Commit Graph

133 Commits

Author SHA1 Message Date
Srinivasarao P
f7e8bdc457 Merge android-4.14-stable.198 (a008686) into msm-4.14
* refs/heads/tmp-a008686:
  Linux 4.14.198
  net: disable netpoll on fresh napis
  tipc: fix shutdown() of connectionless socket
  sctp: not disable bh in the whole sctp_get_port_local()
  net: usb: dm9601: Add USB ID of Keenetic Plus DSL
  netlabel: fix problems with mapping removal
  bnxt: don't enable NAPI until rings are ready
  vfio/pci: Fix SR-IOV VF handling with MMIO blocking
  vfio-pci: Invalidate mmaps and block MMIO access on disabled memory
  vfio-pci: Fault mmaps to enable vma tracking
  vfio/type1: Support faulting PFNMAP vmas
  block: ensure bdi->io_pages is always initialized
  ALSA; firewire-tascam: exclude Tascam FE-8 from detection
  Linux 4.14.197
  net: usb: Fix uninit-was-stored issue in asix_read_phy_addr()
  cfg80211: regulatory: reject invalid hints
  mm/hugetlb: fix a race between hugetlb sysctl handlers
  checkpatch: fix the usage of capture group ( ... )
  KVM: arm64: Set HCR_EL2.PTW to prevent AT taking synchronous exception
  KVM: arm64: Survive synchronous exceptions caused by AT instructions
  KVM: arm64: Defer guest entry when an asynchronous exception is pending
  KVM: arm64: Add kvm_extable for vaxorcism code
  mm: slub: fix conversion of freelist_corrupted()
  dm thin metadata: Avoid returning cmd->bm wild pointer on error
  dm cache metadata: Avoid returning cmd->bm wild pointer on error
  libata: implement ATA_HORKAGE_MAX_TRIM_128M and apply to Sandisks
  block: Move SECTOR_SIZE and SECTOR_SHIFT definitions into <linux/blkdev.h>
  block: allow for_each_bvec to support zero len bvec
  affs: fix basic permission bits to actually work
  ALSA: firewire-digi00x: exclude Avid Adrenaline from detection
  ALSA: hda/hdmi: always check pin power status in i915 pin fixup
  ALSA: pcm: oss: Remove superfluous WARN_ON() for mulaw sanity check
  ALSA: ca0106: fix error code handling
  usb: qmi_wwan: add D-Link DWM-222 A2 device ID
  net: usb: qmi_wwan: add Telit 0x1050 composition
  btrfs: fix potential deadlock in the search ioctl
  uaccess: Add non-pagefault user-space write function
  uaccess: Add non-pagefault user-space read functions
  btrfs: set the lockdep class for log tree extent buffers
  btrfs: Remove extraneous extent_buffer_get from tree_mod_log_rewind
  btrfs: Remove redundant extent_buffer_get in get_old_root
  btrfs: drop path before adding new uuid tree entry
  include/linux/log2.h: add missing () around n in roundup_pow_of_two()
  thermal: ti-soc-thermal: Fix bogus thermal shutdowns for omap4430
  iommu/vt-d: Serialize IOMMU GCMD register modifications
  tg3: Fix soft lockup when tg3_reset_task() fails.
  fix regression in "epoll: Keep a reference on files added to the check list"
  net: ethernet: mlx4: Fix memory allocation in mlx4_buddy_init()
  perf tools: Correct SNOOPX field offset
  nvmet-fc: Fix a missed _irqsave version of spin_lock in 'nvmet_fc_fod_op_done()'
  bnxt_en: Fix PCI AER error recovery flow
  bnxt_en: Check for zero dir entries in NVRAM.
  gtp: add GTPA_LINK info to msg sent to userspace
  dmaengine: pl330: Fix burst length if burst size is smaller than bus width
  net: arc_emac: Fix memleak in arc_mdio_probe
  ravb: Fixed to be able to unload modules
  net: systemport: Fix memleak in bcm_sysport_probe
  net: hns: Fix memleak in hns_nic_dev_probe
  netfilter: nf_tables: fix destination register zeroing
  netfilter: nf_tables: incorrect enum nft_list_attributes definition
  netfilter: nf_tables: add NFTA_SET_USERDATA if not null
  MIPS: BMIPS: Also call bmips_cpu_setup() for secondary cores
  MIPS: mm: BMIPS5000 has inclusive physical caches
  dmaengine: at_hdmac: check return value of of_find_device_by_node() in at_dma_xlate()
  batman-adv: bla: use netif_rx_ni when not in interrupt context
  batman-adv: Fix own OGM check in aggregated OGMs
  batman-adv: Avoid uninitialized chaddr when handling DHCP
  dmaengine: of-dma: Fix of_dma_router_xlate's of_dma_xlate handling
  xen/xenbus: Fix granting of vmalloc'd memory
  s390: don't trace preemption in percpu macros
  cpuidle: Fixup IRQ state
  ceph: don't allow setlease on cephfs
  nvmet: Disable keep-alive timer when kato is cleared to 0h
  hwmon: (applesmc) check status earlier.
  drm/msm: add shutdown support for display platform_driver
  perf record/stat: Explicitly call out event modifiers in the documentation
  HID: core: Sanitize event code and type when mapping input
  HID: core: Correctly handle ReportSize being zero
  Linux 4.14.196
  ALSA: usb-audio: Update documentation comment for MS2109 quirk
  HID: hiddev: Fix slab-out-of-bounds write in hiddev_ioctl_usage()
  tpm: Unify the mismatching TPM space buffer sizes
  btrfs: check the right error variable in btrfs_del_dir_entries_in_log
  usb: storage: Add unusual_uas entry for Sony PSZ drives
  USB: cdc-acm: rework notification_buffer resizing
  USB: gadget: u_f: Unbreak offset calculation in VLAs
  USB: gadget: f_ncm: add bounds checks to ncm_unwrap_ntb()
  USB: gadget: u_f: add overflow checks to VLA macros
  overflow.h: Add allocation size calculation helpers
  usb: host: ohci-exynos: Fix error handling in exynos_ohci_probe()
  USB: Ignore UAS for JMicron JMS567 ATA/ATAPI Bridge
  USB: quirks: Add no-lpm quirk for another Raydium touchscreen
  usb: uas: Add quirk for PNY Pro Elite
  USB: yurex: Fix bad gfp argument
  drm/amdgpu: Fix buffer overflow in INFO ioctl
  device property: Fix the secondary firmware node handling in set_primary_fwnode()
  PM: sleep: core: Fix the handling of pending runtime resume requests
  xhci: Do warm-reset when both CAS and XDEV_RESUME are set
  XEN uses irqdesc::irq_data_common::handler_data to store a per interrupt XEN data pointer which contains XEN specific information.
  writeback: Fix sync livelock due to b_dirty_time processing
  writeback: Avoid skipping inode writeback
  writeback: Protect inode->i_io_list with inode->i_lock
  serial: 8250: change lock order in serial8250_do_startup()
  serial: 8250_exar: Fix number of ports for Commtech PCIe cards
  serial: pl011: Don't leak amba_ports entry on driver register error
  serial: pl011: Fix oops on -EPROBE_DEFER
  serial: samsung: Removes the IRQ not found warning
  vt_ioctl: change VT_RESIZEX ioctl to check for error return from vc_resize()
  vt: defer kfree() of vc_screenbuf in vc_do_resize()
  USB: lvtest: return proper error code in probe
  fbcon: prevent user font height or width change from causing potential out-of-bounds access
  btrfs: fix space cache memory leak after transaction abort
  HID: i2c-hid: Always sleep 60ms after I2C_HID_PWR_ON commands
  powerpc/perf: Fix soft lockups due to missed interrupt accounting
  net: gianfar: Add of_node_put() before goto statement
  scsi: ufs: Clean up completed request without interrupt notification
  scsi: ufs: Improve interrupt handling for shared interrupts
  scsi: ufs: Fix possible infinite loop in ufshcd_hold
  s390/cio: add cond_resched() in the slow_eval_known_fn() loop
  spi: stm32: fix stm32_spi_prepare_mbr in case of odd clk_rate
  fs: prevent BUG_ON in submit_bh_wbc()
  jbd2: abort journal if free a async write error metadata buffer
  ext4: don't BUG on inconsistent journal feature
  jbd2: make sure jh have b_transaction set in refile/unfile_buffer
  usb: gadget: f_tcm: Fix some resource leaks in some error paths
  i2c: rcar: in slave mode, clear NACK earlier
  null_blk: fix passing of REQ_FUA flag in null_handle_rq
  nvme-fc: Fix wrong return value in __nvme_fc_init_request()
  media: gpio-ir-tx: improve precision of transmitted signal due to scheduling
  Revert "ath10k: fix DMA related firmware crashes on multiple devices"
  efi: provide empty efi_enter_virtual_mode implementation
  USB: sisusbvga: Fix a potential UB casued by left shifting a negative value
  powerpc/spufs: add CONFIG_COREDUMP dependency
  KVM: arm64: Fix symbol dependency in __hyp_call_panic_nvhe
  media: davinci: vpif_capture: fix potential double free
  EDAC/ie31200: Fallback if host bridge device is already initialized
  scsi: fcoe: Memory leak fix in fcoe_sysfs_fcf_del()
  ceph: fix potential mdsc use-after-free crash
  scsi: iscsi: Do not put host in iscsi_set_flashnode_param()
  locking/lockdep: Fix overflow in presentation of average lock-time
  drm/nouveau: Fix reference count leak in nouveau_connector_detect
  drm/nouveau/drm/noveau: fix reference count leak in nouveau_fbcon_open
  f2fs: fix use-after-free issue
  cec-api: prevent leaking memory through hole in structure
  mips/vdso: Fix resource leaks in genvdso.c
  rtlwifi: rtl8192cu: Prevent leaking urb
  PCI: Fix pci_create_slot() reference count leak
  omapfb: fix multiple reference count leaks due to pm_runtime_get_sync
  selftests/powerpc: Purge extra count_pmc() calls of ebb selftests
  scsi: lpfc: Fix shost refcount mismatch when deleting vport
  drm/amdgpu/display: fix ref count leak when pm_runtime_get_sync fails
  drm/amdgpu: fix ref count leak in amdgpu_display_crtc_set_config
  drm/amd/display: fix ref count leak in amdgpu_drm_ioctl
  drm/amdgpu: fix ref count leak in amdgpu_driver_open_kms
  drm/radeon: fix multiple reference count leak
  drm/amdkfd: Fix reference count leaks.
  iommu/iova: Don't BUG on invalid PFNs
  scsi: target: tcmu: Fix crash on ARM during cmd completion
  blktrace: ensure our debugfs dir exists
  media: pci: ttpci: av7110: fix possible buffer overflow caused by bad DMA value in debiirq()
  powerpc/xive: Ignore kmemleak false positives
  arm64: dts: qcom: msm8916: Pull down PDM GPIOs during sleep
  mfd: intel-lpss: Add Intel Emmitsburg PCH PCI IDs
  ASoC: tegra: Fix reference count leaks.
  ALSA: pci: delete repeated words in comments
  gre6: Fix reception with IP6_TNL_F_RCV_DSCP_COPY
  ipvlan: fix device features
  tipc: fix uninit skb->data in tipc_nl_compat_dumpit()
  net: Fix potential wrong skb->protocol in skb_vlan_untag()
  powerpc/64s: Don't init FSCR_DSCR in __init_FSCR()
  ANDROID: cuttlefish_defconfig: initialize locals with zeroes
  BACKPORT: security: allow using Clang's zero initialization for stack variables
  Revert "binder: Prevent context manager from incrementing ref 0"
  Linux 4.14.195
  KVM: arm/arm64: Don't reschedule in unmap_stage2_range()
  clk: Evict unregistered clks from parent caches
  xen: don't reschedule in preemption off sections
  mm/hugetlb: fix calculation of adjust_range_if_pmd_sharing_possible
  do_epoll_ctl(): clean the failure exits up a bit
  epoll: Keep a reference on files added to the check list
  powerpc/pseries: Do not initiate shutdown when system is running on UPS
  net: dsa: b53: check for timeout
  hv_netvsc: Fix the queue_mapping in netvsc_vf_xmit()
  bonding: fix active-backup failover for current ARP slave
  vfio/type1: Add proper error unwind for vfio_iommu_replay()
  ASoC: intel: Fix memleak in sst_media_open
  ASoC: msm8916-wcd-analog: fix register Interrupt offset
  bonding: fix a potential double-unregister
  bonding: show saner speed for broadcast mode
  net: fec: correct the error path for regulator disable in probe
  i40e: Fix crash during removing i40e driver
  i40e: Set RX_ONLY mode for unicast promiscuous on VLAN
  ext4: fix potential negative array index in do_split()
  alpha: fix annotation of io{read,write}{16,32}be()
  xfs: Fix UBSAN null-ptr-deref in xfs_sysfs_init
  virtio_ring: Avoid loop when vq is broken in virtqueue_poll
  scsi: libfc: Free skb in fc_disc_gpn_id_resp() for valid cases
  cpufreq: intel_pstate: Fix cpuinfo_max_freq when MSR_TURBO_RATIO_LIMIT is 0
  jffs2: fix UAF problem
  xfs: fix inode quota reservation checks
  m68knommu: fix overwriting of bits in ColdFire V3 cache control
  Input: psmouse - add a newline when printing 'proto' by sysfs
  media: vpss: clean up resources in init
  rtc: goldfish: Enable interrupt in set_alarm() when necessary
  media: budget-core: Improve exception handling in budget_register()
  scsi: ufs: Add DELAY_BEFORE_LPM quirk for Micron devices
  spi: Prevent adding devices below an unregistering controller
  jbd2: add the missing unlock_buffer() in the error path of jbd2_write_superblock()
  ext4: fix checking of directory entry validity for inline directories
  mm, page_alloc: fix core hung in free_pcppages_bulk()
  mm: include CMA pages in lowmem_reserve at boot
  kernel/relay.c: fix memleak on destroy relay channel
  romfs: fix uninitialized memory leak in romfs_dev_read()
  btrfs: sysfs: use NOFS for device creation
  btrfs: inode: fix NULL pointer dereference if inode doesn't need compression
  btrfs: Move free_pages_out label in inline extent handling branch in compress_file_range
  btrfs: don't show full path of bind mounts in subvol=
  btrfs: export helpers for subvolume name/id resolution
  powerpc: Allow 4224 bytes of stack expansion for the signal frame
  powerpc/mm: Only read faulting instruction when necessary in do_page_fault()
  khugepaged: adjust VM_BUG_ON_MM() in __khugepaged_enter()
  khugepaged: khugepaged_test_exit() check mmget_still_valid()
  perf probe: Fix memory leakage when the probe point is not found
  drm/vgem: Replace opencoded version of drm_gem_dumb_map_offset()
  ANDROID: virtio_gpu.h: move map/unmap to 3d group
  Linux 4.14.194
  dm cache: remove all obsolete writethrough-specific code
  dm cache: submit writethrough writes in parallel to origin and cache
  dm cache: pass cache structure to mode functions
  genirq/affinity: Make affinity setting if activated opt-in
  genirq/affinity: Handle affinity setting on inactive interrupts correctly
  khugepaged: retract_page_tables() remember to test exit
  sh: landisk: Add missing initialization of sh_io_port_base
  tools build feature: Quote CC and CXX for their arguments
  perf bench mem: Always memset source before memcpy
  ALSA: echoaudio: Fix potential Oops in snd_echo_resume()
  mfd: dln2: Run event handler loop under spinlock
  test_kmod: avoid potential double free in trigger_config_run_type()
  fs/ufs: avoid potential u32 multiplication overflow
  nfs: Fix getxattr kernel panic and memory overflow
  net: qcom/emac: add missed clk_disable_unprepare in error path of emac_clks_phase1_init
  drm/vmwgfx: Fix two list_for_each loop exit tests
  drm/vmwgfx: Use correct vmw_legacy_display_unit pointer
  Input: sentelic - fix error return when fsp_reg_write fails
  i2c: rcar: avoid race when unregistering slave
  tools build feature: Use CC and CXX from parent
  pwm: bcm-iproc: handle clk_get_rate() return
  clk: clk-atlas6: fix return value check in atlas6_clk_init()
  i2c: rcar: slave: only send STOP event when we have been addressed
  iommu/vt-d: Enforce PASID devTLB field mask
  iommu/omap: Check for failure of a call to omap_iommu_dump_ctx
  dm rq: don't call blk_mq_queue_stopped() in dm_stop_queue()
  gpu: ipu-v3: image-convert: Combine rotate/no-rotate irq handlers
  USB: serial: ftdi_sio: clean up receive processing
  USB: serial: ftdi_sio: make process-packet buffer unsigned
  RDMA/ipoib: Return void from ipoib_ib_dev_stop()
  mfd: arizona: Ensure 32k clock is put on driver unbind and error
  drm/imx: imx-ldb: Disable both channels for split mode in enc->disable()
  perf intel-pt: Fix FUP packet state
  pseries: Fix 64 bit logical memory block panic
  watchdog: f71808e_wdt: clear watchdog timeout occurred flag
  watchdog: f71808e_wdt: remove use of wrong watchdog_info option
  watchdog: f71808e_wdt: indicate WDIOF_CARDRESET support in watchdog_info.options
  tracing: Use trace_sched_process_free() instead of exit() for pid tracing
  tracing/hwlat: Honor the tracing_cpumask
  kprobes: Fix NULL pointer dereference at kprobe_ftrace_handler
  ftrace: Setup correct FTRACE_FL_REGS flags for module
  ocfs2: change slot number type s16 to u16
  ext2: fix missing percpu_counter_inc
  MIPS: CPU#0 is not hotpluggable
  mac80211: fix misplaced while instead of if
  bcache: allocate meta data pages as compound pages
  md/raid5: Fix Force reconstruct-write io stuck in degraded raid5
  net/compat: Add missing sock updates for SCM_RIGHTS
  net: stmmac: dwmac1000: provide multicast filter fallback
  net: ethernet: stmmac: Disable hardware multicast filter
  powerpc: Fix circular dependency between percpu.h and mmu.h
  xtensa: fix xtensa_pmu_setup prototype
  iio: dac: ad5592r: fix unbalanced mutex unlocks in ad5592r_read_raw()
  dt-bindings: iio: io-channel-mux: Fix compatible string in example code
  btrfs: fix memory leaks after failure to lookup checksums during inode logging
  btrfs: only search for left_info if there is no right_info in try_merge_free_space
  btrfs: don't allocate anonymous block device for user invisible roots
  PCI: hotplug: ACPI: Fix context refcounting in acpiphp_grab_context()
  smb3: warn on confusing error scenario with sec=krb5
  net: initialize fastreuse on inet_inherit_port
  xen/balloon: make the balloon wait interruptible
  xen/balloon: fix accounting in alloc_xenballooned_pages error path
  irqdomain/treewide: Free firmware node after domain removal
  ARM: 8992/1: Fix unwind_frame for clang-built kernels
  parisc: mask out enable and reserved bits from sba imask
  parisc: Implement __smp_store_release and __smp_load_acquire barriers
  mtd: rawnand: qcom: avoid write to unavailable register
  spi: spidev: Align buffers for DMA
  9p: Fix memory leak in v9fs_mount
  ALSA: usb-audio: work around streaming quirk for MacroSilicon MS2109
  fs/minix: reject too-large maximum file size
  fs/minix: don't allow getting deleted inodes
  fs/minix: check return value of sb_getblk()
  bitfield.h: don't compile-time validate _val in FIELD_FIT
  crypto: cpt - don't sleep of CRYPTO_TFM_REQ_MAY_SLEEP was not specified
  crypto: ccp - Fix use of merged scatterlists
  crypto: qat - fix double free in qat_uclo_create_batch_init_list
  ALSA: usb-audio: add quirk for Pioneer DDJ-RB
  ALSA: usb-audio: fix overeager device match for MacroSilicon MS2109
  ALSA: usb-audio: Creative USB X-Fi Pro SB1095 volume knob support
  USB: serial: cp210x: enable usb generic throttle/unthrottle
  USB: serial: cp210x: re-enable auto-RTS on open
  net: Set fput_needed iff FDPUT_FPUT is set
  net: refactor bind_bucket fastreuse into helper
  net/nfc/rawsock.c: add CAP_NET_RAW check.
  drivers/net/wan/lapbether: Added needed_headroom and a skb->len check
  af_packet: TPACKET_V3: fix fill status rwlock imbalance
  crypto: aesni - add compatibility with IAS
  x86/fsgsbase/64: Fix NULL deref in 86_fsgsbase_read_task
  pinctrl-single: fix pcs_parse_pinconf() return value
  dlm: Fix kobject memleak
  fsl/fman: fix eth hash table allocation
  fsl/fman: check dereferencing null pointer
  fsl/fman: fix unreachable code
  fsl/fman: fix dereference null return value
  fsl/fman: use 32-bit unsigned integer
  net: spider_net: Fix the size used in a 'dma_free_coherent()' call
  liquidio: Fix wrong return value in cn23xx_get_pf_num()
  net: ethernet: aquantia: Fix wrong return value
  tools, build: Propagate build failures from tools/build/Makefile.build
  wl1251: fix always return 0 error
  s390/qeth: don't process empty bridge port events
  selftests/powerpc: Fix online CPU selection
  PCI: Release IVRS table in AMD ACS quirk
  selftests/powerpc: Fix CPU affinity for child process
  Bluetooth: hci_serdev: Only unregister device if it was registered
  power: supply: check if calc_soc succeeded in pm860x_init_battery
  Smack: prevent underflow in smk_set_cipso()
  Smack: fix another vsscanf out of bounds
  net: dsa: mv88e6xxx: MV88E6097 does not support jumbo configuration
  scsi: mesh: Fix panic after host or bus reset
  usb: dwc2: Fix error path in gadget registration
  MIPS: OCTEON: add missing put_device() call in dwc3_octeon_device_init()
  coresight: tmc: Fix TMC mode read in tmc_read_unprepare_etb()
  thermal: ti-soc-thermal: Fix reversed condition in ti_thermal_expose_sensor()
  USB: serial: iuu_phoenix: fix led-activity helpers
  drm/imx: tve: fix regulator_disable error path
  PCI/ASPM: Add missing newline in sysfs 'policy'
  staging: rtl8192u: fix a dubious looking mask before a shift
  powerpc/vdso: Fix vdso cpu truncation
  mwifiex: Prevent memory corruption handling keys
  scsi: scsi_debug: Add check for sdebug_max_queue during module init
  drm/bridge: sil_sii8620: initialize return of sii8620_readb
  drm: panel: simple: Fix bpc for LG LB070WV8 panel
  leds: core: Flush scheduled work for system suspend
  PCI: Fix pci_cfg_wait queue locking problem
  xfs: fix reflink quota reservation accounting error
  media: exynos4-is: Add missed check for pinctrl_lookup_state()
  media: firewire: Using uninitialized values in node_probe()
  ipvs: allow connection reuse for unconfirmed conntrack
  scsi: eesox: Fix different dev_id between request_irq() and free_irq()
  scsi: powertec: Fix different dev_id between request_irq() and free_irq()
  drm/radeon: fix array out-of-bounds read and write issues
  cxl: Fix kobject memleak
  drm/mipi: use dcs write for mipi_dsi_dcs_set_tear_scanline
  scsi: cumana_2: Fix different dev_id between request_irq() and free_irq()
  ASoC: Intel: bxt_rt298: add missing .owner field
  media: omap3isp: Add missed v4l2_ctrl_handler_free() for preview_init_entities()
  leds: lm355x: avoid enum conversion warning
  drm/arm: fix unintentional integer overflow on left shift
  iio: improve IIO_CONCENTRATION channel type description
  video: pxafb: Fix the function used to balance a 'dma_alloc_coherent()' call
  console: newport_con: fix an issue about leak related system resources
  video: fbdev: sm712fb: fix an issue about iounmap for a wrong address
  agp/intel: Fix a memory leak on module initialisation failure
  ACPICA: Do not increment operation_region reference counts for field units
  bcache: fix super block seq numbers comparision in register_cache_set()
  dyndbg: fix a BUG_ON in ddebug_describe_flags
  usb: bdc: Halt controller on suspend
  bdc: Fix bug causing crash after multiple disconnects
  usb: gadget: net2280: fix memory leak on probe error handling paths
  gpu: host1x: debug: Fix multiple channels emitting messages simultaneously
  iwlegacy: Check the return value of pcie_capability_read_*()
  brcmfmac: set state of hanger slot to FREE when flushing PSQ
  brcmfmac: To fix Bss Info flag definition Bug
  mm/mmap.c: Add cond_resched() for exit_mmap() CPU stalls
  irqchip/irq-mtk-sysirq: Replace spinlock with raw_spinlock
  drm/debugfs: fix plain echo to connector "force" attribute
  drm/nouveau: fix multiple instances of reference count leaks
  arm64: dts: hisilicon: hikey: fixes to comply with adi, adv7533 DT binding
  md-cluster: fix wild pointer of unlock_all_bitmaps()
  video: fbdev: neofb: fix memory leak in neo_scan_monitor()
  drm/radeon: Fix reference count leaks caused by pm_runtime_get_sync
  fs/btrfs: Add cond_resched() for try_release_extent_mapping() stalls
  Bluetooth: add a mutex lock to avoid UAF in do_enale_set
  drm/tilcdc: fix leak & null ref in panel_connector_get_modes
  ARM: socfpga: PM: add missing put_device() call in socfpga_setup_ocram_self_refresh()
  spi: lantiq: fix: Rx overflow error in full duplex mode
  ARM: at91: pm: add missing put_device() call in at91_pm_sram_init()
  platform/x86: intel-vbtn: Fix return value check in check_acpi_dev()
  platform/x86: intel-hid: Fix return value check in check_acpi_dev()
  m68k: mac: Fix IOP status/control register writes
  m68k: mac: Don't send IOP message until channel is idle
  arm64: dts: exynos: Fix silent hang after boot on Espresso
  arm64: dts: qcom: msm8916: Replace invalid bias-pull-none property
  EDAC: Fix reference count leaks
  arm64: dts: rockchip: fix rk3399-puma gmac reset gpio
  arm64: dts: rockchip: fix rk3399-puma vcc5v0-host gpio
  sched: correct SD_flags returned by tl->sd_flags()
  x86/mce/inject: Fix a wrong assignment of i_mce.status
  cgroup: add missing skcd->no_refcnt check in cgroup_sk_clone()
  HID: input: Fix devices that return multiple bytes in battery report
  tracepoint: Mark __tracepoint_string's __used
  Smack: fix use-after-free in smk_write_relabel_self()
  rxrpc: Fix race between recvmsg and sendmsg on immediate call failure
  usb: hso: check for return value in hso_serial_common_create()
  selftests/net: relax cpu affinity requirement in msg_zerocopy test
  Revert "vxlan: fix tos value before xmit"
  openvswitch: Prevent kernel-infoleak in ovs_ct_put_key()
  net: gre: recompute gre csum for sctp over gre tunnels
  hv_netvsc: do not use VF device if link is down
  net: lan78xx: replace bogus endpoint lookup
  vxlan: Ensure FDB dump is performed under RCU
  net: ethernet: mtk_eth_soc: fix MTU warnings
  ipv6: fix memory leaks on IPV6_ADDRFORM path
  ipv4: Silence suspicious RCU usage warning
  xattr: break delegations in {set,remove}xattr
  Drivers: hv: vmbus: Ignore CHANNELMSG_TL_CONNECT_RESULT(23)
  tools lib traceevent: Fix memory leak in process_dynamic_array_len
  atm: fix atm_dev refcnt leaks in atmtcp_remove_persistent
  igb: reinit_locked() should be called with rtnl_lock
  cfg80211: check vendor command doit pointer before use
  i2c: slave: add sanity check when unregistering
  i2c: slave: improve sanity check when registering
  drm/nouveau/fbcon: zero-initialise the mode_cmd2 structure
  drm/nouveau/fbcon: fix module unload when fbcon init has failed for some reason
  net/9p: validate fds in p9_fd_open
  leds: 88pm860x: fix use-after-free on unbind
  leds: lm3533: fix use-after-free on unbind
  leds: da903x: fix use-after-free on unbind
  leds: wm831x-status: fix use-after-free on unbind
  mtd: properly check all write ioctls for permissions
  vgacon: Fix for missing check in scrollback handling
  binder: Prevent context manager from incrementing ref 0
  omapfb: dss: Fix max fclk divider for omap36xx
  Bluetooth: Prevent out-of-bounds read in hci_inquiry_result_with_rssi_evt()
  Bluetooth: Prevent out-of-bounds read in hci_inquiry_result_evt()
  Bluetooth: Fix slab-out-of-bounds read in hci_extended_inquiry_result_evt()
  staging: android: ashmem: Fix lockdep warning for write operation
  ALSA: seq: oss: Serialize ioctls
  usb: xhci: Fix ASMedia ASM1142 DMA addressing
  usb: xhci: define IDs for various ASMedia host controllers
  USB: iowarrior: fix up report size handling for some devices
  net/mlx5e: Don't support phys switch id if not in switchdev mode
  USB: serial: qcserial: add EM7305 QDL product ID
  ANDROID: tty: fix tty name overflow
  ANDROID: fix a bug in quota2
  ANDROID: Incremental fs: fix magic compatibility again
  Linux 4.14.193
  ARM: 8702/1: head-common.S: Clear lr before jumping to start_kernel()
  ext4: fix direct I/O read error
  random32: move the pseudo-random 32-bit definitions to prandom.h
  random32: remove net_rand_state from the latent entropy gcc plugin
  random: fix circular include dependency on arm64 after addition of percpu.h
  ARM: percpu.h: fix build error
  random32: update the net random state on interrupt and activity
  Revert "scsi: libsas: direct call probe and destruct"
  Linux 4.14.192
  x86/i8259: Use printk_deferred() to prevent deadlock
  KVM: LAPIC: Prevent setting the tscdeadline timer if the lapic is hw disabled
  xen-netfront: fix potential deadlock in xennet_remove()
  cxgb4: add missing release on skb in uld_send()
  x86/unwind/orc: Fix ORC for newly forked tasks
  Revert "i2c: cadence: Fix the hold bit setting"
  net: ethernet: ravb: exit if re-initialization fails in tx timeout
  parisc: add support for cmpxchg on u8 pointers
  nfc: s3fwrn5: add missing release on skb in s3fwrn5_recv_frame
  qed: Disable "MFW indication via attention" SPAM every 5 minutes
  usb: hso: Fix debug compile warning on sparc32
  arm64: csum: Fix handling of bad packets
  arm64/alternatives: move length validation inside the subsection
  mac80211: mesh: Free pending skb when destroying a mpath
  mac80211: mesh: Free ie data when leaving mesh
  bpf: Fix map leak in HASH_OF_MAPS map
  ibmvnic: Fix IRQ mapping disposal in error path
  mlxsw: core: Free EMAD transactions using kfree_rcu()
  mlxsw: core: Increase scope of RCU read-side critical section
  mlx4: disable device on shutdown
  net: lan78xx: fix transfer-buffer memory leak
  net: lan78xx: add missing endpoint sanity check
  sh: Fix validation of system call number
  selftests/net: rxtimestamp: fix clang issues for target arch PowerPC
  net/x25: Fix null-ptr-deref in x25_disconnect
  net/x25: Fix x25_neigh refcnt leak when x25 disconnect
  xfs: fix missed wakeup on l_flush_wait
  rds: Prevent kernel-infoleak in rds_notify_queue_get()
  x86, vmlinux.lds: Page-align end of ..page_aligned sections
  x86/build/lto: Fix truncated .bss with -fdata-sections
  9p/trans_fd: Fix concurrency del of req_list in p9_fd_cancelled/p9_read_work
  9p/trans_fd: abort p9_read_work if req status changed
  f2fs: check if file namelen exceeds max value
  f2fs: check memory boundary by insane namelen
  drm: hold gem reference until object is no longer accessed
  drm/amdgpu: Prevent kernel-infoleak in amdgpu_info_ioctl()
  ARM: 8986/1: hw_breakpoint: Don't invoke overflow handler on uaccess watchpoints
  wireless: Use offsetof instead of custom macro.
  PCI/ASPM: Disable ASPM on ASMedia ASM1083/1085 PCIe-to-PCI bridge
  x86/kvm: Be careful not to clear KVM_VCPU_FLUSH_TLB bit
  ath9k: release allocated buffer if timed out
  ath9k_htc: release allocated buffer if timed out
  iio: imu: adis16400: fix memory leak
  media: rc: prevent memory leak in cx23888_ir_probe
  crypto: ccp - Release all allocated memory if sha type is invalid
  net: phy: mdio-bcm-unimac: fix potential NULL dereference in unimac_mdio_probe()
  scsi: libsas: direct call probe and destruct
  Linux 4.14.191
  xfs: set format back to extents if xfs_bmap_extents_to_btree
  regmap: debugfs: check count when read regmap file
  mm/page_owner.c: remove drain_all_pages from init_early_allocated_pages
  tcp: allow at most one TLP probe per flight
  rtnetlink: Fix memory(net_device) leak when ->newlink fails
  ip6_gre: fix null-ptr-deref in ip6gre_init_net()
  AX.25: Prevent integer overflows in connect and sendmsg
  rxrpc: Fix sendmsg() returning EPIPE due to recvmsg() returning ENODATA
  net: udp: Fix wrong clean up for IS_UDPLITE macro
  net-sysfs: add a newline when printing 'tx_timeout' by sysfs
  drivers/net/wan/x25_asy: Fix to make it work
  dev: Defer free of skbs in flush_backlog
  AX.25: Prevent out-of-bounds read in ax25_sendmsg()
  AX.25: Fix out-of-bounds read in ax25_connect()

 Conflicts:
	drivers/clk/clk.c
	drivers/gpu/drm/msm/msm_drv.c
	drivers/hwtracing/coresight/coresight-tmc-etf.c

 Fixed build errors:
	drivers/md/dm-bow.c

Change-Id: Ia70efae18753ba5dbb3b67e00201e2c12eac5e70
Signed-off-by: Srinivasarao P <spathi@codeaurora.org>
2020-09-18 12:43:35 +05:30
Greg Kroah-Hartman
601bfacceb Merge 4.14.197 into android-4.14-stable
Changes in 4.14.197
	HID: core: Correctly handle ReportSize being zero
	HID: core: Sanitize event code and type when mapping input
	perf record/stat: Explicitly call out event modifiers in the documentation
	drm/msm: add shutdown support for display platform_driver
	hwmon: (applesmc) check status earlier.
	nvmet: Disable keep-alive timer when kato is cleared to 0h
	ceph: don't allow setlease on cephfs
	cpuidle: Fixup IRQ state
	s390: don't trace preemption in percpu macros
	xen/xenbus: Fix granting of vmalloc'd memory
	dmaengine: of-dma: Fix of_dma_router_xlate's of_dma_xlate handling
	batman-adv: Avoid uninitialized chaddr when handling DHCP
	batman-adv: Fix own OGM check in aggregated OGMs
	batman-adv: bla: use netif_rx_ni when not in interrupt context
	dmaengine: at_hdmac: check return value of of_find_device_by_node() in at_dma_xlate()
	MIPS: mm: BMIPS5000 has inclusive physical caches
	MIPS: BMIPS: Also call bmips_cpu_setup() for secondary cores
	netfilter: nf_tables: add NFTA_SET_USERDATA if not null
	netfilter: nf_tables: incorrect enum nft_list_attributes definition
	netfilter: nf_tables: fix destination register zeroing
	net: hns: Fix memleak in hns_nic_dev_probe
	net: systemport: Fix memleak in bcm_sysport_probe
	ravb: Fixed to be able to unload modules
	net: arc_emac: Fix memleak in arc_mdio_probe
	dmaengine: pl330: Fix burst length if burst size is smaller than bus width
	gtp: add GTPA_LINK info to msg sent to userspace
	bnxt_en: Check for zero dir entries in NVRAM.
	bnxt_en: Fix PCI AER error recovery flow
	nvmet-fc: Fix a missed _irqsave version of spin_lock in 'nvmet_fc_fod_op_done()'
	perf tools: Correct SNOOPX field offset
	net: ethernet: mlx4: Fix memory allocation in mlx4_buddy_init()
	fix regression in "epoll: Keep a reference on files added to the check list"
	tg3: Fix soft lockup when tg3_reset_task() fails.
	iommu/vt-d: Serialize IOMMU GCMD register modifications
	thermal: ti-soc-thermal: Fix bogus thermal shutdowns for omap4430
	include/linux/log2.h: add missing () around n in roundup_pow_of_two()
	btrfs: drop path before adding new uuid tree entry
	btrfs: Remove redundant extent_buffer_get in get_old_root
	btrfs: Remove extraneous extent_buffer_get from tree_mod_log_rewind
	btrfs: set the lockdep class for log tree extent buffers
	uaccess: Add non-pagefault user-space read functions
	uaccess: Add non-pagefault user-space write function
	btrfs: fix potential deadlock in the search ioctl
	net: usb: qmi_wwan: add Telit 0x1050 composition
	usb: qmi_wwan: add D-Link DWM-222 A2 device ID
	ALSA: ca0106: fix error code handling
	ALSA: pcm: oss: Remove superfluous WARN_ON() for mulaw sanity check
	ALSA: hda/hdmi: always check pin power status in i915 pin fixup
	ALSA: firewire-digi00x: exclude Avid Adrenaline from detection
	affs: fix basic permission bits to actually work
	block: allow for_each_bvec to support zero len bvec
	block: Move SECTOR_SIZE and SECTOR_SHIFT definitions into <linux/blkdev.h>
	libata: implement ATA_HORKAGE_MAX_TRIM_128M and apply to Sandisks
	dm cache metadata: Avoid returning cmd->bm wild pointer on error
	dm thin metadata: Avoid returning cmd->bm wild pointer on error
	mm: slub: fix conversion of freelist_corrupted()
	KVM: arm64: Add kvm_extable for vaxorcism code
	KVM: arm64: Defer guest entry when an asynchronous exception is pending
	KVM: arm64: Survive synchronous exceptions caused by AT instructions
	KVM: arm64: Set HCR_EL2.PTW to prevent AT taking synchronous exception
	checkpatch: fix the usage of capture group ( ... )
	mm/hugetlb: fix a race between hugetlb sysctl handlers
	cfg80211: regulatory: reject invalid hints
	net: usb: Fix uninit-was-stored issue in asix_read_phy_addr()
	Linux 4.14.197

Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I59da148f114d7f8fd84fc76c8178081ddaf26a49
2020-09-09 19:35:54 +02:00
Bart Van Assche
9f086cac51 block: Move SECTOR_SIZE and SECTOR_SHIFT definitions into <linux/blkdev.h>
commit 233bde21aa43516baa013ef7ac33f3427056db3e upstream.

It happens often while I'm preparing a patch for a block driver that
I'm wondering: is a definition of SECTOR_SIZE and/or SECTOR_SHIFT
available for this driver? Do I have to introduce definitions of these
constants before I can use these constants? To avoid this confusion,
move the existing definitions of SECTOR_SIZE and SECTOR_SHIFT into the
<linux/blkdev.h> header file such that these become available for all
block drivers. Make the SECTOR_SIZE definition in the uapi msdos_fs.h
header file conditional to avoid that including that header file after
<linux/blkdev.h> causes the compiler to complain about a SECTOR_SIZE
redefinition.

Note: the SECTOR_SIZE / SECTOR_SHIFT / SECTOR_BITS definitions have
not been removed from uapi header files nor from NAND drivers in
which these constants are used for another purpose than converting
block layer offsets and sizes into a number of sectors.

Cc: David S. Miller <davem@davemloft.net>
Cc: Mike Snitzer <snitzer@redhat.com>
Cc: Dan Williams <dan.j.williams@intel.com>
Cc: Minchan Kim <minchan@kernel.org>
Cc: Nitin Gupta <ngupta@vflare.org>
Reviewed-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Bart Van Assche <bart.vanassche@wdc.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-09-09 19:03:12 +02:00
Neeraj Soni
88205c5d99 Integrate the new file encryption framework
These changes integrate new file encryption framework to use new V2 encryption policies.

These changes were earlier reverted in 'commit 4211691d29 ("Reverting crypto and incrementalfs changes")',
as part of android-4.14.171 merge from Android common kernel. This patch attempts to bring them back
post validation.

commit a9a5450 ANDROID: dm: prevent default-key from being enabled without needed hooks
commit e1a94e6 ANDROID: dm: add dm-default-key target for metadata encryption
commit commit 232fd35 ANDROID: dm: enable may_passthrough_inline_crypto on some targets
commit 53bc059 ANDROID: dm: add support for passing through inline crypto support
commit aeed6db ANDROID: block: Introduce passthrough keyslot manager
commit 4f27c8b ANDROID: ext4, f2fs: enable direct I/O with inline encryption
commit c91db46 BACKPORT: FROMLIST: scsi: ufs: add program_key() variant op
commit f9a8e4a ANDROID: block: export symbols needed for modules to use inline crypto
commit 75fea5f ANDROID: block: fix some inline crypto bugs
commit 2871f73 ANDROID: fscrypt: add support for hardware-wrapped keys
commit bb5a657 ANDROID: block: add KSM op to derive software secret from wrapped key
commit d42ba87 ANDROID: block: provide key size as input to inline crypto APIs
commit 86646eb ANDROID: ufshcd-crypto: export cap find API
commit 83bc20e ANDROID: scsi: ufs-qcom: Enable BROKEN_CRYPTO quirk flag
commit c266a13 ANDROID: scsi: ufs: Add quirk bit for controllers that don't play well with inline crypto
commit ea09b99 ANDROID: cuttlefish_defconfig: Enable blk-crypto fallback
commit e12563c BACKPORT: FROMLIST: Update Inline Encryption from v5 to v6 of patch series
commit 8e8f55d ANDROID: scsi: ufs: UFS init should not require inline crypto
commit dae9899 ANDROID: scsi: ufs: UFS crypto variant operations API
commit a69516d ANDROID: cuttlefish_defconfig: enable inline encryption
commit b8f7b23 BACKPORT: FROMLIST: ext4: add inline encryption support
commit e64327f BACKPORT: FROMLIST: f2fs: add inline encryption support
commit a0dc8da BACKPORT: FROMLIST: fscrypt: add inline encryption support
commit 19c3c62 BACKPORT: FROMLIST: scsi: ufs: Add inline encryption support to UFS
commit f858a99 BACKPORT: FROMLIST: scsi: ufs: UFS crypto API
commit 011b834 BACKPORT: FROMLIST: scsi: ufs: UFS driver v2.1 spec crypto additions
commit ec0b569 BACKPORT: FROMLIST: block: blk-crypto for Inline Encryption
commit 760b328 ANDROID: block: Fix bio_crypt_should_process WARN_ON
commit 138adbb BACKPORT: FROMLIST: block: Add encryption context to struct bio
commit 66b5609 BACKPORT: FROMLIST: block: Keyslot Manager for Inline Encryption

Git-repo: https://android.googlesource.com/kernel/common/+/refs/heads/android-4.14-stable
Git-commit: a9a545067a
Git-commit: e1a94e6b17
Git-commit: 232fd353e4
Git-commit: 53bc059bc6
Git-commit: aeed6db424
Git-commit: 4f27c8b90b
Git-commit: c91db466b5
Git-commit: f9a8e4a5c5
Git-commit: 75fea5f605
Git-commit: 2871f73194
Git-commit: bb5a65771a
Git-commit: d42ba87e29
Git-commit: 86646ebb17
Git-commit: 83bc20ed4b
Git-commit: c266a1311e
Git-commit: ea09b9954c
Git-commit: e12563c18d
Git-commit: 8e8f55d1a7
Git-commit: dae9899044
Git-commit: a69516d091
Git-commit: b8f7b23674
Git-commit: e64327f571
Git-commit: a0dc8da519
Git-commit: 19c3c62836
Git-commit: f858a9981a
Git-commit: 011b8344c3
Git-commit: ec0b569b5c
Git-commit: 760b3283e8
Git-commit: 138adbbe5e
Git-commit: 66b5609826

Change-Id: I171d90de41185824e0c7515f3a3b43ab88f4e058
Signed-off-by: Neeraj Soni <neersoni@codeaurora.org>
2020-08-13 13:44:51 -07:00
Eric Biggers
53bc059bc6 ANDROID: dm: add support for passing through inline crypto support
Update the device-mapper core to support exposing the inline crypto
support of the underlying device(s) through the device-mapper device.

This works by creating a "passthrough keyslot manager" for the dm
device, which declares support for the set of (crypto_mode,
data_unit_size) combos which all the underlying devices support.  When a
supported combo is used, the bio cloning code handles cloning the crypto
context to the bios for all the underlying devices.  When an unsupported
combo is used, the blk-crypto fallback is used as usual.

Crypto support on each underlying device is ignored unless the
corresponding dm target opts into exposing it.  This is needed because
for inline crypto to semantically operate on the original bio, the data
must not be transformed by the dm target.  Thus, targets like dm-linear
can expose crypto support of the underlying device, but targets like
dm-crypt can't.  (dm-crypt could use inline crypto itself, though.)

When a key is evicted from the dm device, it is evicted from all
underlying devices.

Bug: 137270441
Bug: 147814592
Change-Id: If28b574f2e28268db5eb9f325d4cf8f96cb63e3f
Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Satya Tangirala <satyat@google.com>
2020-02-05 16:16:39 -08:00
Sandeep Patil
efe836537c Revert "CHROMIUM: dm: boot time specification of dm="
This reverts commit 0cc78aab28.

Bug: 129143048
Test: Boot cuttlefish from AOSP

Signed-off-by: Sandeep Patil <sspatil@android.com>
2019-04-10 17:23:32 -07:00
Sandeep Patil
71eb40b792 Revert "ANDROID: dm: do_mounts_dm: Update init/do_mounts_dm.c to the latest ChromiumOS version."
This reverts commit 834155c54d.

Bug: 129143048
Test: Boot cuttlefish

Signed-off-by: Sandeep Patil <sspatil@android.com>
2019-04-10 17:23:12 -07:00
Greg Kroah-Hartman
4344de2f79 Merge 4.14.108 into android-4.14
Changes in 4.14.108
	9p: use inode->i_lock to protect i_size_write() under 32-bit
	9p/net: fix memory leak in p9_client_create
	ASoC: fsl_esai: fix register setting issue in RIGHT_J mode
	iio: adc: exynos-adc: Fix NULL pointer exception on unbind
	stm class: Fix an endless loop in channel allocation
	crypto: caam - fixed handling of sg list
	crypto: ahash - fix another early termination in hash walk
	crypto: rockchip - fix scatterlist nents error
	crypto: rockchip - update new iv to device in multiple operations
	drm/imx: ignore plane updates on disabled crtcs
	gpu: ipu-v3: Fix i.MX51 CSI control registers offset
	drm/imx: imx-ldb: add missing of_node_puts
	gpu: ipu-v3: Fix CSI offsets for imx53
	s390/dasd: fix using offset into zero size array error
	Input: pwm-vibra - prevent unbalanced regulator
	Input: pwm-vibra - stop regulator after disabling pwm, not before
	ARM: OMAP2+: Variable "reg" in function omap4_dsi_mux_pads() could be uninitialized
	ASoC: dapm: fix out-of-bounds accesses to DAPM lookup tables
	ASoC: rsnd: fixup rsnd_ssi_master_clk_start() user count check
	KVM: arm/arm64: Reset the VCPU without preemption and vcpu state loaded
	ARM: OMAP2+: fix lack of timer interrupts on CPU1 after hotplug
	Input: cap11xx - switch to using set_brightness_blocking()
	Input: ps2-gpio - flush TX work when closing port
	Input: matrix_keypad - use flush_delayed_work()
	mac80211: Fix Tx aggregation session tear down with ITXQs
	ipvs: fix dependency on nf_defrag_ipv6
	floppy: check_events callback should not return a negative number
	NFS: Don't use page_file_mapping after removing the page
	mm/gup: fix gup_pmd_range() for dax
	Revert "mm: use early_pfn_to_nid in page_ext_init"
	mm: page_alloc: fix ref bias in page_frag_alloc() for 1-byte allocs
	net: hns: Fix object reference leaks in hns_dsaf_roce_reset()
	i2c: cadence: Fix the hold bit setting
	i2c: bcm2835: Clear current buffer pointers and counts after a transfer
	auxdisplay: ht16k33: fix potential user-after-free on module unload
	Input: st-keyscan - fix potential zalloc NULL dereference
	clk: sunxi-ng: v3s: Fix TCON reset de-assert bit
	clk: sunxi: A31: Fix wrong AHB gate number
	esp: Skip TX bytes accounting when sending from a request socket
	ARM: 8824/1: fix a migrating irq bug when hotplug cpu
	af_key: unconditionally clone on broadcast
	assoc_array: Fix shortcut creation
	keys: Fix dependency loop between construction record and auth key
	scsi: libiscsi: Fix race between iscsi_xmit_task and iscsi_complete_task
	net: systemport: Fix reception of BPDUs
	pinctrl: meson: meson8b: fix the sdxc_a data 1..3 pins
	qmi_wwan: apply SET_DTR quirk to Sierra WP7607
	net: mv643xx_eth: disable clk on error path in mv643xx_eth_shared_probe()
	mailbox: bcm-flexrm-mailbox: Fix FlexRM ring flush timeout issue
	ASoC: topology: free created components in tplg load error
	qed: Fix iWARP syn packet mac address validation.
	arm64: Relax GIC version check during early boot
	net: marvell: mvneta: fix DMA debug warning
	tmpfs: fix link accounting when a tmpfile is linked in
	ixgbe: fix older devices that do not support IXGBE_MRQC_L3L4TXSWEN
	ARCv2: lib: memcpy: fix doing prefetchw outside of buffer
	ARC: uacces: remove lp_start, lp_end from clobber list
	ARCv2: support manual regfile save on interrupts
	phonet: fix building with clang
	mac80211_hwsim: propagate genlmsg_reply return code
	net: thunderx: make CFG_DONE message to run through generic send-ack sequence
	nfp: bpf: fix code-gen bug on BPF_ALU | BPF_XOR | BPF_K
	nfp: bpf: fix ALU32 high bits clearance bug
	net: set static variable an initial value in atl2_probe()
	tmpfs: fix uninitialized return value in shmem_link
	media: videobuf2-v4l2: drop WARN_ON in vb2_warn_zero_bytesused()
	stm class: Prevent division by zero
	libnvdimm/label: Clear 'updating' flag after label-set update
	libnvdimm, pfn: Fix over-trim in trim_pfn_device()
	libnvdimm/pmem: Honor force_raw for legacy pmem regions
	libnvdimm: Fix altmap reservation size calculation
	fix cgroup_do_mount() handling of failure exits
	crypto: arm/crct10dif - revert to C code for short inputs
	crypto: arm64/crct10dif - revert to C code for short inputs
	crypto: hash - set CRYPTO_TFM_NEED_KEY if ->setkey() fails
	crypto: testmgr - skip crc32c context test for ahash algorithms
	crypto: arm64/aes-ccm - fix logical bug in AAD MAC handling
	crypto: arm64/aes-ccm - fix bugs in non-NEON fallback routine
	CIFS: Do not reset lease state to NONE on lease break
	CIFS: Fix read after write for files with read caching
	tracing: Use strncpy instead of memcpy for string keys in hist triggers
	tracing: Do not free iter->trace in fail path of tracing_open_pipe()
	xen: fix dom0 boot on huge systems
	ACPI / device_sysfs: Avoid OF modalias creation for removed device
	mmc: sdhci-esdhc-imx: fix HS400 timing issue
	spi: ti-qspi: Fix mmap read when more than one CS in use
	spi: pxa2xx: Setup maximum supported DMA transfer length
	regulator: s2mps11: Fix steps for buck7, buck8 and LDO35
	regulator: max77620: Initialize values for DT properties
	regulator: s2mpa01: Fix step values for some LDOs
	clocksource/drivers/exynos_mct: Move one-shot check from tick clear to ISR
	clocksource/drivers/exynos_mct: Clear timer interrupt when shutdown
	s390/setup: fix early warning messages
	s390/virtio: handle find on invalid queue gracefully
	scsi: virtio_scsi: don't send sc payload with tmfs
	scsi: aacraid: Fix performance issue on logical drives
	scsi: sd: Optimal I/O size should be a multiple of physical block size
	scsi: target/iscsi: Avoid iscsit_release_commands_from_conn() deadlock
	fs/devpts: always delete dcache dentry-s in dput()
	splice: don't merge into linked buffers
	m68k: Add -ffreestanding to CFLAGS
	Btrfs: setup a nofs context for memory allocation at __btrfs_set_acl
	btrfs: ensure that a DUP or RAID1 block group has exactly two stripes
	Btrfs: fix corruption reading shared and compressed extents after hole punching
	crypto: pcbc - remove bogus memcpy()s with src == dest
	libertas_tf: don't set URB_ZERO_PACKET on IN USB transfer
	irqchip/gic-v3-its: Avoid parsing _indirect_ twice for Device table
	x86/kprobes: Prohibit probing on optprobe template code
	cpufreq: tegra124: add missing of_node_put()
	cpufreq: pxa2xx: remove incorrect __init annotation
	ext4: add mask of ext4 flags to swap
	ext4: fix crash during online resizing
	IB/hfi1: Close race condition on user context disable and close
	cxl: Wrap iterations over afu slices inside 'afu_list_lock'
	ext2: Fix underflow in ext2_max_size()
	clk: uniphier: Fix update register for CPU-gear
	clk: clk-twl6040: Fix imprecise external abort for pdmclk
	clk: ingenic: Fix round_rate misbehaving with non-integer dividers
	clk: ingenic: Fix doc of ingenic_cgu_div_info
	usb: chipidea: tegra: Fix missed ci_hdrc_remove_device()
	nfit: acpi_nfit_ctl(): Check out_obj->type in the right place
	mm: hwpoison: fix thp split handing in soft_offline_in_use_page()
	mm/vmalloc: fix size check for remap_vmalloc_range_partial()
	kernel/sysctl.c: add missing range check in do_proc_dointvec_minmax_conv
	device property: Fix the length used in PROPERTY_ENTRY_STRING()
	intel_th: Don't reference unassigned outputs
	parport_pc: fix find_superio io compare code, should use equal test.
	i2c: tegra: fix maximum transfer size
	crypto: arm64/aes-neonbs - fix returning final keystream block
	drm/i915: Relax mmap VMA check
	serial: uartps: Fix stuck ISR if RX disabled with non-empty FIFO
	serial: 8250_of: assume reg-shift of 2 for mrvl,mmp-uart
	serial: 8250_pci: Fix number of ports for ACCES serial cards
	serial: 8250_pci: Have ACCES cards that use the four port Pericom PI7C9X7954 chip use the pci_pericom_setup()
	jbd2: clear dirty flag when revoking a buffer from an older transaction
	jbd2: fix compile warning when using JBUFFER_TRACE
	security/selinux: fix SECURITY_LSM_NATIVE_LABELS on reused superblock
	powerpc/32: Clear on-stack exception marker upon exception return
	powerpc/wii: properly disable use of BATs when requested.
	powerpc/powernv: Make opal log only readable by root
	powerpc/83xx: Also save/restore SPRG4-7 during suspend
	powerpc: Fix 32-bit KVM-PR lockup and host crash with MacOS guest
	powerpc/ptrace: Simplify vr_get/set() to avoid GCC warning
	powerpc/hugetlb: Don't do runtime allocation of 16G pages in LPAR configuration
	powerpc/traps: fix recoverability of machine check handling on book3s/32
	powerpc/traps: Fix the message printed when stack overflows
	ARM: s3c24xx: Fix boolean expressions in osiris_dvs_notify
	arm64: Fix HCR.TGE status for NMI contexts
	arm64: debug: Ensure debug handlers check triggering exception level
	arm64: KVM: Fix architecturally invalid reset value for FPEXC32_EL2
	dm: fix to_sector() for 32bit
	dm integrity: limit the rate of error messages
	cpcap-charger: generate events for userspace
	NFS: Fix I/O request leakages
	NFS: Fix an I/O request leakage in nfs_do_recoalesce
	NFS: Don't recoalesce on error in nfs_pageio_complete_mirror()
	nfsd: fix memory corruption caused by readdir
	nfsd: fix wrong check in write_v4_end_grace()
	NFSv4.1: Reinitialise sequence results before retransmitting a request
	PM / wakeup: Rework wakeup source timer cancellation
	bcache: never writeback a discard operation
	x86/unwind/orc: Fix ORC unwind table alignment
	perf intel-pt: Fix CYC timestamp calculation after OVF
	perf auxtrace: Define auxtrace record alignment
	perf intel-pt: Fix overlap calculation for padding
	perf intel-pt: Fix divide by zero when TSC is not available
	md: Fix failed allocation of md_register_thread
	tpm/tpm_crb: Avoid unaligned reads in crb_recv()
	tpm: Unify the send callback behaviour
	rcu: Do RCU GP kthread self-wakeup from softirq and interrupt
	media: imx: prpencvf: Stop upstream before disabling IDMA channel
	media: uvcvideo: Avoid NULL pointer dereference at the end of streaming
	media: vimc: Add vimc-streamer for stream control
	media: imx: csi: Disable CSI immediately after last EOF
	media: imx: csi: Stop upstream before disabling IDMA channel
	drm/radeon/evergreen_cs: fix missing break in switch statement
	KVM: Call kvm_arch_memslots_updated() before updating memslots
	KVM: x86/mmu: Detect MMIO generation wrap in any address space
	KVM: x86/mmu: Do not cache MMIO accesses while memslots are in flux
	KVM: nVMX: Sign extend displacements of VMX instr's mem operands
	KVM: nVMX: Apply addr size mask to effective address for VMX instructions
	KVM: nVMX: Ignore limit checks on VMX instructions using flat segments
	s390/setup: fix boot crash for machine without EDAT-1
	Linux 4.14.108

Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
2019-03-23 21:12:16 +01:00
NeilBrown
8259d56156 dm: fix to_sector() for 32bit
commit 0bdb50c531f7377a9da80d3ce2d61f389c84cb30 upstream.

A dm-raid array with devices larger than 4GB won't assemble on
a 32 bit host since _check_data_dev_sectors() was added in 4.16.
This is because to_sector() treats its argument as an "unsigned long"
which is 32bits (4GB) on a 32bit host.  Using "unsigned long long"
is more correct.

Kernels as early as 4.2 can have other problems due to to_sector()
being used on the size of a device.

Fixes: 0cf4503174 ("dm raid: add support for the MD RAID0 personality")
cc: stable@vger.kernel.org (v4.2+)
Reported-and-tested-by: Guillaume Perréal <gperreal@free.fr>
Signed-off-by: NeilBrown <neil@brown.name>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-03-23 14:35:28 +01:00
David Zeuthen
834155c54d ANDROID: dm: do_mounts_dm: Update init/do_mounts_dm.c to the latest ChromiumOS version.
This is needed for AVB.

Bug: None
Test: Compiles.
Change-Id: I45b5d435652ab66ec07420ab17f2c7889f7e4d95
Signed-off-by: David Zeuthen <zeuthen@google.com>
2017-12-18 21:11:22 +05:30
Will Drewry
0cc78aab28 CHROMIUM: dm: boot time specification of dm=
This is a wrap-up of three patches pending upstream approval.
I'm bundling them because they are interdependent, and it'll be
easier to drop it on rebase later.

1. dm: allow a dm-fs-style device to be shared via dm-ioctl

Integrates feedback from Alisdair, Mike, and Kiyoshi.

Two main changes occur here:

- One function is added which allows for a programmatically created
mapped device to be inserted into the dm-ioctl hash table.  This binds
the device to a name and, optional, uuid which is needed by udev and
allows for userspace management of the mapped device.

- dm_table_complete() was extended to handle all of the final
functional changes required for the table to be operational once
called.

2. init: boot to device-mapper targets without an initr*

Add a dm= kernel parameter modeled after the md= parameter from
do_mounts_md.  It allows for device-mapper targets to be configured at
boot time for use early in the boot process (as the root device or
otherwise).  It also replaces /dev/XXX calls with major:minor opportunistically.

The format is dm="name uuid ro,table line 1,table line 2,...".  The
parser expects the comma to be safe to use as a newline substitute but,
otherwise, uses the normal separator of space.  Some attempt has been
made to make it forgiving of additional spaces (using skip_spaces()).

A mapped device created during boot will be assigned a minor of 0 and
may be access via /dev/dm-0.

An example dm-linear root with no uuid may look like:

root=/dev/dm-0  dm="lroot none ro, 0 4096 linear /dev/ubdb 0, 4096 4096 linear /dv/ubdc 0"

Once udev is started, /dev/dm-0 will become /dev/mapper/lroot.

Older upstream threads:
http://marc.info/?l=dm-devel&m=127429492521964&w=2
http://marc.info/?l=dm-devel&m=127429499422096&w=2
http://marc.info/?l=dm-devel&m=127429493922000&w=2

Latest upstream threads:
https://patchwork.kernel.org/patch/104859/
https://patchwork.kernel.org/patch/104860/
https://patchwork.kernel.org/patch/104861/

Bug: 27175947

Signed-off-by: Will Drewry <wad@chromium.org>

Review URL: http://codereview.chromium.org/2020011

Change-Id: I92bd53432a11241228d2e5ac89a3b20d19b05a31

[AmitP: Refactored the original changes based on upstream changes,
        commit e52347bd66 ("Documentation/admin-guide: split the kernel parameter list to a separate file")]
Signed-off-by: Amit Pundir <amit.pundir@linaro.org>
2017-12-18 21:11:22 +05:30
Mikulas Patocka
c3ca015fab dax: remove the pmem_dax_ops->flush abstraction
Commit abebfbe2f7 ("dm: add ->flush() dax operation support") is
buggy. A DM device may be composed of multiple underlying devices and
all of them need to be flushed. That commit just routes the flush
request to the first device and ignores the other devices.

It could be fixed by adding more complex logic to the device mapper. But
there is only one implementation of the method pmem_dax_ops->flush - that
is pmem_dax_flush() - and it calls arch_wb_cache_pmem(). Consequently, we
don't need the pmem_dax_ops->flush abstraction at all, we can call
arch_wb_cache_pmem() directly from dax_flush() because dax_dev->ops->flush
can't ever reach anything different from arch_wb_cache_pmem().

It should be also pointed out that for some uses of persistent memory it
is needed to flush only a very small amount of data (such as 1 cacheline),
and it would be overkill if we go through that device mapper machinery for
a single flushed cache line.

Fix this by removing the pmem_dax_ops->flush abstraction and call
arch_wb_cache_pmem() directly from dax_flush(). Also, remove the device
mapper code that forwards the flushes.

Fixes: abebfbe2f7 ("dm: add ->flush() dax operation support")
Cc: stable@vger.kernel.org
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Reviewed-by: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
2017-09-11 11:00:55 -04:00
Eric Biggers
5916a22b83 dm: constify argument arrays
The arrays of 'struct dm_arg' are never modified by the device-mapper
core, so constify them so that they are placed in .rodata.

(Exception: the args array in dm-raid cannot be constified because it is
allocated on the stack and modified.)

Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
2017-08-28 11:47:18 -04:00
Bart Van Assche
604407890e dm: fix printk() rate limiting code
Using the same rate limiting state for different kinds of messages
is wrong because this can cause a high frequency message to suppress
a report of a low frequency message. Hence use a unique rate limiting
state per message type.

Fixes: 71a16736a1 ("dm: use local printk ratelimit")
Cc: stable@vger.kernel.org
Signed-off-by: Bart Van Assche <bart.vanassche@wdc.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
2017-08-28 09:58:27 -04:00
Linus Torvalds
b6ffe9ba46 Merge tag 'libnvdimm-for-4.13' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm
Pull libnvdimm updates from Dan Williams:
 "libnvdimm updates for the latest ACPI and UEFI specifications. This
  pull request also includes new 'struct dax_operations' enabling to
  undo the abuse of copy_user_nocache() for copy operations to pmem.

  The dax work originally missed 4.12 to address concerns raised by Al.

  Summary:

   - Introduce the _flushcache() family of memory copy helpers and use
     them for persistent memory write operations on x86. The
     _flushcache() semantic indicates that the cache is either bypassed
     for the copy operation (movnt) or any lines dirtied by the copy
     operation are written back (clwb, clflushopt, or clflush).

   - Extend dax_operations with ->copy_from_iter() and ->flush()
     operations. These operations and other infrastructure updates allow
     all persistent memory specific dax functionality to be pushed into
     libnvdimm and the pmem driver directly. It also allows dax-specific
     sysfs attributes to be linked to a host device, for example:
     /sys/block/pmem0/dax/write_cache

   - Add support for the new NVDIMM platform/firmware mechanisms
     introduced in ACPI 6.2 and UEFI 2.7. This support includes the v1.2
     namespace label format, extensions to the address-range-scrub
     command set, new error injection commands, and a new BTT
     (block-translation-table) layout. These updates support inter-OS
     and pre-OS compatibility.

   - Fix a longstanding memory corruption bug in nfit_test.

   - Make the pmem and nvdimm-region 'badblocks' sysfs files poll(2)
     capable.

   - Miscellaneous fixes and small updates across libnvdimm and the nfit
     driver.

  Acknowledgements that came after the branch was pushed: commit
  6aa734a2f3 ("libnvdimm, region, pmem: fix 'badblocks'
  sysfs_get_dirent() reference lifetime") was reviewed by Toshi Kani
  <toshi.kani@hpe.com>"

* tag 'libnvdimm-for-4.13' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm: (42 commits)
  libnvdimm, namespace: record 'lbasize' for pmem namespaces
  acpi/nfit: Issue Start ARS to retrieve existing records
  libnvdimm: New ACPI 6.2 DSM functions
  acpi, nfit: Show bus_dsm_mask in sysfs
  libnvdimm, acpi, nfit: Add bus level dsm mask for pass thru.
  acpi, nfit: Enable DSM pass thru for root functions.
  libnvdimm: passthru functions clear to send
  libnvdimm, btt: convert some info messages to warn/err
  libnvdimm, region, pmem: fix 'badblocks' sysfs_get_dirent() reference lifetime
  libnvdimm: fix the clear-error check in nsio_rw_bytes
  libnvdimm, btt: fix btt_rw_page not returning errors
  acpi, nfit: quiet invalid block-aperture-region warnings
  libnvdimm, btt: BTT updates for UEFI 2.7 format
  acpi, nfit: constify *_attribute_group
  libnvdimm, pmem: disable dax flushing when pmem is fronting a volatile region
  libnvdimm, pmem, dax: export a cache control attribute
  dax: convert to bitmask for flags
  dax: remove default copy_from_iter fallback
  libnvdimm, nfit: enable support for volatile ranges
  libnvdimm, pmem: fix persistence warning
  ...
2017-07-07 09:44:06 -07:00
Damien Le Moal
10999307c1 dm: introduce dm_remap_zone_report()
A target driver support zoned block devices and exposing it as such may
receive REQ_OP_ZONE_REPORT request for the user to determine the mapped
device zone configuration. To process properly such request, the target
driver may need to remap the zone descriptors provided in the report
reply. The helper function dm_remap_zone_report() does this generically
using only the target start offset and length and the start offset
within the target device.

dm_remap_zone_report() will remap the start sector of all zones
reported. If the report includes sequential zones, the write pointer
position of these zones will also be remapped.

Signed-off-by: Damien Le Moal <damien.lemoal@wdc.com>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Reviewed-by: Bart Van Assche <bart.vanassche@sandisk.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
2017-06-19 11:03:51 -04:00
Damien Le Moal
dd88d313be dm table: add zoned block devices validation
1) Introduce DM_TARGET_ZONED_HM feature flag:

The target drivers currently available will not operate correctly if a
table target maps onto a host-managed zoned block device.

To avoid problems, introduce the new feature flag DM_TARGET_ZONED_HM to
allow a target to explicitly state that it supports host-managed zoned
block devices.  This feature is checked for all targets in a table if
any of the table's block devices are host-managed.

Note that as host-aware zoned block devices are backward compatible with
regular block devices, they can be used by any of the current target
types.  This new feature is thus restricted to host-managed zoned block
devices.

2) Check device area zone alignment:

If a target maps to a zoned block device, check that the device area is
aligned on zone boundaries to avoid problems with REQ_OP_ZONE_RESET
operations (resetting a partially mapped sequential zone would not be
possible).  This also facilitates the processing of zone report with
REQ_OP_ZONE_REPORT bios.

3) Check block devices zone model compatibility

When setting the DM device's queue limits, several possibilities exists
for zoned block devices:
1) The DM target driver may want to expose a different zone model
(e.g. host-managed device emulation or regular block device on top of
host-managed zoned block devices)
2) Expose the underlying zone model of the devices as-is

To allow both cases, the underlying block device zone model must be set
in the target limits in dm_set_device_limits() and the compatibility of
all devices checked similarly to the logical block size alignment.  For
this last check, introduce validate_hardware_zoned_model() to check that
all targets of a table have the same zone model and that the zone size
of the target devices are equal.

Signed-off-by: Damien Le Moal <damien.lemoal@wdc.com>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Reviewed-by: Bart Van Assche <bart.vanassche@sandisk.com>
[Mike Snitzer refactored Damien's original work to simplify the code]
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
2017-06-19 11:03:50 -04:00
Joe Perches
d2c3c8dcb5 dm: convert DM printk macros to pr_<level> macros
Using pr_<level> is the more common logging style.

Standardize style and use new macro DM_FMT.
Use no_printk in DMDEBUG macros when CONFIG_DM_DEBUG is not #defined.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
2017-06-19 11:03:50 -04:00
Dan Williams
abebfbe2f7 dm: add ->flush() dax operation support
Allow device-mapper to route flush operations to the
per-target implementation. In order for the device stacking to work we
need a dax_dev and a pgoff relative to that device. This gives each
layer of the stack the information it needs to look up the operation
pointer for the next level.

This conceptually allows for an array of mixed device drivers with
varying flush implementations.

Reviewed-by: Toshi Kani <toshi.kani@hpe.com>
Reviewed-by: Mike Snitzer <snitzer@redhat.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2017-06-15 14:34:59 -07:00
Dan Williams
7e026c8c0a dm: add ->copy_from_iter() dax operation support
Allow device-mapper to route copy_from_iter operations to the
per-target implementation. In order for the device stacking to work we
need a dax_dev and a pgoff relative to that device. This gives each
layer of the stack the information it needs to look up the operation
pointer for the next level.

This conceptually allows for an array of mixed device drivers with
varying copy_from_iter implementations.

Reviewed-by: Toshi Kani <toshi.kani@hpe.com>
Reviewed-by: Mike Snitzer <snitzer@redhat.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2017-06-09 09:22:21 -07:00
Christoph Hellwig
4e4cbee93d block: switch bios to blk_status_t
Replace bi_error with a new bi_status to allow for a clear conversion.
Note that device mapper overloaded bi_error with a private value, which
we'll have to keep arround at least for now and thus propagate to a
proper blk_status_t value.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@fb.com>
2017-06-09 09:27:32 -06:00
Christoph Hellwig
2a842acab1 block: introduce new block status code type
Currently we use nornal Linux errno values in the block layer, and while
we accept any error a few have overloaded magic meanings.  This patch
instead introduces a new  blk_status_t value that holds block layer specific
status codes and explicitly explains their meaning.  Helpers to convert from
and to the previous special meanings are provided for now, but I suspect
we want to get rid of them in the long run - those drivers that have a
errno input (e.g. networking) usually get errnos that don't know about
the special block layer overloads, and similarly returning them to userspace
will usually return somethings that strictly speaking isn't correct
for file system operations, but that's left as an exercise for later.

For now the set of errors is a very limited set that closely corresponds
to the previous overloaded errno values, but there is some low hanging
fruite to improve it.

blk_status_t (ab)uses the sparse __bitwise annotations to allow for sparse
typechecking, so that we can easily catch places passing the wrong values.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@fb.com>
2017-06-09 09:27:32 -06:00
Christoph Hellwig
1be5690984 dm: change ->end_io calling convention
Turn the error paramter into a pointer so that target drivers can change
the value, and make sure only DM_ENDIO_* values are returned from the
methods.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
2017-06-09 09:27:32 -06:00
Linus Torvalds
53ef7d0e20 Merge tag 'libnvdimm-for-4.12' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm
Pull libnvdimm updates from Dan Williams:
 "The bulk of this has been in multiple -next releases. There were a few
  late breaking fixes and small features that got added in the last
  couple days, but the whole set has received a build success
  notification from the kbuild robot.

  Change summary:

   - Region media error reporting: A libnvdimm region device is the
     parent to one or more namespaces. To date, media errors have been
     reported via the "badblocks" attribute attached to pmem block
     devices for namespaces in "raw" or "memory" mode. Given that
     namespaces can be in "device-dax" or "btt-sector" mode this new
     interface reports media errors generically, i.e. independent of
     namespace modes or state.

     This subsequently allows userspace tooling to craft "ACPI 6.1
     Section 9.20.7.6 Function Index 4 - Clear Uncorrectable Error"
     requests and submit them via the ioctl path for NVDIMM root bus
     devices.

   - Introduce 'struct dax_device' and 'struct dax_operations': Prompted
     by a request from Linus and feedback from Christoph this allows for
     dax capable drivers to publish their own custom dax operations.
     This fixes the broken assumption that all dax operations are
     related to a persistent memory device, and makes it easier for
     other architectures and platforms to add customized persistent
     memory support.

   - 'libnvdimm' core updates: A new "deep_flush" sysfs attribute is
     available for storage appliance applications to manually trigger
     memory controllers to drain write-pending buffers that would
     otherwise be flushed automatically by the platform ADR
     (asynchronous-DRAM-refresh) mechanism at a power loss event.
     Support for "locked" DIMMs is included to prevent namespaces from
     surfacing when the namespace label data area is locked. Finally,
     fixes for various reported deadlocks and crashes, also tagged for
     -stable.

   - ACPI / nfit driver updates: General updates of the nfit driver to
     add DSM command overrides, ACPI 6.1 health state flags support, DSM
     payload debug available by default, and various fixes.

  Acknowledgements that came after the branch was pushed:

   - commmit 565851c972 "device-dax: fix sysfs attribute deadlock":
     Tested-by: Yi Zhang <yizhan@redhat.com>

   - commit 23f4984483 "libnvdimm: rework region badblocks clearing"
     Tested-by: Toshi Kani <toshi.kani@hpe.com>"

* tag 'libnvdimm-for-4.12' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm: (52 commits)
  libnvdimm, pfn: fix 'npfns' vs section alignment
  libnvdimm: handle locked label storage areas
  libnvdimm: convert NDD_ flags to use bitops, introduce NDD_LOCKED
  brd: fix uninitialized use of brd->dax_dev
  block, dax: use correct format string in bdev_dax_supported
  device-dax: fix sysfs attribute deadlock
  libnvdimm: restore "libnvdimm: band aid btt vs clear poison locking"
  libnvdimm: fix nvdimm_bus_lock() vs device_lock() ordering
  libnvdimm: rework region badblocks clearing
  acpi, nfit: kill ACPI_NFIT_DEBUG
  libnvdimm: fix clear length of nvdimm_forget_poison()
  libnvdimm, pmem: fix a NULL pointer BUG in nd_pmem_notify
  libnvdimm, region: sysfs trigger for nvdimm_flush()
  libnvdimm: fix phys_addr for nvdimm_clear_poison
  x86, dax, pmem: remove indirection around memcpy_from_pmem()
  block: remove block_device_operations ->direct_access()
  block, dax: convert bdev_dax_supported() to dax_direct_access()
  filesystem-dax: convert to dax_direct_access()
  Revert "block: use DAX for partition table reads"
  ext2, ext4, xfs: retrieve dax_device for iomap operations
  ...
2017-05-05 18:49:20 -07:00
Christoph Hellwig
412445acb6 dm: introduce a new DM_MAPIO_KILL return value
This untangles the DM_MAPIO_* values returned from ->clone_and_map_rq
from the error codes used by the block layer.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
2017-05-01 18:19:03 -04:00
Christoph Hellwig
7ed8578a96 dm rq: change ->rq_end_io calling conventions
Instead of returning either a DM_ENDIO_* constant or an error code, add
a new DM_ENDIO_DONE value that means keep errno as is.  This allows us
to easily keep the existing error code in case where we can't push back,
and it also preparares for the new block level status codes with strict
type checking.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
2017-05-01 18:19:03 -04:00
Mike Snitzer
7e25a76061 Merge branch 'dm-4.12' into dm-4.12-post-merge 2017-05-01 18:18:04 -04:00
Bart Van Assche
7e0d574f26 dm: introduce enum dm_queue_mode to cleanup related code
Introduce an enumeration type for the queue mode.  This patch does
not change any functionality but makes the DM code easier to read.

Signed-off-by: Bart Van Assche <bart.vanassche@sandisk.com>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
2017-04-27 17:08:44 -04:00
Dan Williams
817bf40265 dm: teach dm-targets to use a dax_device + dax_operations
Arrange for dm to lookup the dax services available from member devices.
Update the dax-capable targets, linear and stripe, to route dax
operations to the underlying device. Changes the target-internal
->direct_access() method to more closely align with the dax_operations
->direct_access() calling convention.

Cc: Toshi Kani <toshi.kani@hpe.com>
Reviewed-by: Mike Snitzer <snitzer@redhat.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2017-04-25 13:20:36 -07:00
Mikulas Patocka
e2460f2a4b dm: mark targets that pass integrity data
A dm-crypt on dm-integrity device incorrectly advertises an integrity
profile on the DM crypt device.  It can be seen in the files
"/sys/block/dm-*/integrity/*" that both dm-integrity and dm-crypt target
advertise the integrity profile.  That is incorrect, only the
dm-integrity target should advertise the integrity profile.

A general problem in DM is that if we have a DM device that depends on
another device with an integrity profile, the upper device will always
advertise the integrity profile, even when the target driver doesn't
support handling integrity data.

Most targets don't support integrity data, so we provide a whitelist of
targets that support it (linear, delay and striped).  The targets that
support passing integrity data to the lower device are marked with the
flag DM_TARGET_PASSES_INTEGRITY.  The DM core will now advertise
integrity data on a DM device only if all the targets support the
integrity data.

Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
2017-04-24 12:04:32 -04:00
Dan Williams
f26c5719b2 dm: add dax_device and dax_operations support
Allocate a dax_device to represent the capacity of a device-mapper
instance. Provide a ->direct_access() method via the new dax_operations
indirection that mirrors the functionality of the current direct_access
support via block_device_operations.  Once fs/dax.c has been converted
to use dax_operations the old dm_blk_direct_access() will be removed.

A new helper dm_dax_get_live_target() is introduced to separate some of
the dm-specifics from the direct_access implementation.

This enabling is only for the top-level dm representation to upper
layers. Converting target direct_access implementations is deferred to a
separate patch.

Cc: Toshi Kani <toshi.kani@hpe.com>
Reviewed-by: Mike Snitzer <snitzer@redhat.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2017-04-20 11:57:52 -07:00
Christoph Hellwig
48920ff2a5 block: remove the discard_zeroes_data flag
Now that we use the proper REQ_OP_WRITE_ZEROES operation everywhere we can
kill this hack.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
2017-04-08 11:25:38 -06:00
Christoph Hellwig
ac62d6208a dm: support REQ_OP_WRITE_ZEROES
Copy & paste from the REQ_OP_WRITE_SAME code.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
2017-04-08 11:25:38 -06:00
Milan Broz
9b4b5a797c dm table: add flag to allow target to handle its own integrity metadata
Add DM_TARGET_INTEGRITY flag that specifies bio integrity metadata is
not inherited but implemented in the target itself.

Signed-off-by: Milan Broz <gmazyland@gmail.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
2017-03-07 13:28:32 -05:00
Christoph Hellwig
eb8db831be dm: always defer request allocation to the owner of the request_queue
DM already calls blk_mq_alloc_request on the request_queue of the
underlying device if it is a blk-mq device.  But now that we allow drivers
to allocate additional data and initialize it ahead of time we need to do
the same for all drivers.   Doing so and using the new cmd_size
infrastructure in the block layer greatly simplifies the dm-rq and mpath
code, and should also make arbitrary combinations of SQ and MQ devices
with SQ or MQ device mapper tables easily possible as a further step.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Reviewed-by: Mike Snitzer <snitzer@redhat.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
2017-01-27 15:08:35 -07:00
Mike Snitzer
a8ac51e4ab dm rq: add DM_MAPIO_DELAY_REQUEUE to delay requeue of blk-mq requests
Otherwise blk-mq will immediately dispatch requests that are requeued
via a BLK_MQ_RQ_QUEUE_BUSY return from blk_mq_ops .queue_rq.

Delayed requeue is implemented using blk_mq_delay_kick_requeue_list()
with a delay of 5 secs.  In the context of DM multipath (all paths down)
it doesn't make any sense to requeue more quickly.

Signed-off-by: Mike Snitzer <snitzer@redhat.com>
2016-09-14 13:56:38 -04:00
Linus Torvalds
f0c98ebc57 Merge tag 'libnvdimm-for-4.8' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm
Pull libnvdimm updates from Dan Williams:

 - Replace pcommit with ADR / directed-flushing.

   The pcommit instruction, which has not shipped on any product, is
   deprecated.  Instead, the requirement is that platforms implement
   either ADR, or provide one or more flush addresses per nvdimm.

   ADR (Asynchronous DRAM Refresh) flushes data in posted write buffers
   to the memory controller on a power-fail event.

   Flush addresses are defined in ACPI 6.x as an NVDIMM Firmware
   Interface Table (NFIT) sub-structure: "Flush Hint Address Structure".
   A flush hint is an mmio address that when written and fenced assures
   that all previous posted writes targeting a given dimm have been
   flushed to media.

 - On-demand ARS (address range scrub).

   Linux uses the results of the ACPI ARS commands to track bad blocks
   in pmem devices.  When latent errors are detected we re-scrub the
   media to refresh the bad block list, userspace can also request a
   re-scrub at any time.

 - Support for the Microsoft DSM (device specific method) command
   format.

 - Support for EDK2/OVMF virtual disk device memory ranges.

 - Various fixes and cleanups across the subsystem.

* tag 'libnvdimm-for-4.8' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm: (41 commits)
  libnvdimm-btt: Delete an unnecessary check before the function call "__nd_device_register"
  nfit: do an ARS scrub on hitting a latent media error
  nfit: move to nfit/ sub-directory
  nfit, libnvdimm: allow an ARS scrub to be triggered on demand
  libnvdimm: register nvdimm_bus devices with an nd_bus driver
  pmem: clarify a debug print in pmem_clear_poison
  x86/insn: remove pcommit
  Revert "KVM: x86: add pcommit support"
  nfit, tools/testing/nvdimm/: unify shutdown paths
  libnvdimm: move ->module to struct nvdimm_bus_descriptor
  nfit: cleanup acpi_nfit_init calling convention
  nfit: fix _FIT evaluation memory leak + use after free
  tools/testing/nvdimm: add manufacturing_{date|location} dimm properties
  tools/testing/nvdimm: add virtual ramdisk range
  acpi, nfit: treat virtual ramdisk SPA as pmem region
  pmem: kill __pmem address space
  pmem: kill wmb_pmem()
  libnvdimm, pmem: use nvdimm_flush() for namespace I/O writes
  fs/dax: remove wmb_pmem()
  libnvdimm, pmem: flush posted-write queues on shutdown
  ...
2016-07-28 17:38:16 -07:00
Toshi Kani
545ed20e6d dm: add infrastructure for DAX support
Change mapped device to implement direct_access function,
dm_blk_direct_access(), which calls a target direct_access function.
'struct target_type' is extended to have target direct_access interface.
This function limits direct accessible size to the dm_target's limit
with max_io_len().

Add dm_table_supports_dax() to iterate all targets and associated block
devices to check for DAX support.  To add DAX support to a DM target the
target must only implement the direct_access function.

Add a new dm type, DM_TYPE_DAX_BIO_BASED, which indicates that mapped
device supports DAX and is bio based.  This new type is used to assure
that all target devices have DAX support and remain that way after
QUEUE_FLAG_DAX is set in mapped device.

At initial table load, QUEUE_FLAG_DAX is set to mapped device when setting
DM_TYPE_DAX_BIO_BASED to the type.  Any subsequent table load to the
mapped device must have the same type, or else it fails per the check in
table_load().

Signed-off-by: Toshi Kani <toshi.kani@hpe.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
2016-07-20 23:49:49 -04:00
Mike Snitzer
e83068a5fa dm mpath: add optional "queue_mode" feature
Allow a user to specify an optional feature 'queue_mode <mode>' where
<mode> may be "bio", "rq" or "mq" -- which corresponds to bio-based,
request_fn rq-based, and blk-mq rq-based respectively.

If the queue_mode feature isn't specified the default for the
"multipath" target is still "rq" but if dm_mod.use_blk_mq is set to Y
it'll default to mode "mq".

This new queue_mode feature introduces the ability for each multipath
device to have its own queue_mode (whereas before this feature all
multipath devices effectively had to have the same queue_mode).

This commit also goes a long way to eliminate the awkward (ab)use of
DM_TYPE_*, the associated filter_md_type() and other relatively fragile
and difficult to maintain code.

Signed-off-by: Mike Snitzer <snitzer@redhat.com>
2016-06-10 15:16:02 -04:00
DingXiang
4df2bf466a dm snapshot: disallow the COW and origin devices from being identical
Otherwise loading a "snapshot" table using the same device for the
origin and COW devices, e.g.:

echo "0 20971520 snapshot 253:3 253:3 P 8" | dmsetup create snap

will trigger:

BUG: unable to handle kernel NULL pointer dereference at 0000000000000098
[ 1958.979934] IP: [<ffffffffa040efba>] dm_exception_store_set_chunk_size+0x7a/0x110 [dm_snapshot]
[ 1958.989655] PGD 0
[ 1958.991903] Oops: 0000 [#1] SMP
...
[ 1959.059647] CPU: 9 PID: 3556 Comm: dmsetup Tainted: G          IO    4.5.0-rc5.snitm+ #150
...
[ 1959.083517] task: ffff8800b9660c80 ti: ffff88032a954000 task.ti: ffff88032a954000
[ 1959.091865] RIP: 0010:[<ffffffffa040efba>]  [<ffffffffa040efba>] dm_exception_store_set_chunk_size+0x7a/0x110 [dm_snapshot]
[ 1959.104295] RSP: 0018:ffff88032a957b30  EFLAGS: 00010246
[ 1959.110219] RAX: 0000000000000000 RBX: 0000000000000008 RCX: 0000000000000001
[ 1959.118180] RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffff880329334a00
[ 1959.126141] RBP: ffff88032a957b50 R08: 0000000000000000 R09: 0000000000000001
[ 1959.134102] R10: 000000000000000a R11: f000000000000000 R12: ffff880330884d80
[ 1959.142061] R13: 0000000000000008 R14: ffffc90001c13088 R15: ffff880330884d80
[ 1959.150021] FS:  00007f8926ba3840(0000) GS:ffff880333440000(0000) knlGS:0000000000000000
[ 1959.159047] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 1959.165456] CR2: 0000000000000098 CR3: 000000032f48b000 CR4: 00000000000006e0
[ 1959.173415] Stack:
[ 1959.175656]  ffffc90001c13040 ffff880329334a00 ffff880330884ed0 ffff88032a957bdc
[ 1959.183946]  ffff88032a957bb8 ffffffffa040f225 ffff880329334a30 ffff880300000000
[ 1959.192233]  ffffffffa04133e0 ffff880329334b30 0000000830884d58 00000000569c58cf
[ 1959.200521] Call Trace:
[ 1959.203248]  [<ffffffffa040f225>] dm_exception_store_create+0x1d5/0x240 [dm_snapshot]
[ 1959.211986]  [<ffffffffa040d310>] snapshot_ctr+0x140/0x630 [dm_snapshot]
[ 1959.219469]  [<ffffffffa0005c44>] ? dm_split_args+0x64/0x150 [dm_mod]
[ 1959.226656]  [<ffffffffa0005ea7>] dm_table_add_target+0x177/0x440 [dm_mod]
[ 1959.234328]  [<ffffffffa0009203>] table_load+0x143/0x370 [dm_mod]
[ 1959.241129]  [<ffffffffa00090c0>] ? retrieve_status+0x1b0/0x1b0 [dm_mod]
[ 1959.248607]  [<ffffffffa0009e35>] ctl_ioctl+0x255/0x4d0 [dm_mod]
[ 1959.255307]  [<ffffffff813304e2>] ? memzero_explicit+0x12/0x20
[ 1959.261816]  [<ffffffffa000a0c3>] dm_ctl_ioctl+0x13/0x20 [dm_mod]
[ 1959.268615]  [<ffffffff81215eb6>] do_vfs_ioctl+0xa6/0x5c0
[ 1959.274637]  [<ffffffff81120d2f>] ? __audit_syscall_entry+0xaf/0x100
[ 1959.281726]  [<ffffffff81003176>] ? do_audit_syscall_entry+0x66/0x70
[ 1959.288814]  [<ffffffff81216449>] SyS_ioctl+0x79/0x90
[ 1959.294450]  [<ffffffff8167e4ae>] entry_SYSCALL_64_fastpath+0x12/0x71
...
[ 1959.323277] RIP  [<ffffffffa040efba>] dm_exception_store_set_chunk_size+0x7a/0x110 [dm_snapshot]
[ 1959.333090]  RSP <ffff88032a957b30>
[ 1959.336978] CR2: 0000000000000098
[ 1959.344121] ---[ end trace b049991ccad1169e ]---

Fixes: https://bugzilla.redhat.com/show_bug.cgi?id=1195899
Cc: stable@vger.kernel.org
Signed-off-by: Ding Xiang <dingxiang@huawei.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
2016-03-10 17:12:09 -05:00
Mike Snitzer
30187e1d48 dm: rename target's per_bio_data_size to per_io_data_size
Request-based DM will also make use of per_bio_data_size.

Signed-off-by: Mike Snitzer <snitzer@redhat.com>
2016-02-22 22:34:37 -05:00
Mike Snitzer
f083b09b78 dm: set DM_TARGET_WILDCARD feature on "error" target
The DM_TARGET_WILDCARD feature indicates that the "error" target may
replace any target; even immutable targets.  This feature will be useful
to preserve the ability to replace the "multipath" target even once it
is formally converted over to having the DM_TARGET_IMMUTABLE feature.

Also, implicit in the DM_TARGET_WILDCARD feature flag being set is that
.map, .map_rq, .clone_and_map_rq and .release_clone_rq are all defined
in the target_type.

Signed-off-by: Mike Snitzer <snitzer@redhat.com>
2016-02-22 11:06:21 -05:00
Christoph Hellwig
e56f81e0b0 dm: refactor ioctl handling
This moves the call to blkdev_ioctl and the argument checking to DM core
code, and only leaves a callout to find the block device to operate on
in the targets.  This simplifies the code and allows us to pass through
ioctl-like command using other methods in the next patch.

Also split out a helper around calling the prepare_ioctl method that
will be reused for persistent reservation handling.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
2015-10-31 19:05:59 -04:00
Kent Overstreet
8ae126660f block: kill merge_bvec_fn() completely
As generic_make_request() is now able to handle arbitrarily sized bios,
it's no longer necessary for each individual block driver to define its
own ->merge_bvec_fn() callback. Remove every invocation completely.

Cc: Jens Axboe <axboe@kernel.dk>
Cc: Lars Ellenberg <drbd-dev@lists.linbit.com>
Cc: drbd-user@lists.linbit.com
Cc: Jiri Kosina <jkosina@suse.cz>
Cc: Yehuda Sadeh <yehuda@inktank.com>
Cc: Sage Weil <sage@inktank.com>
Cc: Alex Elder <elder@kernel.org>
Cc: ceph-devel@vger.kernel.org
Cc: Alasdair Kergon <agk@redhat.com>
Cc: Mike Snitzer <snitzer@redhat.com>
Cc: dm-devel@redhat.com
Cc: Neil Brown <neilb@suse.de>
Cc: linux-raid@vger.kernel.org
Cc: Christoph Hellwig <hch@infradead.org>
Cc: "Martin K. Petersen" <martin.petersen@oracle.com>
Acked-by: NeilBrown <neilb@suse.de> (for the 'md' bits)
Acked-by: Mike Snitzer <snitzer@redhat.com>
Signed-off-by: Kent Overstreet <kent.overstreet@gmail.com>
[dpark: also remove ->merge_bvec_fn() in dm-thin as well as
 dm-era-target, and resolve merge conflicts]
Signed-off-by: Dongsu Park <dpark@posteo.net>
Signed-off-by: Ming Lin <ming.l@ssi.samsung.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
2015-08-13 12:31:57 -06:00
Mike Snitzer
52b09914af dm: remove unnecessary wrapper around blk_lld_busy
There is no need for DM to export a wrapper around the already exported
blk_lld_busy().

Signed-off-by: Mike Snitzer <snitzer@redhat.com>
2015-03-31 12:03:49 -04:00
Mikulas Patocka
09ee96b214 dm snapshot: suspend merging snapshot when doing exception handover
The "dm snapshot: suspend origin when doing exception handover" commit
fixed a exception store handover bug associated with pending exceptions
to the "snapshot-origin" target.

However, a similar problem exists in snapshot merging.  When snapshot
merging is in progress, we use the target "snapshot-merge" instead of
"snapshot-origin".  Consequently, during exception store handover, we
must find the snapshot-merge target and suspend its associated
mapped_device.

To avoid lockdep warnings, the target must be suspended and resumed
without holding _origins_lock.

Introduce a dm_hold() function that grabs a reference on a
mapped_device, but unlike dm_get(), it doesn't crash if the device has
the DMF_FREEING flag set, it returns an error in this case.

In snapshot_resume() we grab the reference to the origin device using
dm_hold() while holding _origins_lock (_origins_lock guarantees that the
device won't disappear).  Then we release _origins_lock, suspend the
device and grab _origins_lock again.

NOTE to stable@ people:
When backporting to kernels 3.18 and older, use dm_internal_suspend and
dm_internal_resume instead of dm_internal_suspend_fast and
dm_internal_resume_fast.

Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Cc: stable@vger.kernel.org
2015-02-27 14:53:16 -05:00
Mike Snitzer
e5863d9ad7 dm: allocate requests in target when stacking on blk-mq devices
For blk-mq request-based DM the responsibility of allocating a cloned
request is transfered from DM core to the target type.  Doing so
enables the cloned request to be allocated from the appropriate
blk-mq request_queue's pool (only the DM target, e.g. multipath, can
know which block device to send a given cloned request to).

Care was taken to preserve compatibility with old-style block request
completion that requires request-based DM _not_ acquire the clone
request's queue lock in the completion path.  As such, there are now 2
different request-based DM target_type interfaces:
1) the original .map_rq() interface will continue to be used for
   non-blk-mq devices -- the preallocated clone request is passed in
   from DM core.
2) a new .clone_and_map_rq() and .release_clone_rq() will be used for
   blk-mq devices -- blk_get_request() and blk_put_request() are used
   respectively from these hooks.

dm_table_set_type() was updated to detect if the request-based target is
being stacked on blk-mq devices, if so DM_TYPE_MQ_REQUEST_BASED is set.
DM core disallows switching the DM table's type after it is set.  This
means that there is no mixing of non-blk-mq and blk-mq devices within
the same request-based DM table.

[This patch was started by Keith and later heavily modified by Mike]

Tested-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Keith Busch <keith.busch@intel.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
2015-02-09 13:06:47 -05:00
Mike Snitzer
dbf9782c10 dm: remove exports for request-based interfaces without external callers
Remove exports for dm_dispatch_request, dm_requeue_unmapped_request,
and dm_kill_unmapped_request.

Signed-off-by: Mike Snitzer <snitzer@redhat.com>
2015-02-09 12:59:48 -05:00
Mike Snitzer
d67ee213fa dm: add presuspend_undo hook to target_type
The DM thin-pool target now must undo the changes performed during
pool_presuspend() so introduce presuspend_undo hook in target_type.

Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Acked-by: Joe Thornber <ejt@redhat.com>
2014-11-19 11:24:59 -05:00
Mike Snitzer
11f0431be2 dm: remove symbol export for dm_set_device_limits
There is no need for code other than DM core to use dm_set_device_limits
so remove its EXPORT_SYMBOL_GPL.  Also, cleanup a couple whitespace nits.

Signed-off-by: Mike Snitzer <snitzer@redhat.com>
2014-06-04 09:46:34 -04:00