_times(). To avoid calculating them twice, maintain a state mask that can be consulted cheaply. Do this in a separate patch to keep the churn in the main feature patch at a minimum. This adds 4-byte state_mask member into psi_group_cpu struct which results in its first cacheline-aligned part becoming 52 bytes long. Add explicit values to enumeration element counters that affect psi_group_cpu struct size. Link: http://lkml.kernel.org/r/20190124211518.244221-4-surenb@google.com Signed-off-by: Suren Baghdasaryan <surenb@google.com> Acked-by: Johannes Weiner <hannes@cmpxchg.org> Cc: Dennis Zhou <dennis@kernel.org> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jens Axboe <axboe@kernel.dk> Cc: Li Zefan <lizefan@huawei.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Tejun Heo <tj@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> (not upstream yet, latest version published at: https://lore.kernel.org/patchwork/patch/1052414/) Bug: 127712811 Bug: 129157727 Test: lmkd in PSI mode Change-Id: I38a1ca3d5c9e6cc3ba39e88c6a9af29ecdc0df5b Signed-off-by: Suren Baghdasaryan <surenb@google.com> |
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Johannes Weiner
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ec350213df |
UPSTREAM: psi: avoid divide-by-zero crash inside virtual machines
We've been seeing hard-to-trigger psi crashes when running inside VM
instances:
divide error: 0000 [#1] SMP PTI
Modules linked in: [...]
CPU: 0 PID: 212 Comm: kworker/0:2 Not tainted 4.16.18-119_fbk9_3817_gfe944c98d695 #119
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 0.0.0 02/06/2015
Workqueue: events psi_clock
RIP: 0010:psi_update_stats+0x270/0x490
RSP: 0018:ffffc90001117e10 EFLAGS: 00010246
RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffff8800a35a13f8
RDX: 0000000000000000 RSI: ffff8800a35a1340 RDI: 0000000000000000
RBP: 0000000000000658 R08: ffff8800a35a1470 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 00000000000f8502
FS: 0000000000000000(0000) GS:ffff88023fc00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fbe370fa000 CR3: 00000000b1e3a000 CR4: 00000000000006f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
psi_clock+0x12/0x50
process_one_work+0x1e0/0x390
worker_thread+0x2b/0x3c0
? rescuer_thread+0x330/0x330
kthread+0x113/0x130
? kthread_create_worker_on_cpu+0x40/0x40
? SyS_exit_group+0x10/0x10
ret_from_fork+0x35/0x40
Code: 48 0f 47 c7 48 01 c2 45 85 e4 48 89 16 0f 85 e6 00 00 00 4c 8b 49 10 4c 8b 51 08 49 69 d9 f2 07 00 00 48 6b c0 64 4c 8b 29 31 d2 <48> f7 f7 49 69 d5 8d 06 00 00 48 89 c5 4c 69 f0 00 98 0b 00 48
The Code-line points to `period` being 0 inside update_stats(), and we
divide by that when calculating that period's pressure percentage.
The elapsed period should never be 0. The reason this can happen is due
to an off-by-one in the idle time / missing period calculation combined
with a coarse sched_clock() in the virtual machine.
The target time for aggregation is advanced into the future on a fixed
grid to prevent clock drift. So when an aggregation runs after some idle
period, we can not just set it to "now + psi_period", but have to
calculate the downtime and advance the target time relative to itself.
However, if the aggregator was disabled exactly one psi_period (ns), we
drop one idle period in the calculation due to a > when we should do >=.
In that case, next_update will be advanced from 'now - psi_period' to
'now' when it should be moved to 'now + psi_period'. The run finishes
with last_update == next_update == sched_clock().
With hardware clocks, this exact nanosecond match isn't likely in the
first place; but if it does happen, the clock will still have moved on and
the period non-zero by the time the worker runs. A pointlessly short
period, but besides the extra work, no harm no foul. However, a slow
sched_clock() like we have on VMs might not have advanced either by the
time the worker runs again. And when we calculate the elapsed period, the
result, our pressure divisor, will be 0. Ouch.
Fix this by correctly handling the situation when the elapsed time between
aggregation runs is precisely two periods, and advance the expiration
timestamp correctly to period into the future.
Link: http://lkml.kernel.org/r/20190214193157.15788-1-hannes@cmpxchg.org
Signed-off-by: Johannes Weiner <hannes@cmpxchg.org>
Reported-by: Łukasz Siudut <lsiudut@fb.com
Reviewed-by: Andrew Morton <akpm@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
(cherry picked from commit
|
||
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Johannes Weiner
|
2a070382c9 |
UPSTREAM: psi: fix aggregation idle shut-off
psi has provisions to shut off the periodic aggregation worker when there is a period of no task activity - and thus no data that needs aggregating. However, while developing psi monitoring, Suren noticed that the aggregation clock currently won't stay shut off for good. Debugging this revealed a flaw in the idle design: an aggregation run will see no task activity and decide to go to sleep; shortly thereafter, the kworker thread that executed the aggregation will go idle and cause a scheduling change, during which the psi callback will kick the !pending worker again. This will ping-pong forever, and is equivalent to having no shut-off logic at all (but with more code!) Fix this by exempting aggregation workers from psi's clock waking logic when the state change is them going to sleep. To do this, tag workers with the last work function they executed, and if in psi we see a worker going to sleep after aggregating psi data, we will not reschedule the aggregation work item. What if the worker is also executing other items before or after? Any psi state times that were incurred by work items preceding the aggregation work will have been collected from the per-cpu buckets during the aggregation itself. If there are work items following the aggregation work, the worker's last_func tag will be overwritten and the aggregator will be kept alive to process this genuine new activity. If the aggregation work is the last thing the worker does, and we decide to go idle, the brief period of non-idle time incurred between the aggregation run and the kworker's dequeue will be stranded in the per-cpu buckets until the clock is woken by later activity. But that should not be a problem. The buckets can hold 4s worth of time, and future activity will wake the clock with a 2s delay, giving us 2s worth of data we can leave behind when disabling aggregation. If it takes a worker more than two seconds to go idle after it finishes its last work item, we likely have bigger problems in the system, and won't notice one sample that was averaged with a bogus per-CPU weight. Link: http://lkml.kernel.org/r/20190116193501.1910-1-hannes@cmpxchg.org Fixes: |
||
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Johannes Weiner
|
3bbcbc8039 |
UPSTREAM: psi: make disabling/enabling easier for vendor kernels
Mel Gorman reports a hackbench regression with psi that would prohibit
shipping the suse kernel with it default-enabled, but he'd still like
users to be able to opt in at little to no cost to others.
With the current combination of CONFIG_PSI and the psi_disabled bool set
from the commandline, this is a challenge. Do the following things to
make it easier:
1. Add a config option CONFIG_PSI_DEFAULT_DISABLED that allows distros
to enable CONFIG_PSI in their kernel but leave the feature disabled
unless a user requests it at boot-time.
To avoid double negatives, rename psi_disabled= to psi=.
2. Make psi_disabled a static branch to eliminate any branch costs
when the feature is disabled.
In terms of numbers before and after this patch, Mel says:
: The following is a comparision using CONFIG_PSI=n as a baseline against
: your patch and a vanilla kernel
:
: 4.20.0-rc4 4.20.0-rc4 4.20.0-rc4
: kconfigdisable-v1r1 vanilla psidisable-v1r1
: Amean 1 1.3100 ( 0.00%) 1.3923 ( -6.28%) 1.3427 ( -2.49%)
: Amean 3 3.8860 ( 0.00%) 4.1230 * -6.10%* 3.8860 ( -0.00%)
: Amean 5 6.8847 ( 0.00%) 8.0390 * -16.77%* 6.7727 ( 1.63%)
: Amean 7 9.9310 ( 0.00%) 10.8367 * -9.12%* 9.9910 ( -0.60%)
: Amean 12 16.6577 ( 0.00%) 18.2363 * -9.48%* 17.1083 ( -2.71%)
: Amean 18 26.5133 ( 0.00%) 27.8833 * -5.17%* 25.7663 ( 2.82%)
: Amean 24 34.3003 ( 0.00%) 34.6830 ( -1.12%) 32.0450 ( 6.58%)
: Amean 30 40.0063 ( 0.00%) 40.5800 ( -1.43%) 41.5087 ( -3.76%)
: Amean 32 40.1407 ( 0.00%) 41.2273 ( -2.71%) 39.9417 ( 0.50%)
:
: It's showing that the vanilla kernel takes a hit (as the bisection
: indicated it would) and that disabling PSI by default is reasonably
: close in terms of performance for this particular workload on this
: particular machine so;
Link: http://lkml.kernel.org/r/20181127165329.GA29728@cmpxchg.org
Signed-off-by: Johannes Weiner <hannes@cmpxchg.org>
Tested-by: Mel Gorman <mgorman@techsingularity.net>
Reported-by: Mel Gorman <mgorman@techsingularity.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
(cherry picked from commit
|
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Olof Johansson
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b822a6da85 |
UPSTREAM: kernel/sched/psi.c: simplify cgroup_move_task()
The existing code triggered an invalid warning about 'rq' possibly being used uninitialized. Instead of doing the silly warning suppression by initializa it to NULL, refactor the code to bail out early instead. Warning was: kernel/sched/psi.c: In function `cgroup_move_task': kernel/sched/psi.c:639:13: warning: `rq' may be used uninitialized in this function [-Wmaybe-uninitialized] Link: http://lkml.kernel.org/r/20181103183339.8669-1-olof@lixom.net Fixes: |
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Johannes Weiner
|
dc9cd29ded |
UPSTREAM: psi: cgroup support
On a system that executes multiple cgrouped jobs and independent
workloads, we don't just care about the health of the overall system, but
also that of individual jobs, so that we can ensure individual job health,
fairness between jobs, or prioritize some jobs over others.
This patch implements pressure stall tracking for cgroups. In kernels
with CONFIG_PSI=y, cgroup2 groups will have cpu.pressure, memory.pressure,
and io.pressure files that track aggregate pressure stall times for only
the tasks inside the cgroup.
Link: http://lkml.kernel.org/r/20180828172258.3185-10-hannes@cmpxchg.org
Signed-off-by: Johannes Weiner <hannes@cmpxchg.org>
Acked-by: Tejun Heo <tj@kernel.org>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Tested-by: Daniel Drake <drake@endlessm.com>
Tested-by: Suren Baghdasaryan <surenb@google.com>
Cc: Christopher Lameter <cl@linux.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Johannes Weiner <jweiner@fb.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Peter Enderborg <peter.enderborg@sony.com>
Cc: Randy Dunlap <rdunlap@infradead.org>
Cc: Shakeel Butt <shakeelb@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>
(cherry picked from commit
|
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Johannes Weiner
|
e550f94252 |
UPSTREAM: psi: pressure stall information for CPU, memory, and IO
When systems are overcommitted and resources become contended, it's hard
to tell exactly the impact this has on workload productivity, or how close
the system is to lockups and OOM kills. In particular, when machines work
multiple jobs concurrently, the impact of overcommit in terms of latency
and throughput on the individual job can be enormous.
In order to maximize hardware utilization without sacrificing individual
job health or risk complete machine lockups, this patch implements a way
to quantify resource pressure in the system.
A kernel built with CONFIG_PSI=y creates files in /proc/pressure/ that
expose the percentage of time the system is stalled on CPU, memory, or IO,
respectively. Stall states are aggregate versions of the per-task delay
accounting delays:
cpu: some tasks are runnable but not executing on a CPU
memory: tasks are reclaiming, or waiting for swapin or thrashing cache
io: tasks are waiting for io completions
These percentages of walltime can be thought of as pressure percentages,
and they give a general sense of system health and productivity loss
incurred by resource overcommit. They can also indicate when the system
is approaching lockup scenarios and OOMs.
To do this, psi keeps track of the task states associated with each CPU
and samples the time they spend in stall states. Every 2 seconds, the
samples are averaged across CPUs - weighted by the CPUs' non-idle time to
eliminate artifacts from unused CPUs - and translated into percentages of
walltime. A running average of those percentages is maintained over 10s,
1m, and 5m periods (similar to the loadaverage).
[hannes@cmpxchg.org: doc fixlet, per Randy]
Link: http://lkml.kernel.org/r/20180828205625.GA14030@cmpxchg.org
[hannes@cmpxchg.org: code optimization]
Link: http://lkml.kernel.org/r/20180907175015.GA8479@cmpxchg.org
[hannes@cmpxchg.org: rename psi_clock() to psi_update_work(), per Peter]
Link: http://lkml.kernel.org/r/20180907145404.GB11088@cmpxchg.org
[hannes@cmpxchg.org: fix build]
Link: http://lkml.kernel.org/r/20180913014222.GA2370@cmpxchg.org
Link: http://lkml.kernel.org/r/20180828172258.3185-9-hannes@cmpxchg.org
Signed-off-by: Johannes Weiner <hannes@cmpxchg.org>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Tested-by: Daniel Drake <drake@endlessm.com>
Tested-by: Suren Baghdasaryan <surenb@google.com>
Cc: Christopher Lameter <cl@linux.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Johannes Weiner <jweiner@fb.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Peter Enderborg <peter.enderborg@sony.com>
Cc: Randy Dunlap <rdunlap@infradead.org>
Cc: Shakeel Butt <shakeelb@google.com>
Cc: Tejun Heo <tj@kernel.org>
Cc: Vinayak Menon <vinmenon@codeaurora.org>
Cc: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
(cherry picked from commit
|
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Johannes Weiner
|
8cd88f5398 |
UPSTREAM: sched: introduce this_rq_lock_irq()
do_sched_yield() disables IRQs, looks up this_rq() and locks it. The next
patch is adding another site with the same pattern, so provide a
convenience function for it.
Link: http://lkml.kernel.org/r/20180828172258.3185-8-hannes@cmpxchg.org
Signed-off-by: Johannes Weiner <hannes@cmpxchg.org>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Tested-by: Suren Baghdasaryan <surenb@google.com>
Tested-by: Daniel Drake <drake@endlessm.com>
Cc: Christopher Lameter <cl@linux.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Johannes Weiner <jweiner@fb.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Peter Enderborg <peter.enderborg@sony.com>
Cc: Randy Dunlap <rdunlap@infradead.org>
Cc: Shakeel Butt <shakeelb@google.com>
Cc: Tejun Heo <tj@kernel.org>
Cc: Vinayak Menon <vinmenon@codeaurora.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
(cherry picked from commit
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Johannes Weiner
|
cdda3cf652 |
UPSTREAM: sched: sched.h: make rq locking and clock functions available in stats.h
kernel/sched/sched.h includes "stats.h" half-way through the file. The
next patch introduces users of sched.h's rq locking functions and
update_rq_clock() in kernel/sched/stats.h. Move those definitions up in
the file so they are available in stats.h.
Link: http://lkml.kernel.org/r/20180828172258.3185-7-hannes@cmpxchg.org
Signed-off-by: Johannes Weiner <hannes@cmpxchg.org>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Tested-by: Suren Baghdasaryan <surenb@google.com>
Tested-by: Daniel Drake <drake@endlessm.com>
Cc: Christopher Lameter <cl@linux.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Johannes Weiner <jweiner@fb.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Peter Enderborg <peter.enderborg@sony.com>
Cc: Randy Dunlap <rdunlap@infradead.org>
Cc: Shakeel Butt <shakeelb@google.com>
Cc: Tejun Heo <tj@kernel.org>
Cc: Vinayak Menon <vinmenon@codeaurora.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
(cherry picked from commit
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Johannes Weiner
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4c9c09affa |
UPSTREAM: sched: loadavg: make calc_load_n() public
It's going to be used in a later patch. Keep the churn separate.
Link: http://lkml.kernel.org/r/20180828172258.3185-6-hannes@cmpxchg.org
Signed-off-by: Johannes Weiner <hannes@cmpxchg.org>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Tested-by: Suren Baghdasaryan <surenb@google.com>
Tested-by: Daniel Drake <drake@endlessm.com>
Cc: Christopher Lameter <cl@linux.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Johannes Weiner <jweiner@fb.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Peter Enderborg <peter.enderborg@sony.com>
Cc: Randy Dunlap <rdunlap@infradead.org>
Cc: Shakeel Butt <shakeelb@google.com>
Cc: Tejun Heo <tj@kernel.org>
Cc: Vinayak Menon <vinmenon@codeaurora.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
(cherry picked from commit
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Johannes Weiner
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2ba18b41d3 |
BACKPORT: sched: loadavg: consolidate LOAD_INT, LOAD_FRAC, CALC_LOAD
There are several definitions of those functions/macros in places that
mess with fixed-point load averages. Provide an official version.
[akpm@linux-foundation.org: fix missed conversion in block/blk-iolatency.c]
Link: http://lkml.kernel.org/r/20180828172258.3185-5-hannes@cmpxchg.org
Signed-off-by: Johannes Weiner <hannes@cmpxchg.org>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Tested-by: Suren Baghdasaryan <surenb@google.com>
Tested-by: Daniel Drake <drake@endlessm.com>
Cc: Christopher Lameter <cl@linux.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Johannes Weiner <jweiner@fb.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Peter Enderborg <peter.enderborg@sony.com>
Cc: Randy Dunlap <rdunlap@infradead.org>
Cc: Shakeel Butt <shakeelb@google.com>
Cc: Tejun Heo <tj@kernel.org>
Cc: Vinayak Menon <vinmenon@codeaurora.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
(cherry picked from commit
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Connor O'Brien
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406d53f0c7 |
ANDROID: cpufreq: track per-task time in state
Add time in state data to task structs, and create
/proc/<pid>/time_in_state files to show how long each individual task
has run at each frequency.
Create a CONFIG_CPU_FREQ_TIMES option to enable/disable this tracking.
Bug: 72339335
Bug: 127641090
Test: Read /proc/<pid>/time_in_state
Change-Id: Ia6456754f4cb1e83b2bc35efa8fbe9f8696febc8
Signed-off-by: Connor O'Brien <connoro@google.com>
[astrachan: Folded the following changes into this patch:
a6d3de6a7fba ("ANDROID: Reduce use of #ifdef CONFIG_CPU_FREQ_TIMES")
b89ada5d9c09 ("ANDROID: Fix massive cpufreq_times memory leaks")]
Signed-off-by: Alistair Strachan <astrachan@google.com>
|
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Greg Kroah-Hartman
|
36d178b3bc |
This is the 4.19.27 stable release
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genirq/matrix: Improve target CPU selection for managed interrupts. mac80211: Change default tx_sk_pacing_shift to 7 scsi: libsas: Fix rphy phy_identifier for PHYs with end devices attached drm/msm: Unblock writer if reader closes file ASoC: Intel: Haswell/Broadwell: fix setting for .dynamic field ALSA: compress: prevent potential divide by zero bugs ASoC: Variable "val" in function rt274_i2c_probe() could be uninitialized clk: tegra: dfll: Fix a potential Oop in remove() clk: sysfs: fix invalid JSON in clk_dump clk: vc5: Abort clock configuration without upstream clock thermal: int340x_thermal: Fix a NULL vs IS_ERR() check usb: dwc3: gadget: synchronize_irq dwc irq in suspend usb: dwc3: gadget: Fix the uninitialized link_state when udc starts usb: gadget: Potential NULL dereference on allocation error selftests: rtc: rtctest: fix alarm tests selftests: rtc: rtctest: add alarm test on minute boundary genirq: Make sure the initial affinity is not empty x86/mm/mem_encrypt: Fix erroneous sizeof() ASoC: rt5682: Fix PLL source register definitions ASoC: dapm: change snprintf to scnprintf for possible overflow ASoC: imx-audmux: change snprintf to scnprintf for possible overflow selftests/vm/gup_benchmark.c: match gup struct to kernel phy: ath79-usb: Fix the power on error path phy: ath79-usb: Fix the main reset name to match the DT binding selftests: seccomp: use LDLIBS instead of LDFLAGS selftests: gpio-mockup-chardev: Check asprintf() for error irqchip/gic-v3-mbi: Fix uninitialized mbi_lock ARC: fix __ffs return value to avoid build warnings ARC: show_regs: lockdep: avoid page allocator... drivers: thermal: int340x_thermal: Fix sysfs race condition staging: rtl8723bs: Fix build error with Clang when inlining is disabled mac80211: fix miscounting of ttl-dropped frames sched/wait: Fix rcuwait_wake_up() ordering sched/wake_q: Fix wakeup ordering for wake_q futex: Fix (possible) missed wakeup locking/rwsem: Fix (possible) missed wakeup drm/amd/powerplay: OD setting fix on Vega10 tty: serial: qcom_geni_serial: Allow mctrl when flow control is disabled serial: fsl_lpuart: fix maximum acceptable baud rate with over-sampling drm/sun4i: hdmi: Fix usage of TMDS clock staging: android: ion: Support cpu access during dma_buf_detach direct-io: allow direct writes to empty inodes writeback: synchronize sync(2) against cgroup writeback membership switches scsi: lpfc: nvme: avoid hang / use-after-free when destroying localport scsi: lpfc: nvmet: avoid hang / use-after-free when destroying targetport scsi: csiostor: fix NULL pointer dereference in csio_vport_set_state() net: altera_tse: fix connect_local_phy error path hv_netvsc: Fix ethtool change hash key error hv_netvsc: Refactor assignments of struct netvsc_device_info hv_netvsc: Fix hash key value reset after other ops nvme-rdma: fix timeout handler nvme-multipath: drop optimization for static ANA group IDs drm/msm: Fix A6XX support for opp-level net: usb: asix: ax88772_bind return error when hw_reset fail net: dev_is_mac_header_xmit() true for ARPHRD_RAWIP ibmveth: Do not process frames after calling napi_reschedule mac80211: don't initiate TDLS connection if station is not associated to AP mac80211: Add attribute aligned(2) to struct 'action' cfg80211: extend range deviation for DMG svm: Fix AVIC incomplete IPI emulation KVM: nSVM: clear events pending from svm_complete_interrupts() when exiting to L1 kvm: selftests: Fix region overlap check in kvm_util mmc: spi: Fix card detection during probe mmc: tmio_mmc_core: don't claim spurious interrupts mmc: tmio: fix access width of Block Count Register mmc: core: Fix NULL ptr crash from mmc_should_fail_request mmc: cqhci: fix space allocated for transfer descriptor mmc: cqhci: Fix a tiny potential memory leak on error condition mmc: sdhci-esdhc-imx: correct the fix of ERR004536 mm: enforce min addr even if capable() in expand_downwards() drm: Block fb changes for async plane updates hugetlbfs: fix races and page leaks during migration MIPS: fix truncation in __cmpxchg_small for short values MIPS: BCM63XX: provide DMA masks for ethernet devices MIPS: eBPF: Fix icache flush end address x86/uaccess: Don't leak the AC flag into __put_user() value evaluation Linux 4.19.27 Signed-off-by: Greg Kroah-Hartman <gregkh@google.com> |
||
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Peter Zijlstra
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653a1dbcb0 |
sched/wake_q: Fix wakeup ordering for wake_q
[ Upstream commit
|