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1488 Commits

Author SHA1 Message Date
Zhen Kong
ee7bdc62fd FBE: Add support for hardware based FBE on f2fs and adapt ext4 fs 
This is a snapshot of the crypto drivers as of msm-4.14 commit
367c46b1 (Enable hardware based FBE on f2fs and adapt ext4 fs).

Change-Id: Ifb52ed101d6e971c5823037f7895049b830c78c5
Signed-off-by: Zhen Kong <zkong@codeaurora.org>
 2019-03-15 17:23:07 -07:00
Blagovest Kolenichev
7fe1c1db80 Merge LTS tag v4.19.2 into msm-kona 
* refs/heads/tmp-7950eb3:
  Revert "scsi: ufs: Schedule clk gating work on correct queue"
  Linux 4.19.2
  MD: fix invalid stored role for a disk - try2
  vga_switcheroo: Fix missing gpu_bound call at audio client registration
  bpf: wait for running BPF programs when updating map-in-map
  userns: also map extents in the reverse map to kernel IDs
  vt: fix broken display when running aptitude
  net: sched: Remove TCA_OPTIONS from policy
  Btrfs: fix use-after-free when dumping free space
  Btrfs: fix use-after-free during inode eviction
  btrfs: move the dio_sem higher up the callchain
  btrfs: don't run delayed_iputs in commit
  btrfs: fix insert_reserved error handling
  btrfs: only free reserved extent if we didn't insert it
  btrfs: don't use ctl->free_space for max_extent_size
  btrfs: set max_extent_size properly
  btrfs: reset max_extent_size properly
  Btrfs: fix deadlock when writing out free space caches
  Btrfs: fix assertion on fsync of regular file when using no-holes feature
  Btrfs: fix null pointer dereference on compressed write path error
  btrfs: qgroup: Dirty all qgroups before rescan
  Btrfs: fix wrong dentries after fsync of file that got its parent replaced
  Btrfs: fix warning when replaying log after fsync of a tmpfile
  btrfs: make sure we create all new block groups
  btrfs: reset max_extent_size on clear in a bitmap
  btrfs: protect space cache inode alloc with GFP_NOFS
  btrfs: release metadata before running delayed refs
  Btrfs: don't clean dirty pages during buffered writes
  btrfs: wait on caching when putting the bg cache
  btrfs: keep trim from interfering with transaction commits
  btrfs: don't attempt to trim devices that don't support it
  btrfs: iterate all devices during trim, instead of fs_devices::alloc_list
  btrfs: Ensure btrfs_trim_fs can trim the whole filesystem
  btrfs: Enhance btrfs_trim_fs function to handle error better
  btrfs: fix error handling in btrfs_dev_replace_start
  btrfs: fix error handling in free_log_tree
  btrfs: locking: Add extra check in btrfs_init_new_buffer() to avoid deadlock
  btrfs: Handle owner mismatch gracefully when walking up tree
  btrfs: qgroup: Avoid calling qgroup functions if qgroup is not enabled
  tracing: Return -ENOENT if there is no target synthetic event
  selftests/powerpc: Fix ptrace tm failure
  selftests/ftrace: Fix synthetic event test to delete event correctly
  soc/tegra: pmc: Fix child-node lookup
  soc: qcom: rmtfs-mem: Validate that scm is available
  arm64: dts: stratix10: Correct System Manager register size
  ARM: dts: socfpga: Fix SDRAM node address for Arria10
  Cramfs: fix abad comparison when wrap-arounds occur
  rpmsg: smd: fix memory leak on channel create
  arm64: lse: remove -fcall-used-x0 flag
  media: hdmi.h: rename ADOBE_RGB to OPRGB and ADOBE_YCC to OPYCC
  media: replace ADOBERGB by OPRGB
  media: media colorspaces*.rst: rename AdobeRGB to opRGB
  drm/mediatek: fix OF sibling-node lookup
  media: adv7842: when the EDID is cleared, unconfigure CEC as well
  media: adv7604: when the EDID is cleared, unconfigure CEC as well
  media: em28xx: fix handler for vidioc_s_input()
  media: em28xx: make v4l2-compliance happier by starting sequence on zero
  media: em28xx: fix input name for Terratec AV 350
  media: tvp5150: avoid going past array on v4l2_querymenu()
  media: em28xx: use a default format if TRY_FMT fails
  media: cec: forgot to cancel delayed work
  media: cec: fix the Signal Free Time calculation
  media: cec: add new tx/rx status bits to detect aborts/timeouts
  xen-blkfront: fix kernel panic with negotiate_mq error path
  xen: remove size limit of privcmd-buf mapping interface
  xen: fix xen_qlock_wait()
  media: cec: integrate cec_validate_phys_addr() in cec-api.c
  media: cec: make cec_get_edid_spa_location() an inline function
  remoteproc: qcom: q6v5: Propagate EPROBE_DEFER
  kgdboc: Passing ekgdboc to command line causes panic
  Revert "media: dvbsky: use just one mutex for serializing device R/W ops"
  media: v4l2-tpg: fix kernel oops when enabling HFLIP and OSD
  net: bcmgenet: fix OF child-node lookup
  TC: Set DMA masks for devices
  iommu/arm-smmu: Ensure that page-table updates are visible before TLBI
  ocxl: Fix access to the AFU Descriptor Data
  power: supply: twl4030-charger: fix OF sibling-node lookup
  rtc: cmos: Remove the `use_acpi_alarm' module parameter for !ACPI
  rtc: cmos: Fix non-ACPI undefined reference to `hpet_rtc_interrupt'
  rtc: ds1307: fix ds1339 wakealarm support
  MIPS: OCTEON: fix out of bounds array access on CN68XX
  powerpc/64s/hash: Do not use PPC_INVALIDATE_ERAT on CPUs before POWER9
  powerpc/tm: Fix HFSCR bit for no suspend case
  powerpc/msi: Fix compile error on mpc83xx
  powerpc64/module elfv1: Set opd addresses after module relocation
  fsnotify: Fix busy inodes during unmount
  media: ov7670: make "xclk" clock optional
  dm zoned: fix various dmz_get_mblock() issues
  dm zoned: fix metadata block ref counting
  dm ioctl: harden copy_params()'s copy_from_user() from malicious users
  lockd: fix access beyond unterminated strings in prints
  nfsd: Fix an Oops in free_session()
  nfsd: correctly decrement odstate refcount in error path
  nfs: Fix a missed page unlock after pg_doio()
  NFSv4.1: Fix the r/wsize checking
  NFC: nfcmrvl_uart: fix OF child-node lookup
  tpm: fix response size validation in tpm_get_random()
  genirq: Fix race on spurious interrupt detection
  printk: Fix panic caused by passing log_buf_len to command line
  smb3: on kerberos mount if server doesn't specify auth type use krb5
  smb3: do not attempt cifs operation in smb3 query info error path
  smb3: allow stats which track session and share reconnects to be reset
  w1: omap-hdq: fix missing bus unregister at removal
  iio: adc: at91: fix wrong channel number in triggered buffer mode
  iio: adc: at91: fix acking DRDY irq on simple conversions
  iio: adc: imx25-gcq: Fix leak of device_node in mx25_gcq_setup_cfgs()
  iio: ad5064: Fix regulator handling
  kbuild: fix kernel/bounds.c 'W=1' warning
  KVM: arm64: Fix caching of host MDCR_EL2 value
  KVM: arm/arm64: Ensure only THP is candidate for adjustment
  mm/hmm: fix race between hmm_mirror_unregister() and mmu_notifier callback
  mm/rmap: map_pte() was not handling private ZONE_DEVICE page properly
  hugetlbfs: dirty pages as they are added to pagecache
  ima: open a new file instance if no read permissions
  ima: fix showing large 'violations' or 'runtime_measurements_count'
  userfaultfd: disable irqs when taking the waitqueue lock
  mm: /proc/pid/smaps_rollup: fix NULL pointer deref in smaps_pte_range()
  crypto: speck - remove Speck
  crypto: aegis/generic - fix for big endian systems
  crypto: morus/generic - fix for big endian systems
  crypto: aesni - don't use GFP_ATOMIC allocation if the request doesn't cross a page in gcm
  crypto: tcrypt - fix ghash-generic speed test
  crypto: lrw - Fix out-of bounds access on counter overflow
  signal: Guard against negative signal numbers in copy_siginfo_from_user32
  signal/GenWQE: Fix sending of SIGKILL
  PCI: Add Device IDs for Intel GPU "spurious interrupt" quirk
  PCI/ASPM: Fix link_state teardown on device removal
  ARM: dts: dra7: Fix up unaligned access setting for PCIe EP
  EDAC, skx_edac: Fix logical channel intermediate decoding
  EDAC, {i7core,sb,skx}_edac: Fix uncorrected error counting
  EDAC, amd64: Add Family 17h, models 10h-2fh support
  HID: hiddev: fix potential Spectre v1
  HID: wacom: Work around HID descriptor bug in DTK-2451 and DTH-2452
  selinux: fix mounting of cgroup2 under older policies
  ext4: fix use-after-free race in ext4_remount()'s error path
  ext4: propagate error from dquot_initialize() in EXT4_IOC_FSSETXATTR
  ext4: fix setattr project check in fssetxattr ioctl
  ext4: initialize retries variable in ext4_da_write_inline_data_begin()
  ext4: fix EXT4_IOC_SWAP_BOOT
  gfs2_meta: ->mount() can get NULL dev_name
  jbd2: fix use after free in jbd2_log_do_checkpoint()
  IB/rxe: Revise the ib_wr_opcode enum
  IB/mlx5: Fix MR cache initialization
  ASoC: sta32x: set ->component pointer in private struct
  ASoC: intel: skylake: Add missing break in skl_tplg_get_token()
  libnvdimm, pmem: Fix badblocks population for 'raw' namespaces
  libnvdimm, region: Fail badblocks listing for inactive regions
  libnvdimm: Hold reference on parent while scheduling async init
  scsi: target: Fix target_wait_for_sess_cmds breakage with active signals
  scsi: sched/wait: Add wait_event_lock_irq_timeout for TASK_UNINTERRUPTIBLE usage
  dmaengine: ppc4xx: fix off-by-one build failure
  net/ipv4: defensive cipso option parsing
  iwlwifi: mvm: check return value of rs_rate_from_ucode_rate()
  mt76: mt76x2: fix multi-interface beacon configuration
  usb: gadget: udc: renesas_usb3: Fix b-device mode for "workaround"
  usb: typec: tcpm: Fix APDO PPS order checking to be based on voltage
  usbip:vudc: BUG kmalloc-2048 (Not tainted): Poison overwritten
  libertas: don't set URB_ZERO_PACKET on IN USB transfer
  xen/pvh: don't try to unplug emulated devices
  xen/pvh: increase early stack size
  xen: make xen_qlock_wait() nestable
  xen: fix race in xen_qlock_wait()
  xen/balloon: Support xend-based toolstack
  xen/blkfront: avoid NULL blkfront_info dereference on device removal
  tpm: Restore functionality to xen vtpm driver.
  xen-swiotlb: use actually allocated size on check physical continuous
  ARM: dts: exynos: Mark 1 GHz CPU OPP as suspend OPP on Exynos5250
  ARM: dts: exynos: Convert exynos5250.dtsi to opp-v2 bindings
  OPP: Free OPP table properly on performance state irregularities
  f2fs: fix to account IO correctly
  f2fs: fix to recover cold bit of inode block during POR
  f2fs: fix missing up_read
  Revert "f2fs: fix to clear PG_checked flag in set_page_dirty()"
  cpupower: Fix AMD Family 0x17 msr_pstate size
  ALSA: hda: Check the non-cached stream buffers more explicitly
  IB/rxe: fix for duplicate request processing and ack psns
  dmaengine: dma-jz4780: Return error if not probed from DT
  mfd: menelaus: Fix possible race condition and leak
  f2fs: fix to flush all dirty inodes recovered in readonly fs
  signal: Always deliver the kernel's SIGKILL and SIGSTOP to a pid namespace init
  f2fs: report error if quota off error during umount
  f2fs: avoid sleeping under spin_lock
  scsi: lpfc: Correct race with abort on completion path
  scsi: lpfc: Correct soft lockup when running mds diagnostics
  uio: ensure class is registered before devices
  IB/mlx5: Allow transition of DCI QP to reset
  IB/ipoib: Use dev_port to expose network interface port numbers
  firmware: coreboot: Unmap ioregion after device population
  ASoC: AMD: Fix capture unstable in beginning for some runs
  driver/dma/ioat: Call del_timer_sync() without holding prep_lock
  Smack: ptrace capability use fixes
  usb: chipidea: Prevent unbalanced IRQ disable
  crypto: caam - fix implicit casts in endianness helpers
  PCI: dwc: pci-dra7xx: Enable errata i870 for both EP and RC mode
  coresight: etb10: Fix handling of perf mode
  PCI/MSI: Warn and return error if driver enables MSI/MSI-X twice
  f2fs: fix to recover inode's i_flags during POR
  f2fs: fix to recover inode's crtime during POR
  scsi: qla2xxx: Fix recursive mailbox timeout
  xhci: Avoid USB autosuspend when resuming USB2 ports.
  nvmem: check the return value of nvmem_add_cells()
  PCI: cadence: Correct probe behaviour when failing to get PHY
  MD: fix invalid stored role for a disk
  ext4: fix argument checking in EXT4_IOC_MOVE_EXT
  usb: gadget: udc: atmel: handle at91sam9rl PMC
  usb: dwc2: fix a race with external vbus supply
  usb: dwc2: fix call to vbus supply exit routine, call it unlocked
  irqchip/pdc: Setup all edge interrupts as rising edge at GIC
  xprtrdma: Reset credit grant properly after a disconnect
  PCI / ACPI: Enable wake automatically for power managed bridges
  VMCI: Resource wildcard match fixed
  Drivers: hv: vmbus: Use cpumask_var_t for on-stack cpu mask
  f2fs: clear PageError on the read path
  tpm: suppress transmit cmd error logs when TPM 1.2 is disabled/deactivated
  usb: typec: tcpm: Report back negotiated PPS voltage and current
  PCI: cadence: Use AXI region 0 to signal interrupts from EP
  PCI: mediatek: Fix mtk_pcie_find_port() endpoint/port matching logic
  usb: host: ohci-at91: fix request of irq for optional gpio
  RDMA/bnxt_re: Fix recursive lock warning in debug kernel
  RDMA/bnxt_re: Avoid accessing nq->bar_reg_iomem in failure case
  IB/ipoib: Clear IPCB before icmp_send
  RDMA/cm: Respect returned status of cm_init_av_by_path
  RDMA/core: Do not expose unsupported counters
  scsi: megaraid_sas: fix a missing-check bug
  KVM: nVMX: Clear reserved bits of #DB exit qualification
  UAPI: ndctl: Fix g++-unsupported initialisation in headers
  scsi: ufs: Schedule clk gating work on correct queue
  scsi: esp_scsi: Track residual for PIO transfers
  of: Add missing exports of node name compare functions
  md: fix memleak for mempool
  MD: Memory leak when flush bio size is zero
  f2fs: fix to account IO correctly for cgroup writeback
  net: stmmac: dwmac-sun8i: fix OF child-node lookup
  cgroup, netclassid: add a preemption point to write_classid
  cifs: fix a credits leak for compund commands
  thermal: da9062/61: Prevent hardware access during system suspend
  thermal: rcar_thermal: Prevent doing work after unbind
  libata: Apply NOLPM quirk for SAMSUNG MZ7TD256HAFV-000L9
  ath10k: schedule hardware restart if WMI command times out
  wil6210: fix RX buffers release and unmap
  ixgbevf: VF2VF TCP RSS
  ixgbe: disallow IPsec Tx offload when in SR-IOV mode
  gpio: brcmstb: allow 0 width GPIO banks
  iwlwifi: mvm: fix BAR seq ctrl reporting
  libertas_tf: prevent underflow in process_cmdrequest()
  rsi: fix memory alignment issue in ARM32 platforms
  mt76x2u: run device cleanup routine if resume fails
  net: dsa: mv88e6xxx: Fix writing to a PHY page.
  net: hns3: Fix for vf vlan delete failed problem
  net: hns3: Fix ping exited problem when doing lp selftest
  net: hns3: Preserve vlan 0 in hardware table
  pinctrl: ssbi-gpio: Fix pm8xxx_pin_config_get() to be compliant
  pinctrl: spmi-mpp: Fix pmic_mpp_config_get() to be compliant
  perf tests: Fix record+probe_libc_inet_pton.sh without ping's debuginfo
  failover: Add missing check to validate 'slave_dev' in net_failover_slave_unregister
  bpf/verifier: fix verifier instability
  pinctrl: qcom: spmi-mpp: Fix drive strength setting
  ACPI / LPSS: Add alternative ACPI HIDs for Cherry Trail DMA controllers
  spi: gpio: No MISO does not imply no RX
  kprobes: Return error if we fail to reuse kprobe instead of BUG_ON()
  arm64: entry: Allow handling of undefined instructions from EL1
  block, bfq: correctly charge and reset entity service in all cases
  net: phy: phylink: ensure the carrier is off when starting phylink
  net: hns3: Set STATE_DOWN bit of hdev state when stopping net
  net: hns3: Check hdev state when getting link status
  brcmfmac: fix for proper support of 160MHz bandwidth
  pinctrl: qcom: spmi-mpp: Fix err handling of pmic_mpp_set_mux
  pinctrl: sunxi: fix 'pctrl->functions' allocation in sunxi_pinctrl_build_state
  net: hns3: Fix ets validate issue
  net: hns3: Add nic state check before calling netif_tx_wake_queue
  x86: boot: Fix EFI stub alignment
  efi/x86: Call efi_parse_options() from efi_main()
  Bluetooth: hci_qca: Remove hdev dereference in qca_close().
  Bluetooth: btbcm: Add entry for BCM4335C0 UART bluetooth
  net: hns3: Fix for packet buffer setting bug
  ice: update fw version check logic
  ice: fix changing of ring descriptor size (ethtool -G)
  signal: Introduce COMPAT_SIGMINSTKSZ for use in compat_sys_sigaltstack
  ath10k: fix tx status flag setting for management frames
  nvme: call nvme_complete_rq when nvmf_check_ready fails for mpath I/O
  mtd: rawnand: atmel: Fix potential NULL pointer dereference
  x86/intel_rdt: Show missing resctrl mount options
  cpufreq: dt: Try freeing static OPPs only if we have added them
  ACPI / processor: Fix the return value of acpi_processor_ids_walk()
  ACPI / PM: LPIT: Register sysfs attributes based on FADT
  ACPI/PPTT: Handle architecturally unknown cache types
  wlcore: Fix BUG with clear completion on timeout
  x86/olpc: Indicate that legacy PC XO-1 platform should not register RTC
  iwlwifi: mvm: check for n_profiles validity in EWRD ACPI
  iwlwifi: mvm: clear HW_RESTART_REQUESTED when stopping the interface
  iwlwifi: pcie: avoid empty free RB queue
  mtd: rawnand: denali: set SPARE_AREA_SKIP_BYTES register to 8 if unset
  sdhci: acpi: add free_slot callback
  mmc: sdhci-pci-o2micro: Add quirk for O2 Micro dev 0x8620 rev 0x01
  bcache: Populate writeback_rate_minimum attribute
  cpupower: Fix coredump on VMWare
  perf strbuf: Match va_{add,copy} with va_end
  perf tools: Free 'printk' string in parse_ftrace_printk()
  perf tools: Cleanup trace-event-info 'tdata' leak
  perf tools: Free temporary 'sys' string in read_event_files()
  spi: spi-ep93xx: Use dma_data_direction for ep93xx_spi_dma_{finish,prepare}
  lightnvm: pblk: fix race condition on metadata I/O
  lightnvm: pblk: fix two sleep-in-atomic-context bugs
  lightnvm: pblk: fix race on sysfs line state
  hwmon: (pwm-fan) Set fan speed to 0 on suspend
  s390/sthyi: Fix machine name validity indication
  tun: Consistently configure generic netdev params via rtnetlink
  nfp: devlink port split support for 1x100G CXP NIC
  hv_netvsc: fix vf serial matching with pci slot info
  arm64: cpufeature: ctr: Fix cpu capability check for late CPUs
  swim: fix cleanup on setup error
  ataflop: fix error handling during setup
  netfilter: xt_nat: fix DNAT target for shifted portmap ranges
  locking/lockdep: Fix debug_locks off performance problem
  net: loopback: clear skb->tstamp before netif_rx()
  net: socionext: Reset tx queue in ndo_stop
  ARM: dts: exynos: Disable pull control for MAX8997 interrupts on Origen
  x86/numa_emulation: Fix uniform-split numa emulation
  x86/mm/pat: Disable preemption around __flush_tlb_all()
  x86/kvm/nVMX: allow bare VMXON state migration
  x86/corruption-check: Fix panic in memory_corruption_check() when boot option without value is provided
  x86/xen: Fix boot loader version reported for PVH guests
  x86/speculation: Enable cross-hyperthread spectre v2 STIBP mitigation
  ALSA: hda - Fix incorrect clearance of thinkpad_acpi hooks
  ALSA: ca0106: Disable IZD on SB0570 DAC to fix audio pops
  ALSA: hda: Add 2 more models to the power_save blacklist
  ALSA: hda - Add mic quirk for the Lenovo G50-30 (17aa:3905)
  ALSA: hda/realtek - Fix the problem of the front MIC on the Lenovo M715
  ALSA: hda - Fix headphone pin config for ASUS G751
  ALSA: hda - Add quirk for ASUS G751 laptop
  parisc: Fix exported address of os_hpmc handler
  parisc: Fix map_pages() to not overwrite existing pte entries
  parisc: Fix address in HPMC IVA
  mailbox: PCC: handle parse error
  ipmi: Fix timer race with module unload
  kprobes/x86: Use preempt_enable() in optimized_callback()
  acpi, nfit: Fix Address Range Scrub completion tracking
  ACPICA: AML Parser: fix parse loop to correctly skip erroneous extended opcodes
  ACPICA: AML interpreter: add region addresses in global list during initialization
  ACPI / OSL: Use 'jiffies' as the time bassis for acpi_os_get_timer()
  pcmcia: Implement CLKRUN protocol disabling for Ricoh bridges
  dma-mapping: fix panic caused by passing empty cma command line argument
  cpufreq: conservative: Take limits changes into account properly
  block: make sure writesame bio is aligned with logical block size
  block: make sure discard bio is aligned with logical block size
  block: setup bounce bio_sets properly
  jffs2: free jffs2_sb_info through jffs2_kill_sb()
  hwmon: (pmbus) Fix page count auto-detection.
  bcache: fix miss key refill->end in writeback
  bcache: correct dirty data statistics
  bcache: fix ioctl in flash device
  bcache: trace missed reading by cache_missed
  spi: bcm-qspi: fix calculation of address length
  spi: bcm-qspi: switch back to reading flash using smaller chunks
  spi: spi-mem: Adjust op len based on message/transfer size limitations
  mtd: spi-nor: fsl-quadspi: Don't let -EINVAL on the bus
  mtd: spi-nor: intel-spi: Add support for Intel Ice Lake SPI serial flash
  mtd: spi-nor: fsl-quadspi: fix read error for flash size larger than 16MB
  mtd: maps: gpio-addr-flash: Fix ioremapped size
  mtd: rawnand: marvell: fix the IRQ handler complete() condition
  gpio: mxs: Get rid of external API call
  MIPS: VDSO: Reduce VDSO_RANDOMIZE_SIZE to 64MB for 64bit
  bpf: fix partial copy of map_ptr when dst is scalar

Conflicts:
	drivers/iommu/arm-smmu.c

Change-Id: Iff6f46fb6932b2a41a7a3df5f2a18f1eddfb9d66
Signed-off-by: Blagovest Kolenichev <bkolenichev@codeaurora.org>
 2018-11-26 05:12:07 -08:00
Jan Kara
778af261c5 fsnotify: Fix busy inodes during unmount 
commit 721fb6fbfd2132164c2e8777cc837f9b2c1794dc upstream.

Detaching of mark connector from fsnotify_put_mark() can race with
unmounting of the filesystem like:

  CPU1				CPU2
fsnotify_put_mark()
  spin_lock(&conn->lock);
  ...
  inode = fsnotify_detach_connector_from_object(conn)
  spin_unlock(&conn->lock);
				generic_shutdown_super()
				  fsnotify_unmount_inodes()
				    sees connector detached for inode
				      -> nothing to do
				  evict_inode()
				    barfs on pending inode reference
  iput(inode);

Resulting in "Busy inodes after unmount" message and possible kernel
oops. Make fsnotify_unmount_inodes() properly wait for outstanding inode
references from detached connectors.

Note that the accounting of outstanding inode references in the
superblock can cause some cacheline contention on the counter. OTOH it
happens only during deletion of the last notification mark from an inode
(or during unlinking of watched inode) and that is not too bad. I have
measured time to create & delete inotify watch 100000 times from 64
processes in parallel (each process having its own inotify group and its
own file on a shared superblock) on a 64 CPU machine. Average and
standard deviation of 15 runs look like:

	Avg		Stddev
Vanilla	9.817400	0.276165
Fixed	9.710467	0.228294

So there's no statistically significant difference.

Fixes: 6b3f05d24d ("fsnotify: Detach mark from object list when last reference is dropped")
CC: stable@vger.kernel.org
Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 2018-11-13 11:08:50 -08:00
Rishabh Bhatnagar
b3953ede2a Merge remote-tracking branch 'origin/tmp-35a7f35' into msm-kona 
* origin/tmp-35a7f35:
  Linux 4.19-rc8
  KVM: vmx: hyper-v: don't pass EPT configuration info to vmx_hv_remote_flush_tlb()
  ubifs: Fix WARN_ON logic in exit path
  fs/fat/fatent.c: add cond_resched() to fat_count_free_clusters()
  mm/thp: fix call to mmu_notifier in set_pmd_migration_entry() v2
  mm/mmap.c: don't clobber partially overlapping VMA with MAP_FIXED_NOREPLACE
  ocfs2: fix a GCC warning
  afs: Fix afs_server struct leak
  MAINTAINERS: use the correct location for dt-bindings includes for mux
  mux: adgs1408: use the correct MODULE_LICENSE
  gfs2: Fix iomap buffered write support for journaled files (2)
  arm64: perf: Reject stand-alone CHAIN events for PMUv3
  arm64: Fix /proc/iomem for reserved but not memory regions
  afs: Fix cell proc list
  lib/bch: fix possible stack overrun
  net: dsa: bcm_sf2: Call setup during switch resume
  net: dsa: bcm_sf2: Fix unbind ordering
  vmlinux.lds.h: Fix linker warnings about orphan .LPBX sections
  vmlinux.lds.h: Fix incomplete .text.exit discards
  i2c: Fix kerneldoc for renamed i2c dma put function
  blk-wbt: wake up all when we scale up, not down
  net: phy: sfp: remove sfp_mutex's definition
  r8169: set RX_MULTI_EN bit in RxConfig for 8168F-family chips
  net: socionext: clear rx irq correctly
  net/mlx4_core: Fix warnings during boot on driverinit param set failures
  tipc: eliminate possible recursive locking detected by LOCKDEP
  selftests: udpgso_bench.sh explicitly requires bash
  selftests: rtnetlink.sh explicitly requires bash.
  qmi_wwan: Added support for Gemalto's Cinterion ALASxx WWAN interface
  tipc: queue socket protocol error messages into socket receive buffer
  tipc: set link tolerance correctly in broadcast link
  net: ipv4: don't let PMTU updates increase route MTU
  net: ipv4: update fnhe_pmtu when first hop's MTU changes
  net/ipv6: stop leaking percpu memory in fib6 info
  rds: RDS (tcp) hangs on sendto() to unresponding address
  dm linear: fix linear_end_io conditional definition
  IB/mlx5: Unmap DMA addr from HCA before IOMMU
  net: make skb_partial_csum_set() more robust against overflows
  devlink: Add helper function for safely copy string param
  devlink: Fix param cmode driverinit for string type
  devlink: Fix param set handling for string type
  samples: disable CONFIG_SAMPLES for UML
  dm linear: eliminate linear_end_io call if CONFIG_DM_ZONED disabled
  pinctrl: mcp23s08: fix irq and irqchip setup order
  gpio: Assign gpio_irq_chip::parents to non-stack pointer
  libertas: call into generic suspend code before turning off power
  of: unittest: Disable interrupt node tests for old world MAC systems
  mfd: cros-ec: copy the whole event in get_next_event_xfer
  mm: Preserve _PAGE_DEVMAP across mprotect() calls
  dm: fix report zone remapping to account for partition offset
  dm cache: destroy migration_cache if cache target registration failed
  net: ena: fix auto casting to boolean
  net: ena: fix NULL dereference due to untimely napi initialization
  net: ena: fix rare bug when failed restart/resume is followed by driver removal
  net: ena: fix warning in rmmod caused by double iounmap
  KVM: x86: support CONFIG_KVM_AMD=y with CONFIG_CRYPTO_DEV_CCP_DD=m
  gfs2: Fix iomap buffered write support for journaled files
  ARM: KVM: Correctly order SGI register entries in the cp15 array
  mmc: block: avoid multiblock reads for the last sector in SPI mode
  x86/mm: Avoid VLA in pgd_alloc()
  mm, sched/numa: Remove remaining traces of NUMA rate-limiting
  x86/intel_rdt: Fix out-of-bounds memory access in CBM tests
  rxrpc: Fix the packet reception routine
  rxrpc: Fix the rxrpc_tx_packet trace line
  rxrpc: Fix connection-level abort handling
  rxrpc: Only take the rwind and mtu values from latest ACK
  filesystem-dax: Fix dax_layout_busy_page() livelock
  rxrpc: Carry call state out of locked section in rxrpc_rotate_tx_window()
  rxrpc: Don't check RXRPC_CALL_TX_LAST after calling rxrpc_rotate_tx_window()
  rxrpc: Don't need to take the RCU read lock in the packet receiver
  rxrpc: Use the UDP encap_rcv hook
  sparc64: fix fall-through annotation
  sparc32: fix fall-through annotation
  sparc: vdso: clean-up vdso Makefile
  oradax: remove redundant null check before kfree
  sparc64: viohs: Remove VLA usage
  sbus: Use of_get_child_by_name helper
  sparc: Convert to using %pOFn instead of device_node.name
  mach64: detect the dot clock divider correctly on sparc
  net/smc: retain old name for diag_mode field
  net/smc: use __aligned_u64 for 64-bit smc_diag fields
  net: sched: cls_u32: fix hnode refcounting
  udp: Unbreak modules that rely on external __skb_recv_udp() availability
  percpu: stop leaking bitmap metadata blocks
  Linux 4.19-rc7
  xfs: fix data corruption w/ unaligned reflink ranges
  xfs: fix data corruption w/ unaligned dedupe ranges
  treewide: Replace more open-coded allocation size multiplications
  mm: madvise(MADV_DODUMP): allow hugetlbfs pages
  ocfs2: fix locking for res->tracking and dlm->tracking_list
  mm/vmscan.c: fix int overflow in callers of do_shrink_slab()
  mm/vmstat.c: skip NR_TLB_REMOTE_FLUSH* properly
  mm/vmstat.c: fix outdated vmstat_text
  proc: restrict kernel stack dumps to root
  mm/hugetlb: add mmap() encodings for 32MB and 512MB page sizes
  mm/migrate.c: split only transparent huge pages when allocation fails
  ipc/shm.c: use ERR_CAST() for shm_lock() error return
  mm/gup_benchmark: fix unsigned comparison to zero in __gup_benchmark_ioctl
  mm, thp: fix mlocking THP page with migration enabled
  ocfs2: fix crash in ocfs2_duplicate_clusters_by_page()
  hugetlb: take PMD sharing into account when flushing tlb/caches
  mm: migration: fix migration of huge PMD shared pages
  net: mvpp2: Extract the correct ethtype from the skb for tx csum offload
  ipv6: take rcu lock in rawv6_send_hdrinc()
  ARC: clone syscall to setp r25 as thread pointer
  net: sched: Add policy validation for tc attributes
  rtnetlink: fix rtnl_fdb_dump() for ndmsg header
  yam: fix a missing-check bug
  net: bpfilter: Fix type cast and pointer warnings
  net: cxgb3_main: fix a missing-check bug
  Input: uinput - add a schedule point in uinput_inject_events()
  Input: evdev - add a schedule point in evdev_write()
  bpf: 32-bit RSH verification must truncate input before the ALU op
  MIPS: memset: Fix CPU_DADDI_WORKAROUNDS `small_fixup' regression
  perf record: Use unmapped IP for inline callchain cursors
  vsprintf: Fix off-by-one bug in bstr_printf() processing dereferenced pointers
  perf python: Use -Wno-redundant-decls to build with PYTHON=python3
  rxrpc: Fix the data_ready handler
  rxrpc: Fix some missed refs to init_net
  powerpc/numa: Skip onlining a offline node in kdump path
  powerpc: Don't print kernel instructions in show_user_instructions()
  i2c: designware: Call i2c_dw_clk_rate() only when calculating timings
  xfs: update ctime and remove suid before cloning files
  xfs: zero posteof blocks when cloning above eof
  xfs: refactor clonerange preparation into a separate helper
  iommu/amd: Clear memory encryption mask from physical address
  net: phy: phylink: fix SFP interface autodetection
  be2net: don't flip hw_features when VXLANs are added/deleted
  drm/nouveau/drm/nouveau: Grab runtime PM ref in nv50_mstc_detect()
  net/packet: fix packet drop as of virtio gso
  net: dsa: b53: Keep CPU port as tagged in all VLANs
  openvswitch: load NAT helper
  bnxt_en: get the reduced max_irqs by the ones used by RDMA
  bnxt_en: free hwrm resources, if driver probe fails.
  bnxt_en: Fix enables field in HWRM_QUEUE_COS2BW_CFG request
  bnxt_en: Fix VNIC reservations on the PF.
  Input: mousedev - add a schedule point in mousedev_write()
  team: Forbid enslaving team device to itself
  net/usb: cancel pending work when unbinding smsc75xx
  cgroup: Fix dom_cgrp propagation when enabling threaded mode
  dm cache: fix resize crash if user doesn't reload cache table
  dm cache metadata: ignore hints array being too small during resize
  PM / core: Clear the direct_complete flag on errors
  mlxsw: spectrum: Delete RIF when VLAN device is removed
  mlxsw: pci: Derive event type from event queue number
  drm/amdkfd: Fix incorrect use of process->mm
  drm/amd/display: Signal hw_done() after waiting for flip_done()
  kvm: nVMX: fix entry with pending interrupt if APICv is enabled
  ovl: fix format of setxattr debug
  ovl: fix access beyond unterminated strings
  KVM: VMX: hide flexpriority from guest when disabled at the module level
  KVM: VMX: check for existence of secondary exec controls before accessing
  x86/vdso: Fix vDSO syscall fallback asm constraint regression
  ALSA: hda/realtek - Cannot adjust speaker's volume on Dell XPS 27 7760
  KVM: PPC: Book3S HV: Avoid crash from THP collapse during radix page fault
  ixgbe: check return value of napi_complete_done()
  sctp: fix fall-through annotation
  drm/i915: Handle incomplete Z_FINISH for compressed error states
  media: v4l: event: Prevent freeing event subscriptions while accessed
  locking/ww_mutex: Fix runtime warning in the WW mutex selftest
  x86/cpu/amd: Remove unnecessary parentheses
  x86/vdso: Only enable vDSO retpolines when enabled and supported
  r8169: always autoneg on resume
  ipv4: fix use-after-free in ip_cmsg_recv_dstaddr()
  net: qualcomm: rmnet: Fix incorrect allocation flag in receive path
  net: qualcomm: rmnet: Fix incorrect allocation flag in transmit
  net: qualcomm: rmnet: Skip processing loopback packets
  net: systemport: Fix wake-up interrupt race during resume
  smb3: fix lease break problem introduced by compounding
  cifs: only wake the thread for the very last PDU in a compound
  cifs: add a warning if we try to to dequeue a deleted mid
  smb2: fix missing files in root share directory listing
  rtnl: limit IFLA_NUM_TX_QUEUES and IFLA_NUM_RX_QUEUES to 4096
  bonding: fix warning message
  inet: make sure to grab rcu_read_lock before using ireq->ireq_opt
  Revert "serial: sh-sci: Allow for compressed SCIF address"
  Revert "serial: sh-sci: Remove SCIx_RZ_SCIFA_REGTYPE"
  Revert "serial: 8250_dw: Fix runtime PM handling"
  RISCV: Fix end PFN for low memory
  x86/tsc: Fix UV TSC initialization
  x86/platform/uv: Provide is_early_uv_system()
  nfp: avoid soft lockups under control message storm
  declance: Fix continuation with the adapter identification message
  net: fec: fix rare tx timeout
  thunderbolt: Initialize after IOMMUs
  thunderbolt: Do not handle ICM events after domain is stopped
  powerpc/lib: fix book3s/32 boot failure due to code patching
  bpf: don't accept cgroup local storage with zero value size
  drm/cma-helper: Fix crash in fbdev error path
  sched/numa: Migrate pages to local nodes quicker early in the lifetime of a task
  mm, sched/numa: Remove rate-limiting of automatic NUMA balancing migration
  MAINTAINERS: Remove dead path from LOCKING PRIMITIVES entry
  drm: fix use-after-free read in drm_mode_create_lease_ioctl()
  s390/cio: Fix how vfio-ccw checks pinned pages
  sched/numa: Avoid task migration for small NUMA improvement
  mm/migrate: Use spin_trylock() while resetting rate limit
  sched/numa: Limit the conditions where scan period is reset
  sched/numa: Reset scan rate whenever task moves across nodes
  sched/numa: Pass destination CPU as a parameter to migrate_task_rq
  sched/numa: Stop multiple tasks from moving to the CPU at the same time
  perf/x86/amd/uncore: Set ThreadMask and SliceMask for L3 Cache perf events
  perf/x86/intel/uncore: Fix PCI BDF address of M3UPI on SKX
  perf/ring_buffer: Prevent concurent ring buffer access
  perf/x86/intel/uncore: Use boot_cpu_data.phys_proc_id instead of hardcorded physical package ID 0
  perf/core: Fix perf_pmu_unregister() locking
  selftests/x86: Add clock_gettime() tests to test_vdso
  r8169: fix network stalls due to missing bit TXCFG_AUTO_FIFO
  x86/vdso: Fix asm constraints on vDSO syscall fallbacks
  tun: napi flags belong to tfile
  tun: initialize napi_mutex unconditionally
  tun: remove unused parameters
  bond: take rcu lock in netpoll_send_skb_on_dev
  rtnetlink: Fail dump if target netnsid is invalid
  Revert "openvswitch: Fix template leak in error cases."
  tipc: ignore STATE_MSG on wrong link session
  net: sched: act_ipt: check for underflow in __tcf_ipt_init()
  usb: xhci-mtk: resume USB3 roothub first
  xhci: Add missing CAS workaround for Intel Sunrise Point xHCI
  usb: cdc_acm: Do not leak URB buffers
  Input: i8042 - enable keyboard wakeups by default when s2idle is used
  Input: xpad - add support for Xbox1 PDP Camo series gamepad
  soc: fsl: qman_portals: defer probe after qman's probe
  lib/xz: Put CRC32_POLY_LE in xz_private.h
  tcp/dccp: fix lockdep issue when SYN is backlogged
  PCI: mvebu: Fix PCI I/O mapping creation sequence
  net/mlx5e: Set vlan masks for all offloaded TC rules
  net/mlx5: E-Switch, Fix out of bound access when setting vport rate
  net/mlx5e: Avoid unbounded peer devices when unpairing TC hairpin rules
  drm/i915: Avoid compiler warning for maybe unused gu_misc_iir
  drm/i915: Do not redefine the has_csr parameter.
  MAINTAINERS: MIPS/LOONGSON2 ARCHITECTURE - Use the normal wildcard style
  KVM: x86: fix L1TF's MMIO GFN calculation
  tools/kvm_stat: cut down decimal places in update interval dialog
  KVM: nVMX: Fix emulation of VM_ENTRY_LOAD_BNDCFGS
  KVM: x86: Do not use kvm_x86_ops->mpx_supported() directly
  KVM: nVMX: Do not expose MPX VMX controls when guest MPX disabled
  arm64: KVM: Sanitize PSTATE.M when being set from userspace
  arm64: KVM: Tighten guest core register access from userspace
  cfg80211: fix use-after-free in reg_process_hint()
  mac80211: fix setting IEEE80211_KEY_FLAG_RX_MGMT for AP mode keys
  cfg80211: fix wext-compat memory leak
  drm/exynos: Use selected dma_dev default iommu domain instead of a fake one
  i2c: i2c-scmi: fix for i2c_smbus_write_block_data
  xfs: fix error handling in xfs_bmap_extents_to_btree
  pstore/ram: Fix failure-path memory leak in ramoops_init
  firmware: Always initialize the fw_priv list object
  docs: fpga: document fpga manager flags
  fpga: bridge: fix obvious function documentation error
  tools: hv: fcopy: set 'error' in case an unknown operation was requested
  fpga: do not access region struct after fpga_region_unregister
  Drivers: hv: vmbus: Use get/put_cpu() in vmbus_connect()
  netlink: fix typo in nla_parse_nested() comment
  r8169: Disable clk during suspend / resume
  qlcnic: fix Tx descriptor corruption on 82xx devices
  tipc: fix failover problem
  smsc95xx: Check for Wake-on-LAN modes
  smsc75xx: Check for Wake-on-LAN modes
  r8152: Check for supported Wake-on-LAN Modes
  sr9800: Check for supported Wake-on-LAN modes
  lan78xx: Check for supported Wake-on-LAN modes
  ax88179_178a: Check for supported Wake-on-LAN modes
  asix: Check for supported Wake-on-LAN modes
  iomap: set page dirty after partial delalloc on mkwrite
  xfs: remove invalid log recovery first/last cycle check
  xfs: validate inode di_forkoff
  xfs: skip delalloc COW blocks in xfs_reflink_end_cow
  xfs: don't treat unknown di_flags2 as corruption in scrub
  xfs: remove duplicated include from alloc.c
  xfs: don't bring in extents in xfs_bmap_punch_delalloc_range
  xfs: fix transaction leak in xfs_reflink_allocate_cow()
  xfs: avoid lockdep false positives in xfs_trans_alloc
  xfs: refactor xfs_buf_log_item reference count handling
  xfs: clean up xfs_trans_brelse()
  xfs: don't unlock invalidated buf on aborted tx commit
  xfs: remove last of unnecessary xfs_defer_cancel() callers
  xfs: don't crash the vfs on a garbage inline symlink
  MAINTAINERS: Remove obsolete drivers/pci pattern from ACPI section
  MIPS: Fix CONFIG_CMDLINE handling
  MIPS: VDSO: Always map near top of user memory
  ibmvnic: remove ndo_poll_controller
  sfc-falcon: remove ndo_poll_controller
  sfc: remove ndo_poll_controller
  net: ena: remove ndo_poll_controller
  qlogic: netxen: remove ndo_poll_controller
  qlcnic: remove ndo_poll_controller
  virtio_net: remove ndo_poll_controller
  net: hns: remove ndo_poll_controller
  ehea: remove ndo_poll_controller
  hinic: remove ndo_poll_controller
  netpoll: do not test NAPI_STATE_SCHED in poll_one_napi()
  qed: Fix shmem structure inconsistency between driver and the mfw.
  Update maintainers for bnx2/bnx2x/qlge/qlcnic drivers.
  MAINTAINERS: change bridge maintainers
  s390: qeth: Fix potential array overrun in cmd/rc lookup
  s390: qeth_core_mpc: Use ARRAY_SIZE instead of reimplementing its function
  mmc: slot-gpio: Fix debounce time to use miliseconds again
  bpf: harden flags check in cgroup_storage_update_elem()
  netfilter: xt_socket: check sk before checking for netns.
  netfilter: avoid erronous array bounds warning
  netfilter: nft_set_rbtree: add missing rb_erase() in GC routine
  rxrpc: Fix error distribution
  rxrpc: Fix transport sockopts to get IPv4 errors on an IPv6 socket
  rxrpc: Make service call handling more robust
  rxrpc: Improve up-front incoming packet checking
  rxrpc: Emit BUSY packets when supposed to rather than ABORTs
  rxrpc: Fix RTT gathering
  rxrpc: Fix checks as to whether we should set up a new call
  scsi: qedi: Initialize the stats mutex lock
  crypto: qat - Fix KASAN stack-out-of-bounds bug in adf_probe()
  crypto: mxs-dcp - Fix wait logic on chan threads
  crypto: chelsio - Fix memory corruption in DMA Mapped buffers.
  PCI: Reprogram bridge prefetch registers on resume
  soc: fsl: qbman: add APIs to retrieve the probing status
  perf report: Don't try to map ip to invalid map
  rseq/selftests: fix parametrized test with -fpie
  iwlwifi: 1000: set the TFD queue size
  ieee802154: mcr20a: Replace magic number with constants
  s390/cio: Refactor alloc of ccw_io_region
  s390/cio: Convert ccw_io_region to pointer
  rxrpc: Remove dup code from rxrpc_find_connection_rcu()
  ieee802154: ca8210: remove redundant condition check before debugfs_remove
  nl80211: Fix possible Spectre-v1 for CQM RSSI thresholds
  net-tcp: /proc/sys/net/ipv4/tcp_probe_interval is a u32 not int
  bnxt_en: Fix TX timeout during netpoll.
  vxlan: fill ttl inherit info
  net: phy: sfp: Fix unregistering of HWMON SFP device
  qed: Avoid implicit enum conversion in qed_iwarp_parse_rx_pkt
  qed: Avoid constant logical operation warning in qed_vf_pf_acquire
  bonding: avoid possible dead-lock
  bonding: pass link-local packets to bonding master also.
  qed: Avoid implicit enum conversion in qed_roce_mode_to_flavor
  qed: Fix mask parameter in qed_vf_prep_tunn_req_tlv
  qed: Avoid implicit enum conversion in qed_set_tunn_cls_info
  wimax/i2400m: fix spelling mistake "not unitialized" -> "uninitialized"
  qed: fix spelling mistake "toogle" -> "toggle"
  net: phy: fix WoL handling when suspending the PHY
  net: core: add member wol_enabled to struct net_device
  Revert "net: phy: fix WoL handling when suspending the PHY"
  net: phy: fix WoL handling when suspending the PHY
  net/ipv6: Remove extra call to ip6_convert_metrics for multipath case
  mmc: core: Fix debounce time to use microseconds
  video/fbdev/stifb: Fix spelling mistake in fall-through annotation
  uvesafb: Fix URLs in the documentation
  efifb: BGRT: Add nobgrt option
  fbdev/omapfb: fix omapfb_memory_read infoleak
  pxa168fb: prepare the clock
  Bluetooth: SMP: fix crash in unpairing
  mac80211_hwsim: do not omit multicast announce of first added radio
  mac80211_hwsim: fix race in radio destruction from netlink notifier
  mac80211_hwsim: fix locking when iterating radios during ns exit
  nl80211: Fix possible Spectre-v1 for NL80211_TXRATE_HT
  cfg80211: fix reg_query_regdb_wmm kernel-doc
  mac80211: allocate TXQs for active monitor interfaces
  tipc: lock wakeup & inputq at tipc_link_reset()
  tipc: reset bearer if device carrier not ok
  ARM: dts: stm32: update SPI6 dmas property on stm32mp157c
  soc: fsl: qe: Fix copy/paste bug in ucc_get_tdm_sync_shift()
  soc: fsl: qbman: qman: avoid allocating from non existing gen_pool
  ovl: make symbol 'ovl_aops' static
  tipc: fix flow control accounting for implicit connect
  net: hns: fix for unmapping problem when SMMU is on
  xen-netback: handle page straddling in xenvif_set_hash_mapping()
  xen-netback: validate queue numbers in xenvif_set_hash_mapping()
  xen-netback: fix input validation in xenvif_set_hash_mapping()
  net: macb: Clean 64b dma addresses if they are not detected
  perf script python: Fix export-to-sqlite.py sample columns
  perf script python: Fix export-to-postgresql.py occasional failure
  i2c: i2c-isch: fix spelling mistake "unitialized" -> "uninitialized"
  i2c: i2c-qcom-geni: Properly handle DMA safe buffers
  ARM: dts: BCM63xx: Fix incorrect interrupt specifiers
  arm64: hugetlb: Avoid unnecessary clearing in huge_ptep_set_access_flags
  arm64: hugetlb: Fix handling of young ptes
  KVM: x86: never trap MSR_KERNEL_GS_BASE
  USB: serial: simple: add Motorola Tetra MTP6550 id
  HID: intel-ish-hid: Enable Ice Lake mobile
  HID: i2c-hid: Remove RESEND_REPORT_DESCR quirk and its handling
  vfs: swap names of {do,vfs}_clone_file_range()
  ovl: fix freeze protection bypass in ovl_clone_file_range()
  ovl: fix freeze protection bypass in ovl_write_iter()
  ovl: fix memory leak on unlink of indexed file
  MAINTAINERS: update the Annapurna Labs maintainer email
  ieee802154: remove unecessary condition check before debugfs_remove_recursive
  ieee802154: Use kmemdup instead of duplicating it in ca8210_test_int_driver_write
  crypto: caam/jr - fix ablkcipher_edesc pointer arithmetic
  netfilter: conntrack: get rid of double sizeof
  netfilter: nft_osf: use enum nft_data_types for nft_validate_register_store
  netfilter: bridge: Don't sabotage nf_hook calls from an l3mdev
  drm/i2c: tda9950: set MAX_RETRIES for errors only
  drm/i2c: tda9950: fix timeout counter check
  b43: fix DMA error related regression with proprietary firmware
  s390/hibernate: fix error handling when suspend cpu != resume cpu
  ALSA: hda: Fix the audio-component completion timeout
  xfrm: validate template mode
  ARM: dts: sun8i: drop A64 HDMI PHY fallback compatible from R40 DT
  kbuild: allow to use GCC toolchain not in Clang search path
  ftrace: Build with CPPFLAGS to get -Qunused-arguments
  ARM: 8799/1: mm: fix pci_ioremap_io() offset check
  ARM: 8787/1: wire up io_pgetevents syscall
  gpiolib: Free the last requested descriptor
  ARC: build: Don't set CROSS_COMPILE in arch's Makefile
  sysfs: Do not return POSIX ACL xattrs via listxattr
  dm raid: remove bogus const from decipher_sync_action() return type
  dm mpath: fix attached_handler_name leak and dangling hw_handler_name pointer
  mmc: sdhi: sys_dmac: check for all Gen3 types when whitelisting
  dm thin metadata: fix __udivdi3 undefined on 32-bit
  mt76x0: fix remove_interface
  ARC: fix spelling mistake "entires" -> "entries"
  USB: serial: option: add two-endpoints device-id flag
  USB: serial: option: improve Quectel EP06 detection
  HID: i2c-hid: disable runtime PM operations on hantick touchpad
  ARC: build: Get rid of toolchain check
  ARM: dts: at91: sama5d2_ptc_ek: fix nand pinctrl
  ARM: dts: imx53-qsb: disable 1.2GHz OPP
  xfrm: Fix NULL pointer dereference when skb_dst_force clears the dst_entry.
  ARCv2: build: use mcpu=hs38 iso generic mcpu=archs
  mac80211: fix TX status reporting for ieee80211s
  mac80211: TDLS: fix skb queue/priority assignment
  cfg80211: Address some corner cases in scan result channel updating
  mac80211: fix pending queue hang due to TX_DROP
  cfg80211: reg: Init wiphy_idx in regulatory_hint_core()
  mac80211: Don't wake up from PS for offchannel TX
  mac80211: Always report TX status
  xfrm: reset crypto_done when iterating over multiple input xfrms
  xfrm: reset transport header back to network header after all input transforms ahave been applied
  xfrm6: call kfree_skb when skb is toobig
  xfrm: Validate address prefix lengths in the xfrm selector.

[rishabhb@codeaurora.org: resolved some minor conflicts]
Signed-off-by: Rishabh Bhatnagar <rishabhb@codeaurora.org>
Change-Id: Ic3fb7f2c090b32694426ab160416f6a59cca8126
 2018-10-15 11:47:50 -07:00
Amir Goldstein
a725356b66 vfs: swap names of {do,vfs}_clone_file_range() 
Commit 031a072a0b ("vfs: call vfs_clone_file_range() under freeze
protection") created a wrapper do_clone_file_range() around
vfs_clone_file_range() moving the freeze protection to former, so
overlayfs could call the latter.

The more common vfs practice is to call do_xxx helpers from vfs_xxx
helpers, where freeze protecction is taken in the vfs_xxx helper, so
this anomality could be a source of confusion.

It seems that commit 8ede205541 ("ovl: add reflink/copyfile/dedup
support") may have fallen a victim to this confusion -
ovl_clone_file_range() calls the vfs_clone_file_range() helper in the
hope of getting freeze protection on upper fs, but in fact results in
overlayfs allowing to bypass upper fs freeze protection.

Swap the names of the two helpers to conform to common vfs practice
and call the correct helpers from overlayfs and nfsd.

Signed-off-by: Amir Goldstein <amir73il@gmail.com>
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
 2018-09-24 10:54:01 +02:00
Rishabh Bhatnagar
af3f58fa5f Merge remote-tracking branch 'origin/tmp-7876320' into msm-kona 
* origin/tmp-7876320:
  Linux 4.19-rc4
  Code of Conduct: Let's revamp it.
  x86/APM: Fix build warning when PROC_FS is not enabled
  NFS: Don't open code clearing of delegation state
  NFSv4.1 fix infinite loop on I/O.
  NFSv4: Fix a tracepoint Oops in initiate_file_draining()
  pNFS: Ensure we return the error if someone kills a waiting layoutget
  NFSv4: Fix a tracepoint Oops in initiate_file_draining()
  Revert "x86/mm/legacy: Populate the user page-table with user pgd's"
  xen/gntdev: fix up blockable calls to mn_invl_range_start
  xen: fix GCC warning and remove duplicate EVTCHN_ROW/EVTCHN_COL usage
  xen: avoid crash in disable_hotplug_cpu
  xen/balloon: add runtime control for scrubbing ballooned out pages
  xen/manage: don't complain about an empty value in control/sysrq node
  asm-generic: io: Fix ioport_map() for !CONFIG_GENERIC_IOMAP && CONFIG_INDIRECT_PIO
  mm: get rid of vmacache_flush_all() entirely
  MAINTAINERS: Make Dennis the percpu tree maintainer
  pstore: Fix incorrect persistent ram buffer mapping
  drm/nouveau/devinit: fix warning when PMU/PRE_OS is missing
  null_blk: fix zoned support for non-rq based operation
  cifs: read overflow in is_valid_oplock_break()
  nfp: flower: reject tunnel encap with ipv6 outer headers for offloading
  nfp: flower: fix vlan match by checking both vlan id and vlan pcp
  tipc: check return value of __tipc_dump_start()
  s390/qeth: don't dump past end of unknown HW header
  s390/qeth: use vzalloc for QUERY OAT buffer
  s390/qeth: switch on SG by default for IQD devices
  s390/qeth: indicate error when netdev allocation fails
  x86/efi: Load fixmap GDT in efi_call_phys_epilog() before setting %cr3
  x86/xen: Disable CPU0 hotplug for Xen PV
  tracing/Makefile: Fix handling redefinition of CC_FLAGS_FTRACE
  cifs: integer overflow in in SMB2_ioctl()
  CIFS: fix wrapping bugs in num_entries()
  cifs: prevent integer overflow in nxt_dir_entry()
  s390/zcrypt: remove VLA usage from the AP bus
  firmware: Fix security issue with request_firmware_into_buf()
  vmbus: don't return values for uninitalized channels
  fpga: dfl: fme: fix return value check in in pr_mgmt_init()
  misc: hmc6352: fix potential Spectre v1
  Tools: hv: Fix a bug in the key delete code
  misc: ibmvsm: Fix wrong assignment of return code
  android: binder: fix the race mmap and alloc_new_buf_locked
  mei: bus: need to unlink client before freeing
  mei: bus: fix hw module get/put balance
  mei: fix use-after-free in mei_cl_write
  mei: ignore not found client in the enumeration
  rds: fix two RCU related problems
  r8169: Clear RTL_FLAG_TASK_*_PENDING when clearing RTL_FLAG_TASK_ENABLED
  erspan: fix error handling for erspan tunnel
  erspan: return PACKET_REJECT when the appropriate tunnel is not found
  tcp: rate limit synflood warnings further
  MIPS: lantiq: dma: add dev pointer
  xtensa: enable SG chaining in Kconfig
  xtensa: remove unnecessary KBUILD_SRC ifeq conditional
  PCI: Fix enabling of PASID on RC integrated endpoints
  IB/hfi1,PCI: Allow bus reset while probing
  PCI: Fix faulty logic in pci_reset_bus()
  x86/EISA: Don't probe EISA bus for Xen PV guests
  drm/amdgpu: fix error handling in amdgpu_cs_user_fence_chunk
  perf tools: Fix maps__find_symbol_by_name()
  tools headers uapi: Update tools's copy of linux/if_link.h
  blk-cgroup: increase number of supported policies
  staging: vboxvideo: Change address of scanout buffer on page-flip
  staging: vboxvideo: Fix IRQs no longer working
  of: fix phandle cache creation for DTs with no phandles
  tools headers uapi: Update tools's copy of linux/vhost.h
  tools headers uapi: Update tools's copies of kvm headers
  drm/i915/overlay: Allocate physical registers from stolen
  tools headers uapi: Update tools's copy of drm/drm.h
  tools headers uapi: Update tools's copy of asm-generic/unistd.h
  tools headers uapi: Update tools's copy of linux/perf_event.h
  PCI: pciehp: Fix hot-add vs powerfault detection order
  switchtec: Fix Spectre v1 vulnerability
  Revert "PCI: Add ACS quirk for Intel 300 series"
  MAINTAINERS: Add Gustavo Pimentel as DesignWare PCI maintainer
  MAINTAINERS: Add entries for PPC64 RPA PCI hotplug drivers
  arm64: kernel: arch_crash_save_vmcoreinfo() should depend on CONFIG_CRASH_CORE
  arm64: jump_label.h: use asm_volatile_goto macro instead of "asm goto"
  Revert "printk: make sure to print log on console."
  drm/amdgpu: move PSP init prior to IH in gpu reset
  drm/amdgpu: Fix SDMA hang in prt mode v2
  drm/amdgpu: fix amdgpu_mn_unlock() in the CS error path
  hexagon: modify ffs() and fls() to return int
  arch/hexagon: fix kernel/dma.c build warning
  netfilter: xt_hashlimit: use s->file instead of s->private
  netfilter: nfnetlink_queue: Solve the NFQUEUE/conntrack clash for NF_REPEAT
  netfilter: cttimeout: ctnl_timeout_find_get() returns incorrect pointer to type
  netfilter: conntrack: timeout interface depend on CONFIG_NF_CONNTRACK_TIMEOUT
  netfilter: conntrack: reset tcp maxwin on re-register
  dm thin metadata: try to avoid ever aborting transactions
  Revert "cdc-acm: implement put_char() and flush_chars()"
  usb: Change usb_of_get_companion_dev() place to usb/common
  usb: xhci: fix interrupt transfer error happened on MTK platforms
  qmi_wwan: Support dynamic config on Quectel EP06
  drm/i915/bdw: Increase IPS disable timeout to 100ms
  ethernet: renesas: convert to SPDX identifiers
  staging: gasket: TODO: re-implement using UIO
  tty: hvc: hvc_write() fix break condition
  tty: hvc: hvc_poll() fix read loop batching
  tty: hvc: hvc_poll() fix read loop hang
  x86/doc: Fix Documentation/x86/earlyprintk.txt
  perf/core: Force USER_DS when recording user stack data
  locking/ww_mutex: Fix spelling mistake "cylic" -> "cyclic"
  locking/lockdep: Delete unnecessary #include
  tools/lib/lockdep: Add dummy task_struct state member
  tools/lib/lockdep: Add empty nmi.h
  tools/lib/lockdep: Update Sasha Levin email to MSFT
  ovl: fix oopses in ovl_fill_super() failure paths
  staging/fbtft: Update TODO and mailing lists
  sched/fair: Fix kernel-doc notation warning
  jump_label: Fix typo in warning message
  sched/fair: Fix load_balance redo for !imbalance
  sched/fair: Fix scale_rt_capacity() for SMT
  sched/fair: Fix vruntime_normalized() for remote non-migration wakeup
  sched/pelt: Fix update_blocked_averages() for RT and DL classes
  sched/topology: Set correct NUMA topology type
  sched/debug: Fix potential deadlock when writing to sched_features
  staging: erofs: rename superblock flags (MS_xyz -> SB_xyz)
  locking/mutex: Fix mutex debug call and ww_mutex documentation
  perf/UAPI: Clearly mark __PERF_SAMPLE_CALLCHAIN_EARLY as internal use
  perf/x86/intel: Add support/quirk for the MISPREDICT bit on Knights Landing CPUs
  ip: frags: fix crash in ip_do_fragment()
  net/tls: Set count of SG entries if sk_alloc_sg returns -ENOSPC
  net: ena: fix incorrect usage of memory barriers
  net: ena: fix missing calls to READ_ONCE
  net: ena: fix missing lock during device destruction
  net: ena: fix potential double ena_destroy_device()
  net: ena: fix device destruction to gracefully free resources
  net: ena: fix driver when PAGE_SIZE == 64kB
  net: ena: fix surprise unplug NULL dereference kernel crash
  fs/cifs: require sha512
  fs/cifs: suppress a string overflow warning
  tcp: really ignore MSG_ZEROCOPY if no SO_ZEROCOPY
  net_sched: properly cancel netlink dump on failure
  xen/netfront: fix waiting for xenbus state change
  r8169: set TxConfig register after TX / RX is enabled, just like RxConfig
  tipc: call start and done ops directly in __tipc_nl_compat_dumpit()
  dm raid: bump target version, update comments and documentation
  dm raid: fix RAID leg rebuild errors
  dm raid: fix rebuild of specific devices by updating superblock
  dm raid: fix stripe adding reshape deadlock
  drm/nouveau/disp/gm200-: enforce identity-mapped SOR assignment for LVDS/eDP panels
  drm/nouveau/disp: fix DP disable race
  drm/nouveau/disp: move eDP panel power handling
  drm/nouveau/disp: remove unused struct member
  drm/nouveau/TBDdevinit: don't fail when PMU/PRE_OS is missing from VBIOS
  drm/nouveau/mmu: don't attempt to dereference vmm without valid instance pointer
  drm/nouveau: fix oops in client init failure path
  drm/nouveau: Fix nouveau_connector_ddc_detect()
  drm/nouveau/drm/nouveau: Don't forget to cancel hpd_work on suspend/unload
  drm/nouveau/drm/nouveau: Prevent handling ACPI HPD events too early
  drm/nouveau: Reset MST branching unit before enabling
  drm/nouveau: Only write DP_MSTM_CTRL when needed
  drm/nouveau: Remove useless poll_enable() call in drm_load()
  drm/nouveau: Remove useless poll_disable() call in switcheroo_set_state()
  drm/nouveau: Remove useless poll_enable() call in switcheroo_set_state()
  drm/nouveau: Fix deadlocks in nouveau_connector_detect()
  drm/nouveau/drm/nouveau: Use pm_runtime_get_noresume() in connector_detect()
  drm/nouveau/drm/nouveau: Fix deadlock with fb_helper with async RPM requests
  drm/nouveau: Remove duplicate poll_enable() in pmops_runtime_suspend()
  drm/nouveau/drm/nouveau: Fix bogus drm_kms_helper_poll_enable() placement
  RDMA/mlx4: Ensure that maximal send/receive SGE less than supported by HW
  RDMA/cma: Protect cma dev list with lock
  xtensa: ISS: don't allocate memory in platform_setup
  dm raid: fix reshape race on small devices
  dm: disable CRYPTO_TFM_REQ_MAY_SLEEP to fix a GFP_KERNEL recursion deadlock
  HID: i2c-hid: Don't reset device upon system resume
  net/iucv: declare iucv_path_table_empty() as static
  net/af_iucv: fix skb handling on HiperTransport xmit error
  net/af_iucv: drop inbound packets with invalid flags
  net/sched: fix memory leak in act_tunnel_key_init()
  tipc: orphan sock in tipc_release()
  drm/i915/gvt: Fix the incorrect length of child_device_config issue
  net/mlx5: Fix possible deadlock from lockdep when adding fte to fg
  net/mlx5e: Ethtool steering, fix udp source port value
  net/mlx5: Check for error in mlx5_attach_interface
  net/mlx5: Consider PCI domain in search for next dev
  net/mlx5: Fix not releasing read lock when adding flow rules
  net/mlx5: E-Switch, Fix memory leak when creating switchdev mode FDB tables
  net/mlx5: Use u16 for Work Queue buffer strides offset
  net/mlx5: Use u16 for Work Queue buffer fragment size
  net/mlx5: Fix debugfs cleanup in the device init/remove flow
  net/mlx5: Fix use-after-free in self-healing flow
  RDMA/uverbs: Fix error cleanup path of ib_uverbs_add_one()
  bnxt_re: Fix couple of memory leaks that could lead to IOMMU call traces
  IB/ipoib: Avoid a race condition between start_xmit and cm_rep_handler
  nvmet-rdma: fix possible bogus dereference under heavy load
  net: qca_spi: Fix race condition in spi transfers
  be2net: Fix memory leak in be_cmd_get_profile_config()
  mlxsw: spectrum_buffers: Set up a dedicated pool for BUM traffic
  usb: cdc-wdm: Fix a sleep-in-atomic-context bug in service_outstanding_interrupt()
  usb: misc: uss720: Fix two sleep-in-atomic-context bugs
  usb: host: u132-hcd: Fix a sleep-in-atomic-context bug in u132_get_frame()
  usb: Avoid use-after-free by flushing endpoints early in usb_set_interface()
  linux/mod_devicetable.h: fix kernel-doc missing notation for typec_device_id
  usb/typec: fix kernel-doc notation warning for typec_match_altmode
  usb: Don't die twice if PCI xhci host is not responding in resume
  usb: mtu3: fix error of xhci port id when enable U3 dual role
  usb: uas: add support for more quirk flags
  USB: Add quirk to support DJI CineSSD
  usb: typec: fix kernel-doc parameter warning
  usb/dwc3/gadget: fix kernel-doc parameter warning
  USB: yurex: Check for truncation in yurex_read()
  USB: yurex: Fix buffer over-read in yurex_write()
  usb: host: xhci-plat: Iterate over parent nodes for finding quirks
  xhci: Fix use after free for URB cancellation on a reallocated endpoint
  USB: add quirk for WORLDE Controller KS49 or Prodipe MIDI 49C USB controller
  usb: dwc2: Fix call location of dwc2_check_core_endianness
  HID: sensor-hub: Restore fixup for Lenovo ThinkPad Helix 2 sensor hub report
  HID: core: fix NULL pointer dereference
  mmc: meson-mx-sdio: fix OF child-node lookup
  riscv: Do not overwrite initrd_start and initrd_end
  iw_cxgb4: only allow 1 flush on user qps
  IB/core: Release object lock if destroy failed
  RDMA/ucma: check fd type in ucma_migrate_id()
  HID: core: fix grouping by application
  HID: multitouch: fix Elan panels with 2 input modes declaration
  dm verity: fix crash on bufio buffer that was allocated with vmalloc
  mmc: omap_hsmmc: fix wakeirq handling on removal
  s390/crypto: Fix return code checking in cbc_paes_crypt()
  drm/i915/gvt: Fix life cycle reference on KVM mm
  ovl: add ovl_fadvise()
  iio: imu: st_lsm6dsx: take into account ts samples in wm configuration
  Revert "iio: temperature: maxim_thermocouple: add MAX31856 part"
  ipmi: Fix NULL pointer dereference in ssif_probe
  netfilter: nf_tables: release chain in flushing set
  netfilter: kconfig: nat related expression depend on nftables core
  ipmi: Fix I2C client removal in the SSIF driver
  ipmi: Move BT capabilities detection to the detect call
  ipmi: Rework SMI registration failure
  ipmi: kcs_bmc: don't change device name
  perf annotate: Fix parsing aarch64 branch instructions after objdump update
  perf probe powerpc: Ignore SyS symbols irrespective of endianness
  vfs: implement readahead(2) using POSIX_FADV_WILLNEED
  perf event-parse: Use fixed size string for comms
  perf util: Fix bad memory access in trace info.
  perf tools: Streamline bpf examples and headers installation
  perf evsel: Fix potential null pointer dereference in perf_evsel__new_idx()
  perf arm64: Fix include path for asm-generic/unistd.h
  perf/hw_breakpoint: Simplify breakpoint enable in perf_event_modify_breakpoint
  perf/hw_breakpoint: Enable breakpoint in modify_user_hw_breakpoint
  perf/hw_breakpoint: Remove superfluous bp->attr.disabled = 0
  perf/hw_breakpoint: Modify breakpoint even if the new attr has disabled set
  perf tests: Add breakpoint modify tests
  perf annotate: Properly interpret indirect call
  vfs: add the fadvise() file operation
  Documentation/filesystems: update documentation of file_operations
  ovl: fix GPF in swapfile_activate of file from overlayfs over xfs
  ovl: respect FIEMAP_FLAG_SYNC flag
  scsi: qedi: Add the CRC size within iSCSI NVM image
  scsi: iscsi: target: Fix conn_ops double free
  scsi: iscsi: target: Set conn->sess to NULL when iscsi_login_set_conn_values fails
  HID: hid-saitek: Add device ID for RAT 7 Contagion
  pinctrl: madera: Fix possible NULL pointer with pdata config
  pinctrl: ingenic: Fix group & function error checking
  netfilter: nf_tables: rework ct timeout set support
  netfilter: conntrack: place 'new' timeout in first location too
  pinctrl: msm: Really mask level interrupts to prevent latching
  usb: dwc3: pci: Fix return value check in dwc3_byt_enable_ulpi_refclock()
  usb: gadget: udc: renesas_usb3: fix maxpacket size of ep0
  usb: gadget: fotg210-udc: Fix memory leak of fotg210->ep[i]
  USB: net2280: Fix erroneous synchronization change
  usb: dwc3: of-simple: avoid unused function warnings
  Revert "staging: erofs: disable compiling temporarile"
  HID: core: fix memory leak on probe
  HID: input: fix leaking custom input node name
  HID: add support for Apple Magic Keyboards
  HID: i2c-hid: Fix flooded incomplete report after S3 on Rayd touchscreen
  HID: intel-ish-hid: Enable Sunrise Point-H ish driver
  MAINTAINERS: Switch a maintainer for drivers/staging/gasket
  staging: wilc1000: revert "fix TODO to compile spi and sdio components in single module"
  USB: serial: ti_usb_3410_5052: fix array underflow in completion handler
  USB: serial: io_ti: fix array underflow in completion handler
  dmaengine: mic_x100_dma: use devm_kzalloc to fix an issue
  netfilter: xt_checksum: ignore gso skbs
  netfilter: xt_cluster: add dependency on conntrack module
  netfilter: conntrack: remove duplicated include from nf_conntrack_proto_udp.c

Change-Id: I9fdae855388077fd5a44e66153c360a7ed1c7cc5
[rishabhb@codeaurora.org:Resolved minor merge conflicts].
Signed-off-by: Rishabh Bhatnagar <rishabhb@codeaurora.org>
 2018-09-17 14:55:43 -07:00
Amir Goldstein
45cd0faae3 vfs: add the fadvise() file operation 
This is going to be used by overlayfs and possibly useful
for other filesystems.

Signed-off-by: Amir Goldstein <amir73il@gmail.com>
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
 2018-08-30 17:08:35 +02:00
Daniel Rosenberg
9d80678fd2 RFC: ANDROID: vfs: Add permission2 for filesystems with per mount permissions 
This allows filesystems to use their mount private data to
influence the permssions they return in permission2. It has
been separated into a new call to avoid disrupting current
permission users.

Change-Id: I9d416e3b8b6eca84ef3e336bd2af89ddd51df6ca
Signed-off-by: Daniel Rosenberg <drosen@google.com>

[AmitP: Minor refactoring of original patch to align with
        changes from the following upstream commit
        4bfd054ae1 ("fs: fold __inode_permission() into inode_permission()").

        Also introduce vfs_mkobj2(), because do_create()
        moved from using vfs_create() to vfs_mkobj()
        eecec19d9e ("mqueue: switch to vfs_mkobj(), quit abusing ->d_fsdata")

        do_create() is dropped/cleaned up upstream so a
        minor refactoring there as well.
        066cc813e9 ("do_mq_open(): move all work prior to dentry_open() into a helper")]
Signed-off-by: Amit Pundir <amit.pundir@linaro.org>
 2018-08-28 17:10:42 +05:30
Daniel Rosenberg
45c410859e ANDROID: vfs: Add setattr2 for filesystems with per mount permissions 
This allows filesystems to use their mount private data to
influence the permssions they use in setattr2. It has
been separated into a new call to avoid disrupting current
setattr users.

Change-Id: I19959038309284448f1b7f232d579674ef546385
Signed-off-by: Daniel Rosenberg <drosen@google.com>
 2018-08-28 17:10:42 +05:30
Daniel Rosenberg
5d212327f0 ANDROID: vfs: Allow filesystems to access their private mount data 
Now we pass the vfsmount when mounting and remounting.
This allows the filesystem to actually set up the mount
specific data, although we can't quite do anything with
it yet. show_options is expanded to include data that
lives with the mount.

To avoid changing existing filesystems, these have
been added as new vfs functions.

Change-Id: If80670bfad9f287abb8ac22457e1b034c9697097
Signed-off-by: Daniel Rosenberg <drosen@google.com>
 2018-08-28 17:10:42 +05:30
Daniel Rosenberg
154c0f4864 ANDROID: mnt: Add filesystem private data to mount points 
This starts to add private data associated directly
to mount points. The intent is to give filesystems
a sense of where they have come from, as a means of
letting a filesystem take different actions based on
this information.

Change-Id: Ie769d7b3bb2f5972afe05c1bf16cf88c91647ab2
Signed-off-by: Daniel Rosenberg <drosen@google.com>
 2018-08-28 17:10:42 +05:30
Salvatore Mesoraca
30aba6656f namei: allow restricted O_CREAT of FIFOs and regular files 
Disallows open of FIFOs or regular files not owned by the user in world
writable sticky directories, unless the owner is the same as that of the
directory or the file is opened without the O_CREAT flag.  The purpose
is to make data spoofing attacks harder.  This protection can be turned
on and off separately for FIFOs and regular files via sysctl, just like
the symlinks/hardlinks protection.  This patch is based on Openwall's
"HARDEN_FIFO" feature by Solar Designer.

This is a brief list of old vulnerabilities that could have been prevented
by this feature, some of them even allow for privilege escalation:

CVE-2000-1134
CVE-2007-3852
CVE-2008-0525
CVE-2009-0416
CVE-2011-4834
CVE-2015-1838
CVE-2015-7442
CVE-2016-7489

This list is not meant to be complete.  It's difficult to track down all
vulnerabilities of this kind because they were often reported without any
mention of this particular attack vector.  In fact, before
hardlinks/symlinks restrictions, fifos/regular files weren't the favorite
vehicle to exploit them.

[s.mesoraca16@gmail.com: fix bug reported by Dan Carpenter]
  Link: https://lkml.kernel.org/r/20180426081456.GA7060@mwanda
  Link: http://lkml.kernel.org/r/1524829819-11275-1-git-send-email-s.mesoraca16@gmail.com
[keescook@chromium.org: drop pr_warn_ratelimited() in favor of audit changes in the future]
[keescook@chromium.org: adjust commit subjet]
Link: http://lkml.kernel.org/r/20180416175918.GA13494@beast
Signed-off-by: Salvatore Mesoraca <s.mesoraca16@gmail.com>
Signed-off-by: Kees Cook <keescook@chromium.org>
Suggested-by: Solar Designer <solar@openwall.com>
Suggested-by: Kees Cook <keescook@chromium.org>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
 2018-08-23 18:48:43 -07:00
Linus Torvalds
d9a185f8b4 Merge tag 'ovl-update-4.19' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/vfs 
Pull overlayfs updates from Miklos Szeredi:
 "This contains two new features:

   - Stack file operations: this allows removal of several hacks from
     the VFS, proper interaction of read-only open files with copy-up,
     possibility to implement fs modifying ioctls properly, and others.

   - Metadata only copy-up: when file is on lower layer and only
     metadata is modified (except size) then only copy up the metadata
     and continue to use the data from the lower file"

* tag 'ovl-update-4.19' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/vfs: (66 commits)
  ovl: Enable metadata only feature
  ovl: Do not do metacopy only for ioctl modifying file attr
  ovl: Do not do metadata only copy-up for truncate operation
  ovl: add helper to force data copy-up
  ovl: Check redirect on index as well
  ovl: Set redirect on upper inode when it is linked
  ovl: Set redirect on metacopy files upon rename
  ovl: Do not set dentry type ORIGIN for broken hardlinks
  ovl: Add an inode flag OVL_CONST_INO
  ovl: Treat metacopy dentries as type OVL_PATH_MERGE
  ovl: Check redirects for metacopy files
  ovl: Move some dir related ovl_lookup_single() code in else block
  ovl: Do not expose metacopy only dentry from d_real()
  ovl: Open file with data except for the case of fsync
  ovl: Add helper ovl_inode_realdata()
  ovl: Store lower data inode in ovl_inode
  ovl: Fix ovl_getattr() to get number of blocks from lower
  ovl: Add helper ovl_dentry_lowerdata() to get lower data dentry
  ovl: Copy up meta inode data from lowest data inode
  ovl: Modify ovl_lookup() and friends to lookup metacopy dentry
  ...
 2018-08-21 18:19:09 -07:00
Jens Axboe
74c8164e1c mpage: mpage_readpages() should submit IO as read-ahead 
a_ops->readpages() is only ever used for read-ahead, yet we don't flag
the IO being submitted as such.  Fix that up.  Any file system that uses
mpage_readpages() as its ->readpages() implementation will now get this
right.

Since we're passing in whether the IO is read-ahead or not, we don't
need to pass in the 'gfp' separately, as it is dependent on the IO being
read-ahead.  Kill off that member.

Add some documentation notes on ->readpages() being purely for
read-ahead.

Link: http://lkml.kernel.org/r/20180621010725.17813-3-axboe@kernel.dk
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Reviewed-by: Andrew Morton <akpm@linux-foundation.org>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Chris Mason <clm@fb.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Theodore Ts'o <tytso@mit.edu>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
 2018-08-17 16:20:29 -07:00
NeilBrown
4cdfffc872 vfs: discard ATTR_ATTR_FLAG 
This flag was introduce in 2.1.37pre1 and the only place it was tested
was removed in 2.1.43pre1.  The flag was never set.

Let's discard it properly.

Link: http://lkml.kernel.org/r/877en0hewz.fsf@notabene.neil.brown.name
Signed-off-by: NeilBrown <neilb@suse.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
 2018-08-17 16:20:28 -07:00
Linus Torvalds
4591343e35 Merge branches 'work.misc' and 'work.dcache' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 
Pull misc vfs updates from Al Viro:
 "Misc cleanups from various folks all over the place

  I expected more fs/dcache.c cleanups this cycle, so that went into a
  separate branch. Said cleanups have missed the window, so in the
  hindsight it could've gone into work.misc instead. Decided not to
  cherry-pick, thus the 'work.dcache' branch"

* 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
  fs: dcache: Use true and false for boolean values
  fold generic_readlink() into its only caller
  fs: shave 8 bytes off of struct inode
  fs: Add more kernel-doc to the produced documentation
  fs: Fix attr.c kernel-doc
  removed extra extern file_fdatawait_range

* 'work.dcache' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
  kill dentry_update_name_case()
 2018-08-13 21:28:25 -07:00
Linus Torvalds
0ea97a2d61 Merge branch 'work.mkdir' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 
Pull vfs icache updates from Al Viro:

 - NFS mkdir/open_by_handle race fix

 - analogous solution for FUSE, replacing the one currently in mainline

 - new primitive to be used when discarding halfway set up inodes on
   failed object creation; gives sane warranties re icache lookups not
   returning such doomed by still not freed inodes. A bunch of
   filesystems switched to that animal.

 - Miklos' fix for last cycle regression in iget5_locked(); -stable will
   need a slightly different variant, unfortunately.

 - misc bits and pieces around things icache-related (in adfs and jfs).

* 'work.mkdir' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
  jfs: don't bother with make_bad_inode() in ialloc()
  adfs: don't put inodes into icache
  new helper: inode_fake_hash()
  vfs: don't evict uninitialized inode
  jfs: switch to discard_new_inode()
  ext2: make sure that partially set up inodes won't be returned by ext2_iget()
  udf: switch to discard_new_inode()
  ufs: switch to discard_new_inode()
  btrfs: switch to discard_new_inode()
  new primitive: discard_new_inode()
  kill d_instantiate_no_diralias()
  nfs_instantiate(): prevent multiple aliases for directory inode
 2018-08-13 20:25:58 -07:00
Linus Torvalds
a66b4cd1e7 Merge branch 'work.open3' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 
Pull vfs open-related updates from Al Viro:

 - "do we need fput() or put_filp()" rules are gone - it's always fput()
   now. We keep track of that state where it belongs - in ->f_mode.

 - int *opened mess killed - in finish_open(), in ->atomic_open()
   instances and in fs/namei.c code around do_last()/lookup_open()/atomic_open().

 - alloc_file() wrappers with saner calling conventions are introduced
   (alloc_file_clone() and alloc_file_pseudo()); callers converted, with
   much simplification.

 - while we are at it, saner calling conventions for path_init() and
   link_path_walk(), simplifying things inside fs/namei.c (both on
   open-related paths and elsewhere).

* 'work.open3' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (40 commits)
  few more cleanups of link_path_walk() callers
  allow link_path_walk() to take ERR_PTR()
  make path_init() unconditionally paired with terminate_walk()
  document alloc_file() changes
  make alloc_file() static
  do_shmat(): grab shp->shm_file earlier, switch to alloc_file_clone()
  new helper: alloc_file_clone()
  create_pipe_files(): switch the first allocation to alloc_file_pseudo()
  anon_inode_getfile(): switch to alloc_file_pseudo()
  hugetlb_file_setup(): switch to alloc_file_pseudo()
  ocxlflash_getfile(): switch to alloc_file_pseudo()
  cxl_getfile(): switch to alloc_file_pseudo()
  ... and switch shmem_file_setup() to alloc_file_pseudo()
  __shmem_file_setup(): reorder allocations
  new wrapper: alloc_file_pseudo()
  kill FILE_{CREATED,OPENED}
  switch atomic_open() and lookup_open() to returning 0 in all success cases
  document ->atomic_open() changes
  ->atomic_open(): return 0 in all success cases
  get rid of 'opened' in path_openat() and the helpers downstream
  ...
 2018-08-13 19:58:36 -07:00
Al Viro
5bef915104 new helper: inode_fake_hash() 
open-coded in a quite a few places...

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
 2018-08-03 16:03:32 -04:00
Al Viro
c2b6d621c4 new primitive: discard_new_inode() 
We don't want open-by-handle picking half-set-up in-core
struct inode from e.g. mkdir() having failed halfway through.
In other words, we don't want such inodes returned by iget_locked()
on their way to extinction.  However, we can't just have them
unhashed - otherwise open-by-handle immediately *after* that would've
ended up creating a new in-core inode over the on-disk one that
is in process of being freed right under us.

	Solution: new flag (I_CREATING) set by insert_inode_locked() and
removed by unlock_new_inode() and a new primitive (discard_new_inode())
to be used by such halfway-through-setup failure exits instead of
unlock_new_inode() / iput() combinations.  That primitive unlocks new
inode, but leaves I_CREATING in place.

	iget_locked() treats finding an I_CREATING inode as failure
(-ESTALE, once we sort out the error propagation).
	insert_inode_locked() treats the same as instant -EBUSY.
	ilookup() treats those as icache miss.

[Fix by Dan Carpenter <dan.carpenter@oracle.com> folded in]

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
 2018-08-03 15:55:30 -04:00
Linus Torvalds
165ea0d1c2 Merge branch 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 
Pull vfs fixes from Al Viro:
 "Fix several places that screw up cleanups after failures halfway
  through opening a file (one open-coding filp_clone_open() and getting
  it wrong, two misusing alloc_file()). That part is -stable fodder from
  the 'work.open' branch.

  And Christoph's regression fix for uapi breakage in aio series;
  include/uapi/linux/aio_abi.h shouldn't be pulling in the kernel
  definition of sigset_t, the reason for doing so in the first place had
  been bogus - there's no need to expose struct __aio_sigset in
  aio_abi.h at all"

* 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
  aio: don't expose __aio_sigset in uapi
  ocxlflash_getfile(): fix double-iput() on alloc_file() failures
  cxl_getfile(): fix double-iput() on alloc_file() failures
  drm_mode_create_lease_ioctl(): fix open-coded filp_clone_open()
 2018-07-22 12:04:51 -07:00
Miklos Szeredi
fb16043b46 vfs: remove open_flags from d_real() 
Opening regular files on overlayfs is now handled via ovl_open().  Remove
the now unused "open_flags" argument from d_op->d_real() and the d_real()
helper.

Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
 2018-07-18 15:44:44 +02:00
Miklos Szeredi
de2a4a501e Partially revert "locks: fix file locking on overlayfs" 
This partially reverts commit c568d68341.

Overlayfs files will now automatically get the correct locks, no need to
hack overlay support in VFS.

It is a partial revert, because it leaves the locks_inode() calls in place
and defines locks_inode() to file_inode().  We could revert those as well,
but it would be unnecessary code churn and it makes sense to document that
we are getting the inode for locking purposes.

Don't revert MS_NOREMOTELOCK yet since that has been part of the userspace
API for some time (though not in a useful way).  Will try to remove
internal flags later when the dust around the new mount API settles.

Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
Acked-by: Jeff Layton <jlayton@kernel.org>
 2018-07-18 15:44:43 +02:00
Miklos Szeredi
4ab30319fd Revert "vfs: add flags to d_real()" 
This reverts commit 495e642939.

No user of "flags" argument of d_real() remain.

Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
 2018-07-18 15:44:43 +02:00
Miklos Szeredi
c671854346 Revert "vfs: update ovl inode before relatime check" 
This reverts commit 598e3c8f72.

Overlayfs no longer relies on the vfs correct atime handling.

Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
 2018-07-18 15:44:43 +02:00
Miklos Szeredi
f182536684 vfs: export vfs_dedupe_file_range_one() to modules 
This is needed by the stacked dedupe implementation in overlayfs.

Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
 2018-07-18 15:44:40 +02:00
Miklos Szeredi
9df6702ad0 vfs: export vfs_ioctl() to modules 
This is needed by the stacked ioctl implementation in overlayfs.

Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
 2018-07-18 15:44:40 +02:00
Miklos Szeredi
d3b1084dfd vfs: make open_with_fake_path() not contribute to nr_files 
Stacking file operations in overlay will store an extra open file for each
overlay file opened.

The overhead is just that of "struct file" which is about 256bytes, because
overlay already pins an extra dentry and inode when the file is open, which
add up to a much larger overhead.

For fear of breaking working setups, don't start accounting the extra file.

Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
 2018-07-18 15:44:40 +02:00
Miklos Szeredi
51e6ce820b Merge branch 'dedupe-cleanup' into overlayfs-next 
Following series for stacking overlay files depends on this mini series.
 2018-07-18 15:39:29 +02:00
Al Viro
2abc77af89 new helper: open_with_fake_path() 
open a file by given inode, faking ->f_path.  Use with shitloads
of caution - at the very least you'd damn better make sure that
some dentry alias of that inode is pinned down by the path in
question.  Again, this is no general-purpose interface and I hope
it will eventually go away.  Right now overlayfs wants something
like that, but nothing else should.

Any out-of-tree code with bright idea of using this one *will*
eventually get hurt, with zero notice and great delight on my part.
I refuse to use EXPORT_SYMBOL_GPL(), especially in situations when
it's really EXPORT_SYMBOL_DONT_USE_IT(), but don't take that export
as "you are welcome to use it".

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
 2018-07-12 11:18:42 -04:00
Al Viro
dbae8f2ca2 kill FILE_{CREATED,OPENED} 
no users left

Acked-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
 2018-07-12 10:04:23 -04:00
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
f5d11409e6 introduce FMODE_OPENED 
basically, "is that instance set up enough for regular fput(), or
do we want put_filp() for that one".

NOTE: the only alloc_file() caller that could be followed by put_filp()
is in arch/ia64/kernel/perfmon.c, which is (Kconfig-level) broken.

Acked-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
 2018-07-12 10:04:16 -04:00
Al Viro
b4e7a7a88b drm_mode_create_lease_ioctl(): fix open-coded filp_clone_open() 
Failure of ->open() should *not* be followed by fput().  Fixed by
using filp_clone_open(), which gets the cleanups right.

Cc: stable@vger.kernel.org
Acked-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
 2018-07-10 23:29:03 -04:00
Al Viro
19f391eb05 turn filp_clone_open() into inline wrapper for dentry_open() 
it's exactly the same thing as
	dentry_open(&file->f_path, file->f_flags, file->f_cred)

... and rename it to file_clone_open(), while we are at it.
'filp' naming convention is bogus; sure, it's "file pointer",
but we generally don't do that kind of Hungarian notation.
Some of the instances have too many callers to touch, but this
one has only two, so let's sanitize it while we can...

Acked-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
 2018-07-10 23:29:03 -04:00
Amir Goldstein
69448867ab fs: shave 8 bytes off of struct inode 
Here is a link to Linus' reply to Jan's concern about making
i_blkbibts byte addressable:
https://marc.info/?l=linux-fsdevel&m=152882624707975&w=2

Here is a link to an lkp.org report about potential performance
improvement in some workload, which could(?) be related to packing
i_blkbits closer to i_bytes/i_lock:
https://marc.info/?l=linux-fsdevel&m=153077048108198&w=2

Changes since v1:
- Add links to relevant discussions

Signed-off-by: Amir Goldstein <amir73il@gmail.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
 2018-07-08 19:58:24 -04:00
Miklos Szeredi
87eb5eb242 vfs: dedupe: rationalize args 
Clean up f_op->dedupe_file_range() interface.

1) Use loff_t for offsets and length instead of u64
2) Order the arguments the same way as {copy|clone}_file_range().

Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
 2018-07-06 23:57:03 +02:00
Miklos Szeredi
5740c99e9d vfs: dedupe: return int 
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
 2018-07-06 23:57:03 +02:00
Linus Torvalds
a11e1d432b Revert changes to convert to ->poll_mask() and aio IOCB_CMD_POLL 
The poll() changes were not well thought out, and completely
unexplained.  They also caused a huge performance regression, because
"->poll()" was no longer a trivial file operation that just called down
to the underlying file operations, but instead did at least two indirect
calls.

Indirect calls are sadly slow now with the Spectre mitigation, but the
performance problem could at least be largely mitigated by changing the
"->get_poll_head()" operation to just have a per-file-descriptor pointer
to the poll head instead.  That gets rid of one of the new indirections.

But that doesn't fix the new complexity that is completely unwarranted
for the regular case.  The (undocumented) reason for the poll() changes
was some alleged AIO poll race fixing, but we don't make the common case
slower and more complex for some uncommon special case, so this all
really needs way more explanations and most likely a fundamental
redesign.

[ This revert is a revert of about 30 different commits, not reverted
  individually because that would just be unnecessarily messy  - Linus ]

Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Christoph Hellwig <hch@lst.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
 2018-06-28 10:40:47 -07:00
Vasily Averin
cf85ec8870 removed extra extern file_fdatawait_range 
Jeff added this extern twice in commit a823e4589e

Fixes: a823e4589e ("mm: add file_fdatawait_range and file_write_and_wait")
Signed-off-by: Vasily Averin <vvs@virtuozzo.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
 2018-06-18 10:43:18 -04:00
Linus Torvalds
7a932516f5 Merge tag 'vfs-timespec64' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/playground 
Pull inode timestamps conversion to timespec64 from Arnd Bergmann:
 "This is a late set of changes from Deepa Dinamani doing an automated
  treewide conversion of the inode and iattr structures from 'timespec'
  to 'timespec64', to push the conversion from the VFS layer into the
  individual file systems.

  As Deepa writes:

   'The series aims to switch vfs timestamps to use struct timespec64.
    Currently vfs uses struct timespec, which is not y2038 safe.

    The series involves the following:
    1. Add vfs helper functions for supporting struct timepec64
       timestamps.
    2. Cast prints of vfs timestamps to avoid warnings after the switch.
    3. Simplify code using vfs timestamps so that the actual replacement
       becomes easy.
    4. Convert vfs timestamps to use struct timespec64 using a script.
       This is a flag day patch.

    Next steps:
    1. Convert APIs that can handle timespec64, instead of converting
       timestamps at the boundaries.
    2. Update internal data structures to avoid timestamp conversions'

  Thomas Gleixner adds:

   'I think there is no point to drag that out for the next merge
    window. The whole thing needs to be done in one go for the core
    changes which means that you're going to play that catchup game
    forever. Let's get over with it towards the end of the merge window'"

* tag 'vfs-timespec64' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/playground:
  pstore: Remove bogus format string definition
  vfs: change inode times to use struct timespec64
  pstore: Convert internal records to timespec64
  udf: Simplify calls to udf_disk_stamp_to_time
  fs: nfs: get rid of memcpys for inode times
  ceph: make inode time prints to be long long
  lustre: Use long long type to print inode time
  fs: add timespec64_truncate()
 2018-06-15 07:31:07 +09:00
Linus Torvalds
4a189982e2 Merge branch 'work.aio' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 
Pull aio iopriority support from Al Viro:
 "The rest of aio stuff for this cycle - Adam's aio ioprio series"

* 'work.aio' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
  fs: aio ioprio use ioprio_check_cap ret val
  fs: aio ioprio add explicit block layer dependence
  fs: iomap dio set bio prio from kiocb prio
  fs: blkdev set bio prio from kiocb prio
  fs: Add aio iopriority support
  fs: Convert kiocb rw_hint from enum to u16
  block: add ioprio_check_cap function
 2018-06-08 10:00:20 -07:00
Linus Torvalds
70f2ae1f00 Merge tag 'ovl-fixes-4.18' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/vfs 
Pull overlayfs fixes from Miklos Szeredi:
 "This contains a fix for the vfs_mkdir() issue discovered by Al, as
  well as other fixes and cleanups"

* tag 'ovl-fixes-4.18' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/vfs:
  ovl: use inode_insert5() to hash a newly created inode
  ovl: Pass argument to ovl_get_inode() in a structure
  vfs: factor out inode_insert5()
  ovl: clean up copy-up error paths
  ovl: return EIO on internal error
  ovl: make ovl_create_real() cope with vfs_mkdir() safely
  ovl: create helper ovl_create_temp()
  ovl: return dentry from ovl_create_real()
  ovl: struct cattr cleanups
  ovl: strip debug argument from ovl_do_ helpers
  ovl: remove WARN_ON() real inode attributes mismatch
  ovl: Kconfig documentation fixes
  ovl: update documentation for unionmount-testsuite
 2018-06-07 08:53:50 -07:00
Deepa Dinamani
95582b0083 vfs: change inode times to use struct timespec64 
struct timespec is not y2038 safe. Transition vfs to use
y2038 safe struct timespec64 instead.

The change was made with the help of the following cocinelle
script. This catches about 80% of the changes.
All the header file and logic changes are included in the
first 5 rules. The rest are trivial substitutions.
I avoid changing any of the function signatures or any other
filesystem specific data structures to keep the patch simple
for review.

The script can be a little shorter by combining different cases.
But, this version was sufficient for my usecase.

virtual patch

@ depends on patch @
identifier now;
@@
- struct timespec
+ struct timespec64
  current_time ( ... )
  {
- struct timespec now = current_kernel_time();
+ struct timespec64 now = current_kernel_time64();
  ...
- return timespec_trunc(
+ return timespec64_trunc(
  ... );
  }

@ depends on patch @
identifier xtime;
@@
 struct \( iattr \| inode \| kstat \) {
 ...
-       struct timespec xtime;
+       struct timespec64 xtime;
 ...
 }

@ depends on patch @
identifier t;
@@
 struct inode_operations {
 ...
int (*update_time) (...,
-       struct timespec t,
+       struct timespec64 t,
...);
 ...
 }

@ depends on patch @
identifier t;
identifier fn_update_time =~ "update_time$";
@@
 fn_update_time (...,
- struct timespec *t,
+ struct timespec64 *t,
 ...) { ... }

@ depends on patch @
identifier t;
@@
lease_get_mtime( ... ,
- struct timespec *t
+ struct timespec64 *t
  ) { ... }

@te depends on patch forall@
identifier ts;
local idexpression struct inode *inode_node;
identifier i_xtime =~ "^i_[acm]time$";
identifier ia_xtime =~ "^ia_[acm]time$";
identifier fn_update_time =~ "update_time$";
identifier fn;
expression e, E3;
local idexpression struct inode *node1;
local idexpression struct inode *node2;
local idexpression struct iattr *attr1;
local idexpression struct iattr *attr2;
local idexpression struct iattr attr;
identifier i_xtime1 =~ "^i_[acm]time$";
identifier i_xtime2 =~ "^i_[acm]time$";
identifier ia_xtime1 =~ "^ia_[acm]time$";
identifier ia_xtime2 =~ "^ia_[acm]time$";
@@
(
(
- struct timespec ts;
+ struct timespec64 ts;
|
- struct timespec ts = current_time(inode_node);
+ struct timespec64 ts = current_time(inode_node);
)

<+... when != ts
(
- timespec_equal(&inode_node->i_xtime, &ts)
+ timespec64_equal(&inode_node->i_xtime, &ts)
|
- timespec_equal(&ts, &inode_node->i_xtime)
+ timespec64_equal(&ts, &inode_node->i_xtime)
|
- timespec_compare(&inode_node->i_xtime, &ts)
+ timespec64_compare(&inode_node->i_xtime, &ts)
|
- timespec_compare(&ts, &inode_node->i_xtime)
+ timespec64_compare(&ts, &inode_node->i_xtime)
|
ts = current_time(e)
|
fn_update_time(..., &ts,...)
|
inode_node->i_xtime = ts
|
node1->i_xtime = ts
|
ts = inode_node->i_xtime
|
<+... attr1->ia_xtime ...+> = ts
|
ts = attr1->ia_xtime
|
ts.tv_sec
|
ts.tv_nsec
|
btrfs_set_stack_timespec_sec(..., ts.tv_sec)
|
btrfs_set_stack_timespec_nsec(..., ts.tv_nsec)
|
- ts = timespec64_to_timespec(
+ ts =
...
-)
|
- ts = ktime_to_timespec(
+ ts = ktime_to_timespec64(
...)
|
- ts = E3
+ ts = timespec_to_timespec64(E3)
|
- ktime_get_real_ts(&ts)
+ ktime_get_real_ts64(&ts)
|
fn(...,
- ts
+ timespec64_to_timespec(ts)
,...)
)
...+>
(
<... when != ts
- return ts;
+ return timespec64_to_timespec(ts);
...>
)
|
- timespec_equal(&node1->i_xtime1, &node2->i_xtime2)
+ timespec64_equal(&node1->i_xtime2, &node2->i_xtime2)
|
- timespec_equal(&node1->i_xtime1, &attr2->ia_xtime2)
+ timespec64_equal(&node1->i_xtime2, &attr2->ia_xtime2)
|
- timespec_compare(&node1->i_xtime1, &node2->i_xtime2)
+ timespec64_compare(&node1->i_xtime1, &node2->i_xtime2)
|
node1->i_xtime1 =
- timespec_trunc(attr1->ia_xtime1,
+ timespec64_trunc(attr1->ia_xtime1,
...)
|
- attr1->ia_xtime1 = timespec_trunc(attr2->ia_xtime2,
+ attr1->ia_xtime1 =  timespec64_trunc(attr2->ia_xtime2,
...)
|
- ktime_get_real_ts(&attr1->ia_xtime1)
+ ktime_get_real_ts64(&attr1->ia_xtime1)
|
- ktime_get_real_ts(&attr.ia_xtime1)
+ ktime_get_real_ts64(&attr.ia_xtime1)
)

@ depends on patch @
struct inode *node;
struct iattr *attr;
identifier fn;
identifier i_xtime =~ "^i_[acm]time$";
identifier ia_xtime =~ "^ia_[acm]time$";
expression e;
@@
(
- fn(node->i_xtime);
+ fn(timespec64_to_timespec(node->i_xtime));
|
 fn(...,
- node->i_xtime);
+ timespec64_to_timespec(node->i_xtime));
|
- e = fn(attr->ia_xtime);
+ e = fn(timespec64_to_timespec(attr->ia_xtime));
)

@ depends on patch forall @
struct inode *node;
struct iattr *attr;
identifier i_xtime =~ "^i_[acm]time$";
identifier ia_xtime =~ "^ia_[acm]time$";
identifier fn;
@@
{
+ struct timespec ts;
<+...
(
+ ts = timespec64_to_timespec(node->i_xtime);
fn (...,
- &node->i_xtime,
+ &ts,
...);
|
+ ts = timespec64_to_timespec(attr->ia_xtime);
fn (...,
- &attr->ia_xtime,
+ &ts,
...);
)
...+>
}

@ depends on patch forall @
struct inode *node;
struct iattr *attr;
struct kstat *stat;
identifier ia_xtime =~ "^ia_[acm]time$";
identifier i_xtime =~ "^i_[acm]time$";
identifier xtime =~ "^[acm]time$";
identifier fn, ret;
@@
{
+ struct timespec ts;
<+...
(
+ ts = timespec64_to_timespec(node->i_xtime);
ret = fn (...,
- &node->i_xtime,
+ &ts,
...);
|
+ ts = timespec64_to_timespec(node->i_xtime);
ret = fn (...,
- &node->i_xtime);
+ &ts);
|
+ ts = timespec64_to_timespec(attr->ia_xtime);
ret = fn (...,
- &attr->ia_xtime,
+ &ts,
...);
|
+ ts = timespec64_to_timespec(attr->ia_xtime);
ret = fn (...,
- &attr->ia_xtime);
+ &ts);
|
+ ts = timespec64_to_timespec(stat->xtime);
ret = fn (...,
- &stat->xtime);
+ &ts);
)
...+>
}

@ depends on patch @
struct inode *node;
struct inode *node2;
identifier i_xtime1 =~ "^i_[acm]time$";
identifier i_xtime2 =~ "^i_[acm]time$";
identifier i_xtime3 =~ "^i_[acm]time$";
struct iattr *attrp;
struct iattr *attrp2;
struct iattr attr ;
identifier ia_xtime1 =~ "^ia_[acm]time$";
identifier ia_xtime2 =~ "^ia_[acm]time$";
struct kstat *stat;
struct kstat stat1;
struct timespec64 ts;
identifier xtime =~ "^[acmb]time$";
expression e;
@@
(
( node->i_xtime2 \| attrp->ia_xtime2 \| attr.ia_xtime2 \) = node->i_xtime1  ;
|
 node->i_xtime2 = \( node2->i_xtime1 \| timespec64_trunc(...) \);
|
 node->i_xtime2 = node->i_xtime1 = node->i_xtime3 = \(ts \| current_time(...) \);
|
 node->i_xtime1 = node->i_xtime3 = \(ts \| current_time(...) \);
|
 stat->xtime = node2->i_xtime1;
|
 stat1.xtime = node2->i_xtime1;
|
( node->i_xtime2 \| attrp->ia_xtime2 \) = attrp->ia_xtime1  ;
|
( attrp->ia_xtime1 \| attr.ia_xtime1 \) = attrp2->ia_xtime2;
|
- e = node->i_xtime1;
+ e = timespec64_to_timespec( node->i_xtime1 );
|
- e = attrp->ia_xtime1;
+ e = timespec64_to_timespec( attrp->ia_xtime1 );
|
node->i_xtime1 = current_time(...);
|
 node->i_xtime2 = node->i_xtime1 = node->i_xtime3 =
- e;
+ timespec_to_timespec64(e);
|
 node->i_xtime1 = node->i_xtime3 =
- e;
+ timespec_to_timespec64(e);
|
- node->i_xtime1 = e;
+ node->i_xtime1 = timespec_to_timespec64(e);
)

Signed-off-by: Deepa Dinamani <deepa.kernel@gmail.com>
Cc: <anton@tuxera.com>
Cc: <balbi@kernel.org>
Cc: <bfields@fieldses.org>
Cc: <darrick.wong@oracle.com>
Cc: <dhowells@redhat.com>
Cc: <dsterba@suse.com>
Cc: <dwmw2@infradead.org>
Cc: <hch@lst.de>
Cc: <hirofumi@mail.parknet.co.jp>
Cc: <hubcap@omnibond.com>
Cc: <jack@suse.com>
Cc: <jaegeuk@kernel.org>
Cc: <jaharkes@cs.cmu.edu>
Cc: <jslaby@suse.com>
Cc: <keescook@chromium.org>
Cc: <mark@fasheh.com>
Cc: <miklos@szeredi.hu>
Cc: <nico@linaro.org>
Cc: <reiserfs-devel@vger.kernel.org>
Cc: <richard@nod.at>
Cc: <sage@redhat.com>
Cc: <sfrench@samba.org>
Cc: <swhiteho@redhat.com>
Cc: <tj@kernel.org>
Cc: <trond.myklebust@primarydata.com>
Cc: <tytso@mit.edu>
Cc: <viro@zeniv.linux.org.uk>
 2018-06-05 16:57:31 -07:00
Linus Torvalds
fd59ccc530 Merge tag 'fscrypt_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/fscrypt 
Pull fscrypt updates from Ted Ts'o:
 "Add bunch of cleanups, and add support for the Speck128/256
  algorithms.

  Yes, Speck is contrversial, but the intention is to use them only for
  the lowest end Android devices, where the alternative *really* is no
  encryption at all for data stored at rest"

* tag 'fscrypt_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/fscrypt:
  fscrypt: log the crypto algorithm implementations
  fscrypt: add Speck128/256 support
  fscrypt: only derive the needed portion of the key
  fscrypt: separate key lookup from key derivation
  fscrypt: use a common logging function
  fscrypt: remove internal key size constants
  fscrypt: remove unnecessary check for non-logon key type
  fscrypt: make fscrypt_operations.max_namelen an integer
  fscrypt: drop empty name check from fname_decrypt()
  fscrypt: drop max_namelen check from fname_decrypt()
  fscrypt: don't special-case EOPNOTSUPP from fscrypt_get_encryption_info()
  fscrypt: don't clear flags on crypto transform
  fscrypt: remove stale comment from fscrypt_d_revalidate()
  fscrypt: remove error messages for skcipher_request_alloc() failure
  fscrypt: remove unnecessary NULL check when allocating skcipher
  fscrypt: clean up after fscrypt_prepare_lookup() conversions
  fs, fscrypt: only define ->s_cop when FS_ENCRYPTION is enabled
  fscrypt: use unbound workqueue for decryption
 2018-06-05 15:15:32 -07:00
Linus Torvalds
1434763ca5 Merge tag 'ext4_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4 
Pull ext4 updates from Ted Ts'o:
 "A lot of cleanups and bug fixes, especially dealing with corrupted
  file systems"

* tag 'ext4_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4: (23 commits)
  ext4: fix fencepost error in check for inode count overflow during resize
  ext4: correctly handle a zero-length xattr with a non-zero e_value_offs
  ext4: bubble errors from ext4_find_inline_data_nolock() up to ext4_iget()
  ext4: do not allow external inodes for inline data
  ext4: report delalloc reserve as non-free in statfs for project quota
  ext4: remove NULL check before calling kmem_cache_destroy()
  jbd2: remove NULL check before calling kmem_cache_destroy()
  jbd2: remove bunch of empty lines with jbd2 debug
  ext4: handle errors on ext4_commit_super
  ext4: do not update s_last_mounted of a frozen fs
  ext4: factor out helper ext4_sample_last_mounted()
  vfs: add the sb_start_intwrite_trylock() helper
  ext4: update mtime in ext4_punch_hole even if no blocks are released
  ext4: add verifier check for symlink with append/immutable flags
  fs: ext4: add new return type vm_fault_t
  ext4: fix hole length detection in ext4_ind_map_blocks()
  ext4: mark block bitmap corrupted when found
  ext4: mark inode bitmap corrupted when found
  ext4: add new ext4_mark_group_bitmap_corrupted() helper
  ext4: fix wrong return value in ext4_read_inode_bitmap()
  ...
 2018-06-05 12:49:17 -07:00
Linus Torvalds
408afb8d78 Merge branch 'work.aio-1' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 
Pull aio updates from Al Viro:
 "Majority of AIO stuff this cycle. aio-fsync and aio-poll, mostly.

  The only thing I'm holding back for a day or so is Adam's aio ioprio -
  his last-minute fixup is trivial (missing stub in !CONFIG_BLOCK case),
  but let it sit in -next for decency sake..."

* 'work.aio-1' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (46 commits)
  aio: sanitize the limit checking in io_submit(2)
  aio: fold do_io_submit() into callers
  aio: shift copyin of iocb into io_submit_one()
  aio_read_events_ring(): make a bit more readable
  aio: all callers of aio_{read,write,fsync,poll} treat 0 and -EIOCBQUEUED the same way
  aio: take list removal to (some) callers of aio_complete()
  aio: add missing break for the IOCB_CMD_FDSYNC case
  random: convert to ->poll_mask
  timerfd: convert to ->poll_mask
  eventfd: switch to ->poll_mask
  pipe: convert to ->poll_mask
  crypto: af_alg: convert to ->poll_mask
  net/rxrpc: convert to ->poll_mask
  net/iucv: convert to ->poll_mask
  net/phonet: convert to ->poll_mask
  net/nfc: convert to ->poll_mask
  net/caif: convert to ->poll_mask
  net/bluetooth: convert to ->poll_mask
  net/sctp: convert to ->poll_mask
  net/tipc: convert to ->poll_mask
  ...
 2018-06-04 13:57:43 -07:00
Linus Torvalds
9214407d12 Merge tag 'locks-v4.18-1' of git://git.kernel.org/pub/scm/linux/kernel/git/jlayton/linux 
Pull fasync fix from Jeff Layton:
 "Just a single fix for a deadlock in the fasync handling code that
  Kirill observed while testing.

  The fix is to change the fa_lock to be rwlock_t, and use a read lock
  in kill_fasync_rcu"

* tag 'locks-v4.18-1' of git://git.kernel.org/pub/scm/linux/kernel/git/jlayton/linux:
  fasync: Fix deadlock between task-context and interrupt-context kill_fasync()
 2018-06-04 13:05:02 -07:00