Commit Graph

678903 Commits

Author SHA1 Message Date
Sagi Grimberg
fdf9dfa850 nvme: move nr_reconnects to nvme_ctrl
It is not a user option but rather a variable controller
attribute.

Signed-off-by: Sagi Grimberg <sagi@grimberg.me>
Signed-off-by: Christoph Hellwig <hch@lst.de>
2017-06-15 14:29:49 +02:00
Sagi Grimberg
c669ccdc50 nvme: queue ns scanning and async request from nvme_wq
To suppress the warning triggered by nvme_uninit_ctrl:
kernel: [   50.350439] nvme nvme0: rescanning
kernel: [   50.363351] ------------[ cut here]------------
kernel: [   50.363396] WARNING: CPU: 1 PID: 37 at kernel/workqueue.c:2423 check_flush_dependency+0x11f/0x130
kernel: [   50.363409] workqueue: WQ_MEM_RECLAIM
nvme-wq:nvme_del_ctrl_work [nvme_core] is flushing !WQ_MEM_RECLAIM events:nvme_scan_work [nvme_core]

This was triggered with nvme-loop, but can happen with rdma/pci as well afaict.

Signed-off-by: Sagi Grimberg <sagi@grimberg.me>
Signed-off-by: Christoph Hellwig <hch@lst.de>
2017-06-15 14:29:48 +02:00
Sagi Grimberg
9a6327d2f2 nvme: Move transports to use nvme-core workqueue
Instead of each transport using it's own workqueue, export
a single nvme-core workqueue and use that instead.

In the future, this will help us moving towards some unification
if controller setup/teardown flows.

Signed-off-by: Sagi Grimberg <sagi@grimberg.me>
Signed-off-by: Christoph Hellwig <hch@lst.de>
2017-06-15 14:29:43 +02:00
Sagi Grimberg
c58bd1bf4d nvme: Don't allow to reset a reconnecting controller
The reset operation is guaranteed to fail for all scenarios
but the esoteric case where in the last reconnect attempt
concurrent with the reset we happen to successfully reconnect.

We just deny initiating a reset if we are reconnecting.

Signed-off-by: Sagi Grimberg <sagi@grimberg.me>
Signed-off-by: Christoph Hellwig <hch@lst.de>
2017-06-15 14:28:22 +02:00
Sagi Grimberg
b282a88d91 nvme-rdma: Get rid of CONNECTED state
We only care about if the queue is LIVE for request submission,
so no need for CONNECTED.

Signed-off-by: Sagi Grimberg <sagi@grimberg.me>
Signed-off-by: Christoph Hellwig <hch@lst.de>
2017-06-15 14:28:21 +02:00
Sagi Grimberg
abf87d5e9d nvme-rdma: rework rdma connection establishment error path
Instead of introducing a flag for if the queue is allocated,
simply free the rdma resources when we get the error.

We allocate the queue rdma resources when we have an address
resolution, their we allocate (or take a reference on) our device
so we should free it when we have error after the address resolution
namely:
1. route resolution error
2. connect reject
3. connect error
4. peer unreachable error

Signed-off-by: Sagi Grimberg <sagi@grimberg.me>
Signed-off-by: Christoph Hellwig <hch@lst.de>
2017-06-15 14:28:20 +02:00
Sagi Grimberg
ca6e95bb0a nvme-rdma: make nvme_rdma_[create|destroy]_queue_ib symmetrical
We put the reference on the device in the destroy routine
so we should lookup and take the reference in the create
routine.

Signed-off-by: Sagi Grimberg <sagi@grimberg.me>
Signed-off-by: Christoph Hellwig <hch@lst.de>
2017-06-15 14:28:19 +02:00
Sagi Grimberg
c8295d1112 nvme-rdma: Don't rearm the CQ when polling directly
We don't need it as the core polling context will take
are of rearming the completion queue.

Signed-off-by: Sagi Grimberg <sagi@grimberg.me>
Signed-off-by: Christoph Hellwig <hch@lst.de>
2017-06-15 14:28:18 +02:00
Sagi Grimberg
dc5bc6a9fe nvme-rdma: Make queue flags bit numbers and not shifts
bitops accept bit numbers.

Reported-by: Vijay Immanuel <vijayi@attalasystems.com>
Signed-off-by: Sagi Grimberg <sagi@grimberg.me>
Signed-off-by: Christoph Hellwig <hch@lst.de>
2017-06-15 14:28:17 +02:00
Sagi Grimberg
3dee63c7d9 nvme-rdma: get rid of unused ctrl lock
Signed-off-by: Sagi Grimberg <sagi@grimberg.me>
Signed-off-by: Christoph Hellwig <hch@lst.de>
2017-06-15 14:28:16 +02:00
Sagi Grimberg
a29001c53a nvme-loop: get rid of unused controller lock
Signed-off-by: Sagi Grimberg <sagi@grimberg.me>
Signed-off-by: Christoph Hellwig <hch@lst.de>
2017-06-15 14:28:14 +02:00
Christoph Hellwig
87ad72a59a nvme-pci: implement host memory buffer support
If a controller supports the host memory buffer we try to provide
it with the requested size up to an upper cap set as a module
parameter.  We try to give as few as possible descriptors, eventually
working our way down.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Keith Busch <keith.busch@intel.com>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Reviewed-by: Max Gurtovoy <maxg@mellanox.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
2017-06-15 14:28:13 +02:00
Christoph Hellwig
fe6d53c9c0 nvme: save hmpre and hmmin in struct nvme_ctrl
We'll need the later for the HMB support.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Keith Busch <keith.busch@intel.com>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
2017-06-13 11:45:35 +02:00
Arnav Dawn
b85cf7348a nvme.h: add dword 12 - 15 fields to struct nvme_features
Signed-off-by: Arnav Dawn <a.dawn@samsung.com>
[hch: split from a larger patch, new changelog]
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Keith Busch <keith.busch@intel.com>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
2017-06-13 11:45:34 +02:00
Christoph Hellwig
39673e1995 nvme.h: add struct nvme_host_mem_buf_desc and HMB flags
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Keith Busch <keith.busch@intel.com>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
2017-06-13 11:45:33 +02:00
Christoph Hellwig
fdd050b5b3 Merge branch 'uuid-types' of bombadil.infradead.org:public_git/uuid into nvme-base 2017-06-13 11:45:14 +02:00
Jens Axboe
f06345add9 blk-mq: fixup type of 'ret' in __blk_mq_try_issue_directly()
Should be a blk_status_t type, not an integer.

Signed-off-by: Jens Axboe <axboe@kernel.dk>
2017-06-12 11:22:46 -06:00
Christoph Hellwig
a104c9f22c nvme-rdma: fix merge error
The merge of 4.12-rc5 into the for-4.13/block tree didn't handle the queue
ready case correctly.  Fix this by propagating blk_status_t into
nvme_rdma_queue_is_ready.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@fb.com>
2017-06-12 10:43:12 -06:00
Jens Axboe
8f66439eec Linux 4.12-rc5
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Merge tag 'v4.12-rc5' into for-4.13/block

We've already got a few conflicts and upcoming work depends on some of the
changes that have gone into mainline as regression fixes for this series.

Pull in 4.12-rc5 to resolve these conflicts and make it easier on down stream
trees to continue working on 4.13 changes.

Signed-off-by: Jens Axboe <axboe@kernel.dk>
2017-06-12 08:30:13 -06:00
Linus Torvalds
32c1431eea Linux 4.12-rc5 2017-06-11 16:48:20 -07:00
Linus Torvalds
32627645e9 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security
Pull key subsystem fixes from James Morris:
 "Here are a bunch of fixes for Linux keyrings, including:

   - Fix up the refcount handling now that key structs use the
     refcount_t type and the refcount_t ops don't allow a 0->1
     transition.

   - Fix a potential NULL deref after error in x509_cert_parse().

   - Don't put data for the crypto algorithms to use on the stack.

   - Fix the handling of a null payload being passed to add_key().

   - Fix incorrect cleanup an uninitialised key_preparsed_payload in
     key_update().

   - Explicit sanitisation of potentially secure data before freeing.

   - Fixes for the Diffie-Helman code"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security: (23 commits)
  KEYS: fix refcount_inc() on zero
  KEYS: Convert KEYCTL_DH_COMPUTE to use the crypto KPP API
  crypto : asymmetric_keys : verify_pefile:zero memory content before freeing
  KEYS: DH: add __user annotations to keyctl_kdf_params
  KEYS: DH: ensure the KDF counter is properly aligned
  KEYS: DH: don't feed uninitialized "otherinfo" into KDF
  KEYS: DH: forbid using digest_null as the KDF hash
  KEYS: sanitize key structs before freeing
  KEYS: trusted: sanitize all key material
  KEYS: encrypted: sanitize all key material
  KEYS: user_defined: sanitize key payloads
  KEYS: sanitize add_key() and keyctl() key payloads
  KEYS: fix freeing uninitialized memory in key_update()
  KEYS: fix dereferencing NULL payload with nonzero length
  KEYS: encrypted: use constant-time HMAC comparison
  KEYS: encrypted: fix race causing incorrect HMAC calculations
  KEYS: encrypted: fix buffer overread in valid_master_desc()
  KEYS: encrypted: avoid encrypting/decrypting stack buffers
  KEYS: put keyring if install_session_keyring_to_cred() fails
  KEYS: Delete an error message for a failed memory allocation in get_derived_key()
  ...
2017-06-11 16:17:29 -07:00
Linus Torvalds
6d53cefb18 compiler, clang: properly override 'inline' for clang
Commit abb2ea7dfd ("compiler, clang: suppress warning for unused
static inline functions") just caused more warnings due to re-defining
the 'inline' macro.

So undef it before re-defining it, and also add the 'notrace' attribute
like the gcc version that this is overriding does.

Maybe this makes clang happier.

Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2017-06-11 15:51:56 -07:00
Linus Torvalds
5ad9345d23 Improve performance by using a lockless update mechanism suggested by
Linus, and make sure we refresh per-CPU entropy returned get_random_*
 as soon as the CRNG is initialized.
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Merge tag 'random_for_linus_stable' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/random

Pull randomness fixes from Ted Ts'o:
 "Improve performance by using a lockless update mechanism suggested by
  Linus, and make sure we refresh per-CPU entropy returned get_random_*
  as soon as the CRNG is initialized"

* tag 'random_for_linus_stable' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/random:
  random: invalidate batched entropy after crng init
  random: use lockless method of accessing and updating f->reg_idx
2017-06-11 12:02:01 -07:00
Linus Torvalds
5e38b72ac1 Fix various bug fixes in ext4 caused by races and memory allocation
failures.
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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 various bug fixes in ext4 caused by races and memory allocation
  failures"

* tag 'ext4_for_linus_stable' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4:
  ext4: fix fdatasync(2) after extent manipulation operations
  ext4: fix data corruption for mmap writes
  ext4: fix data corruption with EXT4_GET_BLOCKS_ZERO
  ext4: fix quota charging for shared xattr blocks
  ext4: remove redundant check for encrypted file on dio write path
  ext4: remove unused d_name argument from ext4_search_dir() et al.
  ext4: fix off-by-one error when writing back pages before dio read
  ext4: fix off-by-one on max nr_pages in ext4_find_unwritten_pgoff()
  ext4: keep existing extra fields when inode expands
  ext4: handle the rest of ext4_mb_load_buddy() ENOMEM errors
  ext4: fix off-by-in in loop termination in ext4_find_unwritten_pgoff()
  ext4: fix SEEK_HOLE
  jbd2: preserve original nofs flag during journal restart
  ext4: clear lockdep subtype for quota files on quota off
2017-06-11 11:57:47 -07:00
Linus Torvalds
f986e31bb4 A few overdue GPIO patches for the v4.12 kernel:
- Fix debounce logic on the Aspeed platform.
 
 - Fix the "virtual gpio" things on the Intel Crystal Cove.
 
 - Fix the blink counter selection on the MVEBU platform.
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Merge tag 'gpio-v4.12-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio

Pull GPIO fixes from Linus Walleij:
 "A few overdue GPIO patches for the v4.12 kernel.

   - Fix debounce logic on the Aspeed platform.

   - Fix the "virtual gpio" things on the Intel Crystal Cove.

   - Fix the blink counter selection on the MVEBU platform"

* tag 'gpio-v4.12-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio:
  gpio: mvebu: fix gpio bank registration when pwm is used
  gpio: mvebu: fix blink counter register selection
  MAINTAINERS: remove self from GPIO maintainers
  gpio: crystalcove: Do not write regular gpio registers for virtual GPIOs
  gpio: aspeed: Don't attempt to debounce if disabled
2017-06-11 11:34:27 -07:00
Linus Torvalds
9cd9cb0ba3 Char/Misc driver fixes for 4.12-rc5
Here are some small driver fixes for 4.12-rc5.  Nothing major here, just
 some small bugfixes found by people testing, and a MAINTAINERS file
 update for the genwqe driver.
 
 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-4.12-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc

Pull char/misc driver fixes from Greg KH:
 "Here are some small driver fixes for 4.12-rc5. Nothing major here,
  just some small bugfixes found by people testing, and a MAINTAINERS
  file update for the genwqe driver.

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

[ The cxl driver fix came in through the powerpc tree earlier ]

* tag 'char-misc-4.12-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc:
  cxl: Avoid double free_irq() for psl,slice interrupts
  mei: make sysfs modalias format similar as uevent modalias
  drivers: char: mem: Fix wraparound check to allow mappings up to the end
  MAINTAINERS: Change maintainer of genwqe driver
  goldfish_pipe: use GFP_ATOMIC under spin lock
  firmware: vpd: do not leak kobjects
  firmware: vpd: avoid potential use-after-free when destroying section
  firmware: vpd: do not leave freed section attributes to the list
2017-06-11 11:29:15 -07:00
Linus Torvalds
21c9eb7ca3 Staging/IIO fixes for 4.12-rc5
These are mostly all IIO driver fixes, resolving a number of tiny
 issues.  There's also a ccree and lustre fix in here as well, both
 fix problems found in those codebases.
 
 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 'staging-4.12-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging

Pull staging/IIO fixes from Greg KH:
 "These are mostly all IIO driver fixes, resolving a number of tiny
  issues. There's also a ccree and lustre fix in here as well, both fix
  problems found in those codebases.

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

* tag 'staging-4.12-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging:
  staging: ccree: fix buffer copy
  staging/lustre/lov: remove set_fs() call from lov_getstripe()
  staging: ccree: add CRYPTO dependency
  iio: adc: sun4i-gpadc-iio: fix parent device being used in devm function
  iio: light: ltr501 Fix interchanged als/ps register field
  iio: adc: bcm_iproc_adc: swap primary and secondary isr handler's
  iio: trigger: fix NULL pointer dereference in iio_trigger_write_current()
  iio: adc: max9611: Fix attribute measure unit
  iio: adc: ti_am335x_adc: allocating too much in probe
  iio: adc: sun4i-gpadc-iio: Fix module autoload when OF devices are registered
  iio: adc: sun4i-gpadc-iio: Fix module autoload when PLATFORM devices are registered
  iio: proximity: as3935: fix iio_trigger_poll issue
  iio: proximity: as3935: fix AS3935_INT mask
  iio: adc: Max9611: checking for ERR_PTR instead of NULL in probe
  iio: proximity: as3935: recalibrate RCO after resume
2017-06-11 11:25:51 -07:00
Linus Torvalds
246baac2fd USB fixes for 4.12-rc5
Here are some small USB fixes for 4.12-rc5
 
 They are for some reported issues in the chipidea and gadget drivers.
 Nothing major.  All 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 'usb-4.12-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb

Pull USB fixes from Greg KH:
 "Here are some small USB fixes for 4.12-rc5

  They are for some reported issues in the chipidea and gadget drivers.
  Nothing major. All have been in linux-next for a while with no
  reported issues"

* tag 'usb-4.12-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb:
  usb: gadget: udc: renesas_usb3: Fix PN_INT_ENA disabling timing
  usb: gadget: udc: renesas_usb3: lock for PN_ registers access
  usb: gadget: udc: renesas_usb3: fix deadlock by spinlock
  usb: gadget: udc: renesas_usb3: fix pm_runtime functions calling
  usb: gadget: f_mass_storage: Serialize wake and sleep execution
  usb: dwc2: add support for the DWC2 controller on Meson8 SoCs
  phy: qualcomm: phy-qcom-qmp: fix application of sizeof to pointer
  usb: musb: dsps: keep VBUS on for host-only mode
  usb: chipidea: core: check before accessing ci_role in ci_role_show
  usb: chipidea: debug: check before accessing ci_role
  phy: qcom-qmp: fix return value check in qcom_qmp_phy_create()
  usb: chipidea: udc: fix NULL pointer dereference if udc_start failed
  usb: chipidea: imx: Do not access CLKONOFF on i.MX51
2017-06-11 11:23:10 -07:00
Linus Torvalds
ef918d3c80 SCSI fixes on 20170610
This is a set of user visible fixes (excepting one format string
 change).  Four of the qla2xxx fixes only affect the firmware dump
 path, but it's still important to the enterprise.  The rest are
 various NULL pointer crash conditions or outright driver hangs.
 
 Signed-off-by: James E.J. Bottomley <jejb@linux.vnet.ibm.com>
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Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi

Pull SCSI fixes from James Bottomley:
 "This is a set of user visible fixes (excepting one format string
  change).

  Four of the qla2xxx fixes only affect the firmware dump path, but it's
  still important to the enterprise. The rest are various NULL pointer
  crash conditions or outright driver hangs"

* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
  scsi: cxgb4i: libcxgbi: in error case RST tcp conn
  scsi: scsi_debug: Avoid PI being disabled when TPGS is enabled
  scsi: qla2xxx: Fix extraneous ref on sp's after adapter break
  scsi: lpfc: prevent potential null pointer dereference
  scsi: lpfc: Avoid NULL pointer dereference in lpfc_els_abort()
  scsi: lpfc: nvmet_fc: fix format string
  scsi: qla2xxx: Fix crash due to NULL pointer dereference of ctx
  scsi: qla2xxx: Fix mailbox pointer error in fwdump capture
  scsi: qla2xxx: Set bit 15 for DIAG_ECHO_TEST MBC
  scsi: qla2xxx: Modify T262 FW dump template to specify same start/end to debug customer issues
  scsi: qla2xxx: Fix crash due to mismatch mumber of Q-pair creation for Multi queue
  scsi: qla2xxx: Fix NULL pointer access due to redundant fc_host_port_name call
  scsi: qla2xxx: Fix recursive loop during target mode configuration for ISP25XX leaving system unresponsive
  scsi: bnx2fc: fix race condition in bnx2fc_get_host_stats()
  scsi: qla2xxx: don't disable a not previously enabled PCI device
2017-06-11 11:21:08 -07:00
Linus Torvalds
8f56821d1d Merge branch 'libnvdimm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm
Pull libnvdimm fix from Dan Williams:
 "We expanded the device-dax fs type in 4.12 to be a generic provider of
  a struct dax_device with an embedded inode. However, Sasha found some
  basic negative testing was not run to verify that this fs cleanly
  handles being mounted directly.

  Note that the fresh rebase was done to remove an unnecessary Cc:
  <stable> tag, but this commit otherwise had a build success
  notification from the 0day robot."

* 'libnvdimm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm:
  device-dax: fix 'dax' device filesystem inode destruction crash
2017-06-11 11:15:09 -07:00
Linus Torvalds
9d66af6bbf Fix hexagon build error
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Merge tag 'hexagon-for-linus-v4.12-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging

Pull hexagon fix from Guenter Roeck:
 "This fixes a build error seen when building hexagon images.

  Richard sent me an Ack, but didn't reply when asked if he wants me to
  send the patch to you directly, so I figured I'd just do it"

* tag 'hexagon-for-linus-v4.12-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging:
  hexagon: Use raw_copy_to_user
2017-06-11 11:09:15 -07:00
Linus Torvalds
9d0eb46246 Bug fixes (ARM, s390, x86)
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm

Pull KVM fixes from Paolo Bonzini:
 "Bug fixes (ARM, s390, x86)"

* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
  KVM: async_pf: avoid async pf injection when in guest mode
  KVM: cpuid: Fix read/write out-of-bounds vulnerability in cpuid emulation
  arm: KVM: Allow unaligned accesses at HYP
  arm64: KVM: Allow unaligned accesses at EL2
  arm64: KVM: Preserve RES1 bits in SCTLR_EL2
  KVM: arm/arm64: Handle possible NULL stage2 pud when ageing pages
  KVM: nVMX: Fix exception injection
  kvm: async_pf: fix rcu_irq_enter() with irqs enabled
  KVM: arm/arm64: vgic-v3: Fix nr_pre_bits bitfield extraction
  KVM: s390: fix ais handling vs cpu model
  KVM: arm/arm64: Fix isues with GICv2 on GICv3 migration
2017-06-11 11:07:25 -07:00
Wanpeng Li
9bc1f09f6f KVM: async_pf: avoid async pf injection when in guest mode
INFO: task gnome-terminal-:1734 blocked for more than 120 seconds.
       Not tainted 4.12.0-rc4+ #8
 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
 gnome-terminal- D    0  1734   1015 0x00000000
 Call Trace:
  __schedule+0x3cd/0xb30
  schedule+0x40/0x90
  kvm_async_pf_task_wait+0x1cc/0x270
  ? __vfs_read+0x37/0x150
  ? prepare_to_swait+0x22/0x70
  do_async_page_fault+0x77/0xb0
  ? do_async_page_fault+0x77/0xb0
  async_page_fault+0x28/0x30

This is triggered by running both win7 and win2016 on L1 KVM simultaneously,
and then gives stress to memory on L1, I can observed this hang on L1 when
at least ~70% swap area is occupied on L0.

This is due to async pf was injected to L2 which should be injected to L1,
L2 guest starts receiving pagefault w/ bogus %cr2(apf token from the host
actually), and L1 guest starts accumulating tasks stuck in D state in
kvm_async_pf_task_wait() since missing PAGE_READY async_pfs.

This patch fixes the hang by doing async pf when executing L1 guest.

Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Radim Krčmář <rkrcmar@redhat.com>
Cc: stable@vger.kernel.org
Signed-off-by: Wanpeng Li <wanpeng.li@hotmail.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2017-06-11 08:39:24 +02:00
Guenter Roeck
4d801cca0b hexagon: Use raw_copy_to_user
Commit ac4691fac8 ("hexagon: switch to RAW_COPY_USER") replaced
__copy_to_user_hexagon() with raw_copy_to_user(), but did not catch
all callers, resulting in the following build error.

arch/hexagon/mm/uaccess.c: In function '__clear_user_hexagon':
arch/hexagon/mm/uaccess.c:40:3: error:
	implicit declaration of function '__copy_to_user_hexagon'

Fixes: ac4691fac8 ("hexagon: switch to RAW_COPY_USER")
Cc: Al Viro <viro@zeniv.linux.org.uk>
Acked-by: Al Viro <viro@zeniv.linux.org.uk>
Acked-by: Richard Kuo <rkuo@codeaurora.org>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2017-06-10 19:10:31 -07:00
Linus Torvalds
5faab9e0f0 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull UFS fixes from Al Viro:
 "This is just the obvious backport fodder; I'm pretty sure that there
  will be more - definitely so wrt performance and quite possibly
  correctness as well"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
  ufs: we need to sync inode before freeing it
  excessive checks in ufs_write_failed() and ufs_evict_inode()
  ufs_getfrag_block(): we only grab ->truncate_mutex on block creation path
  ufs_extend_tail(): fix the braino in calling conventions of ufs_new_fragments()
  ufs: set correct ->s_maxsize
  ufs: restore maintaining ->i_blocks
  fix ufs_isblockset()
  ufs: restore proper tail allocation
2017-06-10 11:09:23 -07:00
Linus Torvalds
66cea28a94 Merge branch 'for-linus-4.12' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs
Pull btrfs fixes from Chris Mason:
 "Some fixes that Dave Sterba collected.

  We've been hitting an early enospc problem on production machines that
  Omar tracked down to an old int->u64 mistake. I waited a bit on this
  pull to make sure it was really the problem from production, but it's
  on ~2100 hosts now and I think we're good.

  Omar also noticed a commit in the queue would make new early ENOSPC
  problems. I pulled that out for now, which is why the top three
  commits are younger than the rest.

  Otherwise these are all fixes, some explaining very old bugs that
  we've been poking at for a while"

* 'for-linus-4.12' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs:
  Btrfs: fix delalloc accounting leak caused by u32 overflow
  Btrfs: clear EXTENT_DEFRAG bits in finish_ordered_io
  btrfs: tree-log.c: Wrong printk information about namelen
  btrfs: fix race with relocation recovery and fs_root setup
  btrfs: fix memory leak in update_space_info failure path
  btrfs: use correct types for page indices in btrfs_page_exists_in_range
  btrfs: fix incorrect error return ret being passed to mapping_set_error
  btrfs: Make flush bios explicitely sync
  btrfs: fiemap: Cache and merge fiemap extent before submit it to user
2017-06-10 11:06:05 -07:00
Linus Torvalds
ac1a14a239 Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 fixes from Ingo Molnar:
 "Misc fixes: a Geode fix plus a microcode loader fix"

* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/microcode/intel: Clear patch pointer before jettisoning the initrd
  x86/cpu/cyrix: Add alternative Device ID of Geode GX1 SoC
2017-06-10 10:51:25 -07:00
Linus Torvalds
45b44f0f28 Merge branch 'smp-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull CPU hotplug fix from Ingo Molnar:
 "An error handling corner case fix"

* 'smp-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  cpu/hotplug: Drop the device lock on error
2017-06-10 10:49:42 -07:00
Linus Torvalds
6b7ed4588c Merge branch 'rcu-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull RCU fixes from Ingo Molnar:
 "Fix an SRCU bug affecting KVM IRQ injection"

* 'rcu-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  srcu: Allow use of Classic SRCU from both process and interrupt context
  srcu: Allow use of Tiny/Tree SRCU from both process and interrupt context
2017-06-10 10:22:35 -07:00
Linus Torvalds
f701d860af Merge branch 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull perf fixes from Ingo Molnar:
 "This is mostly tooling fixes, plus an instruction pointer filtering
  fix.

  It's more fixes than usual - Arnaldo got back from a longer vacation
  and there was a backlog"

* 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (27 commits)
  perf symbols: Kill dso__build_id_is_kmod()
  perf symbols: Keep DSO->symtab_type after decompress
  perf tests: Decompress kernel module before objdump
  perf tools: Consolidate error path in __open_dso()
  perf tools: Decompress kernel module when reading DSO data
  perf annotate: Use dso__decompress_kmodule_path()
  perf tools: Introduce dso__decompress_kmodule_{fd,path}
  perf tools: Fix a memory leak in __open_dso()
  perf annotate: Fix symbolic link of build-id cache
  perf/core: Drop kernel samples even though :u is specified
  perf script python: Remove dups in documentation examples
  perf script python: Updated trace_unhandled() signature
  perf script python: Fix wrong code snippets in documentation
  perf script: Fix documentation errors
  perf script: Fix outdated comment for perf-trace-python
  perf probe: Fix examples section of documentation
  perf report: Ensure the perf DSO mapping matches what libdw sees
  perf report: Include partial stacks unwound with libdw
  perf annotate: Add missing powerpc triplet
  perf test: Disable breakpoint signal tests for powerpc
  ...
2017-06-10 10:15:47 -07:00
Linus Torvalds
9376906c17 Merge branch 'efi-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull EFI fix from Ingo Molnar:
 "A boot crash fix for certain systems where the kernel would trust a
  piece of firmware data it should not have"

* 'efi-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  efi: Fix boot panic because of invalid BGRT image address
2017-06-10 10:12:14 -07:00
Al Viro
67a70017fa ufs: we need to sync inode before freeing it
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2017-06-10 12:02:28 -04:00
Linus Torvalds
179145e631 IOMMU Fixes for Linux v4.12-rc4
Including:
 
 	* Another compile-fix for my header cleanup
 
 	* A couple of fixes for the recently merged IOMMU probe
 	  deferal code
 
 	* Includes fixes for ACPI/IORT code necessary with
 	  IOMMU probe deferal
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Merge tag 'iommu-fixes-v4.12-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu

Pull IOMMU fixes from Joerg Roedel:

 - another compile-fix for my header cleanup

 - a couple of fixes for the recently merged IOMMU probe deferal code

 - fixes for ACPI/IORT code necessary with IOMMU probe deferal

* tag 'iommu-fixes-v4.12-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu:
  arm: dma-mapping: Reset the device's dma_ops
  ACPI/IORT: Move the check to get iommu_ops from translated fwspec
  ARM: dma-mapping: Don't tear down third-party mappings
  ACPI/IORT: Ignore all errors except EPROBE_DEFER
  iommu/of: Ignore all errors except EPROBE_DEFER
  iommu/of: Fix check for returning EPROBE_DEFER
  iommu/dma: Fix function declaration
2017-06-09 22:30:55 -07:00
Linus Torvalds
c7a1aefc47 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
Pull input fixes from Dmitry Torokhov:

 - mark "guest" RMI device as pass-through port to avoid "phantom" ALPS
   toouchpad on newer Lenovo Carbons

 - add two more laptops to the Elantech's lists of devices using CRC
   mode

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
  Input: synaptics-rmi4 - register F03 port as pass-through serio
  Input: elantech - add Fujitsu Lifebook E546/E557 to force crc_enabled
2017-06-09 22:28:33 -07:00
Linus Torvalds
2833b7e913 Merge tag 'md/4.12-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/shli/md
Pull MD bugfix from Shaohua Li:
 "One bug fix from Neil Brown for MD. The bug was introduced in this
  cycle"

* tag 'md/4.12-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/shli/md:
  md: initialise ->writes_pending in personality modules.
2017-06-09 22:24:23 -07:00
Linus Torvalds
42211f6cb6 Merge branch 'for-linus' of git://git.kernel.dk/linux-block
Pull block fixes from Jens Axboe:
 "A set of fixes in the area of block IO, that should go into the next
  -rc release. This contains:

   - An OOPS fix from Dmitry, fixing a regression with the bio integrity
     code in this series.

   - Fix truncation of elevator io context cache name, from Eric
     Biggers.

   - NVMe pull from Christoph includes FC fixes from James, APST
     fixes/tweaks from Kai-Heng, removal fix from Rakesh, and an RDMA
     fix from Sagi.

   - Two tweaks for the block throttling code. One from Joseph Qi,
     fixing an oops from the timer code, and one from Shaohua, improving
     the behavior on rotatonal storage.

   - Two blk-mq fixes from Ming, fixing corner cases with the direct
     issue code.

   - Locking fix for bfq cgroups from Paolo"

* 'for-linus' of git://git.kernel.dk/linux-block:
  block, bfq: access and cache blkg data only when safe
  Fix loop device flush before configure v3
  blk-throttle: set default latency baseline for harddisk
  blk-throttle: fix NULL pointer dereference in throtl_schedule_pending_timer
  nvme: relax APST default max latency to 100ms
  nvme: only consider exit latency when choosing useful non-op power states
  nvme-fc: fix missing put reference on controller create failure
  nvme-fc: on lldd/transport io error, terminate association
  nvme-rdma: fast fail incoming requests while we reconnect
  nvme-pci: fix multiple ctrl removal scheduling
  nvme: fix hang in remove path
  elevator: fix truncation of icq_cache_name
  blk-mq: fix direct issue
  blk-mq: pass correct hctx to blk_mq_try_issue_directly
  bio-integrity: Do not allocate integrity context for bio w/o data
2017-06-09 22:18:41 -07:00
Linus Torvalds
39e4edfdf5 sound fixes for 4.12-rc5
This update contains a slightly hight amount of changes due to the
 pending ASoC fixes.
 
 - ALSA timer core got a couple of fixes for races between read and
   ioctl, leading to potential read of uninitialized kmalloced memory
 - ASoC core fixed the de-registration pattern for use-after-free bug
 - The rewrite of probe code in ASoC Intel Skylake for i915 component
 - ASoC R-snd got a series of fixes for SSI
 - ASoC simple-card, atmel, da7213, and rt286 trivial fixes
 - HD-audio ALC269 quirk and rearrangement of quirk table
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Merge tag 'sound-4.12-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound

Pull sound fixes from Takashi Iwai:
 "This update contains a slightly hight amount of changes due to the
  pending ASoC fixes:

   - ALSA timer core got a couple of fixes for races between read and
     ioctl, leading to potential read of uninitialized kmalloced memory

   - ASoC core fixed the de-registration pattern for use-after-free bug

   - The rewrite of probe code in ASoC Intel Skylake for i915 component

   - ASoC R-snd got a series of fixes for SSI

   - ASoC simple-card, atmel, da7213, and rt286 trivial fixes

   - HD-audio ALC269 quirk and rearrangement of quirk table"

* tag 'sound-4.12-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
  ALSA: timer: Fix missing queue indices reset at SNDRV_TIMER_IOCTL_SELECT
  ALSA: timer: Fix race between read and ioctl
  ALSA: hda/realtek - Reorder ALC269 ASUS quirk entries
  ALSA: hda/realtek: Fix mic and headset jack sense on Asus X705UD
  ASoC: rsnd: fixup parent_clk_name of AUDIO_CLKOUTx
  ASoC: Intel: Skylake: Fix to parse consecutive string tkns in manifest
  ASoC: Intel: Skylake: Fix IPC rx_list corruption
  ASoC: rsnd: SSI PIO adjust to 24bit mode
  MAINTAINERS: Update email address for patches to Wolfson parts
  ASoC: Fix use-after-free at card unregistration
  ASoC: simple-card: fix mic jack initialization
  ASoC: rsnd: don't call free_irq() on Parent SSI
  ASoC: atmel-classd: sync regcache when resuming
  ASoC: rsnd: don't use PDTA bit for 24bit on SSI
  ASoC: da7213: Fix incorrect usage of bitwise '&' operator for SRM check
  rt286: add Thinkpad Helix 2 to force_combo_jack_table
  ASoC: Intel: Skylake: Move i915 registration to worker thread
2017-06-09 22:15:08 -07:00
Linus Torvalds
6107cc58f3 intel, nouveau, rockchip, vmwgfx, imx, meson, mediatek and core fixes
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Merge tag 'drm-fixes-for-v4.12-rc5' of git://people.freedesktop.org/~airlied/linux

Pull drm fixes from Dave Airlie:
 "Intel, nouveau, rockchip, vmwgfx, imx, meson, mediatek and core fixes.

  Bit more spread out fixes this time, fixes for 7 drivers + a couple of
  core fixes.

  i915 and vmwgfx are the main ones. The vmwgfx ones fix a bunch of
  regressions in their atomic rework, and a few fixes destined for
  stable. i915 has some 4.12 regressions and older things that need to
  be fixed in stable as well.

  nouveau also has some runtime pm fixes and a timer list handling fix,
  otherwise a couple of core and small driver regression fixes"

* tag 'drm-fixes-for-v4.12-rc5' of git://people.freedesktop.org/~airlied/linux: (37 commits)
  drm/i915: fix warning for unused variable
  drm/meson: Fix driver bind when only CVBS is available
  drm/i915: Fix 90/270 rotated coordinates for FBC
  drm/i915: Restore has_fbc=1 for ILK-M
  drm/i915: Workaround VLV/CHV DSI scanline counter hardware fail
  drm/i915: Fix logical inversion for gen4 quirking
  drm/i915: Guard against i915_ggtt_disable_guc() being invoked unconditionally
  drm/i915: Always recompute watermarks when distrust_bios_wm is set, v2.
  drm/i915: Prevent the system suspend complete optimization
  drm/i915/psr: disable psr2 for resolution greater than 32X20
  drm/i915: Hold a wakeref for probing the ring registers
  drm/i915: Short-circuit i915_gem_wait_for_idle() if already idle
  drm/i915: Disable decoupled MMIO
  drm/i915/guc: Remove stale comment for q_fail
  drm/vmwgfx: Bump driver minor and date
  drm/vmwgfx: Remove unused legacy cursor functions
  drm/vmwgfx: fix spelling mistake "exeeds" -> "exceeds"
  drm/vmwgfx: Fix large topology crash
  drm/vmwgfx: Make sure to update STDU when FB is updated
  drm/vmwgfx: Make sure backup_handle is always valid
  ...
2017-06-09 22:12:06 -07:00
Al Viro
babef37dcc excessive checks in ufs_write_failed() and ufs_evict_inode()
As it is, short copy in write() to append-only file will fail
to truncate the excessive allocated blocks.  As the matter of
fact, all checks in ufs_truncate_blocks() are either redundant
or wrong for that caller.  As for the only other caller
(ufs_evict_inode()), we only need the file type checks there.

Cc: stable@vger.kernel.org
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2017-06-09 16:28:01 -04:00
Al Viro
006351ac8e ufs_getfrag_block(): we only grab ->truncate_mutex on block creation path
Cc: stable@vger.kernel.org
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2017-06-09 16:28:01 -04:00