| Age | Commit message (Collapse) | Author |
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Fix IWYU issues:
/tmp/next/build/include/linux/io_uring_types.h:56:32: error: 'ITER_DEST'
undeclared here (not in a function)
56 | IO_BUF_DEST = 1 << ITER_DEST,
| ^~~~~~~~~
/tmp/next/build/include/linux/io_uring_types.h:57:32: error: 'ITER_SOURCE'
undeclared here (not in a function)
57 | IO_BUF_SOURCE = 1 << ITER_SOURCE,
| ^~~~~~~~~~~
Fixes: 95961b72c57b2 ("io_uring/rsrc: rename and export IO_IMU_DEST / IO_IMU_SOURCE")
Signed-off-by: Mark Brown <broonie@kernel.org>
Link: https://patch.msgid.link/20260818184134.384991-1-broonie@kernel.org
Signed-off-by: Jens Axboe <axboe@kernel.dk>
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull treewide timer related cleanups from Thomas Gleixner:
- Remove the leftover CLOCK_TICK_RATE which has been scheduled for
removal more than a decade ago along with some now empty asm/timex.h
files.
- Consolidate delay timer calibration
The construct of having a define in a header requires that
architectures provided asm/timex.h for no reason. Also the function
name for reading the delay timer is confusing at best.
Use a config switch to enable that functionality and rename the
function to delay_read_timer() to make the purpose clear.
This removes some more now empty asm/timex.h files as well.
* tag 'timers-cleanups-2026-08-17' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
calibrate: Rework delay timer calibration
treewide: Remove CLOCK_TICK_RATE
x86: Use PIT_TICK_RATE instead of CLOCK_TICK_RATE
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull SMP core updates from Thomas Gleixner:
- Reduce the preemption disabled sections in smp_call_function*().
The various smp call functions keep preemption disabled accross the
full operation which includes the wait for completion. Especially the
latter can take some time when one of the target CPUs is not
immediately responding to the IPI, which can result in large latency
spikes.
To improve this provide a per task CPU mask to track the CPUs to wait
for. That makes the information required for the wait task local and
therefore allows to reenable preemption before the wait.
While this comes with moderate extra memory cost this reduces SMP
function call induced latency measured in a fleet for high priority
tasks from ~17ms to ~1.5ms (~90%).
- Reduce the overhead of the CSD debug code by replacing the heavy
memory barriers with smp_store_release()/acquire()
- Remove obsolute unused hotplug states
* tag 'smp-core-2026-08-17' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
scftorture: Remove preempt_disable() in scftorture_invoke_one()
smp: Remove preempt_disable() from on_each_cpu_cond_mask()
smp: Remove preempt_disable() from smp_call_function()
smp: Enable preemption early in smp_call_function_many_cond()
smp: Alloc percpu csd data in smpcfd_prepare_cpu() only once
smp: Use task-local IPI cpumask in smp_call_function_many_cond()
smp: Refactor remote CPU selection in smp_call_function_any()
smp: Enable preemption early in smp_call_function_single()
smp: Disable preemption explicitly in __csd_lock_wait()
cpu/hotplug: Remove CPUHP_AP_ARM_CORESIGHT_CTI_STARTING
smp: Use release stores for csd_lock_record() state
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull generic interrupt subsystem updates from Thomas Gleixner:
- Remove pointless NULL checks of the kstats_irqs field. That's a
historical left over and not longer required.
- Add Radu Rendec as reviewer. Radu thankfully stepped up to help
reviewing the interrupt core and the related drivers code.
- The usual small improvements and fixes
* tag 'irq-core-2026-08-17' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
MAINTAINERS: Add Radu Rendec as reviewer for the interrupt subsystem
genirq/msi: Move misplaced EXPORT_SYMBOL_GPL for msi_domain_free_irqs_all()
parisc: Remove unnecessary NULL check of the kstat_irqs field
genirq: Remove unnecessary NULL check of the kstat_irqs field
irqdomain: Remove unnedded NULL check in __irq_domain_[de]activate_irq()
genirq/manage: Use irqd_get_parent_data() helper in __irq_get_irqchip_state()
irqdomain: Plug leak in irq_domain_alloc_irqs_locked() error path
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull generic entry code updates from Thomas Gleixner:
- Make syscall user dispatching configurable
Not all architectures can makes use of syscall user dispatching.
Allow them to disable the feature completely.
- Consolidate stack randomization for the generic entry code and the
architectures using it.
Stack randomization on syscall entry was sprinkled throughout the
architecture specific low level entry code and in some cases at the
wrong points, e.g. before establishing state, which violates the
non-instrumentable constraints of that code.
Clean this up by integrating stack randomization into the generic
entry code helpers so that it is invoked at the earliest possible
point right after establishing state and converting all generic entry
code using architecture over.
- Clean up the syscall number handling in the generic entry code. It
works correctly for architectures which have a separate return value
storage in pt_regs, but fails to distinguish the case where user
space handed in -1 as syscall number from the case where the entry
code rejects it by returning -1 to the callers. Aside of that the
return value functionality of those interfaces is not really
intuitive.
Fix this by separating the decision to reject a syscall (user
dispatch, ptrace, seccomp ...) from the potential modification of the
syscall number through these mechanisms.
This solves most of the problems for architectures which do not have
a separate return value storage in pt_regs except for the case where
a tracepoint has a BPF script or a probe attached which overwrite
both the syscall number and the return value. But that's a problem
which cannot be solved in the generic code, that only can be
addressed by separating the storage model in the affected
architectures.
* tag 'core-entry-2026-08-17' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (23 commits)
entry, treewide: Make syscall_enter_from_user_mode[_work]() indicate syscall execution
entry: Make return type of syscall_trace_enter() bool
entry: Rework trace_syscall_enter()
entry: Rework syscall_audit_enter()
syscall_user_dispatch: Introduce ARCH_SUPPORTS_SYSCALL_USER_DISPATCH
entry: Fix seccomp bypass after ptrace with TSYNC
x86/entry: Simplify the syscall number logic
x86/entry: Get rid of the sys_ni_syscall() indirection
x86/entry: Make syscall functions static
ptrace, treewide: Rename ptrace_report_syscall_entry() to ptrace_report_syscall_permit_entry()
seccomp, treewide: Rename and convert __secure_computing() to return boolean
entry: Use syscall number instead of rereading it
entry: Remove syscall_enter_from_user_mode()
x86/syscall: Use [syscall_]enter_from_user_mode_randomize_stack()
s390/syscall: Use enter_from_user_mode_randomize_stack()
riscv/syscall: Use syscall_enter_from_user_mode_randomize_stack()
powerpc/syscall: Use syscall_enter_from_user_mode_randomize_stack()
loongarch/syscall: Use syscall_enter_from_user_mode_randomize_stack()
entry: Provide [syscall_]enter_from_user_mode_randomize_stack()
randomize_kstack: Provide add_random_kstack_offset_irqsoff()
...
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull scheduler updates from Ingo Molnar:
"Load-balancing updates:
- 'flatten the pick': improve cgroup scheduling, which has always
been problematic and painful, which has caused various scheduling
misbehavior such as the mishandling of reniced tasks et al.
Add various cgroup weight distribution methods via cgroup_mode:
'up', 'max', 'concur' and 'tasks' - with the default being 'concur'
which is the most precise yet also most expensive version.
Finally, change cgroup scheduling to a single runqueue (Peter
Zijlstra)
- Series to improve the scheduling latency of short slice tasks
(Vincent Guittot)
- Series to fix cluster scheduling in the presence of asymmetric
capacity (Ricardo Neri)
- Prefer fully idle cores for NOHZ balancing (Andrea Righi)
- Don't trigger active load-balancing if src_rq->curr is not on_rq
(Xin Zhao)
PSI updates:
- Skip irqtime accounting when no new irq time has elapsed (Usama
Arif)
Scheduler debugging updates:
- Remove unused schedstats (Shrikanth Hegde)
- Defer freeing of cpumask memblock memory to initcall (Waiman Long)
Misc fixes and updates by Yu C Chen, K Prateek Nayak, Peter Zijlstra,
Vincent Guittot, Xin Zhao, Yury Norov, Zhan Xusheng"
* tag 'sched-core-2026-08-17' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (33 commits)
sched/fair: Fix flat hierarchy
sched/isolation: Defer freeing of cpumask memblock memory to initcall
sched/topology: Restore SD_PREFER_SIBLING in domains with asymmetric capacity
sched/fair: Allow load balancing between CPUs of identical capacity
sched/fair: Skip misfit load accounting when the destination CPU cannot help
sched/fair: Check CPU capacity before comparing group types during load balance
sched/fair: Also gate overloaded status update for SD_ASYM_CPUCAPACITY
sched/fair: Do not skip CPUs of similar capacity with busy SMT siblings
sched/fair: Prefer fully idle cores for NOHZ balancing
stop_machine: Make stop_one_cpu_nowait() return void
sched/eevdf: Delayed dequeue task can't preempt
sched/fair: Fix stale comments referring to removed CFS concepts
sched/debug: Remove unused schedstats
sched/psi: skip irqtime accounting when no new irq time has elapsed
sched/fair: Reflow sched_balance_rq()
sched/fair: Simplify balance_interval reset logic in sched_balance_rq()
sched/fair: Don't trigger active lb if src_rq->curr is not on_rq
sched/eevdf: Speedup short slice task scheduling
sched/eevdf: Always update slice protection
sched/eevdf: Cancel slice protection if short slice task is eligible
...
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull locking updates from Ingo Molnar:
"Futexes:
- Use runtime constants for futex_hash computation (K Prateek Nayak,
Peter Zijlstra)
- Optimise the size check get_futex_key() (Sebastian Andrzej Siewior)
- Avoid private hash use-after-free on final put (Felix Hoffmann)
- Tell kmemleak we're not leaking __futex_queues (Peter Zijlstra)
Rust integration updates:
- Implement refcounted interrupt disable and SpinLockIrq for Rust
(Boqun Feng, Heiko Carstens, Joel Fernandes, Lyude Paul)
- Rust sync: add helpers for mb, dma_mb and friends; add generic
memory barriers and use LKMM atomics instead of Rust atomics in the
revocable code (Gary Guo)
- Add abstraction and integrate synchronize_rcu() (Philipp Stanner)
Lock debugging:
- Add qspinlock contended_release tracepoint (Dmitry Ilvokhin, Peter
Zijlstra)
- Enable the printing of held locks of remote running tasks and print
task CPU (Ingo Molnar)
- percpu-rwsem: Annotate intentional data race in readers_active_check()
(Sun Shaojie)
Misc fixes and updates by Boqun Feng, Peter Zijlstra, Fangrui Song,
Naveen Kumar Chaudhary and Thomas Huth"
* tag 'locking-core-2026-08-17' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (44 commits)
rust: sync: Introduce SpinLockIrq::lock_with() and friends
rust: sync: Add SpinLockIrq
rust: sync: Use super::* in spinlock.rs
rust: helper: Add spin_{un,}lock_irq_{enable,disable}() helpers
rust: Introduce interrupt module
s390/preempt: Enable HAS_SEPARATE_PREEMPT_RESCHED_BITS
arm64: sched/preempt: Enable HAS_SEPARATE_PREEMPT_RESCHED_BITS
preempt: Introduce HAS_SEPARATE_PREEMPT_RESCHED_BITS
sched: Avoid signed comparison of preempt_count() in __cant_migrate()
sched: Remove the unused preempt_offset parameter of __cant_sleep()
locking: Switch to _irq_{disable,enable}() variants in cleanup guards
irq: Add KUnit test for refcounted interrupt enable/disable
irq,spin_lock: Add counted interrupt disabling/enabling
openrisc: Include <linux/cpumask.h> in smp.h
preempt: Introduce __preempt_count_{sub,add}_return()
preempt: Introduce HARDIRQ_DISABLE_BITS
preempt: Track NMI nesting to separate per-CPU counter
futex: Tell kmemleak we're not leaking __futex_queues
x86/paravirt: Trace contended_release on unlock
tracing/lock: Use TRACE_EVENT_FN() for contended_release
...
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull performance events updates from Ingo Molnar:
"uprobes updates:
- Fix a category of bugs with optimized uprobes that can clobber the
redzone area with call instruction storing return address on stack
where user code may keep temporary data without adjusting RSP.
Fix this by moving the optimized uprobes on top of 10-bytes NOP
instruction, so we can squeeze another instruction to escape the
redzone area before doing the call (Jiri Olsa, Andrii Nakryiko)
- Switch uretprobes_srcu to SRCU-fast-updown, to improve performance
(Puranjay Mohan)
Intel CPU PMU driver updates:
- Optimize ACR handling in match_prev_assignment() (Dapeng Mi)
- Fix various PMU driver bugs and data leaks (Dapeng Mi)
- Fix Intel PT stop/start with no update (Adrian Hunter)
Intel uncore PMU driver updates:
- Fix various uncore PMU setup robustness bugs (Zide Chen)
AMD uncore PMU driver updates:
- Add group validation (Sandipan Das)
.. and misc fixes and updates by Dapeng Mi, Randy Dunlap and Zide Chen"
* tag 'perf-core-2026-08-17' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (42 commits)
perf/x86: Optimize ACR handling in match_prev_assignment()
perf/x86/intel: Fix intel_cap handling on hybrid PMUs
perf/x86: Remove stale fixed counter helper and fix hybrid PMU access
perf/x86/intel: Unwind cpuc state if PEBS buffer setup fails
perf/x86: Guard intel_pmu_cpu_dead() against invalid hybrid PMU casts
perf/x86: Free hybrid state on PMU init failure
perf/x86: Unregister PMI handler on PMU init failure
perf/x86/intel/pt: Fix stop/start with no update
perf/x86/intel/pt: Use bitwise access for PERF_HES_STOPPED
perf/x86/intel/pt: Factor out pt_config_enable()
uprobes: Switch uretprobes_srcu to SRCU-fast-updown
srcu: Add lock guard for srcu_fast_updown flavor
perf/x86/intel/pt: Drop kernel-doc for deleted struct members
perf/x86/amd/uncore: Add group validation
selftests/bpf: Add tests for forked/cloned optimized uprobes
selftests/bpf: Add tests for uprobe nop10 red zone clobbering
selftests/bpf: Add reattach tests for uprobe syscall
selftests/bpf: Change uprobe/usdt trigger bench code to use nop10
selftests/bpf: Change uprobe syscall tests to use nop10
selftests/bpf: Emit nop,nop10 instructions combo for x86_64 arch
...
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull objtool updates from Ingo Molnar:
- Fix various klp-build bugs reported by Joe Lawrence (Josh Poimboeuf,
Joe Lawrence)
- Misc fixes and cleanups (Puranjay Mohan, Thomas Huth and Ingo Molnar)
* tag 'objtool-core-2026-08-17' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
objtool/klp: Fix vmlinux klp relocations for EXPORT_SYMBOL_FOR_MODULES()
objtool/klp: Fix .kcfi_traps special section extraction
objtool/klp: Fix vmlinux .klp.symid link error for .exitcall.exit symbols
objtool/klp: Fix line numbers in Module.symvers parse errors
objtool/klp: Fix relocations for EXPORT_SYMBOL_FOR_MODULES() symbols
objtool/klp: Allow new references to module exports
objtool/klp: Don't match local symbols against exports
objtool/klp: Fix cross-module klp relocation section naming
objtool/klp: Explicitly disallow patching or referencing init code/data
objtool/klp: Ignore replacement offset of empty x86 alternatives
objtool/klp: Fix size of empty special section entries
objtool/klp: Fix vmlinux .klp.symid link error for .no_trim_symbol symbols
objtool/headers: Sync tools/include/linux/objtool_types.h with include/linux/objtool_types.h
objtool: Replace __ASSEMBLY__ with __ASSEMBLER__ in header files
objtool/klp: Fix symbol resolution for duplicate data symbols
objtool/klp: Add .klp.symid for sympos disambiguation
objtool/klp: Skip hidden directories when finding objects
objtool/klp: Fix false module dependencies caused by dead relocs
objtool/klp: Normalize Module.symvers paths to module names
objtool/klp: Fix module name normalization for paths with dots
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git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux
Pull powerpc updates from Madhavan Srinivasan:
- Enable Rust for ppc64le
- ppc4xx gpio driver updates
- Add power12 base enablement support
- Validate arch_compat against host compatibility mode
- Simplify bootx_scan_dt_build_struct() in powermac platform
- Implement get_direction() in cpm2
- Use cpu_relax() in ps3_create_spu()
- Add NULL guard for cause_ipi in smp_muxed_ipi_message_pass
- Fixes to handle pseries watchdogs in kdump path
- Fix missing r2 clobber in PCREL inline assembly
- Set GPIO chip parent on ppc44x
- KVM: Introduce KVM_CAP_PPC_COMPAT_CAPS and wire up ioctl
- KVM: Use generic xfer to guest work function
- Enable to run posix cpu timers in task context
- Misc fixes and cleanups
Thanks to Aditya Gupta, Alice Ryhl, Amit Machhiwal, Andrew Morton,
Anushree Mathur, Athira Rajeev, Bartosz Golaszewski, Cédric Le Goater,
Christian König, Christophe Leroy (CS GROUP), Gary Guo, Gaurav Batra,
Gautam Menghani, Gou Hao, Hari Bathini, Harsh Prateek Bora, jiazhenyuan,
Jinjie Ruan, Link Mauve, Linus Walleij, Mahesh Kumar G Mahesh
Salgaonkar, Michael Walle, Michal Suchánek, Mukesh Kumar Chaurasiya
(IBM), Nicholas Piggin, Nikhil Kumar Singh, Praveen K Pandey, Ritesh
Harjani (IBM), Rosen Penev, Saket Kumar Bhaskar, Shrikanth Hegde,
Sourabh Jain, Thorsten Blum, Vaibhav Jain, Venkat Rao Bagalkote, Vishal
Chourasia, Wentao Guan, and Yanfei Xu.
* tag 'powerpc-7.3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: (62 commits)
powerpc/pseries/iommu: switch to Default DMA window during kdump
powerpc/configs: enable CONFIG_RAS to fix EDAC support
KVM: PPC: Document KVM_PPC_GET_COMPAT_CAPS ioctl
KVM: PPC: Book3S HV: Add support for compat CPU capabilities for KVM on PowerNV
KVM: PPC: Book3S HV: Implement compat CPU capability retrieval for KVM on PowerVM
KVM: PPC: Introduce KVM_CAP_PPC_COMPAT_CAPS and wire up ioctl
gpio: ppc44x: use dev_name() for chip label
gpio: ppc44x: fix undefined behavior in GPIO_MASK2 macro
gpio: ppc44x: drop PPC-specific IO helpers
gpio: ppc44x: Convert GPIO to generic MMIO
gpio: ppc44x: Use platform resource helper for GPIO MMIO
gpio: ppc44x: Use module platform driver helper for GPIO
gpio: ppc44x: update all 4xx to 44x
gpio: move ppc4xx gpio driver from arch/powerpc to drivers/gpio
KVM: PPC: Use min() in kvm_vm_ioctl_check_extension()
KVM: PPC: booke: Use min() in watchdog_next_timeout()
powerpc/perf: Add power12 Base Performance Monitoring support
powerpc: Add Power12 architected mode
powerpc: Add Power12 raw mode
powerpc/pseries: Limit PVR list to 16 entries for CAS negotiation
...
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git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Pull arm64 updates from Will Deacon:
"There's a reasonable amount of stuff here, including a bunch of
updates to the perf PMU drivers and some MPAM updates to expose the
memory bandwidth counters via resctrl.
On the architecture side, some highlights include support for BBML3
and steps towards support for an architectural NMI solution, all
wrapped up in a web of fixes for latent issues identified by Sashiko.
ACPI:
- Combine reads of AMU counters into a single FFH feedback counter op
Confidential computing:
- Fix smp_processor_id() in preemptible context when retrieving an
attestation token inside a realm
- Convert pKVM over to a "CC platform"
- Clean-up our SWIOTLB configuration in preparation for reworking the
handling of encrypted/decryped DMA buffers in the dma-mapping tree
CPU errata handling:
- Work around broken device memory ordering on NVIDIA Olympus cores
- Fix broken 'nospectre_bhb' command-line option
- Select the idle loop backend instruction on the command-line
CPU features:
- Replace our BBML2-noabort feature with the new architectural BBML3
feature
- Disable in-kernel BTI for recent versions of Clang due to issues
with livepatch that are still being investigated
- Clean-up documentation describing which ID register fields are
exposed to userspace
Interrupts:
- Preliminary work towards supporting FEAT_NMI, which cleans up our
IRQ entry code and fixes some latent issues with pseudo-NMI
- Support for an SDEI backend to trigger an NMI backtrace
Memory management:
- Treat all devices as coherent when CLIDR_EL1.LoC == 0
- Fix no-map handling of sub-page-sized regions
- Second attempt at unmapping the linear aliases of the kernel data
and bss sections
- Fix EFI runtime calls when software-PAN is enabled
Miscellaneous:
- Add Mark Rutland as a reviewer!
- Tidy-up our futex cmpxchg logic when using the new LSUI
instructions
- Drop the requirement on DYNAMIC_FTRACE_WITH_CALL_OPS when
selecting HAVE_DYNAMIC_FTRACE_WITH_DIRECT_CALLS
- Fix a false-positive KCSCAN splat in the delay loop
- Use a portable typedef for 128-bit scalar types in our UAPI headers
- Non-critical fixes for Sashiko reports all over
MPAM:
- Hook MPAM memory bandwidth counters into resctrl's counter
assignment interface
- Fix a quirk in the MPAM bandwidth counting on Nvidia T241 so that
it also applies to 63 bit counters
Perf:
- Workarounds for hardware issues in the CMN-S3 PMU (Graviton 5) and
CPU PMU (NVIDIA Olympus again!)
- Add support for the DDR PMU on Marvell CN20K SoCs
- Add support for Picoheart implementations of the DCW PCIe PMU
- Add support for Channel/Rank/Bank filtering in the CXL PMU driver
- Add support for 64-bit counters in the CSPMU device
- Add support for revision 2 of the CMN S3 PMU
Ptrace:
- Fix a decade-old bug in our handling of seccomp and tracing on
syscall entry
- Fix regset handling for inactive SVE and SSVE registers
Selftests
- Add some tests for the decade-old bug that we just tried to fix in
our syscall entry path
- Fix SVE test crash on SME-only CPUs"
* tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: (95 commits)
arm64/efi: Avoid voluntary preemption with efi_mm installed
arm64: bti: Disable in-kernel BTI with recent versions of Clang
arm64: entry: Avoid unnecessary local_irq_disable() on kernel exit
irqchip/gic-v3: make the unmasking of pseudo-NMIs explicit when handling IRQs
arm64: Disable KCSAN instrumentation in delay.o
arm_mpam: Disable driver unbind to avoid UAF
arm_mpam: Fix a NULL pointer dereference on unbinding after an error interrupt
perf: arm_pmuv3: Zero initialize hw_id branch stack field
arm64: mm: Unmap kernel data/bss entirely from the linear map
iommu/arm-smmu-v3-sva: Use system_supports_bbml3() to detect CPU feature
perf/arm-cmn: Support CMN S3 r2
perf/arm-cmn: Plumb in new filter types
perf/arm-cmn: Refactor event filter data
perf/arm-cmn: Refactor event filter programming
perf/arm-cmn: Rename filter variables for clarity
arm64: mm: fix accidental linear mapping of no-map reserved memory
tools: Ensure tools copy of linux/filter.h exports the UAPI
kselftest/arm64: Fix abi test compilation errors
arch: arm64: add early_param idle=<wfi|yield|nop>
arm64: entry: mask DAIF before returning from C EL1 handlers
...
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Prasad Kumpatla <prasad.kumpatla@oss.qualcomm.com> says:
Address review findings for the recently merged AudioReach TDM backend
support.
The first patch fixes a typo in the newly added QAIF clock ID names by
renaming the LAPSS-prefixed identifiers to LPASS and updating all
corresponding in-tree users.
The remaining patches address issues identified in the AudioReach TDM
configuration and machine-driver paths:
- Zero-initialize AudioReach module configuration structures so
unspecified slot parameters correctly fall back to topology defaults.
- Distinguish between missing TDM configuration and malformed TDM slot
properties by using separate return codes, preventing valid DT
configuration errors from being silently ignored.
- Fix sc8280xp TDM hw_params error handling by properly distinguishing
optional and invalid TDM slot configurations and propagating errors
accordingly.
All issues were reported by Sashiko.
Link:
https://sashiko.dev/#/patchset/20260804070307.117119-1-prasad.kumpatla@oss.qualcomm.com
Link: https://patch.msgid.link/20260818084655.3240284-1-prasad.kumpatla@oss.qualcomm.com
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The QAIF clock IDs were introduced with a LAPSS prefix typo. Rename
them to use the existing LPASS naming convention and update all
corresponding in-tree users.
Since these IDs are new, rename them directly instead of keeping
backward-compatible aliases.
Reported-by: Sashiko <sashiko-bot@kernel.org>
Link: https://sashiko.dev/#/patchset/20260804070307.117119-1-prasad.kumpatla@oss.qualcomm.com
Signed-off-by: Prasad Kumpatla <prasad.kumpatla@oss.qualcomm.com>
Link: https://patch.msgid.link/20260818084655.3240284-2-prasad.kumpatla@oss.qualcomm.com
Signed-off-by: Mark Brown <broonie@kernel.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip
Pull xen updates from Juergen Gross:
- Small cleanups for the Xen ACPI pad driver and the gnttab driver
- Fix an issue with Xen PV device initialization seen with QubesOS
tests
- Fixes for the Xen balloon driver and the xenbus driver
- Simplify Xen related kernel configuration
* tag 'for-linus-7.3-rc1-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip:
xenbus: Unregister reboot notifier on init failure
x86/xen: Drop CONFIG_XEN_PVHVM_SMP
xen: Drop CONFIG_XEN_AUTO_XLATE
xen: Drop CONFIG_XEN_PVHVM
x86/xen: Remove redundant config dependency on X86_LOCAL_APIC
x86/xen: fix init of balloon stats again
xen/xenbus: check otherend_id only after it has been initialized
xen/xenbus: log more information when device state got reset
Xen/gnttab: adjust two uses of sizeof()
ACPI: PAD: xen: Stop setting acpi_device_name/class()
|
|
git://git.kernel.org/pub/scm/linux/kernel/git/liveupdate/linux
Pull liveupdate updates from Mike Rapoport:
"Kexec Handover:
- Fix size calculation in kho_preserved_memory_reserve() for
preservations larger than 2 GiB
Live Update Orchestrator:
- move liveupdate selftest utilities into a library so that selftests
of subsystems participating in liveupdate, e.g. PCI and VFIO, can
use them and drop direct ioctl calls from the tests
- add end to end liveupdate test infrastructure that allows running
the tests across a kexec in QEMU
- remove redundant INIT_LIST_HEAD in luo_session_alloc()
- remember the error status of an FLB retrieve() and return it on
subsequent attempts rather than retrying retrieve() with an FLB in
an unexpected state
- reference count the outgoing FLB so that it cannot be freed while a
caller is using it, the same way it's done for the incoming FLB
- reject nonzero reserved field in LIVEUPDATE_SESSION_FINISH so that
it can be reused by a future extension"
* tag 'liveupdate-v7.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/liveupdate/linux:
kho: fix size calculation in kho_preserved_memory_reserve()
selftests/liveupdate: Move luo_test_utils.* into a reusable library
selftests/liveupdate: Use luo_test_utils.c for liveupdate ioctl APIs
liveupdate: Remember FLB retrieve() status
liveupdate: Reference count outgoing FLB data
liveupdate: reject nonzero reserved value for SESSION_FINISH
liveupdate: Remove redundant INIT_LIST_HEAD in luo_session_alloc
selftests/liveupdate: add end to end test infrastructure and scripts
|
|
Merge in late fixes in preparation for the net-next PR.
Conflicts:
drivers/dpll/dpll_core.c
drivers/dpll/dpll_netlink.c
33f016b23a219 ("dpll: fix NULL deref in dpll_device_ops() during teardown race")
b1d0c412088e3 ("dpll: add STATE_CONNECTED_OVERRIDE pin capability")
https://lore.kernel.org/aoR9YYY2P5--3x0N@sirena.org.uk
https://lore.kernel.org/aoR9VmKllVGwmQn_@sirena.org.uk
No adjacent changes.
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
|
|
git://git.kernel.org/pub/scm/linux/kernel/git/liveupdate/linux
Pull kexec updates from Mike Rapoport:
- Deduplicate crash memory allocation and the exclusion of reserved
crash kernel regions from architecture specific code into a generic
crash_prepare_headers() and enable crashkernel CMA reservation on
arm64 and riscv reservation on arm64 and riscv.
- Skip purgatory checksum verification when the kexec segments cannot
be corrupted by DMA, which saves about 250ms on kexec.
- Replace __ASSEMBLY__ with the compiler provided __ASSEMBLER__ in
include/linux/kexec.h.
- Fix a keyring refcount imbalance in the kdump kernel's dm-crypt key
restore path, which over-dropped the user keyring reference when
more than one key was restored.
* tag 'kexec-v7.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/liveupdate/linux:
crash_dump: release keyring reference at the correct time
kexec: Replace __ASSEMBLY__ with __ASSEMBLER__ in header file
kexec_file: skip checksum verification when safe
riscv: kexec_file: Add support for crashkernel CMA reservation
arm64: kexec_file: Add support for crashkernel CMA reservation
powerpc/kexec_file: Use crash_exclude_core_ranges() helper
LoongArch: kexec_file: Use crash_prepare_headers() helper to simplify code
riscv: kexec_file: Use crash_prepare_headers() helper to simplify code
x86/crash: Use crash_prepare_headers() helper to simplify code
arm64: kexec_file: Use crash_prepare_headers() helper to simplify code
crash: Add crash_prepare_headers() to exclude crash kernel memory
powerpc/crash: sort crash memory ranges before preparing elfcorehdr
riscv: kexec_file: Fix crashk_low_res not exclude bug
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git://git.kernel.org/pub/scm/linux/kernel/git/rppt/memblock
Pull memblock updates from Mike Rapoport:
"Non-urgent fixes:
- Fix calculation of node_spanned_pages when running
with 'kernelcore=mirror'
- Properly handle failure to allocate per_cpu_nodestats
in free_area_init_core_hotplug()
- Fix deferred initialization of the memory map for
configurations where node's RAM end is not aligned
on PAGES_PER_SECTION
Cleanups:
- Remove redundant pageblock_align() call in free_unused_memmap()
- Remove unnecessary invalid range checks in users of memblock
iterators. Some users of for_each_mem_range() and
for_each_mem_pfn_range() verify that start < end for each range.
This is redundant because memblock iterators guarantee to never
return an invalid range
- Stop overlapping zones with 'kernelcore=mirror' and align behaviour
of 'kernelcore=mirror' with other variants of kernelcore and
movablecore
- Remove redundant updates of numa_nodes_parsed mask in the callers
of numa_add_memblk(), the latter always updates the mask anyway
- Remove unnecessary initialization of pgdat->per_cpu_nodestats to
NULL, the variable is reset to the actual value a few lines below"
* tag 'memblock-v7.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rppt/memblock: (25 commits)
mm/mm_init: deferred_grow_zone(): fix out-of-range first_deferred_pfn
mm/mm_init: remove unnecessary initialization of pgdat->per_cpu_nodestats
mm/mm_init: remove redundant memset in free_area_init()
mm: numa_memblks: use numa_add_reserved_memblk() in numa_cleanup_meminfo()
arch_numa: remove redundant node_possible_map assignment
mm: numa_memblks: remove redundant numa_nodemask_from_meminfo()
LoongArch: remove redundant numa_nodes_parsed node_set()
arch_numa: remove redundant numa_nodes_parsed node_set()
x86/numa: remove redundant numa_nodes_parsed node_set()
of/numa: remove redundant numa_nodes_parsed node_set()
ACPI: NUMA: remove redundant numa_nodes_parsed node_set()
mm: numa_memblks: set numa_nodes_parsed in numa_add_memblk()
mm/mm_init: handle alloc_percpu failure in free_area_init_core_hotplug
mm/mm_init: drop overlap_memmap_init()
mm/mm_init: don't overlap NORMAL and MOVABLE zones with kernelcore=mirror
mm/hugetlb: remove unnecessary empty range check in hugetlb_bootmem_set_nodes()
mm: remove unnecessary empty range check in early_calculate_totalpages()
powerpc64/kasan: Remove unreachable invalid range check in kasan_init_phys_region()
ARM: remove unreachable invalid range check in kasan_init()
riscv: remove unreachable invalid range check in kasan_init()
...
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git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull power management updates from Rafael Wysocki:
"As has been the case for quite some time, this set of changes is
dominated by cpufreq updates including intel-pstate and amd-pstate
driver updates, minor fixes and cleanups of other assorted cpufreq
drivers, schedutil governor updates, fixes of the Rust bindings, new
hardware support (IPQ5210 in qcom-nvmem), and some updates of self
tests related to cpufreq.
The second largest group of changes are cpuidle updates consisting of
intel_idle driver updates and ACPI processor idle driver updates, both
mostly related to ACPI _LPI support.
There are also updates related to system sleep, mostly in the
hibernation core code, two operating performance points (OPP) updates,
one runtime PM framework update, one power capping update, and some
tools updates including the addition of ACPI CPPC support to cpupower.
Specifics:
- Minor fixes and cleanups in assorted cpufreq drivers (Dan
Carpenter, Guru Das Srinagesh, Haoxiang Li, Karl Mehltretter, Sasha
Finkelstein, and Pan Chuang)
- Fix cpufreq table creation and bios_limits() callback in the Rust
bindings (Priya Bala Govindasamy)
- Add IPQ5210 support to qcom-nvmem driver (Varadarajan Narayanan)
- Adjust the .adjust_perf() cpufreq driver callback to allow the
maximum performance value to be passed to drivers and update the
intel_pstate driver to use it (Rafael Wysocki)
- Set policy->cur to the actual requested frequency in the
intel_pstate driver when the performance policy is used (Rafael
Wysocki)
- Simplify HWP handling on Broadwell processors in intel_pstate
(Rafael Wysocki)
- Fix setting minimum P-state at init time in intel_pstate (Rafael
Wysocki)
- Consolidate frequency values computation in intel_pstate and clean
up code in that driver (Rafael Wysocki)
- Add missing kernel-doc descriptions for structure and union members
in the amd-pstate driver (David Vernet)
- Handle missing policy in dynamic EPP callbacks in the amd-pstate
driver (EDAMAMEX)
- Introduce EXPORT_SYMBOL_FOR_PSTATE_UT() to export amd-pstate driver
symbols to the amd-pstate-ut subdriver (K Prateek Nayak)
- Add dynamic EPP as an "energy_performance_preference" mode in
amd-pstate, remove the "amd_dynamic_epp" kernel command line option
and the "dynamic_epp" sysfs attribute, and update the dynamic_epp
documentation accordingly (K Prateek Nayak)
- Add unit tests for CPPC Performance Priority and the "dynamic" EPP
mode in the amd-pstate driver (K Prateek Nayak)
- Set min_limit_freq based on bios_min_perf in amd-pstate and remove
the defensive check for bios_min_perf from it (K Prateek Nayak)
- Fix EPP return type and handle errors in amd-pstate during
initialization, toggle auto_sel in active mode on shared memory
systems, and cache the firmware programmed EPP value (Marco
Scardovi)
- Skip tests in amd-pstate-ut if the amd-pstate driver is not in
active use (Qianheng Peng)
- Replace sprintf() with sysfs_emit() in sysfs show in the cpufreq
schedutil governor and fix a self-contradictory comment in
sugov_iowait_apply() (Zhongqiu Han)
- Fix the usage example for the sampling_rate tunable of the ondemand
cpufreq governor in admin-guide (wangxiaodong)
- Avoid using deep idle states during initialization in the
intel_idle driver to work around device handling issues (Rafael
Wysocki)
- Fix and refactor the ACPI processor driver code related to ACPI
_LPI support and add ACPI _LPI support to intel_idle based on that
ACPI processor driver update (Rafael Wysocki)
- Backup and restore governor for cpufreq sptests (Yiwei Lin)
- Remove unnecessary sudo from quick_shuffle() and remove unused
local variables from switch_show_governor() in cpufreq selftests
(Jinseok Kim)
- Rename the PM core module parameter prefix to "pm" and allow the PM
transition (DPM) watchdog to be disabled by default (Tzung-Bi Shih)
- Fix off-by-one in wakelocks number limit check in the system sleep
sysfs interface (Haowen Tu)
- Remove kernel-doc markings from helper descriptions in the core
hibernation code (Adi Nata)
- Use %pe to print error pointer values in the hibernation core
(Ronan Marchal)
- Fix memory leak in snapshot_write_next() error path (Malaya Kumar
Rout)
- Delay allocating and linking the next swap_map_page in the
hibernation image saving code until another image page actually
needs to be recorded (Haesung Kim)
- Fix cleanup ordering around scope-based pointers in OPP (Gregor
Herburger).
- Use clk_get_optional() for optional clocks in OPP (Praveen Talari).
- Stop setting runtime_error on runtime resume callback failures to
allow drivers to recover from resume issues (Praveen Talari)
- Handle PMU registration failure during probe in the intel_rapl_tpmi
driver (Sumeet Pawnikar)
- Avoid optional imports in intel_pstate_tracer unless they are
really needed (Yousef Alhouseen)
- Add generic CPPC performance display to the cpupower utility, build
and call CPPC information on non-AMD processors, make cpupower
print kernel and hardware frequency information, and add libm to
cpupower for generic CPPC view (Jeremy Linton)
- Remove conditional return with no effect from cpupower (Sang-Heon
Jeon)"
* tag 'pm-7.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (76 commits)
cpufreq: imx6q: fix out-of-bounds write when probed more than once
cpufreq: imx6q: fix devres accumulation across driver rebind
rust: cpufreq: Fix temporary write in Registration::bios_limit_callback
rust: cpufreq: Add CPUFREQ_TABLE_END as last table entry in TableBuilder::to_table
opp: Use clk_get_optional() to avoid leaving opp_table->clk as an error pointer
intel_idle: Avoid using deep idle states during initialization
cpupower: remove conditional return with no effect
cpufreq: intel_pstate: Adjust policy->cur in active mode to policy
cpufreq/amd-pstate: Document missing kernel-doc members
cpufreq/amd-pstate-ut: Add unit test for CPPC Performance Priority
cpufreq/amd-pstate-ut: Add unit test for "dynamic" EPP mode
cpufreq/amd-pstate: Reduce the scope of exported symbols
Documentation/amd-pstate: Update dynamic_epp documentation with new behavior
cpufreq/amd-pstate: Remove "amd_dynamic_epp" cmdline and "dynamic_epp" sysfs
cpufreq/amd-pstate: Add dynamic EPP as an "energy_performance_preference" mode
cpufreq/amd-pstate: Extract platform profile to EPP conversion into a helper
cpufreq/amd-pstate: Remove the defensive check for bios_min_perf
cpufreq/amd-pstate: Set min_limit_freq based on bios_min_perf
powercap: intel_rapl_tpmi: Handle PMU registration failure during probe
PM: sleep: Allow disabling DPM watchdog by default
...
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git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull ACPI support updates from Rafael Wysocki:
"The most significant change here is the elimination of struct
acpi_driver that has no more users in the tree now along with some
documentation related to it, and a follow-up update to set the "no PM"
flag for all ACPI devices that are now only going to play the role of
other devices' "companions" (in analogy with DT nodes).
There is also a significant update of irqchip code related to ACPI
done in order to enable GICv5 IWB ACPI probe ordering detection on
ARM, which involves RISC-V interrupt controller management code
refactoring to extract generic code from it into the common ACPI IRQ
code.
The rest is mostly fixes, including some fallout of the _OSC handling
rework in 7.0, ACPI CPPC library fixes, a workaround for registering
ACPI platform devices with overlapping I/O or memory resources, an
ACPI EC driver fix related to probe deferral on platforms using
HW-reduced ACPI, two ACPI battery driver fixes and a workaround for
handling model numbers with unprintable characters in it, probe error
cleanup and driver unload code path fixes, hardware error reporting
fixes, documentation fixes, and assorted code cleanups all over.
Specifics:
- Eliminate struct acpi_driver whose users have all been converted to
bind to platform devices or auxiliary devices and set the "no power
management" flag for all struct acpi_device objects (Rafael
Wysocki)
- Avoid complaints regarding missing _OSC features on platforms where
OSC_CAPABILITIES_MASK_ERROR is set in _OSC error bits even though
all of the requested features are actually acknowledged (Rafael
Wysocki)
- Avoid printing confusing _OSC messages for non-PCIe host bridges
without _OSC which is a valid configuration (Kazuma Kondo)
- Use correct region struct for BERT region size check and properly
map BERT and CCEL data to their ACPI tables (Thomas Renninger)
- Add acpi_device_clear_deps(), refactor RISC-V interrupt controller
management code to extract generic code from it into the common
ACPI IRQ code, and enable GICv5 IWB ACPI probe ordering detection
on ARM on top of that (Lorenzo Pieralisi)
- Stop using acpi_device_name() in the PNP core, stop setting
acpi_device_name/class() in the Xen variant of the ACPI PAD
(Processor Aggregator Device) driver, and make the Loongarch laptop
driver stop setting acpi_device_class() (Rafael Wysocki)
- Fix issues related to the desired_perf register access in the ACPI
CPPC library and update it to avoid unnecessary overhead (Christian
Loehle)
- Simplify acpi_get_pci_dev() with the help of a mutex guard,
introduce acpi_dev_get_pci_dev() for code that has a struct ACPI
device for which it wants to get the struct pci_dev pointer of the
associated PCI device, and use it in the ACPI video bus driver
(Rafael Wysocki)
- Avoid registering platform devices with resource overlaps in the
ACPI core device enumeration code (Rafael Wysocki)
- Clean up the list of included header files in the NHLT table parser
and validate the table and record lengths in the FPDT parser (Andy
Shevchenko and Pengpeng Hou)
- Unregister the cpufreq notifier on init failure in the ACPI
processor driver (Can Peng)
- Validate MADT IOAPIC entry bounds during IOAPIC hotplug lookup in
the ACPI processor driver (Pengpeng Hou)
- Avoid _REG disconnect on probe deferrals related to GPIO IRQ in the
ACPI EC driver (Zhu Ling)
- Update kerneldoc comments of two structures in the ACPI bus type
code to use correct struct member names to avoid warnings (Randy
Dunlap)
- Use a correct function parameter name in kernel-doc in the ACPI fan
driver (Randy Dunlap)
- Update ACPI fan IDs to follow modern style and clean up header file
inclusions in the ACPI fan driver (Andy Shevchenko)
- Use devm_acpi_install_notify_handler() to replace a custom
open-coded devres-based management of an ACPI notify handler in the
ACPI fan driver (Rafael Wysocki)
- Adjust charging status validation check in the ACPI battery driver
to avoid incorrect status reporting (Rafael Wysocki)
- Merge consecutive battery notifications in the ACPI battery driver
to reduce the pressure on STA, _BST and _BIX/_BIF ACPI control
methods and make that driver use kstrtoul() instead of
sscanf("%lu\n") (Rong Zhang)
- Sanitise model_number in the ACPI battery driver by dropping
unprintable characters (Kate Hsuan)
- Remove a node_set() call that is redundant from
acpi_parse_memory_affinity() (Sang-Heon Jeon)
- Prevent kernel-doc warnings by converting 2 function description
comments to kernel-doc format (Randy Dunlap)
- Fix docs build error in the ACPI admin-guide documentation (Randy
Dunlap)
- Replace __get_free_page() with kmalloc() in the code handling ACPI
NVS memory during system suspend/resume (Mike Rapoport)
- Fix card device cleanup on registration failure in the core PNP
code (Yuho Choi)
- Drop an unused assignment of pnp_device_id driver data (Uwe
Kleine-König)
- Clear driver_data on all paths that free acpi_pci_root in
acpi_pci_root_add() (Chen Pei)
- Add locking around evaluation of ACPI control methods in the ACPI
TAD driver to avoid race conditions (Rafael Wysocki)
- Handle repeated SEA error storms in APEI (Junhao He)
- Fix ERST timeout unit conversion in APEI (Nirmoy Das)
- Fix ARM section length accounting after header in the ACPI APEI
GHES driver (TanZheng)
- Mark ghes_in_nmi_spool_from_list() as maybe unused (Rui Qi)
- Introduce helper function acpi_dev_is_video_device() and use it in
the core ACPI device enumeration code, in the ACPI video bus
driver, in the ACPI support code for I2C, in the PCI VGA driver,
and in the x86 platform thinkpad_acpi driver (Andy Shevchenko)
- Add a quirk to use the native backlight on Acer Nitro AN515-46 to
the ACPI video bus driver (Marcos Paulo Medeiros)
- Release PCI device reference after lookup in
video_detect_portege_r100() in the ACPI video bus driver (Yuho
Choi)"
* tag 'acpi-7.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (61 commits)
ACPI: scan: Avoid registering platform devices with resource overlaps
ACPI: APEI: Handle repeated SEA error storms
ACPI: APEI: Fix ERST timeout unit conversion
ACPI: APEI: GHES: fix ARM section length accounting after header
ACPI: video: Release PCI device reference after lookup
ACPI: PCI: Avoid misleading _OSC messages for non-PCIe host bridges without _OSC
ACPI: TAD: Add locking around AML evaluations
ACPI: video: force native backlight on Acer Nitro AN515-46
ACPI: CPPC: Evaluate performance-control PCC use once
ACPI: CPPC: Avoid locking standalone full-width registers
ACPI: CPPC: Avoid unnecessary reads for full-width writes
ACPI: CPPC: Stop reading desired_perf in cppc_get_perf()
ACPI: CPPC: Skip desired_perf read in cppc_get_perf()
ACPI: CPPC: Reject desired_perf reads on _CPC revision 4+
ACPI: processor: Unregister cpufreq notifier on init failure
ACPI: bus: Avoid confusing complaints regarding missing _OSC features
ACPI: battery: Adjust charging status validation check
ACPI: pmtmr: Convert to kernel-doc format
ACPI: bus: Use correct struct member names
ACPI: fan: Use correct function parameter name in kernel-doc
...
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Add support for the MT7628 embedded switch's tag.
The MT7628 tag is merged with the VLAN TPID field when a VLAN is
appended by the switch hardware. It is not installed if the VLAN tag is
already there on ingress. Due to this hardware quirk the tag cannot be
trusted for port 0 if we don't know that the VLAN was added by the
hardware. As a workaround for this the switch is configured to always
append the port PVID tag even if the incoming packet is already tagged.
The tagging driver can then trust that the tag is always accurate and
the whole VLAN tag can be removed on ingress as it's only metadata for
the tagger.
On egress the MT7628 tag allows precise TX, but the correct VLAN tag
from tag_8021q is still appended or the switch will not forward the
packet.
Signed-off-by: Joris Vaisvila <joey@tinyisr.com>
Link: https://patch.msgid.link/20260813190241.789323-4-joey@tinyisr.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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After previous patch, the branch marking a socket rejected in
vsock_accept() is unreachable, and nothing ever sets vsk->rejected
elsewhere.
In fact, since commit d021c344051a ("VSOCK: Introduce VM Sockets"),
where `rejected` was introduced, there has never been a path that sets
sk_err on a listening socket, so that branch has been dead code since
the beginning.
Therefore, we can remove the `rejected` field from vsock_sock structure.
Suggested-by: Stefano Garzarella <sgarzare@redhat.com>
Signed-off-by: Nguyen Dinh Phi <phind.uet@gmail.com>
Reviewed-by: Stefano Garzarella <sgarzare@redhat.com>
Link: https://patch.msgid.link/20260813173024.2362935-3-phind.uet@gmail.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux into gpio/for-next
Linux 7.2
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https://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap into gpio/for-next
regmap-irq: Provide IRQ resource request and release callbacks
The users which rely on regmap IRQ to create the IRQ chip may also
want to have an additional tracking of the IRQ requests and releases.
Provide a callback for them.
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KVM x86 misc changes for 7.3
- Fix VPID virtualization bugs where KVM would fail to flush hardware TLBs.
- Harden the SNP and TDX "populate" ioctls against bad input, and to prepare
for supporting in-place private<=>shared conversion.
- Fix a variety of #DB priority bugs.
- Fix a class of races related to enabling Hyper-V emulation on a vCPU after
the vCPU is visible to the rest of KVM.
- Use static calls for nested virtualization ops.
- Move more KVM-internal code out of x86's kvm_host.h.
- Enumerate support for a variety of Zhaoxin instructions that don't require
explicit virtualization.
- Fix missing EFER validation bugs, including in the KVM_SET_SREGS* path.
- Harden kvm_vcpu_map() against double-mapping and thus leaking references.
- Misc fixes and cleanups, e.g. for largely benign syzkaller splats.
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The last user of this function was the recently removed vport-gre
module from openvswitch. Let's drop the function. All other modules
use the strict variant.
Signed-off-by: Ilya Maximets <i.maximets@ovn.org>
Reviewed-by: Ido Schimmel <idosch@nvidia.com>
Link: https://patch.msgid.link/20260815001942.1089545-1-i.maximets@ovn.org
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
|
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KVM guest_memfd and x86 CoCo changes for 7.3
- Forcefully invalidate SNP VMSA pages if their backing guest_memfd page is
zapped/invalidated, e.g. due to a PUNCH_HOLE in response to a Page-State
Change request.
- Rework the so called "prepare" and "invalidate" guest_memfd hooks to prepare
for in-place private<=>shared conversion, and clean up a few warts along the
way.
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KVM arch-neutral and documentation changes for 7.3
- Remove kvm_debugfs_dir if kvm_init() fails after creating KVM's debugfs.
- Document some of the "fun" gotchas with the APIC base when creating IRQCHIPs
on x86.
- Add a per-VM bitmap to track which vCPU IDs have been "claimed" but for
which the vCPU isn't yet online, and use the bitmap to reject duplicate IDs
before calling into arch code. This allows arch code to consume vcpu_id
without having to worry about cross-vCPU clobbering (at least s390 and x86
have had related bugs).
- Zero a vCPU's entry in VMX's Posted Interrupt Descriptor table used for IPI
virtualization when the vCPU is freed to fix a use-after-free where hardware
will write to a freed vCPU's PID.
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IP tunnel devices derive their advertised needed_headroom from lower
output devices. A stack of user-created devices can make the derived
value larger than the 16-bit skb header offsets can represent. Once IP
output reserves it, skb head expansion can wrap those offsets.
The runtime transmit path already caps a growing needed_headroom at 512.
Apply the same cap when tunnel configuration publishes needed_headroom
derived from a lower output device.
Capping the advertised value is safe: IP tunnel transmit still expands
the skb when a packet needs more headroom. A nonsensical stacked
configuration can therefore incur an extra reallocation, but it cannot
publish an unbounded reservation to upper layers.
Fixes: 1a37e412a022 ("net: Use 16bits for *_headers fields of struct skbuff")
Cc: stable@vger.kernel.org
Reported-by: Vega <vega@nebusec.ai>
Signed-off-by: Zhiling Zou <zhilinz@nebusec.ai>
Reviewed-by: Ido Schimmel <idosch@nvidia.com>
Link: https://patch.msgid.link/ba04a1fd6bfae2377607fad5d8f80f7eb80fd4c4.1786542637.git.zhilinz@nebusec.ai
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
|
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When CONFIG_QCOM_UBWC_CONFIG=n, compiler needs to know the definition
of ERR_PTR otherwise there will be a compilation error:
In file included from drivers/gpu/drm/msm/disp/dpu1/dpu_hw_sspp_v13.c:7:
./include/linux/soc/qcom/ubwc.h: In function ‘qcom_ubwc_config_get_data’:
./include/linux/soc/qcom/ubwc.h:45:16: error: implicit declaration of
function ‘ERR_PTR’ [-Wimplicit-function-declaration]
Fix this by including <linux/err.h>
Fixes: 1924272b9ce1 ("soc: qcom: Add UBWC config provider")
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Signed-off-by: Daniel Baluta <daniel.baluta@nxp.com>
Tested-by: Nathan Chancellor <nathan@kernel.org> # build
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus
ASoC: Updates for v7.3
A very busy release, a combination of a lot of new device work and more
people than usual doing various subsystem wide improvements in the code.
The main subsystem level change is the work Morimoto-san has been doing
to get automatic DAI format selection more widely deployed, and even
that is largely changes in the drivers to enable use of the feature
rather than framework work.
- Conversions of a lot of drivers to use the automatic DAI format
selection code from Morimoto-san.
- Many fixes and code improvements from bui duc phuc and Morimoto-san.
- Fixes for ordering problems in register default tables from Peter
Ujfalusi.
- Changes to use auto-cleanup for firmware to improve robustness from
Takashi Iwai.
- Support for firmware on more Awinc devices.
- Many changes in the Qualcomm driver stack, mostly around new platform
support.
- Support for AMD ACP7.B/F, Cirrus Logic CS35L62, Loongson 2K0300,
Meson GX formatter and interface, Qualcomm LPI MI2S, SM8475 and
WSA855 and Realtek RT1321 VA1/2 and RT766/7.
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git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest
Pull kunit updates from Shuah Khan:
"Fixes and new kunit and tools, enable new configs:
- configs: enable GPIO kunit test cases in all_tests.config
- string-stream: Replace strlcat() with strscpy() and seq_buf
- configs: enable GPIO kunit test cases in all_tests.config
Documentation:
- Test config entries shouldn't select other configs
- Fix outdated FAQ entries
Add the ability to skip entire test suites and an example test suite
that can be skipped at runtime:
- Add ability to skip entire test suites
- Add example of test suite that can be skipped at runtime"
* tag 'linux_kselftest-kunit-7.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest:
kunit: tool: fix _list_tests filtering wrong variable when list has TAP prefix
kunit: configs: enable GPIO kunit test cases in all_tests.config
kunit: string-stream: Replace strlcat() with strscpy() and seq_buf
Documentation: kunit: Fix outdated FAQ entries
Documentation: kunit: Test Kconfig entries shouldn't select other configs
kunit: Add example of test suite that can be skipped at runtime
kunit,rust: Add ability to skip entire test suites
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git://git.kernel.org/pub/scm/linux/kernel/git/ebiggers/linux
Pull crypto library test updates from Eric Biggers:
- Add comprehensive KUnit test suites for the new AES-GCM and AES-CCM
library APIs
- Add FIPS self-tests for all the AES encryption modes. This is needed
for parity with the traditional crypto API
- Fix a couple more issues in the IRQ test helper
* tag 'libcrypto-tests-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiggers/linux:
lib/crypto: aes-cmac: Use __cleanup() instead of memzero_explicit()
kunit: irq: Unregister on-stack timer and work from debugobjects
kunit: irq: Continue increasing hrtimer interval for longer
lib/crypto: tests: Add KUnit test suite for AES-GCM
lib/crypto: tests: Add KUnit test suite for AES-CCM
lib/crypto: tests: Add aead-test-template.h
lib/crypto: tests: Use per-test-case buffers in hash tests
lib/crypto: tests: Create test-utils.h
lib/crypto: aes: Add FIPS self-tests for GCM and CCM
lib/crypto: aes: Add FIPS self-tests for unauthenticated modes
lib/crypto: fips: Split fips.h into fips-aes.h and fips-sha.h
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git://git.kernel.org/pub/scm/linux/kernel/git/ebiggers/linux
Pull crypto library updates from Eric Biggers:
"Add library APIs for most AES encryption modes that are used in the
kernel (ECB, CBC, CBC-CTS, CTR, XCTR, XTS, GCM, CCM).
These AES modes have many in-kernel users that are currently using the
crypto_skcipher or crypto_aead APIs. These existing APIs are difficult
to use and inefficient. Until now, the lack of proper library support
for these has been the main gap in the crypto library.
This set of changes is the next stage of addressing it:
- Implement the new APIs on top of the existing support for
single-block AES in the library.
- Fully document the new APIs.
- Migrate the only user of the old AES-GCM library API to the new,
more flexible API; then remove the old API and its implementation.
- Wire up the new APIs to the traditional crypto API by adding
crypto_skcipher and crypto_aead algorithms.
This makes the new APIs be covered by the traditional crypto API's
self-tests. It also makes them be already used for real on systems
that don't have architecture-optimized code for these modes.
But most importantly, this is a prerequisite for migrating the
architecture-optimized code for these AES modes (i.e.
arch/*/crypto/aes*) into the library, which as usual will eliminate
a lot of redundant "glue" code.
Note that unlike some of the other algorithms that have been migrated
to the library, e.g. SHA-512, for these AES modes there was too much
to get done in one cycle. Nor did it make sense to handle these modes
one at a time, because they tend to be coupled together or depend on
each other, especially in the architecture-optimized AES code.
Thus, most of the benefits (reductions in lines of code, performance
improvements, etc.) will follow in later cycles when
architecture-optimized code is migrated into the library and users of
crypto_skcipher and crypto_aead are updated to use the new APIs.
The design of the new APIs was informed by writing proof-of-concept
patches for many kernel subsystems currently accessing these same
algorithms via crypto_skcipher or crypto_aead (patches 18-33 of
https://lore.kernel.org/r/20260707053503.209874-1-ebiggers@kernel.org/).
While those patches will be resent for real later, the total diffstat
for them was negative 1905 lines. So clearly the new APIs are quite a
bit easier to use and align better with what users actually need.
Besides the new AES encryption APIs, there are also a few changes for
improved AES-CMAC key and context zeroization"
* tag 'libcrypto-updates-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiggers/linux:
mac80211: fils_aead: Use __cleanup() instead of memzero_explicit()
Bluetooth: SMP: clear the aes_cmac_key when done
smb: clear the aes_cmac_key and aes_cmac_ctx when done
lib/crypto: aes-cmac: Add zeroization functions
lib/crypto: aesgcm: Remove old AES-GCM library
x86/sev: Remove obsolete virtual address check
x86/sev: Use new AES-GCM library
crypto: aes - Add CCM support using library
crypto: aes - Add GCM support using library
crypto: aes - Add XTS support using library
crypto: aes - Add CTR and XCTR support using library
crypto: aes - Add CBC and CBC-CTS support using library
crypto: aes - Add ECB support using library
lib/crypto: aes: Add CCM support
lib/crypto: aes: Add GCM support
lib/crypto: aes: Add XTS support
lib/crypto: aes: Add CTR and XCTR support
lib/crypto: aes: Add CBC and CBC-CTS support
lib/crypto: aes: Add ECB support
crypto: xts - Split out __xts_verify_key() helper
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Pull fscrypt updates from Eric Biggers:
"The main change this cycle is a significant simplification that's been
overdue for a while now: standardizing on a single file contents
encryption implementation in ext4 and f2fs, instead of having two.
Specifically, the original filesystem-layer file contents encryption
implementation is removed, and the blk-crypto implementation is now
used unconditionally. blk-crypto delegates either to inline crypto
hardware or to the CPU via blk-crypto-fallback. The latter is
functionally equivalent to the original filesystem-layer code.
The blk-crypto implementation already existed, but previously it was
used only when the filesystem was mounted with "-o inlinecrypt". Now,
"-o inlinecrypt" just selects whether inline crypto hardware is used.
To allow maintaining that user control over hardware use, the
blk-crypto API is extended with a new flag BLK_CRYPTO_CFG_ALLOW_HW.
Overall, this removes quite a bit of redundant code from ext4, f2fs,
and fs/crypto/. It should make things easier for ongoing filesystem
efforts such as iomap support, large folios, and btrfs encryption
(btrfs had already been planning to use blk-crypto exclusively.)
There are two small behavior changes of note:
- Direct I/O now works on encrypted files even without "-o inlinecrypt",
rather than falling back to buffered I/O. This is effectively a
bugfix, though I'll continue to keep an eye out for any user that
may have been depending on the buffered I/O fallback.
- IV_INO_LBLK_32 policies are no longer supported in certain cases
that didn't make sense and have no known uses.
This has been in linux-next since July 22 with no reported issues. All
encryption xfstests pass on ext4 and f2fs. As usual I've also been
using it on a system with an fscrypt-encrypted home directory. Of
course, the blk-crypto code paths also aren't new and were already
being used on many systems via the inlinecrypt mount option.
In addition to the main change described above, there are a few other
cleanups such as using lock guards for mutexes, improving
documentation, and removing a workaround for outdated gcc versions"
* tag 'fscrypt-for-linus' of git://git.kernel.org/pub/scm/fs/fscrypt/linux: (29 commits)
blk-crypto: Update docs for blk-crypto-fallback motivation
blk-crypto: Remove unused function blk_crypto_config_supported()
fscrypt: Update docs for data path
fscrypt: Remove unused function fscrypt_finalize_bounce_page()
f2fs: Update outdated comment in f2fs_write_begin()
fs: Update outdated comment for SB_INLINECRYPT
fscrypt: Update encryption policy version docs
fscrypt: Replace some variable-size memsets with fixed-size
fscrypt: Add safety checks to non-block-based en/decryption
fscrypt: Merge bio.c and inline_crypt.c into block.c
fscrypt: Remove unused functions and workqueue
fscrypt: Remove fs-layer zeroout code
fscrypt: Remove fscrypt_dio_supported()
fscrypt: Replace calls to fscrypt_inode_uses_inline_crypto()
fs/buffer: Remove fs-layer decryption code
f2fs: Remove fs-layer file contents en/decryption code
ext4: Further de-generalize the bio postprocessing code
ext4: Make ext4_bio_write_folio() return void
ext4: Remove fs-layer file contents en/decryption code
Documentation: fscrypt: Update docs for inlinecrypt
...
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Right now if some LSM such as Smack denies an AF_UNIX socket peer to
receive an SCM_RIGHTS fd, the SCM_RIGHTS fd array will be cut short at
that point, and MSG_CTRUNC is set on return of recvmsg(). This is
highly problematic behaviour, because it leaves the receiver
wondering what happened. As per man page MSG_CTRUNC is supposed to
indicate that the control buffer was sized too short, but suddenly
a permission error might result in the exact same flag being set.
Moreover, the receiver has no chance to determine how many fds got
originally sent and how many were suppressed.[1]
Add a SO_RIGHTS_NOTRUNC option to UNIX sockets to enable more useful
handling of LSM denials when receiving SCM_RIGHTS messages: instead of
truncating the message at the first blocked fd, keep every fd slot
and store the LSM errno in the blocked slot. The socket option is
inherited by the child accept() socket if set on the listen() socket.
[1]: https://github.com/uapi-group/kernel-features#useful-handling-of-lsm-denials-on-scm_rights
Reviewed-by: Christian Brauner (Amutable) <brauner@kernel.org>
Signed-off-by: Jori Koolstra <jkoolstra@xs4all.nl>
Link: https://patch.msgid.link/20260813162818.149248-4-jkoolstra@xs4all.nl
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/vdubeyko/hfs
Pull HFS updates from Viacheslav Dubeyko:
"This contains several fixes in HFS/HFS+ of syzbot reported issues and
HFS/HFS+ fixes of xfstests failures.
- b-tree bitmap corruption check (Aditya Prakash Srivastava)
During b-tree open (hfs_btree_open()), the code verifies that the
allocation map bit for the tree header (node 0) is set. If not, it
indicates a corrupted map record/bitmap and mounts the volume as
read-only (SB_RDONLY) to prevent further damage.
- Validate catalog CNIDs before instantiating inodes (David
Maximiliano Hermitte)
The hfs_cat_find_brec() first resolves a catalog thread record by
CNID and then looks up the corresponding catalog record by
parent/name. On a corrupted filesystem image, the second lookup may
find a record whose CNID does not match the CNID that was
requested. Finally, corrupted catalog records are rejected.
- Validate B-tree record offset table (Jiaming Zhang)
A crafted HFS+ image can contain a corrupted B-tree node. The node
descriptor may contain a record count that does not fit in the
node, and record offsets may be unordered, unaligned, outside the
node, or point into the offset table itself. Validate num_recs
against the node size before walking the record offset table.
Reject record ranges that are unordered, unaligned, outside the
node, or overlapping the offset table. Reject invalid record
indexes before reading their offset entries, and avoid decrementing
an already-zero leaf_count.
- Refactoring of hfsplus_delete_cat() logic (Kyle Zeng).
The hfsplus_delete_cat() is called with str == NULL when the last
open reference to an unlinked HFS+ hardlink backing inode is
closed. In that case, the function finds the catalog thread by CNID
and rebuilds the catalog key from thread.nodeName. A corrupted
image can therefore provide an oversized thread name length and
make hfs_bnode_read() write past the catalog search-key allocation.
Read the CNID record through hfsplus_brec_read_cat(), which bounds
the record read to sizeof(hfsplus_cat_entry) and verifies that a
thread record's size exactly matches nodeName.length.
- Cleanup in KUnit test (Mohammad Shahid)
The kfree() safely handles NULL pointers, so the explicit NULL
check in free_mock_str_env() before calling kfree() is unnecessary.
The rest contain fixes of generic/564 xfstests' test-case failure
for the case of HFS+ file system, syzbot reported issue in
hfs_mdb_commit() and hfs_mdb_close() methods of HFS file system,
and reworking the MDB locking scheme in HFS file system"
* tag 'hfs-v7.3-tag1' of git://git.kernel.org/pub/scm/linux/kernel/git/vdubeyko/hfs:
hfsplus: validate extent record length before writing it back
hfsplus: validate B-tree record offset table
hfs: rework MDB locking scheme
fs: hfsplus: remove redundant NULL check before kfree()
hfs: port HFS+ b-tree bitmap corruption check
hfs: don't re-dirty MDB buffers after a write failure
hfsplus: fix error code when writing beyond volume capacity
hfs: fix error code when writing beyond volume capacity
hfsplus: validate thread record before delete key rebuild
hfs: validate catalog CNIDs before instantiating inodes
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git://git.kernel.org/pub/scm/linux/kernel/git/tnguy/next-queue
Tony Nguyen says:
====================
Introduce iXD driver
Larysa Zaremba says:
This patch series adds the iXD driver, which supports the Intel(R)
Control Plane PCI Function on Intel E2100 and later IPUs and FNICs.
It facilitates a centralized control over multiple IDPF PFs/VFs/SFs
exposed by the same card. The reason for the separation is to be able
to offload the control plane to the host different from where the data
plane is running.
This is the first phase in the release of this driver where we implement the
initialization of the core PCI driver. Subsequent phases will implement
advanced features like usage of idpf ethernet aux device, link management,
NVM update via devlink, switchdev port representors, data and exception path,
flow rule programming, etc.
The first phase entails the following aspects:
1. Additional libie functionalities:
Patches 1-5 introduce additional common library API for drivers to
communicate with the control plane through mailbox communication.
A control queue is a hardware interface which is used by the driver
to interact with other subsystems (like firmware). The library APIs
allow the driver to setup and configure the control queues to send and
receive virtchnl messages. The library has an internal bookkeeping
(XN API) mechanism to keep track of the send messages. It supports both
synchronous as well as asynchronous way of handling the messages. The
library also handles the timeout internally for synchronous messages
using events. This reduces the driver's overhead in handling the timeout
error cases.
The current patch series supports only APIs that are needed for device
initialization. These include APIs in the libie_pci module:
* Allocating/freeing the DMA memory and mapping the MMIO regions for
BAR0, read/write APIs for drivers to access the MMIO memory
and libie_cp module:
* Control queue initialization and configuration
* Transport initialization for bookkeeping
* Blocking and asynchronous mailbox transactions
Once the mailbox is initialized, the drivers can send and receive virtchnl
messages to/from the control plane.
The modules above are not supposed to be linked with the main libie library,
but do share the folder with it.
2. idpf:
Patches 6-11 refactor the idpf driver to use the libie APIs for control
queue configuration, virtchnl transaction, device initialization
and reset and adjust related code accordingly.
3. ixd:
Patches 12-15 add the ixd driver and implement multiple pieces of the
initialization flow as follows:
* Add the ability to load
* A reset is issued to ensure a clean device state, followed by
initialization of the mailbox
* Device capabilities:
As part of initialization, the driver has to determine what the device is
capable of (ex. max queues, vports, etc). This information is obtained from
the firmware and stored by the driver.
* Enable initial support for the devlink interface
* '200GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/tnguy/next-queue:
ixd: add devlink support
ixd: add the core initialization
ixd: add reset checks and initialize the mailbox
ixd: add basic driver framework for Intel(R) Control Plane Function
idpf: print a debug message and bail in case of non-event ctlq message
idpf: make mbx_task queueing and cancelling more consistent
idpf: refactor idpf to use libie control queues
idpf: refactor idpf to use libie_pci APIs
idpf: remove unused code for getting RSS info from device
idpf: remove 'vport_params_reqd' field
libie: add bookkeeping support for control queue messages
libie: add control queue support
libeth: allow to create fill queues without NAPI
libie: add PCI device initialization helpers to libie
virtchnl: move virtchnl and virtchnl2 headers to 'include/linux/net/intel'
====================
Link: https://patch.msgid.link/20260812212532.905873-1-anthony.l.nguyen@intel.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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The data_ack and data_ack32 fields in struct mptcp_ext are no longer used
anywhere. Remove them from the structure and update mptcp_dump_mpext()
trace helper accordingly. Drop the data_ack field from the trace entry
and the corresponding output in TP_printk().
Signed-off-by: Geliang Tang <tanggeliang@kylinos.cn>
Reviewed-by: Matthieu Baerts (NGI0) <matttbe@kernel.org>
Signed-off-by: Matthieu Baerts (NGI0) <matttbe@kernel.org>
Link: https://patch.msgid.link/20260812-net-next-mptcp-misc-feat-7-3-v1-2-1905a818f6cb@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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This list is used to invoke the set .commit and .abort ops for the
rbtree and pipapo to run GC on expired elements and replace the current
datastructure view by the clone. For the rbtree, this also rebuild the
datapath b-search array.
From abort path, remove the set from the update_list if it is already
bound to rule, then the rule itself takes care of releasing the set and
its elements, otherwise, memleak is possible because set ops .abort
only deals with removing the set data structure, not the elements.
This is a preparation patch to call set .commit before processing the
transaction list for the rbtree, no functional changes are intended.
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs
Pull vfs writeback updates from Christian Brauner:
"This makes sync_inode_metadata() and writeback_single_inode() persist
not only the inode but all metadata associated with it.
A new .sync_inode_metadata superblock operation is called from
__writeback_single_inode(). Alongside it a new I_METADATA_WRITEBACK
state flag is added.
Filesystems no longer need their own mmb_fsync() implementations and
can just use simple_fsync(). All metadata is now written for IS_SYNC
and IS_DIRSYNC inodes. Races where several fsyncs raced and mmb_sync()
could return before all buffers were really persisted are fixed since
I_SYNC now serializes properly.
The I_METADATA_WRITEBACK scheme also fixes the case where a
WB_SYNC_NONE writeback landing between write(2) and fsync(2) left
fsync(2) failing to persist the inode. That problem is not specific to
filesystems using the generic metadata bh tracking, and the ones that
do not are left alone.
ext2, udf, bfs, minix, fat and ext4 in nojournal mode have their data
integrity writeout fixed and are converted. affs drops metadata bh
tracking and mmb_fsync() is removed.
A few other fixes came out of this:
- a UAF in mark_buffer_write_io_error()
- missed inode writeback when racing with __writeback_single_inode()
- ext4 allocating the mapping_metadata_bhs struct on demand
- three fat fixes: a lost inode update in do_msdos_rename() with
DIRSYNC, inode buffer write errors not propagating out of
fat_sync_inode_metadata() and directory entries not being
persisted on fsync(2) of the root directory"
* tag 'vfs-7.3-rc1.sync' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs: (24 commits)
writeback: Export __inode_attach_wb()
fat: Fix persisting directory entries on fsync(2) of the root directory
fat: Propagate inode buffer write errors from fat_sync_inode_metadata()
fat: Fix lost inode update in do_msdos_rename() with DIRSYNC
vfs: Remove mmb_fsync()
fat: Replace fat_sync_inode() with sync_inode_metadata()
fat: Fix missed inode writeback during fsync(2)
ext4: Fix data integrity writeout issues in nojournal mode
minix: Fix data integrity writeout issues
bfs: Fix data integrity writeout issues
udf: Fold udf_update_inode() into udf_write_inode()
udf: Use sync_inode_metadata() in udf_evict_inode()
udf: Drop udf_sync_inode()
udf: Use sync_inode_metadata() to writeout IS_SYNC inode
udf: Fix data integrity writeout issues
ext2: Fix data integrity writeout issues
ext2: Avoid unnecessary inode buffer writeback for sync(2)
ext2: Drop __ext2_write_inode()
ext2: Fix lost inode updates for IS_SYNC inodes
fs: Provide way for filesystem to wait for metadata writeback
...
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Pull to receive the __arena argument conversion:
67f1f4a48c24 ("sched_ext: Pass kernel arena pointers to ops_cid callbacks")
a8dc810968af ("sched_ext: Convert sub-cap kfuncs to __arena cmask arguments")
a05c5b5cb5cf ("sched_ext: Convert scx_bpf_cid_override() to __arena array arguments")
along with the bpf-next branch carrying the __arena argument support they
depend on.
Conflict in kernel/sched/ext/ext.c between:
c384ab8a0b13 ("sched_ext: Move the config-off sub-cap kfunc stubs into sub.c")
and:
a8dc810968af ("sched_ext: Convert sub-cap kfuncs to __arena cmask arguments")
which updated the stubs in their old ext.c location. Resolved by keeping
ext.c without the stubs and applying the prototype conversion to the
relocated stubs in sub.c.
Signed-off-by: Tejun Heo <tj@kernel.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs
Pull vfs superblock updates from Christian Brauner:
- Make it possible to share a block device between multiple
filesystems.
erofs can mount read-only blob devices shared between many
superblocks, but because we only tracked a single superblock a
freeze, thaw, removal or sync on such a device was never propagated
to all the superblocks using it, and there was no way to find them.
Add an efficient table to lookup all superblocks using a given block
device.
- A bunch of pre-existing fixes fell out of this work:
A block-device freeze racing a btrfs device change could leave the
whole filesystem stuck frozen. A bdev_freeze() issued by "dmsetup
suspend" or an LVM snapshot resolves that holder to freeze the
filesystem. and bdev_thaw() resolves it again to thaw. A freeze
landing while btrfs is adding, removing or replacing a device freezes
the filesystem. The membership change then drops that link. So the
matching thaw could no longer find the superblock.
Forbid freezing a device for the duration of a membership change,
modelled on deny_write_access()/allow_write_access().
* tag 'vfs-7.3-rc1.super' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs: (24 commits)
super: fix dying superblock warning messages
block: reject block device inodes with i_rdev == 0 in lookup_bdev()
selftests/filesystems: add ustat() coverage
fs: look up the superblock via the device table in user_get_super()
super: make fs_holder_ops private
f2fs: open via dedicated fs bdev helpers
erofs: open via dedicated fs bdev helpers
fs: tolerate per-superblock freeze errors on shared devices
fs: look up superblocks via the device table in fs_holder_ops
ext4: open via dedicated fs bdev helpers
btrfs: open via dedicated fs bdev helpers
xfs: port to fs_bdev_file_open_by_path()
fs: add dedicated block device open helpers for filesystems
fs: maintain a global device-to-superblock table
ocfs2: don't reset s_dev on dismount
ext4: use anonymous devices for KUnit test superblocks
fs, block: move blk_mode_t and fop_flags_t into <linux/types.h>
super: take lock after last reference count
super: convert s_count to refcount_t s_passive
btrfs: deny freezing devices undergoing a replace
...
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Docutils 0.22.4 reports:
Documentation/networking/kapi:107:
../include/net/net_shaper.h:82:
ERROR: Unexpected indentation.
Add the required blank line and correct the list indentation.
Signed-off-by: Karl Mehltretter <kmehltretter@gmail.com>
Reviewed-by: Randy Dunlap <rdunlap@infradead.org>
Tested-by: Randy Dunlap <rdunlap@infradead.org>
Link: https://patch.msgid.link/64f428350ec1450adcd0607f54f30d27a42f129c.1786751700.git.kmehltretter@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs
Pull cachefiles ondemand removal from Christian Brauner:
"This sunsets cachefiles ondemand mode.
It was an effort to make fscache usable as a kernel cache for lazy
pulling. EROFS over fscache was its only in-tree user. fscache has
since become netfslib-oriented while EROFS never acts as a network
filesystem and EROFS over fscache has been removed.
So this cleans up the netfs, fscache and cachefiles side as well"
* tag 'vfs-7.3-rc1.netfs' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs:
cachefiles,netfs: sunset ondemand mode
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git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs
Pull misc vfs updates from Christian Brauner:
"Bigger cleanups:
- The lockref dead-count handling is tidied up.
The open-coded check for a count below zero as the dead marker
relies on information the caller should not have.
- make put_mnt_ns() leave mounts connected. Destroying a mount
namespace disconnected its mounts from their mount points. So a
file descriptor still open on the parent of a mount point could be
used to peek under it.
Locked mounts were already kept connected to prevent exactly that.
But a mount is only locked when its tree is copied across a user
namespace boundary. So a mount namespace set up by a privileged
component had no locked mounts and its mounts were disconnected.
Passing UMOUNT_CONNECTED keeps every mount connected and prevents
that bug.
- vfs_prepare_mode() passes S_IFDIR for directories. I meant to fix
that ago but didn't get to it. So now someone finally did it.
This kills the exception where the mode could be 0 when a directory
was created whereas every other creation operation passed it
explicitly already.
- move long delayed work for ufs, jffs2, hfsplus, hfs and affs from
the per-cpu system_long_wq to the new unbound system_dfl_long_wq.
None of that work relies on per-cpu state and the work item is
enqueued with queue_delayed_work() whose timer is global anyway. So
it may as well benefit from scheduler task placement.
Smaller fixes and cleanups:
- unlock_buffer() and journal_end_buffer_io_sync() use
clear_and_wake_up_bit()
- the pipe page pools are unified into a single per-pipe pool and the
extra wake_up(rd_wait) is limited to EPOLLET consumers
- eventpoll now computes its timer slack lazily in ep_poll()
- shrink_dcache_for_umount() keeps making progress on busy roots
- excess xarray nodes are freed in clear_inode()
- romfs detects hard link cycles
- the user path of nested backing files is fixed
- pidfd holds exec_update_lock around the namespace ioctl
- non-memcg-aware nr_cached_objects is skipped during memcg slab
shrink
- iomap_write_iter() always returns status
- mangle_path() is renamed to seq_mangle_path()
- inode timestamp accessors are annotated
- new regression test for pipe->poll_usage.
- a few documentation, kernel-doc and selftest fixes"
* tag 'vfs-7.3-rc1.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs: (67 commits)
selftests/namespaces: Fix racy pipe handshake in timens and pidns_separate
selftests/epoll: add a regression test for pipe->poll_usage
pipe: only enable the extra wake_up(rd_wait) for EPOLLET consumers
pidfd: hold exec_update_lock around namespace ioctl
fs: fix user path of nested backing files
fs: remove stale inode_insert5() kernel-doc parameter
fs: fix switch/case indentation in sysfs() syscall
fs: document semantics of kstat::{uid,gid} fields
dcache: keep shrink_dcache_for_umount() making progress on busy roots
seq_file: rename mangle_path to seq_mangle_path
nstree: add/fix struct ns_id_req kernel-doc member fields
dcache: use lockref routines for dead count checks
lockref: tidy up dead count handling
initramfs: fix typo in reserve_initrd_mem comment
fs/pipe: unify the page pools into a single per-pipe pool
fs: annotate inode timestamp accessors
eventpoll: compute timer slack lazily in ep_poll()
selftests/filesystems: add mntns cleanup test
put_mnt_ns(): leave mounts connected
affs: Move long delayed work on system_dfl_long_wq
...
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git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs
Pull vfs lookup updates from Christian Brauner:
"This refactors lookup_open() and adds vfs_lookup_open() for nfsd.
mnt_want_write() and parent locking are moved into lookup_open()
itself.
audit_inode_child() is also now called in lookup_open() on failure.
That is the calling convention in vfs_create() and vfs_mkdir(), but
lookup_open() made no such call when atomic_open() should have created
a file and did not. And neither did the regular ->create() path fwiw.
This also contains work to remove the unneeded excl argument from the
->create() inode op"
* tag 'vfs-7.3-rc1.lookup' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs:
fs/namei.c: fix coding style in atomic_open() and lookup_open()
fs/namei.c: fix kerneldoc of atomic_open() and vfs_lookup_open()
fs/namei.c: update stale comments in lookup_open()
Remove excl arg to ->create inode_operation
fs/namei.c: update kerneldoc of atomic_open()
vfs: call audit_inode_child() in lookup_open() on failure
vfs: move create error && negative dentry case in lookup_open() up
VFS: add vfs_lookup_open() for nfsd
VFS: move delegated_inode retry loop into lookup_open()
VFS: move mnt_want_write() and locking into lookup_open()
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git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs
Pull kthread vfs updates from Christian Brauner:
"This stops kernel threads from sharing filesystem state with
userspace. This work is about 3 cycles old and has been in -next
for about that time.
When the kernel boots init_task creates PID 1 and then kthreadd. From
that point every kthread and PID 1 share the same fs_struct. That is
why pivot_root() has to rewrite the fs_struct of all kthreads. The
rewriting exists so that kthreads can use init's filesystem state when
they want to. It also means userspace can move the ground out from
under the kernel.
PID 1 now gets a completely separate fs_struct. All kthreads are
anchored in a private SB_KERNMOUNT instance of nullfs that cannot be
mounted on and cannot be used to follow other mounts. Userspace init
can no longer affect kthread filesystem state and kthreads can no
longer affect userspace fs state without explicit opting in to that.
Path lookup from a kthread now fails by default. It makes it
deliberately hard to offload security sensitive operations into init's
filesystem state from a kthread.
Places that legitimately need to look something up there opt in
through the new scoped_with_init_fs() which temporarily overrides the
caller's fs_struct with init's. usermodehelpers remain the only kernel
tasks that genuinely share init's filesystem state, since they execute
random binaries in the root filesystem (excellent...).
The visible result is that /proc/2/root is a nullfs with an empty
mountinfo while /proc/1/root is the real root"
* tag 'vfs-7.3-rc1.kthread' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs: (26 commits)
initramfs_test: use test init/exit hooks to override init fs
fs: stop rewriting paths for PF_EXITING | PF_DUMPCORE
fs: stop rewriting kthread fs structs
fs: start all kthreads in nullfs
nullfs: make nullfs multi-instance
devtmpfs: create private mount namespace
fs: add umh argument to struct kernel_clone_args
fs: stop sharing fs_struct between init_task and pid 1
af_unix: use scoped_with_init_fs() for coredump socket lookup
initramfs: use scoped_with_init_fs() for rootfs unpacking
pnfs/blocklayout: use scoped_with_init_fs() for SCSI device lookup
ksmbd: use scoped_with_init_fs() for VFS path operations
ksmbd: use scoped_with_init_fs() for filesystem info path lookup
ksmbd: use scoped_with_init_fs() for share path resolution
fs: use scoped_with_init_fs() for kernel_read_file_from_path_initns()
coredump: use scoped_with_init_fs() for coredump path resolution
btrfs: use scoped_with_init_fs() for update_dev_time()
scsi: target: use scoped_with_init_fs() for APTPL metadata
scsi: target: use scoped_with_init_fs() for ALUA metadata
crypto: ccp: use scoped_with_init_fs() for SEV file access
...
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Add minimal context analysis annotations to l2cap_chan_lock/unlock() and
callers required for no warnings.
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Pauli Virtanen <pav@iki.fi>
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
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Add lockdep check for RCU || hdev->lock in hci_conn_hash lookups that
return hci_conn pointer, as dereferencing that without locks can be
TOCTOU issue. It used to be several callsites did not hold appropriate
locks.
The check is equivalent to removing rcu_read_lock() and doing instead
list_for_each_entry_rcu(c, &h->list, list, lockdep_is_held(&hdev->lock))
Although there should not be any remaining callsites without locks,
don't remove the rcu_read_lock() for now, and just add the warning here.
Signed-off-by: Pauli Virtanen <pav@iki.fi>
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
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