Граф коммитов

663059 Коммитов

Автор SHA1 Сообщение Дата
Shaohua Li 9f626e372a blk-throttle: prepare support multiple limits
We are going to support low/max limit, each cgroup will have 2 limits
after that. This patch prepares for the multiple limits change.

Signed-off-by: Shaohua Li <shli@fb.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
2017-03-28 08:02:20 -06:00
Shaohua Li 2ab5492de5 blk-throttle: use U64_MAX/UINT_MAX to replace -1
clean up the code to avoid using -1

Signed-off-by: Shaohua Li <shli@fb.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
2017-03-28 08:02:20 -06:00
Paolo Bonzini 2beb6dad2e KVM: x86: cleanup the page tracking SRCU instance
SRCU uses a delayed work item.  Skip cleaning it up, and
the result is use-after-free in the work item callbacks.

Reported-by: Dmitry Vyukov <dvyukov@google.com>
Suggested-by: Dmitry Vyukov <dvyukov@google.com>
Cc: stable@vger.kernel.org
Fixes: 0eb05bf290
Reviewed-by: Xiao Guangrong <xiaoguangrong.eric@gmail.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2017-03-28 14:08:02 +02:00
Ladi Prosek 7ad658b693 KVM: nVMX: fix nested EPT detection
The nested_ept_enabled flag introduced in commit 7ca29de213 was not
computed correctly. We are interested only in L1's EPT state, not the
the combined L0+L1 value.

In particular, if L0 uses EPT but L1 does not, nested_ept_enabled must
be false to make sure that PDPSTRs are loaded based on CR3 as usual,
because the special case described in 26.3.2.4 Loading Page-Directory-
Pointer-Table Entries does not apply.

Fixes: 7ca29de213 ("KVM: nVMX: fix CR3 load if L2 uses PAE paging and EPT")
Cc: qemu-stable@nongnu.org
Reported-by: Wanpeng Li <wanpeng.li@hotmail.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Ladi Prosek <lprosek@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2017-03-28 10:10:15 +02:00
Herongguang (Stephen) 0292e169b2 KVM: pci-assign: do not map smm memory slot pages in vt-d page tables
or VM memory are not put thus leaked in kvm_iommu_unmap_memslots() when
destroy VM.

This is consistent with current vfio implementation.

Signed-off-by: herongguang <herongguang.he@huawei.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2017-03-28 10:08:54 +02:00
Linus Torvalds ad0376eb14 A new EDAC driver for the Pondicherry2 memory controller IP found in the
Intel Apollo Lake platform and the Denverton microserver.
 
 + small fixlets.
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Merge tag 'edac_for_4.11_2' of git://git.kernel.org/pub/scm/linux/kernel/git/bp/bp

Pull EDAC updates from Borislav Petkov:
 "A new EDAC driver for the Pondicherry2 memory controller IP found in
  the Intel Apollo Lake platform and the Denverton microserver.

  Plus small fixlets.

  Normally I had this queued for 4.12 but Tony requested for the
  pnd2_edac driver to possibly land in 4.11 therefore I'm sending it to
  you now.

  It is a driver for new hardware which people don't have yet so it
  shouldn't cause any regressions.

  The couple of patches ontop of it show that Qiuxu actually did test it
  on the hardware he has access to :)"

* tag 'edac_for_4.11_2' of git://git.kernel.org/pub/scm/linux/kernel/git/bp/bp:
  EDAC, pnd2_edac: Fix reported DIMM number
  EDAC, pnd2_edac: Fix !EDAC_DEBUG build
  EDAC: Select DEBUG_FS
  EDAC, pnd2_edac: Add new EDAC driver for Intel SoC platforms
  EDAC, i5000, i5400: Fix use of MTR_DRAM_WIDTH macro
  EDAC, xgene: Fix wrongly spelled "procesing"
2017-03-27 11:09:00 -07:00
Linus Torvalds 85f91d5c51 Pin control fixes for v4.11, take two:
- Kconfig fixup for the TI IOdelay pinctrl-single add-on.
 
 - Fix up a typo in the meson i2c ao groups.
 
 - Switch a remapping back to use devm_ioremap() as
   devm_ioremap_resource() does not allow for sharing memory
   regions.
 
 - Do not clear the Qualcomm irq status bit in irq_unmask(),
   as this can lead to missing interrupts while the irq handler
   is executing.
 
 - Add irq_request/release_resources() on the ST driver.
 
 - Add a bunch of mysteriously missing pingroups for high
   numbered pins in the Qualcomm ipq4019 driver.
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Merge tag 'pinctrl-v4.11-3' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl

Pull more pin control fixes from Linus Walleij:
 "Here is a bunch of pin control fixes again

  A bit more than I'd like for this subsystem at this point, but what
  can I do. They are all driver fixes for hardware issues, as like "we
  forgot", "we didn't think of the fact that this could happen", "oops
  that one goes there" etc

   - Kconfig fixup for the TI IOdelay pinctrl-single add-on

   - fix up a typo in the meson i2c ao groups

   - switch a remapping back to use devm_ioremap() as
     devm_ioremap_resource() does not allow for sharing memory regions

   - do not clear the Qualcomm irq status bit in irq_unmask(), as this
     can lead to missing interrupts while the irq handler is executing

   - add irq_request/release_resources() on the ST driver

   - add a bunch of mysteriously missing pingroups for high numbered
     pins in the Qualcomm ipq4019 driver"

* tag 'pinctrl-v4.11-3' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl:
  pinctrl: qcom: ipq4019: add missing pingroups for pins > 70
  pinctrl: st: add irq_request/release_resources callbacks
  pinctrl: qcom: Don't clear status bit on irq_unmask
  pinctrl: samsung: Fix memory mapping code
  pinctrl: meson-gxbb: Fix typo in i2c ao groups
  pinctrl: ti: The IODelay driver is a DRA7xxx feature so depend on that SoC
2017-03-27 10:58:02 -07:00
Linus Torvalds d3e68cef89 m68k updates for 4.11 (take two)
- Build warning fix,
   - Defconfig updates,
   - New syscall statx.
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Merge tag 'm68k-for-v4.11-tag2' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k

Pull m68k updates from Geert Uytterhoeven:

  - build warning fix

  - defconfig updates

  - wire up new statx syscall

* tag 'm68k-for-v4.11-tag2' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k:
  m68k: Wire up statx
  m68k/defconfig: Update defconfigs for v4.11-rc1
  m68k/bitops: Correct signature of test_bit()
2017-03-27 10:44:51 -07:00
Linus Torvalds c02ed2e75e Linux 4.11-rc4 2017-03-26 14:15:16 -07:00
Linus Torvalds 0dc82fa59b Char/Misc driver fixes for 4.11-rc4
A smattering of different small fixes for some random driver subsystems.
 Nothing all that major, just resolutions for reported issues and bugs.
 
 All have been in linux-next with no reported issues.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'char-misc-4.11-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc

Pull char/misc driver fixes from Greg KH:
 "A smattering of different small fixes for some random driver
  subsystems. Nothing all that major, just resolutions for reported
  issues and bugs.

  All have been in linux-next with no reported issues"

* tag 'char-misc-4.11-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (21 commits)
  extcon: int3496: Set the id pin to direction-input if necessary
  extcon: int3496: Use gpiod_get instead of gpiod_get_index
  extcon: int3496: Add dependency on X86 as it's Intel specific
  extcon: int3496: Add GPIO ACPI mapping table
  extcon: int3496: Rename GPIO pins in accordance with binding
  vmw_vmci: handle the return value from pci_alloc_irq_vectors correctly
  ppdev: fix registering same device name
  parport: fix attempt to write duplicate procfiles
  auxdisplay: img-ascii-lcd: add missing sentinel entry in img_ascii_lcd_matches
  Drivers: hv: vmbus: Don't leak memory when a channel is rescinded
  Drivers: hv: vmbus: Don't leak channel ids
  Drivers: hv: util: don't forget to init host_ts.lock
  Drivers: hv: util: move waiting for release to hv_utils_transport itself
  vmbus: remove hv_event_tasklet_disable/enable
  vmbus: use rcu for per-cpu channel list
  mei: don't wait for os version message reply
  mei: fix deadlock on mei reset
  intel_th: pci: Add Gemini Lake support
  intel_th: pci: Add Denverton SOC support
  intel_th: Don't leak module refcount on failure to activate
  ...
2017-03-26 11:15:54 -07:00
Linus Torvalds 9e54ef9da5 driver core fix for 4.11-rc4
Here is a single kernfs fix for 4.11-rc4 that resolves a reported issue.
 
 It has been in linux-next with no reported issues.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'driver-core-4.11-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core

Pull driver core fix from Greg KH:
 "Here is a single kernfs fix for 4.11-rc4 that resolves a reported
  issue.

  It has been in linux-next with no reported issues"

* tag 'driver-core-4.11-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core:
  kernfs: Check KERNFS_HAS_RELEASE before calling kernfs_release_file()
2017-03-26 11:05:42 -07:00
Linus Torvalds f1638fc65e TTY/Serial driver fixes for 4.11-rc4
Here are some tty and serial driver fixes for 4.11-rc4.  One of these
 fix a long-standing issue in the ldisc code that was found by Dmitry
 Vyukov with his great fuzzing work.  The other fixes resolve other
 reported issues, and there is one revert of a patch in 4.11-rc1 that
 wasn't correct.
 
 All of these have been in linux-next for a while with no reported
 issues.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'tty-4.11-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty

Pull tty/serial driver fixes from Greg KH:
 "Here are some tty and serial driver fixes for 4.11-rc4.

  One of these fix a long-standing issue in the ldisc code that was
  found by Dmitry Vyukov with his great fuzzing work. The other fixes
  resolve other reported issues, and there is one revert of a patch in
  4.11-rc1 that wasn't correct.

  All of these have been in linux-next for a while with no reported
  issues"

* tag 'tty-4.11-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty:
  tty: fix data race in tty_ldisc_ref_wait()
  tty: don't panic on OOM in tty_set_ldisc()
  Revert "tty: serial: pl011: add ttyAMA for matching pl011 console"
  tty: acpi/spcr: QDF2400 E44 checks for wrong OEM revision
  serial: 8250_dw: Fix breakage when HAVE_CLK=n
  serial: 8250_dw: Honor clk_round_rate errors in dw8250_set_termios
2017-03-26 11:03:42 -07:00
Linus Torvalds 53b4d5911d IIO fixes for 4.11-rc4
Here are some small IIO driver fixes for 4.11-rc4 that resolve a number
 of tiny reported issues.  All of these have been in linux-next for a
 while with no reported issues.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'staging-4.11-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging

Pull IIO driver fixes from Greg KH:
 "Here are some small IIO driver fixes for 4.11-rc4 that resolve a
  number of tiny reported issues. All of these have been in linux-next
  for a while with no reported issues"

* tag 'staging-4.11-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging:
  iio: imu: st_lsm6dsx: fix FIFO_CTRL2 overwrite during watermark configuration
  iio: adc: ti_am335x_adc: fix fifo overrun recovery
  iio: sw-device: Fix config group initialization
  iio: magnetometer: ak8974: remove incorrect __exit markups
  iio: hid-sensor-trigger: Change get poll value function order to avoid sensor properties losing after resume from S3
2017-03-26 11:02:00 -07:00
Linus Torvalds e431e0e427 USB/PHY fixes for 4.11-rc4
Here are a number of small USB and PHY driver fixes for 4.11-rc4.
 Nothing major here, just an bunch of small fixes, and a handfull of good
 fixes from Johan for devices with crazy descriptors.  There are a few
 new device ids in here as well.
 
 All of these have been in linux-next with no reported issues.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'usb-4.11-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb

Pull USB/PHY fixes from Greg KH:
 "Here are a number of small USB and PHY driver fixes for 4.11-rc4.

  Nothing major here, just an bunch of small fixes, and a handfull of
  good fixes from Johan for devices with crazy descriptors. There are a
  few new device ids in here as well.

  All of these have been in linux-next with no reported issues"

* tag 'usb-4.11-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (26 commits)
  usb: gadget: f_hid: fix: Don't access hidg->req without spinlock held
  usb: gadget: udc: remove pointer dereference after free
  usb: gadget: f_uvc: Sanity check wMaxPacketSize for SuperSpeed
  usb: gadget: f_uvc: Fix SuperSpeed companion descriptor's wBytesPerInterval
  usb: gadget: acm: fix endianness in notifications
  usb: dwc3: gadget: delay unmap of bounced requests
  USB: serial: qcserial: add Dell DW5811e
  usb: hub: Fix crash after failure to read BOS descriptor
  ACM gadget: fix endianness in notifications
  USB: usbtmc: fix probe error path
  USB: usbtmc: add missing endpoint sanity check
  USB: serial: option: add Quectel UC15, UC20, EC21, and EC25 modems
  usb: musb: fix possible spinlock deadlock
  usb: musb: dsps: fix iounmap in error and exit paths
  usb: musb: cppi41: don't check early-TX-interrupt for Isoch transfer
  usb-core: Add LINEAR_FRAME_INTR_BINTERVAL USB quirk
  uwb: i1480-dfu: fix NULL-deref at probe
  uwb: hwa-rc: fix NULL-deref at probe
  USB: wusbcore: fix NULL-deref at probe
  USB: uss720: fix NULL-deref at probe
  ...
2017-03-26 10:52:52 -07:00
Linus Torvalds 42234bf832 powerpc fixes for 4.11 #6
- cxl: Route eeh events to all slices for pci_channel_io_perm_failure state
  - powerpc/64s: Fix idle wakeup potential to clobber registers
  - Revert "powerpc/64: Disable use of radix under a hypervisor"
  - gcc-plugins: update architecture list in documentation
 
 Thanks to:
   Andrew Donnellan, Nicholas Piggin, Paul Mackerras, Vaibhav Jain.
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Merge tag 'powerpc-4.11-6' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux

Pull more powerpc fixes from Michael Ellerman:
 "These are all pretty minor. The fix for idle wakeup would be a bad bug
  but has not been observed in practice.

  The update to the gcc-plugins docs was Cc'ed to Kees and Jon, Kees
  OK'ed it going via powerpc and I didn't hear from Jon.

   - cxl: Route eeh events to all slices for pci_channel_io_perm_failure state

   - powerpc/64s: Fix idle wakeup potential to clobber registers

   - Revert "powerpc/64: Disable use of radix under a hypervisor"

   - gcc-plugins: update architecture list in documentation

  Thanks to: Andrew Donnellan, Nicholas Piggin, Paul Mackerras, Vaibhav
  Jain"

* tag 'powerpc-4.11-6' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
  gcc-plugins: update architecture list in documentation
  Revert "powerpc/64: Disable use of radix under a hypervisor"
  powerpc/64s: Fix idle wakeup potential to clobber registers
  cxl: Route eeh events to all slices for pci_channel_io_perm_failure state
2017-03-26 10:34:10 -07:00
Linus Torvalds 1c23de6308 Fix a memory leak on an error path, and two races when modifying
inodes relating to the inline_data and metadata checksum features.
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Merge tag 'ext4_for_linus_stable' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4

Pull ext4 fixes from Ted Ts'o:
 "Fix a memory leak on an error path, and two races when modifying
  inodes relating to the inline_data and metadata checksum features"

* tag 'ext4_for_linus_stable' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4:
  ext4: fix two spelling nits
  ext4: lock the xattr block before checksuming it
  jbd2: don't leak memory if setting up journal fails
  ext4: mark inode dirty after converting inline directory
2017-03-26 10:29:21 -07:00
Qiuxu Zhuo 819f60fb7d EDAC, pnd2_edac: Fix reported DIMM number
DIMM number passed to edac_mc_handle_error() was accidentally hardcoded
to zero. Pass in the correct daddr->dimm value.

Signed-off-by: Qiuxu Zhuo <qiuxu.zhuo@intel.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
2017-03-26 09:36:28 +02:00
Linus Torvalds a643f9054c A code cleanup and bugfix for fs/crypto.
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Merge tag 'fscrypt-for-linus_stable' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/fscrypt

Pull fscrypto fixes from Ted Ts'o:
 "A code cleanup and bugfix for fs/crypto"

* tag 'fscrypt-for-linus_stable' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/fscrypt:
  fscrypt: eliminate ->prepare_context() operation
  fscrypt: remove broken support for detecting keyring key revocation
2017-03-25 15:36:56 -07:00
Linus Torvalds a00da40fc7 hwmon fixes for v4.11-rc4
Bug fixes in asus_atk0110, it87 and max31790 drivers.
 Added missing API definition to hwmon core.
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Merge tag 'hwmon-for-linus-v4.11-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging

Pull hwmon fixes from Guenter Roeck:

 - bug fixes in asus_atk0110, it87 and max31790 drivers

 - added missing API definition to hwmon core

* tag 'hwmon-for-linus-v4.11-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging:
  hwmon: (asus_atk0110) fix uninitialized data access
  hwmon: Add missing HWMON_T_ALARM
  hwmon: (it87) Avoid registering the same chip on both SIO addresses
  hwmon: (max31790) Set correct PWM value
2017-03-25 15:31:50 -07:00
Linus Torvalds 4a01fa5e75 Fixups for -rc4 kernel
- Fix for dma_ops change in this kernel, resolving the s390, powerpc,
   and IOMMU operation
 - A few other oops fixes
 - The rest are all minor fixes
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma

Pull rdma fixes from Doug Ledford:
 "This has been a slow -rc cycle for the RDMA subsystem. We really
  haven't had a lot of rc fixes come in. This pull request is the first
  of this entire rc cycle and it has all of the suitable fixes so far
  and it's still only about 20 patches. The fix for the minor breakage
  cause by the dma mapping patchset is in here, as well as a couple
  other potential oops fixes, but the rest is more minor.

  Summary:

   - fix for dma_ops change in this kernel, resolving the s390, powerpc,
     and IOMMU operation

   - a few other oops fixes

   - the rest are all minor fixes"

* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma:
  IB/qib: fix false-postive maybe-uninitialized warning
  RDMA/iser: Fix possible mr leak on device removal event
  IB/device: Convert ib-comp-wq to be CPU-bound
  IB/cq: Don't process more than the given budget
  IB/rxe: increment msn only when completing a request
  uapi: fix rdma/mlx5-abi.h userspace compilation errors
  IB/core: Restore I/O MMU, s390 and powerpc support
  IB/rxe: Update documentation link
  RDMA/ocrdma: fix a type issue in ocrdma_put_pd_num()
  IB/rxe: double free on error
  RDMA/vmw_pvrdma: Activate device on ethernet link up
  RDMA/vmw_pvrdma: Dont hardcode QP header page
  RDMA/vmw_pvrdma: Cleanup unused variables
  infiniband: Fix alignment of mmap cookies to support VIPT caching
  IB/core: Protect against self-requeue of a cq work item
  i40iw: Receive netdev events post INET_NOTIFIER state
2017-03-25 15:25:58 -07:00
Linus Torvalds 4c3de7e5bf Merge branch 'stable-4.11' of git://git.infradead.org/users/pcmoore/audit
Pull audit fix from Paul Moore:
 "We've got an audit fix, and unfortunately it is big.

  While I'm not excited that we need to be sending you something this
  large during the -rcX phase, it does fix some very real, and very
  tangled, problems relating to locking, backlog queues, and the audit
  daemon connection.

  This code has passed our testsuite without problem and it has held up
  to my ad-hoc stress tests (arguably better than the existing code),
  please consider pulling this as fix for the next v4.11-rcX tag"

* 'stable-4.11' of git://git.infradead.org/users/pcmoore/audit:
  audit: fix auditd/kernel connection state tracking
2017-03-25 15:13:55 -07:00
Theodore Ts'o d67d64f423 ext4: fix two spelling nits
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
2017-03-25 17:33:31 -04:00
Theodore Ts'o dac7a4b4b1 ext4: lock the xattr block before checksuming it
We must lock the xattr block before calculating or verifying the
checksum in order to avoid spurious checksum failures.

https://bugzilla.kernel.org/show_bug.cgi?id=193661

Reported-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Cc: stable@vger.kernel.org
2017-03-25 17:22:47 -04:00
Linus Torvalds 424b6898c8 A handful of Sunxi and Rockchip clk driver fixes and a core framework
one where we need to copy a string because we can't guarantee it isn't
 freed sometime later.
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Merge tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux

Pull clk fixes from Stephen Boyd:
 "A handful of Sunxi and Rockchip clk driver fixes and a core framework
  one where we need to copy a string because we can't guarantee it isn't
  freed sometime later"

* tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux:
  clk: sunxi-ng: fix recalc_rate formula of NKMP clocks
  clk: sunxi-ng: Fix div/mult settings for osc12M on A64
  clk: rockchip: Make uartpll a child of the gpll on rk3036
  clk: rockchip: add "," to mux_pll_src_apll_dpll_gpll_usb480m_p on rk3036
  clk: core: Copy connection id
  dt-bindings: arm: update Armada CP110 system controller binding
  clk: sunxi-ng: sun6i: Fix enable bit offset for hdmi-ddc module clock
  clk: sunxi: ccu-sun5i needs nkmp
  clk: sunxi-ng: mp: Adjust parent rate for pre-dividers
2017-03-25 10:34:56 -07:00
Arnd Bergmann f6aafac184 IB/qib: fix false-postive maybe-uninitialized warning
aarch64-linux-gcc-7 complains about code it doesn't fully understand:

drivers/infiniband/hw/qib/qib_iba7322.c: In function 'qib_7322_txchk_change':
include/asm-generic/bitops/non-atomic.h:105:35: error: 'shadow' may be used uninitialized in this function [-Werror=maybe-uninitialized]

The code is right, and despite trying hard, I could not come up with a version
that I liked better than just adding a fake initialization here to shut up the
warning.

Fixes: f931551baf ("IB/qib: Add new qib driver for QLogic PCIe InfiniBand adapters")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Ira Weiny <ira.weiny@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-03-24 22:44:29 -04:00
Eric Biggers 869ab90f0a block: constify struct blk_integrity_profile
blk_integrity_profile's are never modified, so mark them 'const' so that
they are placed in .rodata and benefit from memory protection.

Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
2017-03-24 20:34:39 -06:00
Sagi Grimberg ea174c9573 RDMA/iser: Fix possible mr leak on device removal event
When the rdma device is removed, we must cleanup all
the rdma resources within the DEVICE_REMOVAL event
handler to let the device teardown gracefully. When
this happens with live I/O, some memory regions are
occupied. Thus, track them too and dereg all the mr's.

We are safe with mr access by iscsi_iser_cleanup_task.

Reported-by: Raju Rangoju <rajur@chelsio.com>
Signed-off-by: Sagi Grimberg <sagi@grimberg.me>
Reviewed-by: Max Gurtovoy <maxg@mellanox.com>
Reviewed-by: Max Gurtovoy <maxg@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-03-24 22:31:19 -04:00
Sagi Grimberg b7363e67b2 IB/device: Convert ib-comp-wq to be CPU-bound
This workqueue is used by our storage target mode ULPs
via the new CQ API. Recent observations when working
with very high-end flash storage devices reveal that
UNBOUND workqueue threads can migrate between cpu cores
and even numa nodes (although some numa locality is accounted
for).

While this attribute can be useful in some workloads,
it does not fit in very nicely with the normal
run-to-completion model we usually use in our target-mode
ULPs and the block-mq irq<->cpu affinity facilities.

The whole block-mq concept is that the completion will
land on the same cpu where the submission was performed.
The fact that our submitter thread is migrating cpus
can break this locality.

We assume that as a target mode ULP, we will serve multiple
initiators/clients and we can spread the load enough without
having to use unbound kworkers.

Also, while we're at it, expose this workqueue via sysfs which
is harmless and can be useful for debug.

Signed-off-by: Sagi Grimberg <sagi@grimberg.me>
Reviewed-by: Bart Van Assche <bart.vanassche@sandisk.com>--
Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-03-24 22:24:04 -04:00
Sagi Grimberg fedd9e1f75 IB/cq: Don't process more than the given budget
The caller might not want this overhead.

Reviewed-by: Bart Van Assche <bart.vanassche@sandisk.com>
Reviewed-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Sagi Grimberg <sagi@grimberg.me>
Reviewed-by: Yuval Shaia <yuval.shaia@oracle.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-03-24 22:19:48 -04:00
David Marchand 9fcd67d177 IB/rxe: increment msn only when completing a request
According to C9-147, MSN should only be incremented when the last packet of
a multi packet request has been received.

"Logically, the requester associates a sequential Send Sequence Number
(SSN) with each WQE posted to the send queue. The SSN bears a one-
to-one relationship to the MSN returned by the responder in each re-
sponse packet. Therefore, when the requester receives a response, it in-
terprets the MSN as representing the SSN of the most recent request
completed by the responder to determine which send WQE(s) can be
completed."

Fixes: 8700e3e7c4 ("Soft RoCE driver")

Signed-off-by: David Marchand <david.marchand@6wind.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-03-24 22:07:27 -04:00
Dmitry V. Levin 812755d69e uapi: fix rdma/mlx5-abi.h userspace compilation errors
Consistently use types from linux/types.h to fix the following
rdma/mlx5-abi.h userspace compilation errors:

/usr/include/rdma/mlx5-abi.h:69:25: error: 'u64' undeclared here (not in a function)
  MLX5_LIB_CAP_4K_UAR = (u64)1 << 0,
/usr/include/rdma/mlx5-abi.h:69:29: error: expected ',' or '}' before numeric constant
  MLX5_LIB_CAP_4K_UAR = (u64)1 << 0,

Include <linux/if_ether.h> to fix the following rdma/mlx5-abi.h
userspace compilation error:

/usr/include/rdma/mlx5-abi.h:286:12: error: 'ETH_ALEN' undeclared here (not in a function)
  __u8 dmac[ETH_ALEN];

Signed-off-by: Dmitry V. Levin <ldv@altlinux.org>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-03-24 22:01:35 -04:00
Bart Van Assche 0957c29f78 IB/core: Restore I/O MMU, s390 and powerpc support
Avoid that the following error message is reported on the console
while loading an RDMA driver with I/O MMU support enabled:

DMAR: Allocating domain for mlx5_0 failed

Ensure that DMA mapping operations that use to_pci_dev() to
access to struct pci_dev see the correct PCI device. E.g. the s390
and powerpc DMA mapping operations use to_pci_dev() even with I/O
MMU support disabled.

This patch preserves the following changes of the DMA mapping updates
patch series:
- Introduction of dma_virt_ops.
- Removal of ib_device.dma_ops.
- Removal of struct ib_dma_mapping_ops.
- Removal of an if-statement from each ib_dma_*() operation.
- IB HW drivers no longer set dma_device directly.

Reported-by: Sebastian Ott <sebott@linux.vnet.ibm.com>
Reported-by: Parav Pandit <parav@mellanox.com>
Fixes: commit 99db949403 ("IB/core: Remove ib_device.dma_device")
Signed-off-by: Bart Van Assche <bart.vanassche@sandisk.com>
Reviewed-by: parav@mellanox.com
Tested-by: parav@mellanox.com
Reviewed-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-03-24 21:51:16 -04:00
Leon Romanovsky a1c5dd1322 IB/rxe: Update documentation link
All Soft-RoCE (rxe) is handled now in rdma-core user space library,
so the documentation. The patch below updates the documentation
link to that new location.

Reported-by: Josh Beavers <josh.beavers@gmail.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Reviewed-by: Ira Weiny <ira.weiny@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-03-24 21:15:28 -04:00
Dan Carpenter 004d18ea99 RDMA/ocrdma: fix a type issue in ocrdma_put_pd_num()
We want to return zero on success or negative error codes.  The type
should be int and not u8.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Yuval Shaia <yuval.shaia@oracle.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-03-24 21:11:15 -04:00
Dan Carpenter ded2602353 IB/rxe: double free on error
"goto err;" has it's own kfree_skb() call so it's a double free.  We
only need to free on the "goto exit;" path.

Fixes: 8700e3e7c4 ("Soft RoCE driver")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-03-24 20:53:32 -04:00
Aditya Sarwade b172679b0d RDMA/vmw_pvrdma: Activate device on ethernet link up
Restore device state when ethernet link changes to active.

Acked-by: George Zhang <georgezhang@vmware.com>
Acked-by: Jorgen Hansen <jhansen@vmware.com>
Acked-by: Bryan Tan <bryantan@vmware.com>
Signed-off-by: Aditya Sarwade <asarwade@vmware.com>
Signed-off-by: Adit Ranadive <aditr@vmware.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-03-24 20:49:53 -04:00
Adit Ranadive e51c2fb033 RDMA/vmw_pvrdma: Dont hardcode QP header page
Moved the header page count to a macro.

Reported-by: Yuval Shaia <yuval.shaia@oracle.com>
Signed-off-by: Adit Ranadive <aditr@vmware.com>
Reviewed-by: Aditya Sarwade <asarwade@vmware.com>
Tested-by: Andrew Boyer <andrew.boyer@dell.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-03-24 20:49:53 -04:00
Adit Ranadive 6332dee83d RDMA/vmw_pvrdma: Cleanup unused variables
Removed the unused nreq and redundant index variables.
Moved hardcoded async and cq ring pages number to macro.

Reported-by: Yuval Shaia <yuval.shaia@oracle.com>
Signed-off-by: Adit Ranadive <aditr@vmware.com>
Reviewed-by: Aditya Sarwade <asarwade@vmware.com>
Tested-by: Andrew Boyer <andrew.boyer@dell.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-03-24 20:49:53 -04:00
Ratna Manoj Bolla abbbdf1249 nbd: replace kill_bdev() with __invalidate_device()
When a filesystem is mounted on a nbd device and on a disconnect, because
of kill_bdev(), and resetting bdev size to zero, buffer_head mappings are
getting destroyed under mounted filesystem.

After a bdev size reset(i.e bdev->bd_inode->i_size = 0) on a disconnect,
followed by a sys_umount(),
        generic_shutdown_super()->...
        ->__sync_blockdev()->...
        -blkdev_writepages()->...
        ->do_invalidatepage()->...
        -discard_buffer()   is discarding superblock buffer_head assumed
to be in mapped state by ext4_commit_super().

[mlin: ported to 4.11-rc2]
Signed-off-by: Ratna Manoj Bolla <manoj.br@gmail.com
Signed-off-by: Josef Bacik <jbacik@fb.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
2017-03-24 15:42:47 -06:00
Josef Bacik f858685503 nbd: set queue timeout properly
We can't just set the timeout on the tagset, we have to set it on the
queue as it would have been setup already at this point.

Signed-off-by: Josef Bacik <jbacik@fb.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
2017-03-24 15:42:47 -06:00
Josef Bacik c103b4dac8 nbd: set rq->errors to actual error code
We've been relying on the block layer to assume rq->errors being set
translates into -EIO.  I noticed in testing that sometimes this isn't
true, and really there's not much of a reason to have a counter instead
of just using -EIO.  So set it properly so we don't leak random numbers
to unsuspecting victims.

Signed-off-by: Josef Bacik <jbacik@fb.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
2017-03-24 15:42:47 -06:00
Josef Bacik 9dd5d3ab49 nbd: handle ERESTARTSYS properly
We can submit IO in a processes context, which means there can be
pending signals.  This isn't a fatal error for NBD, but it does require
some finesse.  If the signal happens before we transmit anything then we
are ok, just requeue the request and carry on.  However if we've done a
partial transmit we can't allow anything else to be transmitted on this
socket until we transmit the remaining part of the request.  Deal with
this by keeping track of how much we've sent for the current request,
and if we get an ERESTARTSYS during any part of our transmission save
the state of that request and requeue the IO.  If anybody tries to
submit a request that isn't our pending request then requeue that
request until we are able to service the one that is pending.

Signed-off-by: Josef Bacik <jbacik@fb.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
2017-03-24 15:42:47 -06:00
Jens Axboe 93efe9817e blk-mq: include errors in did_work calculation
Currently we return true in blk_mq_dispatch_rq_list() if we queued IO
successfully, but we really want to return whether or not the we made
progress. Progress includes if we got an error return.  If we don't,
this can lead to a hang in blk_mq_sched_dispatch_requests() when a
driver is draining IO by returning BLK_MQ_QUEUE_ERROR instead of
manually ending the IO in error and return BLK_MQ_QUEUE_OK.

Tested-by: Josef Bacik <josef@toxicpanda.com>
Reviewed-by: Bart Van Assche <bart.vanassche@sandisk.com>
Reviewed-by: Omar Sandoval <osandov@fb.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
2017-03-24 15:42:47 -06:00
Eric Biggers 1be7d2073e block: remove outdated part of blkdev_issue_flush() comment
blkdev_issue_flush() is now always synchronous, and it no longer has a
flags argument.  So remove the part of the comment about the WAIT flag.

Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
2017-03-24 15:41:30 -06:00
Eric Biggers e554911c23 block: correct documentation for blkdev_issue_discard() flags
BLKDEV_IFL_* flags no longer exist; blkdev_issue_discard() now actually
takes BLKDEV_DISCARD_* flags.

Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
2017-03-24 15:41:28 -06:00
Linus Torvalds d07c6f46c4 VFIO fixes for v4.11-rc4
- Rework sanity check for mdev driver group notifier de-registration
    (Alex Williamson)
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Merge tag 'vfio-v4.11-rc4' of git://github.com/awilliam/linux-vfio

Pull VFIO fix from Alex Williamson:
 "Rework sanity check for mdev driver group notifier de-registration
  (Alex Williamson)"

* tag 'vfio-v4.11-rc4' of git://github.com/awilliam/linux-vfio:
  vfio: Rework group release notifier warning
2017-03-24 14:39:36 -07:00
Linus Torvalds 04e904aa79 Merge branch 'for-linus' of git://git.kernel.dk/linux-block
Pull block fixes from Jens Axboe:
 "A few fixes for the current series that should go into -rc4. This
  contains:

   - a fix for a potential corruption of un-started requests from Ming.

   - a blk-stat fix from Omar, ensuring we flush the stat batch before
     checking nr_samples.

   - a set of fixes from Sagi for the nvmeof family"

* 'for-linus' of git://git.kernel.dk/linux-block:
  blk-mq: don't complete un-started request in timeout handler
  nvme-loop: handle cpu unplug when re-establishing the controller
  nvme-rdma: handle cpu unplug when re-establishing the controller
  nvmet-rdma: Fix a possible uninitialized variable dereference
  nvmet: confirm sq percpu has scheduled and switched to atomic
  nvme-loop: fix a possible use-after-free when destroying the admin queue
  blk-stat: fix blk_stat_sum() if all samples are batched
2017-03-24 14:37:12 -07:00
Linus Torvalds 59d9cb91d0 A fix for a writeback deadlock caused by a GFP_KERNEL allocation on the
reclaim path, tagged for stable.
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Merge tag 'ceph-for-4.11-rc4' of git://github.com/ceph/ceph-client

Pull ceph fix from Ilya Dryomov:
 "A fix for a writeback deadlock caused by a GFP_KERNEL allocation on
  the reclaim path, tagged for stable"

* tag 'ceph-for-4.11-rc4' of git://github.com/ceph/ceph-client:
  libceph: force GFP_NOIO for socket allocations
2017-03-24 14:35:39 -07:00
Linus Torvalds 2056b7c7df ARM: SoC fixes for v4.11
- A couple of OMAP 4.11 regression fixes, including a boot regression for
   SmartReflex, hypervisor mode in thumb2 mode, and reference counting of
   device nodes
 
 - A fix for cpu_idle on at91
 
 - Minor DT fixes on across several platforms:
   sunxi, bcm53xx, at91, nsp, ns2, ux500, omap
 
 - A fix to correct an API change in the reset controllers
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Merge tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC fixes from Arnd Bergmann:

 - a couple of OMAP 4.11 regression fixes, including a boot regression
   for SmartReflex, hypervisor mode in thumb2 mode, and reference
   counting of device nodes

 - a fix for cpu_idle on at91

 - minor DT fixes on across several platforms: sunxi, bcm53xx, at91,
   nsp, ns2, ux500, omap

 - a fix to correct an API change in the reset controllers

* tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (22 commits)
  arm64: dts: NS2: Add dma-coherent to relevant DT entries
  reset: fix optional reset_control_get stubs to return NULL
  ARM: sun8i: a23/a33: drop bl_en_pin GPIO pinmux in reference design DTSI
  ARM: dts: sun7i: lamobo-r1: Fix CPU port RGMII settings
  ARM: dts: NSP: GPIO reboot open-source
  ARM: at91: pm: cpu_idle: switch DDR to power-down mode
  ARM: dts: add the AB8500 clocks to the device tree
  ARM: dts: imx6sx-udoo-neo: Fix reboot hang
  ARM: sun8i: Fix the mali clock rate
  ARM: dts: BCM5301X: Correct GIC_PPI interrupt flags
  ARM: dts: BCM5301X: Fix memory start address
  ARM: dts: BCM5301X: Fix UARTs on bcm953012k
  Revert "ARM: at91/dt: sama5d2: Use new compatible for ohci node"
  ARM: OMAP2+: Release device node after it is no longer needed.
  ARM: OMAP2+: Fix device node reference counts
  ARM: OMAP2+: Remove legacy gpmc-nand.c
  ARM: OMAP2+: gpmc-onenand: propagate error on initialization failure
  ARM: dts: am335x-pcm953: Fix legacy wakeup source binding
  ARM: omap2plus_defconfig: Enable INPUT_MOUSEDEV as loadable modules
  ARM: dts: am57xx-idk: tpic2810 is on I2C bus, not SPI
  ...
2017-03-24 14:32:21 -07:00
Linus Torvalds 42ea16f815 xen: fix for 4.11 rc4
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Merge tag 'for-linus-4.11b-rc4-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip

Pull xen fixes from Juergen Gross:
 "Fixes for PM under Xen"

* tag 'for-linus-4.11b-rc4-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip:
  xen/acpi: upload PM state from init-domain to Xen
  xen/acpi: Replace hard coded "ACPI0007"
2017-03-24 14:29:23 -07:00