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3809 commits

Author SHA1 Message Date
Srinivasarao P
e4d7a03a83 Merge android-4.4-p.199 (3f5703c) into msm-4.4
* refs/heads/tmp-3f5703c
  Linux 4.4.199
  Revert "ALSA: hda: Flush interrupts on disabling"
  xfs: Correctly invert xfs_buftarg LRU isolation logic
  sctp: not bind the socket in sctp_connect
  sctp: fix the issue that flags are ignored when using kernel_connect
  sch_netem: fix rcu splat in netem_enqueue()
  net: usb: sr9800: fix uninitialized local variable
  bonding: fix potential NULL deref in bond_update_slave_arr
  llc: fix sk_buff leak in llc_conn_service()
  llc: fix sk_buff leak in llc_sap_state_process()
  rtlwifi: Fix potential overflow on P2P code
  s390/cmm: fix information leak in cmm_timeout_handler()
  nl80211: fix validation of mesh path nexthop
  HID: fix error message in hid_open_report()
  HID: Fix assumption that devices have inputs
  USB: serial: whiteheat: fix line-speed endianness
  USB: serial: whiteheat: fix potential slab corruption
  USB: ldusb: fix control-message timeout
  USB: ldusb: fix ring-buffer locking
  USB: gadget: Reject endpoints with 0 maxpacket value
  UAS: Revert commit 3ae62a42090f ("UAS: fix alignment of scatter/gather segments")
  ALSA: bebob: Fix prototype of helper function to return negative value
  fuse: truncate pending writes on O_TRUNC
  fuse: flush dirty data/metadata before non-truncate setattr
  ath6kl: fix a NULL-ptr-deref bug in ath6kl_usb_alloc_urb_from_pipe()
  thunderbolt: Use 32-bit writes when writing ring producer/consumer
  USB: legousbtower: fix a signedness bug in tower_probe()
  tracing: Initialize iter->seq after zeroing in tracing_read_pipe()
  NFSv4: Fix leak of clp->cl_acceptor string
  MIPS: fw: sni: Fix out of bounds init of o32 stack
  fs: ocfs2: fix a possible null-pointer dereference in ocfs2_info_scan_inode_alloc()
  fs: ocfs2: fix possible null-pointer dereferences in ocfs2_xa_prepare_entry()
  efi/x86: Do not clean dummy variable in kexec path
  efi/cper: Fix endianness of PCIe class code
  serial: mctrl_gpio: Check for NULL pointer
  fs: cifs: mute -Wunused-const-variable message
  RDMA/iwcm: Fix a lock inversion issue
  perf map: Fix overlapped map handling
  iio: fix center temperature of bmc150-accel-core
  exec: load_script: Do not exec truncated interpreter path
  usb: handle warm-reset port requests on hub resume
  scripts/setlocalversion: Improve -dirty check with git-status --no-optional-locks
  x86/cpu: Add Atom Tremont (Jacobsville)
  sc16is7xx: Fix for "Unexpected interrupt: 8"
  dm: Use kzalloc for all structs with embedded biosets/mempools
  dm snapshot: rework COW throttling to fix deadlock
  dm snapshot: introduce account_start_copy() and account_end_copy()
  dm snapshot: use mutex instead of rw_semaphore
  ANDROID: cpufreq: times: add /proc/uid_concurrent_{active,policy}_time

Conflicts:
	drivers/cpufreq/cpufreq_times.c

Change-Id: I2c27599db8577afa4853222b11d9aec20071e752
Signed-off-by: Srinivasarao P <spathi@codeaurora.org>
2019-11-11 12:19:30 +05:30
Vratislav Bendel
22668f45d6 xfs: Correctly invert xfs_buftarg LRU isolation logic
commit 19957a181608d25c8f4136652d0ea00b3738972d upstream.

Due to an inverted logic mistake in xfs_buftarg_isolate()
the xfs_buffers with zero b_lru_ref will take another trip
around LRU, while isolating buffers with non-zero b_lru_ref.

Additionally those isolated buffers end up right back on the LRU
once they are released, because b_lru_ref remains elevated.

Fix that circuitous route by leaving them on the LRU
as originally intended.

Signed-off-by: Vratislav Bendel <vbendel@redhat.com>
Reviewed-by: Brian Foster <bfoster@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Alex Lyakas <alex@zadara.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-11-06 12:09:25 +01:00
Srinivasarao P
313b40e20d Merge android-4.4-p.197 (93ec8fb) into msm-4.4
* refs/heads/tmp-93ec8fb
  Linux 4.4.197
  xfs: clear sb->s_fs_info on mount failure
  x86/asm: Fix MWAITX C-state hint value
  tracing: Get trace_array reference for available_tracers files
  media: stkwebcam: fix runtime PM after driver unbind
  CIFS: Force revalidate inode when dentry is stale
  cifs: Check uniqueid for SMB2+ and return -ESTALE if necessary
  Staging: fbtft: fix memory leak in fbtft_framebuffer_alloc
  arm64: Rename cpuid_feature field extract routines
  arm64: capabilities: Handle sign of the feature bit
  kernel/sysctl.c: do not override max_threads provided by userspace
  CIFS: Force reval dentry if LOOKUP_REVAL flag is set
  CIFS: Gracefully handle QueryInfo errors during open
  perf llvm: Don't access out-of-scope array
  iio: light: opt3001: fix mutex unlock race
  iio: adc: ad799x: fix probe error handling
  staging: vt6655: Fix memory leak in vt6655_probe
  USB: legousbtower: fix use-after-free on release
  USB: legousbtower: fix open after failed reset request
  USB: legousbtower: fix potential NULL-deref on disconnect
  USB: legousbtower: fix deadlock on disconnect
  USB: legousbtower: fix slab info leak at probe
  usb: renesas_usbhs: gadget: Fix usb_ep_set_{halt,wedge}() behavior
  usb: renesas_usbhs: gadget: Do not discard queues in usb_ep_set_{halt,wedge}()
  USB: dummy-hcd: fix power budget for SuperSpeed mode
  USB: microtek: fix info-leak at probe
  USB: usblcd: fix I/O after disconnect
  USB: serial: fix runtime PM after driver unbind
  USB: serial: option: add support for Cinterion CLS8 devices
  USB: serial: option: add Telit FN980 compositions
  USB: serial: ftdi_sio: add device IDs for Sienna and Echelon PL-20
  USB: serial: keyspan: fix NULL-derefs on open() and write()
  serial: uartlite: fix exit path null pointer
  USB: ldusb: fix NULL-derefs on driver unbind
  USB: chaoskey: fix use-after-free on release
  USB: usblp: fix runtime PM after driver unbind
  USB: iowarrior: fix use-after-free after driver unbind
  USB: iowarrior: fix use-after-free on release
  USB: iowarrior: fix use-after-free on disconnect
  USB: adutux: fix use-after-free on release
  USB: adutux: fix NULL-derefs on disconnect
  USB: adutux: fix use-after-free on disconnect
  USB: adutux: remove redundant variable minor
  xhci: Increase STS_SAVE timeout in xhci_suspend()
  usb: xhci: wait for CNR controller not ready bit in xhci resume
  xhci: Check all endpoints for LPM timeout
  xhci: Prevent device initiated U1/U2 link pm if exit latency is too long
  USB: usb-skeleton: fix NULL-deref on disconnect
  USB: usb-skeleton: fix runtime PM after driver unbind
  USB: yurex: fix NULL-derefs on disconnect
  USB: yurex: Don't retry on unexpected errors
  USB: rio500: Remove Rio 500 kernel driver
  panic: ensure preemption is disabled during panic()
  ASoC: sgtl5000: Improve VAG power and mute control
  nl80211: validate beacon head
  cfg80211: Use const more consistently in for_each_element macros
  cfg80211: add and use strongly typed element iteration macros
  crypto: caam - fix concurrency issue in givencrypt descriptor
  perf stat: Fix a segmentation fault when using repeat forever
  tools lib traceevent: Do not free tep->cmdlines in add_new_comm() on failure
  kernel/elfcore.c: include proper prototypes
  fuse: fix memleak in cuse_channel_open
  thermal: Fix use-after-free when unregistering thermal zone device
  drm/amdgpu: Check for valid number of registers to read
  ceph: fix directories inode i_blkbits initialization
  xen/pci: reserve MCFG areas earlier
  9p: avoid attaching writeback_fid on mmap with type PRIVATE
  fs: nfs: Fix possible null-pointer dereferences in encode_attrs()
  ima: always return negative code for error
  cfg80211: initialize on-stack chandefs
  ieee802154: atusb: fix use-after-free at disconnect
  crypto: qat - Silence smp_processor_id() warning
  can: mcp251x: mcp251x_hw_reset(): allow more time after a reset
  powerpc/powernv: Restrict OPAL symbol map to only be readable by root
  ASoC: Define a set of DAPM pre/post-up events
  KVM: nVMX: handle page fault in vmread fix
  s390/cio: exclude subchannels with no parent from pseudo check
  s390/cio: avoid calling strlen on null pointer
  s390/topology: avoid firing events before kobjs are created
  KVM: s390: Test for bad access register and size at the start of S390_MEM_OP

Change-Id: I948ef653eafcff32197e1886e13548b32be2d0ad
Signed-off-by: Srinivasarao P <spathi@codeaurora.org>
2019-10-30 16:38:04 +05:30
Dave Chinner
748edae843 xfs: clear sb->s_fs_info on mount failure
commit c9fbd7bbc23dbdd73364be4d045e5d3612cf6e82 upstream.

We recently had an oops reported on a 4.14 kernel in
xfs_reclaim_inodes_count() where sb->s_fs_info pointed to garbage
and so the m_perag_tree lookup walked into lala land.

Essentially, the machine was under memory pressure when the mount
was being run, xfs_fs_fill_super() failed after allocating the
xfs_mount and attaching it to sb->s_fs_info. It then cleaned up and
freed the xfs_mount, but the sb->s_fs_info field still pointed to
the freed memory. Hence when the superblock shrinker then ran
it fell off the bad pointer.

With the superblock shrinker problem fixed at teh VFS level, this
stale s_fs_info pointer is still a problem - we use it
unconditionally in ->put_super when the superblock is being torn
down, and hence we can still trip over it after a ->fill_super
call failure. Hence we need to clear s_fs_info if
xfs-fs_fill_super() fails, and we need to check if it's valid in
the places it can potentially be dereferenced after a ->fill_super
failure.

Signed-Off-By: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Ajay Kaher <akaher@vmware.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-10-17 13:41:06 -07:00
Srinivasarao P
dd21e159de Merge android-4.4.172 (b3e9e81) into msm-4.4
* refs/heads/tmp-b3e9e81
  Linux 4.4.172
  ipmi:ssif: Fix handling of multi-part return messages
  net: speed up skb_rbtree_purge()
  mm, proc: be more verbose about unstable VMA flags in /proc/<pid>/smaps
  mm/page-writeback.c: don't break integrity writeback on ->writepage() error
  ocfs2: fix panic due to unrecovered local alloc
  scsi: megaraid: fix out-of-bound array accesses
  sysfs: Disable lockdep for driver bind/unbind files
  ALSA: bebob: fix model-id of unit for Apogee Ensemble
  dm snapshot: Fix excessive memory usage and workqueue stalls
  dm kcopyd: Fix bug causing workqueue stalls
  perf parse-events: Fix unchecked usage of strncpy()
  perf svghelper: Fix unchecked usage of strncpy()
  perf intel-pt: Fix error with config term "pt=0"
  mmc: atmel-mci: do not assume idle after atmci_request_end
  kconfig: fix memory leak when EOF is encountered in quotation
  kconfig: fix file name and line number of warn_ignored_character()
  clk: imx6q: reset exclusive gates on init
  scsi: target: use consistent left-aligned ASCII INQUIRY data
  net: call sk_dst_reset when set SO_DONTROUTE
  media: firewire: Fix app_info parameter type in avc_ca{,_app}_info
  powerpc/pseries/cpuidle: Fix preempt warning
  pstore/ram: Do not treat empty buffers as valid
  jffs2: Fix use of uninitialized delayed_work, lockdep breakage
  arm64: perf: set suppress_bind_attrs flag to true
  MIPS: SiByte: Enable swiotlb for SWARM, LittleSur and BigSur
  writeback: don't decrement wb->refcnt if !wb->bdi
  e1000e: allow non-monotonic SYSTIM readings
  platform/x86: asus-wmi: Tell the EC the OS will handle the display off hotkey
  xfs: don't fail when converting shortform attr to long form during ATTR_REPLACE
  ipv6: Take rcu_read_lock in __inet6_bind for mapped addresses
  ipv6: Consider sk_bound_dev_if when binding a socket to a v4 mapped address
  r8169: Add support for new Realtek Ethernet
  media: vb2: be sure to unlock mutex on errors
  drm/fb-helper: Ignore the value of fb_var_screeninfo.pixclock
  loop: Fix double mutex_unlock(&loop_ctl_mutex) in loop_control_ioctl()
  loop: Get rid of loop_index_mutex
  loop: Fold __loop_release into loop_release
  block/loop: Use global lock for ioctl() operation.
  tipc: fix uninit-value in tipc_nl_compat_doit
  tipc: fix uninit-value in tipc_nl_compat_name_table_dump
  tipc: fix uninit-value in tipc_nl_compat_link_set
  tipc: fix uninit-value in tipc_nl_compat_bearer_enable
  tipc: fix uninit-value in tipc_nl_compat_link_reset_stats
  sctp: allocate sctp_sockaddr_entry with kzalloc
  selinux: fix GPF on invalid policy
  sunrpc: handle ENOMEM in rpcb_getport_async
  media: vb2: vb2_mmap: move lock up
  LSM: Check for NULL cred-security on free
  media: vivid: set min width/height to a value > 0
  media: vivid: fix error handling of kthread_run
  omap2fb: Fix stack memory disclosure
  Disable MSI also when pcie-octeon.pcie_disable on
  mfd: tps6586x: Handle interrupts on suspend
  mips: fix n32 compat_ipc_parse_version
  scsi: sd: Fix cache_type_store()
  Yama: Check for pid death before checking ancestry
  btrfs: wait on ordered extents on abort cleanup
  crypto: authenc - fix parsing key with misaligned rta_len
  crypto: authencesn - Avoid twice completion call in decrypt path
  ip: on queued skb use skb_header_pointer instead of pskb_may_pull
  packet: Do not leak dev refcounts on error exit
  net: bridge: fix a bug on using a neighbour cache entry without checking its state
  ipv6: fix kernel-infoleak in ipv6_local_error()
  arm64: Don't trap host pointer auth use to EL2
  arm64/kvm: consistently handle host HCR_EL2 flags
  proc: Remove empty line in /proc/self/status
  media: em28xx: Fix misplaced reset of dev->v4l::field_count
  f2fs: fix validation of the block count in sanity_check_raw_super
  f2fs: fix missing up_read
  f2fs: fix invalid memory access
  f2fs: fix to do sanity check with cp_pack_start_sum
  f2fs: fix to do sanity check with block address in main area v2
  f2fs: fix to do sanity check with block address in main area
  f2fs: fix to do sanity check with reserved blkaddr of inline inode
  f2fs: fix to do sanity check with node footer and iblocks
  f2fs: Add sanity_check_inode() function
  f2fs: fix to do sanity check with user_block_count
  f2fs: fix to do sanity check with secs_per_zone
  f2fs: introduce and spread verify_blkaddr
  f2fs: clean up with is_valid_blkaddr()
  f2fs: enhance sanity_check_raw_super() to avoid potential overflow
  f2fs: sanity check on sit entry
  f2fs: check blkaddr more accuratly before issue a bio
  f2fs: return error during fill_super
  f2fs: fix race condition in between free nid allocator/initializer
  f2fs: free meta pages if sanity check for ckpt is failed
  f2fs: detect wrong layout
  f2fs: fix to determine start_cp_addr by sbi->cur_cp_pack
  f2fs: put directory inodes before checkpoint in roll-forward recovery
  f2fs: introduce get_checkpoint_version for cleanup
  f2fs: use crc and cp version to determine roll-forward recovery
  f2fs: avoid unneeded loop in build_sit_entries
  f2fs: not allow to write illegal blkaddr
  f2fs: fix to avoid reading out encrypted data in page cache
  f2fs: fix inode cache leak
  f2fs: factor out fsync inode entry operations
  f2fs: remove an obsolete variable
  f2fs: give -EINVAL for norecovery and rw mount
  f2fs: fix to convert inline directory correctly
  f2fs: move sanity checking of cp into get_valid_checkpoint
  f2fs: cover more area with nat_tree_lock
  f2fs: clean up argument of recover_data
  can: gw: ensure DLC boundaries after CAN frame modification
  tty/ldsem: Wake up readers after timed out down_write()
  UPSTREAM: dm: do not allow readahead to limit IO size
  UPSTREAM: readahead: stricter check for bdi io_pages
  UPSTREAM: mm: don't cap request size based on read-ahead setting
  ANDROID: Fix cuttlefish redundant vsock connection.
  UPSTREAM: loop: drop caches if offset or block_size are changed

Conflicts:
	arch/arm64/kvm/hyp.S

Fixed compilation issue due to variable 'backing_dev_info',
which got changed to pointer in downstream.

Change-Id: I8baa569fe9fc13ed5a7e863e5ad1fb8cf1cd469e
Signed-off-by: Srinivasarao P <spathi@codeaurora.org>
2019-01-29 16:37:33 +05:30
Darrick J. Wong
f00ebf4f84 xfs: don't fail when converting shortform attr to long form during ATTR_REPLACE
commit 7b38460dc8e4eafba06c78f8e37099d3b34d473c upstream.

Kanda Motohiro reported that expanding a tiny xattr into a large xattr
fails on XFS because we remove the tiny xattr from a shortform fork and
then try to re-add it after converting the fork to extents format having
not removed the ATTR_REPLACE flag.  This fails because the attr is no
longer present, causing a fs shutdown.

This is derived from the patch in his bug report, but we really
shouldn't ignore a nonzero retval from the remove call.

Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=199119
Reported-by: kanda.motohiro@gmail.com
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Cc: Ben Hutchings <ben.hutchings@codethink.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-01-26 09:42:52 +01:00
Srinivasarao P
4ada752c32 Merge android-4.4.137 (a2e2217) into msm-4.4
* refs/heads/tmp-a2e2217
  Linux 4.4.137
  net: metrics: add proper netlink validation
  net: phy: broadcom: Fix bcm_write_exp()
  rtnetlink: validate attributes in do_setlink()
  team: use netdev_features_t instead of u32
  net/mlx4: Fix irq-unsafe spinlock usage
  qed: Fix mask for physical address in ILT entry
  packet: fix reserve calculation
  net: usb: cdc_mbim: add flag FLAG_SEND_ZLP
  net/packet: refine check for priv area size
  netdev-FAQ: clarify DaveM's position for stable backports
  isdn: eicon: fix a missing-check bug
  ipv4: remove warning in ip_recv_error
  ip6mr: only set ip6mr_table from setsockopt when ip6mr_new_table succeeds
  enic: set DMA mask to 47 bit
  dccp: don't free ccid2_hc_tx_sock struct in dccp_disconnect()
  bnx2x: use the right constant
  brcmfmac: Fix check for ISO3166 code
  drm: set FMODE_UNSIGNED_OFFSET for drm files
  xfs: fix incorrect log_flushed on fsync
  kconfig: Avoid format overflow warning from GCC 8.1
  mmap: relax file size limit for regular files
  mmap: introduce sane default mmap limits
  tpm: self test failure should not cause suspend to fail
  tpm: do not suspend/resume if power stays on
  ANDROID: Update arm64 ranchu64_defconfig
  Linux 4.4.136
  sparc64: Fix build warnings with gcc 7.
  mm: fix the NULL mapping case in __isolate_lru_page()
  fix io_destroy()/aio_complete() race
  Kbuild: change CC_OPTIMIZE_FOR_SIZE definition
  drm/i915: Disable LVDS on Radiant P845
  hwtracing: stm: fix build error on some arches
  stm class: Use vmalloc for the master map
  scsi: scsi_transport_srp: Fix shost to rport translation
  MIPS: prctl: Disallow FRE without FR with PR_SET_FP_MODE requests
  MIPS: ptrace: Fix PTRACE_PEEKUSR requests for 64-bit FGRs
  iio:kfifo_buf: check for uint overflow
  dmaengine: usb-dmac: fix endless loop in usb_dmac_chan_terminate_all()
  i2c: rcar: revoke START request early
  i2c: rcar: check master irqs before slave irqs
  i2c: rcar: don't issue stop when HW does it automatically
  i2c: rcar: init new messages in irq
  i2c: rcar: refactor setup of a msg
  i2c: rcar: remove spinlock
  i2c: rcar: remove unused IOERROR state
  i2c: rcar: rework hw init
  i2c: rcar: make sure clocks are on when doing clock calculation
  tcp: avoid integer overflows in tcp_rcv_space_adjust()
  irda: fix overly long udelay()
  ASoC: Intel: sst: remove redundant variable dma_dev_name
  rtlwifi: rtl8192cu: Remove variable self-assignment in rf.c
  cfg80211: further limit wiphy names to 64 bytes
  selinux: KASAN: slab-out-of-bounds in xattr_getsecurity
  tracing: Fix crash when freeing instances with event triggers
  Input: elan_i2c_smbus - fix corrupted stack
  Revert "ima: limit file hash setting by user to fix and log modes"
  xfs: detect agfl count corruption and reset agfl
  sh: New gcc support
  USB: serial: cp210x: use tcflag_t to fix incompatible pointer type
  powerpc/64s: Clear PCR on boot
  arm64: lse: Add early clobbers to some input/output asm operands
  FROMLIST: f2fs: run fstrim asynchronously if runtime discard is on
  goldfish: pipe: ANDROID: address must be written as __pa(x), not x
  goldfish: pipe: ANDROID: add missing check for memory allocated
  goldfish: pipe: ANDROID: remove redundant blank lines
  Update arch/x86/configs/x86_64_ranchu_defconfig
  ANDROID: x86_64_cuttlefish_defconfig: Enable F2FS
  ANDROID: Update x86_64_cuttlefish_defconfig
  FROMLIST: f2fs: early updates queued for v4.18-rc1

Change-Id: I314254168cd5ad06a7c6bca2fa68c8a6ae6c257d
Signed-off-by: Srinivasarao P <spathi@codeaurora.org>
2018-06-27 14:45:25 +05:30
Srinivasarao P
f9cff13b5d Merge android-4.4.135 (c9d74f2) into msm-4.4
* refs/heads/tmp-c9d74f2
  Linux 4.4.135
  Revert "vti4: Don't override MTU passed on link creation via IFLA_MTU"
  Revert "vti4: Don't override MTU passed on link creation via IFLA_MTU"
  Linux 4.4.134
  s390/ftrace: use expoline for indirect branches
  kdb: make "mdr" command repeat
  Bluetooth: btusb: Add device ID for RTL8822BE
  ASoC: samsung: i2s: Ensure the RCLK rate is properly determined
  regulator: of: Add a missing 'of_node_put()' in an error handling path of 'of_regulator_match()'
  scsi: lpfc: Fix frequency of Release WQE CQEs
  scsi: lpfc: Fix soft lockup in lpfc worker thread during LIP testing
  scsi: lpfc: Fix issue_lip if link is disabled
  netlabel: If PF_INET6, check sk_buff ip header version
  selftests/net: fixes psock_fanout eBPF test case
  perf report: Fix memory corruption in --branch-history mode --branch-history
  perf tests: Use arch__compare_symbol_names to compare symbols
  x86/apic: Set up through-local-APIC mode on the boot CPU if 'noapic' specified
  drm/rockchip: Respect page offset for PRIME mmap calls
  MIPS: Octeon: Fix logging messages with spurious periods after newlines
  audit: return on memory error to avoid null pointer dereference
  crypto: sunxi-ss - Add MODULE_ALIAS to sun4i-ss
  clk: samsung: exynos3250: Fix PLL rates
  clk: samsung: exynos5250: Fix PLL rates
  clk: samsung: exynos5433: Fix PLL rates
  clk: samsung: exynos5260: Fix PLL rates
  clk: samsung: s3c2410: Fix PLL rates
  media: cx25821: prevent out-of-bounds read on array card
  udf: Provide saner default for invalid uid / gid
  PCI: Add function 1 DMA alias quirk for Marvell 88SE9220
  serial: arc_uart: Fix out-of-bounds access through DT alias
  serial: fsl_lpuart: Fix out-of-bounds access through DT alias
  serial: imx: Fix out-of-bounds access through serial port index
  serial: mxs-auart: Fix out-of-bounds access through serial port index
  serial: samsung: Fix out-of-bounds access through serial port index
  serial: xuartps: Fix out-of-bounds access through DT alias
  rtc: tx4939: avoid unintended sign extension on a 24 bit shift
  staging: rtl8192u: return -ENOMEM on failed allocation of priv->oldaddr
  hwrng: stm32 - add reset during probe
  enic: enable rq before updating rq descriptors
  clk: rockchip: Prevent calculating mmc phase if clock rate is zero
  media: em28xx: USB bulk packet size fix
  dmaengine: pl330: fix a race condition in case of threaded irqs
  media: s3c-camif: fix out-of-bounds array access
  media: cx23885: Set subdev host data to clk_freq pointer
  media: cx23885: Override 888 ImpactVCBe crystal frequency
  ALSA: vmaster: Propagate slave error
  x86/devicetree: Fix device IRQ settings in DT
  x86/devicetree: Initialize device tree before using it
  usb: gadget: composite: fix incorrect handling of OS desc requests
  usb: gadget: udc: change comparison to bitshift when dealing with a mask
  gfs2: Fix fallocate chunk size
  cdrom: do not call check_disk_change() inside cdrom_open()
  hwmon: (pmbus/adm1275) Accept negative page register values
  hwmon: (pmbus/max8688) Accept negative page register values
  perf/core: Fix perf_output_read_group()
  ASoC: topology: create TLV data for dapm widgets
  powerpc: Add missing prototype for arch_irq_work_raise()
  usb: gadget: ffs: Execute copy_to_user() with USER_DS set
  usb: gadget: ffs: Let setup() return USB_GADGET_DELAYED_STATUS
  usb: dwc2: Fix interval type issue
  ipmi_ssif: Fix kernel panic at msg_done_handler
  PCI: Restore config space on runtime resume despite being unbound
  MIPS: ath79: Fix AR724X_PLL_REG_PCIE_CONFIG offset
  xhci: zero usb device slot_id member when disabling and freeing a xhci slot
  KVM: lapic: stop advertising DIRECTED_EOI when in-kernel IOAPIC is in use
  i2c: mv64xxx: Apply errata delay only in standard mode
  ACPICA: acpi: acpica: fix acpi operand cache leak in nseval.c
  ACPICA: Events: add a return on failure from acpi_hw_register_read
  bcache: quit dc->writeback_thread when BCACHE_DEV_DETACHING is set
  zorro: Set up z->dev.dma_mask for the DMA API
  clk: Don't show the incorrect clock phase
  cpufreq: cppc_cpufreq: Fix cppc_cpufreq_init() failure path
  usb: dwc3: Update DWC_usb31 GTXFIFOSIZ reg fields
  arm: dts: socfpga: fix GIC PPI warning
  virtio-net: Fix operstate for virtio when no VIRTIO_NET_F_STATUS
  ima: Fallback to the builtin hash algorithm
  ima: Fix Kconfig to select TPM 2.0 CRB interface
  ath10k: Fix kernel panic while using worker (ath10k_sta_rc_update_wk)
  net/mlx5: Protect from command bit overflow
  selftests: Print the test we're running to /dev/kmsg
  tools/thermal: tmon: fix for segfault
  powerpc/perf: Fix kernel address leak via sampling registers
  powerpc/perf: Prevent kernel address leak to userspace via BHRB buffer
  rtc: hctosys: Ensure system time doesn't overflow time_t
  hwmon: (nct6775) Fix writing pwmX_mode
  parisc/pci: Switch LBA PCI bus from Hard Fail to Soft Fail mode
  m68k: set dma and coherent masks for platform FEC ethernets
  powerpc/mpic: Check if cpu_possible() in mpic_physmask()
  ACPI: acpi_pad: Fix memory leak in power saving threads
  xen/acpi: off by one in read_acpi_id()
  btrfs: fix lockdep splat in btrfs_alloc_subvolume_writers
  Btrfs: fix copy_items() return value when logging an inode
  btrfs: tests/qgroup: Fix wrong tree backref level
  Bluetooth: btusb: Add USB ID 7392:a611 for Edimax EW-7611ULB
  net: bgmac: Fix endian access in bgmac_dma_tx_ring_free()
  rtc: snvs: Fix usage of snvs_rtc_enable
  sparc64: Make atomic_xchg() an inline function rather than a macro.
  fscache: Fix hanging wait on page discarded by writeback
  KVM: VMX: raise internal error for exception during invalid protected mode state
  sched/rt: Fix rq->clock_update_flags < RQCF_ACT_SKIP warning
  ocfs2/dlm: don't handle migrate lockres if already in shutdown
  btrfs: Fix possible softlock on single core machines
  Btrfs: fix NULL pointer dereference in log_dir_items
  Btrfs: bail out on error during replay_dir_deletes
  mm: fix races between address_space dereference and free in page_evicatable
  mm/ksm: fix interaction with THP
  dp83640: Ensure against premature access to PHY registers after reset
  scsi: aacraid: Insure command thread is not recursively stopped
  cpufreq: CPPC: Initialize shared perf capabilities of CPUs
  Force log to disk before reading the AGF during a fstrim
  sr: get/drop reference to device in revalidate and check_events
  swap: divide-by-zero when zero length swap file on ssd
  fs/proc/proc_sysctl.c: fix potential page fault while unregistering sysctl table
  x86/pgtable: Don't set huge PUD/PMD on non-leaf entries
  sh: fix debug trap failure to process signals before return to user
  net: mvneta: fix enable of all initialized RXQs
  net: Fix untag for vlan packets without ethernet header
  mm/kmemleak.c: wait for scan completion before disabling free
  llc: properly handle dev_queue_xmit() return value
  net-usb: add qmi_wwan if on lte modem wistron neweb d18q1
  net/usb/qmi_wwan.c: Add USB id for lt4120 modem
  net: qmi_wwan: add BroadMobi BM806U 2020:2033
  ARM: 8748/1: mm: Define vdso_start, vdso_end as array
  batman-adv: fix packet loss for broadcasted DHCP packets to a server
  batman-adv: fix multicast-via-unicast transmission with AP isolation
  selftests: ftrace: Add a testcase for probepoint
  selftests: ftrace: Add a testcase for string type with kprobe_event
  selftests: ftrace: Add probe event argument syntax testcase
  mm/mempolicy.c: avoid use uninitialized preferred_node
  RDMA/ucma: Correct option size check using optlen
  perf/cgroup: Fix child event counting bug
  vti4: Don't override MTU passed on link creation via IFLA_MTU
  vti4: Don't count header length twice on tunnel setup
  batman-adv: fix header size check in batadv_dbg_arp()
  net: Fix vlan untag for bridge and vlan_dev with reorder_hdr off
  sunvnet: does not support GSO for sctp
  ipv4: lock mtu in fnhe when received PMTU < net.ipv4.route.min_pmtu
  workqueue: use put_device() instead of kfree()
  bnxt_en: Check valid VNIC ID in bnxt_hwrm_vnic_set_tpa().
  netfilter: ebtables: fix erroneous reject of last rule
  USB: OHCI: Fix NULL dereference in HCDs using HCD_LOCAL_MEM
  xen: xenbus: use put_device() instead of kfree()
  fbdev: Fixing arbitrary kernel leak in case FBIOGETCMAP_SPARC in sbusfb_ioctl_helper().
  scsi: sd: Keep disk read-only when re-reading partition
  scsi: mpt3sas: Do not mark fw_event workqueue as WQ_MEM_RECLAIM
  usb: musb: call pm_runtime_{get,put}_sync before reading vbus registers
  e1000e: allocate ring descriptors with dma_zalloc_coherent
  e1000e: Fix check_for_link return value with autoneg off
  watchdog: f71808e_wdt: Fix magic close handling
  KVM: PPC: Book3S HV: Fix VRMA initialization with 2MB or 1GB memory backing
  selftests/powerpc: Skip the subpage_prot tests if the syscall is unavailable
  Btrfs: send, fix issuing write op when processing hole in no data mode
  xen/pirq: fix error path cleanup when binding MSIs
  net/tcp/illinois: replace broken algorithm reference link
  gianfar: Fix Rx byte accounting for ndev stats
  sit: fix IFLA_MTU ignored on NEWLINK
  bcache: fix kcrashes with fio in RAID5 backend dev
  dmaengine: rcar-dmac: fix max_chunk_size for R-Car Gen3
  virtio-gpu: fix ioctl and expose the fixed status to userspace.
  r8152: fix tx packets accounting
  clocksource/drivers/fsl_ftm_timer: Fix error return checking
  nvme-pci: Fix nvme queue cleanup if IRQ setup fails
  netfilter: ebtables: convert BUG_ONs to WARN_ONs
  batman-adv: invalidate checksum on fragment reassembly
  batman-adv: fix packet checksum in receive path
  md/raid1: fix NULL pointer dereference
  media: dmxdev: fix error code for invalid ioctls
  x86/topology: Update the 'cpu cores' field in /proc/cpuinfo correctly across CPU hotplug operations
  locking/xchg/alpha: Fix xchg() and cmpxchg() memory ordering bugs
  regulatory: add NUL to request alpha2
  smsc75xx: fix smsc75xx_set_features()
  ARM: OMAP: Fix dmtimer init for omap1
  s390/cio: clear timer when terminating driver I/O
  s390/cio: fix return code after missing interrupt
  powerpc/bpf/jit: Fix 32-bit JIT for seccomp_data access
  kernel/relay.c: limit kmalloc size to KMALLOC_MAX_SIZE
  md: raid5: avoid string overflow warning
  locking/xchg/alpha: Add unconditional memory barrier to cmpxchg()
  usb: musb: fix enumeration after resume
  drm/exynos: fix comparison to bitshift when dealing with a mask
  md raid10: fix NULL deference in handle_write_completed()
  mac80211: round IEEE80211_TX_STATUS_HEADROOM up to multiple of 4
  NFC: llcp: Limit size of SDP URI
  ARM: OMAP1: clock: Fix debugfs_create_*() usage
  ARM: OMAP3: Fix prm wake interrupt for resume
  ARM: OMAP2+: timer: fix a kmemleak caused in omap_get_timer_dt
  scsi: qla4xxx: skip error recovery in case of register disconnect.
  scsi: aacraid: fix shutdown crash when init fails
  scsi: storvsc: Increase cmd_per_lun for higher speed devices
  selftests: memfd: add config fragment for fuse
  usb: dwc2: Fix dwc2_hsotg_core_init_disconnected()
  usb: gadget: fsl_udc_core: fix ep valid checks
  usb: gadget: f_uac2: fix bFirstInterface in composite gadget
  ARC: Fix malformed ARC_EMUL_UNALIGNED default
  scsi: qla2xxx: Avoid triggering undefined behavior in qla2x00_mbx_completion()
  scsi: mptfusion: Add bounds check in mptctl_hp_targetinfo()
  scsi: sym53c8xx_2: iterator underflow in sym_getsync()
  scsi: bnx2fc: Fix check in SCSI completion handler for timed out request
  scsi: ufs: Enable quirk to ignore sending WRITE_SAME command
  irqchip/gic-v3: Change pr_debug message to pr_devel
  locking/qspinlock: Ensure node->count is updated before initialising node
  tools/libbpf: handle issues with bpf ELF objects containing .eh_frames
  bcache: return attach error when no cache set exist
  bcache: fix for data collapse after re-attaching an attached device
  bcache: fix for allocator and register thread race
  bcache: properly set task state in bch_writeback_thread()
  cifs: silence compiler warnings showing up with gcc-8.0.0
  proc: fix /proc/*/map_files lookup
  arm64: spinlock: Fix theoretical trylock() A-B-A with LSE atomics
  RDS: IB: Fix null pointer issue
  xen/grant-table: Use put_page instead of free_page
  xen-netfront: Fix race between device setup and open
  MIPS: TXx9: use IS_BUILTIN() for CONFIG_LEDS_CLASS
  bpf: fix selftests/bpf test_kmod.sh failure when CONFIG_BPF_JIT_ALWAYS_ON=y
  ACPI: processor_perflib: Do not send _PPC change notification if not ready
  firmware: dmi_scan: Fix handling of empty DMI strings
  x86/power: Fix swsusp_arch_resume prototype
  IB/ipoib: Fix for potential no-carrier state
  mm: pin address_space before dereferencing it while isolating an LRU page
  asm-generic: provide generic_pmdp_establish()
  mm/mempolicy: add nodes_empty check in SYSC_migrate_pages
  mm/mempolicy: fix the check of nodemask from user
  ocfs2: return error when we attempt to access a dirty bh in jbd2
  ocfs2/acl: use 'ip_xattr_sem' to protect getting extended attribute
  ocfs2: return -EROFS to mount.ocfs2 if inode block is invalid
  ntb_transport: Fix bug with max_mw_size parameter
  RDMA/mlx5: Avoid memory leak in case of XRCD dealloc failure
  powerpc/numa: Ensure nodes initialized for hotplug
  powerpc/numa: Use ibm,max-associativity-domains to discover possible nodes
  jffs2: Fix use-after-free bug in jffs2_iget()'s error handling path
  HID: roccat: prevent an out of bounds read in kovaplus_profile_activated()
  scsi: fas216: fix sense buffer initialization
  Btrfs: fix scrub to repair raid6 corruption
  btrfs: Fix out of bounds access in btrfs_search_slot
  Btrfs: set plug for fsync
  ipmi/powernv: Fix error return code in ipmi_powernv_probe()
  mac80211_hwsim: fix possible memory leak in hwsim_new_radio_nl()
  kconfig: Fix expr_free() E_NOT leak
  kconfig: Fix automatic menu creation mem leak
  kconfig: Don't leak main menus during parsing
  watchdog: sp5100_tco: Fix watchdog disable bit
  nfs: Do not convert nfs_idmap_cache_timeout to jiffies
  dm thin: fix documentation relative to low water mark threshold
  tools lib traceevent: Fix get_field_str() for dynamic strings
  perf callchain: Fix attr.sample_max_stack setting
  tools lib traceevent: Simplify pointer print logic and fix %pF
  PCI: Add function 1 DMA alias quirk for Marvell 9128
  tracing/hrtimer: Fix tracing bugs by taking all clock bases and modes into account
  kvm: x86: fix KVM_XEN_HVM_CONFIG ioctl
  ASoC: au1x: Fix timeout tests in au1xac97c_ac97_read()
  ALSA: hda - Use IS_REACHABLE() for dependency on input
  NFSv4: always set NFS_LOCK_LOST when a lock is lost.
  firewire-ohci: work around oversized DMA reads on JMicron controllers
  do d_instantiate/unlock_new_inode combinations safely
  xfs: remove racy hasattr check from attr ops
  kernel/signal.c: avoid undefined behaviour in kill_something_info
  kernel/sys.c: fix potential Spectre v1 issue
  kasan: fix memory hotplug during boot
  ipc/shm: fix shmat() nil address after round-down when remapping
  Revert "ipc/shm: Fix shmat mmap nil-page protection"
  xen-swiotlb: fix the check condition for xen_swiotlb_free_coherent
  libata: blacklist Micron 500IT SSD with MU01 firmware
  libata: Blacklist some Sandisk SSDs for NCQ
  mmc: sdhci-iproc: fix 32bit writes for TRANSFER_MODE register
  ALSA: timer: Fix pause event notification
  aio: fix io_destroy(2) vs. lookup_ioctx() race
  affs_lookup(): close a race with affs_remove_link()
  KVM: Fix spelling mistake: "cop_unsuable" -> "cop_unusable"
  MIPS: Fix ptrace(2) PTRACE_PEEKUSR and PTRACE_POKEUSR accesses to o32 FGRs
  MIPS: ptrace: Expose FIR register through FP regset
  UPSTREAM: sched/fair: Consider RT/IRQ pressure in capacity_spare_wake

Conflicts:
	drivers/media/dvb-core/dmxdev.c
	drivers/scsi/sd.c
	drivers/scsi/ufs/ufshcd.c
	drivers/usb/gadget/function/f_fs.c
	fs/ecryptfs/inode.c

Change-Id: I15751ed8c82ec65ba7eedcb0d385b9f803c333f7
Signed-off-by: Srinivasarao P <spathi@codeaurora.org>
2018-06-27 14:42:55 +05:30
Amir Goldstein
66824bdf4c xfs: fix incorrect log_flushed on fsync
commit 47c7d0b19502583120c3f396c7559e7a77288a68 upstream.

When calling into _xfs_log_force{,_lsn}() with a pointer
to log_flushed variable, log_flushed will be set to 1 if:
1. xlog_sync() is called to flush the active log buffer
AND/OR
2. xlog_wait() is called to wait on a syncing log buffers

xfs_file_fsync() checks the value of log_flushed after
_xfs_log_force_lsn() call to optimize away an explicit
PREFLUSH request to the data block device after writing
out all the file's pages to disk.

This optimization is incorrect in the following sequence of events:

 Task A                    Task B
 -------------------------------------------------------
 xfs_file_fsync()
   _xfs_log_force_lsn()
     xlog_sync()
        [submit PREFLUSH]
                           xfs_file_fsync()
                             file_write_and_wait_range()
                               [submit WRITE X]
                               [endio  WRITE X]
                             _xfs_log_force_lsn()
                               xlog_wait()
        [endio  PREFLUSH]

The write X is not guarantied to be on persistent storage
when PREFLUSH request in completed, because write A was submitted
after the PREFLUSH request, but xfs_file_fsync() of task A will
be notified of log_flushed=1 and will skip explicit flush.

If the system crashes after fsync of task A, write X may not be
present on disk after reboot.

This bug was discovered and demonstrated using Josef Bacik's
dm-log-writes target, which can be used to record block io operations
and then replay a subset of these operations onto the target device.
The test goes something like this:
- Use fsx to execute ops of a file and record ops on log device
- Every now and then fsync the file, store md5 of file and mark
  the location in the log
- Then replay log onto device for each mark, mount fs and compare
  md5 of file to stored value

Cc: Christoph Hellwig <hch@lst.de>
Cc: Josef Bacik <jbacik@fb.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Amir Goldstein <amir73il@gmail.com>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-06-13 16:15:27 +02:00
Brian Foster
55ffb6acd2 xfs: detect agfl count corruption and reset agfl
commit a27ba2607e60312554cbcd43fc660b2c7f29dc9c upstream.

The struct xfs_agfl v5 header was originally introduced with
unexpected padding that caused the AGFL to operate with one less
slot than intended. The header has since been packed, but the fix
left an incompatibility for users who upgrade from an old kernel
with the unpacked header to a newer kernel with the packed header
while the AGFL happens to wrap around the end. The newer kernel
recognizes one extra slot at the physical end of the AGFL that the
previous kernel did not. The new kernel will eventually attempt to
allocate a block from that slot, which contains invalid data, and
cause a crash.

This condition can be detected by comparing the active range of the
AGFL to the count. While this detects a padding mismatch, it can
also trigger false positives for unrelated flcount corruption. Since
we cannot distinguish a size mismatch due to padding from unrelated
corruption, we can't trust the AGFL enough to simply repopulate the
empty slot.

Instead, avoid unnecessarily complex detection logic and and use a
solution that can handle any form of flcount corruption that slips
through read verifiers: distrust the entire AGFL and reset it to an
empty state. Any valid blocks within the AGFL are intentionally
leaked. This requires xfs_repair to rectify (which was already
necessary based on the state the AGFL was found in). The reset
mitigates the side effect of the padding mismatch problem from a
filesystem crash to a free space accounting inconsistency. The
generic approach also means that this patch can be safely backported
to kernels with or without a packed struct xfs_agfl.

Check the AGF for an invalid freelist count on initial read from
disk. If detected, set a flag on the xfs_perag to indicate that a
reset is required before the AGFL can be used. In the first
transaction that attempts to use a flagged AGFL, reset it to empty,
warn the user about the inconsistency and allow the freelist fixup
code to repopulate the AGFL with new blocks. The xfs_perag flag is
cleared to eliminate the need for repeated checks on each block
allocation operation.

This allows kernels that include the packing fix commit 96f859d52bcb
("libxfs: pack the agfl header structure so XFS_AGFL_SIZE is correct")
to handle older unpacked AGFL formats without a filesystem crash.

Suggested-by: Dave Chinner <david@fromorbit.com>
Signed-off-by: Brian Foster <bfoster@redhat.com>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by Dave Chiluk <chiluk+linuxxfs@indeed.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Dave Chiluk <chiluk+linuxxfs@indeed.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-06-06 16:46:20 +02:00
Carlos Maiolino
72422ef801 Force log to disk before reading the AGF during a fstrim
[ Upstream commit 8c81dd46ef3c416b3b95e3020fb90dbd44e6140b ]

Forcing the log to disk after reading the agf is wrong, we might be
calling xfs_log_force with XFS_LOG_SYNC with a metadata lock held.

This can cause a deadlock when racing a fstrim with a filesystem
shutdown.

The deadlock has been identified due a miscalculation bug in device-mapper
dm-thin, which returns lack of space to its users earlier than the device itself
really runs out of space, changing the device-mapper volume into an error state.

The problem happened while filling the filesystem with a single file,
triggering the bug in device-mapper, consequently causing an IO error
and shutting down the filesystem.

If such file is removed, and fstrim executed before the XFS finishes the
shut down process, the fstrim process will end up holding the buffer
lock, and going to sleep on the cil wait queue.

At this point, the shut down process will try to wake up all the threads
waiting on the cil wait queue, but for this, it will try to hold the
same buffer log already held my the fstrim, locking up the filesystem.

Signed-off-by: Carlos Maiolino <cmaiolino@redhat.com>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-05-30 07:49:07 +02:00
Brian Foster
1a54258e10 xfs: remove racy hasattr check from attr ops
commit 5a93790d4e2df73e30c965ec6e49be82fc3ccfce upstream.

xfs_attr_[get|remove]() have unlocked attribute fork checks to optimize
away a lock cycle in cases where the fork does not exist or is otherwise
empty. This check is not safe, however, because an attribute fork short
form to extent format conversion includes a transient state that causes
the xfs_inode_hasattr() check to fail. Specifically,
xfs_attr_shortform_to_leaf() creates an empty extent format attribute
fork and then adds the existing shortform attributes to it.

This means that lookup of an existing xattr can spuriously return
-ENOATTR when racing against a setxattr that causes the associated
format conversion. This was originally reproduced by an untar on a
particularly configured glusterfs volume, but can also be reproduced on
demand with properly crafted xattr requests.

The format conversion occurs under the exclusive ilock. xfs_attr_get()
and xfs_attr_remove() already have the proper locking and checks further
down in the functions to handle this situation correctly. Drop the
unlocked checks to avoid the spurious failure and rely on the existing
logic.

Signed-off-by: Brian Foster <bfoster@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Cc: Daniel Sangorrin <daniel.sangorrin@toshiba.co.jp>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-05-30 07:48:52 +02:00
Srinivasarao P
a0cf9875da Merge android-4.4.132 (46155cc) into msm-4.4
* refs/heads/tmp-46155cc
  Linux 4.4.132
  perf/x86: Fix possible Spectre-v1 indexing for x86_pmu::event_map()
  perf/core: Fix possible Spectre-v1 indexing for ->aux_pages[]
  perf/x86/msr: Fix possible Spectre-v1 indexing in the MSR driver
  perf/x86/cstate: Fix possible Spectre-v1 indexing for pkg_msr
  perf/x86: Fix possible Spectre-v1 indexing for hw_perf_event cache_*
  tracing/uprobe_event: Fix strncpy corner case
  Revert "Bluetooth: btusb: Fix quirk for Atheros 1525/QCA6174"
  atm: zatm: Fix potential Spectre v1
  net: atm: Fix potential Spectre v1
  can: kvaser_usb: Increase correct stats counter in kvaser_usb_rx_can_msg()
  tracing: Fix regex_match_front() to not over compare the test string
  libata: Apply NOLPM quirk for SanDisk SD7UB3Q*G1001 SSDs
  rfkill: gpio: fix memory leak in probe error path
  xfrm_user: fix return value from xfrm_user_rcv_msg
  f2fs: fix a dead loop in f2fs_fiemap()
  bdi: Fix oops in wb_workfn()
  tcp: fix TCP_REPAIR_QUEUE bound checking
  perf: Remove superfluous allocation error check
  soreuseport: initialise timewait reuseport field
  dccp: initialize ireq->ir_mark
  net: fix uninit-value in __hw_addr_add_ex()
  net: initialize skb->peeked when cloning
  net: fix rtnh_ok()
  netlink: fix uninit-value in netlink_sendmsg
  crypto: af_alg - fix possible uninit-value in alg_bind()
  ipvs: fix rtnl_lock lockups caused by start_sync_thread
  usb: musb: host: fix potential NULL pointer dereference
  USB: serial: option: adding support for ublox R410M
  USB: serial: option: reimplement interface masking
  USB: Accept bulk endpoints with 1024-byte maxpacket
  USB: serial: visor: handle potential invalid device configuration
  test_firmware: fix setting old custom fw path back on exit, second try
  drm/vmwgfx: Fix a buffer object leak
  IB/mlx5: Use unlimited rate when static rate is not supported
  NET: usb: qmi_wwan: add support for ublox R410M PID 0x90b2
  RDMA/mlx5: Protect from shift operand overflow
  RDMA/ucma: Allow resolving address w/o specifying source address
  xfs: prevent creating negative-sized file via INSERT_RANGE
  Input: atmel_mxt_ts - add touchpad button mapping for Samsung Chromebook Pro
  Input: leds - fix out of bound access
  tracepoint: Do not warn on ENOMEM
  ALSA: aloop: Add missing cable lock to ctl API callbacks
  ALSA: aloop: Mark paused device as inactive
  ALSA: seq: Fix races at MIDI encoding in snd_virmidi_output_trigger()
  ALSA: pcm: Check PCM state at xfern compat ioctl
  USB: serial: option: Add support for Quectel EP06
  gpmi-nand: Handle ECC Errors in erased pages
  ath10k: rebuild crypto header in rx data frames
  ath10k: fix rfc1042 header retrieval in QCA4019 with eth decap mode
  mac80211: Add RX flag to indicate ICV stripped
  mac80211: allow same PN for AMSDU sub-frames
  mac80211: allow not sending MIC up from driver for HW crypto
  percpu: include linux/sched.h for cond_resched()
  KVM: s390: Enable all facility bits that are known good for passthrough
  bpf: map_get_next_key to return first key on NULL
  perf/core: Fix the perf_cpu_time_max_percent check
  goldfish: pipe: ANDROID: mark local functions static
  Revert "goldfish: pipe: ANDROID: Allocate memory with GFP_KERNEL."
  UPSTREAM: ANDROID: binder: prevent transactions into own process.
  goldfish: pipe: ANDROID: Add DMA support
  UPSTREAM: f2fs: clear PageError on writepage - part 2
  UPSTREAM: f2fs: avoid fsync() failure caused by EAGAIN in writepage()
  ANDROID: build.config: enforce trace_printk check
  ANDROID: x86_64_cuttlefish_defconfig: Disable KPTI
  UPSTREAM: mac80211: ibss: Fix channel type enum in ieee80211_sta_join_ibss()
  UPSTREAM: mac80211: Fix clang warning about constant operand in logical operation
  UPSTREAM: nl80211: Fix enum type of variable in nl80211_put_sta_rate()
  UPSTREAM: sysfs: remove signedness from sysfs_get_dirent
  UPSTREAM: tracing: Use cpumask_available() to check if cpumask variable may be used
  BACKPORT: clocksource: Use GENMASK_ULL in definition of CLOCKSOURCE_MASK
  UPSTREAM: netpoll: Fix device name check in netpoll_setup()
  FROMLIST: staging: Fix sparse warnings in vsoc driver.
  FROMLIST: staging: vsoc: Fix a i386-randconfig warning.
  FROMLIST: staging: vsoc: Create wc kernel mapping for region shm.
  Revert "goldfish: pipe: ANDROID: remove a redundant target"
  goldfish: pipe: ANDROID: Replace writel with gf_write_ptr
  goldfish: pipe: ANDROID: Use dev_ logging instead of pr_
  goldfish: pipe: ANDROID: fix checkpatch warnings
  goldfish: pipe: ANDROID: Update module license

Conflicts:
	drivers/net/wireless/ath/ath10k/core.c
	drivers/net/wireless/ath/ath10k/core.h
	drivers/net/wireless/ath/ath10k/htt_rx.c

Change-Id: If2ede1dea6a07b3fd498724e83071fd547170e1c
[spathi@codeaurora.org: resolved compilation errors in ath10k
by rebuilding crypto header in rx data frames]
Signed-off-by: Srinivasarao P <spathi@codeaurora.org>
2018-05-22 15:23:13 +05:30
Darrick J. Wong
4e2aa6460f xfs: prevent creating negative-sized file via INSERT_RANGE
commit 7d83fb14258b9961920cd86f0b921caaeb3ebe85 upstream.

During the "insert range" fallocate operation, i_size grows by the
specified 'len' bytes.  XFS verifies that i_size + len < s_maxbytes, as
it should.  But this comparison is done using the signed 'loff_t', and
'i_size + len' can wrap around to a negative value, causing the check to
incorrectly pass, resulting in an inode with "negative" i_size.  This is
possible on 64-bit platforms, where XFS sets s_maxbytes = LLONG_MAX.
ext4 and f2fs don't run into this because they set a smaller s_maxbytes.

Fix it by using subtraction instead.

Reproducer:
    xfs_io -f file -c "truncate $(((1<<63)-1))" -c "finsert 0 4096"

Fixes: a904b1ca57 ("xfs: Add support FALLOC_FL_INSERT_RANGE for fallocate")
Cc: <stable@vger.kernel.org> # v4.1+
Originally-From: Eric Biggers <ebiggers@google.com>
Signed-off-by: Eric Biggers <ebiggers@google.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
[darrick: fix signed integer addition overflow too]
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-05-16 10:06:48 +02:00
Srinivasarao P
22397c476f Merge android-4.4.120 (d63fdf6) into msm-4.4
* refs/heads/tmp-d63fdf6
  Linux 4.4.120
  MIPS: Implement __multi3 for GCC7 MIPS64r6 builds
  net: gianfar_ptp: move set_fipers() to spinlock protecting area
  sctp: make use of pre-calculated len
  xen/gntdev: Fix partial gntdev_mmap() cleanup
  xen/gntdev: Fix off-by-one error when unmapping with holes
  SolutionEngine771x: fix Ether platform data
  mdio-sun4i: Fix a memory leak
  xen-netfront: enable device after manual module load
  bnxt_en: Fix the 'Invalid VF' id check in bnxt_vf_ndo_prep routine.
  can: flex_can: Correct the checking for frame length in flexcan_start_xmit()
  mac80211: mesh: drop frames appearing to be from us
  drm/ttm: check the return value of kzalloc
  e1000: fix disabling already-disabled warning
  xfs: quota: check result of register_shrinker()
  xfs: quota: fix missed destroy of qi_tree_lock
  IB/ipoib: Fix race condition in neigh creation
  IB/mlx4: Fix mlx4_ib_alloc_mr error flow
  s390/dasd: fix wrongly assigned configuration data
  led: core: Fix brightness setting when setting delay_off=0
  bnx2x: Improve reliability in case of nested PCI errors
  tg3: Enable PHY reset in MTU change path for 5720
  tg3: Add workaround to restrict 5762 MRRS to 2048
  lib/mpi: Fix umul_ppmm() for MIPS64r6
  ARM: dts: ls1021a: fix incorrect clock references
  scsi: storvsc: Fix scsi_cmd error assignments in storvsc_handle_error
  net: arc_emac: fix arc_emac_rx() error paths
  spi: atmel: fixed spin_lock usage inside atmel_spi_remove
  drm/nouveau/pci: do a msi rearm on init
  sget(): handle failures of register_shrinker()
  ARM: 8731/1: Fix csum_partial_copy_from_user() stack mismatch
  ipv6: icmp6: Allow icmp messages to be looped back
  mtd: nand: gpmi: Fix failure when a erased page has a bitflip at BBM
  f2fs: fix a bug caused by NULL extent tree
  hrtimer: Ensure POSIX compliance (relative CLOCK_REALTIME hrtimers)
  ANDROID: keychord: Check for write data size
  Revert "binder: add missing binder_unlock()"
  Linux 4.4.119
  binder: add missing binder_unlock()
  drm/amdgpu: Avoid leaking PM domain on driver unbind (v2)
  usb: renesas_usbhs: missed the "running" flag in usb_dmac with rx path
  usb: gadget: f_fs: Process all descriptors during bind
  usb: ldusb: add PIDs for new CASSY devices supported by this driver
  usb: dwc3: gadget: Set maxpacket size for ep0 IN
  drm/edid: Add 6 bpc quirk for CPT panel in Asus UX303LA
  Add delay-init quirk for Corsair K70 RGB keyboards
  arm64: Disable unhandled signal log messages by default
  usb: ohci: Proper handling of ed_rm_list to handle race condition between usb_kill_urb() and finish_unlinks()
  irqchip/gic-v3: Use wmb() instead of smb_wmb() in gic_raise_softirq()
  x86/oprofile: Fix bogus GCC-8 warning in nmi_setup()
  iio: adis_lib: Initialize trigger before requesting interrupt
  iio: buffer: check if a buffer has been set up when poll is called
  cfg80211: fix cfg80211_beacon_dup
  scsi: ibmvfc: fix misdefined reserved field in ibmvfc_fcp_rsp_info
  ip_tunnel: fix preempt warning in ip tunnel creation/updating
  ip_tunnel: replace dst_cache with generic implementation
  PCI: keystone: Fix interrupt-controller-node lookup
  powerpc/64s: Fix RFI flush dependency on HARDLOCKUP_DETECTOR
  netfilter: drop outermost socket lock in getsockopt()
  ANDROID: sdcardfs: Set num in extension_details during make_item

Conflicts:
	drivers/usb/gadget/function/f_fs.c

Change-Id: I594b9686fd64d4b62ebef4452d4f1ccca4f5a77b
Signed-off-by: Srinivasarao P <spathi@codeaurora.org>
2018-03-08 17:53:30 +05:30
Aliaksei Karaliou
6bfb63b4e7 xfs: quota: check result of register_shrinker()
[ Upstream commit 3a3882ff26fbdbaf5f7e13f6a0bccfbf7121041d ]

xfs_qm_init_quotainfo() does not check result of register_shrinker()
which was tagged as __must_check recently, reported by sparse.

Signed-off-by: Aliaksei Karaliou <akaraliou.dev@gmail.com>
[darrick: move xfs_qm_destroy_quotainos nearer xfs_qm_init_quotainos]
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>

Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-03-03 10:19:44 +01:00
Aliaksei Karaliou
a72e357381 xfs: quota: fix missed destroy of qi_tree_lock
[ Upstream commit 2196881566225f3c3428d1a5f847a992944daa5b ]

xfs_qm_destroy_quotainfo() does not destroy quotainfo->qi_tree_lock
while destroys quotainfo->qi_quotaofflock.

Signed-off-by: Aliaksei Karaliou <akaraliou.dev@gmail.com>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-03-03 10:19:44 +01:00
Srinivasarao P
2fd547e8d1 Merge android-4.4.115 (aa856bd) into msm-4.4
* refs/heads/tmp-aa856bd
  Linux 4.4.115
  spi: imx: do not access registers while clocks disabled
  serial: imx: Only wakeup via RTSDEN bit if the system has RTS/CTS
  selinux: general protection fault in sock_has_perm
  usb: uas: unconditionally bring back host after reset
  usb: f_fs: Prevent gadget unbind if it is already unbound
  USB: serial: simple: add Motorola Tetra driver
  usbip: list: don't list devices attached to vhci_hcd
  usbip: prevent bind loops on devices attached to vhci_hcd
  USB: serial: io_edgeport: fix possible sleep-in-atomic
  CDC-ACM: apply quirk for card reader
  USB: cdc-acm: Do not log urb submission errors on disconnect
  USB: serial: pl2303: new device id for Chilitag
  usb: option: Add support for FS040U modem
  staging: rtl8188eu: Fix incorrect response to SIOCGIWESSID
  usb: gadget: don't dereference g until after it has been null checked
  media: usbtv: add a new usbid
  scsi: ufs: ufshcd: fix potential NULL pointer dereference in ufshcd_config_vreg
  scsi: aacraid: Prevent crash in case of free interrupt during scsi EH path
  xfs: ubsan fixes
  drm/omap: Fix error handling path in 'omap_dmm_probe()'
  kmemleak: add scheduling point to kmemleak_scan()
  SUNRPC: Allow connect to return EHOSTUNREACH
  quota: Check for register_shrinker() failure.
  net: ethernet: xilinx: Mark XILINX_LL_TEMAC broken on 64-bit
  hwmon: (pmbus) Use 64bit math for DIRECT format values
  lockd: fix "list_add double add" caused by legacy signal interface
  nfsd: check for use of the closed special stateid
  grace: replace BUG_ON by WARN_ONCE in exit_net hook
  nfsd: Ensure we check stateid validity in the seqid operation checks
  nfsd: CLOSE SHOULD return the invalid special stateid for NFSv4.x (x>0)
  xen-netfront: remove warning when unloading module
  KVM: VMX: Fix rflags cache during vCPU reset
  btrfs: fix deadlock when writing out space cache
  mac80211: fix the update of path metric for RANN frame
  openvswitch: fix the incorrect flow action alloc size
  drm/amdkfd: Fix SDMA oversubsription handling
  drm/amdkfd: Fix SDMA ring buffer size calculation
  drm/amdgpu: Fix SDMA load/unload sequence on HWS disabled mode
  bcache: check return value of register_shrinker
  cpufreq: Add Loongson machine dependencies
  ACPI / bus: Leave modalias empty for devices which are not present
  KVM: x86: ioapic: Preserve read-only values in the redirection table
  KVM: x86: ioapic: Clear Remote IRR when entry is switched to edge-triggered
  KVM: x86: ioapic: Fix level-triggered EOI and IOAPIC reconfigure race
  KVM: X86: Fix operand/address-size during instruction decoding
  KVM: x86: Don't re-execute instruction when not passing CR2 value
  KVM: x86: emulator: Return to user-mode on L1 CPL=0 emulation failure
  igb: Free IRQs when device is hotplugged
  mtd: nand: denali_pci: add missing MODULE_DESCRIPTION/AUTHOR/LICENSE
  gpio: ath79: add missing MODULE_DESCRIPTION/LICENSE
  gpio: iop: add missing MODULE_DESCRIPTION/AUTHOR/LICENSE
  power: reset: zx-reboot: add missing MODULE_DESCRIPTION/AUTHOR/LICENSE
  crypto: af_alg - whitelist mask and type
  crypto: aesni - handle zero length dst buffer
  ALSA: seq: Make ioctls race-free
  kaiser: fix intel_bts perf crashes
  x86/pti: Make unpoison of pgd for trusted boot work for real
  bpf: reject stores into ctx via st and xadd
  bpf: fix 32-bit divide by zero
  bpf: fix divides by zero
  bpf: avoid false sharing of map refcount with max_entries
  bpf: arsh is not supported in 32 bit alu thus reject it
  bpf: introduce BPF_JIT_ALWAYS_ON config
  bpf: fix bpf_tail_call() x64 JIT
  x86: bpf_jit: small optimization in emit_bpf_tail_call()
  bpf: fix branch pruning logic
  loop: fix concurrent lo_open/lo_release
  ANDROID: sdcardfs: Protect set_top
  ANDROID: fsnotify: Notify lower fs of open
  Revert "ANDROID: sdcardfs: notify lower file of opens"
  ANDROID: sdcardfs: Use lower getattr times/size
  ANDROID: sched/rt: schedtune: Add boost retention to RT

Conflicts:
	arch/x86/Kconfig
	kernel/sched/rt.c

Change-Id: I91b08e1b8e0a1c6ca9c245597acad0bf197f9527
Signed-off-by: Srinivasarao P <spathi@codeaurora.org>
2018-02-05 11:59:38 +05:30
Darrick J. Wong
dfd0feb42f xfs: ubsan fixes
[ Upstream commit 22a6c83777ac7c17d6c63891beeeac24cf5da450 ]

Fix some complaints from the UBSAN about signed integer addition overflows.

Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Brian Foster <bfoster@redhat.com>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-02-03 17:04:29 +01:00
Srinivasarao P
2d309c994d Merge android-4.4.107 (79f138a) into msm-4.4
* refs/heads/tmp-79f138a
  Linux 4.4.107
  ath9k: fix tx99 potential info leak
  IB/ipoib: Grab rtnl lock on heavy flush when calling ndo_open/stop
  RDMA/cma: Avoid triggering undefined behavior
  macvlan: Only deliver one copy of the frame to the macvlan interface
  udf: Avoid overflow when session starts at large offset
  scsi: bfa: integer overflow in debugfs
  scsi: sd: change allow_restart to bool in sysfs interface
  scsi: sd: change manage_start_stop to bool in sysfs interface
  vt6655: Fix a possible sleep-in-atomic bug in vt6655_suspend
  scsi: scsi_devinfo: Add REPORTLUN2 to EMC SYMMETRIX blacklist entry
  raid5: Set R5_Expanded on parity devices as well as data.
  pinctrl: adi2: Fix Kconfig build problem
  usb: musb: da8xx: fix babble condition handling
  tty fix oops when rmmod 8250
  powerpc/perf/hv-24x7: Fix incorrect comparison in memord
  scsi: hpsa: destroy sas transport properties before scsi_host
  scsi: hpsa: cleanup sas_phy structures in sysfs when unloading
  PCI: Detach driver before procfs & sysfs teardown on device remove
  xfs: fix incorrect extent state in xfs_bmap_add_extent_unwritten_real
  xfs: fix log block underflow during recovery cycle verification
  l2tp: cleanup l2tp_tunnel_delete calls
  bcache: fix wrong cache_misses statistics
  bcache: explicitly destroy mutex while exiting
  GFS2: Take inode off order_write list when setting jdata flag
  thermal/drivers/step_wise: Fix temperature regulation misbehavior
  ppp: Destroy the mutex when cleanup
  clk: tegra: Fix cclk_lp divisor register
  clk: imx6: refine hdmi_isfr's parent to make HDMI work on i.MX6 SoCs w/o VPU
  clk: mediatek: add the option for determining PLL source clock
  mm: Handle 0 flags in _calc_vm_trans() macro
  crypto: tcrypt - fix buffer lengths in test_aead_speed()
  arm-ccn: perf: Prevent module unload while PMU is in use
  target/file: Do not return error for UNMAP if length is zero
  target:fix condition return in core_pr_dump_initiator_port()
  iscsi-target: fix memory leak in lio_target_tiqn_addtpg()
  target/iscsi: Fix a race condition in iscsit_add_reject_from_cmd()
  powerpc/ipic: Fix status get and status clear
  powerpc/opal: Fix EBUSY bug in acquiring tokens
  netfilter: ipvs: Fix inappropriate output of procfs
  powerpc/powernv/cpufreq: Fix the frequency read by /proc/cpuinfo
  PCI/PME: Handle invalid data when reading Root Status
  dmaengine: ti-dma-crossbar: Correct am335x/am43xx mux value type
  rtc: pcf8563: fix output clock rate
  video: fbdev: au1200fb: Return an error code if a memory allocation fails
  video: fbdev: au1200fb: Release some resources if a memory allocation fails
  video: udlfb: Fix read EDID timeout
  fbdev: controlfb: Add missing modes to fix out of bounds access
  sfc: don't warn on successful change of MAC
  target: fix race during implicit transition work flushes
  target: fix ALUA transition timeout handling
  target: Use system workqueue for ALUA transitions
  btrfs: add missing memset while reading compressed inline extents
  NFSv4.1 respect server's max size in CREATE_SESSION
  efi/esrt: Cleanup bad memory map log messages
  perf symbols: Fix symbols__fixup_end heuristic for corner cases
  net/mlx4_core: Avoid delays during VF driver device shutdown
  afs: Fix afs_kill_pages()
  afs: Fix page leak in afs_write_begin()
  afs: Populate and use client modification time
  afs: Fix the maths in afs_fs_store_data()
  afs: Prevent callback expiry timer overflow
  afs: Migrate vlocation fields to 64-bit
  afs: Flush outstanding writes when an fd is closed
  afs: Adjust mode bits processing
  afs: Populate group ID from vnode status
  afs: Fix missing put_page()
  drm/radeon: reinstate oland workaround for sclk
  mmc: mediatek: Fixed bug where clock frequency could be set wrong
  sched/deadline: Use deadline instead of period when calculating overflow
  sched/deadline: Throttle a constrained deadline task activated after the deadline
  sched/deadline: Make sure the replenishment timer fires in the next period
  drm/radeon/si: add dpm quirk for Oland
  fjes: Fix wrong netdevice feature flags
  scsi: hpsa: limit outstanding rescans
  scsi: hpsa: update check for logical volume status
  openrisc: fix issue handling 8 byte get_user calls
  intel_th: pci: Add Gemini Lake support
  mlxsw: reg: Fix SPVMLR max record count
  mlxsw: reg: Fix SPVM max record count
  net: Resend IGMP memberships upon peer notification.
  dmaengine: Fix array index out of bounds warning in __get_unmap_pool()
  net: wimax/i2400m: fix NULL-deref at probe
  writeback: fix memory leak in wb_queue_work()
  netfilter: bridge: honor frag_max_size when refragmenting
  drm/omap: fix dmabuf mmap for dma_alloc'ed buffers
  Input: i8042 - add TUXEDO BU1406 (N24_25BU) to the nomux list
  NFSD: fix nfsd_reset_versions for NFSv4.
  NFSD: fix nfsd_minorversion(.., NFSD_AVAIL)
  net: bcmgenet: Power up the internal PHY before probing the MII
  net: bcmgenet: power down internal phy if open or resume fails
  net: bcmgenet: reserved phy revisions must be checked first
  net: bcmgenet: correct MIB access of UniMAC RUNT counters
  net: bcmgenet: correct the RBUF_OVFL_CNT and RBUF_ERR_CNT MIB values
  net: initialize msg.msg_flags in recvfrom
  userfaultfd: selftest: vm: allow to build in vm/ directory
  userfaultfd: shmem: __do_fault requires VM_FAULT_NOPAGE
  md-cluster: free md_cluster_info if node leave cluster
  usb: phy: isp1301: Add OF device ID table
  mac80211: Fix addition of mesh configuration element
  KEYS: add missing permission check for request_key() destination
  ext4: fix crash when a directory's i_size is too small
  ext4: fix fdatasync(2) after fallocate(2) operation
  dmaengine: dmatest: move callback wait queue to thread context
  sched/rt: Do not pull from current CPU if only one CPU to pull
  xhci: Don't add a virt_dev to the devs array before it's fully allocated
  Bluetooth: btusb: driver to enable the usb-wakeup feature
  ceph: drop negative child dentries before try pruning inode's alias
  usbip: fix stub_send_ret_submit() vulnerability to null transfer_buffer
  USB: core: prevent malicious bNumInterfaces overflow
  USB: uas and storage: Add US_FL_BROKEN_FUA for another JMicron JMS567 ID
  tracing: Allocate mask_str buffer dynamically
  autofs: fix careless error in recent commit
  crypto: salsa20 - fix blkcipher_walk API usage
  crypto: hmac - require that the underlying hash algorithm is unkeyed
  UPSTREAM: arm64: setup: introduce kaslr_offset()
  UPSTREAM: kcov: fix comparison callback signature
  UPSTREAM: kcov: support comparison operands collection
  UPSTREAM: kcov: remove pointless current != NULL check
  UPSTREAM: kcov: support compat processes
  UPSTREAM: kcov: simplify interrupt check
  UPSTREAM: kcov: make kcov work properly with KASLR enabled
  UPSTREAM: kcov: add more missing includes
  UPSTREAM: kcov: add missing #include <linux/sched.h>
  UPSTREAM: kcov: properly check if we are in an interrupt
  UPSTREAM: kcov: don't profile branches in kcov
  UPSTREAM: kcov: don't trace the code coverage code
  BACKPORT: kernel: add kcov code coverage

Conflicts:
	Makefile
	mm/kasan/Makefile
	scripts/Makefile.lib

Change-Id: Ic19953706ea2e700621b0ba94d1c90bbffa4f471
Signed-off-by: Srinivasarao P <spathi@codeaurora.org>
2018-01-18 12:49:58 +05:30
Christoph Hellwig
02922f3bb3 xfs: fix incorrect extent state in xfs_bmap_add_extent_unwritten_real
[ Upstream commit 5e422f5e4fd71d18bc6b851eeb3864477b3d842e ]

There was one spot in xfs_bmap_add_extent_unwritten_real that didn't use the
passed in new extent state but always converted to normal, leading to wrong
behavior when converting from normal to unwritten.

Only found by code inspection, it seems like this code path to move partial
extent from written to unwritten while merging it with the next extent is
rarely exercised.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Brian Foster <bfoster@redhat.com>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-12-20 10:05:00 +01:00
Brian Foster
f267a1390b xfs: fix log block underflow during recovery cycle verification
[ Upstream commit 9f2a4505800607e537e9dd9dea4f55c4b0c30c7a ]

It is possible for mkfs to format very small filesystems with too
small of an internal log with respect to the various minimum size
and block count requirements. If this occurs when the log happens to
be smaller than the scan window used for cycle verification and the
scan wraps the end of the log, the start_blk calculation in
xlog_find_head() underflows and leads to an attempt to scan an
invalid range of log blocks. This results in log recovery failure
and a failed mount.

Since there may be filesystems out in the wild with this kind of
geometry, we cannot simply refuse to mount. Instead, cap the scan
window for cycle verification to the size of the physical log. This
ensures that the cycle verification proceeds as expected when the
scan wraps the end of the log.

Reported-by: Zorro Lang <zlang@redhat.com>
Signed-off-by: Brian Foster <bfoster@redhat.com>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-12-20 10:04:59 +01:00
Blagovest Kolenichev
b2465235ad Merge android-4.4@73a2b70 (v4.4.92) into msm-4.4
* refs/heads/tmp-73a2b70
  Linux 4.4.92
  ext4: don't allow encrypted operations without keys
  ext4: Don't clear SGID when inheriting ACLs
  ext4: fix data corruption for mmap writes
  sched/cpuset/pm: Fix cpuset vs. suspend-resume bugs
  nvme: protect against simultaneous shutdown invocations
  drm/i915/bios: ignore HDMI on port A
  brcmfmac: setup passive scan if requested by user-space
  uwb: ensure that endpoint is interrupt
  uwb: properly check kthread_run return value
  iio: adc: mcp320x: Fix oops on module unload
  iio: adc: mcp320x: Fix readout of negative voltages
  iio: ad7793: Fix the serial interface reset
  iio: core: Return error for failed read_reg
  staging: iio: ad7192: Fix - use the dedicated reset function avoiding dma from stack.
  iio: ad_sigma_delta: Implement a dedicated reset function
  iio: adc: twl4030: Disable the vusb3v1 rugulator in the error handling path of 'twl4030_madc_probe()'
  iio: adc: twl4030: Fix an error handling path in 'twl4030_madc_probe()'
  xhci: fix finding correct bus_state structure for USB 3.1 hosts
  USB: fix out-of-bounds in usb_set_configuration
  usb: Increase quirk delay for USB devices
  USB: core: harden cdc_parse_cdc_header
  USB: uas: fix bug in handling of alternate settings
  scsi: sd: Do not override max_sectors_kb sysfs setting
  iwlwifi: add workaround to disable wide channels in 5GHz
  HID: i2c-hid: allocate hid buffers for real worst case
  ftrace: Fix kmemleak in unregister_ftrace_graph
  stm class: Fix a use-after-free
  Drivers: hv: fcopy: restore correct transfer length
  driver core: platform: Don't read past the end of "driver_override" buffer
  ALSA: usx2y: Suppress kernel warning at page allocation failures
  ALSA: compress: Remove unused variable
  lsm: fix smack_inode_removexattr and xattr_getsecurity memleak
  USB: g_mass_storage: Fix deadlock when driver is unbound
  usb: gadget: mass_storage: set msg_registered after msg registered
  USB: devio: Don't corrupt user memory
  USB: dummy-hcd: Fix erroneous synchronization change
  USB: dummy-hcd: fix infinite-loop resubmission bug
  USB: dummy-hcd: fix connection failures (wrong speed)
  usb: pci-quirks.c: Corrected timeout values used in handshake
  ALSA: usb-audio: Check out-of-bounds access by corrupted buffer descriptor
  usb: renesas_usbhs: fix usbhsf_fifo_clear() for RX direction
  usb: renesas_usbhs: fix the BCLR setting condition for non-DCP pipe
  usb-storage: unusual_devs entry to fix write-access regression for Seagate external drives
  usb: gadget: udc: atmel: set vbus irqflags explicitly
  USB: gadgetfs: fix copy_to_user while holding spinlock
  USB: gadgetfs: Fix crash caused by inadequate synchronization
  usb: gadget: inode.c: fix unbalanced spin_lock in ep0_write
  ANDROID: binder: init desired_prio.sched_policy before use it
  BACKPORT: net: xfrm: support setting an output mark.
  UPSTREAM: xfrm: Only add l3mdev oif to dst lookups
  UPSTREAM: net: l3mdev: Add master device lookup by index
  Linux 4.4.91
  ttpci: address stringop overflow warning
  ALSA: au88x0: avoid theoretical uninitialized access
  ARM: remove duplicate 'const' annotations'
  IB/qib: fix false-postive maybe-uninitialized warning
  drivers: firmware: psci: drop duplicate const from psci_of_match
  libata: transport: Remove circular dependency at free time
  xfs: remove kmem_zalloc_greedy
  i2c: meson: fix wrong variable usage in meson_i2c_put_data
  md/raid10: submit bio directly to replacement disk
  rds: ib: add error handle
  iommu/io-pgtable-arm: Check for leaf entry before dereferencing it
  parisc: perf: Fix potential NULL pointer dereference
  netfilter: nfnl_cthelper: fix incorrect helper->expect_class_max
  exynos-gsc: Do not swap cb/cr for semi planar formats
  MIPS: IRQ Stack: Unwind IRQ stack onto task stack
  netfilter: invoke synchronize_rcu after set the _hook_ to NULL
  bridge: netlink: register netdevice before executing changelink
  mmc: sdio: fix alignment issue in struct sdio_func
  usb: plusb: Add support for PL-27A1
  team: fix memory leaks
  net/packet: check length in getsockopt() called with PACKET_HDRLEN
  net: core: Prevent from dereferencing null pointer when releasing SKB
  MIPS: Lantiq: Fix another request_mem_region() return code check
  ASoC: dapm: fix some pointer error handling
  usb: chipidea: vbus event may exist before starting gadget
  audit: log 32-bit socketcalls
  ASoC: dapm: handle probe deferrals
  partitions/efi: Fix integer overflow in GPT size calculation
  USB: serial: mos7840: fix control-message error handling
  USB: serial: mos7720: fix control-message error handling
  drm/amdkfd: fix improper return value on error
  IB/ipoib: Replace list_del of the neigh->list with list_del_init
  IB/ipoib: rtnl_unlock can not come after free_netdev
  IB/ipoib: Fix deadlock over vlan_mutex
  tty: goldfish: Fix a parameter of a call to free_irq
  ARM: 8635/1: nommu: allow enabling REMAP_VECTORS_TO_RAM
  iio: adc: hx711: Add DT binding for avia,hx711
  iio: adc: axp288: Drop bogus AXP288_ADC_TS_PIN_CTRL register modifications
  hwmon: (gl520sm) Fix overflows and crash seen when writing into limit attributes
  sh_eth: use correct name for ECMR_MPDE bit
  extcon: axp288: Use vbus-valid instead of -present to determine cable presence
  igb: re-assign hw address pointer on reset after PCI error
  MIPS: ralink: Fix incorrect assignment on ralink_soc
  MIPS: Ensure bss section ends on a long-aligned address
  ARM: dts: r8a7790: Use R-Car Gen 2 fallback binding for msiof nodes
  RDS: RDMA: Fix the composite message user notification
  GFS2: Fix reference to ERR_PTR in gfs2_glock_iter_next
  drm: bridge: add DT bindings for TI ths8135
  drm_fourcc: Fix DRM_FORMAT_MOD_LINEAR #define
  FROMLIST: tracing: Add support for preempt and irq enable/disable events
  FROMLIST: tracing: Prepare to add preempt and irq trace events
  ANDROID: binder: fix transaction leak.
  ANDROID: binder: Add tracing for binder priority inheritance.
  Linux 4.4.90
  fix xen_swiotlb_dma_mmap prototype
  swiotlb-xen: implement xen_swiotlb_dma_mmap callback
  video: fbdev: aty: do not leak uninitialized padding in clk to userspace
  KVM: VMX: use cmpxchg64
  ARM: pxa: fix the number of DMA requestor lines
  ARM: pxa: add the number of DMA requestor lines
  dmaengine: mmp-pdma: add number of requestors
  cxl: Fix driver use count
  KVM: VMX: remove WARN_ON_ONCE in kvm_vcpu_trigger_posted_interrupt
  KVM: VMX: do not change SN bit in vmx_update_pi_irte()
  timer/sysclt: Restrict timer migration sysctl values to 0 and 1
  gfs2: Fix debugfs glocks dump
  x86/fpu: Don't let userspace set bogus xcomp_bv
  btrfs: prevent to set invalid default subvolid
  btrfs: propagate error to btrfs_cmp_data_prepare caller
  btrfs: fix NULL pointer dereference from free_reloc_roots()
  PCI: Fix race condition with driver_override
  kvm: nVMX: Don't allow L2 to access the hardware CR8
  KVM: VMX: Do not BUG() on out-of-bounds guest IRQ
  arm64: fault: Route pte translation faults via do_translation_fault
  arm64: Make sure SPsel is always set
  seccomp: fix the usage of get/put_seccomp_filter() in seccomp_get_filter()
  bsg-lib: don't free job in bsg_prepare_job
  nl80211: check for the required netlink attributes presence
  vfs: Return -ENXIO for negative SEEK_HOLE / SEEK_DATA offsets
  SMB3: Don't ignore O_SYNC/O_DSYNC and O_DIRECT flags
  SMB: Validate negotiate (to protect against downgrade) even if signing off
  Fix SMB3.1.1 guest authentication to Samba
  powerpc/pseries: Fix parent_dn reference leak in add_dt_node()
  KEYS: prevent KEYCTL_READ on negative key
  KEYS: prevent creating a different user's keyrings
  KEYS: fix writing past end of user-supplied buffer in keyring_read()
  crypto: talitos - fix sha224
  crypto: talitos - Don't provide setkey for non hmac hashing algs.
  scsi: scsi_transport_iscsi: fix the issue that iscsi_if_rx doesn't parse nlmsg properly
  md/raid5: preserve STRIPE_ON_UNPLUG_LIST in break_stripe_batch_list
  md/raid5: fix a race condition in stripe batch
  tracing: Erase irqsoff trace with empty write
  tracing: Fix trace_pipe behavior for instance traces
  KVM: PPC: Book3S: Fix race and leak in kvm_vm_ioctl_create_spapr_tce()
  mac80211: flush hw_roc_start work before cancelling the ROC
  cifs: release auth_key.response for reconnect.
  f2fs: catch up to v4.14-rc1
  UPSTREAM: cpufreq: schedutil: use now as reference when aggregating shared policy requests
  ANDROID: add script to fetch android kernel config fragments
  f2fs: reorganize stat information
  f2fs: clean up flush/discard command namings
  f2fs: check in-memory sit version bitmap
  f2fs: check in-memory nat version bitmap
  f2fs: check in-memory block bitmap
  f2fs: introduce FI_ATOMIC_COMMIT
  f2fs: clean up with list_{first, last}_entry
  f2fs: return fs_trim if there is no candidate
  f2fs: avoid needless checkpoint in f2fs_trim_fs
  f2fs: relax async discard commands more
  f2fs: drop exist_data for inline_data when truncated to 0
  f2fs: don't allow encrypted operations without keys
  f2fs: show the max number of atomic operations
  f2fs: get io size bit from mount option
  f2fs: support IO alignment for DATA and NODE writes
  f2fs: add submit_bio tracepoint
  f2fs: reassign new segment for mode=lfs
  f2fs: fix a missing discard prefree segments
  f2fs: use rb_entry_safe
  f2fs: add a case of no need to read a page in write begin
  f2fs: fix a problem of using memory after free
  f2fs: remove unneeded condition
  f2fs: don't cache nat entry if out of memory
  f2fs: remove unused values in recover_fsync_data
  f2fs: support async discard based on v4.9
  f2fs: resolve op and op_flags confilcts
  f2fs: remove wrong backported codes
  FROMLIST: binder: fix use-after-free in binder_transaction()
  UPSTREAM: ipv6: fib: Unlink replaced routes from their nodes

Signed-off-by: Blagovest Kolenichev <bkolenichev@codeaurora.org>

Conflicts:
	fs/f2fs/crypto_key.c
	fs/f2fs/f2fs_crypto.h
	net/wireless/nl80211.c
	sound/usb/card.c

Change-Id: I742aeaec84c7892165976b7bea3e07bdd6881d93
Signed-off-by: Blagovest Kolenichev <bkolenichev@codeaurora.org>
2017-10-20 02:11:57 -07:00
Darrick J. Wong
0185496a11 xfs: remove kmem_zalloc_greedy
[ Upstream commit 08b005f1333154ae5b404ca28766e0ffb9f1c150 ]

The sole remaining caller of kmem_zalloc_greedy is bulkstat, which uses
it to grab 1-4 pages for staging of inobt records.  The infinite loop in
the greedy allocation function is causing hangs[1] in generic/269, so
just get rid of the greedy allocator in favor of kmem_zalloc_large.
This makes bulkstat somewhat more likely to ENOMEM if there's really no
pages to spare, but eliminates a source of hangs.

[1] http://lkml.kernel.org/r/20170301044634.rgidgdqqiiwsmfpj%40XZHOUW.usersys.redhat.com

Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-10-08 10:14:20 +02:00
Blagovest Kolenichev
3e99b7f6eb Merge android-4.4@29d0b65 (v4.4.88) into msm-4.4
* refs/heads/tmp-29d0b65
  Linux 4.4.88
  xfs: XFS_IS_REALTIME_INODE() should be false if no rt device present
  NFS: Fix 2 use after free issues in the I/O code
  ARM: 8692/1: mm: abort uaccess retries upon fatal signal
  Bluetooth: Properly check L2CAP config option output buffer length
  ALSA: msnd: Optimize / harden DSP and MIDI loops
  locktorture: Fix potential memory leak with rw lock test
  btrfs: resume qgroup rescan on rw remount
  drm/bridge: adv7511: Re-write the i2c address before EDID probing
  drm/bridge: adv7511: Switch to using drm_kms_helper_hotplug_event()
  drm/bridge: adv7511: Use work_struct to defer hotplug handing to out of irq context
  drm/bridge: adv7511: Fix mutex deadlock when interrupts are disabled
  drm: adv7511: really enable interrupts for EDID detection
  scsi: sg: recheck MMAP_IO request length with lock held
  scsi: sg: protect against races between mmap() and SG_SET_RESERVED_SIZE
  cs5536: add support for IDE controller variant
  workqueue: Fix flag collision
  drm/nouveau/pci/msi: disable MSI on big-endian platforms by default
  mwifiex: correct channel stat buffer overflows
  dlm: avoid double-free on error path in dlm_device_{register,unregister}
  Bluetooth: Add support of 13d3:3494 RTL8723BE device
  rtlwifi: rtl_pci_probe: Fix fail path of _rtl_pci_find_adapter
  Input: trackpoint - assume 3 buttons when buttons detection fails
  ath10k: fix memory leak in rx ring buffer allocation
  intel_th: pci: Add Cannon Lake PCH-LP support
  intel_th: pci: Add Cannon Lake PCH-H support
  driver core: bus: Fix a potential double free
  staging/rts5208: fix incorrect shift to extract upper nybble
  USB: core: Avoid race of async_completed() w/ usbdev_release()
  usb:xhci:Fix regression when ATI chipsets detected
  usb: Add device quirk for Logitech HD Pro Webcam C920-C
  USB: serial: option: add support for D-Link DWM-157 C1
  usb: quirks: add delay init quirk for Corsair Strafe RGB keyboard
  ANDROID: sdcardfs: Add missing break
  ANDROID: Sdcardfs: Move gid derivation under flag
  ANDROID: mnt: Fix freeing of mount data
  drivers: cpufreq: checks to avoid kernel crash in cpufreq_interactive
  ANDROID: Use sk_uid to replace uid get from socket file
  ANDROID: nf: xt_qtaguid: fix handling for cases where tunnels are used.
  Revert "ANDROID: Use sk_uid to replace uid get from socket file"
  ANDROID: fiq_debugger: Fix minor bug in code

Conflicts:
	drivers/cpufreq/cpufreq_interactive.c
	drivers/net/wireless/ath/ath10k/core.c
	drivers/staging/android/fiq_debugger/fiq_debugger.c
	net/netfilter/xt_qtaguid.c

Change-Id: I49c67ff84d4bee0799691cc1ee0a023e2dd13e66
Signed-off-by: Blagovest Kolenichev <bkolenichev@codeaurora.org>
2017-09-21 14:00:18 -07:00
Richard Wareing
ad39034341 xfs: XFS_IS_REALTIME_INODE() should be false if no rt device present
commit b31ff3cdf540110da4572e3e29bd172087af65cc upstream.

If using a kernel with CONFIG_XFS_RT=y and we set the RHINHERIT flag on
a directory in a filesystem that does not have a realtime device and
create a new file in that directory, it gets marked as a real time file.
When data is written and a fsync is issued, the filesystem attempts to
flush a non-existent rt device during the fsync process.

This results in a crash dereferencing a null buftarg pointer in
xfs_blkdev_issue_flush():

  BUG: unable to handle kernel NULL pointer dereference at 0000000000000008
  IP: xfs_blkdev_issue_flush+0xd/0x20
  .....
  Call Trace:
    xfs_file_fsync+0x188/0x1c0
    vfs_fsync_range+0x3b/0xa0
    do_fsync+0x3d/0x70
    SyS_fsync+0x10/0x20
    do_syscall_64+0x4d/0xb0
    entry_SYSCALL64_slow_path+0x25/0x25

Setting RT inode flags does not require special privileges so any
unprivileged user can cause this oops to occur.  To reproduce, confirm
kernel is compiled with CONFIG_XFS_RT=y and run:

  # mkfs.xfs -f /dev/pmem0
  # mount /dev/pmem0 /mnt/test
  # mkdir /mnt/test/foo
  # xfs_io -c 'chattr +t' /mnt/test/foo
  # xfs_io -f -c 'pwrite 0 5m' -c fsync /mnt/test/foo/bar

Or just run xfstests with MKFS_OPTIONS="-d rtinherit=1" and wait.

Kernels built with CONFIG_XFS_RT=n are not exposed to this bug.

Fixes: f538d4da8d ("[XFS] write barrier support")
Signed-off-by: Richard Wareing <rwareing@fb.com>
Signed-off-by: Dave Chinner <david@fromorbit.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-09-13 14:09:46 -07:00
Blagovest Kolenichev
899e6b9605 Merge android-4.4@9f764bb (v4.4.80) into msm-4.4
* refs/heads/tmp-9f764bb
  Linux 4.4.80
  ASoC: dpcm: Avoid putting stream state to STOP when FE stream is paused
  scsi: snic: Return error code on memory allocation failure
  scsi: fnic: Avoid sending reset to firmware when another reset is in progress
  HID: ignore Petzl USB headlamp
  ALSA: usb-audio: test EP_FLAG_RUNNING at urb completion
  sh_eth: enable RX descriptor word 0 shift on SH7734
  nvmem: imx-ocotp: Fix wrong register size
  arm64: mm: fix show_pte KERN_CONT fallout
  vfio-pci: Handle error from pci_iomap
  video: fbdev: cobalt_lcdfb: Handle return NULL error from devm_ioremap
  perf symbols: Robustify reading of build-id from sysfs
  perf tools: Install tools/lib/traceevent plugins with install-bin
  xfrm: Don't use sk_family for socket policy lookups
  tools lib traceevent: Fix prev/next_prio for deadline tasks
  Btrfs: adjust outstanding_extents counter properly when dio write is split
  usb: gadget: Fix copy/pasted error message
  ACPI / scan: Prefer devices without _HID/_CID for _ADR matching
  ARM: s3c2410_defconfig: Fix invalid values for NF_CT_PROTO_*
  ARM64: zynqmp: Fix i2c node's compatible string
  ARM64: zynqmp: Fix W=1 dtc 1.4 warnings
  dmaengine: ti-dma-crossbar: Add some 'of_node_put()' in error path.
  dmaengine: ioatdma: workaround SKX ioatdma version
  dmaengine: ioatdma: Add Skylake PCI Dev ID
  openrisc: Add _text symbol to fix ksym build error
  irqchip/mxs: Enable SKIP_SET_WAKE and MASK_ON_SUSPEND
  ASoC: nau8825: fix invalid configuration in Pre-Scalar of FLL
  spi: dw: Make debugfs name unique between instances
  ASoC: tlv320aic3x: Mark the RESET register as volatile
  irqchip/keystone: Fix "scheduling while atomic" on rt
  vfio-pci: use 32-bit comparisons for register address for gcc-4.5
  drm/msm: Verify that MSM_SUBMIT_BO_FLAGS are set
  drm/msm: Ensure that the hardware write pointer is valid
  net/mlx4: Remove BUG_ON from ICM allocation routine
  ipv6: Should use consistent conditional judgement for ip6 fragment between __ip6_append_data and ip6_finish_output
  ARM: dts: n900: Mark eMMC slot with no-sdio and no-sd flags
  r8169: add support for RTL8168 series add-on card.
  x86/mce/AMD: Make the init code more robust
  tpm: Replace device number bitmap with IDR
  tpm: fix a kernel memory leak in tpm-sysfs.c
  xen/blkback: don't use xen_blkif_get() in xen-blkback kthread
  xen/blkback: don't free be structure too early
  sched/cputime: Fix prev steal time accouting during CPU hotplug
  net: skb_needs_check() accepts CHECKSUM_NONE for tx
  pstore: Use dynamic spinlock initializer
  pstore: Correctly initialize spinlock and flags
  pstore: Allow prz to control need for locking
  vlan: Propagate MAC address to VLANs
  /proc/iomem: only expose physical resource addresses to privileged users
  Make file credentials available to the seqfile interfaces
  v4l: s5c73m3: fix negation operator
  dentry name snapshots
  ipmi/watchdog: fix watchdog timeout set on reboot
  libnvdimm, btt: fix btt_rw_page not returning errors
  RDMA/uverbs: Fix the check for port number
  PM / Domains: defer dev_pm_domain_set() until genpd->attach_dev succeeds if present
  sched/cgroup: Move sched_online_group() back into css_online() to fix crash
  kaweth: fix oops upon failed memory allocation
  kaweth: fix firmware download
  mpt3sas: Don't overreach ioc->reply_post[] during initialization
  mailbox: handle empty message in tx_tick
  mailbox: skip complete wait event if timer expired
  mailbox: always wait in mbox_send_message for blocking Tx mode
  wil6210: fix deadlock when using fw_no_recovery option
  ath10k: fix null deref on wmi-tlv when trying spectral scan
  isdn/i4l: fix buffer overflow
  isdn: Fix a sleep-in-atomic bug
  net: phy: Do not perform software reset for Generic PHY
  nfc: fdp: fix NULL pointer dereference
  xfs: don't BUG() on mixed direct and mapped I/O
  perf intel-pt: Ensure never to set 'last_ip' when packet 'count' is zero
  perf intel-pt: Use FUP always when scanning for an IP
  perf intel-pt: Fix last_ip usage
  perf intel-pt: Fix ip compression
  drm: rcar-du: Simplify and fix probe error handling
  drm: rcar-du: Perform initialization/cleanup at probe/remove time
  drm/rcar: Nuke preclose hook
  Staging: comedi: comedi_fops: Avoid orphaned proc entry
  Revert "powerpc/numa: Fix percpu allocations to be NUMA aware"
  KVM: PPC: Book3S HV: Save/restore host values of debug registers
  KVM: PPC: Book3S HV: Reload HTM registers explicitly
  KVM: PPC: Book3S HV: Restore critical SPRs to host values on guest exit
  KVM: PPC: Book3S HV: Context-switch EBB registers properly
  drm/nouveau/bar/gf100: fix access to upper half of BAR2
  drm/vmwgfx: Fix gcc-7.1.1 warning
  md/raid5: add thread_group worker async_tx_issue_pending_all
  crypto: authencesn - Fix digest_null crash
  powerpc/pseries: Fix of_node_put() underflow during reconfig remove
  net: reduce skb_warn_bad_offload() noise
  pstore: Make spinlock per zone instead of global
  af_key: Add lock to key dump
  ANDROID: binder: Don't BUG_ON(!spin_is_locked()).
  Linux 4.4.79
  alarmtimer: don't rate limit one-shot timers
  tracing: Fix kmemleak in instance_rmdir
  spmi: Include OF based modalias in device uevent
  of: device: Export of_device_{get_modalias, uvent_modalias} to modules
  drm/mst: Avoid processing partially received up/down message transactions
  drm/mst: Avoid dereferencing a NULL mstb in drm_dp_mst_handle_up_req()
  drm/mst: Fix error handling during MST sideband message reception
  RDMA/core: Initialize port_num in qp_attr
  ceph: fix race in concurrent readdir
  staging: rtl8188eu: add TL-WN722N v2 support
  Revert "perf/core: Drop kernel samples even though :u is specified"
  perf annotate: Fix broken arrow at row 0 connecting jmp instruction to its target
  target: Fix COMPARE_AND_WRITE caw_sem leak during se_cmd quiesce
  udf: Fix deadlock between writeback and udf_setsize()
  NFS: only invalidate dentrys that are clearly invalid.
  Input: i8042 - fix crash at boot time
  MIPS: Fix a typo: s/preset/present/ in r2-to-r6 emulation error message
  MIPS: Send SIGILL for linked branches in `__compute_return_epc_for_insn'
  MIPS: Rename `sigill_r6' to `sigill_r2r6' in `__compute_return_epc_for_insn'
  MIPS: Send SIGILL for BPOSGE32 in `__compute_return_epc_for_insn'
  MIPS: math-emu: Prevent wrong ISA mode instruction emulation
  MIPS: Fix unaligned PC interpretation in `compute_return_epc'
  MIPS: Actually decode JALX in `__compute_return_epc_for_insn'
  MIPS: Save static registers before sysmips
  MIPS: Fix MIPS I ISA /proc/cpuinfo reporting
  x86/ioapic: Pass the correct data to unmask_ioapic_irq()
  x86/acpi: Prevent out of bound access caused by broken ACPI tables
  MIPS: Negate error syscall return in trace
  MIPS: Fix mips_atomic_set() with EVA
  MIPS: Fix mips_atomic_set() retry condition
  ftrace: Fix uninitialized variable in match_records()
  vfio: New external user group/file match
  vfio: Fix group release deadlock
  f2fs: Don't clear SGID when inheriting ACLs
  ipmi:ssif: Add missing unlock in error branch
  ipmi: use rcu lock around call to intf->handlers->sender()
  drm/radeon: Fix eDP for single-display iMac10,1 (v2)
  drm/radeon/ci: disable mclk switching for high refresh rates (v2)
  drm/amd/amdgpu: Return error if initiating read out of range on vram
  s390/syscalls: Fix out of bounds arguments access
  Raid5 should update rdev->sectors after reshape
  cx88: Fix regression in initial video standard setting
  x86/xen: allow userspace access during hypercalls
  md: don't use flush_signals in userspace processes
  usb: renesas_usbhs: gadget: disable all eps when the driver stops
  usb: renesas_usbhs: fix usbhsc_resume() for !USBHSF_RUNTIME_PWCTRL
  USB: cdc-acm: add device-id for quirky printer
  usb: storage: return on error to avoid a null pointer dereference
  xhci: Fix NULL pointer dereference when cleaning up streams for removed host
  xhci: fix 20000ms port resume timeout
  ipvs: SNAT packet replies only for NATed connections
  PCI/PM: Restore the status of PCI devices across hibernation
  af_key: Fix sadb_x_ipsecrequest parsing
  powerpc/asm: Mark cr0 as clobbered in mftb()
  powerpc: Fix emulation of mfocrf in emulate_step()
  powerpc: Fix emulation of mcrf in emulate_step()
  powerpc/64: Fix atomic64_inc_not_zero() to return an int
  iscsi-target: Add login_keys_workaround attribute for non RFC initiators
  scsi: ses: do not add a device to an enclosure if enclosure_add_links() fails.
  PM / Domains: Fix unsafe iteration over modified list of domain providers
  PM / Domains: Fix unsafe iteration over modified list of device links
  ASoC: compress: Derive substream from stream based on direction
  wlcore: fix 64K page support
  Bluetooth: use constant time memory comparison for secret values
  perf intel-pt: Clear FUP flag on error
  perf intel-pt: Ensure IP is zero when state is INTEL_PT_STATE_NO_IP
  perf intel-pt: Fix missing stack clear
  perf intel-pt: Improve sample timestamp
  perf intel-pt: Move decoder error setting into one condition
  NFC: Add sockaddr length checks before accessing sa_family in bind handlers
  nfc: Fix the sockaddr length sanitization in llcp_sock_connect
  nfc: Ensure presence of required attributes in the activate_target handler
  NFC: nfcmrvl: fix firmware-management initialisation
  NFC: nfcmrvl: use nfc-device for firmware download
  NFC: nfcmrvl: do not use device-managed resources
  NFC: nfcmrvl_uart: add missing tty-device sanity check
  NFC: fix broken device allocation
  ath9k: fix tx99 bus error
  ath9k: fix tx99 use after free
  thermal: cpu_cooling: Avoid accessing potentially freed structures
  s5p-jpeg: don't return a random width/height
  ir-core: fix gcc-7 warning on bool arithmetic
  disable new gcc-7.1.1 warnings for now
  sched/fair: Add a backup_cpu to find_best_target
  sched/fair: Try to estimate possible idle states.
  sched/fair: Sync task util before EAS wakeup
  Revert "sched/fair: ensure utilization signals are synchronized before use"
  sched/fair: kick nohz idle balance for misfit task
  sched/fair: Update signals of nohz cpus if we are going idle
  events: add tracepoint for find_best_target
  sched/fair: streamline find_best_target heuristics
  UPSTREAM: af_key: Fix sadb_x_ipsecrequest parsing
  ANDROID: lowmemorykiller: Add tgid to kill message
  Revert "proc: smaps: Allow smaps access for CAP_SYS_RESOURCE"

Conflicts:
	drivers/gpu/drm/msm/adreno/adreno_gpu.c
	drivers/gpu/drm/msm/msm_ringbuffer.c
	drivers/staging/android/lowmemorykiller.c
	kernel/sched/fair.c

Change-Id: Ic3b3a522b79b1deb178e513b56b9c39eea48e079
Signed-off-by: Blagovest Kolenichev <bkolenichev@codeaurora.org>
2017-08-15 09:32:23 -07:00
Brian Foster
56548b6f50 xfs: don't BUG() on mixed direct and mapped I/O
commit 04197b341f23b908193308b8d63d17ff23232598 upstream.

We've had reports of generic/095 causing XFS to BUG() in
__xfs_get_blocks() due to the existence of delalloc blocks on a
direct I/O read. generic/095 issues a mix of various types of I/O,
including direct and memory mapped I/O to a single file. This is
clearly not supported behavior and is known to lead to such
problems. E.g., the lack of exclusion between the direct I/O and
write fault paths means that a write fault can allocate delalloc
blocks in a region of a file that was previously a hole after the
direct read has attempted to flush/inval the file range, but before
it actually reads the block mapping. In turn, the direct read
discovers a delalloc extent and cannot proceed.

While the appropriate solution here is to not mix direct and memory
mapped I/O to the same regions of the same file, the current
BUG_ON() behavior is probably overkill as it can crash the entire
system.  Instead, localize the failure to the I/O in question by
returning an error for a direct I/O that cannot be handled safely
due to delalloc blocks. Be careful to allow the case of a direct
write to post-eof delalloc blocks. This can occur due to speculative
preallocation and is safe as post-eof blocks are not accompanied by
dirty pages in pagecache (conversely, preallocation within eof must
have been zeroed, and thus dirtied, before the inode size could have
been increased beyond said blocks).

Finally, provide an additional warning if a direct I/O write occurs
while the file is memory mapped. This may not catch all problematic
scenarios, but provides a hint that some known-to-be-problematic I/O
methods are in use.

Signed-off-by: Brian Foster <bfoster@redhat.com>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Signed-off-by: Dave Chinner <david@fromorbit.com>
Signed-off-by: Nikolay Borisov <nborisov@suse.com>
Acked-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-08-06 19:19:40 -07:00
Blagovest Kolenichev
e0a0b484bf Merge branch 'android-4.4@e76c0fa' into branch 'msm-4.4'
* refs/heads/tmp-e76c0fa
  Linux 4.4.72
  arm64: ensure extension of smp_store_release value
  arm64: armv8_deprecated: ensure extension of addr
  usercopy: Adjust tests to deal with SMAP/PAN
  RDMA/qib,hfi1: Fix MR reference count leak on write with immediate
  arm64: entry: improve data abort handling of tagged pointers
  arm64: hw_breakpoint: fix watchpoint matching for tagged pointers
  Make __xfs_xattr_put_listen preperly report errors.
  NFSv4: Don't perform cached access checks before we've OPENed the file
  NFS: Ensure we revalidate attributes before using execute_ok()
  mm: consider memblock reservations for deferred memory initialization sizing
  net: better skb->sender_cpu and skb->napi_id cohabitation
  serial: sh-sci: Fix panic when serial console and DMA are enabled
  tty: Drop krefs for interrupted tty lock
  drivers: char: mem: Fix wraparound check to allow mappings up to the end
  ASoC: Fix use-after-free at card unregistration
  ALSA: timer: Fix missing queue indices reset at SNDRV_TIMER_IOCTL_SELECT
  ALSA: timer: Fix race between read and ioctl
  drm/nouveau/tmr: fully separate alarm execution/pending lists
  drm/vmwgfx: Make sure backup_handle is always valid
  drm/vmwgfx: limit the number of mip levels in vmw_gb_surface_define_ioctl()
  drm/vmwgfx: Handle vmalloc() failure in vmw_local_fifo_reserve()
  perf/core: Drop kernel samples even though :u is specified
  powerpc/hotplug-mem: Fix missing endian conversion of aa_index
  powerpc/numa: Fix percpu allocations to be NUMA aware
  powerpc/eeh: Avoid use after free in eeh_handle_special_event()
  scsi: qla2xxx: don't disable a not previously enabled PCI device
  KVM: arm/arm64: Handle possible NULL stage2 pud when ageing pages
  btrfs: fix memory leak in update_space_info failure path
  btrfs: use correct types for page indices in btrfs_page_exists_in_range
  cxl: Fix error path on bad ioctl
  ufs_getfrag_block(): we only grab ->truncate_mutex on block creation path
  ufs_extend_tail(): fix the braino in calling conventions of ufs_new_fragments()
  ufs: set correct ->s_maxsize
  ufs: restore maintaining ->i_blocks
  fix ufs_isblockset()
  ufs: restore proper tail allocation
  fs: add i_blocksize()
  cpuset: consider dying css as offline
  Input: elantech - add Fujitsu Lifebook E546/E557 to force crc_enabled
  drm/msm: Expose our reservation object when exporting a dmabuf.
  target: Re-add check to reject control WRITEs with overflow data
  cpufreq: cpufreq_register_driver() should return -ENODEV if init fails
  stackprotector: Increase the per-task stack canary's random range from 32 bits to 64 bits on 64-bit platforms
  random: properly align get_random_int_hash
  drivers: char: random: add get_random_long()
  iio: proximity: as3935: fix AS3935_INT mask
  iio: light: ltr501 Fix interchanged als/ps register field
  staging/lustre/lov: remove set_fs() call from lov_getstripe()
  usb: chipidea: debug: check before accessing ci_role
  usb: chipidea: udc: fix NULL pointer dereference if udc_start failed
  usb: gadget: f_mass_storage: Serialize wake and sleep execution
  ext4: fix fdatasync(2) after extent manipulation operations
  ext4: keep existing extra fields when inode expands
  ext4: fix SEEK_HOLE
  xen-netfront: cast grant table reference first to type int
  xen-netfront: do not cast grant table reference to signed short
  xen/privcmd: Support correctly 64KB page granularity when mapping memory
  dmaengine: ep93xx: Always start from BASE0
  dmaengine: usb-dmac: Fix DMAOR AE bit definition
  KVM: async_pf: avoid async pf injection when in guest mode
  arm: KVM: Allow unaligned accesses at HYP
  KVM: cpuid: Fix read/write out-of-bounds vulnerability in cpuid emulation
  kvm: async_pf: fix rcu_irq_enter() with irqs enabled
  nfsd: Fix up the "supattr_exclcreat" attributes
  nfsd4: fix null dereference on replay
  drm/amdgpu/ci: disable mclk switching for high refresh rates (v2)
  crypto: gcm - wait for crypto op not signal safe
  KEYS: fix freeing uninitialized memory in key_update()
  KEYS: fix dereferencing NULL payload with nonzero length
  ptrace: Properly initialize ptracer_cred on fork
  serial: ifx6x60: fix use-after-free on module unload
  arch/sparc: support NR_CPUS = 4096
  sparc64: delete old wrap code
  sparc64: new context wrap
  sparc64: add per-cpu mm of secondary contexts
  sparc64: redefine first version
  sparc64: combine activate_mm and switch_mm
  sparc64: reset mm cpumask after wrap
  sparc: Machine description indices can vary
  sparc64: mm: fix copy_tsb to correctly copy huge page TSBs
  net: bridge: start hello timer only if device is up
  net: ethoc: enable NAPI before poll may be scheduled
  net: ping: do not abuse udp_poll()
  ipv6: Fix leak in ipv6_gso_segment().
  vxlan: fix use-after-free on deletion
  tcp: disallow cwnd undo when switching congestion control
  cxgb4: avoid enabling napi twice to the same queue
  ipv6: xfrm: Handle errors reported by xfrm6_find_1stfragopt()
  bnx2x: Fix Multi-Cos
  ANDROID: uid_sys_stats: check previous uid_entry before call find_or_register_uid
  ANDROID: sdcardfs: d_splice_alias can return error values

Change-Id: I829ebf1a9271dcf0462c537e7bfcbcfde322f336
Signed-off-by: Blagovest Kolenichev <bkolenichev@codeaurora.org>
2017-06-20 14:55:15 -07:00
Blagovest Kolenichev
c5f247dd6d Merge branch 'android-4.4@6fc0573' into branch 'msm-4.4'
* refs/heads/tmp-6fc0573:
  Linux 4.4.71
  xfs: only return -errno or success from attr ->put_listent
  xfs: in _attrlist_by_handle, copy the cursor back to userspace
  xfs: fix unaligned access in xfs_btree_visit_blocks
  xfs: bad assertion for delalloc an extent that start at i_size
  xfs: fix indlen accounting error on partial delalloc conversion
  xfs: wait on new inodes during quotaoff dquot release
  xfs: update ag iterator to support wait on new inodes
  xfs: support ability to wait on new inodes
  xfs: fix up quotacheck buffer list error handling
  xfs: prevent multi-fsb dir readahead from reading random blocks
  xfs: handle array index overrun in xfs_dir2_leaf_readbuf()
  xfs: fix over-copying of getbmap parameters from userspace
  xfs: fix off-by-one on max nr_pages in xfs_find_get_desired_pgoff()
  xfs: Fix missed holes in SEEK_HOLE implementation
  mlock: fix mlock count can not decrease in race condition
  mm/migrate: fix refcount handling when !hugepage_migration_supported()
  drm/gma500/psb: Actually use VBT mode when it is found
  slub/memcg: cure the brainless abuse of sysfs attributes
  ALSA: hda - apply STAC_9200_DELL_M22 quirk for Dell Latitude D430
  pcmcia: remove left-over %Z format
  drm/radeon: Unbreak HPD handling for r600+
  drm/radeon/ci: disable mclk switching for high refresh rates (v2)
  scsi: mpt3sas: Force request partial completion alignment
  HID: wacom: Have wacom_tpc_irq guard against possible NULL dereference
  mmc: sdhci-iproc: suppress spurious interrupt with Multiblock read
  i2c: i2c-tiny-usb: fix buffer not being DMA capable
  vlan: Fix tcp checksum offloads in Q-in-Q vlans
  net: phy: marvell: Limit errata to 88m1101
  netem: fix skb_orphan_partial()
  ipv4: add reference counting to metrics
  sctp: fix ICMP processing if skb is non-linear
  tcp: avoid fastopen API to be used on AF_UNSPEC
  virtio-net: enable TSO/checksum offloads for Q-in-Q vlans
  be2net: Fix offload features for Q-in-Q packets
  ipv6: fix out of bound writes in __ip6_append_data()
  bridge: start hello_timer when enabling KERNEL_STP in br_stp_start
  qmi_wwan: add another Lenovo EM74xx device ID
  bridge: netlink: check vlan_default_pvid range
  ipv6: Check ip6_find_1stfragopt() return value properly.
  ipv6: Prevent overrun when parsing v6 header options
  net: Improve handling of failures on link and route dumps
  tcp: eliminate negative reordering in tcp_clean_rtx_queue
  sctp: do not inherit ipv6_{mc|ac|fl}_list from parent
  sctp: fix src address selection if using secondary addresses for ipv6
  tcp: avoid fragmenting peculiar skbs in SACK
  s390/qeth: avoid null pointer dereference on OSN
  s390/qeth: unbreak OSM and OSN support
  s390/qeth: handle sysfs error during initialization
  ipv6/dccp: do not inherit ipv6_mc_list from parent
  dccp/tcp: do not inherit mc_list from parent
  sparc: Fix -Wstringop-overflow warning
  android: base-cfg: disable CONFIG_NFS_FS and CONFIG_NFSD
  schedstats/eas: guard properly to avoid breaking non-smp schedstats users
  BACKPORT: f2fs: sanity check size of nat and sit cache
  FROMLIST: f2fs: sanity check checkpoint segno and blkoff
  sched/tune: don't use schedtune before it is ready
  sched/fair: use SCHED_CAPACITY_SCALE for energy normalization
  sched/{fair,tune}: use reciprocal_value to compute boost margin
  sched/tune: Initialize raw_spin_lock in boosted_groups
  sched/tune: report when SchedTune has not been initialized
  sched/tune: fix sched_energy_diff tracepoint
  sched/tune: increase group count to 5
  cpufreq/schedutil: use boosted_cpu_util for PELT to match WALT
  sched/fair: Fix sched_group_energy() to support per-cpu capacity states
  sched/fair: discount task contribution to find CPU with lowest utilization
  sched/fair: ensure utilization signals are synchronized before use
  sched/fair: remove task util from own cpu when placing waking task
  trace:sched: Make util_avg in load_avg trace reflect PELT/WALT as used
  sched/fair: Add eas (& cas) specific rq, sd and task stats
  sched/core: Fix PELT jump to max OPP upon util increase
  sched: EAS & 'single cpu per cluster'/cpu hotplug interoperability
  UPSTREAM: sched/core: Fix group_entity's share update
  UPSTREAM: sched/fair: Fix calc_cfs_shares() fixed point arithmetics width confusion
  UPSTREAM: sched/fair: Fix incorrect task group ->load_avg
  UPSTREAM: sched/fair: Fix effective_load() to consistently use smoothed load
  UPSTREAM: sched/fair: Propagate asynchrous detach
  UPSTREAM: sched/fair: Propagate load during synchronous attach/detach
  UPSTREAM: sched/fair: Fix hierarchical order in rq->leaf_cfs_rq_list
  BACKPORT: sched/fair: Factorize PELT update
  UPSTREAM: sched/fair: Factorize attach/detach entity
  UPSTREAM: sched/fair: Improve PELT stuff some more
  UPSTREAM: sched/fair: Apply more PELT fixes
  UPSTREAM: sched/fair: Fix post_init_entity_util_avg() serialization
  BACKPORT: sched/fair: Initiate a new task's util avg to a bounded value
  sched/fair: Simplify idle_idx handling in select_idle_sibling()
  sched/fair: refactor find_best_target() for simplicity
  sched/fair: Change cpu iteration order in find_best_target()
  sched/core: Add first cpu w/ max/min orig capacity to root domain
  sched/core: Remove remnants of commit fd5c98da1a42
  sched: Remove sysctl_sched_is_big_little
  sched/fair: Code !is_big_little path into select_energy_cpu_brute()
  EAS: sched/fair: Re-integrate 'honor sync wakeups' into wakeup path
  Fixup!: sched/fair.c: Set SchedTune specific struct energy_env.task
  sched/fair: Energy-aware wake-up task placement
  sched/fair: Add energy_diff dead-zone margin
  sched/fair: Decommission energy_aware_wake_cpu()
  sched/fair: Do not force want_affine eq. true if EAS is enabled
  arm64: Set SD_ASYM_CPUCAPACITY sched_domain flag on DIE level
  UPSTREAM: sched/fair: Fix incorrect comment for capacity_margin
  UPSTREAM: sched/fair: Avoid pulling tasks from non-overloaded higher capacity groups
  UPSTREAM: sched/fair: Add per-CPU min capacity to sched_group_capacity
  UPSTREAM: sched/fair: Consider spare capacity in find_idlest_group()
  UPSTREAM: sched/fair: Compute task/cpu utilization at wake-up correctly
  UPSTREAM: sched/fair: Let asymmetric CPU configurations balance at wake-up
  UPSTREAM: sched/core: Enable SD_BALANCE_WAKE for asymmetric capacity systems
  UPSTREAM: sched/core: Pass child domain into sd_init()
  UPSTREAM: sched/core: Introduce SD_ASYM_CPUCAPACITY sched_domain topology flag
  UPSTREAM: sched/core: Remove unnecessary NULL-pointer check
  UPSTREAM: sched/fair: Optimize find_idlest_cpu() when there is no choice
  BACKPORT: sched/fair: Make the use of prev_cpu consistent in the wakeup path
  UPSTREAM: sched/core: Fix power to capacity renaming in comment
  Partial Revert: "WIP: sched: Add cpu capacity awareness to wakeup balancing"
  Revert "WIP: sched: Consider spare cpu capacity at task wake-up"
  FROM-LIST: cpufreq: schedutil: Redefine the rate_limit_us tunable
  cpufreq: schedutil: add up/down frequency transition rate limits
  trace/sched: add rq utilization signal for WALT
  sched/cpufreq: make schedutil use WALT signal
  sched: cpufreq: use rt_avg as estimate of required RT CPU capacity
  cpufreq: schedutil: move slow path from workqueue to SCHED_FIFO task
  BACKPORT: kthread: allow to cancel kthread work
  sched/cpufreq: fix tunables for schedfreq governor
  BACKPORT: cpufreq: schedutil: New governor based on scheduler utilization data
  sched: backport cpufreq hooks from 4.9-rc4
  ANDROID: Kconfig: add depends for UID_SYS_STATS
  ANDROID: hid: uhid: implement refcount for open and close
  Revert "ext4: require encryption feature for EXT4_IOC_SET_ENCRYPTION_POLICY"
  ANDROID: mnt: Fix next_descendent

Conflicts:
	include/trace/events/sched.h
	kernel/sched/Makefile
	kernel/sched/core.c
	kernel/sched/fair.c
	kernel/sched/sched.h

Change-Id: I55318828f2c858e192ac7015bcf2bf0ec5c5b2c5
Signed-off-by: Blagovest Kolenichev <bkolenichev@codeaurora.org>
2017-06-19 16:59:55 -07:00
Artem Savkov
bc5f31d34e Make __xfs_xattr_put_listen preperly report errors.
commit 791cc43b36eb1f88166c8505900cad1b43c7fe1a upstream.

Commit 2a6fba6 "xfs: only return -errno or success from attr ->put_listent"
changes the returnvalue of __xfs_xattr_put_listen to 0 in case when there is
insufficient space in the buffer assuming that setting context->count to -1
would be enough, but all of the ->put_listent callers only check seen_enough.
This results in a failed assertion:
XFS: Assertion failed: context->count >= 0, file: fs/xfs/xfs_xattr.c, line: 175
in insufficient buffer size case.

This is only reproducible with at least 2 xattrs and only when the buffer
gets depleted before the last one.

Furthermore if buffersize is such that it is enough to hold the last xattr's
name, but not enough to hold the sum of preceeding xattr names listxattr won't
fail with ERANGE, but will suceed returning last xattr's name without the
first character. The first character end's up overwriting data stored at
(context->alist - 1).

Signed-off-by: Artem Savkov <asavkov@redhat.com>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Signed-off-by: Dave Chinner <david@fromorbit.com>
Cc: Nikolay Borisov <nborisov@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-06-14 13:16:27 +02:00
Fabian Frederick
044470266a fs: add i_blocksize()
commit 93407472a21b82f39c955ea7787e5bc7da100642 upstream.

Replace all 1 << inode->i_blkbits and (1 << inode->i_blkbits) in fs
branch.

This patch also fixes multiple checkpatch warnings: WARNING: Prefer
'unsigned int' to bare use of 'unsigned'

Thanks to Andrew Morton for suggesting more appropriate function instead
of macro.

[geliangtang@gmail.com: truncate: use i_blocksize()]
  Link: http://lkml.kernel.org/r/9c8b2cd83c8f5653805d43debde9fa8817e02fc4.1484895804.git.geliangtang@gmail.com
Link: http://lkml.kernel.org/r/1481319905-10126-1-git-send-email-fabf@skynet.be
Signed-off-by: Fabian Frederick <fabf@skynet.be>
Signed-off-by: Geliang Tang <geliangtang@gmail.com>
Cc: Alexander Viro <viro@zeniv.linux.org.uk>
Cc: Ross Zwisler <ross.zwisler@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-06-14 13:16:24 +02:00
Eric Sandeen
9d65be36a7 xfs: only return -errno or success from attr ->put_listent
commit 2a6fba6d2311151598abaa1e7c9abd5f8d024a43 upstream.

Today, the put_listent formatters return either 1 or 0; if
they return 1, some callers treat this as an error and return
it up the stack, despite "1" not being a valid (negative)
error code.

The intent seems to be that if the input buffer is full,
we set seen_enough or set count = -1, and return 1;
but some callers check the return before checking the
seen_enough or count fields of the context.

Fix this by only returning non-zero for actual errors
encountered, and rely on the caller to first check the
return value, then check the values in the context to
decide what to do.

Signed-off-by: Eric Sandeen <sandeen@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Dave Chinner <david@fromorbit.com>
Signed-off-by: Nikolay Borisov <nborisov@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-06-07 12:06:03 +02:00
Darrick J. Wong
1b03d85a4f xfs: in _attrlist_by_handle, copy the cursor back to userspace
commit 0facef7fb053be4353c0a48c2f48c9dbee91cb19 upstream.

When we're iterating inode xattrs by handle, we have to copy the
cursor back to userspace so that a subsequent invocation actually
retrieves subsequent contents.

Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Dave Chinner <david@fromorbit.com>
Cc: Nikolay Borisov <nborisov@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-06-07 12:06:03 +02:00
Eric Sandeen
c56605c69b xfs: fix unaligned access in xfs_btree_visit_blocks
commit a4d768e702de224cc85e0c8eac9311763403b368 upstream.

This structure copy was throwing unaligned access warnings on sparc64:

Kernel unaligned access at TPC[1043c088] xfs_btree_visit_blocks+0x88/0xe0 [xfs]

xfs_btree_copy_ptrs does a memcpy, which avoids it.

Signed-off-by: Eric Sandeen <sandeen@redhat.com>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-06-07 12:06:03 +02:00
Zorro Lang
9f7b5da057 xfs: bad assertion for delalloc an extent that start at i_size
commit 892d2a5f705723b2cb488bfb38bcbdcf83273184 upstream.

By run fsstress long enough time enough in RHEL-7, I find an
assertion failure (harder to reproduce on linux-4.11, but problem
is still there):

  XFS: Assertion failed: (iflags & BMV_IF_DELALLOC) != 0, file: fs/xfs/xfs_bmap_util.c

The assertion is in xfs_getbmap() funciton:

  if (map[i].br_startblock == DELAYSTARTBLOCK &&
-->   map[i].br_startoff <= XFS_B_TO_FSB(mp, XFS_ISIZE(ip)))
          ASSERT((iflags & BMV_IF_DELALLOC) != 0);

When map[i].br_startoff == XFS_B_TO_FSB(mp, XFS_ISIZE(ip)), the
startoff is just at EOF. But we only need to make sure delalloc
extents that are within EOF, not include EOF.

Signed-off-by: Zorro Lang <zlang@redhat.com>
Reviewed-by: Brian Foster <bfoster@redhat.com>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-06-07 12:06:02 +02:00
Brian Foster
3ba13d7f5b xfs: fix indlen accounting error on partial delalloc conversion
commit 0daaecacb83bc6b656a56393ab77a31c28139bc7 upstream.

The delalloc -> real block conversion path uses an incorrect
calculation in the case where the middle part of a delalloc extent
is being converted. This is documented as a rare situation because
XFS generally attempts to maximize contiguity by converting as much
of a delalloc extent as possible.

If this situation does occur, the indlen reservation for the two new
delalloc extents left behind by the conversion of the middle range
is calculated and compared with the original reservation. If more
blocks are required, the delta is allocated from the global block
pool. This delta value can be characterized as the difference
between the new total requirement (temp + temp2) and the currently
available reservation minus those blocks that have already been
allocated (startblockval(PREV.br_startblock) - allocated).

The problem is that the current code does not account for previously
allocated blocks correctly. It subtracts the current allocation
count from the (new - old) delta rather than the old indlen
reservation. This means that more indlen blocks than have been
allocated end up stashed in the remaining extents and free space
accounting is broken as a result.

Fix up the calculation to subtract the allocated block count from
the original extent indlen and thus correctly allocate the
reservation delta based on the difference between the new total
requirement and the unused blocks from the original reservation.
Also remove a bogus assert that contradicts the fact that the new
indlen reservation can be larger than the original indlen
reservation.

Signed-off-by: Brian Foster <bfoster@redhat.com>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-06-07 12:06:02 +02:00
Brian Foster
1d41dd5c1f xfs: wait on new inodes during quotaoff dquot release
commit e20c8a517f259cb4d258e10b0cd5d4b30d4167a0 upstream.

The quotaoff operation has a race with inode allocation that results
in a livelock. An inode allocation that occurs before the quota
status flags are updated acquires the appropriate dquots for the
inode via xfs_qm_vop_dqalloc(). It then inserts the XFS_INEW inode
into the perag radix tree, sometime later attaches the dquots to the
inode and finally clears the XFS_INEW flag. Quotaoff expects to
release the dquots from all inodes in the filesystem via
xfs_qm_dqrele_all_inodes(). This invokes the AG inode iterator,
which skips inodes in the XFS_INEW state because they are not fully
constructed. If the scan occurs after dquots have been attached to
an inode, but before XFS_INEW is cleared, the newly allocated inode
will continue to hold a reference to the applicable dquots. When
quotaoff invokes xfs_qm_dqpurge_all(), the reference count of those
dquot(s) remain elevated and the dqpurge scan spins indefinitely.

To address this problem, update the xfs_qm_dqrele_all_inodes() scan
to wait on inodes marked on the XFS_INEW state. We wait on the
inodes explicitly rather than skip and retry to avoid continuous
retry loops due to a parallel inode allocation workload. Since
quotaoff updates the quota state flags and uses a synchronous
transaction before the dqrele scan, and dquots are attached to
inodes after radix tree insertion iff quota is enabled, one INEW
waiting pass through the AG guarantees that the scan has processed
all inodes that could possibly hold dquot references.

Reported-by: Eryu Guan <eguan@redhat.com>
Signed-off-by: Brian Foster <bfoster@redhat.com>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-06-07 12:06:02 +02:00
Brian Foster
9d97d6a152 xfs: update ag iterator to support wait on new inodes
commit ae2c4ac2dd39b23a87ddb14ceddc3f2872c6aef5 upstream.

The AG inode iterator currently skips new inodes as such inodes are
inserted into the inode radix tree before they are fully
constructed. Certain contexts require the ability to wait on the
construction of new inodes, however. The fs-wide dquot release from
the quotaoff sequence is an example of this.

Update the AG inode iterator to support the ability to wait on
inodes flagged with XFS_INEW upon request. Create a new
xfs_inode_ag_iterator_flags() interface and support a set of
iteration flags to modify the iteration behavior. When the
XFS_AGITER_INEW_WAIT flag is set, include XFS_INEW flags in the
radix tree inode lookup and wait on them before the callback is
executed.

Signed-off-by: Brian Foster <bfoster@redhat.com>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-06-07 12:06:02 +02:00
Brian Foster
8e25af0dc5 xfs: support ability to wait on new inodes
commit 756baca27fff3ecaeab9dbc7a5ee35a1d7bc0c7f upstream.

Inodes that are inserted into the perag tree but still under
construction are flagged with the XFS_INEW bit. Most contexts either
skip such inodes when they are encountered or have the ability to
handle them.

The runtime quotaoff sequence introduces a context that must wait
for construction of such inodes to correctly ensure that all dquots
in the fs are released. In anticipation of this, support the ability
to wait on new inodes. Wake the appropriate bit when XFS_INEW is
cleared.

Signed-off-by: Brian Foster <bfoster@redhat.com>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-06-07 12:06:02 +02:00
Brian Foster
cf55c35974 xfs: fix up quotacheck buffer list error handling
commit 20e8a063786050083fe05b4f45be338c60b49126 upstream.

The quotacheck error handling of the delwri buffer list assumes the
resident buffers are locked and doesn't clear the _XBF_DELWRI_Q flag
on the buffers that are dequeued. This can lead to assert failures
on buffer release and possibly other locking problems.

Move this code to a delwri queue cancel helper function to
encapsulate the logic required to properly release buffers from a
delwri queue. Update the helper to clear the delwri queue flag and
call it from quotacheck.

Signed-off-by: Brian Foster <bfoster@redhat.com>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-06-07 12:06:02 +02:00
Brian Foster
a76647a71c xfs: prevent multi-fsb dir readahead from reading random blocks
commit cb52ee334a45ae6c78a3999e4b473c43ddc528f4 upstream.

Directory block readahead uses a complex iteration mechanism to map
between high-level directory blocks and underlying physical extents.
This mechanism attempts to traverse the higher-level dir blocks in a
manner that handles multi-fsb directory blocks and simultaneously
maintains a reference to the corresponding physical blocks.

This logic doesn't handle certain (discontiguous) physical extent
layouts correctly with multi-fsb directory blocks. For example,
consider the case of a 4k FSB filesystem with a 2 FSB (8k) directory
block size and a directory with the following extent layout:

 EXT: FILE-OFFSET      BLOCK-RANGE      AG AG-OFFSET        TOTAL
   0: [0..7]:          88..95            0 (88..95)             8
   1: [8..15]:         80..87            0 (80..87)             8
   2: [16..39]:        168..191          0 (168..191)          24
   3: [40..63]:        5242952..5242975  1 (72..95)            24

Directory block 0 spans physical extents 0 and 1, dirblk 1 lies
entirely within extent 2 and dirblk 2 spans extents 2 and 3. Because
extent 2 is larger than the directory block size, the readahead code
erroneously assumes the block is contiguous and issues a readahead
based on the physical mapping of the first fsb of the dirblk. This
results in read verifier failure and a spurious corruption or crc
failure, depending on the filesystem format.

Further, the subsequent readahead code responsible for walking
through the physical table doesn't correctly advance the physical
block reference for dirblk 2. Instead of advancing two physical
filesystem blocks, the first iteration of the loop advances 1 block
(correctly), but the subsequent iteration advances 2 more physical
blocks because the next physical extent (extent 3, above) happens to
cover more than dirblk 2. At this point, the higher-level directory
block walking is completely off the rails of the actual physical
layout of the directory for the respective mapping table.

Update the contiguous dirblock logic to consider the current offset
in the physical extent to avoid issuing directory readahead to
unrelated blocks. Also, update the mapping table advancing code to
consider the current offset within the current dirblock to avoid
advancing the mapping reference too far beyond the dirblock.

Signed-off-by: Brian Foster <bfoster@redhat.com>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-06-07 12:06:02 +02:00
Eric Sandeen
8caa9a54b3 xfs: handle array index overrun in xfs_dir2_leaf_readbuf()
commit 023cc840b40fad95c6fe26fff1d380a8c9d45939 upstream.

Carlos had a case where "find" seemed to start spinning
forever and never return.

This was on a filesystem with non-default multi-fsb (8k)
directory blocks, and a fragmented directory with extents
like this:

0:[0,133646,2,0]
1:[2,195888,1,0]
2:[3,195890,1,0]
3:[4,195892,1,0]
4:[5,195894,1,0]
5:[6,195896,1,0]
6:[7,195898,1,0]
7:[8,195900,1,0]
8:[9,195902,1,0]
9:[10,195908,1,0]
10:[11,195910,1,0]
11:[12,195912,1,0]
12:[13,195914,1,0]
...

i.e. the first extent is a contiguous 2-fsb dir block, but
after that it is fragmented into 1 block extents.

At the top of the readdir path, we allocate a mapping array
which (for this filesystem geometry) can hold 10 extents; see
the assignment to map_info->map_size.  During readdir, we are
therefore able to map extents 0 through 9 above into the array
for readahead purposes.  If we count by 2, we see that the last
mapped index (9) is the first block of a 2-fsb directory block.

At the end of xfs_dir2_leaf_readbuf() we have 2 loops to fill
more readahead; the outer loop assumes one full dir block is
processed each loop iteration, and an inner loop that ensures
that this is so by advancing to the next extent until a full
directory block is mapped.

The problem is that this inner loop may step past the last
extent in the mapping array as it tries to reach the end of
the directory block.  This will read garbage for the extent
length, and as a result the loop control variable 'j' may
become corrupted and never fail the loop conditional.

The number of valid mappings we have in our array is stored
in map->map_valid, so stop this inner loop based on that limit.

There is an ASSERT at the top of the outer loop for this
same condition, but we never made it out of the inner loop,
so the ASSERT never fired.

Huge appreciation for Carlos for debugging and isolating
the problem.

Debugged-and-analyzed-by: Carlos Maiolino <cmaiolino@redhat.com>
Signed-off-by: Eric Sandeen <sandeen@redhat.com>
Tested-by: Carlos Maiolino <cmaiolino@redhat.com>
Reviewed-by: Carlos Maiolino <cmaiolino@redhat.com>
Reviewed-by: Bill O'Donnell <billodo@redhat.com>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-06-07 12:06:02 +02:00
Darrick J. Wong
0ace12c114 xfs: fix over-copying of getbmap parameters from userspace
commit be6324c00c4d1e0e665f03ed1fc18863a88da119 upstream.

In xfs_ioc_getbmap, we should only copy the fields of struct getbmap
from userspace, or else we end up copying random stack contents into the
kernel.  struct getbmap is a strict subset of getbmapx, so a partial
structure copy should work fine.

Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-06-07 12:06:02 +02:00
Eryu Guan
fe705621b9 xfs: fix off-by-one on max nr_pages in xfs_find_get_desired_pgoff()
commit 8affebe16d79ebefb1d9d6d56a46dc89716f9453 upstream.

xfs_find_get_desired_pgoff() is used to search for offset of hole or
data in page range [index, end] (both inclusive), and the max number
of pages to search should be at least one, if end == index.
Otherwise the only page is missed and no hole or data is found,
which is not correct.

When block size is smaller than page size, this can be demonstrated
by preallocating a file with size smaller than page size and writing
data to the last block. E.g. run this xfs_io command on a 1k block
size XFS on x86_64 host.

  # xfs_io -fc "falloc 0 3k" -c "pwrite 2k 1k" \
  	    -c "seek -d 0" /mnt/xfs/testfile
  wrote 1024/1024 bytes at offset 2048
  1 KiB, 1 ops; 0.0000 sec (33.675 MiB/sec and 34482.7586 ops/sec)
  Whence  Result
  DATA    EOF

Data at offset 2k was missed, and lseek(2) returned ENXIO.

This is uncovered by generic/285 subtest 07 and 08 on ppc64 host,
where pagesize is 64k. Because a recent change to generic/285
reduced the preallocated file size to smaller than 64k.

Signed-off-by: Eryu Guan <eguan@redhat.com>
Reviewed-by: Jan Kara <jack@suse.cz>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-06-07 12:06:01 +02:00
Jan Kara
b9a7816997 xfs: Fix missed holes in SEEK_HOLE implementation
commit 5375023ae1266553a7baa0845e82917d8803f48c upstream.

XFS SEEK_HOLE implementation could miss a hole in an unwritten extent as
can be seen by the following command:

xfs_io -c "falloc 0 256k" -c "pwrite 0 56k" -c "pwrite 128k 8k"
       -c "seek -h 0" file
wrote 57344/57344 bytes at offset 0
56 KiB, 14 ops; 0.0000 sec (49.312 MiB/sec and 12623.9856 ops/sec)
wrote 8192/8192 bytes at offset 131072
8 KiB, 2 ops; 0.0000 sec (70.383 MiB/sec and 18018.0180 ops/sec)
Whence	Result
HOLE	139264

Where we can see that hole at offset 56k was just ignored by SEEK_HOLE
implementation. The bug is in xfs_find_get_desired_pgoff() which does
not properly detect the case when pages are not contiguous.

Fix the problem by properly detecting when found page has larger offset
than expected.

Fixes: d126d43f63
Signed-off-by: Jan Kara <jack@suse.cz>
Reviewed-by: Brian Foster <bfoster@redhat.com>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-06-07 12:06:01 +02:00
Linux Build Service Account
86dc30eade Merge "Merge branch 'android-4.4@c71ad0f' into branch 'msm-4.4'" 2017-04-27 07:06:52 -07:00
Linux Build Service Account
5e10c8152d Merge "ANDROID: fix acl leaks" 2017-04-24 06:47:50 -07:00
Mark Salyzyn
1cfb211346 ANDROID: fix acl leaks
Fixes regressions associated with commit 073931017b49
("posix_acl: Clear SGID bit when setting file permissions")

Signed-off-by: Mark Salyzyn <salyzyn@google.com>
Bug: 32458736
Change-Id: I6ee127dfdf3594d24ccd8560541ac554c5b05eb6
[d-cagle@codeaurora.org: Resolve merge conflicts]
Git-repo: https://android.googlesource.com/kernel/msm/
Git-commit: 74d0e4d3d96d0ca82d39635318a69d55e966b767
Signed-off-by: Dennis Cagle <d-cagle@codeaurora.org>
2017-04-21 11:11:43 -07:00
Darrick J. Wong
6d43e485e0 xfs: clear _XBF_PAGES from buffers when readahead page
commit 2aa6ba7b5ad3189cc27f14540aa2f57f0ed8df4b upstream.

If we try to allocate memory pages to back an xfs_buf that we're trying
to read, it's possible that we'll be so short on memory that the page
allocation fails.  For a blocking read we'll just wait, but for
readahead we simply dump all the pages we've collected so far.

Unfortunately, after dumping the pages we neglect to clear the
_XBF_PAGES state, which means that the subsequent call to xfs_buf_free
thinks that b_pages still points to pages we own.  It then double-frees
the b_pages pages.

This results in screaming about negative page refcounts from the memory
manager, which xfs oughtn't be triggering.  To reproduce this case,
mount a filesystem where the size of the inodes far outweighs the
availalble memory (a ~500M inode filesystem on a VM with 300MB memory
did the trick here) and run bulkstat in parallel with other memory
eating processes to put a huge load on the system.  The "check summary"
phase of xfs_scrub also works for this purpose.

Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Eric Sandeen <sandeen@redhat.com>
Cc: Ivan Kozik <ivan@ludios.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-03-30 09:35:19 +02:00