Commit Graph

228 Commits

Author SHA1 Message Date
Raghavendra Rao Ananta
5bd75403be Merge remote-tracking branch 'remotes/origin/tmp-f686d9f' into msm-lahaina
* remotes/origin/tmp-f686d9f:
  ANDROID: update abi_gki_aarch64.xml for 5.2-rc6
  Linux 5.2-rc6
  Revert "iommu/vt-d: Fix lock inversion between iommu->lock and device_domain_lock"
  Bluetooth: Fix regression with minimum encryption key size alignment
  tcp: refine memory limit test in tcp_fragment()
  x86/vdso: Prevent segfaults due to hoisted vclock reads
  SUNRPC: Fix a credential refcount leak
  Revert "SUNRPC: Declare RPC timers as TIMER_DEFERRABLE"
  net :sunrpc :clnt :Fix xps refcount imbalance on the error path
  NFS4: Only set creation opendata if O_CREAT
  ANDROID: gki_defconfig: workaround to enable configs
  ANDROID: gki_defconfig: more configs for partners
  ARM: 8867/1: vdso: pass --be8 to linker if necessary
  KVM: nVMX: reorganize initial steps of vmx_set_nested_state
  KVM: PPC: Book3S HV: Invalidate ERAT when flushing guest TLB entries
  habanalabs: use u64_to_user_ptr() for reading user pointers
  nfsd: replace Jeff by Chuck as nfsd co-maintainer
  inet: clear num_timeout reqsk_alloc()
  PCI/P2PDMA: Ignore root complex whitelist when an IOMMU is present
  net: mvpp2: debugfs: Add pmap to fs dump
  ipv6: Default fib6_type to RTN_UNICAST when not set
  net: hns3: Fix inconsistent indenting
  net/af_iucv: always register net_device notifier
  net/af_iucv: build proper skbs for HiperTransport
  net/af_iucv: remove GFP_DMA restriction for HiperTransport
  doc: fix documentation about UIO_MEM_LOGICAL using
  MAINTAINERS / Documentation: Thorsten Scherer is the successor of Gavin Schenk
  docs: fb: Add TER16x32 to the available font names
  MAINTAINERS: fpga: hand off maintainership to Moritz
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  KVM: arm/arm64: Fix emulated ptimer irq injection
  net: dsa: mv88e6xxx: fix shift of FID bits in mv88e6185_g1_vtu_loadpurge()
  tests: kvm: Check for a kernel warning
  kvm: tests: Sort tests in the Makefile alphabetically
  KVM: x86/mmu: Allocate PAE root array when using SVM's 32-bit NPT
  KVM: x86: Modify struct kvm_nested_state to have explicit fields for data
  fanotify: update connector fsid cache on add mark
  quota: fix a problem about transfer quota
  drm/i915: Don't clobber M/N values during fastset check
  powerpc: enable a 30-bit ZONE_DMA for 32-bit pmac
  ovl: make i_ino consistent with st_ino in more cases
  scsi: qla2xxx: Fix hardlockup in abort command during driver remove
  scsi: ufs: Avoid runtime suspend possibly being blocked forever
  scsi: qedi: update driver version to 8.37.0.20
  scsi: qedi: Check targetname while finding boot target information
  hvsock: fix epollout hang from race condition
  net/udp_gso: Allow TX timestamp with UDP GSO
  net: netem: fix use after free and double free with packet corruption
  net: netem: fix backlog accounting for corrupted GSO frames
  net: lio_core: fix potential sign-extension overflow on large shift
  tipc: pass tunnel dev as NULL to udp_tunnel(6)_xmit_skb
  ip6_tunnel: allow not to count pkts on tstats by passing dev as NULL
  ip_tunnel: allow not to count pkts on tstats by setting skb's dev to NULL
  apparmor: reset pos on failure to unpack for various functions
  apparmor: enforce nullbyte at end of tag string
  apparmor: fix PROFILE_MEDIATES for untrusted input
  RDMA/efa: Handle mmap insertions overflow
  tun: wake up waitqueues after IFF_UP is set
  drm: return -EFAULT if copy_to_user() fails
  net: remove duplicate fetch in sock_getsockopt
  tipc: fix issues with early FAILOVER_MSG from peer
  bnx2x: Check if transceiver implements DDM before access
  xhci: detect USB 3.2 capable host controllers correctly
  usb: xhci: Don't try to recover an endpoint if port is in error state.
  KVM: fix typo in documentation
  drm/panfrost: Make sure a BO is only unmapped when appropriate
  md: fix for divide error in status_resync
  soc: ixp4xx: npe: Fix an IS_ERR() vs NULL check in probe
  arm64/mm: don't initialize pgd_cache twice
  MAINTAINERS: Update my email address
  arm64/sve: <uapi/asm/ptrace.h> should not depend on <uapi/linux/prctl.h>
  ovl: fix typo in MODULE_PARM_DESC
  ovl: fix bogus -Wmaybe-unitialized warning
  ovl: don't fail with disconnected lower NFS
  mmc: core: Prevent processing SDIO IRQs when the card is suspended
  mmc: sdhci: sdhci-pci-o2micro: Correctly set bus width when tuning
  brcmfmac: sdio: Don't tune while the card is off
  mmc: core: Add sdio_retune_hold_now() and sdio_retune_release()
  brcmfmac: sdio: Disable auto-tuning around commands expected to fail
  mmc: core: API to temporarily disable retuning for SDIO CRC errors
  Revert "brcmfmac: disable command decode in sdio_aos"
  ARM: ixp4xx: include irqs.h where needed
  ARM: ixp4xx: mark ixp4xx_irq_setup as __init
  ARM: ixp4xx: don't select SERIAL_OF_PLATFORM
  firmware: trusted_foundations: add ARMv7 dependency
  usb: dwc2: Use generic PHY width in params setup
  RDMA/efa: Fix success return value in case of error
  IB/hfi1: Handle port down properly in pio
  IB/hfi1: Handle wakeup of orphaned QPs for pio
  IB/hfi1: Wakeup QPs orphaned on wait list after flush
  IB/hfi1: Use aborts to trigger RC throttling
  IB/hfi1: Create inline to get extended headers
  IB/hfi1: Silence txreq allocation warnings
  IB/hfi1: Avoid hardlockup with flushlist_lock
  KVM: PPC: Book3S HV: Only write DAWR[X] when handling h_set_dawr in real mode
  KVM: PPC: Book3S HV: Fix r3 corruption in h_set_dabr()
  fs/namespace: fix unprivileged mount propagation
  vfs: fsmount: add missing mntget()
  cifs: fix GlobalMid_Lock bug in cifs_reconnect
  SMB3: retry on STATUS_INSUFFICIENT_RESOURCES instead of failing write
  staging: erofs: add requirements field in superblock
  arm64: ssbd: explicitly depend on <linux/prctl.h>
  block: fix page leak when merging to same page
  block: return from __bio_try_merge_page if merging occured in the same page
  Btrfs: fix failure to persist compression property xattr deletion on fsync
  riscv: remove unused barrier defines
  usb: chipidea: udc: workaround for endpoint conflict issue
  MAINTAINERS: Change QCOM repo location
  mmc: mediatek: fix SDIO IRQ detection issue
  mmc: mediatek: fix SDIO IRQ interrupt handle flow
  mmc: core: complete HS400 before checking status
  riscv: mm: synchronize MMU after pte change
  MAINTAINERS: Update my email address to use @kernel.org
  ANDROID: update abi_gki_aarch64.xml for 5.2-rc5
  riscv: dts: add initial board data for the SiFive HiFive Unleashed
  riscv: dts: add initial support for the SiFive FU540-C000 SoC
  dt-bindings: riscv: convert cpu binding to json-schema
  dt-bindings: riscv: sifive: add YAML documentation for the SiFive FU540
  arch: riscv: add support for building DTB files from DT source data
  drm/i915/gvt: ignore unexpected pvinfo write
  lapb: fixed leak of control-blocks.
  tipc: purge deferredq list for each grp member in tipc_group_delete
  ax25: fix inconsistent lock state in ax25_destroy_timer
  neigh: fix use-after-free read in pneigh_get_next
  tcp: fix compile error if !CONFIG_SYSCTL
  hv_sock: Suppress bogus "may be used uninitialized" warnings
  be2net: Fix number of Rx queues used for flow hashing
  net: handle 802.1P vlan 0 packets properly
  Linux 5.2-rc5
  tcp: enforce tcp_min_snd_mss in tcp_mtu_probing()
  tcp: add tcp_min_snd_mss sysctl
  tcp: tcp_fragment() should apply sane memory limits
  tcp: limit payload size of sacked skbs
  Revert "net: phylink: set the autoneg state in phylink_phy_change"
  bpf: fix nested bpf tracepoints with per-cpu data
  bpf: Fix out of bounds memory access in bpf_sk_storage
  vsock/virtio: set SOCK_DONE on peer shutdown
  net: dsa: rtl8366: Fix up VLAN filtering
  net: phylink: set the autoneg state in phylink_phy_change
  powerpc/32: fix build failure on book3e with KVM
  powerpc/booke: fix fast syscall entry on SMP
  powerpc/32s: fix initial setup of segment registers on secondary CPU
  x86/microcode, cpuhotplug: Add a microcode loader CPU hotplug callback
  net: add high_order_alloc_disable sysctl/static key
  tcp: add tcp_tx_skb_cache sysctl
  tcp: add tcp_rx_skb_cache sysctl
  sysctl: define proc_do_static_key()
  hv_netvsc: Set probe mode to sync
  net: sched: flower: don't call synchronize_rcu() on mask creation
  net: dsa: fix warning same module names
  sctp: Free cookie before we memdup a new one
  net: dsa: microchip: Don't try to read stats for unused ports
  qmi_wwan: extend permitted QMAP mux_id value range
  qmi_wwan: avoid RCU stalls on device disconnect when in QMAP mode
  qmi_wwan: add network device usage statistics for qmimux devices
  qmi_wwan: add support for QMAP padding in the RX path
  bpf, x64: fix stack layout of JITed bpf code
  Smack: Restore the smackfsdef mount option and add missing prefixes
  bpf, devmap: Add missing RCU read lock on flush
  bpf, devmap: Add missing bulk queue free
  bpf, devmap: Fix premature entry free on destroying map
  ftrace: Fix NULL pointer dereference in free_ftrace_func_mapper()
  module: Fix livepatch/ftrace module text permissions race
  tracing/uprobe: Fix obsolete comment on trace_uprobe_create()
  tracing/uprobe: Fix NULL pointer dereference in trace_uprobe_create()
  tracing: Make two symbols static
  tracing: avoid build warning with HAVE_NOP_MCOUNT
  tracing: Fix out-of-range read in trace_stack_print()
  gfs2: Fix rounding error in gfs2_iomap_page_prepare
  net: phylink: further mac_config documentation improvements
  nfc: Ensure presence of required attributes in the deactivate_target handler
  btrfs: start readahead also in seed devices
  x86/kasan: Fix boot with 5-level paging and KASAN
  cfg80211: report measurement start TSF correctly
  cfg80211: fix memory leak of wiphy device name
  cfg80211: util: fix bit count off by one
  mac80211: do not start any work during reconfigure flow
  cfg80211: use BIT_ULL in cfg80211_parse_mbssid_data()
  mac80211: only warn once on chanctx_conf being NULL
  mac80211: drop robust management frames from unknown TA
  gpu: ipu-v3: image-convert: Fix image downsize coefficients
  gpu: ipu-v3: image-convert: Fix input bytesperline for packed formats
  gpu: ipu-v3: image-convert: Fix input bytesperline width/height align
  thunderbolt: Implement CIO reset correctly for Titan Ridge
  ARM: davinci: da8xx: specify dma_coherent_mask for lcdc
  ARM: davinci: da850-evm: call regulator_has_full_constraints()
  timekeeping: Repair ktime_get_coarse*() granularity
  Revert "ALSA: hda/realtek - Improve the headset mic for Acer Aspire laptops"
  ANDROID: update abi_gki_aarch64.xml
  mm/devm_memremap_pages: fix final page put race
  PCI/P2PDMA: track pgmap references per resource, not globally
  lib/genalloc: introduce chunk owners
  PCI/P2PDMA: fix the gen_pool_add_virt() failure path
  mm/devm_memremap_pages: introduce devm_memunmap_pages
  drivers/base/devres: introduce devm_release_action()
  mm/vmscan.c: fix trying to reclaim unevictable LRU page
  coredump: fix race condition between collapse_huge_page() and core dumping
  mm/mlock.c: change count_mm_mlocked_page_nr return type
  mm: mmu_gather: remove __tlb_reset_range() for force flush
  fs/ocfs2: fix race in ocfs2_dentry_attach_lock()
  mm/vmscan.c: fix recent_rotated history
  mm/mlock.c: mlockall error for flag MCL_ONFAULT
  scripts/decode_stacktrace.sh: prefix addr2line with $CROSS_COMPILE
  mm/list_lru.c: fix memory leak in __memcg_init_list_lru_node
  mm: memcontrol: don't batch updates of local VM stats and events
  PCI: PM: Skip devices in D0 for suspend-to-idle
  ANDROID: Removed extraneous configs from gki
  powerpc/bpf: use unsigned division instruction for 64-bit operations
  bpf: fix div64 overflow tests to properly detect errors
  bpf: sync BPF_FIB_LOOKUP flag changes with BPF uapi
  bpf: simplify definition of BPF_FIB_LOOKUP related flags
  cifs: add spinlock for the openFileList to cifsInodeInfo
  cifs: fix panic in smb2_reconnect
  x86/fpu: Don't use current->mm to check for a kthread
  KVM: nVMX: use correct clean fields when copying from eVMCS
  vfio-ccw: Destroy kmem cache region on module exit
  block/ps3vram: Use %llu to format sector_t after LBDAF removal
  libata: Extend quirks for the ST1000LM024 drives with NOLPM quirk
  bcache: only set BCACHE_DEV_WB_RUNNING when cached device attached
  bcache: fix stack corruption by PRECEDING_KEY()
  arm64/sve: Fix missing SVE/FPSIMD endianness conversions
  blk-mq: remove WARN_ON(!q->elevator) from blk_mq_sched_free_requests
  blkio-controller.txt: Remove references to CFQ
  block/switching-sched.txt: Update to blk-mq schedulers
  null_blk: remove duplicate check for report zone
  blk-mq: no need to check return value of debugfs_create functions
  io_uring: fix memory leak of UNIX domain socket inode
  block: force select mq-deadline for zoned block devices
  binder: fix possible UAF when freeing buffer
  drm/amdgpu: return 0 by default in amdgpu_pm_load_smu_firmware
  drm/amdgpu: Fix bounds checking in amdgpu_ras_is_supported()
  ANDROID: x86 gki_defconfig: enable DMA_CMA
  ANDROID: Fixed x86 regression
  ANDROID: gki_defconfig: enable DMA_CMA
  Input: synaptics - enable SMBus on ThinkPad E480 and E580
  net: mvpp2: prs: Use the correct helpers when removing all VID filters
  net: mvpp2: prs: Fix parser range for VID filtering
  mlxsw: spectrum: Disallow prio-tagged packets when PVID is removed
  mlxsw: spectrum_buffers: Reduce pool size on Spectrum-2
  selftests: tc_flower: Add TOS matching test
  mlxsw: spectrum_flower: Fix TOS matching
  selftests: mlxsw: Test nexthop offload indication
  mlxsw: spectrum_router: Refresh nexthop neighbour when it becomes dead
  mlxsw: spectrum: Use different seeds for ECMP and LAG hash
  net: tls, correctly account for copied bytes with multiple sk_msgs
  vrf: Increment Icmp6InMsgs on the original netdev
  cpuset: restore sanity to cpuset_cpus_allowed_fallback()
  net: ethtool: Allow matching on vlan DEI bit
  linux-next: DOC: RDS: Fix a typo in rds.txt
  x86/kgdb: Return 0 from kgdb_arch_set_breakpoint()
  mpls: fix af_mpls dependencies for real
  selinux: fix a missing-check bug in selinux_sb_eat_lsm_opts()
  selinux: fix a missing-check bug in selinux_add_mnt_opt( )
  arm64: tlbflush: Ensure start/end of address range are aligned to stride
  usb: typec: Make sure an alt mode exist before getting its partner
  KVM: arm/arm64: vgic: Fix kvm_device leak in vgic_its_destroy
  KVM: arm64: Filter out invalid core register IDs in KVM_GET_REG_LIST
  KVM: arm64: Implement vq_present() as a macro
  xdp: check device pointer before clearing
  bpf: net: Set sk_bpf_storage back to NULL for cloned sk
  Btrfs: fix race between block group removal and block group allocation
  clocksource/drivers/arm_arch_timer: Don't trace count reader functions
  i2c: pca-platform: Fix GPIO lookup code
  thunderbolt: Make sure device runtime resume completes before taking domain lock
  drm: add fallback override/firmware EDID modes workaround
  i2c: acorn: fix i2c warning
  arm64: Don't unconditionally add -Wno-psabi to KBUILD_CFLAGS
  drm/edid: abstract override/firmware EDID retrieval
  platform/mellanox: mlxreg-hotplug: Add devm_free_irq call to remove flow
  platform/x86: mlx-platform: Fix parent device in i2c-mux-reg device registration
  platform/x86: intel-vbtn: Report switch events when event wakes device
  platform/x86: asus-wmi: Only Tell EC the OS will handle display hotkeys from asus_nb_wmi
  ARM: mvebu_v7_defconfig: fix Ethernet on Clearfog
  x86/resctrl: Prevent NULL pointer dereference when local MBM is disabled
  x86/resctrl: Don't stop walking closids when a locksetup group is found
  iommu/arm-smmu: Avoid constant zero in TLBI writes
  drm/i915/perf: fix whitelist on Gen10+
  drm/i915/sdvo: Implement proper HDMI audio support for SDVO
  drm/i915: Fix per-pixel alpha with CCS
  drm/i915/dmc: protect against reading random memory
  drm/i915/dsi: Use a fuzzy check for burst mode clock check
  Input: imx_keypad - make sure keyboard can always wake up system
  selinux: log raw contexts as untrusted strings
  ptrace: restore smp_rmb() in __ptrace_may_access()
  IB/hfi1: Correct tid qp rcd to match verbs context
  IB/hfi1: Close PSM sdma_progress sleep window
  IB/hfi1: Validate fault injection opcode user input
  geneve: Don't assume linear buffers in error handler
  vxlan: Don't assume linear buffers in error handler
  net: openvswitch: do not free vport if register_netdevice() is failed.
  net: correct udp zerocopy refcnt also when zerocopy only on append
  drm/amdgpu/{uvd,vcn}: fetch ring's read_ptr after alloc
  ovl: fix wrong flags check in FS_IOC_FS[SG]ETXATTR ioctls
  riscv: Fix udelay in RV32.
  drm/vmwgfx: fix a warning due to missing dma_parms
  riscv: export pm_power_off again
  drm/vmwgfx: Honor the sg list segment size limitation
  RISC-V: defconfig: enable clocks, serial console
  drm/vmwgfx: Use the backdoor port if the HB port is not available
  bpf: lpm_trie: check left child of last leftmost node for NULL
  Revert "fuse: require /dev/fuse reads to have enough buffer capacity"
  ALSA: ice1712: Check correct return value to snd_i2c_sendbytes (EWS/DMX 6Fire)
  ALSA: oxfw: allow PCM capture for Stanton SCS.1m
  ALSA: firewire-motu: fix destruction of data for isochronous resources
  s390/ctl_reg: mark __ctl_set_bit and __ctl_clear_bit as __always_inline
  s390/boot: disable address-of-packed-member warning
  ANDROID: update gki aarch64 ABI representation
  cgroup: Fix css_task_iter_advance_css_set() cset skip condition
  drm/panfrost: Require the simple_ondemand governor
  drm/panfrost: make devfreq optional again
  drm/gem_shmem: Use a writecombine mapping for ->vaddr
  mmc: sdhi: disallow HS400 for M3-W ES1.2, RZ/G2M, and V3H
  ASoC: Intel: sst: fix kmalloc call with wrong flags
  ASoC: core: Fix deadlock in snd_soc_instantiate_card()
  cgroup/bfq: revert bfq.weight symlink change
  ARM: dts: am335x phytec boards: Fix cd-gpios active level
  ARM: dts: dra72x: Disable usb4_tm target module
  nfp: ensure skb network header is set for packet redirect
  tcp: fix undo spurious SYNACK in passive Fast Open
  mpls: fix af_mpls dependencies
  ibmvnic: Fix unchecked return codes of memory allocations
  ibmvnic: Refresh device multicast list after reset
  ibmvnic: Do not close unopened driver during reset
  mpls: fix warning with multi-label encap
  net: phy: rename Asix Electronics PHY driver
  ipv6: flowlabel: fl6_sock_lookup() must use atomic_inc_not_zero
  net: ipv4: fib_semantics: fix uninitialized variable
  Input: iqs5xx - get axis info before calling input_mt_init_slots()
  Linux 5.2-rc4
  drm: panel-orientation-quirks: Add quirk for GPD MicroPC
  drm: panel-orientation-quirks: Add quirk for GPD pocket2
  counter/ftm-quaddec: Add missing dependencies in Kconfig
  staging: iio: adt7316: Fix build errors when GPIOLIB is not set
  x86/fpu: Update kernel's FPU state before using for the fsave header
  MAINTAINERS: Karthikeyan Ramasubramanian is MIA
  i2c: xiic: Add max_read_len quirk
  ANDROID: update ABI representation
  gpio: pca953x: hack to fix 24 bit gpio expanders
  net/mlx5e: Support tagged tunnel over bond
  net/mlx5e: Avoid detaching non-existing netdev under switchdev mode
  net/mlx5e: Fix source port matching in fdb peer flow rule
  net/mlx5e: Replace reciprocal_scale in TX select queue function
  net/mlx5e: Add ndo_set_feature for uplink representor
  net/mlx5: Avoid reloading already removed devices
  net/mlx5: Update pci error handler entries and command translation
  RAS/CEC: Convert the timer callback to a workqueue
  RAS/CEC: Fix binary search function
  x86/mm/KASLR: Compute the size of the vmemmap section properly
  can: purge socket error queue on sock destruct
  can: flexcan: Remove unneeded registration message
  can: af_can: Fix error path of can_init()
  can: m_can: implement errata "Needless activation of MRAF irq"
  can: mcp251x: add support for mcp25625
  dt-bindings: can: mcp251x: add mcp25625 support
  can: xilinx_can: use correct bittiming_const for CAN FD core
  can: flexcan: fix timeout when set small bitrate
  can: usb: Kconfig: Remove duplicate menu entry
  lockref: Limit number of cmpxchg loop retries
  uaccess: add noop untagged_addr definition
  x86/insn-eval: Fix use-after-free access to LDT entry
  kbuild: use more portable 'command -v' for cc-cross-prefix
  s390/unwind: correct stack switching during unwind
  scsi: hpsa: correct ioaccel2 chaining
  btrfs: Always trim all unallocated space in btrfs_trim_free_extents
  netfilter: ipv6: nf_defrag: accept duplicate fragments again
  powerpc/32s: fix booting with CONFIG_PPC_EARLY_DEBUG_BOOTX
  drm/meson: fix G12A primary plane disabling
  drm/meson: fix primary plane disabling
  drm/meson: fix G12A HDMI PLL settings for 4K60 1000/1001 variations
  block, bfq: add weight symlink to the bfq.weight cgroup parameter
  cgroup: let a symlink too be created with a cftype file
  powerpc/64s: __find_linux_pte() synchronization vs pmdp_invalidate()
  powerpc/64s: Fix THP PMD collapse serialisation
  powerpc: Fix kexec failure on book3s/32
  drm/nouveau/secboot/gp10[2467]: support newer FW to fix SEC2 failures on some boards
  drm/nouveau/secboot: enable loading of versioned LS PMU/SEC2 ACR msgqueue FW
  drm/nouveau/secboot: split out FW version-specific LS function pointers
  drm/nouveau/secboot: pass max supported FW version to LS load funcs
  drm/nouveau/core: support versioned firmware loading
  drm/nouveau/core: pass subdev into nvkm_firmware_get, rather than device
  block: free sched's request pool in blk_cleanup_queue
  bpf: expand section tests for test_section_names
  bpf: more msg_name rewrite tests to test_sock_addr
  bpf, bpftool: enable recvmsg attach types
  bpf, libbpf: enable recvmsg attach types
  bpf: sync tooling uapi header
  bpf: fix unconnected udp hooks
  vfio/mdev: Synchronize device create/remove with parent removal
  vfio/mdev: Avoid creating sysfs remove file on stale device removal
  pktgen: do not sleep with the thread lock held.
  net: mvpp2: Use strscpy to handle stat strings
  net: rds: fix memory leak in rds_ib_flush_mr_pool
  ipv6: fix EFAULT on sendto with icmpv6 and hdrincl
  ipv6: use READ_ONCE() for inet->hdrincl as in ipv4
  soundwire: intel: set dai min and max channels correctly
  soundwire: stream: fix bad unlock balance
  x86/fpu: Use fault_in_pages_writeable() for pre-faulting
  nvme-rdma: use dynamic dma mapping per command
  nvme: Fix u32 overflow in the number of namespace list calculation
  vfio/mdev: Improve the create/remove sequence
  SoC: rt274: Fix internal jack assignment in set_jack callback
  ALSA: hdac: fix memory release for SST and SOF drivers
  ASoC: SOF: Intel: hda: use the defined ppcap functions
  ASoC: core: move DAI pre-links initiation to snd_soc_instantiate_card
  ASoC: Intel: cht_bsw_rt5672: fix kernel oops with platform_name override
  ASoC: Intel: cht_bsw_nau8824: fix kernel oops with platform_name override
  ASoC: Intel: bytcht_es8316: fix kernel oops with platform_name override
  ASoC: Intel: cht_bsw_max98090: fix kernel oops with platform_name override
  Revert "gfs2: Replace gl_revokes with a GLF flag"
  arm64: Silence gcc warnings about arch ABI drift
  parisc: Fix crash due alternative coding for NP iopdir_fdc bit
  parisc: Use lpa instruction to load physical addresses in driver code
  parisc: configs: Remove useless UEVENT_HELPER_PATH
  parisc: Use implicit space register selection for loading the coherence index of I/O pdirs
  usb: gadget: udc: lpc32xx: fix return value check in lpc32xx_udc_probe()
  usb: gadget: dwc2: fix zlp handling
  usb: dwc2: Set actual frame number for completed ISOC transfer for none DDMA
  usb: gadget: udc: lpc32xx: allocate descriptor with GFP_ATOMIC
  usb: gadget: fusb300_udc: Fix memory leak of fusb300->ep[i]
  usb: phy: mxs: Disable external charger detect in mxs_phy_hw_init()
  usb: dwc2: Fix DMA cache alignment issues
  usb: dwc2: host: Fix wMaxPacketSize handling (fix webcam regression)
  ARM64: trivial: s/TIF_SECOMP/TIF_SECCOMP/ comment typo fix
  drm/komeda: Potential error pointer dereference
  drm/komeda: remove set but not used variable 'kcrtc'
  x86/CPU: Add more Icelake model numbers
  hwmon: (pmbus/core) Treat parameters as paged if on multiple pages
  hwmon: (pmbus/core) mutex_lock write in pmbus_set_samples
  hwmon: (core) add thermal sensors only if dev->of_node is present
  Revert "fib_rules: return 0 directly if an exactly same rule exists when NLM_F_EXCL not supplied"
  net: aquantia: fix wol configuration not applied sometimes
  ethtool: fix potential userspace buffer overflow
  Fix memory leak in sctp_process_init
  net: rds: fix memory leak when unload rds_rdma
  ipv6: fix the check before getting the cookie in rt6_get_cookie
  ipv4: not do cache for local delivery if bc_forwarding is enabled
  selftests: vm: Fix test build failure when built by itself
  tools: bpftool: Fix JSON output when lookup fails
  mmc: also set max_segment_size in the device
  mtip32xx: also set max_segment_size in the device
  rsxx: don't call dma_set_max_seg_size
  nvme-pci: don't limit DMA segement size
  s390/qeth: handle error when updating TX queue count
  s390/qeth: fix VLAN attribute in bridge_hostnotify udev event
  s390/qeth: check dst entry before use
  s390/qeth: handle limited IPv4 broadcast in L3 TX path
  ceph: fix error handling in ceph_get_caps()
  ceph: avoid iput_final() while holding mutex or in dispatch thread
  ceph: single workqueue for inode related works
  cgroup: css_task_iter_skip()'d iterators must be advanced before accessed
  drm/amd/amdgpu: add RLC firmware to support raven1 refresh
  drm/amd/powerplay: add set_power_profile_mode for raven1_refresh
  drm/amdgpu: fix ring test failure issue during s3 in vce 3.0 (V2)
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  lib/test_stackinit: Handle Clang auto-initialization pattern
  block: Drop unlikely before IS_ERR(_OR_NULL)
  xen/swiotlb: don't initialize swiotlb twice on arm64
  s390/mm: fix address space detection in exception handling
  HID: logitech-dj: Fix 064d:c52f receiver support
  Revert "HID: core: Call request_module before doing device_add"
  Revert "HID: core: Do not call request_module() in async context"
  Revert "HID: Increase maximum report size allowed by hid_field_extract()"
  tests: fix pidfd-test compilation
  signal: improve comments
  samples: fix pidfd-metadata compilation
  arm64: arch_timer: mark functions as __always_inline
  arm64: smp: Moved cpu_logical_map[] to smp.h
  arm64: cpufeature: Fix missing ZFR0 in __read_sysreg_by_encoding()
  selftests/bpf: move test_lirc_mode2_user to TEST_GEN_PROGS_EXTENDED
  USB: Fix chipmunk-like voice when using Logitech C270 for recording audio.
  USB: usb-storage: Add new ID to ums-realtek
  udmabuf: actually unmap the scatterlist
  net: fix indirect calls helpers for ptype list hooks.
  net: ipvlan: Fix ipvlan device tso disabled while NETIF_F_IP_CSUM is set
  scsi: smartpqi: unlock on error in pqi_submit_raid_request_synchronous()
  scsi: ufs: Check that space was properly alloced in copy_query_response
  udp: only choose unbound UDP socket for multicast when not in a VRF
  net/tls: replace the sleeping lock around RX resync with a bit lock
  Revert "net/tls: avoid NULL-deref on resync during device removal"
  block: aoe: no need to check return value of debugfs_create functions
  net: dsa: sja1105: Fix link speed not working at 100 Mbps and below
  net: phylink: avoid reducing support mask
  scripts/checkstack.pl: Fix arm64 wrong or unknown architecture
  kbuild: tar-pkg: enable communication with jobserver
  kconfig: tests: fix recursive inclusion unit test
  kbuild: teach kselftest-merge to find nested config files
  nvmet: fix data_len to 0 for bdev-backed write_zeroes
  MAINTAINERS: Hand over skd maintainership
  ASoC: sun4i-i2s: Add offset to RX channel select
  ASoC: sun4i-i2s: Fix sun8i tx channel offset mask
  ASoC: max98090: remove 24-bit format support if RJ is 0
  ASoC: da7219: Fix build error without CONFIG_I2C
  ASoC: SOF: Intel: hda: Fix COMPILE_TEST build error
  drm/arm/hdlcd: Allow a bit of clock tolerance
  drm/arm/hdlcd: Actually validate CRTC modes
  drm/arm/mali-dp: Add a loop around the second set CVAL and try 5 times
  drm/komeda: fixing of DMA mapping sg segment warning
  netfilter: ipv6: nf_defrag: fix leakage of unqueued fragments
  habanalabs: Read upper bits of trace buffer from RWPHI
  arm64: arch_k3: Fix kconfig dependency warning
  drm: don't block fb changes for async plane updates
  drm/vc4: fix fb references in async update
  drm/msm: fix fb references in async update
  drm/amd: fix fb references in async update
  drm/rockchip: fix fb references in async update
  xen-blkfront: switch kcalloc to kvcalloc for large array allocation
  drm/mediatek: call mtk_dsi_stop() after mtk_drm_crtc_atomic_disable()
  drm/mediatek: clear num_pipes when unbind driver
  drm/mediatek: call drm_atomic_helper_shutdown() when unbinding driver
  drm/mediatek: unbind components in mtk_drm_unbind()
  drm/mediatek: fix unbind functions
  net: sfp: read eeprom in maximum 16 byte increments
  selftests: set sysctl bc_forwarding properly in router_broadcast.sh
  ANDROID: update gki aarch64 ABI representation
  net: ethernet: mediatek: Use NET_IP_ALIGN to judge if HW RX_2BYTE_OFFSET is enabled
  net: ethernet: mediatek: Use hw_feature to judge if HWLRO is supported
  net: ethernet: ti: cpsw_ethtool: fix ethtool ring param set
  ANDROID: gki_defconfig: Enable CMA, SLAB_FREELIST (RANDOM and HARDENED) on x86
  bpf: udp: Avoid calling reuseport's bpf_prog from udp_gro
  bpf: udp: ipv6: Avoid running reuseport's bpf_prog from __udp6_lib_err
  rcu: locking and unlocking need to always be at least barriers
  ANDROID: gki_defconfig: enable SLAB_FREELIST_RANDOM, SLAB_FREELIST_HARDENED
  ANDROID: gki_defconfig: enable CMA and increase CMA_AREAS
  ASoC: SOF: fix DSP oops definitions in FW ABI
  ASoC: hda: fix unbalanced codec dev refcount for HDA_DEV_ASOC
  ASoC: SOF: ipc: replace fw ready bitfield with explicit bit ordering
  ASoC: SOF: bump to ABI 3.6
  ASoC: SOF: soundwire: add initial soundwire support
  ASoC: SOF: uapi: mirror firmware changes
  ASoC: Intel: Baytrail: add quirk for Aegex 10 (RU2) tablet
  xfs: inode btree scrubber should calculate im_boffset correctly
  mmc: sdhci_am654: Fix SLOTTYPE write
  usb: typec: ucsi: ccg: fix memory leak in do_flash
  ANDROID: update gki aarch64 ABI representation
  habanalabs: Fix virtual address access via debugfs for 2MB pages
  drm/komeda: Constify the usage of komeda_component/pipeline/dev_funcs
  x86/power: Fix 'nosmt' vs hibernation triple fault during resume
  mm/vmalloc: Avoid rare case of flushing TLB with weird arguments
  mm/vmalloc: Fix calculation of direct map addr range
  PM: sleep: Add kerneldoc comments to some functions
  drm/i915/gvt: save RING_HEAD into vreg when vgpu switched out
  sparc: perf: fix updated event period in response to PERF_EVENT_IOC_PERIOD
  mdesc: fix a missing-check bug in get_vdev_port_node_info()
  drm/i915/gvt: add F_CMD_ACCESS flag for wa regs
  sparc64: Fix regression in non-hypervisor TLB flush xcall
  packet: unconditionally free po->rollover
  Update my email address
  net: hns: Fix loopback test failed at copper ports
  Linux 5.2-rc3
  net: dsa: mv88e6xxx: avoid error message on remove from VLAN 0
  mm, compaction: make sure we isolate a valid PFN
  include/linux/generic-radix-tree.h: fix kerneldoc comment
  kernel/signal.c: trace_signal_deliver when signal_group_exit
  drivers/iommu/intel-iommu.c: fix variable 'iommu' set but not used
  spdxcheck.py: fix directory structures
  kasan: initialize tag to 0xff in __kasan_kmalloc
  z3fold: fix sheduling while atomic
  scripts/gdb: fix invocation when CONFIG_COMMON_CLK is not set
  mm/gup: continue VM_FAULT_RETRY processing even for pre-faults
  ocfs2: fix error path kobject memory leak
  memcg: make it work on sparse non-0-node systems
  mm, memcg: consider subtrees in memory.events
  prctl_set_mm: downgrade mmap_sem to read lock
  prctl_set_mm: refactor checks from validate_prctl_map
  kernel/fork.c: make max_threads symbol static
  arch/arm/boot/compressed/decompress.c: fix build error due to lz4 changes
  arch/parisc/configs/c8000_defconfig: remove obsoleted CONFIG_DEBUG_SLAB_LEAK
  mm/vmalloc.c: fix typo in comment
  lib/sort.c: fix kernel-doc notation warnings
  mm: fix Documentation/vm/hmm.rst Sphinx warnings
  treewide: fix typos of SPDX-License-Identifier
  crypto: ux500 - fix license comment syntax error
  MAINTAINERS: add I2C DT bindings to ARM platforms
  MAINTAINERS: add DT bindings to i2c drivers
  mwifiex: Fix heap overflow in mwifiex_uap_parse_tail_ies()
  iwlwifi: mvm: change TLC config cmd sent by rs to be async
  iwlwifi: Fix double-free problems in iwl_req_fw_callback()
  iwlwifi: fix AX201 killer sku loading firmware issue
  iwlwifi: print fseq info upon fw assert
  iwlwifi: clear persistence bit according to device family
  iwlwifi: fix load in rfkill flow for unified firmware
  iwlwifi: mvm: remove d3_sram debugfs file
  bpf, riscv: clear high 32 bits for ALU32 add/sub/neg/lsh/rsh/arsh
  libbpf: Return btf_fd for load_sk_storage_btf
  HID: a4tech: fix horizontal scrolling
  HID: hyperv: Add a module description line
  net: dsa: sja1105: Don't store frame type in skb->cb
  block: print offending values when cloned rq limits are exceeded
  blk-mq: Document the blk_mq_hw_queue_to_node() arguments
  blk-mq: Fix spelling in a source code comment
  block: Fix bsg_setup_queue() kernel-doc header
  block: Fix rq_qos_wait() kernel-doc header
  block: Fix blk_mq_*_map_queues() kernel-doc headers
  block: Fix throtl_pending_timer_fn() kernel-doc header
  block: Convert blk_invalidate_devt() header into a non-kernel-doc header
  block/partitions/ldm: Convert a kernel-doc header into a non-kernel-doc header
  leds: avoid flush_work in atomic context
  cgroup: Include dying leaders with live threads in PROCS iterations
  cgroup: Implement css_task_iter_skip()
  cgroup: Call cgroup_release() before __exit_signal()
  netfilter: nf_tables: fix module autoload with inet family
  Revert "lockd: Show pid of lockd for remote locks"
  ALSA: hda/realtek - Update headset mode for ALC256
  fs/adfs: fix filename fixup handling for "/" and "//" names
  fs/adfs: move append_filetype_suffix() into adfs_object_fixup()
  fs/adfs: remove truncated filename hashing
  fs/adfs: factor out filename fixup
  fs/adfs: factor out object fixups
  fs/adfs: factor out filename case lowering
  fs/adfs: factor out filename comparison
  ovl: doc: add non-standard corner cases
  pstore/ram: Run without kernel crash dump region
  MAINTAINERS: add Vasily Gorbik and Christian Borntraeger for s390
  MAINTAINERS: Farewell Martin Schwidefsky
  pstore: Set tfm to NULL on free_buf_for_compression
  nds32: add new emulations for floating point instruction
  nds32: Avoid IEX status being incorrectly modified
  math-emu: Use statement expressions to fix Wshift-count-overflow warning
  net: correct zerocopy refcnt with udp MSG_MORE
  ethtool: Check for vlan etype or vlan tci when parsing flow_rule
  net: don't clear sock->sk early to avoid trouble in strparser
  net-gro: fix use-after-free read in napi_gro_frags()
  net: dsa: tag_8021q: Create a stable binary format
  net: dsa: tag_8021q: Change order of rx_vid setup
  net: mvpp2: fix bad MVPP2_TXQ_SCHED_TOKEN_CNTR_REG queue value
  docs cgroups: add another example size for hugetlb
  NFSv4.1: Fix bug only first CB_NOTIFY_LOCK is handled
  NFSv4.1: Again fix a race where CB_NOTIFY_LOCK fails to wake a waiter
  ipv4: tcp_input: fix stack out of bounds when parsing TCP options.
  mlxsw: spectrum: Prevent force of 56G
  mlxsw: spectrum_acl: Avoid warning after identical rules insertion
  SUNRPC: Fix a use after free when a server rejects the RPCSEC_GSS credential
  net: dsa: mv88e6xxx: fix handling of upper half of STATS_TYPE_PORT
  SUNRPC fix regression in umount of a secure mount
  r8169: fix MAC address being lost in PCI D3
  treewide: Add SPDX license identifier - Kbuild
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  net: core: support XDP generic on stacked devices.
  netvsc: unshare skb in VF rx handler
  udp: Avoid post-GRO UDP checksum recalculation
  nvme-tcp: fix queue mapping when queue count is limited
  nvme-rdma: fix queue mapping when queue count is limited
  fpga: zynqmp-fpga: Correctly handle error pointer
  selftests: vm: install test_vmalloc.sh for run_vmtests
  userfaultfd: selftest: fix compiler warning
  kselftest/cgroup: fix incorrect test_core skip
  kselftest/cgroup: fix unexpected testing failure on test_core
  kselftest/cgroup: fix unexpected testing failure on test_memcontrol
  xtensa: Fix section mismatch between memblock_reserve and mem_reserve
  signal/ptrace: Don't leak unitialized kernel memory with PTRACE_PEEK_SIGINFO
  mwifiex: Abort at too short BSS descriptor element
  mwifiex: Fix possible buffer overflows at parsing bss descriptor
  drm/i915/gvt: Assign NULL to the pointer after memory free.
  drm/i915/gvt: Check if cur_pt_type is valid
  x86: intel_epb: Do not build when CONFIG_PM is unset
  crypto: hmac - fix memory leak in hmac_init_tfm()
  crypto: jitterentropy - change back to module_init()
  ARM: dts: Drop bogus CLKSEL for timer12 on dra7
  KVM: PPC: Book3S HV: Restore SPRG3 in kvmhv_p9_guest_entry()
  KVM: PPC: Book3S HV: Fix lockdep warning when entering guest on POWER9
  KVM: PPC: Book3S HV: XIVE: Fix page offset when clearing ESB pages
  KVM: PPC: Book3S HV: XIVE: Take the srcu read lock when accessing memslots
  KVM: PPC: Book3S HV: XIVE: Do not clear IRQ data of passthrough interrupts
  KVM: PPC: Book3S HV: XIVE: Introduce a new mutex for the XIVE device
  drm/i915/gvt: Fix cmd length of VEB_DI_IECP
  drm/i915/gvt: refine ggtt range validation
  drm/i915/gvt: Fix vGPU CSFE_CHICKEN1_REG mmio handler
  drm/i915/gvt: Fix GFX_MODE handling
  drm/i915/gvt: Update force-to-nonpriv register whitelist
  drm/i915/gvt: Initialize intel_gvt_gtt_entry in stack
  ima: show rules with IMA_INMASK correctly
  evm: check hash algorithm passed to init_desc()
  scsi: libsas: delete sas port if expander discover failed
  scsi: libsas: only clear phy->in_shutdown after shutdown event done
  scsi: scsi_dh_alua: Fix possible null-ptr-deref
  scsi: smartpqi: properly set both the DMA mask and the coherent DMA mask
  scsi: zfcp: fix to prevent port_remove with pure auto scan LUNs (only sdevs)
  scsi: zfcp: fix missing zfcp_port reference put on -EBUSY from port_remove
  scsi: libcxgbi: add a check for NULL pointer in cxgbi_check_route()
  net: phy: dp83867: Set up RGMII TX delay
  net: phy: dp83867: do not call config_init twice
  net: phy: dp83867: increase SGMII autoneg timer duration
  net: phy: dp83867: fix speed 10 in sgmii mode
  net: phy: marvell10g: report if the PHY fails to boot firmware
  net: phylink: ensure consistent phy interface mode
  cgroup: Use css_tryget() instead of css_tryget_online() in task_get_css()
  blk-mq: Fix memory leak in error handling
  usbip: usbip_host: fix stub_dev lock context imbalance regression
  net: sh_eth: fix mdio access in sh_eth_close() for R-Car Gen2 and RZ/A1 SoCs
  MIPS: uprobes: remove set but not used variable 'epc'
  s390/crypto: fix possible sleep during spinlock aquired
  MIPS: pistachio: Build uImage.gz by default
  MIPS: Make virt_addr_valid() return bool
  MIPS: Bounds check virt_addr_valid
  CIFS: cifs_read_allocate_pages: don't iterate through whole page array on ENOMEM
  RDMA/efa: Remove MAYEXEC flag check from mmap flow
  mlx5: avoid 64-bit division
  IB/hfi1: Validate page aligned for a given virtual address
  IB/{qib, hfi1, rdmavt}: Correct ibv_devinfo max_mr value
  IB/hfi1: Insure freeze_work work_struct is canceled on shutdown
  IB/rdmavt: Fix alloc_qpn() WARN_ON()
  ASoC: sun4i-codec: fix first delay on Speaker
  drm/amdgpu: reserve stollen vram for raven series
  media: venus: hfi_parser: fix a regression in parser
  selftests: bpf: fix compiler warning in flow_dissector test
  arm64: use the correct function type for __arm64_sys_ni_syscall
  arm64: use the correct function type in SYSCALL_DEFINE0
  arm64: fix syscall_fn_t type
  block: don't protect generic_make_request_checks with blk_queue_enter
  block: move blk_exit_queue into __blk_release_queue
  selftests: bpf: complete sub-register zero extension checks
  selftests: bpf: move sub-register zero extension checks into subreg.c
  ovl: detect overlapping layers
  drm/i915/icl: Add WaDisableBankHangMode
  ALSA: fireface: Use ULL suffixes for 64-bit constants
  signal/arm64: Use force_sig not force_sig_fault for SIGKILL
  nl80211: fill all policy .type entries
  mac80211: free peer keys before vif down in mesh
  ANDROID: ABI out: Use the extension .xml rather then .out
  drm/mediatek: respect page offset for PRIME mmap calls
  drm/mediatek: adjust ddp clock control flow
  ALSA: hda/realtek - Improve the headset mic for Acer Aspire laptops
  KVM: PPC: Book3S HV: XIVE: Fix the enforced limit on the vCPU identifier
  KVM: PPC: Book3S HV: XIVE: Do not test the EQ flag validity when resetting
  KVM: PPC: Book3S HV: XIVE: Clear file mapping when device is released
  KVM: PPC: Book3S HV: Don't take kvm->lock around kvm_for_each_vcpu
  KVM: PPC: Book3S: Use new mutex to synchronize access to rtas token list
  KVM: PPC: Book3S HV: Use new mutex to synchronize MMU setup
  KVM: PPC: Book3S HV: Avoid touching arch.mmu_ready in XIVE release functions
  Revert "drivers: thermal: tsens: Add new operation to check if a sensor is enabled"
  net/mlx5e: Disable rxhash when CQE compress is enabled
  net/mlx5e: restrict the real_dev of vlan device is the same as uplink device
  net/mlx5: Allocate root ns memory using kzalloc to match kfree
  net/mlx5: Avoid double free in fs init error unwinding path
  net/mlx5: Avoid double free of root ns in the error flow path
  net/mlx5: Fix error handling in mlx5_load()
  Documentation: net-sysfs: Remove duplicate PHY device documentation
  llc: fix skb leak in llc_build_and_send_ui_pkt()
  selftests: pmtu: Fix encapsulating device in pmtu_vti6_link_change_mtu
  dfs_cache: fix a wrong use of kfree in flush_cache_ent()
  fs/cifs/smb2pdu.c: fix buffer free in SMB2_ioctl_free
  cifs: fix memory leak of pneg_inbuf on -EOPNOTSUPP ioctl case
  xenbus: Avoid deadlock during suspend due to open transactions
  xen/pvcalls: Remove set but not used variable
  tracing: Avoid memory leak in predicate_parse()
  habanalabs: fix bug in checking huge page optimization
  mmc: sdhci: Fix SDIO IRQ thread deadlock
  dpaa_eth: use only online CPU portals
  net: mvneta: Fix err code path of probe
  net: stmmac: Do not output error on deferred probe
  Btrfs: fix race updating log root item during fsync
  Btrfs: fix wrong ctime and mtime of a directory after log replay
  ARC: [plat-hsdk] Get rid of inappropriate PHY settings
  ARC: [plat-hsdk]: Add support of Vivante GPU
  ARC: [plat-hsdk]: enable creg-gpio controller
  Btrfs: fix fsync not persisting changed attributes of a directory
  btrfs: qgroup: Check bg while resuming relocation to avoid NULL pointer dereference
  btrfs: reloc: Also queue orphan reloc tree for cleanup to avoid BUG_ON()
  Btrfs: incremental send, fix emission of invalid clone operations
  Btrfs: incremental send, fix file corruption when no-holes feature is enabled
  btrfs: correct zstd workspace manager lock to use spin_lock_bh()
  btrfs: Ensure replaced device doesn't have pending chunk allocation
  ia64: fix build errors by exporting paddr_to_nid()
  ASoC: SOF: Intel: hda: fix the hda init chip
  ASoC: SOF: ipc: fix a race, leading to IPC timeouts
  ASoC: SOF: control: correct the copy size for bytes kcontrol put
  ASoC: SOF: pcm: remove warning - initialize workqueue on open
  ASoC: SOF: pcm: clear hw_params_upon_resume flag correctly
  ASoC: SOF: core: fix error handling with the probe workqueue
  ASoC: SOF: core: remove snd_soc_unregister_component in case of error
  ASoC: SOF: core: remove DSP after unregistering machine driver
  ASoC: soc-core: fixup references at soc_cleanup_card_resources()
  arm64/module: revert to unsigned interpretation of ABS16/32 relocations
  KVM: s390: Do not report unusabled IDs via KVM_CAP_MAX_VCPU_ID
  kvm: fix compile on s390 part 2
  xprtrdma: Use struct_size() in kzalloc()
  tools headers UAPI: Sync kvm.h headers with the kernel sources
  perf record: Fix s390 missing module symbol and warning for non-root users
  perf machine: Read also the end of the kernel
  perf test vmlinux-kallsyms: Ignore aliases to _etext when searching on kallsyms
  perf session: Add missing swap ops for namespace events
  perf namespace: Protect reading thread's namespace
  tools headers UAPI: Sync drm/drm.h with the kernel
  s390/crypto: fix gcm-aes-s390 selftest failures
  s390/zcrypt: Fix wrong dispatching for control domain CPRBs
  s390/pci: fix assignment of bus resources
  s390/pci: fix struct definition for set PCI function
  s390: mark __cpacf_check_opcode() and cpacf_query_func() as __always_inline
  s390: add unreachable() to dump_fault_info() to fix -Wmaybe-uninitialized
  tools headers UAPI: Sync drm/i915_drm.h with the kernel
  tools headers UAPI: Sync linux/fs.h with the kernel
  tools headers UAPI: Sync linux/sched.h with the kernel
  tools arch x86: Sync asm/cpufeatures.h with the with the kernel
  tools include UAPI: Update copy of files related to new fspick, fsmount, fsconfig, fsopen, move_mount and open_tree syscalls
  perf arm64: Fix mksyscalltbl when system kernel headers are ahead of the kernel
  perf data: Fix 'strncat may truncate' build failure with recent gcc
  arm64: Fix the arm64_personality() syscall wrapper redirection
  rtw88: Make some symbols static
  rtw88: avoid circular locking between local->iflist_mtx and rtwdev->mutex
  rsi: Properly initialize data in rsi_sdio_ta_reset
  rtw88: fix unassigned rssi_level in rtw_sta_info
  rtw88: fix subscript above array bounds compiler warning
  fuse: extract helper for range writeback
  fuse: fix copy_file_range() in the writeback case
  mmc: meson-gx: fix irq ack
  mmc: tmio: fix SCC error handling to avoid false positive CRC error
  mmc: tegra: Fix a warning message
  memstick: mspro_block: Fix an error code in mspro_block_issue_req()
  mac80211: mesh: fix RCU warning
  nl80211: fix station_info pertid memory leak
  mac80211: Do not use stack memory with scatterlist for GMAC
  ALSA: line6: Assure canceling delayed work at disconnection
  configfs: Fix use-after-free when accessing sd->s_dentry
  ALSA: hda - Force polling mode on CNL for fixing codec communication
  i2c: synquacer: fix synquacer_i2c_doxfer() return value
  i2c: mlxcpld: Fix wrong initialization order in probe
  i2c: dev: fix potential memory leak in i2cdev_ioctl_rdwr
  RDMA/core: Fix panic when port_data isn't initialized
  RDMA/uverbs: Pass udata on uverbs error unwind
  RDMA/core: Clear out the udata before error unwind
  net: aquantia: tcp checksum 0xffff being handled incorrectly
  net: aquantia: fix LRO with FCS error
  net: aquantia: check rx csum for all packets in LRO session
  net: aquantia: tx clean budget logic error
  vhost: scsi: add weight support
  vhost: vsock: add weight support
  vhost_net: fix possible infinite loop
  vhost: introduce vhost_exceeds_weight()
  virtio: Fix indentation of VIRTIO_MMIO
  virtio: add unlikely() to WARN_ON_ONCE()
  iommu/vt-d: Set the right field for Page Walk Snoop
  iommu/vt-d: Fix lock inversion between iommu->lock and device_domain_lock
  iommu: Add missing new line for dma type
  drm/etnaviv: lock MMU while dumping core
  block: Don't revalidate bdev of hidden gendisk
  loop: Don't change loop device under exclusive opener
  drm/imx: ipuv3-plane: fix atomic update status query for non-plus i.MX6Q
  drm/qxl: drop WARN_ONCE()
  iio: temperature: mlx90632 Relax the compatibility check
  iio: imu: st_lsm6dsx: fix PM support for st_lsm6dsx i2c controller
  staging:iio:ad7150: fix threshold mode config bit
  fuse: add FUSE_WRITE_KILL_PRIV
  fuse: fallocate: fix return with locked inode
  PCI: PM: Avoid possible suspend-to-idle issue
  ACPI: PM: Call pm_set_suspend_via_firmware() during hibernation
  ACPI/PCI: PM: Add missing wakeup.flags.valid checks
  ovl: support the FS_IOC_FS[SG]ETXATTR ioctls
  soundwire: stream: fix out of boundary access on port properties
  net: tulip: de4x5: Drop redundant MODULE_DEVICE_TABLE()
  selftests/tls: add test for sleeping even though there is data
  net/tls: fix no wakeup on partial reads
  selftests/tls: test for lowat overshoot with multiple records
  net/tls: fix lowat calculation if some data came from previous record
  dpaa2-eth: Make constant 64-bit long
  dpaa2-eth: Use PTR_ERR_OR_ZERO where appropriate
  dpaa2-eth: Fix potential spectre issue
  bonding/802.3ad: fix slave link initialization transition states
  io_uring: Fix __io_uring_register() false success
  net: ethtool: Document get_rxfh_context and set_rxfh_context ethtool ops
  net: stmmac: dwmac-mediatek: modify csr_clk value to fix mdio read/write fail
  net: stmmac: fix csr_clk can't be zero issue
  net: stmmac: update rx tail pointer register to fix rx dma hang issue.
  ip_sockglue: Fix missing-check bug in ip_ra_control()
  ipv6_sockglue: Fix a missing-check bug in ip6_ra_control()
  efi: Allow the number of EFI configuration tables entries to be zero
  efi/x86/Add missing error handling to old_memmap 1:1 mapping code
  parisc: Fix compiler warnings in float emulation code
  parisc/slab: cleanup after /proc/slab_allocators removal
  bpf: sockmap, fix use after free from sleep in psock backlog workqueue
  net: sched: don't use tc_action->order during action dump
  cxgb4: Revert "cxgb4: Remove SGE_HOST_PAGE_SIZE dependency on page size"
  net: fec: fix the clk mismatch in failed_reset path
  habanalabs: Avoid using a non-initialized MMU cache mutex
  habanalabs: fix debugfs code
  uapi/habanalabs: add opcode for enable/disable device debug mode
  habanalabs: halt debug engines on user process close
  selftests: rtc: rtctest: specify timeouts
  selftests/harness: Allow test to configure timeout
  selftests/ftrace: Add checkbashisms meta-testcase
  selftests/ftrace: Make a script checkbashisms clean
  media: smsusb: better handle optional alignment
  test_firmware: Use correct snprintf() limit
  genwqe: Prevent an integer overflow in the ioctl
  parport: Fix mem leak in parport_register_dev_model
  fpga: dfl: expand minor range when registering chrdev region
  fpga: dfl: Add lockdep classes for pdata->lock
  fpga: dfl: afu: Pass the correct device to dma_mapping_error()
  fpga: stratix10-soc: fix use-after-free on s10_init()
  w1: ds2408: Fix typo after 49695ac468 (reset on output_write retry with readback)
  kheaders: Do not regenerate archive if config is not changed
  kheaders: Move from proc to sysfs
  drm/amd/display: Don't load DMCU for Raven 1 (v2)
  drm/i915: Maintain consistent documentation subsection ordering
  scripts/sphinx-pre-install: make it handle Sphinx versions
  docs: Fix conf.py for Sphinx 2.0
  vt/fbcon: deinitialize resources in visual_init() after failed memory allocation
  xfs: fix broken log reservation debugging
  clocksource/drivers/timer-ti-dm: Change to new style declaration
  ASoC: core: lock client_mutex while removing link components
  ASoC: simple-card: Restore original configuration of DAI format
  {nl,mac}80211: allow 4addr AP operation on crypto controlled devices
  mac80211_hwsim: mark expected switch fall-through
  mac80211: fix rate reporting inside cfg80211_calculate_bitrate_he()
  mac80211: remove set but not used variable 'old'
  mac80211: handle deauthentication/disassociation from TDLS peer
  gpio: fix gpio-adp5588 build errors
  pinctrl: stmfx: Fix compile issue when CONFIG_OF_GPIO is not defined
  staging: kpc2000: Add dependency on MFD_CORE to kconfig symbol 'KPC2000'
  perf/ring-buffer: Use regular variables for nesting
  perf/ring-buffer: Always use {READ,WRITE}_ONCE() for rb->user_page data
  perf/ring_buffer: Add ordering to rb->nest increment
  perf/ring_buffer: Fix exposing a temporarily decreased data_head
  x86/CPU/AMD: Don't force the CPB cap when running under a hypervisor
  x86/boot: Provide KASAN compatible aliases for string routines
  ALSA: hda/realtek - Enable micmute LED for Huawei laptops
  Input: uinput - add compat ioctl number translation for UI_*_FF_UPLOAD
  Input: silead - add MSSL0017 to acpi_device_id
  cxgb4: offload VLAN flows regardless of VLAN ethtype
  hsr: fix don't prune the master node from the node_db
  net: mvpp2: cls: Fix leaked ethtool_rx_flow_rule
  docs: fix multiple doc build warnings in enumeration.rst
  lib/list_sort: fix kerneldoc build error
  docs: fix numaperf.rst and add it to the doc tree
  doc: Cope with the deprecation of AutoReporter
  doc: Cope with Sphinx logging deprecations
  bpf: sockmap, restore sk_write_space when psock gets dropped
  selftests: bpf: add zero extend checks for ALU32 and/or/xor
  bpf, riscv: clear target register high 32-bits for and/or/xor on ALU32
  spi: abort spi_sync if failed to prepare_transfer_hardware
  ALSA: hda/realtek - Set default power save node to 0
  ipv4/igmp: fix build error if !CONFIG_IP_MULTICAST
  powerpc/kexec: Fix loading of kernel + initramfs with kexec_file_load()
  MIPS: TXx9: Fix boot crash in free_initmem()
  MIPS: remove a space after -I to cope with header search paths for VDSO
  MIPS: mark ginvt() as __always_inline
  ipv4/igmp: fix another memory leak in igmpv3_del_delrec()
  bnxt_en: Device serial number is supported only for PFs.
  bnxt_en: Reduce memory usage when running in kdump kernel.
  bnxt_en: Fix possible BUG() condition when calling pci_disable_msix().
  bnxt_en: Fix aggregation buffer leak under OOM condition.
  ipv6: Fix redirect with VRF
  net: stmmac: fix reset gpio free missing
  mISDN: make sure device name is NUL terminated
  net: macb: save/restore the remaining registers and features
  media: dvb: warning about dvb frequency limits produces too much noise
  net/tls: don't ignore netdev notifications if no TLS features
  net/tls: fix state removal with feature flags off
  net/tls: avoid NULL-deref on resync during device removal
  Documentation: add TLS offload documentation
  Documentation: tls: RSTify the ktls documentation
  Documentation: net: move device drivers docs to a submenu
  mISDN: Fix indenting in dsp_cmx.c
  ocelot: Dont allocate another multicast list, use __dev_mc_sync
  Validate required parameters in inet6_validate_link_af
  xhci: Use %zu for printing size_t type
  xhci: Convert xhci_handshake() to use readl_poll_timeout_atomic()
  xhci: Fix immediate data transfer if buffer is already DMA mapped
  usb: xhci: avoid null pointer deref when bos field is NULL
  usb: xhci: Fix a potential null pointer dereference in xhci_debugfs_create_endpoint()
  xhci: update bounce buffer with correct sg num
  media: usb: siano: Fix false-positive "uninitialized variable" warning
  spi: spi-fsl-spi: call spi_finalize_current_message() at the end
  ALSA: hda/realtek - Check headset type by unplug and resume
  powerpc/perf: Fix MMCRA corruption by bhrb_filter
  powerpc/powernv: Return for invalid IMC domain
  HID: logitech-hidpp: Add support for the S510 remote control
  HID: multitouch: handle faulty Elo touch device
  selftests: netfilter: add flowtable test script
  netfilter: nft_flow_offload: IPCB is only valid for ipv4 family
  netfilter: nft_flow_offload: don't offload when sequence numbers need adjustment
  netfilter: nft_flow_offload: set liberal tracking mode for tcp
  netfilter: nf_flow_table: ignore DF bit setting
  ASoC: Intel: sof-rt5682: fix AMP quirk support
  ASoC: Intel: sof-rt5682: fix for codec button mapping
  clk: ti: clkctrl: Fix clkdm_clk handling
  clk: imx: imx8mm: fix int pll clk gate
  clk: sifive: restrict Kconfig scope for the FU540 PRCI driver
  RDMA/hns: Fix PD memory leak for internal allocation
  netfilter: nat: fix udp checksum corruption
  selftests: netfilter: missing error check when setting up veth interface
  RDMA/srp: Rename SRP sysfs name after IB device rename trigger
  ipvs: Fix use-after-free in ip_vs_in
  ARC: [plat-hsdk]: Add missing FIFO size entry in GMAC node
  ARC: [plat-hsdk]: Add missing multicast filter bins number to GMAC node
  samples, bpf: suppress compiler warning
  samples, bpf: fix to change the buffer size for read()
  bpf: Check sk_fullsock() before returning from bpf_sk_lookup()
  bpf: fix out-of-bounds read in __bpf_skc_lookup
  Documentation/networking: fix af_xdp.rst Sphinx warnings
  netfilter: nft_fib: Fix existence check support
  netfilter: nf_queue: fix reinject verdict handling
  dmaengine: sprd: Add interrupt support for 2-stage transfer
  dmaengine: sprd: Fix the right place to configure 2-stage transfer
  dmaengine: sprd: Fix block length overflow
  dmaengine: sprd: Fix the incorrect start for 2-stage destination channels
  dmaengine: sprd: Add validation of current descriptor in irq handler
  dmaengine: sprd: Fix the possible crash when getting descriptor status
  tty: max310x: Fix external crystal register setup
  serial: sh-sci: disable DMA for uart_console
  serial: imx: remove log spamming error message
  tty: serial: msm_serial: Fix XON/XOFF
  USB: serial: option: add Telit 0x1260 and 0x1261 compositions
  USB: serial: pl2303: add Allied Telesis VT-Kit3
  USB: serial: option: add support for Simcom SIM7500/SIM7600 RNDIS mode
  dmaengine: tegra210-adma: Fix spelling
  dmaengine: tegra210-adma: Fix channel FIFO configuration
  dmaengine: tegra210-adma: Fix crash during probe
  dmaengine: mediatek-cqdma: sleeping in atomic context
  dmaengine: dw-axi-dmac: fix null dereference when pointer first is null
  perf/x86/intel/ds: Fix EVENT vs. UEVENT PEBS constraints
  USB: rio500: update Documentation
  USB: rio500: simplify locking
  USB: rio500: fix memory leak in close after disconnect
  USB: rio500: refuse more than one device at a time
  usbip: usbip_host: fix BUG: sleeping function called from invalid context
  USB: sisusbvga: fix oops in error path of sisusb_probe
  USB: Add LPM quirk for Surface Dock GigE adapter
  media: usb: siano: Fix general protection fault in smsusb
  usb: mtu3: fix up undefined reference to usb_debug_root
  USB: Fix slab-out-of-bounds write in usb_get_bos_descriptor
  Input: elantech - enable middle button support on 2 ThinkPads
  dmaengine: fsl-qdma: Add improvement
  dmaengine: jz4780: Fix transfers being ACKed too soon
  gcc-plugins: Fix build failures under Darwin host
  MAINTAINERS: Update Stefan Wahren email address
  netfilter: nf_tables: fix oops during rule dump
  ARC: mm: SIGSEGV userspace trying to access kernel virtual memory
  ARC: fix build warnings
  ARM: dts: bcm: Add missing device_type = "memory" property
  soc: bcm: brcmstb: biuctrl: Register writes require a barrier
  soc: brcmstb: Fix error path for unsupported CPUs
  ARM: dts: dra71x: Disable usb4_tm target module
  ARM: dts: dra71x: Disable rtc target module
  ARM: dts: dra76x: Disable usb4_tm target module
  ARM: dts: dra76x: Disable rtc target module
  ASoC: simple-card: Fix configuration of DAI format
  ASoC: Intel: soc-acpi: Fix machine selection order
  ASoC: rt5677-spi: Handle over reading when flipping bytes
  ASoC: soc-dpm: fixup DAI active unbalance
  pinctrl: intel: Clear interrupt status in mask/unmask callback
  pinctrl: intel: Use GENMASK() consistently
  parisc: Allow building 64-bit kernel without -mlong-calls compiler option
  parisc: Kconfig: remove ARCH_DISCARD_MEMBLOCK
  staging: wilc1000: Fix some double unlock bugs in wilc_wlan_cleanup()
  staging: vc04_services: prevent integer overflow in create_pagelist()
  Staging: vc04_services: Fix a couple error codes
  staging: wlan-ng: fix adapter initialization failure
  staging: kpc2000: double unlock in error handling in kpc_dma_transfer()
  staging: kpc2000: Fix build error without CONFIG_UIO
  staging: kpc2000: fix build error on xtensa
  staging: erofs: set sb->s_root to NULL when failing from __getname()
  ARM: imx: cpuidle-imx6sx: Restrict the SW2ISO increase to i.MX6SX
  firmware: imx: SCU irq should ONLY be enabled after SCU IPC is ready
  arm64: imx: Fix build error without CONFIG_SOC_BUS
  ima: fix wrong signed policy requirement when not appraising
  x86/ima: Check EFI_RUNTIME_SERVICES before using
  stacktrace: Unbreak stack_trace_save_tsk_reliable()
  HID: wacom: Sync INTUOSP2_BT touch state after each frame if necessary
  HID: wacom: Correct button numbering 2nd-gen Intuos Pro over Bluetooth
  HID: wacom: Send BTN_TOUCH in response to INTUOSP2_BT eraser contact
  HID: wacom: Don't report anything prior to the tool entering range
  HID: wacom: Don't set tool type until we're in range
  ASoC: cs42xx8: Add regcache mask dirty
  regulator: tps6507x: Fix boot regression due to testing wrong init_data pointer
  ASoC: fsl_asrc: Fix the issue about unsupported rate
  spi: bitbang: Fix NULL pointer dereference in spi_unregister_master
  Input: elan_i2c - increment wakeup count if wake source
  wireless: Skip directory when generating certificates
  ASoC: ak4458: rstn_control - return a non-zero on error only
  ASoC: soc-pcm: BE dai needs prepare when pause release after resume
  ASoC: ak4458: add return value for ak4458_probe
  ASoC : cs4265 : readable register too low
  ASoC: SOF: fix error in verbose ipc command parsing
  ASoC: SOF: fix race in FW boot timeout handling
  ASoC: SOF: nocodec: fix undefined reference
  iio: adc: ti-ads8688: fix timestamp is not updated in buffer
  iio: dac: ds4422/ds4424 fix chip verification
  HID: rmi: Use SET_REPORT request on control endpoint for Acer Switch 3 and 5
  HID: logitech-hidpp: add support for the MX5500 keyboard
  HID: logitech-dj: add support for the Logitech MX5500's Bluetooth Mini-Receiver
  HID: i2c-hid: add iBall Aer3 to descriptor override
  spi: Fix Raspberry Pi breakage
  ARM: dts: dra76x: Update MMC2_HS200_MANUAL1 iodelay values
  ARM: dts: am57xx-idk: Remove support for voltage switching for SD card
  bus: ti-sysc: Handle devices with no control registers
  ARM: dts: Configure osc clock for d_can on am335x
  iio: imu: mpu6050: Fix FIFO layout for ICM20602
  lkdtm/bugs: Adjust recursion test to avoid elision
  lkdtm/usercopy: Moves the KERNEL_DS test to non-canonical
  iio: adc: ads124: avoid buffer overflow
  iio: adc: modify NPCM ADC read reference voltage

Change-Id: I98c823993370027391cc21dfb239c3049f025136
Signed-off-by: Raghavendra Rao Ananta <rananta@codeaurora.org>
2019-07-01 17:41:24 -07:00
Al Viro
5e8a0770c0 9p: switch to ->free_inode()
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2019-05-01 22:43:23 -04:00
Hou Tao
5e3cc1ee14 9p: use inode->i_lock to protect i_size_write() under 32-bit
Use inode->i_lock to protect i_size_write(), else i_size_read() in
generic_fillattr() may loop infinitely in read_seqcount_begin() when
multiple processes invoke v9fs_vfs_getattr() or v9fs_vfs_getattr_dotl()
simultaneously under 32-bit SMP environment, and a soft lockup will be
triggered as show below:

  watchdog: BUG: soft lockup - CPU#5 stuck for 22s! [stat:2217]
  Modules linked in:
  CPU: 5 PID: 2217 Comm: stat Not tainted 5.0.0-rc1-00005-g7f702faf5a9e #4
  Hardware name: Generic DT based system
  PC is at generic_fillattr+0x104/0x108
  LR is at 0xec497f00
  pc : [<802b8898>]    lr : [<ec497f00>]    psr: 200c0013
  sp : ec497e20  ip : ed608030  fp : ec497e3c
  r10: 00000000  r9 : ec497f00  r8 : ed608030
  r7 : ec497ebc  r6 : ec497f00  r5 : ee5c1550  r4 : ee005780
  r3 : 0000052d  r2 : 00000000  r1 : ec497f00  r0 : ed608030
  Flags: nzCv  IRQs on  FIQs on  Mode SVC_32  ISA ARM  Segment none
  Control: 10c5387d  Table: ac48006a  DAC: 00000051
  CPU: 5 PID: 2217 Comm: stat Not tainted 5.0.0-rc1-00005-g7f702faf5a9e #4
  Hardware name: Generic DT based system
  Backtrace:
  [<8010d974>] (dump_backtrace) from [<8010dc88>] (show_stack+0x20/0x24)
  [<8010dc68>] (show_stack) from [<80a1d194>] (dump_stack+0xb0/0xdc)
  [<80a1d0e4>] (dump_stack) from [<80109f34>] (show_regs+0x1c/0x20)
  [<80109f18>] (show_regs) from [<801d0a80>] (watchdog_timer_fn+0x280/0x2f8)
  [<801d0800>] (watchdog_timer_fn) from [<80198658>] (__hrtimer_run_queues+0x18c/0x380)
  [<801984cc>] (__hrtimer_run_queues) from [<80198e60>] (hrtimer_run_queues+0xb8/0xf0)
  [<80198da8>] (hrtimer_run_queues) from [<801973e8>] (run_local_timers+0x28/0x64)
  [<801973c0>] (run_local_timers) from [<80197460>] (update_process_times+0x3c/0x6c)
  [<80197424>] (update_process_times) from [<801ab2b8>] (tick_nohz_handler+0xe0/0x1bc)
  [<801ab1d8>] (tick_nohz_handler) from [<80843050>] (arch_timer_handler_virt+0x38/0x48)
  [<80843018>] (arch_timer_handler_virt) from [<80180a64>] (handle_percpu_devid_irq+0x8c/0x240)
  [<801809d8>] (handle_percpu_devid_irq) from [<8017ac20>] (generic_handle_irq+0x34/0x44)
  [<8017abec>] (generic_handle_irq) from [<8017b344>] (__handle_domain_irq+0x6c/0xc4)
  [<8017b2d8>] (__handle_domain_irq) from [<801022e0>] (gic_handle_irq+0x4c/0x88)
  [<80102294>] (gic_handle_irq) from [<80101a30>] (__irq_svc+0x70/0x98)
  [<802b8794>] (generic_fillattr) from [<8056b284>] (v9fs_vfs_getattr_dotl+0x74/0xa4)
  [<8056b210>] (v9fs_vfs_getattr_dotl) from [<802b8904>] (vfs_getattr_nosec+0x68/0x7c)
  [<802b889c>] (vfs_getattr_nosec) from [<802b895c>] (vfs_getattr+0x44/0x48)
  [<802b8918>] (vfs_getattr) from [<802b8a74>] (vfs_statx+0x9c/0xec)
  [<802b89d8>] (vfs_statx) from [<802b9428>] (sys_lstat64+0x48/0x78)
  [<802b93e0>] (sys_lstat64) from [<80101000>] (ret_fast_syscall+0x0/0x28)

[dominique.martinet@cea.fr: updated comment to not refer to a function
in another subsystem]
Link: http://lkml.kernel.org/r/20190124063514.8571-2-houtao1@huawei.com
Cc: stable@vger.kernel.org
Fixes: 7549ae3e81 ("9p: Use the i_size_[read, write]() macros instead of using inode->i_size directly.")
Reported-by: Xing Gaopeng <xingaopeng@huawei.com>
Signed-off-by: Hou Tao <houtao1@huawei.com>
Signed-off-by: Dominique Martinet <dominique.martinet@cea.fr>
2019-03-03 14:04:07 +09:00
Al Viro
44907d7900 get rid of 'opened' argument of ->atomic_open() - part 3
now it can be done...

Acked-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2018-07-12 10:04:20 -04:00
Al Viro
be12af3ef5 getting rid of 'opened' argument of ->atomic_open() - part 1
'opened' argument of finish_open() is unused.  Kill it.

Signed-off-by Al Viro <viro@zeniv.linux.org.uk>
2018-07-12 10:04:19 -04:00
Al Viro
73a09dd943 introduce FMODE_CREATED and switch to it
Parallel to FILE_CREATED, goes into ->f_mode instead of *opened.
NFS is a bit of a wart here - it doesn't have file at the point
where FILE_CREATED used to be set, so we need to propagate it
there (for now).  IMA is another one (here and everywhere)...

Note that this needs do_dentry_open() to leave old bits in ->f_mode
alone - we want it to preserve FMODE_CREATED if it had been already
set (no other bit can be there).

Acked-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2018-07-12 10:04:18 -04:00
Al Viro
500e2ab6c3 9p: unify paths in v9fs_vfs_lookup()
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2018-05-22 14:28:02 -04:00
Eryu Guan
ac89b2ef9b 9p: don't maintain dir i_nlink if the exported fs doesn't either
If the exported filesystem dir on 9p server doesn't maintain accurate
i_nlink count, e.g.  always reports i_nlink as 1, then 9p should not
maintain nlink count either, otherwise drop_link would report warning
with i_nlink being zero.

For example:

 - overlayfs sets nlink to 1 for merged dir

 - ext4 (with dir_nlink feature enabled) sets nlink to 1 if a dir has
   more than EXT4_LINK_MAX (65000) links.

In this case, everytime a stat(2) call (getattr) on such exported dirs
on 9p client side, the i_nlink gets reset to 1, then operations like
rmdir(2), unlink(2) and rename(2) would cause the dir nlink to go to
zero (then negative), which results in warnings in drop_nlink() and/or
inc_nlink() calls.

This can be reproduced easily as the following steps:

 - export a merged overlayfs dir via qemu virtfs to guest

 - mount the exported virtfs in guest

 - create two sub-directories in the root dir of the mounted 9pfs

 - stat the root dir of 9pfs, this resets nlink to 1

 - remove all subdirs, the second unlink/rmdir would trigger warning

  ------------[ cut here ]------------
  WARNING: CPU: 3 PID: 1284 at fs/inode.c:282 drop_nlink+0x3e/0x50
  ...
  Call Trace:
    dump_stack+0x63/0x81
    __warn+0xcb/0xf0
    warn_slowpath_null+0x1d/0x20
    drop_nlink+0x3e/0x50
    v9fs_remove+0xaa/0x130 [9p]
    v9fs_vfs_rmdir+0x13/0x20 [9p]
    vfs_rmdir+0xb7/0x130
    do_rmdir+0x1b8/0x230
    SyS_unlinkat+0x22/0x30
    do_syscall_64+0x67/0x180
  ---[ end trace 43758d8ba91e603b ]---

Fix it by leaving i_nlink to be 1 and don't drop nlink if a directory
has nlink <= 2, which indicates that the underlying exported fs doesn't
maintain nlink count accurately.  This follows what ext4 does in
ext4_dec_count().

Link: http://lkml.kernel.org/r/20180312053829.4367-1-eguan@linux.alibaba.com
Signed-off-by: Eryu Guan <eguan@linux.alibaba.com>
Reviewed-by: Yiwen Jiang <jiangyiwen@huawei.com>
Tested-by: Roman Kapl <code@rkapl.cz>
Cc: Caspar Zhang <caspar@linux.alibaba.com>
Cc: Eric Van Hensbergen <ericvh@gmail.com>
Cc: Ron Minnich <rminnich@sandia.gov>
Cc: Latchesar Ionkov <lucho@ionkov.net>
Cc: <v9fs-developer@lists.sourceforge.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2018-04-05 21:36:22 -07:00
Tuomas Tynkkynen
8ee0316315 fs/9p: Compare qid.path in v9fs_test_inode
Commit fd2421f544 ("fs/9p: When doing inode lookup compare qid details
and inode mode bits.") transformed v9fs_qid_iget() to use iget5_locked()
instead of iget_locked(). However, the test() callback is not checking
fid.path at all, which means that a lookup in the inode cache can now
accidentally locate a completely wrong inode from the same inode hash
bucket if the other fields (qid.type and qid.version) match.

Fixes: fd2421f544 ("fs/9p: When doing inode lookup compare qid details and inode mode bits.")
Cc: stable@vger.kernel.org
Reviewed-by: Latchesar Ionkov <lucho@ionkov.net>
Signed-off-by: Tuomas Tynkkynen <tuomas@tuxera.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2017-10-23 23:10:01 -04:00
Linus Torvalds
0710f3ff91 Merge branch 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull misc final vfs updates from Al Viro:
 "A few unrelated patches that got beating in -next.

  Everything else will have to go into the next window ;-/"

* 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
  hfs: fix hfs_readdir()
  selftest for default_file_splice_read() infoleak
  9p: constify ->d_name handling
2017-03-03 21:44:35 -08:00
David Howells
a528d35e8b statx: Add a system call to make enhanced file info available
Add a system call to make extended file information available, including
file creation and some attribute flags where available through the
underlying filesystem.

The getattr inode operation is altered to take two additional arguments: a
u32 request_mask and an unsigned int flags that indicate the
synchronisation mode.  This change is propagated to the vfs_getattr*()
function.

Functions like vfs_stat() are now inline wrappers around new functions
vfs_statx() and vfs_statx_fd() to reduce stack usage.

========
OVERVIEW
========

The idea was initially proposed as a set of xattrs that could be retrieved
with getxattr(), but the general preference proved to be for a new syscall
with an extended stat structure.

A number of requests were gathered for features to be included.  The
following have been included:

 (1) Make the fields a consistent size on all arches and make them large.

 (2) Spare space, request flags and information flags are provided for
     future expansion.

 (3) Better support for the y2038 problem [Arnd Bergmann] (tv_sec is an
     __s64).

 (4) Creation time: The SMB protocol carries the creation time, which could
     be exported by Samba, which will in turn help CIFS make use of
     FS-Cache as that can be used for coherency data (stx_btime).

     This is also specified in NFSv4 as a recommended attribute and could
     be exported by NFSD [Steve French].

 (5) Lightweight stat: Ask for just those details of interest, and allow a
     netfs (such as NFS) to approximate anything not of interest, possibly
     without going to the server [Trond Myklebust, Ulrich Drepper, Andreas
     Dilger] (AT_STATX_DONT_SYNC).

 (6) Heavyweight stat: Force a netfs to go to the server, even if it thinks
     its cached attributes are up to date [Trond Myklebust]
     (AT_STATX_FORCE_SYNC).

And the following have been left out for future extension:

 (7) Data version number: Could be used by userspace NFS servers [Aneesh
     Kumar].

     Can also be used to modify fill_post_wcc() in NFSD which retrieves
     i_version directly, but has just called vfs_getattr().  It could get
     it from the kstat struct if it used vfs_xgetattr() instead.

     (There's disagreement on the exact semantics of a single field, since
     not all filesystems do this the same way).

 (8) BSD stat compatibility: Including more fields from the BSD stat such
     as creation time (st_btime) and inode generation number (st_gen)
     [Jeremy Allison, Bernd Schubert].

 (9) Inode generation number: Useful for FUSE and userspace NFS servers
     [Bernd Schubert].

     (This was asked for but later deemed unnecessary with the
     open-by-handle capability available and caused disagreement as to
     whether it's a security hole or not).

(10) Extra coherency data may be useful in making backups [Andreas Dilger].

     (No particular data were offered, but things like last backup
     timestamp, the data version number and the DOS archive bit would come
     into this category).

(11) Allow the filesystem to indicate what it can/cannot provide: A
     filesystem can now say it doesn't support a standard stat feature if
     that isn't available, so if, for instance, inode numbers or UIDs don't
     exist or are fabricated locally...

     (This requires a separate system call - I have an fsinfo() call idea
     for this).

(12) Store a 16-byte volume ID in the superblock that can be returned in
     struct xstat [Steve French].

     (Deferred to fsinfo).

(13) Include granularity fields in the time data to indicate the
     granularity of each of the times (NFSv4 time_delta) [Steve French].

     (Deferred to fsinfo).

(14) FS_IOC_GETFLAGS value.  These could be translated to BSD's st_flags.
     Note that the Linux IOC flags are a mess and filesystems such as Ext4
     define flags that aren't in linux/fs.h, so translation in the kernel
     may be a necessity (or, possibly, we provide the filesystem type too).

     (Some attributes are made available in stx_attributes, but the general
     feeling was that the IOC flags were to ext[234]-specific and shouldn't
     be exposed through statx this way).

(15) Mask of features available on file (eg: ACLs, seclabel) [Brad Boyer,
     Michael Kerrisk].

     (Deferred, probably to fsinfo.  Finding out if there's an ACL or
     seclabal might require extra filesystem operations).

(16) Femtosecond-resolution timestamps [Dave Chinner].

     (A __reserved field has been left in the statx_timestamp struct for
     this - if there proves to be a need).

(17) A set multiple attributes syscall to go with this.

===============
NEW SYSTEM CALL
===============

The new system call is:

	int ret = statx(int dfd,
			const char *filename,
			unsigned int flags,
			unsigned int mask,
			struct statx *buffer);

The dfd, filename and flags parameters indicate the file to query, in a
similar way to fstatat().  There is no equivalent of lstat() as that can be
emulated with statx() by passing AT_SYMLINK_NOFOLLOW in flags.  There is
also no equivalent of fstat() as that can be emulated by passing a NULL
filename to statx() with the fd of interest in dfd.

Whether or not statx() synchronises the attributes with the backing store
can be controlled by OR'ing a value into the flags argument (this typically
only affects network filesystems):

 (1) AT_STATX_SYNC_AS_STAT tells statx() to behave as stat() does in this
     respect.

 (2) AT_STATX_FORCE_SYNC will require a network filesystem to synchronise
     its attributes with the server - which might require data writeback to
     occur to get the timestamps correct.

 (3) AT_STATX_DONT_SYNC will suppress synchronisation with the server in a
     network filesystem.  The resulting values should be considered
     approximate.

mask is a bitmask indicating the fields in struct statx that are of
interest to the caller.  The user should set this to STATX_BASIC_STATS to
get the basic set returned by stat().  It should be noted that asking for
more information may entail extra I/O operations.

buffer points to the destination for the data.  This must be 256 bytes in
size.

======================
MAIN ATTRIBUTES RECORD
======================

The following structures are defined in which to return the main attribute
set:

	struct statx_timestamp {
		__s64	tv_sec;
		__s32	tv_nsec;
		__s32	__reserved;
	};

	struct statx {
		__u32	stx_mask;
		__u32	stx_blksize;
		__u64	stx_attributes;
		__u32	stx_nlink;
		__u32	stx_uid;
		__u32	stx_gid;
		__u16	stx_mode;
		__u16	__spare0[1];
		__u64	stx_ino;
		__u64	stx_size;
		__u64	stx_blocks;
		__u64	__spare1[1];
		struct statx_timestamp	stx_atime;
		struct statx_timestamp	stx_btime;
		struct statx_timestamp	stx_ctime;
		struct statx_timestamp	stx_mtime;
		__u32	stx_rdev_major;
		__u32	stx_rdev_minor;
		__u32	stx_dev_major;
		__u32	stx_dev_minor;
		__u64	__spare2[14];
	};

The defined bits in request_mask and stx_mask are:

	STATX_TYPE		Want/got stx_mode & S_IFMT
	STATX_MODE		Want/got stx_mode & ~S_IFMT
	STATX_NLINK		Want/got stx_nlink
	STATX_UID		Want/got stx_uid
	STATX_GID		Want/got stx_gid
	STATX_ATIME		Want/got stx_atime{,_ns}
	STATX_MTIME		Want/got stx_mtime{,_ns}
	STATX_CTIME		Want/got stx_ctime{,_ns}
	STATX_INO		Want/got stx_ino
	STATX_SIZE		Want/got stx_size
	STATX_BLOCKS		Want/got stx_blocks
	STATX_BASIC_STATS	[The stuff in the normal stat struct]
	STATX_BTIME		Want/got stx_btime{,_ns}
	STATX_ALL		[All currently available stuff]

stx_btime is the file creation time, stx_mask is a bitmask indicating the
data provided and __spares*[] are where as-yet undefined fields can be
placed.

Time fields are structures with separate seconds and nanoseconds fields
plus a reserved field in case we want to add even finer resolution.  Note
that times will be negative if before 1970; in such a case, the nanosecond
fields will also be negative if not zero.

The bits defined in the stx_attributes field convey information about a
file, how it is accessed, where it is and what it does.  The following
attributes map to FS_*_FL flags and are the same numerical value:

	STATX_ATTR_COMPRESSED		File is compressed by the fs
	STATX_ATTR_IMMUTABLE		File is marked immutable
	STATX_ATTR_APPEND		File is append-only
	STATX_ATTR_NODUMP		File is not to be dumped
	STATX_ATTR_ENCRYPTED		File requires key to decrypt in fs

Within the kernel, the supported flags are listed by:

	KSTAT_ATTR_FS_IOC_FLAGS

[Are any other IOC flags of sufficient general interest to be exposed
through this interface?]

New flags include:

	STATX_ATTR_AUTOMOUNT		Object is an automount trigger

These are for the use of GUI tools that might want to mark files specially,
depending on what they are.

Fields in struct statx come in a number of classes:

 (0) stx_dev_*, stx_blksize.

     These are local system information and are always available.

 (1) stx_mode, stx_nlinks, stx_uid, stx_gid, stx_[amc]time, stx_ino,
     stx_size, stx_blocks.

     These will be returned whether the caller asks for them or not.  The
     corresponding bits in stx_mask will be set to indicate whether they
     actually have valid values.

     If the caller didn't ask for them, then they may be approximated.  For
     example, NFS won't waste any time updating them from the server,
     unless as a byproduct of updating something requested.

     If the values don't actually exist for the underlying object (such as
     UID or GID on a DOS file), then the bit won't be set in the stx_mask,
     even if the caller asked for the value.  In such a case, the returned
     value will be a fabrication.

     Note that there are instances where the type might not be valid, for
     instance Windows reparse points.

 (2) stx_rdev_*.

     This will be set only if stx_mode indicates we're looking at a
     blockdev or a chardev, otherwise will be 0.

 (3) stx_btime.

     Similar to (1), except this will be set to 0 if it doesn't exist.

=======
TESTING
=======

The following test program can be used to test the statx system call:

	samples/statx/test-statx.c

Just compile and run, passing it paths to the files you want to examine.
The file is built automatically if CONFIG_SAMPLES is enabled.

Here's some example output.  Firstly, an NFS directory that crosses to
another FSID.  Note that the AUTOMOUNT attribute is set because transiting
this directory will cause d_automount to be invoked by the VFS.

	[root@andromeda ~]# /tmp/test-statx -A /warthog/data
	statx(/warthog/data) = 0
	results=7ff
	  Size: 4096            Blocks: 8          IO Block: 1048576  directory
	Device: 00:26           Inode: 1703937     Links: 125
	Access: (3777/drwxrwxrwx)  Uid:     0   Gid:  4041
	Access: 2016-11-24 09:02:12.219699527+0000
	Modify: 2016-11-17 10:44:36.225653653+0000
	Change: 2016-11-17 10:44:36.225653653+0000
	Attributes: 0000000000001000 (-------- -------- -------- -------- -------- -------- ---m---- --------)

Secondly, the result of automounting on that directory.

	[root@andromeda ~]# /tmp/test-statx /warthog/data
	statx(/warthog/data) = 0
	results=7ff
	  Size: 4096            Blocks: 8          IO Block: 1048576  directory
	Device: 00:27           Inode: 2           Links: 125
	Access: (3777/drwxrwxrwx)  Uid:     0   Gid:  4041
	Access: 2016-11-24 09:02:12.219699527+0000
	Modify: 2016-11-17 10:44:36.225653653+0000
	Change: 2016-11-17 10:44:36.225653653+0000

Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2017-03-02 20:51:15 -05:00
Al Viro
7880b43bdf 9p: constify ->d_name handling
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2017-01-12 04:01:17 -05:00
Miklos Szeredi
dfeef68862 vfs: remove ".readlink = generic_readlink" assignments
If .readlink == NULL implies generic_readlink().

Generated by:

to_del="\.readlink.*=.*generic_readlink"
for i in `git grep -l $to_del`; do sed -i "/$to_del"/d $i; done

Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
2016-12-09 16:45:04 +01:00
Linus Torvalds
101105b171 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull more vfs updates from Al Viro:
 ">rename2() work from Miklos + current_time() from Deepa"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
  fs: Replace current_fs_time() with current_time()
  fs: Replace CURRENT_TIME_SEC with current_time() for inode timestamps
  fs: Replace CURRENT_TIME with current_time() for inode timestamps
  fs: proc: Delete inode time initializations in proc_alloc_inode()
  vfs: Add current_time() api
  vfs: add note about i_op->rename changes to porting
  fs: rename "rename2" i_op to "rename"
  vfs: remove unused i_op->rename
  fs: make remaining filesystems use .rename2
  libfs: support RENAME_NOREPLACE in simple_rename()
  fs: support RENAME_NOREPLACE for local filesystems
  ncpfs: fix unused variable warning
2016-10-10 20:16:43 -07:00
Al Viro
3873691e5a Merge remote-tracking branch 'ovl/rename2' into for-linus 2016-10-10 23:02:51 -04:00
Deepa Dinamani
078cd8279e fs: Replace CURRENT_TIME with current_time() for inode timestamps
CURRENT_TIME macro is not appropriate for filesystems as it
doesn't use the right granularity for filesystem timestamps.
Use current_time() instead.

CURRENT_TIME is also not y2038 safe.

This is also in preparation for the patch that transitions
vfs timestamps to use 64 bit time and hence make them
y2038 safe. As part of the effort current_time() will be
extended to do range checks. Hence, it is necessary for all
file system timestamps to use current_time(). Also,
current_time() will be transitioned along with vfs to be
y2038 safe.

Note that whenever a single call to current_time() is used
to change timestamps in different inodes, it is because they
share the same time granularity.

Signed-off-by: Deepa Dinamani <deepa.kernel@gmail.com>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Felipe Balbi <balbi@kernel.org>
Acked-by: Steven Whitehouse <swhiteho@redhat.com>
Acked-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
Acked-by: David Sterba <dsterba@suse.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2016-09-27 21:06:21 -04:00
Miklos Szeredi
2773bf00ae fs: rename "rename2" i_op to "rename"
Generated patch:

sed -i "s/\.rename2\t/\.rename\t\t/" `git grep -wl rename2`
sed -i "s/\brename2\b/rename/g" `git grep -wl rename2`

Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
2016-09-27 11:03:58 +02:00
Miklos Szeredi
1cd66c93ba fs: make remaining filesystems use .rename2
This is trivial to do:

 - add flags argument to foo_rename()
 - check if flags is zero
 - assign foo_rename() to .rename2 instead of .rename

This doesn't mean it's impossible to support RENAME_NOREPLACE for these
filesystems, but it is not trivial, like for local filesystems.
RENAME_NOREPLACE must guarantee atomicity (i.e. it shouldn't be possible
for a file to be created on one host while it is overwritten by rename on
another host).

Filesystems converted:

9p, afs, ceph, coda, ecryptfs, kernfs, lustre, ncpfs, nfs, ocfs2, orangefs.

After this, we can get rid of the duplicate interfaces for rename.

Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: David Howells <dhowells@redhat.com> [AFS]
Acked-by: Mike Marshall <hubcap@omnibond.com>
Cc: Eric Van Hensbergen <ericvh@gmail.com>
Cc: Ilya Dryomov <idryomov@gmail.com>
Cc: Jan Harkes <jaharkes@cs.cmu.edu>
Cc: Tyler Hicks <tyhicks@canonical.com>
Cc: Oleg Drokin <oleg.drokin@intel.com>
Cc: Trond Myklebust <trond.myklebust@primarydata.com>
Cc: Mark Fasheh <mfasheh@suse.com>
2016-09-27 11:03:58 +02:00
Jan Kara
31051c85b5 fs: Give dentry to inode_change_ok() instead of inode
inode_change_ok() will be resposible for clearing capabilities and IMA
extended attributes and as such will need dentry. Give it as an argument
to inode_change_ok() instead of an inode. Also rename inode_change_ok()
to setattr_prepare() to better relect that it does also some
modifications in addition to checks.

Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jan Kara <jack@suse.cz>
2016-09-22 10:56:19 +02:00
Al Viro
7d50a29fe4 9p: use clone_fid()
in a bunch of places it cleans the things up

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2016-08-03 11:12:12 -04:00
Al Viro
797fc16d8f 9p: fix braino introduced in "9p: new helper - v9fs_parent_fid()"
In v9fs_vfs_rename() we need to clone the parents' fids, not just
find them.

Spotted-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2016-08-03 11:02:48 -04:00
Linus Torvalds
6784725ab0 Merge branch 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull vfs updates from Al Viro:
 "Assorted cleanups and fixes.

  Probably the most interesting part long-term is ->d_init() - that will
  have a bunch of followups in (at least) ceph and lustre, but we'll
  need to sort the barrier-related rules before it can get used for
  really non-trivial stuff.

  Another fun thing is the merge of ->d_iput() callers (dentry_iput()
  and dentry_unlink_inode()) and a bunch of ->d_compare() ones (all
  except the one in __d_lookup_lru())"

* 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (26 commits)
  fs/dcache.c: avoid soft-lockup in dput()
  vfs: new d_init method
  vfs: Update lookup_dcache() comment
  bdev: get rid of ->bd_inodes
  Remove last traces of ->sync_page
  new helper: d_same_name()
  dentry_cmp(): use lockless_dereference() instead of smp_read_barrier_depends()
  vfs: clean up documentation
  vfs: document ->d_real()
  vfs: merge .d_select_inode() into .d_real()
  unify dentry_iput() and dentry_unlink_inode()
  binfmt_misc: ->s_root is not going anywhere
  drop redundant ->owner initializations
  ufs: get rid of redundant checks
  orangefs: constify inode_operations
  missed comment updates from ->direct_IO() prototype change
  file_inode(f)->i_mapping is f->f_mapping
  trim fsnotify hooks a bit
  9p: new helper - v9fs_parent_fid()
  debugfs: ->d_parent is never NULL or negative
  ...
2016-07-28 12:59:05 -07:00
Al Viro
00699ad857 Use the right predicate in ->atomic_open() instances
->atomic_open() can be given an in-lookup dentry *or* a negative one
found in dcache.  Use d_in_lookup() to tell one from another, rather
than d_unhashed().

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2016-07-05 16:02:23 -04:00
Al Viro
77d5a6b7d9 9p: new helper - v9fs_parent_fid()
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2016-05-29 16:22:09 -04:00
Al Viro
fc64005c93 don't bother with ->d_inode->i_sb - it's always equal to ->d_sb
... and neither can ever be NULL

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2016-04-10 17:11:51 -04:00
Linus Torvalds
33caf82acf Merge branch 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull misc vfs updates from Al Viro:
 "All kinds of stuff.  That probably should've been 5 or 6 separate
  branches, but by the time I'd realized how large and mixed that bag
  had become it had been too close to -final to play with rebasing.

  Some fs/namei.c cleanups there, memdup_user_nul() introduction and
  switching open-coded instances, burying long-dead code, whack-a-mole
  of various kinds, several new helpers for ->llseek(), assorted
  cleanups and fixes from various people, etc.

  One piece probably deserves special mention - Neil's
  lookup_one_len_unlocked().  Similar to lookup_one_len(), but gets
  called without ->i_mutex and tries to avoid ever taking it.  That, of
  course, means that it's not useful for any directory modifications,
  but things like getting inode attributes in nfds readdirplus are fine
  with that.  I really should've asked for moratorium on lookup-related
  changes this cycle, but since I hadn't done that early enough...  I
  *am* asking for that for the coming cycle, though - I'm going to try
  and get conversion of i_mutex to rwsem with ->lookup() done under lock
  taken shared.

  There will be a patch closer to the end of the window, along the lines
  of the one Linus had posted last May - mechanical conversion of
  ->i_mutex accesses to inode_lock()/inode_unlock()/inode_trylock()/
  inode_is_locked()/inode_lock_nested().  To quote Linus back then:

    -----
    |    This is an automated patch using
    |
    |        sed 's/mutex_lock(&\(.*\)->i_mutex)/inode_lock(\1)/'
    |        sed 's/mutex_unlock(&\(.*\)->i_mutex)/inode_unlock(\1)/'
    |        sed 's/mutex_lock_nested(&\(.*\)->i_mutex,[     ]*I_MUTEX_\([A-Z0-9_]*\))/inode_lock_nested(\1, I_MUTEX_\2)/'
    |        sed 's/mutex_is_locked(&\(.*\)->i_mutex)/inode_is_locked(\1)/'
    |        sed 's/mutex_trylock(&\(.*\)->i_mutex)/inode_trylock(\1)/'
    |
    |    with a very few manual fixups
    -----

  I'm going to send that once the ->i_mutex-affecting stuff in -next
  gets mostly merged (or when Linus says he's about to stop taking
  merges)"

* 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (63 commits)
  nfsd: don't hold i_mutex over userspace upcalls
  fs:affs:Replace time_t with time64_t
  fs/9p: use fscache mutex rather than spinlock
  proc: add a reschedule point in proc_readfd_common()
  logfs: constify logfs_block_ops structures
  fcntl: allow to set O_DIRECT flag on pipe
  fs: __generic_file_splice_read retry lookup on AOP_TRUNCATED_PAGE
  fs: xattr: Use kvfree()
  [s390] page_to_phys() always returns a multiple of PAGE_SIZE
  nbd: use ->compat_ioctl()
  fs: use block_device name vsprintf helper
  lib/vsprintf: add %*pg format specifier
  fs: use gendisk->disk_name where possible
  poll: plug an unused argument to do_poll
  amdkfd: don't open-code memdup_user()
  cdrom: don't open-code memdup_user()
  rsxx: don't open-code memdup_user()
  mtip32xx: don't open-code memdup_user()
  [um] mconsole: don't open-code memdup_user_nul()
  [um] hostaudio: don't open-code memdup_user()
  ...
2016-01-12 17:11:47 -08:00
Linus Torvalds
32fb378437 Merge branch 'work.symlinks' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull vfs RCU symlink updates from Al Viro:
 "Replacement of ->follow_link/->put_link, allowing to stay in RCU mode
  even if the symlink is not an embedded one.

  No changes since the mailbomb on Jan 1"

* 'work.symlinks' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
  switch ->get_link() to delayed_call, kill ->put_link()
  kill free_page_put_link()
  teach nfs_get_link() to work in RCU mode
  teach proc_self_get_link()/proc_thread_self_get_link() to work in RCU mode
  teach shmem_get_link() to work in RCU mode
  teach page_get_link() to work in RCU mode
  replace ->follow_link() with new method that could stay in RCU mode
  don't put symlink bodies in pagecache into highmem
  namei: page_getlink() and page_follow_link_light() are the same thing
  ufs: get rid of ->setattr() for symlinks
  udf: don't duplicate page_symlink_inode_operations
  logfs: don't duplicate page_symlink_inode_operations
  switch befs long symlinks to page_symlink_operations
2016-01-11 13:13:23 -08:00
Sasha Levin
8f5fed1e91 fs/9p: use fscache mutex rather than spinlock
We may sleep inside a the lock, so use a mutex rather than spinlock.

Signed-off-by: Sasha Levin <sasha.levin@oracle.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2016-01-09 02:57:21 -05:00
Al Viro
fceef393a5 switch ->get_link() to delayed_call, kill ->put_link()
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2015-12-30 13:01:03 -05:00
Al Viro
6b2553918d replace ->follow_link() with new method that could stay in RCU mode
new method: ->get_link(); replacement of ->follow_link().  The differences
are:
	* inode and dentry are passed separately
	* might be called both in RCU and non-RCU mode;
the former is indicated by passing it a NULL dentry.
	* when called that way it isn't allowed to block
and should return ERR_PTR(-ECHILD) if it needs to be called
in non-RCU mode.

It's a flagday change - the old method is gone, all in-tree instances
converted.  Conversion isn't hard; said that, so far very few instances
do not immediately bail out when called in RCU mode.  That'll change
in the next commits.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2015-12-08 22:41:54 -05:00
Al Viro
4ad7862844 9p: ->evict_inode() should kick out ->i_data, not ->i_mapping
For block devices the pagecache is associated with the inode
on bdevfs, not with the aliasing ones on the mountable filesystems.
The latter have its own ->i_data empty and ->i_mapping pointing
to the (unique per major/minor) bdevfs inode.  That guarantees
cache coherence between all block device inodes with the same
device number.

Eviction of an alias inode has no business trying to evict the
pages belonging to bdevfs one; moreover, ->i_mapping is only
safe to access when the thing is opened.  At the time of
->evict_inode() the victim is definitely *not* opened.  We are
about to kill the address space embedded into struct inode
(inode->i_data) and that's what we need to empty of any pages.

9p instance tries to empty inode->i_mapping instead, which is
both unsafe and bogus - if we have several device nodes with
the same device number in different places, closing one of them
should not try to empty the (shared) page cache.

Fortunately, other instances in the tree are OK; they are
evicting from &inode->i_data instead, as 9p one should.

Cc: stable@vger.kernel.org # v2.6.32+, ones prior to 2.6.36 need only half of that
Reported-by: "Suzuki K. Poulose" <Suzuki.Poulose@arm.com>
Tested-by: "Suzuki K. Poulose" <Suzuki.Poulose@arm.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2015-12-08 14:51:16 -05:00
Yaowei Bai
349c7037b1 fs/9p: remove unnecessary new_valid_dev() checks
new_valid_dev() always returns 1, so the !new_valid_dev() check is not
needed.  Remove it.

Signed-off-by: Yaowei Bai <bywxiaobai@163.com>
Cc: Alexander Viro <viro@zeniv.linux.org.uk>
Cc: Eric Van Hensbergen <ericvh@gmail.com>
Cc: Ron Minnich <rminnich@sandia.gov>
Cc: Latchesar Ionkov <lucho@ionkov.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2015-11-09 15:11:24 -08:00
Al Viro
0a73d0a204 9p: don't leave a half-initialized inode sitting around
Cc: stable@vger.kernel.org # all branches
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2015-07-12 11:22:05 -04:00
Al Viro
89076bc319 get rid of assorted nameidata-related debris
pointless forward declarations, stale comments

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2015-05-15 01:10:37 -04:00
Al Viro
6e77137b36 don't pass nameidata to ->follow_link()
its only use is getting passed to nd_jump_link(), which can obtain
it from current->nameidata

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2015-05-10 22:20:15 -04:00
Al Viro
680baacbca new ->follow_link() and ->put_link() calling conventions
a) instead of storing the symlink body (via nd_set_link()) and returning
an opaque pointer later passed to ->put_link(), ->follow_link() _stores_
that opaque pointer (into void * passed by address by caller) and returns
the symlink body.  Returning ERR_PTR() on error, NULL on jump (procfs magic
symlinks) and pointer to symlink body for normal symlinks.  Stored pointer
is ignored in all cases except the last one.

Storing NULL for opaque pointer (or not storing it at all) means no call
of ->put_link().

b) the body used to be passed to ->put_link() implicitly (via nameidata).
Now only the opaque pointer is.  In the cases when we used the symlink body
to free stuff, ->follow_link() now should store it as opaque pointer in addition
to returning it.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2015-05-10 22:19:45 -04:00
Al Viro
90e4fc8890 9p: don't bother with __getname() in ->follow_link()
We copy there a kmalloc'ed string and proceed to kfree that string immediately
after that.  Easier to just feed that string to nd_set_link() and _not_
kfree it until ->put_link() (which becomes kfree_put_link() in that case).

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2015-05-10 22:18:19 -04:00
Al Viro
b46c267e47 9p: don't bother with 4K allocation for 24-byte local array...
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2015-05-10 22:18:18 -04:00
David Howells
2b0143b5c9 VFS: normal filesystems (and lustre): d_inode() annotations
that's the bulk of filesystem drivers dealing with inodes of their own

Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2015-04-15 15:06:57 -04:00
David Howells
e36cb0b89c VFS: (Scripted) Convert S_ISLNK/DIR/REG(dentry->d_inode) to d_is_*(dentry)
Convert the following where appropriate:

 (1) S_ISLNK(dentry->d_inode) to d_is_symlink(dentry).

 (2) S_ISREG(dentry->d_inode) to d_is_reg(dentry).

 (3) S_ISDIR(dentry->d_inode) to d_is_dir(dentry).  This is actually more
     complicated than it appears as some calls should be converted to
     d_can_lookup() instead.  The difference is whether the directory in
     question is a real dir with a ->lookup op or whether it's a fake dir with
     a ->d_automount op.

In some circumstances, we can subsume checks for dentry->d_inode not being
NULL into this, provided we the code isn't in a filesystem that expects
d_inode to be NULL if the dirent really *is* negative (ie. if we're going to
use d_inode() rather than d_backing_inode() to get the inode pointer).

Note that the dentry type field may be set to something other than
DCACHE_MISS_TYPE when d_inode is NULL in the case of unionmount, where the VFS
manages the fall-through from a negative dentry to a lower layer.  In such a
case, the dentry type of the negative union dentry is set to the same as the
type of the lower dentry.

However, if you know d_inode is not NULL at the call site, then you can use
the d_is_xxx() functions even in a filesystem.

There is one further complication: a 0,0 chardev dentry may be labelled
DCACHE_WHITEOUT_TYPE rather than DCACHE_SPECIAL_TYPE.  Strictly, this was
intended for special directory entry types that don't have attached inodes.

The following perl+coccinelle script was used:

use strict;

my @callers;
open($fd, 'git grep -l \'S_IS[A-Z].*->d_inode\' |') ||
    die "Can't grep for S_ISDIR and co. callers";
@callers = <$fd>;
close($fd);
unless (@callers) {
    print "No matches\n";
    exit(0);
}

my @cocci = (
    '@@',
    'expression E;',
    '@@',
    '',
    '- S_ISLNK(E->d_inode->i_mode)',
    '+ d_is_symlink(E)',
    '',
    '@@',
    'expression E;',
    '@@',
    '',
    '- S_ISDIR(E->d_inode->i_mode)',
    '+ d_is_dir(E)',
    '',
    '@@',
    'expression E;',
    '@@',
    '',
    '- S_ISREG(E->d_inode->i_mode)',
    '+ d_is_reg(E)' );

my $coccifile = "tmp.sp.cocci";
open($fd, ">$coccifile") || die $coccifile;
print($fd "$_\n") || die $coccifile foreach (@cocci);
close($fd);

foreach my $file (@callers) {
    chomp $file;
    print "Processing ", $file, "\n";
    system("spatch", "--sp-file", $coccifile, $file, "--in-place", "--no-show-diff") == 0 ||
	die "spatch failed";
}

[AV: overlayfs parts skipped]

Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2015-02-22 11:38:41 -05:00
Al Viro
41d28bca2d switch d_materialise_unique() users to d_splice_alias()
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2014-11-19 13:01:20 -05:00
Al Viro
4b8e992392 9p: switch to %p[dD]
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2014-10-09 02:39:04 -04:00
Linus Torvalds
963649d735 9p fixes for the 3.16 merge window
Two bug fixes, one in xattr error path and the other in parsing
 major/minor numbers from devices.
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Merge tag 'for-linus-3.16-merge-window' of git://git.kernel.org/pub/scm/linux/kernel/git/ericvh/v9fs

Pull 9p fixes from Eric Van Hensbergen:
 "Two bug fixes, one in xattr error path and the other in parsing
  major/minor numbers from devices"

* tag 'for-linus-3.16-merge-window' of git://git.kernel.org/pub/scm/linux/kernel/git/ericvh/v9fs:
  9P: fix return value in v9fs_fid_xattr_set
  fs/9p: adjust sscanf parameters accordingly to the variable types
2014-06-08 14:35:19 -07:00
Fabian Frederick
fd2916bd77 fs/9p: kerneldoc fixes
Function parameters comment fixing.

Signed-off-by: Fabian Frederick <fabf@skynet.be>
Cc: Eric Van Hensbergen <ericvh@gmail.com>
Cc: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-06-04 16:53:55 -07:00
Toralf Förster
afe604d01f fs/9p: adjust sscanf parameters accordingly to the variable types
Signed-off-by: Toralf Förster <toralf.foerster@gmx.de>
Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>
2014-06-01 15:29:43 -05:00
Johannes Weiner
91b0abe36a mm + fs: store shadow entries in page cache
Reclaim will be leaving shadow entries in the page cache radix tree upon
evicting the real page.  As those pages are found from the LRU, an
iput() can lead to the inode being freed concurrently.  At this point,
reclaim must no longer install shadow pages because the inode freeing
code needs to ensure the page tree is really empty.

Add an address_space flag, AS_EXITING, that the inode freeing code sets
under the tree lock before doing the final truncate.  Reclaim will check
for this flag before installing shadow pages.

Signed-off-by: Johannes Weiner <hannes@cmpxchg.org>
Reviewed-by: Rik van Riel <riel@redhat.com>
Reviewed-by: Minchan Kim <minchan@kernel.org>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: Bob Liu <bob.liu@oracle.com>
Cc: Christoph Hellwig <hch@infradead.org>
Cc: Dave Chinner <david@fromorbit.com>
Cc: Greg Thelen <gthelen@google.com>
Cc: Hugh Dickins <hughd@google.com>
Cc: Jan Kara <jack@suse.cz>
Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Cc: Luigi Semenzato <semenzato@google.com>
Cc: Mel Gorman <mgorman@suse.de>
Cc: Metin Doslu <metin@citusdata.com>
Cc: Michel Lespinasse <walken@google.com>
Cc: Ozgun Erdogan <ozgun@citusdata.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Roman Gushchin <klamm@yandex-team.ru>
Cc: Ryan Mallon <rmallon@gmail.com>
Cc: Tejun Heo <tj@kernel.org>
Cc: Vlastimil Babka <vbabka@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-04-03 16:21:01 -07:00
Dominique Martinet
fb89b45cdf 9P: introduction of a new cache=mmap model.
- Add cache=mmap option
 - Make mmap read-write while keeping it as synchronous as possible
 - Build writeback fid on mmap creation if it is writable

Signed-off-by: Dominique Martinet <dominique.martinet@cea.fr>
Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>
2014-01-10 09:20:51 -06:00
Geyslan G. Bem
fae7469609 9p: remove useless assignment
There is no use of pointer 'fid' before the next assignment.

Signed-off-by: Geyslan G. Bem <geyslan@gmail.com>
Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>
2013-11-23 16:10:31 -06:00
Geyslan G. Bem
08e15f2df3 9p: remove unused 'super_block' struct pointer
Get rid of the useless '*sb' variable.

Signed-off-by: Geyslan G. Bem <geyslan@gmail.com>
Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>
2013-11-23 16:10:31 -06:00
Al Viro
ceaec15d49 9p: make v9fs_cache_inode_{get,put,set}_cookie empty inlines for !9P_CACHEFS
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2013-10-24 23:34:47 -04:00