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25568 Commits
| Author | SHA1 | Message | Date | |
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 Roman Gushchin
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65f3975f35 |
cgroup: revert fa06235b8e ("cgroup: reset css on destruction")
Commit
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 Linus Torvalds
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e7d0c41ecc |
Merge tag 'devprop-4.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull device properties framework updates from Rafael Wysocki:
"These introduce fwnode operations for all of the separate types of
'firmware nodes' that can be handled by the device properties
framework, make the framework use const fwnode arguments all over, add
a helper for the consolidated handling of node references and switch
over the framework to the new UUID API.
Specifics:
- Introduce fwnode operations for all of the separate types of
'firmware nodes' that can be handled by the device properties
framework and drop the type field from struct fwnode_handle (Sakari
Ailus, Arnd Bergmann).
- Make the device properties framework use const fwnode arguments
where possible (Sakari Ailus).
- Add a helper for the consolidated handling of node references to
the device properties framework (Sakari Ailus).
- Switch over the ACPI part of the device properties framework to the
new UUID API (Andy Shevchenko)"
* tag 'devprop-4.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
ACPI: device property: Switch to use new generic UUID API
device property: export irqchip_fwnode_ops
device property: Introduce fwnode_property_get_reference_args
device property: Constify fwnode property API
device property: Constify argument to pset fwnode backend
ACPI: Constify internal fwnode arguments
ACPI: Constify acpi_bus helper functions, switch to macros
ACPI: Prepare for constifying acpi_get_next_subnode() fwnode argument
device property: Get rid of struct fwnode_handle type field
ACPI: Use IS_ERR_OR_NULL() instead of non-NULL check in is_acpi_data_node()
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Linus Torvalds
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439644096c |
Merge tag 'pm-4.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull power management updates from Rafael Wysocki:
"This time (again) cpufreq gets the majority of changes which mostly
are driver updates (including a major consolidation of intel_pstate),
some schedutil governor modifications and core cleanups.
There also are some changes in the system suspend area, mostly related
to diagnostics and debug messages plus some renames of things related
to suspend-to-idle. One major change here is that suspend-to-idle is
now going to be preferred over S3 on systems where the ACPI tables
indicate to do so and provide requsite support (the Low Power Idle S0
_DSM in particular). The system sleep documentation and the tools
related to it are updated too.
The rest is a few cpuidle changes (nothing major), devfreq updates,
generic power domains (genpd) framework updates and a few assorted
modifications elsewhere.
Specifics:
- Drop the P-state selection algorithm based on a PID controller from
intel_pstate and make it use the same P-state selection method
(based on the CPU load) for all types of systems in the active mode
(Rafael Wysocki, Srinivas Pandruvada).
- Rework the cpufreq core and governors to make it possible to take
cross-CPU utilization updates into account and modify the schedutil
governor to actually do so (Viresh Kumar).
- Clean up the handling of transition latency information in the
cpufreq core and untangle it from the information on which drivers
cannot do dynamic frequency switching (Viresh Kumar).
- Add support for new SoCs (MT2701/MT7623 and MT7622) to the mediatek
cpufreq driver and update its DT bindings (Sean Wang).
- Modify the cpufreq dt-platdev driver to autimatically create
cpufreq devices for the new (v2) Operating Performance Points (OPP)
DT bindings and update its whitelist of supported systems (Viresh
Kumar, Shubhrajyoti Datta, Marc Gonzalez, Khiem Nguyen, Finley
Xiao).
- Add support for Ux500 to the cpufreq-dt driver and drop the
obsolete dbx500 cpufreq driver (Linus Walleij, Arnd Bergmann).
- Add new SoC (R8A7795) support to the cpufreq rcar driver (Khiem
Nguyen).
- Fix and clean up assorted issues in the cpufreq drivers and core
(Arvind Yadav, Christophe Jaillet, Colin Ian King, Gustavo Silva,
Julia Lawall, Leonard Crestez, Rob Herring, Sudeep Holla).
- Update the IO-wait boost handling in the schedutil governor to make
it less aggressive (Joel Fernandes).
- Rework system suspend diagnostics to make it print fewer messages
to the kernel log by default, add a sysfs knob to allow more
suspend-related messages to be printed and add Low Power S0 Idle
constraints checks to the ACPI suspend-to-idle code (Rafael
Wysocki, Srinivas Pandruvada).
- Prefer suspend-to-idle over S3 on ACPI-based systems with the
ACPI_FADT_LOW_POWER_S0 flag set and the Low Power Idle S0 _DSM
interface present in the ACPI tables (Rafael Wysocki).
- Update documentation related to system sleep and rename a number of
items in the code to make it cleare that they are related to
suspend-to-idle (Rafael Wysocki).
- Export a variable allowing device drivers to check the target
system sleep state from the core system suspend code (Florian
Fainelli).
- Clean up the cpuidle subsystem to handle the polling state on x86
in a more straightforward way and to use %pOF instead of full_name
(Rafael Wysocki, Rob Herring).
- Update the devfreq framework to fix and clean up a few minor issues
(Chanwoo Choi, Rob Herring).
- Extend diagnostics in the generic power domains (genpd) framework
and clean it up slightly (Thara Gopinath, Rob Herring).
- Fix and clean up a couple of issues in the operating performance
points (OPP) framework (Viresh Kumar, Waldemar Rymarkiewicz).
- Add support for RV1108 to the rockchip-io Adaptive Voltage Scaling
(AVS) driver (David Wu).
- Fix the usage of notifiers in CPU power management on some
platforms (Alex Shi).
- Update the pm-graph system suspend/hibernation and boot profiling
utility (Todd Brandt).
- Make it possible to run the cpupower utility without CPU0 (Prarit
Bhargava)"
* tag 'pm-4.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (87 commits)
cpuidle: Make drivers initialize polling state
cpuidle: Move polling state initialization code to separate file
cpuidle: Eliminate the CPUIDLE_DRIVER_STATE_START symbol
cpufreq: imx6q: Fix imx6sx low frequency support
cpufreq: speedstep-lib: make several arrays static, makes code smaller
PM: docs: Delete the obsolete states.txt document
PM: docs: Describe high-level PM strategies and sleep states
PM / devfreq: Fix memory leak when fail to register device
PM / devfreq: Add dependency on PM_OPP
PM / devfreq: Move private devfreq_update_stats() into devfreq
PM / devfreq: Convert to using %pOF instead of full_name
PM / AVS: rockchip-io: add io selectors and supplies for RV1108
cpufreq: ti: Fix 'of_node_put' being called twice in error handling path
cpufreq: dt-platdev: Drop few entries from whitelist
cpufreq: dt-platdev: Automatically create cpufreq device with OPP v2
ARM: ux500: don't select CPUFREQ_DT
cpuidle: Convert to using %pOF instead of full_name
cpufreq: Convert to using %pOF instead of full_name
PM / Domains: Convert to using %pOF instead of full_name
cpufreq: Cap the default transition delay value to 10 ms
...
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Linus Torvalds
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bafb0762cb |
Merge tag 'char-misc-4.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
Pull char/misc driver updates from Greg KH:
"Here is the big char/misc driver update for 4.14-rc1.
Lots of different stuff in here, it's been an active development cycle
for some reason. Highlights are:
- updated binder driver, this brings binder up to date with what
shipped in the Android O release, plus some more changes that
happened since then that are in the Android development trees.
- coresight updates and fixes
- mux driver file renames to be a bit "nicer"
- intel_th driver updates
- normal set of hyper-v updates and changes
- small fpga subsystem and driver updates
- lots of const code changes all over the driver trees
- extcon driver updates
- fmc driver subsystem upadates
- w1 subsystem minor reworks and new features and drivers added
- spmi driver updates
Plus a smattering of other minor driver updates and fixes.
All of these have been in linux-next with no reported issues for a
while"
* tag 'char-misc-4.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (244 commits)
ANDROID: binder: don't queue async transactions to thread.
ANDROID: binder: don't enqueue death notifications to thread todo.
ANDROID: binder: Don't BUG_ON(!spin_is_locked()).
ANDROID: binder: Add BINDER_GET_NODE_DEBUG_INFO ioctl
ANDROID: binder: push new transactions to waiting threads.
ANDROID: binder: remove proc waitqueue
android: binder: Add page usage in binder stats
android: binder: fixup crash introduced by moving buffer hdr
drivers: w1: add hwmon temp support for w1_therm
drivers: w1: refactor w1_slave_show to make the temp reading functionality separate
drivers: w1: add hwmon support structures
eeprom: idt_89hpesx: Support both ACPI and OF probing
mcb: Fix an error handling path in 'chameleon_parse_cells()'
MCB: add support for SC31 to mcb-lpc
mux: make device_type const
char: virtio: constify attribute_group structures.
Documentation/ABI: document the nvmem sysfs files
lkdtm: fix spelling mistake: "incremeted" -> "incremented"
perf: cs-etm: Fix ETMv4 CONFIGR entry in perf.data file
nvmem: include linux/err.h from header
...
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Linus Torvalds
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04759194dc |
Merge tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Pull arm64 updates from Catalin Marinas:
- VMAP_STACK support, allowing the kernel stacks to be allocated in the
vmalloc space with a guard page for trapping stack overflows. One of
the patches introduces THREAD_ALIGN and changes the generic
alloc_thread_stack_node() to use this instead of THREAD_SIZE (no
functional change for other architectures)
- Contiguous PTE hugetlb support re-enabled (after being reverted a
couple of times). We now have the semantics agreed in the generic mm
layer together with API improvements so that the architecture code
can detect between contiguous and non-contiguous huge PTEs
- Initial support for persistent memory on ARM: DC CVAP instruction
exposed to user space (HWCAP) and the in-kernel pmem API implemented
- raid6 improvements for arm64: faster algorithm for the delta syndrome
and implementation of the recovery routines using Neon
- FP/SIMD refactoring and removal of support for Neon in interrupt
context. This is in preparation for full SVE support
- PTE accessors converted from inline asm to cmpxchg so that we can use
LSE atomics if available (ARMv8.1)
- Perf support for Cortex-A35 and A73
- Non-urgent fixes and cleanups
* tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: (75 commits)
arm64: cleanup {COMPAT_,}SET_PERSONALITY() macro
arm64: introduce separated bits for mm_context_t flags
arm64: hugetlb: Cleanup setup_hugepagesz
arm64: Re-enable support for contiguous hugepages
arm64: hugetlb: Override set_huge_swap_pte_at() to support contiguous hugepages
arm64: hugetlb: Override huge_pte_clear() to support contiguous hugepages
arm64: hugetlb: Handle swap entries in huge_pte_offset() for contiguous hugepages
arm64: hugetlb: Add break-before-make logic for contiguous entries
arm64: hugetlb: Spring clean huge pte accessors
arm64: hugetlb: Introduce pte_pgprot helper
arm64: hugetlb: set_huge_pte_at Add WARN_ON on !pte_present
arm64: kexec: have own crash_smp_send_stop() for crash dump for nonpanic cores
arm64: dma-mapping: Mark atomic_pool as __ro_after_init
arm64: dma-mapping: Do not pass data to gen_pool_set_algo()
arm64: Remove the !CONFIG_ARM64_HW_AFDBM alternative code paths
arm64: Ignore hardware dirty bit updates in ptep_set_wrprotect()
arm64: Move PTE_RDONLY bit handling out of set_pte_at()
kvm: arm64: Convert kvm_set_s2pte_readonly() from inline asm to cmpxchg()
arm64: Convert pte handling from inline asm to using (cmp)xchg
arm64: neon/efi: Make EFI fpsimd save/restore variables static
...
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Linus Torvalds
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f57091767a |
Merge branch 'x86-cache-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 cache quality monitoring update from Thomas Gleixner: "This update provides a complete rewrite of the Cache Quality Monitoring (CQM) facility. The existing CQM support was duct taped into perf with a lot of issues and the attempts to fix those turned out to be incomplete and horrible. After lengthy discussions it was decided to integrate the CQM support into the Resource Director Technology (RDT) facility, which is the obvious choise as in hardware CQM is part of RDT. This allowed to add Memory Bandwidth Monitoring support on top. As a result the mechanisms for allocating cache/memory bandwidth and the corresponding monitoring mechanisms are integrated into a single management facility with a consistent user interface" * 'x86-cache-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (37 commits) x86/intel_rdt: Turn off most RDT features on Skylake x86/intel_rdt: Add command line options for resource director technology x86/intel_rdt: Move special case code for Haswell to a quirk function x86/intel_rdt: Remove redundant ternary operator on return x86/intel_rdt/cqm: Improve limbo list processing x86/intel_rdt/mbm: Fix MBM overflow handler during CPU hotplug x86/intel_rdt: Modify the intel_pqr_state for better performance x86/intel_rdt/cqm: Clear the default RMID during hotcpu x86/intel_rdt: Show bitmask of shareable resource with other executing units x86/intel_rdt/mbm: Handle counter overflow x86/intel_rdt/mbm: Add mbm counter initialization x86/intel_rdt/mbm: Basic counting of MBM events (total and local) x86/intel_rdt/cqm: Add CPU hotplug support x86/intel_rdt/cqm: Add sched_in support x86/intel_rdt: Introduce rdt_enable_key for scheduling x86/intel_rdt/cqm: Add mount,umount support x86/intel_rdt/cqm: Add rmdir support x86/intel_rdt: Separate the ctrl bits from rmdir x86/intel_rdt/cqm: Add mon_data x86/intel_rdt: Prepare for RDT monitor data support ... |
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Linus Torvalds
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d725c7ac8b |
Merge branch 'smp-hotplug-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull CPU hotplug fix from Thomas Gleixner: "A single fix to handle the removal of the first dynamic CPU hotplug state correctly" * 'smp-hotplug-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: smp/hotplug: Handle removal correctly in cpuhp_store_callbacks() |
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Linus Torvalds
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93cc1228b4 |
Merge branch 'irq-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull irq updates from Thomas Gleixner:
"The interrupt subsystem delivers this time:
- Refactoring of the GIC-V3 driver to prepare for the GIC-V4 support
- Initial GIC-V4 support
- Consolidation of the FSL MSI support
- Utilize the effective affinity interface in various ARM irqchip
drivers
- Yet another interrupt chip driver (UniPhier AIDET)
- Bulk conversion of the irq chip driver to use %pOF
- The usual small fixes and improvements all over the place"
* 'irq-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (77 commits)
irqchip/ls-scfg-msi: Add MSI affinity support
irqchip/ls-scfg-msi: Add LS1043a v1.1 MSI support
irqchip/ls-scfg-msi: Add LS1046a MSI support
arm64: dts: ls1046a: Add MSI dts node
arm64: dts: ls1043a: Share all MSIs
arm: dts: ls1021a: Share all MSIs
arm64: dts: ls1043a: Fix typo of MSI compatible string
arm: dts: ls1021a: Fix typo of MSI compatible string
irqchip/ls-scfg-msi: Fix typo of MSI compatible strings
irqchip/irq-bcm7120-l2: Use correct I/O accessors for irq_fwd_mask
irqchip/mmp: Make mmp_intc_conf const
irqchip/gic: Make irq_chip const
irqchip/gic-v3: Advertise GICv4 support to KVM
irqchip/gic-v4: Enable low-level GICv4 operations
irqchip/gic-v4: Add some basic documentation
irqchip/gic-v4: Add VLPI configuration interface
irqchip/gic-v4: Add VPE command interface
irqchip/gic-v4: Add per-VM VPE domain creation
irqchip/gic-v3-its: Set implementation defined bit to enable VLPIs
irqchip/gic-v3-its: Allow doorbell interrupts to be injected/cleared
...
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Linus Torvalds
|
dd90cccffc |
Merge branch 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull timer fixes from Thomas Gleixner:
"A rather small update for the time(r) subsystem:
- A new clocksource driver IMX-TPM
- Minor fixes to the alarmtimer facility
- Device tree cleanups for Renesas drivers
- A new kselftest and fixes for the timer related tests
- Conversion of the clocksource drivers to use %pOF
- Use the proper helpers to access rlimits in the posix-cpu-timer
code"
* 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
alarmtimer: Ensure RTC module is not unloaded
clocksource: Convert to using %pOF instead of full_name
clocksource/drivers/bcm2835: Remove message for a memory allocation failure
devicetree: bindings: Remove deprecated properties
devicetree: bindings: Remove unused 32-bit CMT bindings
devicetree: bindings: Deprecate property, update example
devicetree: bindings: r8a73a4 and R-Car Gen2 CMT bindings
devicetree: bindings: R-Car Gen2 CMT0 and CMT1 bindings
devicetree: bindings: Remove sh7372 CMT binding
clocksource/drivers/imx-tpm: Add imx tpm timer support
dt-bindings: timer: Add nxp tpm timer binding doc
posix-cpu-timers: Use dedicated helper to access rlimit values
alarmtimer: Fix unavailable wake-up source in sysfs
timekeeping: Use proper timekeeper for debug code
kselftests: timers: set-timer-lat: Add one-shot timer test cases
kselftests: timers: set-timer-lat: Tweak reporting when timer fires early
kselftests: timers: freq-step: Fix build warning
kselftests: timers: freq-step: Define ADJ_SETOFFSET if device has older kernel headers
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Linus Torvalds
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b1b6f83ac9 |
Merge branch 'x86-mm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 mm changes from Ingo Molnar:
"PCID support, 5-level paging support, Secure Memory Encryption support
The main changes in this cycle are support for three new, complex
hardware features of x86 CPUs:
- Add 5-level paging support, which is a new hardware feature on
upcoming Intel CPUs allowing up to 128 PB of virtual address space
and 4 PB of physical RAM space - a 512-fold increase over the old
limits. (Supercomputers of the future forecasting hurricanes on an
ever warming planet can certainly make good use of more RAM.)
Many of the necessary changes went upstream in previous cycles,
v4.14 is the first kernel that can enable 5-level paging.
This feature is activated via CONFIG_X86_5LEVEL=y - disabled by
default.
(By Kirill A. Shutemov)
- Add 'encrypted memory' support, which is a new hardware feature on
upcoming AMD CPUs ('Secure Memory Encryption', SME) allowing system
RAM to be encrypted and decrypted (mostly) transparently by the
CPU, with a little help from the kernel to transition to/from
encrypted RAM. Such RAM should be more secure against various
attacks like RAM access via the memory bus and should make the
radio signature of memory bus traffic harder to intercept (and
decrypt) as well.
This feature is activated via CONFIG_AMD_MEM_ENCRYPT=y - disabled
by default.
(By Tom Lendacky)
- Enable PCID optimized TLB flushing on newer Intel CPUs: PCID is a
hardware feature that attaches an address space tag to TLB entries
and thus allows to skip TLB flushing in many cases, even if we
switch mm's.
(By Andy Lutomirski)
All three of these features were in the works for a long time, and
it's coincidence of the three independent development paths that they
are all enabled in v4.14 at once"
* 'x86-mm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (65 commits)
x86/mm: Enable RCU based page table freeing (CONFIG_HAVE_RCU_TABLE_FREE=y)
x86/mm: Use pr_cont() in dump_pagetable()
x86/mm: Fix SME encryption stack ptr handling
kvm/x86: Avoid clearing the C-bit in rsvd_bits()
x86/CPU: Align CR3 defines
x86/mm, mm/hwpoison: Clear PRESENT bit for kernel 1:1 mappings of poison pages
acpi, x86/mm: Remove encryption mask from ACPI page protection type
x86/mm, kexec: Fix memory corruption with SME on successive kexecs
x86/mm/pkeys: Fix typo in Documentation/x86/protection-keys.txt
x86/mm/dump_pagetables: Speed up page tables dump for CONFIG_KASAN=y
x86/mm: Implement PCID based optimization: try to preserve old TLB entries using PCID
x86: Enable 5-level paging support via CONFIG_X86_5LEVEL=y
x86/mm: Allow userspace have mappings above 47-bit
x86/mm: Prepare to expose larger address space to userspace
x86/mpx: Do not allow MPX if we have mappings above 47-bit
x86/mm: Rename tasksize_32bit/64bit to task_size_32bit/64bit()
x86/xen: Redefine XEN_ELFNOTE_INIT_P2M using PUD_SIZE * PTRS_PER_PUD
x86/mm/dump_pagetables: Fix printout of p4d level
x86/mm/dump_pagetables: Generalize address normalization
x86/boot: Fix memremap() related build failure
...
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Linus Torvalds
|
5f82e71a00 |
Merge branch 'locking-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull locking updates from Ingo Molnar: - Add 'cross-release' support to lockdep, which allows APIs like completions, where it's not the 'owner' who releases the lock, to be tracked. It's all activated automatically under CONFIG_PROVE_LOCKING=y. - Clean up (restructure) the x86 atomics op implementation to be more readable, in preparation of KASAN annotations. (Dmitry Vyukov) - Fix static keys (Paolo Bonzini) - Add killable versions of down_read() et al (Kirill Tkhai) - Rework and fix jump_label locking (Marc Zyngier, Paolo Bonzini) - Rework (and fix) tlb_flush_pending() barriers (Peter Zijlstra) - Remove smp_mb__before_spinlock() and convert its usages, introduce smp_mb__after_spinlock() (Peter Zijlstra) * 'locking-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (56 commits) locking/lockdep/selftests: Fix mixed read-write ABBA tests sched/completion: Avoid unnecessary stack allocation for COMPLETION_INITIALIZER_ONSTACK() acpi/nfit: Fix COMPLETION_INITIALIZER_ONSTACK() abuse locking/pvqspinlock: Relax cmpxchg's to improve performance on some architectures smp: Avoid using two cache lines for struct call_single_data locking/lockdep: Untangle xhlock history save/restore from task independence locking/refcounts, x86/asm: Disable CONFIG_ARCH_HAS_REFCOUNT for the time being futex: Remove duplicated code and fix undefined behaviour Documentation/locking/atomic: Finish the document... locking/lockdep: Fix workqueue crossrelease annotation workqueue/lockdep: 'Fix' flush_work() annotation locking/lockdep/selftests: Add mixed read-write ABBA tests mm, locking/barriers: Clarify tlb_flush_pending() barriers locking/lockdep: Make CONFIG_LOCKDEP_CROSSRELEASE and CONFIG_LOCKDEP_COMPLETIONS truly non-interactive locking/lockdep: Explicitly initialize wq_barrier::done::map locking/lockdep: Rename CONFIG_LOCKDEP_COMPLETE to CONFIG_LOCKDEP_COMPLETIONS locking/lockdep: Reword title of LOCKDEP_CROSSRELEASE config locking/lockdep: Make CONFIG_LOCKDEP_CROSSRELEASE part of CONFIG_PROVE_LOCKING locking/refcounts, x86/asm: Implement fast refcount overflow protection locking/lockdep: Fix the rollback and overwrite detection logic in crossrelease ... |
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Linus Torvalds
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f213a6c84c |
Merge branch 'sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull scheduler updates from Ingo Molnar:
"The main changes in this cycle were:
- fix affine wakeups (Peter Zijlstra)
- improve CPU onlining (and general bootup) scalability on systems
with ridiculous number (thousands) of CPUs (Peter Zijlstra)
- sched/numa updates (Rik van Riel)
- sched/deadline updates (Byungchul Park)
- sched/cpufreq enhancements and related cleanups (Viresh Kumar)
- sched/debug enhancements (Xie XiuQi)
- various fixes"
* 'sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (27 commits)
sched/debug: Optimize sched_domain sysctl generation
sched/topology: Avoid pointless rebuild
sched/topology, cpuset: Avoid spurious/wrong domain rebuilds
sched/topology: Improve comments
sched/topology: Fix memory leak in __sdt_alloc()
sched/completion: Document that reinit_completion() must be called after complete_all()
sched/autogroup: Fix error reporting printk text in autogroup_create()
sched/fair: Fix wake_affine() for !NUMA_BALANCING
sched/debug: Intruduce task_state_to_char() helper function
sched/debug: Show task state in /proc/sched_debug
sched/debug: Use task_pid_nr_ns in /proc/$pid/sched
sched/core: Remove unnecessary initialization init_idle_bootup_task()
sched/deadline: Change return value of cpudl_find()
sched/deadline: Make find_later_rq() choose a closer CPU in topology
sched/numa: Scale scan period with tasks in group and shared/private
sched/numa: Slow down scan rate if shared faults dominate
sched/pelt: Fix false running accounting
sched: Mark pick_next_task_dl() and build_sched_domain() as static
sched/cpupri: Don't re-initialize 'struct cpupri'
sched/deadline: Don't re-initialize 'struct cpudl'
...
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Linus Torvalds
|
9657752cb5 |
Merge branch 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull perf updates from Ingo Molnar:
"Kernel side changes:
- Add branch type profiling/tracing support. (Jin Yao)
- Add the PERF_SAMPLE_PHYS_ADDR ABI to allow the tracing/profiling of
physical memory addresses, where the PMU supports it. (Kan Liang)
- Export some PMU capability details in the new
/sys/bus/event_source/devices/cpu/caps/ sysfs directory. (Andi
Kleen)
- Aux data fixes and updates (Will Deacon)
- kprobes fixes and updates (Masami Hiramatsu)
- AMD uncore PMU driver fixes and updates (Janakarajan Natarajan)
On the tooling side, here's a (limited!) list of highlights - there
were many other changes that I could not list, see the shortlog and
git history for details:
UI improvements:
- Implement a visual marker for fused x86 instructions in the
annotate TUI browser, available now in 'perf report', more work
needed to have it available as well in 'perf top' (Jin Yao)
Further explanation from one of Jin's patches:
│ ┌──cmpl $0x0,argp_program_version_hook
81.93 │ ├──je 20
│ │ lock cmpxchg %esi,0x38a9a4(%rip)
│ │↓ jne 29
│ │↓ jmp 43
11.47 │20:└─→cmpxch %esi,0x38a999(%rip)
That means the cmpl+je is a fused instruction pair and they should
be considered together.
- Record the branch type and then show statistics and info about in
callchain entries (Jin Yao)
Example from one of Jin's patches:
# perf record -g -j any,save_type
# perf report --branch-history --stdio --no-children
38.50% div.c:45 [.] main div
|
---main div.c:42 (RET CROSS_2M cycles:2)
compute_flag div.c:28 (cycles:2)
compute_flag div.c:27 (RET CROSS_2M cycles:1)
rand rand.c:28 (cycles:1)
rand rand.c:28 (RET CROSS_2M cycles:1)
__random random.c:298 (cycles:1)
__random random.c:297 (COND_BWD CROSS_2M cycles:1)
__random random.c:295 (cycles:1)
__random random.c:295 (COND_BWD CROSS_2M cycles:1)
__random random.c:295 (cycles:1)
__random random.c:295 (RET CROSS_2M cycles:9)
namespaces support:
- Add initial support for namespaces, using setns to access files in
namespaces, grabbing their build-ids, etc. (Krister Johansen)
perf trace enhancements:
- Beautify pkey_{alloc,free,mprotect} arguments in 'perf trace'
(Arnaldo Carvalho de Melo)
- Add initial 'clone' syscall args beautifier in 'perf trace'
(Arnaldo Carvalho de Melo)
- Ignore 'fd' and 'offset' args for MAP_ANONYMOUS in 'perf trace'
(Arnaldo Carvalho de Melo)
- Beautifiers for the 'cmd' arg of several ioctl types, including:
sound, DRM, KVM, vhost virtio and perf_events. (Arnaldo Carvalho de
Melo)
- Add PERF_SAMPLE_CALLCHAIN and PERF_RECORD_MMAP[2] to 'perf data'
CTF conversion, allowing CTF trace visualization tools to show
callchains and to resolve symbols (Geneviève Bastien)
- Beautify the fcntl syscall, which is an interesting one in the
sense that infrastructure had to be put in place to change the
formatters of some arguments according to the value in a previous
one, i.e. cmd dictates how arg and the syscall return will be
formatted. (Arnaldo Carvalho de Melo
perf stat enhancements:
- Use group read for event groups in 'perf stat', reducing overhead
when groups are defined in the event specification, i.e. when using
{} to enclose a list of events, asking them to be read at the same
time, e.g.: "perf stat -e '{cycles,instructions}'" (Jiri Olsa)
pipe mode improvements:
- Process tracing data in 'perf annotate' pipe mode (David
Carrillo-Cisneros)
- Add header record types to pipe-mode, now this command:
$ perf record -o - -e cycles sleep 1 | perf report --stdio --header
Will show the same as in non-pipe mode, i.e. involving a perf.data
file (David Carrillo-Cisneros)
Vendor specific hardware event support updates/enhancements:
- Update POWER9 vendor events tables (Sukadev Bhattiprolu)
- Add POWER9 PMU events Sukadev (Bhattiprolu)
- Support additional POWER8+ PVR in PMU mapfile (Shriya)
- Add Skylake server uncore JSON vendor events (Andi Kleen)
- Support exporting Intel PT data to sqlite3 with python perf
scripts, this is in addition to the postgresql support that was
already there (Adrian Hunter)"
* 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (253 commits)
perf symbols: Fix plt entry calculation for ARM and AARCH64
perf probe: Fix kprobe blacklist checking condition
perf/x86: Fix caps/ for !Intel
perf/core, x86: Add PERF_SAMPLE_PHYS_ADDR
perf/core, pt, bts: Get rid of itrace_started
perf trace beauty: Beautify pkey_{alloc,free,mprotect} arguments
tools headers: Sync cpu features kernel ABI headers with tooling headers
perf tools: Pass full path of FEATURES_DUMP
perf tools: Robustify detection of clang binary
tools lib: Allow external definition of CC, AR and LD
perf tools: Allow external definition of flex and bison binary names
tools build tests: Don't hardcode gcc name
perf report: Group stat values on global event id
perf values: Zero value buffers
perf values: Fix allocation check
perf values: Fix thread index bug
perf report: Add dump_read function
perf record: Set read_format for inherit_stat
perf c2c: Fix remote HITM detection for Skylake
perf tools: Fix static build with newer toolchains
...
|
||
|
Linus Torvalds
|
0081a0ce80 |
Merge branch 'core-rcu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull RCU updates from Ingo Molnad: "The main RCU related changes in this cycle were: - Removal of spin_unlock_wait() - SRCU updates - RCU torture-test updates - RCU Documentation updates - Extend the sys_membarrier() ABI with the MEMBARRIER_CMD_PRIVATE_EXPEDITED variant - Miscellaneous RCU fixes - CPU-hotplug fixes" * 'core-rcu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (63 commits) arch: Remove spin_unlock_wait() arch-specific definitions locking: Remove spin_unlock_wait() generic definitions drivers/ata: Replace spin_unlock_wait() with lock/unlock pair ipc: Replace spin_unlock_wait() with lock/unlock pair exit: Replace spin_unlock_wait() with lock/unlock pair completion: Replace spin_unlock_wait() with lock/unlock pair doc: Set down RCU's scheduling-clock-interrupt needs doc: No longer allowed to use rcu_dereference on non-pointers doc: Add RCU files to docbook-generation files doc: Update memory-barriers.txt for read-to-write dependencies doc: Update RCU documentation membarrier: Provide expedited private command rcu: Remove exports from rcu_idle_exit() and rcu_idle_enter() rcu: Add warning to rcu_idle_enter() for irqs enabled rcu: Make rcu_idle_enter() rely on callers disabling irqs rcu: Add assertions verifying blocked-tasks list rcu/tracing: Set disable_rcu_irq_enter on rcu_eqs_exit() rcu: Add TPS() protection for _rcu_barrier_trace strings rcu: Use idle versions of swait to make idle-hack clear swait: Add idle variants which don't contribute to load average ... |
||
 Ingo Molnar
|
edc2988c54 |
Merge branch 'linus' into locking/core, to fix up conflicts
Conflicts: mm/page_alloc.c Signed-off-by: Ingo Molnar <mingo@kernel.org> |
||
 Rafael J. Wysocki
|
7b01463e51 |
Merge branch 'pm-sleep'
* pm-sleep: ACPI / PM: Check low power idle constraints for debug only PM / s2idle: Rename platform operations structure PM / s2idle: Rename ->enter_freeze to ->enter_s2idle PM / s2idle: Rename freeze_state enum and related items PM / s2idle: Rename PM_SUSPEND_FREEZE to PM_SUSPEND_TO_IDLE ACPI / PM: Prefer suspend-to-idle over S3 on some systems platform/x86: intel-hid: Wake up Dell Latitude 7275 from suspend-to-idle PM / suspend: Define pr_fmt() in suspend.c PM / suspend: Use mem_sleep_labels[] strings in messages PM / sleep: Put pm_test under CONFIG_PM_SLEEP_DEBUG PM / sleep: Check pm_wakeup_pending() in __device_suspend_noirq() PM / core: Add error argument to dpm_show_time() PM / core: Split dpm_suspend_noirq() and dpm_resume_noirq() PM / s2idle: Rearrange the main suspend-to-idle loop PM / timekeeping: Print debug messages when requested PM / sleep: Mark suspend/hibernation start and finish PM / sleep: Do not print debug messages by default PM / suspend: Export pm_suspend_target_state |
||
|
Rafael J. Wysocki
|
08a10002be |
Merge branch 'pm-cpufreq-sched'
* pm-cpufreq-sched: cpufreq: schedutil: Always process remote callback with slow switching cpufreq: schedutil: Don't restrict kthread to related_cpus unnecessarily cpufreq: Return 0 from ->fast_switch() on errors cpufreq: Simplify cpufreq_can_do_remote_dvfs() cpufreq: Process remote callbacks from any CPU if the platform permits sched: cpufreq: Allow remote cpufreq callbacks cpufreq: schedutil: Use unsigned int for iowait boost cpufreq: schedutil: Make iowait boost more energy efficient |
||
|
Rafael J. Wysocki
|
bd87c8fb9d |
Merge branch 'pm-cpufreq'
* pm-cpufreq: (33 commits) cpufreq: imx6q: Fix imx6sx low frequency support cpufreq: speedstep-lib: make several arrays static, makes code smaller cpufreq: ti: Fix 'of_node_put' being called twice in error handling path cpufreq: dt-platdev: Drop few entries from whitelist cpufreq: dt-platdev: Automatically create cpufreq device with OPP v2 ARM: ux500: don't select CPUFREQ_DT cpufreq: Convert to using %pOF instead of full_name cpufreq: Cap the default transition delay value to 10 ms cpufreq: dbx500: Delete obsolete driver mfd: db8500-prcmu: Get rid of cpufreq dependency cpufreq: enable the DT cpufreq driver on the Ux500 cpufreq: Loongson2: constify platform_device_id cpufreq: dt: Add r8a7796 support to to use generic cpufreq driver cpufreq: remove setting of policy->cpu in policy->cpus during init cpufreq: mediatek: add support of cpufreq to MT7622 SoC cpufreq: mediatek: add cleanups with the more generic naming cpufreq: rcar: Add support for R8A7795 SoC cpufreq: dt: Add rk3328 compatible to use generic cpufreq driver cpufreq: s5pv210: add missing of_node_put() cpufreq: Allow dynamic switching with CPUFREQ_ETERNAL latency ... |
||
|
Rafael J. Wysocki
|
45a7953c83 |
Merge branches 'pm-core', 'pm-opp', 'pm-domains', 'pm-cpu' and 'pm-avs'
* pm-core: PM / wakeup: Set power.can_wakeup if wakeup_sysfs_add() fails * pm-opp: PM / OPP: Fix get sharing CPUs when hotplug is used PM / OPP: OF: Use pr_debug() instead of pr_err() while adding OPP table * pm-domains: PM / Domains: Convert to using %pOF instead of full_name PM / Domains: Extend generic power domain debugfs PM / Domains: Add time accounting to various genpd states * pm-cpu: PM / CPU: replace raw_notifier with atomic_notifier * pm-avs: PM / AVS: rockchip-io: add io selectors and supplies for RV1108 |
||
|
Linus Torvalds
|
3b62dc6c38 |
Merge branch 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull timer fix from Thomas Gleixner: "A single fix for a thinko in the raw timekeeper update which causes clock MONOTONIC_RAW to run with erratically increased frequency" * 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: time: Fix ktime_get_raw() incorrect base accumulation |
||
|
Linus Torvalds
|
e92d51aff5 |
Merge branch 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull perf fixes from Thomas Gleixner: - Prevent a potential inconistency in the perf user space access which might lead to evading sanity checks. - Prevent perf recording function trace entries twice * 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: perf/ftrace: Fix double traces of perf on ftrace:function perf/core: Fix potential double-fetch bug |
||
|
Linus Torvalds
|
8cf9f2a29f |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Pull networking fixes from David Miller:
1) Fix handling of pinned BPF map nodes in hash of maps, from Daniel
Borkmann.
2) IPSEC ESP error paths leak memory, from Steffen Klassert.
3) We need an RCU grace period before freeing fib6_node objects, from
Wei Wang.
4) Must check skb_put_padto() return value in HSR driver, from FLorian
Fainelli.
5) Fix oops on PHY probe failure in ftgmac100 driver, from Andrew
Jeffery.
6) Fix infinite loop in UDP queue when using SO_PEEK_OFF, from Eric
Dumazet.
7) Use after free when tcf_chain_destroy() called multiple times, from
Jiri Pirko.
8) Fix KSZ DSA tag layer multiple free of SKBS, from Florian Fainelli.
9) Fix leak of uninitialized memory in sctp_get_sctp_info(),
inet_diag_msg_sctpladdrs_fill() and inet_diag_msg_sctpaddrs_fill().
From Stefano Brivio.
10) L2TP tunnel refcount fixes from Guillaume Nault.
11) Don't leak UDP secpath in udp_set_dev_scratch(), from Yossi
Kauperman.
12) Revert a PHY layer change wrt. handling of PHY_HALTED state in
phy_stop_machine(), it causes regressions for multiple people. From
Florian Fainelli.
13) When packets are sent out of br0 we have to clear the
offload_fwdq_mark value.
14) Several NULL pointer deref fixes in packet schedulers when their
->init() routine fails. From Nikolay Aleksandrov.
15) Aquantium devices cannot checksum offload correctly when the packet
is <= 60 bytes. From Pavel Belous.
16) Fix vnet header access past end of buffer in AF_PACKET, from
Benjamin Poirier.
17) Double free in probe error paths of nfp driver, from Dan Carpenter.
18) QOS capability not checked properly in DCB init paths of mlx5
driver, from Huy Nguyen.
19) Fix conflicts between firmware load failure and health_care timer in
mlx5, also from Huy Nguyen.
20) Fix dangling page pointer when DMA mapping errors occur in mlx5,
from Eran Ben ELisha.
21) ->ndo_setup_tc() in bnxt_en driver doesn't count rings properly,
from Michael Chan.
22) Missing MSIX vector free in bnxt_en, also from Michael Chan.
23) Refcount leak in xfrm layer when using sk_policy, from Lorenzo
Colitti.
24) Fix copy of uninitialized data in qlge driver, from Arnd Bergmann.
25) bpf_setsockopts() erroneously always returns -EINVAL even on
success. Fix from Yuchung Cheng.
26) tipc_rcv() needs to linearize the SKB before parsing the inner
headers, from Parthasarathy Bhuvaragan.
27) Fix deadlock between link status updates and link removal in netvsc
driver, from Stephen Hemminger.
28) Missed locking of page fragment handling in ESP output, from Steffen
Klassert.
29) Fix refcnt leak in ebpf congestion control code, from Sabrina
Dubroca.
30) sxgbe_probe_config_dt() doesn't check devm_kzalloc()'s return value,
from Christophe Jaillet.
31) Fix missing ipv6 rx_dst_cookie update when rx_dst is updated during
early demux, from Paolo Abeni.
32) Several info leaks in xfrm_user layer, from Mathias Krause.
33) Fix out of bounds read in cxgb4 driver, from Stefano Brivio.
34) Properly propagate obsolete state of route upwards in ipv6 so that
upper holders like xfrm can see it. From Xin Long.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (118 commits)
udp: fix secpath leak
bridge: switchdev: Clear forward mark when transmitting packet
mlxsw: spectrum: Forbid linking to devices that have uppers
wl1251: add a missing spin_lock_init()
Revert "net: phy: Correctly process PHY_HALTED in phy_stop_machine()"
net: dsa: bcm_sf2: Fix number of CFP entries for BCM7278
kcm: do not attach PF_KCM sockets to avoid deadlock
sch_tbf: fix two null pointer dereferences on init failure
sch_sfq: fix null pointer dereference on init failure
sch_netem: avoid null pointer deref on init failure
sch_fq_codel: avoid double free on init failure
sch_cbq: fix null pointer dereferences on init failure
sch_hfsc: fix null pointer deref and double free on init failure
sch_hhf: fix null pointer dereference on init failure
sch_multiq: fix double free on init failure
sch_htb: fix crash on init failure
net/mlx5e: Fix CQ moderation mode not set properly
net/mlx5e: Fix inline header size for small packets
net/mlx5: E-Switch, Unload the representors in the correct order
net/mlx5e: Properly resolve TC offloaded ipv6 vxlan tunnel source address
...
|
||
 Eric Biggers
|
355627f518 |
mm, uprobes: fix multiple free of ->uprobes_state.xol_area
Commit |
||
 Shaohua Li
|
22cf8bc6cb |
kernel/kthread.c: kthread_worker: don't hog the cpu
If the worker thread continues getting work, it will hog the cpu and rcu stall complains. Make it a good citizen. This is triggered in a loop block device test. Link: http://lkml.kernel.org/r/5de0a179b3184e1a2183fc503448b0269f24d75b.1503697127.git.shli@fb.com Signed-off-by: Shaohua Li <shli@fb.com> Cc: Petr Mladek <pmladek@suse.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Tejun Heo <tj@kernel.org> Cc: Oleg Nesterov <oleg@redhat.com> Cc: Ingo Molnar <mingo@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
||
 Alexandre Belloni
|
51218298a2 |
alarmtimer: Ensure RTC module is not unloaded
When registering the rtc device to be used to handle alarm timers, get_device is used to ensure the device doesn't go away but the module can still be unloaded. Call try_module_get to ensure the rtc driver will not go away. Reported-and-tested-by: Michal Simek <monstr@monstr.eu> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: John Stultz <john.stultz@linaro.org> Cc: Stephen Boyd <sboyd@codeaurora.org> Link: http://lkml.kernel.org/r/20170820220146.30969-1-alexandre.belloni@free-electrons.com |