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Move the 4-byte `capabilities' field next to other 4-byte things.
Shrinks sizeof(backing_dev_info) by 8 bytes on x86_64.
Reviewed-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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We ran into a funky issue, where someone doing 256K buffered reads saw
128K requests at the device level. Turns out it is read-ahead capping
the request size, since we use 128K as the default setting. This
doesn't make a lot of sense - if someone is issuing 256K reads, they
should see 256K reads, regardless of the read-ahead setting, if the
underlying device can support a 256K read in a single command.
This patch introduces a bdi hint, io_pages. This is the soft max IO
size for the lower level, I've hooked it up to the bdev settings here.
Read-ahead is modified to issue the maximum of the user request size,
and the read-ahead max size, but capped to the max request size on the
device side. The latter is done to avoid reading ahead too much, if the
application asks for a huge read. With this patch, the kernel behaves
like the application expects.
Link: http://lkml.kernel.org/r/1479498073-8657-1-git-send-email-axboe@fb.com
Signed-off-by: Jens Axboe <axboe@fb.com>
Acked-by: Johannes Weiner <hannes@cmpxchg.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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The header uses types and definitions from the linux/init.h as well as
linux/types.h headers without explicitly including them. This causes a
failure to compile if they are not implicitly pulled in by includers.
Link: http://lkml.kernel.org/r/20161115133235.13387-1-thierry.reding@gmail.com
Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Mark dax vmas as not migratable to exclude them from task_numa_work().
This is especially relevant for device-dax which wants to ensure
predictable access latency and not incur periodic faults.
[akpm@linux-foundation.org: add comment]
Link: http://lkml.kernel.org/r/147892450132.22062.16875659431109209179.stgit@dwillia2-desk3.amr.corp.intel.com
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Reported-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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When movable nodes are enabled, any node containing only hotpluggable
memory is made movable at boot time.
On x86, hotpluggable memory is discovered by parsing the ACPI SRAT,
making corresponding calls to memblock_mark_hotplug().
If we introduce a dt property to describe memory as hotpluggable,
configs supporting early fdt may then also do this marking and use
movable nodes.
Link: http://lkml.kernel.org/r/1479160961-25840-5-git-send-email-arbab@linux.vnet.ibm.com
Signed-off-by: Reza Arbab <arbab@linux.vnet.ibm.com>
Tested-by: Balbir Singh <bsingharora@gmail.com>
Acked-by: Balbir Singh <bsingharora@gmail.com>
Cc: "Aneesh Kumar K.V" <aneesh.kumar@linux.vnet.ibm.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Alistair Popple <apopple@au1.ibm.com>
Cc: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Bharata B Rao <bharata@linux.vnet.ibm.com>
Cc: Frank Rowand <frowand.list@gmail.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Nathan Fontenot <nfont@linux.vnet.ibm.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Rob Herring <robh+dt@kernel.org>
Cc: Stewart Smith <stewart@linux.vnet.ibm.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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While doing MADV_DONTNEED on a large area of thp memory, I noticed we
encountered many unlikely() branches in profiles for each backing
hugepage. This is because zap_pmd_range() would call split_huge_pmd(),
which rechecked the conditions that were already validated, but as part
of an unlikely() branch.
Avoid the unlikely() branch when in a context where pmd is known to be
good for __split_huge_pmd() directly.
Link: http://lkml.kernel.org/r/alpine.DEB.2.10.1610181600300.84525@chino.kir.corp.google.com
Signed-off-by: David Rientjes <rientjes@google.com>
Acked-by: Vlastimil Babka <vbabka@suse.cz>
Cc: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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This limitation came with the reason to remove "another way for
malicious code to obscure a compromised program and masquerade as a
benign process" by allowing "security-concious program can use this
prctl once during its early initialization to ensure the prctl cannot
later be abused for this purpose":
http://marc.info/?l=linux-kernel&m=133160684517468&w=2
This explanation doesn't look sufficient. The only thing "exe" link is
indicating is the file, used to execve, which is basically nothing and
not reliable immediately after process has returned from execve system
call.
Moreover, to use this feture, all the mappings to previous exe file have
to be unmapped and all the new exe file permissions must be satisfied.
Which means, that changing exe link is very similar to calling execve on
the binary.
The need to remove this limitations comes from migration of NFS mount
point, which is not accessible during restore and replaced by other file
system. Because of this exe link has to be changed twice.
[akpm@linux-foundation.org: fix up comment]
Link: http://lkml.kernel.org/r/20160927153755.9337.69650.stgit@localhost.localdomain
Signed-off-by: Stanislav Kinsburskiy <skinsbursky@virtuozzo.com>
Acked-by: Oleg Nesterov <oleg@redhat.com>
Acked-by: Cyrill Gorcunov <gorcunov@openvz.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Kees Cook <keescook@chromium.org>
Cc: Andy Lutomirski <luto@amacapital.net>
Cc: John Stultz <john.stultz@linaro.org>
Cc: Matt Helsley <matthltc@us.ibm.com>
Cc: Pavel Emelyanov <xemul@virtuozzo.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: Eric W. Biederman <ebiederm@xmission.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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When commit fbae2d44aa1d ("kthread: add kthread_create_worker*()")
introduced some kthread_create_...() functions which were taking
printf-like parametter, it introduced __printf attributes to some
functions (e.g. kthread_create_worker()). Nevertheless some new
functions were forgotten (they have been detected thanks to
-Wmissing-format-attribute warning flag).
Add the missing __printf attributes to the newly-introduced functions in
order to detect formatting issues at build-time with -Wformat flag.
Link: http://lkml.kernel.org/r/20161126193543.22672-1-nicolas.iooss_linux@m4x.org
Signed-off-by: Nicolas Iooss <nicolas.iooss_linux@m4x.org>
Reviewed-by: Petr Mladek <pmladek@suse.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Add a flags parameter to send_cap_msg, so we can request expedited
service from the MDS when we know we'll be waiting on the result.
Set that flag in the case of try_flush_caps. The callers of that
function generally wait synchronously on the result, so it's beneficial
to ask the server to expedite it.
Signed-off-by: Jeff Layton <jlayton@redhat.com>
Reviewed-by: Yan, Zheng <zyan@redhat.com>
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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/tip/tip
Pull x86 FPU updates from Ingo Molnar:
"The main changes in this cycle were:
- do a large round of simplifications after all CPUs do 'eager' FPU
context switching in v4.9: remove CR0 twiddling, remove leftover
eager/lazy bts, etc (Andy Lutomirski)
- more FPU code simplifications: remove struct fpu::counter, clarify
nomenclature, remove unnecessary arguments/functions and better
structure the code (Rik van Riel)"
* 'x86-fpu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/fpu: Remove clts()
x86/fpu: Remove stts()
x86/fpu: Handle #NM without FPU emulation as an error
x86/fpu, lguest: Remove CR0.TS support
x86/fpu, kvm: Remove host CR0.TS manipulation
x86/fpu: Remove irq_ts_save() and irq_ts_restore()
x86/fpu: Stop saving and restoring CR0.TS in fpu__init_check_bugs()
x86/fpu: Get rid of two redundant clts() calls
x86/fpu: Finish excising 'eagerfpu'
x86/fpu: Split old_fpu & new_fpu handling into separate functions
x86/fpu: Remove 'cpu' argument from __cpu_invalidate_fpregs_state()
x86/fpu: Split old & new FPU code paths
x86/fpu: Remove __fpregs_(de)activate()
x86/fpu: Rename lazy restore functions to "register state valid"
x86/fpu, kvm: Remove KVM vcpu->fpu_counter
x86/fpu: Remove struct fpu::counter
x86/fpu: Remove use_eager_fpu()
x86/fpu: Remove the XFEATURE_MASK_EAGER/LAZY distinction
x86/fpu: Hard-disable lazy FPU mode
x86/crypto, x86/fpu: Remove X86_FEATURE_EAGER_FPU #ifdef from the crc32c code
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Update driver drv260x to use generic device properties so that it can be
used on non-DT systems. We also remove platform data as generic device
properties work on static board code as well.
Signed-off-by: Jingkui Wang <jkwang@google.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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The length of the reply is protocol-dependent - for cephx it's
ceph_x_authorize_reply. Nothing sensible can be passed from the
messenger layer anyway.
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
Reviewed-by: Sage Weil <sage@redhat.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull hotplug API fix from Ingo Molnar:
"Late breaking fix from the v4.9 cycle: fix a hotplug register/
unregister notifier API asymmetry bug that can cause kernel warnings
(and worse) with certain Kconfig combinations"
* 'smp-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
hotplug: Make register and unregister notifier API symmetric
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull scheduler updates from Ingo Molnar:
"The main scheduler changes in this cycle were:
- support Intel Turbo Boost Max Technology 3.0 (TBM3) by introducig a
notion of 'better cores', which the scheduler will prefer to
schedule single threaded workloads on. (Tim Chen, Srinivas
Pandruvada)
- enhance the handling of asymmetric capacity CPUs further (Morten
Rasmussen)
- improve/fix load handling when moving tasks between task groups
(Vincent Guittot)
- simplify and clean up the cputime code (Stanislaw Gruszka)
- improve mass fork()ed task spread a.k.a. hackbench speedup (Vincent
Guittot)
- make struct kthread kmalloc()ed and related fixes (Oleg Nesterov)
- add uaccess atomicity debugging (when using access_ok() in the
wrong context), under CONFIG_DEBUG_ATOMIC_SLEEP=y (Peter Zijlstra)
- implement various fixes, cleanups and other enhancements (Daniel
Bristot de Oliveira, Martin Schwidefsky, Rafael J. Wysocki)"
* 'sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (41 commits)
sched/core: Use load_avg for selecting idlest group
sched/core: Fix find_idlest_group() for fork
kthread: Don't abuse kthread_create_on_cpu() in __kthread_create_worker()
kthread: Don't use to_live_kthread() in kthread_[un]park()
kthread: Don't use to_live_kthread() in kthread_stop()
Revert "kthread: Pin the stack via try_get_task_stack()/put_task_stack() in to_live_kthread() function"
kthread: Make struct kthread kmalloc'ed
x86/uaccess, sched/preempt: Verify access_ok() context
sched/x86: Make CONFIG_SCHED_MC_PRIO=y easier to enable
sched/x86: Change CONFIG_SCHED_ITMT to CONFIG_SCHED_MC_PRIO
x86/sched: Use #include <linux/mutex.h> instead of #include <asm/mutex.h>
cpufreq/intel_pstate: Use CPPC to get max performance
acpi/bus: Set _OSC for diverse core support
acpi/bus: Enable HWP CPPC objects
x86/sched: Add SD_ASYM_PACKING flags to x86 ITMT CPU
x86/sysctl: Add sysctl for ITMT scheduling feature
x86: Enable Intel Turbo Boost Max Technology 3.0
x86/topology: Define x86's arch_update_cpu_topology
sched: Extend scheduler's asym packing
sched/fair: Clean up the tunable parameter definitions
...
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* acpi-tables:
ACPI / tebles: remove redundant declare of acpi_table_parse_entries()
* acpi-osi:
ACPI: Document _OSI and _REV for Linux BIOS writers
* acpi-osl:
ACPI / osl: Refactor acpi_os_get_root_pointer() to drop 'else':s
ACPI / osl: Propagate actual error code for kstrtoul()
* acpi-blacklist:
ACPI / blacklist: Make Dell Latitude 3350 ethernet work
ACPI / blacklist: add _REV quirks for Dell Precision 5520 and 3520
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* pm-sleep:
PM / sleep: Print active wakeup sources when blocking on wakeup_count reads
x86/suspend: fix false positive KASAN warning on suspend/resume
PM / sleep / ACPI: Use the ACPI_FADT_LOW_POWER_S0 flag
PM / sleep: System sleep state selection interface rework
PM / hibernate: Verify the consistent of e820 memory map by md5 digest
* powercap:
powercap / RAPL: Add Knights Mill CPUID
powercap/intel_rapl: fix and tidy up error handling
powercap/intel_rapl: Track active CPUs internally
powercap/intel_rapl: Cleanup duplicated init code
powercap/intel rapl: Convert to hotplug state machine
powercap/intel_rapl: Propagate error code when registration fails
powercap/intel_rapl: Add missing domain data update on hotplug
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* pm-cpuidle:
cpuidle: Add a kerneldoc comment to cpuidle_use_deepest_state()
cpuidle: fix improper return value on error
intel_idle: Convert to hotplug state machine
intel_idle: Remove superfluous SMP fuction call
MAINTAINERS: Add Jacob Pan as a new intel_idle maintainer
MAINTAINERS: Add bug tracking system location entries for cpuidle
x86/intel_idle: Add Knights Mill CPUID
x86/intel_idle: Add CPU model 0x4a (Atom Z34xx series)
thermal/intel_powerclamp: stop sched tick in forced idle
thermal/intel_powerclamp: Convert to CPU hotplug state
thermal/intel_powerclamp: Convert the kthread to kthread worker API
thermal/intel_powerclamp: Remove duplicated code that starts the kthread
sched/idle: Add support for tasks that inject idle
cpuidle: Allow enforcing deepest idle state selection
cpuidle/powernv: staticise powernv_idle_driver
cpuidle: dt: assign ->enter_freeze to same as ->enter callback function
cpuidle: governors: Remove remaining old module code
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* pm-cpufreq: (51 commits)
Documentation: intel_pstate: Document HWP energy/performance hints
cpufreq: intel_pstate: Support for energy performance hints with HWP
cpufreq: intel_pstate: Add locking around HWP requests
cpufreq: ondemand: Set MIN_FREQUENCY_UP_THRESHOLD to 1
cpufreq: intel_pstate: Add Knights Mill CPUID
MAINTAINERS: Add bug tracking system location entry for cpufreq
cpufreq: dt: Add support for zx296718
cpufreq: acpi-cpufreq: drop rdmsr_on_cpus() usage
cpufreq: acpi-cpufreq: Convert to hotplug state machine
cpufreq: intel_pstate: fix intel_pstate_exit_perf_limits() prototype
cpufreq: intel_pstate: Set EPP/EPB to 0 in performance mode
cpufreq: schedutil: Rectify comment in sugov_irq_work() function
cpufreq: intel_pstate: increase precision of performance limits
cpufreq: intel_pstate: round up min_perf limits
cpufreq: Make cpufreq_update_policy() void
ACPI / processor: Make acpi_processor_ppc_has_changed() void
cpufreq: Avoid using inactive policies
cpufreq: intel_pstate: Generic governors support
cpufreq: intel_pstate: Request P-states control from SMM if needed
cpufreq: dt: Add support for r8a7743 and r8a7745
...
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* pm-opp:
PM / OPP: Don't WARN on multiple calls to dev_pm_opp_set_regulators()
PM / OPP: Allow platform specific custom set_opp() callbacks
PM / OPP: Separate out _generic_set_opp()
PM / OPP: Add infrastructure to manage multiple regulators
PM / OPP: Pass struct dev_pm_opp_supply to _set_opp_voltage()
PM / OPP: Manage supply's voltage/current in a separate structure
PM / OPP: Don't use OPP structure outside of rcu protected section
PM / OPP: Reword binding supporting multiple regulators per device
PM / OPP: Fix incorrect cpu-supply property in binding
PM / OPP: Pass opp_table to dev_pm_opp_put_regulator()
PM / OPP: fix debug/error messages in dev_pm_opp_of_get_sharing_cpus()
PM / OPP: make _of_get_opp_desc_node() a static function
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* pm-core:
PM / core: Fix bug in the error handling of async suspend
PM / wakeirq: Fix dedicated wakeirq for drivers not using autosuspend
PM / Runtime: Defer resuming of the device in pm_runtime_force_resume()
PM / Runtime: Don't allow to suspend a device with an active child
net: smsc911x: Synchronize the runtime PM status during system suspend
PM / Runtime: Convert pm_runtime_set_suspended() to return an int
PM / Runtime: Clarify comment in rpm_resume() when resuming the parent
PM / Runtime: Remove the exported function pm_children_suspended()
* pm-qos:
PM / QoS: Export dev_pm_qos_update_user_latency_tolerance
PM / QoS: Fix writing 'auto' to pm_qos_latency_tolerance_us
PM / QoS: Improve sysfs pm_qos_latency_tolerance validation
* pm-avs:
PM / AVS: rockchip-io: make the log more consistent
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* pm-domains:
PM / Domains: Fix compatible for domain idle state
PM / Domains: Do not print PM domain add error message if EPROBE_DEFER
PM / Domains: Fix a warning message
PM / Domains: check for negative return from of_count_phandle_with_args()
PM / doc: Update device documentation for devices in IRQ-safe PM domains
PM / Domains: Support IRQ safe PM domains
PM / Domains: Abstract genpd locking
dt/bindings / PM/Domains: Update binding for PM domain idle states
PM / Domains: Save the fwnode in genpd_power_state
PM / Domains: Allow domain power states to be read from DT
PM / Domains: Add residency property to genpd states
PM / Domains: Make genpd state allocation dynamic
Conflicts:
arch/arm/mach-imx/gpc.c
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Port firmware update code from Samsung Galaxy S7 driver into
mainline framework.
This patch has been tested on Synaptics S7813.
Signed-off-by: Nick Dyer <nick@shmanahar.org>
Tested-by: Chris Healy <cphealy@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull locking updates from Ingo Molnar:
"The tree got pretty big in this development cycle, but the net effect
is pretty good:
115 files changed, 673 insertions(+), 1522 deletions(-)
The main changes were:
- Rework and generalize the mutex code to remove per arch mutex
primitives. (Peter Zijlstra)
- Add vCPU preemption support: add an interface to query the
preemption status of vCPUs and use it in locking primitives - this
optimizes paravirt performance. (Pan Xinhui, Juergen Gross,
Christian Borntraeger)
- Introduce cpu_relax_yield() and remov cpu_relax_lowlatency() to
clean up and improve the s390 lock yielding machinery and its core
kernel impact. (Christian Borntraeger)
- Micro-optimize mutexes some more. (Waiman Long)
- Reluctantly add the to-be-deprecated mutex_trylock_recursive()
interface on a temporary basis, to give the DRM code more time to
get rid of its locking hacks. Any other users will be NAK-ed on
sight. (We turned off the deprecation warning for the time being to
not pollute the build log.) (Peter Zijlstra)
- Improve the rtmutex code a bit, in light of recent long lived
bugs/races. (Thomas Gleixner)
- Misc fixes, cleanups"
* 'locking-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (36 commits)
x86/paravirt: Fix bool return type for PVOP_CALL()
x86/paravirt: Fix native_patch()
locking/ww_mutex: Use relaxed atomics
locking/rtmutex: Explain locking rules for rt_mutex_proxy_unlock()/init_proxy_locked()
locking/rtmutex: Get rid of RT_MUTEX_OWNER_MASKALL
x86/paravirt: Optimize native pv_lock_ops.vcpu_is_preempted()
locking/mutex: Break out of expensive busy-loop on {mutex,rwsem}_spin_on_owner() when owner vCPU is preempted
locking/osq: Break out of spin-wait busy waiting loop for a preempted vCPU in osq_lock()
Documentation/virtual/kvm: Support the vCPU preemption check
x86/xen: Support the vCPU preemption check
x86/kvm: Support the vCPU preemption check
x86/kvm: Support the vCPU preemption check
kvm: Introduce kvm_write_guest_offset_cached()
locking/core, x86/paravirt: Implement vcpu_is_preempted(cpu) for KVM and Xen guests
locking/spinlocks, s390: Implement vcpu_is_preempted(cpu)
locking/core, powerpc: Implement vcpu_is_preempted(cpu)
sched/core: Introduce the vcpu_is_preempted(cpu) interface
sched/wake_q: Rename WAKE_Q to DEFINE_WAKE_Q
locking/core: Provide common cpu_relax_yield() definition
locking/mutex: Don't mark mutex_trylock_recursive() as deprecated, temporarily
...
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull EFI updates from Ingo Molnar:
"The main changes in this development cycle were:
- Implement EFI dev path parser and other changes to fully support
thunderbolt devices on Apple Macbooks (Lukas Wunner)
- Add RNG seeding via the EFI stub, on ARM/arm64 (Ard Biesheuvel)
- Expose EFI framebuffer configuration to user-space, to improve
tooling (Peter Jones)
- Misc fixes and cleanups (Ivan Hu, Wei Yongjun, Yisheng Xie, Dan
Carpenter, Roy Franz)"
* 'efi-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
efi/libstub: Make efi_random_alloc() allocate below 4 GB on 32-bit
thunderbolt: Compile on x86 only
thunderbolt, efi: Fix Kconfig dependencies harder
thunderbolt, efi: Fix Kconfig dependencies
thunderbolt: Use Device ROM retrieved from EFI
x86/efi: Retrieve and assign Apple device properties
efi: Allow bitness-agnostic protocol calls
efi: Add device path parser
efi/arm*/libstub: Invoke EFI_RNG_PROTOCOL to seed the UEFI RNG table
efi/libstub: Add random.c to ARM build
efi: Add support for seeding the RNG from a UEFI config table
MAINTAINERS: Add ARM and arm64 EFI specific files to EFI subsystem
efi/libstub: Fix allocation size calculations
efi/efivar_ssdt_load: Don't return success on allocation failure
efifb: Show framebuffer layout as device attributes
efi/efi_test: Use memdup_user() as a cleanup
efi/efi_test: Fix uninitialized variable 'rv'
efi/efi_test: Fix uninitialized variable 'datasize'
efi/arm*: Fix efi_init() error handling
efi: Remove unused include of <linux/version.h>
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* pci/host-tegra:
arm64: tegra: Enable PCIe on Jetson TX1
arm64: tegra: Add PCIe host bridge on Tegra210
PCI: tegra: Enable the driver on 64-bit ARM
PCI: tegra: Add Tegra210 support
PCI: tegra: Implement PCA enable workaround
dt-bindings: pci: tegra: Add Tegra210 support
PCI: tegra: Use new pci_register_host_bridge() interface
PCI: Export host bridge registration interface
PCI: Allow driver-specific data in host bridge
PCI: Add pci_register_host_bridge() interface
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* pci/host:
of/pci: Add of_pci_get_max_link_speed() to parse max-link-speed from DT
Documentation/devicetree: Add PCIe max-link-speed property
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* pci/virtualization:
PCI: Add comments about ROM BAR updating
PCI: Decouple IORESOURCE_ROM_ENABLE and PCI_ROM_ADDRESS_ENABLE
PCI: Remove pci_resource_bar() and pci_iov_resource_bar()
PCI: Don't update VF BARs while VF memory space is enabled
PCI: Separate VF BAR updates from standard BAR updates
PCI: Update BARs using property bits appropriate for type
PCI: Ignore BAR updates on virtual functions
PCI: Do any VF BAR updates before enabling the BARs
PCI: Support INTx masking on ConnectX-4 with firmware x.14.1100+
PCI: Convert Mellanox broken INTx quirks to be for listed devices only
PCI: Convert broken INTx masking quirks from HEADER to FINAL
net/mlx4_core: Use device ID defines
PCI: Add Mellanox device IDs
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* pci/pm:
x86/platform/intel-mid: Constify mid_pci_platform_pm
PCI: pciehp: Add runtime PM support for PCIe hotplug ports
ACPI / hotplug / PCI: Make device_is_managed_by_native_pciehp() public
ACPI / hotplug / PCI: Use cached copy of PCI_EXP_SLTCAP_HPC bit
PCI: Unfold conditions to block runtime PM on PCIe ports
PCI: Consolidate conditions to allow runtime PM on PCIe ports
PCI: Activate runtime PM on a PCIe port only if it can suspend
PCI: Speed up algorithm in pci_bridge_d3_update()
PCI: Autosense device removal in pci_bridge_d3_update()
PCI: Don't acquire ref on parent in pci_bridge_d3_update()
USB: UHCI: report non-PME wakeup signalling for Intel hardware
PCI: Check for PME in targeted sleep state
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull RCU updates from Ingo Molnar:
"The main RCU changes in this development cycle were:
- Miscellaneous fixes, including a change to call_rcu()'s rcu_head
alignment check.
- Security-motivated list consistency checks, which are disabled by
default behind DEBUG_LIST.
- Torture-test updates.
- Documentation updates, yet again just simple changes"
* 'core-rcu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
torture: Prevent jitter from delaying build-only runs
torture: Remove obsolete files from rcutorture .gitignore
rcu: Don't kick unless grace period or request
rcu: Make expedited grace periods recheck dyntick idle state
torture: Trace long read-side delays
rcu: RCU_TRACE enables event tracing as well as debugfs
rcu: Remove obsolete comment from __call_rcu()
rcu: Remove obsolete rcu_check_callbacks() header comment
rcu: Tighten up __call_rcu() rcu_head alignment check
Documentation/RCU: Fix minor typo
documentation: Present updated RCU guarantee
bug: Avoid Kconfig warning for BUG_ON_DATA_CORRUPTION
lib/Kconfig.debug: Fix typo in select statement
lkdtm: Add tests for struct list corruption
bug: Provide toggle for BUG on data corruption
list: Split list_del() debug checking into separate function
rculist: Consolidate DEBUG_LIST for list_add_rcu()
list: Split list_add() debug checking into separate function
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Pull sparc updates from David Miller:
"Just a bunch of small cleanups and fixes here, and support for user
probes from Allen Pais"
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc:
sparc: fix a building error reported by kbuild
sparc64: fix typo in pgd_clear()
sparc64: restore irq in error paths in iommu
sparc: leon: Fix a retry loop in leon_init_timers()
sparc64: make string buffers large enough
sparc64: move dereference after check for NULL
sparc: kernel: use builtin_platform_driver
sparc64:Support User Probes for sparc
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'regulator/topic/lp873x', 'regulator/topic/max77620', 'regulator/topic/pwm' and 'regulator/topic/tps6507x' into regulator-next
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'regulator/topic/bypass', 'regulator/topic/error' and 'regulator/topic/fixed' into regulator-next
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git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm into HEAD
KVM/ARM updates for 4.10:
- Support for the GICv3 ITS on 32bit platforms
- A handful of timer and GIC emulation fixes
- A PMU architecture fix
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Signed-off-by: Eric Saint Etienne <eric.saint.etienne@oracle.com>
Signed-off-by: Allen Pais <allen.pais@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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... to better explain its purpose after introducing in-place encryption
without bounce buffer.
Signed-off-by: David Gstir <david@sigma-star.at>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
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Since fscrypt users can now indicated if fscrypt_encrypt_page() should
use a bounce page, we can delay the bounce page pool initialization util
it is really needed. That is until fscrypt_operations has no
FS_CFLG_OWN_PAGES flag set.
Signed-off-by: David Gstir <david@sigma-star.at>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
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Rename the FS_CFLG_INPLACE_ENCRYPTION flag to FS_CFLG_OWN_PAGES which,
when set, indicates that the fs uses pages under its own control as
opposed to writeback pages which require locking and a bounce buffer for
encryption.
Signed-off-by: David Gstir <david@sigma-star.at>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
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- Improve documentation
- Add BUG_ON(len == 0) to avoid accidental switch of offs and len
parameters
- Improve variable names for readability
Signed-off-by: David Gstir <david@sigma-star.at>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
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These constants are part of the UAPI, so they belong in
include/uapi/linux/fs.h instead of include/linux/fscrypto.h
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Reviewed-by: Eric Biggers <ebiggers@google.com>
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Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Reviewed-by: Eric Biggers <ebiggers@google.com>
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The fscrypt_initalize() function isn't used outside fs/crypto, so
there's no point making it be an exported symbol.
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Reviewed-by: Eric Biggers <ebiggers@google.com>
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To avoid namespace collisions, rename get_crypt_info() to
fscrypt_get_crypt_info(). The function is only used inside the
fs/crypto directory, so declare it in the new header file,
fscrypt_private.h.
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Reviewed-by: Eric Biggers <ebiggers@google.com>
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Multiple bugs were recently fixed in the "set encryption policy" ioctl.
To make it clear that fscrypt_process_policy() and fscrypt_get_policy()
implement ioctls and therefore their implementations must take standard
security and correctness precautions, rename them to
fscrypt_ioctl_set_policy() and fscrypt_ioctl_get_policy(). Make the
latter take in a struct file * to make it consistent with the former.
Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
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Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Signed-off-by: Ingo Molnar <mingo@kernel.org>
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