linux/tools/include/uapi/asm-generic, branch for-next

tools headers: Sync uapi/asm-generic/mman.h with the kernel sources

2024-12-04T22:34:50Z

To pick up the changes in this cset: 3630e82ab6bd2642 ("mman: Add map_shadow_stack() flags") This addresses these perf build warnings: Warning: Kernel ABI header differences: diff -u tools/include/uapi/asm-generic/mman.h include/uapi/asm-generic/mman.h Please see tools/include/uapi/README for further details. Reviewed-by: James Clark Cc: Arnd Bergmann Cc: Mark Brown Cc: Catalin Marinas Cc: linux-arch@vger.kernel.org Link: https://lore.kernel.org/r/20241203035349.1901262-8-namhyung@kernel.org Signed-off-by: Namhyung Kim

tools headers: Sync *xattrat syscall changes with the kernel sources

2024-12-04T22:34:50Z

To pick up the changes in this cset: 6140be90ec70c39f ("fs/xattr: add *at family syscalls") This addresses these perf build warnings: Warning: Kernel ABI header differences: diff -u tools/include/uapi/asm-generic/unistd.h include/uapi/asm-generic/unistd.h diff -u tools/perf/arch/x86/entry/syscalls/syscall_32.tbl arch/x86/entry/syscalls/syscall_32.tbl diff -u tools/perf/arch/x86/entry/syscalls/syscall_64.tbl arch/x86/entry/syscalls/syscall_64.tbl diff -u tools/perf/arch/powerpc/entry/syscalls/syscall.tbl arch/powerpc/kernel/syscalls/syscall.tbl diff -u tools/perf/arch/s390/entry/syscalls/syscall.tbl arch/s390/kernel/syscalls/syscall.tbl diff -u tools/perf/arch/mips/entry/syscalls/syscall_n64.tbl arch/mips/kernel/syscalls/syscall_n64.tbl The arm64 changes are not included as it requires more changes in the tools. It'll be worked for the later cycle. Please see tools/include/uapi/README for further details. Reviewed-by: James Clark Cc: Arnd Bergmann Cc: Christian Brauner CC: x86@kernel.org CC: linux-mips@vger.kernel.org CC: linuxppc-dev@lists.ozlabs.org CC: linux-s390@vger.kernel.org Link: https://lore.kernel.org/r/20241203035349.1901262-7-namhyung@kernel.org Signed-off-by: Namhyung Kim

Merge tag 'mm-stable-2024-11-18-19-27' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

2024-11-23T17:58:07Z

Pull MM updates from Andrew Morton: - The series "zram: optimal post-processing target selection" from Sergey Senozhatsky improves zram's post-processing selection algorithm. This leads to improved memory savings. - Wei Yang has gone to town on the mapletree code, contributing several series which clean up the implementation: - "refine mas_mab_cp()" - "Reduce the space to be cleared for maple_big_node" - "maple_tree: simplify mas_push_node()" - "Following cleanup after introduce mas_wr_store_type()" - "refine storing null" - The series "selftests/mm: hugetlb_fault_after_madv improvements" from David Hildenbrand fixes this selftest for s390. - The series "introduce pte_offset_map_{ro|rw}_nolock()" from Qi Zheng implements some rationaizations and cleanups in the page mapping code. - The series "mm: optimize shadow entries removal" from Shakeel Butt optimizes the file truncation code by speeding up the handling of shadow entries. - The series "Remove PageKsm()" from Matthew Wilcox completes the migration of this flag over to being a folio-based flag. - The series "Unify hugetlb into arch_get_unmapped_area functions" from Oscar Salvador implements a bunch of consolidations and cleanups in the hugetlb code. - The series "Do not shatter hugezeropage on wp-fault" from Dev Jain takes away the wp-fault time practice of turning a huge zero page into small pages. Instead we replace the whole thing with a THP. More consistent cleaner and potentiall saves a large number of pagefaults. - The series "percpu: Add a test case and fix for clang" from Andy Shevchenko enhances and fixes the kernel's built in percpu test code. - The series "mm/mremap: Remove extra vma tree walk" from Liam Howlett optimizes mremap() by avoiding doing things which we didn't need to do. - The series "Improve the tmpfs large folio read performance" from Baolin Wang teaches tmpfs to copy data into userspace at the folio size rather than as individual pages. A 20% speedup was observed. - The series "mm/damon/vaddr: Fix issue in damon_va_evenly_split_region()" fro Zheng Yejian fixes DAMON splitting. - The series "memcg-v1: fully deprecate charge moving" from Shakeel Butt removes the long-deprecated memcgv2 charge moving feature. - The series "fix error handling in mmap_region() and refactor" from Lorenzo Stoakes cleanup up some of the mmap() error handling and addresses some potential performance issues. - The series "x86/module: use large ROX pages for text allocations" from Mike Rapoport teaches x86 to use large pages for read-only-execute module text. - The series "page allocation tag compression" from Suren Baghdasaryan is followon maintenance work for the new page allocation profiling feature. - The series "page->index removals in mm" from Matthew Wilcox remove most references to page->index in mm/. A slow march towards shrinking struct page. - The series "damon/{self,kunit}tests: minor fixups for DAMON debugfs interface tests" from Andrew Paniakin performs maintenance work for DAMON's self testing code. - The series "mm: zswap swap-out of large folios" from Kanchana Sridhar improves zswap's batching of compression and decompression. It is a step along the way towards using Intel IAA hardware acceleration for this zswap operation. - The series "kasan: migrate the last module test to kunit" from Sabyrzhan Tasbolatov completes the migration of the KASAN built-in tests over to the KUnit framework. - The series "implement lightweight guard pages" from Lorenzo Stoakes permits userapace to place fault-generating guard pages within a single VMA, rather than requiring that multiple VMAs be created for this. Improved efficiencies for userspace memory allocators are expected. - The series "memcg: tracepoint for flushing stats" from JP Kobryn uses tracepoints to provide increased visibility into memcg stats flushing activity. - The series "zram: IDLE flag handling fixes" from Sergey Senozhatsky fixes a zram buglet which potentially affected performance. - The series "mm: add more kernel parameters to control mTHP" from Maíra Canal enhances our ability to control/configuremultisize THP from the kernel boot command line. - The series "kasan: few improvements on kunit tests" from Sabyrzhan Tasbolatov has a couple of fixups for the KASAN KUnit tests. - The series "mm/list_lru: Split list_lru lock into per-cgroup scope" from Kairui Song optimizes list_lru memory utilization when lockdep is enabled. * tag 'mm-stable-2024-11-18-19-27' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (215 commits) cma: enforce non-zero pageblock_order during cma_init_reserved_mem() mm/kfence: add a new kunit test test_use_after_free_read_nofault() zram: fix NULL pointer in comp_algorithm_show() memcg/hugetlb: add hugeTLB counters to memcg vmstat: call fold_vm_zone_numa_events() before show per zone NUMA event mm: mmap_lock: check trace_mmap_lock_$type_enabled() instead of regcount zram: ZRAM_DEF_COMP should depend on ZRAM MAINTAINERS/MEMORY MANAGEMENT: add document files for mm Docs/mm/damon: recommend academic papers to read and/or cite mm: define general function pXd_init() kmemleak: iommu/iova: fix transient kmemleak false positive mm/list_lru: simplify the list_lru walk callback function mm/list_lru: split the lock to per-cgroup scope mm/list_lru: simplify reparenting and initial allocation mm/list_lru: code clean up for reparenting mm/list_lru: don't export list_lru_add mm/list_lru: don't pass unnecessary key parameters kasan: add kunit tests for kmalloc_track_caller, kmalloc_node_track_caller kasan: change kasan_atomics kunit test as KUNIT_CASE_SLOW kasan: use EXPORT_SYMBOL_IF_KUNIT to export symbols ...

tools: testing: update tools UAPI header for mman-common.h

2024-11-11T08:26:45Z

Import the new MADV_GUARD_INSTALL/REMOVE madvise flags. Link: https://lkml.kernel.org/r/ada462fa73fa1defc114242e446ab625b8290b71.1730123433.git.lorenzo.stoakes@oracle.com Signed-off-by: Lorenzo Stoakes Suggested-by: Vlastimil Babka Suggested-by: Jann Horn Suggested-by: David Hildenbrand Cc: Arnd Bergmann Cc: Christian Brauner Cc: Christoph Hellwig Cc: Chris Zankel Cc: Helge Deller Cc: James E.J. Bottomley Cc: Jeff Xu Cc: John Hubbard Cc: Liam R. Howlett Cc: Matthew Wilcox (Oracle) Cc: Matt Turner Cc: Max Filippov Cc: Muchun Song Cc: Paul E. McKenney Cc: Richard Henderson Cc: Shuah Khan Cc: Shuah Khan Cc: Sidhartha Kumar Cc: Suren Baghdasaryan Cc: Thomas Bogendoerfer Cc: Vlastimil Babka Signed-off-by: Andrew Morton

selftests: txtimestamp: add SCM_TS_OPT_ID test

2024-10-04T18:52:20Z

Extend txtimestamp test to run with fixed tskey using SCM_TS_OPT_ID control message for all types of sockets. Reviewed-by: Jason Xing Reviewed-by: Willem de Bruijn Signed-off-by: Vadim Fedorenko Link: https://patch.msgid.link/20241001125716.2832769-4-vadfed@meta.com Signed-off-by: Jakub Kicinski

tools/include: Sync uapi/asm-generic/unistd.h with the kernel sources

2024-08-07T17:58:51Z

And arch syscall tables to pick up changes from: b1e31c134a8a powerpc: restore some missing spu syscalls d3882564a77c syscalls: fix compat_sys_io_pgetevents_time64 usage 54233a425403 uretprobe: change syscall number, again 63ded110979b uprobe: Change uretprobe syscall scope and number 9142be9e6443 x86/syscall: Mark exit[_group] syscall handlers __noreturn 9aae1baa1c5d x86, arm: Add missing license tag to syscall tables files 5c28424e9a34 syscalls: Fix to add sys_uretprobe to syscall.tbl 190fec72df4a uprobe: Wire up uretprobe system call This should be used to beautify syscall arguments and it addresses these tools/perf build warnings: Warning: Kernel ABI header differences: diff -u tools/include/uapi/asm-generic/unistd.h include/uapi/asm-generic/unistd.h diff -u tools/perf/arch/x86/entry/syscalls/syscall_64.tbl arch/x86/entry/syscalls/syscall_64.tbl diff -u tools/perf/arch/powerpc/entry/syscalls/syscall.tbl arch/powerpc/kernel/syscalls/syscall.tbl diff -u tools/perf/arch/s390/entry/syscalls/syscall.tbl arch/s390/kernel/syscalls/syscall.tbl Please see tools/include/uapi/README for details (it's in the first patch of this series). Cc: Arnd Bergmann Cc: linux-arch@vger.kernel.org Signed-off-by: Namhyung Kim

clone3: drop __ARCH_WANT_SYS_CLONE3 macro

2024-07-10T12:23:38Z

When clone3() was introduced, it was not obvious how each architecture deals with setting up the stack and keeping the register contents in a fork()-like system call, so this was left for the architecture maintainers to implement, with __ARCH_WANT_SYS_CLONE3 defined by those that already implement it. Five years later, we still have a few architectures left that are missing clone3(), and the macro keeps getting in the way as it's fundamentally different from all the other __ARCH_WANT_SYS_* macros that are meant to provide backwards-compatibility with applications using older syscalls that are no longer provided by default. Address this by reversing the polarity of the macro, adding an __ARCH_BROKEN_SYS_CLONE3 macro to all architectures that don't already provide the syscall, and remove __ARCH_WANT_SYS_CLONE3 from all the other ones. Acked-by: Geert Uytterhoeven Signed-off-by: Arnd Bergmann

tools headers: Update the syscall tables and unistd.h, mostly to support the new 'mseal' syscall

2024-05-28T14:10:00Z

But also to wire up shadow stacks on 32-bit x86, picking up those changes from these csets: ff388fe5c481d39c ("mseal: wire up mseal syscall") 2883f01ec37dd866 ("x86/shstk: Enable shadow stacks for x32") This makes 'perf trace' support it, now its possible, for instance to do: # perf trace -e mseal --max-stack=16 Here is an example with the 'sendmmsg' syscall: root@x1:~# perf trace -e sendmmsg --max-stack 16 --max-events=1 0.000 ( 0.062 ms): dbus-broker/1012 sendmmsg(fd: 150, mmsg: 0x7ffef57cca50, vlen: 1, flags: DONTWAIT|NOSIGNAL) = 1 syscall_exit_to_user_mode_prepare ([kernel.kallsyms]) syscall_exit_to_user_mode_prepare ([kernel.kallsyms]) syscall_exit_to_user_mode ([kernel.kallsyms]) do_syscall_64 ([kernel.kallsyms]) entry_SYSCALL_64 ([kernel.kallsyms]) [0x117ce7] (/usr/lib64/libc.so.6 (deleted)) root@x1:~# To do a system wide tracing of the new 'mseal' syscall with a backtrace of at most 16 entries. This addresses these perf tools build warnings: Warning: Kernel ABI header differences: diff -u tools/include/uapi/asm-generic/unistd.h include/uapi/asm-generic/unistd.h diff -u tools/perf/arch/x86/entry/syscalls/syscall_64.tbl arch/x86/entry/syscalls/syscall_64.tbl diff -u tools/perf/arch/powerpc/entry/syscalls/syscall.tbl arch/powerpc/kernel/syscalls/syscall.tbl diff -u tools/perf/arch/s390/entry/syscalls/syscall.tbl arch/s390/kernel/syscalls/syscall.tbl diff -u tools/perf/arch/mips/entry/syscalls/syscall_n64.tbl arch/mips/kernel/syscalls/syscall_n64.tbl Cc: Adrian Hunter Cc: Andrew Morton Cc: H J Lu Cc: Ian Rogers Cc: Ingo Molnar Cc: Jeff Xu Cc: Jiri Olsa Cc: Namhyung Kim Link: https://lore.kernel.org/lkml/ZlXlo4TNcba4wnVZ@x1 Signed-off-by: Arnaldo Carvalho de Melo

tools headers: Synchronize linux/bits.h with the kernel sources

2024-04-27T01:13:10Z

To pick up the changes in this cset: 3c7a8e190bc58081 ("uapi: introduce uapi-friendly macros for GENMASK") That just causes perf to rebuild. Its just some macros going to an uapi header that we now have to grab a copy into tools/ as well. This addresses this perf build warning: Warning: Kernel ABI header differences: diff -u tools/include/linux/bits.h include/linux/bits.h Cc: Adrian Hunter Cc: Ian Rogers Cc: Jiri Olsa Cc: Kan Liang Cc: Namhyung Kim Cc: Paolo Bonzini Link: https://lore.kernel.org/lkml/ZiwJsFOBez0MS4r9@x1 Signed-off-by: Arnaldo Carvalho de Melo

tools headers: Remove now unused copies of uapi/{fcntl,openat2}.h and asm/fcntl.h

2024-03-21T13:41:27Z

These were used to build perf to provide defines not available in older distros, but this was back in 2017, nowadays all the distros that are supported and I have build containers for work using just the system headers, so ditch them. Some of these older distros may not have things that are used in 'perf trace', but then they also don't have libtraceevent packages, so don't build 'perf trace'. Cc: Adrian Hunter Cc: Ian Rogers Cc: Jiri Olsa Cc: Namhyung Kim Link: https://lore.kernel.org/lkml/20240315204835.748716-5-acme@kernel.org Signed-off-by: Arnaldo Carvalho de Melo