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100774 Commits
| Author | SHA1 | Message | Date | |
|---|---|---|---|---|
Linus Torvalds
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1bc8c83af9 |
Merge tag 'lsm-pr-20250527' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/lsm
Pull lsm update from Paul Moore: "One minor LSM framework patch to move the selinux_netlink_send() hook under the CONFIG_SECURITY_NETWORK Kconfig knob" * tag 'lsm-pr-20250527' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/lsm: lsm: Move security_netlink_send to under CONFIG_SECURITY_NETWORK |
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Linus Torvalds
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7af6e3febb |
Merge tag 'integrity-v6.16' of git://git.kernel.org/pub/scm/linux/kernel/git/zohar/linux-integrity
Pull integrity updates from Mimi Zohar:
"Carrying the IMA measurement list across kexec is not a new feature,
but is updated to address a couple of issues:
- Carrying the IMA measurement list across kexec required knowing
apriori all the file measurements between the "kexec load" and
"kexec execute" in order to measure them before the "kexec load".
Any delay between the "kexec load" and "kexec exec" exacerbated the
problem.
- Any file measurements post "kexec load" were not carried across
kexec, resulting in the measurement list being out of sync with the
TPM PCR.
With these changes, the buffer for the IMA measurement list is still
allocated at "kexec load", but copying the IMA measurement list is
deferred to after quiescing the TPM.
Two new kexec critical data records are defined"
* tag 'integrity-v6.16' of git://git.kernel.org/pub/scm/linux/kernel/git/zohar/linux-integrity:
ima: do not copy measurement list to kdump kernel
ima: measure kexec load and exec events as critical data
ima: make the kexec extra memory configurable
ima: verify if the segment size has changed
ima: kexec: move IMA log copy from kexec load to execute
ima: kexec: define functions to copy IMA log at soft boot
ima: kexec: skip IMA segment validation after kexec soft reboot
kexec: define functions to map and unmap segments
ima: define and call ima_alloc_kexec_file_buf()
ima: rename variable the seq_file "file" to "ima_kexec_file"
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Linus Torvalds
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48cfc5791d |
Merge tag 'hardening-v6.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux
Pull hardening updates from Kees Cook: - Update overflow helpers to ease refactoring of on-stack flex array instances (Gustavo A. R. Silva, Kees Cook) - lkdtm: Use SLAB_NO_MERGE instead of constructors (Harry Yoo) - Simplify CONFIG_CC_HAS_COUNTED_BY (Jan Hendrik Farr) - Disable u64 usercopy KUnit test on 32-bit SPARC (Thomas Weißschuh) - Add missed designated initializers now exposed by fixed randstruct (Nathan Chancellor, Kees Cook) - Document compilers versions for __builtin_dynamic_object_size - Remove ARM_SSP_PER_TASK GCC plugin - Fix GCC plugin randstruct, add selftests, and restore COMPILE_TEST builds - Kbuild: induce full rebuilds when dependencies change with GCC plugins, the Clang sanitizer .scl file, or the randstruct seed. - Kbuild: Switch from -Wvla to -Wvla-larger-than=1 - Correct several __nonstring uses for -Wunterminated-string-initialization * tag 'hardening-v6.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux: (23 commits) Revert "hardening: Disable GCC randstruct for COMPILE_TEST" lib/tests: randstruct: Add deep function pointer layout test lib/tests: Add randstruct KUnit test randstruct: gcc-plugin: Remove bogus void member net: qede: Initialize qede_ll_ops with designated initializer scsi: qedf: Use designated initializer for struct qed_fcoe_cb_ops md/bcache: Mark __nonstring look-up table integer-wrap: Force full rebuild when .scl file changes randstruct: Force full rebuild when seed changes gcc-plugins: Force full rebuild when plugins change kbuild: Switch from -Wvla to -Wvla-larger-than=1 hardening: simplify CONFIG_CC_HAS_COUNTED_BY overflow: Fix direct struct member initialization in _DEFINE_FLEX() kunit/overflow: Add tests for STACK_FLEX_ARRAY_SIZE() helper overflow: Add STACK_FLEX_ARRAY_SIZE() helper input/joystick: magellan: Mark __nonstring look-up table const watchdog: exar: Shorten identity name to fit correctly mod_devicetable: Enlarge the maximum platform_device_id name length overflow: Clarify expectations for getting DEFINE_FLEX variable sizes compiler_types: Identify compiler versions for __builtin_dynamic_object_size ... |
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Linus Torvalds
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3b66e6b3c0 |
Merge tag 'cgroup-for-6.16' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup
Pull cgroup updates from Tejun Heo: - cgroup rstat shared the tracking tree across all controllers with the rationale being that a cgroup which is using one resource is likely to be using other resources at the same time (ie. if something is allocating memory, it's probably consuming CPU cycles). However, this turned out to not scale very well especially with memcg using rstat for internal operations which made memcg stat read and flush patterns substantially different from other controllers. JP Kobryn split the rstat tree per controller. - cgroup BPF support was hooking into cgroup init/exit paths directly. Convert them to use a notifier chain instead so that other usages can be added easily. The two of the patches which implement this are mislabeled as belonging to sched_ext instead of cgroup. Sorry. - Relatively minor cpuset updates - Documentation updates * tag 'cgroup-for-6.16' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup: (23 commits) sched_ext: Convert cgroup BPF support to use cgroup_lifetime_notifier sched_ext: Introduce cgroup_lifetime_notifier cgroup: Minor reorganization of cgroup_create() cgroup, docs: cpu controller's interaction with various scheduling policies cgroup, docs: convert space indentation to tab indentation cgroup: avoid per-cpu allocation of size zero rstat cpu locks cgroup, docs: be specific about bandwidth control of rt processes cgroup: document the rstat per-cpu initialization cgroup: helper for checking rstat participation of css cgroup: use subsystem-specific rstat locks to avoid contention cgroup: use separate rstat trees for each subsystem cgroup: compare css to cgroup::self in helper for distingushing css cgroup: warn on rstat usage by early init subsystems cgroup/cpuset: drop useless cpumask_empty() in compute_effective_exclusive_cpumask() cgroup/rstat: Improve cgroup_rstat_push_children() documentation cgroup: fix goto ordering in cgroup_init() cgroup: fix pointer check in css_rstat_init() cgroup/cpuset: Add warnings to catch inconsistency in exclusive CPUs cgroup/cpuset: Fix obsolete comment in cpuset_css_offline() cgroup/cpuset: Always use cpu_active_mask ... |
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Linus Torvalds
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91ad250cbe |
Merge tag 'wq-for-6.16' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq
Pull workqueue updates from Tejun Heo: "Fix statistic update race condition and a couple documentation updates" * tag 'wq-for-6.16' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq: workqueue: fix typo in comment workqueue: Fix race condition in wq->stats incrementation workqueue: Better document teardown for delayed_work |
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Linus Torvalds
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f1975e4765 |
Merge tag 'sysctl-6.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/sysctl/sysctl
Pull sysctl updates from Joel Granados: - Move kern_table members out of kernel/sysctl.c Moved a subset (tracing, panic, signal, stack_tracer and sparc) out of the kern_table array. The goal is for kern_table to only have sysctl elements. All this increases modularity by placing the ctl_tables closer to where they are used while reducing the chances of merge conflicts in kernel/sysctl.c. - Fixed sysctl unit test panic by relocating it to selftests * tag 'sysctl-6.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/sysctl/sysctl: sysctl: Close test ctl_headers with a for loop sysctl: call sysctl tests with a for loop sysctl: Add 0012 to test the u8 range check sysctl: move u8 register test to lib/test_sysctl.c sparc: mv sparc sysctls into their own file under arch/sparc/kernel stack_tracer: move sysctl registration to kernel/trace/trace_stack.c tracing: Move trace sysctls into trace.c signal: Move signal ctl tables into signal.c panic: Move panic ctl tables into panic.c |
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Linus Torvalds
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23022f5456 |
Merge tag 'dma-mapping-6.16-2025-05-26' of git://git.kernel.org/pub/scm/linux/kernel/git/mszyprowski/linux
Pull dma-mapping updates from Marek Szyprowski: "New two step DMA mapping API, which is is a first step to a long path to provide alternatives to scatterlist and to remove hacks, abuses and design mistakes related to scatterlists. This new approach optimizes some calls to DMA-IOMMU layer and cache maintenance by batching them, reduces memory usage as it is no need to store mapped DMA addresses to unmap them, and reduces some function call overhead. It is a combination effort of many people, lead and developed by Christoph Hellwig and Leon Romanovsky" * tag 'dma-mapping-6.16-2025-05-26' of git://git.kernel.org/pub/scm/linux/kernel/git/mszyprowski/linux: docs: core-api: document the IOVA-based API dma-mapping: add a dma_need_unmap helper dma-mapping: Implement link/unlink ranges API iommu/dma: Factor out a iommu_dma_map_swiotlb helper dma-mapping: Provide an interface to allow allocate IOVA iommu: add kernel-doc for iommu_unmap_fast iommu: generalize the batched sync after map interface dma-mapping: move the PCI P2PDMA mapping helpers to pci-p2pdma.h PCI/P2PDMA: Refactor the p2pdma mapping helpers |
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Linus Torvalds
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c89756bcf4 |
Merge tag 'pm-6.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull power management updates from Rafael Wysocki:
"Once again, the changes are dominated by cpufreq updates, but this
time the majority of them are cpufreq core changes, mostly related to
the introduction of policy locking guards and __free() usage, and
fixes related to boost handling.
Still, there is also a significant update of the intel_pstate driver
making it register an energy model when running on a hybrid platform
which is used for enabling energy-aware scheduling (EAS) if the driver
operates in the passive mode (and schedutil is used as the cpufreq
governor for all CPUs which is the passive mode default).
There are some amd-pstate driver updates too, for a good measure,
including the "Requested CPU Min frequency" BIOS option support and
new online/offline callbacks.
In the cpuidle space, the most significant change is the addition of a
C1 demotion on/off sysfs knob to intel_idle which should help some
users to configure their systems more precisely. There is also the
conversion of the PSCI cpuidle driver to a faux device one and there
are two small updates of cpuidle governors.
Device power management is also modified quite a bit, especially the
handling of devices with asynchronous suspend and resume enabled
during system transitions. They are now going to be handled more
asynchronously during suspend transitions and somewhat less
aggressively during resume transitions.
Apart from the above, the operating performance points (OPP) library
is now going to use mutex locking guards and scope-based cleanup
helpers and there is the usual bunch of assorted fixes and code
cleanups.
Specifics:
- Fix potential division-by-zero error in em_compute_costs() (Yaxiong
Tian)
- Fix typos in energy model documentation and example driver code
(Moon Hee Lee, Atul Kumar Pant)
- Rearrange the energy model management code and add a new function
for adjusting a CPU energy model after adjusting the capacity of
the given CPU to it (Rafael Wysocki)
- Refactor cpufreq_online(), add and use cpufreq policy locking
guards, use __free() in policy reference counting, and clean up
core cpufreq code on top of that (Rafael Wysocki)
- Fix boost handling on CPU suspend/resume and sysfs updates (Viresh
Kumar)
- Fix des_perf clamping with max_perf in amd_pstate_update()
(Dhananjay Ugwekar)
- Add offline, online and suspend callbacks to the amd-pstate driver,
rename and use the existing amd_pstate_epp callbacks in it
(Dhananjay Ugwekar)
- Add support for the "Requested CPU Min frequency" BIOS option to
the amd-pstate driver (Dhananjay Ugwekar)
- Reset amd-pstate driver mode after running selftests (Swapnil
Sapkal)
- Avoid shadowing ret in amd_pstate_ut_check_driver() (Nathan
Chancellor)
- Add helper for governor checks to the schedutil cpufreq governor
and move cpufreq-specific EAS checks to cpufreq (Rafael Wysocki)
- Populate the cpu_capacity sysfs entries from the intel_pstate
driver after registering asym capacity support (Ricardo Neri)
- Add support for enabling Energy-aware scheduling (EAS) to the
intel_pstate driver when operating in the passive mode on a hybrid
platform (Rafael Wysocki)
- Drop redundant cpus_read_lock() from store_local_boost() in the
cpufreq core (Seyediman Seyedarab)
- Replace sscanf() with kstrtouint() in the cpufreq code and use a
symbol instead of a raw number in it (Bowen Yu)
- Add support for autonomous CPU performance state selection to the
CPPC cpufreq driver (Lifeng Zheng)
- OPP: Add dev_pm_opp_set_level() (Praveen Talari)
- Introduce scope-based cleanup headers and mutex locking guards in
OPP core (Viresh Kumar)
- Switch OPP to use kmemdup_array() (Zhang Enpei)
- Optimize bucket assignment when next_timer_ns equals KTIME_MAX in
the menu cpuidle governor (Zhongqiu Han)
- Convert the cpuidle PSCI driver to a faux device one (Sudeep Holla)
- Add C1 demotion on/off sysfs knob to the intel_idle driver (Artem
Bityutskiy)
- Fix typos in two comments in the teo cpuidle governor (Atul Kumar
Pant)
- Fix denying of auto suspend in pm_suspend_timer_fn() (Charan Teja
Kalla)
- Move debug runtime PM attributes to runtime_attrs[] (Rafael
Wysocki)
- Add new devm_ functions for enabling runtime PM and runtime PM
reference counting (Bence Csókás)
- Remove size arguments from strscpy() calls in the hibernation core
code (Thorsten Blum)
- Adjust the handling of devices with asynchronous suspend enabled
during system suspend and resume to start resuming them immediately
after resuming their parents and to start suspending such a device
immediately after suspending its first child (Rafael Wysocki)
- Adjust messages printed during tasks freezing to avoid using
pr_cont() (Andrew Sayers, Paul Menzel)
- Clean up unnecessary usage of !! in pm_print_times_init() (Zihuan
Zhang)
- Add missing wakeup source attribute relax_count to sysfs and remove
the space character at the end ofi the string produced by
pm_show_wakelocks() (Zijun Hu)
- Add configurable pm_test delay for hibernation (Zihuan Zhang)
- Disable asynchronous suspend in ucsi_ccg_probe() to prevent the
cypd4226 device on Tegra boards from suspending prematurely (Jon
Hunter)
- Unbreak printing PM debug messages during hibernation and clean up
some related code (Rafael Wysocki)
- Add a systemd service to run cpupower and change cpupower binding's
Makefile to use -lcpupower (John B. Wyatt IV, Francesco Poli)"
* tag 'pm-6.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (72 commits)
cpufreq: CPPC: Add support for autonomous selection
cpufreq: Update sscanf() to kstrtouint()
cpufreq: Replace magic number
OPP: switch to use kmemdup_array()
PM: freezer: Rewrite restarting tasks log to remove stray *done.*
PM: runtime: fix denying of auto suspend in pm_suspend_timer_fn()
cpufreq: drop redundant cpus_read_lock() from store_local_boost()
cpupower: do not install files to /etc/default/
cpupower: do not call systemctl at install time
cpupower: do not write DESTDIR to cpupower.service
PM: sleep: Introduce pm_sleep_transition_in_progress()
cpufreq/amd-pstate: Avoid shadowing ret in amd_pstate_ut_check_driver()
cpufreq: intel_pstate: Document hybrid processor support
cpufreq: intel_pstate: EAS: Increase cost for CPUs using L3 cache
cpufreq: intel_pstate: EAS support for hybrid platforms
PM: EM: Introduce em_adjust_cpu_capacity()
PM: EM: Move CPU capacity check to em_adjust_new_capacity()
PM: EM: Documentation: Fix typos in example driver code
cpufreq: Drop policy locking from cpufreq_policy_is_good_for_eas()
PM: sleep: Introduce pm_suspend_in_progress()
...
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Linus Torvalds
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3702a515ed |
Merge tag 'acpi-6.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull ACPI updates from Rafael Wysocki:
"The most significant part of these changes is an ACPICA update
covering two upstream ACPICA releases, 20241212 and 20250404, that
have not been included into the kernel code base yet.
Among other things, it adds definitions needed to address GCC 15's
-Wunterminated-string-initialization warnings, adds support for three
new tables (MRRM, ERDT, RIMT), extends support for two tables (RAS2,
DMAR), and fixes some issues.
On top of the above, there is a new parser for the MRRM table, more
changes related to GCC 15's -Wunterminated-string-initialization
warnings, a CPPC library update including functions related to
autonomous CPU performance state selection, a couple of new quirks,
some assorted fixes and some code cleanups.
Specifics:
- Fix two ACPICA SLAB cache leaks (Seunghun Han)
- Add EINJv2 get error type action and define Error Injection Actions
in hex values to avoid inconsistencies between the specification
and the code (Zaid Alali)
- Fix typo in comments for SRAT structures (Adam Lackorzynski)
- Prevent possible loss of data in ACPICA because of u32 to u8
conversions (Saket Dumbre)
- Fix reading FFixedHW operation regions in ACPICA (Daniil Tatianin)
- Add support for printing AML arguments when the ACPICA debug level
is ACPI_LV_TRACE_POINT (Mario Limonciello)
- Drop a stale comment about the file content from actbl2.h (Sudeep
Holla)
- Apply pack(1) to union aml_resource (Tamir Duberstein)
- Fix overflow check in the ACPICA version of vsnprintf() (gldrk)
- Interpret SIDP structures in DMAR added revision 3.4 of the VT-d
specification (Alexey Neyman)
- Add typedef and other definitions related to MRRM to ACPICA (Tony
Luck)
- Add definitions for RIMT to ACPICA (Sunil V L)
- Fix spelling mistake "Incremement" -> "Increment" in the ACPICA
utilities code (Colin Ian King)
- Add typedef and other definitions for ERDT to ACPICA (Tony Luck)
- Introduce ACPI_NONSTRING and use it (Kees Cook, Ahmed Salem)
- Rename structure and field names of the RAS2 table in actbl2.h
(Shiju Jose)
- Fix up whitespace in acpica/utcache.c (Zhe Qiao)
- Avoid sequence overread in a call to strncmp() in
ap_get_table_length() and replace strncpy() with memcpy() in ACPICA
in some places (Ahmed Salem)
- Update copyright year in all ACPICA files (Saket Dumbre)
- Add __nonstring annotations for unterminated strings in the static
ACPI tables parsing code (Kees Cook)
- Add support for parsing the MRRM ACPI table and sysfs files to
describe memory regions listed in it (Tony Luck, Anil
Keshavamurthy)
- Remove an (explicitly) unused header file include from the VIOT
ACPI table parser file (Andy Shevchenko)
- Improve logging around acpi_initialize_tables() (Bartosz
Szczepanek)
- Clean up the initialization of CPU data structures in the ACPI
processor driver (Zhang Rui)
- Remove an obsolete comment regarding the C-states handling in the
ACPI processor driver (Giovanni Gherdovich)
- Simplify PCC shared memory region handling (Sudeep Holla)
- Rework and extend functions for reading CPPC register values and
for updating CPPC registers (Lifeng Zheng)
- Add three functions related to autonomous CPU performance state
selection to the CPPC library (Lifeng Zheng)
- Turn the acpi_pci_root_remap_iospace() fwnode_handle parameter into
a const pointer (Pei Xiao)
- Round battery capacity percengate in the ACPI battery driver to the
closest integer to avoid user confusion (shitao)
- Make the ACPI battery driver report the current as a negative
number to the power supply framework when the battery is
discharging as documented (Peter Marheine)
- Add TUXEDO InfinityBook Pro AMD Gen9 to the acpi_ec_no_wakeup[]
list to prevent spurious wakeups from suspend-to-idle (Werner
Sembach)
- Convert the APEI EINJ driver to a faux device one (Sudeep Holla,
Jon Hunter)
- Remove redundant calls to einj_get_available_error_type() from the
APEI EINJ driver (Zaid Alali)
- Fix a typo for MECHREVO in irq1_edge_low_force_override[] (Mingcong
Bai)
- Add an LPS0 check() callback to the AMD pinctrl driver and fix up
config symbol dependencies in it (Mario Limonciello, Rafael
Wysocki)
- Avoid initializing the ACPI platform profile driver on non-ACPI
platforms (Alexandre Ghiti)
- Document that references to ACPI data (non-device) nodes should use
string-only references in hierarchical data node packages (Sakari
Ailus)
- Fail the ACPI bus registration if acpi_kobj registration fails
(Armin Wolf)"
* tag 'acpi-6.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (65 commits)
ACPI: MRRM: Fix default max memory region
ACPI: bus: Bail out if acpi_kobj registration fails
ACPI: platform_profile: Avoid initializing on non-ACPI platforms
pinctrl: amd: Fix hibernation support with CONFIG_SUSPEND unset
ACPI: tables: Improve logging around acpi_initialize_tables()
ACPI: VIOT: Remove (explicitly) unused header
ACPI: Add documentation for exposing MRRM data
ACPI: MRRM: Add /sys files to describe memory ranges
ACPI: MRRM: Minimal parse of ACPI MRRM table
ACPICA: Update copyright year
ACPICA: Logfile: Changes for version 20250404
ACPICA: Replace strncpy() with memcpy()
ACPICA: Apply ACPI_NONSTRING in more places
ACPICA: Avoid sequence overread in call to strncmp()
ACPICA: Adjust the position of code lines
ACPICA: actbl2.h: ACPI 6.5: RAS2: Rename structure and field names of the RAS2 table
ACPICA: Apply ACPI_NONSTRING
ACPICA: Introduce ACPI_NONSTRING
ACPICA: actbl2.h: ERDT: Add typedef and other definitions
ACPICA: infrastructure: Add new DMT_BUF types and shorten a long name
...
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Linus Torvalds
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35a8b02e07 |
Merge tag 'mmc-v6.16' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc
Pull MMC updates from Ulf Hansson: "MMC core: - Scan the eMMC boot areas for partition table - Clarify purpose of mmc_can* functions by renaming them to mmc_card_can* - Clarify helpers for host capabilities by renaming them to mmc_host_can* - Add support for graceful host removal for SD and eMMC - Further avoid re-storing power to the eMMC before a shutdown - Add quirk to disable DDR50 tuning and use it for some Swissbit SD-cards MMC host: - mtk-sd: Add support for Dimensity 1200 MT6893 - mtk-sd: Fix condition to enable single burst type - mtk-sd: Optimize several code-paths by aggregating register-writes - renesas_sdhi: Add support for the Renesas RZ/V2N variant - sdhci-msm: Add support for the SM7150 variant - sdhci-esdhc-imx: Re-factor the system PM logic - sdhci-esdhc-imx: Lots of improvements around the tuning support - sdhci-of-arasan: Add support for the Renesas RZ/N1D variant - sdhci-of-dwcmhsc: Add Sophgo SG2044 support - sdhci-of-esdhc: Add support for the LS1021a variant - sdhci-of-k1: Add new driver to support for SpacemiT K1 controller - sdhci-pic32: Convert microchip,sdhci-pic32 DT doc to json schema - wmt-sdmmc: Convert DT doc to json schema" * tag 'mmc-v6.16' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc: (59 commits) dt-bindings: mmc: sdhci-of-dwcmhsc: Allow use of a power-domain mmc: sdhci-esdhc-imx: fix few build warnings mmc: bcm2835: Use str_read_write() helper mmc: host: sdhci-esdhc-imx: refactor the system PM logic mmc: sdhci: export APIs for sdhci irq wakeup mmc: sdhci-of-k1: add support for SpacemiT K1 SoC dt-bindings: mmc: spacemit,sdhci: add support for K1 SoC mmc: core: Scan the eMMC boot areas for partition table dt-binding: mmc: microchip,sdhci-pic32: convert text based binding to json schema mmc: rename mmc_boot_partition_access() to mmc_host_can_access_boot() mmc: rename mmc_host_uhs() to mmc_host_can_uhs() mmc: rename mmc_host_done_complete() to mmc_host_can_done_complete() mmc: rename mmc_host_cmd23() to mmc_host_can_cmd23() mmc: sdhci-esdhc-imx: fix defined but not used warnings dt-bindings: mmc: vt8500-sdmmc: Convert to YAML dt-bindings: mmc: sdhci-msm: Add the SM7150 compatible dt-bindings: mmc: fsl,esdhc: add compatible string fsl,ls1021a-esdhc mmc: cavium-thunderx: Use non-hybrid PCI devres API dt-bindings: mmc: mtk-sd: Add support for Dimensity 1200 MT6893 dt-bindings: mmc: sdhci-of-dwcmhsc: Add Sophgo SG2044 support ... |
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Linus Torvalds
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418da6ee1e |
Merge tag 'pmdomain-v6.16' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/linux-pm
Pull pmdomain updates from Ulf Hansson: "pmdomain core: - Add residency reflection for domain-idlestates to debugfs - Add genpd helper to correct the usage/rejected counters pmdomain providers: - mediatek: Add support for Dimensity 1200 MT6893 - qcom: Add support for SM4450 power domains - rockchip: Add support for RK3562 SoC - sunxi: Add support for Allwinner H6/H616 PRCM PPU - ti: Fix STANDBY handling of OMAP2+ PER power domain cpuidle-psci: - Correct the domain-idlestate statistics in debugfs" * tag 'pmdomain-v6.16' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/linux-pm: (23 commits) pmdomain: ti: Fix STANDBY handling of PER power domain pmdomain: amlogic: Constify some structures pmdomain: core: Use genpd->opp_table to simplify error/remove path pmdomain: core: Simplify return statement in genpd_power_off() pmdomain: core: Convert genpd_power_off() to void pmdomain: core: Convert to device_awake_path() pmdomain: mediatek: Add error messages for missing regmaps pmdomain: arm: Do not enable by default during compile testing pmdomain: qcom: rpmhpd: Add SM4450 power domains dt-bindings: power: qcom,rpmpd: Add SM4450 compatible pmdomain: sunxi: add H6 PRCM PPU driver dt-bindings: power: Add Allwinner H6/H616 PRCM PPU pmdomain: bcm: bcm2835-power: Use devm_clk_get_optional pmdomain: rockchip: Add support for RK3562 SoC dt-bindings: power: rockchip: Add support for RK3562 SoC pmdomain: mediatek: Add support for Dimensity 1200 MT6893 pmdomain: mediatek: Bump maximum bus protect data array elements dt-bindings: power: mediatek: Support Dimensity 1200 MT6893 MTCMOS pmdomain: core: Reset genpd->states to avoid freeing invalid data pmdomain: core: Add residency reflection for domain-idlestates to debugfs ... |
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Linus Torvalds
|
c7c1863536 |
Merge tag 'for-v6.16' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply
Pull power supply and reset updates from Sebastian Reichel: "Power-supply core: - support charge_types in extensions Power-supply drivers: - new driver for Pegatron Chagall battery - new driver for Maxim MAX8971 charger - new driver for Huawei Matebook E Go - bq27xxx: retry failed I2C transmissions - bq24190: add BQ24193 support - misc small cleanups and fixes Reset drivers: - new driver for Toradex SMARC Embedded Controller - reboot-mode: add support for modes containing / in DT - atmel,at91sam9260-reset: support sama7d65 - syscon-reboot: add Google GS101 support - misc small cleanups and fixes" * tag 'for-v6.16' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply: (28 commits) power: supply: rt9471: Simplify definition of some struct linear_range power: supply: max77976: add EXTCON dependency power: supply: Add support for Maxim MAX8971 charger dt-bindings: power: supply: Document Maxim MAX8971 charger power: supply: max17040: adjust thermal channel scaling power: reset: syscon-reboot: add gs101-specific reset dt-bindings: reset: syscon-reboot: add google,gs101-reboot power: supply: add Huawei Matebook E Go psy driver power: supply: Add driver for Pegatron Chagall battery dt-bindings: power: supply: Document Pegatron Chagall fuel gauge dt-bindings: vendor-prefixes: add prefix for Pegatron Corporation power: supply: cros_charge-control: Avoid -Wflex-array-member-not-at-end warning power: reset: add Toradex Embedded Controller dt-bindings: power: reset: add toradex,smarc-ec power: supply: support charge_types in extensions power: supply: max77705: Fix workqueue error handling in probe power: supply: wm831x: Constify struct chg_map and some arrays power: bq24190: Add BQ24193 support dt-bindings: power: supply: bq24190: Add BQ24193 compatible power: supply: sysfs: Remove duplicate NUL termination ... |
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Linus Torvalds
|
5722a6cecf |
Merge tag 'spi-v6.16' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi
Pull spi updates from Mark Brown:
"The bulk of the changes in this release are driver work, as well as
new device support we have some important work on performance over
several drivers, and big overhauls for maintainability on a couple
too. Highlights include:
- Big cleanups of the sh-msiof driver from Geert Uytterhoeven, and of
the NXP FSPI driver from Haibo Chen
- Performance improvements for the AXI SPI engine
- Support for writes to memory mapped flashes on Renesas devices
- Integrated DMA support for Tegra210 QSPI, used by the Tegra234
- DMA support for Amlogic SPI controllers
- Support for AMD HID2, Qualcomm IPQ5018, Renesas RZ/G3E, Rockchip
RK3528 and Samsung Exynos Autov920
An update to fix some issues with the Atmel QSPI driver runtime PM
pulled in a new API from the PM core, and the Renesas memory mapped
write changes pull in some code that's shared in drivers/memory"
* tag 'spi-v6.16' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi: (90 commits)
spi: spi-qpic-snand: return early on error from qcom_spi_io_op()
spi: loopback-test: fix up const pointer issue in rx_ranges_cmp()
spi: gpio: fix const issue in spi_to_spi_gpio()
spi: spi-qpic-snand: remove superfluous parameters of qcom_spi_check_error()
dt-bindings: spi: samsung: add exynosautov920-spi compatible
spi: spi-qpic-snand: reuse qcom_spi_check_raw_flash_errors()
spi: dt-bindings: Add rk3528-spi compatible
spi: spi_amd: Update Kconfig dependencies
spi: spi_amd: Add HIDDMA basic write support
spi: spi_amd: Remove read{q,b} usage on DMA buffer
spi: sh-msiof: Move register definitions to <linux/spi/sh_msiof.h>
spi: sh-msiof: Document frame start sync pulse mode
spi: sh-msiof: Double maximum DMA transfer size using two groups
spi: sh-msiof: Simplify BRG's Division Ratio
spi: sh-msiof: Increase TX FIFO size for R-Car V4H/V4M
spi: sh-msiof: Correct RX FIFO size for R-Car Gen3
spi: sh-msiof: Correct RX FIFO size for R-Car Gen2
spi: sh-msiof: Add core support for dual-group transfers
spi: sh-msiof: Correct SIMDR2_GRPMASK
spi: sh-msiof: SIFCTR bitfield conversion
...
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Linus Torvalds
|
350d9ab736 |
Merge tag 'regulator-v6.16' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator
Pull regulator updates from Mark Brown: "This is a very quiet release, there was no work on the core and a good chunk of the updates were the result of conversions to use newer GPIO APIs. We did gain support for Analog ADP5055 and TI TPS65214 devices, and there's a new restart handler for the PCA9450 which allows devices using it to be properly power cycled on reboot, but otherwise it's minor fixes and API updates" * tag 'regulator-v6.16' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator: (24 commits) regulator: qcom_spmi: Constify struct spmi_voltage_range regulator: max8952: Correct Samsung "Electronics" spelling in copyright headers regulator: dt-bindings: mt6357: Drop fixed compatible requirement regulator: gpio: Use dev_err_probe regulator: pca9450: Add restart handler regulator: da9121: Fix Wvoid-pointer-to-enum-cast warning regulator: tps65219: Add TI TPS65214 Regulator Support regulator: tps65219: Add support for TPS65215 Regulator IRQs regulator: tps65219: Add support for TPS65215 regulator resources regulator: tps65219: Update struct names regulator: pf9453: convert to use maple tree register cache regulator: max20086: Change enable gpio to optional regulator: max20086: Fix MAX200086 chip id regulator: adp5055: Remove unneeded semicolon regulator: adp5055: remove duplicate device table regulator: adp5055: Add driver for adp5055 regulator: dt-bindings: adi,adp5055-regulator: Add adp5055 support regulator: don't compare raw GPIO descriptor pointers regulator: rpi-panel-attiny: use new GPIO line value setter callbacks regulator: rpi-panel-attiny: use lock guards for the state mutex ... |
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Linus Torvalds
|
c971f11dbf |
Merge tag 'regmap-v6.16' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap
Pull regmap updates from Mark Brown: "This release we have one new feature, support for chips that report edge interrupts but don't provide distinct readback of that status per line, plus a few cleanups" * tag 'regmap-v6.16' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap: regmap: irq: Add support for chips without separate IRQ status regmap-irq: Use dedicated interrupt wake setters regmap: Move selecting for REGMAP_MDIO and REGMAP_IRQ regcache: Use sort()'s default swap() implementation |
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Linus Torvalds
|
aacc73ceeb |
Merge tag 'gpio-updates-for-v6.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux
Pull gpio updates from Bartosz Golaszewski:
"We have three new drivers, some refactoring in the GPIO core, lots of
various changes across many drivers, new configfs interface for the
virtual gpio-aggregator module and DT-bindings updates.
The treewide conversion of GPIO drivers to using the new value setter
callbacks is ongoing with another round of GPIO drivers updated. You
will also see these commits coming in from other subsystems as with
the relevant changes merged into mainline last cycle, I've started
converting GPIO providers located elsewhere than drivers/gpio/.
GPIO core:
- use more lock guards where applicable
- refactor GPIO ACPI code and shrink it in the process by 8%
- move GPIO ACPI quirks into a separate file
- remove unneeded #ifdef
- convert GPIO devres helpers to using devm_add_action() where
applicable which shrinks and simplifies the code
- refactor GPIO descriptor validation in GPIO consumer interfaces
- don't allow setting values on input lines in the GPIO core which
will take off the burden from GPIO drivers of checking this down
the line
- provide gpiod_is_equal() as a way of safely comparing two GPIO
descriptors (the only current user is in regulator core)
New drivers:
- add the GPIO module for the max77759 multifunction device
- add the GPIO driver for the VeriSilicon BLZP1600 GPIO controller
- add the GPIO driver for the Spacemit K1 SoC
Driver improvements:
- convert more drivers to using the new GPIO line value setter
callbacks
- convert more drivers to making the irq_chip immutable as is
recommended by the interrupt subsystem
- extend build testing coverage by enabling more modules to be built
with COMPILE_TEST=y
- extend the gpio-aggregator module with a configfs interface that
makes the setup easier for user-space than the existing
driver-level sysfs attributes and also adds more advanced
configuration features (such as referring to aggregated lines by
their original names or modifying their names as exposed by the
aggregated chip)
- add a missing mutex_destroy() in gpio-imx-scu
- add an OF polarity quirk for s5m8767
- allow building gpio-vf610 as a loadable module
- make gpio-mxc not hardcode its GPIO base number with GPIO SYSFS
interface disabled (another small step towards getting rid of the
global GPIO numberspace)
- add support for level-triggered interrupts to gpio-pca953x
- don't double-check the ngpios property in gpio-ds4520 as GPIO core
already does it
- don't double-check the number of GPIOs in gpio-imx-scu as GPIO core
already does it
- remove unused callbacks from gpio-max3191x
DT bindings:
- add device-tree bindings for max77759, spacemit,k1 and blzp1600
(new drivers added this cycle)
- document more properties for gpio-vf610 and gpio-tegra186
- document a new pca95xx variant
- fix style of examples in several GPIO DT-binding documents
Misc:
- TODO list updates"
* tag 'gpio-updates-for-v6.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux: (123 commits)
gpio: timberdale: select GPIOLIB_IRQCHIP
gpio: lpc18xx: select GPIOLIB_IRQCHIP
gpio: grgpio: select GPIOLIB_IRQCHIP
gpio: bcm-kona: select GPIOLIB_IRQCHIP
dt-bindings: gpio: vf610: add ngpios and gpio-reserved-ranges
gpio: davinci: select GPIOLIB_IRQCHIP
gpiolib-acpi: Update file references in the Documentation and MAINTAINERS
gpiolib: acpi: Move quirks to a separate file
gpiolib: acpi: Add acpi_gpio_need_run_edge_events_on_boot() getter
gpiolib: acpi: Handle deferred list via new API
gpiolib: acpi: Make sure we fill struct acpi_gpio_info
gpiolib: acpi: Switch to use enum in acpi_gpio_in_ignore_list()
gpiolib: acpi: Use temporary variable for struct acpi_gpio_info
gpiolib: remove unneeded #ifdef
gpio: mpc8xxx: select GPIOLIB_IRQCHIP
gpio: pxa: select GPIOLIB_IRQCHIP
gpio: pxa: Make irq_chip immutable
gpio: timberdale: Make irq_chip immutable
gpio: xgene-sb: Make irq_chip immutable
gpio: davinci: Make irq_chip immutable
...
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Linus Torvalds
|
a9e6060bb2 |
Merge tag 'sound-6.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull sound updates from Takashi Iwai:
"We've received a lot of activities in this cycle, mostly about leaf
driver codes rather than the core part, but with a good mixture of
code cleanups and new driver additions. Below are some highlights:
ASoC:
- Support for automatically enumerating DAIs from standards
conforming SoundWire SDCA devices; not much used as of this
writing, rather for future implementations
- Conversion of quite a few drivers to newer GPIO APIs
- Continued cleanups and helper usages in allover places
- Support for a wider range of Intel AVS platforms
- Support for AMD ACP 7.x platforms, Cirrus Logic CS35L63 and CS48L32
Everest Semiconductor ES8375 and ES8389, Longsoon-1 AC'97
controllers, nVidia Tegra264, Richtek ALC203 and RT9123 and
Rockchip SAI controllers
HD-audio:
- Lots of cleanups of TAS2781 codec drivers
- A new HD-audio control bound via ACPI for Nvidia
- Support for Tegra264, Intel WCL, usual new codec quirks
USB-audio:
- Fix a race at removal of MIDI device
- Pioneer DJM-V10 support, Scarlett2 driver cleanups
Misc:
- Cleanups of deprecated PCI functions
- Removal of unused / dead function codes"
* tag 'sound-6.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (364 commits)
firmware: cs_dsp: Fix OOB memory read access in KUnit test
ASoC: codecs: add support for ES8375
ASoC: dt-bindings: Add Everest ES8375 audio CODEC
ALSA: hda: acpi: Make driver's match data const static
ALSA: hda: acpi: Use SYSTEM_SLEEP_PM_OPS()
ALSA: atmel: Replace deprecated strcpy() with strscpy()
ALSA: core: fix up bus match const issues.
ASoC: wm_adsp: Make cirrus_dir const
ASoC: tegra: Tegra264 support in isomgr_bw
ASoC: tegra: AHUB: Add Tegra264 support
ASoC: tegra: ADX: Add Tegra264 support
ASoC: tegra: AMX: Add Tegra264 support
ASoC: tegra: I2S: Add Tegra264 support
ASoC: tegra: Update PLL rate for Tegra264
ASoC: tegra: ASRC: Update ARAM address
ASoC: tegra: ADMAIF: Add Tegra264 support
ASoC: tegra: CIF: Add Tegra264 support
dt-bindings: ASoC: Document Tegra264 APE support
dt-bindings: ASoC: admaif: Add missing properties
ASoC: dt-bindings: audio-graph-card2: reference audio-graph routing property
...
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Linus Torvalds
|
11147c16a6 |
Merge tag 'pwm/for-6.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/ukleinek/linux
Pull pwm updates from Uwe Kleine-König: "This time around the pwm changes for the next release contain three new drivers (loongson, mc33xs2410 and rzg2l-gpt) and the usual collection of cleanups in both the core and drivers, support for new variants in existing drivers, conversion of dt bindings to yaml and documentation updates. Thanks for contributions and reviews go to Alexey Charkov, AngeloGioacchino Del Regno, Bartosz Golaszewski, Biju Das, Binbin Zhou, Dan Carpenter, Dimitri Fedrau, Geert Uytterhoeven, George Stark, Huacai Chen, Juxin Gao, Krzysztof Kozlowski, Kuninori Morimoto, Laurent Pinchart, Neil Armstrong, Nuno Sá, Rob Herring, and Trevor Gamblin" * tag 'pwm/for-6.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/ukleinek/linux: (39 commits) dt-bindings: timer: renesas,tpu: remove binding documentation pwm: adp5585: make sure to include mod_devicetable.h pwm: Tidyup PWM menu for Renesas pwm: Restore alphabetic ordering in Kconfig and Makefile pwm: Formally describe the procedure used to pick a hardware waveform setting pwm: Let pwm_set_waveform_might_sleep() return 0 instead of 1 after rounding up pwm: Let pwm_set_waveform_might_sleep() fail for exact but impossible requests ARM: shmobile: defconfig: Enable more support for RZN1D-DB/EB arm64: defconfig: Add Renesas MSIOF sound support arm64: defconfig: Enable Renesas RZ/G2L GPT config pwm: add support for NXPs high-side switch MC33XS2410 dt-bindings: pwm: add support for MC33XS2410 pwm: rzg2l-gpt: Accept requests for too high period length dt-bindings: pwm: vt8500-pwm: Convert to YAML dt-bindings: pwm: mediatek,pwm-disp: Add compatible for MT6893 pwm: Fix various formatting issues in kernel-doc pwm: Add support for RZ/G2L GPT dt-bindings: pwm: Add RZ/G2L GPT binding pwm: Better document return value of pwm_round_waveform_might_sleep() pwm: loongson: Fix an error code in probe() ... |
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Linus Torvalds
|
97851c6016 |
Merge tag 'ratelimit.2025.05.25a' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu
Pull rate-limit updates from Paul McKenney: "lib/ratelimit: Reduce false-positive and silent misses: - Reduce open-coded use of ratelimit_state structure fields. - Convert the ->missed field to atomic_t. - Count misses that are due to lock contention. - Eliminate jiffies=0 special case. - Reduce ___ratelimit() false-positive rate limiting (Petr Mladek). - Allow zero ->burst to hard-disable rate limiting. - Optimize away atomic operations when a miss is guaranteed. - Warn if ->interval or ->burst are negative (Petr Mladek). - Simplify the resulting code. A smoke test and stress test have been created, but they are not yet ready for mainline. With luck, we will offer them for the v6.17 merge window" * tag 'ratelimit.2025.05.25a' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu: ratelimit: Drop redundant accesses to burst ratelimit: Use nolock_ret restructuring to collapse common case code ratelimit: Use nolock_ret label to collapse lock-failure code ratelimit: Use nolock_ret label to save a couple of lines of code ratelimit: Simplify common-case exit path ratelimit: Warn if ->interval or ->burst are negative ratelimit: Avoid atomic decrement under lock if already rate-limited ratelimit: Avoid atomic decrement if already rate-limited ratelimit: Don't flush misses counter if RATELIMIT_MSG_ON_RELEASE ratelimit: Force re-initialization when rate-limiting re-enabled ratelimit: Allow zero ->burst to disable ratelimiting ratelimit: Reduce ___ratelimit() false-positive rate limiting ratelimit: Avoid jiffies=0 special case ratelimit: Count misses due to lock contention ratelimit: Convert the ->missed field to atomic_t drm/amd/pm: Avoid open-coded use of ratelimit_state structure's internals drm/i915: Avoid open-coded use of ratelimit_state structure's ->missed field random: Avoid open-coded use of ratelimit_state structure's ->missed field ratelimit: Create functions to handle ratelimit_state internals |
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Linus Torvalds
|
dd3922cf9d |
Merge tag 'x86_sev_for_v6.16_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull AMD SEV update from Borislav Petkov: "Add a virtual TPM driver glue which allows a guest kernel to talk to a TPM device emulated by a Secure VM Service Module (SVSM) - a helper module of sorts which runs at a different privilege level in the SEV-SNP VM stack. The intent being that a TPM device is emulated by a trusted entity and not by the untrusted host which is the default assumption in the confidential computing scenarios" * tag 'x86_sev_for_v6.16_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/sev: Register tpm-svsm platform device tpm: Add SNP SVSM vTPM driver svsm: Add header with SVSM_VTPM_CMD helpers x86/sev: Add SVSM vTPM probe/send_command functions |
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Linus Torvalds
|
664a231d90 |
Merge tag 'x86_cache_for_v6.16_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 resource control updates from Borislav Petkov:
"Carve out the resctrl filesystem-related code into fs/resctrl/ so that
multiple architectures can share the fs API for manipulating their
respective hw resource control implementation.
This is the second step in the work towards sharing the resctrl
filesystem interface, the next one being plugging ARM's MPAM into the
aforementioned fs API"
* tag 'x86_cache_for_v6.16_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (25 commits)
MAINTAINERS: Add reviewers for fs/resctrl
x86,fs/resctrl: Move the resctrl filesystem code to live in /fs/resctrl
x86/resctrl: Always initialise rid field in rdt_resources_all[]
x86/resctrl: Relax some asm #includes
x86/resctrl: Prefer alloc(sizeof(*foo)) idiom in rdt_init_fs_context()
x86/resctrl: Squelch whitespace anomalies in resctrl core code
x86/resctrl: Move pseudo lock prototypes to include/linux/resctrl.h
x86/resctrl: Fix types in resctrl_arch_mon_ctx_{alloc,free}() stubs
x86/resctrl: Move enum resctrl_event_id to resctrl.h
x86/resctrl: Move the filesystem bits to headers visible to fs/resctrl
fs/resctrl: Add boiler plate for external resctrl code
x86/resctrl: Add 'resctrl' to the title of the resctrl documentation
x86/resctrl: Split trace.h
x86/resctrl: Expand the width of domid by replacing mon_data_bits
x86/resctrl: Add end-marker to the resctrl_event_id enum
x86/resctrl: Move is_mba_sc() out of core.c
x86/resctrl: Drop __init/__exit on assorted symbols
x86/resctrl: Resctrl_exit() teardown resctrl but leave the mount point
x86/resctrl: Check all domains are offline in resctrl_exit()
x86/resctrl: Rename resctrl_sched_in() to begin with "resctrl_arch_"
...
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Linus Torvalds
|
b1456f6dc1 |
Merge tag 'timers-core-2025-05-25' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull timer core updates from Thomas Gleixner:
"Updates for the time/timer core code:
- Rework the initialization of the posix-timer kmem_cache and move
the cache pointer into the timer_data structure to prevent false
sharing
- Switch the alarmtimer code to lock guards
- Improve the CPU selection criteria in the per CPU validation of the
clocksource watchdog to avoid arbitrary selections (or omissions)
on systems with a small number of CPUs
- The usual cleanups and improvements"
* tag 'timers-core-2025-05-25' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
tick/nohz: Remove unused tick_nohz_full_add_cpus_to()
clocksource: Fix the CPUs' choice in the watchdog per CPU verification
alarmtimer: Switch spin_{lock,unlock}_irqsave() to guards
alarmtimer: Remove dead return value in clock2alarm()
time/jiffies: Change register_refined_jiffies() to void __init
timers: Remove unused __round_jiffies(_up)
posix-timers: Initialize cache early and move pointer into __timer_data
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Linus Torvalds
|
5e8bbb2caa |
Merge tag 'timers-cleanups-2025-05-25' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull timer cleanups from Thomas Gleixner:
"Another set of timer API cleanups:
- Convert init_timer*(), try_to_del_timer_sync() and
destroy_timer_on_stack() over to the canonical timer_*()
namespace convention.
There is another large conversion pending, which has not been included
because it would have caused a gazillion of merge conflicts in next.
The conversion scripts will be run towards the end of the merge window
and a pull request sent once all conflict dependencies have been
merged"
* tag 'timers-cleanups-2025-05-25' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
treewide, timers: Rename destroy_timer_on_stack() as timer_destroy_on_stack()
treewide, timers: Rename try_to_del_timer_sync() as timer_delete_sync_try()
timers: Rename init_timers() as timers_init()
timers: Rename NEXT_TIMER_MAX_DELTA as TIMER_NEXT_MAX_DELTA
timers: Rename __init_timer_on_stack() as __timer_init_on_stack()
timers: Rename __init_timer() as __timer_init()
timers: Rename init_timer_on_stack_key() as timer_init_key_on_stack()
timers: Rename init_timer_key() as timer_init_key()
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Linus Torvalds
|
44ed0f35df |
Merge tag 'irq-msi-2025-05-25' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull MSI updates from Thomas Gleixner:
"Updates for the MSI subsystem (core code and PCI):
- Switch the MSI descriptor locking to lock guards
- Replace a broken and naive implementation of PCI/MSI-X control word
updates in the PCI/TPH driver with a properly serialized variant in
the PCI/MSI core code.
- Remove the MSI descriptor abuse in the SCCI/UFS/QCOM driver by
replacing the direct access to the MSI descriptors with the proper
API function calls. People will never understand that APIs exist
for a reason...
- Provide core infrastructre for the upcoming PCI endpoint library
extensions. Currently limited to ARM GICv3+, but in theory
extensible to other architectures.
- Provide a MSI domain::teardown() callback, which allows drivers to
undo the effects of the prepare() callback.
- Move the MSI domain::prepare() callback invocation to domain
creation time to avoid redundant (and in case of ARM/GIC-V3-ITS
confusing) invocations on every allocation.
In combination with the new teardown callback this removes some
ugly hacks in the GIC-V3-ITS driver, which pretended to work around
the short comings of the core code so far. With this update the
code is correct by design and implementation.
- Make the irqchip MSI library globally available, provide a MSI
parent domain creation helper and convert a bunch of (PCI/)MSI
drivers over to the modern MSI parent mechanism. This is the first
step to get rid of at least one incarnation of the three PCI/MSI
management schemes.
- The usual small cleanups and improvements"
* tag 'irq-msi-2025-05-25' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (33 commits)
PCI/MSI: Use bool for MSI enable state tracking
PCI: tegra: Convert to MSI parent infrastructure
PCI: xgene: Convert to MSI parent infrastructure
PCI: apple: Convert to MSI parent infrastructure
irqchip/msi-lib: Honour the MSI_FLAG_NO_AFFINITY flag
irqchip/mvebu: Convert to msi_create_parent_irq_domain() helper
irqchip/gic: Convert to msi_create_parent_irq_domain() helper
genirq/msi: Add helper for creating MSI-parent irq domains
irqchip: Make irq-msi-lib.h globally available
irqchip/gic-v3-its: Use allocation size from the prepare call
genirq/msi: Engage the .msi_teardown() callback on domain removal
genirq/msi: Move prepare() call to per-device allocation
irqchip/gic-v3-its: Implement .msi_teardown() callback
genirq/msi: Add .msi_teardown() callback as the reverse of .msi_prepare()
irqchip/gic-v3-its: Add support for device tree msi-map and msi-mask
dt-bindings: PCI: pci-ep: Add support for iommu-map and msi-map
irqchip/gic-v3-its: Set IRQ_DOMAIN_FLAG_MSI_IMMUTABLE for ITS
irqdomain: Add IRQ_DOMAIN_FLAG_MSI_IMMUTABLE and irq_domain_is_msi_immutable()
platform-msi: Add msi_remove_device_irq_domain() in platform_device_msi_free_irqs_all()
genirq/msi: Rename msi_[un]lock_descs()
...
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Linus Torvalds
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2bd1bea5fa |
Merge tag 'irq-cleanups-2025-05-25' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull irq cleanups from Thomas Gleixner:
"A set of cleanups for the generic interrupt subsystem:
- Consolidate on one set of functions for the interrupt domain code
to get rid of pointlessly duplicated code with only marginal
different semantics.
- Update the documentation accordingly and consolidate the coding
style of the irqdomain header"
* tag 'irq-cleanups-2025-05-25' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (46 commits)
irqdomain: Consolidate coding style
irqdomain: Fix kernel-doc and add it to Documentation
Documentation: irqdomain: Update it
Documentation: irq-domain.rst: Simple improvements
Documentation: irq/concepts: Minor improvements
Documentation: irq/concepts: Add commas and reflow
irqdomain: Improve kernel-docs of functions
irqdomain: Make struct irq_domain_info variables const
irqdomain: Use irq_domain_instantiate()'s return value as initializers
irqdomain: Drop irq_linear_revmap()
pinctrl: keembay: Switch to irq_find_mapping()
irqchip/armada-370-xp: Switch to irq_find_mapping()
gpu: ipu-v3: Switch to irq_find_mapping()
gpio: idt3243x: Switch to irq_find_mapping()
sh: Switch to irq_find_mapping()
powerpc: Switch to irq_find_mapping()
irqdomain: Drop irq_domain_add_*() functions
powerpc: Switch irq_domain_add_nomap() to use fwnode
thermal: Switch to irq_domain_create_linear()
soc: Switch to irq_domain_create_*()
...
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Linus Torvalds
|
c0f182c979 |
Merge tag 'irq-drivers-2025-05-25' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull irq controller updates from Thomas Gleixner:
"Update for interrupt chip drivers:
- Convert the generic interrupt chip to lock guards to remove copy &
pasta boilerplate code and gotos.
- A new driver fot the interrupt controller in the EcoNet EN751221
MIPS SoC.
- Extend the SG2042-MSI driver to support the new SG2044 SoC
- Updates and cleanups for the (ancient) VT8500 driver
- Improve the scalability of the ARM GICV4.1 ITS driver by utilizing
node local copies a VM's interrupt translation table when possible.
This results in a 12% reduction of VM IPI latency in certain
workloads.
- The usual cleanups and improvements all over the place"
* tag 'irq-drivers-2025-05-25' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (25 commits)
irqchip/irq-pruss-intc: Simplify chained interrupt handler setup
irqchip/gic-v4.1: Use local 4_1 ITS to generate VSGI
irqchip/econet-en751221: Switch to of_fwnode_handle()
irqchip/irq-vt8500: Switch to irq_domain_create_*()
irqchip/econet-en751221: Switch to irq_domain_create_linear()
irqchip/irq-vt8500: Use fewer global variables and add error handling
irqchip/irq-vt8500: Use a dedicated chained handler function
irqchip/irq-vt8500: Don't require 8 interrupts from a chained controller
irqchip/irq-vt8500: Drop redundant copy of the device node pointer
irqchip/irq-vt8500: Split up ack/mask functions
irqchip/sg2042-msi: Fix wrong type cast in sg2044_msi_irq_ack()
irqchip/sg2042-msi: Add the Sophgo SG2044 MSI interrupt controller
irqchip/sg2042-msi: Introduce configurable chipinfo for SG2042
irqchip/sg2042-msi: Rename functions and data structures to be SG2042 agnostic
dt-bindings: interrupt-controller: Add Sophgo SG2044 MSI controller
genirq/generic-chip: Fix incorrect lock guard conversions
genirq/generic-chip: Remove unused lock wrappers
irqchip: Convert generic irqchip locking to guards
gpio: mvebu: Convert generic irqchip locking to guard()
ARM: orion/gpio:: Convert generic irqchip locking to guard()
...
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Linus Torvalds
|
60c1d948f7 |
Merge tag 'irq-core-2025-05-25' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull irq core updates from Thomas Gleixner:
"Updates for the generic interrupt subsystem core code:
- Address a long standing subtle problem in the CPU hotplug code for
affinity-managed interrupts.
Affinity-managed interrupts are shut down by the core code when the
last CPU in the affinity set goes offline and started up again when
the first CPU in the affinity set becomes online again.
This unfortunately does not take into account whether an interrupt
has been disabled before the last CPU goes offline and starts up
the interrupt unconditionally when the first CPU becomes online
again.
That's obviously not what drivers expect.
Address this by preserving the disabled state for affinity-managed
interrupts accross these CPU hotplug operations. All non-managed
interrupts are not affected by this because startup/shutdown is
coupled to request/free_irq() which obviously has to reset state.
- Support three-cell scheme interrupts to allow GPIO drivers to
specify interrupts from an already existing scheme
- Switch the interrupt subsystem core to lock guards. This gets rid
of quite some copy & pasta boilerplate code all over the place.
- The usual small cleanups and improvements all over the place"
* tag 'irq-core-2025-05-25' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (59 commits)
genirq/irqdesc: Remove double locking in hwirq_show()
genirq: Retain disable depth for managed interrupts across CPU hotplug
genirq: Bump the size of the local variable for sprintf()
genirq/manage: Use the correct lock guard in irq_set_irq_wake()
genirq: Consistently use '%u' format specifier for unsigned int variables
genirq: Ensure flags in lock guard is consistently initialized
genirq: Fix inverted condition in handle_nested_irq()
genirq/cpuhotplug: Fix up lock guards conversion brainf..t
genirq: Use scoped_guard() to shut clang up
genirq: Remove unused remove_percpu_irq()
genirq: Remove irq_[get|put]_desc*()
genirq/manage: Rework irq_set_irqchip_state()
genirq/manage: Rework irq_get_irqchip_state()
genirq/manage: Rework teardown_percpu_nmi()
genirq/manage: Rework prepare_percpu_nmi()
genirq/manage: Rework disable_percpu_irq()
genirq/manage: Rework irq_percpu_is_enabled()
genirq/manage: Rework enable_percpu_irq()
genirq/manage: Rework irq_set_parent()
genirq/manage: Rework can_request_irq()
...
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Linus Torvalds
|
0c1494015f |
Merge tag 'core-entry-2025-05-25' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull core entry code updates from Thomas Gleixner:
"Updates for the generic and architecture entry code:
- Move LoongArch and RISC-V ret_from_fork() implementations to C code
so that syscall_exit_user_mode() can be inlined
- Split the RISC-V ret_from_fork() implementation into return to user
and return to kernel, which gives a measurable performance
improvement
- Inline syscall_exit_user_mode() which benefits all architectures by
avoiding a function call and letting the compiler do better
optimizations"
* tag 'core-entry-2025-05-25' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
LoongArch: entry: Fix include order
entry: Inline syscall_exit_to_user_mode()
LoongArch: entry: Migrate ret_from_fork() to C
riscv: entry: Split ret_from_fork() into user and kernel
riscv: entry: Convert ret_from_fork() to C
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Linus Torvalds
|
785cdec46e |
Merge tag 'x86-core-2025-05-25' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull core x86 updates from Ingo Molnar:
"Boot code changes:
- A large series of changes to reorganize the x86 boot code into a
better isolated and easier to maintain base of PIC early startup
code in arch/x86/boot/startup/, by Ard Biesheuvel.
Motivation & background:
| Since commit
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Linus Torvalds
|
ddddf9d64f |
Merge tag 'perf-core-2025-05-25' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull perf events updates from Ingo Molnar:
"Core & generic-arch updates:
- Add support for dynamic constraints and propagate it to the Intel
driver (Kan Liang)
- Fix & enhance driver-specific throttling support (Kan Liang)
- Record sample last_period before updating on the x86 and PowerPC
platforms (Mark Barnett)
- Make perf_pmu_unregister() usable (Peter Zijlstra)
- Unify perf_event_free_task() / perf_event_exit_task_context()
(Peter Zijlstra)
- Simplify perf_event_release_kernel() and perf_event_free_task()
(Peter Zijlstra)
- Allocate non-contiguous AUX pages by default (Yabin Cui)
Uprobes updates:
- Add support to emulate NOP instructions (Jiri Olsa)
- selftests/bpf: Add 5-byte NOP uprobe trigger benchmark (Jiri Olsa)
x86 Intel PMU enhancements:
- Support Intel Auto Counter Reload [ACR] (Kan Liang)
- Add PMU support for Clearwater Forest (Dapeng Mi)
- Arch-PEBS preparatory changes: (Dapeng Mi)
- Parse CPUID archPerfmonExt leaves for non-hybrid CPUs
- Decouple BTS initialization from PEBS initialization
- Introduce pairs of PEBS static calls
x86 AMD PMU enhancements:
- Use hrtimer for handling overflows in the AMD uncore driver
(Sandipan Das)
- Prevent UMC counters from saturating (Sandipan Das)
Fixes and cleanups:
- Fix put_ctx() ordering (Frederic Weisbecker)
- Fix irq work dereferencing garbage (Frederic Weisbecker)
- Misc fixes and cleanups (Changbin Du, Frederic Weisbecker, Ian
Rogers, Ingo Molnar, Kan Liang, Peter Zijlstra, Qing Wang, Sandipan
Das, Thorsten Blum)"
* tag 'perf-core-2025-05-25' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (60 commits)
perf/headers: Clean up <linux/perf_event.h> a bit
perf/uapi: Clean up <uapi/linux/perf_event.h> a bit
perf/uapi: Fix PERF_RECORD_SAMPLE comments in <uapi/linux/perf_event.h>
mips/perf: Remove driver-specific throttle support
xtensa/perf: Remove driver-specific throttle support
sparc/perf: Remove driver-specific throttle support
loongarch/perf: Remove driver-specific throttle support
csky/perf: Remove driver-specific throttle support
arc/perf: Remove driver-specific throttle support
alpha/perf: Remove driver-specific throttle support
perf/apple_m1: Remove driver-specific throttle support
perf/arm: Remove driver-specific throttle support
s390/perf: Remove driver-specific throttle support
powerpc/perf: Remove driver-specific throttle support
perf/x86/zhaoxin: Remove driver-specific throttle support
perf/x86/amd: Remove driver-specific throttle support
perf/x86/intel: Remove driver-specific throttle support
perf: Only dump the throttle log for the leader
perf: Fix the throttle logic for a group
perf/core: Add the is_event_in_freq_mode() helper to simplify the code
...
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Linus Torvalds
|
eaed94d1f6 |
Merge tag 'sched-core-2025-05-25' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull scheduler updates from Ingo Molnar:
"Core & fair scheduler changes:
- Tweak wait_task_inactive() to force dequeue sched_delayed tasks
(John Stultz)
- Adhere to place_entity() constraints (Peter Zijlstra)
- Allow decaying util_est when util_avg > CPU capacity (Pierre
Gondois)
- Fix up wake_up_sync() vs DELAYED_DEQUEUE (Xuewen Yan)
Energy management:
- Introduce sched_update_asym_prefer_cpu() (K Prateek Nayak)
- cpufreq/amd-pstate: Update asym_prefer_cpu when core rankings
change (K Prateek Nayak)
- Align uclamp and util_est and call before freq update (Xuewen Yan)
CPU isolation:
- Make use of more than one housekeeping CPU (Phil Auld)
RT scheduler:
- Fix race in push_rt_task() (Harshit Agarwal)
- Add kernel cmdline option for rt_group_sched (Michal Koutný)
Scheduler topology support:
- Improve topology_span_sane speed (Steve Wahl)
Scheduler debugging:
- Move and extend the sched_process_exit() tracepoint (Andrii
Nakryiko)
- Add RT_GROUP WARN checks for non-root task_groups (Michal Koutný)
- Fix trace_sched_switch(.prev_state) (Peter Zijlstra)
- Untangle cond_resched() and live-patching (Peter Zijlstra)
Fixes and cleanups:
- Misc fixes and cleanups (K Prateek Nayak, Michal Koutný, Peter
Zijlstra, Xuewen Yan)"
* tag 'sched-core-2025-05-25' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (26 commits)
sched/uclamp: Align uclamp and util_est and call before freq update
sched/util_est: Simplify condition for util_est_{en,de}queue()
sched/fair: Fixup wake_up_sync() vs DELAYED_DEQUEUE
sched,livepatch: Untangle cond_resched() and live-patching
sched/core: Tweak wait_task_inactive() to force dequeue sched_delayed tasks
sched/fair: Adhere to place_entity() constraints
sched/debug: Print the local group's asym_prefer_cpu
cpufreq/amd-pstate: Update asym_prefer_cpu when core rankings change
sched/topology: Introduce sched_update_asym_prefer_cpu()
sched/fair: Use READ_ONCE() to read sg->asym_prefer_cpu
sched/isolation: Make use of more than one housekeeping cpu
sched/rt: Fix race in push_rt_task
sched: Add annotations to RT_GROUP_SCHED fields
sched: Add RT_GROUP WARN checks for non-root task_groups
sched: Do not construct nor expose RT_GROUP_SCHED structures if disabled
sched: Bypass bandwitdh checks with runtime disabled RT_GROUP_SCHED
sched: Skip non-root task_groups with disabled RT_GROUP_SCHED
sched: Add commadline option for RT_GROUP_SCHED toggling
sched: Always initialize rt_rq's task_group
sched: Remove unneeed macro wrap
...
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Linus Torvalds
|
b3570b00dc |
Merge tag 'locking-core-2025-05-25' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull locking updates from Ingo Molnar:
"Futexes:
- Add support for task local hash maps (Sebastian Andrzej Siewior,
Peter Zijlstra)
- Implement the FUTEX2_NUMA ABI, which feature extends the futex
interface to be NUMA-aware. On NUMA-aware futexes a second u32 word
containing the NUMA node is added to after the u32 futex value word
(Peter Zijlstra)
- Implement the FUTEX2_MPOL ABI, which feature extends the futex
interface to be mempolicy-aware as well, to further refine futex
node mappings and lookups (Peter Zijlstra)
Locking primitives:
- Misc cleanups (Andy Shevchenko, Borislav Petkov, Colin Ian King,
Ingo Molnar, Nam Cao, Peter Zijlstra)
Lockdep:
- Prevent abuse of lockdep subclasses (Waiman Long)
- Add number of dynamic keys to /proc/lockdep_stats (Waiman Long)
Plus misc cleanups and fixes"
* tag 'locking-core-2025-05-25' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (35 commits)
selftests/futex: Fix spelling mistake "unitiliazed" -> "uninitialized"
futex: Correct the kernedoc return value for futex_wait_setup().
tools headers: Synchronize prctl.h ABI header
futex: Use RCU_INIT_POINTER() in futex_mm_init().
selftests/futex: Use TAP output in futex_numa_mpol
selftests/futex: Use TAP output in futex_priv_hash
futex: Fix kernel-doc comments
futex: Relax the rcu_assign_pointer() assignment of mm->futex_phash in futex_mm_init()
futex: Fix outdated comment in struct restart_block
locking/lockdep: Add number of dynamic keys to /proc/lockdep_stats
locking/lockdep: Prevent abuse of lockdep subclass
locking/lockdep: Move hlock_equal() to the respective #ifdeffery
futex,selftests: Add another FUTEX2_NUMA selftest
selftests/futex: Add futex_numa_mpol
selftests/futex: Add futex_priv_hash
selftests/futex: Build without headers nonsense
tools/perf: Allow to select the number of hash buckets
tools headers: Synchronize prctl.h ABI header
futex: Implement FUTEX2_MPOL
futex: Implement FUTEX2_NUMA
...
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Linus Torvalds
|
14418ddcc2 |
Merge tag 'v6.16-p1' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
Pull crypto updates from Herbert Xu: "API: - Fix memcpy_sglist to handle partially overlapping SG lists - Use memcpy_sglist to replace null skcipher - Rename CRYPTO_TESTS to CRYPTO_BENCHMARK - Flip CRYPTO_MANAGER_DISABLE_TEST into CRYPTO_SELFTESTS - Hide CRYPTO_MANAGER - Add delayed freeing of driver crypto_alg structures Compression: - Allocate large buffers on first use instead of initialisation in scomp - Drop destination linearisation buffer in scomp - Move scomp stream allocation into acomp - Add acomp scatter-gather walker - Remove request chaining - Add optional async request allocation Hashing: - Remove request chaining - Add optional async request allocation - Move partial block handling into API - Add ahash support to hmac - Fix shash documentation to disallow usage in hard IRQs Algorithms: - Remove unnecessary SIMD fallback code on x86 and arm/arm64 - Drop avx10_256 xts(aes)/ctr(aes) on x86 - Improve avx-512 optimisations for xts(aes) - Move chacha arch implementations into lib/crypto - Move poly1305 into lib/crypto and drop unused Crypto API algorithm - Disable powerpc/poly1305 as it has no SIMD fallback - Move sha256 arch implementations into lib/crypto - Convert deflate to acomp - Set block size correctly in cbcmac Drivers: - Do not use sg_dma_len before mapping in sun8i-ss - Fix warm-reboot failure by making shutdown do more work in qat - Add locking in zynqmp-sha - Remove cavium/zip - Add support for PCI device 0x17D8 to ccp - Add qat_6xxx support in qat - Add support for RK3576 in rockchip-rng - Add support for i.MX8QM in caam Others: - Fix irq_fpu_usable/kernel_fpu_begin inconsistency during CPU bring-up - Add new SEV/SNP platform shutdown API in ccp" * tag 'v6.16-p1' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: (382 commits) x86/fpu: Fix irq_fpu_usable() to return false during CPU onlining crypto: qat - add missing header inclusion crypto: api - Redo lookup on EEXIST Revert "crypto: testmgr - Add hash export format testing" crypto: marvell/cesa - Do not chain submitted requests crypto: powerpc/poly1305 - add depends on BROKEN for now Revert "crypto: powerpc/poly1305 - Add SIMD fallback" crypto: ccp - Add missing tee info reg for teev2 crypto: ccp - Add missing bootloader info reg for pspv5 crypto: sun8i-ce - move fallback ahash_request to the end of the struct crypto: octeontx2 - Use dynamic allocated memory region for lmtst crypto: octeontx2 - Initialize cptlfs device info once crypto: xts - Only add ecb if it is not already there crypto: lrw - Only add ecb if it is not already there crypto: testmgr - Add hash export format testing crypto: testmgr - Use ahash for generic tfm crypto: hmac - Add ahash support crypto: testmgr - Ignore EEXIST on shash allocation crypto: algapi - Add driver template support to crypto_inst_setname crypto: shash - Set reqsize in shash_alg ... |
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Linus Torvalds
|
15d90a5e55 |
Merge tag 'crc-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiggers/linux
Pull CRC updates from Eric Biggers: "Cleanups for the kernel's CRC (cyclic redundancy check) code: - Use __ro_after_init where appropriate - Remove unnecessary static_key on s390 - Rename some source code files - Rename the crc32 and crc32c crypto API modules - Use subsys_initcall instead of arch_initcall - Restore maintainers for crc_kunit.c - Fold crc16_byte() into crc16.c - Add some SPDX license identifiers" * tag 'crc-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiggers/linux: lib/crc32: add SPDX license identifier lib/crc16: unexport crc16_table and crc16_byte() w1: ds2406: use crc16() instead of crc16_byte() loop MAINTAINERS: add crc_kunit.c back to CRC LIBRARY lib/crc: make arch-optimized code use subsys_initcall crypto: crc32 - remove "generic" from file and module names x86/crc: drop "glue" from filenames sparc/crc: drop "glue" from filenames s390/crc: drop "glue" from filenames powerpc/crc: rename crc32-vpmsum_core.S to crc-vpmsum-template.S powerpc/crc: drop "glue" from filenames arm64/crc: drop "glue" from filenames arm/crc: drop "glue" from filenames s390/crc32: Remove no-op module init and exit functions s390/crc32: Remove have_vxrs static key lib/crc: make the CPU feature static keys __ro_after_init |
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Linus Torvalds
|
f83fcb87f8 |
Merge tag 'xfs-merge-6.16' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux
Pull xfs updates from Carlos Maiolino: - Atomic writes for XFS - Remove experimental warnings for pNFS, scrub and parent pointers * tag 'xfs-merge-6.16' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux: (26 commits) xfs: add inode to zone caching for data placement xfs: free the item in xfs_mru_cache_insert on failure xfs: remove the EXPERIMENTAL warning for pNFS xfs: remove some EXPERIMENTAL warnings xfs: Remove deprecated xfs_bufd sysctl parameters xfs: stop using set_blocksize xfs: allow sysadmins to specify a maximum atomic write limit at mount time xfs: update atomic write limits xfs: add xfs_calc_atomic_write_unit_max() xfs: add xfs_file_dio_write_atomic() xfs: commit CoW-based atomic writes atomically xfs: add large atomic writes checks in xfs_direct_write_iomap_begin() xfs: add xfs_atomic_write_cow_iomap_begin() xfs: refine atomic write size check in xfs_file_write_iter() xfs: refactor xfs_reflink_end_cow_extent() xfs: allow block allocator to take an alignment hint xfs: ignore HW which cannot atomic write a single block xfs: add helpers to compute transaction reservation for finishing intent items xfs: add helpers to compute log item overhead xfs: separate out setting buftarg atomic writes limits ... |
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Linus Torvalds
|
a56d3133bd |
Merge tag 'configfs-for-v6.16' of git://git.kernel.org/pub/scm/linux/kernel/git/a.hindborg/linux
Pull configfs updates from Andreas Hindborg: - Allow creation of rw files with custom permissions. This allows drivers to better protect secrets written through configfs - Fix a bug where an error condition did not cause an early return while populating attributes - Report ENOMEM rather than EFAULT when kvasprintf() fails in config_item_set_name() - Add a Rust API for configfs. This allows Rust drivers to use configfs through a memory safe interface * tag 'configfs-for-v6.16' of git://git.kernel.org/pub/scm/linux/kernel/git/a.hindborg/linux: MAINTAINERS: add configfs Rust abstractions rust: configfs: add a sample demonstrating configfs usage rust: configfs: introduce rust support for configfs configfs: Correct error value returned by API config_item_set_name() configfs: Do not override creating attribute file failure in populate_attrs() configfs: Delete semicolon from macro type_print() definition configfs: Add CONFIGFS_ATTR_PERM helper |
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Rafael J. Wysocki
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76524ffd10 |
Merge branches 'pm-runtime' and 'pm-sleep'
Merge updates related to system sleep handling and runtime PM for 6.16-rc1: - Fix denying of auto suspend in pm_suspend_timer_fn() (Charan Teja Kalla). - Move debug runtime PM attributes to runtime_attrs[] (Rafael Wysocki). - Add new devm_ functions for enabling runtime PM and runtime PM reference counting (Bence Csókás). - Remove size arguments from strscpy() calls in the hibernation core code (Thorsten Blum). - Adjust the handling of devices with asynchronous suspend enabled during system suspend and resume to start resuming them immediately after resuming their parents and to start suspending such a device immediately after suspending its first child (Rafael Wysocki). - Adjust messages printed during tasks freezing to avoid using pr_cont() (Andrew Sayers, Paul Menzel). - Clean up unnecessary usage of !! in pm_print_times_init() (Zihuan Zhang). - Add missing wakeup source attribute relax_count to sysfs and remove the space character at the end ofi the string produced by pm_show_wakelocks() (Zijun Hu). - Add configurable pm_test delay for hibernation (Zihuan Zhang). - Disable asynchronous suspend in ucsi_ccg_probe() to prevent the cypd4226 device on Tegra boards from suspending prematurely (Jon Hunter). - Unbreak printing PM debug messages during hibernation and clean up some related code (Rafael Wysocki). * pm-runtime: PM: runtime: fix denying of auto suspend in pm_suspend_timer_fn() PM: sysfs: Move debug runtime PM attributes to runtime_attrs[] PM: runtime: Add new devm functions * pm-sleep: PM: freezer: Rewrite restarting tasks log to remove stray *done.* PM: sleep: Introduce pm_sleep_transition_in_progress() PM: sleep: Introduce pm_suspend_in_progress() PM: sleep: Print PM debug messages during hibernation ucsi_ccg: Disable async suspend in ucsi_ccg_probe() PM: hibernate: add configurable delay for pm_test PM: wakeup: Delete space in the end of string shown by pm_show_wakelocks() PM: wakeup: Add missing wakeup source attribute relax_count PM: sleep: Remove unnecessary !! PM: sleep: Use two lines for "Restarting..." / "done" messages PM: sleep: Make suspend of devices more asynchronous PM: sleep: Suspend async parents after suspending children PM: sleep: Resume children after resuming the parent PM: hibernate: Remove size arguments when calling strscpy() |
||
|
Linus Torvalds
|
49fffac983 |
Merge tag 'for-6.16/io_uring-20250523' of git://git.kernel.dk/linux
Pull io_uring updates from Jens Axboe: - Avoid indirect function calls in io-wq for executing and freeing work. The design of io-wq is such that it can be a generic mechanism, but as it's just used by io_uring now, may as well avoid these indirect calls - Clean up registered buffers for networking - Add support for IORING_OP_PIPE. Pretty straight forward, allows creating pipes with io_uring, particularly useful for having these be instantiated as direct descriptors - Clean up the coalescing support fore registered buffers - Add support for multiple interface queues for zero-copy rx networking. As this feature was merged for 6.15 it supported just a single ifq per ring - Clean up the eventfd support - Add dma-buf support to zero-copy rx - Clean up and improving the request draining support - Clean up provided buffer support, most notably with an eye toward making the legacy support less intrusive - Minor fdinfo cleanups, dropping support for dumping what credentials are registered - Improve support for overflow CQE handling, getting rid of GFP_ATOMIC for allocating overflow entries where possible - Improve detection of cases where io-wq doesn't need to spawn a new worker unnecessarily - Various little cleanups * tag 'for-6.16/io_uring-20250523' of git://git.kernel.dk/linux: (59 commits) io_uring/cmd: warn on reg buf imports by ineligible cmds io_uring/io-wq: only create a new worker if it can make progress io_uring/io-wq: ignore non-busy worker going to sleep io_uring/io-wq: move hash helpers to the top trace/io_uring: fix io_uring_local_work_run ctx documentation io_uring: finish IOU_OK -> IOU_COMPLETE transition io_uring: add new helpers for posting overflows io_uring: pass in struct io_big_cqe to io_alloc_ocqe() io_uring: make io_alloc_ocqe() take a struct io_cqe pointer io_uring: split alloc and add of overflow io_uring: open code io_req_cqe_overflow() io_uring/fdinfo: get rid of dumping credentials io_uring/fdinfo: only compile if CONFIG_PROC_FS is set io_uring/kbuf: unify legacy buf provision and removal io_uring/kbuf: refactor __io_remove_buffers io_uring/kbuf: don't compute size twice on prep io_uring/kbuf: drop extra vars in io_register_pbuf_ring io_uring/kbuf: use mem_is_zero() io_uring/kbuf: account ring io_buffer_list memory io_uring: drain based on allocates reqs ... |
||
|
Linus Torvalds
|
6f59de9bc0 |
Merge tag 'for-6.16/block-20250523' of git://git.kernel.dk/linux
Pull block updates from Jens Axboe:
- ublk updates:
- Add support for updating the size of a ublk instance
- Zero-copy improvements
- Auto-registering of buffers for zero-copy
- Series simplifying and improving GET_DATA and request lookup
- Series adding quiesce support
- Lots of selftests additions
- Various cleanups
- NVMe updates via Christoph:
- add per-node DMA pools and use them for PRP/SGL allocations
(Caleb Sander Mateos, Keith Busch)
- nvme-fcloop refcounting fixes (Daniel Wagner)
- support delayed removal of the multipath node and optionally
support the multipath node for private namespaces (Nilay Shroff)
- support shared CQs in the PCI endpoint target code (Wilfred
Mallawa)
- support admin-queue only authentication (Hannes Reinecke)
- use the crc32c library instead of the crypto API (Eric Biggers)
- misc cleanups (Christoph Hellwig, Marcelo Moreira, Hannes
Reinecke, Leon Romanovsky, Gustavo A. R. Silva)
- MD updates via Yu:
- Fix that normal IO can be starved by sync IO, found by mkfs on
newly created large raid5, with some clean up patches for bdev
inflight counters
- Clean up brd, getting rid of atomic kmaps and bvec poking
- Add loop driver specifically for zoned IO testing
- Eliminate blk-rq-qos calls with a static key, if not enabled
- Improve hctx locking for when a plug has IO for multiple queues
pending
- Remove block layer bouncing support, which in turn means we can
remove the per-node bounce stat as well
- Improve blk-throttle support
- Improve delay support for blk-throttle
- Improve brd discard support
- Unify IO scheduler switching. This should also fix a bunch of lockdep
warnings we've been seeing, after enabling lockdep support for queue
freezing/unfreezeing
- Add support for block write streams via FDP (flexible data placement)
on NVMe
- Add a bunch of block helpers, facilitating the removal of a bunch of
duplicated boilerplate code
- Remove obsolete BLK_MQ pci and virtio Kconfig options
- Add atomic/untorn write support to blktrace
- Various little cleanups and fixes
* tag 'for-6.16/block-20250523' of git://git.kernel.dk/linux: (186 commits)
selftests: ublk: add test for UBLK_F_QUIESCE
ublk: add feature UBLK_F_QUIESCE
selftests: ublk: add test case for UBLK_U_CMD_UPDATE_SIZE
traceevent/block: Add REQ_ATOMIC flag to block trace events
ublk: run auto buf unregisgering in same io_ring_ctx with registering
io_uring: add helper io_uring_cmd_ctx_handle()
ublk: remove io argument from ublk_auto_buf_reg_fallback()
ublk: handle ublk_set_auto_buf_reg() failure correctly in ublk_fetch()
selftests: ublk: add test for covering UBLK_AUTO_BUF_REG_FALLBACK
selftests: ublk: support UBLK_F_AUTO_BUF_REG
ublk: support UBLK_AUTO_BUF_REG_FALLBACK
ublk: register buffer to local io_uring with provided buf index via UBLK_F_AUTO_BUF_REG
ublk: prepare for supporting to register request buffer automatically
ublk: convert to refcount_t
selftests: ublk: make IO & device removal test more stressful
nvme: rename nvme_mpath_shutdown_disk to nvme_mpath_remove_disk
nvme: introduce multipath_always_on module param
nvme-multipath: introduce delayed removal of the multipath head node
nvme-pci: derive and better document max segments limits
nvme-pci: use struct_size for allocation struct nvme_dev
...
|
||
|
Rafael J. Wysocki
|
f34dc28343 |
Merge branch 'pm-cpufreq'
Merge cpufreq updates for 6.16-rc1: - Refactor cpufreq_online(), add and use cpufreq policy locking guards, use __free() in policy reference counting, and clean up core cpufreq code on top of that (Rafael Wysocki). - Fix boost handling on CPU suspend/resume and sysfs updates (Viresh Kumar). - Fix des_perf clamping with max_perf in amd_pstate_update() (Dhananjay Ugwekar). - Add offline, online and suspend callbacks to the amd-pstate driver, rename and use the existing amd_pstate_epp callbacks in it (Dhananjay Ugwekar). - Add support for the "Requested CPU Min frequency" BIOS option to the amd-pstate driver (Dhananjay Ugwekar). - Reset amd-pstate driver mode after running selftests (Swapnil Sapkal). - Add helper for governor checks to the schedutil cpufreq governor and move cpufreq-specific EAS checks to cpufreq (Rafael Wysocki). - Populate the cpu_capacity sysfs entries from the intel_pstate driver after registering asym capacity support (Ricardo Neri). - Add support for enabling Energy-aware scheduling (EAS) to the intel_pstate driver when operating in the passive mode on a hybrid platform (Rafael Wysocki). - Avoid shadowing ret in amd_pstate_ut_check_driver() (Nathan Chancellor). - Drop redundant cpus_read_lock() from store_local_boost() in the cpufreq core (Seyediman Seyedarab). - Replace sscanf() with kstrtouint() in the cpufreq code and use a symbol instead of a raw number in it (Bowen Yu). - Add support for autonomous CPU performance state selection to the CPPC cpufreq driver (Lifeng Zheng). * pm-cpufreq: (31 commits) cpufreq: CPPC: Add support for autonomous selection cpufreq: Update sscanf() to kstrtouint() cpufreq: Replace magic number cpufreq: drop redundant cpus_read_lock() from store_local_boost() cpufreq/amd-pstate: Avoid shadowing ret in amd_pstate_ut_check_driver() cpufreq: intel_pstate: Document hybrid processor support cpufreq: intel_pstate: EAS: Increase cost for CPUs using L3 cache cpufreq: intel_pstate: EAS support for hybrid platforms cpufreq: Drop policy locking from cpufreq_policy_is_good_for_eas() cpufreq: intel_pstate: Populate the cpu_capacity sysfs entries arch_topology: Relocate cpu_scale to topology.[h|c] cpufreq/sched: Move cpufreq-specific EAS checks to cpufreq cpufreq/sched: schedutil: Add helper for governor checks amd-pstate-ut: Reset amd-pstate driver mode after running selftests cpufreq/amd-pstate: Add support for the "Requested CPU Min frequency" BIOS option cpufreq/amd-pstate: Add offline, online and suspend callbacks for amd_pstate_driver cpufreq: Force sync policy boost with global boost on sysfs update cpufreq: Preserve policy's boost state after resume cpufreq: Introduce policy_set_boost() cpufreq: Don't unnecessarily call set_boost() ... |
||
|
Linus Torvalds
|
c5bfc48d54 |
Merge tag 'vfs-6.16-rc1.coredump' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs
Pull coredump updates from Christian Brauner:
"This adds support for sending coredumps over an AF_UNIX socket. It
also makes (implicit) use of the new SO_PEERPIDFD ability to hand out
pidfds for reaped peer tasks
The new coredump socket will allow userspace to not have to rely on
usermode helpers for processing coredumps and provides a saf way to
handle them instead of relying on super privileged coredumping helpers
This will also be significantly more lightweight since the kernel
doens't have to do a fork()+exec() for each crashing process to spawn
a usermodehelper. Instead the kernel just connects to the AF_UNIX
socket and userspace can process it concurrently however it sees fit.
Support for userspace is incoming starting with systemd-coredump
There's more work coming in that direction next cycle. The rest below
goes into some details and background
Coredumping currently supports two modes:
(1) Dumping directly into a file somewhere on the filesystem.
(2) Dumping into a pipe connected to a usermode helper process
spawned as a child of the system_unbound_wq or kthreadd
For simplicity I'm mostly ignoring (1). There's probably still some
users of (1) out there but processing coredumps in this way can be
considered adventurous especially in the face of set*id binaries
The most common option should be (2) by now. It works by allowing
userspace to put a string into /proc/sys/kernel/core_pattern like:
|/usr/lib/systemd/systemd-coredump %P %u %g %s %t %c %h
The "|" at the beginning indicates to the kernel that a pipe must be
used. The path following the pipe indicator is a path to a binary that
will be spawned as a usermode helper process. Any additional
parameters pass information about the task that is generating the
coredump to the binary that processes the coredump
In the example the core_pattern shown causes the kernel to spawn
systemd-coredump as a usermode helper. There's various conceptual
consequences of this (non-exhaustive list):
- systemd-coredump is spawned with file descriptor number 0 (stdin)
connected to the read-end of the pipe. All other file descriptors
are closed. That specifically includes 1 (stdout) and 2 (stderr).
This has already caused bugs because userspace assumed that this
cannot happen (Whether or not this is a sane assumption is
irrelevant)
- systemd-coredump will be spawned as a child of system_unbound_wq.
So it is not a child of any userspace process and specifically not
a child of PID 1. It cannot be waited upon and is in a weird hybrid
upcall which are difficult for userspace to control correctly
- systemd-coredump is spawned with full kernel privileges. This
necessitates all kinds of weird privilege dropping excercises in
userspace to make this safe
- A new usermode helper has to be spawned for each crashing process
This adds a new mode:
(3) Dumping into an AF_UNIX socket
Userspace can set /proc/sys/kernel/core_pattern to:
@/path/to/coredump.socket
The "@" at the beginning indicates to the kernel that an AF_UNIX
coredump socket will be used to process coredumps
The coredump socket must be located in the initial mount namespace.
When a task coredumps it opens a client socket in the initial network
namespace and connects to the coredump socket:
- The coredump server uses SO_PEERPIDFD to get a stable handle on the
connected crashing task. The retrieved pidfd will provide a stable
reference even if the crashing task gets SIGKILLed while generating
the coredump. That is a huge attack vector right now
- By setting core_pipe_limit non-zero userspace can guarantee that
the crashing task cannot be reaped behind it's back and thus
process all necessary information in /proc/<pid>. The SO_PEERPIDFD
can be used to detect whether /proc/<pid> still refers to the same
process
The core_pipe_limit isn't used to rate-limit connections to the
socket. This can simply be done via AF_UNIX socket directly
- The pidfd for the crashing task will contain information how the
task coredumps. The PIDFD_GET_INFO ioctl gained a new flag
PIDFD_INFO_COREDUMP which can be used to retreive the coredump
information
If the coredump gets a new coredump client connection the kernel
guarantees that PIDFD_INFO_COREDUMP information is available.
Currently the following information is provided in the new
@coredump_mask extension to struct pidfd_info:
* PIDFD_COREDUMPED is raised if the task did actually coredump
* PIDFD_COREDUMP_SKIP is raised if the task skipped coredumping
(e.g., undumpable)
* PIDFD_COREDUMP_USER is raised if this is a regular coredump and
doesn't need special care by the coredump server
* PIDFD_COREDUMP_ROOT is raised if the generated coredump should
be treated as sensitive and the coredump server should restrict
access to the generated coredump to sufficiently privileged
users"
* tag 'vfs-6.16-rc1.coredump' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs:
mips, net: ensure that SOCK_COREDUMP is defined
selftests/coredump: add tests for AF_UNIX coredumps
selftests/pidfd: add PIDFD_INFO_COREDUMP infrastructure
coredump: validate socket name as it is written
coredump: show supported coredump modes
pidfs, coredump: add PIDFD_INFO_COREDUMP
coredump: add coredump socket
coredump: reflow dump helpers a little
coredump: massage do_coredump()
coredump: massage format_corename()
|
||
|
Rafael J. Wysocki
|
e481e10ab5 |
Merge branch 'pm-em'
Merge energy model management code updates for 6.16-rc1: - Fix potential division-by-zero error in em_compute_costs() (Yaxiong Tian). - Fix typos in energy model documentation and example driver code (Moon Hee Lee, Atul Kumar Pant). - Rearrange the energy model management code and add a new function for adjusting a CPU energy model after adjusting the capacity of the given CPU to it (Rafael Wysocki). * pm-em: PM: EM: Introduce em_adjust_cpu_capacity() PM: EM: Move CPU capacity check to em_adjust_new_capacity() PM: EM: Documentation: Fix typos in example driver code PM: EM: Documentation: fix typo in energy-model.rst PM: EM: Fix potential division-by-zero error in em_compute_costs() |
||
|
Rafael J. Wysocki
|
db0e4d5429 |
Merge branches 'acpi-resource', 'acpi-pm', 'acpi-platform-profile' and 'acpi-docs'
Merge an ACPI resources management update, ACPI power management updates, an ACPI platform profile driver fix and an ACPI documentation update related to device properties for 6.16-rc1: - Fix a typo for MECHREVO in irq1_edge_low_force_override[] (Mingcong Bai). - Add an LPS0 check() callback to the AMD pinctrl driver and fix up config symbol dependencies in it (Mario Limonciello, Rafael Wysocki). - Avoid initializing the ACPI platform profile driver on non-ACPI platforms (Alexandre Ghiti). - Document that references to ACPI data (non-device) nodes should use string-only references in hierarchical data node packages (Sakari Ailus). * acpi-resource: ACPI: resource: fix a typo for MECHREVO in irq1_edge_low_force_override[] * acpi-pm: pinctrl: amd: Fix hibernation support with CONFIG_SUSPEND unset pinctrl: amd: Fix use of undeclared identifier 'pinctrl_amd_s2idle_dev_ops' pinctrl: amd: Add an LPS0 check() callback ACPI: Add missing prototype for non CONFIG_SUSPEND/CONFIG_X86 case * acpi-platform-profile: ACPI: platform_profile: Avoid initializing on non-ACPI platforms * acpi-docs: Documentation: ACPI: Use all-string data node references |
||
|
Linus Torvalds
|
7d7a103d29 |
Merge tag 'vfs-6.16-rc1.pidfs' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs
Pull pidfs updates from Christian Brauner:
"Features:
- Allow handing out pidfds for reaped tasks for AF_UNIX SO_PEERPIDFD
socket option
SO_PEERPIDFD is a socket option that allows to retrieve a pidfd for
the process that called connect() or listen(). This is heavily used
to safely authenticate clients in userspace avoiding security bugs
due to pid recycling races (dbus, polkit, systemd, etc.)
SO_PEERPIDFD currently doesn't support handing out pidfds if the
sk->sk_peer_pid thread-group leader has already been reaped. In
this case it currently returns EINVAL. Userspace still wants to get
a pidfd for a reaped process to have a stable handle it can pass
on. This is especially useful now that it is possible to retrieve
exit information through a pidfd via the PIDFD_GET_INFO ioctl()'s
PIDFD_INFO_EXIT flag
Another summary has been provided by David Rheinsberg:
> A pidfd can outlive the task it refers to, and thus user-space
> must already be prepared that the task underlying a pidfd is
> gone at the time they get their hands on the pidfd. For
> instance, resolving the pidfd to a PID via the fdinfo must be
> prepared to read `-1`.
>
> Despite user-space knowing that a pidfd might be stale, several
> kernel APIs currently add another layer that checks for this. In
> particular, SO_PEERPIDFD returns `EINVAL` if the peer-task was
> already reaped, but returns a stale pidfd if the task is reaped
> immediately after the respective alive-check.
>
> This has the unfortunate effect that user-space now has two ways
> to check for the exact same scenario: A syscall might return
> EINVAL/ESRCH/... *or* the pidfd might be stale, even though
> there is no particular reason to distinguish both cases. This
> also propagates through user-space APIs, which pass on pidfds.
> They must be prepared to pass on `-1` *or* the pidfd, because
> there is no guaranteed way to get a stale pidfd from the kernel.
>
> Userspace must already deal with a pidfd referring to a reaped
> task as the task may exit and get reaped at any time will there
> are still many pidfds referring to it
In order to allow handing out reaped pidfd SO_PEERPIDFD needs to
ensure that PIDFD_INFO_EXIT information is available whenever a
pidfd for a reaped task is created by PIDFD_INFO_EXIT. The uapi
promises that reaped pidfds are only handed out if it is guaranteed
that the caller sees the exit information:
TEST_F(pidfd_info, success_reaped)
{
struct pidfd_info info = {
.mask = PIDFD_INFO_CGROUPID | PIDFD_INFO_EXIT,
};
/*
* Process has already been reaped and PIDFD_INFO_EXIT been set.
* Verify that we can retrieve the exit status of the process.
*/
ASSERT_EQ(ioctl(self->child_pidfd4, PIDFD_GET_INFO, &info), 0);
ASSERT_FALSE(!!(info.mask & PIDFD_INFO_CREDS));
ASSERT_TRUE(!!(info.mask & PIDFD_INFO_EXIT));
ASSERT_TRUE(WIFEXITED(info.exit_code));
ASSERT_EQ(WEXITSTATUS(info.exit_code), 0);
}
To hand out pidfds for reaped processes we thus allocate a pidfs
entry for the relevant sk->sk_peer_pid at the time the
sk->sk_peer_pid is stashed and drop it when the socket is
destroyed. This guarantees that exit information will always be
recorded for the sk->sk_peer_pid task and we can hand out pidfds
for reaped processes
- Hand a pidfd to the coredump usermode helper process
Give userspace a way to instruct the kernel to install a pidfd for
the crashing process into the process started as a usermode helper.
There's still tricky race-windows that cannot be easily or
sometimes not closed at all by userspace. There's various ways like
looking at the start time of a process to make sure that the
usermode helper process is started after the crashing process but
it's all very very brittle and fraught with peril
The crashed-but-not-reaped process can be killed by userspace
before coredump processing programs like systemd-coredump have had
time to manually open a PIDFD from the PID the kernel provides
them, which means they can be tricked into reading from an
arbitrary process, and they run with full privileges as they are
usermode helper processes
Even if that specific race-window wouldn't exist it's still the
safest and cleanest way to let the kernel provide the pidfd
directly instead of requiring userspace to do it manually. In
parallel with this commit we already have systemd adding support
for this in [1]
When the usermode helper process is forked we install a pidfd file
descriptor three into the usermode helper's file descriptor table
so it's available to the exec'd program
Since usermode helpers are either children of the system_unbound_wq
workqueue or kthreadd we know that the file descriptor table is
empty and can thus always use three as the file descriptor number
Note, that we'll install a pidfd for the thread-group leader even
if a subthread is calling do_coredump(). We know that task linkage
hasn't been removed yet and even if this @current isn't the actual
thread-group leader we know that the thread-group leader cannot be
reaped until
@current has exited
- Allow telling when a task has not been found from finding the wrong
task when creating a pidfd
We currently report EINVAL whenever a struct pid has no tasked
attached anymore thereby conflating two concepts:
(1) The task has already been reaped
(2) The caller requested a pidfd for a thread-group leader but the
pid actually references a struct pid that isn't used as a
thread-group leader
This is causing issues for non-threaded workloads as in where they
expect ESRCH to be reported, not EINVAL
So allow userspace to reliably distinguish between (1) and (2)
- Make it possible to detect when a pidfs entry would outlive the
struct pid it pinned
- Add a range of new selftests
Cleanups:
- Remove unneeded NULL check from pidfd_prepare() for passed struct
pid
- Avoid pointless reference count bump during release_task()
Fixes:
- Various fixes to the pidfd and coredump selftests
- Fix error handling for replace_fd() when spawning coredump usermode
helper"
* tag 'vfs-6.16-rc1.pidfs' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs:
pidfs: detect refcount bugs
coredump: hand a pidfd to the usermode coredump helper
coredump: fix error handling for replace_fd()
pidfs: move O_RDWR into pidfs_alloc_file()
selftests: coredump: Raise timeout to 2 minutes
selftests: coredump: Fix test failure for slow machines
selftests: coredump: Properly initialize pointer
net, pidfs: enable handing out pidfds for reaped sk->sk_peer_pid
pidfs: get rid of __pidfd_prepare()
net, pidfs: prepare for handing out pidfds for reaped sk->sk_peer_pid
pidfs: register pid in pidfs
net, pidfd: report EINVAL for ESRCH
release_task: kill the no longer needed get/put_pid(thread_pid)
pidfs: ensure consistent ENOENT/ESRCH reporting
exit: move wake_up_all() pidfd waiters into __unhash_process()
selftest/pidfd: add test for thread-group leader pidfd open for thread
pidfd: improve uapi when task isn't found
pidfd: remove unneeded NULL check from pidfd_prepare()
selftests/pidfd: adapt to recent changes
|
||
|
Linus Torvalds
|
2ca3534623 |
Merge tag 'vfs-6.16-rc1.mount' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs
Pull vfs mount updates from Christian Brauner:
"This contains minor mount updates for this cycle:
- mnt->mnt_devname can never be NULL so simplify the code handling
that case
- Add a comment about concurrent changes during statmount() and
listmount()
- Update the STATMOUNT_SUPPORTED macro
- Convert mount flags to an enum"
* tag 'vfs-6.16-rc1.mount' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs:
statmount: update STATMOUNT_SUPPORTED macro
fs: convert mount flags to enum
->mnt_devname is never NULL
mount: add a comment about concurrent changes with statmount()/listmount()
|
||
|
Rafael J. Wysocki
|
5349b0051b |
Merge branch 'acpi-tables'
Merge updates related to the handling of static (data-only) ACPI tables for 6.16-rc1: - Add __nonstring annotations for unterminated strings in the static ACPI tables parsing code (Kees Cook). - Add support for parsing the MRRM ACPI table and sysfs files to describe memory regions listed in it (Tony Luck, Anil Keshavamurthy). - Remove an (explicitly) unused header file include from the VIOT ACPI table parser file (Andy Shevchenko). - Improve logging around acpi_initialize_tables() (Bartosz Szczepanek). * acpi-tables: ACPI: MRRM: Fix default max memory region ACPI: tables: Improve logging around acpi_initialize_tables() ACPI: VIOT: Remove (explicitly) unused header ACPI: Add documentation for exposing MRRM data ACPI: MRRM: Add /sys files to describe memory ranges ACPI: MRRM: Minimal parse of ACPI MRRM table ACPI: tables: Add __nonstring annotations for unterminated strings |
||
|
Linus Torvalds
|
8dd53535f1 |
Merge tag 'vfs-6.16-rc1.super' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs
Pull vfs freezing updates from Christian Brauner:
"This contains various filesystem freezing related work for this cycle:
- Allow the power subsystem to support filesystem freeze for suspend
and hibernate.
Now all the pieces are in place to actually allow the power
subsystem to freeze/thaw filesystems during suspend/resume.
Filesystems are only frozen and thawed if the power subsystem does
actually own the freeze.
If the filesystem is already frozen by the time we've frozen all
userspace processes we don't care to freeze it again. That's
userspace's job once the process resumes. We only actually freeze
filesystems if we absolutely have to and we ignore other failures
to freeze.
We could bubble up errors and fail suspend/resume if the error
isn't EBUSY (aka it's already frozen) but I don't think that this
is worth it. Filesystem freezing during suspend/resume is
best-effort. If the user has 500 ext4 filesystems mounted and 4
fail to freeze for whatever reason then we simply skip them.
What we have now is already a big improvement and let's see how we
fare with it before making our lives even harder (and uglier) than
we have to.
- Allow efivars to support freeze and thaw
Allow efivarfs to partake to resync variable state during system
hibernation and suspend. Add freeze/thaw support.
This is a pretty straightforward implementation. We simply add
regular freeze/thaw support for both userspace and the kernel.
efivars is the first pseudofilesystem that adds support for
filesystem freezing and thawing.
The simplicity comes from the fact that we simply always resync
variable state after efivarfs has been frozen. It doesn't matter
whether that's because of suspend, userspace initiated freeze or
hibernation. Efivars is simple enough that it doesn't matter that
we walk all dentries. There are no directories and there aren't
insane amounts of entries and both freeze/thaw are already
heavy-handed operations. If userspace initiated a freeze/thaw cycle
they would need CAP_SYS_ADMIN in the initial user namespace (as
that's where efivarfs is mounted) so it can't be triggered by
random userspace. IOW, we really really don't care"
* tag 'vfs-6.16-rc1.super' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs:
f2fs: fix freezing filesystem during resize
kernfs: add warning about implementing freeze/thaw
efivarfs: support freeze/thaw
power: freeze filesystems during suspend/resume
libfs: export find_next_child()
super: add filesystem freezing helpers for suspend and hibernate
gfs2: pass through holder from the VFS for freeze/thaw
super: use common iterator (Part 2)
super: use a common iterator (Part 1)
super: skip dying superblocks early
super: simplify user_get_super()
super: remove pointless s_root checks
fs: allow all writers to be frozen
locking/percpu-rwsem: add freezable alternative to down_read
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Linus Torvalds
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181d8e399f |
Merge tag 'vfs-6.16-rc1.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs
Pull misc vfs updates from Christian Brauner:
"This contains the usual selections of misc updates for this cycle.
Features:
- Use folios for symlinks in the page cache
FUSE already uses folios for its symlinks. Mirror that conversion
in the generic code and the NFS code. That lets us get rid of a few
folio->page->folio conversions in this path, and some of the few
remaining users of read_cache_page() / read_mapping_page()
- Try and make a few filesystem operations killable on the VFS
inode->i_mutex level
- Add sysctl vfs_cache_pressure_denom for bulk file operations
Some workloads need to preserve more dentries than we currently
allow through out sysctl interface
A HDFS servers with 12 HDDs per server, on a HDFS datanode startup
involves scanning all files and caching their metadata (including
dentries and inodes) in memory. Each HDD contains approximately 2
million files, resulting in a total of ~20 million cached dentries
after initialization
To minimize dentry reclamation, they set vfs_cache_pressure to 1.
Despite this configuration, memory pressure conditions can still
trigger reclamation of up to 50% of cached dentries, reducing the
cache from 20 million to approximately 10 million entries. During
the subsequent cache rebuild period, any HDFS datanode restart
operation incurs substantial latency penalties until full cache
recovery completes
To maintain service stability, more dentries need to be preserved
during memory reclamation. The current minimum reclaim ratio (1/100
of total dentries) remains too aggressive for such workload. This
patch introduces vfs_cache_pressure_denom for more granular cache
pressure control
The configuration [vfs_cache_pressure=1,
vfs_cache_pressure_denom=10000] effectively maintains the full 20
million dentry cache under memory pressure, preventing datanode
restart performance degradation
- Avoid some jumps in inode_permission() using likely()/unlikely()
- Avid a memory access which is most likely a cache miss when
descending into devcgroup_inode_permission()
- Add fastpath predicts for stat() and fdput()
- Anonymous inodes currently don't come with a proper mode causing
issues in the kernel when we want to add useful VFS debug assert.
Fix that by giving them a proper mode and masking it off when we
report it to userspace which relies on them not having any mode
- Anonymous inodes currently allow to change inode attributes because
the VFS falls back to simple_setattr() if i_op->setattr isn't
implemented. This means the ownership and mode for every single
user of anon_inode_inode can be changed. Block that as it's either
useless or actively harmful. If specific ownership is needed the
respective subsystem should allocate anonymous inodes from their
own private superblock
- Raise SB_I_NODEV and SB_I_NOEXEC on the anonymous inode superblock
- Add proper tests for anonymous inode behavior
- Make it easy to detect proper anonymous inodes and to ensure that
we can detect them in codepaths such as readahead()
Cleanups:
- Port pidfs to the new anon_inode_{g,s}etattr() helpers
- Try to remove the uselib() system call
- Add unlikely branch hint return path for poll
- Add unlikely branch hint on return path for core_sys_select
- Don't allow signals to interrupt getdents copying for fuse
- Provide a size hint to dir_context for during readdir()
- Use writeback_iter directly in mpage_writepages
- Update compression and mtime descriptions in initramfs
documentation
- Update main netfs API document
- Remove useless plus one in super_cache_scan()
- Remove unnecessary NULL-check guards during setns()
- Add separate separate {get,put}_cgroup_ns no-op cases
Fixes:
- Fix typo in root= kernel parameter description
- Use KERN_INFO for infof()|info_plog()|infofc()
- Correct comments of fs_validate_description()
- Mark an unlikely if condition with unlikely() in
vfs_parse_monolithic_sep()
- Delete macro fsparam_u32hex()
- Remove unused and problematic validate_constant_table()
- Fix potential unsigned integer underflow in fs_name()
- Make file-nr output the total allocated file handles"
* tag 'vfs-6.16-rc1.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs: (43 commits)
fs: Pass a folio to page_put_link()
nfs: Use a folio in nfs_get_link()
fs: Convert __page_get_link() to use a folio
fs/read_write: make default_llseek() killable
fs/open: make do_truncate() killable
fs/open: make chmod_common() and chown_common() killable
include/linux/fs.h: add inode_lock_killable()
readdir: supply dir_context.count as readdir buffer size hint
vfs: Add sysctl vfs_cache_pressure_denom for bulk file operations
fuse: don't allow signals to interrupt getdents copying
Documentation: fix typo in root= kernel parameter description
include/cgroup: separate {get,put}_cgroup_ns no-op case
kernel/nsproxy: remove unnecessary guards
fs: use writeback_iter directly in mpage_writepages
fs: remove useless plus one in super_cache_scan()
fs: add S_ANON_INODE
fs: remove uselib() system call
device_cgroup: avoid access to ->i_rdev in the common case in devcgroup_inode_permission()
fs/fs_parse: Remove unused and problematic validate_constant_table()
fs: touch up predicts in inode_permission()
...
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Linus Torvalds
|
dc76285144 |
Merge tag 'vfs-6.16-rc1.writepage' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs
Pull final writepage conversion from Christian Brauner: "This converts vboxfs from ->writepage() to ->writepages(). This was the last user of the ->writepage() method. So remove ->writepage() completely and all references to it" * tag 'vfs-6.16-rc1.writepage' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs: fs: Remove aops->writepage mm: Remove swap_writepage() and shmem_writepage() ttm: Call shmem_writeout() from ttm_backup_backup_page() i915: Use writeback_iter() shmem: Add shmem_writeout() writeback: Remove writeback_use_writepage() migrate: Remove call to ->writepage vboxsf: Convert to writepages 9p: Add a migrate_folio method |
||
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Linus Torvalds
|
6d5b940e1e |
Merge tag 'vfs-6.16-rc1.async.dir' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs
Pull vfs directory lookup updates from Christian Brauner: "This contains cleanups for the lookup_one*() family of helpers. We expose a set of functions with names containing "lookup_one_len" and others without the "_len". This difference has nothing to do with "len". It's rater a historical accident that can be confusing. The functions without "_len" take a "mnt_idmap" pointer. This is found in the "vfsmount" and that is an important question when choosing which to use: do you have a vfsmount, or are you "inside" the filesystem. A related question is "is permission checking relevant here?". nfsd and cachefiles *do* have a vfsmount but *don't* use the non-_len functions. They pass nop_mnt_idmap and refuse to work on filesystems which have any other idmap. This work changes nfsd and cachefile to use the lookup_one family of functions and to explictily pass &nop_mnt_idmap which is consistent with all other vfs interfaces used where &nop_mnt_idmap is explicitly passed. The remaining uses of the "_one" functions do not require permission checks so these are renamed to be "_noperm" and the permission checking is removed. This series also changes these lookup function to take a qstr instead of separate name and len. In many cases this simplifies the call" * tag 'vfs-6.16-rc1.async.dir' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs: VFS: change lookup_one_common and lookup_noperm_common to take a qstr Use try_lookup_noperm() instead of d_hash_and_lookup() outside of VFS VFS: rename lookup_one_len family to lookup_noperm and remove permission check cachefiles: Use lookup_one() rather than lookup_one_len() nfsd: Use lookup_one() rather than lookup_one_len() VFS: improve interface for lookup_one functions |