lineage-20.0
533 Commits
Author | SHA1 | Message | Date | |
---|---|---|---|---|
Srinivasarao P
|
5ca1f513f7 |
Merge android-4.19-stable.149 (9ce79d9 ) into msm-4.19
* refs/heads/tmp-9ce79d9: Linux 4.19.149 KVM: arm64: Assume write fault on S1PTW permission fault on instruction fetch ata: sata_mv, avoid trigerrable BUG_ON ata: make qc_prep return ata_completion_errors ata: define AC_ERR_OK kprobes: Fix compiler warning for !CONFIG_KPROBES_ON_FTRACE s390/zcrypt: Fix ZCRYPT_PERDEV_REQCNT ioctl mm, THP, swap: fix allocating cluster for swapfile by mistake kprobes: Fix to check probe enabled before disarm_kprobe_ftrace() s390/dasd: Fix zero write for FBA devices tracing: fix double free KVM: SVM: Add a dedicated INVD intercept routine KVM: x86: Reset MMU context if guest toggles CR4.SMAP or CR4.PKE MIPS: Add the missing 'CPU_1074K' into __get_cpu_type() regmap: fix page selection for noinc reads ALSA: asihpi: fix iounmap in error handler bpf: Fix a rcu warning for bpffs map pretty-print batman-adv: mcast: fix duplicate mcast packets from BLA backbone to mesh batman-adv: mcast: fix duplicate mcast packets in BLA backbone from mesh batman-adv: Add missing include for in_interrupt() drm/sun4i: sun8i-csc: Secondary CSC register correction net: qed: RDMA personality shouldn't fail VF load drm/vc4/vc4_hdmi: fill ASoC card owner bpf: Fix clobbering of r2 in bpf_gen_ld_abs mac802154: tx: fix use-after-free batman-adv: mcast/TT: fix wrongly dropped or rerouted packets atm: eni: fix the missed pci_disable_device() for eni_init_one() batman-adv: bla: fix type misuse for backbone_gw hash indexing mwifiex: Increase AES key storage size to 256 bits clocksource/drivers/h8300_timer8: Fix wrong return value in h8300_8timer_init() ieee802154/adf7242: check status of adf7242_read_reg ieee802154: fix one possible memleak in ca8210_dev_com_init objtool: Fix noreturn detection for ignored functions i2c: core: Call i2c_acpi_install_space_handler() before i2c_acpi_register_devices() drm/amdkfd: fix a memory leak issue lockdep: fix order in trace_hardirqs_off_caller() s390/init: add missing __init annotations RISC-V: Take text_mutex in ftrace_init_nop() ASoC: Intel: bytcr_rt5640: Add quirk for MPMAN Converter9 2-in-1 ASoC: wm8994: Ensure the device is resumed in wm89xx_mic_detect functions ASoC: wm8994: Skip setting of the WM8994_MICBIAS register for WM1811 nvme: explicitly update mpath disk capacity on revalidation net: openvswitch: use div_u64() for 64-by-32 divisions perf parse-events: Use strcmp() to compare the PMU name ubi: fastmap: Free unused fastmap anchor peb during detach btrfs: qgroup: fix data leak caused by race between writeback and truncate vfio/pci: fix racy on error and request eventfd ctx selftests/x86/syscall_nt: Clear weird flags after each test scsi: libfc: Skip additional kref updating work event scsi: libfc: Handling of extra kref nvme: fix possible deadlock when I/O is blocked cifs: Fix double add page to memcg when cifs_readpages vfio/pci: Clear error and request eventfd ctx after releasing x86/speculation/mds: Mark mds_user_clear_cpu_buffers() __always_inline mtd: parser: cmdline: Support MTD names containing one or more colons rapidio: avoid data race between file operation callbacks and mport_cdev_add(). mm/swap_state: fix a data race in swapin_nr_pages ceph: fix potential race in ceph_check_caps PCI: tegra: Fix runtime PM imbalance on error mtd: rawnand: omap_elm: Fix runtime PM imbalance on error wlcore: fix runtime pm imbalance in wlcore_regdomain_config wlcore: fix runtime pm imbalance in wl1271_tx_work ASoC: img-i2s-out: Fix runtime PM imbalance on error perf kcore_copy: Fix module map when there are no modules loaded perf metricgroup: Free metric_events on error perf util: Fix memory leak of prefix_if_not_in perf stat: Fix duration_time value for higher intervals perf trace: Fix the selection for architectures to generate the errno name tables perf evsel: Fix 2 memory leaks vfio/pci: fix memory leaks of eventfd ctx btrfs: don't force read-only after error in drop snapshot usb: dwc3: Increase timeout for CmdAct cleared by device controller printk: handle blank console arguments passed in. drm/nouveau/dispnv50: fix runtime pm imbalance on error drm/nouveau: fix runtime pm imbalance on error drm/nouveau/debugfs: fix runtime pm imbalance on error e1000: Do not perform reset in reset_task if we are already down arm64/cpufeature: Drop TraceFilt feature exposure from ID_DFR0 register scsi: cxlflash: Fix error return code in cxlflash_probe() USB: EHCI: ehci-mv: fix less than zero comparison of an unsigned int fuse: don't check refcount after stealing page powerpc/traps: Make unrecoverable NMIs die instead of panic ALSA: hda: Fix potential race in unsol event handler tty: serial: samsung: Correct clock selection logic tipc: fix memory leak in service subscripting USB: EHCI: ehci-mv: fix error handling in mv_ehci_probe() Bluetooth: Handle Inquiry Cancel error after Inquiry Complete phy: samsung: s5pv210-usb2: Add delay after reset power: supply: max17040: Correct voltage reading perf mem2node: Avoid double free related to realloc atm: fix a memory leak of vcc->user_back dt-bindings: sound: wm8994: Correct required supplies based on actual implementaion arm64: cpufeature: Relax checks for AArch32 support at EL[0-2] sparc64: vcc: Fix error return code in vcc_probe() staging:r8188eu: avoid skb_clone for amsdu to msdu conversion scsi: aacraid: Fix error handling paths in aac_probe_one() net: openvswitch: use u64 for meter bucket KVM: arm64: vgic-its: Fix memory leak on the error path of vgic_add_lpi() drivers: char: tlclk.c: Avoid data race between init and interrupt handler bdev: Reduce time holding bd_mutex in sync in blkdev_close() KVM: Remove CREATE_IRQCHIP/SET_PIT2 race serial: uartps: Wait for tx_empty in console setup scsi: qedi: Fix termination timeouts in session logout mm/mmap.c: initialize align_offset explicitly for vm_unmapped_area nvmet-rdma: fix double free of rdma queue mm/vmscan.c: fix data races using kswapd_classzone_idx mm/filemap.c: clear page error before actual read mm/kmemleak.c: use address-of operator on section symbols NFS: Fix races nfs_page_group_destroy() vs nfs_destroy_unlinked_subrequests() PCI: pciehp: Fix MSI interrupt race ALSA: usb-audio: Fix case when USB MIDI interface has more than one extra endpoint descriptor ubifs: Fix out-of-bounds memory access caused by abnormal value of node_len PCI: Use ioremap(), not phys_to_virt() for platform ROM svcrdma: Fix leak of transport addresses SUNRPC: Fix a potential buffer overflow in 'svc_print_xprts()' scsi: hpsa: correct race condition in offload enabled RDMA/rxe: Set sys_image_guid to be aligned with HW IB devices nvme: Fix controller creation races with teardown flow nvme-multipath: do not reset on unknown status tools: gpio-hammer: Avoid potential overflow in main cpufreq: powernv: Fix frame-size-overflow in powernv_cpufreq_work_fn perf cpumap: Fix snprintf overflow check serial: 8250: 8250_omap: Terminate DMA before pushing data on RX timeout serial: 8250_omap: Fix sleeping function called from invalid context during probe serial: 8250_port: Don't service RX FIFO if throttled perf parse-events: Fix 3 use after frees found with clang ASAN thermal: rcar_thermal: Handle probe error gracefully tracing: Use address-of operator on section symbols drm/msm/a5xx: Always set an OPP supported hardware value drm/msm: fix leaks if initialization fails KVM: PPC: Book3S HV: Treat TM-related invalid form instructions on P9 like the valid ones RDMA/cm: Remove a race freeing timewait_info nfsd: Don't add locks to closed or closing open stateids rtc: ds1374: fix possible race condition rtc: sa1100: fix possible race condition tpm: ibmvtpm: Wait for buffer to be set before proceeding ext4: mark block bitmap corrupted when found instead of BUGON xfs: mark dir corrupt when lookup-by-hash fails xfs: don't ever return a stale pointer from __xfs_dir3_free_read media: tda10071: fix unsigned sign extension overflow Bluetooth: L2CAP: handle l2cap config request during open state scsi: aacraid: Disabling TM path and only processing IOP reset ath10k: use kzalloc to read for ath10k_sdio_hif_diag_read drm/amd/display: Stop if retimer is not available drm/amdgpu: increase atombios cmd timeout mm: avoid data corruption on CoW fault into PFN-mapped VMA perf jevents: Fix leak of mapfile memory ext4: fix a data race at inode->i_disksize timekeeping: Prevent 32bit truncation in scale64_check_overflow() Bluetooth: guard against controllers sending zero'd events media: go7007: Fix URB type for interrupt handling bus: hisi_lpc: Fixup IO ports addresses to avoid use-after-free in host removal random: fix data races at timer_rand_state firmware: arm_sdei: Use cpus_read_lock() to avoid races with cpuhp drm/amd/display: dal_ddc_i2c_payloads_create can fail causing panic dmaengine: tegra-apb: Prevent race conditions on channel's freeing dmaengine: stm32-dma: use vchan_terminate_vdesc() in .terminate_all bpf: Remove recursion prevention from rcu free callback x86/pkeys: Add check for pkey "overflow" media: staging/imx: Missing assignment in imx_media_capture_device_register() dmaengine: stm32-mdma: use vchan_terminate_vdesc() in .terminate_all KVM: x86: fix incorrect comparison in trace event RDMA/rxe: Fix configuration of atomic queue pair attributes perf test: Fix test trace+probe_vfs_getname.sh on s390 ALSA: usb-audio: Don't create a mixer element with bogus volume range mt76: clear skb pointers from rx aggregation reorder buffer during cleanup crypto: chelsio - This fixes the kernel panic which occurs during a libkcapi test clk: stratix10: use do_div() for 64-bit calculation drm/omap: fix possible object reference leak scsi: lpfc: Fix coverity errors in fmdi attribute handling scsi: lpfc: Fix RQ buffer leakage when no IOCBs available selinux: sel_avc_get_stat_idx should increase position index audit: CONFIG_CHANGE don't log internal bookkeeping as an event skbuff: fix a data race in skb_queue_len() ALSA: hda: Clear RIRB status before reading WP KVM: fix overflow of zero page refcount with ksm running Bluetooth: prefetch channel before killing sock mm: pagewalk: fix termination condition in walk_pte_range() mm/swapfile.c: swap_next should increase position index Bluetooth: Fix refcount use-after-free issue tools/power/x86/intel_pstate_tracer: changes for python 3 compatibility selftests/ftrace: fix glob selftest ceph: ensure we have a new cap before continuing in fill_inode ar5523: Add USB ID of SMCWUSBT-G2 wireless adapter ARM: 8948/1: Prevent OOB access in stacktrace tracing: Set kernel_stack's caller size properly Bluetooth: btrtl: Use kvmalloc for FW allocations powerpc/eeh: Only dump stack once if an MMIO loop is detected s390/cpum_sf: Use kzalloc and minor changes dmaengine: zynqmp_dma: fix burst length configuration scsi: ufs: Fix a race condition in the tracing code scsi: ufs: Make ufshcd_add_command_trace() easier to read ACPI: EC: Reference count query handlers under lock sctp: move trace_sctp_probe_path into sctp_outq_sack media: ti-vpe: cal: Restrict DMA to avoid memory corruption seqlock: Require WRITE_ONCE surrounding raw_seqcount_barrier ipv6_route_seq_next should increase position index rt_cpu_seq_next should increase position index neigh_stat_seq_next() should increase position index xfs: fix log reservation overflows when allocating large rt extents KVM: arm/arm64: vgic: Fix potential double free dist->spis in __kvm_vgic_destroy() kernel/sys.c: avoid copying possible padding bytes in copy_to_user ASoC: max98090: remove msleep in PLL unlocked workaround CIFS: Properly process SMB3 lease breaks debugfs: Fix !DEBUG_FS debugfs_create_automount scsi: pm80xx: Cleanup command when a reset times out gfs2: clean up iopen glock mess in gfs2_create_inode mmc: core: Fix size overflow for mmc partitions ubi: Fix producing anchor PEBs RDMA/iw_cgxb4: Fix an error handling path in 'c4iw_connect()' xfs: fix attr leaf header freemap.size underflow fix dget_parent() fastpath race RDMA/i40iw: Fix potential use after free RDMA/qedr: Fix potential use after free dmaengine: mediatek: hsdma_probe: fixed a memory leak when devm_request_irq fails bcache: fix a lost wake-up problem caused by mca_cannibalize_lock tracing: Adding NULL checks for trace_array descriptor pointer tpm_crb: fix fTPM on AMD Zen+ CPUs drm/amdgpu/powerplay/smu7: fix AVFS handling with custom powerplay table mfd: mfd-core: Protect against NULL call-back function pointer mtd: cfi_cmdset_0002: don't free cfi->cfiq in error path of cfi_amdstd_setup() drm/amdgpu/powerplay: fix AVFS handling with custom powerplay table clk/ti/adpll: allocate room for terminating null net: silence data-races on sk_backlog.tail scsi: lpfc: Fix kernel crash at lpfc_nvme_info_show during remote port bounce scsi: fnic: fix use after free PM / devfreq: tegra30: Fix integer overflow on CPU's freq max out leds: mlxreg: Fix possible buffer overflow lib/string.c: implement stpcpy ALSA: hda/realtek: Enable front panel headset LED on Lenovo ThinkStation P520 ALSA: hda/realtek - Couldn't detect Mic if booting with headset plugged ALSA: usb-audio: Add delay quirk for H570e USB headsets x86/ioapic: Unbreak check_timer() arch/x86/lib/usercopy_64.c: fix __copy_user_flushcache() cache writeback media: smiapp: Fix error handling at NVM reading ASoC: kirkwood: fix IRQ error handling gma/gma500: fix a memory disclosure bug due to uninitialized bytes m68k: q40: Fix info-leak in rtc_ioctl scsi: aacraid: fix illegal IO beyond last LBA mm: fix double page fault on arm64 if PTE_AF is cleared ath10k: fix memory leak for tpc_stats_final ath10k: fix array out-of-bounds access dma-fence: Serialise signal enabling (dma_fence_enable_sw_signaling) media: mc-device.c: fix memleak in media_device_register_entity selinux: allow labeling before policy is loaded ANDROID: GKI: prevent removal of monitored symbols ANDROID: Refresh ABI.xmls with libabigail 1.8.0-98bbf30d Linux 4.19.148 serial: 8250: Avoid error message on reprobe tcp_bbr: adapt cwnd based on ack aggregation estimation tcp_bbr: refactor bbr_target_cwnd() for general inflight provisioning mm: memcg: fix memcg reclaim soft lockup kbuild: support LLVM=1 to switch the default tools to Clang/LLVM kbuild: replace AS=clang with LLVM_IAS=1 kbuild: remove AS variable x86/boot: kbuild: allow readelf executable to be specified net: wan: wanxl: use $(M68KCC) instead of $(M68KAS) for rebuilding firmware net: wan: wanxl: use allow to pass CROSS_COMPILE_M68k for rebuilding firmware Documentation/llvm: fix the name of llvm-size Documentation/llvm: add documentation on building w/ Clang/LLVM kbuild: add OBJSIZE variable for the size tool MAINTAINERS: add CLANG/LLVM BUILD SUPPORT info ipv4: Update exception handling for multipath routes via same device net: add __must_check to skb_put_padto() net: qrtr: check skb_put_padto() return value net: phy: Avoid NPD upon phy_detach() when driver is unbound bnxt_en: Protect bnxt_set_eee() and bnxt_set_pauseparam() with mutex. bnxt_en: return proper error codes in bnxt_show_temp tipc: use skb_unshare() instead in tipc_buf_append() tipc: fix shutdown() of connection oriented socket tipc: Fix memory leak in tipc_group_create_member() nfp: use correct define to return NONE fec net: sch_generic: aviod concurrent reset and enqueue op for lockless qdisc net: ipv6: fix kconfig dependency warning for IPV6_SEG6_HMAC net: dsa: rtl8366: Properly clear member config net: DCB: Validate DCB_ATTR_DCB_BUFFER argument ipv6: avoid lockdep issue in fib6_del() ip: fix tos reflection in ack and reset packets hdlc_ppp: add range checks in ppp_cp_parse_cr() geneve: add transport ports in route lookup for geneve cxgb4: Fix offset when clearing filter byte counters mm/thp: fix __split_huge_pmd_locked() for migration PMD kprobes: fix kill kprobe which has been marked as gone KVM: fix memory leak in kvm_io_bus_unregister_dev() af_key: pfkey_dump needs parameter validation ANDROID: drop KERNEL_DIR setting in build.config.common Linux 4.19.147 x86/defconfig: Enable CONFIG_USB_XHCI_HCD=y powerpc/dma: Fix dma_map_ops::get_required_mask ehci-hcd: Move include to keep CRC stable x86/boot/compressed: Disable relocation relaxation serial: 8250_pci: Add Realtek 816a and 816b Input: i8042 - add Entroware Proteus EL07R4 to nomux and reset lists Input: trackpoint - add new trackpoint variant IDs percpu: fix first chunk size calculation for populated bitmap Revert "ALSA: hda - Fix silent audio output and corrupted input on MSI X570-A PRO" i2c: i801: Fix resume bug usblp: fix race between disconnect() and read() USB: UAS: fix disconnect by unplugging a hub USB: quirks: Add USB_QUIRK_IGNORE_REMOTE_WAKEUP quirk for BYD zhaoxin notebook drm/mediatek: Add missing put_device() call in mtk_hdmi_dt_parse_pdata() drm/mediatek: Add exception handing in mtk_drm_probe() if component init fail MIPS: SNI: Fix spurious interrupts fbcon: Fix user font detection test at fbcon_resize(). perf test: Free formats for perf pmu parse test MIPS: SNI: Fix MIPS_L1_CACHE_SHIFT perf test: Fix the "signal" test inline assembly Drivers: hv: vmbus: Add timeout to vmbus_wait_for_unload ASoC: qcom: Set card->owner to avoid warnings clk: rockchip: Fix initialization of mux_pll_src_4plls_p clk: davinci: Use the correct size when allocating memory KVM: MIPS: Change the definition of kvm type spi: Fix memory leak on splited transfers i2c: algo: pca: Reapply i2c bus settings after reset f2fs: Return EOF on unaligned end of file DIO read f2fs: fix indefinite loop scanning for free nid nvme-rdma: cancel async events before freeing event struct nvme-fc: cancel async events before freeing event struct openrisc: Fix cache API compile issue when not inlining rapidio: Replace 'select' DMAENGINES 'with depends on' SUNRPC: stop printk reading past end of string NFS: Zero-stateid SETATTR should first return delegation spi: spi-loopback-test: Fix out-of-bounds read regulator: pwm: Fix machine constraints application scsi: lpfc: Fix FLOGI/PLOGI receive race condition in pt2pt discovery scsi: libfc: Fix for double free() scsi: pm8001: Fix memleak in pm8001_exec_internal_task_abort NFSv4.1 handle ERR_DELAY error reclaiming locking state on delegation recall hv_netvsc: Remove "unlikely" from netvsc_select_queue net: handle the return value of pskb_carve_frag_list() correctly RDMA/bnxt_re: Restrict the max_gids to 256 gfs2: initialize transaction tr_ailX_lists earlier scsi: qla2xxx: Reduce holding sess_lock to prevent CPU lock-up scsi: qla2xxx: Move rport registration out of internal work_list scsi: qla2xxx: Update rscn_rcvd field to more meaningful scan_needed dsa: Allow forwarding of redirected IGMP traffic ANDROID: Refresh ABI.xmls with libabigail 1.8.0-1dca710a ANDROID: KMI symbol lists: migrate section name Conflicts: Documentation/devicetree/bindings Documentation/devicetree/bindings/sound/wm8994.txt Makefile drivers/scsi/ufs/ufshcd.c drivers/usb/dwc3/gadget.c mm/memory.c net/qrtr/qrtr.c Change-Id: I51d2167f5b2aca5ff0e50a5399d6c13b7a9a7e64 Signed-off-by: Srinivasarao P <spathi@codeaurora.org> |
||
Greg Kroah-Hartman
|
9ce79d9bed |
This is the 4.19.149 stable release
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media_device_register_entity dma-fence: Serialise signal enabling (dma_fence_enable_sw_signaling) ath10k: fix array out-of-bounds access ath10k: fix memory leak for tpc_stats_final mm: fix double page fault on arm64 if PTE_AF is cleared scsi: aacraid: fix illegal IO beyond last LBA m68k: q40: Fix info-leak in rtc_ioctl gma/gma500: fix a memory disclosure bug due to uninitialized bytes ASoC: kirkwood: fix IRQ error handling media: smiapp: Fix error handling at NVM reading arch/x86/lib/usercopy_64.c: fix __copy_user_flushcache() cache writeback x86/ioapic: Unbreak check_timer() ALSA: usb-audio: Add delay quirk for H570e USB headsets ALSA: hda/realtek - Couldn't detect Mic if booting with headset plugged ALSA: hda/realtek: Enable front panel headset LED on Lenovo ThinkStation P520 lib/string.c: implement stpcpy leds: mlxreg: Fix possible buffer overflow PM / devfreq: tegra30: Fix integer overflow on CPU's freq max out scsi: fnic: fix use after free scsi: lpfc: Fix kernel crash at lpfc_nvme_info_show during remote port bounce net: silence data-races on sk_backlog.tail clk/ti/adpll: allocate room for terminating null drm/amdgpu/powerplay: fix AVFS handling with custom powerplay table mtd: cfi_cmdset_0002: don't free cfi->cfiq in error path of cfi_amdstd_setup() mfd: mfd-core: Protect against NULL call-back function pointer drm/amdgpu/powerplay/smu7: fix AVFS handling with custom powerplay table tpm_crb: fix fTPM on AMD Zen+ CPUs tracing: Adding NULL checks for trace_array descriptor pointer bcache: fix a lost wake-up problem caused by mca_cannibalize_lock dmaengine: mediatek: hsdma_probe: fixed a memory leak when devm_request_irq fails RDMA/qedr: Fix potential use after free RDMA/i40iw: Fix potential use after free fix dget_parent() fastpath race xfs: fix attr leaf header freemap.size underflow RDMA/iw_cgxb4: Fix an error handling path in 'c4iw_connect()' ubi: Fix producing anchor PEBs mmc: core: Fix size overflow for mmc partitions gfs2: clean up iopen glock mess in gfs2_create_inode scsi: pm80xx: Cleanup command when a reset times out debugfs: Fix !DEBUG_FS debugfs_create_automount CIFS: Properly process SMB3 lease breaks ASoC: max98090: remove msleep in PLL unlocked workaround kernel/sys.c: avoid copying possible padding bytes in copy_to_user KVM: arm/arm64: vgic: Fix potential double free dist->spis in __kvm_vgic_destroy() xfs: fix log reservation overflows when allocating large rt extents neigh_stat_seq_next() should increase position index rt_cpu_seq_next should increase position index ipv6_route_seq_next should increase position index seqlock: Require WRITE_ONCE surrounding raw_seqcount_barrier media: ti-vpe: cal: Restrict DMA to avoid memory corruption sctp: move trace_sctp_probe_path into sctp_outq_sack ACPI: EC: Reference count query handlers under lock scsi: ufs: Make ufshcd_add_command_trace() easier to read scsi: ufs: Fix a race condition in the tracing code dmaengine: zynqmp_dma: fix burst length configuration s390/cpum_sf: Use kzalloc and minor changes powerpc/eeh: Only dump stack once if an MMIO loop is detected Bluetooth: btrtl: Use kvmalloc for FW allocations tracing: Set kernel_stack's caller size properly ARM: 8948/1: Prevent OOB access in stacktrace ar5523: Add USB ID of SMCWUSBT-G2 wireless adapter ceph: ensure we have a new cap before continuing in fill_inode selftests/ftrace: fix glob selftest tools/power/x86/intel_pstate_tracer: changes for python 3 compatibility Bluetooth: Fix refcount use-after-free issue mm/swapfile.c: swap_next should increase position index mm: pagewalk: fix termination condition in walk_pte_range() Bluetooth: prefetch channel before killing sock KVM: fix overflow of zero page refcount with ksm running ALSA: hda: Clear RIRB status before reading WP skbuff: fix a data race in skb_queue_len() audit: CONFIG_CHANGE don't log internal bookkeeping as an event selinux: sel_avc_get_stat_idx should increase position index scsi: lpfc: Fix RQ buffer leakage when no IOCBs available scsi: lpfc: Fix coverity errors in fmdi attribute handling drm/omap: fix possible object reference leak clk: stratix10: use do_div() for 64-bit calculation crypto: chelsio - This fixes the kernel panic which occurs during a libkcapi test mt76: clear skb pointers from rx aggregation reorder buffer during cleanup ALSA: usb-audio: Don't create a mixer element with bogus volume range perf test: Fix test trace+probe_vfs_getname.sh on s390 RDMA/rxe: Fix configuration of atomic queue pair attributes KVM: x86: fix incorrect comparison in trace event dmaengine: stm32-mdma: use vchan_terminate_vdesc() in .terminate_all media: staging/imx: Missing assignment in imx_media_capture_device_register() x86/pkeys: Add check for pkey "overflow" bpf: Remove recursion prevention from rcu free callback dmaengine: stm32-dma: use vchan_terminate_vdesc() in .terminate_all dmaengine: tegra-apb: Prevent race conditions on channel's freeing drm/amd/display: dal_ddc_i2c_payloads_create can fail causing panic firmware: arm_sdei: Use cpus_read_lock() to avoid races with cpuhp random: fix data races at timer_rand_state bus: hisi_lpc: Fixup IO ports addresses to avoid use-after-free in host removal media: go7007: Fix URB type for interrupt handling Bluetooth: guard against controllers sending zero'd events timekeeping: Prevent 32bit truncation in scale64_check_overflow() ext4: fix a data race at inode->i_disksize perf jevents: Fix leak of mapfile memory mm: avoid data corruption on CoW fault into PFN-mapped VMA drm/amdgpu: increase atombios cmd timeout drm/amd/display: Stop if retimer is not available ath10k: use kzalloc to read for ath10k_sdio_hif_diag_read scsi: aacraid: Disabling TM path and only processing IOP reset Bluetooth: L2CAP: handle l2cap config request during open state media: tda10071: fix unsigned sign extension overflow xfs: don't ever return a stale pointer from __xfs_dir3_free_read xfs: mark dir corrupt when lookup-by-hash fails ext4: mark block bitmap corrupted when found instead of BUGON tpm: ibmvtpm: Wait for buffer to be set before proceeding rtc: sa1100: fix possible race condition rtc: ds1374: fix possible race condition nfsd: Don't add locks to closed or closing open stateids RDMA/cm: Remove a race freeing timewait_info KVM: PPC: Book3S HV: Treat TM-related invalid form instructions on P9 like the valid ones drm/msm: fix leaks if initialization fails drm/msm/a5xx: Always set an OPP supported hardware value tracing: Use address-of operator on section symbols thermal: rcar_thermal: Handle probe error gracefully perf parse-events: Fix 3 use after frees found with clang ASAN serial: 8250_port: Don't service RX FIFO if throttled serial: 8250_omap: Fix sleeping function called from invalid context during probe serial: 8250: 8250_omap: Terminate DMA before pushing data on RX timeout perf cpumap: Fix snprintf overflow check cpufreq: powernv: Fix frame-size-overflow in powernv_cpufreq_work_fn tools: gpio-hammer: Avoid potential overflow in main nvme-multipath: do not reset on unknown status nvme: Fix controller creation races with teardown flow RDMA/rxe: Set sys_image_guid to be aligned with HW IB devices scsi: hpsa: correct race condition in offload enabled SUNRPC: Fix a potential buffer overflow in 'svc_print_xprts()' svcrdma: Fix leak of transport addresses PCI: Use ioremap(), not phys_to_virt() for platform ROM ubifs: Fix out-of-bounds memory access caused by abnormal value of node_len ALSA: usb-audio: Fix case when USB MIDI interface has more than one extra endpoint descriptor PCI: pciehp: Fix MSI interrupt race NFS: Fix races nfs_page_group_destroy() vs nfs_destroy_unlinked_subrequests() mm/kmemleak.c: use address-of operator on section symbols mm/filemap.c: clear page error before actual read mm/vmscan.c: fix data races using kswapd_classzone_idx nvmet-rdma: fix double free of rdma queue mm/mmap.c: initialize align_offset explicitly for vm_unmapped_area scsi: qedi: Fix termination timeouts in session logout serial: uartps: Wait for tx_empty in console setup KVM: Remove CREATE_IRQCHIP/SET_PIT2 race bdev: Reduce time holding bd_mutex in sync in blkdev_close() drivers: char: tlclk.c: Avoid data race between init and interrupt handler KVM: arm64: vgic-its: Fix memory leak on the error path of vgic_add_lpi() net: openvswitch: use u64 for meter bucket scsi: aacraid: Fix error handling paths in aac_probe_one() staging:r8188eu: avoid skb_clone for amsdu to msdu conversion sparc64: vcc: Fix error return code in vcc_probe() arm64: cpufeature: Relax checks for AArch32 support at EL[0-2] dt-bindings: sound: wm8994: Correct required supplies based on actual implementaion atm: fix a memory leak of vcc->user_back perf mem2node: Avoid double free related to realloc power: supply: max17040: Correct voltage reading phy: samsung: s5pv210-usb2: Add delay after reset Bluetooth: Handle Inquiry Cancel error after Inquiry Complete USB: EHCI: ehci-mv: fix error handling in mv_ehci_probe() tipc: fix memory leak in service subscripting tty: serial: samsung: Correct clock selection logic ALSA: hda: Fix potential race in unsol event handler powerpc/traps: Make unrecoverable NMIs die instead of panic fuse: don't check refcount after stealing page USB: EHCI: ehci-mv: fix less than zero comparison of an unsigned int scsi: cxlflash: Fix error return code in cxlflash_probe() arm64/cpufeature: Drop TraceFilt feature exposure from ID_DFR0 register e1000: Do not perform reset in reset_task if we are already down drm/nouveau/debugfs: fix runtime pm imbalance on error drm/nouveau: fix runtime pm imbalance on error drm/nouveau/dispnv50: fix runtime pm imbalance on error printk: handle blank console arguments passed in. usb: dwc3: Increase timeout for CmdAct cleared by device controller btrfs: don't force read-only after error in drop snapshot vfio/pci: fix memory leaks of eventfd ctx perf evsel: Fix 2 memory leaks perf trace: Fix the selection for architectures to generate the errno name tables perf stat: Fix duration_time value for higher intervals perf util: Fix memory leak of prefix_if_not_in perf metricgroup: Free metric_events on error perf kcore_copy: Fix module map when there are no modules loaded ASoC: img-i2s-out: Fix runtime PM imbalance on error wlcore: fix runtime pm imbalance in wl1271_tx_work wlcore: fix runtime pm imbalance in wlcore_regdomain_config mtd: rawnand: omap_elm: Fix runtime PM imbalance on error PCI: tegra: Fix runtime PM imbalance on error ceph: fix potential race in ceph_check_caps mm/swap_state: fix a data race in swapin_nr_pages rapidio: avoid data race between file operation callbacks and mport_cdev_add(). mtd: parser: cmdline: Support MTD names containing one or more colons x86/speculation/mds: Mark mds_user_clear_cpu_buffers() __always_inline vfio/pci: Clear error and request eventfd ctx after releasing cifs: Fix double add page to memcg when cifs_readpages nvme: fix possible deadlock when I/O is blocked scsi: libfc: Handling of extra kref scsi: libfc: Skip additional kref updating work event selftests/x86/syscall_nt: Clear weird flags after each test vfio/pci: fix racy on error and request eventfd ctx btrfs: qgroup: fix data leak caused by race between writeback and truncate ubi: fastmap: Free unused fastmap anchor peb during detach perf parse-events: Use strcmp() to compare the PMU name net: openvswitch: use div_u64() for 64-by-32 divisions nvme: explicitly update mpath disk capacity on revalidation ASoC: wm8994: Skip setting of the WM8994_MICBIAS register for WM1811 ASoC: wm8994: Ensure the device is resumed in wm89xx_mic_detect functions ASoC: Intel: bytcr_rt5640: Add quirk for MPMAN Converter9 2-in-1 RISC-V: Take text_mutex in ftrace_init_nop() s390/init: add missing __init annotations lockdep: fix order in trace_hardirqs_off_caller() drm/amdkfd: fix a memory leak issue i2c: core: Call i2c_acpi_install_space_handler() before i2c_acpi_register_devices() objtool: Fix noreturn detection for ignored functions ieee802154: fix one possible memleak in ca8210_dev_com_init ieee802154/adf7242: check status of adf7242_read_reg clocksource/drivers/h8300_timer8: Fix wrong return value in h8300_8timer_init() mwifiex: Increase AES key storage size to 256 bits batman-adv: bla: fix type misuse for backbone_gw hash indexing atm: eni: fix the missed pci_disable_device() for eni_init_one() batman-adv: mcast/TT: fix wrongly dropped or rerouted packets mac802154: tx: fix use-after-free bpf: Fix clobbering of r2 in bpf_gen_ld_abs drm/vc4/vc4_hdmi: fill ASoC card owner net: qed: RDMA personality shouldn't fail VF load drm/sun4i: sun8i-csc: Secondary CSC register correction batman-adv: Add missing include for in_interrupt() batman-adv: mcast: fix duplicate mcast packets in BLA backbone from mesh batman-adv: mcast: fix duplicate mcast packets from BLA backbone to mesh bpf: Fix a rcu warning for bpffs map pretty-print ALSA: asihpi: fix iounmap in error handler regmap: fix page selection for noinc reads MIPS: Add the missing 'CPU_1074K' into __get_cpu_type() KVM: x86: Reset MMU context if guest toggles CR4.SMAP or CR4.PKE KVM: SVM: Add a dedicated INVD intercept routine tracing: fix double free s390/dasd: Fix zero write for FBA devices kprobes: Fix to check probe enabled before disarm_kprobe_ftrace() mm, THP, swap: fix allocating cluster for swapfile by mistake s390/zcrypt: Fix ZCRYPT_PERDEV_REQCNT ioctl kprobes: Fix compiler warning for !CONFIG_KPROBES_ON_FTRACE ata: define AC_ERR_OK ata: make qc_prep return ata_completion_errors ata: sata_mv, avoid trigerrable BUG_ON KVM: arm64: Assume write fault on S1PTW permission fault on instruction fetch Linux 4.19.149 Signed-off-by: Greg Kroah-Hartman <gregkh@google.com> Change-Id: Idfc1b35ec63b4b464aeb6e32709102bee0efc872 |
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Al Viro
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98e151baab |
fix dget_parent() fastpath race
[ Upstream commit e84009336711d2bba885fc9cea66348ddfce3758 ] We are overoptimistic about taking the fast path there; seeing the same value in ->d_parent after having grabbed a reference to that parent does *not* mean that it has remained our parent all along. That wouldn't be a big deal (in the end it is our parent and we have grabbed the reference we are about to return), but... the situation with barriers is messed up. We might have hit the following sequence: d is a dentry of /tmp/a/b CPU1: CPU2: parent = d->d_parent (i.e. dentry of /tmp/a) rename /tmp/a/b to /tmp/b rmdir /tmp/a, making its dentry negative grab reference to parent, end up with cached parent->d_inode (NULL) mkdir /tmp/a, rename /tmp/b to /tmp/a/b recheck d->d_parent, which is back to original decide that everything's fine and return the reference we'd got. The trouble is, caller (on CPU1) will observe dget_parent() returning an apparently negative dentry. It actually is positive, but CPU1 has stale ->d_inode cached. Use d->d_seq to see if it has been moved instead of rechecking ->d_parent. NOTE: we are *NOT* going to retry on any kind of ->d_seq mismatch; we just go into the slow path in such case. We don't wait for ->d_seq to become even either - again, if we are racing with renames, we can bloody well go to slow path anyway. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Sasha Levin <sashal@kernel.org> |
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Ivaylo Georgiev
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4c30d46517 |
Merge android-4.19.95 (5da1114 ) into msm-4.19
* refs/heads/tmp-5da1114: Revert crypto changes from android-4.19.79-95 Revert "UPSTREAM: PM / wakeup updates" Revert "ANDROID: of: property: Enable of_devlink by default" Revert "UPSTREAM: dt-bindings: arm: coresight: Add support for coresight-loses-context-with-cpu" UPSTREAM: net: usbnet: Fix -Wcast-function-type UPSTREAM: USB: dummy-hcd: use usb_urb_dir_in instead of usb_pipein UPSTREAM: USB: dummy-hcd: increase max number of devices to 32 ANDROID: tty: serdev: Fix broken serial console input ANDROID: update kernel ABI (perf_event changes) BACKPORT: perf_event: Add support for LSM and SELinux checks UPSTREAM: iommu: Allow io-pgtable to be used outside of drivers/iommu/ ANDROID: update abi for 4.19.94 release ANDROID: update abi due to revert Revert "BACKPORT: perf_event: Add support for LSM and SELinux checks" UPSTREAM: selinux: sidtab reverse lookup hash table UPSTREAM: selinux: avoid atomic_t usage in sidtab UPSTREAM: selinux: check sidtab limit before adding a new entry UPSTREAM: selinux: fix context string corruption in convert_context() UPSTREAM: selinux: overhaul sidtab to fix bug and improve performance UPSTREAM: selinux: refactor mls_context_to_sid() and make it stricter UPSTREAM: selinux: use separate table for initial SID lookup UPSTREAM: selinux: make "selinux_policycap_names[]" const char * UPSTREAM: selinux: refactor sidtab conversion ANDROID: Update ABI representation ANDROID: GKI: clk: Don't disable unused clocks with sync state support ANDROID: GKI: clk: Add support for clock providers with sync state ANDROID: GKI: driver core: Add dev_has_sync_state() ANDROID: update kernel ABI representation BACKPORT: perf_event: Add support for LSM and SELinux checks ANDROID: update ABI representation UPSTREAM: exit: panic before exit_mm() on global init exit ANDROID: serdev: Fix platform device support ANDROID: Kconfig.gki: Add Hidden SPRD DRM configs ANDROID: gki_defconfig: Disable TRANSPARENT_HUGEPAGE ANDROID: gki_defconfig: Enable CONFIG_GNSS_CMDLINE_SERIAL ANDROID: gnss: Add command line test driver ANDROID: serdev: add platform device support ANDROID: gki_defconfig: enable ARM64_SW_TTBR0_PAN ANDROID: gki_defconfig: Set BINFMT_MISC as =m UPSTREAM: binder: fix incorrect calculation for num_valid ABI: Update ABI after f2fs merge ANDROID: add initial ABI whitelist for android-4.19 ANDROID: staging: android: ion: Fix build when CONFIG_ION_SYSTEM_HEAP=n ANDROID: staging: android: ion: Expose total heap and pool sizes via sysfs ANDROID: Update ABI representation due to vmstat counter changes UPSTREAM: include/linux/slab.h: fix sparse warning in kmalloc_type() UPSTREAM: mm, slab: shorten kmalloc cache names for large sizes UPSTREAM: mm, proc: add KReclaimable to /proc/meminfo UPSTREAM: mm: rename and change semantics of nr_indirectly_reclaimable_bytes UPSTREAM: dcache: allocate external names from reclaimable kmalloc caches UPSTREAM: mm, slab/slub: introduce kmalloc-reclaimable caches UPSTREAM: mm, slab: combine kmalloc_caches and kmalloc_dma_caches ANDROID: abi update for 4.19.89 ANDROID: update abi_gki_aarch64.xml for LTO, CFI, and SCS ANDROID: gki_defconfig: enable LTO, CFI, and SCS ANDROID: update abi_gki_aarch64.xml for CONFIG_GNSS ANDROID: cuttlefish_defconfig: Enable CONFIG_GNSS UPSTREAM: arm64: Validate tagged addresses in access_ok() called from kernel threads ANDROID: mm: Throttle rss_stat tracepoint UPSTREAM: mm: slub: really fix slab walking for init_on_free ANDROID: update abi_gki_aarch64.xml for nf change ANDROID: kbuild: limit LTO inlining ANDROID: kbuild: merge module sections with LTO ANDROID: netfilter: nf_nat: remove static from nf_nat_ipv4_fn UPSTREAM: drm/client: remove the exporting of drm_client_close ANDROID: f2fs: fix possible merge of unencrypted with encrypted I/O UPSTREAM: binder: Add binder_proc logging to binderfs UPSTREAM: binder: Make transaction_log available in binderfs UPSTREAM: binder: Add stats, state and transactions files UPSTREAM: binder: add a mount option to show global stats UPSTREAM: binder: Validate the default binderfs device names. UPSTREAM: binder: Add default binder devices through binderfs when configured UPSTREAM: binder: fix CONFIG_ANDROID_BINDER_DEVICES UPSTREAM: android: binder: use kstrdup instead of open-coding it UPSTREAM: binderfs: remove separate device_initcall() UPSTREAM: binderfs: respect limit on binder control creation UPSTREAM: binderfs: switch from d_add() to d_instantiate() UPSTREAM: binderfs: drop lock in binderfs_binder_ctl_create UPSTREAM: binderfs: kill_litter_super() before cleanup UPSTREAM: binderfs: rework binderfs_binder_device_create() UPSTREAM: binderfs: rework binderfs_fill_super() UPSTREAM: binderfs: prevent renaming the control dentry UPSTREAM: binderfs: remove outdated comment UPSTREAM: binderfs: fix error return code in binderfs_fill_super() UPSTREAM: binderfs: handle !CONFIG_IPC_NS builds UPSTREAM: binderfs: reserve devices for initial mount UPSTREAM: binderfs: rename header to binderfs.h UPSTREAM: binderfs: implement "max" mount option UPSTREAM: binderfs: make each binderfs mount a new instance UPSTREAM: binderfs: remove wrong kern_mount() call UPSTREAM: binder: implement binderfs UPSTREAM: binder: remove BINDER_DEBUG_ENTRY() ANDROID: Don't base allmodconfig on gki_defconfig ANDROID: Disable UNWINDER_ORC for allmodconfig ANDROID: update abi_gki_aarch64.xml for 4.19.87 BACKPORT: ARM: 8905/1: Emit __gnu_mcount_nc when using Clang 10.0.0 or newer ANDROID: update abi_gki_aarch64.xml ANDROID: gki_defconfig: =m's applied for virtio configs in arm64 UPSTREAM: of: property: Add device link support for interrupt-parent, dmas and -gpio(s) UPSTREAM: of: property: Add device link support for "iommu-map" UPSTREAM: of: property: Fix the semantics of of_is_ancestor_of() UPSTREAM: i2c: of: Populate fwnode in of_i2c_get_board_info() UPSTREAM: driver core: Clarify documentation for fwnode_operations.add_links() UPSTREAM: dt-bindings: arm: coresight: Add support for coresight-loses-context-with-cpu BACKPORT: coresight: etm4x: Save/restore state across CPU low power states ANDROID: Update ABI representation ANDROID: gki_defconfig: IIO=y f2fs: stop GC when the victim becomes fully valid f2fs: expose main_blkaddr in sysfs f2fs: choose hardlimit when softlimit is larger than hardlimit in f2fs_statfs_project() f2fs: Fix deadlock in f2fs_gc() context during atomic files handling f2fs: show f2fs instance in printk_ratelimited f2fs: fix potential overflow f2fs: fix to update dir's i_pino during cross_rename f2fs: support aligned pinned file f2fs: avoid kernel panic on corruption test f2fs: fix wrong description in document f2fs: cache global IPU bio f2fs: fix to avoid memory leakage in f2fs_listxattr f2fs: check total_segments from devices in raw_super f2fs: update multi-dev metadata in resize_fs f2fs: mark recovery flag correctly in read_raw_super_block() f2fs: fix to update time in lazytime mode vfs: don't allow writes to swap files mm: set S_SWAPFILE on blockdev swap devices BACKPORT: ARM: 8900/1: UNWINDER_FRAME_POINTER implementation for Clang ANDROID: update abi_gki_aarch64.xml for 4.19.87 ANDROID: gki_defconfig: FW_CACHE to no FROMGIT: firmware_class: make firmware caching configurable FROMLIST: arm64: implement Shadow Call Stack FROMLIST: arm64: disable SCS for hypervisor code BACKPORT: FROMLIST: arm64: vdso: disable Shadow Call Stack FROMLIST: arm64: efi: restore x18 if it was corrupted FROMLIST: arm64: preserve x18 when CPU is suspended FROMLIST: arm64: reserve x18 from general allocation with SCS FROMLIST: arm64: disable function graph tracing with SCS FROMLIST: scs: add support for stack usage debugging FROMLIST: scs: add accounting FROMLIST: add support for Clang's Shadow Call Stack (SCS) FROMLIST: arm64: kernel: avoid x18 in __cpu_soft_restart FROMLIST: arm64: kvm: stop treating register x18 as caller save FROMLIST: arm64/lib: copy_page: avoid x18 register in assembler code FROMLIST: arm64: mm: avoid x18 in idmap_kpti_install_ng_mappings ANDROID: use non-canonical CFI jump tables ANDROID: arm64: add __nocfi to __apply_alternatives ANDROID: arm64: add __pa_function ANDROID: arm64: allow ThinLTO to be selected ANDROID: soc/tegra: disable ARCH_TEGRA_210_SOC with LTO FROMLIST: arm64: fix alternatives with LLVM's integrated assembler ANDROID: irqchip/gic-v3: rename gic_of_init to work around a ThinLTO+CFI bug ANDROID: init: ensure initcall ordering with LTO Revert "ANDROID: init: ensure initcall ordering with LTO" ANDROID: add support for ThinLTO ANDROID: clang: update to 10.0.1 ANDROID: gki_defconfig: enable CONFIG_REGULATOR_FIXED_VOLTAGE ANDROID: gki_defconfig: removed CONFIG_PM_WAKELOCKS ANDROID: gki_defconfig: enable CONFIG_IKHEADERS as m FROMGIT: pinctrl: devicetree: Avoid taking direct reference to device name string ANDROID: update abi_gki_aarch64.xml for 4.19.86 update ANDROID: Update ABI representation ANDROID: gki_defconfig: disable FUNCTION_TRACER ANDROID: Update the ABI representation ANDROID: update ABI representation ANDROID: add unstripped modules to the distribution FROMLIST: vsprintf: Inline call to ptr_to_hashval UPSTREAM: rss_stat: Add support to detect RSS updates of external mm UPSTREAM: mm: emit tracepoint when RSS changes FROMGIT: driver core: Allow device link operations inside sync_state() ANDROID: uid_sys_stats: avoid double accounting of dying threads ANDROID: scsi: ufs-qcom: Enable BROKEN_CRYPTO quirk flag ANDROID: scsi: ufs-hisi: Enable BROKEN_CRYPTO quirk flag ANDROID: scsi: ufs: Add quirk bit for controllers that don't play well with inline crypto ANDROID: scsi: ufs: UFS init should not require inline crypto ANDROID: scsi: ufs: UFS crypto variant operations API ANDROID: gki_defconfig: enable inline encryption BACKPORT: FROMLIST: ext4: add inline encryption support BACKPORT: FROMLIST: f2fs: add inline encryption support BACKPORT: FROMLIST: fscrypt: add inline encryption support BACKPORT: FROMLIST: scsi: ufs: Add inline encryption support to UFS BACKPORT: FROMLIST: scsi: ufs: UFS crypto API BACKPORT: FROMLIST: scsi: ufs: UFS driver v2.1 spec crypto additions BACKPORT: FROMLIST: block: blk-crypto for Inline Encryption ANDROID: block: Fix bio_crypt_should_process WARN_ON BACKPORT: FROMLIST: block: Add encryption context to struct bio BACKPORT: FROMLIST: block: Keyslot Manager for Inline Encryption FROMLIST: f2fs: add support for IV_INO_LBLK_64 encryption policies FROMLIST: ext4: add support for IV_INO_LBLK_64 encryption policies BACKPORT: FROMLIST: fscrypt: add support for IV_INO_LBLK_64 policies FROMLIST: fscrypt: zeroize fscrypt_info before freeing FROMLIST: fscrypt: remove struct fscrypt_ctx BACKPORT: FROMLIST: fscrypt: invoke crypto API for ESSIV handling ANDROID: build kernels with llvm-nm and llvm-objcopy ANDROID: Fix allmodconfig build with CC=clang UPSTREAM: mm/page_poison: expose page_poisoning_enabled to kernel modules FROMGIT: of: property: Add device link support for iommus, mboxes and io-channels FROMGIT: of: property: Make it easy to add device links from DT properties FROMGIT: of: property: Minor style clean up of of_link_to_phandle() Revert "ANDROID: of/property: Add device link support for iommus" ANDROID: Add allmodconfig build.configs for x86_64 and aarch64 ANDROID: fix allmodconfig build ANDROID: nf: IDLETIMER: Fix possible use before initialization in idletimer_resume BACKPORT: coresight: funnel: Support static funnel BACKPORT:FROMGIT: coresight: replicator: Fix missing spin_lock_init() BACKPORT:FROMGIT: coresight: funnel: Fix missing spin_lock_init() BACKPORT:FROMGIT: coresight: Serialize enabling/disabling a link device. UPSTREAM: coresight: tmc-etr: Add barrier packets when moving offset forward UPSTREAM: coresight: tmc-etr: Decouple buffer sync and barrier packet insertion UPSTREAM: coresight: tmc: Make memory width mask computation into a function UPSTREAM: coresight: tmc-etr: Fix perf_data check UPSTREAM: coresight: tmc-etr: Fix updating buffer in not-snapshot mode. UPSTREAM: coresight: tmc-etr: Check if non-secure access is enabled UPSTREAM: coresight: tmc-etr: Handle memory errors BACKPORT: coresight: etr_buf: Consolidate refcount initialization UPSTREAM: coresight: Fix DEBUG_LOCKS_WARN_ON for uninitialized attribute UPSTREAM: coresight: Use coresight device names for sinks in PMU attribute UPSTREAM: coresight: tmc-etr: alloc_perf_buf: Do not call smp_processor_id from preemptible UPSTREAM: coresight: tmc-etr: Do not call smp_processor_id() from preemptible UPSTREAM: coresight: perf: Don't set the truncated flag in snapshot mode UPSTREAM: coresight: tmc-etf: Fix snapshot mode update function UPSTREAM: coresight: tmc-etr: Properly set AUX buffer head in snapshot mode UPSTREAM: coresight: tmc-etr: Add support for CPU-wide trace scenarios UPSTREAM: coresight: tmc-etr: Allocate and free ETR memory buffers for CPU-wide scenarios UPSTREAM: coresight: tmc-etr: Introduce the notion of IDR to ETR devices UPSTREAM: coresight: tmc-etr: Introduce the notion of reference counting to ETR devices UPSTREAM: coresight: tmc-etr: Introduce the notion of process ID to ETR devices UPSTREAM: coresight: tmc-etr: Create per-thread buffer allocation function UPSTREAM: coresight: tmc-etr: Refactor function tmc_etr_setup_perf_buf() UPSTREAM: coresight: Communicate perf event to sink buffer allocation functions UPSTREAM: coresight: perf: Refactor function free_event_data() UPSTREAM: coresight: perf: Clean up function etm_setup_aux() UPSTREAM: coresight: Properly address concurrency in sink::update() functions UPSTREAM: coresight: Properly address errors in sink::disable() functions UPSTREAM: coresight: Move reference counting inside sink drivers UPSTREAM: coresight: Adding return code to sink::disable() operation UPSTREAM: coresight: etm4x: Configure tracers to emit timestamps UPSTREAM: coresight: etm4x: Skip selector pair 0 UPSTREAM: coresight: etm4x: Add kernel configuration for CONTEXTID UPSTREAM: coresight: pmu: Adding ITRACE property to cs_etm PMU UPSTREAM: coresight: tmc: Cleanup power management UPSTREAM: coresight: Fix freeing up the coresight connections UPSTREAM: coresight: tmc: Report DMA setup failures UPSTREAM: coresight: catu: fix clang build warning UPSTREAM: perf/core: Fix the address filtering fix UPSTREAM: perf, pt, coresight: Fix address filters for vmas with non-zero offset UPSTREAM: perf: Copy parent's address filter offsets on clone UPSTREAM: coresight: Use event attributes for sink selection UPSTREAM: coresight: perf: Add "sinks" group to PMU directory UPSTREAM: coresight: etb10: Add support for CLAIM tag UPSTREAM: coreisght: tmc: Claim device before use UPSTREAM: coresight: dynamic-replicator: Claim device for use UPSTREAM: coresight: funnel: Claim devices before use UPSTREAM: coresight: etmx: Claim devices before use UPSTREAM: coresight: Add support for CLAIM tag protocol UPSTREAM: coresight: dynamic-replicator: Handle multiple connections UPSTREAM: coresight: etb10: Handle errors enabling the device UPSTREAM: coresight: etm3: Add support for handling errors UPSTREAM: coresight: etm4x: Add support for handling errors UPSTREAM: coresight: tmc-etb/etf: Prepare to handle errors enabling UPSTREAM: coresight: tmc-etr: Handle errors enabling CATU UPSTREAM: coresight: tmc-etr: Refactor for handling errors UPSTREAM: coresight: Handle failures in enabling a trace path UPSTREAM: coresight: tmc: Fix byte-address alignment for RRP UPSTREAM: coresight: etm4x: Configure EL2 exception level when kernel is running in HYP UPSTREAM: coresight: etb10: Splitting function etb_enable() UPSTREAM: coresight: etb10: Refactor etb_drvdata::mode handling UPSTREAM: coresight: etm-perf: Add support for ETR backend UPSTREAM: coresight: perf: Remove set_buffer call back UPSTREAM: coresight: perf: Add helper to retrieve sink configuration UPSTREAM: coresight: perf: Remove reset_buffer call back for sinks UPSTREAM: coresight: Convert driver messages to dev_dbg UPSTREAM: coresight: tmc-etr: Relax collection of trace from sysfs mode UPSTREAM: coresight: tmc-etr: Handle driver mode specific ETR buffers UPSTREAM: coresight: perf: Disable trace path upon source error UPSTREAM: coresight: perf: Allow tracing on hotplugged CPUs UPSTREAM: coresight: perf: Avoid unncessary CPU hotplug read lock UPSTREAM: coresight: perf: Fix per cpu path management UPSTREAM: coresight: Fix handling of sinks UPSTREAM: coresight: Use ERR_CAST instead of ERR_PTR UPSTREAM: coresight: Fix remote endpoint parsing UPSTREAM: coresight: platform: Fix leaking device reference UPSTREAM: coresight: platform: Fix refcounting for graph nodes UPSTREAM: coresight: platform: Refactor graph endpoint parsing UPSTREAM: coresight: Document error handling in coresight_register ANDROID: regression introduced override_creds=off ANDROID: overlayfs: internal getxattr operations without sepolicy checking ANDROID: overlayfs: add __get xattr method ANDROID: Add optional __get xattr method paired to __vfs_getxattr UPSTREAM: scsi: ufs: override auto suspend tunables for ufs UPSTREAM: scsi: core: allow auto suspend override by low-level driver FROMGIT: of: property: Skip adding device links to suppliers that aren't devices ANDROID: gki_defconfig: enable CONFIG_KEYBOARD_GPIO UPSTREAM: dm bufio: introduce a global cache replacement UPSTREAM: dm bufio: remove old-style buffer cleanup UPSTREAM: dm bufio: introduce a global queue UPSTREAM: dm bufio: refactor adjust_total_allocated UPSTREAM: dm bufio: call adjust_total_allocated from __link_buffer and __unlink_buffer ANDROID: dummy_cpufreq: Implement get() ANDROID: gki_defconfig: enable CONFIG_CPUSETS ANDROID: virtio: virtio_input: Set the amount of multitouch slots in virtio input rtlwifi: Fix potential overflow on P2P code ANDROID: cpufreq: create dummy cpufreq driver ANDROID: Allow DRM_IOCTL_MODE_*_DUMB for render clients. Cuttlefish Wifi: Add data ops in virt_wifi driver for scan data simulation ANDROID: of: property: Enable of_devlink by default ANDROID: of: property: Make sure child dependencies don't block probing of parent ANDROID: driver core: Allow fwnode_operations.add_links to differentiate errors ANDROID: driver core: Allow a device to wait on optional suppliers ANDROID: driver core: Add device link support for SYNC_STATE_ONLY flag FROMGIT: docs: driver-model: Add documentation for sync_state FROMGIT: driver: core: Improve documentation for fwnode_operations.add_links() FROMGIT: of: property: Minor code formatting/style clean ups ANDROID: of/property: Add device link support for iommus ANDROID: move up spin_unlock_bh() ahead of remove_proc_entry() BACKPORT: arm64: tags: Preserve tags for addresses translated via TTBR1 UPSTREAM: arm64: memory: Implement __tag_set() as common function UPSTREAM: arm64/mm: fix variable 'tag' set but not used UPSTREAM: arm64: avoid clang warning about self-assignment ANDROID: sdcardfs: evict dentries on fscrypt key removal ANDROID: fscrypt: add key removal notifier chain ANDROID: refactor build.config files to remove duplication ANDROID: Move from clang r353983c to r365631c ANDROID: gki_defconfig: remove PWRSEQ_EMMC and PWRSEQ_SIMPLE ANDROID: unconditionally compile sig_ok in struct module ANDROID: gki_defconfig: enable fs-verity UPSTREAM: mm: vmalloc: show number of vmalloc pages in /proc/meminfo BACKPORT: PM/sleep: Expose suspend stats in sysfs UPSTREAM: power: supply: Init device wakeup after device_add() UPSTREAM: PM / wakeup: Unexport wakeup_source_sysfs_{add,remove}() UPSTREAM: PM / wakeup: Register wakeup class kobj after device is added UPSTREAM: PM / wakeup: Fix sysfs registration error path UPSTREAM: PM / wakeup: Show wakeup sources stats in sysfs UPSTREAM: PM / wakeup: Use wakeup_source_register() in wakelock.c UPSTREAM: PM / wakeup: Drop wakeup_source_init(), wakeup_source_prepare() UPSTREAM: PM / wakeup: Drop wakeup_source_drop() UPSTREAM: PM / core: Add support to skip power management in device/driver model gki_defconfig: Enable CONFIG_DM_SNAPSHOT ANDROID: gki_defconfig: enable accelerated AES and SHA-256 ANDROID: fix overflow in /proc/uid_cputime/remove_uid_range ANDROID: kasan: fix has_attribute check on older GCC versions ANDROID: gki_defconfig: enable CONFIG_PARAVIRT and CONFIG_HYPERVISOR_GUEST ANDROID: gki_defconfig: enable CONFIG_NLS_* ANDROID: gki_defconfig: Enable BPF_JIT and BPF_JIT_ALWAYS_ON FROMGIT: of: property: Create device links for all child-supplier depencencies FROMGIT: of/platform: Pause/resume sync state during init and of_platform_populate() BACKPORT: FROMGIT: driver core: Add sync_state driver/bus callback BACKPORT: FROMGIT: of: property: Add functional dependency link from DT bindings FROMGIT: driver core: Add support for linking devices during device addition FROMGIT: driver core: Add fwnode_to_dev() to look up device from fwnode UPSTREAM: mm: untag user pointers in mmap/munmap/mremap/brk UPSTREAM: vfio/type1: untag user pointers in vaddr_get_pfn UPSTREAM: tee/shm: untag user pointers in tee_shm_register UPSTREAM: media/v4l2-core: untag user pointers in videobuf_dma_contig_user_get UPSTREAM: drm/radeon: untag user pointers in radeon_gem_userptr_ioctl BACKPORT: drm/amdgpu: untag user pointers UPSTREAM: userfaultfd: untag user pointers UPSTREAM: fs/namespace: untag user pointers in copy_mount_options UPSTREAM: mm: untag user pointers in get_vaddr_frames UPSTREAM: mm: untag user pointers in mm/gup.c UPSTREAM: mm: untag user pointers passed to memory syscalls BACKPORT: lib: untag user pointers in strn*_user UPSTREAM: arm64: Fix reference to docs for ARM64_TAGGED_ADDR_ABI UPSTREAM: selftests, arm64: add kernel headers path for tags_test BACKPORT: arm64: Relax Documentation/arm64/tagged-pointers.rst UPSTREAM: arm64: Define Documentation/arm64/tagged-address-abi.rst UPSTREAM: arm64: Change the tagged_addr sysctl control semantics to only prevent the opt-in UPSTREAM: arm64: Tighten the PR_{SET, GET}_TAGGED_ADDR_CTRL prctl() unused arguments UPSTREAM: selftests, arm64: fix uninitialized symbol in tags_test.c UPSTREAM: arm64: mm: Really fix sparse warning in untagged_addr() UPSTREAM: selftests, arm64: add a selftest for passing tagged pointers to kernel BACKPORT: arm64: Introduce prctl() options to control the tagged user addresses ABI UPSTREAM: arm64: untag user pointers in access_ok and __uaccess_mask_ptr UPSTREAM: uaccess: add noop untagged_addr definition BACKPORT: block: annotate refault stalls from IO submission f2fs: add a condition to detect overflow in f2fs_ioc_gc_range() f2fs: fix to add missing F2FS_IO_ALIGNED() condition f2fs: fix to fallback to buffered IO in IO aligned mode f2fs: fix to handle error path correctly in f2fs_map_blocks f2fs: fix extent corrupotion during directIO in LFS mode f2fs: check all the data segments against all node ones f2fs: Add a small clarification to CONFIG_FS_F2FS_FS_SECURITY f2fs: fix inode rwsem regression f2fs: fix to avoid accessing uninitialized field of inode page in is_alive() f2fs: avoid infinite GC loop due to stale atomic files f2fs: Fix indefinite loop in f2fs_gc() f2fs: convert inline_data in prior to i_size_write f2fs: fix error path of f2fs_convert_inline_page() f2fs: add missing documents of reserve_root/resuid/resgid f2fs: fix flushing node pages when checkpoint is disabled f2fs: enhance f2fs_is_checkpoint_ready()'s readability f2fs: clean up __bio_alloc()'s parameter f2fs: fix wrong error injection path in inc_valid_block_count() f2fs: fix to writeout dirty inode during node flush f2fs: optimize case-insensitive lookups f2fs: introduce f2fs_match_name() for cleanup f2fs: Fix indefinite loop in f2fs_gc() f2fs: allocate memory in batch in build_sit_info() f2fs: support FS_IOC_{GET,SET}FSLABEL f2fs: fix to avoid data corruption by forbidding SSR overwrite f2fs: Fix build error while CONFIG_NLS=m Revert "f2fs: avoid out-of-range memory access" f2fs: cleanup the code in build_sit_entries. f2fs: fix wrong available node count calculation f2fs: remove duplicate code in f2fs_file_write_iter f2fs: fix to migrate blocks correctly during defragment f2fs: use wrapped f2fs_cp_error() f2fs: fix to use more generic EOPNOTSUPP f2fs: use wrapped IS_SWAPFILE() f2fs: Support case-insensitive file name lookups f2fs: include charset encoding information in the superblock fs: Reserve flag for casefolding f2fs: fix to avoid call kvfree under spinlock fs: f2fs: Remove unnecessary checks of SM_I(sbi) in update_general_status() f2fs: disallow direct IO in atomic write f2fs: fix to handle quota_{on,off} correctly f2fs: fix to detect cp error in f2fs_setxattr() f2fs: fix to spread f2fs_is_checkpoint_ready() f2fs: support fiemap() for directory inode f2fs: fix to avoid discard command leak f2fs: fix to avoid tagging SBI_QUOTA_NEED_REPAIR incorrectly f2fs: fix to drop meta/node pages during umount f2fs: disallow switching io_bits option during remount f2fs: fix panic of IO alignment feature f2fs: introduce {page,io}_is_mergeable() for readability f2fs: fix livelock in swapfile writes f2fs: add fs-verity support ext4: update on-disk format documentation for fs-verity ext4: add fs-verity read support ext4: add basic fs-verity support fs-verity: support builtin file signatures fs-verity: add SHA-512 support fs-verity: implement FS_IOC_MEASURE_VERITY ioctl fs-verity: implement FS_IOC_ENABLE_VERITY ioctl fs-verity: add data verification hooks for ->readpages() fs-verity: add the hook for file ->setattr() fs-verity: add the hook for file ->open() fs-verity: add inode and superblock fields fs-verity: add Kconfig and the helper functions for hashing fs: uapi: define verity bit for FS_IOC_GETFLAGS fs-verity: add UAPI header fs-verity: add MAINTAINERS file entry fs-verity: add a documentation file ext4: fix kernel oops caused by spurious casefold flag ext4: fix coverity warning on error path of filename setup ext4: optimize case-insensitive lookups ext4: fix dcache lookup of !casefolded directories unicode: update to Unicode 12.1.0 final unicode: add missing check for an error return from utf8lookup() ext4: export /sys/fs/ext4/feature/casefold if Unicode support is present unicode: refactor the rule for regenerating utf8data.h ext4: Support case-insensitive file name lookups ext4: include charset encoding information in the superblock unicode: update unicode database unicode version 12.1.0 unicode: introduce test module for normalized utf8 implementation unicode: implement higher level API for string handling unicode: reduce the size of utf8data[] unicode: introduce code for UTF-8 normalization unicode: introduce UTF-8 character database ext4 crypto: fix to check feature status before get policy fscrypt: document the new ioctls and policy version ubifs: wire up new fscrypt ioctls f2fs: wire up new fscrypt ioctls ext4: wire up new fscrypt ioctls fscrypt: require that key be added when setting a v2 encryption policy fscrypt: add FS_IOC_REMOVE_ENCRYPTION_KEY_ALL_USERS ioctl fscrypt: allow unprivileged users to add/remove keys for v2 policies fscrypt: v2 encryption policy support fscrypt: add an HKDF-SHA512 implementation fscrypt: add FS_IOC_GET_ENCRYPTION_KEY_STATUS ioctl fscrypt: add FS_IOC_REMOVE_ENCRYPTION_KEY ioctl fscrypt: add FS_IOC_ADD_ENCRYPTION_KEY ioctl fscrypt: rename keyinfo.c to keysetup.c fscrypt: move v1 policy key setup to keysetup_v1.c fscrypt: refactor key setup code in preparation for v2 policies fscrypt: rename fscrypt_master_key to fscrypt_direct_key fscrypt: add ->ci_inode to fscrypt_info fscrypt: use FSCRYPT_* definitions, not FS_* fscrypt: use FSCRYPT_ prefix for uapi constants fs, fscrypt: move uapi definitions to new header <linux/fscrypt.h> fscrypt: use ENOPKG when crypto API support missing fscrypt: improve warnings for missing crypto API support fscrypt: improve warning messages for unsupported encryption contexts fscrypt: make fscrypt_msg() take inode instead of super_block fscrypt: clean up base64 encoding/decoding fscrypt: remove loadable module related code Updated following files to fix build errors: drivers/gpu/msm/kgsl_pool.c drivers/hwtracing/coresight/coresight-dummy.c drivers/iommu/dma-mapping-fast.c drivers/iommu/io-pgtable-fast.c drivers/iommu/io-pgtable-msm-secure.c kernel/taskstats.c mm/vmalloc.c security/selinux/ss/sidtab.h Conflicts: arch/arm/Makefile arch/arm64/Kconfig arch/x86/include/asm/syscall_wrapper.h build.config.common drivers/clk/clk.c drivers/hwtracing/coresight/coresight-etm-perf.c drivers/hwtracing/coresight/coresight-funnel.c drivers/hwtracing/coresight/coresight-tmc-etf.c drivers/hwtracing/coresight/coresight-tmc-etr.c drivers/hwtracing/coresight/coresight-tmc.c drivers/hwtracing/coresight/coresight-tmc.h drivers/hwtracing/coresight/coresight.c drivers/hwtracing/coresight/of_coresight.c drivers/iommu/arm-smmu.c drivers/iommu/io-pgtable-arm.c drivers/iommu/io-pgtable.c drivers/scsi/scsi_sysfs.c drivers/scsi/sd.c drivers/scsi/ufs/ufshcd.c drivers/scsi/ufs/ufshcd.h drivers/staging/android/ion/ion.c drivers/staging/android/ion/ion.h drivers/staging/android/ion/ion_page_pool.c fs/ext4/readpage.c fs/f2fs/data.c fs/f2fs/f2fs.h fs/f2fs/file.c fs/f2fs/segment.c fs/f2fs/super.c include/linux/clk-provider.h include/linux/compiler_types.h include/linux/coresight.h include/linux/mmzone.h include/scsi/scsi_device.h include/trace/events/kmem.h kernel/events/core.c kernel/sched/core.c mm/vmstat.c Change-Id: I2eca52b08b484f2b5c30437671cab8cb0195b8d6 Signed-off-by: Ivaylo Georgiev <irgeorgiev@codeaurora.org> |
||
Ivaylo Georgiev
|
6a67f069c6 |
Merge android-4.19.66 (487e617 ) into msm-4.19
* refs/heads/tmp-487e617: ANDROID: update ABI dump ANDROID: gki_defconfig: disable IP_PNP, ECRYPT_FS ANDROID: gki_defconfig: backport from mainline branch UPSTREAM: net-ipv6-ndisc: add support for RFC7710 RA Captive Portal Identifier ANDROID: add GKI artifacts f2fs: use EINVAL for superblock with invalid magic f2fs: fix to read source block before invalidating it f2fs: remove redundant check from f2fs_setflags_common() f2fs: use generic checking function for FS_IOC_FSSETXATTR f2fs: use generic checking and prep function for FS_IOC_SETFLAGS ubifs, fscrypt: cache decrypted symlink target in ->i_link vfs: use READ_ONCE() to access ->i_link fs, fscrypt: clear DCACHE_ENCRYPTED_NAME when unaliasing directory fscrypt: cache decrypted symlink target in ->i_link fscrypt: fix race where ->lookup() marks plaintext dentry as ciphertext fscrypt: only set dentry_operations on ciphertext dentries fscrypt: fix race allowing rename() and link() of ciphertext dentries fscrypt: clean up and improve dentry revalidation fscrypt: use READ_ONCE() to access ->i_crypt_info fscrypt: remove WARN_ON_ONCE() when decryption fails fscrypt: drop inode argument from fscrypt_get_ctx() f2fs: improve print log in f2fs_sanity_check_ckpt() f2fs: avoid out-of-range memory access f2fs: fix to avoid long latency during umount f2fs: allow all the users to pin a file f2fs: support swap file w/ DIO f2fs: allocate blocks for pinned file f2fs: fix is_idle() check for discard type f2fs: add a rw_sem to cover quota flag changes f2fs: set SBI_NEED_FSCK for xattr corruption case f2fs: use generic EFSBADCRC/EFSCORRUPTED f2fs: Use DIV_ROUND_UP() instead of open-coding f2fs: print kernel message if filesystem is inconsistent f2fs: introduce f2fs_<level> macros to wrap f2fs_printk() f2fs: avoid get_valid_blocks() for cleanup f2fs: ioctl for removing a range from F2FS f2fs: only set project inherit bit for directory f2fs: separate f2fs i_flags from fs_flags and ext4 i_flags f2fs: Add option to limit required GC for checkpoint=disable f2fs: Fix accounting for unusable blocks f2fs: Fix root reserved on remount f2fs: Lower threshold for disable_cp_again f2fs: fix sparse warning f2fs: fix f2fs_show_options to show nodiscard mount option f2fs: add error prints for debugging mount failure f2fs: fix to do sanity check on segment bitmap of LFS curseg f2fs: add missing sysfs entries in documentation f2fs: fix to avoid deadloop if data_flush is on f2fs: always assume that the device is idle under gc_urgent f2fs: add bio cache for IPU f2fs: allow ssr block allocation during checkpoint=disable period f2fs: fix to check layout on last valid checkpoint park Conflicts: fs/crypto/bio.c fs/f2fs/inline.c fs/f2fs/node.c fs/f2fs/recovery.c fs/f2fs/segment.c fs/f2fs/super.c fs/f2fs/xattr.c Change-Id: I569e91b49192e755afb388dc753b13930a50e944 Signed-off-by: Ivaylo Georgiev <irgeorgiev@codeaurora.org> |
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Vlastimil Babka
|
0ca673b38f |
UPSTREAM: dcache: allocate external names from reclaimable kmalloc caches
We can use the newly introduced kmalloc-reclaimable-X caches, to allocate
external names in dcache, which will take care of the proper accounting
automatically, and also improve anti-fragmentation page grouping.
This effectively reverts commit
|
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Jaegeuk Kim
|
e6f3ddbf65 |
Merge remote-tracking branch 'origin/upstream-f2fs-stable-linux-4.19.y' into android-4.19
* origin/upstream-f2fs-stable-linux-4.19.y: f2fs: use EINVAL for superblock with invalid magic f2fs: fix to read source block before invalidating it f2fs: remove redundant check from f2fs_setflags_common() f2fs: use generic checking function for FS_IOC_FSSETXATTR f2fs: use generic checking and prep function for FS_IOC_SETFLAGS ubifs, fscrypt: cache decrypted symlink target in ->i_link vfs: use READ_ONCE() to access ->i_link fs, fscrypt: clear DCACHE_ENCRYPTED_NAME when unaliasing directory fscrypt: cache decrypted symlink target in ->i_link fscrypt: fix race where ->lookup() marks plaintext dentry as ciphertext fscrypt: only set dentry_operations on ciphertext dentries fscrypt: fix race allowing rename() and link() of ciphertext dentries fscrypt: clean up and improve dentry revalidation fscrypt: use READ_ONCE() to access ->i_crypt_info fscrypt: remove WARN_ON_ONCE() when decryption fails fscrypt: drop inode argument from fscrypt_get_ctx() f2fs: improve print log in f2fs_sanity_check_ckpt() f2fs: avoid out-of-range memory access f2fs: fix to avoid long latency during umount f2fs: allow all the users to pin a file f2fs: support swap file w/ DIO f2fs: allocate blocks for pinned file f2fs: fix is_idle() check for discard type f2fs: add a rw_sem to cover quota flag changes f2fs: set SBI_NEED_FSCK for xattr corruption case f2fs: use generic EFSBADCRC/EFSCORRUPTED f2fs: Use DIV_ROUND_UP() instead of open-coding f2fs: print kernel message if filesystem is inconsistent f2fs: introduce f2fs_<level> macros to wrap f2fs_printk() f2fs: avoid get_valid_blocks() for cleanup f2fs: ioctl for removing a range from F2FS f2fs: only set project inherit bit for directory f2fs: separate f2fs i_flags from fs_flags and ext4 i_flags f2fs: Add option to limit required GC for checkpoint=disable f2fs: Fix accounting for unusable blocks f2fs: Fix root reserved on remount f2fs: Lower threshold for disable_cp_again f2fs: fix sparse warning f2fs: fix f2fs_show_options to show nodiscard mount option f2fs: add error prints for debugging mount failure f2fs: fix to do sanity check on segment bitmap of LFS curseg f2fs: add missing sysfs entries in documentation f2fs: fix to avoid deadloop if data_flush is on f2fs: always assume that the device is idle under gc_urgent f2fs: add bio cache for IPU f2fs: allow ssr block allocation during checkpoint=disable period f2fs: fix to check layout on last valid checkpoint park Change-Id: Ie910f127f574c2115e5b9a6725461ce002c267be Signed-off-by: Jaegeuk Kim <jaegeuk@google.com> |
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Eric Biggers
|
dd038b348f |
fs, fscrypt: clear DCACHE_ENCRYPTED_NAME when unaliasing directory
Make __d_move() clear DCACHE_ENCRYPTED_NAME on the source dentry. This
is needed for when d_splice_alias() moves a directory's encrypted alias
to its decrypted alias as a result of the encryption key being added.
Otherwise, the decrypted alias will incorrectly be invalidated on the
next lookup, causing problems such as unmounting a mount the user just
mount()ed there.
Note that we don't have to support arbitrary moves of this flag because
fscrypt doesn't allow dentries with DCACHE_ENCRYPTED_NAME to be the
source or target of a rename().
Fixes:
|
||
Sahitya Tummala
|
b1175fcfc2 |
fs/dcache: Fix indefinite wait in d_invalidate()
In the path of task exit, the proc dentries corresponding to this task will be killed by moving it to a shrink list. If those dentries are already claimed by another task for shrinking, the exiting task waits in a tight loop until those dentries are killed. This can potentially result in a deadlock if those dentries are corresponding to an RT task but the task which is shrinking those dentries is a lower priority task. Fix this by not doing tight loop, if our dentries are claimed by other task. Change-Id: If6848521469db7dea2bbba0dbaf8597094716267 Signed-off-by: Sahitya Tummala <stummala@codeaurora.org> |
||
Al Viro
|
c939121b54 |
dcache: sort the freeing-without-RCU-delay mess for good.
commit 5467a68cbf6884c9a9d91e2a89140afb1839c835 upstream. For lockless accesses to dentries we don't have pinned we rely (among other things) upon having an RCU delay between dropping the last reference and actually freeing the memory. On the other hand, for things like pipes and sockets we neither do that kind of lockless access, nor want to deal with the overhead of an RCU delay every time a socket gets closed. So delay was made optional - setting DCACHE_RCUACCESS in ->d_flags made sure it would happen. We tried to avoid setting it unless we knew we need it. Unfortunately, that had led to recurring class of bugs, in which we missed the need to set it. We only really need it for dentries that are created by d_alloc_pseudo(), so let's not bother with trying to be smart - just make having an RCU delay the default. The ones that do *not* get it set the replacement flag (DCACHE_NORCU) and we'd better use that sparingly. d_alloc_pseudo() is the only such user right now. FWIW, the race that finally prompted that switch had been between __lock_parent() of immediate subdirectory of what's currently the root of a disconnected tree (e.g. from open-by-handle in progress) racing with d_splice_alias() elsewhere picking another alias for the same inode, either on outright corrupted fs image, or (in case of open-by-handle on NFS) that subdirectory having been just moved on server. It's not easy to hit, so the sky is not falling, but that's not the first race on similar missed cases and the logics for settinf DCACHE_RCUACCESS has gotten ridiculously convoluted. Cc: stable@vger.kernel.org Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
||
Waiman Long
|
bb4e1ff5a8 |
fs/dcache: Fix incorrect nr_dentry_unused accounting in shrink_dcache_sb()
commit 1dbd449c9943e3145148cc893c2461b72ba6fef0 upstream.
The nr_dentry_unused per-cpu counter tracks dentries in both the LRU
lists and the shrink lists where the DCACHE_LRU_LIST bit is set.
The shrink_dcache_sb() function moves dentries from the LRU list to a
shrink list and subtracts the dentry count from nr_dentry_unused. This
is incorrect as the nr_dentry_unused count will also be decremented in
shrink_dentry_list() via d_shrink_del().
To fix this double decrement, the decrement in the shrink_dcache_sb()
function is taken out.
Fixes:
|
||
Tetsuo Handa
|
6cd00a01f0 |
fs/dcache.c: fix kmemcheck splat at take_dentry_name_snapshot()
Since only dentry->d_name.len + 1 bytes out of DNAME_INLINE_LEN bytes are initialized at __d_alloc(), we can't copy the whole size unconditionally. WARNING: kmemcheck: Caught 32-bit read from uninitialized memory (ffff8fa27465ac50) 636f6e66696766732e746d70000000000010000000000000020000000188ffff i i i i i i i i i i i i i u u u u u u u u u u i i i i i u u u u ^ RIP: 0010:take_dentry_name_snapshot+0x28/0x50 RSP: 0018:ffffa83000f5bdf8 EFLAGS: 00010246 RAX: 0000000000000020 RBX: ffff8fa274b20550 RCX: 0000000000000002 RDX: ffffa83000f5be40 RSI: ffff8fa27465ac50 RDI: ffffa83000f5be60 RBP: ffffa83000f5bdf8 R08: ffffa83000f5be48 R09: 0000000000000001 R10: ffff8fa27465ac00 R11: ffff8fa27465acc0 R12: ffff8fa27465ac00 R13: ffff8fa27465acc0 R14: 0000000000000000 R15: 0000000000000000 FS: 00007f79737ac8c0(0000) GS:ffffffff8fc30000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffff8fa274c0b000 CR3: 0000000134aa7002 CR4: 00000000000606f0 take_dentry_name_snapshot+0x28/0x50 vfs_rename+0x128/0x870 SyS_rename+0x3b2/0x3d0 entry_SYSCALL_64_fastpath+0x1a/0xa4 0xffffffffffffffff Link: http://lkml.kernel.org/r/201709131912.GBG39012.QMJLOVFSFFOOtH@I-love.SAKURA.ne.jp Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> Cc: Vegard Nossum <vegard.nossum@gmail.com> Cc: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
||
Linus Torvalds
|
4591343e35 |
Merge branches 'work.misc' and 'work.dcache' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull misc vfs updates from Al Viro: "Misc cleanups from various folks all over the place I expected more fs/dcache.c cleanups this cycle, so that went into a separate branch. Said cleanups have missed the window, so in the hindsight it could've gone into work.misc instead. Decided not to cherry-pick, thus the 'work.dcache' branch" * 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: fs: dcache: Use true and false for boolean values fold generic_readlink() into its only caller fs: shave 8 bytes off of struct inode fs: Add more kernel-doc to the produced documentation fs: Fix attr.c kernel-doc removed extra extern file_fdatawait_range * 'work.dcache' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: kill dentry_update_name_case() |
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Linus Torvalds
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0ea97a2d61 |
Merge branch 'work.mkdir' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull vfs icache updates from Al Viro: - NFS mkdir/open_by_handle race fix - analogous solution for FUSE, replacing the one currently in mainline - new primitive to be used when discarding halfway set up inodes on failed object creation; gives sane warranties re icache lookups not returning such doomed by still not freed inodes. A bunch of filesystems switched to that animal. - Miklos' fix for last cycle regression in iget5_locked(); -stable will need a slightly different variant, unfortunately. - misc bits and pieces around things icache-related (in adfs and jfs). * 'work.mkdir' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: jfs: don't bother with make_bad_inode() in ialloc() adfs: don't put inodes into icache new helper: inode_fake_hash() vfs: don't evict uninitialized inode jfs: switch to discard_new_inode() ext2: make sure that partially set up inodes won't be returned by ext2_iget() udf: switch to discard_new_inode() ufs: switch to discard_new_inode() btrfs: switch to discard_new_inode() new primitive: discard_new_inode() kill d_instantiate_no_diralias() nfs_instantiate(): prevent multiple aliases for directory inode |
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Al Viro
|
4c0d7cd5c8 |
make sure that __dentry_kill() always invalidates d_seq, unhashed or not
RCU pathwalk relies upon the assumption that anything that changes ->d_inode of a dentry will invalidate its ->d_seq. That's almost true - the one exception is that the final dput() of already unhashed dentry does *not* touch ->d_seq at all. Unhashing does, though, so for anything we'd found by RCU dcache lookup we are fine. Unfortunately, we can *start* with an unhashed dentry or jump into it. We could try and be careful in the (few) places where that could happen. Or we could just make the final dput() invalidate the damn thing, unhashed or not. The latter is much simpler and easier to backport, so let's do it that way. Reported-by: "Dae R. Jeong" <threeearcat@gmail.com> Cc: stable@vger.kernel.org Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> |
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Al Viro
|
90bad5e05b |
root dentries need RCU-delayed freeing
Since mountpoint crossing can happen without leaving lazy mode,
root dentries do need the same protection against having their
memory freed without RCU delay as everything else in the tree.
It's partially hidden by RCU delay between detaching from the
mount tree and dropping the vfsmount reference, but the starting
point of pathwalk can be on an already detached mount, in which
case umount-caused RCU delay has already passed by the time the
lazy pathwalk grabs rcu_read_lock(). If the starting point
happens to be at the root of that vfsmount *and* that vfsmount
covers the entire filesystem, we get trouble.
Fixes:
|
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Gustavo A. R. Silva
|
7964410fcf |
fs: dcache: Use true and false for boolean values
Return statements in functions returning bool should use true or false instead of an integer value. This issue was detected with the help of Coccinelle. Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> |
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Al Viro
|
c2b6d621c4 |
new primitive: discard_new_inode()
We don't want open-by-handle picking half-set-up in-core struct inode from e.g. mkdir() having failed halfway through. In other words, we don't want such inodes returned by iget_locked() on their way to extinction. However, we can't just have them unhashed - otherwise open-by-handle immediately *after* that would've ended up creating a new in-core inode over the on-disk one that is in process of being freed right under us. Solution: new flag (I_CREATING) set by insert_inode_locked() and removed by unlock_new_inode() and a new primitive (discard_new_inode()) to be used by such halfway-through-setup failure exits instead of unlock_new_inode() / iput() combinations. That primitive unlocks new inode, but leaves I_CREATING in place. iget_locked() treats finding an I_CREATING inode as failure (-ESTALE, once we sort out the error propagation). insert_inode_locked() treats the same as instant -EBUSY. ilookup() treats those as icache miss. [Fix by Dan Carpenter <dan.carpenter@oracle.com> folded in] Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> |
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Al Viro
|
c971e6a006 |
kill d_instantiate_no_diralias()
The only user is fuse_create_new_entry(), and there it's used to mitigate the same mkdir/open-by-handle race as in nfs_mkdir(). The same solution applies - unhash the mkdir argument, then call d_splice_alias() and if that returns a reference to preexisting alias, dput() and report success. ->mkdir() argument left unhashed negative with the preexisting alias moved in the right place is just fine from the ->mkdir() callers point of view. Cc: Miklos Szeredi <miklos@szeredi.hu> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> |
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Al Viro
|
63a67a926e |
kill dentry_update_name_case()
the last user is gone Spotted-by: Richard Weinberger <richard@nod.at> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> |
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Linus Torvalds
|
f956d08a56 |
Merge branch 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull misc vfs updates from Al Viro: "Misc bits and pieces not fitting into anything more specific" * 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: vfs: delete unnecessary assignment in vfs_listxattr Documentation: filesystems: update filesystem locking documentation vfs: namei: use path_equal() in follow_dotdot() fs.h: fix outdated comment about file flags __inode_security_revalidate() never gets NULL opt_dentry make xattr_getsecurity() static vfat: simplify checks in vfat_lookup() get rid of dead code in d_find_alias() it's SB_BORN, not MS_BORN... msdos_rmdir(): kill BS comment remove rpc_rmdir() fs: avoid fdput() after failed fdget() in vfs_dedupe_file_range() |
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Linus Torvalds
|
06c86e66d6 |
Merge branch 'work.dcache' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull dcache updates from Al Viro: "This is the first part of dealing with livelocks etc around shrink_dcache_parent()." * 'work.dcache' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: restore cond_resched() in shrink_dcache_parent() dput(): turn into explicit while() loop dcache: move cond_resched() into the end of __dentry_kill() d_walk(): kill 'finish' callback d_invalidate(): unhash immediately |
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Al Viro
|
61fec493c9 |
get rid of dead code in d_find_alias()
All "try disconnected alias if nothing else fits" logics in d_find_alias() got accidentally disabled by Neil a while ago; for most of the callers it was the right thing to do, so fixes belong in few callers that *do* want disconnected aliases. This just takes the now-dead code in d_find_alias() out. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> |
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Al Viro
|
1e2e547a93 |
do d_instantiate/unlock_new_inode combinations safely
For anything NFS-exported we do _not_ want to unlock new inode before it has grown an alias; original set of fixes got the ordering right, but missed the nasty complication in case of lockdep being enabled - unlock_new_inode() does lockdep_annotate_inode_mutex_key(inode) which can only be done before anyone gets a chance to touch ->i_mutex. Unfortunately, flipping the order and doing unlock_new_inode() before d_instantiate() opens a window when mkdir can race with open-by-fhandle on a guessed fhandle, leading to multiple aliases for a directory inode and all the breakage that follows from that. Correct solution: a new primitive (d_instantiate_new()) combining these two in the right order - lockdep annotate, then d_instantiate(), then the rest of unlock_new_inode(). All combinations of d_instantiate() with unlock_new_inode() should be converted to that. Cc: stable@kernel.org # 2.6.29 and later Tested-by: Mike Marshall <hubcap@omnibond.com> Reviewed-by: Andreas Dilger <adilger@dilger.ca> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> |
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Al Viro
|
4fb4887140 |
restore cond_resched() in shrink_dcache_parent()
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> |
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Al Viro
|
1088a6408c |
dput(): turn into explicit while() loop
No need to mess with gotos when the code yielded by straight while() isn't any worse... Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> |
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Al Viro
|
9c5f1d3019 |
dcache: move cond_resched() into the end of __dentry_kill()
cond_resched() in shrink_dentry_list() is too early Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> |
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Al Viro
|
3a8e3611e0 |
d_walk(): kill 'finish' callback
no users left Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> |
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Al Viro
|
ff17fa561a |
d_invalidate(): unhash immediately
Once that is done, we can just hunt mountpoints down one by one; no new mountpoints can be added from now on, so we don't need anything tricky in finish() callback, etc. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> |
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Nikolay Borisov
|
32785c0539 |
fs/dcache.c: add cond_resched() in shrink_dentry_list()
As previously reported (https://patchwork.kernel.org/patch/8642031/) it's possible to call shrink_dentry_list with a large number of dentries (> 10000). This, in turn, could trigger the softlockup detector and possibly trigger a panic. In addition to the unmount path being vulnerable to this scenario, at SuSE we've observed similar situation happening during process exit on processes that touch a lot of dentries. Here is an excerpt from a crash dump. The number after the colon are the number of dentries on the list passed to shrink_dentry_list: PID 99760: 10722 PID 107530: 215 PID 108809: 24134 PID 108877: 21331 PID 141708: 16487 So we want to kill between 15k-25k dentries without yielding. And one possible call stack looks like: 4 [ffff8839ece41db0] _raw_spin_lock at ffffffff8152a5f8 5 [ffff8839ece41db0] evict at ffffffff811c3026 6 [ffff8839ece41dd0] __dentry_kill at ffffffff811bf258 7 [ffff8839ece41df0] shrink_dentry_list at ffffffff811bf593 8 [ffff8839ece41e18] shrink_dcache_parent at ffffffff811bf830 9 [ffff8839ece41e50] proc_flush_task at ffffffff8120dd61 10 [ffff8839ece41ec0] release_task at ffffffff81059ebd 11 [ffff8839ece41f08] do_exit at ffffffff8105b8ce 12 [ffff8839ece41f78] sys_exit at ffffffff8105bd53 13 [ffff8839ece41f80] system_call_fastpath at ffffffff81532909 While some of the callers of shrink_dentry_list do use cond_resched, this is not sufficient to prevent softlockups. So just move cond_resched into shrink_dentry_list from its callers. David said: I've found hundreds of occurrences of warnings that we emit when need_resched stays set for a prolonged period of time with the stack trace that is included in the change log. Link: http://lkml.kernel.org/r/1521718946-31521-1-git-send-email-nborisov@suse.com Signed-off-by: Nikolay Borisov <nborisov@suse.com> Reviewed-by: Andrew Morton <akpm@linux-foundation.org> Acked-by: David Rientjes <rientjes@google.com> Cc: Alexander Viro <viro@zeniv.linux.org.uk> Cc: Goldwyn Rodrigues <rgoldwyn@suse.de> Cc: Jeff Mahoney <jeffm@suse.com> Cc: Davidlohr Bueso <dave@stgolabs.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Roman Gushchin
|
f1782c9bc5 |
dcache: account external names as indirectly reclaimable memory
I received a report about suspicious growth of unreclaimable slabs on
some machines. I've found that it happens on machines with low memory
pressure, and these unreclaimable slabs are external names attached to
dentries.
External names are allocated using generic kmalloc() function, so they
are accounted as unreclaimable. But they are held by dentries, which
are reclaimable, and they will be reclaimed under the memory pressure.
In particular, this breaks MemAvailable calculation, as it doesn't take
unreclaimable slabs into account. This leads to a silly situation, when
a machine is almost idle, has no memory pressure and therefore has a big
dentry cache. And the resulting MemAvailable is too low to start a new
workload.
To address the issue, the NR_INDIRECTLY_RECLAIMABLE_BYTES counter is
used to track the amount of memory, consumed by external names. The
counter is increased in the dentry allocation path, if an external name
structure is allocated; and it's decreased in the dentry freeing path.
To reproduce the problem I've used the following Python script:
import os
for iter in range (0, 10000000):
try:
name = ("/some_long_name_%d" % iter) + "_" * 220
os.stat(name)
except Exception:
pass
Without this patch:
$ cat /proc/meminfo | grep MemAvailable
MemAvailable:
|
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Al Viro
|
cbd4a5bcb2 |
d_genocide: move export to definition
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> |
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Al Viro
|
42177007aa |
fold dentry_lock_for_move() into its sole caller and clean it up
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> |
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Al Viro
|
076515fc92 |
make non-exchanging __d_move() copy ->d_parent rather than swap them
Currently d_move(from, to) does the following: * name/parent of from <- old name/parent of to, from hashed there * to is unhashed * name of to is preserved * if from used to be detached, to gets detached * if from used to be attached, parent of to <- old parent of from. That's both user-visibly bogus and complicates reasoning a lot. Much saner semantics would be * name/parent of from <- name/parent of to, from hashed there. * to is unhashed * name/parent of to is unchanged. The price, of course, is that old parent of from might lose a reference. However, * all potentially cross-directory callers of d_move() have both parents pinned directly; typically, dentries themselves are grabbed only after we have grabbed and locked both parents. IOW, the decrement of old parent's refcount in case of d_move() won't reach zero. * __d_move() from d_splice_alias() is done to detached alias. No refcount decrements in that case * __d_move() from __d_unalias() *can* get the refcount to zero. So let's grab a reference to alias' old parent before calling __d_unalias() and dput() it after we'd dropped rename_lock. That does make d_splice_alias() potentially blocking. However, it has no callers in non-sleepable contexts (and the case where we'd grown that dget/dput pair is _very_ rare, so performance is not an issue). Another thing that needs adjustment is unlocking in the end of __d_move(); folded it in. And cleaned the remnants of bogus ordering from the "lock them in the beginning" counterpart - it's never been right and now (well, for 7 years now) we have that thing always serialized on rename_lock anyway. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> |
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Al Viro
|
7a5cf791a7 |
split d_path() and friends into a separate file
Those parts of fs/dcache.c are pretty much self-contained. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> |
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Al Viro
|
43986d63b6 |
dcache.c: trim includes
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> |
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John Ogness
|
8f04da2adb |
fs/dcache: Avoid a try_lock loop in shrink_dentry_list()
shrink_dentry_list() holds dentry->d_lock and needs to acquire dentry->d_inode->i_lock. This cannot be done with a spin_lock() operation because it's the reverse of the regular lock order. To avoid ABBA deadlocks it is done with a trylock loop. Trylock loops are problematic in two scenarios: 1) PREEMPT_RT converts spinlocks to 'sleeping' spinlocks, which are preemptible. As a consequence the i_lock holder can be preempted by a higher priority task. If that task executes the trylock loop it will do so forever and live lock. 2) In virtual machines trylock loops are problematic as well. The VCPU on which the i_lock holder runs can be scheduled out and a task on a different VCPU can loop for a whole time slice. In the worst case this can lead to starvation. Commits |
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Al Viro
|
f657a666fd |
get rid of trylock loop around dentry_kill()
In case when trylock in there fails, deal with it directly in dentry_kill(). Note that in cases when we drop and retake ->d_lock, we need to recheck whether to retain the dentry. Another thing is that dropping/retaking ->d_lock might have ended up with negative dentry turning into positive; that, of course, can happen only once... Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> |
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Al Viro
|
62d9956cef |
handle move to LRU in retain_dentry()
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> |
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Al Viro
|
a338579f2f |
dput(): consolidate the "do we need to retain it?" into an inlined helper
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> |
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Al Viro
|
8b987a46a1 |
split the slow part of lock_parent() off
Turn the "trylock failed" part into uninlined __lock_parent(). Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> |
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Al Viro
|
65d8eb5a8f |
now lock_parent() can't run into killed dentry
all remaining callers hold either a reference or ->i_lock Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> |
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Al Viro
|
3b3f09f48b |
get rid of trylock loop in locking dentries on shrink list
In case of trylock failure don't re-add to the list - drop the locks and carefully get them in the right order. For shrink_dentry_list(), somebody having grabbed a reference to dentry means that we can kick it off-list, so if we find dentry being modified under us we don't need to play silly buggers with retries anyway - off the list it is. The locking logics taken out into a helper of its own; lock_parent() is no longer used for dentries that can be killed under us. [fix from Eric Biggers folded] Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> |
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Al Viro
|
c19457f0ae |
d_delete(): get rid of trylock loop
just grab ->i_lock first; we have a positive dentry, nothing's going to happen to inode Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> |
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John Ogness
|
c1d0c1a2b5 |
fs/dcache: Move dentry_kill() below lock_parent()
A subsequent patch will modify dentry_kill() to call lock_parent(). Move the dentry_kill() implementation "as is" below lock_parent() first. This will help simplify the review of the subsequent patch with dentry_kill() changes. Signed-off-by: John Ogness <john.ogness@linutronix.de> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> |
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John Ogness
|
06080d100d |
fs/dcache: Remove stale comment from dentry_kill()
Commit
|
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Al Viro
|
0632a9ac7b |
take write_seqcount_invalidate() into __d_drop()
... and reorder it with making d_unhashed() true. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> |
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Will Deacon
|
8cc07c808c |
fs: dcache: Use READ_ONCE when accessing i_dir_seq
i_dir_seq is subject to concurrent modification by a cmpxchg or store-release operation, so ensure that the relaxed access in d_alloc_parallel uses READ_ONCE. Reported-by: Peter Zijlstra <peterz@infradead.org> Signed-off-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> |
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Will Deacon
|
015555fd4d |
fs: dcache: Avoid livelock between d_alloc_parallel and __d_add
If d_alloc_parallel runs concurrently with __d_add, it is possible for d_alloc_parallel to continuously retry whilst i_dir_seq has been incremented to an odd value by __d_add: CPU0: __d_add n = start_dir_add(dir); cmpxchg(&dir->i_dir_seq, n, n + 1) == n CPU1: d_alloc_parallel retry: seq = smp_load_acquire(&parent->d_inode->i_dir_seq) & ~1; hlist_bl_lock(b); bit_spin_lock(0, (unsigned long *)b); // Always succeeds CPU0: __d_lookup_done(dentry) hlist_bl_lock bit_spin_lock(0, (unsigned long *)b); // Never succeeds CPU1: if (unlikely(parent->d_inode->i_dir_seq != seq)) { hlist_bl_unlock(b); goto retry; } Since the simple bit_spin_lock used to implement hlist_bl_lock does not provide any fairness guarantees, then CPU1 can starve CPU0 of the lock and prevent it from reaching end_dir_add(dir), therefore CPU1 cannot exit its retry loop because the sequence number always has the bottom bit set. This patch resolves the livelock by not taking hlist_bl_lock in d_alloc_parallel if the sequence counter is odd, since any subsequent masked comparison with i_dir_seq will fail anyway. Cc: Peter Zijlstra <peterz@infradead.org> Cc: Al Viro <viro@zeniv.linux.org.uk> Reported-by: Naresh Madhusudana <naresh.madhusudana@arm.com> Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org> Reviewed-by: Matthew Wilcox <mawilcox@microsoft.com> Signed-off-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> |
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Al Viro
|
3b82140963 |
lock_parent() needs to recheck if dentry got __dentry_kill'ed under it
In case when dentry passed to lock_parent() is protected from freeing only by the fact that it's on a shrink list and trylock of parent fails, we could get hit by __dentry_kill() (and subsequent dentry_kill(parent)) between unlocking dentry and locking presumed parent. We need to recheck that dentry is alive once we lock both it and parent *and* postpone rcu_read_unlock() until after that point. Otherwise we could return a pointer to struct dentry that already is rcu-scheduled for freeing, with ->d_lock held on it; caller's subsequent attempt to unlock it can end up with memory corruption. Cc: stable@vger.kernel.org # 3.12+, counting backports Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> |