Commit Graph

6 Commits

Author SHA1 Message Date
Kyle Yan
270098374e Revert "locking/spinlock/debug: Remove spinlock lockup detection code"
This reverts commit c0c6dff923.

We cannot always rely upon NMI watchdog to help catch spinlock lockups.
Revert the change that removes __spinlock_debug as the benefits outweight
the potential false positives.

Change-Id: I58858c4a2443c0a6b209ea90545ebdbd72b3abfe
Signed-off-by: Kyle Yan <kyan@codeaurora.org>
2017-09-28 10:51:04 -07:00
Kyle Yan
7d337cc7f9 Merge remote-tracking branch '4.9/tmp-85e1c01' into 4.9
* 4.9/tmp-85e1c01:
  Linux 4.9.48
  epoll: fix race between ep_poll_callback(POLLFREE) and ep_free()/ep_remove()
  kvm: arm/arm64: Force reading uncached stage2 PGD
  drm/ttm: Fix accounting error when fail to get pages for pool
  xfrm: policy: check policy direction value
  lib/mpi: kunmap after finishing accessing buffer
  wl1251: add a missing spin_lock_init()
  CIFS: remove endian related sparse warning
  CIFS: Fix maximum SMB2 header size
  alpha: uapi: Add support for __SANE_USERSPACE_TYPES__
  cpuset: Fix incorrect memory_pressure control file mapping
  cpumask: fix spurious cpumask_of_node() on non-NUMA multi-node configs
  ceph: fix readpage from fscache
  mm, madvise: ensure poisoned pages are removed from per-cpu lists
  mm, uprobes: fix multiple free of ->uprobes_state.xol_area
  crypto: algif_skcipher - only call put_page on referenced and used pages
  i2c: ismt: Return EMSGSIZE for block reads with bogus length
  i2c: ismt: Don't duplicate the receive length for block reads
  irqchip: mips-gic: SYNC after enabling GIC region
  ANDROID: fiq_debugger: Fix minor bug in code
  ANDROID: configs: remove requirement for CONFIG_SYNC
  FROMLIST: binder: fix an ret value override
  FROMLIST: binder: fix memory corruption in binder_transaction binder
  Linux 4.9.47
  lz4: fix bogus gcc warning
  scsi: sg: reset 'res_in_use' after unlinking reserved array
  scsi: sg: protect accesses to 'reserved' page array
  locking/spinlock/debug: Remove spinlock lockup detection code
  arm64: fpsimd: Prevent registers leaking across exec
  x86/io: Add "memory" clobber to insb/insw/insl/outsb/outsw/outsl
  arm64: mm: abort uaccess retries upon fatal signal
  kvm: arm/arm64: Fix race in resetting stage2 PGD
  gcov: support GCC 7.1
  staging: wilc1000: simplify vif[i]->ndev accesses
  scsi: isci: avoid array subscript warning
  p54: memset(0) whole array
  FROMLIST: android: binder: Add page usage in binder stats
  FROMLIST: android: binder: Add shrinker tracepoints
  FROMLIST: android: binder: Add global lru shrinker to binder
  FROMLIST: android: binder: Move buffer out of area shared with user space
  FROMLIST: android: binder: Add allocator selftest
  FROMLIST: android: binder: Refactor prev and next buffer into a helper function
  android: android-base.config: enable IP6_NF_MATCH_RPFILTER
  Linux 4.9.46
  powerpc/mm: Ensure cpumask update is ordered
  ACPI: EC: Fix regression related to wrong ECDT initialization order
  ACPI / APEI: Add missing synchronize_rcu() on NOTIFY_SCI removal
  ACPI: ioapic: Clear on-stack resource before using it
  ntb: transport shouldn't disable link due to bogus values in SPADs
  ntb: ntb_test: ensure the link is up before trying to configure the mws
  ntb: no sleep in ntb_async_tx_submit
  NTB: ntb_test: fix bug printing ntb_perf results
  ntb_transport: fix bug calculating num_qps_mw
  ntb_transport: fix qp count bug
  Clarify (and fix) MAX_LFS_FILESIZE macros
  staging: rtl8188eu: add RNX-N150NUB support
  iio: hid-sensor-trigger: Fix the race with user space powering up sensors
  iio: imu: adis16480: Fix acceleration scale factor for adis16480
  ANDROID: binder: fix proc->tsk check.
  binder: Use wake up hint for synchronous transactions.
  binder: use group leader instead of open thread
  Revert "android: binder: Sanity check at binder ioctl"
  Bluetooth: bnep: fix possible might sleep error in bnep_session
  Bluetooth: cmtp: fix possible might sleep error in cmtp_session
  Bluetooth: hidp: fix possible might sleep error in hidp_session_thread
  netfilter: nat: fix src map lookup
  Revert "leds: handle suspend/resume in heartbeat trigger"
  net: sunrpc: svcsock: fix NULL-pointer exception
  x86/mm: Fix use-after-free of ldt_struct
  timers: Fix excessive granularity of new timers after a nohz idle
  perf/x86/intel/rapl: Make package handling more robust
  perf probe: Fix --funcs to show correct symbols for offline module
  perf/core: Fix group {cpu,task} validation
  ftrace: Check for null ret_stack on profile function graph entry function
  nfsd: Limit end of page list when decoding NFSv4 WRITE
  cifs: return ENAMETOOLONG for overlong names in cifs_open()/cifs_lookup()
  cifs: Fix df output for users with quota limits
  kbuild: linker script do not match C names unless LD_DEAD_CODE_DATA_ELIMINATION is configured
  tracing: Fix freeing of filter in create_filter() when set_str is false
  tracing: Fix kmemleak in tracing_map_array_free()
  tracing: Call clear_boot_tracer() at lateinit_sync
  drm: rcar-du: Fix H/V sync signal polarity configuration
  drm: rcar-du: Fix display timing controller parameter
  drm: rcar-du: Fix crash in encoder failure error path
  drm/atomic: If the atomic check fails, return its value first
  drm: Release driver tracking before making the object available again
  mm/memblock.c: reversed logic in memblock_discard()
  fork: fix incorrect fput of ->exe_file causing use-after-free
  mm/madvise.c: fix freeing of locked page with MADV_FREE
  i2c: designware: Fix system suspend
  mm, shmem: fix handling /sys/kernel/mm/transparent_hugepage/shmem_enabled
  ARCv2: PAE40: Explicitly set MSB counterpart of SLC region ops addresses
  ALSA: firewire: fix NULL pointer dereference when releasing uninitialized data of iso-resource
  ALSA: hda - Add stereo mic quirk for Lenovo G50-70 (17aa:3978)
  ALSA: core: Fix unexpected error at replacing user TLV
  ALSA: usb-audio: Add delay quirk for H650e/Jabra 550a USB headsets
  KVM: x86: block guest protection keys unless the host has them enabled
  KVM: s390: sthyi: fix specification exception detection
  KVM: s390: sthyi: fix sthyi inline assembly
  Input: ALPS - fix two-finger scroll breakage in right side on ALPS touchpad
  Input: elan_i2c - add ELAN0602 ACPI ID to support Lenovo Yoga310
  Input: trackpoint - add new trackpoint firmware ID
  bpf/verifier: fix min/max handling in BPF_SUB
  bpf: fix mixed signed/unsigned derived min/max value bounds
  bpf, verifier: fix alu ops against map_value{, _adj} register types
  bpf: adjust verifier heuristics
  bpf, verifier: add additional patterns to evaluate_reg_imm_alu
  net_sched: fix order of queue length updates in qdisc_replace()
  net: sched: fix NULL pointer dereference when action calls some targets
  irda: do not leak initialized list.dev to userspace
  net/mlx4_core: Enable 4K UAR if SRIOV module parameter is not enabled
  tcp: when rearming RTO, if RTO time is in past then fire RTO ASAP
  ipv6: repair fib6 tree in failure case
  ipv6: reset fn->rr_ptr when replacing route
  tipc: fix use-after-free
  sctp: fully initialize the IPv6 address in sctp_v6_to_addr()
  nfp: fix infinite loop on umapping cleanup
  ipv4: better IP_MAX_MTU enforcement
  ptr_ring: use kmalloc_array()
  openvswitch: fix skb_panic due to the incorrect actions attrlen
  bpf: fix bpf_trace_printk on 32 bit archs
  net_sched: remove warning from qdisc_hash_add
  net_sched/sfq: update hierarchical backlog when drop packet
  ipv4: fix NULL dereference in free_fib_info_rcu()
  dccp: defer ccid_hc_tx_delete() at dismantle time
  dccp: purge write queue in dccp_destroy_sock()
  af_key: do not use GFP_KERNEL in atomic contexts
  sparc64: remove unnecessary log message
  ANDROID: NFC: st21nfca: Fix memory OOB and leak issues in connectivity events handler
  Linux 4.9.45
  usb: qmi_wwan: add D-Link DWM-222 device ID
  usb: optimize acpi companion search for usb port devices
  pids: make task_tgid_nr_ns() safe
  Sanitize 'move_pages()' permission checks
  genirq/ipi: Fixup checks against nr_cpu_ids
  genirq: Restore trigger settings in irq_modify_status()
  irqchip/atmel-aic: Fix unbalanced refcount in aic_common_rtc_irq_fixup()
  irqchip/atmel-aic: Fix unbalanced of_node_put() in aic_common_irq_fixup()
  x86/asm/64: Clear AC on NMI entries
  xen-blkfront: use a right index when checking requests
  powerpc: Fix VSX enabling/flushing to also test MSR_FP and MSR_VEC
  blk-mq-pci: add a fallback when pci_irq_get_affinity returns NULL
  xen: fix bio vec merging
  mm: revert x86_64 and arm64 ELF_ET_DYN_BASE base changes
  mm/mempolicy: fix use after free when calling get_mempolicy
  mm: fix double mmap_sem unlock on MMF_UNSTABLE enforced SIGBUS
  mm: discard memblock data later
  ALSA: usb-audio: Add mute TLV for playback volumes on C-Media devices
  ALSA: usb-audio: Apply sample rate quirk to Sennheiser headset
  ALSA: seq: 2nd attempt at fixing race creating a queue
  Input: elan_i2c - Add antoher Lenovo ACPI ID for upcoming Lenovo NB
  Input: elan_i2c - add ELAN0608 to the ACPI table
  crypto: x86/sha1 - Fix reads beyond the number of blocks passed
  crypto: ixp4xx - Fix error handling path in 'aead_perform()'
  parisc: pci memory bar assignment fails with 64bit kernels on dino/cujo
  audit: Fix use after free in audit_remove_watch_rule()
  netfilter: nf_ct_ext: fix possible panic after nf_ct_extend_unregister
  ANDROID: check dir value of xfrm_userpolicy_id
  ANDROID: NFC: Fix possible memory corruption when handling SHDLC I-Frame commands
  ANDROID: nfc: fdp: Fix possible buffer overflow in WCS4000 NFC driver
  ANDROID: NFC: st21nfca: Fix out of bounds kernel access when handling ATR_REQ
  ANDROID: usb: gadget: assign no-op request complete callbacks
  ANDROID: usb: gadget: configfs: fix null ptr in android_disconnect
  ANDROID: uid_sys_stats: Fix implicit declaration of get_cmdline()
  uid_sys_stats: log task io with a debug flag
  Linux 4.9.44
  MIPS: DEC: Fix an int-handler.S CPU_DADDI_WORKAROUNDS regression
  pinctrl: meson-gxbb: Add missing GPIODV_18 pin entry
  pinctrl: samsung: Remove bogus irq_[un]mask from resource management
  pinctrl: uniphier: fix WARN_ON() of pingroups dump on LD20
  pinctrl: uniphier: fix WARN_ON() of pingroups dump on LD11
  pinctrl: intel: merrifield: Correct UART pin lists
  pinctrl: sunxi: add a missing function of A10/A20 pinctrl driver
  pnfs/blocklayout: require 64-bit sector_t
  iio: adc: vf610_adc: Fix VALT selection value for REFSEL bits
  usb:xhci:Add quirk for Certain failing HP keyboard on reset after resume
  usb: quirks: Add no-lpm quirk for Moshi USB to Ethernet Adapter
  usb: core: unlink urbs from the tail of the endpoint's urb_list
  USB: Check for dropped connection before switching to full speed
  usb: renesas_usbhs: Fix UGCTRL2 value for R-Car Gen3
  usb: gadget: udc: renesas_usb3: Fix usb_gadget_giveback_request() calling
  uas: Add US_FL_IGNORE_RESIDUE for Initio Corporation INIC-3069
  staging: comedi: comedi_fops: do not call blocking ops when !TASK_RUNNING
  iio: light: tsl2563: use correct event code
  iio: accel: bmc150: Always restore device to normal mode after suspend-resume
  staging:iio:resolver:ad2s1210 fix negative IIO_ANGL_VEL read
  USB: hcd: Mark secondary HCD as dead if the primary one died
  usb: musb: fix tx fifo flush handling again
  USB: serial: pl2303: add new ATEN device id
  USB: serial: cp210x: add support for Qivicon USB ZigBee dongle
  USB: serial: option: add D-Link DWM-222 device ID
  drm/i915: Fix out-of-bounds array access in bdw_load_gamma_lut
  drm/etnaviv: Fix off-by-one error in reloc checking
  nfs/flexfiles: fix leak of nfs4_ff_ds_version arrays
  mmc: mmc: correct the logic for setting HS400ES signal voltage
  nand: fix wrong default oob layout for small pages using soft ecc
  fuse: initialize the flock flag in fuse_file on allocation
  target: Fix node_acl demo-mode + uncached dynamic shutdown regression
  iscsi-target: Fix iscsi_np reset hung task during parallel delete
  iscsi-target: fix memory leak in iscsit_setup_text_cmd()
  mtd: nand: Fix timing setup for NANDs that do not support SET FEATURES
  xtensa: don't limit csum_partial export by CONFIG_NET
  xtensa: mm/cache: add missing EXPORT_SYMBOLs
  xtensa: fix cache aliasing handling code for WT cache
  futex: Remove unnecessary warning from get_futex_key
  mm: fix list corruptions on shmem shrinklist
  mm: ratelimit PFNs busy info message
  ANDROID: Use sk_uid to replace uid get from socket file
  Linux 4.9.43
  Revert "ARM: dts: sun8i: Support DTB build for NanoPi M1"
  KVM: arm/arm64: Handle hva aging while destroying the vm
  sparc64: Prevent perf from running during super critical sections
  udp: consistently apply ufo or fragmentation
  revert "ipv4: Should use consistent conditional judgement for ip fragment in __ip_append_data and ip_finish_output"
  revert "net: account for current skb length when deciding about UFO"
  packet: fix tp_reserve race in packet_set_ring
  igmp: Fix regression caused by igmp sysctl namespace code.
  net: avoid skb_warn_bad_offload false positives on UFO
  tcp: fastopen: tcp_connect() must refresh the route
  net: sched: set xt_tgchk_param par.nft_compat as 0 in ipt_init_target
  net/mlx4_en: don't set CHECKSUM_COMPLETE on SCTP packets
  bpf, s390: fix jit branch offset related to ldimm64
  net: fix keepalive code vs TCP_FASTOPEN_CONNECT
  tcp: avoid setting cwnd to invalid ssthresh after cwnd reduction states
  ppp: fix xmit recursion detection on ppp channels
  ppp: Fix false xmit recursion detect with two ppp devices
  Linux 4.9.42
  workqueue: implicit ordered attribute should be overridable
  net: phy: Fix PHY unbind crash
  net: account for current skb length when deciding about UFO
  ipv4: Should use consistent conditional judgement for ip fragment in __ip_append_data and ip_finish_output
  net/mlx5: E-Switch, Re-enable RoCE on mode change only after FDB destroy
  mm: don't dereference struct page fields of invalid pages
  signal: protect SIGNAL_UNKILLABLE from unintentional clearing.
  lib/Kconfig.debug: fix frv build failure
  mm, slab: make sure that KMALLOC_MAX_SIZE will fit into MAX_ORDER
  ARM: 8632/1: ftrace: fix syscall name matching
  virtio_blk: fix panic in initialization error path
  nbd: blk_mq_init_queue returns an error code on failure, not NULL
  iw_cxgb4: do not send RX_DATA_ACK CPLs after close/abort
  ARM: dts: sunxi: Change node name for pwrseq pin on Olinuxino-lime2-emmc
  ARM: dts: sun8i: Support DTB build for NanoPi M1
  drm/virtio: fix framebuffer sparse warning
  scsi: qla2xxx: Get mutex lock before checking optrom_state
  clk/samsung: exynos542x: mark some clocks as critical
  ipv4: make tcp_notsent_lowat sysctl knob behave as true unsigned int
  phy state machine: failsafe leave invalid RUNNING state
  netfilter: use fwmark_reflect in nf_send_reset
  ASoC: rt5645: set sel_i2s_pre_div1 to 2
  spi: spi-axi: Free resources on error path
  x86/boot: Add missing declaration of string functions
  tg3: Fix race condition in tg3_get_stats64().
  net: phy: dp83867: fix irq generation
  sh_eth: R8A7740 supports packet shecksumming
  sh_eth: fix EESIPR values for SH77{34|63}
  wext: handle NULL extra data in iwe_stream_add_point better
  sparc64: Fix exception handling in UltraSPARC-III memcpy.
  sparc64: Measure receiver forward progress to avoid send mondo timeout
  xen-netback: correctly schedule rate-limited queues
  net: phy: Correctly process PHY_HALTED in phy_stop_machine()
  net/mlx5e: Schedule overflow check work to mlx5e workqueue
  net/mlx5e: Fix wrong delay calculation for overflow check scheduling
  net/mlx5e: Fix outer_header_zero() check size
  net/mlx5: Fix command bad flow on command entry allocation failure
  net/mlx5: Consider tx_enabled in all modes on remap
  sctp: fix the check for _sctp_walk_params and _sctp_walk_errors
  sctp: don't dereference ptr before leaving _sctp_walk_{params, errors}()
  dccp: fix a memleak for dccp_feat_init err process
  dccp: fix a memleak that dccp_ipv4 doesn't put reqsk properly
  dccp: fix a memleak that dccp_ipv6 doesn't put reqsk properly
  net: ethernet: nb8800: Handle all 4 RGMII modes identically
  ipv6: Don't increase IPSTATS_MIB_FRAGFAILS twice in ip6_fragment()
  packet: fix use-after-free in prb_retire_rx_blk_timer_expired()
  openvswitch: fix potential out of bound access in parse_ct
  mcs7780: Fix initialization when CONFIG_VMAP_STACK is enabled
  rtnetlink: allocate more memory for dev_set_mac_address()
  ipv4: initialize fib_trie prior to register_netdev_notifier call.
  net: dsa: b53: Add missing ARL entries for BCM53125
  ipv6: avoid overflow of offset in ip6_find_1stfragopt
  net: Zero terminate ifr_name in dev_ifname().
  ipv4: ipv6: initialize treq->txhash in cookie_v[46]_check()
  tcp_bbr: init pacing rate on first RTT sample
  tcp_bbr: remove sk_pacing_rate=0 transient during init
  tcp_bbr: introduce bbr_init_pacing_rate_from_rtt() helper
  tcp_bbr: introduce bbr_bw_to_pacing_rate() helper
  tcp_bbr: cut pacing rate only if filled pipe
  saa7164: fix double fetch PCIe access condition
  Btrfs: fix early ENOSPC due to delalloc
  f2fs: sanity check checkpoint segno and blkoff
  media: lirc: LIRC_GET_REC_RESOLUTION should return microseconds
  mmc: core: Use device_property_read instead of of_property_read
  mmc: dw_mmc: Use device_property_read instead of of_property_read
  iscsi-target: Fix initial login PDU asynchronous socket close OOPs
  media: platform: davinci: return -EINVAL for VPFE_CMD_S_CCDC_RAW_PARAMS ioctl
  ARM: dts: tango4: Request RGMII RX and TX clock delays
  ARM: dts: armada-38x: Fix irq type for pca955
  ext4: fix overflow caused by missing cast in ext4_resize_fs()
  ext4: fix SEEK_HOLE/SEEK_DATA for blocksize < pagesize
  gpiolib: skip unwanted events, don't convert them to opposite edge
  iommu/amd: Enable ga_log_intr when enabling guest_mode
  powerpc/64: Fix __check_irq_replay missing decrementer interrupt
  powerpc/tm: Fix saving of TM SPRs in core dump
  timers: Fix overflow in get_next_timer_interrupt
  mm/page_alloc: Remove kernel address exposure in free_reserved_area()
  KVM: async_pf: make rcu irq exit if not triggered from idle task
  ASoC: do not close shared backend dailink
  drm/amdgpu: Fix undue fallthroughs in golden registers initialization
  ALSA: hda - Fix speaker output from VAIO VPCL14M1R
  cpuset: fix a deadlock due to incomplete patching of cpusets_enabled()
  mm, mprotect: flush TLB if potentially racing with a parallel reclaim leaving stale TLB entries
  mmc: core: Fix access to HS400-ES devices
  device property: Make dev_fwnode() public
  mmc: sdhci-of-at91: force card detect value for non removable devices
  NFSv4: Fix EXCHANGE_ID corrupt verifier issue
  brcmfmac: fix memleak due to calling brcmf_sdiod_sgtable_alloc() twice
  iwlwifi: dvm: prevent an out of bounds access
  workqueue: restore WQ_UNBOUND/max_active==1 to be ordered
  libata: array underflow in ata_find_dev()
  cgroup: fix error return value from cgroup_subtree_control()
  cgroup: create dfl_root files on subsys registration
  parisc: Handle vma's whose context is not current in flush_cache_range
  ANDROID: binder: don't queue async transactions to thread.
  ANDROID: binder: don't enqueue death notifications to thread todo.
  ANDROID: binder: call poll_wait() unconditionally.
  ANDROID: keychord: Fix for a memory leak in keychord.
  ANDROID: keychord: Fix races in keychord_write.
  android: configs: move quota-related configs to recommended
  ANDROID: sdcardfs: override credential for ioctl to lower fs
  ANDROID: xt_qtaguid: handle properly request sockets

Conflicts:
	drivers/staging/android/fiq_debugger/fiq_debugger.c
	include/linux/sched.h
	kernel/locking/spinlock_debug.c
	sound/soc/soc-pcm.c

Change-Id: I163a8c98f1737eeb01b9c8a0636a91d552ef349f
Signed-off-by: Kyle Yan <kyan@codeaurora.org>
2017-09-07 14:32:09 -07:00
Waiman Long
c0c6dff923 locking/spinlock/debug: Remove spinlock lockup detection code
commit bc88c10d7e6900916f5e1ba3829d66a9de92b633 upstream.

The current spinlock lockup detection code can sometimes produce false
positives because of the unfairness of the locking algorithm itself.

So the lockup detection code is now removed. Instead, we are relying
on the NMI watchdog to detect potential lockup. We won't have lockup
detection if the watchdog isn't running.

The commented-out read-write lock lockup detection code are also
removed.

Signed-off-by: Waiman Long <longman@redhat.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Sasha Levin <sasha.levin@oracle.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/1486583208-11038-1-git-send-email-longman@redhat.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-09-02 07:07:54 +02:00
Rohit Vaswani
173de7d179 lib: spinlock: Cause a watchdog bite on spin_dump
Currently we cause a BUG_ON once a spin_bug is detected, but
that causes a whole lot of processing and the other CPUs would
have proceeded to perform other actions and the state of the system
is moved by the time we can analyze it.
Provide an option to trigger  a watchdog bite instead so that we
can get the traces as close to the issue as possible.

Change-Id: Ic8d692ebd02c6940a3b4e5798463744db20b0026
Signed-off-by: Rohit Vaswani <rvaswani@codeaurora.org>
Signed-off-by: Prasad Sodagudi <psodagud@codeaurora.org>
Signed-off-by: Kyle Yan <kyan@codeaurora.org>
2016-12-05 10:35:32 -08:00
Rohit Vaswani
b8eeab8ed1 lib: spinlock_debug: Prevent continuous spin dump logs on panic
Once a spinlock lockup is detected on a CPU, we invoke a Kernel Panic.
During the panic handling, we might see more instances of spinlock
lockup from other CPUs. This causes the dmesg to be cluttered and makes
it cumbersome to detect what exactly happened.
Call spin_bug instead of calling spin_dump directly.

Change-Id: I57857a991345a8dac3cd952463d05129145867a8
Signed-off-by: Rohit Vaswani <rvaswani@codeaurora.org>
Signed-off-by: Prasad Sodagudi <psodagud@codeaurora.org>
Signed-off-by: Kyle Yan <kyan@codeaurora.org>
2016-09-20 11:34:13 -07:00
Peter Zijlstra
60fc28746a locking: Move the spinlock code to kernel/locking/
Suggested-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/n/tip-b81ol0z3mon45m51o131yc9j@git.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2013-11-06 07:55:21 +01:00