mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/
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1,426,898 commits
| Author | SHA1 | Message | Date | |
|---|---|---|---|---|
Linus Torvalds
|
0c61526621 |
EFI updates for v7.0
- Quirk the broken EFI framebuffer geometry on the Valve Steam Deck - Capture the EDID information of the primary display also on non-x86 EFI systems when booting via the EFI stub. -----BEGIN PGP SIGNATURE----- iHUEABYKAB0WIQQQm/3uucuRGn1Dmh0wbglWLn0tXAUCaYoTAgAKCRAwbglWLn0t XFe8AQDJe2GSNfzWgqoTqgT6tcH7lFG2SjdpIb+jHSmvgHckbAD/cUaY8YnhdYkm nz6URLJN/2NHuaDq1mUL8CwJwIot4wk= =41tn -----END PGP SIGNATURE----- Merge tag 'efi-next-for-v7.0' of git://git.kernel.org/pub/scm/linux/kernel/git/efi/efi Pull EFI updates from Ard Biesheuvel: - Quirk the broken EFI framebuffer geometry on the Valve Steam Deck - Capture the EDID information of the primary display also on non-x86 EFI systems when booting via the EFI stub. * tag 'efi-next-for-v7.0' of git://git.kernel.org/pub/scm/linux/kernel/git/efi/efi: efi: Support EDID information sysfb: Move edid_info into sysfb_primary_display sysfb: Pass sysfb_primary_display to devices sysfb: Replace screen_info with sysfb_primary_display sysfb: Add struct sysfb_display_info efi: sysfb_efi: Reduce number of references to global screen_info efi: earlycon: Reduce number of references to global screen_info efi: sysfb_efi: Fix efidrmfb and simpledrmfb on Valve Steam Deck efi: sysfb_efi: Convert swap width and height quirk to a callback efi: sysfb_efi: Fix lfb_linelength calculation when applying quirks efi: sysfb_efi: Replace open coded swap with the macro |
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Linus Torvalds
|
33120a2f8f |
xen: branch for v7.0-rc1
-----BEGIN PGP SIGNATURE----- iJEEABYKADkWIQRTLbB6QfY48x44uB6AXGG7T9hjvgUCaYmAPhsUgAAAAAAEAA5t YW51MiwyLjUrMS4xMSwyLDIACgkQgFxhu0/YY75PKAEAgNaon3unLoRnCGPjkRxL kruzd/KHcodevfz0koL7hOUA/iHOEpGIibCHJpmj2xt/kgLCxxMCQVupalDfeKwq 4jYN =Vy9z -----END PGP SIGNATURE----- Merge tag 'for-linus-7.0-rc1-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip Pull xen updates from Juergen Gross: - fix running as Xen PVH guest in 32-bit mode without PAE - fix PV device handling for suspend/resume when running as a Xen guest - clean up workqueue usage - fix the Xen balloon driver for PVH dom0 - introduce the possibility to use hypercalls for console messages in unprivileged guests - enable Xen dom0 use of virtio devices in nested virtualization setups - simplify the xen-mcelog driver * tag 'for-linus-7.0-rc1-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip: xenbus: Rename helpers to freeze/thaw/restore xenbus: Use .freeze/.thaw to handle xenbus devices xen/mcelog: simplify MCE_GETCLEAR_FLAGS using xchg() xen/balloon: improve accuracy of initial balloon target for dom0 Partial revert "x86/xen: fix balloon target initialization for PVH dom0" xen: introduce xen_console_io option xen/virtio: Don't use grant-dma-ops when running as Dom0 x86/xen/pvh: Enable PAE mode for 32-bit guest only when CONFIG_X86_PAE is set xen: privcmd: WQ_PERCPU added to alloc_workqueue users xen/events: replace use of system_wq with system_percpu_wq |
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Linus Torvalds
|
45bf4bc87c |
arm64 updates for 7.0
ACPI:
- Add interrupt signalling support to the AGDI handler.
- Add Catalin and myself to the arm64 ACPI MAINTAINERS entry.
CPU features:
- Drop Kconfig options for PAN and LSE (these are detected at runtime).
- Add support for 64-byte single-copy atomic instructions (LS64/LS64V).
- Reduce MTE overhead when executing in the kernel on Ampere CPUs.
- Ensure POR_EL0 value exposed via ptrace is up-to-date.
- Fix error handling on GCS allocation failure.
CPU frequency:
- Add CPU hotplug support to the FIE setup in the AMU driver.
Entry code:
- Minor optimisations and cleanups to the syscall entry path.
- Preparatory rework for moving to the generic syscall entry code.
Hardware errata:
- Work around Spectre-BHB on TSV110 processors.
- Work around broken CMO propagation on some systems with the SI-L1
interconnect.
Miscellaneous:
- Disable branch profiling for arch/arm64/ to avoid issues with noinstr.
- Minor fixes and cleanups (kexec + ubsan, WARN_ONCE() instead of
WARN_ON(), reduction of boolean expression).
- Fix custom __READ_ONCE() implementation for LTO builds when operating
on non-atomic types.
Perf and PMUs:
- Support for CMN-600AE.
- Be stricter about supported hardware in the CMN driver.
- Support for DSU-110 and DSU-120.
- Support for the cycles event in the DSU driver (alongside the
dedicated cycles counter).
- Use IRQF_NO_THREAD instead of IRQF_ONESHOT in the cxlpmu driver.
- Use !bitmap_empty() as a faster alternative to bitmap_weight().
- Fix SPE error handling when failing to resume profiling.
Selftests:
- Add support for the FORCE_TARGETS option to the arm64 kselftests.
- Avoid nolibc-specific my_syscall() function.
- Add basic test for the LS64 HWCAP.
- Extend fp-pidbench to cover additional workload patterns.
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Merge tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Pull arm64 updates from Will Deacon:
"There's a little less than normal, probably due to LPC & Christmas/New
Year meaning that a few series weren't quite ready or reviewed in
time. It's still useful across the board, despite the only real
feature being support for the LS64 feature enabling 64-byte atomic
accesses to endpoints that support it.
ACPI:
- Add interrupt signalling support to the AGDI handler
- Add Catalin and myself to the arm64 ACPI MAINTAINERS entry
CPU features:
- Drop Kconfig options for PAN and LSE (these are detected at runtime)
- Add support for 64-byte single-copy atomic instructions (LS64/LS64V)
- Reduce MTE overhead when executing in the kernel on Ampere CPUs
- Ensure POR_EL0 value exposed via ptrace is up-to-date
- Fix error handling on GCS allocation failure
CPU frequency:
- Add CPU hotplug support to the FIE setup in the AMU driver
Entry code:
- Minor optimisations and cleanups to the syscall entry path
- Preparatory rework for moving to the generic syscall entry code
Hardware errata:
- Work around Spectre-BHB on TSV110 processors
- Work around broken CMO propagation on some systems with the SI-L1
interconnect
Miscellaneous:
- Disable branch profiling for arch/arm64/ to avoid issues with
noinstr
- Minor fixes and cleanups (kexec + ubsan, WARN_ONCE() instead of
WARN_ON(), reduction of boolean expression)
- Fix custom __READ_ONCE() implementation for LTO builds when
operating on non-atomic types
Perf and PMUs:
- Support for CMN-600AE
- Be stricter about supported hardware in the CMN driver
- Support for DSU-110 and DSU-120
- Support for the cycles event in the DSU driver (alongside the
dedicated cycles counter)
- Use IRQF_NO_THREAD instead of IRQF_ONESHOT in the cxlpmu driver
- Use !bitmap_empty() as a faster alternative to bitmap_weight()
- Fix SPE error handling when failing to resume profiling
Selftests:
- Add support for the FORCE_TARGETS option to the arm64 kselftests
- Avoid nolibc-specific my_syscall() function
- Add basic test for the LS64 HWCAP
- Extend fp-pidbench to cover additional workload patterns"
* tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: (43 commits)
perf/arm-cmn: Reject unsupported hardware configurations
perf: arm_spe: Properly set hw.state on failures
arm64/gcs: Fix error handling in arch_set_shadow_stack_status()
arm64: Fix non-atomic __READ_ONCE() with CONFIG_LTO=y
arm64: poe: fix stale POR_EL0 values for ptrace
kselftest/arm64: Raise default number of loops in fp-pidbench
kselftest/arm64: Add a no-SVE loop after SVE in fp-pidbench
perf/cxlpmu: Replace IRQF_ONESHOT with IRQF_NO_THREAD
arm64: mte: Set TCMA1 whenever MTE is present in the kernel
arm64/ptrace: Return early for ptrace_report_syscall_entry() error
arm64/ptrace: Split report_syscall()
arm64: Remove unused _TIF_WORK_MASK
kselftest/arm64: Add missing file in .gitignore
arm64: errata: Workaround for SI L1 downstream coherency issue
kselftest/arm64: Add HWCAP test for FEAT_LS64
arm64: Add support for FEAT_{LS64, LS64_V}
KVM: arm64: Enable FEAT_{LS64, LS64_V} in the supported guest
arm64: Provide basic EL2 setup for FEAT_{LS64, LS64_V} usage at EL0/1
KVM: arm64: Handle DABT caused by LS64* instructions on unsupported memory
KVM: arm64: Add documentation for KVM_EXIT_ARM_LDST64B
...
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Linus Torvalds
|
9f722cb730 |
alpha updates for v7.0
- alpha: fix user-space corruption during memory compaction -----BEGIN PGP SIGNATURE----- iHUEABYKAB0WIQTIw07U9ivnHy+tugnaDr6nZQzE/AUCaYm1bQAKCRDaDr6nZQzE /AZgAPsFHt+AG0UhYWOdTkxhFjRf0H40vcE53NinR44sZ1V6uAEAio5rVRdE/ka1 dEUOR1wlovShKqPvGRTyHjBQEkrsFgw= =XppX -----END PGP SIGNATURE----- Merge tag 'alpha-for-v7.0-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/lindholm/alpha Pull alpha update from Magnus Lindholm: - alpha: fix user-space corruption during memory compaction * tag 'alpha-for-v7.0-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/lindholm/alpha: alpha: fix user-space corruption during memory compaction |
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Linus Torvalds
|
7e3a1e0ccc |
This includes the following changes related to sparc for v7.0:
- Hardcode uapi ioctls.h TC* constants to not rely upon struct termio that has been dropped by glibc - Fix bug for fork/clone and add support for clone3 - Add ARCH_HAS_CC_CAN_LINK - API choice improvements and cleanup of unused variables -----BEGIN PGP SIGNATURE----- iIoEABYIADIWIQQfqfbgobF48oKMeq81AykqDLayywUCaYm+ARQcYW5kcmVhc0Bn YWlzbGVyLmNvbQAKCRA1AykqDLayy9n8AP0Vw4VHX26dE7x80OcN+bmLWEWvigsg /uM5lmDnQK/28QD/dhaeRnIAC4ge2IvdpUz0Y39oHICVEQZWhacZDTFwcgw= =Z+wU -----END PGP SIGNATURE----- Merge tag 'sparc-for-7.0-tag1' of git://git.kernel.org/pub/scm/linux/kernel/git/alarsson/linux-sparc Pull sparc updates from Andreas Larsson: - Hardcode uapi ioctls.h TC* constants to not rely upon struct termio that has been dropped by glibc - Fix bug for fork/clone and add support for clone3 - Add ARCH_HAS_CC_CAN_LINK - API choice improvements and cleanup of unused variables * tag 'sparc-for-7.0-tag1' of git://git.kernel.org/pub/scm/linux/kernel/git/alarsson/linux-sparc: sparc: remove unused variable strtab sparc64: fix unused variable warning sparc: don't reference obsolete termio struct for TC* constants sparc: vio: Replace snprintf with strscpy in vio_create_one sparc: Add architecture support for clone3 sparc: Synchronize user stack on fork and clone sparc: Implement ARCH_HAS_CC_CAN_LINK |
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Linus Torvalds
|
b33c3b8404 |
m68k updates for v7.0
- Add missing put_device() in the NuBus driver, - Replace vsprintf() with vsnprintf() on Sun-3. -----BEGIN PGP SIGNATURE----- iHUEABYKAB0WIQQ9qaHoIs/1I4cXmEiKwlD9ZEnxcAUCaYmixQAKCRCKwlD9ZEnx cCPPAPwPe2gkqTaO0ddM4457zLXxDqLwknClmqK1oMZx2J7aOgD9FzDcYKDpTvP0 NPg6nwbTs45sVcTmUvm7dxb39h5P+ws= =7Cd4 -----END PGP SIGNATURE----- Merge tag 'm68k-for-v7.0-tag1' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k Pull m68k updates from Geert Uytterhoeven: - Add missing put_device() in the NuBus driver - Replace vsprintf() with vsnprintf() on Sun-3 * tag 'm68k-for-v7.0-tag1' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k: m68k: sun3: Replace vsprintf() with bounded vsnprintf() nubus: Call put_device() in bus initialization error path |
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Linus Torvalds
|
c48953d819 |
s390 updates for 7.0 merge window
- Drop support for outdated 3590/3592 and 3480 tape devices, and limit support to virtualized 3490E types devices - Implement exception based WARN() and WARN_ONCE() similar to x86 - Slightly optimize preempt primitives like __preempt_count_add() and __preempt_count_dec_and_test() - A couple of small fixes and improvements -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEECMNfWEw3SLnmiLkZIg7DeRspbsIFAmmHePIACgkQIg7DeRsp bsIQeA//ZBOWwSlIkGhdH/qn7F2RMxq/FkvYN28YvCo1VFdAiqRXjDBH8yXE9Px4 MghsDY1GzmW3M56Qq/rYZ2UhK0dIgpu9l8SJa5uxRaIzhIUxjmNJa+f3LhtCTZZH 9timoL5zL+n8QwwLPo9DgKy+m/BOodKBeI9cHFYoia64eJqo1xDVg8tYzW+vlVZT LZt0kT6Nz/Hrkg/uOhsz40IGzR/fcsNeDGTF+JIjqcfpdMSAeDMeleWVRacw/0BZ q1gifRXxe04N8bjS7c98RiKX7CD3xQzzibH2ert2Mupu+yir6pvAlgYHOif3Z8gi 6trcSWaxZCCslS2U7O1g/hyz1WXEFC+iDwajGiqT0XRSjuQ2FeVmfqcmaE0CekyY 5mpdtwfLrNSZJL422a3lckqz73gkge5hC46wgvhpvx7lb4IF6paYsk6FPDZlxw+/ THxbrYufs71VACvcfRs5MXSS94qkzkdgo5jhnS/m5zhblIrdkBUz29c5g24qUWo1 ihyzkqtwMFHpKXE9rHK/Z80uZXr4/cLPpMq8XYXRQHZ6vFyZFfu4QpLHWTQ0VMyp ZBijhRqzlN/nAItAfBsgJ5QipHk2WL7V8zoi5xu7QeH+lrZ+7+koSVxGJAZbG4OO 3fv6Nucjr/zCbyRKrjEaWaXzdMCVSdfrtfTQgftgFHTO8IxVLjc= =xeBU -----END PGP SIGNATURE----- Merge tag 's390-7.0-1' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux Pull s390 updates from Heiko Carstens: - Drop support for outdated 3590/3592 and 3480 tape devices, and limit support to virtualized 3490E types devices - Implement exception based WARN() and WARN_ONCE() similar to x86 - Slightly optimize preempt primitives like __preempt_count_add() and __preempt_count_dec_and_test() - A couple of small fixes and improvements * tag 's390-7.0-1' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux: (35 commits) s390/tape: Consolidate tape config options and modules s390/cio: Fix device lifecycle handling in css_alloc_subchannel() s390/tape: Rename tape_34xx.c to tape_3490.c s390/tape: Cleanup sense data analysis and error handling s390/tape: Remove 3480 tape device type s390/tape: Remove unused command definitions s390/tape: Remove special block id handling s390/tape: Remove tape load display support s390/tape: Remove support for 3590/3592 models s390/kexec: Emit an error message when cmdline is too long s390/configs: Enable BLK_DEV_NULL_BLK as module s390: Document s390 stackprotector support s390/perf: Disable register readout on sampling events s390/Kconfig: Define non-zero ILLEGAL_POINTER_VALUE s390/bug: Prevent tail-call optimization s390/bug: Skip __WARN_trap() in call traces s390/bug: Implement WARN_ONCE() s390/bug: Implement __WARN_printf() s390/traps: Copy monitor code to pt_regs s390/bug: Introduce and use monitor code macro ... |
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Linus Torvalds
|
861ea34546 |
nolibc changes for 6.20/7.0
Highlights: * All time-related functionality uses 64-bit timestamps for y2038 compatibility. * fread() and fskeek() support. * ptrace() support. * Addition of libc-test to the regular kselftests. * Smaller cleanups and fixes to the code and build system. -----BEGIN PGP SIGNATURE----- iHUEABYKAB0WIQTg4lxklFHAidmUs57B+h1jyw5bOAUCaYZbJAAKCRDB+h1jyw5b OBltAP9YupAeS60SqY48GGi4WEWqaEcdOrDI0xOC67UVK0xWeQD/bJiY51f5AQKa rHUnbHzQGyTBmJ6dRJBzYs7c09EqdQQ= =ai2F -----END PGP SIGNATURE----- Merge tag 'nolibc-20260206-for-7.0-1' of git://git.kernel.org/pub/scm/linux/kernel/git/nolibc/linux-nolibc Pull nolibc updates from Thomas Weißschuh: - All time-related functionality uses 64-bit timestamps for y2038 compatibility - fread() and fskeek() support - ptrace() support - Addition of libc-test to the regular kselftests - Smaller cleanups and fixes to the code and build system * tag 'nolibc-20260206-for-7.0-1' of git://git.kernel.org/pub/scm/linux/kernel/git/nolibc/linux-nolibc: (25 commits) tools/nolibc: Add a simple test for writing to a FILE and reading it back tools/nolibc: Add fseek() to stdio.h tools/nolibc: Add fread() to stdio.h selftests/nolibc: also test libc-test through regular selftest framework selftests/nolibc: scope custom flags to the nolibc-test target selftests/nolibc: try to read from stdin in readv_zero test selftests/nolibc: always build sparc32 tests with -mcpu=v8 tools/nolibc: align sys_vfork() with sys_fork() selftests/nolibc: drop NOLIBC_SYSROOT=0 logic selftests/nolibc: add static assertions around time types handling tools/nolibc: add __nolibc_static_assert() tools/nolibc: add compiler version detection macros tools/nolibc: remove time conversions selftests/nolibc: test compatibility of nolibc and kernel time types tools/nolibc: always use 64-bit time types tools/nolibc: use custom structs timespec and timeval tools/nolibc/select: avoid libgcc 64-bit multiplications tools/nolibc/gettimeofday: avoid libgcc 64-bit divisions tools/nolibc: prefer explicit 64-bit time-related system calls tools/nolibc/time: drop invocation of gettimeofday system call ... |
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Linus Torvalds
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d16738a4e7 |
The kthread code provides an infrastructure which manages the preferred
affinity of unbound kthreads (node or custom cpumask) against housekeeping (CPU isolation) constraints and CPU hotplug events. One crucial missing piece is the handling of cpuset: when an isolated partition is created, deleted, or its CPUs updated, all the unbound kthreads in the top cpuset become indifferently affine to _all_ the non-isolated CPUs, possibly breaking their preferred affinity along the way. Solve this with performing the kthreads affinity update from cpuset to the kthreads consolidated relevant code instead so that preferred affinities are honoured and applied against the updated cpuset isolated partitions. The dispatch of the new isolated cpumasks to timers, workqueues and kthreads is performed by housekeeping, as per the nice Tejun's suggestion. As a welcome side effect, HK_TYPE_DOMAIN then integrates both the set from boot defined domain isolation (through isolcpus=) and cpuset isolated partitions. Housekeeping cpumasks are now modifiable with a specific RCU based synchronization. A big step toward making nohz_full= also mutable through cpuset in the future. -----BEGIN PGP SIGNATURE----- iQJPBAABCAA5FiEEd76+gtGM8MbftQlOhSRUR1COjHcFAmmE0mYbFIAAAAAABAAO bWFudTIsMi41KzEuMTEsMiwyAAoJEIUkVEdQjox36eMP/0Ls/ArfYVi/MNAXWlpy rAt6m9Y/X9GBcDM/VI9BXq1ZX4qEr2XjJ8UUb8cM08uHEAt0ErlmpRxREwJFrKbI H4jzg5EwO0D0c6MnvgQJEAwkHxQVIjsxG9DovRIjxyW4ycx3aSsRg/f2VKyWoLvY 7ZT7CbLFE+I/MQh2ZgUu/9pnCDQVR2anss2WYIej5mmgFL5pyEv3YvYgKYVyK08z sXyNxpP976g2d9ECJ9OtFJV9we6mlqxlG0MVCiv/Uxh7DBjxWWPsLvlmLAXggQ03 +0GW+nnutDaKz83pgS7Z4zum/+Oa+I1dTLIN27pARUNcMCYip7njM2KNpJwPdov3 +fAIODH2JVX1xewT+U1cCq6gdI55ejbwdQYGFV075dKBUxKQeIyrghvfC3Ga6aKQ Gw3y68jdrXOw6iyfHR5k/0Mnu2/FDKUW2fZxLKm55PvNZP5jQFmSlz9wyiwwyb3m UUSgThj6Ozodxks8hDX41rGVezCcm1ni+qNSiNIs8HPaaZQrwbnvKHQFBBJHQzJP rJ39VWBx3Hq/ly71BOR6pCzoZsfS1f85YKhJ4vsfjLO6BfhI16nBat89eROSRKcz XptyWqW0PgAD0teDuMCTPNuUym/viBHALXHKuSO12CIizacvftiGcmaQNPlLiiFZ /Dr2+aOhwYw3UD6djn3u94M9 =nWGh -----END PGP SIGNATURE----- Merge tag 'kthread-for-7.0' of git://git.kernel.org/pub/scm/linux/kernel/git/frederic/linux-dynticks Pull kthread updates from Frederic Weisbecker: "The kthread code provides an infrastructure which manages the preferred affinity of unbound kthreads (node or custom cpumask) against housekeeping (CPU isolation) constraints and CPU hotplug events. One crucial missing piece is the handling of cpuset: when an isolated partition is created, deleted, or its CPUs updated, all the unbound kthreads in the top cpuset become indifferently affine to _all_ the non-isolated CPUs, possibly breaking their preferred affinity along the way. Solve this with performing the kthreads affinity update from cpuset to the kthreads consolidated relevant code instead so that preferred affinities are honoured and applied against the updated cpuset isolated partitions. The dispatch of the new isolated cpumasks to timers, workqueues and kthreads is performed by housekeeping, as per the nice Tejun's suggestion. As a welcome side effect, HK_TYPE_DOMAIN then integrates both the set from boot defined domain isolation (through isolcpus=) and cpuset isolated partitions. Housekeeping cpumasks are now modifiable with a specific RCU based synchronization. A big step toward making nohz_full= also mutable through cpuset in the future" * tag 'kthread-for-7.0' of git://git.kernel.org/pub/scm/linux/kernel/git/frederic/linux-dynticks: (33 commits) doc: Add housekeeping documentation kthread: Document kthread_affine_preferred() kthread: Comment on the purpose and placement of kthread_affine_node() call kthread: Honour kthreads preferred affinity after cpuset changes sched/arm64: Move fallback task cpumask to HK_TYPE_DOMAIN sched: Switch the fallback task allowed cpumask to HK_TYPE_DOMAIN kthread: Rely on HK_TYPE_DOMAIN for preferred affinity management kthread: Include kthreadd to the managed affinity list kthread: Include unbound kthreads in the managed affinity list kthread: Refine naming of affinity related fields PCI: Remove superfluous HK_TYPE_WQ check sched/isolation: Remove HK_TYPE_TICK test from cpu_is_isolated() cpuset: Remove cpuset_cpu_is_isolated() timers/migration: Remove superfluous cpuset isolation test cpuset: Propagate cpuset isolation update to timers through housekeeping cpuset: Propagate cpuset isolation update to workqueue through housekeeping PCI: Flush PCI probe workqueue on cpuset isolated partition change sched/isolation: Flush vmstat workqueues on cpuset isolated partition change sched/isolation: Flush memcg workqueues on cpuset isolated partition change cpuset: Update HK_TYPE_DOMAIN cpumask from cpuset ... |
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Linus Torvalds
|
0506158ac7 |
Thermal control updates for 6.20-rc1/7.0-rc1
- Add Panther Lake, Wildcat Lake and Nova Lake processor IDs to the
list of supported processors in the intel_tcc_cooling thermal
driver (Srinivas Pandruvada)
- Drop unnecessary explicit driver data clearing on removal from the
intel_pch_thermal driver (Kaushlendra Kumar)
- Add support for "slow" workload type hints to the int340x
processor_thermal driver and enable it on the Panther Lake
platform (Srinivas Pandruvada)
- Use sysfs_emit{_at}() in sysfs show functions in Intel thermal
drivers (Thorsten Blum)
- Update the x86_pkg_temp_thermal driver to handle THERMAL_TEMP_INVALID
that can be passed to it via sysfs as expected (Rafael Wysocki)
- Drop a redundant local variable from the intel_tcc_cooling thermal
driver and fix a kerneldoc comment typo in the TCC library (Sumeet
Pawnikar)
- Fix CFLAGS and LDFLAGS in the pkg-config libthermal template (Romain
Gantois)
- Support multiple temp to raw conversion functions in the Mediatek
LVTS thermal driver and add MT8196 and MT6991 support to it (Laura
Nao)
- Add Mediatek LVTS driver support for MT7987 (Frank Wunderlich)
- Use the existing HZ_PER_MHZ macro on STM32 (Andy Shevchenko)
- Use the existing clamp() macro on BCM2835 (Thorsten Blum)
- Make the reset line optional in order to support new Renesas SoCs
where it is not available and add support for RZ/T2H and RZ/N2H
to the rzg3e thermal driver (Cosmin Tanislav)
- Document RZ/V2N TSU in the r9a09g047-tsu DT bindings (Ovidiu
Panait)
- Fix all kernel-doc warnings in the internal thermal core header
file (Randy Dunlap)
- Fix a device node reference leak in thermal_of_cm_lookup() (Felix Gu)
- Replace some old-style library function calls with ones that are
currently recommended in several places in the thermal core and
debugfs code (Sumeet Pawnikar, Thorsten Blum)
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Merge tag 'thermal-6.20-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull thermal control updates from Rafael Wysocki:
"These add support for "slow" (long-term trend) workload type hints to
the Intel int340x thermal driver and selftests (and enable it for
Panther Lake), add support for MT8196 along with DT bindings and for
MT7987 to the Mediatek LVTS thermal driver, add support for RZ/T2H and
RZ/N2H along with DT bindings to the Renesas rzg3e thermal driver, add
support for the Panther Lake, Wildcat Lake and Nova Lake processors to
the intel_tcc_cooling driver, fix bugs, make some cosmetic changes
including code cleanups and library function substitutions, and update
documentation.
Specifics:
- Add Panther Lake, Wildcat Lake and Nova Lake processor IDs to the
list of supported processors in the intel_tcc_cooling thermal
driver (Srinivas Pandruvada)
- Drop unnecessary explicit driver data clearing on removal from the
intel_pch_thermal driver (Kaushlendra Kumar)
- Add support for "slow" workload type hints to the int340x
processor_thermal driver and enable it on the Panther Lake platform
(Srinivas Pandruvada)
- Use sysfs_emit{_at}() in sysfs show functions in Intel thermal
drivers (Thorsten Blum)
- Update the x86_pkg_temp_thermal driver to handle
THERMAL_TEMP_INVALID that can be passed to it via sysfs as expected
(Rafael Wysocki)
- Drop a redundant local variable from the intel_tcc_cooling thermal
driver and fix a kerneldoc comment typo in the TCC library (Sumeet
Pawnikar)
- Fix CFLAGS and LDFLAGS in the pkg-config libthermal template
(Romain Gantois)
- Support multiple temp to raw conversion functions in the Mediatek
LVTS thermal driver and add MT8196 and MT6991 support to it (Laura
Nao)
- Add Mediatek LVTS driver support for MT7987 (Frank Wunderlich)
- Use the existing HZ_PER_MHZ macro on STM32 (Andy Shevchenko)
- Use the existing clamp() macro on BCM2835 (Thorsten Blum)
- Make the reset line optional in order to support new Renesas SoCs
where it is not available and add support for RZ/T2H and RZ/N2H to
the rzg3e thermal driver (Cosmin Tanislav)
- Document RZ/V2N TSU in the r9a09g047-tsu DT bindings (Ovidiu
Panait)
- Fix all kernel-doc warnings in the internal thermal core header
file (Randy Dunlap)
- Fix a device node reference leak in thermal_of_cm_lookup() (Felix
Gu)
- Replace some old-style library function calls with ones that are
currently recommended in several places in the thermal core and
debugfs code (Sumeet Pawnikar, Thorsten Blum)
* tag 'thermal-6.20-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (34 commits)
drivers: thermal: intel: tcc_cooling: Drop redundant local variable
thermal/of: Fix reference leak in thermal_of_cm_lookup()
thermal: core: thermal_core.h: fix all kernel-doc warnings
thermal: intel: x86_pkg_temp_thermal: Handle invalid temperature
thermal: renesas: rzg3e: add support for RZ/T2H and RZ/N2H
dt-bindings: thermal: r9a09g047-tsu: document RZ/T2H and RZ/N2H
thermal: renesas: rzg3e: make calibration value retrieval per-chip
thermal: renesas: rzg3e: make min and max temperature per-chip
thermal: renesas: rzg3e: make reset optional
dt-bindings: thermal: r9a09g047-tsu: Document RZ/V2N TSU
thermal/drivers/broadcom: Use clamp to simplify bcm2835_thermal_temp2adc
thermal/drivers/stm32: Use predefined HZ_PER_MHZ instead of a custom one
thermal/drivers/mediatek/lvts_thermal: Add mt7987 support
dt-bindings: thermal: mediatek: Add LVTS thermal controller definition for MT7987
dt-bindings: nvmem: mediatek: efuse: Add support for MT8196
thermal/drivers/mediatek/lvts_thermal: Add MT8196 support
thermal/drivers/mediatek/lvts: Support MSR offset for 16-bit calibration data
thermal/drivers/mediatek/lvts: Add support for ATP mode
thermal/drivers/mediatek/lvts: Add lvts_temp_to_raw variant
thermal/drivers/mediatek/lvts: Add platform ops to support alternative conversion logic
...
|
||
Yang Xiuwei
|
daa0b901f8 |
io_uring/tctx: avoid modifying loop variable in io_ring_add_registered_file
Use a separate 'idx' variable to store the result of array_index_nospec() instead of modifying the loop variable 'offset' directly. This improves code clarity by separating the logical index from the sanitized index used for array access. No functional change intended. Signed-off-by: Yang Xiuwei <yangxiuwei@kylinos.cn> Signed-off-by: Jens Axboe <axboe@kernel.dk> |
||
Caleb Sander Mateos
|
7cb3a68376 |
io_uring: simplify IORING_SETUP_DEFER_TASKRUN && !SQPOLL check
io_uring_sanitise_params() already rejects flags that include both IORING_SETUP_SQPOLL and IORING_SETUP_DEFER_TASKRUN. So it's unnecessary to check IORING_SETUP_SQPOLL in io_uring_create() when IORING_SETUP_DEFER_TASKRUN has already been checked. Drop the !(ctx->flags & IORING_SETUP_SQPOLL) check for the task_complete case. Signed-off-by: Caleb Sander Mateos <csander@purestorage.com> Signed-off-by: Jens Axboe <axboe@kernel.dk> |
||
Frank Li
|
55d43aab47 |
dt-bindings: soc: imx: add fsl,aips and fsl,emi compatible strings
Add the fsl,aips and fsl,emi compatible strings for legacy i.MX3 SoCs (over 15 years old). Signed-off-by: Frank Li <Frank.Li@nxp.com> Link: https://patch.msgid.link/20260201011913.2419626-1-Frank.Li@nxp.com Signed-off-by: Rob Herring (Arm) <robh@kernel.org> |
||
Dominik Haller
|
eb83cb5109 |
dt-bindings: display: bridge: lt8912b: Drop reset gpio requirement
Drop the gpio reset from the list of required properties. The bridge works fine with a reset not managed by Linux. In the driver itself the gpio is already flagged as optional. Signed-off-by: Dominik Haller <d.haller@phytec.de> Link: https://patch.msgid.link/20260130205820.83189-6-d.haller@phytec.de Signed-off-by: Rob Herring (Arm) <robh@kernel.org> |
||
|
Linus Torvalds
|
9b1b3dcd28 |
Power management updates for 6.20-rc1/7.0-rc1
- Remove the unused omap-cpufreq driver (Andreas Kemnade)
- Optimize error handling code in cpufreq_boost_trigger_state() and
make cpufreq_boost_trigger_state() return -EOPNOTSUPP if no policy
supports boost (Lifeng Zheng)
- Update cpufreq-dt-platdev list for tegra, qcom, TI (Aaron Kling,
Dhruva Gole, and Konrad Dybcio)
- Minor improvements to the cpufreq and cpumask rust implementation
(Alexandre Courbot, Alice Ryhl, Tamir Duberstein, and Yilin Chen)
- Add support for AM62L3 SoC to the ti-cpufreq driver (Dhruva Gole)
- Update arch_freq_scale in the CPPC cpufreq driver's frequency
invariance engine (FIE) in scheduler ticks if the related CPPC
registers are not in PCC (Jie Zhan)
- Assorted minor cleanups and improvements in ARM cpufreq drivers (Juan
Martinez, Felix Gu, Luca Weiss, and Sergey Shtylyov)
- Add generic helpers for sysfs show/store to cppc_cpufreq (Sumit
Gupta)
- Make the scaling_setspeed cpufreq sysfs attribute return the actual
requested frequency to avoid confusion (Pengjie Zhang)
- Simplify the idle CPU time granularity test in the ondemand cpufreq
governor (Frederic Weisbecker)
- Enable asym capacity in intel_pstate only when CPU SMT is not
possible (Yaxiong Tian)
- Update the description of rate_limit_us default value in cpufreq
documentation (Yaxiong Tian)
- Add a command line option to adjust the C-states table in the
intel_idle driver, remove the 'preferred_cstates' module parameter
from it, add C-states validation to it and clean it up (Artem
Bityutskiy)
- Make the menu cpuidle governor always check the time till the closest
timer event when the scheduler tick has been stopped to prevent it
from mistakenly selecting the deepest available idle state (Rafael
Wysocki)
- Update the teo cpuidle governor to avoid making suboptimal decisions
in certain corner cases and generally improve idle state selection
accuracy (Rafael Wysocki)
- Remove an unlikely() annotation on the early-return condition in
menu_select() that leads to branch misprediction 100% of the time
on systems with only 1 idle state enabled, like ARM64 servers (Breno
Leitao)
- Add Christian Loehle to MAINTAINERS as a cpuidle reviewer (Christian
Loehle)
- Stop flagging the PM runtime workqueue as freezable to avoid system
suspend and resume deadlocks in subsystems that assume asynchronous
runtime PM to work during system-wide PM transitions (Rafael Wysocki)
- Drop redundant NULL pointer checks before acomp_request_free() from
the hibernation code handling image saving (Rafael Wysocki)
- Update wakeup_sources_walk_start() to handle empty lists of wakeup
sources as appropriate (Samuel Wu)
- Make dev_pm_clear_wake_irq() check the power.wakeirq value under
power.lock to avoid race conditions (Gui-Dong Han)
- Avoid bit field races related to power.work_in_progress in the core
device suspend code (Xuewen Yan)
- Make several drivers discard pm_runtime_put() return value in
preparation for converting that function to a void one (Rafael
Wysocki)
- Add PL4 support for Ice Lake to the Intel RAPL power capping
driver (Daniel Tang)
- Replace sprintf() with sysfs_emit() in power capping sysfs show
functions (Sumeet Pawnikar)
- Make dev_pm_opp_get_level() return value match the documentation
after a previous update of the latter (Aleks Todorov)
- Use scoped for each OF child loop in the OPP code (Krzysztof
Kozlowski)
- Fix a bug in an example code snippet and correct typos in the energy
model management documentation (Patrick Little)
- Fix miscellaneous problems in cpupower (Kaushlendra Kumar):
* idle_monitor: Fix incorrect value logged after stop
* Fix inverted APERF capability check
* Use strcspn() to strip trailing newline
* Reset errno before strtoull()
* Show C0 in idle-info dump
- Improve cpupower installation procedure by making the systemd step
optional and allowing users to disable the installation of systemd's
unit file (João Marcos Costa)
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Merge tag 'pm-6.20-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull power management updates from Rafael Wysocki:
"By the number of commits, cpufreq is the leading party (again) and the
most visible change there is the removal of the omap-cpufreq driver
that has not been used for a long time (good riddance). There are also
quite a few changes in the cppc_cpufreq driver, mostly related to
fixing its frequency invariance engine in the case when the CPPC
registers used by it are not in PCC. In addition to that, support for
AM62L3 is added to the ti-cpufreq driver and the cpufreq-dt-platdev
list is updated for some platforms. The remaining cpufreq changes are
assorted fixes and cleanups.
Next up is cpuidle and the changes there are dominated by intel_idle
driver updates, mostly related to the new command line facility
allowing users to adjust the list of C-states used by the driver.
There are also a few updates of cpuidle governors, including two menu
governor fixes and some refinements of the teo governor, and a
MAINTAINERS update adding Christian Loehle as a cpuidle reviewer.
[Thanks for stepping up Christian!]
The most significant update related to system suspend and hibernation
is the one to stop freezing the PM runtime workqueue during system PM
transitions which allows some deadlocks to be avoided. There is also a
fix for possible concurrent bit field updates in the core device
suspend code and a few other minor fixes.
Apart from the above, several drivers are updated to discard the
return value of pm_runtime_put() which is going to be converted to a
void function as soon as everybody stops using its return value, PL4
support for Ice Lake is added to the Intel RAPL power capping driver,
and there are assorted cleanups, documentation fixes, and some
cpupower utility improvements.
Specifics:
- Remove the unused omap-cpufreq driver (Andreas Kemnade)
- Optimize error handling code in cpufreq_boost_trigger_state() and
make cpufreq_boost_trigger_state() return -EOPNOTSUPP if no policy
supports boost (Lifeng Zheng)
- Update cpufreq-dt-platdev list for tegra, qcom, TI (Aaron Kling,
Dhruva Gole, and Konrad Dybcio)
- Minor improvements to the cpufreq and cpumask rust implementation
(Alexandre Courbot, Alice Ryhl, Tamir Duberstein, and Yilin Chen)
- Add support for AM62L3 SoC to the ti-cpufreq driver (Dhruva Gole)
- Update arch_freq_scale in the CPPC cpufreq driver's frequency
invariance engine (FIE) in scheduler ticks if the related CPPC
registers are not in PCC (Jie Zhan)
- Assorted minor cleanups and improvements in ARM cpufreq drivers
(Juan Martinez, Felix Gu, Luca Weiss, and Sergey Shtylyov)
- Add generic helpers for sysfs show/store to cppc_cpufreq (Sumit
Gupta)
- Make the scaling_setspeed cpufreq sysfs attribute return the actual
requested frequency to avoid confusion (Pengjie Zhang)
- Simplify the idle CPU time granularity test in the ondemand cpufreq
governor (Frederic Weisbecker)
- Enable asym capacity in intel_pstate only when CPU SMT is not
possible (Yaxiong Tian)
- Update the description of rate_limit_us default value in cpufreq
documentation (Yaxiong Tian)
- Add a command line option to adjust the C-states table in the
intel_idle driver, remove the 'preferred_cstates' module parameter
from it, add C-states validation to it and clean it up (Artem
Bityutskiy)
- Make the menu cpuidle governor always check the time till the
closest timer event when the scheduler tick has been stopped to
prevent it from mistakenly selecting the deepest available idle
state (Rafael Wysocki)
- Update the teo cpuidle governor to avoid making suboptimal
decisions in certain corner cases and generally improve idle state
selection accuracy (Rafael Wysocki)
- Remove an unlikely() annotation on the early-return condition in
menu_select() that leads to branch misprediction 100% of the time
on systems with only 1 idle state enabled, like ARM64 servers
(Breno Leitao)
- Add Christian Loehle to MAINTAINERS as a cpuidle reviewer
(Christian Loehle)
- Stop flagging the PM runtime workqueue as freezable to avoid system
suspend and resume deadlocks in subsystems that assume asynchronous
runtime PM to work during system-wide PM transitions (Rafael
Wysocki)
- Drop redundant NULL pointer checks before acomp_request_free() from
the hibernation code handling image saving (Rafael Wysocki)
- Update wakeup_sources_walk_start() to handle empty lists of wakeup
sources as appropriate (Samuel Wu)
- Make dev_pm_clear_wake_irq() check the power.wakeirq value under
power.lock to avoid race conditions (Gui-Dong Han)
- Avoid bit field races related to power.work_in_progress in the core
device suspend code (Xuewen Yan)
- Make several drivers discard pm_runtime_put() return value in
preparation for converting that function to a void one (Rafael
Wysocki)
- Add PL4 support for Ice Lake to the Intel RAPL power capping driver
(Daniel Tang)
- Replace sprintf() with sysfs_emit() in power capping sysfs show
functions (Sumeet Pawnikar)
- Make dev_pm_opp_get_level() return value match the documentation
after a previous update of the latter (Aleks Todorov)
- Use scoped for each OF child loop in the OPP code (Krzysztof
Kozlowski)
- Fix a bug in an example code snippet and correct typos in the
energy model management documentation (Patrick Little)
- Fix miscellaneous problems in cpupower (Kaushlendra Kumar):
* idle_monitor: Fix incorrect value logged after stop
* Fix inverted APERF capability check
* Use strcspn() to strip trailing newline
* Reset errno before strtoull()
* Show C0 in idle-info dump
- Improve cpupower installation procedure by making the systemd step
optional and allowing users to disable the installation of
systemd's unit file (João Marcos Costa)"
* tag 'pm-6.20-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (65 commits)
PM: sleep: core: Avoid bit field races related to work_in_progress
PM: sleep: wakeirq: harden dev_pm_clear_wake_irq() against races
cpufreq: Documentation: Update description of rate_limit_us default value
cpufreq: intel_pstate: Enable asym capacity only when CPU SMT is not possible
PM: wakeup: Handle empty list in wakeup_sources_walk_start()
PM: EM: Documentation: Fix bug in example code snippet
Documentation: Fix typos in energy model documentation
cpuidle: governors: teo: Refine intercepts-based idle state lookup
cpuidle: governors: teo: Adjust the classification of wakeup events
cpufreq: ondemand: Simplify idle cputime granularity test
cpufreq: userspace: make scaling_setspeed return the actual requested frequency
PM: hibernate: Drop NULL pointer checks before acomp_request_free()
cpufreq: CPPC: Add generic helpers for sysfs show/store
cpufreq: scmi: Fix device_node reference leak in scmi_cpu_domain_id()
cpufreq: ti-cpufreq: add support for AM62L3 SoC
cpufreq: dt-platdev: Add ti,am62l3 to blocklist
cpufreq/amd-pstate: Add comment explaining nominal_perf usage for performance policy
cpufreq: scmi: correct SCMI explanation
cpufreq: dt-platdev: Block the driver from probing on more QC platforms
rust: cpumask: rename methods of Cpumask for clarity and consistency
...
|
||
|
Linus Torvalds
|
d84e173311 |
ACPI support updates for 6.20-rc1/7.0-rc1
- Update the ACPICA code in the kernel to upstream version 20251212
which includes the following changes:
* Add support for new ACPI table DTPR (Michal Camacho Romero)
* Release objects with acpi_ut_delete_object_desc() (Zilin Guan)
* Add UUIDs for Microsoft fan extensions and UUIDs associated with
TPM 2.0 devices (Armin Wolf)
* Fix NULL pointer dereference in acpi_ev_address_space_dispatch()
(Alexey Simakov)
* Add KEYP ACPI table definition (Dave Jiang)
* Add support for the Microsoft display mux _OSI string (Armin Wolf)
* Add definitions for the IOVT ACPI table (Xianglai Li)
* Abort AML bytecode execution on AML_FATAL_OP (Armin Wolf)
* Include all fields in subtable type1 for PPTT (Ben Horgan)
* Add GICv5 MADT structures and Arm IORT IWB node definitions (Jose
Marinho)
* Update Parameter Block structure for RAS2 and add a new flag in
Memory Affinity Structure for SRAT (Pawel Chmielewski)
* Add _VDM (Voltage Domain) object (Pawel Chmielewski)
- Add support for GICv5 ACPI probing on ARM which is based on the
GICv5 MADT structures and ARM IORT IWB node definitions recently
added to ACPICA (Lorenzo Pieralisi)
- Rework ACPI PM notification setup for PCI root buses and modify the
ACPI PM setup for devices to register wakeup source objects under
physical (that is, PCI, platform, etc.) devices instead of doing that
under their ACPI companions (Rafael Wysocki)
- Adjust debug messages regarding postponed ACPI PM printed during
system resume to be more accurate (Rafael Wysocki)
- Remove dead code from lps0_device_attach() (Gergo Koteles)
- Start to invoke Microsoft Function 9 (Turn On Display) of the Low-
Power S0 Idle (LPS0) _DSM in the suspend-to-idle resume flow on
systems with ACPI LPS0 support to address a functional issue on
Lenovo Yoga Slim 7i Aura (15ILL9), where system fans and keyboard
backlights fail to resume after suspend (Jakob Riemenschneider)
- Add sysfs attribute cid for exposing _CID lists under ACPI device
objects (Rafael Wysocki)
- Replace sprintf() with sysfs_emit() in all of the core ACPI sysfs
interface code (Sumeet Pawnikar)
- Use acpi_get_local_u64_address() in the code implementing ACPI
support for PCI to evaluate _ADR instead of evaluating that object
directly (Andy Shevchenko)
- Add JWIPC JVC9100 to irq1_level_low_skip_override[] to unbreak
serial IRQs on that system (Ai Chao)
- Fix handling of _OSC errors in acpi_run_osc() to avoid failures on
systems where _OSC error bits are set even though the _OSC return
buffer contains acknowledged feature bits (Rafael Wysocki)
- Clean up and rearrange \_SB._OSC handling for general platform
features and USB4 features to avoid code duplication and unnecessary
memory management overhead (Rafael Wysocki)
- Make the ACPI core device enumeration code handle PNP0C01 and PNP0C02
("system resource") device objects directly instead of letting the
legacy PNP system driver handle them to avoid device enumeration
issues on systems where PNP0C02 is present in the _CID list under
ACPI device objects with a _HID matching a proper device driver in
Linux (Rafael Wysocki)
- Drop workarounds for the known device enumeration issues related to
_CID lists containing PNP0C02 (Rafael Wysocki)
- Drop outdated comment regarding removed function in the ACPI-based
device enumeration code (Julia Lawall)
- Make PRP0001 device matching work as expected for ACPI device objects
using it as a _HID for board development and similar purposes (Kartik
Rajput)
- Use async schedule function in acpi_scan_clear_dep_fn() to avoid
races with user space initialization on some systems (Yicong Yang)
- Add a piece of documentation explaining why binding drivers directly
to ACPI device objects is not a good idea in general and why it is
desirable to convert drivers doing so into proper platform drivers
that use struct platform_driver for device binding (Rafael Wysocki)
- Convert multiple "core ACPI" drivers, including the NFIT ACPI device
driver, the generic ACPI button drivers, the generic ACPI thermal
zone driver, the ACPI hardware event device (HED) driver, the ACPI EC
driver, the ACPI SMBUS HC driver, the ACPI Smart Battery Subsystem
(SBS) driver, and the ACPI backlight (video) driver to proper platform
drivers that use struct platform_driver for device binding (Rafael
Wysocki)
- Use acpi_get_local_u64_address() in the ACPI backlight (video) driver
to evaluate _ADR instead of evaluating that object directly (Andy
Shevchenko)
- Convert the generic ACPI battery driver to a proper platform driver
using struct platform_driver for device binding (Rafael Wysocki)
- Fix incorrect charging status when current is zero in the generic
ACPI battery driver (Ata İlhan Köktürk)
- Use LIST_HEAD() for initializing a stack-allocated list in the
generic ACPI watchdog device driver (Can Peng)
- Rework the ACPI idle driver initialization to register it directly
from the common initialization code instead of doing that from a
CPU hotplug "online" callback and clean it up (Huisong Li, Rafael
Wysocki)
- Fix a possible NULL pointer dereference in
acpi_processor_errata_piix4() (Tuo Li)
- Make read-only array non_mmio_desc[] static const (Colin Ian King)
- Prevent the APEI GHES support code on ARM from accessing memory out
of bounds or going past the ARM processor CPER record buffer (Mauro
Carvalho Chehab)
- Prevent cper_print_fw_err() from dumping the entire memory on systems
with defective firmware (Mauro Carvalho Chehab)
- Improve ghes_notify_nmi() status check to avoid unnecessary overhead
in the NMI handler by carrying out all of the requisite preparations
and the NMI registration time (Tony Luck)
- Refactor the GHES driver by extracting common functionality into
reusable helper functions to reduce code duplication and improve
the ghes_notify_sea() status check in analogy with the previous
ghes_notify_nmi() status check improvement (Shuai Xue)
- Make ELOG and GHES log and trace consistently and support the CPER
CXL protocol analogously (Fabio De Francesco)
- Disable KASAN instrumentation in the APEI GHES driver when compile
testing with clang < 18 (Nathan Chancellor)
- Let ghes_edac be the preferred driver to load on __ZX__ and _BYO_
systems by extending the platform detection list in the APEI GHES
driver (Tony W Wang-oc)
- Clean up cppc_perf_caps and cppc_perf_ctrls structs and rename EPP
constants for clarity in the ACPI CPPC library (Sumit Gupta)
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Merge tag 'acpi-6.20-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull ACPI updates from Rafael Wysocki:
"This one is significantly larger than previous ACPI support pull
requests because several significant updates have coincided in it.
First, there is a routine ACPICA code update, to upstream version
20251212, but this time it covers new ACPI 6.6 material that has not
been covered yet. Among other things, it includes definitions of a few
new ACPI tables and updates of some others, like the GICv5 MADT
structures and ARM IORT IWB node definitions that are used for adding
GICv5 ACPI probing on ARM (that technically is IRQ subsystem material,
but it depends on the ACPICA changes, so it is included here). The
latter alone adds a few hundred lines of new code.
Second, there is an update of ACPI _OSC handling including a fix that
prevents failures from occurring in some corner cases due to careless
handling of _OSC error bits.
On top of that, the "system resource" ACPI device objects with the
PNP0C01 and PNP0C02 are now going to be handled by the ACPI core
device enumeration code instead of handing them over to the legacy PNP
system driver which causes device enumeration issues to occur. Some of
those issues have been worked around in device drivers and elsewhere
and those workarounds should not be necessary any more, so they are
going away.
Moreover, the time has come to convert all "core ACPI" device drivers
that were still using struct acpi_driver objects for device binding
into proper platform drivers that use struct platform_driver for this
purpose. These updates are accompanied by some requisite core ACPI
device enumeration code changes.
Next, there are ACPI APEI updates, including changes to avoid excess
overhead in the NMI handler and in SEA on the ARM side, changes to
unify ACPI-based HW error tracing and logging, and changes to prevent
APEI code from reaching out of its allocated memory.
There are also some ACPI power management updates, mostly related to
the ACPI cpuidle support in the processor driver, suspend-to-idle
handling on systems with ACPI support and to ACPI PM of devices.
In addition to the above, bugs are fixed and the code is cleaned up in
assorted places all over.
Specifics:
- Update the ACPICA code in the kernel to upstream version 20251212
which includes the following changes:
* Add support for new ACPI table DTPR (Michal Camacho Romero)
* Release objects with acpi_ut_delete_object_desc() (Zilin Guan)
* Add UUIDs for Microsoft fan extensions and UUIDs associated with
TPM 2.0 devices (Armin Wolf)
* Fix NULL pointer dereference in acpi_ev_address_space_dispatch()
(Alexey Simakov)
* Add KEYP ACPI table definition (Dave Jiang)
* Add support for the Microsoft display mux _OSI string (Armin
Wolf)
* Add definitions for the IOVT ACPI table (Xianglai Li)
* Abort AML bytecode execution on AML_FATAL_OP (Armin Wolf)
* Include all fields in subtable type1 for PPTT (Ben Horgan)
* Add GICv5 MADT structures and Arm IORT IWB node definitions
(Jose Marinho)
* Update Parameter Block structure for RAS2 and add a new flag in
Memory Affinity Structure for SRAT (Pawel Chmielewski)
* Add _VDM (Voltage Domain) object (Pawel Chmielewski)
- Add support for GICv5 ACPI probing on ARM which is based on the
GICv5 MADT structures and ARM IORT IWB node definitions recently
added to ACPICA (Lorenzo Pieralisi)
- Rework ACPI PM notification setup for PCI root buses and modify the
ACPI PM setup for devices to register wakeup source objects under
physical (that is, PCI, platform, etc.) devices instead of doing
that under their ACPI companions (Rafael Wysocki)
- Adjust debug messages regarding postponed ACPI PM printed during
system resume to be more accurate (Rafael Wysocki)
- Remove dead code from lps0_device_attach() (Gergo Koteles)
- Start to invoke Microsoft Function 9 (Turn On Display) of the Low-
Power S0 Idle (LPS0) _DSM in the suspend-to-idle resume flow on
systems with ACPI LPS0 support to address a functional issue on
Lenovo Yoga Slim 7i Aura (15ILL9), where system fans and keyboard
backlights fail to resume after suspend (Jakob Riemenschneider)
- Add sysfs attribute cid for exposing _CID lists under ACPI device
objects (Rafael Wysocki)
- Replace sprintf() with sysfs_emit() in all of the core ACPI sysfs
interface code (Sumeet Pawnikar)
- Use acpi_get_local_u64_address() in the code implementing ACPI
support for PCI to evaluate _ADR instead of evaluating that object
directly (Andy Shevchenko)
- Add JWIPC JVC9100 to irq1_level_low_skip_override[] to unbreak
serial IRQs on that system (Ai Chao)
- Fix handling of _OSC errors in acpi_run_osc() to avoid failures on
systems where _OSC error bits are set even though the _OSC return
buffer contains acknowledged feature bits (Rafael Wysocki)
- Clean up and rearrange \_SB._OSC handling for general platform
features and USB4 features to avoid code duplication and
unnecessary memory management overhead (Rafael Wysocki)
- Make the ACPI core device enumeration code handle PNP0C01 and
PNP0C02 ("system resource") device objects directly instead of
letting the legacy PNP system driver handle them to avoid device
enumeration issues on systems where PNP0C02 is present in the _CID
list under ACPI device objects with a _HID matching a proper device
driver in Linux (Rafael Wysocki)
- Drop workarounds for the known device enumeration issues related to
_CID lists containing PNP0C02 (Rafael Wysocki)
- Drop outdated comment regarding removed function in the ACPI-based
device enumeration code (Julia Lawall)
- Make PRP0001 device matching work as expected for ACPI device
objects using it as a _HID for board development and similar
purposes (Kartik Rajput)
- Use async schedule function in acpi_scan_clear_dep_fn() to avoid
races with user space initialization on some systems (Yicong Yang)
- Add a piece of documentation explaining why binding drivers
directly to ACPI device objects is not a good idea in general and
why it is desirable to convert drivers doing so into proper
platform drivers that use struct platform_driver for device binding
(Rafael Wysocki)
- Convert multiple "core ACPI" drivers, including the NFIT ACPI
device driver, the generic ACPI button drivers, the generic ACPI
thermal zone driver, the ACPI hardware event device (HED) driver,
the ACPI EC driver, the ACPI SMBUS HC driver, the ACPI Smart
Battery Subsystem (SBS) driver, and the ACPI backlight (video)
driver to proper platform drivers that use struct platform_driver
for device binding (Rafael Wysocki)
- Use acpi_get_local_u64_address() in the ACPI backlight (video)
driver to evaluate _ADR instead of evaluating that object directly
(Andy Shevchenko)
- Convert the generic ACPI battery driver to a proper platform driver
using struct platform_driver for device binding (Rafael Wysocki)
- Fix incorrect charging status when current is zero in the generic
ACPI battery driver (Ata İlhan Köktürk)
- Use LIST_HEAD() for initializing a stack-allocated list in the
generic ACPI watchdog device driver (Can Peng)
- Rework the ACPI idle driver initialization to register it directly
from the common initialization code instead of doing that from a
CPU hotplug "online" callback and clean it up (Huisong Li, Rafael
Wysocki)
- Fix a possible NULL pointer dereference in
acpi_processor_errata_piix4() (Tuo Li)
- Make read-only array non_mmio_desc[] static const (Colin Ian King)
- Prevent the APEI GHES support code on ARM from accessing memory out
of bounds or going past the ARM processor CPER record buffer (Mauro
Carvalho Chehab)
- Prevent cper_print_fw_err() from dumping the entire memory on
systems with defective firmware (Mauro Carvalho Chehab)
- Improve ghes_notify_nmi() status check to avoid unnecessary
overhead in the NMI handler by carrying out all of the requisite
preparations and the NMI registration time (Tony Luck)
- Refactor the GHES driver by extracting common functionality into
reusable helper functions to reduce code duplication and improve
the ghes_notify_sea() status check in analogy with the previous
ghes_notify_nmi() status check improvement (Shuai Xue)
- Make ELOG and GHES log and trace consistently and support the CPER
CXL protocol analogously (Fabio De Francesco)
- Disable KASAN instrumentation in the APEI GHES driver when compile
testing with clang < 18 (Nathan Chancellor)
- Let ghes_edac be the preferred driver to load on __ZX__ and _BYO_
systems by extending the platform detection list in the APEI GHES
driver (Tony W Wang-oc)
- Clean up cppc_perf_caps and cppc_perf_ctrls structs and rename EPP
constants for clarity in the ACPI CPPC library (Sumit Gupta)"
* tag 'acpi-6.20-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (117 commits)
ACPI: battery: fix incorrect charging status when current is zero
ACPI: scan: Use async schedule function in acpi_scan_clear_dep_fn()
ACPI: x86: s2idle: Invoke Microsoft _DSM Function 9 (Turn On Display)
ACPI: APEI: GHES: Add ghes_edac support for __ZX__ and _BYO_ systems
ACPI: APEI: GHES: Disable KASAN instrumentation when compile testing with clang < 18
ACPI: sysfs: Replace sprintf() with sysfs_emit()
ACPI: CPPC: Rename EPP constants for clarity
ACPI: CPPC: Clean up cppc_perf_caps and cppc_perf_ctrls structs
ACPI: processor: idle: Rework the handling of acpi_processor_ffh_lpi_probe()
ACPI: processor: idle: Convert acpi_processor_setup_cpuidle_dev() to void
ACPI: processor: idle: Convert acpi_processor_setup_cpuidle_states() to void
irqchip/gic-v5: Add ACPI IWB probing
irqchip/gic-v5: Add ACPI ITS probing
irqchip/gic-v5: Add ACPI IRS probing
irqchip/gic-v5: Split IRS probing into OF and generic portions
PCI/MSI: Make the pci_msi_map_rid_ctlr_node() interface firmware agnostic
irqdomain: Add parent field to struct irqchip_fwid
ACPI: PCI: simplify code with acpi_get_local_u64_address()
ACPI: video: simplify code with acpi_get_local_u64_address()
ACPI: PM: Adjust messages regarding postponed ACPI PM
...
|
||
|
Linus Torvalds
|
4adc13ed7c |
for-7.0/block-stable-pages-20260206
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Merge tag 'for-7.0/block-stable-pages-20260206' of git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux
Pull bounce buffer dio for stable pages from Jens Axboe:
"This adds support for bounce buffering of dio for stable pages. This
was all done by Christoph. In his words:
This series tries to address the problem that under I/O pages can be
modified during direct I/O, even when the device or file system
require stable pages during I/O to calculate checksums, parity or data
operations. It does so by adding block layer helpers to bounce buffer
an iov_iter into a bio, then wires that up in iomap and ultimately
XFS.
The reason that the file system even needs to know about it, is
because reads need a user context to copy the data back, and the
infrastructure to defer ioends to a workqueue currently sits in XFS.
I'm going to look into moving that into ioend and enabling it for
other file systems. Additionally btrfs already has it's own
infrastructure for this, and actually an urgent need to bounce buffer,
so this should be useful there and could be wire up easily. In fact
the idea comes from patches by Qu that did this in btrfs.
This patch fixes all but one xfstests failures on T10 PI capable
devices (generic/095 seems to have issues with a mix of mmap and
splice still, I'm looking into that separately), and make qemu VMs
running Windows, or Linux with swap enabled fine on an XFS file on a
device using PI.
Performance numbers on my (not exactly state of the art) NVMe PI test
setup:
Sequential reads using io_uring, QD=16.
Bandwidth and CPU usage (usr/sys):
| size | zero copy | bounce |
+------+--------------------------+--------------------------+
| 4k | 1316MiB/s (12.65/55.40%) | 1081MiB/s (11.76/49.78%) |
| 64K | 3370MiB/s ( 5.46/18.20%) | 3365MiB/s ( 4.47/15.68%) |
| 1M | 3401MiB/s ( 0.76/23.05%) | 3400MiB/s ( 0.80/09.06%) |
+------+--------------------------+--------------------------+
Sequential writes using io_uring, QD=16.
Bandwidth and CPU usage (usr/sys):
| size | zero copy | bounce |
+------+--------------------------+--------------------------+
| 4k | 882MiB/s (11.83/33.88%) | 750MiB/s (10.53/34.08%) |
| 64K | 2009MiB/s ( 7.33/15.80%) | 2007MiB/s ( 7.47/24.71%) |
| 1M | 1992MiB/s ( 7.26/ 9.13%) | 1992MiB/s ( 9.21/19.11%) |
+------+--------------------------+--------------------------+
Note that the 64k read numbers look really odd to me for the baseline
zero copy case, but are reproducible over many repeated runs.
The bounce read numbers should further improve when moving the PI
validation to the file system and removing the double context switch,
which I have patches for that will sent out soon"
* tag 'for-7.0/block-stable-pages-20260206' of git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux:
xfs: use bounce buffering direct I/O when the device requires stable pages
iomap: add a flag to bounce buffer direct I/O
iomap: support ioends for direct reads
iomap: rename IOMAP_DIO_DIRTY to IOMAP_DIO_USER_BACKED
iomap: free the bio before completing the dio
iomap: share code between iomap_dio_bio_end_io and iomap_finish_ioend_direct
iomap: split out the per-bio logic from iomap_dio_bio_iter
iomap: simplify iomap_dio_bio_iter
iomap: fix submission side handling of completion side errors
block: add helpers to bounce buffer an iov_iter into bios
block: remove bio_release_page
iov_iter: extract a iov_iter_extract_bvecs helper from bio code
block: open code bio_add_page and fix handling of mismatching P2P ranges
block: refactor get_contig_folio_len
block: add a BIO_MAX_SIZE constant and use it
|
||
|
Linus Torvalds
|
0c00ed308d |
for-7.0/block-20260206
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Merge tag 'for-7.0/block-20260206' of git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux
Pull block updates from Jens Axboe:
- Support for batch request processing for ublk, improving the
efficiency of the kernel/ublk server communication. This can yield
nice 7-12% performance improvements
- Support for integrity data for ublk
- Various other ublk improvements and additions, including a ton of
selftests additions and updated
- Move the handling of blk-crypto software fallback from below the
block layer to above it. This reduces the complexity of dealing with
bio splitting
- Series fixing a number of potential deadlocks in blk-mq related to
the queue usage counter and writeback throttling and rq-qos debugfs
handling
- Add an async_depth queue attribute, to resolve a performance
regression that's been around for a qhilw related to the scheduler
depth handling
- Only use task_work for IOPOLL completions on NVMe, if it is necessary
to do so. An earlier fix for an issue resulted in all these
completions being punted to task_work, to guarantee that completions
were only run for a given io_uring ring when it was local to that
ring. With the new changes, we can detect if it's necessary to use
task_work or not, and avoid it if possible.
- rnbd fixes:
- Fix refcount underflow in device unmap path
- Handle PREFLUSH and NOUNMAP flags properly in protocol
- Fix server-side bi_size for special IOs
- Zero response buffer before use
- Fix trace format for flags
- Add .release to rnbd_dev_ktype
- MD pull requests via Yu Kuai
- Fix raid5_run() to return error when log_init() fails
- Fix IO hang with degraded array with llbitmap
- Fix percpu_ref not resurrected on suspend timeout in llbitmap
- Fix GPF in write_page caused by resize race
- Fix NULL pointer dereference in process_metadata_update
- Fix hang when stopping arrays with metadata through dm-raid
- Fix any_working flag handling in raid10_sync_request
- Refactor sync/recovery code path, improve error handling for
badblocks, and remove unused recovery_disabled field
- Consolidate mddev boolean fields into mddev_flags
- Use mempool to allocate stripe_request_ctx and make sure
max_sectors is not less than io_opt in raid5
- Fix return value of mddev_trylock
- Fix memory leak in raid1_run()
- Add Li Nan as mdraid reviewer
- Move phys_vec definitions to the kernel types, mostly in preparation
for some VFIO and RDMA changes
- Improve the speed for secure erase for some devices
- Various little rust updates
- Various other minor fixes, improvements, and cleanups
* tag 'for-7.0/block-20260206' of git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux: (162 commits)
blk-mq: ABI/sysfs-block: fix docs build warnings
selftests: ublk: organize test directories by test ID
block: decouple secure erase size limit from discard size limit
block: remove redundant kill_bdev() call in set_blocksize()
blk-mq: add documentation for new queue attribute async_dpeth
block, bfq: convert to use request_queue->async_depth
mq-deadline: covert to use request_queue->async_depth
kyber: covert to use request_queue->async_depth
blk-mq: add a new queue sysfs attribute async_depth
blk-mq: factor out a helper blk_mq_limit_depth()
blk-mq-sched: unify elevators checking for async requests
block: convert nr_requests to unsigned int
block: don't use strcpy to copy blockdev name
blk-mq-debugfs: warn about possible deadlock
blk-mq-debugfs: add missing debugfs_mutex in blk_mq_debugfs_register_hctxs()
blk-mq-debugfs: remove blk_mq_debugfs_unregister_rqos()
blk-mq-debugfs: make blk_mq_debugfs_register_rqos() static
blk-rq-qos: fix possible debugfs_mutex deadlock
blk-mq-debugfs: factor out a helper to register debugfs for all rq_qos
blk-wbt: fix possible deadlock to nest pcpu_alloc_mutex under q_usage_counter
...
|
||
|
Linus Torvalds
|
591beb0e3a |
io_uring-bpf-restrictions.4-20260206
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||
|
Linus Torvalds
|
f5d4feed17 |
for-7.0/io_uring-20260206
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Linus Torvalds
|
26c9342bb7 |
struct filename series
[mostly] sanitize struct filename hanling
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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Merge tag 'pull-filename' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull vfs 'struct filename' updates from Al Viro:
"[Mostly] sanitize struct filename handling"
* tag 'pull-filename' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (68 commits)
sysfs(2): fs_index() argument is _not_ a pathname
alpha: switch osf_mount() to strndup_user()
ksmbd: use CLASS(filename_kernel)
mqueue: switch to CLASS(filename)
user_statfs(): switch to CLASS(filename)
statx: switch to CLASS(filename_maybe_null)
quotactl_block(): switch to CLASS(filename)
chroot(2): switch to CLASS(filename)
move_mount(2): switch to CLASS(filename_maybe_null)
namei.c: switch user pathname imports to CLASS(filename{,_flags})
namei.c: convert getname_kernel() callers to CLASS(filename_kernel)
do_f{chmod,chown,access}at(): use CLASS(filename_uflags)
do_readlinkat(): switch to CLASS(filename_flags)
do_sys_truncate(): switch to CLASS(filename)
do_utimes_path(): switch to CLASS(filename_uflags)
chdir(2): unspaghettify a bit...
do_fchownat(): unspaghettify a bit...
fspick(2): use CLASS(filename_flags)
name_to_handle_at(): use CLASS(filename_uflags)
vfs_open_tree(): use CLASS(filename_uflags)
...
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Steven Rostedt
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b4bade506b |
tracing: Move d_max_latency out of CONFIG_FSNOTIFY protection
The tracing_max_latency shouldn't be limited if CONFIG_FSNOTIFY is defined
or not and it was moved out of that protection to be always available with
CONFIG_TRACER_MAX_TRACE. All was moved out except the dentry descriptor
for it (d_max_latency) and it failed to build on some configs.
Move that out of the CONFIG_FSNOTIFY protection too.
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Link: https://patch.msgid.link/20260209194631.788bfc85@fedora
Fixes:
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Linus Torvalds
|
8a5203c630 |
74 client changesets
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Linus Torvalds
|
af23fd93fc |
dlm for 7.0
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||
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Linus Torvalds
|
7141433fbe |
gfs2 changes
- Prevent rename() from failing with -ESTALE when there are locking
conflicts and retry the operation instead.
- Don't fail when fiemap triggers a page fault (xfstest generic/742).
- Fix another locking request cancellation bug.
- Minor other fixes and cleanups.
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Merge tag 'gfs2-for-7.0' of git://git.kernel.org/pub/scm/linux/kernel/git/gfs2/linux-gfs2
Pull gfs2 updates from Andreas Gruenbacher:
- Prevent rename() from failing with -ESTALE when there are locking
conflicts and retry the operation instead
- Don't fail when fiemap triggers a page fault (xfstest generic/742)
- Fix another locking request cancellation bug
- Minor other fixes and cleanups
* tag 'gfs2-for-7.0' of git://git.kernel.org/pub/scm/linux/kernel/git/gfs2/linux-gfs2:
gfs2: fiemap page fault fix
gfs2: fix memory leaks in gfs2_fill_super error path
gfs2: Fix use-after-free in iomap inline data write path
gfs2: Fix slab-use-after-free in qd_put
gfs2: Introduce glock_{type,number,sbd} helpers
gfs2: gfs2_glock_hold cleanup
gfs: Use fixed GL_GLOCK_MIN_HOLD time
gfs2: Fix gfs2_log_get_bio argument type
gfs2: gfs2_chain_bio start sector fix
gfs2: Initialize bio->bi_opf early
gfs2: Rename gfs2_log_submit_{bio -> write}
gfs2: Do not cancel internal demote requests
gfs2: run_queue cleanup
gfs2: Retries missing in gfs2_{rename,exchange}
gfs2: glock cancelation flag fix
|
||
|
Linus Torvalds
|
56feb532bb |
xfs: new patches for Linux 7.0
Signed-off-by: Carlos Maiolino <cem@kernel.org>
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Merge tag 'xfs-merge-7.0' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux
Pull xfs updates from Carlos Maiolino:
"This contains several improvements to zoned device support,
performance improvements for the parent pointers, and a new health
monitoring feature. There are some improvements in the journaling code
too but no behavior change expected.
Last but not least, some code refactoring and bug fixes are also
included in this series"
* tag 'xfs-merge-7.0' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux: (67 commits)
xfs: add sysfs stats for zoned GC
xfs: give the defer_relog stat a xs_ prefix
xfs: add zone reset error injection
xfs: refactor zone reset handling
xfs: don't mark all discard issued by zoned GC as sync
xfs: allow setting errortags at mount time
xfs: use WRITE_ONCE/READ_ONCE for m_errortag
xfs: move the guts of XFS_ERRORTAG_DELAY out of line
xfs: don't validate error tags in the I/O path
xfs: allocate m_errortag early
xfs: fix the errno sign for the xfs_errortag_{add,clearall} stubs
xfs: validate log record version against superblock log version
xfs: fix spacing style issues in xfs_alloc.c
xfs: remove xfs_zone_gc_space_available
xfs: use a seprate member to track space availabe in the GC scatch buffer
xfs: check for deleted cursors when revalidating two btrees
xfs: fix UAF in xchk_btree_check_block_owner
xfs: check return value of xchk_scrub_create_subord
xfs: only call xf{array,blob}_destroy if we have a valid pointer
xfs: get rid of the xchk_xfile_*_descr calls
...
|
||
|
Linus Torvalds
|
3893854000 |
Changes since last update:
- Support inode page cache sharing among filesystems
- Formally separate optional encoded (aka compressed) inode layouts
(and the implementations) from the EROFS core on-disk aligned plain
format for future zero-trust security usage
- Improve performance by caching the fact that an inode does not have
a POSIX ACL
- Improve LZ4 decompression error reporting
- Enable LZMA by default and promote DEFLATE and Zstandard algorithms
out of EXPERIMENTAL status
- Switch to inode_set_cached_link() to cache symlink lengths
- random bugfixes and minor cleanups
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Merge tag 'erofs-for-7.0-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/xiang/erofs
Pull erofs updates from Gao Xiang:
"In this cycle, inode page cache sharing among filesystems on the same
machine is now supported, which is particularly useful for
high-density hosts running tens of thousands of containers.
In addition, we fully isolate the EROFS core on-disk format from other
optional encoded layouts since the core on-disk part is designed to be
simple, effective, and secure. Users can use the core format to build
unique golden immutable images and import their filesystem trees
directly from raw block devices via DMA, page-mapped DAX devices,
and/or file-backed mounts without having to worry about unnecessary
intrinsic consistency issues found in other generic filesystems by
design. However, the full vision is still working in progress and will
spend more time to achieve final goals.
There are other improvements and bug fixes as usual, as listed below:
- Support inode page cache sharing among filesystems
- Formally separate optional encoded (aka compressed) inode layouts
(and the implementations) from the EROFS core on-disk aligned plain
format for future zero-trust security usage
- Improve performance by caching the fact that an inode does not have
a POSIX ACL
- Improve LZ4 decompression error reporting
- Enable LZMA by default and promote DEFLATE and Zstandard algorithms
out of EXPERIMENTAL status
- Switch to inode_set_cached_link() to cache symlink lengths
- random bugfixes and minor cleanups"
* tag 'erofs-for-7.0-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/xiang/erofs: (31 commits)
erofs: fix UAF issue for file-backed mounts w/ directio option
erofs: update compression algorithm status
erofs: fix inline data read failure for ztailpacking pclusters
erofs: avoid some unnecessary #ifdefs
erofs: handle end of filesystem properly for file-backed mounts
erofs: separate plain and compressed filesystems formally
erofs: use inode_set_cached_link()
erofs: mark inodes without acls in erofs_read_inode()
erofs: implement .fadvise for page cache share
erofs: support compressed inodes for page cache share
erofs: support unencoded inodes for page cache share
erofs: pass inode to trace_erofs_read_folio
erofs: introduce the page cache share feature
erofs: using domain_id in the safer way
erofs: add erofs_inode_set_aops helper to set the aops
erofs: support user-defined fingerprint name
erofs: decouple `struct erofs_anon_fs_type`
fs: Export alloc_empty_backing_file
erofs: tidy up erofs_init_inode_xattrs()
erofs: add missing documentation about `directio` mount option
...
|
||
|
Linus Torvalds
|
4fb7d86fbe |
hfs/hfsplus updates for v7.0
- hfsplus: avoid double unload_nls() on mount failure
- hfsplus: fix warning issue in inode.c
- hfsplus: fix generic/062 xfstests failure
- hfsplus: fix generic/037 xfstests failure
- hfsplus: pretend special inodes as regular files
- hfsplus: return error when node already exists in hfs_bnode_create
- hfs: Replace BUG_ON with error handling for CNID count checks
- hfsplus: fix generic/020 xfstests failure
- hfsplus: fix volume corruption issue for generic/498
- hfsplus: fix volume corruption issue for generic/480
- hfsplus: ensure sb->s_fs_info is always cleaned up
- hfs: ensure sb->s_fs_info is always cleaned up
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Merge tag 'hfs-v7.0-tag1' of git://git.kernel.org/pub/scm/linux/kernel/git/vdubeyko/hfs
Pull hfs/hfsplus updates from Viacheslav Dubeyko:
"This pull request contains several fixes of syzbot reported issues and
HFS+ fixes of xfstests failures.
- fix an issue reported by syzbot triggering BUG_ON() in the case of
corrupted superblock, replacing the BUG_ON()s with proper error
handling (Jori Koolstra)
- fix memory leaks in the mount logic of HFS/HFS+ file systems. When
HFS/HFS+ were converted to the new mount api a bug was introduced
by changing the allocation pattern of sb->s_fs_info (Mehdi Ben Hadj
Khelifa)
- fix hfs_bnode_create() by returning ERR_PTR(-EEXIST) instead of
the node pointer when it's already hashed. This avoids a double
unload_nls() on mount failure (suggested by Shardul Bankar)
- set inode's mode as regular file for system inodes (Tetsuo Handa)
The rest fix failures in generic/020, generic/037, generic/062,
generic/480, and generic/498 xfstests for the case of HFS+ file
system. Currently, only 30 xfstests' test-cases experience failures
for HFS+ file system (initially, it was around 100 failed xfstests)"
* tag 'hfs-v7.0-tag1' of git://git.kernel.org/pub/scm/linux/kernel/git/vdubeyko/hfs:
hfsplus: avoid double unload_nls() on mount failure
hfsplus: fix warning issue in inode.c
hfsplus: fix generic/062 xfstests failure
hfsplus: fix generic/037 xfstests failure
hfsplus: pretend special inodes as regular files
hfsplus: return error when node already exists in hfs_bnode_create
hfs: Replace BUG_ON with error handling for CNID count checks
hfsplus: fix generic/020 xfstests failure
hfsplus: fix volume corruption issue for generic/498
hfsplus: fix volume corruption issue for generic/480
hfsplus: ensure sb->s_fs_info is always cleaned up
hfs: ensure sb->s_fs_info is always cleaned up
|
||
|
Linus Torvalds
|
d10a88ce16 |
nilfs2 updates for v7.0
- nilfs2: fix missing struct keywords in nilfs2_api.h kernel-doc - nilfs2: convert nilfs_super_block to kernel-doc - nilfs2: Fix potential block overflow that cause system hang -----BEGIN PGP SIGNATURE----- iHUEABYIAB0WIQT4wVoLCG92poNnMFAhI4xTh21NnQUCaYZw2gAKCRAhI4xTh21N nZuFAQD8vJk3OJKbxxroCyTGxDT3C/WL7PMC9Z1QNQ/yF0zBYwD+JSPN/dfQY6uF LracWCoFQcdaWRRWn1SA2k7L1OchFgQ= =WXsp -----END PGP SIGNATURE----- Merge tag 'nilfs2-v7.0-tag1' of git://git.kernel.org/pub/scm/linux/kernel/git/vdubeyko/nilfs2 Pull nilfs2 updates from Viacheslav Dubeyko: - Fix potential block overflow that cause system hang When executing the FITRIM command, an underflow can occur in the calculation of nblocks. This ultimately leads to the block layer function __blkdev_issue_discard() taking an excessively long time to process the bio chain, and the ns_segctor_sem lock remains held for a long period. This prevents other tasks from acquiring the ns_segctor_sem lock, resulting in a hang reported by syzbot (Edward Adam Davis) - Fix missing struct keywords in nilfs2_api.h kernel-doc (Ryusuke Konishi) - Convert nilfs_super_block to kernel-doc Eliminate 40+ kernel-doc warnings in nilfs2_ondisk.h by converting all of the struct member comments to kernel-doc comments (Randy Dunlap) * tag 'nilfs2-v7.0-tag1' of git://git.kernel.org/pub/scm/linux/kernel/git/vdubeyko/nilfs2: nilfs2: fix missing struct keywords in nilfs2_api.h kernel-doc nilfs2: convert nilfs_super_block to kernel-doc nilfs2: Fix potential block overflow that cause system hang |
||
Namjae Jeon
|
31b9028c77 |
ksmbd: convert tree_conns_lock to rw_semaphore
Converts tree_conns_lock to an rw_semaphore to allow sleeping while the lock is held. Additionally, it simplifies the locking logic in ksmbd_tree_conn_session_logoff() and introduces __ksmbd_tree_conn_disconnect() to avoid redundant locking. Signed-off-by: Namjae Jeon <linkinjeon@kernel.org> Signed-off-by: Steve French <stfrench@microsoft.com> |
||
|
Namjae Jeon
|
0080608706 |
ksmbd: fix missing chann_lock while iterating session channel list
Add chann_lock while iterating ksmbd_chann_list in show_proc_session() and show_proc_sessions(). This will prevents a race condition with concurrent channel list modifications. Signed-off-by: Namjae Jeon <linkinjeon@kernel.org> Signed-off-by: Steve French <stfrench@microsoft.com> |
||
|
Linus Torvalds
|
8912c2fd58 |
for-6.20-tag
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Merge tag 'for-6.20-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux
Pull btrfs updates from David Sterba:
"User visible changes, feature updates:
- when using block size > page size, enable direct IO
- fallback to buffered IO if the data profile has duplication,
workaround to avoid checksum mismatches on block group profiles
with redundancy, real direct IO is possible on single or RAID0
- redo export of zoned statistics, moved from sysfs to
/proc/pid/mountstats due to size limitations of the former
Experimental features:
- remove offload checksum tunable, intended to find best way to do it
but since we've switched to offload to thread for everything we
don't need it anymore
- initial support for remap-tree feature, a translation layer of
logical block addresses that allow changes without moving/rewriting
blocks to do eg. relocation, or other changes that require COW
Notable fixes:
- automatic removal of accidentally leftover chunks when
free-space-tree is enabled since mkfs.btrfs v6.16.1
- zoned mode:
- do not try to append to conventional zones when RAID is mixing
zoned and conventional drives
- fixup write pointers when mixing zoned and conventional on
DUP/RAID* profiles
- when using squota, relax deletion rules for qgroups with 0 members
to allow easier recovery from accounting bugs, also add more checks
to detect bad accounting
- fix periodic reclaim scanning, properly check boundary conditions
not to trigger it unexpectedly or miss the time to run it
- trim:
- continue after first error
- change reporting to the first detected error
- add more cancellation points
- reduce contention of big device lock that can block other
operations when there's lots of trimmed space
- when chunk allocation is forced (needs experimental build) fix
transaction abort when unexpected space layout is detected
Core:
- switch to crypto library API for checksumming, removed module
dependencies, pointer indirections, etc.
- error handling improvements
- adjust how and where transaction commit or abort are done and are
maybe not necessary
- minor compression optimization to skip single block ranges
- improve how compression folios are handled
- new and updated selftests
- cleanups, refactoring:
- auto-freeing and other automatic variable cleanup conversion
- structure size optimizations
- condition annotations"
* tag 'for-6.20-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux: (137 commits)
btrfs: get rid of compressed_bio::compressed_folios[]
btrfs: get rid of compressed_folios[] usage for encoded writes
btrfs: get rid of compressed_folios[] usage for compressed read
btrfs: remove the old btrfs_compress_folios() infrastructure
btrfs: switch to btrfs_compress_bio() interface for compressed writes
btrfs: introduce btrfs_compress_bio() helper
btrfs: zlib: introduce zlib_compress_bio() helper
btrfs: zstd: introduce zstd_compress_bio() helper
btrfs: lzo: introduce lzo_compress_bio() helper
btrfs: zoned: factor out the zone loading part into a testable function
btrfs: add cleanup function for btrfs_free_chunk_map
btrfs: tests: add cleanup functions for test specific functions
btrfs: raid56: fix memory leak of btrfs_raid_bio::stripe_uptodate_bitmap
btrfs: tests: add unit tests for pending extent walking functions
btrfs: fix EEXIST abort due to non-consecutive gaps in chunk allocation
btrfs: fix transaction commit blocking during trim of unallocated space
btrfs: handle user interrupt properly in btrfs_trim_fs()
btrfs: preserve first error in btrfs_trim_fs()
btrfs: continue trimming remaining devices on failure
btrfs: do not BUG_ON() in btrfs_remove_block_group()
...
|
||
Arnd Bergmann
|
b29a7a8eee |
fs: fuse: fix max() of incompatible types
The 'max()' value of a 'long long' and an 'unsigned int' is problematic
if the former is negative:
In function 'fuse_wr_pages',
inlined from 'fuse_perform_write' at fs/fuse/file.c:1347:27:
include/linux/compiler_types.h:652:45: error: call to '__compiletime_assert_390' declared with attribute error: min(((pos + len - 1) >> 12) - (pos >> 12) + 1, max_pages) signedness error
652 | _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
| ^
Use a temporary variable to make it clearer what is going on here.
Fixes:
|
||
|
Linus Torvalds
|
9e355113f0 |
vfs-7.0-rc1.misc
Please consider pulling these changes from the signed vfs-7.0-rc1.misc tag.
Thanks!
Christian
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Merge tag 'vfs-7.0-rc1.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs
Pull misc vfs updates from Christian Brauner:
"This contains a mix of VFS cleanups, performance improvements, API
fixes, documentation, and a deprecation notice.
Scalability and performance:
- Rework pid allocation to only take pidmap_lock once instead of
twice during alloc_pid(), improving thread creation/teardown
throughput by 10-16% depending on false-sharing luck. Pad the
namespace refcount to reduce false-sharing
- Track file lock presence via a flag in ->i_opflags instead of
reading ->i_flctx, avoiding false-sharing with ->i_readcount on
open/close hot paths. Measured 4-16% improvement on 24-core
open-in-a-loop benchmarks
- Use a consume fence in locks_inode_context() to match the
store-release/load-consume idiom, eliminating a hardware fence on
some architectures
- Annotate cdev_lock with __cacheline_aligned_in_smp to prevent
false-sharing
- Remove a redundant DCACHE_MANAGED_DENTRY check in
__follow_mount_rcu() that never fires since the caller already
verifies it, eliminating a 100% mispredicted branch
- Fix a 100% mispredicted likely() in devcgroup_inode_permission()
that became wrong after a prior code reorder
Bug fixes and correctness:
- Make insert_inode_locked() wait for inode destruction instead of
skipping, fixing a corner case where two matching inodes could
exist in the hash
- Move f_mode initialization before file_ref_init() in alloc_file()
to respect the SLAB_TYPESAFE_BY_RCU ordering contract
- Add a WARN_ON_ONCE guard in try_to_free_buffers() for folios with
no buffers attached, preventing a null pointer dereference when
AS_RELEASE_ALWAYS is set but no release_folio op exists
- Fix select restart_block to store end_time as timespec64, avoiding
truncation of tv_sec on 32-bit architectures
- Make dump_inode() use get_kernel_nofault() to safely access inode
and superblock fields, matching the dump_mapping() pattern
API modernization:
- Make posix_acl_to_xattr() allocate the buffer internally since
every single caller was doing it anyway. Reduces boilerplate and
unnecessary error checking across ~15 filesystems
- Replace deprecated simple_strtoul() with kstrtoul() for the
ihash_entries, dhash_entries, mhash_entries, and mphash_entries
boot parameters, adding proper error handling
- Convert chardev code to use guard(mutex) and __free(kfree) cleanup
patterns
- Replace min_t() with min() or umin() in VFS code to avoid silently
truncating unsigned long to unsigned int
- Gate LOOKUP_RCU assertions behind CONFIG_DEBUG_VFS since callers
already check the flag
Deprecation:
- Begin deprecating legacy BSD process accounting (acct(2)). The
interface has numerous footguns and better alternatives exist
(eBPF)
Documentation:
- Fix and complete kernel-doc for struct export_operations, removing
duplicated documentation between ReST and source
- Fix kernel-doc warnings for __start_dirop() and ilookup5_nowait()
Testing:
- Add a kunit test for initramfs cpio handling of entries with
filesize > PATH_MAX
Misc:
- Add missing <linux/init_task.h> include in fs_struct.c"
* tag 'vfs-7.0-rc1.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs: (28 commits)
posix_acl: make posix_acl_to_xattr() alloc the buffer
fs: make insert_inode_locked() wait for inode destruction
initramfs_test: kunit test for cpio.filesize > PATH_MAX
fs: improve dump_inode() to safely access inode fields
fs: add <linux/init_task.h> for 'init_fs'
docs: exportfs: Use source code struct documentation
fs: move initializing f_mode before file_ref_init()
exportfs: Complete kernel-doc for struct export_operations
exportfs: Mark struct export_operations functions at kernel-doc
exportfs: Fix kernel-doc output for get_name()
acct(2): begin the deprecation of legacy BSD process accounting
device_cgroup: remove branch hint after code refactor
VFS: fix __start_dirop() kernel-doc warnings
fs: Describe @isnew parameter in ilookup5_nowait()
fs/namei: Remove redundant DCACHE_MANAGED_DENTRY check in __follow_mount_rcu
fs: only assert on LOOKUP_RCU when built with CONFIG_DEBUG_VFS
select: store end_time as timespec64 in restart block
chardev: Switch to guard(mutex) and __free(kfree)
namespace: Replace simple_strtoul with kstrtoul to parse boot params
dcache: Replace simple_strtoul with kstrtoul in set_dhash_entries
...
|
||
|
Linus Torvalds
|
3304b3fedd |
vfs-7.0-rc1.iomap
Please consider pulling these changes from the signed vfs-7.0-rc1.iomap tag. Thanks! Christian -----BEGIN PGP SIGNATURE----- iHUEABYKAB0WIQRAhzRXHqcMeLMyaSiRxhvAZXjcogUCaYX49gAKCRCRxhvAZXjc oqSJAP43kijhiHYTVRurju8VWzLuY2yWweL5z/2i/w4b0Vh4TgD+OfeOnf/zSYvR HEvf5iq1QtlaYZq8njSYOc8DlWkQvQ4= =OKKM -----END PGP SIGNATURE----- Merge tag 'vfs-7.0-rc1.iomap' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs Pull vfs iomap updates from Christian Brauner: - Erofs page cache sharing preliminaries: Plumb a void *private parameter through iomap_read_folio() and iomap_readahead() into iomap_iter->private, matching iomap DIO. Erofs uses this to replace a bogus kmap_to_page() call, as preparatory work for page cache sharing. - Fix for invalid folio access: Fix an invalid folio access when a folio without iomap_folio_state is fully submitted to the IO helper — the helper may call folio_end_read() at any time, so ctx->cur_folio must be invalidated after full submission. * tag 'vfs-7.0-rc1.iomap' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs: iomap: fix invalid folio access after folio_end_read() erofs: hold read context in iomap_iter if needed iomap: stash iomap read ctx in the private field of iomap_iter |
||
|
Linus Torvalds
|
157d3d6efd |
vfs-7.0-rc1.namespace
Please consider pulling these changes from the signed vfs-7.0-rc1.namespace tag. Thanks! Christian -----BEGIN PGP SIGNATURE----- iHUEABYKAB0WIQRAhzRXHqcMeLMyaSiRxhvAZXjcogUCaYX49gAKCRCRxhvAZXjc ovzgAP9BpqMQhMy2VCurru8/T5VAd6eJdgXzEfXqMksL5BNm8gEAsLx666KJNKgm Sh/yVA2KBjf51gvcLZ4gHOISaMU8bAI= =RGLf -----END PGP SIGNATURE----- Merge tag 'vfs-7.0-rc1.namespace' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs Pull vfs mount updates from Christian Brauner: - statmount: accept fd as a parameter Extend struct mnt_id_req with a file descriptor field and a new STATMOUNT_BY_FD flag. When set, statmount() returns mount information for the mount the fd resides on — including detached mounts (unmounted via umount2(MNT_DETACH)). For detached mounts the STATMOUNT_MNT_POINT and STATMOUNT_MNT_NS_ID mask bits are cleared since neither is meaningful. The capability check is skipped for STATMOUNT_BY_FD since holding an fd already implies prior access to the mount and equivalent information is available through fstatfs() and /proc/pid/mountinfo without privilege. Includes comprehensive selftests covering both attached and detached mount cases. - fs: Remove internal old mount API code (1 patch) Now that every in-tree filesystem has been converted to the new mount API, remove all the legacy shim code in fs_context.c that handled unconverted filesystems. This deletes ~280 lines including legacy_init_fs_context(), the legacy_fs_context struct, and associated wrappers. The mount(2) syscall path for userspace remains untouched. Documentation references to the legacy callbacks are cleaned up. - mount: add OPEN_TREE_NAMESPACE to open_tree() Container runtimes currently use CLONE_NEWNS to copy the caller's entire mount namespace — only to then pivot_root() and recursively unmount everything they just copied. With large mount tables and thousands of parallel container launches this creates significant contention on the namespace semaphore. OPEN_TREE_NAMESPACE copies only the specified mount tree (like OPEN_TREE_CLONE) but returns a mount namespace fd instead of a detached mount fd. The new namespace contains the copied tree mounted on top of a clone of the real rootfs. This functions as a combined unshare(CLONE_NEWNS) + pivot_root() in a single syscall. Works with user namespaces: an unshare(CLONE_NEWUSER) followed by OPEN_TREE_NAMESPACE creates a mount namespace owned by the new user namespace. Mount namespace file mounts are excluded from the copy to prevent cycles. Includes ~1000 lines of selftests" * tag 'vfs-7.0-rc1.namespace' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs: selftests/open_tree: add OPEN_TREE_NAMESPACE tests mount: add OPEN_TREE_NAMESPACE fs: Remove internal old mount API code selftests: statmount: tests for STATMOUNT_BY_FD statmount: accept fd as a parameter statmount: permission check should return EPERM |
||
Feng Jiang
|
18be4ca5cb |
riscv: lib: optimize strlen loop efficiency
Optimize the generic strlen implementation by using a pre-decrement
pointer. This reduces the loop body from 4 instructions to 3 and
eliminates the unconditional jump ('j').
Old loop (4 instructions, 2 branches):
1: lbu t0, 0(t1); beqz t0, 2f; addi t1, t1, 1; j 1b
New loop (3 instructions, 1 branch):
1: addi t1, t1, 1; lbu t0, 0(t1); bnez t0, 1b
This change improves execution efficiency and reduces branch pressure
for systems without the Zbb extension.
Signed-off-by: Feng Jiang <jiangfeng@kylinos.cn>
Link: https://patch.msgid.link/20251218032614.57356-1-jiangfeng@kylinos.cn
Signed-off-by: Paul Walmsley <pjw@kernel.org>
|
||
Thomas Weißschuh
|
098921ec68 |
selftests: riscv: vstate_exec_nolibc: Use the regular prctl() function
The my_syscall*() macros are internal implementation details of nolibc. Now that nolibc has a normal prctl() function, use that. Signed-off-by: Thomas Weißschuh <linux@weissschuh.net> Link: https://patch.msgid.link/20260117-nolibc-mysyscall-riscv-v1-1-0ae1ae3513e9@weissschuh.net Signed-off-by: Paul Walmsley <pjw@kernel.org> |
||
Sergey Matyukevich
|
849f05ae1e |
selftests: riscv: verify ptrace accepts valid vector csr values
Add a test to v_ptrace test suite to verify that ptrace accepts the valid input combinations of vector csr registers. Use kselftest fixture variants to create multiple inputs for the test. The test simulates a debug scenario with three breakpoints: 0. init: let the tracee set up its initial vector configuration 1. 1st bp: modify the tracee's vector csr registers from the debugger - resume the tracee to execute a block without vector instructions 2. 2nd bp: read back the tracees's vector csr registers from the debugger - compare with values set by the debugger - resume the tracee to execute a block with vector instructions 3. 3rd bp: read back the tracess's vector csr registers again - compare with values set by the debugger The last check helps to confirm that ptrace validation check for vector csr registers input values works properly and maintains an accurate view of the tracee's vector context in debugger. Signed-off-by: Sergey Matyukevich <geomatsi@gmail.com> Tested-by: Andy Chiu <andybnac@gmail.com> Link: https://patch.msgid.link/20251214163537.1054292-10-geomatsi@gmail.com [pjw@kernel.org: cleaned up a checkpatch issue] Signed-off-by: Paul Walmsley <pjw@kernel.org> |
||
|
Sergey Matyukevich
|
30eb191c89 |
selftests: riscv: verify ptrace rejects invalid vector csr inputs
Add a test to v_ptrace test suite to verify that ptrace rejects the invalid input combinations of vector csr registers. Use kselftest fixture variants to create multiple invalid inputs for the test. Signed-off-by: Sergey Matyukevich <geomatsi@gmail.com> Tested-by: Andy Chiu <andybnac@gmail.com> Link: https://patch.msgid.link/20251214163537.1054292-9-geomatsi@gmail.com [pjw@kernel.org: cleaned up some checkpatch issues] Signed-off-by: Paul Walmsley <pjw@kernel.org> |
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Sergey Matyukevich
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3789d5eecd |
selftests: riscv: verify syscalls discard vector context
Add a test to v_ptrace test suite to verify that vector csr registers are clobbered on syscalls. Signed-off-by: Sergey Matyukevich <geomatsi@gmail.com> Reviewed-by: Andy Chiu <andybnac@gmail.com> Tested-by: Andy Chiu <andybnac@gmail.com> Link: https://patch.msgid.link/20251214163537.1054292-8-geomatsi@gmail.com [pjw@kernel.org: cleaned up a checkpatch issue] Signed-off-by: Paul Walmsley <pjw@kernel.org> |
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Sergey Matyukevich
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66d0304489 |
selftests: riscv: verify initial vector state with ptrace
Add a test case that attaches to a traced process immediately after its first executed vector instructions to verify the initial vector context. Signed-off-by: Sergey Matyukevich <geomatsi@gmail.com> Reviewed-by: Andy Chiu <andybnac@gmail.com> Tested-by: Andy Chiu <andybnac@gmail.com> Link: https://patch.msgid.link/20251214163537.1054292-7-geomatsi@gmail.com Signed-off-by: Paul Walmsley <pjw@kernel.org> |
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Sergey Matyukevich
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600f72ded8 |
selftests: riscv: test ptrace vector interface
Add a test case to check ptrace behavior in the case when vector extension is supported by the system, but vector context is not yet enabled for the traced process. Signed-off-by: Sergey Matyukevich <geomatsi@gmail.com> Reviewed-by: Andy Chiu <andybnac@gmail.com> Tested-by: Andy Chiu <andybnac@gmail.com> Link: https://patch.msgid.link/20251214163537.1054292-6-geomatsi@gmail.com [pjw@kernel.org: dropped duplicate sys/wait.h include] Signed-off-by: Paul Walmsley <pjw@kernel.org> |
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Sergey Matyukevich
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f4be988f5b |
riscv: ptrace: validate input vector csr registers
Add strict validation for vector csr registers when setting them via ptrace: - reject attempts to set reserved bits or invalid field combinations - enforce strict VL checks against calculated VLMAX values Vector specs 0.7.1 and 1.0 allow normal applications to set candidate VL values and read back the hardware-adjusted results, see section 6 for details. Disallow such flexibility in vector ptrace operations and strictly enforce valid VL input. The traced process may not update its saved vector context if no vector instructions execute between breakpoints. So the purpose of the strict ptrace approach is to make sure that debuggers maintain an accurate view of the tracee's vector context across multiple halt/resume debug cycles. Signed-off-by: Sergey Matyukevich <geomatsi@gmail.com> Reviewed-by: Andy Chiu <andybnac@gmail.com> Tested-by: Andy Chiu <andybnac@gmail.com> Link: https://patch.msgid.link/20251214163537.1054292-5-geomatsi@gmail.com Signed-off-by: Paul Walmsley <pjw@kernel.org> |
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Sergey Matyukevich
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fd515e037e |
riscv: csr: define vtype register elements
Define masks and shifts for vtype CSR according to the vector specs: - v0.7.1 used in early T-Head cores, known as xtheadvector in the kernel - v1.0 Signed-off-by: Sergey Matyukevich <geomatsi@gmail.com> Reviewed-by: Andy Chiu <andybnac@gmail.com> Tested-by: Andy Chiu <andybnac@gmail.com> Link: https://patch.msgid.link/20251214163537.1054292-4-geomatsi@gmail.com Signed-off-by: Paul Walmsley <pjw@kernel.org> |
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Sergey Matyukevich
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ef3ff40346 |
riscv: vector: init vector context with proper vlenb
The vstate in thread_struct is zeroed when the vector context is initialized. That includes read-only register vlenb, which holds the vector register length in bytes. Zeroed state persists until mstatus.VS becomes 'dirty' and a context switch saves the actual hardware values. This can expose the zero vlenb value to the user-space in early debug scenarios, e.g. when ptrace attaches to a traced process early, before any vector instruction except the first one was executed. Fix this by specifying proper vlenb on vector context init. Signed-off-by: Sergey Matyukevich <geomatsi@gmail.com> Reviewed-by: Andy Chiu <andybnac@gmail.com> Tested-by: Andy Chiu <andybnac@gmail.com> Link: https://patch.msgid.link/20251214163537.1054292-3-geomatsi@gmail.com Signed-off-by: Paul Walmsley <pjw@kernel.org> |
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Linus Torvalds
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8113b3998d |
vfs-7.0-rc1.atomic_open
Please consider pulling these changes from the signed vfs-7.0-rc1.atomic_open tag. Thanks! Christian -----BEGIN PGP SIGNATURE----- iHUEABYKAB0WIQRAhzRXHqcMeLMyaSiRxhvAZXjcogUCaYX49gAKCRCRxhvAZXjc ogUIAQDJTGgoi7H5a8OllRLXU/6D4OXhIhvZtvrK31HfLLDTRAEAw8JFnvFrCJP9 xf3yVklTJ9aW65zeh2mG0uiJ87JORgE= =qP0i -----END PGP SIGNATURE----- Merge tag 'vfs-7.0-rc1.atomic_open' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs Pull vfs atomic_open updates from Christian Brauner: "Allow knfsd to use atomic_open() While knfsd offers combined exclusive create and open results to clients, on some filesystems those results are not atomic. The separate vfs_create() + vfs_open() sequence in dentry_create() can produce races and unexpected errors. For example, open O_CREAT with mode 0 will succeed in creating the file but return -EACCES from vfs_open(). Additionally, network filesystems benefit from reducing remote round-trip operations by using a single atomic_open() call. Teach dentry_create() -- whose sole caller is knfsd -- to use atomic_open() for filesystems that support it" * tag 'vfs-7.0-rc1.atomic_open' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs: fs/namei: fix kernel-doc markup for dentry_create VFS/knfsd: Teach dentry_create() to use atomic_open() VFS: Prepare atomic_open() for dentry_create() VFS: move dentry_create() from fs/open.c to fs/namei.c |
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Linus Torvalds
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c84bb79f70 |
vfs-7.0-rc1.nullfs
Please consider pulling these changes from the signed vfs-7.0-rc1.nullfs tag.
Thanks!
Christian
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Merge tag 'vfs-7.0-rc1.nullfs' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs
Pull vfs nullfs update from Christian Brauner:
"Add a completely catatonic minimal pseudo filesystem called "nullfs"
and make pivot_root() work in the initramfs.
Currently pivot_root() does not work on the real rootfs because it
cannot be unmounted. Userspace has to recursively delete initramfs
contents manually before continuing boot, using the fragile
switch_root sequence (overmount + chroot).
Add nullfs, a minimal immutable filesystem that serves as the true
root of the mount hierarchy. The mutable rootfs (tmpfs/ramfs) is
mounted on top of it. This allows userspace to simply:
chdir(new_root);
pivot_root(".", ".");
umount2(".", MNT_DETACH);
without the traditional switch_root workarounds. systemd already
handles this correctly. It tries pivot_root() first and falls back
to MS_MOVE only when that fails.
This also means rootfs mounts in unprivileged namespaces no longer
need MNT_LOCKED, since the immutable nullfs guarantees nothing can be
revealed by unmounting the covering mount.
nullfs is a single-instance filesystem (get_tree_single()) marked
SB_NOUSER | SB_I_NOEXEC | SB_I_NODEV with an immutable empty root
directory. This means sooner or later it can be used to overmount
other directories to hide their contents without any additional
protection needed.
We enable it unconditionally. If we see any real regression we'll
hide it behind a boot option.
nullfs has extensions beyond this in the future. It will serve as a
concept to support the creation of completely empty mount namespaces -
which is work coming up in the next cycle"
* tag 'vfs-7.0-rc1.nullfs' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs:
fs: use nullfs unconditionally as the real rootfs
docs: mention nullfs
fs: add immutable rootfs
fs: add init_pivot_root()
fs: ensure that internal tmpfs mount gets mount id zero
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Daniel Hodges
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dd2fdc3504 |
SUNRPC: fix gss_auth kref leak in gss_alloc_msg error path
Commit |
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Linus Torvalds
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7e01a69f5c |
vfs-7.0-rc1.minix
Please consider pulling these changes from the signed vfs-7.0-rc1.minix tag. Thanks! Christian -----BEGIN PGP SIGNATURE----- iHUEABYKAB0WIQRAhzRXHqcMeLMyaSiRxhvAZXjcogUCaYX49gAKCRCRxhvAZXjc omJWAQDfaW9igIgp5VBbZNS9jhPGjmnnJrzFsntEZdflDoc+EQD+Jxqii0w7iani pfjxB6PwbZ/lLuOpN2oB6caPhcZy6gc= =4hDn -----END PGP SIGNATURE----- Merge tag 'vfs-7.0-rc1.minix' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs Pull minix update from Christian Brauner: "Consolidate and strengthen superblock validation in minix_check_superblock() The minix filesystem driver does not validate several superblock fields before using them during mount, allowing a crafted filesystem image to trigger out-of-bounds accesses (reported by syzbot)" * tag 'vfs-7.0-rc1.minix' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs: minix: Add required sanity checking to minix_check_superblock() |