- 04 May, 2023 3 commits
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Paulo Alcantara authored
Now that a DFS tcon manages its own list of DFS referrals and sessions, there is no point in having a single worker to refresh referrals of all DFS tcons. Make it faster and less prone to race conditions when having several mounts by queueing a worker per DFS tcon that will take care of refreshing only the DFS referrals related to it. Cc: stable@vger.kernel.org # v6.2+ Signed-off-by:
Paulo Alcantara (SUSE) <pc@manguebit.com> Signed-off-by:
Steve French <stfrench@microsoft.com>
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Paulo Alcantara authored
Protect access of TCP_Server_Info::{origin,leaf}_fullpath when matching DFS connections, and get rid of TCP_Server_Info::current_fullpath while we're at it. Cc: stable@vger.kernel.org # v6.2+ Signed-off-by:
Paulo Alcantara (SUSE) <pc@manguebit.com> Signed-off-by:
Steve French <stfrench@microsoft.com>
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Paulo Alcantara authored
Protect access of TCP_Server_Info::hostname when building the ipc tree name as it might get freed in cifsd thread and thus causing an use-after-free bug in __tree_connect_dfs_target(). Also, while at it, update status of IPC tcon on success and then avoid any extra tree connects. Cc: stable@vger.kernel.org # v6.2+ Signed-off-by:
Paulo Alcantara (SUSE) <pc@manguebit.com> Signed-off-by:
Steve French <stfrench@microsoft.com>
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- 02 May, 2023 4 commits
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Paulo Alcantara authored
TCP_Server_Info::hostname may be updated once or many times during reconnect, so protect its access outside reconnect path as well and then prevent any potential use-after-free bugs. Cc: stable@vger.kernel.org Signed-off-by:
Paulo Alcantara (SUSE) <pc@manguebit.com> Signed-off-by:
Steve French <stfrench@microsoft.com>
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Paulo Alcantara authored
Print full device name (UNC + optional prefix) from @old_ctx->source when printing info about mount. Before patch mount.cifs //srv/share/dir /mnt -o ... dmesg ... CIFS: Attempting to mount \\srv\share After patch mount.cifs //srv/share/dir /mnt -o ... dmesg ... CIFS: Attempting to mount //srv/share/dir Signed-off-by:
Paulo Alcantara (SUSE) <pc@manguebit.com> Signed-off-by:
Steve French <stfrench@microsoft.com>
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Paulo Alcantara authored
Use @ses->ses_lock to protect access of @ses->ses_status. Cc: stable@vger.kernel.org Signed-off-by:
Paulo Alcantara (SUSE) <pc@manguebit.com> Signed-off-by:
Steve French <stfrench@microsoft.com>
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Steve French authored
The name lengths were incorrect for two create contexts. SMB2_CREATE_APP_INSTANCE_ID SMB2_CREATE_APP_INSTANCE_VERSION Update the definitions for these two to match the protocol specs. Acked-by:
Paulo Alcantara (SUSE) <pc@manguebit.com> Reviewed-by:
Namjae Jeon <linkinjeon@kernel.org> Signed-off-by:
Steve French <stfrench@microsoft.com>
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- 01 May, 2023 2 commits
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git://git.samba.org/sfrench/cifs-2.6Linus Torvalds authored
Pull cifs fixes from Steve French: - deferred close fix for an important case when cached file should be closed immediately - two fixes for missing locks - eight minor cleanup * tag '6.4-rc-smb3-client-fixes-part1' of git://git.samba.org/sfrench/cifs-2.6: cifs: update internal module version number for cifs.ko smb3: move some common open context structs to smbfs_common smb3: make query_on_disk_id open context consistent and move to common code SMB3.1.1: add new tree connect ShareFlags cifs: missing lock when updating session status SMB3: Close deferred file handles in case of handle lease break SMB3: Add missing locks to protect deferred close file list cifs: Avoid a cast in add_lease_context() cifs: Simplify SMB2_open_init() cifs: Simplify SMB2_open_init() cifs: Simplify SMB2_open_init()
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Linus Torvalds authored
Merge tag 'tpmdd-v6.4-rc1-fix-v2' of git://git.kernel.org/pub/scm/linux/kernel/git/jarkko/linux-tpmdd Pull tpm fix from Jarkko Sakkinen: "This fixes a critical bug in my first pull request. I fixed the cherry pick issue and tested with real hardare and libvirt/qemu plus swtpm" * tag 'tpmdd-v6.4-rc1-fix-v2' of git://git.kernel.org/pub/scm/linux/kernel/git/jarkko/linux-tpmdd: tpm: Re-enable TPM chip boostrapping non-tpm_tis TPM drivers
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- 30 Apr, 2023 9 commits
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git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommuLinus Torvalds authored
Pull iommu updates from Joerg Roedel: - Convert to platform remove callback returning void - Extend changing default domain to normal group - Intel VT-d updates: - Remove VT-d virtual command interface and IOASID - Allow the VT-d driver to support non-PRI IOPF - Remove PASID supervisor request support - Various small and misc cleanups - ARM SMMU updates: - Device-tree binding updates: * Allow Qualcomm GPU SMMUs to accept relevant clock properties * Document Qualcomm 8550 SoC as implementing an MMU-500 * Favour new "qcom,smmu-500" binding for Adreno SMMUs - Fix S2CR quirk detection on non-architectural Qualcomm SMMU implementations - Acknowledge SMMUv3 PRI queue overflow when consuming events - Document (in a comment) why ATS is disabled for bypass streams - AMD IOMMU updates: - 5-level page-table support - NUMA awareness for memory allocations - Unisoc driver: Support for reattaching an existing domain - Rockchip driver: Add missing set_platform_dma_ops callback - Mediatek driver: Adjust the dma-ranges - Various other small fixes and cleanups * tag 'iommu-updates-v6.4' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu: (82 commits) iommu: Remove iommu_group_get_by_id() iommu: Make iommu_release_device() static iommu/vt-d: Remove BUG_ON in dmar_insert_dev_scope() iommu/vt-d: Remove a useless BUG_ON(dev->is_virtfn) iommu/vt-d: Remove BUG_ON in map/unmap() iommu/vt-d: Remove BUG_ON when domain->pgd is NULL iommu/vt-d: Remove BUG_ON in handling iotlb cache invalidation iommu/vt-d: Remove BUG_ON on checking valid pfn range iommu/vt-d: Make size of operands same in bitwise operations iommu/vt-d: Remove PASID supervisor request support iommu/vt-d: Use non-privileged mode for all PASIDs iommu/vt-d: Remove extern from function prototypes iommu/vt-d: Do not use GFP_ATOMIC when not needed iommu/vt-d: Remove unnecessary checks in iopf disabling path iommu/vt-d: Move PRI handling to IOPF feature path iommu/vt-d: Move pfsid and ats_qdep calculation to device probe path iommu/vt-d: Move iopf code from SVA to IOPF enabling path iommu/vt-d: Allow SVA with device-specific IOPF dmaengine: idxd: Add enable/disable device IOPF feature arm64: dts: mt8186: Add dma-ranges for the parent "soc" node ...
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git://git.kernel.org/pub/scm/linux/kernel/git/cxl/cxlLinus Torvalds authored
Pull compute express link updates from Dan Williams: "DOE support is promoted from drivers/cxl/ to drivers/pci/ with Bjorn's blessing, and the CXL core continues to mature its media management capabilities with support for listing and injecting media errors. Some late fixes that missed v6.3-final are also included: - Refactor the DOE infrastructure (Data Object Exchange PCI-config-cycle mailbox) to be a facility of the PCI core rather than the CXL core. This is foundational for upcoming support for PCI device-attestation and PCIe / CXL link encryption. - Add support for retrieving and injecting poison for CXL memory expanders. This enabling uses trace-events to convey CXL media error records to user tooling. It includes translation of device-local addresses (DPA) to system physical addresses (SPA) and their corresponding CXL region. - Fixes for decoder enumeration that missed v6.3-final - Miscellaneous fixups" * tag 'cxl-for-6.4' of git://git.kernel.org/pub/scm/linux/kernel/git/cxl/cxl: (38 commits) cxl/test: Add mock test for set_timestamp cxl/mbox: Update CMD_RC_TABLE tools/testing/cxl: Require CONFIG_DEBUG_FS tools/testing/cxl: Add a sysfs attr to test poison inject limits tools/testing/cxl: Use injected poison for get poison list tools/testing/cxl: Mock the Clear Poison mailbox command tools/testing/cxl: Mock the Inject Poison mailbox command cxl/mem: Add debugfs attributes for poison inject and clear cxl/memdev: Trace inject and clear poison as cxl_poison events cxl/memdev: Warn of poison inject or clear to a mapped region cxl/memdev: Add support for the Clear Poison mailbox command cxl/memdev: Add support for the Inject Poison mailbox command tools/testing/cxl: Mock support for Get Poison List cxl/trace: Add an HPA to cxl_poison trace events cxl/region: Provide region info to the cxl_poison trace event cxl/memdev: Add trigger_poison_list sysfs attribute cxl/trace: Add TRACE support for CXL media-error records cxl/mbox: Add GET_POISON_LIST mailbox command cxl/mbox: Initialize the poison state cxl/mbox: Restrict poison cmds to debugfs cxl_raw_allow_all ...
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git://git.kernel.org/pub/scm/linux/kernel/git/s390/linuxLinus Torvalds authored
Pull s390 updates from Vasily Gorbik: - Add support for stackleak feature. Also allow specifying architecture-specific stackleak poison function to enable faster implementation. On s390, the mvc-based implementation helps decrease typical overhead from a factor of 3 to just 25% - Convert all assembler files to use SYM* style macros, deprecating the ENTRY() macro and other annotations. Select ARCH_USE_SYM_ANNOTATIONS - Improve KASLR to also randomize module and special amode31 code base load addresses - Rework decompressor memory tracking to support memory holes and improve error handling - Add support for protected virtualization AP binding - Add support for set_direct_map() calls - Implement set_memory_rox() and noexec module_alloc() - Remove obsolete overriding of mem*() functions for KASAN - Rework kexec/kdump to avoid using nodat_stack to call purgatory - Convert the rest of the s390 code to use flexible-array member instead of a zero-length array - Clean up uaccess inline asm - Enable ARCH_HAS_MEMBARRIER_SYNC_CORE - Convert to using CONFIG_FUNCTION_ALIGNMENT and enable DEBUG_FORCE_FUNCTION_ALIGN_64B - Resolve last_break in userspace fault reports - Simplify one-level sysctl registration - Clean up branch prediction handling - Rework CPU counter facility to retrieve available counter sets just once - Other various small fixes and improvements all over the code * tag 's390-6.4-1' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux: (118 commits) s390/stackleak: provide fast __stackleak_poison() implementation stackleak: allow to specify arch specific stackleak poison function s390: select ARCH_USE_SYM_ANNOTATIONS s390/mm: use VM_FLUSH_RESET_PERMS in module_alloc() s390: wire up memfd_secret system call s390/mm: enable ARCH_HAS_SET_DIRECT_MAP s390/mm: use BIT macro to generate SET_MEMORY bit masks s390/relocate_kernel: adjust indentation s390/relocate_kernel: use SYM* macros instead of ENTRY(), etc. s390/entry: use SYM* macros instead of ENTRY(), etc. s390/purgatory: use SYM* macros instead of ENTRY(), etc. s390/kprobes: use SYM* macros instead of ENTRY(), etc. s390/reipl: use SYM* macros instead of ENTRY(), etc. s390/head64: use SYM* macros instead of ENTRY(), etc. s390/earlypgm: use SYM* macros instead of ENTRY(), etc. s390/mcount: use SYM* macros instead of ENTRY(), etc. s390/crc32le: use SYM* macros instead of ENTRY(), etc. s390/crc32be: use SYM* macros instead of ENTRY(), etc. s390/crypto,chacha: use SYM* macros instead of ENTRY(), etc. s390/amode31: use SYM* macros instead of ENTRY(), etc. ...
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git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuildLinus Torvalds authored
Pull Kbuild updates from Masahiro Yamada: - Refactor scripts/kallsyms to make it faster and easier to maintain - Clean up menuconfig - Provide Clang with hard-coded target triple instead of CROSS_COMPILE - Use -z pack-relative-relocs flags instead of --use-android-relr-tags for arm64 CONFIG_RELR - Add srcdeb-pkg target to build only a Debian source package - Add KDEB_SOURCE_COMPRESS option to specify the compression for a Debian source package - Misc cleanups and fixes * tag 'kbuild-v6.4' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild: kbuild: deb-pkg: specify targets in debian/rules as .PHONY sparc: unify sparc32/sparc64 archhelp kbuild: rpm-pkg: remove kernel-drm PROVIDES kbuild: deb-pkg: add KDEB_SOURCE_COMPRESS to specify source compression kbuild: add srcdeb-pkg target Makefile: use -z pack-relative-relocs kbuild: clang: do not use CROSS_COMPILE for target triple kconfig: menuconfig: reorder functions to remove forward declarations kconfig: menuconfig: remove unused M_EVENT macro kconfig: menuconfig: remove OLD_NCURSES macro kbuild: builddeb: Eliminate debian/arch use scripts/kallsyms: update the usage in the comment block scripts/kallsyms: decrease expand_symbol() / cleanup_symbol_name() calls scripts/kallsyms: change the output order scripts/kallsyms: move compiler-generated symbol patterns to mksysmap scripts/kallsyms: exclude symbols generated by itself dynamically scripts/mksysmap: use sed with in-line comments scripts/mksysmap: remove comments described in nm(1) scripts/kallsyms: remove redundant code for omitting U and N kallsyms: expand symbol name into comment for debugging
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https://github.com/Rust-for-Linux/linuxLinus Torvalds authored
Pull rust updates from Miguel Ojeda "More additions to the Rust core. Importantly, this adds the pin-init API, which will be used by other abstractions, such as the synchronization ones added here too: - pin-init API: a solution for the safe pinned initialization problem. This allows to reduce the need for 'unsafe' code in the kernel when dealing with data structures that require a stable address. Commit 90e53c5e ("rust: add pin-init API core") contains a nice introduction -- here is an example of how it looks like: #[pin_data] struct Example { #[pin] value: Mutex<u32>, #[pin] value_changed: CondVar, } impl Example { fn new() -> impl PinInit<Self> { pin_init!(Self { value <- new_mutex!(0), value_changed <- new_condvar!(), }) } } // In a `Box`. let b = Box::pin_init(Example::new())?; // In the stack. stack_pin_init!(let s = Example::new()); - 'sync' module: New types 'LockClassKey' ('struct lock_class_key'), 'Lock', 'Guard', 'Mutex' ('struct mutex'), 'SpinLock' ('spinlock_t'), 'LockedBy' and 'CondVar' (uses 'wait_queue_head_t'), plus macros such as 'static_lock_class!' and 'new_spinlock!'. In particular, 'Lock' and 'Guard' are generic implementations that contain code that is common to all locks. Then, different backends (the new 'Backend' trait) are implemented and used to define types like 'Mutex': type Mutex<T> = Lock<T, MutexBackend>; In addition, new methods 'assume_init()', 'init_with()' and 'pin_init_with()' for 'UniqueArc<MaybeUninit<T>>' and 'downcast()' for 'Arc<dyn Any + Send + Sync>'; as well as 'Debug' and 'Display' implementations for 'Arc' and 'UniqueArc'. Reduced stack usage of 'UniqueArc::try_new_uninit()', too. - 'types' module: New trait 'AlwaysRefCounted' and new type 'ARef' (an owned reference to an always-reference-counted object, meant to be used in wrappers for C types that have their own ref counting functions). Moreover, new associated functions 'raw_get()' and 'ffi_init()' for 'Opaque'. - New 'task' module with a new type 'Task' ('struct task_struct'), and a new macro 'current!' to safely get a reference to the current one. - New 'ioctl' module with new '_IOC*' const functions (equivalent to the C macros). - New 'uapi' crate, intended to be accessible by drivers directly. - 'macros' crate: new 'quote!' macro (similar to the one provided in userspace by the 'quote' crate); and the 'module!' macro now allows specifying multiple module aliases. - 'error' module: New associated functions for the 'Error' type, such as 'from_errno()' and new functions such as 'to_result()'. - 'alloc' crate: More fallible 'Vec' methods: 'try_resize` and 'try_extend_from_slice' and the infrastructure (imported from the Rust standard library) they need" * tag 'rust-6.4' of https://github.com/Rust-for-Linux/linux: (44 commits) rust: ioctl: Add ioctl number manipulation functions rust: uapi: Add UAPI crate rust: sync: introduce `CondVar` rust: lock: add `Guard::do_unlocked` rust: sync: introduce `LockedBy` rust: introduce `current` rust: add basic `Task` rust: introduce `ARef` rust: lock: introduce `SpinLock` rust: lock: introduce `Mutex` rust: sync: introduce `Lock` and `Guard` rust: sync: introduce `LockClassKey` MAINTAINERS: add Benno Lossin as Rust reviewer rust: init: broaden the blanket impl of `Init` rust: sync: add functions for initializing `UniqueArc<MaybeUninit<T>>` rust: sync: reduce stack usage of `UniqueArc::try_new_uninit` rust: types: add `Opaque::ffi_init` rust: prelude: add `pin-init` API items to prelude rust: init: add `Zeroable` trait and `init::zeroed` function rust: init: add `stack_pin_init!` macro ...
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git://git.kernel.org/pub/scm/linux/kernel/git/efi/efiLinus Torvalds authored
Pull EFI updates from Ard Biesheuvel: - relocate the LoongArch kernel if the preferred address is already occupied - implement BTI annotations for arm64 EFI stub and zboot images - clean up arm64 zboot Kbuild rules for injecting the kernel code size * tag 'efi-next-for-v6.4' of git://git.kernel.org/pub/scm/linux/kernel/git/efi/efi: efi/zboot: arm64: Grab code size from ELF symbol in payload efi/zboot: arm64: Inject kernel code size symbol into the zboot payload efi/zboot: Set forward edge CFI compat header flag if supported efi/zboot: Add BSS padding before compression arm64: efi: Enable BTI codegen and add PE/COFF annotation efi/pe: Import new BTI/IBT header flags from the spec efi/loongarch: Reintroduce efi_relocate_kernel() to relocate kernel
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git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supplyLinus Torvalds authored
Pull power supply and reset updates from Sebastian Reichel: - power-supply core support for automatic handling of constant battery data supplied by firmware - generic-adc-battery: major cleanup - axp288_charger: fix ACPI issues on x86 Android tablets - rk817: cleanup and fix handling for low state of charge * tag 'for-v6.4' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply: (26 commits) power: supply: rk817: Fix low SOC bugs power: supply: rk817: Drop unneeded debugging code power: supply: axp288_charger: Use alt usb-id extcon on some x86 android tablets power: supply: generic-adc-battery: style fixes power: supply: generic-adc-battery: improve error message power: supply: generic-adc-battery: update copyright info power: supply: generic-adc-battery: add DT support power: supply: generic-adc-battery: add temperature support power: supply: generic-adc-battery: simplify read_channel logic power: supply: generic-adc-battery: use simple-battery API power: supply: generic-adc-battery: drop memory alloc error message power: supply: generic-adc-battery: drop charge now support power: supply: generic-adc-battery: drop jitter delay support power: supply: generic-adc-battery: fix unit scaling power: supply: generic-adc-battery: convert to managed resources power: supply: core: auto-exposure of simple-battery data dt-bindings: power: supply: adc-battery: add binding power: supply: bq256xx: Support to disable charger power: supply: charger-manager: Use of_property_read_bool() for boolean properties power: reset: qcom-pon: drop of_match_ptr for ID table ...
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git://git.kernel.org/pub/scm/linux/kernel/git/clk/linuxLinus Torvalds authored
Pull clk updates from Stephen Boyd: "Nothing looks out of the ordinary in this batch of clk driver updates. There are a couple patches to the core clk framework, but they're all basically cleanups or debugging aids. The driver updates and new additions are dominated in the diffstat by Qualcomm and MediaTek drivers. Qualcomm gained a handful of new drivers for various SoCs, and MediaTek gained a bunch of drivers for MT8188. The MediaTek drivers are being modernized as well, so there are updates all over that vendor's clk drivers. There's also a couple other new clk drivers in here, for example the Starfive JH7110 SoC support is added. Outside of the two major SoC vendors though, we have the usual collection of non-critical fixes and cleanups to various clk drivers. It's good to see that we're getting more cleanups and modernization patches. Maybe one day we'll be able to properly split clk providers from clk consumers. Core: - Print an informational message before disabling unused clks New Drivers: - BCM63268 timer clock and reset controller - Frequency Hopping (FHCTL) on MediaTek MT6795, MT8173, MT8192 and MT8195 SoCs - Mediatek MT8188 SoC clk drivers - Clock driver for Sunplus SP7021 SoC - Clk driver support for Loongson-2 SoCs - Clock driver for Skyworks Si521xx I2C PCIe clock generators - Initial Starfive JH7110 clk/reset support - Global clock controller drivers for Qualcomm SM7150, IPQ9574, MSM8917 and IPQ5332 SoCs - GPU clock controller drivers for SM6115, SM6125, SM6375 and SA8775P SoCs Updates: - Shrink size of clk_fractional_divider a little - Convert various clk drivers to devm_of_clk_add_hw_provider() - Convert platform clk drivers to remove_new() - Converted most Mediatek clock drivers to struct platform_driver - MediaTek clock drivers can be built as modules - Reimplement Loongson-1 clk driver with DT support - Migrate socfpga clk driver to of_clk_add_hw_provider() - Support for i3c clks on Aspeed ast2600 SoCs - Add clock generic devm_clk_hw_register_gate_parent_data - Add audiomix block control for i.MX8MP - Add support for determine_rate to i.MX composite-8m - Let the LCDIF Pixel clock of i.MX8MM and i.MX8MN set parent rate - Provide clock name in error message for clk-gpr-mux on get parent failure - Drop duplicate imx_clk_mux_flags macro - Register the i.MX8MP Media Disp2 Pix clock as bus clock - Add Media LDB root clock to i.MX8MP - Make i.MX8MP nand_usdhc_bus clock as non-critical - Fix the rate table for i.MX fracn-gppll - Disable HW control for the fracn-gppll in order to be controlled by register write - Add support for interger PLL in fracn-gppll - Add mcore_booted module parameter to i.MX93 provider - Add NIC, A55 and ARM PLL clocks to i.MX93 - Fix i.MX8ULP XBAR_DIVBUS and AD_SLOW clock parents - Use "divider closest" clock type for PLL4_PFD dividers on i.MX8ULP to get more accurate clock rates - Mark the MU0_Bi and TPM5 clocks on i.MX8ULP as critical - Update some of the i.MX critical clocks flags to allow glitchless on-the-fly rate change. - Add I2C5 clock on Renesas R-Car V3H - Exynos850: Add CMU_G3D clock controller for the Mali GPU - Extract Exynos5433 (ARM64) clock controller power management code to common driver parts - Exynos850: make PMU_ALIVE_PCLK clock critical - Add Audio, thermal, camera (CSI-2), Image Signal Processor/Channel Selector (ISPCS), and video capture (VIN) clocks on Renesas R-Car V4H - Add video capture (VIN) clocks on Renesas R-Car V3H - Add Cortex-A53 System CPU (Z2) clocks on Renesas R-Car V3M and V3H - Support for Stromer Plus PLL on Qualcomm IPQ5332 - Add a missing reset to Qualcomm QCM2290 - Migrate Qualcomm IPQ4019 to clk_parent_data - Make USB GDSCs enter retention state when disabled on Qualcomm SM6375, MSM8996 and MSM8998 SoCs - Set floor rounding clk_ops for Qualcomm QCM2290 SDCC2 clk - Add two EMAC GDSCs on Qualcomm SC8280XP - Use shared rcg clk ops in Qualcomm SM6115 GCC - Park Qualcomm SM8350 PCIe PIPE clks when disabled - Add GDSCs to Qualcomm SC7280 LPASS audio clock controller - Add missing XO clocks to Qualcomm MSM8226 and MSM8974 - Convert some Qualcomm clk DT bindings to YAML - Reparenting fix for the clock supplying camera modules on Rockchip rk3399 - Mark more critical (bus-)clocks on Rockchip rk3588" * tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux: (290 commits) clk: qcom: gcc-sc8280xp: Add EMAC GDSCs clk: starfive: Delete the redundant dev_set_drvdata() in JH7110 clock drivers clk: rockchip: rk3588: make gate linked clocks critical clk: qcom: dispcc-qcm2290: Remove inexistent DSI1PHY clk clk: qcom: add the GPUCC driver for sa8775p dt-bindings: clock: qcom: describe the GPUCC clock for SA8775P clk: qcom: gcc-sm8350: fix PCIe PIPE clocks handling clk: qcom: lpassaudiocc-sc7280: Add required gdsc power domain clks in lpass_cc_sc7280_desc clk: qcom: lpasscc-sc7280: Skip qdsp6ss clock registration dt-bindings: clock: qcom,sc7280-lpasscc: Add qcom,adsp-pil-mode property clk: starfive: Avoid casting iomem pointers clk: microchip: fix potential UAF in auxdev release callback clk: qcom: rpm: Use managed `of_clk_add_hw_provider()` clk: mediatek: fhctl: Mark local variables static clk: sifive: make SiFive clk drivers depend on ARCH_ symbols clk: uniphier: Use managed `of_clk_add_hw_provider()` clk: si5351: Use managed `of_clk_add_hw_provider()` clk: si570: Use managed `of_clk_add_hw_provider()` clk: si514: Use managed `of_clk_add_hw_provider()` clk: lmk04832: Use managed `of_clk_add_hw_provider()` ...
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git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdmaLinus Torvalds authored
Pull rdma updates from Jason Gunthorpe: "Usual wide collection of unrelated items in drivers: - Driver bug fixes and treewide cleanups in hfi1, siw, qib, mlx5, rxe, usnic, usnic, bnxt_re, ocrdma, iser: - remove unnecessary NULL checks - kmap obsolescence - pci_enable_pcie_error_reporting() obsolescence - unused variables and macros - trace event related warnings - casting warnings - Code cleanups for irdm and erdma - EFA reporting of 128 byte PCIe TLP support - mlx5 more agressively uses the out of order HW feature - Big rework of how state machines and tasks work in rxe - Fix a syzkaller found crash netdev refcount leak in siw - bnxt_re revises their HW description header - Congestion control for bnxt_re - Use mmu_notifiers more safely in hfi1 - mlx5 gets better support for PCIe relaxed ordering inside VMs" * tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma: (81 commits) RDMA/efa: Add rdma write capability to device caps RDMA/mlx5: Use correct device num_ports when modify DC RDMA/irdma: Drop spurious WQ_UNBOUND from alloc_ordered_workqueue() call RDMA/rxe: Fix spinlock recursion deadlock on requester RDMA/mlx5: Fix flow counter query via DEVX RDMA/rxe: Protect QP state with qp->state_lock RDMA/rxe: Move code to check if drained to subroutine RDMA/rxe: Remove qp->req.state RDMA/rxe: Remove qp->comp.state RDMA/rxe: Remove qp->resp.state RDMA/mlx5: Allow relaxed ordering read in VFs and VMs net/mlx5: Update relaxed ordering read HCA capabilities RDMA/mlx5: Check pcie_relaxed_ordering_enabled() in UMR RDMA/mlx5: Remove pcie_relaxed_ordering_enabled() check for RO write RDMA: Add ib_virt_dma_to_page() RDMA/rxe: Fix the error "trying to register non-static key in rxe_cleanup_task" RDMA/irdma: Slightly optimize irdma_form_ah_cm_frame() RDMA/rxe: Fix incorrect TASKLET_STATE_SCHED check in rxe_task.c IB/hfi1: Place struct mmu_rb_handler on cache line start IB/hfi1: Fix bugs with non-PAGE_SIZE-end multi-iovec user SDMA requests ...
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- 29 Apr, 2023 17 commits
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git://git.samba.org/ksmbdLinus Torvalds authored
Pull ksmbd server updates from Steve French: - SMB3.1.1 negotiate context fixes and cleanup - new lock_rename_child VFS helper - ksmbd fix to avoid unlink race and to use the new VFS helper to avoid rename race * tag '6.4-rc-ksmbd-server-fixes' of git://git.samba.org/ksmbd: ksmbd: fix racy issue from using ->d_parent and ->d_name ksmbd: remove unused compression negotiate ctx packing ksmbd: avoid duplicate negotiate ctx offset increments ksmbd: set NegotiateContextCount once instead of every inc fs: introduce lock_rename_child() helper ksmbd: remove internal.h include
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git://git.kernel.org/pub/scm/linux/kernel/git/cel/linuxLinus Torvalds authored
Pull nfsd updates from Chuck Lever: "The big ticket item for this release is that support for RPC-with-TLS [RFC 9289] has been added to the Linux NFS server. The goal is to provide a simple-to-deploy, low-overhead in-transit confidentiality and peer authentication mechanism. It can supplement NFS Kerberos and it can protect the use of legacy non-cryptographic user authentication flavors such as AUTH_SYS. The TLS Record protocol is handled entirely by kTLS, meaning it can use either software encryption or offload encryption to smart NICs. Aside from that, work continues on improving NFSD's open file cache. Among the many clean-ups in that area is a patch to convert the rhashtable to use the list-hashing version of that data structure" * tag 'nfsd-6.4' of git://git.kernel.org/pub/scm/linux/kernel/git/cel/linux: (31 commits) NFSD: Handle new xprtsec= export option SUNRPC: Support TLS handshake in the server-side TCP socket code NFSD: Clean up xattr memory allocation flags NFSD: Fix problem of COMMIT and NFS4ERR_DELAY in infinite loop SUNRPC: Clear rq_xid when receiving a new RPC Call SUNRPC: Recognize control messages in server-side TCP socket code SUNRPC: Be even lazier about releasing pages SUNRPC: Convert svc_xprt_release() to the release_pages() API SUNRPC: Relocate svc_free_res_pages() nfsd: simplify the delayed disposal list code SUNRPC: Ignore return value of ->xpo_sendto SUNRPC: Ensure server-side sockets have a sock->file NFSD: Watch for rq_pages bounds checking errors in nfsd_splice_actor() sunrpc: simplify two-level sysctl registration for svcrdma_parm_table SUNRPC: return proper error from get_expiry() lockd: add some client-side tracepoints nfs: move nfs_fhandle_hash to common include file lockd: server should unlock lock if client rejects the grant lockd: fix races in client GRANTED_MSG wait logic lockd: move struct nlm_wait to lockd.h ...
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git://git.linux-nfs.org/projects/anna/linux-nfsLinus Torvalds authored
Pull NFS client updates from Anna Schumaker: "New Features: - Convert the readdir path to use folios - Convert the NFS fscache code to use netfs Bugfixes and Cleanups: - Always send a RECLAIM_COMPLETE after establishing a lease - Simplify sysctl registrations and other cleanups - Handle out-of-order write replies on NFS v3 - Have sunrpc call_bind_status use standard hard/soft task semantics - Other minor cleanups" * tag 'nfs-for-6.4-1' of git://git.linux-nfs.org/projects/anna/linux-nfs: NFSv4.2: Rework scratch handling for READ_PLUS NFS: Cleanup unused rpc_clnt variable NFS: set varaiable nfs_netfs_debug_id storage-class-specifier to static SUNRPC: remove the maximum number of retries in call_bind_status NFS: Convert readdir page array functions to use a folio NFS: Convert the readdir array-of-pages into an array-of-folios NFSv3: handle out-of-order write replies. NFS: Remove fscache specific trace points and NFS_INO_FSCACHE bit NFS: Remove all NFSIOS_FSCACHE counters due to conversion to netfs API NFS: Convert buffered read paths to use netfs when fscache is enabled NFS: Configure support for netfs when NFS fscache is configured NFS: Rename readpage_async_filler to nfs_read_add_folio sunrpc: simplify one-level sysctl registration for debug_table sunrpc: move sunrpc_table and proc routines above sunrpc: simplify one-level sysctl registration for xs_tunables_table sunrpc: simplify one-level sysctl registration for xr_tunables_table nfs: simplify two-level sysctl registration for nfs_cb_sysctls nfs: simplify two-level sysctl registration for nfs4_cb_sysctls lockd: simplify two-level sysctl registration for nlm_sysctls NFSv4.1: Always send a RECLAIM_COMPLETE after establishing lease
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https://github.com/Paragon-Software-Group/linux-ntfs3Linus Torvalds authored
Pull ntfs3 updates from Konstantin Komarov: "New code: - add missed "nocase" in ntfs_show_options - extend information on failures/errors - small optimizations Fixes: - some logic errors - some dead code was removed - code is refactored and reformatted according to the new version of clang-format Code removal: - 'noacsrules' option. Currently, this option does not work properly, and its use leads to unstable results. If we figure out how to implement it without errors, we will add it later - writepage" * tag 'ntfs3_for_6.4' of https://github.com/Paragon-Software-Group/linux-ntfs3: (30 commits) fs/ntfs3: Fix root inode checking fs/ntfs3: Print details about mount fails fs/ntfs3: Add missed "nocase" in ntfs_show_options fs/ntfs3: Code formatting and refactoring fs/ntfs3: Changed ntfs_get_acl() to use dentry fs/ntfs3: Remove field sbi->used.bitmap.set_tail fs/ntfs3: Undo critial modificatins to keep directory consistency fs/ntfs3: Undo endian changes fs/ntfs3: Optimization in ntfs_set_state() fs/ntfs3: Fix ntfs_create_inode() fs/ntfs3: Remove noacsrules fs/ntfs3: Use bh_read to simplify code fs/ntfs3: Fix a possible null-pointer dereference in ni_clear() fs/ntfs3: Refactoring of various minor issues fs/ntfs3: Restore overflow checking for attr size in mi_enum_attr fs/ntfs3: Check for extremely large size of $AttrDef fs/ntfs3: Improved checking of attribute's name length fs/ntfs3: Add null pointer checks fs/ntfs3: fix spelling mistake "attibute" -> "attribute" fs/ntfs3: Add length check in indx_get_root ...
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git://git.kernel.org/pub/scm/fs/xfs/xfs-linuxLinus Torvalds authored
Pull xfs updates from Dave Chinner: "This consists mainly of online scrub functionality and the design documentation for the upcoming online repair functionality built on top of the scrub code: - Added detailed design documentation for the upcoming online repair feature - major update to online scrub to complete the reverse mapping cross-referencing infrastructure enabling us to fully validate allocated metadata against owner records. This is the last piece of scrub infrastructure needed before we can start merging online repair functionality. - Fixes for the ascii-ci hashing issues - deprecation of the ascii-ci functionality - on-disk format verification bug fixes - various random bug fixes for syzbot and other bug reports" * tag 'xfs-6.4-merge-1' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux: (107 commits) xfs: fix livelock in delayed allocation at ENOSPC xfs: Extend table marker on deprecated mount options table xfs: fix duplicate includes xfs: fix BUG_ON in xfs_getbmap() xfs: verify buffer contents when we skip log replay xfs: _{attr,data}_map_shared should take ILOCK_EXCL until iread_extents is completely done xfs: remove WARN when dquot cache insertion fails xfs: don't consider future format versions valid xfs: deprecate the ascii-ci feature xfs: test the ascii case-insensitive hash xfs: stabilize the dirent name transformation function used for ascii-ci dir hash computation xfs: cross-reference rmap records with refcount btrees xfs: cross-reference rmap records with inode btrees xfs: cross-reference rmap records with free space btrees xfs: cross-reference rmap records with ag btrees xfs: introduce bitmap type for AG blocks xfs: convert xbitmap to interval tree xfs: drop the _safe behavior from the xbitmap foreach macro xfs: don't load local xattr values during scrub xfs: remove the for_each_xbitmap_ helpers ...
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git://git.kernel.org/pub/scm/fs/xfs/xfs-linuxLinus Torvalds authored
Pull iomap updates from Darrick Wong: "The only changes for this cycle are the addition of tracepoints to the iomap directio code so that Ritesh (who is working on porting ext2 to iomap) can observe the io flows more easily. Summary: - Remove an unused symbol - Add tracepoints for the directio code" * tag 'iomap-6.4-merge-1' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux: iomap: Add DIO tracepoints iomap: Remove IOMAP_DIO_NOSYNC unused dio flag fs.h: Add TRACE_IOCB_STRINGS for use in trace points
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git://git.infradead.org/users/hch/dma-mappingLinus Torvalds authored
Pull dma-mapping updates from Christoph Hellwig: - fix a PageHighMem check in dma-coherent initialization (Doug Berger) - clean up the coherency defaul initialiation (Jiaxun Yang) - add cacheline to user/kernel dma-debug space dump messages (Desnes Nunes, Geert Uytterhoeve) - swiotlb statistics improvements (Michael Kelley) - misc cleanups (Petr Tesarik) * tag 'dma-mapping-6.4-2023-04-28' of git://git.infradead.org/users/hch/dma-mapping: swiotlb: Omit total_used and used_hiwater if !CONFIG_DEBUG_FS swiotlb: track and report io_tlb_used high water marks in debugfs swiotlb: fix debugfs reporting of reserved memory pools swiotlb: relocate PageHighMem test away from rmem_swiotlb_setup of: address: always use dma_default_coherent for default coherency dma-mapping: provide CONFIG_ARCH_DMA_DEFAULT_COHERENT dma-mapping: provide a fallback dma_default_coherent dma-debug: Use %pa to format phys_addr_t dma-debug: add cacheline to user/kernel space dump messages dma-debug: small dma_debug_entry's comment and variable name updates dma-direct: cleanup parameters to dma_direct_optimal_gfp_mask
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull more timer updates from Thomas Gleixner: "Timekeeping and clocksource/event driver updates the second batch: - A trivial documentation fix in the timekeeping core - A really boring set of small fixes, enhancements and cleanups in the drivers code. No new clocksource/clockevent drivers for a change" * tag 'timers-core-2023-04-28' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: timekeeping: Fix references to nonexistent ktime_get_fast_ns() dt-bindings: timer: rockchip: Add rk3588 compatible dt-bindings: timer: rockchip: Drop superfluous rk3288 compatible clocksource/drivers/ti: Use of_property_read_bool() for boolean properties clocksource/drivers/timer-ti-dm: Fix finding alwon timer clocksource/drivers/davinci: Fix memory leak in davinci_timer_register when init fails clocksource/drivers/stm32-lp: Drop of_match_ptr for ID table clocksource/drivers/timer-ti-dm: Convert to platform remove callback returning void clocksource/drivers/timer-tegra186: Convert to platform remove callback returning void clocksource/drivers/timer-ti-dm: Improve error message in .remove clocksource/drivers/timer-stm32-lp: Mark driver as non-removable clocksource/drivers/sh_mtu2: Mark driver as non-removable clocksource/drivers/timer-ti-dm: Use of_address_to_resource() clocksource/drivers/timer-imx-gpt: Remove non-DT function clocksource/drivers/timer-mediatek: Split out CPUXGPT timers clocksource/drivers/exynos_mct: Explicitly return 0 for shared timer
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git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/lsmLinus Torvalds authored
Pull lsm fix from Paul Moore: "A single Documentation/LSM fix to update the LSM hook documentation references from lsm_hooks.h to security.c" * tag 'lsm-pr-20230428' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/lsm: lsm: move hook comments docs to security/security.c
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git://git.kernel.org/pub/scm/linux/kernel/git/zohar/linux-integrityLinus Torvalds authored
Pull integrity update from Mimi Zohar: "Just one one bug fix. Other integrity changes are being upstreamed via the tpm and lsm trees" * tag 'integrity-v6.4' of git://git.kernel.org/pub/scm/linux/kernel/git/zohar/linux-integrity: IMA: allow/fix UML builds
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git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroupLinus Torvalds authored
Pull cgroup updates from Tejun Heo: - cpuset changes including the fix for an incorrect interaction with CPU hotplug and an optimization - Other doc and cosmetic changes * tag 'cgroup-for-6.4' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup: docs: cgroup-v1/cpusets: update libcgroup project link cgroup/cpuset: Minor updates to test_cpuset_prs.sh cgroup/cpuset: Include offline CPUs when tasks' cpumasks in top_cpuset are updated cgroup/cpuset: Skip task update if hotplug doesn't affect current cpuset cpuset: Clean up cpuset_node_allowed cgroup: bpf: use cgroup_lock()/cgroup_unlock() wrappers
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git://git.kernel.org/pub/scm/linux/kernel/git/tj/wqLinus Torvalds authored
Pull workqueue updates from Tejun Heo: "Mostly changes from Petr to improve warning and error reporting. Workqueue now reports more of the relevant failures with better context which should help debugging" * tag 'wq-for-6.4' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq: workqueue: Introduce show_freezable_workqueues workqueue: Print backtraces from CPUs with hung CPU bound workqueues workqueue: Warn when a rescuer could not be created workqueue: Interrupted create_worker() is not a repeated event workqueue: Warn when a new worker could not be created workqueue: Fix hung time report of worker pools workqueue: Simplify a pr_warn() call in wq_select_unbound_cpu() MAINTAINERS: Add workqueue_internal.h to the WORKQUEUE entry
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Steve French authored
From 2.42 to 2.43 Signed-off-by:
Steve French <stfrench@microsoft.com>
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Steve French authored
create durable and create durable reconnect context and the maximal access create context struct definitions can be put in common code in smbfs_common Reviewed-by:
Paulo Alcantara (SUSE) <pc@manguebit.com> Signed-off-by:
Steve French <stfrench@microsoft.com>
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Steve French authored
cifs and ksmbd were using a slightly different version of the query_on_disk_id struct which could be confusing. Use the ksmbd version of this struct, and move it to common code. Reviewed-by:
Paulo Alcantara (SUSE) <pc@manguebit.com> Signed-off-by:
Steve French <stfrench@microsoft.com>
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Steve French authored
Also update these flag names in a few places to match the simpler easier to understand names now used in the protocol documentation (see MS-SMB2 section 2.2.10) Acked-by:
Bharath SM <bharathsm@microsoft.com> Reviewed-by:
Paulo Alcantara (SUSE) <pc@manguebit.com> Signed-off-by:
Steve French <stfrench@microsoft.com>
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Steve French authored
Coverity noted a place where we were not grabbing the ses_lock when setting (and checking) ses_status. Addresses-Coverity: 1536833 ("Data race condition (MISSING_LOCK)") Reviewed-by:
Paulo Alcantara (SUSE) <pc@manguebit.com> Reviewed-by:
Bharath SM <bharathsm@microsoft.com> Signed-off-by:
Steve French <stfrench@microsoft.com>
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- 28 Apr, 2023 5 commits
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git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linuxLinus Torvalds authored
Pull RISC-V updates from Palmer Dabbelt: - Support for runtime detection of the Svnapot extension - Support for Zicboz when clearing pages - We've moved to GENERIC_ENTRY - Support for !MMU on rv32 systems - The linear region is now mapped via huge pages - Support for building relocatable kernels - Support for the hwprobe interface - Various fixes and cleanups throughout the tree * tag 'riscv-for-linus-6.4-mw1' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux: (57 commits) RISC-V: hwprobe: Explicity check for -1 in vdso init RISC-V: hwprobe: There can only be one first riscv: Allow to downgrade paging mode from the command line dt-bindings: riscv: add sv57 mmu-type RISC-V: hwprobe: Remove __init on probe_vendor_features() riscv: Use --emit-relocs in order to move .rela.dyn in init riscv: Check relocations at compile time powerpc: Move script to check relocations at compile time in scripts/ riscv: Introduce CONFIG_RELOCATABLE riscv: Move .rela.dyn outside of init to avoid empty relocations riscv: Prepare EFI header for relocatable kernels riscv: Unconditionnally select KASAN_VMALLOC if KASAN riscv: Fix ptdump when KASAN is enabled riscv: Fix EFI stub usage of KASAN instrumented strcmp function riscv: Move DTB_EARLY_BASE_VA to the kernel address space riscv: Rework kasan population functions riscv: Split early and final KASAN population functions riscv: Use PUD/P4D/PGD pages for the linear mapping riscv: Move the linear mapping creation in its own function riscv: Get rid of riscv_pfn_base variable ...
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git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommuLinus Torvalds authored
Pull m68knommu updates from Greg Ungerer: "A couple of minor changes. One to remove the long dead uclinux.org web address and email list from the MAINTAINERS entry for UCLINUX. The other to remove dead config options in the m68knommu Kconfig" * tag 'm68knommu-for-v6.4' of git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu: m68k: Kconfig.machine: remove obsolete configs ROMBASE and ROMSIZE MAINTAINERS: drop uclinux.org
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git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linuxLinus Torvalds authored
Pull powerpc updates from Michael Ellerman: - Add support for building the kernel using PC-relative addressing on Power10. - Allow HV KVM guests on Power10 to use prefixed instructions. - Unify support for the P2020 CPU (85xx) into a single machine description. - Always build the 64-bit kernel with 128-bit long double. - Drop support for several obsolete 2000's era development boards as identified by Paul Gortmaker. - A series fixing VFIO on Power since some generic changes. - Various other small features and fixes. Thanks to Alexey Kardashevskiy, Andrew Donnellan, Benjamin Gray, Bo Liu, Christophe Leroy, Dan Carpenter, David Binderman, Ira Weiny, Joel Stanley, Kajol Jain, Kautuk Consul, Liang He, Luis Chamberlain, Masahiro Yamada, Michael Neuling, Nathan Chancellor, Nathan Lynch, Nicholas Miehlbradt, Nicholas Piggin, Nick Desaulniers, Nysal Jan K.A, Pali Rohár, Paul Gortmaker, Paul Mackerras, Petr Vaněk, Randy Dunlap, Rob Herring, Sachin Sant, Sean Christopherson, Segher Boessenkool, and Timothy Pearson. * tag 'powerpc-6.4-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: (156 commits) powerpc/64s: Disable pcrel code model on Clang powerpc: Fix merge conflict between pcrel and copy_thread changes powerpc/configs/powernv: Add IGB=y powerpc/configs/64s: Drop JFS Filesystem powerpc/configs/64s: Use EXT4 to mount EXT2 filesystems powerpc/configs: Make pseries_defconfig an alias for ppc64le_guest powerpc/configs: Make pseries_le an alias for ppc64le_guest powerpc/configs: Incorporate generic kvm_guest.config into guest configs powerpc/configs: Add IBMVETH=y and IBMVNIC=y to guest configs powerpc/configs/64s: Enable Device Mapper options powerpc/configs/64s: Enable PSTORE powerpc/configs/64s: Enable VLAN support powerpc/configs/64s: Enable BLK_DEV_NVME powerpc/configs/64s: Drop REISERFS powerpc/configs/64s: Use SHA512 for module signatures powerpc/configs/64s: Enable IO_STRICT_DEVMEM powerpc/configs/64s: Enable SCHEDSTATS powerpc/configs/64s: Enable DEBUG_VM & other options powerpc/configs/64s: Enable EMULATED_STATS powerpc/configs/64s: Enable KUNIT and most tests ...
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git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-traceLinus Torvalds authored
Pull tracing tools updates from Steven Rostedt: - Add auto-analysis only option to rtla/timerlat Add an --aa-only option to the tooling to perform only the auto analysis and not to parse and format the data. - Other minor fixes and clean ups * tag 'trace-tools-v6.4' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace: rtla/timerlat: Fix "Previous IRQ" auto analysis' line rtla/timerlat: Add auto-analysis only option rv: Remove redundant assignment to variable retval rv: Fix addition on an uninitialized variable 'run' rtla: Add .gitignore file
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git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-traceLinus Torvalds authored
Pull tracing updates from Steven Rostedt: - User events are finally ready! After lots of collaboration between various parties, we finally locked down on a stable interface for user events that can also work with user space only tracing. This is implemented by telling the kernel (or user space library, but that part is user space only and not part of this patch set), where the variable is that the application uses to know if something is listening to the trace. There's also an interface to tell the kernel about these events, which will show up in the /sys/kernel/tracing/events/user_events/ directory, where it can be enabled. When it's enabled, the kernel will update the variable, to tell the application to start writing to the kernel. See https://lwn.net/Articles/927595/ - Cleaned up the direct trampolines code to simplify arm64 addition of direct trampolines. Direct trampolines use the ftrace interface but instead of jumping to the ftrace trampoline, applications (mostly BPF) can register their own trampoline for performance reasons. - Some updates to the fprobe infrastructure. fprobes are more efficient than kprobes, as it does not need to save all the registers that kprobes on ftrace do. More work needs to be done before the fprobes will be exposed as dynamic events. - More updates to references to the obsolete path of /sys/kernel/debug/tracing for the new /sys/kernel/tracing path. - Add a seq_buf_do_printk() helper to seq_bufs, to print a large buffer line by line instead of all at once. There are users in production kernels that have a large data dump that originally used printk() directly, but the data dump was larger than what printk() allowed as a single print. Using seq_buf() to do the printing fixes that. - Add /sys/kernel/tracing/touched_functions that shows all functions that was every traced by ftrace or a direct trampoline. This is used for debugging issues where a traced function could have caused a crash by a bpf program or live patching. - Add a "fields" option that is similar to "raw" but outputs the fields of the events. It's easier to read by humans. - Some minor fixes and clean ups. * tag 'trace-v6.4' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace: (41 commits) ring-buffer: Sync IRQ works before buffer destruction tracing: Add missing spaces in trace_print_hex_seq() ring-buffer: Ensure proper resetting of atomic variables in ring_buffer_reset_online_cpus recordmcount: Fix memory leaks in the uwrite function tracing/user_events: Limit max fault-in attempts tracing/user_events: Prevent same address and bit per process tracing/user_events: Ensure bit is cleared on unregister tracing/user_events: Ensure write index cannot be negative seq_buf: Add seq_buf_do_printk() helper tracing: Fix print_fields() for __dyn_loc/__rel_loc tracing/user_events: Set event filter_type from type ring-buffer: Clearly check null ptr returned by rb_set_head_page() tracing: Unbreak user events tracing/user_events: Use print_format_fields() for trace output tracing/user_events: Align structs with tabs for readability tracing/user_events: Limit global user_event count tracing/user_events: Charge event allocs to cgroups tracing/user_events: Update documentation for ABI tracing/user_events: Use write ABI in example tracing/user_events: Add ABI self-test ...
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