Commit Graph

1191 Commits

Author SHA1 Message Date
Al Viro 09b20ad836 Safer ABI for O_TMPFILE
[suggested by Rasmus Villemoes] make O_DIRECTORY | O_RDWR part of O_TMPFILE;
that will fail on old kernels in a lot more cases than what I came up with.
And make sure O_CREAT doesn't get there...

Change-Id: Iaa3c8b487d44515b539150bdb5d0b749b87d3ea2
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2018-12-03 11:52:36 +01:00
Al Viro dd8e7e379c it's still short a few helpers, but infrastructure should be OK now...
Change-Id: I0adb8fe9c5029bad3ac52629003c3b78e9442936
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2018-12-03 11:52:03 +01:00
Luca Stefani ff1ebfd98d This is the 3.10.102 stable release
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Merge tag 'v3.10.102' into HEAD

This is the 3.10.102 stable release

Change-Id: Ic7d338fb190966b26aa151361fc37414f701d8b2
2017-04-18 17:22:08 +02:00
Luca Stefani 4bead31629 This is the 3.10.97 stable release
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Merge tag 'v3.10.97' into HEAD

This is the 3.10.97 stable release

Change-Id: I57a42ce0af10c340f15384bab609c07fc6ab4b81
2017-04-18 17:17:20 +02:00
Luca Stefani 82b37d9f2f Merge remote-tracking branch 'f2fs/linux-3.10.y' into HEAD
Change-Id: Ic2fe24529f029909ddd96490bd6d885d60f88be2
2017-04-18 17:02:28 +02:00
LuK1337 fc9499e55a Import latest Samsung release
* Package version: T713XXU2BQCO

Change-Id: I293d9e7f2df458c512d59b7a06f8ca6add610c99
2017-04-18 03:43:52 +02:00
Helge Deller 247ed0d395 parisc: Fix kernel crash with reversed copy_from_user()
commit ef72f3110d8b19f4c098a0bff7ed7d11945e70c6 upstream.

The kernel module testcase (lib/test_user_copy.c) exhibited a kernel
crash on parisc if the parameters for copy_from_user were reversed
("illegal reversed copy_to_user" testcase).

Fix this potential crash by checking the fault handler if the faulting
address is in the exception table.

Signed-off-by: Helge Deller <deller@gmx.de>
Cc: Kees Cook <keescook@chromium.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Willy Tarreau <w@1wt.eu>
2016-06-07 10:42:48 +02:00
Helge Deller ac6a8eb7a7 parisc: Avoid function pointers for kernel exception routines
commit e3893027a300927049efc1572f852201eb785142 upstream.

We want to avoid the kernel module loader to create function pointers
for the kernel fixup routines of get_user() and put_user(). Changing
the external reference from function type to int type fixes this.

This unbreaks exception handling for get_user() and put_user() when
called from a kernel module.

Signed-off-by: Helge Deller <deller@gmx.de>
Cc: stable@vger.kernel.org
Signed-off-by: Willy Tarreau <w@1wt.eu>
2016-06-07 10:42:48 +02:00
Helge Deller 4fdefe95e6 parisc: Fix __ARCH_SI_PREAMBLE_SIZE
commit e60fc5aa608eb38b47ba4ee058f306f739eb70a0 upstream.

On a 64bit kernel build the compiler aligns the _sifields union in the
struct siginfo_t on a 64bit address. The __ARCH_SI_PREAMBLE_SIZE define
compensates for this alignment and thus fixes the wait testcase of the
strace package.

The symptoms of a wrong __ARCH_SI_PREAMBLE_SIZE value is that
_sigchld.si_stime variable is missed to be copied and thus after a
copy_siginfo() will have uninitialized values.

Signed-off-by: Helge Deller <deller@gmx.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-02-19 14:22:38 -08:00
Helge Deller fedff89dca parisc: Fix syscall restarts
commit 71a71fb5374a23be36a91981b5614590b9e722c3 upstream.

On parisc syscalls which are interrupted by signals sometimes failed to
restart and instead returned -ENOSYS which in the worst case lead to
userspace crashes.
A similiar problem existed on MIPS and was fixed by commit e967ef02
("MIPS: Fix restart of indirect syscalls").

On parisc the current syscall restart code assumes that all syscall
callers load the syscall number in the delay slot of the ble
instruction. That's how it is e.g. done in the unistd.h header file:
	ble 0x100(%sr2, %r0)
	ldi #syscall_nr, %r20
Because of that assumption the current code never restored %r20 before
returning to userspace.

This assumption is at least not true for code which uses the glibc
syscall() function, which instead uses this syntax:
	ble 0x100(%sr2, %r0)
	copy regX, %r20
where regX depend on how the compiler optimizes the code and register
usage.

This patch fixes this problem by adding code to analyze how the syscall
number is loaded in the delay branch and - if needed - copy the syscall
number to regX prior returning to userspace for the syscall restart.

Signed-off-by: Helge Deller <deller@gmx.de>
Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-02-19 14:22:38 -08:00
Helge Deller d2bb787af4 parisc: Drop unused MADV_xxxK_PAGES flags from asm/mman.h
commit dcbf0d299c00ed4f82ea8d6e359ad88a5182f9b8 upstream.

Drop the MADV_xxK_PAGES flags, which were never used and were from a proposed
API which was never integrated into the generic Linux kernel code.

Signed-off-by: Helge Deller <deller@gmx.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-02-19 14:22:38 -08:00
Helge Deller 706ad8dcb5 parisc: Filter out spurious interrupts in PA-RISC irq handler
commit b1b4e435e4ef7de77f07bf2a42c8380b960c2d44 upstream.

When detecting a serial port on newer PA-RISC machines (with iosapic) we have a
long way to go to find the right IRQ line, registering it, then registering the
serial port and the irq handler for the serial port. During this phase spurious
interrupts for the serial port may happen which then crashes the kernel because
the action handler might not have been set up yet.

So, basically it's a race condition between the serial port hardware and the
CPU which sets up the necessary fields in the irq sructs. The main reason for
this race is, that we unmask the serial port irqs too early without having set
up everything properly before (which isn't easily possible because we need the
IRQ number to register the serial ports).

This patch is a work-around for this problem. It adds checks to the CPU irq
handler to verify if the IRQ action field has been initialized already. If not,
we just skip this interrupt (which isn't critical for a serial port at bootup).
The real fix would probably involve rewriting all PA-RISC specific IRQ code
(for CPU, IOSAPIC, GSC and EISA) to use IRQ domains with proper parenting of
the irq chips and proper irq enabling along this line.

This bug has been in the PA-RISC port since the beginning, but the crashes
happened very rarely with currently used hardware.  But on the latest machine
which I bought (a C8000 workstation), which uses the fastest CPUs (4 x PA8900,
1GHz) and which has the largest possible L1 cache size (64MB each), the kernel
crashed at every boot because of this race. So, without this patch the machine
would currently be unuseable.

For the record, here is the flow logic:
1. serial_init_chip() in 8250_gsc.c calls iosapic_serial_irq().
2. iosapic_serial_irq() calls txn_alloc_irq() to find the irq.
3. iosapic_serial_irq() calls cpu_claim_irq() to register the CPU irq
4. cpu_claim_irq() unmasks the CPU irq (which it shouldn't!)
5. serial_init_chip() then registers the 8250 port.
Problems:
- In step 4 the CPU irq shouldn't have been registered yet, but after step 5
- If serial irq happens between 4 and 5 have finished, the kernel will crash

Signed-off-by: Helge Deller <deller@gmx.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-10-01 12:07:32 +02:00
Kaushal Kumar 4a36e44c45 This is the 3.10.84 stable release
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Merge upstream tag 'v3.10.84' into LA.BR.1.3.3

This merge brings us up-to-date as of upstream tag v3.10.84

* tag 'v3.10.84' (317 commits):
  Linux 3.10.84
  fs: Fix S_NOSEC handling
  KVM: x86: make vapics_in_nmi_mode atomic
  MIPS: Fix KVM guest fixmap address
  x86/PCI: Use host bridge _CRS info on Foxconn K8M890-8237A
  powerpc/perf: Fix book3s kernel to userspace backtraces
  arm: KVM: force execution of HCPTR access on VM exit
  Revert "crypto: talitos - convert to use be16_add_cpu()"
  crypto: talitos - avoid memleak in talitos_alg_alloc()
  sctp: Fix race between OOTB responce and route removal
  packet: avoid out of bounds read in round robin fanout
  packet: read num_members once in packet_rcv_fanout()
  bridge: fix br_stp_set_bridge_priority race conditions
  bridge: fix multicast router rlist endless loop
  sparc: Use GFP_ATOMIC in ldc_alloc_exp_dring() as it can be called in softirq context
  Linux 3.10.83
  bus: mvebu: pass the coherency availability information at init time
  KVM: nSVM: Check for NRIPS support before updating control field
  ARM: clk-imx6q: refine sata's parent
  d_walk() might skip too much
  ipv6: update ip6_rt_last_gc every time GC is run
  ipv6: prevent fib6_run_gc() contention
  xfrm: Increase the garbage collector threshold
  Btrfs: make xattr replace operations atomic
  x86/microcode/intel: Guard against stack overflow in the loader
  fs: take i_mutex during prepare_binprm for set[ug]id executables
  hpsa: add missing pci_set_master in kdump path
  hpsa: refine the pci enable/disable handling
  sb_edac: Fix erroneous bytes->gigabytes conversion
  ACPICA: Utilities: Cleanup to remove useless ACPI_PRINTF/FORMAT_xxx helpers.
  ACPICA: Utilities: Cleanup to convert physical address printing formats.
  __ptrace_may_access() should not deny sub-threads
  include/linux/sched.h: don't use task->pid/tgid in same_thread_group/has_group_leader_pid
  netfilter: Zero the tuple in nfnl_cthelper_parse_tuple()
  netfilter: nfnetlink_cthelper: Remove 'const' and '&' to avoid warnings
  config: Enable NEED_DMA_MAP_STATE by default when SWIOTLB is selected
  get rid of s_files and files_lock
  fput: turn "list_head delayed_fput_list" into llist_head
  Linux 3.10.82
  lpfc: Add iotag memory barrier
  pipe: iovec: Fix memory corruption when retrying atomic copy as non-atomic
  drm/mgag200: Reject non-character-cell-aligned mode widths
  tracing: Have filter check for balanced ops
  crypto: caam - fix RNG buffer cache alignment
  Linux 3.10.81
  btrfs: cleanup orphans while looking up default subvolume
  btrfs: incorrect handling for fiemap_fill_next_extent return
  cfg80211: wext: clear sinfo struct before calling driver
  mm/memory_hotplug.c: set zone->wait_table to null after freeing it
  drm/i915: Fix DDC probe for passive adapters
  pata_octeon_cf: fix broken build
  ozwpan: unchecked signed subtraction leads to DoS
  ozwpan: divide-by-zero leading to panic
  ozwpan: Use proper check to prevent heap overflow
  MIPS: Fix enabling of DEBUG_STACKOVERFLOW
  ring-buffer-benchmark: Fix the wrong sched_priority of producer
  USB: serial: ftdi_sio: Add support for a Motion Tracker Development Board
  USB: cp210x: add ID for HubZ dual ZigBee and Z-Wave dongle
  block: fix ext_dev_lock lockdep report
  Input: elantech - fix detection of touchpads where the revision matches a known rate
  ALSA: usb-audio: add MAYA44 USB+ mixer control names
  ALSA: usb-audio: Add mic volume fix quirk for Logitech Quickcam Fusion
  ALSA: hda/realtek - Add a fixup for another Acer Aspire 9420
  iio: adis16400: Compute the scan mask from channel indices
  iio: adis16400: Use != channel indices for the two voltage channels
  iio: adis16400: Report pressure channel scale
  xen: netback: read hotplug script once at start of day.
  udp: fix behavior of wrong checksums
  net_sched: invoke ->attach() after setting dev->qdisc
  unix/caif: sk_socket can disappear when state is unlocked
  net: dp83640: fix broken calibration routine.
  bridge: fix parsing of MLDv2 reports
  ipv4: Avoid crashing in ip_error
  net: phy: Allow EEE for all RGMII variants
  Linux 3.10.80
  fs/binfmt_elf.c:load_elf_binary(): return -EINVAL on zero-length mappings
  vfs: read file_handle only once in handle_to_path
  ACPI / init: Fix the ordering of acpi_reserve_resources()
  Input: elantech - fix semi-mt protocol for v3 HW
  rtlwifi: rtl8192cu: Fix kernel deadlock
  md/raid5: don't record new size if resize_stripes fails.
  svcrpc: fix potential GSSX_ACCEPT_SEC_CONTEXT decoding failures
  ARM: fix missing syscall trace exit
  ARM: dts: imx27: only map 4 Kbyte for fec registers
  crypto: s390/ghash - Fix incorrect ghash icv buffer handling.
  rt2x00: add new rt2800usb device DWA 130
  libata: Ignore spurious PHY event on LPM policy change
  libata: Add helper to determine when PHY events should be ignored
  ext4: check for zero length extent explicitly
  ext4: convert write_begin methods to stable_page_writes semantics
  mmc: atmel-mci: fix bad variable type for clkdiv
  powerpc: Align TOC to 256 bytes
  usb: gadget: configfs: Fix interfaces array NULL-termination
  usb-storage: Add NO_WP_DETECT quirk for Lacie 059f:0651 devices
  USB: cp210x: add ID for KCF Technologies PRN device
  USB: pl2303: Remove support for Samsung I330
  USB: visor: Match I330 phone more precisely
  xhci: gracefully handle xhci_irq dead device
  xhci: Solve full event ring by increasing TRBS_PER_SEGMENT to 256
  xhci: fix isoc endpoint dequeue from advancing too far on transaction error
  target/pscsi: Don't leak scsi_host if hba is VIRTUAL_HOST
  ASoC: wm8994: correct BCLK DIV 348 to 384
  ASoC: wm8960: fix "RINPUT3" audio route error
  ASoC: mc13783: Fix wrong mask value used in mc13xxx_reg_rmw() calls
  ALSA: hda - Add headphone quirk for Lifebook E752
  ALSA: hda - Add Conexant codecs CX20721, CX20722, CX20723 and CX20724
  d_walk() might skip too much
  lib: Fix strnlen_user() to not touch memory after specified maximum
  hwmon: (ntc_thermistor) Ensure iio channel is of type IIO_VOLTAGE
  libceph: request a new osdmap if lingering request maps to no osd
  lguest: fix out-by-one error in address checking.
  fs, omfs: add NULL terminator in the end up the token list
  KVM: MMU: fix CR4.SMEP=1, CR0.WP=0 with shadow pages
  net: socket: Fix the wrong returns for recvmsg and sendmsg
  kernel: use the gnu89 standard explicitly
  staging, rtl8192e, LLVMLinux: Remove unused inline prototype
  staging: rtl8712, rtl8712: avoid lots of build warnings
  staging, rtl8192e, LLVMLinux: Change extern inline to static inline
  drm/i915: Fix declaration of intel_gmbus_{is_forced_bit/is_port_falid}
  staging: wlags49_h2: fix extern inline functions
  Linux 3.10.79
  ACPICA: Utilities: Cleanup to enforce ACPI_PHYSADDR_TO_PTR()/ACPI_PTR_TO_PHYSADDR().
  ACPICA: Tables: Change acpi_find_root_pointer() to use acpi_physical_address.
  revert "softirq: Add support for triggering softirq work on softirqs"
  sound/oss: fix deadlock in sequencer_ioctl(SNDCTL_SEQ_OUTOFBAND)
  mmc: card: Don't access RPMB partitions for normal read/write
  pinctrl: Don't just pretend to protect pinctrl_maps, do it for real
  drm/i915: Add missing MacBook Pro models with dual channel LVDS
  ARM: mvebu: armada-xp-openblocks-ax3-4: Disable internal RTC
  ARM: dts: imx23-olinuxino: Fix dr_mode of usb0
  ARM: dts: imx28: Fix AUART4 TX-DMA interrupt name
  ARM: dts: imx25: Add #pwm-cells to pwm4
  gpio: sysfs: fix memory leaks and device hotplug
  gpio: unregister gpiochip device before removing it
  xen/console: Update console event channel on resume
  mm/memory-failure: call shake_page() when error hits thp tail page
  nilfs2: fix sanity check of btree level in nilfs_btree_root_broken()
  ocfs2: dlm: fix race between purge and get lock resource
  Linux 3.10.78
  ARC: signal handling robustify
  UBI: fix soft lockup in ubi_check_volume()
  Drivers: hv: vmbus: Don't wait after requesting offers
  ARM: dts: dove: Fix uart[23] reg property
  staging: panel: fix lcd type
  usb: gadget: printer: enqueue printer's response for setup request
  usb: host: oxu210hp: use new USB_RESUME_TIMEOUT
  3w-sas: fix command completion race
  3w-9xxx: fix command completion race
  3w-xxxx: fix command completion race
  ext4: fix data corruption caused by unwritten and delayed extents
  rbd: end I/O the entire obj_request on error
  serial: of-serial: Remove device_type = "serial" registration
  ALSA: hda - Fix mute-LED fixed mode
  ALSA: emu10k1: Emu10k2 32 bit DMA mode
  ALSA: emu10k1: Fix card shortname string buffer overflow
  ALSA: emux: Fix mutex deadlock in OSS emulation
  ALSA: emux: Fix mutex deadlock at unloading
  ipv4: Missing sk_nulls_node_init() in ping_unhash().
  Linux 3.10.77
  s390: Fix build error
  nosave: consolidate __nosave_{begin,end} in <asm/sections.h>
  memstick: mspro_block: add missing curly braces
  C6x: time: Ensure consistency in __init
  wl18xx: show rx_frames_per_rates as an array as it really is
  lib: memzero_explicit: use barrier instead of OPTIMIZER_HIDE_VAR
  e1000: add dummy allocator to fix race condition between mtu change and netpoll
  ksoftirqd: Enable IRQs and call cond_resched() before poking RCU
  RCU pathwalk breakage when running into a symlink overmounting something
  drm/i915: cope with large i2c transfers
  drm/radeon: fix doublescan modes (v2)
  i2c: core: Export bus recovery functions
  IB/mlx4: Fix WQE LSO segment calculation
  IB/core: don't disallow registering region starting at 0x0
  IB/core: disallow registering 0-sized memory region
  stk1160: Make sure current buffer is released
  mvsas: fix panic on expander attached SATA devices
  Drivers: hv: vmbus: Fix a bug in the error path in vmbus_open()
  xtensa: provide __NR_sync_file_range2 instead of __NR_sync_file_range
  xtensa: xtfpga: fix hardware lockup caused by LCD driver
  ACPICA: Utilities: split IO address types from data type models.
  drivers: parport: Kconfig: exclude arm64 for PARPORT_PC
  scsi: storvsc: Fix a bug in copy_from_bounce_buffer()
  UBI: fix check for "too many bytes"
  UBI: initialize LEB number variable
  UBI: fix out of bounds write
  UBI: account for bitflips in both the VID header and data
  tools/power turbostat: Use $(CURDIR) instead of $(PWD) and add support for O= option in Makefile
  powerpc/perf: Cap 64bit userspace backtraces to PERF_MAX_STACK_DEPTH
  ext4: make fsync to sync parent dir in no-journal for real this time
  arm64: kernel: compiling issue, need delete read_current_timer()
  video: vgacon: Don't build on arm64
  console: Disable VGA text console support on cris
  drivers: parport: Kconfig: exclude h8300 for PARPORT_PC
  parport: disable PC-style parallel port support on cris
  rtlwifi: rtl8192cu: Add new device ID
  rtlwifi: rtl8192cu: Add new USB ID
  ptrace: fix race between ptrace_resume() and wait_task_stopped()
  fs/binfmt_elf.c: fix bug in loading of PIE binaries
  Input: elantech - fix absolute mode setting on some ASUS laptops
  ALSA: emu10k1: don't deadlock in proc-functions
  usb: core: hub: use new USB_RESUME_TIMEOUT
  usb: host: sl811: use new USB_RESUME_TIMEOUT
  usb: host: xhci: use new USB_RESUME_TIMEOUT
  usb: host: isp116x: use new USB_RESUME_TIMEOUT
  usb: host: r8a66597: use new USB_RESUME_TIMEOUT
  usb: define a generic USB_RESUME_TIMEOUT macro
  usb: phy: Find the right match in devm_usb_phy_match
  ARM: S3C64XX: Use fixed IRQ bases to avoid conflicts on Cragganmore
  ARM: 8320/1: fix integer overflow in ELF_ET_DYN_BASE
  power_supply: lp8788-charger: Fix leaked power supply on probe fail
  ring-buffer: Replace this_cpu_*() with __this_cpu_*()
  spi: spidev: fix possible arithmetic overflow for multi-transfer message
  cdc-wdm: fix endianness bug in debug statements
  MIPS: Hibernate: flush TLB entries earlier
  KVM: use slowpath for cross page cached accesses
  s390/hibernate: fix save and restore of kernel text section
  KVM: s390: Zero out current VMDB of STSI before including level3 data.
  usb: gadget: composite: enable BESL support
  Btrfs: fix inode eviction infinite loop after cloning into it
  Btrfs: fix log tree corruption when fs mounted with -o discard
  tcp: avoid looping in tcp_send_fin()
  tcp: fix possible deadlock in tcp_send_fin()
  ip_forward: Drop frames with attached skb->sk
  Linux 3.10.76
  dcache: Fix locking bugs in backported "deal with deadlock in d_walk()"
  arc: mm: Fix build failure
  sb_edac: avoid INTERNAL ERROR message in EDAC with unspecified channel
  x86: mm: move mmap_sem unlock from mm_fault_error() to caller
  vm: make stack guard page errors return VM_FAULT_SIGSEGV rather than SIGBUS
  vm: add VM_FAULT_SIGSEGV handling support
  deal with deadlock in d_walk()
  move d_rcu from overlapping d_child to overlapping d_alias
  kconfig: Fix warning "‘jump’ may be used uninitialized"
  KVM: x86: SYSENTER emulation is broken
  netfilter: conntrack: disable generic tracking for known protocols
  Bluetooth: Ignore isochronous endpoints for Intel USB bootloader
  Bluetooth: Add support for Intel bootloader devices
  Bluetooth: btusb: Add IMC Networks (Broadcom based)
  Bluetooth: Add firmware update for Atheros 0cf3:311f
  Bluetooth: Enable Atheros 0cf3:311e for firmware upload
  mm: Fix NULL pointer dereference in madvise(MADV_WILLNEED) support
  splice: Apply generic position and size checks to each write
  jfs: fix readdir regression
  serial: 8250_dw: Fix deadlock in LCR workaround
  benet: Call dev_kfree_skby_any instead of kfree_skb.
  ixgb: Call dev_kfree_skby_any instead of dev_kfree_skb.
  tg3: Call dev_kfree_skby_any instead of dev_kfree_skb.
  bnx2: Call dev_kfree_skby_any instead of dev_kfree_skb.
  r8169: Call dev_kfree_skby_any instead of dev_kfree_skb.
  8139too: Call dev_kfree_skby_any instead of dev_kfree_skb.
  8139cp: Call dev_kfree_skby_any instead of kfree_skb.
  tcp: tcp_make_synack() should clear skb->tstamp
  tcp: fix FRTO undo on cumulative ACK of SACKed range
  ipv6: Don't reduce hop limit for an interface
  tcp: prevent fetching dst twice in early demux code
  remove extra definitions of U32_MAX
  conditionally define U32_MAX
  Linux 3.10.75
  pagemap: do not leak physical addresses to non-privileged userspace
  console: Fix console name size mismatch
  IB/mlx4: Saturate RoCE port PMA counters in case of overflow
  kernel.h: define u8, s8, u32, etc. limits
  net: llc: use correct size for sysctl timeout entries
  net: rds: use correct size for max unacked packets and bytes
  ipc: fix compat msgrcv with negative msgtyp
  core, nfqueue, openvswitch: fix compilation warning
  media: s5p-mfc: fix mmap support for 64bit arch
  iscsi target: fix oops when adding reject pdu
  ocfs2: _really_ sync the right range
  be2iscsi: Fix kernel panic when device initialization fails
  cifs: fix use-after-free bug in find_writable_file
  usb: xhci: apply XHCI_AVOID_BEI quirk to all Intel xHCI controllers
  cpuidle: ACPI: do not overwrite name and description of C0
  dmaengine: omap-dma: Fix memory leak when terminating running transfer
  iio: imu: Use iio_trigger_get for indio_dev->trig assignment
  iio: inv_mpu6050: Clear timestamps fifo while resetting hardware fifo
  Defer processing of REQ_PREEMPT requests for blocked devices
  USB: ftdi_sio: Use jtag quirk for SNAP Connect E10
  USB: ftdi_sio: Added custom PID for Synapse Wireless product
  radeon: Do not directly dereference pointers to BIOS area.
  writeback: fix possible underflow in write bandwidth calculation
  writeback: add missing INITIAL_JIFFIES init in global_update_bandwidth()
  mm/memory hotplug: postpone the reset of obsolete pgdat
  nbd: fix possible memory leak
  iwlwifi: dvm: run INIT firmware again upon .start()
  IB/uverbs: Prevent integer overflow in ib_umem_get address arithmetic
  IB/core: Avoid leakage from kernel to user space
  tcp: Fix crash in TCP Fast Open
  selinux: fix sel_write_enforce broken return value
  ALSA: hda - Fix headphone pin config for Lifebook T731
  ALSA: usb - Creative USB X-Fi Pro SB1095 volume knob support
  ALSA: hda - Add one more node in the EAPD supporting candidate list
  Linux 3.10.74
  net: ethernet: pcnet32: Setup the SRAM and NOUFLO on Am79C97{3, 5}
  powerpc/mpc85xx: Add ranges to etsec2 nodes
  hfsplus: fix B-tree corruption after insertion at position 0
  dm: hold suspend_lock while suspending device during device deletion
  vt6655: RFbSetPower fix missing rate RATE_12M
  perf: Fix irq_work 'tail' recursion
  Revert "iwlwifi: mvm: fix failure path when power_update fails in add_interface"
  mac80211: drop unencrypted frames in mesh fwding
  mac80211: disable u-APSD queues by default
  nl80211: ignore HT/VHT capabilities without QoS/WMM
  tcm_qla2xxx: Fix incorrect use of __transport_register_session
  tcm_fc: missing curly braces in ft_invl_hw_context()
  ASoC: wm8955: Fix wrong value references for boolean kctl
  ASoC: adav80x: Fix wrong value references for boolean kctl
  ASoC: ak4641: Fix wrong value references for boolean kctl
  ASoC: wm8904: Fix wrong value references for boolean kctl
  ASoC: wm8903: Fix wrong value references for boolean kctl
  ASoC: wm2000: Fix wrong value references for boolean kctl
  ASoC: wm8731: Fix wrong value references for boolean kctl
  ASoC: tas5086: Fix wrong value references for boolean kctl
  ASoC: wm8960: Fix wrong value references for boolean kctl
  ASoC: cs4271: Fix wrong value references for boolean kctl
  ASoC: sgtl5000: remove useless register write clearing CHRGPUMP_POWERUP

Change-Id: Ib7976ee2c7224e39074157e28db4158db40b00db
Signed-off-by: Kaushal Kumar <kaushalk@codeaurora.org>
2015-09-30 13:25:40 +05:30
Al Viro dc404456eb constify ->actor
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Git-commit: b2497fc3057ae27db9aa29579f16ae5afb6d6d08
Git-repo: https://android.googlesource.com/kernel/common.git
Signed-off-by: Kaushal Kumar <kaushalk@codeaurora.org>
2015-09-16 18:20:09 +05:30
Al Viro bf531f8b92 introduce ->iterate(), ctx->pos, dir_emit()
New method - ->iterate(file, ctx).  That's the replacement for ->readdir();
it takes callback from ctx->actor, uses ctx->pos instead of file->f_pos and
calls dir_emit(ctx, ...) instead of filldir(data, ...).  It does *not*
update file->f_pos (or look at it, for that matter); iterate_dir() does the
update.

Note that dir_emit() takes the offset from ctx->pos (and eventually
filldir_t will lose that argument).

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Git-commit: 83fd542759010949ac7d9638b615fac1bb9744e1
Git-repo: https://android.googlesource.com/kernel/common.git
Signed-off-by: Kaushal Kumar <kaushalk@codeaurora.org>
2015-09-16 18:20:09 +05:30
Al Viro c4696ecbc4 introduce iterate_dir() and dir_context
iterate_dir(): new helper, replacing vfs_readdir().

struct dir_context: contains the readdir callback (and will get more stuff
in it), embedded into whatever data that callback wants to deal with;
eventually, we'll be passing it to ->readdir() replacement instead of
(data,filldir) pair.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Git-commit: c301a0e047e401d41b26db1009d08e088ae2365a
Git-repo: https://android.googlesource.com/kernel/common.git
Signed-off-by: Kaushal Kumar <kaushalk@codeaurora.org>
2015-09-16 18:20:08 +05:30
Linus Torvalds 0c42d1fbb3 vm: add VM_FAULT_SIGSEGV handling support
commit 33692f27597fcab536d7cbbcc8f52905133e4aa7 upstream.

The core VM already knows about VM_FAULT_SIGBUS, but cannot return a
"you should SIGSEGV" error, because the SIGSEGV case was generally
handled by the caller - usually the architecture fault handler.

That results in lots of duplication - all the architecture fault
handlers end up doing very similar "look up vma, check permissions, do
retries etc" - but it generally works.  However, there are cases where
the VM actually wants to SIGSEGV, and applications _expect_ SIGSEGV.

In particular, when accessing the stack guard page, libsigsegv expects a
SIGSEGV.  And it usually got one, because the stack growth is handled by
that duplicated architecture fault handler.

However, when the generic VM layer started propagating the error return
from the stack expansion in commit fee7e49d4514 ("mm: propagate error
from stack expansion even for guard page"), that now exposed the
existing VM_FAULT_SIGBUS result to user space.  And user space really
expected SIGSEGV, not SIGBUS.

To fix that case, we need to add a VM_FAULT_SIGSEGV, and teach all those
duplicate architecture fault handlers about it.  They all already have
the code to handle SIGSEGV, so it's about just tying that new return
value to the existing code, but it's all a bit annoying.

This is the mindless minimal patch to do this.  A more extensive patch
would be to try to gather up the mostly shared fault handling logic into
one generic helper routine, and long-term we really should do that
cleanup.

Just from this patch, you can generally see that most architectures just
copied (directly or indirectly) the old x86 way of doing things, but in
the meantime that original x86 model has been improved to hold the VM
semaphore for shorter times etc and to handle VM_FAULT_RETRY and other
"newer" things, so it would be a good idea to bring all those
improvements to the generic case and teach other architectures about
them too.

Reported-and-tested-by: Takashi Iwai <tiwai@suse.de>
Tested-by: Jan Engelhardt <jengelh@inai.de>
Acked-by: Heiko Carstens <heiko.carstens@de.ibm.com> # "s390 still compiles and boots"
Cc: linux-arch@vger.kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
[shengyong: Backport to 3.10
 - adjust context
 - ignore modification for arch nios2, because 3.10 does not support it
 - ignore modification for driver lustre, because 3.10 does not support it
 - ignore VM_FAULT_FALLBACK in VM_FAULT_ERROR, becase 3.10 does not support
   this flag
 - add SIGSEGV handling to powerpc/cell spu_fault.c, because 3.10 does not
   separate it to copro_fault.c
 - add SIGSEGV handling in mm/memory.c, because 3.10 does not separate it
   to gup.c
]
Signed-off-by: Sheng Yong <shengyong1@huawei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-04-29 10:34:00 +02:00
Ian Maund 8b08aa9e75 This is the 3.10.67 stable release
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Merge commit 'v3.10.67' into msm-3.10

This merge brings us up to date with upstream kernel.org tag v3.10.67.
It also contains changes to allow forbidden warnings introduced in
the commit 'core, nfqueue, openvswitch: Orphan frags in skb_zerocopy
and handle errors'. Once upstream has corrected these warnings, the
changes to scripts/gcc-wrapper.py, in this commit, can be reverted.

* commit 'v3.10.67' (915 commits)
  Linux 3.10.67
  md/raid5: fetch_block must fetch all the blocks handle_stripe_dirtying wants.
  ext4: fix warning in ext4_da_update_reserve_space()
  quota: provide interface for readding allocated space into reserved space
  crypto: add missing crypto module aliases
  crypto: include crypto- module prefix in template
  crypto: prefix module autoloading with "crypto-"
  drbd: merge_bvec_fn: properly remap bvm->bi_bdev
  Revert "swiotlb-xen: pass dev_addr to swiotlb_tbl_unmap_single"
  ipvs: uninitialized data with IP_VS_IPV6
  KEYS: close race between key lookup and freeing
  sata_dwc_460ex: fix resource leak on error path
  x86/asm/traps: Disable tracing and kprobes in fixup_bad_iret and sync_regs
  x86, tls: Interpret an all-zero struct user_desc as "no segment"
  x86, tls, ldt: Stop checking lm in LDT_empty
  x86/tsc: Change Fast TSC calibration failed from error to info
  x86, hyperv: Mark the Hyper-V clocksource as being continuous
  clocksource: exynos_mct: Fix bitmask regression for exynos4_mct_write
  can: dev: fix crtlmode_supported check
  bus: mvebu-mbus: fix support of MBus window 13
  ARM: dts: imx25: Fix PWM "per" clocks
  time: adjtimex: Validate the ADJ_FREQUENCY values
  time: settimeofday: Validate the values of tv from user
  dm cache: share cache-metadata object across inactive and active DM tables
  ipr: wait for aborted command responses
  drm/i915: Fix mutex->owner inspection race under DEBUG_MUTEXES
  scripts/recordmcount.pl: There is no -m32 gcc option on Super-H anymore
  ALSA: usb-audio: Add mic volume fix quirk for Logitech Webcam C210
  libata: prevent HSM state change race between ISR and PIO
  pinctrl: Fix two deadlocks
  gpio: sysfs: fix gpio device-attribute leak
  gpio: sysfs: fix gpio-chip device-attribute leak
  Linux 3.10.66
  s390/3215: fix tty output containing tabs
  s390/3215: fix hanging console issue
  fsnotify: next_i is freed during fsnotify_unmount_inodes.
  netfilter: ipset: small potential read beyond the end of buffer
  mmc: sdhci: Fix sleep in atomic after inserting SD card
  LOCKD: Fix a race when initialising nlmsvc_timeout
  x86, um: actually mark system call tables readonly
  um: Skip futex_atomic_cmpxchg_inatomic() test
  decompress_bunzip2: off by one in get_next_block()
  ARM: shmobile: sh73a0 legacy: Set .control_parent for all irqpin instances
  ARM: omap5/dra7xx: Fix frequency typos
  ARM: clk-imx6q: fix video divider for rev T0 1.0
  ARM: imx6q: drop unnecessary semicolon
  ARM: dts: imx25: Fix the SPI1 clocks
  Input: I8042 - add Acer Aspire 7738 to the nomux list
  Input: i8042 - reset keyboard to fix Elantech touchpad detection
  can: kvaser_usb: Don't send a RESET_CHIP for non-existing channels
  can: kvaser_usb: Reset all URB tx contexts upon channel close
  can: kvaser_usb: Don't free packets when tight on URBs
  USB: keyspan: fix null-deref at probe
  USB: cp210x: add IDs for CEL USB sticks and MeshWorks devices
  USB: cp210x: fix ID for production CEL MeshConnect USB Stick
  usb: dwc3: gadget: Stop TRB preparation after limit is reached
  usb: dwc3: gadget: Fix TRB preparation during SG
  OHCI: add a quirk for ULi M5237 blocking on reset
  gpiolib: of: Correct error handling in of_get_named_gpiod_flags
  NFSv4.1: Fix client id trunking on Linux
  ftrace/jprobes/x86: Fix conflict between jprobes and function graph tracing
  vfio-pci: Fix the check on pci device type in vfio_pci_probe()
  uvcvideo: Fix destruction order in uvc_delete()
  smiapp: Take mutex during PLL update in sensor initialisation
  af9005: fix kernel panic on init if compiled without IR
  smiapp-pll: Correct clock debug prints
  video/logo: prevent use of logos after they have been freed
  storvsc: ring buffer failures may result in I/O freeze
  iscsi-target: Fail connection on short sendmsg writes
  hp_accel: Add support for HP ZBook 15
  cfg80211: Fix 160 MHz channels with 80+80 and 160 MHz drivers
  ARC: [nsimosci] move peripherals to match model to FPGA
  drm/i915: Force the CS stall for invalidate flushes
  drm/i915: Invalidate media caches on gen7
  drm/radeon: properly filter DP1.2 4k modes on non-DP1.2 hw
  drm/radeon: check the right ring in radeon_evict_flags()
  drm/vmwgfx: Fix fence event code
  enic: fix rx skb checksum
  alx: fix alx_poll()
  tcp: Do not apply TSO segment limit to non-TSO packets
  tg3: tg3_disable_ints using uninitialized mailbox value to disable interrupts
  netlink: Don't reorder loads/stores before marking mmap netlink frame as available
  netlink: Always copy on mmap TX.
  Linux 3.10.65
  mm: Don't count the stack guard page towards RLIMIT_STACK
  mm: propagate error from stack expansion even for guard page
  mm, vmscan: prevent kswapd livelock due to pfmemalloc-throttled process being killed
  perf session: Do not fail on processing out of order event
  perf: Fix events installation during moving group
  perf/x86/intel/uncore: Make sure only uncore events are collected
  Btrfs: don't delay inode ref updates during log replay
  ARM: mvebu: disable I/O coherency on non-SMP situations on Armada 370/375/38x/XP
  scripts/kernel-doc: don't eat struct members with __aligned
  nilfs2: fix the nilfs_iget() vs. nilfs_new_inode() races
  nfsd4: fix xdr4 inclusion of escaped char
  fs: nfsd: Fix signedness bug in compare_blob
  serial: samsung: wait for transfer completion before clock disable
  writeback: fix a subtle race condition in I_DIRTY clearing
  cdc-acm: memory leak in error case
  genhd: check for int overflow in disk_expand_part_tbl()
  USB: cdc-acm: check for valid interfaces
  ALSA: hda - Fix wrong gpio_dir & gpio_mask hint setups for IDT/STAC codecs
  ALSA: hda - using uninitialized data
  ALSA: usb-audio: extend KEF X300A FU 10 tweak to Arcam rPAC
  driver core: Fix unbalanced device reference in drivers_probe
  x86, vdso: Use asm volatile in __getcpu
  x86_64, vdso: Fix the vdso address randomization algorithm
  HID: Add a new id 0x501a for Genius MousePen i608X
  HID: add battery quirk for USB_DEVICE_ID_APPLE_ALU_WIRELESS_2011_ISO keyboard
  HID: roccat: potential out of bounds in pyra_sysfs_write_settings()
  HID: i2c-hid: prevent buffer overflow in early IRQ
  HID: i2c-hid: fix race condition reading reports
  iommu/vt-d: Fix an off-by-one bug in __domain_mapping()
  UBI: Fix double free after do_sync_erase()
  UBI: Fix invalid vfree()
  pstore-ram: Allow optional mapping with pgprot_noncached
  pstore-ram: Fix hangs by using write-combine mappings
  PCI: Restore detection of read-only BARs
  ASoC: dwc: Ensure FIFOs are flushed to prevent channel swap
  ASoC: max98090: Fix ill-defined sidetone route
  ASoC: sigmadsp: Refuse to load firmware files with a non-supported version
  ath5k: fix hardware queue index assignment
  swiotlb-xen: pass dev_addr to swiotlb_tbl_unmap_single
  can: peak_usb: fix memset() usage
  can: peak_usb: fix cleanup sequence order in case of error during init
  ath9k: fix BE/BK queue order
  ath9k_hw: fix hardware queue allocation
  ocfs2: fix journal commit deadlock
  Linux 3.10.64
  Btrfs: fix fs corruption on transaction abort if device supports discard
  Btrfs: do not move em to modified list when unpinning
  eCryptfs: Remove buggy and unnecessary write in file name decode routine
  eCryptfs: Force RO mount when encrypted view is enabled
  udf: Verify symlink size before loading it
  exit: pidns: alloc_pid() leaks pid_namespace if child_reaper is exiting
  ncpfs: return proper error from NCP_IOC_SETROOT ioctl
  crypto: af_alg - fix backlog handling
  userns: Unbreak the unprivileged remount tests
  userns: Allow setting gid_maps without privilege when setgroups is disabled
  userns: Add a knob to disable setgroups on a per user namespace basis
  userns: Rename id_map_mutex to userns_state_mutex
  userns: Only allow the creator of the userns unprivileged mappings
  userns: Check euid no fsuid when establishing an unprivileged uid mapping
  userns: Don't allow unprivileged creation of gid mappings
  userns: Don't allow setgroups until a gid mapping has been setablished
  userns: Document what the invariant required for safe unprivileged mappings.
  groups: Consolidate the setgroups permission checks
  umount: Disallow unprivileged mount force
  mnt: Update unprivileged remount test
  mnt: Implicitly add MNT_NODEV on remount when it was implicitly added by mount
  mac80211: free management frame keys when removing station
  mac80211: fix multicast LED blinking and counter
  KEYS: Fix stale key registration at error path
  isofs: Fix unchecked printing of ER records
  x86/tls: Don't validate lm in set_thread_area() after all
  dm space map metadata: fix sm_bootstrap_get_nr_blocks()
  dm bufio: fix memleak when using a dm_buffer's inline bio
  nfs41: fix nfs4_proc_layoutget error handling
  megaraid_sas: corrected return of wait_event from abort frame path
  mmc: block: add newline to sysfs display of force_ro
  mfd: tc6393xb: Fail ohci suspend if full state restore is required
  md/bitmap: always wait for writes on unplug.
  x86, kvm: Clear paravirt_enabled on KVM guests for espfix32's benefit
  x86_64, switch_to(): Load TLS descriptors before switching DS and ES
  x86/tls: Disallow unusual TLS segments
  x86/tls: Validate TLS entries to protect espfix
  isofs: Fix infinite looping over CE entries
  Linux 3.10.63
  ALSA: usb-audio: Don't resubmit pending URBs at MIDI error recovery
  powerpc: 32 bit getcpu VDSO function uses 64 bit instructions
  ARM: sched_clock: Load cycle count after epoch stabilizes
  igb: bring link up when PHY is powered up
  ext2: Fix oops in ext2_get_block() called from ext2_quota_write()
  nEPT: Nested INVEPT
  net: sctp: use MAX_HEADER for headroom reserve in output path
  net: mvneta: fix Tx interrupt delay
  rtnetlink: release net refcnt on error in do_setlink()
  net/mlx4_core: Limit count field to 24 bits in qp_alloc_res
  tg3: fix ring init when there are more TX than RX channels
  ipv6: gre: fix wrong skb->protocol in WCCP
  sata_fsl: fix error handling of irq_of_parse_and_map
  ahci: disable MSI on SAMSUNG 0xa800 SSD
  AHCI: Add DeviceIDs for Sunrise Point-LP SATA controller
  media: smiapp: Only some selection targets are settable
  drm/i915: Unlock panel even when LVDS is disabled
  drm/radeon: kernel panic in drm_calc_vbltimestamp_from_scanoutpos with 3.18.0-rc6
  i2c: davinci: generate STP always when NACK is received
  i2c: omap: fix i207 errata handling
  i2c: omap: fix NACK and Arbitration Lost irq handling
  xen-netfront: Remove BUGs on paged skb data which crosses a page boundary
  mm: fix swapoff hang after page migration and fork
  mm: frontswap: invalidate expired data on a dup-store failure
  Linux 3.10.62
  nfsd: Fix ACL null pointer deref
  powerpc/powernv: Honor the generic "no_64bit_msi" flag
  bnx2fc: do not add shared skbs to the fcoe_rx_list
  nfsd4: fix leak of inode reference on delegation failure
  nfsd: Fix slot wake up race in the nfsv4.1 callback code
  rt2x00: do not align payload on modern H/W
  can: dev: avoid calling kfree_skb() from interrupt context
  spi: dw: Fix dynamic speed change.
  iser-target: Handle DEVICE_REMOVAL event on network portal listener correctly
  target: Don't call TFO->write_pending if data_length == 0
  srp-target: Retry when QP creation fails with ENOMEM
  Input: xpad - use proper endpoint type
  ARM: 8222/1: mvebu: enable strex backoff delay
  ARM: 8216/1: xscale: correct auxiliary register in suspend/resume
  ALSA: usb-audio: Add ctrl message delay quirk for Marantz/Denon devices
  can: esd_usb2: fix memory leak on disconnect
  USB: xhci: don't start a halted endpoint before its new dequeue is set
  usb-quirks: Add reset-resume quirk for MS Wireless Laser Mouse 6000
  usb: serial: ftdi_sio: add PIDs for Matrix Orbital products
  USB: serial: cp210x: add IDs for CEL MeshConnect USB Stick
  USB: keyspan: fix tty line-status reporting
  USB: keyspan: fix overrun-error reporting
  USB: ssu100: fix overrun-error reporting
  iio: Fix IIO_EVENT_CODE_EXTRACT_DIR bit mask
  powerpc/pseries: Fix endiannes issue in RTAS call from xmon
  powerpc/pseries: Honor the generic "no_64bit_msi" flag
  of/base: Fix PowerPC address parsing hack
  ASoC: wm_adsp: Avoid attempt to free buffers that might still be in use
  ASoC: sgtl5000: Fix SMALL_POP bit definition
  PCI/MSI: Add device flag indicating that 64-bit MSIs don't work
  ipx: fix locking regression in ipx_sendmsg and ipx_recvmsg
  pptp: fix stack info leak in pptp_getname()
  qmi_wwan: Add support for HP lt4112 LTE/HSPA+ Gobi 4G Modem
  ieee802154: fix error handling in ieee802154fake_probe()
  ipv4: Fix incorrect error code when adding an unreachable route
  inetdevice: fixed signed integer overflow
  sparc64: Fix constraints on swab helpers.
  uprobes, x86: Fix _TIF_UPROBE vs _TIF_NOTIFY_RESUME
  x86, mm: Set NX across entire PMD at boot
  x86: Require exact match for 'noxsave' command line option
  x86_64, traps: Rework bad_iret
  x86_64, traps: Stop using IST for #SS
  x86_64, traps: Fix the espfix64 #DF fixup and rewrite it in C
  MIPS: Loongson: Make platform serial setup always built-in.
  MIPS: oprofile: Fix backtrace on 64-bit kernel
  Linux 3.10.61
  mm: memcg: handle non-error OOM situations more gracefully
  mm: memcg: do not trap chargers with full callstack on OOM
  mm: memcg: rework and document OOM waiting and wakeup
  mm: memcg: enable memcg OOM killer only for user faults
  x86: finish user fault error path with fatal signal
  arch: mm: pass userspace fault flag to generic fault handler
  arch: mm: do not invoke OOM killer on kernel fault OOM
  arch: mm: remove obsolete init OOM protection
  mm: invoke oom-killer from remaining unconverted page fault handlers
  net: sctp: fix skb_over_panic when receiving malformed ASCONF chunks
  net: sctp: fix panic on duplicate ASCONF chunks
  net: sctp: fix remote memory pressure from excessive queueing
  KVM: x86: Don't report guest userspace emulation error to userspace
  SCSI: hpsa: fix a race in cmd_free/scsi_done
  net/mlx4_en: Fix BlueFlame race
  ARM: Correct BUG() assembly to ensure it is endian-agnostic
  perf/x86/intel: Use proper dTLB-load-misses event on IvyBridge
  mei: bus: fix possible boundaries violation
  perf: Handle compat ioctl
  MIPS: Fix forgotten preempt_enable() when CPU has inclusive pcaches
  dell-wmi: Fix access out of memory
  ARM: probes: fix instruction fetch order with <asm/opcodes.h>
  br: fix use of ->rx_handler_data in code executed on non-rx_handler path
  netfilter: nf_nat: fix oops on netns removal
  netfilter: xt_bpf: add mising opaque struct sk_filter definition
  netfilter: nf_log: release skbuff on nlmsg put failure
  netfilter: nfnetlink_log: fix maximum packet length logged to userspace
  netfilter: nf_log: account for size of NLMSG_DONE attribute
  ipc: always handle a new value of auto_msgmni
  clocksource: Remove "weak" from clocksource_default_clock() declaration
  kgdb: Remove "weak" from kgdb_arch_pc() declaration
  media: ttusb-dec: buffer overflow in ioctl
  NFSv4: Fix races between nfs_remove_bad_delegation() and delegation return
  nfs: Fix use of uninitialized variable in nfs_getattr()
  NFS: Don't try to reclaim delegation open state if recovery failed
  NFSv4: Ensure that we remove NFSv4.0 delegations when state has expired
  Input: alps - allow up to 2 invalid packets without resetting device
  Input: alps - ignore potential bare packets when device is out of sync
  dm raid: ensure superblock's size matches device's logical block size
  dm btree: fix a recursion depth bug in btree walking code
  block: Fix computation of merged request priority
  parisc: Use compat layer for msgctl, shmat, shmctl and semtimedop syscalls
  scsi: only re-lock door after EH on devices that were reset
  nfs: fix pnfs direct write memory leak
  firewire: cdev: prevent kernel stack leaking into ioctl arguments
  arm64: __clear_user: handle exceptions on strb
  ARM: 8198/1: make kuser helpers depend on MMU
  drm/radeon: add missing crtc unlock when setting up the MC
  mac80211: fix use-after-free in defragmentation
  macvtap: Fix csum_start when VLAN tags are present
  iwlwifi: configure the LTR
  libceph: do not crash on large auth tickets
  xtensa: re-wire umount syscall to sys_oldumount
  ALSA: usb-audio: Fix memory leak in FTU quirk
  ahci: disable MSI instead of NCQ on Samsung pci-e SSDs on macbooks
  ahci: Add Device IDs for Intel Sunrise Point PCH
  audit: keep inode pinned
  x86, x32, audit: Fix x32's AUDIT_ARCH wrt audit
  sparc32: Implement xchg and atomic_xchg using ATOMIC_HASH locks
  sparc64: Do irq_{enter,exit}() around generic_smp_call_function*().
  sparc64: Fix crashes in schizo_pcierr_intr_other().
  sunvdc: don't call VD_OP_GET_VTOC
  vio: fix reuse of vio_dring slot
  sunvdc: limit each sg segment to a page
  sunvdc: compute vdisk geometry from capacity
  sunvdc: add cdrom and v1.1 protocol support
  net: sctp: fix memory leak in auth key management
  net: sctp: fix NULL pointer dereference in af->from_addr_param on malformed packet
  gre6: Move the setting of dev->iflink into the ndo_init functions.
  ip6_tunnel: Use ip6_tnl_dev_init as the ndo_init function.
  Linux 3.10.60
  libceph: ceph-msgr workqueue needs a resque worker
  Btrfs: fix kfree on list_head in btrfs_lookup_csums_range error cleanup
  of: Fix overflow bug in string property parsing functions
  sysfs: driver core: Fix glue dir race condition by gdp_mutex
  i2c: at91: don't account as iowait
  acer-wmi: Add acpi_backlight=video quirk for the Acer KAV80
  rbd: Fix error recovery in rbd_obj_read_sync()
  drm/radeon: remove invalid pci id
  usb: gadget: udc: core: fix kernel oops with soft-connect
  usb: gadget: function: acm: make f_acm pass USB20CV Chapter9
  usb: dwc3: gadget: fix set_halt() bug with pending transfers
  crypto: algif - avoid excessive use of socket buffer in skcipher
  mm: Remove false WARN_ON from pagecache_isize_extended()
  x86, apic: Handle a bad TSC more gracefully
  posix-timers: Fix stack info leak in timer_create()
  mac80211: fix typo in starting baserate for rts_cts_rate_idx
  PM / Sleep: fix recovery during resuming from hibernation
  tty: Fix high cpu load if tty is unreleaseable
  quota: Properly return errors from dquot_writeback_dquots()
  ext3: Don't check quota format when there are no quota files
  nfsd4: fix crash on unknown operation number
  cpc925_edac: Report UE events properly
  e7xxx_edac: Report CE events properly
  i3200_edac: Report CE events properly
  i82860_edac: Report CE events properly
  scsi: Fix error handling in SCSI_IOCTL_SEND_COMMAND
  lib/bitmap.c: fix undefined shift in __bitmap_shift_{left|right}()
  cgroup/kmemleak: add kmemleak_free() for cgroup deallocations.
  usb: Do not allow usb_alloc_streams on unconfigured devices
  USB: opticon: fix non-atomic allocation in write path
  usb-storage: handle a skipped data phase
  spi: pxa2xx: toggle clocks on suspend if not disabled by runtime PM
  spi: pl022: Fix incorrect dma_unmap_sg
  usb: dwc3: gadget: Properly initialize LINK TRB
  wireless: rt2x00: add new rt2800usb device
  USB: option: add Haier CE81B CDMA modem
  usb: option: add support for Telit LE910
  USB: cdc-acm: only raise DTR on transitions from B0
  USB: cdc-acm: add device id for GW Instek AFG-2225
  usb: serial: ftdi_sio: add "bricked" FTDI device PID
  usb: serial: ftdi_sio: add Awinda Station and Dongle products
  USB: serial: cp210x: add Silicon Labs 358x VID and PID
  serial: Fix divide-by-zero fault in uart_get_divisor()
  staging:iio:ade7758: Remove "raw" from channel name
  staging:iio:ade7758: Fix check if channels are enabled in prenable
  staging:iio:ade7758: Fix NULL pointer deref when enabling buffer
  staging:iio:ad5933: Drop "raw" from channel names
  staging:iio:ad5933: Fix NULL pointer deref when enabling buffer
  OOM, PM: OOM killed task shouldn't escape PM suspend
  freezer: Do not freeze tasks killed by OOM killer
  ext4: fix oops when loading block bitmap failed
  cpufreq: intel_pstate: Fix setting max_perf_pct in performance policy
  ext4: fix overflow when updating superblock backups after resize
  ext4: check s_chksum_driver when looking for bg csum presence
  ext4: fix reservation overflow in ext4_da_write_begin
  ext4: add ext4_iget_normal() which is to be used for dir tree lookups
  ext4: grab missed write_count for EXT4_IOC_SWAP_BOOT
  ext4: don't check quota format when there are no quota files
  ext4: check EA value offset when loading
  jbd2: free bh when descriptor block checksum fails
  MIPS: tlbex: Properly fix HUGE TLB Refill exception handler
  target: Fix APTPL metadata handling for dynamic MappedLUNs
  target: Fix queue full status NULL pointer for SCF_TRANSPORT_TASK_SENSE
  qla_target: don't delete changed nacls
  ARC: Update order of registers in KGDB to match GDB 7.5
  ARC: [nsimosci] Allow "headless" models to boot
  KVM: x86: Emulator fixes for eip canonical checks on near branches
  KVM: x86: Fix wrong masking on relative jump/call
  kvm: x86: don't kill guest on unknown exit reason
  KVM: x86: Check non-canonical addresses upon WRMSR
  KVM: x86: Improve thread safety in pit
  KVM: x86: Prevent host from panicking on shared MSR writes.
  kvm: fix excessive pages un-pinning in kvm_iommu_map error path.
  media: tda7432: Fix setting TDA7432_MUTE bit for TDA7432_RF register
  media: ds3000: fix LNB supply voltage on Tevii S480 on initialization
  media: em28xx-v4l: give back all active video buffers to the vb2 core properly on streaming stop
  media: v4l2-common: fix overflow in v4l_bound_align_image()
  drm/nouveau/bios: memset dcb struct to zero before parsing
  drm/tilcdc: Fix the error path in tilcdc_load()
  drm/ast: Fix HW cursor image
  Input: i8042 - quirks for Fujitsu Lifebook A544 and Lifebook AH544
  Input: i8042 - add noloop quirk for Asus X750LN
  framebuffer: fix border color
  modules, lock around setting of MODULE_STATE_UNFORMED
  dm log userspace: fix memory leak in dm_ulog_tfr_init failure path
  block: fix alignment_offset math that assumes io_min is a power-of-2
  drbd: compute the end before rb_insert_augmented()
  dm bufio: update last_accessed when relinking a buffer
  virtio_pci: fix virtio spec compliance on restore
  selinux: fix inode security list corruption
  pstore: Fix duplicate {console,ftrace}-efi entries
  mfd: rtsx_pcr: Fix MSI enable error handling
  mnt: Prevent pivot_root from creating a loop in the mount tree
  UBI: add missing kmem_cache_free() in process_pool_aeb error path
  random: add and use memzero_explicit() for clearing data
  crypto: more robust crypto_memneq
  fix misuses of f_count() in ppp and netlink
  kill wbuf_queued/wbuf_dwork_lock
  ALSA: pcm: Zero-clear reserved fields of PCM status ioctl in compat mode
  evm: check xattr value length and type in evm_inode_setxattr()
  x86, pageattr: Prevent overflow in slow_virt_to_phys() for X86_PAE
  x86_64, entry: Fix out of bounds read on sysenter
  x86_64, entry: Filter RFLAGS.NT on entry from userspace
  x86, flags: Rename X86_EFLAGS_BIT1 to X86_EFLAGS_FIXED
  x86, fpu: shift drop_init_fpu() from save_xstate_sig() to handle_signal()
  x86, fpu: __restore_xstate_sig()->math_state_restore() needs preempt_disable()
  x86: Reject x32 executables if x32 ABI not supported
  vfs: fix data corruption when blocksize < pagesize for mmaped data
  UBIFS: fix free log space calculation
  UBIFS: fix a race condition
  UBIFS: remove mst_mutex
  fs: Fix theoretical division by 0 in super_cache_scan().
  fs: make cont_expand_zero interruptible
  mmc: rtsx_pci_sdmmc: fix incorrect last byte in R2 response
  libata-sff: Fix controllers with no ctl port
  pata_serverworks: disable 64-KB DMA transfers on Broadcom OSB4 IDE Controller
  Revert "percpu: free percpu allocation info for uniprocessor system"
  lockd: Try to reconnect if statd has moved
  drivers/net: macvtap and tun depend on INET
  ipv4: dst_entry leak in ip_send_unicast_reply()
  ax88179_178a: fix bonding failure
  ipv4: fix nexthop attlen check in fib_nh_match
  tracing/syscalls: Ignore numbers outside NR_syscalls' range
  Linux 3.10.59
  ecryptfs: avoid to access NULL pointer when write metadata in xattr
  ARM: at91/PMC: don't forget to write PMC_PCDR register to disable clocks
  ALSA: usb-audio: Add support for Steinberg UR22 USB interface
  ALSA: emu10k1: Fix deadlock in synth voice lookup
  ALSA: pcm: use the same dma mmap codepath both for arm and arm64
  arm64: compat: fix compat types affecting struct compat_elf_prpsinfo
  spi: dw-mid: terminate ongoing transfers at exit
  kernel: add support for gcc 5
  fanotify: enable close-on-exec on events' fd when requested in fanotify_init()
  mm: clear __GFP_FS when PF_MEMALLOC_NOIO is set
  Bluetooth: Fix issue with USB suspend in btusb driver
  Bluetooth: Fix HCI H5 corrupted ack value
  rt2800: correct BBP1_TX_POWER_CTRL mask
  PCI: Generate uppercase hex for modalias interface class
  PCI: Increase IBM ipr SAS Crocodile BARs to at least system page size
  iwlwifi: Add missing PCI IDs for the 7260 series
  NFSv4.1: Fix an NFSv4.1 state renewal regression
  NFSv4: fix open/lock state recovery error handling
  NFSv4: Fix lock recovery when CREATE_SESSION/SETCLIENTID_CONFIRM fails
  lzo: check for length overrun in variable length encoding.
  Revert "lzo: properly check for overruns"
  Documentation: lzo: document part of the encoding
  m68k: Disable/restore interrupts in hwreg_present()/hwreg_write()
  Drivers: hv: vmbus: Fix a bug in vmbus_open()
  Drivers: hv: vmbus: Cleanup vmbus_establish_gpadl()
  Drivers: hv: vmbus: Cleanup vmbus_teardown_gpadl()
  Drivers: hv: vmbus: Cleanup vmbus_post_msg()
  firmware_class: make sure fw requests contain a name
  qla2xxx: Use correct offset to req-q-out for reserve calculation
  mptfusion: enable no_write_same for vmware scsi disks
  be2iscsi: check ip buffer before copying
  regmap: fix NULL pointer dereference in _regmap_write/read
  regmap: debugfs: fix possbile NULL pointer dereference
  spi: dw-mid: check that DMA was inited before exit
  spi: dw-mid: respect 8 bit mode
  x86/intel/quark: Switch off CR4.PGE so TLB flush uses CR3 instead
  kvm: don't take vcpu mutex for obviously invalid vcpu ioctls
  KVM: s390: unintended fallthrough for external call
  kvm: x86: fix stale mmio cache bug
  fs: Add a missing permission check to do_umount
  Btrfs: fix race in WAIT_SYNC ioctl
  Btrfs: fix build_backref_tree issue with multiple shared blocks
  Btrfs: try not to ENOSPC on log replay
  Linux 3.10.58
  USB: cp210x: add support for Seluxit USB dongle
  USB: serial: cp210x: added Ketra N1 wireless interface support
  USB: Add device quirk for ASUS T100 Base Station keyboard
  ipv6: reallocate addrconf router for ipv6 address when lo device up
  tcp: fixing TLP's FIN recovery
  sctp: handle association restarts when the socket is closed.
  ip6_gre: fix flowi6_proto value in xmit path
  hyperv: Fix a bug in netvsc_start_xmit()
  tg3: Allow for recieve of full-size 8021AD frames
  tg3: Work around HW/FW limitations with vlan encapsulated frames
  l2tp: fix race while getting PMTU on PPP pseudo-wire
  openvswitch: fix panic with multiple vlan headers
  packet: handle too big packets for PACKET_V3
  tcp: fix tcp_release_cb() to dispatch via address family for mtu_reduced()
  sit: Fix ipip6_tunnel_lookup device matching criteria
  myri10ge: check for DMA mapping errors
  Linux 3.10.57
  cpufreq: ondemand: Change the calculation of target frequency
  cpufreq: Fix wrong time unit conversion
  nl80211: clear skb cb before passing to netlink
  drbd: fix regression 'out of mem, failed to invoke fence-peer helper'
  jiffies: Fix timeval conversion to jiffies
  md/raid5: disable 'DISCARD' by default due to safety concerns.
  media: vb2: fix VBI/poll regression
  mm: numa: Do not mark PTEs pte_numa when splitting huge pages
  mm, thp: move invariant bug check out of loop in __split_huge_page_map
  ring-buffer: Fix infinite spin in reading buffer
  init/Kconfig: Fix HAVE_FUTEX_CMPXCHG to not break up the EXPERT menu
  perf: fix perf bug in fork()
  udf: Avoid infinite loop when processing indirect ICBs
  Linux 3.10.56
  vm_is_stack: use for_each_thread() rather then buggy while_each_thread()
  oom_kill: add rcu_read_lock() into find_lock_task_mm()
  oom_kill: has_intersects_mems_allowed() needs rcu_read_lock()
  oom_kill: change oom_kill.c to use for_each_thread()
  introduce for_each_thread() to replace the buggy while_each_thread()
  kernel/fork.c:copy_process(): unify CLONE_THREAD-or-thread_group_leader code
  arm: multi_v7_defconfig: Enable Zynq UART driver
  ext2: Fix fs corruption in ext2_get_xip_mem()
  serial: 8250_dma: check the result of TX buffer mapping
  ARM: 7748/1: oabi: handle faults when loading swi instruction from userspace
  netfilter: nf_conntrack: avoid large timeout for mid-stream pickup
  PM / sleep: Use valid_state() for platform-dependent sleep states only
  PM / sleep: Add state field to pm_states[] entries
  ipvs: fix ipv6 hook registration for local replies
  ipvs: Maintain all DSCP and ECN bits for ipv6 tun forwarding
  ipvs: avoid netns exit crash on ip_vs_conn_drop_conntrack
  md/raid1: fix_read_error should act on all non-faulty devices.
  media: cx18: fix kernel oops with tda8290 tuner
  Fix nasty 32-bit overflow bug in buffer i/o code.
  perf kmem: Make it work again on non NUMA machines
  perf: Fix a race condition in perf_remove_from_context()
  alarmtimer: Lock k_itimer during timer callback
  alarmtimer: Do not signal SIGEV_NONE timers
  parisc: Only use -mfast-indirect-calls option for 32-bit kernel builds
  powerpc/perf: Fix ABIv2 kernel backtraces
  sched: Fix unreleased llc_shared_mask bit during CPU hotplug
  ocfs2/dlm: do not get resource spinlock if lockres is new
  nilfs2: fix data loss with mmap()
  fs/notify: don't show f_handle if exportfs_encode_inode_fh failed
  fsnotify/fdinfo: use named constants instead of hardcoded values
  kcmp: fix standard comparison bug
  Revert "mac80211: disable uAPSD if all ACs are under ACM"
  usb: dwc3: core: fix ordering for PHY suspend
  usb: dwc3: core: fix order of PM runtime calls
  usb: host: xhci: fix compliance mode workaround
  genhd: fix leftover might_sleep() in blk_free_devt()
  lockd: fix rpcbind crash on lockd startup failure
  rtlwifi: rtl8192cu: Add new ID
  percpu: perform tlb flush after pcpu_map_pages() failure
  percpu: fix pcpu_alloc_pages() failure path
  percpu: free percpu allocation info for uniprocessor system
  ata_piix: Add Device IDs for Intel 9 Series PCH
  Input: i8042 - add nomux quirk for Avatar AVIU-145A6
  Input: i8042 - add Fujitsu U574 to no_timeout dmi table
  Input: atkbd - do not try 'deactivate' keyboard on any LG laptops
  Input: elantech - fix detection of touchpad on ASUS s301l
  Input: synaptics - add support for ForcePads
  Input: serport - add compat handling for SPIOCSTYPE ioctl
  dm crypt: fix access beyond the end of allocated space
  block: Fix dev_t minor allocation lifetime
  workqueue: apply __WQ_ORDERED to create_singlethread_workqueue()
  Revert "iwlwifi: dvm: don't enable CTS to self"
  SCSI: libiscsi: fix potential buffer overrun in __iscsi_conn_send_pdu
  NFC: microread: Potential overflows in microread_target_discovered()
  iscsi-target: Fix memory corruption in iscsit_logout_post_handler_diffcid
  iscsi-target: avoid NULL pointer in iscsi_copy_param_list failure
  Target/iser: Don't put isert_conn inside disconnected handler
  Target/iser: Get isert_conn reference once got to connected_handler
  iio:inkern: fix overwritten -EPROBE_DEFER in of_iio_channel_get_by_name
  iio:magnetometer: bugfix magnetometers gain values
  iio: adc: ad_sigma_delta: Fix indio_dev->trig assignment
  iio: st_sensors: Fix indio_dev->trig assignment
  iio: meter: ade7758: Fix indio_dev->trig assignment
  iio: inv_mpu6050: Fix indio_dev->trig assignment
  iio: gyro: itg3200: Fix indio_dev->trig assignment
  iio:trigger: modify return value for iio_trigger_get
  CIFS: Fix SMB2 readdir error handling
  CIFS: Fix directory rename error
  ASoC: davinci-mcasp: Correct rx format unit configuration
  shmem: fix nlink for rename overwrite directory
  x86 early_ioremap: Increase FIX_BTMAPS_SLOTS to 8
  KVM: x86: handle idiv overflow at kvm_write_tsc
  regmap: Fix handling of volatile registers for format_write() chips
  ACPICA: Update to GPIO region handler interface.
  MIPS: mcount: Adjust stack pointer for static trace in MIPS32
  MIPS: ZBOOT: add missing <linux/string.h> include
  ARM: 8165/1: alignment: don't break misaligned NEON load/store
  ARM: 7897/1: kexec: Use the right ISA for relocate_new_kernel
  ARM: 8133/1: use irq_set_affinity with force=false when migrating irqs
  ARM: 8128/1: abort: don't clear the exclusive monitors
  NFSv4: Fix another bug in the close/open_downgrade code
  NFSv4: nfs4_state_manager() vs. nfs_server_remove_lists()
  usb:hub set hub->change_bits when over-current happens
  usb: dwc3: omap: fix ordering for runtime pm calls
  USB: EHCI: unlink QHs even after the controller has stopped
  USB: storage: Add quirks for Entrega/Xircom USB to SCSI converters
  USB: storage: Add quirk for Ariston Technologies iConnect USB to SCSI adapter
  USB: storage: Add quirk for Adaptec USBConnect 2000 USB-to-SCSI Adapter
  storage: Add single-LUN quirk for Jaz USB Adapter
  usb: hub: take hub->hdev reference when processing from eventlist
  xhci: fix oops when xhci resumes from hibernate with hw lpm capable devices
  xhci: Fix null pointer dereference if xhci initialization fails
  USB: zte_ev: fix removed PIDs
  USB: ftdi_sio: add support for NOVITUS Bono E thermal printer
  USB: sierra: add 1199:68AA device ID
  USB: sierra: avoid CDC class functions on "68A3" devices
  USB: zte_ev: remove duplicate Qualcom PID
  USB: zte_ev: remove duplicate Gobi PID
  Revert "USB: option,zte_ev: move most ZTE CDMA devices to zte_ev"
  USB: option: add VIA Telecom CDS7 chipset device id
  USB: option: reduce interrupt-urb logging verbosity
  USB: serial: fix potential heap buffer overflow
  USB: sisusb: add device id for Magic Control USB video
  USB: serial: fix potential stack buffer overflow
  USB: serial: pl2303: add device id for ztek device
  xtensa: fix a6 and a7 handling in fast_syscall_xtensa
  xtensa: fix TLBTEMP_BASE_2 region handling in fast_second_level_miss
  xtensa: fix access to THREAD_RA/THREAD_SP/THREAD_DS
  xtensa: fix address checks in dma_{alloc,free}_coherent
  xtensa: replace IOCTL code definitions with constants
  drm/radeon: add connector quirk for fujitsu board
  drm/vmwgfx: Fix a potential infinite spin waiting for fifo idle
  drm/ast: AST2000 cannot be detected correctly
  drm/i915: Wait for vblank before enabling the TV encoder
  drm/i915: Remove bogus __init annotation from DMI callbacks
  HID: logitech-dj: prevent false errors to be shown
  HID: magicmouse: sanity check report size in raw_event() callback
  HID: picolcd: sanity check report size in raw_event() callback
  cfq-iosched: Fix wrong children_weight calculation
  ALSA: pcm: fix fifo_size frame calculation
  ALSA: hda - Fix invalid pin powermap without jack detection
  ALSA: hda - Fix COEF setups for ALC1150 codec
  ALSA: core: fix buffer overflow in snd_info_get_line()
  arm64: ptrace: fix compat hardware watchpoint reporting
  trace: Fix epoll hang when we race with new entries
  i2c: at91: Fix a race condition during signal handling in at91_do_twi_xfer.
  i2c: at91: add bound checking on SMBus block length bytes
  arm64: flush TLS registers during exec
  ibmveth: Fix endian issues with rx_no_buffer statistic
  ahci: add pcid for Marvel 0x9182 controller
  ahci: Add Device IDs for Intel 9 Series PCH
  pata_scc: propagate return value of scc_wait_after_reset
  drm/i915: read HEAD register back in init_ring_common() to enforce ordering
  drm/radeon: load the lm63 driver for an lm64 thermal chip.
  drm/ttm: Choose a pool to shrink correctly in ttm_dma_pool_shrink_scan().
  drm/ttm: Fix possible division by 0 in ttm_dma_pool_shrink_scan().
  drm/tilcdc: fix double kfree
  drm/tilcdc: fix release order on exit
  drm/tilcdc: panel: fix leak when unloading the module
  drm/tilcdc: tfp410: fix dangling sysfs connector node
  drm/tilcdc: slave: fix dangling sysfs connector node
  drm/tilcdc: panel: fix dangling sysfs connector node
  carl9170: fix sending URBs with wrong type when using full-speed
  Linux 3.10.55
  libceph: gracefully handle large reply messages from the mon
  libceph: rename ceph_msg::front_max to front_alloc_len
  tpm: Provide a generic means to override the chip returned timeouts
  vfs: fix bad hashing of dentries
  dcache.c: get rid of pointless macros
  IB/srp: Fix deadlock between host removal and multipathd
  blkcg: don't call into policy draining if root_blkg is already gone
  mtd: nand: omap: Fix 1-bit Hamming code scheme, omap_calculate_ecc()
  mtd/ftl: fix the double free of the buffers allocated in build_maps()
  CIFS: Fix wrong restart readdir for SMB1
  CIFS: Fix wrong filename length for SMB2
  CIFS: Fix wrong directory attributes after rename
  CIFS: Possible null ptr deref in SMB2_tcon
  CIFS: Fix async reading on reconnects
  CIFS: Fix STATUS_CANNOT_DELETE error mapping for SMB2
  libceph: do not hard code max auth ticket len
  libceph: add process_one_ticket() helper
  libceph: set last_piece in ceph_msg_data_pages_cursor_init() correctly
  md/raid1,raid10: always abort recover on write error.
  xfs: don't zero partial page cache pages during O_DIRECT writes
  xfs: don't zero partial page cache pages during O_DIRECT writes
  xfs: don't dirty buffers beyond EOF
  xfs: quotacheck leaves dquot buffers without verifiers
  RDMA/iwcm: Use a default listen backlog if needed
  md/raid10: Fix memory leak when raid10 reshape completes.
  md/raid10: fix memory leak when reshaping a RAID10.
  md/raid6: avoid data corruption during recovery of double-degraded RAID6
  Bluetooth: Avoid use of session socket after the session gets freed
  Bluetooth: never linger on process exit
  mnt: Add tests for unprivileged remount cases that have found to be faulty
  mnt: Change the default remount atime from relatime to the existing value
  mnt: Correct permission checks in do_remount
  mnt: Move the test for MNT_LOCK_READONLY from change_mount_flags into do_remount
  mnt: Only change user settable mount flags in remount
  ring-buffer: Up rb_iter_peek() loop count to 3
  ring-buffer: Always reset iterator to reader page
  ACPI / cpuidle: fix deadlock between cpuidle_lock and cpu_hotplug.lock
  ACPI: Run fixed event device notifications in process context
  ACPICA: Utilities: Fix memory leak in acpi_ut_copy_iobject_to_iobject
  bfa: Fix undefined bit shift on big-endian architectures with 32-bit DMA address
  ASoC: pxa-ssp: drop SNDRV_PCM_FMTBIT_S24_LE
  ASoC: max98090: Fix missing free_irq
  ASoC: samsung: Correct I2S DAI suspend/resume ops
  ASoC: wm_adsp: Add missing MODULE_LICENSE
  ASoC: pcm: fix dpcm_path_put in dpcm runtime update
  openrisc: Rework signal handling
  MIPS: Fix accessing to per-cpu data when flushing the cache
  MIPS: OCTEON: make get_system_type() thread-safe
  MIPS: asm: thread_info: Add _TIF_SECCOMP flag
  MIPS: Cleanup flags in syscall flags handlers.
  MIPS: asm/reg.h: Make 32- and 64-bit definitions available at the same time
  MIPS: Remove BUG_ON(!is_fpu_owner()) in do_ade()
  MIPS: tlbex: Fix a missing statement for HUGETLB
  MIPS: Prevent user from setting FCSR cause bits
  MIPS: GIC: Prevent array overrun
  drivers: scsi: storvsc: Correctly handle TEST_UNIT_READY failure
  Drivers: scsi: storvsc: Implement a eh_timed_out handler
  powerpc/pseries: Failure on removing device node
  powerpc/mm: Use read barrier when creating real_pte
  powerpc/mm/numa: Fix break placement
  regulator: arizona-ldo1: remove bypass functionality
  mfd: omap-usb-host: Fix improper mask use.
  kernel/smp.c:on_each_cpu_cond(): fix warning in fallback path
  CAPABILITIES: remove undefined caps from all processes
  tpm: missing tpm_chip_put in tpm_get_random()
  firmware: Do not use WARN_ON(!spin_is_locked())
  spi: omap2-mcspi: Configure hardware when slave driver changes mode
  spi: orion: fix incorrect handling of cell-index DT property
  iommu/amd: Fix cleanup_domain for mass device removal
  media: media-device: Remove duplicated memset() in media_enum_entities()
  media: au0828: Only alt setting logic when needed
  media: xc4000: Fix get_frequency()
  media: xc5000: Fix get_frequency()
  Linux 3.10.54
  USB: fix build error with CONFIG_PM_RUNTIME disabled
  NFSv4: Fix problems with close in the presence of a delegation
  NFSv3: Fix another acl regression
  svcrdma: Select NFSv4.1 backchannel transport based on forward channel
  NFSD: Decrease nfsd_users in nfsd_startup_generic fail
  usb: hub: Prevent hub autosuspend if usbcore.autosuspend is -1
  USB: whiteheat: Added bounds checking for bulk command response
  USB: ftdi_sio: Added PID for new ekey device
  USB: ftdi_sio: add Basic Micro ATOM Nano USB2Serial PID
  ARM: OMAP2+: hwmod: Rearm wake-up interrupts for DT when MUSB is idled
  usb: xhci: amd chipset also needs short TX quirk
  xhci: Treat not finding the event_seg on COMP_STOP the same as COMP_STOP_INVAL
  Staging: speakup: Update __speakup_paste_selection() tty (ab)usage to match vt
  jbd2: fix infinite loop when recovering corrupt journal blocks
  mei: nfc: fix memory leak in error path
  mei: reset client state on queued connect request
  Btrfs: fix csum tree corruption, duplicate and outdated checksums
  hpsa: fix bad -ENOMEM return value in hpsa_big_passthru_ioctl
  x86/efi: Enforce CONFIG_RELOCATABLE for EFI boot stub
  x86_64/vsyscall: Fix warn_bad_vsyscall log output
  x86: don't exclude low BIOS area when allocating address space for non-PCI cards
  drm/radeon: add additional SI pci ids
  ext4: fix BUG_ON in mb_free_blocks()
  kvm: iommu: fix the third parameter of kvm_iommu_put_pages (CVE-2014-3601)
  Revert "KVM: x86: Increase the number of fixed MTRR regs to 10"
  KVM: nVMX: fix "acknowledge interrupt on exit" when APICv is in use
  KVM: x86: always exit on EOIs for interrupts listed in the IOAPIC redir table
  KVM: x86: Inter-privilege level ret emulation is not implemeneted
  crypto: ux500 - make interrupt mode plausible
  serial: core: Preserve termios c_cflag for console resume
  ext4: fix ext4_discard_allocated_blocks() if we can't allocate the pa struct
  drivers/i2c/busses: use correct type for dma_map/unmap
  hwmon: (dme1737) Prevent overflow problem when writing large limits
  hwmon: (ads1015) Fix out-of-bounds array access
  hwmon: (lm85) Fix various errors on attribute writes
  hwmon: (ads1015) Fix off-by-one for valid channel index checking
  hwmon: (gpio-fan) Prevent overflow problem when writing large limits
  hwmon: (lm78) Fix overflow problems seen when writing large temperature limits
  hwmon: (sis5595) Prevent overflow problem when writing large limits
  drm: omapdrm: fix compiler errors
  ARM: OMAP3: Fix choice of omap3_restore_es function in OMAP34XX rev3.1.2 case.
  mei: start disconnect request timer consistently
  ALSA: hda/realtek - Avoid setting wrong COEF on ALC269 & co
  ALSA: hda/ca0132 - Don't try loading firmware at resume when already failed
  ALSA: virtuoso: add Xonar Essence STX II support
  ALSA: hda - fix an external mic jack problem on a HP machine
  USB: Fix persist resume of some SS USB devices
  USB: ehci-pci: USB host controller support for Intel Quark X1000
  USB: serial: ftdi_sio: Add support for new Xsens devices
  USB: serial: ftdi_sio: Annotate the current Xsens PID assignments
  USB: OHCI: don't lose track of EDs when a controller dies
  isofs: Fix unbounded recursion when processing relocated directories
  HID: fix a couple of off-by-ones
  HID: logitech: perform bounds checking on device_id early enough
  stable_kernel_rules: Add pointer to netdev-FAQ for network patches
  Linux 3.10.53
  arch/sparc/math-emu/math_32.c: drop stray break operator
  sparc64: ldc_connect() should not return EINVAL when handshake is in progress.
  sunsab: Fix detection of BREAK on sunsab serial console
  bbc-i2c: Fix BBC I2C envctrl on SunBlade 2000
  sparc64: Guard against flushing openfirmware mappings.
  sparc64: Do not insert non-valid PTEs into the TSB hash table.
  sparc64: Add membar to Niagara2 memcpy code.
  sparc64: Fix huge TSB mapping on pre-UltraSPARC-III cpus.
  sparc64: Don't bark so loudly about 32-bit tasks generating 64-bit fault addresses.
  sparc64: Fix top-level fault handling bugs.
  sparc64: Handle 32-bit tasks properly in compute_effective_address().
  sparc64: Make itc_sync_lock raw
  sparc64: Fix argument sign extension for compat_sys_futex().
  sctp: fix possible seqlock seadlock in sctp_packet_transmit()
  iovec: make sure the caller actually wants anything in memcpy_fromiovecend
  net: Correctly set segment mac_len in skb_segment().
  macvlan: Initialize vlan_features to turn on offload support.
  net: sctp: inherit auth_capable on INIT collisions
  tcp: Fix integer-overflow in TCP vegas
  tcp: Fix integer-overflows in TCP veno
  net: sendmsg: fix NULL pointer dereference
  ip: make IP identifiers less predictable
  inetpeer: get rid of ip_id_count
  bnx2x: fix crash during TSO tunneling
  Linux 3.10.52
  x86/espfix/xen: Fix allocation of pages for paravirt page tables
  lib/btree.c: fix leak of whole btree nodes
  net/l2tp: don't fall back on UDP [get|set]sockopt
  net: mvneta: replace Tx timer with a real interrupt
  net: mvneta: add missing bit descriptions for interrupt masks and causes
  net: mvneta: do not schedule in mvneta_tx_timeout
  net: mvneta: use per_cpu stats to fix an SMP lock up
  net: mvneta: increase the 64-bit rx/tx stats out of the hot path
  Revert "mac80211: move "bufferable MMPDU" check to fix AP mode scan"
  staging: vt6655: Fix Warning on boot handle_irq_event_percpu.
  x86_64/entry/xen: Do not invoke espfix64 on Xen
  x86, espfix: Make it possible to disable 16-bit support
  x86, espfix: Make espfix64 a Kconfig option, fix UML
  x86, espfix: Fix broken header guard
  x86, espfix: Move espfix definitions into a separate header file
  x86-64, espfix: Don't leak bits 31:16 of %esp returning to 16-bit stack
  Revert "x86-64, modify_ldt: Make support for 16-bit segments a runtime option"
  timer: Fix lock inversion between hrtimer_bases.lock and scheduler locks
  printk: rename printk_sched to printk_deferred
  iio: buffer: Fix demux table creation
  staging: vt6655: Fix disassociated messages every 10 seconds
  mm, thp: do not allow thp faults to avoid cpuset restrictions
  scsi: handle flush errors properly
  rapidio/tsi721_dma: fix failure to obtain transaction descriptor
  cfg80211: fix mic_failure tracing
  ARM: 8115/1: LPAE: reduce damage caused by idmap to virtual memory layout
  crypto: af_alg - properly label AF_ALG socket
  Linux 3.10.51
  core, nfqueue, openvswitch: Orphan frags in skb_zerocopy and handle errors
  x86/efi: Include a .bss section within the PE/COFF headers
  s390/ptrace: fix PSW mask check
  Fix gcc-4.9.0 miscompilation of load_balance() in scheduler
  mm: hugetlb: fix copy_hugetlb_page_range()
  x86_32, entry: Store badsys error code in %eax
  hwmon: (smsc47m192) Fix temperature limit and vrm write operations
  parisc: Remove SA_RESTORER define
  coredump: fix the setting of PF_DUMPCORE
  Input: fix defuzzing logic
  slab_common: fix the check for duplicate slab names
  slab_common: Do not check for duplicate slab names
  tracing: Fix wraparound problems in "uptime" trace clock
  blkcg: don't call into policy draining if root_blkg is already gone
  ahci: add support for the Promise FastTrak TX8660 SATA HBA (ahci mode)
  libata: introduce ata_host->n_tags to avoid oops on SAS controllers
  libata: support the ata host which implements a queue depth less than 32
  block: don't assume last put of shared tags is for the host
  block: provide compat ioctl for BLKZEROOUT
  media: tda10071: force modulation to QPSK on DVB-S
  media: hdpvr: fix two audio bugs
  Linux 3.10.50
  ARC: Implement ptrace(PTRACE_GET_THREAD_AREA)
  sched: Fix possible divide by zero in avg_atom() calculation
  locking/mutex: Disable optimistic spinning on some architectures
  PM / sleep: Fix request_firmware() error at resume
  dm cache metadata: do not allow the data block size to change
  dm thin metadata: do not allow the data block size to change
  alarmtimer: Fix bug where relative alarm timers were treated as absolute
  drm/radeon: avoid leaking edid data
  drm/qxl: return IRQ_NONE if it was not our irq
  drm/radeon: set default bl level to something reasonable
  irqchip: gic: Fix core ID calculation when topology is read from DT
  irqchip: gic: Add support for cortex a7 compatible string
  ring-buffer: Fix polling on trace_pipe
  mwifiex: fix Tx timeout issue
  perf/x86/intel: ignore CondChgd bit to avoid false NMI handling
  ipv4: fix buffer overflow in ip_options_compile()
  dns_resolver: Null-terminate the right string
  dns_resolver: assure that dns_query() result is null-terminated
  sunvnet: clean up objects created in vnet_new() on vnet_exit()
  net: pppoe: use correct channel MTU when using Multilink PPP
  net: sctp: fix information leaks in ulpevent layer
  tipc: clear 'next'-pointer of message fragments before reassembly
  be2net: set EQ DB clear-intr bit in be_open()
  netlink: Fix handling of error from netlink_dump().
  net: mvneta: Fix big endian issue in mvneta_txq_desc_csum()
  net: mvneta: fix operation in 10 Mbit/s mode
  appletalk: Fix socket referencing in skb
  tcp: fix false undo corner cases
  igmp: fix the problem when mc leave group
  net: qmi_wwan: add two Sierra Wireless/Netgear devices
  net: qmi_wwan: Add ID for Telewell TW-LTE 4G v2
  ipv4: icmp: Fix pMTU handling for rare case
  tcp: Fix divide by zero when pushing during tcp-repair
  bnx2x: fix possible panic under memory stress
  net: fix sparse warning in sk_dst_set()
  ipv4: irq safe sk_dst_[re]set() and ipv4_sk_update_pmtu() fix
  ipv4: fix dst race in sk_dst_get()
  8021q: fix a potential memory leak
  net: sctp: check proc_dointvec result in proc_sctp_do_auth
  tcp: fix tcp_match_skb_to_sack() for unaligned SACK at end of an skb
  ip_tunnel: fix ip_tunnel_lookup
  shmem: fix splicing from a hole while it's punched
  shmem: fix faulting into a hole, not taking i_mutex
  shmem: fix faulting into a hole while it's punched
  iwlwifi: dvm: don't enable CTS to self
  igb: do a reset on SR-IOV re-init if device is down
  hwmon: (adt7470) Fix writes to temperature limit registers
  hwmon: (da9052) Don't use dash in the name attribute
  hwmon: (da9055) Don't use dash in the name attribute
  tracing: Add ftrace_trace_stack into __trace_puts/__trace_bputs
  tracing: Fix graph tracer with stack tracer on other archs
  fuse: handle large user and group ID
  Bluetooth: Ignore H5 non-link packets in non-active state
  Drivers: hv: util: Fix a bug in the KVP code
  media: gspca_pac7302: Add new usb-id for Genius i-Look 317
  usb: Check if port status is equal to RxDetect

Signed-off-by: Ian Maund <imaund@codeaurora.org>
2015-04-24 18:04:40 -07:00
Johannes Weiner e2ec2c2b96 arch: mm: pass userspace fault flag to generic fault handler
commit 759496ba6407c6994d6a5ce3a5e74937d7816208 upstream.

Unlike global OOM handling, memory cgroup code will invoke the OOM killer
in any OOM situation because it has no way of telling faults occuring in
kernel context - which could be handled more gracefully - from
user-triggered faults.

Pass a flag that identifies faults originating in user space from the
architecture-specific fault handlers to generic code so that memcg OOM
handling can be improved.

Signed-off-by: Johannes Weiner <hannes@cmpxchg.org>
Reviewed-by: Michal Hocko <mhocko@suse.cz>
Cc: David Rientjes <rientjes@google.com>
Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: azurIt <azurit@pobox.sk>
Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-11-21 09:22:56 -08:00
Helge Deller aca0ab6181 parisc: Use compat layer for msgctl, shmat, shmctl and semtimedop syscalls
commit 2fe749f50b0bec07650ef135b29b1f55bf543869 upstream.

Switch over the msgctl, shmat, shmctl and semtimedop syscalls to use the compat
layer. The problem was found with the debian procenv package, which called
	shmctl(0, SHM_INFO, &info);
in which the shmctl syscall then overwrote parts of the surrounding areas on
the stack on which the info variable was stored and thus lead to a segfault
later on.

Additionally fix the definition of struct shminfo64 to use unsigned longs like
the other architectures. This has no impact on userspace since we only have a
32bit userspace up to now.

Signed-off-by: Helge Deller <deller@gmx.de>
Cc: John David Anglin <dave.anglin@bell.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-11-21 09:22:53 -08:00
John David Anglin 178ba7e09f parisc: Only use -mfast-indirect-calls option for 32-bit kernel builds
commit d26a7730b5874a5fa6779c62f4ad7c5065a94723 upstream.

In spite of what the GCC manual says, the -mfast-indirect-calls has
never been supported in the 64-bit parisc compiler. Indirect calls have
always been done using function descriptors irrespective of the
-mfast-indirect-calls option.

Recently, it was noticed that a function descriptor was always requested
when the -mfast-indirect-calls option was specified. This caused
problems when the option was used in  application code and doesn't make
any sense because the whole point of the option is to avoid using a
function descriptor for indirect calls.

Fixing this broke 64-bit kernel builds.

I will fix GCC but for now we need the attached change. This results in
the same kernel code as before.

Signed-off-by: John David Anglin <dave.anglin@bell.net>
Signed-off-by: Helge Deller <deller@gmx.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-10-05 14:54:14 -07:00
Ian Maund 6440f462f9 Merge upstream tag 'v3.10.49' into msm-3.10
* commit 'v3.10.49': (529 commits)
  Linux 3.10.49
  ACPI / battery: Retry to get battery information if failed during probing
  x86, ioremap: Speed up check for RAM pages
  Score: Modify the Makefile of Score, remove -mlong-calls for compiling
  Score: The commit is for compiling successfully.
  Score: Implement the function csum_ipv6_magic
  score: normalize global variables exported by vmlinux.lds
  rtmutex: Plug slow unlock race
  rtmutex: Handle deadlock detection smarter
  rtmutex: Detect changes in the pi lock chain
  rtmutex: Fix deadlock detector for real
  ring-buffer: Check if buffer exists before polling
  drm/radeon: stop poisoning the GART TLB
  drm/radeon: fix typo in golden register setup on evergreen
  ext4: disable synchronous transaction batching if max_batch_time==0
  ext4: clarify error count warning messages
  ext4: fix unjournalled bg descriptor while initializing inode bitmap
  dm io: fix a race condition in the wake up code for sync_io
  Drivers: hv: vmbus: Fix a bug in the channel callback dispatch code
  clk: spear3xx: Use proper control register offset
  ...

In addition to bringing in upstream commits, this merge also makes minor
changes to mainitain compatibility with upstream:

The definition of list_next_entry in qcrypto.c and ipa_dp.c has been
removed, as upstream has moved the definition to list.h. The implementation
of list_next_entry was identical between the two.

irq.c, for both arm and arm64 architecture, has had its calls to
__irq_set_affinity_locked updated to reflect changes to the API upstream.

Finally, as we have removed the sleep_length member variable of the
tick_sched struct, all changes made by upstream commit ec804bd do not
apply to our tree and have been removed from this merge. Only
kernel/time/tick-sched.c is impacted.

Change-Id: I63b7e0c1354812921c94804e1f3b33d1ad6ee3f1
Signed-off-by: Ian Maund <imaund@codeaurora.org>
2014-08-20 13:23:09 -07:00
Tim Chen 3caa6fcb90 locking/mcs: Allow architecture specific asm files to be used for contended case
This patch allows each architecture to add its specific assembly optimized
arch_mcs_spin_lock_contended and arch_mcs_spinlock_uncontended for
MCS lock and unlock functions.

Signed-off-by: Tim Chen <tim.c.chen@linux.intel.com>
Cc: Scott J Norton <scott.norton@hp.com>
Cc: Raghavendra K T <raghavendra.kt@linux.vnet.ibm.com>
Cc: AswinChandramouleeswaran <aswin@hp.com>
Cc: George Spelvin <linux@horizon.com>
Cc: Rik vanRiel <riel@redhat.com>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: MichelLespinasse <walken@google.com>
Cc: Peter Hurley <peter@hurleysoftware.com>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: Alex Shi <alex.shi@linaro.org>
Cc: Dave Hansen <dave.hansen@intel.com>
Cc: Tim Chen <tim.c.chen@linux.intel.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: "Figo.zhang" <figo1802@gmail.com>
Cc: "Paul E.McKenney" <paulmck@linux.vnet.ibm.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Davidlohr Bueso <davidlohr.bueso@hp.com>
Cc: Waiman Long <waiman.long@hp.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Will Deacon <will.deacon@arm.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Matthew R Wilcox <matthew.r.wilcox@intel.com>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/1390347382.3138.67.camel@schen9-DESK
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Git-repo: git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
Git-commit: ddf1d169c0a489d498c1799a7043904a43b0c159
[joonwoop@codeaurora.org: Resolve merge conflicts; we don't have changes
for arch other than ARM/ARM64]
Signed-off-by: Joonwoo Park <joonwoop@codeaurora.org>
2014-08-15 11:41:16 -07:00
Tim Chen 9306555406 locking/mcs: Order the header files in Kbuild of each architecture in alphabetical order
We perform a clean up of the Kbuid files in each architecture.
We order the files in each Kbuild in alphabetical order
by running the below script.

for i in arch/*/include/asm/Kbuild
do
        cat $i | gawk '/^generic-y/ {
                i = 3;
                do {
                        for (; i <= NF; i++) {
                                if ($i == "\\") {
                                        getline;
                                        i = 1;
                                        continue;
                                }
                                if ($i != "")
                                        hdr[$i] = $i;
                        }
                        break;
                } while (1);
                next;
        }
        // {
                print $0;
        }
        END {
                n = asort(hdr);
                for (i = 1; i <= n; i++)
                        print "generic-y += " hdr[i];
        }' > ${i}.sorted;
        mv ${i}.sorted $i;
done

Signed-off-by: Tim Chen <tim.c.chen@linux.intel.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Matthew R Wilcox <matthew.r.wilcox@intel.com>
Cc: AswinChandramouleeswaran <aswin@hp.com>
Cc: Dave Hansen <dave.hansen@intel.com>
Cc: "Paul E.McKenney" <paulmck@linux.vnet.ibm.com>
Cc: Scott J Norton <scott.norton@hp.com>
Cc: Will Deacon <will.deacon@arm.com>
Cc: "Figo.zhang" <figo1802@gmail.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Rik van Riel <riel@redhat.com>
Cc: Waiman Long <waiman.long@hp.com>
Cc: Peter Hurley <peter@hurleysoftware.com>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: Tim Chen <tim.c.chen@linux.intel.com>
Cc: Alex Shi <alex.shi@linaro.org>
Cc: Raghavendra K T <raghavendra.kt@linux.vnet.ibm.com>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: George Spelvin <linux@horizon.com>
Cc: MichelLespinasse <walken@google.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Davidlohr Bueso <davidlohr.bueso@hp.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
[ Fixed build bug. ]
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Git-repo: git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
Git-commit: b119fa61d440fe0f5af504299ad506637585a8ca
[joonwoop@codeaurora.org: resolved conflict due to missing Kbuild files.]
Signed-off-by: Joonwoo Park <joonwoop@codeaurora.org>
2014-08-15 11:41:16 -07:00
John David Anglin c423ba6f8e parisc: Remove SA_RESTORER define
commit 20dbea494543aefaace874cc3ec93a39b94b1ec4 upstream.

The sa_restorer field in struct sigaction is obsolete and no longer in
the parisc implementation.  However, the core code assumes the field is
present if SA_RESTORER is defined. So, the define needs to be removed.

Signed-off-by: John David Anglin <dave.anglin@bell.net>
Signed-off-by: Helge Deller <deller@gmx.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-07-31 12:53:50 -07:00
AKASHI Takahiro 59059dd509 ftrace: make CALLER_ADDRx macros more generic
Most archs with HAVE_ARCH_CALLER_ADDR have the almost same definitions
of CALLER_ADDRx(n), and so put them into linux/ftrace.h.

Change-Id: Id459e7a8093cf93d6f0c7bbf34bf96a9bdb69197
Signed-off-by: AKASHI Takahiro <takahiro.akashi@linaro.org>
Signed-off-by: Mark Brown <broonie@linaro.org>
Signed-off-by: Pratik Patel <pratikp@codeaurora.org>
2014-07-29 13:02:34 -07:00
Helge Deller 977efe4943 parisc: add serial ports of C8000/1GHz machine to hardware database
commit eadcc7208a2237016be7bdff4551ba7614da85c8 upstream.

Signed-off-by: Helge Deller <deller@gmx.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-07-17 15:57:59 -07:00
James Hogan 56ecdc3d9e metag: Reduce maximum stack size to 256MB
commit d71f290b4e98a39f49f2595a13be3b4d5ce8e1f1 upstream.

Specify the maximum stack size for arches where the stack grows upward
(parisc and metag) in asm/processor.h rather than hard coding in
fs/exec.c so that metag can specify a smaller value of 256MB rather than
1GB.

This fixes a BUG on metag if the RLIMIT_STACK hard limit is increased
beyond a safe value by root. E.g. when starting a process after running
"ulimit -H -s unlimited" it will then attempt to use a stack size of the
maximum 1GB which is far too big for metag's limited user virtual
address space (stack_top is usually 0x3ffff000):

BUG: failure at fs/exec.c:589/shift_arg_pages()!

Signed-off-by: James Hogan <james.hogan@imgtec.com>
Cc: Helge Deller <deller@gmx.de>
Cc: "James E.J. Bottomley" <jejb@parisc-linux.org>
Cc: linux-parisc@vger.kernel.org
Cc: linux-metag@vger.kernel.org
Cc: John David Anglin <dave.anglin@bell.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-06-07 13:25:38 -07:00
Helge Deller cd09dfbdad parisc: fix epoll_pwait syscall on compat kernel
commit ab3e55b119c9653b19ea4edffb86f04db867ac98 upstream.

This bug was detected with the libio-epoll-perl debian package where the
test case IO-Ppoll-compat.t failed.

Signed-off-by: Helge Deller <deller@gmx.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-05-30 21:52:12 -07:00
Ian Maund 356fb13538 Merge upstream linux-stable v3.10.36 into msm-3.10
* commit 'v3.10.36': (494 commits)
  Linux 3.10.36
  netfilter: nf_conntrack_dccp: fix skb_header_pointer API usages
  mm: close PageTail race
  net: mvneta: rename MVNETA_GMAC2_PSC_ENABLE to MVNETA_GMAC2_PCS_ENABLE
  x86: fix boot on uniprocessor systems
  Input: cypress_ps2 - don't report as a button pads
  Input: synaptics - add manual min/max quirk for ThinkPad X240
  Input: synaptics - add manual min/max quirk
  Input: mousedev - fix race when creating mixed device
  ext4: atomically set inode->i_flags in ext4_set_inode_flags()
  Linux 3.10.35
  sched/autogroup: Fix race with task_groups list
  e100: Fix "disabling already-disabled device" warning
  xhci: Fix resume issues on Renesas chips in Samsung laptops
  Input: wacom - make sure touch_max is set for touch devices
  KVM: VMX: fix use after free of vmx->loaded_vmcs
  KVM: x86: handle invalid root_hpa everywhere
  KVM: MMU: handle invalid root_hpa at __direct_map
  Input: elantech - improve clickpad detection
  ARM: highbank: avoid L2 cache smc calls when PL310 is not present
  ...

Change-Id: Ib68f565291702c53df09e914e637930c5d3e5310
Signed-off-by: Ian Maund <imaund@codeaurora.org>
2014-04-23 16:23:49 -07:00
Ian Maund f1b32d4e47 Merge upstream linux-stable v3.10.28 into msm-3.10
The following commits have been reverted from this merge, as they are
known to introduce new bugs and are currently incompatible with our
audio implementation. Investigation of these commits is ongoing, and
they are expected to be brought in at a later time:

86e6de7 ALSA: compress: fix drain calls blocking other compress functions (v6)
16442d4 ALSA: compress: fix drain calls blocking other compress functions

This merge commit also includes a change in block, necessary for
compilation. Upstream has modified elevator_init_fn to prevent race
conditions, requring updates to row_init_queue and test_init_queue.

* commit 'v3.10.28': (1964 commits)
  Linux 3.10.28
  ARM: 7938/1: OMAP4/highbank: Flush L2 cache before disabling
  drm/i915: Don't grab crtc mutexes in intel_modeset_gem_init()
  serial: amba-pl011: use port lock to guard control register access
  mm: Make {,set}page_address() static inline if WANT_PAGE_VIRTUAL
  md/raid5: Fix possible confusion when multiple write errors occur.
  md/raid10: fix two bugs in handling of known-bad-blocks.
  md/raid10: fix bug when raid10 recovery fails to recover a block.
  md: fix problem when adding device to read-only array with bitmap.
  drm/i915: fix DDI PLLs HW state readout code
  nilfs2: fix segctor bug that causes file system corruption
  thp: fix copy_page_rep GPF by testing is_huge_zero_pmd once only
  ftrace/x86: Load ftrace_ops in parameter not the variable holding it
  SELinux: Fix possible NULL pointer dereference in selinux_inode_permission()
  writeback: Fix data corruption on NFS
  hwmon: (coretemp) Fix truncated name of alarm attributes
  vfs: In d_path don't call d_dname on a mount point
  staging: comedi: adl_pci9111: fix incorrect irq passed to request_irq()
  staging: comedi: addi_apci_1032: fix subdevice type/flags bug
  mm/memory-failure.c: recheck PageHuge() after hugetlb page migrate successfully
  GFS2: Increase i_writecount during gfs2_setattr_chown
  perf/x86/amd/ibs: Fix waking up from S3 for AMD family 10h
  perf scripting perl: Fix build error on Fedora 12
  ARM: 7815/1: kexec: offline non panic CPUs on Kdump panic
  Linux 3.10.27
  sched: Guarantee new group-entities always have weight
  sched: Fix hrtimer_cancel()/rq->lock deadlock
  sched: Fix cfs_bandwidth misuse of hrtimer_expires_remaining
  sched: Fix race on toggling cfs_bandwidth_used
  x86, fpu, amd: Clear exceptions in AMD FXSAVE workaround
  netfilter: nf_nat: fix access to uninitialized buffer in IRC NAT helper
  SCSI: sd: Reduce buffer size for vpd request
  intel_pstate: Add X86_FEATURE_APERFMPERF to cpu match parameters.
  mac80211: move "bufferable MMPDU" check to fix AP mode scan
  ACPI / Battery: Add a _BIX quirk for NEC LZ750/LS
  ACPI / TPM: fix memory leak when walking ACPI namespace
  mfd: rtsx_pcr: Disable interrupts before cancelling delayed works
  clk: exynos5250: fix sysmmu_mfc{l,r} gate clocks
  clk: samsung: exynos5250: Add CLK_IGNORE_UNUSED flag for the sysreg clock
  clk: samsung: exynos4: Correct SRC_MFC register
  clk: clk-divider: fix divisor > 255 bug
  ahci: add PCI ID for Marvell 88SE9170 SATA controller
  parisc: Ensure full cache coherency for kmap/kunmap
  drm/nouveau/bios: make jump conditional
  ARM: shmobile: mackerel: Fix coherent DMA mask
  ARM: shmobile: armadillo: Fix coherent DMA mask
  ARM: shmobile: kzm9g: Fix coherent DMA mask
  ARM: dts: exynos5250: Fix MDMA0 clock number
  ARM: fix "bad mode in ... handler" message for undefined instructions
  ARM: fix footbridge clockevent device
  net: Loosen constraints for recalculating checksum in skb_segment()
  bridge: use spin_lock_bh() in br_multicast_set_hash_max
  netpoll: Fix missing TXQ unlock and and OOPS.
  net: llc: fix use after free in llc_ui_recvmsg
  virtio-net: fix refill races during restore
  virtio_net: don't leak memory or block when too many frags
  virtio-net: make all RX paths handle errors consistently
  virtio_net: fix error handling for mergeable buffers
  vlan: Fix header ops passthru when doing TX VLAN offload.
  net: rose: restore old recvmsg behavior
  rds: prevent dereference of a NULL device
  ipv6: always set the new created dst's from in ip6_rt_copy
  net: fec: fix potential use after free
  hamradio/yam: fix info leak in ioctl
  drivers/net/hamradio: Integer overflow in hdlcdrv_ioctl()
  net: inet_diag: zero out uninitialized idiag_{src,dst} fields
  ip_gre: fix msg_name parsing for recvfrom/recvmsg
  net: unix: allow bind to fail on mutex lock
  ipv6: fix illegal mac_header comparison on 32bit
  netvsc: don't flush peers notifying work during setting mtu
  tg3: Initialize REG_BASE_ADDR at PCI config offset 120 to 0
  net: unix: allow set_peek_off to fail
  net: drop_monitor: fix the value of maxattr
  ipv6: don't count addrconf generated routes against gc limit
  packet: fix send path when running with proto == 0
  virtio: delete napi structures from netdev before releasing memory
  macvtap: signal truncated packets
  tun: update file current position
  macvtap: update file current position
  macvtap: Do not double-count received packets
  rds: prevent BUG_ON triggered on congestion update to loopback
  net: do not pretend FRAGLIST support
  IPv6: Fixed support for blackhole and prohibit routes
  HID: Revert "Revert "HID: Fix logitech-dj: missing Unifying device issue""
  gpio-rcar: R-Car GPIO IRQ share interrupt
  clocksource: em_sti: Set cpu_possible_mask to fix SMP broadcast
  irqchip: renesas-irqc: Fix irqc_probe error handling
  Linux 3.10.26
  sh: add EXPORT_SYMBOL(min_low_pfn) and EXPORT_SYMBOL(max_low_pfn) to sh_ksyms_32.c
  ext4: fix bigalloc regression
  arm64: Use Normal NonCacheable memory for writecombine
  arm64: Do not flush the D-cache for anonymous pages
  arm64: Avoid cache flushing in flush_dcache_page()
  ARM: KVM: arch_timers: zero CNTVOFF upon return to host
  ARM: hyp: initialize CNTVOFF to zero
  clocksource: arch_timer: use virtual counters
  arm64: Remove unused cpu_name ascii in arch/arm64/mm/proc.S
  arm64: dts: Reserve the memory used for secondary CPU release address
  arm64: check for number of arguments in syscall_get/set_arguments()
  arm64: fix possible invalid FPSIMD initialization state
  ...

Change-Id: Ia0e5d71b536ab49ec3a1179d59238c05bdd03106
Signed-off-by: Ian Maund <imaund@codeaurora.org>
2014-03-24 14:28:34 -07:00
Christoph Hellwig d040642497 kernel: remove CONFIG_USE_GENERIC_SMP_HELPERS
We've switched over every architecture that supports SMP to it, so
remove the new useless config variable.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Cc: Jan Kara <jack@suse.cz>
Cc: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Git-commit: 0a06ff068f1255bcd7965ab07bc0f4adc3eb639a
Git-repo: git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
[imaund@codeaurora.org: resolve merge conflicts]
Signed-off-by: Ian Maund <imaund@codeaurora.org>
2014-02-07 15:55:40 -08:00
Jianguo Wu ea5ca22255 mm/arch: use NUMA_NO_NODE
Use more appropriate NUMA_NO_NODE instead of -1 in all archs' module_alloc()

Signed-off-by: Jianguo Wu <wujianguo@huawei.com>
Acked-by: David Rientjes <rientjes@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Git-commit: 40c3baa7c66f1352521378ee83509fb8f4c465de
Git-repo: git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
Signed-off-by: Ian Maund <imaund@codeaurora.org>
2014-02-07 15:55:39 -08:00
Al Viro c34b57e68e constify copy_siginfo_to_user{,32}()
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Git-commit: ce3959604878c1c693979ec552069dc8bdb5ccde
Git-repo: git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
[imaund@codeaurora.org: resolve merge conflicts]
Signed-off-by: Ian Maund <imaund@codeaurora.org>
2014-02-07 15:55:38 -08:00
Martin Schwidefsky ac7df0d7c4 Remove GENERIC_HARDIRQ config option
After the last architecture switched to generic hard irqs the config
options HAVE_GENERIC_HARDIRQS & GENERIC_HARDIRQS and the related code
for !CONFIG_GENERIC_HARDIRQS can be removed.

Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Git-commit: 0244ad004a54e39308d495fee0a2e637f8b5c317
Git-repo: git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
[imaund@codeaurora.org: resolve merge conflicts]
Signed-off-by: Ian Maund <imaund@codeaurora.org>
2014-02-07 13:49:47 -08:00
Johannes Weiner 0d49fb2dc7 arch: mm: pass userspace fault flag to generic fault handler
Unlike global OOM handling, memory cgroup code will invoke the OOM killer
in any OOM situation because it has no way of telling faults occuring in
kernel context - which could be handled more gracefully - from
user-triggered faults.

Pass a flag that identifies faults originating in user space from the
architecture-specific fault handlers to generic code so that memcg OOM
handling can be improved.

Signed-off-by: Johannes Weiner <hannes@cmpxchg.org>
Reviewed-by: Michal Hocko <mhocko@suse.cz>
Cc: David Rientjes <rientjes@google.com>
Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: azurIt <azurit@pobox.sk>
Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Git-commit: 759496ba6407c6994d6a5ce3a5e74937d7816208
Git-repo: git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
[imaund@codeaurora.org: resolve merge conflicts, removing changes in the
    tail that are not a part of this specific commit.]
Signed-off-by: Ian Maund <imaund@codeaurora.org>
2014-02-07 13:49:46 -08:00
Jiang Liu b78e83204c mm: concentrate modification of totalram_pages into the mm core
Concentrate code to modify totalram_pages into the mm core, so the arch
memory initialized code doesn't need to take care of it.  With these
changes applied, only following functions from mm core modify global
variable totalram_pages: free_bootmem_late(), free_all_bootmem(),
free_all_bootmem_node(), adjust_managed_page_count().

With this patch applied, it will be much more easier for us to keep
totalram_pages and zone->managed_pages in consistence.

Signed-off-by: Jiang Liu <jiang.liu@huawei.com>
Acked-by: David Howells <dhowells@redhat.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: "Michael S. Tsirkin" <mst@redhat.com>
Cc: <sworddragon2@aol.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Chris Metcalf <cmetcalf@tilera.com>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jeremy Fitzhardinge <jeremy@goop.org>
Cc: Jianguo Wu <wujianguo@huawei.com>
Cc: Joonsoo Kim <js1304@gmail.com>
Cc: Kamezawa Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Cc: Marek Szyprowski <m.szyprowski@samsung.com>
Cc: Mel Gorman <mel@csn.ul.ie>
Cc: Michel Lespinasse <walken@google.com>
Cc: Minchan Kim <minchan@kernel.org>
Cc: Rik van Riel <riel@redhat.com>
Cc: Rusty Russell <rusty@rustcorp.com.au>
Cc: Tang Chen <tangchen@cn.fujitsu.com>
Cc: Tejun Heo <tj@kernel.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Wen Congyang <wency@cn.fujitsu.com>
Cc: Will Deacon <will.deacon@arm.com>
Cc: Yasuaki Ishimatsu <isimatu.yasuaki@jp.fujitsu.com>
Cc: Yinghai Lu <yinghai@kernel.org>
Cc: Russell King <rmk@arm.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Git-commit: 0c988534737a358fdff42fcce78f0ff1a12dbfc5
Git-repo: git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
Signed-off-by: Ian Maund <imaund@codeaurora.org>
2014-02-07 13:49:40 -08:00
Al Viro 031325e245 consolidate io_remap_pfn_range definitions
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Git-commit: 40d158e61840fbbe23be3f37302a3ca237c15491
Git-repo: git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
Signed-off-by: Ian Maund <imaund@codeaurora.org>
2014-02-07 13:49:39 -08:00
Helge Deller 64a0099626 parisc: fix cache-flushing
commit 57737c49dd72c96cfbcd4f66559f3ffc399aeb4f upstream.

This commit:
f8dae00684d678afa13041ef170cecfd1297ed40: parisc: Ensure full cache coherency for kmap/kunmap
caused negative caching side-effects, e.g. hanging processes with expect and
too many inequivalent alias messages from flush_dcache_page() on Debian 5 systems.

This patch now partly reverts it and has been in production use on our debian buildd
makeservers since a week without any major problems.

Signed-off-by: Helge Deller <deller@gmx.de>
Signed-off-by: John David Anglin <dave.anglin@bell.net>
Signed-off-by: Helge Deller <deller@gmx.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-02-06 11:08:17 -08:00
John David Anglin d2c62ec3b4 parisc: Ensure full cache coherency for kmap/kunmap
commit f8dae00684d678afa13041ef170cecfd1297ed40 upstream.

Helge Deller noted a few weeks ago problems with the AIO support on
parisc. This change is the result of numerous iterations on how best to
deal with this problem.

The solution adopted here is to provide full cache coherency in a
uniform manner on all parisc systems. This involves calling
flush_dcache_page() on kmap operations and flush_kernel_dcache_page() on
kunmap operations. As a result, the copy_user_page() and
clear_user_page() functions can be removed and the overall code is
simpler.

The change ensures that both userspace and kernel aliases to a mapped
page are invalidated and flushed. This is necessary for the correct
operation of PA8800 and PA8900 based systems which do not support
inequivalent aliases.

With this change, I have observed no cache related issues on c8000 and
rp3440. It is now possible for example to do kernel builds with "-j64"
on four way systems.

On systems using XFS file systems, the patch recently posted by Mikulas
Patocka to "fix crash using XFS on loopback" is needed to avoid a hang
caused by an uninitialized lock passed to flush_dcache_page() in the
page struct.

Signed-off-by: John David Anglin <dave.anglin@bell.net>
Signed-off-by: Helge Deller <deller@gmx.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-01-15 15:28:51 -08:00
Helge Deller ca62ebe3b1 parisc: fix mmap(MAP_FIXED|MAP_SHARED) to already mmapped address
commit 0576da2c08e3d332f1b0653030d28ab804585ab6 upstream.

locale-gen on Debian showed a strange problem on parisc:
mmap2(NULL, 536870912, PROT_NONE, MAP_SHARED, 3, 0) = 0x42a54000
mmap2(0x42a54000, 103860, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED, 3, 0) = -1 EINVAL (Invalid argument)

Basically it was just trying to re-mmap() a file at the same address
which it was given by a previous mmap() call. But this remapping failed
with EINVAL.

The problem is, that when MAP_FIXED and MAP_SHARED flags were used, we didn't
included the mapping-based offset when we verified the alignment of the given
fixed address against the offset which we calculated it in the previous call.

Signed-off-by: Helge Deller <deller@gmx.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-12-11 22:36:27 -08:00
Helge Deller 8f7e823f18 parisc: break out SOCK_NONBLOCK define to own asm header file
commit 38c7937379276a5ea8c54481205003af2f2b5694 upstream.

Break SOCK_NONBLOCK out to its own asm-file as other arches do. This
fixes build errors with auditd and probably other packages.

Signed-off-by: Helge Deller <deller@gmx.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-12-04 10:55:49 -08:00
Helge Deller daa73ffb82 parisc: Do not crash 64bit SMP kernels on machines with >= 4GB RAM
commit 54e181e073fc1415e41917d725ebdbd7de956455 upstream.

Since the beginning of the parisc-linux port, sometimes 64bit SMP kernels were
not able to bring up other CPUs than the monarch CPU and instead crashed the
kernel.  The reason was unclear, esp. since it involved various machines (e.g.
J5600, J6750 and SuperDome). Testing showed, that those crashes didn't happened
when less than 4GB were installed, or if a 32bit Linux kernel was booted.

In the end, the fix for those SMP problems is trivial:
During the early phase of the initialization of the CPUs, including the monarch
CPU, the PDC_PSW firmware function to enable WIDE (=64bit) mode is called.
It's documented that this firmware function may clobber various registers, and
one one of those possibly clobbered registers is %cr30 which holds the task
thread info pointer.

Now, if %cr30 would always have been clobbered, then this bug would have been
detected much earlier. But lots of testing finally showed, that - at least for
%cr30 - on some machines only the upper 32bits of the 64bit register suddenly
turned zero after the firmware call.

So, after finding the root cause, the explanation for the various crashes
became clear:
- On 32bit SMP Linux kernels all upper 32bit were zero, so we didn't faced this
  problem.
- Monarch CPUs in 64bit mode always booted sucessfully, because the inital task
  thread info pointer was below 4GB.
- Secondary CPUs booted sucessfully on machines with less than 4GB RAM because
  the upper 32bit were zero anyay.
- Secondary CPus failed to boot if we had more than 4GB RAM and the task thread
  info pointer was located above the 4GB boundary.

Finally, the patch to fix this problem is trivial by saving the %cr30 register
before the firmware call and restoring it afterwards.

Signed-off-by: Helge Deller <deller@gmx.de>
Signed-off-by: John David Anglin <dave.anglin@bell.net>
Signed-off-by: Helge Deller <deller@gmx.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-11-13 12:05:32 +09:00
Helge Deller 77587e8940 parisc: fix interruption handler to respect pagefault_disable()
commit 59b33f148cc08fb33cbe823fca1e34f7f023765e upstream.

Running an "echo t > /proc/sysrq-trigger" crashes the parisc kernel.  The
problem is, that in print_worker_info() we try to read the workqueue info via
the probe_kernel_read() functions which use pagefault_disable() to avoid
crashes like this:
    probe_kernel_read(&pwq, &worker->current_pwq, sizeof(pwq));
    probe_kernel_read(&wq, &pwq->wq, sizeof(wq));
    probe_kernel_read(name, wq->name, sizeof(name) - 1);

The problem here is, that the first probe_kernel_read(&pwq) might return zero
in pwq and as such the following probe_kernel_reads() try to access contents of
the page zero which is read protected and generate a kernel segfault.

With this patch we fix the interruption handler to call parisc_terminate()
directly only if pagefault_disable() was not called (in which case
preempt_count()==0).  Otherwise we hand over to the pagefault handler which
will try to look up the faulting address in the fixup tables.

Signed-off-by: Helge Deller <deller@gmx.de>
Signed-off-by: John David Anglin  <dave.anglin@bell.net>
Signed-off-by: Helge Deller <deller@gmx.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-10-18 07:45:44 -07:00
Thomas Bogendoerfer 8a08a2ffd5 parisc: Fix interrupt routing for C8000 serial ports
commit dd5e6d6a3db09b16b7c222943977865eead88cc3 upstream.

We can't use dev->mod_index for selecting the interrupt routing entry,
because it's not an index into interrupt routing table. It will be even
wrong on a machine with 2 CPUs (4 cores). But all needed information is
contained in the PAT entries for the serial ports. mod[0] contains the
iosapic address and mod_info has some indications for the interrupt
input (at least it looks like it). This patch implements the searching
for the right iosapic and uses this interrupt input information.

Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Signed-off-by: Helge Deller <deller@gmx.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-08-11 18:35:21 -07:00
John David Anglin b81ed4057c parisc: Fix cache routines to ignore vma's with an invalid pfn
commit 50861f5a02dbf939c27d35a26c472885e2844188 upstream.

The parisc architecture does not have a pte special bit. As a result,
special mappings are handled with the VM_PFNMAP and VM_MIXEDMAP flags.
VM_MIXEDMAP mappings may or may not have a "struct page" backing. When
pfn_valid() is false, there is no "struct page" backing. Otherwise, they
are treated as normal pages.

The FireGL driver uses the VM_MIXEDMAP without a backing "struct page".
This treatment caused a panic due to a TLB data miss in
update_mmu_cache. This appeared to be in the code generated for
page_address(). We were in fact using a very circular bit of code to
determine the physical address of the PFN in various cache routines.
This wasn't valid when there was no "struct page" backing.  The needed
address can in fact be determined simply from the PFN itself without
using the "struct page".

The attached patch updates update_mmu_cache(), flush_cache_mm(),
flush_cache_range() and flush_cache_page() to check pfn_valid() and to
directly compute the PFN physical and virtual addresses.

Signed-off-by: John David Anglin <dave.anglin@bell.net>
Signed-off-by: Helge Deller <deller@gmx.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-08-11 18:35:21 -07:00
Helge Deller a2ebe4443f parisc: optimize mtsp(0,sr) inline assembly
commit 92b59929825d67db575043a76651865d16873b36 upstream.

If the value which should be moved into a space register is zero, we can
optimize the inline assembly to become "mtsp %r0,%srX".

Signed-off-by: Helge Deller <deller@gmx.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-07-21 18:21:26 -07:00
John David Anglin ad5def802d parisc: Ensure volatile space register %sr1 is not clobbered
commit e8d8fc219f9a0e63e7fb927881e6f4db8e7d34df upstream.

I still see the occasional random segv on rp3440.  Looking at one of
these (a code 15), it appeared the problem must be with the cache
handling of anonymous pages.  Reviewing this, I noticed that the space
register %sr1 might be being clobbered when we flush an anonymous page.

Register %sr1 is used for TLB purges in a couple of places.  These
purges are needed on PA8800 and PA8900 processors to ensure cache
consistency of flushed cache lines.

The solution here is simply to move the %sr1 load into the TLB lock
region needed to ensure that one purge executes at a time on SMP
systems.  This was already the case for one use.  After a few days of
operation, I haven't had a random segv on my rp3440.

Signed-off-by: John David Anglin <dave.anglin@bell.net>
Signed-off-by: Helge Deller <deller@gmx.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-07-21 18:21:26 -07:00
Helge Deller 8e700e9586 parisc: Fix gcc miscompilation in pa_memcpy()
commit 5b879d78bc0818aa710f5d4d9abbfc2aca075cc3 upstream.

When running the LTP testsuite one may hit this kernel BUG() with the
write06 testcase:

kernel BUG at mm/filemap.c:2023!
CPU: 1 PID: 8614 Comm: writev01 Not tainted 3.10.0-rc7-64bit-c3000+ #6
IASQ: 0000000000000000 0000000000000000 IAOQ: 00000000401e6e84 00000000401e6e88
 IIR: 03ffe01f    ISR: 0000000010340000  IOR: 000001fbe0380820
 CPU:        1   CR30: 00000000bef80000 CR31: ffffffffffffffff
 ORIG_R28: 00000000bdc192c0
 IAOQ[0]: iov_iter_advance+0x3c/0xc0
 IAOQ[1]: iov_iter_advance+0x40/0xc0
 RP(r2): generic_file_buffered_write+0x204/0x3f0
Backtrace:
 [<00000000401e764c>] generic_file_buffered_write+0x204/0x3f0
 [<00000000401eab24>] __generic_file_aio_write+0x244/0x448
 [<00000000401eadc0>] generic_file_aio_write+0x98/0x150
 [<000000004024f460>] do_sync_readv_writev+0xc0/0x130
 [<000000004025037c>] compat_do_readv_writev+0x12c/0x340
 [<00000000402505f8>] compat_writev+0x68/0xa0
 [<0000000040251d88>] compat_SyS_writev+0x98/0xf8

Reason for this crash is a gcc miscompilation in the fault handlers of
pa_memcpy() which return the fault address instead of the copied bytes.
Since this seems to be a generic problem with gcc-4.7.x (and below), it's
better to simplify the fault handlers in pa_memcpy to avoid this problem.

Here is a simple reproducer for the problem:

int main(int argc, char **argv)
{
	int fd, nbytes;
	struct iovec wr_iovec[] = {
		{ "TEST STRING                     ",32},
		{ (char*)0x40005000,32} }; // random memory.
	fd = open(DATA_FILE, O_RDWR | O_CREAT, 0666);
	nbytes = writev(fd, wr_iovec, 2);
	printf("return value = %d, errno %d (%s)\n",
		nbytes, errno, strerror(errno));
	return 0;
}

In addition, John David Anglin wrote:
There is no gcc PR as pa_memcpy is not legitimate C code. There is an
implicit assumption that certain variables will contain correct values
when an exception occurs and the code randomly jumps to one of the
exception blocks.  There is no guarantee of this.  If a PR was filed, it
would likely be marked as invalid.

Signed-off-by: Helge Deller <deller@gmx.de>
Signed-off-by: John David Anglin <dave.anglin@bell.net>
Signed-off-by: Helge Deller <deller@gmx.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-07-21 18:21:26 -07:00
John David Anglin d65ea48dc6 parisc: Use unshadowed index register for flush instructions in flush_dcache_page_asm and flush_icache_page_asm
The comment at the start of pacache.S states that the base and index
registers used for fdc,fic, and pdc instructions should not use shadowed
registers. Although this is probably unnecessary for tmpalias flushes,
there is also no reason not to comply.

Signed-off-by: John David Anglin <dave.anglin@bell.net>
Signed-off-by: Helge Deller <deller@gmx.de>
2013-06-18 20:29:10 +02:00