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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull RCU updates from Ingo Molnar:
"The main changes in this cycle were:
- Expedited grace-period changes, most notably avoiding having user
threads drive expedited grace periods, using a workqueue instead.
- Miscellaneous fixes, including a performance fix for lists that was
sent with the lists modifications.
- CPU hotplug updates, most notably providing exact CPU-online
tracking for RCU. This will in turn allow removal of the checks
supporting RCU's prior heuristic that was based on the assumption
that CPUs would take no longer than one jiffy to come online.
- Torture-test updates.
- Documentation updates"
* 'core-rcu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (22 commits)
list: Expand list_first_entry_or_null()
torture: TOROUT_STRING(): Insert a space between flag and message
rcuperf: Consistently insert space between flag and message
rcutorture: Print out barrier error as document says
torture: Add task state to writer-task stall printk()s
torture: Convert torture_shutdown() to hrtimer
rcutorture: Convert to hotplug state machine
cpu/hotplug: Get rid of CPU_STARTING reference
rcu: Provide exact CPU-online tracking for RCU
rcu: Avoid redundant quiescent-state chasing
rcu: Don't use modular infrastructure in non-modular code
sched: Make wake_up_nohz_cpu() handle CPUs going offline
rcu: Use rcu_gp_kthread_wake() to wake up grace period kthreads
rcu: Use RCU's online-CPU state for expedited IPI retry
rcu: Exclude RCU-offline CPUs from expedited grace periods
rcu: Make expedited RCU CPU stall warnings respond to controls
rcu: Stop disabling expedited RCU CPU stall warnings
rcu: Drive expedited grace periods from workqueue
rcu: Consolidate expedited grace period machinery
documentation: Record reason for rcu_head two-byte alignment
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git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull ACPI updates from Rafael Wysocki:
"First off, the ACPICA code in the kernel is updated to upstream
revision 20160831 that brings in a few bug fixes and cleanups. In
particular, it is possible to mask GPEs now (and the sysfs interface
for GPE control is fixed on top of that), problems related to the
table loading mechanism are fixed and all code related to FADT version
2 (which has never been part of the ACPI specification) is dropped.
On the new features front, there is a new watchdog driver based on the
ACPI WDAT (ACPI Watchdog Action Table), needed on some platforms to
replace the iTCO watchdog that doesn't work there, and some UART
devices get new definitions of built-in properties (to be accessed via
the generic device properties API).
Also, included is a fix for an ACPI-related PCI resorces allocation
issue and a few problems in the EC driver and in the button and
battery drivers are fixed.
In addition to that, the ACPI CPPC library is updated to make batching
of requests sent over the PCC channel possible (which reduces the PCC
usage overhead substantially in some cases) and to support functional
fixed hardware (FFH) type of CPPC registers access (which will allow
CPPC to be used on x86 too in the future).
As usual, there are some assorted fixes and cleanups too.
Specifics:
- Update of the ACPICA code in the kernel to upstream revision
20160831 with the following major changes:
* New mechanism for GPE masking.
* Fixes for issues related to the LoadTable operator and table
loading.
* Fixes for issues related to so-called module-level code (MLC),
that is AML that doesn't belong to any methods.
* Change of the return value of the _OSI method to reflect the
Windows behavior.
* GAS (Generic Address Structure) support fix related to 32-bit
FADT addresses.
* Elimination of unnecessary FADT version 2 support.
* ACPI tools fixes and cleanups.
From Bob Moore, Lv Zheng, and Jung-uk Kim.
- ACPI sysfs interface updates to fix GPE handling (on top of the new
GPE masking mechanism in ACPICA) and issues related to table
loading (Lv Zheng).
- New watchdog driver based on the ACPI WDAT (ACPI Watchdog Action
Table), needed on some platforms to replace the iTCO watchdog that
doesn't work there and related updates of the intel_pmc_ipc,
i2c/i801 and MFD/lcp_ich drivers (Mika Westerberg).
- Driver core fix to prevent it from leaking secondary fwnode objects
during device removal (Lukas Wunner).
- New definitions of built-in properties for UART in ACPI-based x86
SoC drivers and a 8250_dw driver quirk for the APM X-Gene SoC
(Heikki Krogerus).
- New device ID for the Vulcan SPI controller and constification of
local strucures in the AMD SoC (APD) ACPI driver (Kamlakant Patel,
Julia Lawall).
- Fix for a bug causing the allocation of PCI resorces to fail if
ACPI-enumerated child platform devices are registered below the PCI
devices in question (Mika Westerberg).
- Change of the default polarity for PCI legacy IRQs to high on
systems booting wth ACPI on platforms with a GIC interrupt
controller model fixing the discrepancy between the specification
and HW behavior (Lorenzo Pieralisi).
- Fixes for the handling of system suspend/resume in the ACPI EC
driver and update of that driver to make it cope with the cases
when the EC device defined in the ECDT has to be used throughout
the entire system life cycle (Lv Zheng).
- Update of the ACPI CPPC library to allow it to batch requests sent
over the PCC channel (to reduce overhead), to support the fixed
functional hardware (FFH) CPPC registers access type, to notify the
mailbox framework about TX completions when the interrupt flag is
set for the PCC mailbox, and to support HW-Reduced Communication
Subspace type 2 (Ashwin Chaugule, Prashanth Prakash, Srinivas
Pandruvada, Hoan Tran).
- ACPI button driver fix and documentation update related to the
handling of laptop lids (Lv Zheng).
- ACPI battery driver initialization fix (Carlos Garnacho).
- ACPI GPIO enumeration documentation update (Mika Westerberg).
- Assorted updates of the core ACPI bus type code (Lukas Wunner, Lv
Zheng).
- Assorted cleanups of the ACPI table parsing code and the
x86-specific ACPI code (Al Stone).
- Fixes for assorted ACPI-related issues found in linux-next (Wei
Yongjun)"
* tag 'acpi-4.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (98 commits)
ACPI / documentation: Use recommended name in GPIO property names
watchdog: wdat_wdt: Fix warning for using 0 as NULL
watchdog: wdat_wdt: fix return value check in wdat_wdt_probe()
platform/x86: intel_pmc_ipc: Do not create iTCO watchdog when WDAT table exists
i2c: i801: Do not create iTCO watchdog when WDAT table exists
mfd: lpc_ich: Do not create iTCO watchdog when WDAT table exists
ACPI / bus: Adjust ACPI subsystem initialization for new table loading mode
ACPICA: Parser: Fix a regression in LoadTable support
ACPICA: Tables: Fix "UNLOAD" code path lock issues
ACPI / watchdog: Add support for WDAT hardware watchdog
ACPI / platform: Pay attention to parent device's resources
PCI: Add pci_find_resource()
ACPI / CPPC: Support PCC with interrupt flag
ACPI / sysfs: Update sysfs signature handling code
ACPI / sysfs: Fix an issue for LoadTable opcode
ACPICA: Tables: Fix a regression in acpi_tb_find_table()
ACPI / tables: Remove duplicated include from tables.c
ACPI / APD: constify local structures
x86: ACPI: make variable names clearer in acpi_parse_madt_lapic_entries()
x86: ACPI: remove extraneous white space after semicolon
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There are two separate issues that can lead to corrupted free space
trees.
1. The free space tree bitmaps had an endianness issue on big-endian
systems which is fixed by an earlier patch in this series.
2. btrfs-progs before v4.7.3 modified filesystems without updating the
free space tree.
To catch both of these issues at once, we need to force the free space
tree to be rebuilt. To do so, add a FREE_SPACE_TREE_VALID compat_ro bit.
If the bit isn't set, we know that it was either produced by a broken
big-endian kernel or may have been corrupted by btrfs-progs.
This also provides us with a way to add rudimentary read-write support
for the free space tree to btrfs-progs: it can just clear this bit and
have the kernel rebuild the free space tree.
Cc: stable@vger.kernel.org # 4.5+
Tested-by: Holger Hoffstätte <holger@applied-asynchrony.com>
Tested-by: Chandan Rajendra <chandan@linux.vnet.ibm.com>
Signed-off-by: Omar Sandoval <osandov@fb.com>
Signed-off-by: David Sterba <dsterba@suse.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull power management updates from Rafael Wysocki:
"Traditionally, cpufreq is the area with the greatest number of
changes, but there are fewer of them than last time. There also is
some activity in the generic power domains and the devfreq frameworks,
a couple of system suspend and hibernation fixes and some assorted
changes in other places.
One new feature is the cpufreq change to allow the scheduler to pass
hints to the governors' utilization update callbacks and some code
rework based on that. Another one is the support for domain removal in
the generic power domains framework. Also it is now possible to use
hibernation with PAGE_POISONING_ZERO enabled and devfreq supports the
RockChip DFI controller and the rk3399 DMC.
The rest of the changes is mostly fixes and cleanups in a number of
places.
Specifics:
- Add a mechanism for passing hints from the scheduler to cpufreq
governors via their utilization update callbacks and use it to
introduce "IOwait boosting" into the schedutil governor and
intel_pstate that will make them boost performance if the enqueued
task was previously waiting on I/O (Rafael Wysocki).
- Fix a schedutil governor problem that causes it to overestimate
utilization if SMT is in use (Steve Muckle).
- Update defconfigs trying to use the schedutil governor as a module
which is not possible any more (Javier Martinez Canillas).
- Update the intel_pstate's pstate_sample tracepoint to take "IOwait
boosting" into account (Srinivas Pandruvada).
- Fix a problem in the cpufreq core causing it to mishandle the
initialization of CPUs registered after the cpufreq driver (Viresh
Kumar, Rafael Wysocki).
- Make the cpufreq-dt driver support per-policy governor tunables,
clean it up and update its Kconfig description (Viresh Kumar).
- Add support for more ARM platforms to the cpufreq-dt driver
(Chanwoo Choi, Dave Gerlach, Geert Uytterhoeven).
- Make the cpufreq CPPC driver report frequencies in KHz to avoid
user space compatiblility issues (Al Stone, Hoan Tran).
- Clean up a few cpufreq drivers (st, kirkwood, SCPI) a bit (Colin
Ian King, Markus Elfring).
- Constify some local structures in the intel_pstate driver (Julia
Lawall).
- Add a Documentation/cpu-freq/ entry to MAINTAINERS (Jean Delvare).
- Add support for PM domain removal to the generic power domains
(genpd) framework, add new DT helper functions to it and make it
always enable debugfs support if available (Jon Hunter, Tomeu
Vizoso).
- Clean up the generic power domains (genpd) framework and make it
avoid measuring power-on and power-off latencies during system-wide
PM transitions (Ulf Hansson).
- Add support for the RockChip DFI controller and the rk3399 DMC to
the devfreq framework (Lin Huang, Axel Lin, Arnd Bergmann).
- Add COMPILE_TEST to the devfreq framework (Krzysztof Kozlowski,
Stephen Rothwell).
- Fix a minor issue in the exynos-ppmu devfreq driver and fix up
devfreq Kconfig indentation style (Wei Yongjun, Jisheng Zhang).
- Fix the system suspend interface to make suspend-to-idle work if
platform suspend operations have not been registered (Sudeep
Holla).
- Make it possible to use hibernation with PAGE_POISONING_ZERO
enabled (Anisse Astier).
- Increas the default timeout of the system suspend/resume watchdog
and make it depend on EXPERT (Chen Yu).
- Make the operating performance points (OPP) framework avoid using
OPPs that aren't supported by the platform and fix a build warning
in it (Dave Gerlach, Arnd Bergmann).
- Fix the ARM cpuidle driver's return value (Christophe Jaillet).
- Make the SmartReflex AVS (Adaptive Voltage Scaling) driver use more
common logging style (Joe Perches)"
* tag 'pm-4.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (58 commits)
PM / OPP: Don't support OPP if it provides supported-hw but platform does not
cpufreq: st: add missing \n to end of dev_err message
cpufreq: kirkwood: add missing \n to end of dev_err messages
PM / Domains: Rename pm_genpd_sync_poweron|poweroff()
PM / Domains: Don't measure latency of ->power_on|off() during system PM
PM / Domains: Remove redundant system PM callbacks
PM / Domains: Simplify detaching a device from its genpd
PM / devfreq: rk3399_dmc: Remove explictly regulator_put call in .remove
PM / devfreq: rockchip: add PM_DEVFREQ_EVENT dependency
PM / OPP: avoid maybe-uninitialized warning
PM / Domains: Allow holes in genpd_data.domains array
cpufreq: CPPC: Avoid overflow when calculating desired_perf
cpufreq: ti: Use generic platdev driver
cpufreq: intel_pstate: Add io_boost trace
partial revert of "PM / devfreq: Add COMPILE_TEST for build coverage"
cpufreq: intel_pstate: Use IOWAIT flag in Atom algorithm
cpufreq: schedutil: Add iowait boosting
cpufreq / sched: SCHED_CPUFREQ_IOWAIT flag to indicate iowait condition
PM / Domains: Add support for removing nested PM domains by provider
PM / Domains: Add support for removing PM domains
...
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Add a new fallocate mode flag that explicitly unshares blocks on
filesystems that support such features. The new flag can only
be used with an allocate-mode fallocate call.
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
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Introduce XFLAGs for the new XFS CoW extent size hint, and actually
plumb the CoW extent size hint into the fsxattr structure.
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
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git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Pull arm64 updates from Will Deacon:
"It's a bit all over the place this time with no "killer feature" to
speak of. Support for mismatched cache line sizes should help people
seeing whacky JIT failures on some SoCs, and the big.LITTLE perf
updates have been a long time coming, but a lot of the changes here
are cleanups.
We stray outside arch/arm64 in a few areas: the arch/arm/ arch_timer
workaround is acked by Russell, the DT/OF bits are acked by Rob, the
arch_timer clocksource changes acked by Marc, CPU hotplug by tglx and
jump_label by Peter (all CC'd).
Summary:
- Support for execute-only page permissions
- Support for hibernate and DEBUG_PAGEALLOC
- Support for heterogeneous systems with mismatches cache line sizes
- Errata workarounds (A53 843419 update and QorIQ A-008585 timer bug)
- arm64 PMU perf updates, including cpumasks for heterogeneous systems
- Set UTS_MACHINE for building rpm packages
- Yet another head.S tidy-up
- Some cleanups and refactoring, particularly in the NUMA code
- Lots of random, non-critical fixes across the board"
* tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: (100 commits)
arm64: tlbflush.h: add __tlbi() macro
arm64: Kconfig: remove SMP dependence for NUMA
arm64: Kconfig: select OF/ACPI_NUMA under NUMA config
arm64: fix dump_backtrace/unwind_frame with NULL tsk
arm/arm64: arch_timer: Use archdata to indicate vdso suitability
arm64: arch_timer: Work around QorIQ Erratum A-008585
arm64: arch_timer: Add device tree binding for A-008585 erratum
arm64: Correctly bounds check virt_addr_valid
arm64: migrate exception table users off module.h and onto extable.h
arm64: pmu: Hoist pmu platform device name
arm64: pmu: Probe default hw/cache counters
arm64: pmu: add fallback probe table
MAINTAINERS: Update ARM PMU PROFILING AND DEBUGGING entry
arm64: Improve kprobes test for atomic sequence
arm64/kvm: use alternative auto-nop
arm64: use alternative auto-nop
arm64: alternative: add auto-nop infrastructure
arm64: lse: convert lse alternatives NOP padding to use __nops
arm64: barriers: introduce nops and __nops macros for NOP sequences
arm64: sysreg: replace open-coded mrs_s/msr_s with {read,write}_sysreg_s
...
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* pci/hotplug:
x86/PCI: VMD: Request userspace control of PCIe hotplug indicators
PCI: pciehp: Allow exclusive userspace control of indicators
PCI: pciehp: Remove useless pciehp_get_latch_status() calls
PCI: pciehp: Clean up dmesg "Slot(%s)" messages
PCI: pciehp: Remove unnecessary guard
PCI: pciehp: Don't re-read Slot Status when handling surprise event
PCI: pciehp: Don't re-read Slot Status when queuing hotplug event
PCI: pciehp: Process all hotplug events before looking for new ones
PCI: pciehp: Return IRQ_NONE when we can't read interrupt status
PCI: pciehp: Rename pcie_isr() locals for clarity
PCI: pciehp: Clear attention LED on device add
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* pci/aer:
PCI/AER: Fix aer_probe() kernel-doc comment
PCI/AER: Cache capability position
PCI/AER: Avoid memory allocation in interrupt handling path
ACPI / APEI: Send correct severity to calculate AER severity
PCI/AER: Remove duplicate AER severity translation
PCI/AER: Remove aerdriver.forceload kernel parameter
PCI/AER: Remove aerdriver.nosourceid kernel parameter
x86/PCI: VMD: Add quirk for AER to ignore source ID
PCI/AER: Add bus flag to skip source ID matching
Conflicts:
drivers/pci/probe.c
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Signed-off-by: Yan, Zheng <zyan@redhat.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs
David Howells says:
====================
rxrpc: More fixes and adjustments
This set of patches contains some more fixes and adjustments:
(1) Actually display the retransmission indication previously added to the
tx_data trace.
(2) Switch to Congestion Avoidance mode properly at cwnd==ssthresh rather
than relying on detection during an overshoot and correction.
(3) Reduce ssthresh to the peer's declared receive window.
(4) The offset field in rxrpc_skb_priv can be dispensed with and the error
field is no longer used. Get rid of them.
(5) Keep the call timeouts as ktimes rather than jiffies to make it easier
to deal with RTT-based timeout values in future. Rounding to jiffies
is still necessary when the system timer is set.
(6) Fix the call timer handling to avoid retriggering of expired timeout
actions.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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skb_mpls_header is equivalent to mpls_hdr now. Use the existing helper
instead.
Signed-off-by: Jiri Benc <jbenc@redhat.com>
Acked-by: Pravin B Shelar <pshelar@ovn.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
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This will be also used by openvswitch.
Signed-off-by: Jiri Benc <jbenc@redhat.com>
Acked-by: David Ahern <dsa@cumulusnetworks.com>
Acked-by: Pravin B Shelar <pshelar@ovn.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
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In order to be able to lock a rproc driver implementations only when
used by a client, we must differ between the dereference operation of a
client and the implementation itself.
This patch brings no functional change.
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
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Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Conflicts:
drivers/dma/cppi41.c
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Three sets of overlapping changes. Nothing serious.
Signed-off-by: David S. Miller <davem@davemloft.net>
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Pull networking fixes from David Miller:
1) Fix wrong TCP checksums on MTU probing when checksum offloading is
disabled, from Douglas Caetano dos Santos.
2) Fix qdisc backlog updates in qfq and sfb schedulers, from Cong Wang.
3) Route lookup flow key protocol value is wrong in ip6gre_xmit_other(),
fix from Lance Richardson.
4) Scheduling while atomic in multicast routing code of ipv4 and ipv6,
fix from Nikolay Aleksandrov.
5) Fix packet alignment in fec driver, from Eric Nelson.
6) Fix perf regression in sctp due to struct layout and cache misses,
from Xin Long.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net:
sctp: fix the issue sctp_diag uses lock_sock in rcu_read_lock
sctp: change to check peer prsctp_capable when using prsctp polices
sctp: remove prsctp_param from sctp_chunk
sctp: move sent_count to the memory hole in sctp_chunk
tg3: Avoid NULL pointer dereference in tg3_io_error_detected()
act_ife: Fix false encoding
act_ife: Fix external mac header on encode
VSOCK: Don't dec ack backlog twice for rejected connections
Revert "net: ethernet: bcmgenet: use phydev from struct net_device"
net: fec: align IP header in hardware
net: fec: remove QUIRK_HAS_RACC from i.mx27
net: fec: remove QUIRK_HAS_RACC from i.mx25
ipmr, ip6mr: fix scheduling while atomic and a deadlock with ipmr_get_route
ip6_gre: fix flowi6_proto value in ip6gre_xmit_other()
tcp: fix a compile error in DBGUNDO()
tcp: fix wrong checksum calculation on MTU probing
sch_sfb: keep backlog updated with qlen
sch_qfq: keep backlog updated with qlen
can: dev: fix deadlock reported after bus-off
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Move common values and types used by ghash-generic to a new header file
so drivers can directly use ghash-generic as a fallback implementation.
Fixes: cc333cd68dfa ("crypto: vmx - Adding GHASH routines for VMX module")
Cc: stable@vger.kernel.org
Signed-off-by: Marcelo Cerri <marcelo.cerri@canonical.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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Add IB headers, defines, and accessors that are identical
in both qib and hfi1 into the core includes.
The accessors for be maintenance of __be64 fields since
alignment is potentially invalid and can differ based on
the presense of the GRH.
{hfi1,qib}_ib_headers will be ib_headers.
{hfi1,qib|_other_headers will be ib_other_headers.
Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Reviewed-by: Don Hiatt <don.hiatt@intel.com>
Signed-off-by: Mike Marciniszyn <mike.marciniszyn@intel.com>
Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
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* pm-devfreq:
PM / devfreq: rk3399_dmc: Remove explictly regulator_put call in .remove
PM / devfreq: rockchip: add PM_DEVFREQ_EVENT dependency
partial revert of "PM / devfreq: Add COMPILE_TEST for build coverage"
PM / devfreq: rockchip: add devfreq driver for rk3399 dmc
Documentation: bindings: add dt documentation for rk3399 dmc
PM / devfreq: event: support rockchip dfi controller
Documentation: bindings: add dt documentation for dfi controller
PM / devfreq: event: remove duplicate devfreq_event_get_drvdata()
PM / devfreq: fix Kconfig indent style
PM / devfreq: Add COMPILE_TEST for build coverage
PM / devfreq: exynos-ppmu: remove unneeded of_node_put()
* pm-sleep:
PM / Hibernate: allow hibernation with PAGE_POISONING_ZERO
PM / sleep: enable suspend-to-idle even without registered suspend_ops
PM / sleep: Increase default DPM watchdog timeout to 120
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* pm-cpufreq: (24 commits)
cpufreq: st: add missing \n to end of dev_err message
cpufreq: kirkwood: add missing \n to end of dev_err messages
cpufreq: CPPC: Avoid overflow when calculating desired_perf
cpufreq: ti: Use generic platdev driver
cpufreq: intel_pstate: Add io_boost trace
cpufreq: intel_pstate: Use IOWAIT flag in Atom algorithm
cpufreq: schedutil: Add iowait boosting
cpufreq / sched: SCHED_CPUFREQ_IOWAIT flag to indicate iowait condition
cpufreq: CPPC: Force reporting values in KHz to fix user space interface
cpufreq: create link to policy only for registered CPUs
intel_pstate: constify local structures
cpufreq: dt: Support governor tunables per policy
cpufreq: dt: Update kconfig description
cpufreq: dt: Remove unused code
MAINTAINERS: Add Documentation/cpu-freq/
cpufreq: dt: Add support for r8a7792
cpufreq / sched: ignore SMT when determining max cpu capacity
cpufreq: Drop unnecessary check from cpufreq_policy_alloc()
ARM: multi_v7_defconfig: Don't attempt to enable schedutil governor as module
ARM: exynos_defconfig: Don't attempt to enable schedutil governor as module
...
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* pm-domains:
PM / Domains: Rename pm_genpd_sync_poweron|poweroff()
PM / Domains: Don't measure latency of ->power_on|off() during system PM
PM / Domains: Remove redundant system PM callbacks
PM / Domains: Simplify detaching a device from its genpd
PM / Domains: Allow holes in genpd_data.domains array
PM / Domains: Add support for removing nested PM domains by provider
PM / Domains: Add support for removing PM domains
PM / Domains: Store the provider in the PM domain structure
PM / Domains: Prepare for adding support to remove PM domains
PM / Domains: Verify the PM domain is present when adding a provider
PM / Domains: Don't expose xlate and provider helper functions
PM / Domains: Don't expose generic_pm_domain structure to clients
staging: board: Remove calls to of_genpd_get_from_provider()
ARM: EXYNOS: Remove calls to of_genpd_get_from_provider()
PM / Domains: Add new helper functions for device-tree
PM / Domains: Always enable debugfs support if available
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* acpi-wdat:
watchdog: wdat_wdt: Fix warning for using 0 as NULL
watchdog: wdat_wdt: fix return value check in wdat_wdt_probe()
platform/x86: intel_pmc_ipc: Do not create iTCO watchdog when WDAT table exists
i2c: i801: Do not create iTCO watchdog when WDAT table exists
mfd: lpc_ich: Do not create iTCO watchdog when WDAT table exists
ACPI / watchdog: Add support for WDAT hardware watchdog
* acpi-ec:
ACPI / EC: Fix issues related to boot_ec
ACPI / EC: Fix a gap that ECDT EC cannot handle EC events
ACPI / EC: Fix a memory leakage issue in acpi_ec_add()
ACPI / EC: Cleanup first_ec/boot_ec code
ACPI / EC: Enable event freeze mode to improve event handling for suspend process
ACPI / EC: Add PM operations to improve event handling for suspend process
ACPI / EC: Add PM operations to improve event handling for resume process
ACPI / EC: Fix an issue that SCI_EVT cannot be detected after event is enabled
ACPI / EC: Add EC_FLAGS_QUERY_ENABLED to reveal a hidden logic
ACPI / EC: Add PM operations for suspend/resume noirq stage
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* acpi-x86:
x86: ACPI: make variable names clearer in acpi_parse_madt_lapic_entries()
x86: ACPI: remove extraneous white space after semicolon
* acpi-cppc:
ACPI / CPPC: Support PCC with interrupt flag
ACPI / CPPC: Add prefix cppc to cpudata structure name
ACPI / CPPC: Add support for functional fixed hardware address
ACPI / CPPC: Don't return on CPPC probe failure
ACPI / CPPC: Allow build with ACPI_CPU_FREQ_PSS config
ACPI / CPPC: check for error bit in PCC status field
ACPI / CPPC: move all PCC related information into pcc_data
ACPI / CPPC: add sysfs support to compute delivered performance
ACPI / CPPC: set a non-zero value for transition_latency
ACPI / CPPC: support for batching CPPC requests
ACPI / CPPC: acquire pcc_lock only while accessing PCC subspace
ACPI / CPPC: restructure read/writes for efficient sys mapped reg ops
mailbox: pcc: Support HW-Reduced Communication Subspace type 2
* acpi-soc:
ACPI / APD: constify local structures
ACPI / APD: Add device HID for Vulcan SPI controller
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* acpi-bus:
ACPI / bus: Adjust ACPI subsystem initialization for new table loading mode
ACPI / bus: Make acpi_get_first_physical_node() public
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* acpi-sysfs:
ACPI / sysfs: Update sysfs signature handling code
ACPI / sysfs: Fix an issue for LoadTable opcode
ACPI / sysfs: Use new GPE masking mechanism in GPE interface
* acpi-pci:
ACPI / platform: Pay attention to parent device's resources
PCI: Add pci_find_resource()
ACPI / PCI: fix GIC irq model default PCI IRQ polarity
* acpi-tables:
ACPI / tables: Remove duplicated include from tables.c
ACPI / tables: do not report the number of entries ignored by acpi_parse_entries()
ACPI / tables: fix acpi_parse_entries_array() so it traverses all subtables
ACPI / tables: fix incorrect counts returned by acpi_parse_entries_array()
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* acpica: (45 commits)
ACPICA: Parser: Fix a regression in LoadTable support
ACPICA: Tables: Fix "UNLOAD" code path lock issues
ACPICA: Tables: Fix a regression in acpi_tb_find_table()
ACPICA: Update version to 20160831
ACPICA: Tables: Tune table mutex to be a leaf lock
ACPICA: Dispatcher: Fix a mutex issue for method auto serialization
ACPICA: Namespace: Fix dynamic table loading issues
ACPICA: Namespace: Add acpi_ns_get_node_unlocked()
ACPICA: Interpreter: Fix MLC issues by switching to new term_list grammar for table loading
ACPICA: Update return value for intenal _OSI method
ACPICA: Tables: Override all 64-bit GAS fields when acpi_gbl_use32_bit_fadt_addresses is TRUE
ACPICA: Tables: Add new table events indicating table installation/uninstallation
ACPICA: Tables: Remove wrong table event macros
ACPICA: Tables: Remove acpi_tb_install_fixed_table()
ACPICA: Add a couple of casts to uthex.c
ACPICA: Cleanup for all string-to-integer conversions
ACPICA: Debugger: Add subcommand for predefined name execution
ACPICA: Update version to 20160729
ACPICA: OSL: Fix a regression that old GCC requires a workaround for strchr()
ACPICA: OSL: Cleanup the inclusion order of the compiler-specific headers
...
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git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Pull SCSI fix from James Bottomley:
"One final fix before 4.8.
There was a memory leak triggered by turning scsi mq off due to the
fact that we assume on host release that the already running hosts
weren't mq based because that's the state of the global flag (even
though they were).
Fix it by tracking this on a per host host basis"
* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
scsi: Avoid that toggling use_blk_mq triggers a memory leak
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Add a new INIT flag, FUSE_POSIX_ACL, for negotiating ACL support with
userspace. When it is set in the INIT response, ACL support will be
enabled. ACL support also implies "default_permissions".
When ACL support is enabled, the kernel will cache and have responsibility
for enforcing ACLs. ACL xattrs will be passed to userspace, which is
responsible for updating the ACLs in the filesystem, keeping the file mode
in sync, and inheritance of default ACLs when new filesystem nodes are
created.
Signed-off-by: Seth Forshee <seth.forshee@canonical.com>
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
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Only userspace filesystem can do the killing of suid/sgid without races.
So introduce an INIT flag and negotiate support for this.
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
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Before we add more libnvdimm-private fields to nd_mapping make it clear
which parameters are input vs libnvdimm internals. Use struct
nd_mapping_desc instead of struct nd_mapping in nd_region_desc and make
struct nd_mapping private to libnvdimm.
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
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nvdimm_clear_poison cleared the user-visible badblocks, and sent
commands to the NVDIMM to clear the areas marked as 'poison', but it
neglected to clear the same areas from the internal poison_list which is
used to marshal ARS results before sorting them by namespace. As a
result, once on-demand ARS functionality was added:
37b137f nfit, libnvdimm: allow an ARS scrub to be triggered on demand
A scrub triggered from either sysfs or an MCE was found to be adding
stale entries that had been cleared from gendisk->badblocks, but were
still present in nvdimm_bus->poison_list. Additionally, the stale entries
could be triggered into producing stale disk->badblocks by simply disabling
and re-enabling the namespace or region.
This adds the missing step of clearing poison_list entries when clearing
poison, so that it is always in sync with badblocks.
Fixes: 37b137f ("nfit, libnvdimm: allow an ARS scrub to be triggered on demand")
Signed-off-by: Vishal Verma <vishal.l.verma@intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
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This fixes commit d76eebfa175e ("include/linux/property.h: fix build
issues with gcc-4.4.4").
With that commit we get the following compile error when using the
PROPERTY_ENTRY_INTEGER_ARRAY macro.
include/linux/property.h:201:39: error: `u32_data' undeclared (first
use in this function)
PROPERTY_ENTRY_INTEGER_ARRAY(_name_, u32, _val_)
^
include/linux/property.h:193:17: note: in definition of macro
`PROPERTY_ENTRY_INTEGER_ARRAY'
{ .pointer = { _type_##_data = _val_ } }, \
^
This needs a '.' to reference the union member. It seems this was just
overlooked here since it is done correctly in similar constructs in
other parts of the original commit.
This fix is in preparation of upcoming commits that will use this macro.
Fixes: commit d76eebfa175e ("include/linux/property.h: fix build issues with gcc-4.4.4")
Link: http://lkml.kernel.org/r/2de3b929290d88a723ed829a3e3cbd02044714df.1475114627.git.johnyoun@synopsys.com
Signed-off-by: John Youn <johnyoun@synopsys.com>
Cc: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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replace_page_cache_page()
Antonio reports the following crash when using fuse under memory pressure:
kernel BUG at /build/linux-a2WvEb/linux-4.4.0/mm/workingset.c:346!
invalid opcode: 0000 [#1] SMP
Modules linked in: all of them
CPU: 2 PID: 63 Comm: kswapd0 Not tainted 4.4.0-36-generic #55-Ubuntu
Hardware name: System manufacturer System Product Name/P8H67-M PRO, BIOS 3904 04/27/2013
task: ffff88040cae6040 ti: ffff880407488000 task.ti: ffff880407488000
RIP: shadow_lru_isolate+0x181/0x190
Call Trace:
__list_lru_walk_one.isra.3+0x8f/0x130
list_lru_walk_one+0x23/0x30
scan_shadow_nodes+0x34/0x50
shrink_slab.part.40+0x1ed/0x3d0
shrink_zone+0x2ca/0x2e0
kswapd+0x51e/0x990
kthread+0xd8/0xf0
ret_from_fork+0x3f/0x70
which corresponds to the following sanity check in the shadow node
tracking:
BUG_ON(node->count & RADIX_TREE_COUNT_MASK);
The workingset code tracks radix tree nodes that exclusively contain
shadow entries of evicted pages in them, and this (somewhat obscure)
line checks whether there are real pages left that would interfere with
reclaim of the radix tree node under memory pressure.
While discussing ways how fuse might sneak pages into the radix tree
past the workingset code, Miklos pointed to replace_page_cache_page(),
and indeed there is a problem there: it properly accounts for the old
page being removed - __delete_from_page_cache() does that - but then
does a raw raw radix_tree_insert(), not accounting for the replacement
page. Eventually the page count bits in node->count underflow while
leaving the node incorrectly linked to the shadow node LRU.
To address this, make sure replace_page_cache_page() uses the tracked
page insertion code, page_cache_tree_insert(). This fixes the page
accounting and makes sure page-containing nodes are properly unlinked
from the shadow node LRU again.
Also, make the sanity checks a bit less obscure by using the helpers for
checking the number of pages and shadows in a radix tree node.
Fixes: 449dd6984d0e ("mm: keep page cache radix tree nodes in check")
Link: http://lkml.kernel.org/r/20160919155822.29498-1-hannes@cmpxchg.org
Signed-off-by: Johannes Weiner <hannes@cmpxchg.org>
Reported-by: Antonio SJ Musumeci <trapexit@spawn.link>
Debugged-by: Miklos Szeredi <miklos@szeredi.hu>
Cc: <stable@vger.kernel.org> [3.15+]
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Currently, a single hash algorithm is used to hash the auth_cred for
the credcache for all rpc_auth types. Add a hash_cred() function to
the rpc_authops struct to allow a hash function specific to each
auth flavor.
Signed-off-by: Frank Sorenson <sorenson@redhat.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
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CAI Qian <caiqian@redhat.com> pointed out that the semantics
of shared subtrees make it possible to create an exponentially
increasing number of mounts in a mount namespace.
mkdir /tmp/1 /tmp/2
mount --make-rshared /
for i in $(seq 1 20) ; do mount --bind /tmp/1 /tmp/2 ; done
Will create create 2^20 or 1048576 mounts, which is a practical problem
as some people have managed to hit this by accident.
As such CVE-2016-6213 was assigned.
Ian Kent <raven@themaw.net> described the situation for autofs users
as follows:
> The number of mounts for direct mount maps is usually not very large because of
> the way they are implemented, large direct mount maps can have performance
> problems. There can be anywhere from a few (likely case a few hundred) to less
> than 10000, plus mounts that have been triggered and not yet expired.
>
> Indirect mounts have one autofs mount at the root plus the number of mounts that
> have been triggered and not yet expired.
>
> The number of autofs indirect map entries can range from a few to the common
> case of several thousand and in rare cases up to between 30000 and 50000. I've
> not heard of people with maps larger than 50000 entries.
>
> The larger the number of map entries the greater the possibility for a large
> number of active mounts so it's not hard to expect cases of a 1000 or somewhat
> more active mounts.
So I am setting the default number of mounts allowed per mount
namespace at 100,000. This is more than enough for any use case I
know of, but small enough to quickly stop an exponential increase
in mounts. Which should be perfect to catch misconfigurations and
malfunctioning programs.
For anyone who needs a higher limit this can be changed by writing
to the new /proc/sys/fs/mount-max sysctl.
Tested-by: CAI Qian <caiqian@redhat.com>
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
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Previously, we used cp_version only to detect recoverable dnodes.
In order to avoid same garbage cp_version, we needed to truncate the next
dnode during checkpoint, resulting in additional discard or data write.
If we can distinguish this by using crc in addition to cp_version, we can
remove this overhead.
There is backward compatibility concern where it changes node_footer layout.
So, this patch introduces a new checkpoint flag, CP_CRC_RECOVERY_FLAG, to
detect new layout. New layout will be activated only when this flag is set.
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-next
ASoC: Updates for v4.9
Apart from the cleanups done by Morimoto-san this has very much been a
driver focused release with very little generic change:
- A big factoring out of the simple-card code to allow it to be shared
more with the rcar generic card from Kuninori Morimoto.
- Removal of some operations duplicated on the CODEC level, again by
Kuninori Morimoto.
- Lots more machine support for x86 systems.
- New drivers for Nuvoton NAU88C10, Realtek RT5660 and RT5663.
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'spi/topic/pxa2xx' and 'spi/topic/qup' into spi-next
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'spi/topic/jcore', 'spi/topic/loopback' and 'spi/topic/meson' into spi-next
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'regulator/topic/pv88080', 'regulator/topic/rk808', 'regulator/topic/set-voltage' and 'regulator/topic/tps65218' into regulator-next
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'regulator/topic/dbx500', 'regulator/topic/hi6421', 'regulator/topic/load' and 'regulator/topic/ltc3676' into regulator-next
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Keep that call timeouts as ktimes rather than jiffies so that they can be
expressed as functions of RTT.
Signed-off-by: David Howells <dhowells@redhat.com>
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