* origin/tmp-da9a92f:
arm64: kaslr: increase randomization granularity
arm64: relocatable: deal with physically misaligned kernel images
arm64: don't map TEXT_OFFSET bytes below the kernel if we can avoid it
arm64: kernel: replace early 64-bit literal loads with move-immediates
arm64: introduce mov_q macro to move a constant into a 64-bit register
arm64: kernel: perform relocation processing from ID map
arm64: kernel: use literal for relocated address of __secondary_switched
arm64: kernel: don't export local symbols from head.S
arm64: simplify kernel segment mapping granularity
arm64: cover the .head.text section in the .text segment mapping
arm64: move early boot code to the .init segment
arm64: use 'segment' rather than 'chunk' to describe mapped kernel regions
arm64: mm: Mark .rodata as RO
Linux 4.4.16
ovl: verify upper dentry before unlink and rename
drm/i915: Revert DisplayPort fast link training feature
tmpfs: fix regression hang in fallocate undo
tmpfs: don't undo fallocate past its last page
crypto: qat - make qat_asym_algs.o depend on asn1 headers
xen/acpi: allow xen-acpi-processor driver to load on Xen 4.7
File names with trailing period or space need special case conversion
cifs: dynamic allocation of ntlmssp blob
Fix reconnect to not defer smb3 session reconnect long after socket reconnect
53c700: fix BUG on untagged commands
s390: fix test_fp_ctl inline assembly contraints
scsi: fix race between simultaneous decrements of ->host_failed
ovl: verify upper dentry in ovl_remove_and_whiteout()
ovl: Copy up underlying inode's ->i_mode to overlay inode
ARM: mvebu: fix HW I/O coherency related deadlocks
ARM: dts: armada-38x: fix MBUS_ID for crypto SRAM on Armada 385 Linksys
ARM: sunxi/dt: make the CHIP inherit from allwinner,sun5i-a13
ALSA: hda: add AMD Stoney PCI ID with proper driver caps
ALSA: hda - fix use-after-free after module unload
ALSA: ctl: Stop notification after disconnection
ALSA: pcm: Free chmap at PCM free callback, too
ALSA: hda/realtek - add new pin definition in alc225 pin quirk table
ALSA: hda - fix read before array start
ALSA: hda - Add PCI ID for Kabylake-H
ALSA: hda/realtek: Add Lenovo L460 to docking unit fixup
ALSA: timer: Fix negative queue usage by racy accesses
ALSA: echoaudio: Fix memory allocation
ALSA: au88x0: Fix calculation in vortex_wtdma_bufshift()
ALSA: hda / realtek - add two more Thinkpad IDs (5050,5053) for tpt460 fixup
ALSA: hda - Fix the headset mic jack detection on Dell machine
ALSA: dummy: Fix a use-after-free at closing
hwmon: (dell-smm) Cache fan_type() calls and change fan detection
hwmon: (dell-smm) Disallow fan_type() calls on broken machines
hwmon: (dell-smm) Restrict fan control and serial number to CAP_SYS_ADMIN by default
tty/vt/keyboard: fix OOB access in do_compute_shiftstate()
tty: vt: Fix soft lockup in fbcon cursor blink timer.
iio:ad7266: Fix probe deferral for vref
iio:ad7266: Fix support for optional regulators
iio:ad7266: Fix broken regulator error handling
iio: accel: kxsd9: fix the usage of spi_w8r8()
staging: iio: accel: fix error check
iio: hudmidity: hdc100x: fix incorrect shifting and scaling
iio: humidity: hdc100x: fix IIO_TEMP channel reporting
iio: humidity: hdc100x: correct humidity integration time mask
iio: proximity: as3935: fix buffer stack trashing
iio: proximity: as3935: remove triggered buffer processing
iio: proximity: as3935: correct IIO_CHAN_INFO_RAW output
iio: light apds9960: Add the missing dev.parent
iio:st_pressure: fix sampling gains (bring inline with ABI)
iio: Fix error handling in iio_trigger_attach_poll_func
xen/balloon: Fix declared-but-not-defined warning
perf/x86: Fix undefined shift on 32-bit kernels
memory: omap-gpmc: Fix omap gpmc EXTRADELAY timing
drm/vmwgfx: Fix error paths when mapping framebuffer
drm/vmwgfx: Delay pinning fbdev framebuffer until after mode set
drm/vmwgfx: Check pin count before attempting to move a buffer
drm/vmwgfx: Work around mode set failure in 2D VMs
drm/vmwgfx: Add an option to change assumed FB bpp
drm/ttm: Make ttm_bo_mem_compat available
drm: atmel-hlcdc: actually disable scaling when no scaling is required
drm: make drm_atomic_set_mode_prop_for_crtc() more reliable
drm: add missing drm_mode_set_crtcinfo call
drm/i915: Update CDCLK_FREQ register on BDW after changing cdclk frequency
drm/i915: Update ifdeffery for mutex->owner
drm/i915: Refresh cached DP port register value on resume
drm/i915/ilk: Don't disable SSC source if it's in use
drm/nouveau/disp/sor/gf119: select correct sor when poking training pattern
drm/nouveau: fix for disabled fbdev emulation
drm/nouveau/fbcon: fix out-of-bounds memory accesses
drm/nouveau/gr/gf100-: update sm error decoding from gk20a nvgpu headers
drm/nouveau/disp/sor/gf119: both links use the same training register
virtio_balloon: fix PFN format for virtio-1
drm/dp/mst: Always clear proposed vcpi table for port.
drm/amdkfd: destroy dbgmgr in notifier release
drm/amdkfd: unbind only existing processes
ubi: Make recover_peb power cut aware
drm/amdgpu/gfx7: fix broken condition check
drm/radeon: fix asic initialization for virtualized environments
btrfs: account for non-CoW'd blocks in btrfs_abort_transaction
percpu: fix synchronization between synchronous map extension and chunk destruction
percpu: fix synchronization between chunk->map_extend_work and chunk destruction
af_unix: fix hard linked sockets on overlay
vfs: add d_real_inode() helper
arm64: Rework valid_user_regs
ipmi: Remove smi_msg from waiting_rcv_msgs list before handle_one_recv_msg()
drm/mgag200: Black screen fix for G200e rev 4
iommu/amd: Fix unity mapping initialization race
iommu/vt-d: Enable QI on all IOMMUs before setting root entry
iommu/arm-smmu: Wire up map_sg for arm-smmu-v3
base: make module_create_drivers_dir race-free
tracing: Handle NULL formats in hold_module_trace_bprintk_format()
HID: multitouch: enable palm rejection for Windows Precision Touchpad
HID: hiddev: validate num_values for HIDIOCGUSAGES, HIDIOCSUSAGES commands
HID: elo: kill not flush the work
KVM: nVMX: VMX instructions: fix segment checks when L1 is in long mode.
kvm: Fix irq route entries exceeding KVM_MAX_IRQ_ROUTES
KEYS: potential uninitialized variable
ARCv2: LLSC: software backoff is NOT needed starting HS2.1c
ARCv2: Check for LL-SC livelock only if LLSC is enabled
ipv6: Fix mem leak in rt6i_pcpu
cdc_ncm: workaround for EM7455 "silent" data interface
net_sched: fix mirrored packets checksum
packet: Use symmetric hash for PACKET_FANOUT_HASH.
sched/fair: Fix cfs_rq avg tracking underflow
UBIFS: Implement ->migratepage()
mm: Export migrate_page_move_mapping and migrate_page_copy
MIPS: KVM: Fix modular KVM under QEMU
ARM: 8579/1: mm: Fix definition of pmd_mknotpresent
ARM: 8578/1: mm: ensure pmd_present only checks the valid bit
ARM: imx6ul: Fix Micrel PHY mask
NFS: Fix another OPEN_DOWNGRADE bug
make nfs_atomic_open() call d_drop() on all ->open_context() errors.
nfsd: check permissions when setting ACLs
posix_acl: Add set_posix_acl
nfsd: Extend the mutex holding region around in nfsd4_process_open2()
nfsd: Always lock state exclusively.
nfsd4/rpc: move backchannel create logic into rpc code
writeback: use higher precision calculation in domain_dirty_limits()
thermal: cpu_cooling: fix improper order during initialization
uvc: Forward compat ioctls to their handlers directly
Revert "gpiolib: Split GPIO flags parsing and GPIO configuration"
x86/amd_nb: Fix boot crash on non-AMD systems
kprobes/x86: Clear TF bit in fault on single-stepping
x86, build: copy ldlinux.c32 to image.iso
locking/static_key: Fix concurrent static_key_slow_inc()
locking/qspinlock: Fix spin_unlock_wait() some more
locking/ww_mutex: Report recursive ww_mutex locking early
of: irq: fix of_irq_get[_byname]() kernel-doc
of: fix autoloading due to broken modalias with no 'compatible'
mnt: If fs_fully_visible fails call put_filesystem.
mnt: Account for MS_RDONLY in fs_fully_visible
mnt: fs_fully_visible test the proper mount for MNT_LOCKED
usb: common: otg-fsm: add license to usb-otg-fsm
USB: EHCI: declare hostpc register as zero-length array
usb: dwc2: fix regression on big-endian PowerPC/ARM systems
powerpc/tm: Always reclaim in start_thread() for exec() class syscalls
powerpc/pseries: Fix IBM_ARCH_VEC_NRCORES_OFFSET since POWER8NVL was added
powerpc/pseries: Fix PCI config address for DDW
powerpc/iommu: Remove the dependency on EEH struct in DDW mechanism
IB/mlx4: Properly initialize GRH TClass and FlowLabel in AHs
IB/cm: Fix a recently introduced locking bug
EDAC, sb_edac: Fix rank lookup on Broadwell
mac80211: Fix mesh estab_plinks counting in STA removal case
mac80211_hwsim: Add missing check for HWSIM_ATTR_SIGNAL
mac80211: mesh: flush mesh paths unconditionally
mac80211: fix fast_tx header alignment
Linux 4.4.15
usb: dwc3: exynos: Fix deferred probing storm.
usb: host: ehci-tegra: Grab the correct UTMI pads reset
usb: gadget: fix spinlock dead lock in gadgetfs
USB: mos7720: delete parport
xhci: Fix handling timeouted commands on hosts in weird states.
USB: xhci: Add broken streams quirk for Frescologic device id 1009
usb: xhci-plat: properly handle probe deferral for devm_clk_get()
xhci: Cleanup only when releasing primary hcd
usb: musb: host: correct cppi dma channel for isoch transfer
usb: musb: Ensure rx reinit occurs for shared_fifo endpoints
usb: musb: Stop bulk endpoint while queue is rotated
usb: musb: only restore devctl when session was set in backup
usb: quirks: Add no-lpm quirk for Acer C120 LED Projector
usb: quirks: Fix sorting
USB: uas: Fix slave queue_depth not being set
crypto: user - re-add size check for CRYPTO_MSG_GETALG
crypto: ux500 - memmove the right size
crypto: vmx - Increase priority of aes-cbc cipher
AX.25: Close socket connection on session completion
bpf: try harder on clones when writing into skb
net: alx: Work around the DMA RX overflow issue
net: macb: fix default configuration for GMAC on AT91
neigh: Explicitly declare RCU-bh read side critical section in neigh_xmit()
bpf, perf: delay release of BPF prog after grace period
sock_diag: do not broadcast raw socket destruction
Bridge: Fix ipv6 mc snooping if bridge has no ipv6 address
ipmr/ip6mr: Initialize the last assert time of mfc entries.
netem: fix a use after free
esp: Fix ESN generation under UDP encapsulation
sit: correct IP protocol used in ipip6_err
net: Don't forget pr_fmt on net_dbg_ratelimited for CONFIG_DYNAMIC_DEBUG
net_sched: fix pfifo_head_drop behavior vs backlog
sdcardfs: Truncate packages_gid.list on overflow
UPSTREAM: cdc_ncm: do not call usbnet_link_change from cdc_ncm_bind
BACKPORT: proc: add /proc/<pid>/timerslack_ns interface
BACKPORT: timer: convert timer_slack_ns from unsigned long to u64
netfilter: xt_quota2: make quota2_log work well
Revert "usb: gadget: prevent change of Host MAC address of 'usb0' interface"
BACKPORT: PM / sleep: Go direct_complete if driver has no callbacks
ANDROID: base-cfg: enable UID_CPUTIME
UPSTREAM: USB: usbfs: fix potential infoleak in devio
UPSTREAM: ALSA: timer: Fix leak in events via snd_timer_user_ccallback
UPSTREAM: ALSA: timer: Fix leak in events via snd_timer_user_tinterrupt
UPSTREAM: ALSA: timer: Fix leak in SNDRV_TIMER_IOCTL_PARAMS
ANDROID: configs: remove unused configs
ANDROID: cpu: send KOBJ_ONLINE event when enabling cpus
ANDROID: dm verity fec: initialize recursion level
ANDROID: dm verity fec: fix RS block calculation
Linux 4.4.14
netfilter: x_tables: introduce and use xt_copy_counters_from_user
netfilter: x_tables: do compat validation via translate_table
netfilter: x_tables: xt_compat_match_from_user doesn't need a retval
netfilter: ip6_tables: simplify translate_compat_table args
netfilter: ip_tables: simplify translate_compat_table args
netfilter: arp_tables: simplify translate_compat_table args
netfilter: x_tables: don't reject valid target size on some architectures
netfilter: x_tables: validate all offsets and sizes in a rule
netfilter: x_tables: check for bogus target offset
netfilter: x_tables: check standard target size too
netfilter: x_tables: add compat version of xt_check_entry_offsets
netfilter: x_tables: assert minimum target size
netfilter: x_tables: kill check_entry helper
netfilter: x_tables: add and use xt_check_entry_offsets
netfilter: x_tables: validate targets of jumps
netfilter: x_tables: don't move to non-existent next rule
drm/core: Do not preserve framebuffer on rmfb, v4.
crypto: qat - fix adf_ctl_drv.c:undefined reference to adf_init_pf_wq
netfilter: x_tables: fix unconditional helper
netfilter: x_tables: make sure e->next_offset covers remaining blob size
netfilter: x_tables: validate e->target_offset early
MIPS: Fix 64k page support for 32 bit kernels.
sparc64: Fix return from trap window fill crashes.
sparc: Harden signal return frame checks.
sparc64: Take ctx_alloc_lock properly in hugetlb_setup().
sparc64: Reduce TLB flushes during hugepte changes
sparc/PCI: Fix for panic while enabling SR-IOV
sparc64: Fix sparc64_set_context stack handling.
sparc64: Fix numa node distance initialization
sparc64: Fix bootup regressions on some Kconfig combinations.
sparc: Fix system call tracing register handling.
fix d_walk()/non-delayed __d_free() race
sched: panic on corrupted stack end
proc: prevent stacking filesystems on top
x86/entry/traps: Don't force in_interrupt() to return true in IST handlers
wext: Fix 32 bit iwpriv compatibility issue with 64 bit Kernel
ecryptfs: forbid opening files without mmap handler
memcg: add RCU locking around css_for_each_descendant_pre() in memcg_offline_kmem()
parisc: Fix pagefault crash in unaligned __get_user() call
pinctrl: mediatek: fix dual-edge code defect
powerpc/pseries: Add POWER8NVL support to ibm,client-architecture-support call
powerpc: Use privileged SPR number for MMCR2
powerpc: Fix definition of SIAR and SDAR registers
powerpc/pseries/eeh: Handle RTAS delay requests in configure_bridge
arm64: mm: always take dirty state from new pte in ptep_set_access_flags
arm64: Provide "model name" in /proc/cpuinfo for PER_LINUX32 tasks
crypto: ccp - Fix AES XTS error for request sizes above 4096
crypto: public_key: select CRYPTO_AKCIPHER
irqchip/gic-v3: Fix ICC_SGI1R_EL1.INTID decoding mask
s390/bpf: reduce maximum program size to 64 KB
s390/bpf: fix recache skb->data/hlen for skb_vlan_push/pop
gpio: bcm-kona: fix bcm_kona_gpio_reset() warnings
ARM: fix PTRACE_SETVFPREGS on SMP systems
ALSA: hda/realtek: Add T560 docking unit fixup
ALSA: hda/realtek - Add support for new codecs ALC700/ALC701/ALC703
ALSA: hda/realtek - ALC256 speaker noise issue
ALSA: hda - Fix headset mic detection problem for Dell machine
ALSA: hda - Add PCI ID for Kabylake
KVM: irqfd: fix NULL pointer dereference in kvm_irq_map_gsi
KVM: x86: fix OOPS after invalid KVM_SET_DEBUGREGS
vxlan, gre, geneve: Set a large MTU on ovs-created tunnel devices
geneve: Relax MTU constraints
vxlan: Relax MTU constraints
ipv6: Skip XFRM lookup if dst_entry in socket cache is valid
l2tp: fix configuration passed to setup_udp_tunnel_sock()
bridge: Don't insert unnecessary local fdb entry on changing mac address
tcp: record TLP and ER timer stats in v6 stats
vxlan: Accept user specified MTU value when create new vxlan link
team: don't call netdev_change_features under team->lock
sfc: on MC reset, clear PIO buffer linkage in TXQs
bpf, inode: disallow userns mounts
uapi glibc compat: fix compilation when !__USE_MISC in glibc
udp: prevent skbs lingering in tunnel socket queues
bpf: Use mount_nodev not mount_ns to mount the bpf filesystem
tuntap: correctly wake up process during uninit
switchdev: pass pointer to fib_info instead of copy
tipc: fix nametable publication field in nl compat
netlink: Fix dump skb leak/double free
tipc: check nl sock before parsing nested attributes
scsi: Add QEMU CD-ROM to VPD Inquiry Blacklist
scsi_lib: correctly retry failed zero length REQ_TYPE_FS commands
cs-etm: associating output packet with CPU they executed on
cs-etm: removing unecessary structure field
cs-etm: account for each trace buffer in the queue
cs-etm: avoid casting variable
perf tools: fixing Makefile problems
perf tools: new naming convention for openCSD
perf scripts: Add python scripts for CoreSight traces
perf tools: decoding capailitity for CoreSight traces
perf symbols: Check before overwriting build_id
perf tools: pushing driver configuration down to the kernel
perf tools: add infrastructure for PMU specific configuration
coresight: etm-perf: incorporating sink definition from the cmd line
coresight: adding sink parameter to function coresight_build_path()
perf: passing struct perf_event to function setup_aux()
perf/core: adding PMU driver specific configuration
perf tools: adding coresight etm PMU record capabilities
perf tools: making coresight PMU listable
coresight: tmc: implementing TMC-ETR AUX space API
coresight: Add support for Juno platform
coresight: Handle build path error
coresight: Fix erroneous memset in tmc_read_unprepare_etr
coresight: Fix tmc_read_unprepare_etr
coresight: Fix NULL pointer dereference in _coresight_build_path
ANDROID: dm verity fec: add missing release from fec_ktype
ANDROID: dm verity fec: limit error correction recursion
ANDROID: restrict access to perf events
FROMLIST: security,perf: Allow further restriction of perf_event_open
BACKPORT: perf tools: Document the perf sysctls
Revert "armv6 dcc tty driver"
Revert "arm: dcc_tty: fix armv6 dcc tty build failure"
ARM64: Ignore Image-dtb from git point of view
arm64: add option to build Image-dtb
ANDROID: usb: gadget: f_midi: set fi->f to NULL when free f_midi function
Linux 4.4.13
xfs: handle dquot buffer readahead in log recovery correctly
xfs: print name of verifier if it fails
xfs: skip stale inodes in xfs_iflush_cluster
xfs: fix inode validity check in xfs_iflush_cluster
xfs: xfs_iflush_cluster fails to abort on error
xfs: Don't wrap growfs AGFL indexes
xfs: disallow rw remount on fs with unknown ro-compat features
gcov: disable tree-loop-im to reduce stack usage
scripts/package/Makefile: rpmbuild add support of RPMOPTS
dma-debug: avoid spinlock recursion when disabling dma-debug
PM / sleep: Handle failures in device_suspend_late() consistently
ext4: silence UBSAN in ext4_mb_init()
ext4: address UBSAN warning in mb_find_order_for_block()
ext4: fix oops on corrupted filesystem
ext4: clean up error handling when orphan list is corrupted
ext4: fix hang when processing corrupted orphaned inode list
drm/imx: Match imx-ipuv3-crtc components using device node in platform data
drm/i915: Don't leave old junk in ilk active watermarks on readout
drm/atomic: Verify connector->funcs != NULL when clearing states
drm/fb_helper: Fix references to dev->mode_config.num_connector
drm/i915/fbdev: Fix num_connector references in intel_fb_initial_config()
drm/amdgpu: Fix hdmi deep color support.
drm/amdgpu: use drm_mode_vrefresh() rather than mode->vrefresh
drm/vmwgfx: Fix order of operation
drm/vmwgfx: use vmw_cmd_dx_cid_check for query commands.
drm/vmwgfx: Enable SVGA_3D_CMD_DX_SET_PREDICATION
drm/gma500: Fix possible out of bounds read
sunrpc: fix stripping of padded MIC tokens
xen: use same main loop for counting and remapping pages
xen/events: Don't move disabled irqs
powerpc/eeh: Restore initial state in eeh_pe_reset_and_recover()
Revert "powerpc/eeh: Fix crash in eeh_add_device_early() on Cell"
powerpc/eeh: Don't report error in eeh_pe_reset_and_recover()
powerpc/book3s64: Fix branching to OOL handlers in relocatable kernel
pipe: limit the per-user amount of pages allocated in pipes
QE-UART: add "fsl,t1040-ucc-uart" to of_device_id
wait/ptrace: assume __WALL if the child is traced
mm: use phys_addr_t for reserve_bootmem_region() arguments
media: v4l2-compat-ioctl32: fix missing reserved field copy in put_v4l2_create32
PCI: Disable all BAR sizing for devices with non-compliant BARs
pinctrl: exynos5440: Use off-stack memory for pinctrl_gpio_range
clk: bcm2835: divider value has to be 1 or more
clk: bcm2835: pll_off should only update CM_PLL_ANARST
clk: at91: fix check of clk_register() returned value
clk: bcm2835: Fix PLL poweron
cpuidle: Fix cpuidle_state_is_coupled() argument in cpuidle_enter()
cpuidle: Indicate when a device has been unregistered
PM / Runtime: Fix error path in pm_runtime_force_resume()
mfd: intel_soc_pmic_core: Terminate panel control GPIO lookup table correctly
mfd: intel-lpss: Save register context on suspend
hwmon: (ads7828) Enable internal reference
aacraid: Fix for KDUMP driver hang
aacraid: Fix for aac_command_thread hang
aacraid: Relinquish CPU during timeout wait
rtlwifi: pci: use dev_kfree_skb_irq instead of kfree_skb in rtl_pci_reset_trx_ring
rtlwifi: Fix logic error in enter/exit power-save mode
rtlwifi: btcoexist: Implement antenna selection
rtlwifi: rtl8723be: Add antenna select module parameter
hwrng: exynos - Fix unbalanced PM runtime put on timeout error path
ath5k: Change led pin configuration for compaq c700 laptop
ath10k: fix kernel panic, move arvifs list head init before htt init
ath10k: fix rx_channel during hw reconfigure
ath10k: fix firmware assert in monitor mode
ath10k: fix debugfs pktlog_filter write
ath9k: Fix LED polarity for some Mini PCI AR9220 MB92 cards.
ath9k: Add a module parameter to invert LED polarity.
ARM: dts: imx35: restore existing used clock enumeration
ARM: dts: exynos: Add interrupt line to MAX8997 PMIC on exynos4210-trats
ARM: dts: at91: fix typo in sama5d2 PIN_PD24 description
ARM: mvebu: fix GPIO config on the Linksys boards
Input: uinput - handle compat ioctl for UI_SET_PHYS
ASoC: ak4642: Enable cache usage to fix crashes on resume
affs: fix remount failure when there are no options changed
MIPS: VDSO: Build with `-fno-strict-aliasing'
MIPS: lib: Mark intrinsics notrace
MIPS: Build microMIPS VDSO for microMIPS kernels
MIPS: Fix sigreturn via VDSO on microMIPS kernel
MIPS: ptrace: Prevent writes to read-only FCSR bits
MIPS: ptrace: Fix FP context restoration FCSR regression
MIPS: Disable preemption during prctl(PR_SET_FP_MODE, ...)
MIPS: Prevent "restoration" of MSA context in non-MSA kernels
MIPS: Fix MSA ld_*/st_* asm macros to use PTR_ADDU
MIPS: Use copy_s.fmt rather than copy_u.fmt
MIPS: Loongson-3: Reserve 32MB for RS780E integrated GPU
MIPS: Reserve nosave data for hibernation
MIPS: ath79: make bootconsole wait for both THRE and TEMT
MIPS: Sync icache & dcache in set_pte_at
MIPS: Handle highmem pages in __update_cache
MIPS: Flush highmem pages in __flush_dcache_page
MIPS: Fix watchpoint restoration
MIPS: Fix uapi include in exported asm/siginfo.h
MIPS: Fix siginfo.h to use strict posix types
MIPS: Avoid using unwind_stack() with usermode
MIPS: Don't unwind to user mode with EVA
MIPS: MSA: Fix a link error on `_init_msa_upper' with older GCC
MIPS: math-emu: Fix jalr emulation when rd == $0
MIPS64: R6: R2 emulation bugfix
coresight: etb10: adjust read pointer only when needed
coresight: configuring ETF in FIFO mode when acting as link
coresight: tmc: implementing TMC-ETF AUX space API
coresight: moving struct cs_buffers to header file
coresight: tmc: keep track of memory width
coresight: tmc: make sysFS and Perf mode mutually exclusive
coresight: tmc: dump system memory content only when needed
coresight: tmc: adding mode of operation for link/sinks
coresight: tmc: getting rid of multiple read access
coresight: tmc: allocating memory when needed
coresight: tmc: making prepare/unprepare functions generic
coresight: tmc: splitting driver in ETB/ETF and ETR components
coresight: tmc: cleaning up header file
coresight: tmc: introducing new header file
coresight: tmc: clearly define number of transfers per burst
coresight: tmc: re-implementing tmc_read_prepare/unprepare() functions
coresight: tmc: waiting for TMCReady bit before programming
coresight: tmc: modifying naming convention
coresight: tmc: adding sysFS management entries
coresight: etm4x: add tracer ID for A72 Maia processor.
coresight: etb10: fixing the right amount of words to read
coresight: stm: adding driver for CoreSight STM component
coresight: adding path for STM device
coresight: etm4x: modify q_support type
coresight: no need to do the forced type conversion
coresight: removing gratuitous boot time log messages
coresight: etb10: splitting sysFS "status" entry
coresight: moving coresight_simple_func() to header file
coresight: etm4x: implementing the perf PMU API
coresight: etm4x: implementing user/kernel mode tracing
coresight: etm4x: moving etm_drvdata::enable to atomic field
coresight: etm4x: unlocking tracers in default arch init
coresight: etm4x: splitting etmv4 default configuration
coresight: etm4x: splitting struct etmv4_drvdata
coresight: etm4x: adding config and traceid registers
coresight: etm4x: moving sysFS entries to a dedicated file
stm class: Support devices that override software assigned masters
stm class: Remove unnecessary pointer increment
stm class: Fix stm device initialization order
stm class: Do not leak the chrdev in error path
stm class: Remove a pointless line
stm class: stm_heartbeat: Make nr_devs parameter read-only
stm class: dummy_stm: Make nr_dummies parameter read-only
MAINTAINERS: Add a git tree for the stm class
perf/ring_buffer: Document AUX API usage
perf/core: Free AUX pages in unmap path
perf/ring_buffer: Refuse to begin AUX transaction after rb->aux_mmap_count drops
perf auxtrace: Add perf_evlist pointer to *info_priv_size()
perf session: Simplify tool stubs
perf inject: Hit all DSOs for AUX data in JIT and other cases
perf tools: tracepoint_error() can receive e=NULL, robustify it
perf evlist: Make perf_evlist__open() open evsels with their cpus and threads (like perf record does)
perf evsel: Introduce disable() method
perf cpumap: Auto initialize cpu__max_{node,cpu}
drivers/hwtracing: make coresight-etm-perf.c explicitly non-modular
drivers/hwtracing: make coresight-* explicitly non-modular
coresight: introducing a global trace ID function
coresight: etm-perf: new PMU driver for ETM tracers
coresight: etb10: implementing AUX API
coresight: etb10: adding operation mode for sink->enable()
coresight: etb10: moving to local atomic operations
coresight: etm3x: implementing perf_enable/disable() API
coresight: etm3x: implementing user/kernel mode tracing
coresight: etm3x: consolidating initial config
coresight: etm3x: changing default trace configuration
coresight: etm3x: set progbit to stop trace collection
coresight: etm3x: adding operation mode for etm_enable()
coresight: etm3x: splitting struct etm_drvdata
coresight: etm3x: unlocking tracers in default arch init
coresight: etm3x: moving sysFS entries to dedicated file
coresight: etm3x: moving etm_readl/writel to header file
coresight: moving PM runtime operations to core framework
coresight: add API to get sink from path
coresight: associating path with session rather than tracer
coresight: etm4x: Check every parameter used by dma_xx_coherent.
coresight: "DEVICE_ATTR_RO" should defined as static.
coresight: implementing 'cpu_id()' API
coresight: removing bind/unbind options from sysfs
coresight: remove csdev's link from topology
coresight: release reference taken by 'bus_find_device()'
coresight: coresight_unregister() function cleanup
coresight: fixing lockdep error
coresight: fixing indentation problem
coresight: Fix a typo in Kconfig
coresight: checking for NULL string in coresight_name_match()
perf/core: Disable the event on a truncated AUX record
perf/core: Don't leak event in the syscall error path
perf/core: Fix perf_sched_count derailment
stm class: dummy_stm: Add link callback for fault injection
stm class: Plug stm device's unlink callback
stm class: Fix a race in unlinking
stm class: Fix unbalanced module/device refcounting
stm class: Guard output assignment against concurrency
stm class: Fix unlocking braino in the error path
stm class: Add heartbeat stm source device
stm class: dummy_stm: Create multiple devices
stm class: Support devices with multiple instances
stm class: Use driver's packet callback return value
stm class: Prevent user-controllable allocations
stm class: Fix link list locking
stm class: Fix locking in unbinding policy path
stm class: Select CONFIG_SRCU
stm class: Hide STM-specific options if STM is disabled
perf: Synchronously free aux pages in case of allocation failure
Linux 4.4.12
kbuild: move -Wunused-const-variable to W=1 warning level
Revert "scsi: fix soft lockup in scsi_remove_target() on module removal"
scsi: Add intermediate STARGET_REMOVE state to scsi_target_state
hpfs: implement the show_options method
hpfs: fix remount failure when there are no options changed
UBI: Fix static volume checks when Fastmap is used
SIGNAL: Move generic copy_siginfo() to signal.h
thunderbolt: Fix double free of drom buffer
IB/srp: Fix a debug kernel crash
ALSA: hda - Fix headset mic detection problem for one Dell machine
ALSA: hda/realtek - Add support for ALC295/ALC3254
ALSA: hda - Fix headphone noise on Dell XPS 13 9360
ALSA: hda/realtek - New codecs support for ALC234/ALC274/ALC294
mcb: Fixed bar number assignment for the gdd
clk: bcm2835: add locking to pll*_on/off methods
locking,qspinlock: Fix spin_is_locked() and spin_unlock_wait()
serial: samsung: Reorder the sequence of clock control when call s3c24xx_serial_set_termios()
serial: 8250_mid: recognize interrupt source in handler
serial: 8250_mid: use proper bar for DNV platform
serial: 8250_pci: fix divide error bug if baud rate is 0
Fix OpenSSH pty regression on close
tty/serial: atmel: fix hardware handshake selection
TTY: n_gsm, fix false positive WARN_ON
tty: vt, return error when con_startup fails
xen/x86: actually allocate legacy interrupts on PV guests
KVM: x86: mask CPUID(0xD,0x1).EAX against host value
MIPS: KVM: Fix timer IRQ race when writing CP0_Compare
MIPS: KVM: Fix timer IRQ race when freezing timer
KVM: x86: fix ordering of cr0 initialization code in vmx_cpu_reset
KVM: MTRR: remove MSR 0x2f8
staging: comedi: das1800: fix possible NULL dereference
usb: gadget: udc: core: Fix argument of dev_err() in usb_gadget_map_request()
USB: leave LPM alone if possible when binding/unbinding interface drivers
usb: misc: usbtest: fix pattern tests for scatterlists.
usb: f_mass_storage: test whether thread is running before starting another
usb: gadget: f_fs: Fix EFAULT generation for async read operations
USB: serial: option: add even more ZTE device ids
USB: serial: option: add more ZTE device ids
USB: serial: option: add support for Cinterion PH8 and AHxx
USB: serial: io_edgeport: fix memory leaks in probe error path
USB: serial: io_edgeport: fix memory leaks in attach error path
USB: serial: quatech2: fix use-after-free in probe error path
USB: serial: keyspan: fix use-after-free in probe error path
USB: serial: mxuport: fix use-after-free in probe error path
mei: bus: call mei_cl_read_start under device lock
mei: amthif: discard not read messages
mei: fix NULL dereferencing during FW initiated disconnection
Bluetooth: vhci: Fix race at creating hci device
Bluetooth: vhci: purge unhandled skbs
Bluetooth: vhci: fix open_timeout vs. hdev race
mmc: sdhci-pci: Remove MMC_CAP_BUS_WIDTH_TEST for Intel controllers
mmc: longer timeout for long read time quirk
dell-rbtn: Ignore ACPI notifications if device is suspended
ACPI / osi: Fix an issue that acpi_osi=!* cannot disable ACPICA internal strings
mmc: sdhci-acpi: Remove MMC_CAP_BUS_WIDTH_TEST for Intel controllers
mmc: mmc: Fix partition switch timeout for some eMMCs
can: fix handling of unmodifiable configuration options
irqchip/gic-v3: Configure all interrupts as non-secure Group-1
irqchip/gic: Ensure ordering between read of INTACK and shared data
Input: pwm-beeper - fix - scheduling while atomic
mfd: omap-usb-tll: Fix scheduling while atomic BUG
sched/loadavg: Fix loadavg artifacts on fully idle and on fully loaded systems
clk: qcom: msm8916: Fix crypto clock flags
crypto: sun4i-ss - Replace spinlock_bh by spin_lock_irq{save|restore}
crypto: talitos - fix ahash algorithms registration
crypto: caam - fix caam_jr_alloc() ret code
ring-buffer: Prevent overflow of size in ring_buffer_resize()
ring-buffer: Use long for nr_pages to avoid overflow failures
asix: Fix offset calculation in asix_rx_fixup() causing slow transmissions
fs/cifs: correctly to anonymous authentication for the NTLM(v2) authentication
fs/cifs: correctly to anonymous authentication for the NTLM(v1) authentication
fs/cifs: correctly to anonymous authentication for the LANMAN authentication
fs/cifs: correctly to anonymous authentication via NTLMSSP
remove directory incorrectly tries to set delete on close on non-empty directories
kvm: arm64: Fix EC field in inject_abt64
arm/arm64: KVM: Enforce Break-Before-Make on Stage-2 page tables
arm64: cpuinfo: Missing NULL terminator in compat_hwcap_str
arm64: Implement pmdp_set_access_flags() for hardware AF/DBM
arm64: Implement ptep_set_access_flags() for hardware AF/DBM
arm64: Ensure pmd_present() returns false after pmd_mknotpresent()
arm64: Fix typo in the pmdp_huge_get_and_clear() definition
ext4: iterate over buffer heads correctly in move_extent_per_page()
perf test: Fix build of BPF and LLVM on older glibc libraries
perf/core: Fix perf_event_open() vs. execve() race
perf/x86/intel/pt: Generate PMI in the STOP region as well
Btrfs: don't use src fd for printk
UPSTREAM: mac80211: fix "warning: ‘target_metric’ may be used uninitialized"
Revert "drivers: power: use 'current' instead of 'get_current()'"
cpufreq: interactive: drop cpufreq_{get,put}_global_kobject func calls
Revert "cpufreq: interactive: build fixes for 4.4"
xt_qtaguid: Fix panic caused by processing non-full socket.
fiq_debugger: Add fiq_debugger.disable option
UPSTREAM: procfs: fixes pthread cross-thread naming if !PR_DUMPABLE
FROMLIST: wlcore: Disable filtering in AP role
Revert "drivers: power: Add watchdog timer to catch drivers which lockup during suspend."
fiq_debugger: Add option to apply uart overlay by FIQ_DEBUGGER_UART_OVERLAY
Revert "Recreate asm/mach/mmc.h include file"
Revert "ARM: Add 'card_present' state to mmc_platfrom_data"
usb: dual-role: make stub functions inline
Revert "mmc: Add status IRQ and status callback function to mmc platform data"
quick selinux support for tracefs
Revert "hid-multitouch: Filter collections by application usage."
Revert "HID: steelseries: validate output report details"
xt_qtaguid: Fix panic caused by synack processing
Revert "mm: vmscan: Add a debug file for shrinkers"
Revert "SELinux: Enable setting security contexts on rootfs inodes."
Revert "SELinux: build fix for 4.1"
fuse: Add support for d_canonical_path
vfs: change d_canonical_path to take two paths
android: recommended.cfg: remove CONFIG_UID_STAT
netfilter: xt_qtaguid: seq_printf fixes
Revert "misc: uidstat: Adding uid stat driver to collect network statistics."
Revert "net: activity_stats: Add statistics for network transmission activity"
Revert "net: activity_stats: Stop using obsolete create_proc_read_entry api"
Revert "misc: uidstat: avoid create_stat() race and blockage."
Revert "misc: uidstat: Remove use of obsolete create_proc_read_entry api"
Revert "misc seq_printf fixes for 4.4"
Revert "misc: uid_stat: Include linux/atomic.h instead of asm/atomic.h"
Revert "net: socket ioctl to reset connections matching local address"
Revert "net: fix iterating over hashtable in tcp_nuke_addr()"
Revert "net: fix crash in tcp_nuke_addr()"
Revert "Don't kill IPv4 sockets when killing IPv6 sockets was requested."
Revert "tcp: Fix IPV6 module build errors"
android: base-cfg: remove CONFIG_SWITCH
Revert "switch: switch class and GPIO drivers."
Revert "drivers: switch: remove S_IWUSR from dev_attr"
ANDROID: base-cfg: enable CONFIG_IP_NF_NAT
BACKPORT: selinux: restrict kernel module loading
android: base-cfg: enable CONFIG_QUOTA
Conflicts:
Documentation/sysctl/kernel.txt
drivers/cpufreq/cpufreq_interactive.c
drivers/hwtracing/coresight/Kconfig
drivers/hwtracing/coresight/Makefile
drivers/hwtracing/coresight/coresight-etm4x.c
drivers/hwtracing/coresight/coresight-etm4x.h
drivers/hwtracing/coresight/coresight-priv.h
drivers/hwtracing/coresight/coresight-stm.c
drivers/hwtracing/coresight/coresight-tmc.c
drivers/mmc/core/core.c
include/linux/coresight-stm.h
include/linux/coresight.h
include/linux/msm_mdp.h
include/uapi/linux/coresight-stm.h
kernel/events/core.c
kernel/sched/fair.c
net/Makefile
net/ipv4/netfilter/arp_tables.c
net/ipv4/netfilter/ip_tables.c
net/ipv4/tcp.c
net/ipv6/netfilter/ip6_tables.c
net/netfilter/xt_quota2.c
sound/core/pcm.c
Change-Id: I17aa0002815014e9bddc47e67769a53c15768a99
Signed-off-by: Runmin Wang <runminw@codeaurora.org>
* msm-4.4/tmp-2bf7955:
Linux 4.4.8
Revert "usb: hub: do not clear BOS field during reset device"
usbvision: fix crash on detecting device with invalid configuration
staging: android: ion: Set the length of the DMA sg entries in buffer
Revert "PCI, x86: Implement pcibios_alloc_irq() and pcibios_free_irq()"
Revert "PCI: Add helpers to manage pci_dev->irq and pci_dev->irq_managed"
Revert "x86/PCI: Don't alloc pcibios-irq when MSI is enabled"
HID: usbhid: fix inconsistent reset/resume/reset-resume behavior
HID: wacom: fix Bamboo ONE oops
ALSA: usb-audio: Skip volume controls triggers hangup on Dell USB Dock
ALSA: usb-audio: Add a quirk for Plantronics BT300
ALSA: usb-audio: Add a sample rate quirk for Phoenix Audio TMX320
ALSA: hda/realtek - Enable the ALC292 dock fixup on the Thinkpad T460s
ALSA: hda - fix front mic problem for a HP desktop
ALSA: hda - Fix headset support and noise on HP EliteBook 755 G2
ALSA: hda - Fixup speaker pass-through control for nid 0x14 on ALC225
mmc: sdhci-pci: Add support and PCI IDs for more Broxton host controllers
perf: Cure event->pending_disable race
perf: Do not double free
arm64: replace read_lock to rcu lock in call_step_hook
Btrfs: fix file/data loss caused by fsync after rename and new inode
iommu: Don't overwrite domain pointer when there is no default_domain
ext4: ignore quota mount options if the quota feature is enabled
ext4: add lockdep annotations for i_data_sem
btrfs: fix crash/invalid memory access on fsync when using overlayfs
nfs: use file_dentry()
fs: add file_dentry()
sd: Fix excessive capacity printing on devices with blocks bigger than 512 bytes
iio: gyro: bmg160: fix endianness when reading axes
iio: gyro: bmg160: fix buffer read values
iio: accel: bmc150: fix endianness when reading axes
iio: st_magn: always define ST_MAGN_TRIGGER_SET_STATE
usb: renesas_usbhs: fix to avoid using a disabled ep in usbhsg_queue_done()
usb: renesas_usbhs: disable TX IRQ before starting TX DMAC transfer
usb: renesas_usbhs: avoid NULL pointer derefernce in usbhsf_pkt_handler()
mac80211: fix txq queue related crashes
mac80211: fix unnecessary frame drops in mesh fwding
mac80211: fix ibss scan parameters
mac80211: avoid excessive stack usage in sta_info
mac80211: properly deal with station hashtable insert errors
virtio: virtio 1.0 cs04 spec compliance for reset
rbd: use GFP_NOIO consistently for request allocations
pcmcia: db1xxx_ss: fix last irq_to_gpio user
v4l: vsp1: Set the SRU CTRL0 register when starting the stream
coda: fix error path in case of missing pdata on non-DT platform
au0828: Fix dev_state handling
au0828: fix au0828_v4l2_close() dev_state race condition
pinctrl: freescale: imx: fix bogus check of of_iomap() return value
pinctrl: nomadik: fix pull debug print inversion
pinctrl: sunxi: Fix A33 external interrupts not working
pinctrl: sh-pfc: only use dummy states for non-DT platforms
pinctrl: pistachio: fix mfio84-89 function description and pinmux.
MIPS: Fix MSA ld unaligned failure cases
KVM: x86: reduce default value of halt_poll_ns parameter
KVM: x86: Inject pending interrupt even if pending nmi exist
cdc-acm: fix NULL pointer reference
USB: uas: Add a new NO_REPORT_LUNS quirk
USB: uas: Limit qdepth at the scsi-host level
mpls: find_outdev: check for err ptr in addition to NULL check
ipv6: Count in extension headers in skb->network_header
ip6_tunnel: set rtnl_link_ops before calling register_netdevice
ipv6: l2tp: fix a potential issue in l2tp_ip6_recv
ipv4: l2tp: fix a potential issue in l2tp_ip_recv
tuntap: restore default qdisc
tun, bpf: fix suspicious RCU usage in tun_{attach, detach}_filter
rtnl: fix msg size calculation in if_nlmsg_size()
bridge: Allow set bridge ageing time when switchdev disabled
ipv6: udp: fix UDP_MIB_IGNOREDMULTI updates
qmi_wwan: add "D-Link DWM-221 B1" device id
xfrm: Fix crash observed during device unregistration and decryption
ppp: take reference on channels netns
ipv4: initialize flowi4_flags before calling fib_lookup()
ipv4: fix broadcast packets reception
bonding: fix bond_get_stats()
net: bcmgenet: fix dma api length mismatch
qlge: Fix receive packets drop.
tcp/dccp: remove obsolete WARN_ON() in icmp handlers
ppp: ensure file->private_data can't be overridden
ath9k: fix buffer overrun for ar9287
farsync: fix off-by-one bug in fst_add_one
mlx4: add missing braces in verify_qp_parameters
net: Fix use after free in the recvmmsg exit path
ipv4: Don't do expensive useless work during inetdev destroy.
bridge: allow zero ageing time
rocker: set FDB cleanup timer according to lowest ageing time
mlxsw: spectrum: Check requested ageing time is valid
macvtap: always pass ethernet header in linear
qlcnic: Fix mailbox completion handling during spurious interrupt
qlcnic: Remove unnecessary usage of atomic_t
sh_eth: advance 'rxdesc' later in sh_eth_ring_format()
sh_eth: fix NULL pointer dereference in sh_eth_ring_format()
bpf: avoid copying junk bytes in bpf_get_current_comm()
packet: validate variable length ll headers
ax25: add link layer header validation function
net: validate variable length ll headers
ppp: release rtnl mutex when interface creation fails
tcp: fix tcpi_segs_in after connection establishment
udp6: fix UDP/IPv6 encap resubmit path
usbnet: cleanup after bind() in probe()
cdc_ncm: toggle altsetting to force reset before setup
vxlan: fix missing options_len update on RX with collect metadata
ipv6: re-enable fragment header matching in ipv6_find_hdr
qmi_wwan: add Sierra Wireless EM74xx device ID
tipc: Revert "tipc: use existing sk_write_queue for outgoing packet chain"
mld, igmp: Fix reserved tailroom calculation
sctp: lack the check for ports in sctp_v6_cmp_addr
net: fix bridge multicast packet checksum validation
net: qca_spi: clear IFF_TX_SKB_SHARING
net: qca_spi: Don't clear IFF_BROADCAST
net: vrf: Remove direct access to skb->data
net: jme: fix suspend/resume on JMC260
ipv4: only create late gso-skb if skb is already set up with CHECKSUM_PARTIAL
tunnel: Clear IPCB(skb)->opt before dst_link_failure called
tcp: convert cached rtt from usec to jiffies when feeding initial rto
xen/events: Mask a moving irq
drm/amdgpu/gmc: use proper register for vram type on Fiji
drm/amdgpu/gmc: move vram type fetching into sw_init
drm/radeon: add a dpm quirk for all R7 370 parts
drm/radeon: add another R7 370 quirk
drm/radeon: add a dpm quirk for sapphire Dual-X R7 370 2G D5
drm/udl: Use unlocked gem unreferencing
drm/dp: move hw_mutex up the call stack
arm64: opcodes.h: Add arm big-endian config options before including arm header
compiler-gcc: disable -ftracer for __noclone functions
libnvdimm, pfn: fix uuid validation
libnvdimm: fix smart data retrieval
powerpc/mm: Fixup preempt underflow with huge pages
mm: fix invalid node in alloc_migrate_target()
ALSA: hda - Apply fix for white noise on Asus N550JV, too
ALSA: hda - Fix white noise on Asus N750JV headphone
ALSA: hda - Asus N750JV external subwoofer fixup
ALSA: timer: Use mod_timer() for rearming the system timer
parisc: Unbreak handling exceptions from kernel modules
parisc: Fix kernel crash with reversed copy_from_user()
parisc: Avoid function pointers for kernel exception routines
PKCS#7: pkcs7_validate_trust(): initialize the _trusted output argument
hwmon: (max1111) Return -ENODEV from max1111_read_channel if not instantiated
Linux 4.4.7
perf/x86/intel: Fix PEBS data source interpretation on Nehalem/Westmere
perf/x86/intel: Use PAGE_SIZE for PEBS buffer size on Core2
perf/x86/intel: Fix PEBS warning by only restoring active PMU in pmi
perf/x86/pebs: Add workaround for broken OVFL status on HSW+
sched/cputime: Fix steal time accounting vs. CPU hotplug
scsi_common: do not clobber fixed sense information
PM / sleep: Clear pm_suspend_global_flags upon hibernate
intel_idle: prevent SKL-H boot failure when C8+C9+C10 enabled
mtd: onenand: fix deadlock in onenand_block_markbad
mm/page_alloc: prevent merging between isolated and other pageblocks
ocfs2/dlm: fix BUG in dlm_move_lockres_to_recovery_list
ocfs2/dlm: fix race between convert and recovery
Input: ati_remote2 - fix crashes on detecting device with invalid descriptor
Input: ims-pcu - sanity check against missing interfaces
Input: synaptics - handle spurious release of trackstick buttons, again
writeback, cgroup: fix use of the wrong bdi_writeback which mismatches the inode
writeback, cgroup: fix premature wb_put() in locked_inode_to_wb_and_lock_list()
ACPI / PM: Runtime resume devices when waking from hibernate
ARM: dts: at91: sama5d4 Xplained: don't disable hsmci regulator
ARM: dts: at91: sama5d3 Xplained: don't disable hsmci regulator
nfsd: fix deadlock secinfo+readdir compound
nfsd4: fix bad bounds checking
iser-target: Rework connection termination
iser-target: Separate flows for np listeners and connections cma events
iser-target: Add new state ISER_CONN_BOUND to isert_conn
iser-target: Fix identification of login rx descriptor type
target: Fix target_release_cmd_kref shutdown comp leak
clk: bcm2835: Fix setting of PLL divider clock rates
clk: rockchip: add hclk_cpubus to the list of rk3188 critical clocks
clk: rockchip: rk3368: fix hdmi_cec gate-register
clk: rockchip: rk3368: fix parents of video encoder/decoder
clk: rockchip: rk3368: fix cpuclk core dividers
clk: rockchip: rk3368: fix cpuclk mux bit of big cpu-cluster
mmc: sdhci: Fix override of timeout clk wrt max_busy_timeout
mmc: sdhci: fix data timeout (part 2)
mmc: sdhci: fix data timeout (part 1)
mmc: mmc_spi: Add Card Detect comments and fix CD GPIO case
mmc: block: fix ABI regression of mmc_blk_ioctl
ideapad-laptop: Add ideapad Y700 (15) to the no_hw_rfkill DMI list
MAINTAINERS: Update mailing list and web page for hwmon subsystem
kbuild/mkspec: fix grub2 installkernel issue
scripts/kconfig: allow building with make 3.80 again
scripts/coccinelle: modernize &
bitops: Do not default to __clear_bit() for __clear_bit_unlock()
tracing: Fix trace_printk() to print when not using bprintk()
tracing: Fix crash from reading trace_pipe with sendfile
tracing: Have preempt(irqs)off trace preempt disabled functions
IB/ipoib: fix for rare multicast join race condition
drm/amdgpu: include the right version of gmc header files for iceland
drm/amdgpu: disable runtime pm on PX laptops without dGPU power control
drm/radeon: Don't drop DP 2.7 Ghz link setup on some cards.
drm/radeon: disable runtime pm on PX laptops without dGPU power control
iwlwifi: mvm: Fix paging memory leak
ipr: Fix regression when loading firmware
ipr: Fix out-of-bounds null overwrite
rapidio/rionet: fix deadlock on SMP
fs/coredump: prevent fsuid=0 dumps into user-controlled directories
fuse: Add reference counting for fuse_io_priv
fuse: do not use iocb after it may have been freed
md: multipath: don't hardcopy bio in .make_request path
md/raid5: preserve STRIPE_PREREAD_ACTIVE in break_stripe_batch_list
raid10: include bio_end_io_list in nr_queued to prevent freeze_array hang
RAID5: revert e9e4c377e2 to fix a livelock
RAID5: check_reshape() shouldn't call mddev_suspend
md/raid5: Compare apples to apples (or sectors to sectors)
raid1: include bio_end_io_list in nr_queued to prevent freeze_array hang
xfs: fix two memory leaks in xfs_attr_list.c error paths
quota: Fix possible GPF due to uninitialised pointers
ARC: bitops: Remove non relevant comments
ARC: [BE] readl()/writel() to work in Big Endian CPU configuration
xtensa: clear all DBREAKC registers on start
xtensa: fix preemption in {clear,copy}_user_highpage
xtensa: ISS: don't hang if stdin EOF is reached
splice: handle zero nr_pages in splice_to_pipe()
vfs: show_vfsstat: do not ignore errors from show_devname method
of: alloc anywhere from memblock if range not specified
net: mvneta: enable change MAC address when interface is up
cgroup: ignore css_sets associated with dead cgroups during migration
Bluetooth: Fix potential buffer overflow with Add Advertising
Bluetooth: Add new AR3012 ID 0489:e095
watchdog: rc32434_wdt: fix ioctl error handling
watchdog: don't run proc_watchdog_update if new value is same as old
ia64: define ioremap_uc()
mm: memcontrol: reclaim and OOM kill when shrinking memory.max below usage
mm: memcontrol: reclaim when shrinking memory.high below usage
bcache: fix cache_set_flush() NULL pointer dereference on OOM
bcache: fix race of writeback thread starting before complete initialization
bcache: cleaned up error handling around register_cache()
IB/srpt: Simplify srpt_handle_tsk_mgmt()
brd: Fix discard request processing
jbd2: fix FS corruption possibility in jbd2_journal_destroy() on umount path
tools/hv: Use include/uapi with __EXPORTED_HEADERS__
ALSA: hda - Fix unconditional GPIO toggle via automute
ALSA: hda - fix the mic mute button and led problem for a Lenovo AIO
ALSA: hda - Don't handle ELD notify from invalid port
ALSA: intel8x0: Add clock quirk entry for AD1981B on IBM ThinkPad X41.
ALSA: pcm: Avoid "BUG:" string for warnings again
ALSA: hda - Apply reboot D3 fix for CX20724 codec, too
mtip32xx: Cleanup queued requests after surprise removal
mtip32xx: Implement timeout handler
mtip32xx: Handle FTL rebuild failure state during device initialization
mtip32xx: Handle safe removal during IO
mtip32xx: Fix for rmmod crash when drive is in FTL rebuild
mtip32xx: Print exact time when an internal command is interrupted
mtip32xx: Remove unwanted code from taskfile error handler
mtip32xx: Fix broken service thread handling
mtip32xx: Avoid issuing standby immediate cmd during FTL rebuild
media: v4l2-compat-ioctl32: fix missing length copy in put_v4l2_buffer32
coda: fix first encoded frame payload
bttv: Width must be a multiple of 16 when capturing planar formats
adv7511: TX_EDID_PRESENT is still 1 after a disconnect
saa7134: Fix bytesperline not being set correctly for planar formats
8250: use callbacks to access UART_DLL/UART_DLM
net: irda: Fix use-after-free in irtty_open()
tty: Fix GPF in flush_to_ldisc(), part 2
staging: comedi: ni_mio_common: fix the ni_write[blw]() functions
staging: android: ion_test: fix check of platform_device_register_simple() error code
staging: comedi: ni_tiocmd: change mistaken use of start_src for start_arg
HID: fix hid_ignore_special_drivers module parameter
HID: multitouch: force retrieving of Win8 signature blob
HID: i2c-hid: fix OOB write in i2c_hid_set_or_send_report()
HID: logitech: fix Dual Action gamepad support
tpm: fix the cleanup of struct tpm_chip
tpm_eventlog.c: fix binary_bios_measurements
tpm_crb: tpm2_shutdown() must be called before tpm_chip_unregister()
tpm: fix the rollback in tpm_chip_register()
mei: bus: check if the device is enabled before data transfer
X.509: Fix leap year handling again
crypto: marvell/cesa - forward devm_ioremap_resource() error code
crypto: ux500 - fix checks of error code returned by devm_ioremap_resource()
crypto: atmel - fix checks of error code returned by devm_ioremap_resource()
crypto: keywrap - memzero the correct memory
crypto: ccp - memset request context to zero during import
crypto: ccp - Don't assume export/import areas are aligned
crypto: ccp - Limit the amount of information exported
crypto: ccp - Add hash state import and export support
Bluetooth: btusb: Add a new AR3012 ID 13d3:3472
Bluetooth: btusb: Add a new AR3012 ID 04ca:3014
Bluetooth: btusb: Add new AR3012 ID 13d3:3395
ALSA: usb-audio: Fix double-free in error paths after snd_usb_add_audio_stream() call
ALSA: usb-audio: Minor code cleanup in create_fixed_stream_quirk()
ALSA: usb-audio: add Microsoft HD-5001 to quirks
ALSA: usb-audio: Add sanity checks for endpoint accesses
ALSA: usb-audio: Fix NULL dereference in create_fixed_stream_quirk()
Input: powermate - fix oops with malicious USB descriptors
pwc: Add USB id for Philips Spc880nc webcam
USB: option: add "D-Link DWM-221 B1" device id
USB: serial: ftdi_sio: Add support for ICP DAS I-756xU devices
USB: serial: cp210x: Adding GE Healthcare Device ID
USB: cypress_m8: add endpoint sanity check
USB: digi_acceleport: do sanity checking for the number of ports
USB: mct_u232: add sanity checking in probe
USB: usb_driver_claim_interface: add sanity checking
USB: iowarrior: fix oops with malicious USB descriptors
USB: cdc-acm: more sanity checking
USB: uas: Reduce can_queue to MAX_CMNDS
usb: hub: fix a typo in hub_port_init() leading to wrong logic
usb: retry reset if a device times out
dm: fix rq_end_stats() NULL pointer in dm_requeue_original_request()
dm cache: make sure every metadata function checks fail_io
dm thin metadata: don't issue prefetches if a transaction abort has failed
dm: fix excessive dm-mq context switching
dm snapshot: disallow the COW and origin devices from being identical
libnvdimm: Fix security issue with DSM IOCTL.
aic7xxx: Fix queue depth handling
be2iscsi: set the boot_kset pointer to NULL in case of failure
scsi: storvsc: fix SRB_STATUS_ABORTED handling
sd: Fix discard granularity when LBPRZ=1
aacraid: Set correct msix count for EEH recovery
aacraid: Fix memory leak in aac_fib_map_free
aacraid: Fix RRQ overload
sg: fix dxferp in from_to case
x86/mm: TLB_REMOTE_SEND_IPI should count pages
x86/iopl: Fix iopl capability check on Xen PV
x86/iopl/64: Properly context-switch IOPL on Xen PV
x86/apic: Fix suspicious RCU usage in smp_trace_call_function_interrupt()
x86/irq: Cure live lock in fixup_irqs()
PCI: ACPI: IA64: fix IO port generic range check
PCI: Disable IO/MEM decoding for devices with non-compliant BARs
pinctrl-bcm2835: Fix cut-and-paste error in "pull" parsing
s390/pci: enforce fmb page boundary rule
s390/cpumf: add missing lpp magic initialization
s390: fix floating pointer register corruption (again)
EDAC, amd64_edac: Shift wrapping issue in f1x_get_norm_dct_addr()
EDAC/sb_edac: Fix computation of channel address
sched/preempt, sh: kmap_coherent relies on disabled preemption
sched/cputime: Fix steal_account_process_tick() to always return jiffies
Thermal: Ignore invalid trip points
perf tools: Fix python extension build
perf tools: Fix checking asprintf return value
perf tools: Dont stop PMU parsing on alias parse error
perf/core: Fix perf_sched_count derailment
KVM: VMX: fix nested vpid for old KVM guests
KVM: VMX: avoid guest hang on invalid invvpid instruction
KVM: VMX: avoid guest hang on invalid invept instruction
KVM: fix spin_lock_init order on x86
KVM: i8254: change PIT discard tick policy
KVM: x86: fix missed hardware breakpoints
x86/PCI: Mark Broadwell-EP Home Agent & PCU as having non-compliant BARs
perf/x86/intel: Add definition for PT PMI bit
x86/entry/compat: Keep TS_COMPAT set during signal delivery
x86/microcode: Untangle from BLK_DEV_INITRD
x86/microcode/intel: Make early loader look for builtin microcode too
mmc: sh_mmcif: Correct TX DMA channel allocation
mmc: sh_mmcif: rework dma channel handling
ASoC: samsung: pass DMA channels as pointers
regulator: core: Fix nested locking of supplies
regulator: core: avoid unused variable warning
s390/cpumf: Fix lpp detection
cpufreq: dt: No need to allocate resources anymore
cpufreq: dt: No need to fetch voltage-tolerance
cpufreq: dt: Use dev_pm_opp_set_rate() to switch frequency
cpufreq: dt: Reuse dev_pm_opp_get_max_transition_latency()
cpufreq: dt: Unsupported OPPs are already disabled
cpufreq: dt: Pass regulator name to the OPP core
cpufreq: dt: OPP layers handles clock-latency for V1 bindings as well
cpufreq: dt: Rename 'need_update' to 'opp_v1'
cpufreq: dt: Convert few pr_debug/err() calls to dev_dbg/err()
cpufreq-dt: fix handling regulator_get_voltage() result
cpufreq-dt: Supply power coefficient when registering cooling devices
PM / OPP: Rename structures for clarity
PM / OPP: Fix incorrect comments
PM / OPP: Initialize regulator pointer to an error value
PM / OPP: Initialize u_volt_min/max to a valid value
PM / OPP: Fix NULL pointer dereference crash when disabling OPPs
PM / OPP: Add dev_pm_opp_set_rate()
PM / OPP: Manage device clk
PM / OPP: Parse clock-latency and voltage-tolerance for v1 bindings
PM / OPP: Introduce dev_pm_opp_get_max_transition_latency()
PM / OPP: Introduce dev_pm_opp_get_max_volt_latency()
PM / OPP: Disable OPPs that aren't supported by the regulator
PM / OPP: get/put regulators from OPP core
cpufreq: cpufreq-dt: avoid uninitialized variable warnings:
PM / OPP: Use snprintf() instead of sprintf()
PM / OPP: Set cpu_dev->id in cpumask first
PM / OPP: Fix parsing of opp-microvolt and opp-microamp properties
PM / OPP: Parse 'opp-<prop>-<name>' bindings
PM / OPP: Parse 'opp-supported-hw' binding
PM / OPP: Add missing doc comments
PM / OPP: Rename OPP nodes as opp@<opp-hz>
PM / OPP: Remove 'operating-points-names' binding
PM / OPP: Add {opp-microvolt|opp-microamp}-<name> binding
PM / OPP: Add "opp-supported-hw" binding
PM / OPP: Add debugfs support
arm64: vdso: Mark vDSO code as read-only
Conflicts:
drivers/staging/android/ion/ion.c
mm/page_alloc.c
CRs-Fixed: 1010239
Change-Id: Id59539cad642885e1e41340cebae4159ba1f7eaf
Signed-off-by: Trilok Soni <tsoni@codeaurora.org>
When some data is written to a file both mmap and regular io
there can be race conditions that can cause incorrect data
to be saved.
Disable passthrough on the specific files on which mmap is called
until we add mmap support to passthrough.
Change-Id: Ic24219ab22d3130aa7e9e998a9e6798648a7321c
Signed-off-by: Nikhilesh Reddy <reddyn@codeaurora.org>
Allows FUSE to report to inotify that it is acting
as a layered filesystem. The userspace component
returns a string representing the location of the
underlying file. If the string cannot be resolved
into a path, the top level path is returned instead.
bug: 23904372
Change-Id: Iabdca0bbedfbff59e9c820c58636a68ef9683d9f
Signed-off-by: Daniel Rosenberg <drosen@google.com>
commit 744742d692e37ad5c20630e57d526c8f2e2fe3c9 upstream.
The 'reqs' member of fuse_io_priv serves two purposes. First is to track
the number of oustanding async requests to the server and to signal that
the io request is completed. The second is to be a reference count on the
structure to know when it can be freed.
For sync io requests these purposes can be at odds. fuse_direct_IO() wants
to block until the request is done, and since the signal is sent when
'reqs' reaches 0 it cannot keep a reference to the object. Yet it needs to
use the object after the userspace server has completed processing
requests. This leads to some handshaking and special casing that it
needlessly complicated and responsible for at least one race condition.
It's much cleaner and safer to maintain a separate reference count for the
object lifecycle and to let 'reqs' just be a count of outstanding requests
to the userspace server. Then we can know for sure when it is safe to free
the object without any handshaking or special cases.
The catch here is that most of the time these objects are stack allocated
and should not be freed. Initializing these objects with a single reference
that is never released prevents accidental attempts to free the objects.
Fixes: 9d5722b777 ("fuse: handle synchronous iocbs internally")
Signed-off-by: Seth Forshee <seth.forshee@canonical.com>
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Add support for filesystem passthrough read/write of files
when enabled in userspace through the option FUSE_PASSTHROUGH.
There are many FUSE based filesystems that perform checks or
enforce policy or perform some kind of decision making in certain
functions like the "open" call but simply act as a "passthrough"
when performing operations such as read or write.
When FUSE_PASSTHROUGH is enabled all the reads and writes
to the fuse mount point go directly to the passthrough filesystem
i.e a native filesystem that actually hosts the files rather than
through the fuse daemon. All requests that aren't read/write still
go thought the userspace code.
This allows for significantly better performance on read and writes.
The difference in performance between fuse and the native lower
filesystem is negligible.
There is also a significant cpu/power savings that is achieved which
is really important on embedded systems that use fuse for I/O.
Changelog:
v5:
Fix the check when setting the passthrough file
[Found when testing by Mike Shal]
v3 and v4:
Use the fs_stack_depth to prevent further stacking and a minor fix
[Fix suggested by Jann Horn]
v2:
Changed the feature name to passthrough from stacked_io
[Proposed by Linus Torvalds]
Signed-off-by: Nikhilesh Reddy <reddyn@codeaurora.org>
Make each fuse device clone refer to a separate processing queue. The only
constraint on userspace code is that the request answer must be written to
the same device clone as it was read off.
Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
Allow fuse device clones to refer to be distinguished. This patch just
adds the infrastructure by associating a separate "struct fuse_dev" with
each clone.
Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
Reviewed-by: Ashish Samant <ashish.samant@oracle.com>
When an unlocked request is aborted, it is moved from fpq->io to a private
list. Then, after unlocking fpq->lock, the private list is processed and
the requests are finished off.
To protect the private list, we need to mark the request with a flag, so if
in the meantime the request is unlocked the list is not corrupted.
Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
Reviewed-by: Ashish Samant <ashish.samant@oracle.com>
Add a fpq->lock for protecting members of struct fuse_pqueue and FR_LOCKED
request flag.
Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
Reviewed-by: Ashish Samant <ashish.samant@oracle.com>
This will allow checking ->connected just with the processing queue lock.
Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
Reviewed-by: Ashish Samant <ashish.samant@oracle.com>
This is just two fields: fc->io and fc->processing.
This patch just rearranges the fields, no functional change.
Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
Reviewed-by: Ashish Samant <ashish.samant@oracle.com>
This will allow checking ->connected just with the input queue lock.
Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
Reviewed-by: Ashish Samant <ashish.samant@oracle.com>
The input queue contains normal requests (fc->pending), forgets
(fc->forget_*) and interrupts (fc->interrupts). There's also fc->waitq and
fc->fasync for waking up the readers of the fuse device when a request is
available.
The fc->reqctr is also moved to the input queue (assigned to the request
when the request is added to the input queue.
This patch just rearranges the fields, no functional change.
Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
Reviewed-by: Ashish Samant <ashish.samant@oracle.com>
Use flags for representing the state in fuse_req. This is needed since
req->list will be protected by different locks in different states, hence
we'll want the state itself to be split into distinct bits, each protected
with the relevant lock in that state.
Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
FUSE_REQ_INIT is actually the same state as FUSE_REQ_PENDING and
FUSE_REQ_READING and FUSE_REQ_WRITING can be merged into a common
FUSE_REQ_IO state.
Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
Reviewed-by: Ashish Samant <ashish.samant@oracle.com>
Finer grained locking will mean there's no single lock to protect
modification of bitfileds in fuse_req.
So move to using bitops. Can use the non-atomic variants for those which
happen while the request definitely has only one reference.
Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
Reviewed-by: Ashish Samant <ashish.samant@oracle.com>
Based on a patch from Maxim Patlasov <MPatlasov@parallels.com>.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Theoretically we need to order setting of various fields in fc with
fc->initialized.
No known bug reports related to this yet.
Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
The following pattern is repeated many times:
req = fuse_get_req_nopages(fc);
/* Initialize req->(in|out).args */
fuse_request_send(fc, req);
err = req->out.h.error;
fuse_put_request(req);
Create a new replacement helper:
/* Initialize args */
err = fuse_simple_request(fc, &args);
In addition to reducing the code size, this will ease moving from the
complex arg-based to a simpler page-based I/O on the fuse device.
Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
path_put() in release could trigger a DESTROY request in fuseblk. The
possible deadlock was worked around by doing the path_put() with
schedule_work().
This complexity isn't needed if we just hold the inode instead of the path.
Since we now flush all requests before destroying the super block we can be
sure that all held inodes will be dropped.
Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
Use fuse_abort_conn() instead of fuse_conn_kill() in fuse_put_super().
This flushes and aborts requests still on any queues. But since we've
already reset fc->connected, those requests would not be useful anyway and
would be flushed when the fuse device is closed.
Next patches will rely on requests being flushed before the superblock is
destroyed.
Use fuse_abort_conn() in cuse_process_init_reply() too, since it makes no
difference there, and we can get rid of fuse_conn_kill().
Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
The patch extends fuse_setattr_in, and extends the flush procedure
(fuse_flush_times()) called on ->write_inode() to send the ctime as well as
mtime.
Signed-off-by: Maxim Patlasov <MPatlasov@parallels.com>
Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
...and flush mtime from this. This allows us to use the kernel
infrastructure for writing out dirty metadata (mtime at this point, but
ctime in the next patches and also maybe atime).
Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
The problem is:
1. write cached data to a file
2. read directly from the same file (via another fd)
The 2nd operation may read stale data, i.e. the one that was in a file
before the 1st op. Problem is in how fuse manages writeback.
When direct op occurs the core kernel code calls filemap_write_and_wait
to flush all the cached ops in flight. But fuse acks the writeback right
after the ->writepages callback exits w/o waiting for the real write to
happen. Thus the subsequent direct op proceeds while the real writeback
is still in flight. This is a problem for backends that reorder operation.
Fix this by making the fuse direct IO callback explicitly wait on the
in-flight writeback to finish.
Signed-off-by: Maxim Patlasov <MPatlasov@parallels.com>
Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
Let the kernel maintain i_mtime locally:
- clear S_NOCMTIME
- implement i_op->update_time()
- flush mtime on fsync and last close
- update i_mtime explicitly on truncate and fallocate
Fuse inode flag FUSE_I_MTIME_DIRTY serves as indication that local i_mtime
should be flushed to the server eventually.
Signed-off-by: Maxim Patlasov <MPatlasov@parallels.com>
Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
Off (0) by default. Will be used in the next patches and will be turned
on at the very end.
Signed-off-by: Maxim Patlasov <MPatlasov@parallels.com>
Signed-off-by: Pavel Emelyanov <xemul@openvz.org>
Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
open/release operations require userspace transitions to keep track
of the open count and to perform any FS-specific setup. However,
for some purely read-only FSs which don't need to perform any setup
at open/release time, we can avoid the performance overhead of
calling into userspace for open/release calls.
This patch adds the necessary support to the fuse kernel modules to prevent
open/release operations from hitting in userspace. When the client returns
ENOSYS, we avoid sending the subsequent release to userspace, and also
remember this so that future opens also don't trigger a userspace
operation.
Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
Various read operations (e.g. readlink, readdir) invalidate the cached
attrs for atime changes. This patch adds a new function
'fuse_invalidate_atime', which checks for a read-only super block and
avoids the attr invalidation in that case.
Signed-off-by: Andrew Gallagher <andrewjcg@fb.com>
Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
Pull vfs updates from Al Viro:
"All kinds of stuff this time around; some more notable parts:
- RCU'd vfsmounts handling
- new primitives for coredump handling
- files_lock is gone
- Bruce's delegations handling series
- exportfs fixes
plus misc stuff all over the place"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (101 commits)
ecryptfs: ->f_op is never NULL
locks: break delegations on any attribute modification
locks: break delegations on link
locks: break delegations on rename
locks: helper functions for delegation breaking
locks: break delegations on unlink
namei: minor vfs_unlink cleanup
locks: implement delegations
locks: introduce new FL_DELEG lock flag
vfs: take i_mutex on renamed file
vfs: rename I_MUTEX_QUOTA now that it's not used for quotas
vfs: don't use PARENT/CHILD lock classes for non-directories
vfs: pull ext4's double-i_mutex-locking into common code
exportfs: fix quadratic behavior in filehandle lookup
exportfs: better variable name
exportfs: move most of reconnect_path to helper function
exportfs: eliminate unused "noprogress" counter
exportfs: stop retrying once we race with rename/remove
exportfs: clear DISCONNECTED on all parents sooner
exportfs: more detailed comment for path_reconnect
...
...which just returns -EBUSY if a directory alias would be created.
This is to be used by fuse mkdir to make sure that a buggy or malicious
userspace filesystem doesn't do anything nasty. Previously fuse used a
private mutex for this purpose, which can now go away.
Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
As Maxim Patlasov pointed out, it's possible to get a dirty page while it's
copy is still under writeback, despite fuse_page_mkwrite() doing its thing
(direct IO).
This could result in two concurrent write request for the same offset, with
data corruption if they get mixed up.
To prevent this, fuse needs to check and delay such writes. This
implementation does this by:
1. check if page is still under writeout, if so create a new, single page
secondary request for it
2. chain this secondary request onto the in-flight request
2/a. if a seconday request for the same offset was already chained to the
in-flight request, then just copy the contents of the page and discard
the new secondary request. This makes sure that for each page will
have at most two requests associated with it
3. when the in-flight request finished, send off all secondary requests
chained onto it
Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
Doing dput(parent) is not valid in RCU walk mode. In RCU mode it would
probably be okay to update the parent flags, but it's actually not
necessary most of the time...
So only set the FUSE_I_ADVISE_RDPLUS flag on the parent when the entry was
recently initialized by READDIRPLUS.
This is achieved by setting FUSE_I_INIT_RDPLUS on entries added by
READDIRPLUS and only dropping out of RCU mode if this flag is set.
FUSE_I_INIT_RDPLUS is cleared once the FUSE_I_ADVISE_RDPLUS flag is set in
the parent.
Reported-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
Cc: stable@vger.kernel.org
The way how fuse calls truncate_pagecache() from fuse_change_attributes()
is completely wrong. Because, w/o i_mutex held, we never sure whether
'oldsize' and 'attr->size' are valid by the time of execution of
truncate_pagecache(inode, oldsize, attr->size). In fact, as soon as we
released fc->lock in the middle of fuse_change_attributes(), we completely
loose control of actions which may happen with given inode until we reach
truncate_pagecache. The list of potentially dangerous actions includes
mmap-ed reads and writes, ftruncate(2) and write(2) extending file size.
The typical outcome of doing truncate_pagecache() with outdated arguments
is data corruption from user point of view. This is (in some sense)
acceptable in cases when the issue is triggered by a change of the file on
the server (i.e. externally wrt fuse operation), but it is absolutely
intolerable in scenarios when a single fuse client modifies a file without
any external intervention. A real life case I discovered by fsx-linux
looked like this:
1. Shrinking ftruncate(2) comes to fuse_do_setattr(). The latter sends
FUSE_SETATTR to the server synchronously, but before getting fc->lock ...
2. fuse_dentry_revalidate() is asynchronously called. It sends FUSE_LOOKUP
to the server synchronously, then calls fuse_change_attributes(). The
latter updates i_size, releases fc->lock, but before comparing oldsize vs
attr->size..
3. fuse_do_setattr() from the first step proceeds by acquiring fc->lock and
updating attributes and i_size, but now oldsize is equal to
outarg.attr.size because i_size has just been updated (step 2). Hence,
fuse_do_setattr() returns w/o calling truncate_pagecache().
4. As soon as ftruncate(2) completes, the user extends file size by
write(2) making a hole in the middle of file, then reads data from the hole
either by read(2) or mmap-ed read. The user expects to get zero data from
the hole, but gets stale data because truncate_pagecache() is not executed
yet.
The scenario above illustrates one side of the problem: not truncating the
page cache even though we should. Another side corresponds to truncating
page cache too late, when the state of inode changed significantly.
Theoretically, the following is possible:
1. As in the previous scenario fuse_dentry_revalidate() discovered that
i_size changed (due to our own fuse_do_setattr()) and is going to call
truncate_pagecache() for some 'new_size' it believes valid right now. But
by the time that particular truncate_pagecache() is called ...
2. fuse_do_setattr() returns (either having called truncate_pagecache() or
not -- it doesn't matter).
3. The file is extended either by write(2) or ftruncate(2) or fallocate(2).
4. mmap-ed write makes a page in the extended region dirty.
The result will be the lost of data user wrote on the fourth step.
The patch is a hotfix resolving the issue in a simplistic way: let's skip
dangerous i_size update and truncate_pagecache if an operation changing
file size is in progress. This simplistic approach looks correct for the
cases w/o external changes. And to handle them properly, more sophisticated
and intrusive techniques (e.g. NFS-like one) would be required. I'd like to
postpone it until the issue is well discussed on the mailing list(s).
Changed in v2:
- improved patch description to cover both sides of the issue.
Signed-off-by: Maxim Patlasov <mpatlasov@parallels.com>
Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
Cc: stable@vger.kernel.org
Without async DIO write requests to a single file were always serialized.
With async DIO that's no longer the case.
So don't turn on async DIO by default for fear of breaking backward
compatibility.
Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
The patch improves error handling in fuse_direct_IO(): if we successfully
submitted several fuse requests on behalf of synchronous direct write
extending file and some of them failed, let's try to do our best to clean-up.
Changed in v2: reuse fuse_do_setattr(). Thanks to Brian for suggestion.
Signed-off-by: Maxim Patlasov <mpatlasov@parallels.com>
Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
The patch implements passing "struct fuse_io_priv *io" down the stack up to
fuse_send_read/write where it is used to submit request asynchronously.
io->async==0 designates synchronous processing.
Non-trivial part of the patch is changes in fuse_direct_io(): resources
like fuse requests and user pages cannot be released immediately in async
case.
Signed-off-by: Maxim Patlasov <mpatlasov@parallels.com>
Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
The patch implements a framework to process an IO request asynchronously. The
idea is to associate several fuse requests with a single kiocb by means of
fuse_io_priv structure. The structure plays the same role for FUSE as 'struct
dio' for direct-io.c.
The framework is supposed to be used like this:
- someone (who wants to process an IO asynchronously) allocates fuse_io_priv
and initializes it setting 'async' field to non-zero value.
- as soon as fuse request is filled, it can be submitted (in non-blocking way)
by fuse_async_req_send()
- when all submitted requests are ACKed by userspace, io->reqs drops to zero
triggering aio_complete()
In case of IO initiated by libaio, aio_complete() will finish processing the
same way as in case of dio_complete() calling aio_complete(). But the
framework may be also used for internal FUSE use when initial IO request
was synchronous (from user perspective), but it's beneficial to process it
asynchronously. Then the caller should wait on kiocb explicitly and
aio_complete() will wake the caller up.
Signed-off-by: Maxim Patlasov <mpatlasov@parallels.com>
Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
Existing flag fc->blocked is used to suspend request allocation both in case
of many background request submitted and period of time before init_reply
arrives from userspace. Next patch will skip blocking allocations of
synchronous request (disregarding fc->blocked). This is mostly OK, but
we still need to suspend allocations if init_reply is not arrived yet. The
patch introduces flag fc->initialized which will serve this purpose.
Signed-off-by: Maxim Patlasov <mpatlasov@parallels.com>
Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
There are two types of processing requests in FUSE: synchronous (via
fuse_request_send()) and asynchronous (via adding to fc->bg_queue).
Fortunately, the type of processing is always known in advance, at the time
of request allocation. This preparatory patch utilizes this fact making
fuse_get_req() aware about the type. Next patches will use it.
Signed-off-by: Maxim Patlasov <mpatlasov@parallels.com>
Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
For some filesystems (e.g. GlusterFS), the cost of performing a
normal readdir and readdirplus are identical. Since adaptively
using readdirplus has no benefit for those systems, give
users/filesystems the option to control adaptive readdirplus use.
v2 of this patch incorporates Miklos's suggestion to simplify the code,
as well as improving consistency of macro names and documentation.
Signed-off-by: Eric Wong <normalperson@yhbt.net>
Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
Use the same adaptive readdirplus mechanism as NFS:
http://permalink.gmane.org/gmane.linux.nfs/49299
If the user space implementation wants to disable readdirplus
temporarily, it could just return ENOTSUPP. Then kernel will
recall it with readdir.
Signed-off-by: Feng Shuo <steve.shuo.feng@gmail.com>
Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
Commit c69e8d9c0 added rcu lock to fuse/dir.c It was assuming
that 'task' is some other process but in fact this parameter always
equals to 'current'. Inline this parameter to make it more readable
and remove RCU lock as it is not needed when access current process
credentials.
Signed-off-by: Anatol Pomozov <anatol.pomozov@gmail.com>
Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
