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git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull thermal control updates from Rafael Wysocki:
"These add support for the D1/T113s THS controller to the sun8i driver
and a DT-based mechanism for platforms to indicate a preference to
reboot (instead of shutting down) on crossing a critical trip point,
fix issues, make other improvements (in the IPA governor, the Intel
HFI driver, the exynos driver and the thermal netlink interface among
other places) and clean up code.
One long-standing issue addressed here is that trip point crossing
notifications sent to user space might be unreliable due to the
incorrect handling of trip point hysteresis in the thermal core:
multiple notifications might be sent for the same event or there might
be events without any notification at all.
Specifics:
- Add dynamic thresholds for trip point crossing detection to prevent
trip point crossing notifications from being sent at incorrect
times or not at all in some cases (Rafael J. Wysocki)
- Fix synchronization issues related to the resume of thermal zones
during a system-wide resume and allow thermal zones to be resumed
concurrently (Rafael J. Wysocki)
- Modify the thermal zone unregistration to wait for the given zone
to go away completely before returning to the caller and rework the
sysfs interface for trip points on top of that (Rafael J. Wysocki)
- Fix a possible NULL pointer dereference in thermal zone
registration error path (Rafael J. Wysocki)
- Clean up the IPA thermal governor and modify it (with the help of a
new governor callback) to avoid allocating and freeing memory every
time its throttling callback is invoked (Lukasz Luba)
- Make the IPA thermal governor handle thermal instance weight
changes via sysfs correctly (Lukasz Luba)
- Update the thermal netlink code to avoid sending messages if there
are no recipients (Stanislaw Gruszka)
- Convert Mediatek Thermal to the json-schema (Rafał Miłecki)
- Fix thermal DT bindings issue on Loongson (Binbin Zhou)
- Fix returning NULL instead of -ENODEV during thermal probe on
Loogsoon (Binbin Zhou)
- Add thermal DT binding for tsens on the SM8650 platform (Neil
Armstrong)
- Add reboot on the critical trip point crossing option feature
(Fabio Estevam)
- Use DEFINE_SIMPLE_DEV_PM_OPS do define PM functions for thermal
suspend/resume on AmLogic (Uwe Kleine-König)
- Add D1/T113s THS controller support to the Sun8i thermal control
driver (Maxim Kiselev)
- Fix example in the thermal DT binding for QCom SPMI (Johan Hovold)
- Fix compilation warning in the tmon utility (Florian Eckert)
- Add support for interrupt-based thermal configuration on Exynos
along with a set of related cleanups (Mateusz Majewski)
- Make the Intel HFI thermal driver enable an HFI instance (eg.
processor package) from its first online CPU and disable it when
the last CPU in it goes offline (Ricardo Neri)
- Fix a kernel-doc warning and a spello in the cpuidle_cooling
thermal driver (Randy Dunlap)
- Move the .get_temp() thermal zone callback presence check to the
thermal zone registration code (Daniel Lezcano)
- Use the for_each_trip() macro for trip points table walks in a few
places in the thermal core (Rafael J. Wysocki)
- Make all trip point updates (via sysfs as well as from the platform
firmware) trigger trip change notifications (Rafael J. Wysocki)
- Drop redundant code from the thermal core and make one function in
it take a const pointer argument (Rafael J. Wysocki)"
* tag 'thermal-6.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (64 commits)
thermal: trip: Constify thermal zone argument of thermal_zone_trip_id()
thermal: intel: hfi: Disable an HFI instance when all its CPUs go offline
thermal: intel: hfi: Enable an HFI instance from its first online CPU
thermal: intel: hfi: Refactor enabling code into helper functions
thermal/drivers/exynos: Use set_trips ops
thermal/drivers/exynos: Use BIT wherever possible
thermal/drivers/exynos: Split initialization of TMU and the thermal zone
thermal/drivers/exynos: Stop using the threshold mechanism on Exynos 4210
thermal/drivers/exynos: Simplify regulator (de)initialization
thermal/drivers/exynos: Handle devm_regulator_get_optional return value correctly
thermal/drivers/exynos: Wwitch from workqueue-driven interrupt handling to threaded interrupts
thermal/drivers/exynos: Drop id field
thermal/drivers/exynos: Remove an unnecessary field description
tools/thermal/tmon: Fix compilation warning for wrong format
dt-bindings: thermal: qcom-spmi-adc-tm5/hc: Clean up examples
dt-bindings: thermal: qcom-spmi-adc-tm5/hc: Fix example node names
thermal/drivers/sun8i: Add D1/T113s THS controller support
dt-bindings: thermal: sun8i: Add binding for D1/T113s THS controller
thermal: amlogic: Use DEFINE_SIMPLE_DEV_PM_OPS for PM functions
thermal: amlogic: Make amlogic_thermal_disable() return void
...
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git://git.kernel.org/pub/scm/linux/kernel/git/mic/linux
Pull Landlock updates from Mickaël Salaün:
"New tests, a slight optimization, and some cosmetic changes"
* tag 'landlock-6.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/mic/linux:
landlock: Optimize the number of calls to get_access_mask slightly
selftests/landlock: Rename "permitted" to "allowed" in ftruncate tests
landlock: Remove remaining "inline" modifiers in .c files [v6.6]
landlock: Remove remaining "inline" modifiers in .c files [v6.1]
landlock: Remove remaining "inline" modifiers in .c files [v5.15]
selftests/landlock: Add tests to check unhandled rule's access rights
selftests/landlock: Add tests to check unknown rule's access rights
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git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/lsm
Pull security module updates from Paul Moore:
- Add three new syscalls: lsm_list_modules(), lsm_get_self_attr(), and
lsm_set_self_attr().
The first syscall simply lists the LSMs enabled, while the second and
third get and set the current process' LSM attributes. Yes, these
syscalls may provide similar functionality to what can be found under
/proc or /sys, but they were designed to support multiple,
simultaneaous (stacked) LSMs from the start as opposed to the current
/proc based solutions which were created at a time when only one LSM
was allowed to be active at a given time.
We have spent considerable time discussing ways to extend the
existing /proc interfaces to support multiple, simultaneaous LSMs and
even our best ideas have been far too ugly to support as a kernel
API; after +20 years in the kernel, I felt the LSM layer had
established itself enough to justify a handful of syscalls.
Support amongst the individual LSM developers has been nearly
unanimous, with a single objection coming from Tetsuo (TOMOYO) as he
is worried that the LSM_ID_XXX token concept will make it more
difficult for out-of-tree LSMs to survive. Several members of the LSM
community have demonstrated the ability for out-of-tree LSMs to
continue to exist by picking high/unused LSM_ID values as well as
pointing out that many kernel APIs rely on integer identifiers, e.g.
syscalls (!), but unfortunately Tetsuo's objections remain.
My personal opinion is that while I have no interest in penalizing
out-of-tree LSMs, I'm not going to penalize in-tree development to
support out-of-tree development, and I view this as a necessary step
forward to support the push for expanded LSM stacking and reduce our
reliance on /proc and /sys which has occassionally been problematic
for some container users. Finally, we have included the linux-api
folks on (all?) recent revisions of the patchset and addressed all of
their concerns.
- Add a new security_file_ioctl_compat() LSM hook to handle the 32-bit
ioctls on 64-bit systems problem.
This patch includes support for all of the existing LSMs which
provide ioctl hooks, although it turns out only SELinux actually
cares about the individual ioctls. It is worth noting that while
Casey (Smack) and Tetsuo (TOMOYO) did not give explicit ACKs to this
patch, they did both indicate they are okay with the changes.
- Fix a potential memory leak in the CALIPSO code when IPv6 is disabled
at boot.
While it's good that we are fixing this, I doubt this is something
users are seeing in the wild as you need to both disable IPv6 and
then attempt to configure IPv6 labeled networking via
NetLabel/CALIPSO; that just doesn't make much sense.
Normally this would go through netdev, but Jakub asked me to take
this patch and of all the trees I maintain, the LSM tree seemed like
the best fit.
- Update the LSM MAINTAINERS entry with additional information about
our process docs, patchwork, bug reporting, etc.
I also noticed that the Lockdown LSM is missing a dedicated
MAINTAINERS entry so I've added that to the pull request. I've been
working with one of the major Lockdown authors/contributors to see if
they are willing to step up and assume a Lockdown maintainer role;
hopefully that will happen soon, but in the meantime I'll continue to
look after it.
- Add a handful of mailmap entries for Serge Hallyn and myself.
* tag 'lsm-pr-20240105' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/lsm: (27 commits)
lsm: new security_file_ioctl_compat() hook
lsm: Add a __counted_by() annotation to lsm_ctx.ctx
calipso: fix memory leak in netlbl_calipso_add_pass()
selftests: remove the LSM_ID_IMA check in lsm/lsm_list_modules_test
MAINTAINERS: add an entry for the lockdown LSM
MAINTAINERS: update the LSM entry
mailmap: add entries for Serge Hallyn's dead accounts
mailmap: update/replace my old email addresses
lsm: mark the lsm_id variables are marked as static
lsm: convert security_setselfattr() to use memdup_user()
lsm: align based on pointer length in lsm_fill_user_ctx()
lsm: consolidate buffer size handling into lsm_fill_user_ctx()
lsm: correct error codes in security_getselfattr()
lsm: cleanup the size counters in security_getselfattr()
lsm: don't yet account for IMA in LSM_CONFIG_COUNT calculation
lsm: drop LSM_ID_IMA
LSM: selftests for Linux Security Module syscalls
SELinux: Add selfattr hooks
AppArmor: Add selfattr hooks
Smack: implement setselfattr and getselfattr hooks
...
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git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
Pull MM updates from Andrew Morton:
"Many singleton patches against the MM code. The patch series which are
included in this merge do the following:
- Peng Zhang has done some mapletree maintainance work in the series
'maple_tree: add mt_free_one() and mt_attr() helpers'
'Some cleanups of maple tree'
- In the series 'mm: use memmap_on_memory semantics for dax/kmem'
Vishal Verma has altered the interworking between memory-hotplug
and dax/kmem so that newly added 'device memory' can more easily
have its memmap placed within that newly added memory.
- Matthew Wilcox continues folio-related work (including a few fixes)
in the patch series
'Add folio_zero_tail() and folio_fill_tail()'
'Make folio_start_writeback return void'
'Fix fault handler's handling of poisoned tail pages'
'Convert aops->error_remove_page to ->error_remove_folio'
'Finish two folio conversions'
'More swap folio conversions'
- Kefeng Wang has also contributed folio-related work in the series
'mm: cleanup and use more folio in page fault'
- Jim Cromie has improved the kmemleak reporting output in the series
'tweak kmemleak report format'.
- In the series 'stackdepot: allow evicting stack traces' Andrey
Konovalov to permits clients (in this case KASAN) to cause eviction
of no longer needed stack traces.
- Charan Teja Kalla has fixed some accounting issues in the page
allocator's atomic reserve calculations in the series 'mm:
page_alloc: fixes for high atomic reserve caluculations'.
- Dmitry Rokosov has added to the samples/ dorectory some sample code
for a userspace memcg event listener application. See the series
'samples: introduce cgroup events listeners'.
- Some mapletree maintanance work from Liam Howlett in the series
'maple_tree: iterator state changes'.
- Nhat Pham has improved zswap's approach to writeback in the series
'workload-specific and memory pressure-driven zswap writeback'.
- DAMON/DAMOS feature and maintenance work from SeongJae Park in the
series
'mm/damon: let users feed and tame/auto-tune DAMOS'
'selftests/damon: add Python-written DAMON functionality tests'
'mm/damon: misc updates for 6.8'
- Yosry Ahmed has improved memcg's stats flushing in the series 'mm:
memcg: subtree stats flushing and thresholds'.
- In the series 'Multi-size THP for anonymous memory' Ryan Roberts
has added a runtime opt-in feature to transparent hugepages which
improves performance by allocating larger chunks of memory during
anonymous page faults.
- Matthew Wilcox has also contributed some cleanup and maintenance
work against eh buffer_head code int he series 'More buffer_head
cleanups'.
- Suren Baghdasaryan has done work on Andrea Arcangeli's series
'userfaultfd move option'. UFFDIO_MOVE permits userspace heap
compaction algorithms to move userspace's pages around rather than
UFFDIO_COPY'a alloc/copy/free.
- Stefan Roesch has developed a 'KSM Advisor', in the series 'mm/ksm:
Add ksm advisor'. This is a governor which tunes KSM's scanning
aggressiveness in response to userspace's current needs.
- Chengming Zhou has optimized zswap's temporary working memory use
in the series 'mm/zswap: dstmem reuse optimizations and cleanups'.
- Matthew Wilcox has performed some maintenance work on the writeback
code, both code and within filesystems. The series is 'Clean up the
writeback paths'.
- Andrey Konovalov has optimized KASAN's handling of alloc and free
stack traces for secondary-level allocators, in the series 'kasan:
save mempool stack traces'.
- Andrey also performed some KASAN maintenance work in the series
'kasan: assorted clean-ups'.
- David Hildenbrand has gone to town on the rmap code. Cleanups, more
pte batching, folio conversions and more. See the series 'mm/rmap:
interface overhaul'.
- Kinsey Ho has contributed some maintenance work on the MGLRU code
in the series 'mm/mglru: Kconfig cleanup'.
- Matthew Wilcox has contributed lruvec page accounting code cleanups
in the series 'Remove some lruvec page accounting functions'"
* tag 'mm-stable-2024-01-08-15-31' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (361 commits)
mm, treewide: rename MAX_ORDER to MAX_PAGE_ORDER
mm, treewide: introduce NR_PAGE_ORDERS
selftests/mm: add separate UFFDIO_MOVE test for PMD splitting
selftests/mm: skip test if application doesn't has root privileges
selftests/mm: conform test to TAP format output
selftests: mm: hugepage-mmap: conform to TAP format output
selftests/mm: gup_test: conform test to TAP format output
mm/selftests: hugepage-mremap: conform test to TAP format output
mm/vmstat: move pgdemote_* out of CONFIG_NUMA_BALANCING
mm: zsmalloc: return -ENOSPC rather than -EINVAL in zs_malloc while size is too large
mm/memcontrol: remove __mod_lruvec_page_state()
mm/khugepaged: use a folio more in collapse_file()
slub: use a folio in __kmalloc_large_node
slub: use folio APIs in free_large_kmalloc()
slub: use alloc_pages_node() in alloc_slab_page()
mm: remove inc/dec lruvec page state functions
mm: ratelimit stat flush from workingset shrinker
kasan: stop leaking stack trace handles
mm/mglru: remove CONFIG_TRANSPARENT_HUGEPAGE
mm/mglru: add dummy pmd_dirty()
...
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git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup
Pull cgroup updates from Tejun Heo:
- Yafang Shao added task_get_cgroup1() helper to enable a similar BPF
helper so that BPF progs can be more useful on cgroup1 hierarchies.
While cgroup1 is mostly in maintenance mode, this addition is very
small while having an outsized usefulness for users who are still on
cgroup1. Yafang also optimized root cgroup list access by making it
RCU protected in the process.
- Waiman Long optimized rstat operation leading to substantially lower
and more consistent lock hold time while flushing the hierarchical
statistics. As the lock can be acquired briefly in various hot paths,
this reduction has cascading benefits.
- Waiman also improved the quality of isolation for cpuset's isolated
partitions. CPUs which are allocated to isolated partitions are now
excluded from running unbound work items and cpu_is_isolated() test
which is used by vmstat and memcg to reduce interference now includes
cpuset isolated CPUs. While it isn't there yet, the hope is
eventually reaching parity with the isolation level provided by the
`isolcpus` boot param but in a dynamic manner.
* tag 'cgroup-for-6.8' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup:
cgroup: Move rcu_head up near the top of cgroup_root
cgroup/cpuset: Include isolated cpuset CPUs in cpu_is_isolated() check
cgroup: Avoid false cacheline sharing of read mostly rstat_cpu
cgroup/rstat: Optimize cgroup_rstat_updated_list()
cgroup: Fix documentation for cpu.idle
cgroup/cpuset: Expose cpuset.cpus.isolated
workqueue: Move workqueue_set_unbound_cpumask() and its helpers inside CONFIG_SYSFS
cgroup/rstat: Reduce cpu_lock hold time in cgroup_rstat_flush_locked()
cgroup/cpuset: Take isolated CPUs out of workqueue unbound cpumask
cgroup/cpuset: Keep track of CPUs in isolated partitions
selftests/cgroup: Minor code cleanup and reorganization of test_cpuset_prs.sh
workqueue: Add workqueue_unbound_exclude_cpumask() to exclude CPUs from wq_unbound_cpumask
selftests: cgroup: Fixes a typo in a comment
cgroup: Add a new helper for cgroup1 hierarchy
cgroup: Add annotation for holding namespace_sem in current_cgns_cgroup_from_root()
cgroup: Eliminate the need for cgroup_mutex in proc_cgroup_show()
cgroup: Make operations on the cgroup root_list RCU safe
cgroup: Remove unnecessary list_empty()
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull objtool fixlet from Ingo Molnar:
"Address a GCC-14 warning: there's no real bug, but indeed the calloc
order doesn't match the prototype.
(Side note: we should really add zalloc() for such cases)"
* tag 'objtool-core-2024-01-08' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
objtool: Fix calloc call for new -Walloc-size
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git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Pull arm64 updates from Will Deacon:
"CPU features:
- Remove ARM64_HAS_NO_HW_PREFETCH copy_page() optimisation for ye
olde Thunder-X machines
- Avoid mapping KPTI trampoline when it is not required
- Make CPU capability API more robust during early initialisation
Early idreg overrides:
- Remove dependencies on core kernel helpers from the early
command-line parsing logic in preparation for moving this code
before the kernel is mapped
FPsimd:
- Restore kernel-mode fpsimd context lazily, allowing us to run
fpsimd code sequences in the kernel with pre-emption enabled
KBuild:
- Install 'vmlinuz.efi' when CONFIG_EFI_ZBOOT=y
- Makefile cleanups
LPA2 prep:
- Preparatory work for enabling the 'LPA2' extension, which will
introduce 52-bit virtual and physical addressing even with 4KiB
pages (including for KVM guests).
Misc:
- Remove dead code and fix a typo
MM:
- Pass NUMA node information for IRQ stack allocations
Perf:
- Add perf support for the Synopsys DesignWare PCIe PMU
- Add support for event counting thresholds (FEAT_PMUv3_TH)
introduced in Armv8.8
- Add support for i.MX8DXL SoCs to the IMX DDR PMU driver.
- Minor PMU driver fixes and optimisations
RIP VPIPT:
- Remove what support we had for the obsolete VPIPT I-cache policy
Selftests:
- Improvements to the SVE and SME selftests
Stacktrace:
- Refactor kernel unwind logic so that it can used by BPF unwinding
and, eventually, reliable backtracing
Sysregs:
- Update a bunch of register definitions based on the latest XML drop
from Arm"
* tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: (87 commits)
kselftest/arm64: Don't probe the current VL for unsupported vector types
efi/libstub: zboot: do not use $(shell ...) in cmd_copy_and_pad
arm64: properly install vmlinuz.efi
arm64/sysreg: Add missing system instruction definitions for FGT
arm64/sysreg: Add missing system register definitions for FGT
arm64/sysreg: Add missing ExtTrcBuff field definition to ID_AA64DFR0_EL1
arm64/sysreg: Add missing Pauth_LR field definitions to ID_AA64ISAR1_EL1
arm64: memory: remove duplicated include
arm: perf: Fix ARCH=arm build with GCC
arm64: Align boot cpucap handling with system cpucap handling
arm64: Cleanup system cpucap handling
MAINTAINERS: add maintainers for DesignWare PCIe PMU driver
drivers/perf: add DesignWare PCIe PMU driver
PCI: Move pci_clear_and_set_dword() helper to PCI header
PCI: Add Alibaba Vendor ID to linux/pci_ids.h
docs: perf: Add description for Synopsys DesignWare PCIe PMU driver
arm64: irq: set the correct node for shadow call stack
Revert "perf/arm_dmc620: Remove duplicate format attribute #defines"
arm64: fpsimd: Implement lazy restore for kernel mode FPSIMD
arm64: fpsimd: Preserve/restore kernel mode NEON at context switch
...
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git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux
Pull powerpc updates from Michael Ellerman:
- Add initial support to recognise the HeXin C2000 processor.
- Add papr-vpd and papr-sysparm character device drivers for VPD &
sysparm retrieval, so userspace tools can be adapted to avoid doing
raw firmware calls from userspace.
- Sched domains optimisations for shared processor partitions on
P9/P10.
- A series of optimisations for KVM running as a nested HV under
PowerVM.
- Other small features and fixes.
Thanks to Aditya Gupta, Aneesh Kumar K.V, Arnd Bergmann, Christophe
Leroy, Colin Ian King, Dario Binacchi, David Heidelberg, Geoff Levand,
Gustavo A. R. Silva, Haoran Liu, Jordan Niethe, Kajol Jain, Kevin Hao,
Kunwu Chan, Li kunyu, Li zeming, Masahiro Yamada, Michal Suchánek,
Nathan Lynch, Naveen N Rao, Nicholas Piggin, Randy Dunlap, Sathvika
Vasireddy, Srikar Dronamraju, Stephen Rothwell, Vaibhav Jain, and
Zhao Ke.
* tag 'powerpc-6.8-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: (96 commits)
powerpc/ps3_defconfig: Disable PPC64_BIG_ENDIAN_ELF_ABI_V2
powerpc/86xx: Drop unused CONFIG_MPC8610
powerpc/powernv: Add error handling to opal_prd_range_is_valid
selftests/powerpc: Fix spelling mistake "EACCESS" -> "EACCES"
powerpc/hvcall: Reorder Nestedv2 hcall opcodes
powerpc/ps3: Add missing set_freezable() for ps3_probe_thread()
powerpc/mpc83xx: Use wait_event_freezable() for freezable kthread
powerpc/mpc83xx: Add the missing set_freezable() for agent_thread_fn()
powerpc/fsl: Fix fsl,tmu-calibration to match the schema
powerpc/smp: Dynamically build Powerpc topology
powerpc/smp: Avoid asym packing within thread_group of a core
powerpc/smp: Add __ro_after_init attribute
powerpc/smp: Disable MC domain for shared processor
powerpc/smp: Enable Asym packing for cores on shared processor
powerpc/sched: Cleanup vcpu_is_preempted()
powerpc: add cpu_spec.cpu_features to vmcoreinfo
powerpc/imc-pmu: Add a null pointer check in update_events_in_group()
powerpc/powernv: Add a null pointer check in opal_powercap_init()
powerpc/powernv: Add a null pointer check in opal_event_init()
powerpc/powernv: Add a null pointer check to scom_debug_init_one()
...
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 cpu feature updates from Borislav Petkov:
- Add synthetic X86_FEATURE flags for the different AMD Zen generations
and use them everywhere instead of ad-hoc family/model checks. Drop
an ancient AMD errata checking facility as a result
- Fix a fragile initcall ordering in intel_epb
- Do not issue the MFENCE+LFENCE barrier for the TSC deadline and
X2APIC MSRs on AMD as it is not needed there
* tag 'x86_cpu_for_v6.8' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/CPU/AMD: Add X86_FEATURE_ZEN1
x86/CPU/AMD: Drop now unused CPU erratum checking function
x86/CPU/AMD: Get rid of amd_erratum_1485[]
x86/CPU/AMD: Get rid of amd_erratum_400[]
x86/CPU/AMD: Get rid of amd_erratum_383[]
x86/CPU/AMD: Get rid of amd_erratum_1054[]
x86/CPU/AMD: Move the DIV0 bug detection to the Zen1 init function
x86/CPU/AMD: Move Zenbleed check to the Zen2 init function
x86/CPU/AMD: Rename init_amd_zn() to init_amd_zen_common()
x86/CPU/AMD: Call the spectral chicken in the Zen2 init function
x86/CPU/AMD: Move erratum 1076 fix into the Zen1 init function
x86/CPU/AMD: Move the Zen3 BTC_NO detection to the Zen3 init function
x86/CPU/AMD: Carve out the erratum 1386 fix
x86/CPU/AMD: Add ZenX generations flags
x86/cpu/intel_epb: Don't rely on link order
x86/barrier: Do not serialize MSR accesses on AMD
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commit 23baf831a32c ("mm, treewide: redefine MAX_ORDER sanely") has
changed the definition of MAX_ORDER to be inclusive. This has caused
issues with code that was not yet upstream and depended on the previous
definition.
To draw attention to the altered meaning of the define, rename MAX_ORDER
to MAX_PAGE_ORDER.
Link: https://lkml.kernel.org/r/20231228144704.14033-2-kirill.shutemov@linux.intel.com
Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs
Pull vfs mount updates from Christian Brauner:
"This contains the work to retrieve detailed information about mounts
via two new system calls. This is hopefully the beginning of the end
of the saga that started with fsinfo() years ago.
The LWN articles in [1] and [2] can serve as a summary so we can avoid
rehashing everything here.
At LSFMM in May 2022 we got into a room and agreed on what we want to
do about fsinfo(). Basically, split it into pieces. This is the first
part of that agreement. Specifically, it is concerned with retrieving
information about mounts. So this only concerns the mount information
retrieval, not the mount table change notification, or the extended
filesystem specific mount option work. That is separate work.
Currently mounts have a 32bit id. Mount ids are already in heavy use
by libmount and other low-level userspace but they can't be relied
upon because they're recycled very quickly. We agreed that mounts
should carry a unique 64bit id by which they can be referenced
directly. This is now implemented as part of this work.
The new 64bit mount id is exposed in statx() through the new
STATX_MNT_ID_UNIQUE flag. If the flag isn't raised the old mount id is
returned. If it is raised and the kernel supports the new 64bit mount
id the flag is raised in the result mask and the new 64bit mount id is
returned. New and old mount ids do not overlap so they cannot be
conflated.
Two new system calls are introduced that operate on the 64bit mount
id: statmount() and listmount(). A summary of the api and usage can be
found on LWN as well (cf. [3]) but of course, I'll provide a summary
here as well.
Both system calls rely on struct mnt_id_req. Which is the request
struct used to pass the 64bit mount id identifying the mount to
operate on. It is extensible to allow for the addition of new
parameters and for future use in other apis that make use of mount
ids.
statmount() mimicks the semantics of statx() and exposes a set flags
that userspace may raise in mnt_id_req to request specific information
to be retrieved. A statmount() call returns a struct statmount filled
in with information about the requested mount. Supported requests are
indicated by raising the request flag passed in struct mnt_id_req in
the @mask argument in struct statmount.
Currently we do support:
- STATMOUNT_SB_BASIC:
Basic filesystem info
- STATMOUNT_MNT_BASIC
Mount information (mount id, parent mount id, mount attributes etc)
- STATMOUNT_PROPAGATE_FROM
Propagation from what mount in current namespace
- STATMOUNT_MNT_ROOT
Path of the root of the mount (e.g., mount --bind /bla /mnt returns /bla)
- STATMOUNT_MNT_POINT
Path of the mount point (e.g., mount --bind /bla /mnt returns /mnt)
- STATMOUNT_FS_TYPE
Name of the filesystem type as the magic number isn't enough due to submounts
The string options STATMOUNT_MNT_{ROOT,POINT} and STATMOUNT_FS_TYPE
are appended to the end of the struct. Userspace can use the offsets
in @fs_type, @mnt_root, and @mnt_point to reference those strings
easily.
The struct statmount reserves quite a bit of space currently for
future extensibility. This isn't really a problem and if this bothers
us we can just send a follow-up pull request during this cycle.
listmount() is given a 64bit mount id via mnt_id_req just as
statmount(). It takes a buffer and a size to return an array of the
64bit ids of the child mounts of the requested mount. Userspace can
thus choose to either retrieve child mounts for a mount in batches or
iterate through the child mounts. For most use-cases it will be
sufficient to just leave space for a few child mounts. But for big
mount tables having an iterator is really helpful. Iterating through a
mount table works by setting @param in mnt_id_req to the mount id of
the last child mount retrieved in the previous listmount() call"
Link: https://lwn.net/Articles/934469 [1]
Link: https://lwn.net/Articles/829212 [2]
Link: https://lwn.net/Articles/950569 [3]
* tag 'vfs-6.8.mount' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs:
add selftest for statmount/listmount
fs: keep struct mnt_id_req extensible
wire up syscalls for statmount/listmount
add listmount(2) syscall
statmount: simplify string option retrieval
statmount: simplify numeric option retrieval
add statmount(2) syscall
namespace: extract show_path() helper
mounts: keep list of mounts in an rbtree
add unique mount ID
|
|
git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs
Pull misc vfs updates from Christian Brauner:
"This contains the usual miscellaneous features, cleanups, and fixes
for vfs and individual fses.
Features:
- Add Jan Kara as VFS reviewer
- Show correct device and inode numbers in proc/<pid>/maps for vma
files on stacked filesystems. This is now easily doable thanks to
the backing file work from the last cycles. This comes with
selftests
Cleanups:
- Remove a redundant might_sleep() from wait_on_inode()
- Initialize pointer with NULL, not 0
- Clarify comment on access_override_creds()
- Rework and simplify eventfd_signal() and eventfd_signal_mask()
helpers
- Process aio completions in batches to avoid needless wakeups
- Completely decouple struct mnt_idmap from namespaces. We now only
keep the actual idmapping around and don't stash references to
namespaces
- Reformat maintainer entries to indicate that a given subsystem
belongs to fs/
- Simplify fput() for files that were never opened
- Get rid of various pointless file helpers
- Rename various file helpers
- Rename struct file members after SLAB_TYPESAFE_BY_RCU switch from
last cycle
- Make relatime_need_update() return bool
- Use GFP_KERNEL instead of GFP_USER when allocating superblocks
- Replace deprecated ida_simple_*() calls with their current ida_*()
counterparts
Fixes:
- Fix comments on user namespace id mapping helpers. They aren't
kernel doc comments so they shouldn't be using /**
- s/Retuns/Returns/g in various places
- Add missing parameter documentation on can_move_mount_beneath()
- Rename i_mapping->private_data to i_mapping->i_private_data
- Fix a false-positive lockdep warning in pipe_write() for watch
queues
- Improve __fget_files_rcu() code generation to improve performance
- Only notify writer that pipe resizing has finished after setting
pipe->max_usage otherwise writers are never notified that the pipe
has been resized and hang
- Fix some kernel docs in hfsplus
- s/passs/pass/g in various places
- Fix kernel docs in ntfs
- Fix kcalloc() arguments order reported by gcc 14
- Fix uninitialized value in reiserfs"
* tag 'vfs-6.8.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs: (36 commits)
reiserfs: fix uninit-value in comp_keys
watch_queue: fix kcalloc() arguments order
ntfs: dir.c: fix kernel-doc function parameter warnings
fs: fix doc comment typo fs tree wide
selftests/overlayfs: verify device and inode numbers in /proc/pid/maps
fs/proc: show correct device and inode numbers in /proc/pid/maps
eventfd: Remove usage of the deprecated ida_simple_xx() API
fs: super: use GFP_KERNEL instead of GFP_USER for super block allocation
fs/hfsplus: wrapper.c: fix kernel-doc warnings
fs: add Jan Kara as reviewer
fs/inode: Make relatime_need_update return bool
pipe: wakeup wr_wait after setting max_usage
file: remove __receive_fd()
file: stop exposing receive_fd_user()
fs: replace f_rcuhead with f_task_work
file: remove pointless wrapper
file: s/close_fd_get_file()/file_close_fd()/g
Improve __fget_files_rcu() code generation (and thus __fget_light())
file: massage cleanup of files that failed to open
fs/pipe: Fix lockdep false-positive in watchqueue pipe_write()
...
|
|
Add a test for UFFDIO_MOVE ioctl operating on a hugepage which has to be
split because destination is marked with MADV_NOHUGEPAGE. With this we
cover all 3 cases: normal page move, hugepage move, hugepage splitting
before move.
Link: https://lkml.kernel.org/r/20231230025636.2477429-1-surenb@google.com
Signed-off-by: Suren Baghdasaryan <surenb@google.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: Axel Rasmussen <axelrasmussen@google.com>
Cc: Brian Geffon <bgeffon@google.com>
Cc: Christian Brauner <brauner@kernel.org>
Cc: David Hildenbrand <david@redhat.com>
Cc: Hugh Dickins <hughd@google.com>
Cc: Jann Horn <jannh@google.com>
Cc: Kalesh Singh <kaleshsingh@google.com>
Cc: Liam R. Howlett <Liam.Howlett@oracle.com>
Cc: Lokesh Gidra <lokeshgidra@google.com>
Cc: Matthew Wilcox (Oracle) <willy@infradead.org>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Mike Rapoport (IBM) <rppt@kernel.org>
Cc: Nicolas Geoffray <ngeoffray@google.com>
Cc: Peter Xu <peterx@redhat.com>
Cc: Ryan Roberts <ryan.roberts@arm.com>
Cc: Shuah Khan <shuah@kernel.org>
Cc: ZhangPeng <zhangpeng362@huawei.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
|
|
The test depends on writing to nr_hugepages which isn't possible without
root privileges. So skip the test in this case.
Link: https://lkml.kernel.org/r/20240101083614.1076768-2-usama.anjum@collabora.com
Signed-off-by: Muhammad Usama Anjum <usama.anjum@collabora.com>
Cc: Shuah Khan <shuah@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
|
|
Conform the layout, informational and status messages to TAP. No
functional change is intended other than the layout of output messages.
Link: https://lkml.kernel.org/r/20240101083614.1076768-1-usama.anjum@collabora.com
Signed-off-by: Muhammad Usama Anjum <usama.anjum@collabora.com>
Cc: Shuah Khan <shuah@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
|
|
Conform the layout, informational and status messages to TAP. No
functional change is intended other than the layout of output messages.
Link: https://lkml.kernel.org/r/20240102053223.2099572-1-usama.anjum@collabora.com
Signed-off-by: Muhammad Usama Anjum <usama.anjum@collabora.com>
Cc: Shuah Khan <shuah@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
|
|
Conform the layout, informational and status messages to TAP. No
functional change is intended other than the layout of output messages.
Link: https://lkml.kernel.org/r/20240102053807.2114200-1-usama.anjum@collabora.com
Signed-off-by: Muhammad Usama Anjum <usama.anjum@collabora.com>
Cc: Shuah Khan <shuah@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
|
|
Conform the layout, informational and status messages to TAP. No
functional change is intended other than the layout of output messages.
Link: https://lkml.kernel.org/r/20240102081919.2325570-1-usama.anjum@collabora.com
Signed-off-by: Muhammad Usama Anjum <usama.anjum@collabora.com>
Cc: Shuah Khan <shuah@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
|
|
git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Pull networking fixes from Jakub Kicinski:
"Including fixes from wireless and netfilter.
We haven't accumulated much over the break. If it wasn't for the
uninterrupted stream of fixes for Intel drivers this PR would be very
slim. There was a handful of user reports, however, either they stood
out because of the lower traffic or users have had more time to test
over the break. The ones which are v6.7-relevant should be wrapped up.
Current release - regressions:
- Revert "net: ipv6/addrconf: clamp preferred_lft to the minimum
required", it caused issues on networks where routers send prefixes
with preferred_lft=0
- wifi:
- iwlwifi: pcie: don't synchronize IRQs from IRQ, prevent deadlock
- mac80211: fix re-adding debugfs entries during reconfiguration
Current release - new code bugs:
- tcp: print AO/MD5 messages only if there are any keys
Previous releases - regressions:
- virtio_net: fix missing dma unmap for resize, prevent OOM
Previous releases - always broken:
- mptcp: prevent tcp diag from closing listener subflows
- nf_tables:
- set transport header offset for egress hook, fix IPv4 mangling
- skip set commit for deleted/destroyed sets, avoid double deactivation
- nat: make sure action is set for all ct states, fix openvswitch
matching on ICMP packets in related state
- eth: mlxbf_gige: fix receive hang under heavy traffic
- eth: r8169: fix PCI error on system resume for RTL8168FP
- net: add missing getsockopt(SO_TIMESTAMPING_NEW) and cmsg handling"
* tag 'net-6.7-rc9' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (52 commits)
net/tcp: Only produce AO/MD5 logs if there are any keys
net: Implement missing SO_TIMESTAMPING_NEW cmsg support
bnxt_en: Remove mis-applied code from bnxt_cfg_ntp_filters()
net: ravb: Wait for operating mode to be applied
asix: Add check for usbnet_get_endpoints
octeontx2-af: Re-enable MAC TX in otx2_stop processing
octeontx2-af: Always configure NIX TX link credits based on max frame size
net/smc: fix invalid link access in dumping SMC-R connections
net/qla3xxx: fix potential memleak in ql_alloc_buffer_queues
virtio_net: fix missing dma unmap for resize
igc: Fix hicredit calculation
ice: fix Get link status data length
i40e: Restore VF MSI-X state during PCI reset
i40e: fix use-after-free in i40e_aqc_add_filters()
net: Save and restore msg_namelen in sock_sendmsg
netfilter: nft_immediate: drop chain reference counter on error
netfilter: nf_nat: fix action not being set for all ct states
net: bcmgenet: Fix FCS generation for fragmented skbuffs
mptcp: prevent tcp diag from closing listener subflows
MAINTAINERS: add Geliang as reviewer for MPTCP
...
|
|
* for-next/selftests:
kselftest/arm64: Don't probe the current VL for unsupported vector types
kselftest/arm64: Log SVCR when the SME tests barf
kselftest/arm64: Improve output for skipped TPIDR2 ABI test
|
|
Suggested-by: Mickaël Salaün <mic@digikod.net>
Signed-off-by: Günther Noack <gnoack@google.com>
Link: https://lore.kernel.org/r/20231208155121.1943775-3-gnoack@google.com
Signed-off-by: Mickaël Salaün <mic@digikod.net>
|
|
Similar to commit be809424659c ("selftests: bonding: do not set port down
before adding to bond"). The bond-arp-interval-causes-panic test failed
after commit a4abfa627c38 ("net: rtnetlink: Enslave device before bringing
it up") as the kernel will set the port down _after_ adding to bond if setting
port down specifically.
Fix it by removing the link down operation when adding to bond.
Fixes: 2ffd57327ff1 ("selftests: bonding: cause oops in bond_rr_gen_slave_id")
Signed-off-by: Hangbin Liu <liuhangbin@gmail.com>
Tested-by: Benjamin Poirier <benjamin.poirier@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
|
The following warnings are shown during compilation:
tui.c: In function 'show_cooling_device':
tui.c:216:40: warning: format '%d' expects argument of type 'int', but
argument 7 has type 'long unsigned int' [-Wformat=]
216 | "%02d %12.12s%6d %6d",
| ~~^
| |
| int
| %6ld
......
219 | ptdata.cdi[j].cur_state,
| ~~~~~~~~~~~~~~~~~~~~~~~
| |
| long unsigned int
tui.c:216:44: warning: format '%d' expects argument of type 'int', but
argument 8 has type 'long unsigned int' [-Wformat=]
216 | "%02d %12.12s%6d %6d",
| ~~^
| |
| int
| %6ld
......
220 | ptdata.cdi[j].max_state);
| ~~~~~~~~~~~~~~~~~~~~~~~
| |
| long unsigned int
To fix this, the correct string format must be used for printing.
Signed-off-by: Florian Eckert <fe@dev.tdt.de>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: https://lore.kernel.org/r/20231204141335.2798194-1-fe@dev.tdt.de
|
|
When running tests on a CI system (e.g. LAVA) it is useful to output test
results in TAP (Test Anything Protocol) format so that the CI can parse
the fine-grained results to show regressions. Many of the mm selftest
binaries already output using the TAP format. And the kselftests runner
(run_kselftest.sh) also uses the format. CI systems such as LAVA can
already handle nested TAP reports. However, with the mm selftests we have
3 levels of nesting (run_kselftest.sh -> run_vmtests.sh -> individual test
binaries) and the middle level did not previously support TAP, which
breaks the parser.
Let's fix that by teaching run_vmtests.sh to output using the TAP format.
Ideally this would be opt-in via a command line argument to avoid the
possibility of breaking anyone's existing scripts that might scrape the
output. However, it is not possible to pass arguments to tests invoked
via run_kselftest.sh. So I've implemented an opt-out option (-n), which
will revert to the existing output format.
Future changes to this file should be aware of 2 new conventions:
- output that is part of the TAP reporting is piped through tap_output
- general output is piped through tap_prefix
Link: https://lkml.kernel.org/r/20231214162434.3580009-1-ryan.roberts@arm.com
Signed-off-by: Ryan Roberts <ryan.roberts@arm.com>
Reviewed-by: Mark Brown <broonie@kernel.org>
Tested-by: John Hubbard <jhubbard@nvidia.com>
Cc: Aishwarya TCV <aishwarya.tcv@arm.com>
Cc: Peter Xu <peterx@redhat.com>
Cc: Shuah Khan <shuah@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
|
|
Add tests for new UFFDIO_MOVE ioctl which uses uffd to move source into
destination buffer while checking the contents of both after the move.
After the operation the content of the destination buffer should match the
original source buffer's content while the source buffer should be zeroed.
Separate tests are designed for PMD aligned and unaligned cases because
they utilize different code paths in the kernel.
Link: https://lkml.kernel.org/r/20231206103702.3873743-6-surenb@google.com
Signed-off-by: Suren Baghdasaryan <surenb@google.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: Axel Rasmussen <axelrasmussen@google.com>
Cc: Brian Geffon <bgeffon@google.com>
Cc: Christian Brauner <brauner@kernel.org>
Cc: David Hildenbrand <david@redhat.com>
Cc: Hugh Dickins <hughd@google.com>
Cc: Jann Horn <jannh@google.com>
Cc: Kalesh Singh <kaleshsingh@google.com>
Cc: Liam R. Howlett <Liam.Howlett@oracle.com>
Cc: Lokesh Gidra <lokeshgidra@google.com>
Cc: Matthew Wilcox (Oracle) <willy@infradead.org>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Mike Rapoport (IBM) <rppt@kernel.org>
Cc: Nicolas Geoffray <ngeoffray@google.com>
Cc: Peter Xu <peterx@redhat.com>
Cc: Ryan Roberts <ryan.roberts@arm.com>
Cc: Shuah Khan <shuah@kernel.org>
Cc: ZhangPeng <zhangpeng362@huawei.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
|
|
Currently each test can specify unique operations using uffd_test_ops,
however these operations are per-memory type and not per-test. Add
uffd_test_case_ops which each test case can customize for its own needs
regardless of the memory type being used. Pre- and post-allocation
operations are added, some of which will be used in the next patch to
implement test-specific operations like madvise after memory is allocated
but before it is accessed.
Link: https://lkml.kernel.org/r/20231206103702.3873743-5-surenb@google.com
Signed-off-by: Suren Baghdasaryan <surenb@google.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: Axel Rasmussen <axelrasmussen@google.com>
Cc: Brian Geffon <bgeffon@google.com>
Cc: Christian Brauner <brauner@kernel.org>
Cc: David Hildenbrand <david@redhat.com>
Cc: Hugh Dickins <hughd@google.com>
Cc: Jann Horn <jannh@google.com>
Cc: Kalesh Singh <kaleshsingh@google.com>
Cc: Liam R. Howlett <Liam.Howlett@oracle.com>
Cc: Lokesh Gidra <lokeshgidra@google.com>
Cc: Matthew Wilcox (Oracle) <willy@infradead.org>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Mike Rapoport (IBM) <rppt@kernel.org>
Cc: Nicolas Geoffray <ngeoffray@google.com>
Cc: Peter Xu <peterx@redhat.com>
Cc: Ryan Roberts <ryan.roberts@arm.com>
Cc: Shuah Khan <shuah@kernel.org>
Cc: ZhangPeng <zhangpeng362@huawei.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
|
|
uffd_test_ctx_clear() is being called from uffd_test_ctx_init() to unmap
areas used in the previous test run. This approach is problematic because
while unmapping areas uffd_test_ctx_clear() uses page_size and nr_pages
which might differ from one test run to another. Fix this by calling
uffd_test_ctx_clear() after each test is done.
Link: https://lkml.kernel.org/r/20231206103702.3873743-4-surenb@google.com
Signed-off-by: Suren Baghdasaryan <surenb@google.com>
Reviewed-by: Peter Xu <peterx@redhat.com>
Reviewed-by: Axel Rasmussen <axelrasmussen@google.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: Brian Geffon <bgeffon@google.com>
Cc: Christian Brauner <brauner@kernel.org>
Cc: David Hildenbrand <david@redhat.com>
Cc: Hugh Dickins <hughd@google.com>
Cc: Jann Horn <jannh@google.com>
Cc: Kalesh Singh <kaleshsingh@google.com>
Cc: Liam R. Howlett <Liam.Howlett@oracle.com>
Cc: Lokesh Gidra <lokeshgidra@google.com>
Cc: Matthew Wilcox (Oracle) <willy@infradead.org>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Mike Rapoport (IBM) <rppt@kernel.org>
Cc: Nicolas Geoffray <ngeoffray@google.com>
Cc: Ryan Roberts <ryan.roberts@arm.com>
Cc: Shuah Khan <shuah@kernel.org>
Cc: ZhangPeng <zhangpeng362@huawei.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
|
|
git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
Pull misc fixes from Andrew Morton:
"11 hotfixes. 7 are cc:stable and the other 4 address post-6.6 issues
or are not considered backporting material"
* tag 'mm-hotfixes-stable-2023-12-27-15-00' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm:
mailmap: add an old address for Naoya Horiguchi
mm/memory-failure: cast index to loff_t before shifting it
mm/memory-failure: check the mapcount of the precise page
mm/memory-failure: pass the folio and the page to collect_procs()
selftests: secretmem: floor the memory size to the multiple of page_size
mm: migrate high-order folios in swap cache correctly
maple_tree: do not preallocate nodes for slot stores
mm/filemap: avoid buffered read/write race to read inconsistent data
kunit: kasan_test: disable fortify string checker on kmalloc_oob_memset
kexec: select CRYPTO from KEXEC_FILE instead of depending on it
kexec: fix KEXEC_FILE dependencies
|
|
Pull kvm fixes from Paolo Bonzini:
"RISC-V:
- Fix a race condition in updating external interrupt for
trap-n-emulated IMSIC swfile
- Fix print_reg defaults in get-reg-list selftest
ARM:
- Ensure a vCPU's redistributor is unregistered from the MMIO bus if
vCPU creation fails
- Fix building KVM selftests for arm64 from the top-level Makefile
x86:
- Fix breakage for SEV-ES guests that use XSAVES
Selftests:
- Fix bad use of strcat(), by not using strcat() at all"
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
KVM: SEV: Do not intercept accesses to MSR_IA32_XSS for SEV-ES guests
KVM: selftests: Fix dynamic generation of configuration names
RISCV: KVM: update external interrupt atomically for IMSIC swfile
KVM: riscv: selftests: Fix get-reg-list print_reg defaults
KVM: selftests: Ensure sysreg-defs.h is generated at the expected path
KVM: Convert comment into an assertion in kvm_io_bus_register_dev()
KVM: arm64: vgic: Ensure that slots_lock is held in vgic_register_all_redist_iodevs()
KVM: arm64: vgic: Force vcpu vgic teardown on vcpu destroy
KVM: arm64: vgic: Add a non-locking primitive for kvm_vgic_vcpu_destroy()
KVM: arm64: vgic: Simplify kvm_vgic_destroy()
|
|
kvm-master
KVM/riscv fixes for 6.7, take #1
- Fix a race condition in updating external interrupt for
trap-n-emulated IMSIC swfile
- Fix print_reg defaults in get-reg-list selftest
|
|
git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm into kvm-master
KVM/arm64 fixes for 6.7, part #2
- Ensure a vCPU's redistributor is unregistered from the MMIO bus
if vCPU creation fails
- Fix building KVM selftests for arm64 from the top-level Makefile
|
|
git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull sound fixes from Takashi Iwai:
"Apparently there were so many kids wishing bug fixes that made Santa
busy; here we have lots of fixes although it's a bit late. But all
changes are device-specific, hence it should be relatively safe to
apply.
Most of changes are for Cirrus codecs (for both ASoC and HD-audio),
while the remaining are fixes for TI codecs, HD-audio and USB-audio
quirks"
* tag 'sound-6.7-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (24 commits)
ALSA: hda: cs35l41: Only add SPI CS GPIO if SPI is enabled in kernel
ALSA: hda: cs35l41: Do not allow uninitialised variables to be freed
ASoC: fsl_sai: Fix channel swap issue on i.MX8MP
ASoC: hdmi-codec: fix missing report for jack initial status
ALSA: hda/realtek: Add quirks for ASUS Zenbook 2023 Models
ALSA: hda: cs35l41: Support additional ASUS Zenbook 2023 Models
ALSA: hda/realtek: Add quirks for ASUS Zenbook 2022 Models
ALSA: hda: cs35l41: Support additional ASUS Zenbook 2022 Models
ALSA: hda/realtek: Add quirks for ASUS ROG 2023 models
ALSA: hda: cs35l41: Support additional ASUS ROG 2023 models
ALSA: hda: cs35l41: Add config table to support many laptops without _DSD
ASoC: Intel: bytcr_rt5640: Add new swapped-speakers quirk
ASoC: Intel: bytcr_rt5640: Add quirk for the Medion Lifetab S10346
kselftest: alsa: fixed a print formatting warning
ALSA: usb-audio: Increase delay in MOTU M quirk
ASoC: tas2781: check the validity of prm_no/cfg_no
ALSA: hda/tas2781: select program 0, conf 0 by default
ALSA: hda/realtek: Add quirk for ASUS ROG GV302XA
ASoC: cs42l43: Don't enable bias sense during type detect
ASoC: Intel: soc-acpi-intel-mtl-match: Change CS35L56 prefixes to AMPn
...
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Add two tests to make sure that we cannot add a rule to a ruleset if the
rule's access rights that are not handled by the ruleset:
* fs: layout1.rule_with_unhandled_access
* net: mini.rule_with_unhandled_access
Cc: Konstantin Meskhidze <konstantin.meskhidze@huawei.com>
Reviewed-by: Günther Noack <gnoack@google.com>
Link: https://lore.kernel.org/r/20231130093616.67340-3-mic@digikod.net
Signed-off-by: Mickaël Salaün <mic@digikod.net>
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Add two tests to make sure that we cannot add a rule with access
rights that are unknown:
* fs: layout0.rule_with_unknown_access
* net: mini.rule_with_unknown_access
Rename unknown_access_rights tests to ruleset_with_unknown_access .
Cc: Konstantin Meskhidze <konstantin.meskhidze@huawei.com>
Reviewed-by: Günther Noack <gnoack@google.com>
Link: https://lore.kernel.org/r/20231130093616.67340-2-mic@digikod.net
Signed-off-by: Mickaël Salaün <mic@digikod.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Pull networking fixes from Paolo Abeni:
"Including fixes from WiFi and bpf.
Current release - regressions:
- bpf: syzkaller found null ptr deref in unix_bpf proto add
- eth: i40e: fix ST code value for clause 45
Previous releases - regressions:
- core: return error from sk_stream_wait_connect() if sk_wait_event()
fails
- ipv6: revert remove expired routes with a separated list of routes
- wifi rfkill:
- set GPIO direction
- fix crash with WED rx support enabled
- bluetooth:
- fix deadlock in vhci_send_frame
- fix use-after-free in bt_sock_recvmsg
- eth: mlx5e: fix a race in command alloc flow
- eth: ice: fix PF with enabled XDP going no-carrier after reset
- eth: bnxt_en: do not map packet buffers twice
Previous releases - always broken:
- core:
- check vlan filter feature in vlan_vids_add_by_dev() and
vlan_vids_del_by_dev()
- check dev->gso_max_size in gso_features_check()
- mptcp: fix inconsistent state on fastopen race
- phy: skip LED triggers on PHYs on SFP modules
- eth: mlx5e:
- fix double free of encap_header
- fix slab-out-of-bounds in mlx5_query_nic_vport_mac_list()"
* tag 'net-6.7-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (69 commits)
net: check dev->gso_max_size in gso_features_check()
kselftest: rtnetlink.sh: use grep_fail when expecting the cmd fail
net/ipv6: Revert remove expired routes with a separated list of routes
net: avoid build bug in skb extension length calculation
net: ethernet: mtk_wed: fix possible NULL pointer dereference in mtk_wed_wo_queue_tx_clean()
net: stmmac: fix incorrect flag check in timestamp interrupt
selftests: add vlan hw filter tests
net: check vlan filter feature in vlan_vids_add_by_dev() and vlan_vids_del_by_dev()
net: hns3: add new maintainer for the HNS3 ethernet driver
net: mana: select PAGE_POOL
net: ks8851: Fix TX stall caused by TX buffer overrun
ice: Fix PF with enabled XDP going no-carrier after reset
ice: alter feature support check for SRIOV and LAG
ice: stop trashing VF VSI aggregator node ID information
mailmap: add entries for Geliang Tang
mptcp: fill in missing MODULE_DESCRIPTION()
mptcp: fix inconsistent state on fastopen race
selftests: mptcp: join: fix subflow_send_ack lookup
net: phy: skip LED triggers on PHYs on SFP modules
bpf: Add missing BPF_LINK_TYPE invocations
...
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When mapping a file on overlayfs, the file stored in ->vm_file is a
backing file whose f_inode is on the underlying filesystem. We need to
verify that /proc/pid/maps contains numbers of the overlayfs file, but
not its backing file.
Cc: Amir Goldstein <amir73il@gmail.com>
Cc: Alexander Mikhalitsyn <alexander@mihalicyn.com>
Signed-off-by: Andrei Vagin <avagin@google.com>
Link: https://lore.kernel.org/r/20231214064439.1023011-2-avagin@google.com
Reviewed-by: Amir Goldstein <amir73il@gmail.com>
Signed-off-by: Christian Brauner <brauner@kernel.org>
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https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf
Daniel Borkmann says:
====================
pull-request: bpf 2023-12-21
Hi David, hi Jakub, hi Paolo, hi Eric,
The following pull-request contains BPF updates for your *net* tree.
We've added 3 non-merge commits during the last 5 day(s) which contain
a total of 4 files changed, 45 insertions(+).
The main changes are:
1) Fix a syzkaller splat which triggered an oob issue in bpf_link_show_fdinfo(),
from Jiri Olsa.
2) Fix another syzkaller-found issue which triggered a NULL pointer dereference
in BPF sockmap for unconnected unix sockets, from John Fastabend.
bpf-for-netdev
* tag 'for-netdev' of https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf:
bpf: Add missing BPF_LINK_TYPE invocations
bpf: sockmap, test for unconnected af_unix sock
bpf: syzkaller found null ptr deref in unix_bpf proto add
====================
Link: https://lore.kernel.org/r/20231221104844.1374-1-daniel@iogearbox.net
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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There is a spelling mistake of the EACCES error name, fix it.
Signed-off-by: Colin Ian King <colin.i.king@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://msgid.link/20231215112456.13554-1-colin.i.king@gmail.com
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run_cmd_grep_fail should be used when expecting the cmd fail, or the ret
will be set to 1, and the total test return 1 when exiting. This would cause
the result report to fail if run via run_kselftest.sh.
Before fix:
# ./rtnetlink.sh -t kci_test_addrlft
PASS: preferred_lft addresses have expired
# echo $?
1
After fix:
# ./rtnetlink.sh -t kci_test_addrlft
PASS: preferred_lft addresses have expired
# echo $?
0
Fixes: 9c2a19f71515 ("kselftest: rtnetlink.sh: add verbose flag")
Signed-off-by: Hangbin Liu <liuhangbin@gmail.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://lore.kernel.org/r/20231219065737.1725120-1-liuhangbin@gmail.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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Add a test for reproducing the update_schemes_tried_{regions,bytes}
command-causing indefinite hang bug that fixed by commit 7d6fa31a2fd7
("mm/damon/sysfs-schemes: add timeout for update_schemes_tried_regions"),
to avoid mistakenly re-introducing the bug. Refer to the fix commit for
more details of the bug.
Link: https://lkml.kernel.org/r/20231212194810.54457-6-sj@kernel.org
Signed-off-by: SeongJae Park <sj@kernel.org>
Cc: Shuah Khan <shuah@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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Add a selftest for verifying the accuracy of DAMON's access monitoring
functionality. The test starts a program of artificial access pattern,
monitor the access pattern using DAMON, and check if DAMON finds expected
amount of hot data region (working set size) with only acceptable error
rate.
Note that the acceptable error rate is set with only naive assumptions and
small number of tests. Hence failures of the test may not always mean
DAMON is broken. Rather than that, those could be a signal to better
understand the real accuracy level of DAMON in wider environments. Based
on further finding, we could optimize DAMON or adjust the expectation of
the test.
Link: https://lkml.kernel.org/r/20231212194810.54457-5-sj@kernel.org
Signed-off-by: SeongJae Park <sj@kernel.org>
Cc: Shuah Khan <shuah@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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Implement update_schemes_tried_bytes command of DAMON sysfs interface in
_damon_sysfs.py. It is not only making the update, but also read the
updated value from the sysfs interface and store it in the Kdamond python
objects so that the user of the module can easily get the value.
Link: https://lkml.kernel.org/r/20231212194810.54457-4-sj@kernel.org
Signed-off-by: SeongJae Park <sj@kernel.org>
Cc: Shuah Khan <shuah@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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Extend the tests-writing-purpose DAMON sysfs control module to support the
kdamonds start functionality.
Link: https://lkml.kernel.org/r/20231212194810.54457-3-sj@kernel.org
Signed-off-by: SeongJae Park <sj@kernel.org>
Cc: Shuah Khan <shuah@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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Patch series "selftests/damon: add Python-written DAMON functionality
tests", v2.
DAMON exports most of its functionality via its sysfs interface. Hence
most DAMON functionality tests could be implemented using the interface.
However, because the interfaces require simple but multiple operations for
many controls, writing all such tests from the scratch could be repetitive
and time consuming.
Implement a minimum DAMON sysfs control module, and a couple of DAMON
functionality tests using the control module. The first test is for
ensuring minimum accuracy of data access monitoring, and the second test
is for finding if a previously found and fixed bug is introduced again.
Note that the DAMON sysfs control module is only for avoiding duplicating
code in tests. For convenient and general control of DAMON, users should
use DAMON user-space tools that developed for the purpose, such as
damo[1].
[1] https://github.com/damonitor/damo
Patches Sequence
----------------
This patchset is constructed with five patches. The first three patches
implement a Python-written test implementation-purpose DAMON sysfs control
module. The implementation is incrementally done in the sequence of the
basic data structure (first patch) first, kdamonds start command (second
patch) next, and finally DAMOS tried bytes update command (third patch).
Then two patches for implementing selftests using the module follows. The
fourth patch implements a basic functionality test of DAMON for working
set estimation accuracy. Finally, the fifth patch implements a corner
case test for a previously found bug.
This patch (of 5):
Implement a python module for DAMON sysfs controls. The module is aimed
to be useful for writing DAMON functionality tests in future.
Nonetheless, this module is only representing a subset of DAMON sysfs
files. Following commits will implement more DAMON sysfs controls.
Link: https://lkml.kernel.org/r/20231212194810.54457-1-sj@kernel.org
Link: https://lkml.kernel.org/r/20231212194810.54457-2-sj@kernel.org
Signed-off-by: SeongJae Park <sj@kernel.org>
Cc: Shuah Khan <shuah@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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Avoid pointer type value compared with 0 to make code clear.
./tools/testing/radix-tree/maple.c:34142:15-16: WARNING comparing pointer to 0.
Link: https://lkml.kernel.org/r/20231208020450.7003-1-jiapeng.chong@linux.alibaba.com
Reported-by: Abaci Robot <abaci@linux.alibaba.com>
Closes: https://bugzilla.openanolis.cn/show_bug.cgi?id=7696
Signed-off-by: Jiapeng Chong <jiapeng.chong@linux.alibaba.com>
Cc: Liam R. Howlett <Liam.Howlett@oracle.com>
Cc: Matthew Wilcox (Oracle) <willy@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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Add tests similar to the existing PMD-sized THP tests, but which operate
on memory backed by (PTE-mapped) multi-size THP. This reuses all the
existing infrastructure. If the test suite detects that multi-size THP is
not supported by the kernel, the new tests are skipped.
Link: https://lkml.kernel.org/r/20231207161211.2374093-11-ryan.roberts@arm.com
Signed-off-by: Ryan Roberts <ryan.roberts@arm.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Tested-by: Kefeng Wang <wangkefeng.wang@huawei.com>
Tested-by: John Hubbard <jhubbard@nvidia.com>
Cc: Alistair Popple <apopple@nvidia.com>
Cc: Anshuman Khandual <anshuman.khandual@arm.com>
Cc: Barry Song <v-songbaohua@oppo.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: David Rientjes <rientjes@google.com>
Cc: "Huang, Ying" <ying.huang@intel.com>
Cc: Hugh Dickins <hughd@google.com>
Cc: Itaru Kitayama <itaru.kitayama@gmail.com>
Cc: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: Luis Chamberlain <mcgrof@kernel.org>
Cc: Matthew Wilcox (Oracle) <willy@infradead.org>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: Yang Shi <shy828301@gmail.com>
Cc: Yin Fengwei <fengwei.yin@intel.com>
Cc: Yu Zhao <yuzhao@google.com>
Cc: Zi Yan <ziy@nvidia.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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do_run_with_thp() prepares (PMD-sized) THP memory into different states
before running tests. With the introduction of multi-size THP, we would
like to reuse this logic to also test those smaller THP sizes. So let's
add a thpsize parameter which tells the function what size THP it should
operate on.
A separate commit will utilize this change to add new tests for multi-size
THP, where available.
Link: https://lkml.kernel.org/r/20231207161211.2374093-10-ryan.roberts@arm.com
Signed-off-by: Ryan Roberts <ryan.roberts@arm.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Tested-by: Kefeng Wang <wangkefeng.wang@huawei.com>
Tested-by: John Hubbard <jhubbard@nvidia.com>
Cc: Alistair Popple <apopple@nvidia.com>
Cc: Anshuman Khandual <anshuman.khandual@arm.com>
Cc: Barry Song <v-songbaohua@oppo.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: David Rientjes <rientjes@google.com>
Cc: "Huang, Ying" <ying.huang@intel.com>
Cc: Hugh Dickins <hughd@google.com>
Cc: Itaru Kitayama <itaru.kitayama@gmail.com>
Cc: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: Luis Chamberlain <mcgrof@kernel.org>
Cc: Matthew Wilcox (Oracle) <willy@infradead.org>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: Yang Shi <shy828301@gmail.com>
Cc: Yin Fengwei <fengwei.yin@intel.com>
Cc: Yu Zhao <yuzhao@google.com>
Cc: Zi Yan <ziy@nvidia.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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The `collapse_max_ptes_none` test was previously failing when a THP size
less than PMD-size had enabled="always". The root cause is because the
test faults in 1 page less than the threshold it set for collapsing. But
when THP is enabled always, we "over allocate" and therefore the threshold
is passed, and collapse unexpectedly succeeds.
Solve this by enlightening khugepaged selftest. Add a command line option
to pass in the desired THP size that should be used for all anonymous
allocations. The harness will then explicitly configure a THP size as
requested and modify the `collapse_max_ptes_none` test so that it faults
in the threshold minus the number of pages in the configured THP size. If
no command line option is provided, default to order 0, as per previous
behaviour.
I chose to use an order in the command line interface, since this makes
the interface agnostic of base page size, making it easier to invoke from
run_vmtests.sh.
Link: https://lkml.kernel.org/r/20231207161211.2374093-9-ryan.roberts@arm.com
Signed-off-by: Ryan Roberts <ryan.roberts@arm.com>
Tested-by: Kefeng Wang <wangkefeng.wang@huawei.com>
Tested-by: John Hubbard <jhubbard@nvidia.com>
Cc: Alistair Popple <apopple@nvidia.com>
Cc: Anshuman Khandual <anshuman.khandual@arm.com>
Cc: Barry Song <v-songbaohua@oppo.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: David Hildenbrand <david@redhat.com>
Cc: David Rientjes <rientjes@google.com>
Cc: "Huang, Ying" <ying.huang@intel.com>
Cc: Hugh Dickins <hughd@google.com>
Cc: Itaru Kitayama <itaru.kitayama@gmail.com>
Cc: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: Luis Chamberlain <mcgrof@kernel.org>
Cc: Matthew Wilcox (Oracle) <willy@infradead.org>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: Yang Shi <shy828301@gmail.com>
Cc: Yin Fengwei <fengwei.yin@intel.com>
Cc: Yu Zhao <yuzhao@google.com>
Cc: Zi Yan <ziy@nvidia.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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Save and restore the new per-size hugepage enabled setting, if available
on the running kernel.
Since the number of per-size directories is not fixed, solve this as
simply as possible by catering for a maximum number in the thp_settings
struct (20). Each array index is the order. The value of THP_NEVER is
changed to 0 so that all of these new settings default to THP_NEVER and
the user only needs to fill in the ones they want to enable.
Link: https://lkml.kernel.org/r/20231207161211.2374093-8-ryan.roberts@arm.com
Signed-off-by: Ryan Roberts <ryan.roberts@arm.com>
Tested-by: Kefeng Wang <wangkefeng.wang@huawei.com>
Tested-by: John Hubbard <jhubbard@nvidia.com>
Cc: Alistair Popple <apopple@nvidia.com>
Cc: Anshuman Khandual <anshuman.khandual@arm.com>
Cc: Barry Song <v-songbaohua@oppo.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: David Hildenbrand <david@redhat.com>
Cc: David Rientjes <rientjes@google.com>
Cc: "Huang, Ying" <ying.huang@intel.com>
Cc: Hugh Dickins <hughd@google.com>
Cc: Itaru Kitayama <itaru.kitayama@gmail.com>
Cc: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: Luis Chamberlain <mcgrof@kernel.org>
Cc: Matthew Wilcox (Oracle) <willy@infradead.org>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: Yang Shi <shy828301@gmail.com>
Cc: Yin Fengwei <fengwei.yin@intel.com>
Cc: Yu Zhao <yuzhao@google.com>
Cc: Zi Yan <ziy@nvidia.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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The khugepaged test has a useful framework for save/restore/pop/push of
all thp settings via the sysfs interface. This will be useful to
explicitly control multi-size THP settings in other tests, so let's move
it out of khugepaged and into its own thp_settings.[c|h] utility.
Link: https://lkml.kernel.org/r/20231207161211.2374093-7-ryan.roberts@arm.com
Signed-off-by: Ryan Roberts <ryan.roberts@arm.com>
Tested-by: Alistair Popple <apopple@nvidia.com>
Acked-by: David Hildenbrand <david@redhat.com>
Tested-by: Kefeng Wang <wangkefeng.wang@huawei.com>
Tested-by: John Hubbard <jhubbard@nvidia.com>
Cc: Anshuman Khandual <anshuman.khandual@arm.com>
Cc: Barry Song <v-songbaohua@oppo.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: David Rientjes <rientjes@google.com>
Cc: "Huang, Ying" <ying.huang@intel.com>
Cc: Hugh Dickins <hughd@google.com>
Cc: Itaru Kitayama <itaru.kitayama@gmail.com>
Cc: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: Luis Chamberlain <mcgrof@kernel.org>
Cc: Matthew Wilcox (Oracle) <willy@infradead.org>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: Yang Shi <shy828301@gmail.com>
Cc: Yin Fengwei <fengwei.yin@intel.com>
Cc: Yu Zhao <yuzhao@google.com>
Cc: Zi Yan <ziy@nvidia.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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