Merge remote-tracking branch 'remotes/origin/tmp-0453f563cce0' into msm-5.4

* remotes/origin/tmp-0453f563cce0:
  FROMLIST: pwm: Convert period and duty cycle to u64
  ANDROID: gki_defconfig: FW_CACHE to no
  FROMGIT: firmware_class: make firmware caching configurable
  ANDROID: gki_defconfig: removed CONFIG_PM_WAKELOCKS
  ANDROID: gki_defconfig: enable CONFIG_IKHEADERS as m
  ANDROID: update ABI representation
  FROMLIST: reboot: Export reboot_mode
  FROMLIST: iommu/arm-smmu: Update my email address in MODULE_AUTHOR()
  FROMLIST: iommu/arm-smmu: Allow building as a module
  FROMLIST: iommu/arm-smmu: Unregister IOMMU and bus ops on device removal
  FROMLIST: iommu/arm-smmu-v3: Allow building as a module
  FROMLIST: iommu/arm-smmu-v3: Unregister IOMMU and bus ops on device removal
  FROMLIST: iommu/arm-smmu: Prevent forced unbinding of Arm SMMU drivers
  FROMLIST: Revert "iommu/arm-smmu: Make arm-smmu explicitly non-modular"
  FROMLIST: Revert "iommu/arm-smmu: Make arm-smmu-v3 explicitly non-modular"
  FROMLIST: drivers/iommu: Allow IOMMU bus ops to be unregistered
  FROMLIST: iommu/of: Take a ref to the IOMMU driver during ->of_xlate()
  FROMLIST: drivers/iommu: Take a ref to the IOMMU driver prior to ->add_device()
  FROMLIST: PCI: Export pci_ats_disabled() as a GPL symbol to modules
  FROMLIST: iommu/of: Request ACS from the PCI core when configuring IOMMU linkage
  FROMLIST: drivers/iommu: Export core IOMMU API symbols to permit modular drivers
  FROMGIT: of: property: Add device link support for "iommu-map"
  Revert "FROMLIST: iommu: Export core IOMMU functions to kernel modules"
  Revert "FROMLIST: PCI: Export PCI ACS and DMA searching functions to modules"
  Revert "FROMLIST: of: Export of_phandle_iterator_args() to modules"
  ANDROID: initial branch preparations for 5.4
  Linux 5.4
  cramfs: fix usage on non-MTD device
  Revert "Input: synaptics - enable RMI mode for X1 Extreme 2nd Generation"
  afs: Fix large file support
  afs: Fix possible assert with callbacks from yfs servers
  r8152: avoid to call napi_disable twice
  MAINTAINERS: Add myself as maintainer of virtio-vsock
  udp: drop skb extensions before marking skb stateless
  net: rtnetlink: prevent underflows in do_setvfinfo()
  mm/ksm.c: don't WARN if page is still mapped in remove_stable_node()
  mm/memory_hotplug: don't access uninitialized memmaps in shrink_zone_span()
  Revert "fs: ocfs2: fix possible null-pointer dereferences in ocfs2_xa_prepare_entry()"
  can: m_can_platform: remove unnecessary m_can_class_resume() call
  can: m_can_platform: set net_device structure as driver data
  hv_netvsc: Fix send_table offset in case of a host bug
  hv_netvsc: Fix offset usage in netvsc_send_table()
  net-ipv6: IPV6_TRANSPARENT - check NET_RAW prior to NET_ADMIN
  ANDROID: gki_defconfig: disable FUNCTION_TRACER
  sfc: Only cancel the PPS workqueue if it exists
  nfc: port100: handle command failure cleanly
  drm/i915/fbdev: Restore physical addresses for fb_mmap()
  net-sysfs: fix netdev_queue_add_kobject() breakage
  ANDROID: update ABI representation
  ANDROID: add unstripped modules to the distribution
  Revert "drm/amd/display: enable S/G for RAVEN chip"
  drm/amdgpu: disable gfxoff on original raven
  drm/amdgpu: disable gfxoff when using register read interface
  drm/amd/powerplay: correct fine grained dpm force level setting
  drm/amd/powerplay: issue no PPSMC_MSG_GetCurrPkgPwr on unsupported ASICs
  drm/amdgpu: remove experimental flag for Navi14
  r8152: Re-order napi_disable in rtl8152_close
  net: qca_spi: Move reset_count to struct qcaspi
  net: qca_spi: fix receive buffer size check
  net/ibmvnic: Ignore H_FUNCTION return from H_EOI to tolerate XIVE mode
  Revert "net/ibmvnic: Fix EOI when running in XIVE mode"
  net/mlxfw: Verify FSM error code translation doesn't exceed array size
  net/mlx5: Update the list of the PCI supported devices
  net/mlx5: Fix auto group size calculation
  net/mlx5e: Add missing capability bit check for IP-in-IP
  net/mlx5e: Do not use non-EXT link modes in EXT mode
  net/mlx5e: Fix set vf link state error flow
  net/mlx5: DR, Limit STE hash table enlarge based on bytemask
  net/mlx5: DR, Skip rehash for tables with byte mask zero
  net/mlx5: DR, Fix invalid EQ vector number on CQ creation
  net/mlx5e: Reorder mirrer action parsing to check for encap first
  net/mlx5e: Fix ingress rate configuration for representors
  net/mlx5e: Fix error flow cleanup in mlx5e_tc_tun_create_header_ipv4/6
  s390/qeth: return proper errno on IO error
  s390/qeth: fix potential deadlock on workqueue flush
  ipv6/route: return if there is no fib_nh_gw_family
  net-sysfs: Fix reference count leak in rx|netdev_queue_add_kobject
  arm64: uaccess: Remove uaccess_*_not_uao asm macros
  arm64: uaccess: Ensure PAN is re-enabled after unhandled uaccess fault
  BACKPORT: FROMLIST: pwm: Add support for different PWM output types
  ANDROID: SoC: core: Introduce macro SOC_SINGLE_MULTI_EXT
  ANDROID: usb: gadget: configfs: fix compiler warning
  fork: fix pidfd_poll()'s return type
  PM: QoS: Invalidate frequency QoS requests after removal
  virtio_balloon: fix shrinker count
  virtio_balloon: fix shrinker scan number of pages
  mdio_bus: Fix init if CONFIG_RESET_CONTROLLER=n
  Revert "mdio_bus: fix mdio_register_device when RESET_CONTROLLER is disabled"
  net: hns3: fix a wrong reset interrupt status mask
  net: fec: fix clock count mis-match
  net/sched: act_pedit: fix WARN() in the traffic path
  net: phylink: fix link mode modification in PHY mode
  net: phylink: update documentation on create and destroy
  r8169: disable TSO on a single version of RTL8168c to fix performance
  MAINTAINERS: forcedeth: Change Zhu Yanjun's email address
  taprio: don't reject same mqprio settings
  net/tls: enable sk_msg redirect to tls socket egress
  afs: Fix missing timeout reset
  ANDROID: drivers: gpu: drm: add support to batch commands
  gve: fix dma sync bug where not all pages synced
  drm/i915: make pool objects read-only
  mdio_bus: Fix init if CONFIG_RESET_CONTROLLER=n
  nbd:fix memory leak in nbd_get_socket()
  virtio_console: allocate inbufs in add_port() only if it is needed
  virtio_ring: fix return code on DMA mapping fails
  mdio_bus: fix mdio_register_device when RESET_CONTROLLER is disabled
  net/ipv4: fix sysctl max for fib_multipath_hash_policy
  phy: mdio-sun4i: add missed regulator_disable in remove
  net/mlx4_en: Fix wrong limitation for number of TX rings
  net: sched: ensure opts_len <= IP_TUNNEL_OPTS_MAX in act_tunnel_key
  mlxsw: spectrum_router: Fix determining underlay for a GRE tunnel
  net: atm: Reduce the severity of logging in unlink_clip_vcc
  ANDROID: virtio_blk: Remove BUG_ON for discard/zero ops
  drm/i915: Protect request peeking with RCU
  drm/i915/userptr: Try to acquire the page lock around set_page_dirty()
  drm/i915/pmu: "Frequency" is reported as accumulated cycles
  drm/i915: Preload LUTs if the hw isn't currently using them
  drm/i915: Don't oops in dumb_create ioctl if we have no crtcs
  ANDROID: usb: gadget: configfs: Support multiple android instances
  Linux 5.4-rc8
  net/mlx4_en: fix mlx4 ethtool -N insertion
  Revert "hwrng: core - Freeze khwrng thread during suspend"
  ipmr: Fix skb headroom in ipmr_get_route().
  net: hns3: cleanup of stray struct hns3_link_mode_mapping
  net/smc: fix fastopen for non-blocking connect()
  rds: ib: update WR sizes when bringing up connection
  net: gemini: add missed free_netdev
  net: dsa: tag_8021q: Fix dsa_8021q_restore_pvid for an absent pvid
  seg6: fix skb transport_header after decap_and_validate()
  seg6: fix srh pointer in get_srh()
  net: stmmac: Use the correct style for SPDX License Identifier
  octeontx2-af: Use the correct style for SPDX License Identifier
  mm/debug.c: PageAnon() is true for PageKsm() pages
  mm/debug.c: __dump_page() prints an extra line
  mm/page_io.c: do not free shared swap slots
  mm/memory_hotplug: fix try_offline_node()
  mm,thp: recheck each page before collapsing file THP
  mm: slub: really fix slab walking for init_on_free
  mm: hugetlb: switch to css_tryget() in hugetlb_cgroup_charge_cgroup()
  mm: memcg: switch to css_tryget() in get_mem_cgroup_from_mm()
  lib/xz: fix XZ_DYNALLOC to avoid useless memory reallocations
  mm: fix trying to reclaim unevictable lru page when calling madvise_pageout
  mm: mempolicy: fix the wrong return value and potential pages leak of mbind
  ANDROID: ion: Fix buffer_lock mutex initialization
  Input: synaptics - enable RMI mode for X1 Extreme 2nd Generation
  i2c: core: fix use after free in of_i2c_notify
  i2c: acpi: Force bus speed to 400KHz if a Silead touchscreen is present
  ptp: Extend the test program to check the external time stamp flags.
  mlx5: Reject requests to enable time stamping on both edges.
  igb: Reject requests that fail to enable time stamping on both edges.
  dp83640: Reject requests to enable time stamping on both edges.
  mv88e6xxx: Reject requests to enable time stamping on both edges.
  ptp: Introduce strict checking of external time stamp options.
  renesas: reject unsupported external timestamp flags
  mlx5: reject unsupported external timestamp flags
  igb: reject unsupported external timestamp flags
  dp83640: reject unsupported external timestamp flags
  mv88e6xxx: reject unsupported external timestamp flags
  net: reject PTP periodic output requests with unsupported flags
  ptp: Validate requests to enable time stamping of external signals.
  net: ep93xx_eth: fix mismatch of request_mem_region in remove
  ax88172a: fix information leak on short answers
  selftests: mlxsw: Adjust test to recent changes
  Input: synaptics-rmi4 - destroy F54 poller workqueue when removing
  Input: ff-memless - kill timer in destroy()
  FROMGIT: driver core: Allow device link operations inside sync_state()
  afs: Fix race in commit bulk status fetch
  Revert "ANDROID: Revert "Merge tag 'modules-for-v5.4' of git://git.kernel.org/pub/scm/linux/kernel/git/jeyu/linux""
  sched/uclamp: Fix incorrect condition
  KVM: Add a comment describing the /dev/kvm no_compat handling
  net: hns3: fix ETS bandwidth validation bug
  net: hns3: reallocate SSU' buffer size when pfc_en changes
  net: hns3: add compatible handling for MAC VLAN switch parameter configuration
  ravb: implement MTU change while device is up
  tipc: add back tipc prefix to log messages
  ANDROID: uid_sys_stats: avoid double accounting of dying threads
  ANDROID: drm: edid: add support for additional CEA extension blocks
  ANDROID: include: uapi: drm: add additional drm mode flags
  ANDROID: drivers: gpu: drm: fix bugs encountered while fuzzing
  ANDROID: driver: gpu: drm: add notifier for panel related events
  ANDROID: include: drm: add the definitions for DP Link Compliance tests
  ANDROID: drm: dsi: add two DSI mode flags for BLLP
  ANDROID: include: drm: support unicasting mipi cmds to dsi ctrls
  ANDROID: include: drm: increase DRM max property count to 64
  ANDROID: drivers: gpu: drm: add support for secure framebuffer
  ANDROID: include: uapi: drm: add additional QCOM modifiers
  ANDROID: build kernels with llvm-nm and llvm-objcopy
  drm/amdgpu: fix null pointer deref in firmware header printing
  rsxx: add missed destroy_workqueue calls in remove
  iocost: check active_list of all the ancestors in iocg_activate()
  rbd: silence bogus uninitialized warning in rbd_object_map_update_finish()
  ceph: increment/decrement dio counter on async requests
  ceph: take the inode lock before acquiring cap refs
  ALSA: usb-audio: Fix incorrect size check for processing/extension units
  KVM: x86/mmu: Take slots_lock when using kvm_mmu_zap_all_fast()
  kbuild: tell sparse about the $ARCH
  sparc: vdso: fix build error of vdso32
  block, bfq: deschedule empty bfq_queues not referred by any process
  mmc: sdhci-of-at91: fix quirk2 overwrite
  ALSA: usb-audio: Fix incorrect NULL check in create_yamaha_midi_quirk()
  slcan: Fix memory leak in error path
  io_uring: ensure registered buffer import returns the IO length
  net: cdc_ncm: Signedness bug in cdc_ncm_set_dgram_size()
  io_uring: Fix getting file for timeout
  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
  gpiolib: acpi: Add Terra Pad 1061 to the run_edge_events_on_boot_blacklist
  drm/i915/tgl: MOCS table update
  Revert "drm/i915/ehl: Update MOCS table for EHL"
  slip: Fix memory leak in slip_open error path
  net: usb: qmi_wwan: add support for Foxconn T77W968 LTE modules
  KVM: Forbid /dev/kvm being opened by a compat task when CONFIG_KVM_COMPAT=n
  KVM: X86: Reset the three MSR list number variables to 0 in kvm_init_msr_list()
  selftests: kvm: fix build with glibc >= 2.30
  kvm: x86: disable shattered huge page recovery for PREEMPT_RT.
  drm/sun4i: tcon: Set min division of TCON0_DCLK to 1.
  tools: gpio: Correctly add make dependencies for gpio_utils
  x86/resctrl: Fix potential lockdep warning
  scripts/tools-support-relr.sh: un-quote variables
  Revert "ANDROID: Revert "Merge tag 'modules-for-v5.4' of git://git.kernel.org/pub/scm/linux/kernel/git/jeyu/linux""
  ALSA: pcm: Fix stream lock usage in snd_pcm_period_elapsed()
  ALSA: usb-audio: not submit urb for stopped endpoint
  can: j1939: warn if resources are still linked on destroy
  can: j1939: j1939_can_recv(): add priv refcounting
  can: j1939: transport: j1939_cancel_active_session(): use hrtimer_try_to_cancel() instead of hrtimer_cancel()
  can: j1939: make sure socket is held as long as session exists
  can: j1939: transport: make sure the aborted session will be deactivated only once
  can: j1939: socket: rework socket locking for j1939_sk_release() and j1939_sk_sendmsg()
  can: j1939: main: j1939_ndev_to_priv(): avoid crash if can_ml_priv is NULL
  can: j1939: move j1939_priv_put() into sk_destruct callback
  can: af_can: export can_sock_destruct()
  perf/core: Fix missing static inline on perf_cgroup_switch()
  perf/core: Consistently fail fork on allocation failures
  perf/aux: Disallow aux_output for kernel events
  perf/core: Reattach a misplaced comment
  perf/aux: Fix the aux_output group inheritance fix
  perf/core: Disallow uncore-cgroup events
  sched/pelt: Fix update of blocked PELT ordering
  sched/core: Avoid spurious lock dependencies
  dpaa2-eth: free already allocated channels on probe defer
  Input: cyttsp4_core - fix use after free bug
  Input: synaptics-rmi4 - clear IRQ enables for F54
  Remove VirtualBox guest shared folders filesystem
  net/smc: fix refcount non-blocking connect() -part 2
  drm/i915: update rawclk also on resume
  x86/quirks: Disable HPET on Intel Coffe Lake platforms
  block: check bi_size overflow before merge
  gpio: bd70528: Use correct unit for debounce times
  gpio: max77620: Fixup debounce delays
  KVM: MMU: Do not treat ZONE_DEVICE pages as being reserved
  KVM: VMX: Introduce pi_is_pir_empty() helper
  KVM: VMX: Do not change PID.NDST when loading a blocked vCPU
  KVM: VMX: Consider PID.PIR to determine if vCPU has pending interrupts
  KVM: VMX: Fix comment to specify PID.ON instead of PIR.ON
  KVM: X86: Fix initialization of MSR lists
  xfrm: release device reference for invalid state
  io_uring: make timeout sequence == 0 mean no sequence
  ntp/y2038: Remove incorrect time_t truncation
  mdio_bus: Fix PTR_ERR applied after initialization to constant
  NFC: nxp-nci: Fix NULL pointer dereference after I2C communication error
  mlxsw: core: Enable devlink reload only on probe
  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"
  devlink: Add method for time-stamp on reporter's dump
  net: ethernet: dwmac-sun8i: Use the correct function in exit path
  Btrfs: fix log context list corruption after rename exchange operation
  drm/i915/cmdparser: Fix jump whitelist clearing
  iommu/vt-d: Fix QI_DEV_IOTLB_PFSID and QI_DEV_EIOTLB_PFSID macros
  MAINTAINERS: Update for INTEL IOMMU (VT-d) entry
  KVM: fix placement of refcount initialization
  KVM: Fix NULL-ptr deref after kvm_create_vm fails
  ALSA: hda: hdmi - fix pin setup on Tigerlake
  ALSA: hda: Add Cometlake-S PCI ID
  Revert "Revert "sched: Rework pick_next_task() slow-path""
  Linux 5.4-rc7
  lib: Remove select of inexistant GENERIC_IO
  ecryptfs_lookup_interpose(): lower_dentry->d_parent is not stable either
  ecryptfs_lookup_interpose(): lower_dentry->d_inode is not stable
  ecryptfs: fix unlink and rmdir in face of underlying fs modifications
  audit_get_nd(): don't unlock parent too early
  exportfs_decode_fh(): negative pinned may become positive without the parent locked
  cgroup: don't put ERR_PTR() into fc->root
  tcp: remove redundant new line from tcp_event_sk_skb
  devlink: disallow reload operation during device cleanup
  ALSA: usb-audio: Fix missing error check at mixer resolution test
  ixgbe: need_wakeup flag might not be set for Tx
  i40e: need_wakeup flag might not be set for Tx
  igb/igc: use ktime accessors for skb->tstamp
  i40e: Fix for ethtool -m issue on X722 NIC
  iavf: initialize ITRN registers with correct values
  ice: fix potential infinite loop because loop counter being too small
  qede: fix NULL pointer deref in __qede_remove()
  net: fix data-race in neigh_event_send()
  sched: Fix pick_next_task() vs 'change' pattern race
  sched/core: Fix compilation error when cgroup not selected
  cgroup,writeback: don't switch wbs immediately on dead wbs if the memcg is dead
  vsock/virtio: fix sock refcnt holding during the shutdown
  iwlwifi: pcie: don't consider IV len in A-MSDU
  net: ethernet: octeon_mgmt: Account for second possible VLAN header
  pwm: bcm-iproc: Prevent unloading the driver module while in use
  block: drbd: remove a stray unlock in __drbd_send_protocol()
  cpufreq: intel_pstate: Fix invalid EPB setting
  mac80211: fix station inactive_time shortly after boot
  net/fq_impl: Switch to kvmalloc() for memory allocation
  mac80211: fix ieee80211_txq_setup_flows() failure path
  drm/i915/gvt: fix dropping obj reference twice
  ANDROID: Kconfig.gki: Add SND_SOC_COMPRESS
  ipv4: Fix table id reference in fib_sync_down_addr
  ipv6: fixes rt6_probe() and fib6_nh->last_probe init
  net: hns: Fix the stray netpoll locks causing deadlock in NAPI path
  Revert "ANDROID: Kconfig.gki: Add SND_SOC_COMPRESS"
  net: usb: qmi_wwan: add support for DW5821e with eSIM support
  CDC-NCM: handle incomplete transfer of MTU
  nfc: netlink: fix double device reference drop
  ANDROID: Kconfig.gki: Add SND_SOC_COMPRESS
  ceph: return -EINVAL if given fsc mount option on kernel w/o support
  staging: Fix error return code in vboxsf_fill_super()
  staging: vboxsf: fix dereference of pointer dentry before it is null checked
  staging: vboxsf: Remove unused including <linux/version.h>
  x86/speculation/taa: Fix printing of TAA_MSG_SMT on IBRS_ALL CPUs
  xfrm: Fix memleak on xfrm state destroy
  pinctrl: stmfx: fix valid_mask init sequence
  NFC: st21nfca: fix double free
  net: hns3: add compatible handling for command HCLGE_OPC_PF_RST_DONE
  r8169: fix page read in r8168g_mdio_read
  net: stmmac: Fix the TX IOC in xmit path
  net: stmmac: Fix TSO descriptor with Enhanced Addressing
  net: stmmac: Fix the packet count in stmmac_rx()
  net: stmmac: xgmac: Disable MMC interrupts by default
  net: stmmac: xgmac: Disable Flow Control when 1 or more queues are in AV
  net: stmmac: xgmac: Fix AV Feature detection
  net: stmmac: xgmac: Fix TSA selection
  net: stmmac: xgmac: Only get SPH header len if available
  net: stmmac: selftests: Prevent false positives in filter tests
  net: stmmac: xgmac: bitrev32 returns u32
  net: stmmac: gmac4: bitrev32 returns u32
  SMB3: Fix persistent handles reconnect
  drm/radeon: fix si_enable_smc_cac() failed issue
  drm/amdgpu/renoir: move gfxoff handling into gfx9 module
  drm/amdgpu: add warning for GRBM 1-cycle delay issue in gfx9
  drm/amdgpu: add dummy read by engines for some GCVM status registers in gfx10
  drm/amdgpu: register gpu instance before fan boost feature enablment
  drm/amd/swSMU: fix smu workload bit map error
  net/smc: fix ethernet interface refcounting
  selftests/tls: add test for concurrent recv and send
  net/tls: add a TX lock
  net/tls: don't pay attention to sk_write_pending when pushing partial records
  blkcg: make blkcg_print_stat() print stats only for online blkgs
  drm/shmem: Add docbook comments for drm_gem_shmem_object madvise fields
  net: mscc: ocelot: fix __ocelot_rmw_ix prototype
  bpf, offload: Unlock on error in bpf_offload_dev_create()
  net: mscc: ocelot: fix NULL pointer on LAG slave removal
  net: mscc: ocelot: don't handle netdev events for other netdevs
  net/mlx5e: Use correct enum to determine uplink port
  net/mlx5: DR, Fix memory leak during rule creation
  net/mlx5: DR, Fix memory leak in modify action destroy
  net/mlx5e: Fix eswitch debug print of max fdb flow
  HID: wacom: generic: Treat serial number and related fields as unsigned
  drm/amdgpu: add navi14 PCI ID
  Revert "drm/amd/display: setting the DIG_MODE to the correct value."
  drm/amd/display: Add ENGINE_ID_DIGD condition check for Navi14
  drm/amdgpu: dont schedule jobs while in reset
  drm/amdgpu/arcturus: properly set BANK_SELECT and FRAGMENT_SIZE
  arm64: Do not mask out PTE_RDONLY in pte_same()
  ANDROID: nf: IDLETIMER: Fix possible use before initialization in idletimer_resume
  ANDROID: gki_defconfig: enable FW_LOADER configs
  net: bcmgenet: reapply manual settings to the PHY
  Revert "net: bcmgenet: soft reset 40nm EPHYs before MAC init"
  net: bcmgenet: use RGMII loopback for MAC reset
  drm/atomic: fix self-refresh helpers crtc state dereference
  RDMA/hns: Correct the value of srq_desc_size
  RDMA/hns: Correct the value of HNS_ROCE_HEM_CHUNK_LEN
  configfs: calculate the depth of parent item
  IB/hfi1: TID RDMA WRITE should not return IB_WC_RNR_RETRY_EXC_ERR
  IB/hfi1: Calculate flow weight based on QP MTU for TID RDMA
  IB/hfi1: Ensure r_tid_ack is valid before building TID RDMA ACK packet
  IB/hfi1: Ensure full Gen3 speed in a Gen4 system
  ALSA: timer: Fix incorrectly assigned timer instance
  mm: memcontrol: fix network errors from failing __GFP_ATOMIC charges
  mm/memory_hotplug: fix updating the node span
  scripts/gdb: fix debugging modules compiled with hot/cold partitioning
  mm: slab: make page_cgroup_ino() to recognize non-compound slab pages properly
  MAINTAINERS: update information for "MEMORY MANAGEMENT"
  dump_stack: avoid the livelock of the dump_lock
  zswap: add Vitaly to the maintainers list
  mm/page_alloc.c: ratelimit allocation failure warnings more aggressively
  mm/khugepaged: fix might_sleep() warn with CONFIG_HIGHPTE=y
  mm, vmstat: reduce zone->lock holding time by /proc/pagetypeinfo
  mm, vmstat: hide /proc/pagetypeinfo from normal users
  mm/mmu_notifiers: use the right return code for WARN_ON
  ocfs2: protect extent tree in ocfs2_prepare_inode_for_write()
  mm: thp: handle page cache THP correctly in PageTransCompoundMap
  mm, meminit: recalculate pcpu batch and high limits after init completes
  mm/gup_benchmark: fix MAP_HUGETLB case
  mm: memcontrol: fix NULL-ptr deref in percpu stats flush
  MAINTAINERS: update Cavium ThunderX2 maintainers
  ASoC: SOF: topology: Fix bytes control size checks
  ARM: dts: stm32: change joystick pinctrl definition on stm32mp157c-ev1
  ARM: dts: stm32: remove OV5640 pinctrl definition on stm32mp157c-ev1
  ARM: dts: stm32: Fix CAN RAM mapping on stm32mp157c
  ARM: dts: stm32: relax qspi pins slew-rate for stm32mp157
  scsi: core: Handle drivers which set sg_tablesize to zero
  scsi: qla2xxx: fix NPIV tear down process
  scsi: sd_zbc: Fix sd_zbc_complete()
  Documentation: TLS: Add missing counter description
  NFC: fdp: fix incorrect free object
  net: prevent load/store tearing on sk->sk_stamp
  net: qualcomm: rmnet: Fix potential UAF when unregistering
  net/tls: fix sk_msg trim on fallback to copy mode
  mlx4_core: fix wrong comment about the reason of subtract one from the max_cqes
  net: dsa: bcm_sf2: Fix driver removal
  net: sched: prevent duplicate flower rules from tcf_proto destroy race
  net: hns3: Use the correct style for SPDX License Identifier
  bonding: fix state transition issue in link monitoring
  taprio: fix panic while hw offload sched list swap
  FROMLIST: overlayfs: override_creds=off option bypass creator_cred
  FROMLIST: overlayfs: internal getxattr operations without sepolicy checking
  FROMLIST: overlayfs: handle XATTR_NOSECURITY flag for get xattr method
  FROMLIST: Add flags option to get xattr method paired to __vfs_getxattr
  FROMLIST: afs: xattr: use scnprintf
  nvme: change nvme_passthru_cmd64 to explicitly mark rsvd
  drm/i915/gen8+: Add RC6 CTX corruption WA
  drm/i915: Lower RM timeout to avoid DSI hard hangs
  drm/i915/cmdparser: Ignore Length operands during command matching
  drm/i915/cmdparser: Add support for backward jumps
  drm/i915/cmdparser: Use explicit goto for error paths
  drm/i915: Add gen9 BCS cmdparsing
  drm/i915: Allow parsing of unsized batches
  drm/i915: Support ro ppgtt mapped cmdparser shadow buffers
  drm/i915: Add support for mandatory cmdparsing
  drm/i915: Remove Master tables from cmdparser
  drm/i915: Disable Secure Batches for gen6+
  drm/i915: Rename gen7 cmdparser tables
  ALSA: hda: hdmi - add Tigerlake support
  ASoC: max98373: replace gpio_request with devm_gpio_request
  ASoC: stm32: sai: add restriction on mmap support
  watchdog: bd70528: Add MODULE_ALIAS to allow module auto loading
  watchdog: imx_sc_wdt: Pretimeout should follow SCU firmware format
  watchdog: meson: Fix the wrong value of left time
  watchdog: pm8916_wdt: fix pretimeout registration flow
  watchdog: cpwd: fix build regression
  nvme-multipath: fix crash in nvme_mpath_clear_ctrl_paths
  nvme-rdma: fix a segmentation fault during module unload
  clone3: validate stack arguments
  ceph: don't allow copy_file_range when stripe_count != 1
  ceph: don't try to handle hashed dentries in non-O_CREAT atomic_open
  ALSA: hda/ca0132 - Fix possible workqueue stall
  scripts/nsdeps: make sure to pass all module source files to spatch
  perf tools: Fix time sorting
  can: don't use deprecated license identifiers
  can: mcp251x: mcp251x_restart_work_handler(): Fix potential force_quit race condition
  perf tools: Remove unused trace_find_next_event()
  perf scripting engines: Iterate on tep event arrays directly
  FROMGIT: of: property: Skip adding device links to suppliers that aren't devices
  x86/tsc: Respect tsc command line paraemeter for clocksource_tsc_early
  Input: synaptics-rmi4 - remove unused result_bits mask
  Input: synaptics-rmi4 - do not consume more data than we have (F11, F12)
  Input: synaptics-rmi4 - disable the relative position IRQ in the F12 driver
  Input: synaptics-rmi4 - fix video buffer size
  x86/dumpstack/64: Don't evaluate exception stacks before setup
  irq/irqdomain: Update __irq_domain_alloc_fwnode() function documentation
  x86/apic/32: Avoid bogus LDR warnings
  timekeeping/vsyscall: Update VDSO data unconditionally
  drm/i915/dp: Do not switch aux to TBT mode for non-TC ports
  drm/i915: Avoid HPD poll detect triggering a new detect cycle
  can: j1939: transport: j1939_xtp_rx_eoma_one(): Add sanity check for correct total message size
  can: j1939: transport: j1939_session_fresh_new(): make sure EOMA is send with the total message size set
  can: j1939: fix memory leak if filters was set
  can: j1939: fix resource leak of skb on error return paths
  can: ti_hecc: add missing state changes
  can: ti_hecc: properly report state changes
  can: ti_hecc: add fifo overflow error reporting
  can: ti_hecc: release the mailbox a bit earlier
  can: ti_hecc: keep MIM and MD set
  can: ti_hecc: ti_hecc_stop(): stop the CPK on down
  can: ti_hecc: ti_hecc_error(): increase error counters if skb enqueueing via can_rx_offload_queue_sorted() fails
  can: flexcan: increase error counters if skb enqueueing via can_rx_offload_queue_sorted() fails
  can: rx-offload: can_rx_offload_irq_offload_fifo(): continue on error
  can: rx-offload: can_rx_offload_irq_offload_timestamp(): continue on error
  can: rx-offload: can_rx_offload_offload_one(): use ERR_PTR() to propagate error value in case of errors
  can: rx-offload: can_rx_offload_offload_one(): increment rx_fifo_errors on queue overflow or OOM
  can: rx-offload: can_rx_offload_offload_one(): do not increase the skb_queue beyond skb_queue_len_max
  can: rx-offload: can_rx_offload_queue_tail(): fix error handling, avoid skb mem leak
  can: rx-offload: can_rx_offload_queue_sorted(): fix error handling, avoid skb mem leak
  can: xilinx_can: Fix flags field initialization for axi can
  can: c_can: C_CAN: add bus recovery events
  can: c_can: D_CAN: c_can_chip_config(): perform a sofware reset on open
  can: c_can: c_can_poll(): only read status register after status IRQ
  can: peak_usb: report bus recovery as well
  can: peak_usb: fix slab info leak
  can: peak_usb: fix a potential out-of-sync while decoding packets
  can: flexcan: disable completely the ECC mechanism
  can: usb_8dev: fix use-after-free on disconnect
  can: mcba_usb: fix use-after-free on disconnect
  can: gs_usb: gs_can_open(): prevent memory leak
  can: dev: add missing of_node_put() after calling of_get_child_by_name()
  btrfs: un-deprecate ioctls START_SYNC and WAIT_SYNC
  btrfs: save i_size to avoid double evaluation of i_size_read in compress_file_range
  stacktrace: Don't skip first entry on noncurrent tasks
  netfilter: nf_tables_offload: skip EBUSY on chain update
  netfilter: nf_tables: bogus EOPNOTSUPP on basechain update
  bridge: ebtables: don't crash when using dnat target in output chains
  netfilter: nf_tables: fix unexpected EOPNOTSUPP error
  netfilter: nf_tables: Align nft_expr private data to 64-bit
  netfilter: ipset: Fix nla_policies to fully support NL_VALIDATE_STRICT
  netfilter: ipset: Copy the right MAC address in hash:ip,mac IPv6 sets
  netfilter: ipset: Fix an error code in ip_set_sockfn_get()
  dccp: do not leak jiffies on the wire
  net: fec: add missed clk_disable_unprepare in remove
  Documentation: Add ITLB_MULTIHIT documentation
  kvm: x86: mmu: Recovery of shattered NX large pages
  MAINTAINERS: Remove Kevin as maintainer of BMIPS generic platforms
  clk: ti: clkctrl: Fix failed to enable error with double udelay timeout
  clk: ti: dra7-atl-clock: Remove ti_clk_add_alias call
  netfilter: nf_tables_offload: check for register data length mismatches
  intel_th: pci: Add Jasper Lake PCH support
  intel_th: pci: Add Comet Lake PCH support
  intel_th: msu: Fix possible memory leak in mode_store()
  intel_th: msu: Fix overflow in shift of an unsigned int
  intel_th: msu: Fix missing allocation failure check on a kstrndup
  intel_th: msu: Fix an uninitialized mutex
  intel_th: gth: Fix the window switching sequence
  ASoC: hdac_hda: fix race in device removal
  kvm: Add helper function for creating VM worker threads
  kvm: mmu: ITLB_MULTIHIT mitigation
  cpu/speculation: Uninline and export CPU mitigations helpers
  x86/cpu: Add Tremont to the cpu vulnerability whitelist
  x86/bugs: Add ITLB_MULTIHIT bug infrastructure
  fbdev: c2p: Fix link failure on non-inlining
  ALSA: bebob: fix to detect configured source of sampling clock for Focusrite Saffire Pro i/o series
  arm64: dts: zii-ultra: fix ARM regulator GPIO handle
  Revert "gpio: merrifield: Pass irqchip when adding gpiochip"
  Revert "gpio: merrifield: Restore use of irq_base"
  Revert "gpio: merrifield: Move hardware initialization to callback"
  x86/resctrl: Prevent NULL pointer dereference when reading mondata
  idr: Fix idr_alloc_u32 on 32-bit systems
  idr: Fix integer overflow in idr_for_each_entry
  HID: i2c-hid: Send power-on command after reset
  radix tree: Remove radix_tree_iter_find
  idr: Fix idr_get_next_ul race with idr_remove
  powerpc/bpf: Fix tail call implementation
  MIPS: SGI-IP27: fix exception handler replication
  bpf: Change size to u64 for bpf_map_{area_alloc, charge_init}()
  samples/bpf: fix build by setting HAVE_ATTR_TEST to zero
  perf tools: Make usage of test_attr__* optional for perf-sys.h
  bpf: Allow narrow loads of bpf_sysctl fields with offset > 0
  staging: Add VirtualBox guest shared folder (vboxsf) support
  ceph: add missing check in d_revalidate snapdir handling
  ceph: fix RCU case handling in ceph_d_revalidate()
  ceph: fix use-after-free in __ceph_remove_cap()
  bpf, doc: Add Andrii as official reviewer to BPF subsystem
  ARM: sunxi: Fix CPU powerdown on A83T
  ARM: dts: sun8i-a83t-tbs-a711: Fix WiFi resume from suspend
  clk: sunxi-ng: a80: fix the zero'ing of bits 16 and 18
  clk: sunxi: Fix operator precedence in sunxi_divs_clk_setup
  clk: ast2600: Fix enabling of clocks
  clk: at91: avoid sleeping early
  ASoC: rockchip: rockchip_max98090: Enable SHDN to fix headset detection
  ASoC: ti: sdma-pcm: Add back the flags parameter for non standard dma names
  ASoC: SOF: ipc: Fix memory leak in sof_set_get_large_ctrl_data
  ASoC: SOF: Fix memory leak in sof_dfsentry_write
  ASoC: SOF: Intel: hda-stream: fix the CONFIG_ prefix missing
  arm64: dts: imx8mn: fix compatible string for sdma
  arm64: dts: imx8mm: fix compatible string for sdma
  reset: fix reset_control_ops kerneldoc comment
  clk: imx8m: Use SYS_PLL1_800M as intermediate parent of CLK_ARM
  x86/tsx: Add config options to set tsx=on|off|auto
  x86/speculation/taa: Add documentation for TSX Async Abort
  x86/tsx: Add "auto" option to the tsx= cmdline parameter
  kvm/x86: Export MDS_NO=0 to guests when TSX is enabled
  x86/speculation/taa: Add sysfs reporting for TSX Async Abort
  x86/speculation/taa: Add mitigation for TSX Async Abort
  x86/cpu: Add a "tsx=" cmdline option with TSX disabled by default
  x86/cpu: Add a helper function x86_read_arch_cap_msr()
  x86/msr: Add the IA32_TSX_CTRL MSR
  ARM: dts: imx6-logicpd: Re-enable SNVS power key
  iio: adc: stm32-adc: fix stopping dma
  soc: imx: gpc: fix initialiser format
  ARM: dts: imx6qdl-sabreauto: Fix storm of accelerometer interrupts
  Btrfs: fix race leading to metadata space leak after task received signal
  btrfs: tree-checker: Fix wrong check on max devid
  btrfs: Consider system chunk array size for new SYSTEM chunks
  pinctrl: cherryview: Allocate IRQ chip dynamic
  clk: samsung: exynos5420: Preserve PLL configuration during suspend/resume
  arm64: dts: ls1028a: fix a compatible issue
  autofs: fix a leak in autofs_expire_indirect()
  soundwire: slave: fix scanf format
  reset: fix reset_control_get_exclusive kerneldoc comment
  reset: fix reset_control_lookup kerneldoc comment
  reset: fix of_reset_control_get_count kerneldoc comment
  reset: fix of_reset_simple_xlate kerneldoc comment
  ASoC: kirkwood: fix device remove ordering
  ASoC: rsnd: dma: fix SSI9 4/5/6/7 busif dma address
  ASoC: hdmi-codec: drop mutex locking again
  ASoC: kirkwood: fix external clock probe defer
  clk: samsung: exynos542x: Move G3D subsystem clocks to its sub-CMU
  clk: samsung: exynos5433: Fix error paths
  tools: gpio: Use !building_out_of_srctree to determine srctree
  iio: imu: inv_mpu6050: fix no data on MPU6050
  reset: Fix memory leak in reset_control_array_put()
  aio: Fix io_pgetevents() struct __compat_aio_sigset layout
  pinctrl: cherryview: Fix irq_valid_mask calculation
  ASoC: compress: fix unsigned integer overflow check
  ASoC: msm8916-wcd-analog: Fix RX1 selection in RDAC2 MUX
  pinctrl: intel: Avoid potential glitches if pin is in GPIO mode
  soundwire: intel: fix intel_register_dai PDI offsets and numbers
  interconnect: Add locking in icc_set_tag()
  interconnect: qcom: Fix icc_onecell_data allocation
  clocksource/drivers/sh_mtu2: Do not loop using platform_get_irq_by_name()
  fs/namespace.c: fix use-after-free of mount in mnt_warn_timestamp_expiry()
  clocksource/drivers/mediatek: Fix error handling
  soundwire: depend on ACPI || OF
  soundwire: depend on ACPI
  iio: srf04: fix wrong limitation in distance measuring
  iio: imu: adis16480: make sure provided frequency is positive
  cgroup: freezer: call cgroup_enter_frozen() with preemption disabled in ptrace_stop()
  thunderbolt: Drop unnecessary read when writing LC command in Ice Lake
  thunderbolt: Fix lockdep circular locking depedency warning
  thunderbolt: Read DP IN adapter first two dwords in one go
  clk: at91: sam9x60: fix programmable clock
  clk: meson: g12a: set CLK_MUX_ROUND_CLOSEST on the cpu clock muxes
  clk: meson: g12a: fix cpu clock rate setting
  clk: meson: gxbb: let sar_adc_clk_div set the parent clock rate
  XArray: Fix xas_next() with a single entry at 0

Change-Id: I594a629aca56b3ff5a224d65f0d8d79fe4f4f34b
Signed-off-by: Raghavendra Rao Ananta <rananta@codeaurora.org>
This commit is contained in:
Raghavendra Rao Ananta 2019-11-26 16:57:10 -08:00
commit 43dee37fa9
668 changed files with 115929 additions and 108192 deletions

View file

@ -351,12 +351,12 @@ static int audit_get_nd(struct audit_watch *watch, struct path *parent)
struct dentry *d = kern_path_locked(watch->path, parent);
if (IS_ERR(d))
return PTR_ERR(d);
inode_unlock(d_backing_inode(parent->dentry));
if (d_is_positive(d)) {
/* update watch filter fields */
watch->dev = d->d_sb->s_dev;
watch->ino = d_backing_inode(d)->i_ino;
}
inode_unlock(d_backing_inode(parent->dentry));
dput(d);
return 0;
}

View file

@ -1311,12 +1311,12 @@ static bool sysctl_is_valid_access(int off, int size, enum bpf_access_type type,
return false;
switch (off) {
case offsetof(struct bpf_sysctl, write):
case bpf_ctx_range(struct bpf_sysctl, write):
if (type != BPF_READ)
return false;
bpf_ctx_record_field_size(info, size_default);
return bpf_ctx_narrow_access_ok(off, size, size_default);
case offsetof(struct bpf_sysctl, file_pos):
case bpf_ctx_range(struct bpf_sysctl, file_pos):
if (type == BPF_READ) {
bpf_ctx_record_field_size(info, size_default);
return bpf_ctx_narrow_access_ok(off, size, size_default);

View file

@ -678,8 +678,10 @@ bpf_offload_dev_create(const struct bpf_prog_offload_ops *ops, void *priv)
down_write(&bpf_devs_lock);
if (!offdevs_inited) {
err = rhashtable_init(&offdevs, &offdevs_params);
if (err)
if (err) {
up_write(&bpf_devs_lock);
return ERR_PTR(err);
}
offdevs_inited = true;
}
up_write(&bpf_devs_lock);

View file

@ -126,7 +126,7 @@ static struct bpf_map *find_and_alloc_map(union bpf_attr *attr)
return map;
}
void *bpf_map_area_alloc(size_t size, int numa_node)
void *bpf_map_area_alloc(u64 size, int numa_node)
{
/* We really just want to fail instead of triggering OOM killer
* under memory pressure, therefore we set __GFP_NORETRY to kmalloc,
@ -141,6 +141,9 @@ void *bpf_map_area_alloc(size_t size, int numa_node)
const gfp_t flags = __GFP_NOWARN | __GFP_ZERO;
void *area;
if (size >= SIZE_MAX)
return NULL;
if (size <= (PAGE_SIZE << PAGE_ALLOC_COSTLY_ORDER)) {
area = kmalloc_node(size, GFP_USER | __GFP_NORETRY | flags,
numa_node);
@ -197,7 +200,7 @@ static void bpf_uncharge_memlock(struct user_struct *user, u32 pages)
atomic_long_sub(pages, &user->locked_vm);
}
int bpf_map_charge_init(struct bpf_map_memory *mem, size_t size)
int bpf_map_charge_init(struct bpf_map_memory *mem, u64 size)
{
u32 pages = round_up(size, PAGE_SIZE) >> PAGE_SHIFT;
struct user_struct *user;

View file

@ -2119,11 +2119,12 @@ int cgroup_do_get_tree(struct fs_context *fc)
nsdentry = kernfs_node_dentry(cgrp->kn, sb);
dput(fc->root);
fc->root = nsdentry;
if (IS_ERR(nsdentry)) {
ret = PTR_ERR(nsdentry);
deactivate_locked_super(sb);
ret = PTR_ERR(nsdentry);
nsdentry = NULL;
}
fc->root = nsdentry;
}
if (!ctx->kfc.new_sb_created)

View file

@ -2430,7 +2430,18 @@ void __init boot_cpu_hotplug_init(void)
this_cpu_write(cpuhp_state.state, CPUHP_ONLINE);
}
enum cpu_mitigations cpu_mitigations __ro_after_init = CPU_MITIGATIONS_AUTO;
/*
* These are used for a global "mitigations=" cmdline option for toggling
* optional CPU mitigations.
*/
enum cpu_mitigations {
CPU_MITIGATIONS_OFF,
CPU_MITIGATIONS_AUTO,
CPU_MITIGATIONS_AUTO_NOSMT,
};
static enum cpu_mitigations cpu_mitigations __ro_after_init =
CPU_MITIGATIONS_AUTO;
static int __init mitigations_parse_cmdline(char *arg)
{
@ -2447,3 +2458,17 @@ static int __init mitigations_parse_cmdline(char *arg)
return 0;
}
early_param("mitigations", mitigations_parse_cmdline);
/* mitigations=off */
bool cpu_mitigations_off(void)
{
return cpu_mitigations == CPU_MITIGATIONS_OFF;
}
EXPORT_SYMBOL_GPL(cpu_mitigations_off);
/* mitigations=auto,nosmt */
bool cpu_mitigations_auto_nosmt(void)
{
return cpu_mitigations == CPU_MITIGATIONS_AUTO_NOSMT;
}
EXPORT_SYMBOL_GPL(cpu_mitigations_auto_nosmt);

View file

@ -1036,7 +1036,7 @@ perf_cgroup_set_timestamp(struct task_struct *task,
{
}
void
static inline void
perf_cgroup_switch(struct task_struct *task, struct task_struct *next)
{
}
@ -10540,6 +10540,15 @@ perf_event_alloc(struct perf_event_attr *attr, int cpu,
goto err_ns;
}
/*
* Disallow uncore-cgroup events, they don't make sense as the cgroup will
* be different on other CPUs in the uncore mask.
*/
if (pmu->task_ctx_nr == perf_invalid_context && cgroup_fd != -1) {
err = -EINVAL;
goto err_pmu;
}
if (event->attr.aux_output &&
!(pmu->capabilities & PERF_PMU_CAP_AUX_OUTPUT)) {
err = -EOPNOTSUPP;
@ -11331,8 +11340,11 @@ perf_event_create_kernel_counter(struct perf_event_attr *attr, int cpu,
int err;
/*
* Get the target context (task or percpu):
* Grouping is not supported for kernel events, neither is 'AUX',
* make sure the caller's intentions are adjusted.
*/
if (attr->aux_output)
return ERR_PTR(-EINVAL);
event = perf_event_alloc(attr, cpu, task, NULL, NULL,
overflow_handler, context, -1);
@ -11344,6 +11356,9 @@ perf_event_create_kernel_counter(struct perf_event_attr *attr, int cpu,
/* Mark owner so we could distinguish it from user events. */
event->owner = TASK_TOMBSTONE;
/*
* Get the target context (task or percpu):
*/
ctx = find_get_context(event->pmu, task, event);
if (IS_ERR(ctx)) {
err = PTR_ERR(ctx);
@ -11795,7 +11810,7 @@ inherit_event(struct perf_event *parent_event,
GFP_KERNEL);
if (!child_ctx->task_ctx_data) {
free_event(child_event);
return NULL;
return ERR_PTR(-ENOMEM);
}
}
@ -11898,7 +11913,7 @@ static int inherit_group(struct perf_event *parent_event,
if (IS_ERR(child_ctr))
return PTR_ERR(child_ctr);
if (sub->aux_event == parent_event &&
if (sub->aux_event == parent_event && child_ctr &&
!perf_get_aux_event(child_ctr, leader))
return -EINVAL;
}

View file

@ -1711,11 +1711,11 @@ static void pidfd_show_fdinfo(struct seq_file *m, struct file *f)
/*
* Poll support for process exit notification.
*/
static unsigned int pidfd_poll(struct file *file, struct poll_table_struct *pts)
static __poll_t pidfd_poll(struct file *file, struct poll_table_struct *pts)
{
struct task_struct *task;
struct pid *pid = file->private_data;
int poll_flags = 0;
__poll_t poll_flags = 0;
poll_wait(file, &pid->wait_pidfd, pts);
@ -1727,7 +1727,7 @@ static unsigned int pidfd_poll(struct file *file, struct poll_table_struct *pts)
* group, then poll(2) should block, similar to the wait(2) family.
*/
if (!task || (task->exit_state && thread_group_empty(task)))
poll_flags = POLLIN | POLLRDNORM;
poll_flags = EPOLLIN | EPOLLRDNORM;
rcu_read_unlock();
return poll_flags;
@ -2568,7 +2568,35 @@ noinline static int copy_clone_args_from_user(struct kernel_clone_args *kargs,
return 0;
}
static bool clone3_args_valid(const struct kernel_clone_args *kargs)
/**
* clone3_stack_valid - check and prepare stack
* @kargs: kernel clone args
*
* Verify that the stack arguments userspace gave us are sane.
* In addition, set the stack direction for userspace since it's easy for us to
* determine.
*/
static inline bool clone3_stack_valid(struct kernel_clone_args *kargs)
{
if (kargs->stack == 0) {
if (kargs->stack_size > 0)
return false;
} else {
if (kargs->stack_size == 0)
return false;
if (!access_ok((void __user *)kargs->stack, kargs->stack_size))
return false;
#if !defined(CONFIG_STACK_GROWSUP) && !defined(CONFIG_IA64)
kargs->stack += kargs->stack_size;
#endif
}
return true;
}
static bool clone3_args_valid(struct kernel_clone_args *kargs)
{
/*
* All lower bits of the flag word are taken.
@ -2588,6 +2616,9 @@ static bool clone3_args_valid(const struct kernel_clone_args *kargs)
kargs->exit_signal)
return false;
if (!clone3_stack_valid(kargs))
return false;
return true;
}

View file

@ -51,7 +51,7 @@ EXPORT_SYMBOL_GPL(irqchip_fwnode_ops);
* @type: Type of irqchip_fwnode. See linux/irqdomain.h
* @name: Optional user provided domain name
* @id: Optional user provided id if name != NULL
* @data: Optional user-provided data
* @pa: Optional user-provided physical address
*
* Allocate a struct irqchip_fwid, and return a poiner to the embedded
* fwnode_handle (or NULL on failure).

View file

@ -545,12 +545,20 @@ static const char *kernel_symbol_name(const struct kernel_symbol *sym)
#endif
}
static int cmp_name(const void *va, const void *vb)
static const char *kernel_symbol_namespace(const struct kernel_symbol *sym)
{
const char *a;
const struct kernel_symbol *b;
a = va; b = vb;
return strcmp(a, kernel_symbol_name(b));
#ifdef CONFIG_HAVE_ARCH_PREL32_RELOCATIONS
if (!sym->namespace_offset)
return NULL;
return offset_to_ptr(&sym->namespace_offset);
#else
return sym->namespace;
#endif
}
static int cmp_name(const void *name, const void *sym)
{
return strcmp(name, kernel_symbol_name(sym));
}
static bool find_exported_symbol_in_section(const struct symsearch *syms,
@ -1380,6 +1388,41 @@ static inline int same_magic(const char *amagic, const char *bmagic,
}
#endif /* CONFIG_MODVERSIONS */
static char *get_modinfo(const struct load_info *info, const char *tag);
static char *get_next_modinfo(const struct load_info *info, const char *tag,
char *prev);
static int verify_namespace_is_imported(const struct load_info *info,
const struct kernel_symbol *sym,
struct module *mod)
{
const char *namespace;
char *imported_namespace;
namespace = kernel_symbol_namespace(sym);
if (namespace) {
imported_namespace = get_modinfo(info, "import_ns");
while (imported_namespace) {
if (strcmp(namespace, imported_namespace) == 0)
return 0;
imported_namespace = get_next_modinfo(
info, "import_ns", imported_namespace);
}
#ifdef CONFIG_MODULE_ALLOW_MISSING_NAMESPACE_IMPORTS
pr_warn(
#else
pr_err(
#endif
"%s: module uses symbol (%s) from namespace %s, but does not import it.\n",
mod->name, kernel_symbol_name(sym), namespace);
#ifndef CONFIG_MODULE_ALLOW_MISSING_NAMESPACE_IMPORTS
return -EINVAL;
#endif
}
return 0;
}
/* Resolve a symbol for this module. I.e. if we find one, record usage. */
static const struct kernel_symbol *resolve_symbol(struct module *mod,
const struct load_info *info,
@ -1408,6 +1451,12 @@ static const struct kernel_symbol *resolve_symbol(struct module *mod,
goto getname;
}
err = verify_namespace_is_imported(info, sym, mod);
if (err) {
sym = ERR_PTR(err);
goto getname;
}
err = ref_module(mod, owner);
if (err) {
sym = ERR_PTR(err);
@ -2482,7 +2531,8 @@ static char *next_string(char *string, unsigned long *secsize)
return string;
}
static char *get_modinfo(struct load_info *info, const char *tag)
static char *get_next_modinfo(const struct load_info *info, const char *tag,
char *prev)
{
char *p;
unsigned int taglen = strlen(tag);
@ -2493,13 +2543,25 @@ static char *get_modinfo(struct load_info *info, const char *tag)
* get_modinfo() calls made before rewrite_section_headers()
* must use sh_offset, as sh_addr isn't set!
*/
for (p = (char *)info->hdr + infosec->sh_offset; p; p = next_string(p, &size)) {
char *modinfo = (char *)info->hdr + infosec->sh_offset;
if (prev) {
size -= prev - modinfo;
modinfo = next_string(prev, &size);
}
for (p = modinfo; p; p = next_string(p, &size)) {
if (strncmp(p, tag, taglen) == 0 && p[taglen] == '=')
return p + taglen + 1;
}
return NULL;
}
static char *get_modinfo(const struct load_info *info, const char *tag)
{
return get_next_modinfo(info, tag, NULL);
}
static void setup_modinfo(struct module *mod, struct load_info *info)
{
struct module_attribute *attr;

View file

@ -814,6 +814,8 @@ EXPORT_SYMBOL_GPL(freq_qos_update_request);
*/
int freq_qos_remove_request(struct freq_qos_request *req)
{
int ret;
if (!req)
return -EINVAL;
@ -821,7 +823,11 @@ int freq_qos_remove_request(struct freq_qos_request *req)
"%s() called for unknown object\n", __func__))
return -EINVAL;
return freq_qos_apply(req, PM_QOS_REMOVE_REQ, PM_QOS_DEFAULT_VALUE);
ret = freq_qos_apply(req, PM_QOS_REMOVE_REQ, PM_QOS_DEFAULT_VALUE);
req->qos = NULL;
req->type = 0;
return ret;
}
EXPORT_SYMBOL_GPL(freq_qos_remove_request);

View file

@ -32,7 +32,9 @@ EXPORT_SYMBOL(cad_pid);
#define DEFAULT_REBOOT_MODE
#endif
enum reboot_mode reboot_mode DEFAULT_REBOOT_MODE;
EXPORT_SYMBOL_GPL(reboot_mode);
enum reboot_mode panic_reboot_mode = REBOOT_UNDEFINED;
EXPORT_SYMBOL_GPL(panic_reboot_mode);
/*
* This variable is used privately to keep track of whether or not

View file

@ -1065,7 +1065,7 @@ uclamp_update_active(struct task_struct *p, enum uclamp_id clamp_id)
* affecting a valid clamp bucket, the next time it's enqueued,
* it will already see the updated clamp bucket value.
*/
if (!p->uclamp[clamp_id].active) {
if (p->uclamp[clamp_id].active) {
uclamp_rq_dec_id(rq, p, clamp_id);
uclamp_rq_inc_id(rq, p, clamp_id);
}
@ -1073,6 +1073,7 @@ uclamp_update_active(struct task_struct *p, enum uclamp_id clamp_id)
task_rq_unlock(rq, p, &rf);
}
#ifdef CONFIG_UCLAMP_TASK_GROUP
static inline void
uclamp_update_active_tasks(struct cgroup_subsys_state *css,
unsigned int clamps)
@ -1091,7 +1092,6 @@ uclamp_update_active_tasks(struct cgroup_subsys_state *css,
css_task_iter_end(&it);
}
#ifdef CONFIG_UCLAMP_TASK_GROUP
static void cpu_util_update_eff(struct cgroup_subsys_state *css);
static void uclamp_update_root_tg(void)
{
@ -3919,7 +3919,7 @@ pick_next_task(struct rq *rq, struct task_struct *prev, struct rq_flags *rf)
p = fair_sched_class.pick_next_task(rq, prev, rf);
if (unlikely(p == RETRY_TASK))
goto again;
goto restart;
/* Assumes fair_sched_class->next == idle_sched_class */
if (unlikely(!p))
@ -3928,14 +3928,28 @@ pick_next_task(struct rq *rq, struct task_struct *prev, struct rq_flags *rf)
return p;
}
again:
restart:
#ifdef CONFIG_SMP
/*
* We must do the balancing pass before put_next_task(), such
* that when we release the rq->lock the task is in the same
* state as before we took rq->lock.
*
* We can terminate the balance pass as soon as we know there is
* a runnable task of @class priority or higher.
*/
for_class_range(class, prev->sched_class, &idle_sched_class) {
if (class->balance(rq, prev, rf))
break;
}
#endif
put_prev_task(rq, prev);
for_each_class(class) {
p = class->pick_next_task(rq, prev, rf);
if (p) {
if (unlikely(p == RETRY_TASK))
goto again;
p = class->pick_next_task(rq, NULL, NULL);
if (p)
return p;
}
}
/* The idle class should always have a runnable task: */
@ -6005,10 +6019,11 @@ void init_idle(struct task_struct *idle, int cpu)
struct rq *rq = cpu_rq(cpu);
unsigned long flags;
__sched_fork(0, idle);
raw_spin_lock_irqsave(&idle->pi_lock, flags);
raw_spin_lock(&rq->lock);
__sched_fork(0, idle);
idle->state = TASK_RUNNING;
idle->se.exec_start = sched_clock();
idle->flags |= PF_IDLE;
@ -6196,7 +6211,7 @@ static struct task_struct *__pick_migrate_task(struct rq *rq)
for_each_class(class) {
next = class->pick_next_task(rq, NULL, NULL);
if (next) {
next->sched_class->put_prev_task(rq, next, NULL);
next->sched_class->put_prev_task(rq, next);
return next;
}
}

View file

@ -1691,6 +1691,22 @@ static void check_preempt_equal_dl(struct rq *rq, struct task_struct *p)
resched_curr(rq);
}
static int balance_dl(struct rq *rq, struct task_struct *p, struct rq_flags *rf)
{
if (!on_dl_rq(&p->dl) && need_pull_dl_task(rq, p)) {
/*
* This is OK, because current is on_cpu, which avoids it being
* picked for load-balance and preemption/IRQs are still
* disabled avoiding further scheduler activity on it and we've
* not yet started the picking loop.
*/
rq_unpin_lock(rq, rf);
pull_dl_task(rq);
rq_repin_lock(rq, rf);
}
return sched_stop_runnable(rq) || sched_dl_runnable(rq);
}
#endif /* CONFIG_SMP */
/*
@ -1758,71 +1774,28 @@ static struct task_struct *
pick_next_task_dl(struct rq *rq, struct task_struct *prev, struct rq_flags *rf)
{
struct sched_dl_entity *dl_se;
struct dl_rq *dl_rq = &rq->dl;
struct task_struct *p;
struct dl_rq *dl_rq;
dl_rq = &rq->dl;
WARN_ON_ONCE(prev || rf);
if (need_pull_dl_task(rq, prev)) {
/*
* This is OK, because current is on_cpu, which avoids it being
* picked for load-balance and preemption/IRQs are still
* disabled avoiding further scheduler activity on it and we're
* being very careful to re-start the picking loop.
*/
rq_unpin_lock(rq, rf);
pull_dl_task(rq);
rq_repin_lock(rq, rf);
/*
* pull_dl_task() can drop (and re-acquire) rq->lock; this
* means a stop task can slip in, in which case we need to
* re-start task selection.
*/
if (rq->stop && task_on_rq_queued(rq->stop))
return RETRY_TASK;
}
/*
* When prev is DL, we may throttle it in put_prev_task().
* So, we update time before we check for dl_nr_running.
*/
if (prev->sched_class == &dl_sched_class)
update_curr_dl(rq);
if (unlikely(!dl_rq->dl_nr_running))
if (!sched_dl_runnable(rq))
return NULL;
put_prev_task(rq, prev);
dl_se = pick_next_dl_entity(rq, dl_rq);
BUG_ON(!dl_se);
p = dl_task_of(dl_se);
set_next_task_dl(rq, p);
return p;
}
static void put_prev_task_dl(struct rq *rq, struct task_struct *p, struct rq_flags *rf)
static void put_prev_task_dl(struct rq *rq, struct task_struct *p)
{
update_curr_dl(rq);
update_dl_rq_load_avg(rq_clock_pelt(rq), rq, 1);
if (on_dl_rq(&p->dl) && p->nr_cpus_allowed > 1)
enqueue_pushable_dl_task(rq, p);
if (rf && !on_dl_rq(&p->dl) && need_pull_dl_task(rq, p)) {
/*
* This is OK, because current is on_cpu, which avoids it being
* picked for load-balance and preemption/IRQs are still
* disabled avoiding further scheduler activity on it and we've
* not yet started the picking loop.
*/
rq_unpin_lock(rq, rf);
pull_dl_task(rq);
rq_repin_lock(rq, rf);
}
}
/*
@ -2468,6 +2441,7 @@ const struct sched_class dl_sched_class = {
.set_next_task = set_next_task_dl,
#ifdef CONFIG_SMP
.balance = balance_dl,
.select_task_rq = select_task_rq_dl,
.migrate_task_rq = migrate_task_rq_dl,
.set_cpus_allowed = set_cpus_allowed_dl,

View file

@ -6630,6 +6630,15 @@ static void task_dead_fair(struct task_struct *p)
{
remove_entity_load_avg(&p->se);
}
static int
balance_fair(struct rq *rq, struct task_struct *prev, struct rq_flags *rf)
{
if (rq->nr_running)
return 1;
return newidle_balance(rq, rf) != 0;
}
#endif /* CONFIG_SMP */
static unsigned long wakeup_gran(struct sched_entity *se)
@ -6806,11 +6815,11 @@ pick_next_task_fair(struct rq *rq, struct task_struct *prev, struct rq_flags *rf
int new_tasks;
again:
if (!cfs_rq->nr_running)
if (!sched_fair_runnable(rq))
goto idle;
#ifdef CONFIG_FAIR_GROUP_SCHED
if (prev->sched_class != &fair_sched_class)
if (!prev || prev->sched_class != &fair_sched_class)
goto simple;
/*
@ -6887,8 +6896,8 @@ again:
goto done;
simple:
#endif
put_prev_task(rq, prev);
if (prev)
put_prev_task(rq, prev);
do {
se = pick_next_entity(cfs_rq, NULL);
@ -6916,6 +6925,9 @@ done: __maybe_unused;
return p;
idle:
if (!rf)
return NULL;
new_tasks = newidle_balance(rq, rf);
/*
@ -6941,7 +6953,7 @@ idle:
/*
* Account for a descheduled task:
*/
static void put_prev_task_fair(struct rq *rq, struct task_struct *prev, struct rq_flags *rf)
static void put_prev_task_fair(struct rq *rq, struct task_struct *prev)
{
struct sched_entity *se = &prev->se;
struct cfs_rq *cfs_rq;
@ -7596,6 +7608,19 @@ static void update_blocked_averages(int cpu)
rq_lock_irqsave(rq, &rf);
update_rq_clock(rq);
/*
* update_cfs_rq_load_avg() can call cpufreq_update_util(). Make sure
* that RT, DL and IRQ signals have been updated before updating CFS.
*/
curr_class = rq->curr->sched_class;
update_rt_rq_load_avg(rq_clock_pelt(rq), rq, curr_class == &rt_sched_class);
update_dl_rq_load_avg(rq_clock_pelt(rq), rq, curr_class == &dl_sched_class);
update_irq_load_avg(rq, 0);
/* Don't need periodic decay once load/util_avg are null */
if (others_have_blocked(rq))
done = false;
/*
* Iterates the task_group tree in a bottom up fashion, see
* list_add_leaf_cfs_rq() for details.
@ -7623,14 +7648,6 @@ static void update_blocked_averages(int cpu)
done = false;
}
curr_class = rq->curr->sched_class;
update_rt_rq_load_avg(rq_clock_pelt(rq), rq, curr_class == &rt_sched_class);
update_dl_rq_load_avg(rq_clock_pelt(rq), rq, curr_class == &dl_sched_class);
update_irq_load_avg(rq, 0);
/* Don't need periodic decay once load/util_avg are null */
if (others_have_blocked(rq))
done = false;
update_blocked_load_status(rq, !done);
rq_unlock_irqrestore(rq, &rf);
}
@ -7691,12 +7708,18 @@ static inline void update_blocked_averages(int cpu)
rq_lock_irqsave(rq, &rf);
update_rq_clock(rq);
update_cfs_rq_load_avg(cfs_rq_clock_pelt(cfs_rq), cfs_rq);
/*
* update_cfs_rq_load_avg() can call cpufreq_update_util(). Make sure
* that RT, DL and IRQ signals have been updated before updating CFS.
*/
curr_class = rq->curr->sched_class;
update_rt_rq_load_avg(rq_clock_pelt(rq), rq, curr_class == &rt_sched_class);
update_dl_rq_load_avg(rq_clock_pelt(rq), rq, curr_class == &dl_sched_class);
update_irq_load_avg(rq, 0);
update_cfs_rq_load_avg(cfs_rq_clock_pelt(cfs_rq), cfs_rq);
update_blocked_load_status(rq, cfs_rq_has_blocked(cfs_rq) || others_have_blocked(rq));
rq_unlock_irqrestore(rq, &rf);
}
@ -10537,11 +10560,11 @@ const struct sched_class fair_sched_class = {
.check_preempt_curr = check_preempt_wakeup,
.pick_next_task = pick_next_task_fair,
.put_prev_task = put_prev_task_fair,
.set_next_task = set_next_task_fair,
#ifdef CONFIG_SMP
.balance = balance_fair,
.select_task_rq = select_task_rq_fair,
.migrate_task_rq = migrate_task_rq_fair,

View file

@ -365,6 +365,12 @@ select_task_rq_idle(struct task_struct *p, int cpu, int sd_flag, int flags)
{
return task_cpu(p); /* IDLE tasks as never migrated */
}
static int
balance_idle(struct rq *rq, struct task_struct *prev, struct rq_flags *rf)
{
return WARN_ON_ONCE(1);
}
#endif
/*
@ -375,7 +381,7 @@ static void check_preempt_curr_idle(struct rq *rq, struct task_struct *p, int fl
resched_curr(rq);
}
static void put_prev_task_idle(struct rq *rq, struct task_struct *prev, struct rq_flags *rf)
static void put_prev_task_idle(struct rq *rq, struct task_struct *prev)
{
}
@ -390,7 +396,9 @@ pick_next_task_idle(struct rq *rq, struct task_struct *prev, struct rq_flags *rf
{
struct task_struct *next = rq->idle;
put_prev_task(rq, prev);
if (prev)
put_prev_task(rq, prev);
set_next_task_idle(rq, next);
return next;
@ -458,6 +466,7 @@ const struct sched_class idle_sched_class = {
.set_next_task = set_next_task_idle,
#ifdef CONFIG_SMP
.balance = balance_idle,
.select_task_rq = select_task_rq_idle,
.set_cpus_allowed = set_cpus_allowed_common,
#endif

View file

@ -1469,6 +1469,22 @@ static void check_preempt_equal_prio(struct rq *rq, struct task_struct *p)
resched_curr(rq);
}
static int balance_rt(struct rq *rq, struct task_struct *p, struct rq_flags *rf)
{
if (!on_rt_rq(&p->rt) && need_pull_rt_task(rq, p)) {
/*
* This is OK, because current is on_cpu, which avoids it being
* picked for load-balance and preemption/IRQs are still
* disabled avoiding further scheduler activity on it and we've
* not yet started the picking loop.
*/
rq_unpin_lock(rq, rf);
pull_rt_task(rq);
rq_repin_lock(rq, rf);
}
return sched_stop_runnable(rq) || sched_dl_runnable(rq) || sched_rt_runnable(rq);
}
#endif /* CONFIG_SMP */
/*
@ -1552,48 +1568,18 @@ static struct task_struct *
pick_next_task_rt(struct rq *rq, struct task_struct *prev, struct rq_flags *rf)
{
struct task_struct *p;
struct rt_rq *rt_rq = &rq->rt;
if (need_pull_rt_task(rq, prev)) {
/*
* This is OK, because current is on_cpu, which avoids it being
* picked for load-balance and preemption/IRQs are still
* disabled avoiding further scheduler activity on it and we're
* being very careful to re-start the picking loop.
*/
rq_unpin_lock(rq, rf);
pull_rt_task(rq);
rq_repin_lock(rq, rf);
/*
* pull_rt_task() can drop (and re-acquire) rq->lock; this
* means a dl or stop task can slip in, in which case we need
* to re-start task selection.
*/
if (unlikely((rq->stop && task_on_rq_queued(rq->stop)) ||
rq->dl.dl_nr_running))
return RETRY_TASK;
}
WARN_ON_ONCE(prev || rf);
/*
* We may dequeue prev's rt_rq in put_prev_task().
* So, we update time before rt_queued check.
*/
if (prev->sched_class == &rt_sched_class)
update_curr_rt(rq);
if (!rt_rq->rt_queued)
if (!sched_rt_runnable(rq))
return NULL;
put_prev_task(rq, prev);
p = _pick_next_task_rt(rq);
set_next_task_rt(rq, p);
return p;
}
static void put_prev_task_rt(struct rq *rq, struct task_struct *p, struct rq_flags *rf)
static void put_prev_task_rt(struct rq *rq, struct task_struct *p)
{
update_curr_rt(rq);
@ -1605,18 +1591,6 @@ static void put_prev_task_rt(struct rq *rq, struct task_struct *p, struct rq_fla
*/
if (on_rt_rq(&p->rt) && p->nr_cpus_allowed > 1)
enqueue_pushable_task(rq, p);
if (rf && !on_rt_rq(&p->rt) && need_pull_rt_task(rq, p)) {
/*
* This is OK, because current is on_cpu, which avoids it being
* picked for load-balance and preemption/IRQs are still
* disabled avoiding further scheduler activity on it and we've
* not yet started the picking loop.
*/
rq_unpin_lock(rq, rf);
pull_rt_task(rq);
rq_repin_lock(rq, rf);
}
}
#ifdef CONFIG_SMP
@ -2393,8 +2367,8 @@ const struct sched_class rt_sched_class = {
.set_next_task = set_next_task_rt,
#ifdef CONFIG_SMP
.balance = balance_rt,
.select_task_rq = select_task_rq_rt,
.set_cpus_allowed = set_cpus_allowed_common,
.rq_online = rq_online_rt,
.rq_offline = rq_offline_rt,

View file

@ -1724,20 +1724,24 @@ struct sched_class {
void (*check_preempt_curr)(struct rq *rq, struct task_struct *p, int flags);
/*
* It is the responsibility of the pick_next_task() method that will
* return the next task to call put_prev_task() on the @prev task or
* something equivalent.
* Both @prev and @rf are optional and may be NULL, in which case the
* caller must already have invoked put_prev_task(rq, prev, rf).
*
* May return RETRY_TASK when it finds a higher prio class has runnable
* tasks.
* Otherwise it is the responsibility of the pick_next_task() to call
* put_prev_task() on the @prev task or something equivalent, IFF it
* returns a next task.
*
* In that case (@rf != NULL) it may return RETRY_TASK when it finds a
* higher prio class has runnable tasks.
*/
struct task_struct * (*pick_next_task)(struct rq *rq,
struct task_struct *prev,
struct rq_flags *rf);
void (*put_prev_task)(struct rq *rq, struct task_struct *p, struct rq_flags *rf);
void (*put_prev_task)(struct rq *rq, struct task_struct *p);
void (*set_next_task)(struct rq *rq, struct task_struct *p);
#ifdef CONFIG_SMP
int (*balance)(struct rq *rq, struct task_struct *prev, struct rq_flags *rf);
int (*select_task_rq)(struct task_struct *p, int task_cpu, int sd_flag, int flags);
void (*migrate_task_rq)(struct task_struct *p, int new_cpu);
@ -1780,7 +1784,7 @@ struct sched_class {
static inline void put_prev_task(struct rq *rq, struct task_struct *prev)
{
WARN_ON_ONCE(rq->curr != prev);
prev->sched_class->put_prev_task(rq, prev, NULL);
prev->sched_class->put_prev_task(rq, prev);
}
static inline void set_next_task(struct rq *rq, struct task_struct *next)
@ -1794,8 +1798,12 @@ static inline void set_next_task(struct rq *rq, struct task_struct *next)
#else
#define sched_class_highest (&dl_sched_class)
#endif
#define for_class_range(class, _from, _to) \
for (class = (_from); class != (_to); class = class->next)
#define for_each_class(class) \
for (class = sched_class_highest; class; class = class->next)
for_class_range(class, sched_class_highest, NULL)
extern const struct sched_class stop_sched_class;
extern const struct sched_class dl_sched_class;
@ -1803,6 +1811,25 @@ extern const struct sched_class rt_sched_class;
extern const struct sched_class fair_sched_class;
extern const struct sched_class idle_sched_class;
static inline bool sched_stop_runnable(struct rq *rq)
{
return rq->stop && task_on_rq_queued(rq->stop);
}
static inline bool sched_dl_runnable(struct rq *rq)
{
return rq->dl.dl_nr_running > 0;
}
static inline bool sched_rt_runnable(struct rq *rq)
{
return rq->rt.rt_queued > 0;
}
static inline bool sched_fair_runnable(struct rq *rq)
{
return rq->cfs.nr_running > 0;
}
#ifdef CONFIG_SMP

View file

@ -15,6 +15,12 @@ select_task_rq_stop(struct task_struct *p, int cpu, int sd_flag, int flags)
{
return task_cpu(p); /* stop tasks as never migrate */
}
static int
balance_stop(struct rq *rq, struct task_struct *prev, struct rq_flags *rf)
{
return sched_stop_runnable(rq);
}
#endif /* CONFIG_SMP */
static void
@ -31,15 +37,13 @@ static void set_next_task_stop(struct rq *rq, struct task_struct *stop)
static struct task_struct *
pick_next_task_stop(struct rq *rq, struct task_struct *prev, struct rq_flags *rf)
{
struct task_struct *stop = rq->stop;
WARN_ON_ONCE(prev || rf);
if (!stop || !task_on_rq_queued(stop))
if (!sched_stop_runnable(rq))
return NULL;
put_prev_task(rq, prev);
set_next_task_stop(rq, stop);
return stop;
set_next_task_stop(rq, rq->stop);
return rq->stop;
}
static void
@ -59,7 +63,7 @@ static void yield_task_stop(struct rq *rq)
BUG(); /* the stop task should never yield, its pointless. */
}
static void put_prev_task_stop(struct rq *rq, struct task_struct *prev, struct rq_flags *rf)
static void put_prev_task_stop(struct rq *rq, struct task_struct *prev)
{
struct task_struct *curr = rq->curr;
u64 delta_exec;
@ -128,6 +132,7 @@ const struct sched_class stop_sched_class = {
.set_next_task = set_next_task_stop,
#ifdef CONFIG_SMP
.balance = balance_stop,
.select_task_rq = select_task_rq_stop,
.set_cpus_allowed = set_cpus_allowed_common,
#endif

View file

@ -2205,8 +2205,8 @@ static void ptrace_stop(int exit_code, int why, int clear_code, kernel_siginfo_t
*/
preempt_disable();
read_unlock(&tasklist_lock);
preempt_enable_no_resched();
cgroup_enter_frozen();
preempt_enable_no_resched();
freezable_schedule();
cgroup_leave_frozen(true);
} else {

View file

@ -141,7 +141,8 @@ unsigned int stack_trace_save_tsk(struct task_struct *tsk, unsigned long *store,
struct stacktrace_cookie c = {
.store = store,
.size = size,
.skip = skipnr + 1,
/* skip this function if they are tracing us */
.skip = skipnr + !!(current == tsk),
};
if (!try_get_task_stack(tsk))
@ -298,7 +299,8 @@ unsigned int stack_trace_save_tsk(struct task_struct *task,
struct stack_trace trace = {
.entries = store,
.max_entries = size,
.skip = skipnr + 1,
/* skip this function if they are tracing us */
.skip = skipnr + !!(current == task),
};
save_stack_trace_tsk(task, &trace);

View file

@ -771,7 +771,7 @@ int __do_adjtimex(struct __kernel_timex *txc, const struct timespec64 *ts,
/* fill PPS status fields */
pps_fill_timex(txc);
txc->time.tv_sec = (time_t)ts->tv_sec;
txc->time.tv_sec = ts->tv_sec;
txc->time.tv_usec = ts->tv_nsec;
if (!(time_status & STA_NANO))
txc->time.tv_usec = ts->tv_nsec / NSEC_PER_USEC;

View file

@ -110,8 +110,7 @@ void update_vsyscall(struct timekeeper *tk)
nsec = nsec + tk->wall_to_monotonic.tv_nsec;
vdso_ts->sec += __iter_div_u64_rem(nsec, NSEC_PER_SEC, &vdso_ts->nsec);
if (__arch_use_vsyscall(vdata))
update_vdso_data(vdata, tk);
update_vdso_data(vdata, tk);
__arch_update_vsyscall(vdata, tk);
@ -124,10 +123,8 @@ void update_vsyscall_tz(void)
{
struct vdso_data *vdata = __arch_get_k_vdso_data();
if (__arch_use_vsyscall(vdata)) {
vdata[CS_HRES_COARSE].tz_minuteswest = sys_tz.tz_minuteswest;
vdata[CS_HRES_COARSE].tz_dsttime = sys_tz.tz_dsttime;
}
vdata[CS_HRES_COARSE].tz_minuteswest = sys_tz.tz_minuteswest;
vdata[CS_HRES_COARSE].tz_dsttime = sys_tz.tz_dsttime;
__arch_sync_vdso_data(vdata);
}