- Jun 27, 2023
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull x86 tdx updates from Dave Hansen: - Fix a race window where load_unaligned_zeropad() could cause a fatal shutdown during TDX private<=>shared conversion The race has never been observed in practice but might allow load_unaligned_zeropad() to catch a TDX page in the middle of its conversion process which would lead to a fatal and unrecoverable guest shutdown. - Annotate sites where VM "exit reasons" are reused as hypercall numbers. * tag 'x86_tdx_for_6.5' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/mm: Fix enc_status_change_finish_noop() x86/tdx: Fix race between set_memory_encrypted() and load_unaligned_zeropad() x86/mm: Allow guest.enc_status_change_prepare() to fail x86/tdx: Wrap exit reason with hcall_func()
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull x86 platform updates from Dave Hansen: "Allow CPUs in SGX/HPE Ultraviolet to start using Sub-NUMA clustering (SNC) mode. SNC has been around outside the UV world for a while but evidently never worked on UV systems. SNC is rather notorious for breaking bad assumptions of a 1:1 relationship between physical sockets and NUMA nodes. The UV code was rather prolific with these assumptions and took quite a bit of refactoring to remove them" * tag 'x86_platform_for_6.5' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/platform/uv: Update UV[23] platform code for SNC x86/platform/uv: Remove remaining BUG_ON() and BUG() calls x86/platform/uv: UV support for sub-NUMA clustering x86/platform/uv: Helper functions for allocating and freeing conversion tables x86/platform/uv: When searching for minimums, start at INT_MAX not 99999 x86/platform/uv: Fix printed information in calc_mmioh_map x86/platform/uv: Introduce helper function uv_pnode_to_socket. x86/platform/uv: Add platform resolving #defines for misc GAM_MMIOH_REDIRECT*
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull x86 irq updates from Dave Hansen: "Add Hyper-V interrupts to /proc/stat" * tag 'x86_irq_for_6.5' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/irq: Add hardcoded hypervisor interrupts to /proc/stat
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull x86 cpu updates from Borislav Petkov: - Compute the purposeful misalignment of zen_untrain_ret automatically and assert __x86_return_thunk's alignment so that future changes to the symbol macros do not accidentally break them. - Remove CONFIG_X86_FEATURE_NAMES Kconfig option as its existence is pointless * tag 'x86_cpu_for_v6.5' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/retbleed: Add __x86_return_thunk alignment checks x86/cpu: Remove X86_FEATURE_NAMES x86/Kconfig: Make X86_FEATURE_NAMES non-configurable in prompt
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull x86 confidential computing update from Borislav Petkov: - Add support for unaccepted memory as specified in the UEFI spec v2.9. The gist of it all is that Intel TDX and AMD SEV-SNP confidential computing guests define the notion of accepting memory before using it and thus preventing a whole set of attacks against such guests like memory replay and the like. There are a couple of strategies of how memory should be accepted - the current implementation does an on-demand way of accepting. * tag 'x86_cc_for_v6.5' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: virt: sevguest: Add CONFIG_CRYPTO dependency x86/efi: Safely enable unaccepted memory in UEFI x86/sev: Add SNP-specific unaccepted memory support x86/sev: Use large PSC requests if applicable x86/sev: Allow for use of the early boot GHCB for PSC requests x86/sev: Put PSC struct on the stack in prep for unaccepted memory support x86/sev: Fix calculation of end address based on number of pages x86/tdx: Add unaccepted memory support x86/tdx: Refactor try_accept_one() x86/tdx: Make _tdx_hypercall() and __tdx_module_call() available in boot stub efi/unaccepted: Avoid load_unaligned_zeropad() stepping into unaccepted memory efi: Add unaccepted memory support x86/boot/compressed: Handle unaccepted memory efi/libstub: Implement support for unaccepted memory efi/x86: Get full memory map in allocate_e820() mm: Add support for unaccepted memory
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull x86 resource control updates from Borislav Petkov: - Implement a rename operation in resctrlfs to facilitate handling of application containers with dynamically changing task lists - When reading the tasks file, show the tasks' pid which are only in the current namespace as opposed to showing the pids from the init namespace too - Other fixes and improvements * tag 'x86_cache_for_v6.5' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: Documentation/x86: Documentation for MON group move feature x86/resctrl: Implement rename op for mon groups x86/resctrl: Factor rdtgroup lock for multi-file ops x86/resctrl: Only show tasks' pid in current pid namespace
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull x86 build update from Borislav Petkov: - Remove relocation information from vmlinux as it is not needed by other tooling and thus a slimmer binary is generated. This is important for distros who have to distribute vmlinux blobs with their kernel packages too and that extraneous unnecessary data bloats them for no good reason * tag 'x86_build_for_v6.5' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/build: Avoid relocation information in final vmlinux
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull x86 instruction alternatives updates from Borislav Petkov: - Up until now the Fast Short Rep Mov optimizations implied the presence of the ERMS CPUID flag. AMD decoupled them with a BIOS setting so decouple that dependency in the kernel code too - Teach the alternatives machinery to handle relocations - Make debug_alternative accept flags in order to see only that set of patching done one is interested in - Other fixes, cleanups and optimizations to the patching code * tag 'x86_alternatives_for_v6.5' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/alternative: PAUSE is not a NOP x86/alternatives: Add cond_resched() to text_poke_bp_batch() x86/nospec: Shorten RESET_CALL_DEPTH x86/alternatives: Add longer 64-bit NOPs x86/alternatives: Fix section mismatch warnings x86/alternative: Optimize returns patching x86/alternative: Complicate optimize_nops() some more x86/alternative: Rewrite optimize_nops() some x86/lib/memmove: Decouple ERMS from FSRM x86/alternative: Support relocations in alternatives x86/alternative: Make debug-alternative selective
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull RAS updates from Borislav Petkov: - Add initial support for RAS hardware found on AMD server GPUs (MI200). Those GPUs and CPUs are connected together through the coherent fabric and the GPU memory controllers report errors through x86's MCA so EDAC needs to support them. The amd64_edac driver supports now HBM (High Bandwidth Memory) and thus such heterogeneous memory controller systems - Other small cleanups and improvements * tag 'ras_core_for_v6.5' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: EDAC/amd64: Cache and use GPU node map EDAC/amd64: Add support for AMD heterogeneous Family 19h Model 30h-3Fh EDAC/amd64: Document heterogeneous system enumeration x86/MCE/AMD, EDAC/mce_amd: Decode UMC_V2 ECC errors x86/amd_nb: Re-sort and re-indent PCI defines x86/amd_nb: Add MI200 PCI IDs ras/debugfs: Fix error checking for debugfs_create_dir() x86/MCE: Check a hw error's address to determine proper recovery action
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git://git.kernel.org/pub/scm/linux/kernel/git/ras/rasLinus Torvalds authored
Pull EDAC updates from Borislav Petkov: - amd64_edac: Add support for Zen4 client hardware - amd64_edac: Remove the version string as it is useless and actively confusing when looking at backported versions of the driver - Add a driver for the Nuvoton NPCM memory controller - A debugfs error checking cleanup * tag 'edac_updates_for_v6.5' of git://git.kernel.org/pub/scm/linux/kernel/git/ras/ras: EDAC/npcm: Add NPCM memory controller driver dt-bindings: memory-controllers: nuvoton: Add NPCM memory controller EDAC/thunderx: Check debugfs file creation retval properly EDAC/amd64: Add support for ECC on family 19h model 60h-7Fh EDAC/amd64: Remove module version string
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ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull x86 core updates from Thomas Gleixner: "A set of fixes for kexec(), reboot and shutdown issues: - Ensure that the WBINVD in stop_this_cpu() has been completed before the control CPU proceedes. stop_this_cpu() is used for kexec(), reboot and shutdown to park the APs in a HLT loop. The control CPU sends an IPI to the APs and waits for their CPU online bits to be cleared. Once they all are marked "offline" it proceeds. But stop_this_cpu() clears the CPU online bit before issuing WBINVD, which means there is no guarantee that the AP has reached the HLT loop. This was reported to cause intermittent reboot/shutdown failures due to some dubious interaction with the firmware. This is not only a problem of WBINVD. The code to actually "stop" the CPU which runs between clearing the online bit and reaching the HLT loop can cause large enough delays on its own (think virtualization). That's especially dangerous for kexec() as kexec() expects that all APs are in a safe state and not executing code while the boot CPU jumps to the new kernel. There are more issues vs kexec() which are addressed separately. Cure this by implementing an explicit synchronization point right before the AP reaches HLT. This guarantees that the AP has completed the full stop proceedure. - Fix the condition for WBINVD in stop_this_cpu(). The WBINVD in stop_this_cpu() is required for ensuring that when switching to or from memory encryption no dirty data is left in the cache lines which might cause a write back in the wrong more later. This checks CPUID directly because the feature bit might have been cleared due to a command line option. But that CPUID check accesses leaf 0x8000001f::EAX unconditionally. Intel CPUs return the content of the highest supported leaf when a non-existing leaf is read, while AMD CPUs return all zeros for unsupported leafs. So the result of the test on Intel CPUs is lottery and on AMD its just correct by chance. While harmless it's incorrect and causes the conditional wbinvd() to be issued where not required, which caused the above issue to be unearthed. - Make kexec() robust against AP code execution Ashok observed triple faults when doing kexec() on a system which had been booted with "nosmt". It turned out that the SMT siblings which had been brought up partially are parked in mwait_play_dead() to enable power savings. mwait_play_dead() is monitoring the thread flags of the AP's idle task, which has been chosen as it's unlikely to be written to. But kexec() can overwrite the previous kernel text and data including page tables etc. When it overwrites the cache lines monitored by an AP that AP resumes execution after the MWAIT on eventually overwritten text, stack and page tables, which obviously might end up in a triple fault easily. Make this more robust in several steps: 1) Use an explicit per CPU cache line for monitoring. 2) Write a command to these cache lines to kick APs out of MWAIT before proceeding with kexec(), shutdown or reboot. The APs confirm the wakeup by writing status back and then enter a HLT loop. 3) If the system uses INIT/INIT/STARTUP for AP bringup, park the APs in INIT state. HLT is not a guarantee that an AP won't wake up and resume execution. HLT is woken up by NMI and SMI. SMI puts the CPU back into HLT (+/- firmware bugs), but NMI is delivered to the CPU which executes the NMI handler. Same issue as the MWAIT scenario described above. Sending an INIT/INIT sequence to the APs puts them into wait for STARTUP state, which is safe against NMI. There is still an issue remaining which can't be fixed: #MCE If the AP sits in HLT and receives a broadcast #MCE it will try to handle it with the obvious consequences. INIT/INIT clears CR4.MCE in the AP which will cause a broadcast #MCE to shut down the machine. So there is a choice between fire (HLT) and frying pan (INIT). Frying pan has been chosen as it's at least preventing the NMI issue. On systems which are not using INIT/INIT/STARTUP there is not much which can be done right now, but at least the obvious and easy to trigger MWAIT issue has been addressed" * tag 'x86-core-2023-06-26' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/smp: Put CPUs into INIT on shutdown if possible x86/smp: Split sending INIT IPI out into a helper function x86/smp: Cure kexec() vs. mwait_play_dead() breakage x86/smp: Use dedicated cache-line for mwait_play_dead() x86/smp: Remove pointless wmb()s from native_stop_other_cpus() x86/smp: Dont access non-existing CPUID leaf x86/smp: Make stop_other_cpus() more robust -
ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull timer updates from Thomas Gleixner: "Time, timekeeping and related device driver updates: Core: - A set of fixes, cleanups and enhancements to the posix timer code: - Prevent another possible live lock scenario in the exit() path, which affects POSIX_CPU_TIMERS_TASK_WORK enabled architectures. - Fix a loop termination issue which was reported syzcaller/KSAN in the posix timer ID allocation code. That triggered a deeper look into the posix-timer code which unearthed more small issues. - Add missing READ/WRITE_ONCE() annotations - Fix or remove completely outdated comments - Document places which are subtle and completely undocumented. - Add missing hrtimer modes to the trace event decoder - Small cleanups and enhancements all over the place Drivers: - Rework the Hyper-V clocksource and sched clock setup code - Remove a deprecated clocksource driver - Small fixes and enhancements all over the place" * tag 'timers-core-2023-06-26' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/tip/tip: (39 commits) clocksource/drivers/cadence-ttc: Fix memory leak in ttc_timer_probe dt-bindings: timers: Add Ralink SoCs timer clocksource/drivers/hyper-v: Rework clocksource and sched clock setup dt-bindings: timer: brcm,kona-timer: convert to YAML clocksource/drivers/imx-gpt: Fold <soc/imx/timer.h> into its only user clk: imx: Drop inclusion of unused header <soc/imx/timer.h> hrtimer: Add missing sparse annotations to hrtimer locking clocksource/drivers/imx-gpt: Use only a single name for functions clocksource/drivers/loongson1: Move PWM timer to clocksource framework dt-bindings: timer: Add Loongson-1 clocksource MIPS: Loongson32: Remove deprecated PWM timer clocksource clocksource/drivers/ingenic-timer: Use pm_sleep_ptr() macro tracing/timer: Add missing hrtimer modes to decode_hrtimer_mode(). posix-timers: Add sys_ni_posix_timers() prototype tick/rcu: Fix bogus ratelimit condition alarmtimer: Remove unnecessary (void *) cast alarmtimer: Remove unnecessary initialization of variable 'ret' posix-timers: Refer properly to CONFIG_HIGH_RES_TIMERS posix-timers: Polish coding style in a few places posix-timers: Remove pointless comments ... -
ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull SMP updates from Thomas Gleixner: "A large update for SMP management: - Parallel CPU bringup The reason why people are interested in parallel bringup is to shorten the (kexec) reboot time of cloud servers to reduce the downtime of the VM tenants. The current fully serialized bringup does the following per AP: 1) Prepare callbacks (allocate, intialize, create threads) 2) Kick the AP alive (e.g. INIT/SIPI on x86) 3) Wait for the AP to report alive state 4) Let the AP continue through the atomic bringup 5) Let the AP run the threaded bringup to full online state There are two significant delays: #3 The time for an AP to report alive state in start_secondary() on x86 has been measured in the range between 350us and 3.5ms depending on vendor and CPU type, BIOS microcode size etc. #4 The atomic bringup does the microcode update. This has been measured to take up to ~8ms on the primary threads depending on the microcode patch size to apply. On a two socket SKL server with 56 cores (112 threads) the boot CPU spends on current mainline about 800ms busy waiting for the APs to come up and apply microcode. That's more than 80% of the actual onlining procedure. This can be reduced significantly by splitting the bringup mechanism into two parts: 1) Run the prepare callbacks and kick the AP alive for each AP which needs to be brought up. The APs wake up, do their firmware initialization and run the low level kernel startup code including microcode loading in parallel up to the first synchronization point. (#1 and #2 above) 2) Run the rest of the bringup code strictly serialized per CPU (#3 - #5 above) as it's done today. Parallelizing that stage of the CPU bringup might be possible in theory, but it's questionable whether required surgery would be justified for a pretty small gain. If the system is large enough the first AP is already waiting at the first synchronization point when the boot CPU finished the wake-up of the last AP. That reduces the AP bringup time on that SKL from ~800ms to ~80ms, i.e. by a factor ~10x. The actual gain varies wildly depending on the system, CPU, microcode patch size and other factors. There are some opportunities to reduce the overhead further, but that needs some deep surgery in the x86 CPU bringup code. For now this is only enabled on x86, but the core functionality obviously works for all SMP capable architectures. - Enhancements for SMP function call tracing so it is possible to locate the scheduling and the actual execution points. That allows to measure IPI delivery time precisely" * tag 'smp-core-2023-06-26' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/tip/tip: (45 commits) trace,smp: Add tracepoints for scheduling remotelly called functions trace,smp: Add tracepoints around remotelly called functions MAINTAINERS: Add CPU HOTPLUG entry x86/smpboot: Fix the parallel bringup decision x86/realmode: Make stack lock work in trampoline_compat() x86/smp: Initialize cpu_primary_thread_mask late cpu/hotplug: Fix off by one in cpuhp_bringup_mask() x86/apic: Fix use of X{,2}APIC_ENABLE in asm with older binutils x86/smpboot/64: Implement arch_cpuhp_init_parallel_bringup() and enable it x86/smpboot: Support parallel startup of secondary CPUs x86/smpboot: Implement a bit spinlock to protect the realmode stack x86/apic: Save the APIC virtual base address cpu/hotplug: Allow "parallel" bringup up to CPUHP_BP_KICK_AP_STATE x86/apic: Provide cpu_primary_thread mask x86/smpboot: Enable split CPU startup cpu/hotplug: Provide a split up CPUHP_BRINGUP mechanism cpu/hotplug: Reset task stack state in _cpu_up() cpu/hotplug: Remove unused state functions riscv: Switch to hotplug core state synchronization parisc: Switch to hotplug core state synchronization ... -
ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull x86 boot updates from Thomas Gleixner: "Initialize FPU late. Right now FPU is initialized very early during boot. There is no real requirement to do so. The only requirement is to have it done before alternatives are patched. That's done in check_bugs() which does way more than what the function name suggests. So first rename check_bugs() to arch_cpu_finalize_init() which makes it clear what this is about. Move the invocation of arch_cpu_finalize_init() earlier in start_kernel() as it has to be done before fork_init() which needs to know the FPU register buffer size. With those prerequisites the FPU initialization can be moved into arch_cpu_finalize_init(), which removes it from the early and fragile part of the x86 bringup" * tag 'x86-boot-2023-06-26' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/mem_encrypt: Unbreak the AMD_MEM_ENCRYPT=n build x86/f...
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ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull irq updates from Thomas Gleixner: "Updates for the interrupt subsystem: Core: - Convert the interrupt descriptor storage to a maple tree to overcome the limitations of the radixtree + fixed size bitmap. This allows us to handle very large servers with a huge number of guests without imposing a huge memory overhead on everyone - Implement optional retriggering of interrupts which utilize the fasteoi handler to work around a GICv3 architecture issue Drivers: - A set of fixes and updates for the Loongson/Loongarch related drivers - Workaound for an ASR8601 integration hickup which ends up with CPU numbering which can't be represented in the GIC implementation - The usual set of boring fixes and updates all over the place" * tag 'irq-core-2023-06-26' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/tip/tip: (27 commits) Revert "irqchip/mxs: Include linux/irqchip/mxs.h" irqchip/jcore-aic: Fix missing allocation of IRQ descriptors irqchip/stm32-exti: Fix warning on initialized field overwritten irqchip/stm32-exti: Add STM32MP15xx IWDG2 EXTI to GIC map irqchip/gicv3: Add a iort_pmsi_get_dev_id() prototype irqchip/mxs: Include linux/irqchip/mxs.h irqchip/clps711x: Remove unused clps711x_intc_init() function irqchip/mmp: Remove non-DT codepath irqchip/ftintc010: Mark all function static irqdomain: Include internals.h for function prototypes irqchip/loongson-eiointc: Add DT init support dt-bindings: interrupt-controller: Add Loongson EIOINTC irqchip/loongson-eiointc: Fix irq affinity setting during resume irqchip/loongson-liointc: Add IRQCHIP_SKIP_SET_WAKE flag irqchip/loongson-liointc: Fix IRQ trigger polarity irqchip/loongson-pch-pic: Fix potential incorrect hwirq assignment irqchip/loongson-pch-pic: Fix initialization of HT vector register irqchip/gic-v3-its: Enable RESEND_WHEN_IN_PROGRESS for LPIs genirq: Allow fasteoi handler to resend interrupts on concurrent handling genirq: Expand doc for PENDING and REPLAY flags ... -
Linus Torvalds authored
Merge tag 'core-debugobjects-2023-06-26' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull debugobjects update from Thomas Gleixner: "A single update for debug objects: - Recheck whether debug objects is enabled before reporting a problem to avoid spamming the logs with messages which are caused by a concurrent OOM" * tag 'core-debugobjects-2023-06-26' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/tip/tip: debugobjects: Recheck debug_objects_enabled before reporting
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git://git.kernel.dk/linuxLinus Torvalds authored
Pull block updates from Jens Axboe: - NVMe pull request via Keith: - Various cleanups all around (Irvin, Chaitanya, Christophe) - Better struct packing (Christophe JAILLET) - Reduce controller error logs for optional commands (Keith) - Support for >=64KiB block sizes (Daniel Gomez) - Fabrics fixes and code organization (Max, Chaitanya, Daniel Wagner) - bcache updates via Coly: - Fix a race at init time (Mingzhe Zou) - Misc fixes and cleanups (Andrea, Thomas, Zheng, Ye) - use page pinning in the block layer for dio (David) - convert old block dio code to page pinning (David, Christoph) - cleanups for pktcdvd (Andy) - cleanups for rnbd (Guoqing) - use the unchecked __bio_add_page() for the initial single page additions (Johannes) - fix overflows in the Amiga partition handling code (Michael) - improve mq-deadline zoned device support (Bart) - keep passthrough requests out of the IO schedulers (Christoph, Ming) - improve support for flush requests, making them less special to deal with (Christoph) - add bdev holder ops and shutdown methods (Christoph) - fix the name_to_dev_t() situation and use cases (Christoph) - decouple the block open flags from fmode_t (Christoph) - ublk updates and cleanups, including adding user copy support (Ming) - BFQ sanity checking (Bart) - convert brd from radix to xarray (Pankaj) - constify various structures (Thomas, Ivan) - more fine grained persistent reservation ioctl capability checks (Jingbo) - misc fixes and cleanups (Arnd, Azeem, Demi, Ed, Hengqi, Hou, Jan, Jordy, Li, Min, Yu, Zhong, Waiman) * tag 'for-6.5/block-2023-06-23' of git://git.kernel.dk/linux: (266 commits) scsi/sg: don't grab scsi host module reference ext4: Fix warning in blkdev_put() block: don't return -EINVAL for not found names in devt_from_devname cdrom: Fix spectre-v1 gadget block: Improve kernel-doc headers blk-mq: don't insert passthrough request into sw queue bsg: make bsg_class a static const structure ublk: make ublk_chr_class a static const structure aoe: make aoe_class a static const structure block/rnbd: make all 'class' structures const block: fix the exclusive open mask in disk_scan_partitions block: add overflow checks for Amiga partition support block: change all __u32 annotations to __be32 in affs_hardblocks.h block: fix signed int overflow in Amiga partition support block: add capacity validation in bdev_add_partition() block: fine-granular CAP_SYS_ADMIN for Persistent Reservation block: disallow Persistent Reservation on partitions reiserfs: fix blkdev_put() warning from release_journal_dev() block: fix wrong mode for blkdev_get_by_dev() from disk_scan_partitions() block: document the holder argument to blkdev_get_by_path ... -
git://git.kernel.dk/linuxLinus Torvalds authored
Pull io_uring updates from Jens Axboe: "Nothing major in this release, just a bunch of cleanups and some optimizations around networking mostly. - clean up file request flags handling (Christoph) - clean up request freeing and CQ locking (Pavel) - support for using pre-registering the io_uring fd at setup time (Josh) - Add support for user allocated ring memory, rather than having the kernel allocate it. Mostly for packing rings into a huge page (me) - avoid an unnecessary double retry on receive (me) - maintain ordering for task_work, which also improves performance (me) - misc cleanups/fixes (Pavel, me)" * tag 'for-6.5/io_uring-2023-06-23' of git://git.kernel.dk/linux: (39 commits) io_uring: merge conditional unlock flush helpers io_uring: make io_cq_unlock_post static io_uring: inline __io_cq_unlock io_uring: fix acquire/release annotations io_uring: kill io_cq_unlock() io_uring: remove IOU_F_TWQ_FORCE_NORMAL io_uring: don't batch task put on reqs free io_uring: move io_clean_op() io_uring: inline io_dismantle_req() io_uring: remove io_free_req_tw io_uring: open code io_put_req_find_next io_uring: add helpers to decode the fixed file file_ptr io_uring: use io_file_from_index in io_msg_grab_file io_uring: use io_file_from_index in __io_sync_cancel io_uring: return REQ_F_ flags from io_file_get_flags io_uring: remove io_req_ffs_set io_uring: remove a confusing comment above io_file_get_flags io_uring: remove the mode variable in io_file_get_flags io_uring: remove __io_file_supports_nowait io_uring: wait interruptibly for request completions on exit ... -
git://git.kernel.dk/linuxLinus Torvalds authored
Pull splice updates from Jens Axboe: "This kills off ITER_PIPE to avoid a race between truncate, iov_iter_revert() on the pipe and an as-yet incomplete DMA to a bio with unpinned/unref'ed pages from an O_DIRECT splice read. This causes memory corruption. Instead, we either use (a) filemap_splice_read(), which invokes the buffered file reading code and splices from the pagecache into the pipe; (b) copy_splice_read(), which bulk-allocates a buffer, reads into it and then pushes the filled pages into the pipe; or (c) handle it in filesystem-specific code. Summary: - Rename direct_splice_read() to copy_splice_read() - Simplify the calculations for the number of pages to be reclaimed in copy_splice_read() - Turn do_splice_to() into a helper, vfs_splice_read(), so that it can be used by overlayfs and coda to perform the checks on the lower fs - Make vfs_splice_read() jump to copy_splice_read() ... -
git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linuxLinus Torvalds authored
Pull btrfs updates from David Sterba: "Mainly core changes, refactoring and optimizations. Performance is improved in some areas, overall there may be a cumulative improvement due to refactoring that removed lookups in the IO path or simplified IO submission tracking. Core: - submit IO synchronously for fast checksums (crc32c and xxhash), remove high priority worker kthread - read extent buffer in one go, simplify IO tracking, bio submission and locking - remove additional tracking of redirtied extent buffers, originally added for zoned mode but actually not needed - track ordered extent pointer in bio to avoid rbtree lookups during IO - scrub, use recovered data stripes as cache to avoid unnecessary read - in zoned mode, optimize logical to physical mappings of extents - remove PageError handling, not set by VFS nor writeback - cleanups, refactoring, bet... -
git://git.kernel.org/pub/scm/linux/kernel/git/dlemoal/zonefsLinus Torvalds authored
Pull zonefs updates from Damien Le Moal: - Modify the synchronous direct write path to use iomap instead of manually coding issuing zone append write BIOs (me) - Use the FMODE_CAN_ODIRECT file flag to indicate support from direct IO instead of using the old way with noop direct_io methods (Christoph) * tag 'zonefs-6.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/dlemoal/zonefs: zonefs: set FMODE_CAN_ODIRECT instead of a dummy direct_IO method zonefs: use iomap for synchronous direct writes
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git://git.kernel.org/pub/scm/linux/kernel/git/xiang/erofsLinus Torvalds authored
Pull erofs updates from Gao Xiang: "No outstanding new feature for this cycle. Most of these commits are decompression cleanups which are part of the ongoing development for subpage/folio compression support as well as xattr cleanups for the upcoming xattr bloom filter optimization [1]. In addition, there are bugfixes to address some corner cases of compressed images due to global data de-duplication and arm64 16k pages. Summary: - Fix rare I/O hang on deduplicated compressed images due to loop hooked chains - Fix compact compression layout of 16k blocks on arm64 devices - Fix atomic context detection of async decompression - Decompression/Xattr code cleanups" Link: https://lore.kernel.org/r/20230621083209.116024-1-jefflexu@linux.alibaba.com [1] * tag 'erofs-for-6.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/xiang/erofs: erofs: clean up zmap.c erofs: remove unnecessary goto erofs: Fix detection of atomic context erofs: use separate xattr parsers for listxattr/getxattr erofs: unify inline/shared xattr iterators for listxattr/getxattr erofs: make the size of read data stored in buffer_ofs erofs: unify xattr_iter structures erofs: use absolute position in xattr iterator erofs: fix compact 4B support for 16k block size erofs: convert erofs_read_metabuf() to erofs_bread() for xattr erofs: use poison pointer to replace the hard-coded address erofs: use struct lockref to replace handcrafted approach erofs: adapt managed inode operations into folios erofs: kill hooked chains to avoid loops on deduplicated compressed images erofs: avoid on-stack pagepool directly passed by arguments erofs: allocate extra bvec pages directly instead of retrying erofs: clean up z_erofs_pcluster_readmore() erofs: remove the member readahead from struct z_erofs_decompress_frontend erofs: fold in z_erofs_decompress() -
git://git.kernel.org/pub/scm/fs/fsverity/linuxLinus Torvalds authored
Pull fsverity updates from Eric Biggers: "Several updates for fs/verity/: - Do all hashing with the shash API instead of with the ahash API. This simplifies the code and reduces API overhead. It should also make things slightly easier for XFS's upcoming support for fsverity. It does drop fsverity's support for off-CPU hash accelerators, but that support was incomplete and not known to be used - Update and export fsverity_get_digest() so that it's ready for overlayfs's upcoming support for fsverity checking of lowerdata - Improve the documentation for builtin signature support - Fix a bug in the large folio support" * tag 'fsverity-for-linus' of git://git.kernel.org/pub/scm/fs/fsverity/linux: fsverity: improve documentation for builtin signature support fsverity: rework fsverity_get_digest() again fsverity: simplify error handling in verify_data_block() fsverity: don't use bio_first_page_all() in fsverity_verify_bio() fsverity: constify fsverity_hash_alg fsverity: use shash API instead of ahash API -
git://git.kernel.org/pub/scm/fs/fscrypt/linuxLinus Torvalds authored
Pull fscrypt update from Eric Biggers: "Just one flex array conversion patch" * tag 'fscrypt-for-linus' of git://git.kernel.org/pub/scm/fs/fscrypt/linux: fscrypt: Replace 1-element array with flexible array
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git://git.kernel.org/pub/scm/linux/kernel/git/cel/linuxLinus Torvalds authored
Pull nfsd updates from Chuck Lever: - Clean-ups in the READ path in anticipation of MSG_SPLICE_PAGES - Better NUMA awareness when allocating pages and other objects - A number of minor clean-ups to XDR encoding - Elimination of a race when accepting a TCP socket - Numerous observability enhancements * tag 'nfsd-6.5' of git://git.kernel.org/pub/scm/linux/kernel/git/cel/linux: (46 commits) nfsd: remove redundant assignments to variable len svcrdma: Fix stale comment NFSD: Distinguish per-net namespace initialization nfsd: move init of percpu reply_cache_stats counters back to nfsd_init_net SUNRPC: Address RCU warning in net/sunrpc/svc.c SUNRPC: Use sysfs_emit in place of strlcpy/sprintf SUNRPC: Remove transport class dprintk call sites SUNRPC: Fix comments for transport class registration svcrdma: Remove an unused argument from __svc_rdma_put_rw_ctxt() svcrdma: trace cc_release calls svcrdma: Convert "might sleep" comment into a code annotation NFSD: Add an nfsd4_encode_nfstime4() helper SUNRPC: Move initialization of rq_stime SUNRPC: Optimize page release in svc_rdma_sendto() svcrdma: Prevent page release when nothing was received svcrdma: Revert 2a1e4f21 ("svcrdma: Normalize Send page handling") SUNRPC: Revert 57990067 ("svcrdma: Remove unused sc_pages field") SUNRPC: Revert cc93ce95 ("svcrdma: Retain the page backing rq_res.head[0].iov_base") NFSD: add encoding of op_recall flag for write delegation NFSD: Add "official" reviewers for this subsystem ...
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git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfsLinus Torvalds authored
Pull vfs mount updates from Christian Brauner: "This contains the work to extend move_mount() to allow adding a mount beneath the topmost mount of a mount stack. There are two LWN articles about this. One covers the original patch series in [1]. The other in [2] summarizes the session and roughly the discussion between Al and me at LSFMM. The second article also goes into some good questions from attendees. Since all details are found in the relevant commit with a technical dive into semantics and locking at the end I'm only adding the motivation and core functionality for this from commit message and leave out the invasive details. The code is also heavily commented and annotated as well which was explicitly requested. TL;DR: > mount -t ext4 /dev/sda /mnt | └─/mnt /dev/sda ext4 > mount --beneath -t xfs /dev/sdb /mnt | └─/mnt /dev/sdb xfs ... -
git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfsLinus Torvalds authored
Pull vfs file handling updates from Christian Brauner: "This contains Amir's work to fix a long-standing problem where an unprivileged overlayfs mount can be used to avoid fanotify permission events that were requested for an inode or superblock on the underlying filesystem. Some background about files opened in overlayfs. If a file is opened in overlayfs @file->f_path will refer to a "fake" path. What this means is that while @file->f_inode will refer to inode of the underlying layer, @file->f_path refers to an overlayfs {dentry,vfsmount} pair. The reasons for doing this are out of scope here but it is the reason why the vfs has been providing the open_with_fake_path() helper for overlayfs for very long time now. So nothing new here. This is for sure not very elegant and everyone including the overlayfs maintainers agree. Improving this significantly would involve more fragile and potentially... -
git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfsLinus Torvalds authored
Pull vfs rename locking updates from Christian Brauner: "This contains the work from Jan to fix problems with cross-directory renames originally reported in [1]. To quickly sum it up some filesystems (so far we know at least about ext4, udf, f2fs, ocfs2, likely also reiserfs, gfs2 and others) need to lock the directory when it is being renamed into another directory. This is because we need to update the parent pointer in the directory in that case and if that races with other operations on the directory, in particular a conversion from one directory format into another, bad things can happen. So far we've done the locking in the filesystem code but recently Darrick pointed out in [2] that the RENAME_EXCHANGE case was missing. That one is particularly nasty because RENAME_EXCHANGE can arbitrarily mix regular files and directories and proper lock ordering is not achievable in the filesystems alone. This patch set adds locking into vfs_rename() so that not only parent directories but also moved inodes, regardless of whether they are directories or not, are locked when calling into the filesystem. This means establishing a locking order for unrelated directories. New helpers are added for this purpose and our documentation is updated to cover this in detail. The locking is now actually easier to follow as we now always lock source and target. We've always locked the target independent of whether it was a directory or file and we've always locked source if it was a regular file. The exact details for why this came about can be found in [3] and [4]" Link: https://lore.kernel.org/all/20230117123735.un7wbamlbdihninm@quack3 [1] Link: https://lore.kernel.org/all/20230517045836.GA11594@frogsfrogsfrogs [2] Link: https://lore.kernel.org/all/20230526-schrebergarten-vortag-9cd89694517e@brauner [3] Link: https://lore.kernel.org/all/20230530-seenotrettung-allrad-44f4b00139d4@brauner [4] * tag 'v6.5/vfs.rename.locking' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs: fs: Restrict lock_two_nondirectories() to non-directory inodes fs: Lock moved directories fs: Establish locking order for unrelated directories Revert "f2fs: fix potential corruption when moving a directory" Revert "udf: Protect rename against modification of moved directory" ext4: Remove ext4 locking of moved directory
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git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfsLinus Torvalds authored
Pull misc vfs updates from Christian Brauner: "Miscellaneous features, cleanups, and fixes for vfs and individual fs Features: - Use mode 0600 for file created by cachefilesd so it can be run by unprivileged users. This aligns them with directories which are already created with mode 0700 by cachefilesd - Reorder a few members in struct file to prevent some false sharing scenarios - Indicate that an eventfd is used a semaphore in the eventfd's fdinfo procfs file - Add a missing uapi header for eventfd exposing relevant uapi defines - Let the VFS protect transitions of a superblock from read-only to read-write in addition to the protection it already provides for transitions from read-write to read-only. Protecting read-only to read-write transitions allows filesystems such as ext4 to perform internal writes, keeping writers away until the transition is ... -
git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfsLinus Torvalds authored
Pull ntfs updates from Christian Brauner: "A pile of various smaller fixes for ntfs" * tag 'v6.5/fs.ntfs' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs: ntfs: do not dereference a null ctx on error ntfs: Remove unneeded semicolon ntfs: Correct spelling ntfs: remove redundant initialization to pointer cb_sb_start
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https://github.com/ojeda/linuxLinus Torvalds authored
Pull auxdisplay update from Miguel Ojeda: "A single cleanup for i2c drivers to switch them back to use '.probe()'" * tag 'auxdisplay-6.5' of https://github.com/ojeda/linux: auxdisplay: Switch i2c drivers back to use .probe()
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https://github.com/Rust-for-Linux/linuxLinus Torvalds authored
Pull rust updates from Miguel Ojeda: "A fairly small one in terms of feature additions. Most of the changes in terms of lines come from the upgrade to the new version of the toolchain (which in turn is big due to the vendored 'alloc' crate). Upgrade to Rust 1.68.2: - This is the first such upgrade, and we will try to update it often from now on, in order to remain close to the latest release, until a minimum version (which is "in the future") can be established. The upgrade brings the stabilization of 4 features we used (and 2 more that we used in our old 'rust' branch). Commit 3ed03f4d ("rust: upgrade to Rust 1.68.2") contains the details and rationale. pin-init API: - Several internal improvements and fixes to the pin-init API, e.g. allowing to use 'Self' in a struct definition with '#[pin_data]'. 'error' module: - New 'name()' method for the 'Error' type (with 'errname()' ... -
git://git.kernel.org/pub/scm/linux/kernel/git/s390/linuxLinus Torvalds authored
Pull s390 updates from Alexander Gordeev: - Use correct type for size of memory allocated for ELF core header on kernel crash. - Fix insecure W+X mapping warning when KASAN shadow memory range is not aligned on page boundary. - Avoid allocation of short by one page KASAN shadow memory when the original memory range is less than (PAGE_SIZE << 3). - Fix virtual vs physical address confusion in physical memory enumerator. It is not a real issue, since virtual and physical addresses are currently the same. - Set CONFIG_NET_TC_SKB_EXT=y in s390 config files as it is required for offloading TC as well as bridges on switchdev capable ConnectX devices. * tag 's390-6.4-4' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux: s390/defconfigs: set CONFIG_NET_TC_SKB_EXT=y s390/boot: fix physmem_info virtual vs physical address confusion s390/kasan: avoid short by one page shadow memory s390/kasan: fix insecure W+X mapping warning s390/crash: use the correct type for memory allocation
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git://git.kernel.org/pub/scm/linux/kernel/git/dinguyen/linuxLinus Torvalds authored
Pull nios2 updates from Dinh Nguyen: - Convert pgtable constructor/destructors to ptdesc - Replace strlcpy with strscpy * tag 'nios2_updates_for_v6.5' of git://git.kernel.org/pub/scm/linux/kernel/git/dinguyen/linux: nios2: Replace all non-returning strlcpy with strscpy nios2: Convert __pte_free_tlb() to use ptdescs
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- Jun 26, 2023
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Thomas Gleixner authored
Merge tag 'irqchip-6.5' of git://git.kernel.org/pub/scm/linux/kernel/git/maz/arm-platforms into irq/core Pull irqchip updates from Marc Zyngier: - A number of Loogson/Loogarch fixes - Allow the core code to retrigger an interrupt that has fired while the same interrupt is being handled on another CPU, papering over a GICv3 architecture issue - Work around an integration problem on ASR8601, where the CPU numbering isn't representable in the GIC implementation... - Add some missing interrupt to the STM32 irqchip - A bunch of warning squashing triggered by W=1 builds Link: https://lore.kernel.org/r/20230623224345.3577134-1-maz@kernel.org
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https://git.linaro.org/people/daniel.lezcano/linuxThomas Gleixner authored
Pull clockevent/source updates from Daniel Lezcano: - Fix memory leak on Cadence TTC at probe time (Feng Mingxi) - Use the pm_sleep_ptr macro for the Ingenic driver (Paul Cercueil) - Relocate the PMW timer Loongson from the mips arch directory to the drivers/clocksource (Keguang Zhang) - Use the same function names instead of using aliases and move data defined in the header to the driver directly as this one is the only user of the header file and remove this one on i.MX GPT (Uwe Kleine-König) - Convert Broadcom Kona family timer bindings to DT schema (Michael Kelley) - Add DT bindings for Ralink SoCs timer (Sergio Paracuellos) -
Linus Torvalds authored
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git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linuxLinus Torvalds authored
Pull i2c fixes from Wolfram Sang: "Nothing fancy. Two driver and one DT binding fix" * tag 'i2c-for-6.4-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux: i2c: imx-lpi2c: fix type char overflow issue when calculating the clock cycle i2c: qup: Add missing unwind goto in qup_i2c_probe() dt-bindings: i2c: opencores: Add missing type for "regstep"
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull perf fixes from Borislav Petkov: - Drop the __weak attribute from a function prototype as it otherwise leads to the function getting replaced by a dummy stub - Fix the umask value setup of the frontend event as former is different on two Intel cores * tag 'perf_urgent_for_v6.4' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: perf/x86/intel: Fix the FRONTEND encoding on GNR and MTL perf/core: Drop __weak attribute from arch_perf_update_userpage() prototype
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull objtool fix from Borislav Petkov: - Add a ORC format hash to vmlinux and modules in order for other tools which use it, to detect changes to it and adapt accordingly * tag 'objtool_urgent_for_v6.4' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/unwind/orc: Add ELF section with ORC version identifier
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