- 10 Sep, 2021 7 commits
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Magnus Karlsson authored
Introduce the test name in the test specification. This so we can set the name locally in the test function and simplify the logic for printing out test results. Signed-off-by:
Magnus Karlsson <magnus.karlsson@intel.com> Signed-off-by:
Daniel Borkmann <daniel@iogearbox.net> Acked-by:
Maciej Fijalkowski <maciej.fijalkowski@intel.com> Link: https://lore.kernel.org/bpf/20210907071928.9750-8-magnus.karlsson@gmail.com
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Magnus Karlsson authored
Make the frame size configurable instead of it being hard coded to a default. This is a property of the umem and will make it possible to implement tests for different umem frame sizes in a later patch. Signed-off-by:
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Magnus Karlsson authored
Move the global variable rxqsize to struct xsk_socket_info as it describes the size of a ring in that struct. By default, it is set to the size dictated by libbpf. Signed-off-by:
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Magnus Karlsson authored
Move the global variables num_frames and frame_headroom to struct xsk_umem_info. They describe properties of the umem so no reason for them to be global. Signed-off-by:
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Magnus Karlsson authored
Introduce a test specification to be able to concisely describe a test. Currently, a test is implemented by sprinkling test specific if statements here and there, which is not scalable or easy to understand. The end goal with this patch set is to come to the point in which a test is completely specified by a test specification that can easily be constructed in a single function so that new tests can be added without too much trouble. This test specification will be run by a test runner that has no idea about tests. It just executes the what test specification states. This patch introduces the test specification and, as a start, puts the two interface objects in there, one containing the packet stream to be sent and the other one the packet stream that is supposed to be received for a test to pass. The global variables containing these can then be eliminated. The following patches will convert each existing test into a test specification and add the needed fields into it and the functionality in the test runner that act on the test specification. At the end, the test runner should contain no test specific code and each test should be described in a single simple function. Signed-off-by:
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Magnus Karlsson authored
Introduce a typedef of the thread function so this can be passed to init_iface() in order to simplify that function. Signed-off-by:
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Magnus Karlsson authored
Simplify the xsk_info and umem_info allocation by allocating them upfront in an array, instead of allocating an array of pointers to future creations of these. Allocating them upfront also has the advantage that configuration information can be stored in these structures instead of relying on global variables. With the previous structure, xsk_info and umem_info were created too late to be able to store most configuration information. This will be used to eliminate most global variables in later patches in this series. Signed-off-by:
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- 09 Sep, 2021 1 commit
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Quentin Monnet authored
Introduce a macro LIBBPF_DEPRECATED_SINCE(major, minor, message) to prepare the deprecation of two API functions. This macro marks functions as deprecated when libbpf's version reaches the values passed as an argument. As part of this change libbpf_version.h header is added with recorded major (LIBBPF_MAJOR_VERSION) and minor (LIBBPF_MINOR_VERSION) libbpf version macros. They are now part of libbpf public API and can be relied upon by user code. libbpf_version.h is installed system-wide along other libbpf public headers. Due to this new build-time auto-generated header, in-kernel applications relying on libbpf (resolve_btfids, bpftool, bpf_preload) are updated to include libbpf's output directory as part of a list of include search paths. Better fix would be to use libbpf's make_install target to install public API headers, but that clean up is left out as a future improvement. The build changes were tested by building kernel (with KBUILD_OUTPUT and O= specified explicitly), bpftool, libbpf, selftests/bpf, and resolve_btfids builds. No problems were detected. Note that because of the constraints of the C preprocessor we have to write a few lines of macro magic for each version used to prepare deprecation (0.6 for now). Also, use LIBBPF_DEPRECATED_SINCE() to schedule deprecation of btf__get_from_id() and btf__load(), which are replaced by btf__load_from_kernel_by_id() and btf__load_into_kernel(), respectively, starting from future libbpf v0.6. This is part of libbpf 1.0 effort ([0]). [0] Closes: https://github.com/libbpf/libbpf/issues/278Co-developed-by:
Quentin Monnet <quentin@isovalent.com> Co-developed-by:
Andrii Nakryiko <andrii@kernel.org> Signed-off-by:
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- 08 Sep, 2021 6 commits
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Andrii Nakryiko authored
After updating to binutils 2.35, the build began to fail with an assembler error. A bug was opened on the Red Hat Bugzilla a few days later for the same issue. Work around the problem by using the new `symver` attribute (introduced in GCC 10) as needed instead of assembler directives. This addresses Red Hat ([0]) and OpenSUSE ([1]) bug reports, as well as libbpf issue ([2]). [0]: https://bugzilla.redhat.com/show_bug.cgi?id=1863059 [1]: https://bugzilla.opensuse.org/show_bug.cgi?id=1188749 [2]: Closes: https://github.com/libbpf/libbpf/issues/338Co-developed-by:
Patrick McCarty <patrick.mccarty@intel.com> Co-developed-by:
Michal Suchanek <msuchanek@suse.de> Signed-off-by:
Alexei Starovoitov <ast@kernel.org> Link: https://lore.kernel.org/bpf/20210907221023.2660953-1-andrii@kernel.org
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Andrii Nakryiko authored
Matt Smith says: ==================== This patch series changes the type of bpf_object_skeleton->data to const void * and provides a helper method X__elf_bytes(size_t *sz) for accessing the raw binary data of the compiled embedded BPF object. The type change enforces the previously implied behavior of immutability for this field while casting it to (void *) before assignment allows for compiling with previous versions of the libbpf headers without compiler warnings. The helper method allows easier access to the BPF binary object data and is leveraged to populate the skeleton field. The inclusion of this helper method will allow users to get access to the data without needing to populate an entire skeleton first. Checks are added in the third patch to validate the behavior of the added method ==================== Signed-off-by: -
Matt Smith authored
This patch adds two checks for the X__elf_bytes BPF skeleton helper method. The first asserts that the pointer returned from the helper method is valid, the second asserts that the provided size pointer is set. Signed-off-by:
Matt Smith <alastorze@fb.com> Signed-off-by:
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Matt Smith authored
This adds a skeleton method X__elf_bytes() which returns the binary data of the compiled and embedded BPF object file. It additionally sets the size of the return data to the provided size_t pointer argument. The assignment to s->data is cast to void * to ensure no warning is issued if compiled with a previous version of libbpf where the bpf_object_skeleton field is void * instead of const void * Signed-off-by:
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Matt Smith authored
This change was necessary to enforce the implied contract that bpf_object_skeleton->data should not be mutated. The data will be cast to `void *` during assignment to handle the case where a user is compiling with older libbpf headers to avoid a compiler warning of `const void *` data being cast to `void *` Signed-off-by:
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Toke Høiland-Jørgensen authored
If libbpf encounters an ELF file that has been stripped of its symbol table, it will crash in bpf_object__add_programs() when trying to dereference the obj->efile.symbols pointer. Fix this by erroring out of bpf_object__elf_collect() if it is not able able to find the symbol table. v2: - Move check into bpf_object__elf_collect() and add nice error message Fixes: 6245947c ("libbpf: Allow gaps in BPF program sections to support overriden weak functions") Signed-off-by:
Toke Høiland-Jørgensen <toke@redhat.com> Signed-off-by:
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- 07 Sep, 2021 1 commit
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Neil Spring authored
bpf_prog_test_run_xattr takes a struct __sk_buff, but did not permit that __skbuff to include an nonzero ingress_ifindex. This patch updates to allow ingress_ifindex, convert the __sk_buff field to sk_buff (skb_iif) and back, and tests that the value is present from on BPF program side. The test sets an unlikely distinct value for ingress_ifindex (11) from ifindex (1), which is in line with the rest of the synthetic field tests. Adding this support allows testing BPF that operates differently on incoming and outgoing skbs by discriminating on this field. Signed-off-by:
Neil Spring <ntspring@fb.com> Signed-off-by:
John Fastabend <john.fastabend@gmail.com> Link: https://lore.kernel.org/bpf/20210831033356.1459316-1-ntspring@fb.com
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- 05 Sep, 2021 8 commits
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Linus Torvalds authored
Merge tag 'perf-tools-for-v5.15-2021-09-04' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux Pull perf tool updates from Arnaldo Carvalho de Melo: "New features: - Improvements for the flamegraph python script, including: - Display perf.data header - Display PIDs of user stacks - Added option to change color scheme - Default to blue/green color scheme to improve accessibility - Correctly identify kernel stacks when debuginfo is available - Improvements for 'perf bench futex': - Add --mlockall parameter - Add --broadcast and --pi to the 'requeue' sub benchmark - Add support for PMU aliases. - Introduce an ARM Coresight ETE decoder. - Add a 'perf bench' entry for evlist open/close operations, to help quantify improvements with multithreading 'perf record'. - Allow reporting the [un]throttle PERF_RECORD_ meta event in 'perf script's python scripting. - Add a 'perf test' entry for PMU aliases. - Add a 'perf test' entry for 'perf record/perf report/perf script' pipe mode. Fixes: - perf script dlfilter (API for filtering via dynamically loaded shared object introduced in v5.14) fixes and a 'perf test' entry for it. - Fix get_current_dir_name() compilation on Android. - Fix issues with asciidoc and double dashes uses. - Fix memory leaks in the BTF handling code. - Fix leftover problems in the Documentation from the infrastructure originally lifted from the git codebase. - Fix *probe_vfs_getname.sh 'perf test' failures. - Handle fd gaps in 'perf test's test__dso_data_reopen(). - Make sure to show disasembly warnings for 'perf annotate --stdio'. - Fix output from pipe to file and vice-versa in 'perf record/report/script'. - Correct 'perf data -h' output. - Fix wrong comm in system-wide mode with 'perf record --delay'. - Do not allow --for-each-cgroup without cpu in 'perf stat' - Make 'perf test --skip' work on shell tests. - Fix libperf's verbose printing. Misc improvements: - Preparatory patches for multithreading various 'perf record' phases (synthesizing, opening, recording, etc). - Add sparse context/locking annotations in compiler-types.h, also to help with the multithreading effort. - Optimize the generation of the arch specific erno tables used in 'perf trace'. - Optimize libperf's perf_cpu_map__max(). - Improve ARM's CoreSight warnings. - Report collisions in AUX records. - Improve warnings for the LLVM 'perf test' entry. - Improve the PMU events 'perf test' codebase. - perf test: Do not compare overheads in the zstd comp test - Better support annotation on ARM. - Update 'perf trace's cmd string table to decode sys_bpf() first arg. Vendor events: - Add JSON events and metrics for Intel's Ice Lake, Tiger Lake and Elhart Lake. - Update JSON eventsand metrics for Intel's Cascade Lake and Sky Lake servers. Hardware tracing: - Improvements for the ARM hardware tracing auxtrace support" * tag 'perf-tools-for-v5.15-2021-09-04' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux: (130 commits) perf tests: Add test for PMU aliases perf pmu: Add PMU alias support perf session: Report collisions in AUX records perf script python: Allow reporting the [un]throttle PERF_RECORD_ meta event perf build: Report failure for testing feature libopencsd perf cs-etm: Show a warning for an unknown magic number perf cs-etm: Print the decoder name perf cs-etm: Create ETE decoder perf cs-etm: Update OpenCSD decoder for ETE perf cs-etm: Fix typo perf cs-etm: Save TRCDEVARCH register perf cs-etm: Refactor out ETMv4 header saving perf cs-etm: Initialise architecture based on TRCIDR1 perf cs-etm: Refactor initialisation of decoder params. tools build: Fix feature detect clean for out of source builds perf evlist: Add evlist__for_each_entry_from() macro perf evsel: Handle precise_ip fallback in evsel__open_cpu() perf evsel: Move bpf_counter__install_pe() to success path in evsel__open_cpu() perf evsel: Move test_attr__open() to success path in evsel__open_cpu() perf evsel: Move ignore_missing_thread() to fallback code ...
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git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-traceLinus Torvalds authored
Pull tracing updates from Steven Rostedt: - simplify the Kconfig use of FTRACE and TRACE_IRQFLAGS_SUPPORT - bootconfig can now start histograms - bootconfig supports group/all enabling - histograms now can put values in linear size buckets - execnames can be passed to synthetic events - introduce "event probes" that attach to other events and can retrieve data from pointers of fields, or record fields as different types (a pointer to a string as a string instead of just a hex number) - various fixes and clean ups * tag 'trace-v5.15' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace: (35 commits) tracing/doc: Fix table format in histogram code selftests/ftrace: Add selftest for testing duplicate eprobes and kprobes selftests/ftrace: Add selftest for testing eprobe events on synthetic events selftests/ftrace: Add test case to test adding and removing of event probe selftests/ftrace: Fix requirement check of README file selftests/ftrace: Add clear_dynamic_events() to test cases tracing: Add a probe that attaches to trace events tracing/probes: Reject events which have the same name of existing one tracing/probes: Have process_fetch_insn() take a void * instead of pt_regs tracing/probe: Change traceprobe_set_print_fmt() to take a type tracing/probes: Use struct_size() instead of defining custom macros tracing/probes: Allow for dot delimiter as well as slash for system names tracing/probe: Have traceprobe_parse_probe_arg() take a const arg tracing: Have dynamic events have a ref counter tracing: Add DYNAMIC flag for dynamic events tracing: Replace deprecated CPU-hotplug functions. MAINTAINERS: Add an entry for os noise/latency tracepoint: Fix kerneldoc comments bootconfig/tracing/ktest: Update ktest example for boot-time tracing tools/bootconfig: Use per-group/all enable option in ftrace2bconf script ...
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git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arcLinus Torvalds authored
Pull ARC updates from Vineet Gupta: "Finally a big pile of changes for ARC (atomics/mm). These are from our internal arc64 tree, preparing mainline for eventual arc64 support. I'm spreading them out to avoid tsunami of patches in one release. - MM rework: - Implement up to 4 paging levels - Enable STRICT_MM_TYPECHECK - switch pgtable_t back to 'struct page *' - Atomics rework / implement relaxed accessors - Retire legacy MMUv1,v2; ARC750 cores - A few other build errors, typos" * tag 'arc-5.15-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc: (33 commits) ARC: mm: vmalloc sync from kernel to user table to update PMD ... ARC: mm: support 4 levels of page tables ARC: mm: support 3 levels of page tables ARC: mm: switch to asm-generic/pgalloc.h ARC: mm: switch pgtable_t back to struct page * ARC: mm: hack to allow 2 level build with 4 level code ARC: mm: disintegrate pgtable.h into levels and flags ARC: mm: disintegrate mmu.h (arcv2 bits out) ARC: mm: move MMU specific bits out of entry code ... ARC: mm: move MMU specific bits out of ASID allocator ARC: mm: non-functional code movement/cleanup ARC: mm: pmd_populate* to use the canonical set_pmd (and drop pmd_set) ARC: ioremap: use more commonly used PAGE_KERNEL based uncached flag ARC: mm: Enable STRICT_MM_TYPECHECKS ARC: mm: Fixes to allow STRICT_MM_TYPECHECKS ARC: mm: move mmu/cache externs out to setup.h ARC: mm: remove tlb paranoid code ARC: mm: use SCRATCH_DATA0 register for caching pgdir in ARCv2 only ARC: retire MMUv1 and MMUv2 support ARC: retire ARC750 support ... -
git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linuxLinus Torvalds authored
Pull RISC-V updates from Palmer Dabbelt: - support PC-relative instructions (auipc and branches) in kprobes - support for forced IRQ threading - support for the hlt/nohlt kernel command line options, via the generic idle loop - show the edge/level triggered behavior of interrupts in /proc/interrupts - a handful of cleanups to our address mapping mechanisms - support for allocating gigantic hugepages via CMA - support for the undefined behavior sanitizer (UBSAN) - a handful of cleanups to the VDSO that allow the kernel to build with LLD. - support for hugepage migration * tag 'riscv-for-linus-5.15-mw0' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux: (21 commits) riscv: add support for hugepage migration RISC-V: Fix VDSO build for !MMU riscv: use strscpy to replace strlcpy riscv: explicitly use symbol offsets for VDSO riscv: Enable Undefined Behavior Sanitizer UBSAN riscv: Keep the riscv Kconfig selects sorted riscv: Support allocating gigantic hugepages using CMA riscv: fix the global name pfn_base confliction error riscv: Move early fdt mapping creation in its own function riscv: Simplify BUILTIN_DTB device tree mapping handling riscv: Use __maybe_unused instead of #ifdefs around variable declarations riscv: Get rid of map_size parameter to create_kernel_page_table riscv: Introduce va_kernel_pa_offset for 32-bit kernel riscv: Optimize kernel virtual address conversion macro dt-bindings: riscv: add starfive jh7100 bindings riscv: Enable GENERIC_IRQ_SHOW_LEVEL riscv: Enable idle generic idle loop riscv: Allow forced irq threading riscv: Implement thread_struct whitelist for hardened usercopy riscv: kprobes: implement the branch instructions ...
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Linus Torvalds authored
... but make it a config option so that broken environments can disable it when required. We really should always have a clean build, and will disable specific over-eager warnings as required, if we can't fix them. But while I fairly religiously enforce that in my own tree, it doesn't get enforced by various build robots that don't necessarily report warnings. So this just makes '-Werror' a default compiler flag, but allows people to disable it for their configuration if they have some particular issues. Occasionally, new compiler versions end up enabling new warnings, and it can take a while before we have them fixed (or the warnings disabled if that is what it takes), so the config option allows for that situation. Hopefully this will mean that I get fewer pull requests that have new warnings that were not noticed by various automation we have in place. Knock wood. Signed-off-by:Linus Torvalds <torvalds@linux-foundation.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usbLinus Torvalds authored
Pull more USB updates from Greg KH: "Here are some straggler USB-serial changes for 5.15-rc1. These were not included in the first pull request as they came in "late" from Johan and I had missed them in my pull request earlier this week. Nothing big in here, just some USB to serial driver updates and fixes. All of these were in linux-next before I pulled them into my tree, and have been in linux-next all this week from my tree with no reported problems" * tag 'usb-5.15-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: USB: serial: pl2303: fix GL type detection USB: serial: replace symbolic permissions by octal permissions USB: serial: cp210x: determine fw version for CP2105 and CP2108 USB: serial: cp210x: clean up type detection USB: serial: cp210x: clean up set-chars request USB: serial: cp210x: clean up control-request timeout USB: serial: cp210x: fix flow-control error handling USB: serial: cp210x: fix control-characters error handling USB: serial: io_edgeport: drop unused descriptor helper
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git://git.kernel.org/pub/scm/linux/kernel/git/mtd/linuxLinus Torvalds authored
Pull MTD updates from Miquel Raynal: "MTD changes: - blkdevs: - Simplify the refcounting in blktrans_{open, release} - Simplify blktrans_getgeo - Remove blktrans_ref_mutex - Simplify blktrans_dev_get - Use lockdep_assert_held - Don't hold del_mtd_blktrans_dev in blktrans_{open, release} - ftl: - Don't cast away the type when calling add_mtd_blktrans_dev - Don't cast away the type when calling add_mtd_blktrans_dev - Use container_of() rather than cast - Fix use-after-free - Add discard support - Allow use of MTD_RAM for testing purposes - concat: - Check _read, _write callbacks existence before assignment - Judge callback existence based on the master - maps: - Maps: remove dead MTD map driver for PMC-Sierra MSP boards - mtdblock: - Warn if added for a NAND device - Add comment about UBI block devices - Update old JFFS2 mention in Kconfig - partitions: - Redboot: convert to YAML NAND core changes: - Repair Miquel Raynal's email address in MAINTAINERS - Fix a couple of spelling mistakes in Kconfig - bbt: Skip bad blocks when searching for the BBT in NAND - Remove never changed ret variable Raw NAND changes: - cafe: Fix a resource leak in the error handling path of 'cafe_nand_probe()' - intel: Fix error handling in probe - omap: Fix kernel doc warning on 'calcuate' typo - gpmc: Fix the ECC bytes vs. OOB bytes equation SPI-NAND core changes: - Properly fill the OOB area. - Fix comment SPI-NAND drivers changes: - macronix: Add Quad support for serial NAND flash" * tag 'mtd/for-5.15' of git://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux: (30 commits) mtd: rawnand: cafe: Fix a resource leak in the error handling path of 'cafe_nand_probe()' mtd_blkdevs: simplify the refcounting in blktrans_{open, release} mtd_blkdevs: simplify blktrans_getgeo mtd_blkdevs: remove blktrans_ref_mutex mtd_blkdevs: simplify blktrans_dev_get mtd/rfd_ftl: don't cast away the type when calling add_mtd_blktrans_dev mtd/ftl: don't cast away the type when calling add_mtd_blktrans_dev mtd_blkdevs: use lockdep_assert_held mtd_blkdevs: don't hold del_mtd_blktrans_dev in blktrans_{open, release} mtd: rawnand: intel: Fix error handling in probe mtd: mtdconcat: Check _read, _write callbacks existence before assignment mtd: mtdconcat: Judge callback existence based on the master mtd: maps: remove dead MTD map driver for PMC-Sierra MSP boards mtd: rfd_ftl: use container_of() rather than cast mtd: rfd_ftl: fix use-after-free mtd: rfd_ftl: add discard support mtd: rfd_ftl: allow use of MTD_RAM for testing purposes mtdblock: Warn if added for a NAND device mtd: spinand: macronix: Add Quad support for serial NAND flash mtdblock: Add comment about UBI block devices ... -
Geert Uytterhoeven authored
fs/binfmt_aout.c: In function ‘load_aout_library’: fs/binfmt_aout.c:311:27: error: expected ‘)’ before ‘;’ token 311 | MAP_FIXED | MAP_PRIVATE; | ^ fs/binfmt_aout.c:309:10: error: too few arguments to function ‘vm_mmap’ 309 | error = vm_mmap(file, start_addr, ex.a_text + ex.a_data, | ^~~~~~~ In file included from fs/binfmt_aout.c:12: include/linux/mm.h:2626:35: note: declared here 2626 | extern unsigned long __must_check vm_mmap(struct file *, unsigned long, | ^~~~~~~ Fix this by reverting the accidental replacement of a comma by a semicolon. Fixes: 42be8b42 ("binfmt: don't use MAP_DENYWRITE when loading shared libraries via uselib()") Reported-by: noreply@ellerman.id.au Reported-by:Guenter Roeck <linux@roeck-us.net> Signed-off-by:
Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by:
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- 04 Sep, 2021 4 commits
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git://github.com/davidhildenbrand/linuxLinus Torvalds authored
Pull MAP_DENYWRITE removal from David Hildenbrand: "Remove all in-tree usage of MAP_DENYWRITE from the kernel and remove VM_DENYWRITE. There are some (minor) user-visible changes: - We no longer deny write access to shared libaries loaded via legacy uselib(); this behavior matches modern user space e.g. dlopen(). - We no longer deny write access to the elf interpreter after exec completed, treating it just like shared libraries (which it often is). - We always deny write access to the file linked via /proc/pid/exe: sys_prctl(PR_SET_MM_MAP/EXE_FILE) will fail if write access to the file cannot be denied, and write access to the file will remain denied until the link is effectivel gone (exec, termination, sys_prctl(PR_SET_MM_MAP/EXE_FILE)) -- just as if exec'ing the file. Cross-compiled for a bunch of architectures (alpha, microblaze, i386, s390x, ...) and verified via ltp that especially the relevant tests (i.e., creat07 and execve04) continue working as expected" * tag 'denywrite-for-5.15' of git://github.com/davidhildenbrand/linux: fs: update documentation of get_write_access() and friends mm: ignore MAP_DENYWRITE in ksys_mmap_pgoff() mm: remove VM_DENYWRITE binfmt: remove in-tree usage of MAP_DENYWRITE kernel/fork: always deny write access to current MM exe_file kernel/fork: factor out replacing the current MM exe_file binfmt: don't use MAP_DENYWRITE when loading shared libraries via uselib() -
git://github.com/Paragon-Software-Group/linux-ntfs3Linus Torvalds authored
Merge NTFSv3 filesystem from Konstantin Komarov: "This patch adds NTFS Read-Write driver to fs/ntfs3. Having decades of expertise in commercial file systems development and huge test coverage, we at Paragon Software GmbH want to make our contribution to the Open Source Community by providing implementation of NTFS Read-Write driver for the Linux Kernel. This is fully functional NTFS Read-Write driver. Current version works with NTFS (including v3.1) and normal/compressed/sparse files and supports journal replaying. We plan to support this version after the codebase once merged, and add new features and fix bugs. For example, full journaling support over JBD will be added in later updates" Link: https://lore.kernel.org/lkml/20210729134943.778917-1-almaz.alexandrovich@paragon-software.com/ Link: https://lore.kernel.org/lkml/aa4aa155-b9b2-9099-b7a2-349d8d9d8fbd@paragon-software.com/ * git://github.com/Paragon-Software-Group/linux-ntfs3: (35 commits) fs/ntfs3: Change how module init/info messages are displayed fs/ntfs3: Remove GPL boilerplates from decompress lib files fs/ntfs3: Remove unnecessary condition checking from ntfs_file_read_iter fs/ntfs3: Fix integer overflow in ni_fiemap with fiemap_prep() fs/ntfs3: Restyle comments to better align with kernel-doc fs/ntfs3: Rework file operations fs/ntfs3: Remove fat ioctl's from ntfs3 driver for now fs/ntfs3: Restyle comments to better align with kernel-doc fs/ntfs3: Fix error handling in indx_insert_into_root() fs/ntfs3: Potential NULL dereference in hdr_find_split() fs/ntfs3: Fix error code in indx_add_allocate() fs/ntfs3: fix an error code in ntfs_get_acl_ex() fs/ntfs3: add checks for allocation failure fs/ntfs3: Use kcalloc/kmalloc_array over kzalloc/kmalloc fs/ntfs3: Do not use driver own alloc wrappers fs/ntfs3: Use kernel ALIGN macros over driver specific fs/ntfs3: Restyle comment block in ni_parse_reparse() fs/ntfs3: Remove unused including <linux/version.h> fs/ntfs3: Fix fall-through warnings for Clang fs/ntfs3: Fix one none utf8 char in source file ...
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git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fsLinus Torvalds authored
Pull f2fs updates from Jaegeuk Kim: "In this cycle, we've addressed some performance issues such as lock contention, misbehaving compress_cache, allowing extent_cache for compressed files, and new sysfs to adjust ra_size for fadvise. In order to diagnose the performance issues quickly, we also added an iostat which shows the IO latencies periodically. On the stability side, we've found two memory leakage cases in the error path in compression flow. And, we've also fixed various corner cases in fiemap, quota, checkpoint=disable, zstd, and so on. Enhancements: - avoid long checkpoint latency by releasing nat_tree_lock - collect and show iostats periodically - support extent_cache for compressed files - add a sysfs entry to manage ra_size given fadvise(POSIX_FADV_SEQUENTIAL) - report f2fs GC status via sysfs - add discard_unit=%s in mount option to handle zoned device Bug fixes: - fix two memory leakages when an error happens in the compressed IO flow - fix commpress_cache to get the right LBA - fix fiemap to deal with compressed case correctly - fix wrong EIO returns due to SBI_NEED_FSCK - fix missing writes when enabling checkpoint back - fix quota deadlock - fix zstd level mount option In addition to the above major updates, we've cleaned up several code paths such as dio, unnecessary operations, debugfs/f2fs/status, sanity check, and typos" * tag 'f2fs-for-5.15-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs: (46 commits) f2fs: should put a page beyond EOF when preparing a write f2fs: deallocate compressed pages when error happens f2fs: enable realtime discard iff device supports discard f2fs: guarantee to write dirty data when enabling checkpoint back f2fs: fix to unmap pages from userspace process in punch_hole() f2fs: fix unexpected ENOENT comes from f2fs_map_blocks() f2fs: fix to account missing .skipped_gc_rwsem f2fs: adjust unlock order for cleanup f2fs: Don't create discard thread when device doesn't support realtime discard f2fs: rebuild nat_bits during umount f2fs: introduce periodic iostat io latency traces f2fs: separate out iostat feature f2fs: compress: do sanity check on cluster f2fs: fix description about main_blkaddr node f2fs: convert S_IRUGO to 0444 f2fs: fix to keep compatibility of fault injection interface f2fs: support fault injection for f2fs_kmem_cache_alloc() f2fs: compress: allow write compress released file after truncate to zero f2fs: correct comment in segment.h f2fs: improve sbi status info in debugfs/f2fs/status ...
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git://git.linux-nfs.org/projects/anna/linux-nfsLinus Torvalds authored
Pull NFS client updates from Anna Schumaker: "New Features: - Better client responsiveness when server isn't replying - Use refcount_t in sunrpc rpc_client refcount tracking - Add srcaddr and dst_port to the sunrpc sysfs info files - Add basic support for connection sharing between servers with multiple NICs` Bugfixes and Cleanups: - Sunrpc tracepoint cleanups - Disconnect after ib_post_send() errors to avoid deadlocks - Fix for tearing down rpcrdma_reps - Fix a potential pNFS layoutget livelock loop - pNFS layout barrier fixes - Fix a potential memory corruption in rpc_wake_up_queued_task_set_status() - Fix reconnection locking - Fix return value of get_srcport() - Remove rpcrdma_post_sends() - Remove pNFS dead code - Remove copy size restriction for inter-server copies - Overhaul the NFS callback service - Clean up sunrpc TCP socket shutdowns - Always provide aligned buffers to RPC read layers" * tag 'nfs-for-5.15-1' of git://git.linux-nfs.org/projects/anna/linux-nfs: (39 commits) NFS: Always provide aligned buffers to the RPC read layers NFSv4.1 add network transport when session trunking is detected SUNRPC enforce creation of no more than max_connect xprts NFSv4 introduce max_connect mount options SUNRPC add xps_nunique_destaddr_xprts to xprt_switch_info in sysfs SUNRPC keep track of number of transports to unique addresses NFSv3: Delete duplicate judgement in nfs3_async_handle_jukebox SUNRPC: Tweak TCP socket shutdown in the RPC client SUNRPC: Simplify socket shutdown when not reusing TCP ports NFSv4.2: remove restriction of copy size for inter-server copy. NFS: Clean up the synopsis of callback process_op() NFS: Extract the xdr_init_encode/decode() calls from decode_compound NFS: Remove unused callback void decoder NFS: Add a private local dispatcher for NFSv4 callback operations SUNRPC: Eliminate the RQ_AUTHERR flag SUNRPC: Set rq_auth_stat in the pg_authenticate() callout SUNRPC: Add svc_rqst::rq_auth_stat SUNRPC: Add dst_port to the sysfs xprt info file SUNRPC: Add srcaddr as a file in sysfs sunrpc: Fix return value of get_srcport() ...
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- 03 Sep, 2021 13 commits
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Linus Torvalds authored
Merge tag 'linux-kselftest-next-5.15-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest Pull Kselftest updates from Shuah Khan: "Fixes to build and test failures: - openat2 test failure for O_LARGEFILE flag on ARM64 - x86 test build failures related to glibc 2.34 adding support for variable sized MINSIGSTKSZ and SIGSTKSZ - removing obsolete configs in sync and cpufreq config files - minor spelling and duplicate header include cleanups" * tag 'linux-kselftest-next-5.15-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest: selftests/cpufreq: Rename DEBUG_PI_LIST to DEBUG_PLIST selftests/sync: Remove the deprecated config SYNC selftests: safesetid: Fix spelling mistake "cant" -> "can't" selftests/x86: Fix error: variably modified 'altstack_data' at file scope kselftest:sched: remove duplicate include in cs_prctl_test.c selftests: openat2: Fix testing failure for O_LARGEFILE flag
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git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuildLinus Torvalds authored
Pull Kbuild updates from Masahiro Yamada: - Add -s option (strict mode) to merge_config.sh to make it fail when any symbol is redefined. - Show a warning if a different compiler is used for building external modules. - Infer --target from ARCH for CC=clang to let you cross-compile the kernel without CROSS_COMPILE. - Make the integrated assembler default (LLVM_IAS=1) for CC=clang. - Add <linux/stdarg.h> to the kernel source instead of borrowing <stdarg.h> from the compiler. - Add Nick Desaulniers as a Kbuild reviewer. - Drop stale cc-option tests. - Fix the combination of CONFIG_TRIM_UNUSED_KSYMS and CONFIG_LTO_CLANG to handle symbols in inline assembly. - Show a warning if 'FORCE' is missing for if_changed rules. - Various cleanups * tag 'kbuild-v5.15' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild: (39 commits) kbuild: redo fake deps at include/ksym/*.h kbuild: clean up objtool_args slightly modpost: get the *.mod file path more simply checkkconfigsymbols.py: Fix the '--ignore' option kbuild: merge vmlinux_link() between ARCH=um and other architectures kbuild: do not remove 'linux' link in scripts/link-vmlinux.sh kbuild: merge vmlinux_link() between the ordinary link and Clang LTO kbuild: remove stale *.symversions kbuild: remove unused quiet_cmd_update_lto_symversions gen_compile_commands: extract compiler command from a series of commands x86: remove cc-option-yn test for -mtune= arc: replace cc-option-yn uses with cc-option s390: replace cc-option-yn uses with cc-option ia64: move core-y in arch/ia64/Makefile to arch/ia64/Kbuild sparc: move the install rule to arch/sparc/Makefile security: remove unneeded subdir-$(CONFIG_...) kbuild: sh: remove unused install script kbuild: Fix 'no symbols' warning when CONFIG_TRIM_UNUSD_KSYMS=y kbuild: Switch to 'f' variants of integrated assembler flag kbuild: Shuffle blank line to improve comment meaning ...
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Linus Torvalds authored
Merge branch 'stable/for-linus-5.15-rc0' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/ibft Pull ibft fix from Konrad Rzeszutek Wilk: "An arm64 compile fix for the new code that fixed the iBFT KASLR handling. I missed the original 0-day build email report" * 'stable/for-linus-5.15-rc0' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/ibft: iscsi_ibft: Fix isa_bus_to_virt not working under ARM
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git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linuxLinus Torvalds authored
Pull powerpc updates from Michael Ellerman: - Convert pseries & powernv to use MSI IRQ domains. - Rework the pseries CPU numbering so that CPUs that are removed, and later re-added, are given a CPU number on the same node as previously, when possible. - Add support for a new more flexible device-tree format for specifying NUMA distances. - Convert powerpc to GENERIC_PTDUMP. - Retire sbc8548 and sbc8641d board support. - Various other small features and fixes. Thanks to Alexey Kardashevskiy, Aneesh Kumar K.V, Anton Blanchard, Cédric Le Goater, Christophe Leroy, Emmanuel Gil Peyrot, Fabiano Rosas, Fangrui Song, Finn Thain, Gautham R. Shenoy, Hari Bathini, Joel Stanley, Jordan Niethe, Kajol Jain, Laurent Dufour, Leonardo Bras, Lukas Bulwahn, Marc Zyngier, Masahiro Yamada, Michal Suchanek, Nathan Chancellor, Nicholas Piggin, Parth Shah, Paul Gortmaker, Pratik R. Sampat, Randy Dunlap, Sebastian Andrzej Siewior, Srikar Dronamraju, Wan Jiabing, Xiongwei Song, and Zheng Yongjun. * tag 'powerpc-5.15-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: (154 commits) powerpc/bug: Cast to unsigned long before passing to inline asm powerpc/ptdump: Fix generic ptdump for 64-bit KVM: PPC: Fix clearing never mapped TCEs in realmode powerpc/pseries/iommu: Rename "direct window" to "dma window" powerpc/pseries/iommu: Make use of DDW for indirect mapping powerpc/pseries/iommu: Find existing DDW with given property name powerpc/pseries/iommu: Update remove_dma_window() to accept property name powerpc/pseries/iommu: Reorganize iommu_table_setparms*() with new helper powerpc/pseries/iommu: Add ddw_property_create() and refactor enable_ddw() powerpc/pseries/iommu: Allow DDW windows starting at 0x00 powerpc/pseries/iommu: Add ddw_list_new_entry() helper powerpc/pseries/iommu: Add iommu_pseries_alloc_table() helper powerpc/kernel/iommu: Add new iommu_table_in_use() helper powerpc/pseries/iommu: Replace hard-coded page shift powerpc/numa: Update cpu_cpu_map on CPU online/offline powerpc/numa: Print debug statements only when required powerpc/numa: convert printk to pr_xxx powerpc/numa: Drop dbg in favour of pr_debug powerpc/smp: Enable CACHE domain for shared processor powerpc/smp: Update cpu_core_map on all PowerPc systems ...
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git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linuxLinus Torvalds authored
Pull parisc architecture fixes from Helge Deller: "Fix an unaligned-access crash in the bootloader and drop asm/swab.h" * tag 'for-5.15/parisc-2' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux: parisc: Fix unaligned-access crash in bootloader parisc: Drop __arch_swab16(), arch_swab24(), _arch_swab32() and __arch_swab64() functions
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git://git.kernel.org/pub/scm/linux/kernel/git/mips/linuxLinus Torvalds authored
Pull MIPS updates from Thomas Bogendoerfer: - converted Pistachio platform to use MIPS generic kernel - fixes and cleanups * tag 'mips_5.15' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux: (29 commits) MIPS: Malta: fix alignment of the devicetree buffer MIPS: ingenic: Unconditionally enable clock of CPU #0 MIPS: mscc: ocelot: mark the phy-mode for internal PHY ports MIPS: mscc: ocelot: disable all switch ports by default MAINTAINERS: adjust PISTACHIO SOC SUPPORT after its retirement MIPS: Return true/false (not 1/0) from bool functions MIPS: generic: Return true/false (not 1/0) from bool functions MIPS: Make a alias for pistachio_defconfig MIPS: Retire MACH_PISTACHIO MIPS: config: generic: Add config for Marduk board pinctrl: pistachio: Make it as an option phy: pistachio-usb: Depend on MIPS || COMPILE_TEST clocksource/drivers/pistachio: Make it selectable for MIPS clk: pistachio: Make it selectable for generic MIPS kernel MIPS: DTS: Pistachio add missing cpc and cdmm MIPS: generic: Allow generating FIT image for Marduk board MIPS: locking/atomic: Fix atomic{_64,}_sub_if_positive MIPS: loongson2ef: don't build serial.o unconditionally MIPS: Replace deprecated CPU-hotplug functions. MIPS: Alchemy: Fix spelling contraction "cant" -> "can't" ...
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git://github.com/openrisc/linuxLinus Torvalds authored
Pull OpenRISC updates from Stafford Horne: "A few cleanups and compiler warning fixes for OpenRISC. Also, this includes dts and defconfig updates to enable Ethernet on OpenRISC/Litex FPGA SoC's now that the LiteEth driver has gone upstream" * tag 'for-linus' of git://github.com/openrisc/linux: openrisc/litex: Update defconfig openrisc/litex: Add ethernet device openrisc/litex: Update uart address openrisc: Fix compiler warnings in setup openrisc: rename or32 code & comments to or1k openrisc: don't printk() unconditionally
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Linus Torvalds authored
Merge tag 'livepatching-for-5.15' of git://git.kernel.org/pub/scm/linux/kernel/git/livepatching/livepatching Pull livepatching update from Petr Mladek. * tag 'livepatching-for-5.15' of git://git.kernel.org/pub/scm/linux/kernel/git/livepatching/livepatching: livepatch: Replace deprecated CPU-hotplug functions.
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git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommuLinus Torvalds authored
Pull iommu updates from Joerg Roedel: - New DART IOMMU driver for Apple Silicon M1 chips - Optimizations for iommu_[map/unmap] performance - Selective TLB flush support for the AMD IOMMU driver to make it more efficient on emulated IOMMUs - Rework IOVA setup and default domain type setting to move more code out of IOMMU drivers and to support runtime switching between certain types of default domains - VT-d Updates from Lu Baolu: - Update the virtual command related registers - Enable Intel IOMMU scalable mode by default - Preset A/D bits for user space DMA usage - Allow devices to have more than 32 outstanding PRs - Various cleanups - ARM SMMU Updates from Will Deacon: SMMUv3: - Minor optimisation to avoid zeroing struct members on CMD submission - Increased use of batched commands to reduce submission latency - Refactoring in preparation for ECMDQ support SMMUv2: - Fix races when probing devices with identical StreamIDs - Optimise walk cache flushing for Qualcomm implementations - Allow deep sleep states for some Qualcomm SoCs with shared clocks - Various smaller optimizations, cleanups, and fixes * tag 'iommu-updates-v5.15' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu: (85 commits) iommu/io-pgtable: Abstract iommu_iotlb_gather access iommu/arm-smmu: Fix missing unlock on error in arm_smmu_device_group() iommu/vt-d: Add present bit check in pasid entry setup helpers iommu/vt-d: Use pasid_pte_is_present() helper function iommu/vt-d: Drop the kernel doc annotation iommu/vt-d: Allow devices to have more than 32 outstanding PRs iommu/vt-d: Preset A/D bits for user space DMA usage iommu/vt-d: Enable Intel IOMMU scalable mode by default iommu/vt-d: Refactor Kconfig a bit iommu/vt-d: Remove unnecessary oom message iommu/vt-d: Update the virtual command related registers iommu: Allow enabling non-strict mode dynamically iommu: Merge strictness and domain type configs iommu: Only log strictness for DMA domains iommu: Expose DMA domain strictness via sysfs iommu: Express DMA strictness via the domain type iommu/vt-d: Prepare for multiple DMA domain types iommu/arm-smmu: Prepare for multiple DMA domain types iommu/amd: Prepare for multiple DMA domain types iommu: Introduce explicit type for non-strict DMA domains ... -
Linus Torvalds authored
Merge branch 'stable/for-linus-5.15' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/swiotlb Pull swiotlb updates from Konrad Rzeszutek Wilk: "A new feature called restricted DMA pools. It allows SWIOTLB to utilize per-device (or per-platform) allocated memory pools instead of using the global one. The first big user of this is ARM Confidential Computing where the memory for DMA operations can be set per platform" * 'stable/for-linus-5.15' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/swiotlb: (23 commits) swiotlb: use depends on for DMA_RESTRICTED_POOL of: restricted dma: Don't fail device probe on rmem init failure of: Move of_dma_set_restricted_buffer() into device.c powerpc/svm: Don't issue ultracalls if !mem_encrypt_active() s390/pv: fix the forcing of the swiotlb swiotlb: Free tbl memory in swiotlb_exit() swiotlb: Emit diagnostic in swiotlb_exit() swiotlb: Convert io_default_tlb_mem to static allocation of: Return success from of_dma_set_restricted_buffer() when !OF_ADDRESS swiotlb: add overflow checks to swiotlb_bounce swiotlb: fix implicit debugfs declarations of: Add plumbing for restricted DMA pool dt-bindings: of: Add restricted DMA pool swiotlb: Add restricted DMA pool initialization swiotlb: Add restricted DMA alloc/free support swiotlb: Refactor swiotlb_tbl_unmap_single swiotlb: Move alloc_size to swiotlb_find_slots swiotlb: Use is_swiotlb_force_bounce for swiotlb data bouncing swiotlb: Update is_swiotlb_active to add a struct device argument swiotlb: Update is_swiotlb_buffer to add a struct device argument ...
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Linus Torvalds authored
Merge misc updates from Andrew Morton: "173 patches. Subsystems affected by this series: ia64, ocfs2, block, and mm (debug, pagecache, gup, swap, shmem, memcg, selftests, pagemap, mremap, bootmem, sparsemem, vmalloc, kasan, pagealloc, memory-failure, hugetlb, userfaultfd, vmscan, compaction, mempolicy, memblock, oom-kill, migration, ksm, percpu, vmstat, and madvise)" * emailed patches from Andrew Morton <akpm@linux-foundation.org>: (173 commits) mm/madvise: add MADV_WILLNEED to process_madvise() mm/vmstat: remove unneeded return value mm/vmstat: simplify the array size calculation mm/vmstat: correct some wrong comments mm/percpu,c: remove obsolete comments of pcpu_chunk_populated() selftests: vm: add COW time test for KSM pages selftests: vm: add KSM merging time test mm: KSM: fix data type selftests: vm: add KSM merging across nodes test selftests: vm: add KSM zero page merging test selftests: vm: add KSM unmerge test selftests: vm: add KSM merge test mm/migrate: correct kernel-doc notation mm: wire up syscall process_mrelease mm: introduce process_mrelease system call memblock: make memblock_find_in_range method private mm/mempolicy.c: use in_task() in mempolicy_slab_node() mm/mempolicy: unify the create() func for bind/interleave/prefer-many policies mm/mempolicy: advertise new MPOL_PREFERRED_MANY mm/hugetlb: add support for mempolicy MPOL_PREFERRED_MANY ...
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zhangkui authored
There is a usecase in Android that an app process's memory is swapped out by process_madvise() with MADV_PAGEOUT, such as the memory is swapped to zram or a backing device. When the process is scheduled to running, like switch to foreground, multiple page faults may cause the app dropped frames. To reduce the problem, System Management Software can read-ahead memory of the process immediately when the app switches to forground. Calling process_madvise() with MADV_WILLNEED can meet this need. Link: https://lkml.kernel.org/r/20210804082010.12482-1-zhangkui@oppo.comSigned-off-by:
zhangkui <zhangkui@oppo.com> Cc: David Hildenbrand <david@redhat.com> Signed-off-by:
Andrew Morton <akpm@linux-foundation.org> Signed-off-by:
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Miaohe Lin authored
The return value of pagetypeinfo_showfree and pagetypeinfo_showblockcount are unused now. Remove them. Link: https://lkml.kernel.org/r/20210715122911.15700-4-linmiaohe@huawei.comSigned-off-by:
Miaohe Lin <linmiaohe@huawei.com> Reviewed-by:
David Hildenbrand <david@redhat.com> Signed-off-by:
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